The Independent JPEG Group's JPEG software v9a

Makefile.am

@@ -38,11 +38,12 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 
 # Configuration files
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
@@ -50,11 +51,11 @@ CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vms
 
 # Support scripts for configure
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
+        missing ar-lib
 
 # Miscellaneous support files
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
-        libjpeg.map
 
 # Test support files
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
@@ -118,7 +119,7 @@ uninstall-local:
 # Run tests
 test: check-local
 check-local:
-	$(RM) testout*
+	rm -f testout*
 	./djpeg -dct int -ppm -outfile testout.ppm  $(srcdir)/testorig.jpg
 	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  $(srcdir)/testorig.jpg
 	./cjpeg -dct int -outfile testout.jpg  $(srcdir)/testimg.ppm

Makefile.in

@@ -1,9 +1,8 @@
-# Makefile.in generated by automake 1.11 from Makefile.am.
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+
-# Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -24,6 +23,51 @@
 
 
 VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
 pkgdatadir = $(datadir)/@PACKAGE@
 pkgincludedir = $(includedir)/@PACKAGE@
 pkglibdir = $(libdir)/@PACKAGE@
@@ -43,15 +87,14 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 target_triplet = @target@
-ANSI2KNR = @ANSI2KNR@
 @HAVE_LD_VERSION_SCRIPT_TRUE@am__append_1 = -Wl,--version-script=$(srcdir)/libjpeg.map
 bin_PROGRAMS = cjpeg$(EXEEXT) djpeg$(EXEEXT) jpegtran$(EXEEXT) \
 	rdjpgcom$(EXEEXT) wrjpgcom$(EXEEXT)
 subdir = .
-DIST_COMMON = README $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
 	$(top_srcdir)/configure $(am__configure_deps) \
-	$(srcdir)/jconfig.cfg ansi2knr.c ansi2knr.1 depcomp \
+	$(srcdir)/jconfig.cfg depcomp $(include_HEADERS) \
-	$(include_HEADERS) $(noinst_HEADERS)
+	$(noinst_HEADERS)
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
@@ -83,51 +126,68 @@ am__nobase_list = $(am__nobase_strip_setup); \
 am__base_list = \
   sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
   sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
 am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" \
 	"$(DESTDIR)$(man1dir)" "$(DESTDIR)$(includedir)"
 LTLIBRARIES = $(lib_LTLIBRARIES)
 libjpeg_la_LIBADD =
-am__objects_1 = jaricom$U.lo jcapimin$U.lo jcapistd$U.lo jcarith$U.lo \
+am__objects_1 = jaricom.lo jcapimin.lo jcapistd.lo jcarith.lo \
-	jccoefct$U.lo jccolor$U.lo jcdctmgr$U.lo jchuff$U.lo \
+	jccoefct.lo jccolor.lo jcdctmgr.lo jchuff.lo jcinit.lo \
-	jcinit$U.lo jcmainct$U.lo jcmarker$U.lo jcmaster$U.lo \
+	jcmainct.lo jcmarker.lo jcmaster.lo jcomapi.lo jcparam.lo \
-	jcomapi$U.lo jcparam$U.lo jcprepct$U.lo jcsample$U.lo \
+	jcprepct.lo jcsample.lo jctrans.lo jdapimin.lo jdapistd.lo \
-	jctrans$U.lo jdapimin$U.lo jdapistd$U.lo jdarith$U.lo \
+	jdarith.lo jdatadst.lo jdatasrc.lo jdcoefct.lo jdcolor.lo \
-	jdatadst$U.lo jdatasrc$U.lo jdcoefct$U.lo jdcolor$U.lo \
+	jddctmgr.lo jdhuff.lo jdinput.lo jdmainct.lo jdmarker.lo \
-	jddctmgr$U.lo jdhuff$U.lo jdinput$U.lo jdmainct$U.lo \
+	jdmaster.lo jdmerge.lo jdpostct.lo jdsample.lo jdtrans.lo \
-	jdmarker$U.lo jdmaster$U.lo jdmerge$U.lo jdpostct$U.lo \
+	jerror.lo jfdctflt.lo jfdctfst.lo jfdctint.lo jidctflt.lo \
-	jdsample$U.lo jdtrans$U.lo jerror$U.lo jfdctflt$U.lo \
+	jidctfst.lo jidctint.lo jquant1.lo jquant2.lo jutils.lo \
-	jfdctfst$U.lo jfdctint$U.lo jidctflt$U.lo jidctfst$U.lo \
+	jmemmgr.lo @MEMORYMGR@.lo
-	jidctint$U.lo jquant1$U.lo jquant2$U.lo jutils$U.lo \
-	jmemmgr$U.lo @MEMORYMGR@$U.lo
 am_libjpeg_la_OBJECTS = $(am__objects_1)
 libjpeg_la_OBJECTS = $(am_libjpeg_la_OBJECTS)
-AM_V_lt = $(am__v_lt_$(V))
+AM_V_lt = $(am__v_lt_@AM_V@)
-am__v_lt_ = $(am__v_lt_$(AM_DEFAULT_VERBOSITY))
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
 am__v_lt_0 = --silent
+am__v_lt_1 = 
 libjpeg_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
 	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(libjpeg_la_LDFLAGS) $(LDFLAGS) -o $@
 PROGRAMS = $(bin_PROGRAMS)
-am_cjpeg_OBJECTS = cjpeg$U.$(OBJEXT) rdppm$U.$(OBJEXT) \
+am_cjpeg_OBJECTS = cjpeg.$(OBJEXT) rdppm.$(OBJEXT) rdgif.$(OBJEXT) \
-	rdgif$U.$(OBJEXT) rdtarga$U.$(OBJEXT) rdrle$U.$(OBJEXT) \
+	rdtarga.$(OBJEXT) rdrle.$(OBJEXT) rdbmp.$(OBJEXT) \
-	rdbmp$U.$(OBJEXT) rdswitch$U.$(OBJEXT) cdjpeg$U.$(OBJEXT)
+	rdswitch.$(OBJEXT) cdjpeg.$(OBJEXT)
 cjpeg_OBJECTS = $(am_cjpeg_OBJECTS)
 cjpeg_DEPENDENCIES = libjpeg.la
-am_djpeg_OBJECTS = djpeg$U.$(OBJEXT) wrppm$U.$(OBJEXT) \
+am_djpeg_OBJECTS = djpeg.$(OBJEXT) wrppm.$(OBJEXT) wrgif.$(OBJEXT) \
-	wrgif$U.$(OBJEXT) wrtarga$U.$(OBJEXT) wrrle$U.$(OBJEXT) \
+	wrtarga.$(OBJEXT) wrrle.$(OBJEXT) wrbmp.$(OBJEXT) \
-	wrbmp$U.$(OBJEXT) rdcolmap$U.$(OBJEXT) cdjpeg$U.$(OBJEXT)
+	rdcolmap.$(OBJEXT) cdjpeg.$(OBJEXT)
 djpeg_OBJECTS = $(am_djpeg_OBJECTS)
 djpeg_DEPENDENCIES = libjpeg.la
-am_jpegtran_OBJECTS = jpegtran$U.$(OBJEXT) rdswitch$U.$(OBJEXT) \
+am_jpegtran_OBJECTS = jpegtran.$(OBJEXT) rdswitch.$(OBJEXT) \
-	cdjpeg$U.$(OBJEXT) transupp$U.$(OBJEXT)
+	cdjpeg.$(OBJEXT) transupp.$(OBJEXT)
 jpegtran_OBJECTS = $(am_jpegtran_OBJECTS)
 jpegtran_DEPENDENCIES = libjpeg.la
-am_rdjpgcom_OBJECTS = rdjpgcom$U.$(OBJEXT)
+am_rdjpgcom_OBJECTS = rdjpgcom.$(OBJEXT)
 rdjpgcom_OBJECTS = $(am_rdjpgcom_OBJECTS)
 rdjpgcom_LDADD = $(LDADD)
-am_wrjpgcom_OBJECTS = wrjpgcom$U.$(OBJEXT)
+am_wrjpgcom_OBJECTS = wrjpgcom.$(OBJEXT)
 wrjpgcom_OBJECTS = $(am_wrjpgcom_OBJECTS)
 wrjpgcom_LDADD = $(LDADD)
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
 DEFAULT_INCLUDES = -I.@am__isrc@
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -138,30 +198,51 @@ LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
 	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
 	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
 	$(AM_CFLAGS) $(CFLAGS)
-AM_V_CC = $(am__v_CC_$(V))
+AM_V_CC = $(am__v_CC_@AM_V@)
-am__v_CC_ = $(am__v_CC_$(AM_DEFAULT_VERBOSITY))
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
 am__v_CC_0 = @echo "  CC      " $@;
-AM_V_at = $(am__v_at_$(V))
+am__v_CC_1 = 
-am__v_at_ = $(am__v_at_$(AM_DEFAULT_VERBOSITY))
-am__v_at_0 = @
 CCLD = $(CC)
 LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
 	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) -o $@
-AM_V_CCLD = $(am__v_CCLD_$(V))
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
-am__v_CCLD_ = $(am__v_CCLD_$(AM_DEFAULT_VERBOSITY))
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
 am__v_CCLD_0 = @echo "  CCLD    " $@;
-AM_V_GEN = $(am__v_GEN_$(V))
+am__v_CCLD_1 = 
-am__v_GEN_ = $(am__v_GEN_$(AM_DEFAULT_VERBOSITY))
-am__v_GEN_0 = @echo "  GEN   " $@;
 SOURCES = $(libjpeg_la_SOURCES) $(cjpeg_SOURCES) $(djpeg_SOURCES) \
 	$(jpegtran_SOURCES) $(rdjpgcom_SOURCES) $(wrjpgcom_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
 man1dir = $(mandir)/man1
 NROFF = nroff
 MANS = $(man_MANS)
 HEADERS = $(include_HEADERS) $(noinst_HEADERS)
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) \
+	$(LISP)jconfig.cfg
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
 ETAGS = etags
 CTAGS = ctags
+CSCOPE = cscope
+AM_RECURSIVE_TARGETS = cscope
 ACLOCAL = @ACLOCAL@
 AMTAR = @AMTAR@
 AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
@@ -205,6 +286,7 @@ LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
 MEMORYMGR = @MEMORYMGR@
 MKDIR_P = @MKDIR_P@
 NM = @NM@
@@ -218,6 +300,7 @@ PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
 PACKAGE_NAME = @PACKAGE_NAME@
 PACKAGE_STRING = @PACKAGE_STRING@
 PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 RANLIB = @RANLIB@
@@ -225,12 +308,12 @@ SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
-U = @U@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
 abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
 ac_ct_CC = @ac_ct_CC@
 ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
 am__include = @am__include@
@@ -263,7 +346,6 @@ libdir = @libdir@
 libexecdir = @libexecdir@
 localedir = @localedir@
 localstatedir = @localstatedir@
-lt_ECHO = @lt_ECHO@
 mandir = @mandir@
 mkdir_p = @mkdir_p@
 oldincludedir = @oldincludedir@
@@ -320,11 +402,12 @@ MKFILES = configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 
 
 # Configuration files
@@ -334,12 +417,12 @@ CONFIGFILES = jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
 
 
 # Support scripts for configure
-CONFIGUREFILES = config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES = config.guess config.sub install-sh ltmain.sh depcomp \
+        missing ar-lib
+
 
 # Miscellaneous support files
-OTHERFILES = jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+OTHERFILES = jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
-        libjpeg.map
-
 
 # Test support files
 TESTFILES = testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
@@ -393,7 +476,7 @@ all: jconfig.h
 
 .SUFFIXES:
 .SUFFIXES: .c .lo .o .obj
-am--refresh:
+am--refresh: Makefile
 	@:
 $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
@@ -429,10 +512,8 @@ $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 $(am__aclocal_m4_deps):
 
 jconfig.h: stamp-h1
-	@if test ! -f $@; then \
+	@test -f $@ || rm -f stamp-h1
-	  rm -f stamp-h1; \
+	@test -f $@ || $(MAKE) $(AM_MAKEFLAGS) stamp-h1
-	  $(MAKE) $(AM_MAKEFLAGS) stamp-h1; \
-	else :; fi
 
 stamp-h1: $(srcdir)/jconfig.cfg $(top_builddir)/config.status
 	@rm -f stamp-h1
@@ -444,9 +525,9 @@ $(srcdir)/jconfig.cfg: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 
 distclean-hdr:
 	-rm -f jconfig.h stamp-h1
+
 install-libLTLIBRARIES: $(lib_LTLIBRARIES)
 	@$(NORMAL_INSTALL)
-	test -z "$(libdir)" || $(MKDIR_P) "$(DESTDIR)$(libdir)"
 	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
 	list2=; for p in $$list; do \
 	  if test -f $$p; then \
@@ -454,6 +535,8 @@ install-libLTLIBRARIES: $(lib_LTLIBRARIES)
 	  else :; fi; \
 	done; \
 	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1; \
 	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(libdir)'"; \
 	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \
 	}
@@ -469,24 +552,32 @@ uninstall-libLTLIBRARIES:
 
 clean-libLTLIBRARIES:
 	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
-	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	@list='$(lib_LTLIBRARIES)'; \
-	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	locs=`for p in $$list; do echo $$p; done | \
-	  test "$$dir" != "$$p" || dir=.; \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
-	  echo "rm -f \"$${dir}/so_locations\""; \
+	      sort -u`; \
-	  rm -f "$${dir}/so_locations"; \
+	test -z "$$locs" || { \
-	done
+	  echo rm -f $${locs}; \
-libjpeg.la: $(libjpeg_la_OBJECTS) $(libjpeg_la_DEPENDENCIES) 
+	  rm -f $${locs}; \
+	}
+
+libjpeg.la: $(libjpeg_la_OBJECTS) $(libjpeg_la_DEPENDENCIES) $(EXTRA_libjpeg_la_DEPENDENCIES) 
 	$(AM_V_CCLD)$(libjpeg_la_LINK) -rpath $(libdir) $(libjpeg_la_OBJECTS) $(libjpeg_la_LIBADD) $(LIBS)
 install-binPROGRAMS: $(bin_PROGRAMS)
 	@$(NORMAL_INSTALL)
-	test -z "$(bindir)" || $(MKDIR_P) "$(DESTDIR)$(bindir)"
 	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
 	for p in $$list; do echo "$$p $$p"; done | \
 	sed 's/$(EXEEXT)$$//' | \
-	while read p p1; do if test -f $$p || test -f $$p1; \
+	while read p p1; do if test -f $$p \
-	  then echo "$$p"; echo "$$p"; else :; fi; \
+	 || test -f $$p1 \
+	  ; then echo "$$p"; echo "$$p"; else :; fi; \
 	done | \
-	sed -e 'p;s,.*/,,;n;h' -e 's|.*|.|' \
+	sed -e 'p;s,.*/,,;n;h' \
+	    -e 's|.*|.|' \
 	    -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
 	sed 'N;N;N;s,\n, ,g' | \
 	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
@@ -507,7 +598,8 @@ uninstall-binPROGRAMS:
 	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
 	files=`for p in $$list; do echo "$$p"; done | \
 	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
-	      -e 's/$$/$(EXEEXT)/' `; \
+	      -e 's/$$/$(EXEEXT)/' \
+	`; \
 	test -n "$$list" || exit 0; \
 	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
 	cd "$(DESTDIR)$(bindir)" && rm -f $$files
@@ -520,19 +612,24 @@ clean-binPROGRAMS:
 	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
 	echo " rm -f" $$list; \
 	rm -f $$list
-cjpeg$(EXEEXT): $(cjpeg_OBJECTS) $(cjpeg_DEPENDENCIES) 
+
+cjpeg$(EXEEXT): $(cjpeg_OBJECTS) $(cjpeg_DEPENDENCIES) $(EXTRA_cjpeg_DEPENDENCIES) 
 	@rm -f cjpeg$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(cjpeg_OBJECTS) $(cjpeg_LDADD) $(LIBS)
-djpeg$(EXEEXT): $(djpeg_OBJECTS) $(djpeg_DEPENDENCIES) 
+
+djpeg$(EXEEXT): $(djpeg_OBJECTS) $(djpeg_DEPENDENCIES) $(EXTRA_djpeg_DEPENDENCIES) 
 	@rm -f djpeg$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(djpeg_OBJECTS) $(djpeg_LDADD) $(LIBS)
-jpegtran$(EXEEXT): $(jpegtran_OBJECTS) $(jpegtran_DEPENDENCIES) 
+
+jpegtran$(EXEEXT): $(jpegtran_OBJECTS) $(jpegtran_DEPENDENCIES) $(EXTRA_jpegtran_DEPENDENCIES) 
 	@rm -f jpegtran$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(jpegtran_OBJECTS) $(jpegtran_LDADD) $(LIBS)
-rdjpgcom$(EXEEXT): $(rdjpgcom_OBJECTS) $(rdjpgcom_DEPENDENCIES) 
+
+rdjpgcom$(EXEEXT): $(rdjpgcom_OBJECTS) $(rdjpgcom_DEPENDENCIES) $(EXTRA_rdjpgcom_DEPENDENCIES) 
 	@rm -f rdjpgcom$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(rdjpgcom_OBJECTS) $(rdjpgcom_LDADD) $(LIBS)
-wrjpgcom$(EXEEXT): $(wrjpgcom_OBJECTS) $(wrjpgcom_DEPENDENCIES) 
+
+wrjpgcom$(EXEEXT): $(wrjpgcom_OBJECTS) $(wrjpgcom_DEPENDENCIES) $(EXTRA_wrjpgcom_DEPENDENCIES) 
 	@rm -f wrjpgcom$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(wrjpgcom_OBJECTS) $(wrjpgcom_LDADD) $(LIBS)
 
@@ -541,268 +638,93 @@ mostlyclean-compile:
 
 distclean-compile:
 	-rm -f *.tab.c
-./ansi2knr: ansi2knr.$(OBJEXT)
-	$(LINK) ansi2knr.$(OBJEXT) $(LIBS)
-ansi2knr.$(OBJEXT): $(CONFIG_HEADER)
 
-clean-krextra:
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/@MEMORYMGR@.Plo@am__quote@
-	-rm -f ansi2knr
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cdjpeg.Po@am__quote@
-
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cjpeg.Po@am__quote@
-mostlyclean-kr:
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/djpeg.Po@am__quote@
-	-test "$U" = "" || rm -f *_.c
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jaricom.Plo@am__quote@
-
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcapimin.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/@MEMORYMGR@$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcapistd.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cdjpeg$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcarith.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cjpeg$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jccoefct.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/djpeg$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jccolor.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jaricom$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcdctmgr.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcapimin$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jchuff.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcapistd$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcinit.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcarith$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcmainct.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jccoefct$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcmarker.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jccolor$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcmaster.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcdctmgr$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcomapi.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jchuff$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcparam.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcinit$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcprepct.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcmainct$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcsample.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcmarker$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jctrans.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcmaster$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdapimin.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcomapi$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdapistd.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcparam$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdarith.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcprepct$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdatadst.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jcsample$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdatasrc.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jctrans$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdcoefct.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdapimin$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdcolor.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdapistd$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jddctmgr.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdarith$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdhuff.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdatadst$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdinput.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdatasrc$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmainct.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdcoefct$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmarker.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdcolor$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmaster.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jddctmgr$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmerge.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdhuff$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdpostct.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdinput$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdsample.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmainct$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdtrans.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmarker$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jerror.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmaster$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jfdctflt.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdmerge$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jfdctfst.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdpostct$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jfdctint.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdsample$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jidctflt.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jdtrans$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jidctfst.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jerror$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jidctint.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jfdctflt$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jmemmgr.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jfdctfst$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jpegtran.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jfdctint$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jquant1.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jidctflt$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jquant2.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jidctfst$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jutils.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jidctint$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdbmp.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jmemmgr$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdcolmap.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jpegtran$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdgif.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jquant1$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdjpgcom.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jquant2$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdppm.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jutils$U.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdrle.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdbmp$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdswitch.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdcolmap$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdtarga.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdgif$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/transupp.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdjpgcom$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrbmp.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdppm$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrgif.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdrle$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrjpgcom.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdswitch$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrppm.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdtarga$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrrle.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/transupp$U.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrtarga.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrbmp$U.Po@am__quote@
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-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wrtarga$U.Po@am__quote@
 
 .c.o:
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
-@am__fastdepCC_FALSE@	$(AM_V_CC) @AM_BACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(COMPILE) -c $<
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
 
 .c.obj:
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
-@am__fastdepCC_FALSE@	$(AM_V_CC) @AM_BACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(COMPILE) -c `$(CYGPATH_W) '$<'`
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
 
 .c.lo:
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
-@am__fastdepCC_FALSE@	$(AM_V_CC) @AM_BACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
-@MEMORYMGR@_.c: @MEMORYMGR@.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/@MEMORYMGR@.c; then echo $(srcdir)/@MEMORYMGR@.c; else echo @MEMORYMGR@.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-cdjpeg_.c: cdjpeg.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/cdjpeg.c; then echo $(srcdir)/cdjpeg.c; else echo cdjpeg.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-cjpeg_.c: cjpeg.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/cjpeg.c; then echo $(srcdir)/cjpeg.c; else echo cjpeg.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-djpeg_.c: djpeg.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/djpeg.c; then echo $(srcdir)/djpeg.c; else echo djpeg.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-jaricom_.c: jaricom.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/jaricom.c; then echo $(srcdir)/jaricom.c; else echo jaricom.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-jcapimin_.c: jcapimin.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/jcapimin.c; then echo $(srcdir)/jcapimin.c; else echo jcapimin.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-jcapistd_.c: jcapistd.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/jcapistd.c; then echo $(srcdir)/jcapistd.c; else echo jcapistd.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-jcarith_.c: jcarith.c $(ANSI2KNR)
-	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/jcarith.c; then echo $(srcdir)/jcarith.c; else echo jcarith.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
-jccoefct_.c: jccoefct.c $(ANSI2KNR)
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-rdgif_.$(OBJEXT) rdgif_.lo rdjpgcom_.$(OBJEXT) rdjpgcom_.lo \
-rdppm_.$(OBJEXT) rdppm_.lo rdrle_.$(OBJEXT) rdrle_.lo \
-rdswitch_.$(OBJEXT) rdswitch_.lo rdtarga_.$(OBJEXT) rdtarga_.lo \
-transupp_.$(OBJEXT) transupp_.lo wrbmp_.$(OBJEXT) wrbmp_.lo \
-wrgif_.$(OBJEXT) wrgif_.lo wrjpgcom_.$(OBJEXT) wrjpgcom_.lo \
-wrppm_.$(OBJEXT) wrppm_.lo wrrle_.$(OBJEXT) wrrle_.lo \
-wrtarga_.$(OBJEXT) wrtarga_.lo : $(ANSI2KNR)
 
 mostlyclean-libtool:
 	-rm -f *.lo
@@ -814,11 +736,18 @@ distclean-libtool:
 	-rm -f libtool config.lt
 install-man1: $(man_MANS)
 	@$(NORMAL_INSTALL)
-	test -z "$(man1dir)" || $(MKDIR_P) "$(DESTDIR)$(man1dir)"
+	@list1=''; \
-	@list=''; test -n "$(man1dir)" || exit 0; \
+	list2='$(man_MANS)'; \
-	{ for i in $$list; do echo "$$i"; done; \
+	test -n "$(man1dir)" \
-	l2='$(man_MANS)'; for i in $$l2; do echo "$$i"; done | \
+	  && test -n "`echo $$list1$$list2`" \
-	  sed -n '/\.1[a-z]*$$/p'; \
+	  || exit 0; \
+	echo " $(MKDIR_P) '$(DESTDIR)$(man1dir)'"; \
+	$(MKDIR_P) "$(DESTDIR)$(man1dir)" || exit 1; \
+	{ for i in $$list1; do echo "$$i"; done;  \
+	if test -n "$$list2"; then \
+	  for i in $$list2; do echo "$$i"; done \
+	    | sed -n '/\.1[a-z]*$$/p'; \
+	fi; \
 	} | while read p; do \
 	  if test -f $$p; then d=; else d="$(srcdir)/"; fi; \
 	  echo "$$d$$p"; echo "$$p"; \
@@ -847,13 +776,14 @@ uninstall-man1:
 	  sed -n '/\.1[a-z]*$$/p'; \
 	} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^1][0-9a-z]*$$,1,;x' \
 	      -e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,'`; \
-	test -z "$$files" || { \
+	dir='$(DESTDIR)$(man1dir)'; $(am__uninstall_files_from_dir)
-	  echo " ( cd '$(DESTDIR)$(man1dir)' && rm -f" $$files ")"; \
-	  cd "$(DESTDIR)$(man1dir)" && rm -f $$files; }
 install-includeHEADERS: $(include_HEADERS)
 	@$(NORMAL_INSTALL)
-	test -z "$(includedir)" || $(MKDIR_P) "$(DESTDIR)$(includedir)"
 	@list='$(include_HEADERS)'; test -n "$(includedir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(includedir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(includedir)" || exit 1; \
+	fi; \
 	for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
 	  echo "$$d$$p"; \
@@ -867,30 +797,17 @@ uninstall-includeHEADERS:
 	@$(NORMAL_UNINSTALL)
 	@list='$(include_HEADERS)'; test -n "$(includedir)" || list=; \
 	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
-	test -n "$$files" || exit 0; \
+	dir='$(DESTDIR)$(includedir)'; $(am__uninstall_files_from_dir)
-	echo " ( cd '$(DESTDIR)$(includedir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(includedir)" && rm -f $$files
 
-ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+ID: $(am__tagged_files)
-	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
-	unique=`for i in $$list; do \
+tags: tags-am
-	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+TAGS: tags
-	  done | \
-	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
-	      END { if (nonempty) { for (i in files) print i; }; }'`; \
-	mkid -fID $$unique
-tags: TAGS
 
-TAGS:  $(HEADERS) $(SOURCES) jconfig.cfg $(TAGS_DEPENDENCIES) \
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
-		$(TAGS_FILES) $(LISP)
 	set x; \
 	here=`pwd`; \
-	list='$(SOURCES) $(HEADERS) jconfig.cfg $(LISP) $(TAGS_FILES)'; \
+	$(am__define_uniq_tagged_files); \
-	unique=`for i in $$list; do \
-	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
-	  done | \
-	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
-	      END { if (nonempty) { for (i in files) print i; }; }'`; \
 	shift; \
 	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
 	  test -n "$$unique" || unique=$$empty_fix; \
@@ -902,15 +819,11 @@ TAGS:  $(HEADERS) $(SOURCES) jconfig.cfg $(TAGS_DEPENDENCIES) \
 	      $$unique; \
 	  fi; \
 	fi
-ctags: CTAGS
+ctags: ctags-am
-CTAGS:  $(HEADERS) $(SOURCES) jconfig.cfg $(TAGS_DEPENDENCIES) \
+
-		$(TAGS_FILES) $(LISP)
+CTAGS: ctags
-	list='$(SOURCES) $(HEADERS) jconfig.cfg $(LISP) $(TAGS_FILES)'; \
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
-	unique=`for i in $$list; do \
+	$(am__define_uniq_tagged_files); \
-	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
-	  done | \
-	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
-	      END { if (nonempty) { for (i in files) print i; }; }'`; \
 	test -z "$(CTAGS_ARGS)$$unique" \
 	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
 	     $$unique
@@ -919,14 +832,36 @@ GTAGS:
 	here=`$(am__cd) $(top_builddir) && pwd` \
 	  && $(am__cd) $(top_srcdir) \
 	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscope: cscope.files
+	test ! -s cscope.files \
+	  || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i cscope.files $(CSCOPE_ARGS)
+clean-cscope:
+	-rm -f cscope.files
+cscope.files: clean-cscope cscopelist
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
 
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
 check-am: all-am
 	$(MAKE) $(AM_MAKEFLAGS) check-local
 check: check-am
-all-am: Makefile $(ANSI2KNR) $(LTLIBRARIES) $(PROGRAMS) $(MANS) \
+all-am: Makefile $(LTLIBRARIES) $(PROGRAMS) $(MANS) $(HEADERS) \
-		$(HEADERS) jconfig.h
+		jconfig.h
 install-binPROGRAMS: install-libLTLIBRARIES
 
 installdirs:
@@ -943,10 +878,15 @@ install-am: all-am
 
 installcheck: installcheck-am
 install-strip:
+	if test -z '$(STRIP)'; then \
 	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
 	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	  `test -z '$(STRIP)' || \
+	      install; \
-	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
 mostlyclean-generic:
 
 clean-generic:
@@ -961,8 +901,8 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-binPROGRAMS clean-generic clean-krextra \
+clean-am: clean-binPROGRAMS clean-generic clean-libLTLIBRARIES \
-	clean-libLTLIBRARIES clean-libtool mostlyclean-am
+	clean-libtool mostlyclean-am
 
 distclean: distclean-am
 	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
@@ -1020,7 +960,7 @@ maintainer-clean-am: distclean-am maintainer-clean-generic
 
 mostlyclean: mostlyclean-am
 
-mostlyclean-am: mostlyclean-compile mostlyclean-generic mostlyclean-kr \
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
 	mostlyclean-libtool
 
 pdf: pdf-am
@@ -1038,22 +978,22 @@ uninstall-man: uninstall-man1
 
 .MAKE: all check-am install-am install-strip
 
-.PHONY: CTAGS GTAGS all all-am am--refresh check check-am check-local \
+.PHONY: CTAGS GTAGS TAGS all all-am am--refresh check check-am \
-	clean clean-binPROGRAMS clean-generic clean-krextra \
+	check-local clean clean-binPROGRAMS clean-cscope clean-generic \
-	clean-libLTLIBRARIES clean-libtool ctags distclean \
+	clean-libLTLIBRARIES clean-libtool cscope cscopelist-am ctags \
-	distclean-compile distclean-generic distclean-hdr \
+	ctags-am distclean distclean-compile distclean-generic \
-	distclean-libtool distclean-tags dvi dvi-am html html-am info \
+	distclean-hdr distclean-libtool distclean-tags dvi dvi-am html \
-	info-am install install-am install-binPROGRAMS install-data \
+	html-am info info-am install install-am install-binPROGRAMS \
-	install-data-am install-data-local install-dvi install-dvi-am \
+	install-data install-data-am install-data-local install-dvi \
-	install-exec install-exec-am install-html install-html-am \
+	install-dvi-am install-exec install-exec-am install-html \
-	install-includeHEADERS install-info install-info-am \
+	install-html-am install-includeHEADERS install-info \
-	install-libLTLIBRARIES install-man install-man1 install-pdf \
+	install-info-am install-libLTLIBRARIES install-man \
-	install-pdf-am install-ps install-ps-am install-strip \
+	install-man1 install-pdf install-pdf-am install-ps \
-	installcheck installcheck-am installdirs maintainer-clean \
+	install-ps-am install-strip installcheck installcheck-am \
-	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	installdirs maintainer-clean maintainer-clean-generic \
-	mostlyclean-generic mostlyclean-kr mostlyclean-libtool pdf \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
-	pdf-am ps ps-am tags uninstall uninstall-am \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
-	uninstall-binPROGRAMS uninstall-includeHEADERS \
+	uninstall-am uninstall-binPROGRAMS uninstall-includeHEADERS \
 	uninstall-libLTLIBRARIES uninstall-local uninstall-man \
 	uninstall-man1
 
@@ -1070,7 +1010,7 @@ uninstall-local:
 # Run tests
 test: check-local
 check-local:
-	$(RM) testout*
+	rm -f testout*
 	./djpeg -dct int -ppm -outfile testout.ppm  $(srcdir)/testorig.jpg
 	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  $(srcdir)/testorig.jpg
 	./cjpeg -dct int -outfile testout.jpg  $(srcdir)/testimg.ppm

README

@@ -1,10 +1,10 @@
 The Independent JPEG Group's JPEG software
 ==========================================
 
-README for release 7 of 27-Jun-2009
+README for release 9a of 19-Jan-2014
-===================================
+====================================
 
-This distribution contains the seventh public release of the Independent JPEG
+This distribution contains the ninth public release of the Independent JPEG
 Group's free JPEG software.  You are welcome to redistribute this software and
 to use it for any purpose, subject to the conditions under LEGAL ISSUES, below.
 
@@ -13,7 +13,8 @@ Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson,
 Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers,
 and other members of the Independent JPEG Group.
 
-IJG is not affiliated with the official ISO JPEG standards committee.
+IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee
+(previously known as JPEG, together with ITU-T SG16).
 
 
 DOCUMENTATION ROADMAP
@@ -114,7 +115,7 @@ with respect to this software, its quality, accuracy, merchantability, or
 fitness for a particular purpose.  This software is provided "AS IS", and you,
 its user, assume the entire risk as to its quality and accuracy.
 
-This software is copyright (C) 1991-2009, Thomas G. Lane, Guido Vollbeding.
+This software is copyright (C) 1991-2014, Thomas G. Lane, Guido Vollbeding.
 All Rights Reserved except as specified below.
 
 Permission is hereby granted to use, copy, modify, and distribute this
@@ -145,15 +146,6 @@ commercial products, provided that all warranty or liability claims are
 assumed by the product vendor.
 
 
-ansi2knr.c is included in this distribution by permission of L. Peter Deutsch,
-sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA.
-ansi2knr.c is NOT covered by the above copyright and conditions, but instead
-by the usual distribution terms of the Free Software Foundation; principally,
-that you must include source code if you redistribute it.  (See the file
-ansi2knr.c for full details.)  However, since ansi2knr.c is not needed as part
-of any program generated from the IJG code, this does not limit you more than
-the foregoing paragraphs do.
-
 The Unix configuration script "configure" was produced with GNU Autoconf.
 It is copyright by the Free Software Foundation but is freely distributable.
 The same holds for its supporting scripts (config.guess, config.sub,
@@ -161,11 +153,11 @@ ltmain.sh).  Another support script, install-sh, is copyright by X Consortium
 but is also freely distributable.
 
 The IJG distribution formerly included code to read and write GIF files.
-To avoid entanglement with the Unisys LZW patent, GIF reading support has
+To avoid entanglement with the Unisys LZW patent (now expired), GIF reading
-been removed altogether, and the GIF writer has been simplified to produce
+support has been removed altogether, and the GIF writer has been simplified
-"uncompressed GIFs".  This technique does not use the LZW algorithm; the
+to produce "uncompressed GIFs".  This technique does not use the LZW
-resulting GIF files are larger than usual, but are readable by all standard
+algorithm; the resulting GIF files are larger than usual, but are readable
-GIF decoders.
+by all standard GIF decoders.
 
 We are required to state that
     "The Graphics Interchange Format(c) is the Copyright property of
@@ -221,16 +213,24 @@ Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS
 10918-1, ITU-T T.81.  Part 2 is titled "Digital Compression and Coding of
 Continuous-tone Still Images, Part 2: Compliance testing" and has document
 numbers ISO/IEC IS 10918-2, ITU-T T.83.
+IJG JPEG 8 introduced an implementation of the JPEG SmartScale extension
+which is specified in two documents:  A contributed document at ITU and ISO
+with title "ITU-T JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced
+Image Coding", April 2006, Geneva, Switzerland.  The latest version of this
+document is Revision 3.  And a contributed document ISO/IEC JTC1/SC29/WG1 N
+5799 with title "Evolution of JPEG", June/July 2011, Berlin, Germany.
+IJG JPEG 9 introduces a reversible color transform for improved lossless
+compression which is described in a contributed document ISO/IEC JTC1/SC29/
+WG1 N 6080 with title "JPEG 9 Lossless Coding", June/July 2012, Paris,
+France.
 
 The JPEG standard does not specify all details of an interchangeable file
 format.  For the omitted details we follow the "JFIF" conventions, revision
-1.02.  A copy of the JFIF spec is available from:
+1.02.  JFIF 1.02 has been adopted as an Ecma International Technical Report
-	Literature Department
+and thus received a formal publication status.  It is available as a free
-	C-Cube Microsystems, Inc.
+download in PDF format from
-	1778 McCarthy Blvd.
+http://www.ecma-international.org/publications/techreports/E-TR-098.htm.
-	Milpitas, CA 95035
+A PostScript version of the JFIF document is available at
-	phone (408) 944-6300,  fax (408) 944-6314
-A PostScript version of this document is available at
 http://www.ijg.org/files/jfif.ps.gz.  There is also a plain text version at
 http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures.
 
@@ -252,8 +252,8 @@ ARCHIVE LOCATIONS
 The "official" archive site for this software is www.ijg.org.
 The most recent released version can always be found there in
 directory "files".  This particular version will be archived as
-http://www.ijg.org/files/jpegsrc.v7.tar.gz, and in Windows-compatible
+http://www.ijg.org/files/jpegsrc.v9a.tar.gz, and in Windows-compatible
-"zip" archive format as http://www.ijg.org/files/jpegsr7.zip.
+"zip" archive format as http://www.ijg.org/files/jpegsr9a.zip.
 
 The JPEG FAQ (Frequently Asked Questions) article is a source of some
 general information about JPEG.
@@ -269,9 +269,8 @@ with body
 ACKNOWLEDGMENTS
 ===============
 
-Thank to Juergen Bruder of the Georg-Cantor-Organization at the
+Thank to Juergen Bruder for providing me with a copy of the common DCT
-Martin-Luther-University Halle for providing me with a copy of the common
+algorithm article, only to find out that I had come to the same result
-DCT algorithm article, only to find out that I had come to the same result
 in a more direct and comprehensible way with a more generative approach.
 
 Thank to Istvan Sebestyen and Joan L. Mitchell for inviting me to the
@@ -280,11 +279,16 @@ ITU JPEG (Study Group 16) meeting in Geneva, Switzerland.
 Thank to Thomas Wiegand and Gary Sullivan for inviting me to the
 Joint Video Team (MPEG & ITU) meeting in Geneva, Switzerland.
 
+Thank to Thomas Richter and Daniel Lee for inviting me to the
+ISO/IEC JTC1/SC29/WG1 (previously known as JPEG, together with ITU-T SG16)
+meeting in Berlin, Germany.
+
 Thank to John Korejwa and Massimo Ballerini for inviting me to
 fruitful consultations in Boston, MA and Milan, Italy.
 
-Thank to Hendrik Elstner, Roland Fassauer, and Simone Zuck for
+Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther
-corresponding business development.
+Maier-Gerber, Walter Stoeber, Fred Schmitz, and Norbert Braunagel
+for corresponding business development.
 
 Thank to Nico Zschach and Dirk Stelling of the technical support team
 at the Digital Images company in Halle for providing me with extra
@@ -293,6 +297,8 @@ equipment for configuration tests.
 Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful
 communication about JPEG configuration in Sigma Photo Pro software.
 
+Thank to Andrew Finkenstadt for hosting the ijg.org site.
+
 Last but not least special thank to Thomas G. Lane for the original
 design and development of this singular software package.
 
@@ -300,23 +306,76 @@ design and development of this singular software package.
 FILE FORMAT WARS
 ================
 
-The ISO JPEG standards committee actually promotes different formats like
+The ISO/IEC JTC1/SC29/WG1 standards committee (previously known as JPEG,
-JPEG-2000 or JPEG-XR which are incompatible with original DCT-based JPEG
+together with ITU-T SG16) currently promotes different formats containing
-and which are based on faulty technologies.  IJG therefore does not and
+the name "JPEG" which is misleading because these formats are incompatible
-will not support such momentary mistakes (see REFERENCES).
+with original DCT-based JPEG and are based on faulty technologies.
-We have little or no sympathy for the promotion of these formats.  Indeed,
+IJG therefore does not and will not support such momentary mistakes
-one of the original reasons for developing this free software was to help
+(see REFERENCES).
-force convergence on common, interoperable format standards for JPEG files.
+There exist also distributions under the name "OpenJPEG" promoting such
+kind of formats which is misleading because they don't support original
+JPEG images.
+We have no sympathy for the promotion of inferior formats.  Indeed, one of
+the original reasons for developing this free software was to help force
+convergence on common, interoperable format standards for JPEG files.
 Don't use an incompatible file format!
 (In any case, our decoder will remain capable of reading existing JPEG
 image files indefinitely.)
 
+The ISO committee pretends to be "responsible for the popular JPEG" in their
+public reports which is not true because they don't respond to actual
+requirements for the maintenance of the original JPEG specification.
+Furthermore, the ISO committee pretends to "ensure interoperability" with
+their standards which is not true because their "standards" support only
+application-specific and proprietary use cases and contain mathematically
+incorrect code.
+
+There are currently different distributions in circulation containing the
+name "libjpeg" which is misleading because they don't have the features and
+are incompatible with formats supported by actual IJG libjpeg distributions.
+One of those fakes is released by members of the ISO committee and just uses
+the name of libjpeg for misdirection of people, similar to the abuse of the
+name JPEG as described above, while having nothing in common with actual IJG
+libjpeg distributions and containing mathematically incorrect code.
+The other one claims to be a "derivative" or "fork" of the original libjpeg,
+but violates the license conditions as described under LEGAL ISSUES above
+and violates basic C programming properties.
+We have no sympathy for the release of misleading, incorrect and illegal
+distributions derived from obsolete code bases.
+Don't use an obsolete code base!
+
+According to the UCC (Uniform Commercial Code) law, IJG has the lawful and
+legal right to foreclose on certain standardization bodies and other
+institutions or corporations that knowingly perform substantial and
+systematic deceptive acts and practices, fraud, theft, and damaging of the
+value of the people of this planet without their knowing, willing and
+intentional consent.
+The titles, ownership, and rights of these institutions and all their assets
+are now duly secured and held in trust for the free people of this planet.
+People of the planet, on every country, may have a financial interest in
+the assets of these former principals, agents, and beneficiaries of the
+foreclosed institutions and corporations.
+IJG asserts what is: that each man, woman, and child has unalienable value
+and rights granted and deposited in them by the Creator and not any one of
+the people is subordinate to any artificial principality, corporate fiction
+or the special interest of another without their appropriate knowing,
+willing and intentional consent made by contract or accommodation agreement.
+IJG expresses that which already was.
+The people have already determined and demanded that public administration
+entities, national governments, and their supporting judicial systems must
+be fully transparent, accountable, and liable.
+IJG has secured the value for all concerned free people of the planet.
+
+A partial list of foreclosed institutions and corporations ("Hall of Shame")
+is currently prepared and will be published later.
+
 
 TO DO
 =====
 
-v7 is basically just a necessary interim release, paving the way for a
+Version 9 is the second release of a new generation JPEG standard
-major breakthrough in image coding technology with the next v8 package
+to overcome the limitations of the original JPEG specification,
-which is scheduled for release in the year 2010.
+and is the first true source reference JPEG codec.
+More features are being prepared for coming releases...
 
 Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org.

ansi2knr.1

@@ -1,36 +0,0 @@
-.TH ANSI2KNR 1 "19 Jan 1996"
-.SH NAME
-ansi2knr \- convert ANSI C to Kernighan & Ritchie C
-.SH SYNOPSIS
-.I ansi2knr
-[--varargs] input_file [output_file]
-.SH DESCRIPTION
-If no output_file is supplied, output goes to stdout.
-.br
-There are no error messages.
-.sp
-.I ansi2knr
-recognizes function definitions by seeing a non-keyword identifier at the left
-margin, followed by a left parenthesis, with a right parenthesis as the last
-character on the line, and with a left brace as the first token on the
-following line (ignoring possible intervening comments).  It will recognize a
-multi-line header provided that no intervening line ends with a left or right
-brace or a semicolon.  These algorithms ignore whitespace and comments, except
-that the function name must be the first thing on the line.
-.sp
-The following constructs will confuse it:
-.br
-     - Any other construct that starts at the left margin and follows the
-above syntax (such as a macro or function call).
-.br
-     - Some macros that tinker with the syntax of the function header.
-.sp
-The --varargs switch is obsolete, and is recognized only for
-backwards compatibility.  The present version of
-.I ansi2knr
-will always attempt to convert a ... argument to va_alist and va_dcl.
-.SH AUTHOR
-L. Peter Deutsch <ghost@aladdin.com> wrote the original ansi2knr and
-continues to maintain the current version; most of the code in the current
-version is his work.  ansi2knr also includes contributions by Francois
-Pinard <pinard@iro.umontreal.ca> and Jim Avera <jima@netcom.com>.

ansi2knr.c

@@ -1,739 +0,0 @@
-/* Copyright (C) 1989, 2000 Aladdin Enterprises.  All rights reserved. */
-
-/*$Id: ansi2knr.c,v 1.14 2003/09/06 05:36:56 eggert Exp $*/
-/* Convert ANSI C function definitions to K&R ("traditional C") syntax */
-
-/*
-ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY.  No author or distributor accepts responsibility to anyone for the
-consequences of using it or for whether it serves any particular purpose or
-works at all, unless he says so in writing.  Refer to the GNU General Public
-License (the "GPL") for full details.
-
-Everyone is granted permission to copy, modify and redistribute ansi2knr,
-but only under the conditions described in the GPL.  A copy of this license
-is supposed to have been given to you along with ansi2knr so you can know
-your rights and responsibilities.  It should be in a file named COPYLEFT,
-or, if there is no file named COPYLEFT, a file named COPYING.  Among other
-things, the copyright notice and this notice must be preserved on all
-copies.
-
-We explicitly state here what we believe is already implied by the GPL: if
-the ansi2knr program is distributed as a separate set of sources and a
-separate executable file which are aggregated on a storage medium together
-with another program, this in itself does not bring the other program under
-the GPL, nor does the mere fact that such a program or the procedures for
-constructing it invoke the ansi2knr executable bring any other part of the
-program under the GPL.
-*/
-
-/*
- * Usage:
-	ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]]
- * --filename provides the file name for the #line directive in the output,
- * overriding input_file (if present).
- * If no input_file is supplied, input is read from stdin.
- * If no output_file is supplied, output goes to stdout.
- * There are no error messages.
- *
- * ansi2knr recognizes function definitions by seeing a non-keyword
- * identifier at the left margin, followed by a left parenthesis, with a
- * right parenthesis as the last character on the line, and with a left
- * brace as the first token on the following line (ignoring possible
- * intervening comments and/or preprocessor directives), except that a line
- * consisting of only
- *	identifier1(identifier2)
- * will not be considered a function definition unless identifier2 is
- * the word "void", and a line consisting of
- *	identifier1(identifier2, <<arbitrary>>)
- * will not be considered a function definition.
- * ansi2knr will recognize a multi-line header provided that no intervening
- * line ends with a left or right brace or a semicolon.  These algorithms
- * ignore whitespace, comments, and preprocessor directives, except that
- * the function name must be the first thing on the line.  The following
- * constructs will confuse it:
- *	- Any other construct that starts at the left margin and
- *	    follows the above syntax (such as a macro or function call).
- *	- Some macros that tinker with the syntax of function headers.
- */
-
-/*
- * The original and principal author of ansi2knr is L. Peter Deutsch
- * <ghost@aladdin.com>.  Other authors are noted in the change history
- * that follows (in reverse chronological order):
-
-	lpd 2000-04-12 backs out Eggert's changes because of bugs:
-	- concatlits didn't declare the type of its bufend argument;
-	- concatlits didn't recognize when it was inside a comment;
-	- scanstring could scan backward past the beginning of the string; when
-	- the check for \ + newline in scanstring was unnecessary.
-
-	2000-03-05  Paul Eggert  <eggert@twinsun.com>
-
-	Add support for concatenated string literals.
-	* ansi2knr.c (concatlits): New decl.
-	(main): Invoke concatlits to concatenate string literals.
-	(scanstring): Handle backslash-newline correctly.  Work with
-	character constants.  Fix bug when scanning backwards through
-	backslash-quote.  Check for unterminated strings.
-	(convert1): Parse character constants, too.
-	(appendline, concatlits): New functions.
-	* ansi2knr.1: Document this.
-
-	lpd 1999-08-17 added code to allow preprocessor directives
-		wherever comments are allowed
-	lpd 1999-04-12 added minor fixes from Pavel Roskin
-		<pavel_roskin@geocities.com> for clean compilation with
-		gcc -W -Wall
-	lpd 1999-03-22 added hack to recognize lines consisting of
-		identifier1(identifier2, xxx) as *not* being procedures
-	lpd 1999-02-03 made indentation of preprocessor commands consistent
-	lpd 1999-01-28 fixed two bugs: a '/' in an argument list caused an
-		endless loop; quoted strings within an argument list
-		confused the parser
-	lpd 1999-01-24 added a check for write errors on the output,
-		suggested by Jim Meyering <meyering@ascend.com>
-	lpd 1998-11-09 added further hack to recognize identifier(void)
-		as being a procedure
-	lpd 1998-10-23 added hack to recognize lines consisting of
-		identifier1(identifier2) as *not* being procedures
-	lpd 1997-12-08 made input_file optional; only closes input and/or
-		output file if not stdin or stdout respectively; prints
-		usage message on stderr rather than stdout; adds
-		--filename switch (changes suggested by
-		<ceder@lysator.liu.se>)
-	lpd 1996-01-21 added code to cope with not HAVE_CONFIG_H and with
-		compilers that don't understand void, as suggested by
-		Tom Lane
-	lpd 1996-01-15 changed to require that the first non-comment token
-		on the line following a function header be a left brace,
-		to reduce sensitivity to macros, as suggested by Tom Lane
-		<tgl@sss.pgh.pa.us>
-	lpd 1995-06-22 removed #ifndefs whose sole purpose was to define
-		undefined preprocessor symbols as 0; changed all #ifdefs
-		for configuration symbols to #ifs
-	lpd 1995-04-05 changed copyright notice to make it clear that
-		including ansi2knr in a program does not bring the entire
-		program under the GPL
-	lpd 1994-12-18 added conditionals for systems where ctype macros
-		don't handle 8-bit characters properly, suggested by
-		Francois Pinard <pinard@iro.umontreal.ca>;
-		removed --varargs switch (this is now the default)
-	lpd 1994-10-10 removed CONFIG_BROKETS conditional
-	lpd 1994-07-16 added some conditionals to help GNU `configure',
-		suggested by Francois Pinard <pinard@iro.umontreal.ca>;
-		properly erase prototype args in function parameters,
-		contributed by Jim Avera <jima@netcom.com>;
-		correct error in writeblanks (it shouldn't erase EOLs)
-	lpd 1989-xx-xx original version
- */
-
-/* Most of the conditionals here are to make ansi2knr work with */
-/* or without the GNU configure machinery. */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <ctype.h>
-
-#if HAVE_CONFIG_H
-
-/*
-   For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h).
-   This will define HAVE_CONFIG_H and so, activate the following lines.
- */
-
-# if STDC_HEADERS || HAVE_STRING_H
-#  include <string.h>
-# else
-#  include <strings.h>
-# endif
-
-#else /* not HAVE_CONFIG_H */
-
-/* Otherwise do it the hard way */
-
-# ifdef BSD
-#  include <strings.h>
-# else
-#  ifdef VMS
-    extern int strlen(), strncmp();
-#  else
-#   include <string.h>
-#  endif
-# endif
-
-#endif /* not HAVE_CONFIG_H */
-
-#if STDC_HEADERS
-# include <stdlib.h>
-#else
-/*
-   malloc and free should be declared in stdlib.h,
-   but if you've got a K&R compiler, they probably aren't.
- */
-# ifdef MSDOS
-#  include <malloc.h>
-# else
-#  ifdef VMS
-     extern char *malloc();
-     extern void free();
-#  else
-     extern char *malloc();
-     extern int free();
-#  endif
-# endif
-
-#endif
-
-/* Define NULL (for *very* old compilers). */
-#ifndef NULL
-# define NULL (0)
-#endif
-
-/*
- * The ctype macros don't always handle 8-bit characters correctly.
- * Compensate for this here.
- */
-#ifdef isascii
-# undef HAVE_ISASCII		/* just in case */
-# define HAVE_ISASCII 1
-#else
-#endif
-#if STDC_HEADERS || !HAVE_ISASCII
-# define is_ascii(c) 1
-#else
-# define is_ascii(c) isascii(c)
-#endif
-
-#define is_space(c) (is_ascii(c) && isspace(c))
-#define is_alpha(c) (is_ascii(c) && isalpha(c))
-#define is_alnum(c) (is_ascii(c) && isalnum(c))
-
-/* Scanning macros */
-#define isidchar(ch) (is_alnum(ch) || (ch) == '_')
-#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_')
-
-/* Forward references */
-char *ppdirforward();
-char *ppdirbackward();
-char *skipspace();
-char *scanstring();
-int writeblanks();
-int test1();
-int convert1();
-
-/* The main program */
-int
-main(argc, argv)
-    int argc;
-    char *argv[];
-{	FILE *in = stdin;
-	FILE *out = stdout;
-	char *filename = 0;
-	char *program_name = argv[0];
-	char *output_name = 0;
-#define bufsize 5000			/* arbitrary size */
-	char *buf;
-	char *line;
-	char *more;
-	char *usage =
-	  "Usage: ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]]\n";
-	/*
-	 * In previous versions, ansi2knr recognized a --varargs switch.
-	 * If this switch was supplied, ansi2knr would attempt to convert
-	 * a ... argument to va_alist and va_dcl; if this switch was not
-	 * supplied, ansi2knr would simply drop any such arguments.
-	 * Now, ansi2knr always does this conversion, and we only
-	 * check for this switch for backward compatibility.
-	 */
-	int convert_varargs = 1;
-	int output_error;
-
-	while ( argc > 1 && argv[1][0] == '-' ) {
-	  if ( !strcmp(argv[1], "--varargs") ) {
-	    convert_varargs = 1;
-	    argc--;
-	    argv++;
-	    continue;
-	  }
-	  if ( !strcmp(argv[1], "--filename") && argc > 2 ) {
-	    filename = argv[2];
-	    argc -= 2;
-	    argv += 2;
-	    continue;
-	  }
-	  fprintf(stderr, "%s: Unrecognized switch: %s\n", program_name,
-		  argv[1]);
-	  fprintf(stderr, usage);
-	  exit(1);
-	}
-	switch ( argc )
-	   {
-	default:
-		fprintf(stderr, usage);
-		exit(0);
-	case 3:
-		output_name = argv[2];
-		out = fopen(output_name, "w");
-		if ( out == NULL ) {
-		  fprintf(stderr, "%s: Cannot open output file %s\n",
-			  program_name, output_name);
-		  exit(1);
-		}
-		/* falls through */
-	case 2:
-		in = fopen(argv[1], "r");
-		if ( in == NULL ) {
-		  fprintf(stderr, "%s: Cannot open input file %s\n",
-			  program_name, argv[1]);
-		  exit(1);
-		}
-		if ( filename == 0 )
-		  filename = argv[1];
-		/* falls through */
-	case 1:
-		break;
-	   }
-	if ( filename )
-	  fprintf(out, "#line 1 \"%s\"\n", filename);
-	buf = malloc(bufsize);
-	if ( buf == NULL )
-	   {
-		fprintf(stderr, "Unable to allocate read buffer!\n");
-		exit(1);
-	   }
-	line = buf;
-	while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL )
-	   {
-test:		line += strlen(line);
-		switch ( test1(buf) )
-		   {
-		case 2:			/* a function header */
-			convert1(buf, out, 1, convert_varargs);
-			break;
-		case 1:			/* a function */
-			/* Check for a { at the start of the next line. */
-			more = ++line;
-f:			if ( line >= buf + (bufsize - 1) ) /* overflow check */
-			  goto wl;
-			if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL )
-			  goto wl;
-			switch ( *skipspace(ppdirforward(more), 1) )
-			  {
-			  case '{':
-			    /* Definitely a function header. */
-			    convert1(buf, out, 0, convert_varargs);
-			    fputs(more, out);
-			    break;
-			  case 0:
-			    /* The next line was blank or a comment: */
-			    /* keep scanning for a non-comment. */
-			    line += strlen(line);
-			    goto f;
-			  default:
-			    /* buf isn't a function header, but */
-			    /* more might be. */
-			    fputs(buf, out);
-			    strcpy(buf, more);
-			    line = buf;
-			    goto test;
-			  }
-			break;
-		case -1:		/* maybe the start of a function */
-			if ( line != buf + (bufsize - 1) ) /* overflow check */
-			  continue;
-			/* falls through */
-		default:		/* not a function */
-wl:			fputs(buf, out);
-			break;
-		   }
-		line = buf;
-	   }
-	if ( line != buf )
-	  fputs(buf, out);
-	free(buf);
-	if ( output_name ) {
-	  output_error = ferror(out);
-	  output_error |= fclose(out);
-	} else {		/* out == stdout */
-	  fflush(out);
-	  output_error = ferror(out);
-	}
-	if ( output_error ) {
-	  fprintf(stderr, "%s: error writing to %s\n", program_name,
-		  (output_name ? output_name : "stdout"));
-	  exit(1);
-	}
-	if ( in != stdin )
-	  fclose(in);
-	return 0;
-}
-
-/*
- * Skip forward or backward over one or more preprocessor directives.
- */
-char *
-ppdirforward(p)
-    char *p;
-{
-    for (; *p == '#'; ++p) {
-	for (; *p != '\r' && *p != '\n'; ++p)
-	    if (*p == 0)
-		return p;
-	if (*p == '\r' && p[1] == '\n')
-	    ++p;
-    }
-    return p;
-}
-char *
-ppdirbackward(p, limit)
-    char *p;
-    char *limit;
-{
-    char *np = p;
-
-    for (;; p = --np) {
-	if (*np == '\n' && np[-1] == '\r')
-	    --np;
-	for (; np > limit && np[-1] != '\r' && np[-1] != '\n'; --np)
-	    if (np[-1] == 0)
-		return np;
-	if (*np != '#')
-	    return p;
-    }
-}
-
-/*
- * Skip over whitespace, comments, and preprocessor directives,
- * in either direction.
- */
-char *
-skipspace(p, dir)
-    char *p;
-    int dir;			/* 1 for forward, -1 for backward */
-{
-    for ( ; ; ) {
-	while ( is_space(*p) )
-	    p += dir;
-	if ( !(*p == '/' && p[dir] == '*') )
-	    break;
-	p += dir;  p += dir;
-	while ( !(*p == '*' && p[dir] == '/') ) {
-	    if ( *p == 0 )
-		return p;	/* multi-line comment?? */
-	    p += dir;
-	}
-	p += dir;  p += dir;
-    }
-    return p;
-}
-
-/* Scan over a quoted string, in either direction. */
-char *
-scanstring(p, dir)
-    char *p;
-    int dir;
-{
-    for (p += dir; ; p += dir)
-	if (*p == '"' && p[-dir] != '\\')
-	    return p + dir;
-}
-
-/*
- * Write blanks over part of a string.
- * Don't overwrite end-of-line characters.
- */
-int
-writeblanks(start, end)
-    char *start;
-    char *end;
-{	char *p;
-	for ( p = start; p < end; p++ )
-	  if ( *p != '\r' && *p != '\n' )
-	    *p = ' ';
-	return 0;
-}
-
-/*
- * Test whether the string in buf is a function definition.
- * The string may contain and/or end with a newline.
- * Return as follows:
- *	0 - definitely not a function definition;
- *	1 - definitely a function definition;
- *	2 - definitely a function prototype (NOT USED);
- *	-1 - may be the beginning of a function definition,
- *		append another line and look again.
- * The reason we don't attempt to convert function prototypes is that
- * Ghostscript's declaration-generating macros look too much like
- * prototypes, and confuse the algorithms.
- */
-int
-test1(buf)
-    char *buf;
-{	char *p = buf;
-	char *bend;
-	char *endfn;
-	int contin;
-
-	if ( !isidfirstchar(*p) )
-	  return 0;		/* no name at left margin */
-	bend = skipspace(ppdirbackward(buf + strlen(buf) - 1, buf), -1);
-	switch ( *bend )
-	   {
-	   case ';': contin = 0 /*2*/; break;
-	   case ')': contin = 1; break;
-	   case '{': return 0;		/* not a function */
-	   case '}': return 0;		/* not a function */
-	   default: contin = -1;
-	   }
-	while ( isidchar(*p) )
-	  p++;
-	endfn = p;
-	p = skipspace(p, 1);
-	if ( *p++ != '(' )
-	  return 0;		/* not a function */
-	p = skipspace(p, 1);
-	if ( *p == ')' )
-	  return 0;		/* no parameters */
-	/* Check that the apparent function name isn't a keyword. */
-	/* We only need to check for keywords that could be followed */
-	/* by a left parenthesis (which, unfortunately, is most of them). */
-	   {	static char *words[] =
-		   {	"asm", "auto", "case", "char", "const", "double",
-			"extern", "float", "for", "if", "int", "long",
-			"register", "return", "short", "signed", "sizeof",
-			"static", "switch", "typedef", "unsigned",
-			"void", "volatile", "while", 0
-		   };
-		char **key = words;
-		char *kp;
-		unsigned len = endfn - buf;
-
-		while ( (kp = *key) != 0 )
-		   {	if ( strlen(kp) == len && !strncmp(kp, buf, len) )
-			  return 0;	/* name is a keyword */
-			key++;
-		   }
-	   }
-	   {
-	       char *id = p;
-	       int len;
-	       /*
-		* Check for identifier1(identifier2) and not
-		* identifier1(void), or identifier1(identifier2, xxxx).
-		*/
-
-	       while ( isidchar(*p) )
-		   p++;
-	       len = p - id;
-	       p = skipspace(p, 1);
-	       if (*p == ',' ||
-		   (*p == ')' && (len != 4 || strncmp(id, "void", 4)))
-		   )
-		   return 0;	/* not a function */
-	   }
-	/*
-	 * If the last significant character was a ), we need to count
-	 * parentheses, because it might be part of a formal parameter
-	 * that is a procedure.
-	 */
-	if (contin > 0) {
-	    int level = 0;
-
-	    for (p = skipspace(buf, 1); *p; p = skipspace(p + 1, 1))
-		level += (*p == '(' ? 1 : *p == ')' ? -1 : 0);
-	    if (level > 0)
-		contin = -1;
-	}
-	return contin;
-}
-
-/* Convert a recognized function definition or header to K&R syntax. */
-int
-convert1(buf, out, header, convert_varargs)
-    char *buf;
-    FILE *out;
-    int header;			/* Boolean */
-    int convert_varargs;	/* Boolean */
-{	char *endfn;
-	char *p;
-	/*
-	 * The breaks table contains pointers to the beginning and end
-	 * of each argument.
-	 */
-	char **breaks;
-	unsigned num_breaks = 2;	/* for testing */
-	char **btop;
-	char **bp;
-	char **ap;
-	char *vararg = 0;
-
-	/* Pre-ANSI implementations don't agree on whether strchr */
-	/* is called strchr or index, so we open-code it here. */
-	for ( endfn = buf; *(endfn++) != '('; )
-	  ;
-top:	p = endfn;
-	breaks = (char **)malloc(sizeof(char *) * num_breaks * 2);
-	if ( breaks == NULL )
-	   {	/* Couldn't allocate break table, give up */
-		fprintf(stderr, "Unable to allocate break table!\n");
-		fputs(buf, out);
-		return -1;
-	   }
-	btop = breaks + num_breaks * 2 - 2;
-	bp = breaks;
-	/* Parse the argument list */
-	do
-	   {	int level = 0;
-		char *lp = NULL;
-		char *rp = NULL;
-		char *end = NULL;
-
-		if ( bp >= btop )
-		   {	/* Filled up break table. */
-			/* Allocate a bigger one and start over. */
-			free((char *)breaks);
-			num_breaks <<= 1;
-			goto top;
-		   }
-		*bp++ = p;
-		/* Find the end of the argument */
-		for ( ; end == NULL; p++ )
-		   {	switch(*p)
-			   {
-			   case ',':
-				if ( !level ) end = p;
-				break;
-			   case '(':
-				if ( !level ) lp = p;
-				level++;
-				break;
-			   case ')':
-				if ( --level < 0 ) end = p;
-				else rp = p;
-				break;
-			   case '/':
-				if (p[1] == '*')
-				    p = skipspace(p, 1) - 1;
-				break;
-			   case '"':
-			       p = scanstring(p, 1) - 1;
-			       break;
-			   default:
-				;
-			   }
-		   }
-		/* Erase any embedded prototype parameters. */
-		if ( lp && rp )
-		  writeblanks(lp + 1, rp);
-		p--;			/* back up over terminator */
-		/* Find the name being declared. */
-		/* This is complicated because of procedure and */
-		/* array modifiers. */
-		for ( ; ; )
-		   {	p = skipspace(p - 1, -1);
-			switch ( *p )
-			   {
-			   case ']':	/* skip array dimension(s) */
-			   case ')':	/* skip procedure args OR name */
-			   {	int level = 1;
-				while ( level )
-				 switch ( *--p )
-				   {
-				   case ']': case ')':
-				       level++;
-				       break;
-				   case '[': case '(':
-				       level--;
-				       break;
-				   case '/':
-				       if (p > buf && p[-1] == '*')
-					   p = skipspace(p, -1) + 1;
-				       break;
-				   case '"':
-				       p = scanstring(p, -1) + 1;
-				       break;
-				   default: ;
-				   }
-			   }
-				if ( *p == '(' && *skipspace(p + 1, 1) == '*' )
-				   {	/* We found the name being declared */
-					while ( !isidfirstchar(*p) )
-					  p = skipspace(p, 1) + 1;
-					goto found;
-				   }
-				break;
-			   default:
-				goto found;
-			   }
-		   }
-found:		if ( *p == '.' && p[-1] == '.' && p[-2] == '.' )
-		  {	if ( convert_varargs )
-			  {	*bp++ = "va_alist";
-				vararg = p-2;
-			  }
-			else
-			  {	p++;
-				if ( bp == breaks + 1 )	/* sole argument */
-				  writeblanks(breaks[0], p);
-				else
-				  writeblanks(bp[-1] - 1, p);
-				bp--;
-			  }
-		   }
-		else
-		   {	while ( isidchar(*p) ) p--;
-			*bp++ = p+1;
-		   }
-		p = end;
-	   }
-	while ( *p++ == ',' );
-	*bp = p;
-	/* Make a special check for 'void' arglist */
-	if ( bp == breaks+2 )
-	   {	p = skipspace(breaks[0], 1);
-		if ( !strncmp(p, "void", 4) )
-		   {	p = skipspace(p+4, 1);
-			if ( p == breaks[2] - 1 )
-			   {	bp = breaks;	/* yup, pretend arglist is empty */
-				writeblanks(breaks[0], p + 1);
-			   }
-		   }
-	   }
-	/* Put out the function name and left parenthesis. */
-	p = buf;
-	while ( p != endfn ) putc(*p, out), p++;
-	/* Put out the declaration. */
-	if ( header )
-	  {	fputs(");", out);
-		for ( p = breaks[0]; *p; p++ )
-		  if ( *p == '\r' || *p == '\n' )
-		    putc(*p, out);
-	  }
-	else
-	  {	for ( ap = breaks+1; ap < bp; ap += 2 )
-		  {	p = *ap;
-			while ( isidchar(*p) )
-			  putc(*p, out), p++;
-			if ( ap < bp - 1 )
-			  fputs(", ", out);
-		  }
-		fputs(")  ", out);
-		/* Put out the argument declarations */
-		for ( ap = breaks+2; ap <= bp; ap += 2 )
-		  (*ap)[-1] = ';';
-		if ( vararg != 0 )
-		  {	*vararg = 0;
-			fputs(breaks[0], out);		/* any prior args */
-			fputs("va_dcl", out);		/* the final arg */
-			fputs(bp[0], out);
-		  }
-		else
-		  fputs(breaks[0], out);
-	  }
-	free((char *)breaks);
-	return 0;
-}

ar-lib

@@ -0,0 +1,270 @@
+#! /bin/sh
+# Wrapper for Microsoft lib.exe
+
+me=ar-lib
+scriptversion=2012-03-01.08; # UTC
+
+# Copyright (C) 2010-2013 Free Software Foundation, Inc.
+# Written by Peter Rosin <peda@lysator.liu.se>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+
+# func_error message
+func_error ()
+{
+  echo "$me: $1" 1>&2
+  exit 1
+}
+
+file_conv=
+
+# func_file_conv build_file
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv in
+	mingw)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_at_file at_file operation archive
+# Iterate over all members in AT_FILE performing OPERATION on ARCHIVE
+# for each of them.
+# When interpreting the content of the @FILE, do NOT use func_file_conv,
+# since the user would need to supply preconverted file names to
+# binutils ar, at least for MinGW.
+func_at_file ()
+{
+  operation=$2
+  archive=$3
+  at_file_contents=`cat "$1"`
+  eval set x "$at_file_contents"
+  shift
+
+  for member
+  do
+    $AR -NOLOGO $operation:"$member" "$archive" || exit $?
+  done
+}
+
+case $1 in
+  '')
+     func_error "no command.  Try '$0 --help' for more information."
+     ;;
+  -h | --h*)
+    cat <<EOF
+Usage: $me [--help] [--version] PROGRAM ACTION ARCHIVE [MEMBER...]
+
+Members may be specified in a file named with @FILE.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "$me, version $scriptversion"
+    exit $?
+    ;;
+esac
+
+if test $# -lt 3; then
+  func_error "you must specify a program, an action and an archive"
+fi
+
+AR=$1
+shift
+while :
+do
+  if test $# -lt 2; then
+    func_error "you must specify a program, an action and an archive"
+  fi
+  case $1 in
+    -lib | -LIB \
+    | -ltcg | -LTCG \
+    | -machine* | -MACHINE* \
+    | -subsystem* | -SUBSYSTEM* \
+    | -verbose | -VERBOSE \
+    | -wx* | -WX* )
+      AR="$AR $1"
+      shift
+      ;;
+    *)
+      action=$1
+      shift
+      break
+      ;;
+  esac
+done
+orig_archive=$1
+shift
+func_file_conv "$orig_archive"
+archive=$file
+
+# strip leading dash in $action
+action=${action#-}
+
+delete=
+extract=
+list=
+quick=
+replace=
+index=
+create=
+
+while test -n "$action"
+do
+  case $action in
+    d*) delete=yes  ;;
+    x*) extract=yes ;;
+    t*) list=yes    ;;
+    q*) quick=yes   ;;
+    r*) replace=yes ;;
+    s*) index=yes   ;;
+    S*)             ;; # the index is always updated implicitly
+    c*) create=yes  ;;
+    u*)             ;; # TODO: don't ignore the update modifier
+    v*)             ;; # TODO: don't ignore the verbose modifier
+    *)
+      func_error "unknown action specified"
+      ;;
+  esac
+  action=${action#?}
+done
+
+case $delete$extract$list$quick$replace,$index in
+  yes,* | ,yes)
+    ;;
+  yesyes*)
+    func_error "more than one action specified"
+    ;;
+  *)
+    func_error "no action specified"
+    ;;
+esac
+
+if test -n "$delete"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  for member
+  do
+    case $1 in
+      @*)
+        func_at_file "${1#@}" -REMOVE "$archive"
+        ;;
+      *)
+        func_file_conv "$1"
+        $AR -NOLOGO -REMOVE:"$file" "$archive" || exit $?
+        ;;
+    esac
+  done
+
+elif test -n "$extract"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  if test $# -gt 0; then
+    for member
+    do
+      case $1 in
+        @*)
+          func_at_file "${1#@}" -EXTRACT "$archive"
+          ;;
+        *)
+          func_file_conv "$1"
+          $AR -NOLOGO -EXTRACT:"$file" "$archive" || exit $?
+          ;;
+      esac
+    done
+  else
+    $AR -NOLOGO -LIST "$archive" | sed -e 's/\\/\\\\/g' | while read member
+    do
+      $AR -NOLOGO -EXTRACT:"$member" "$archive" || exit $?
+    done
+  fi
+
+elif test -n "$quick$replace"; then
+  if test ! -f "$orig_archive"; then
+    if test -z "$create"; then
+      echo "$me: creating $orig_archive"
+    fi
+    orig_archive=
+  else
+    orig_archive=$archive
+  fi
+
+  for member
+  do
+    case $1 in
+    @*)
+      func_file_conv "${1#@}"
+      set x "$@" "@$file"
+      ;;
+    *)
+      func_file_conv "$1"
+      set x "$@" "$file"
+      ;;
+    esac
+    shift
+    shift
+  done
+
+  if test -n "$orig_archive"; then
+    $AR -NOLOGO -OUT:"$archive" "$orig_archive" "$@" || exit $?
+  else
+    $AR -NOLOGO -OUT:"$archive" "$@" || exit $?
+  fi
+
+elif test -n "$list"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  $AR -NOLOGO -LIST "$archive" || exit $?
+fi

cderror.h

@@ -2,6 +2,7 @@
  * cderror.h
  *
  * Copyright (C) 1994-1997, Thomas G. Lane.
+ * Modified 2009 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -45,6 +46,7 @@ JMESSAGE(JERR_BMP_BADHEADER, "Invalid BMP file: bad header length")
 JMESSAGE(JERR_BMP_BADPLANES, "Invalid BMP file: biPlanes not equal to 1")
 JMESSAGE(JERR_BMP_COLORSPACE, "BMP output must be grayscale or RGB")
 JMESSAGE(JERR_BMP_COMPRESSED, "Sorry, compressed BMPs not yet supported")
+JMESSAGE(JERR_BMP_EMPTY, "Empty BMP image")
 JMESSAGE(JERR_BMP_NOT, "Not a BMP file - does not start with BM")
 JMESSAGE(JTRC_BMP, "%ux%u 24-bit BMP image")
 JMESSAGE(JTRC_BMP_MAPPED, "%ux%u 8-bit colormapped BMP image")

change.log

@@ -1,6 +1,145 @@
 CHANGE LOG for Independent JPEG Group's JPEG software
 
 
+Version 9a  19-Jan-2014
+-----------------------
+
+Add support for wide gamut color spaces (JFIF version 2).
+Improve clarity and accuracy in color conversion modules.
+Note: Requires rebuild of test images.
+
+Extend the bit depth support to all values from 8 to 12
+(BITS_IN_JSAMPLE configuration option in jmorecfg.h).
+jpegtran now supports N bits sample data precision with all N from 8 to 12
+in a single instance.  Thank to Roland Fassauer for inspiration.
+
+Try to resolve issues with new boolean type definition.
+Thank also to v4hn for suggestion.
+
+Enable option to use default Huffman tables for lossless compression
+(for hardware solution), and in this case improve lossless RGB compression
+with reversible color transform.  Thank to Benny Alexandar for hint.
+
+Extend the entropy decoding structure, so that extraneous bytes between
+compressed scan data and following marker can be reported correctly.
+Thank to Nigel Tao for hint.
+
+Add jpegtran -wipe option and extension for -crop.
+Thank to Andrew Senior, David Clunie, and Josef Schmid for suggestion.
+
+
+Version 9  13-Jan-2013
+----------------------
+
+Add cjpeg -rgb1 option to create an RGB JPEG file, and insert
+a simple reversible color transform into the processing which
+significantly improves the compression.
+The recommended command for lossless coding of RGB images is now
+cjpeg -rgb1 -block 1 -arithmetic.
+As said, this option improves the compression significantly, but
+the files are not compatible with JPEG decoders prior to IJG v9
+due to the included color transform.
+The used color transform and marker signaling is compatible with
+other JPEG standards (e.g., JPEG-LS part 2).
+
+Remove the automatic de-ANSI-fication support (Automake 1.12).
+Thank also to Nitin A Kamble for suggestion.
+
+Add remark for jpeg_mem_dest() in jdatadst.c.
+Thank to Elie-Gregoire Khoury for the hint.
+
+Support files with invalid component identifiers (created
+by Adobe PDF).  Thank to Robin Watts for the suggestion.
+
+Adapt full buffer case in jcmainct.c for use with scaled DCT.
+Thank to Sergii Biloshytskyi for the suggestion.
+
+Add type identifier for declaration of noreturn functions.
+Thank to Brett L. Moore for the suggestion.
+
+Correct argument type in format string, avoid compiler warnings.
+Thank to Vincent Torri for hint.
+
+Add missing #include directives in configuration checks, avoid
+configuration errors.  Thank to John Spencer for the hint.
+
+
+Version 8d  15-Jan-2012
+-----------------------
+
+Add cjpeg -rgb option to create RGB JPEG files.
+Using this switch suppresses the conversion from RGB
+colorspace input to the default YCbCr JPEG colorspace.
+This feature allows true lossless JPEG coding of RGB color images.
+The recommended command for this purpose is currently
+cjpeg -rgb -block 1 -arithmetic.
+SmartScale capable decoder (introduced with IJG JPEG 8) required.
+Thank to Michael Koch for the initial suggestion.
+
+Add option to disable the region adjustment in the transupp crop code.
+Thank to Jeffrey Friedl for the suggestion.
+
+Thank to Richard Jones and Edd Dawson for various minor corrections.
+
+Thank to Akim Demaille for configure.ac cleanup.
+
+
+Version 8c  16-Jan-2011
+-----------------------
+
+Add option to compression library and cjpeg (-block N) to use
+different DCT block size.
+All N from 1 to 16 are possible.  Default is 8 (baseline format).
+Larger values produce higher compression,
+smaller values produce higher quality.
+SmartScale capable decoder (introduced with IJG JPEG 8) required.
+
+
+Version 8b  16-May-2010
+-----------------------
+
+Repair problem in new memory source manager with corrupt JPEG data.
+Thank to Ted Campbell and Samuel Chun for the report.
+
+Repair problem in Makefile.am test target.
+Thank to anonymous user for the report.
+
+Support MinGW installation with automatic configure.
+Thank to Volker Grabsch for the suggestion.
+
+
+Version 8a  28-Feb-2010
+-----------------------
+
+Writing tables-only datastreams via jpeg_write_tables works again.
+
+Support 32-bit BMPs (RGB image with Alpha channel) for read in cjpeg.
+Thank to Brett Blackham for the suggestion.
+
+Improve accuracy in floating point IDCT calculation.
+Thank to Robert Hooke for the hint.
+
+
+Version 8  10-Jan-2010
+----------------------
+
+jpegtran now supports the same -scale option as djpeg for "lossless" resize.
+An implementation of the JPEG SmartScale extension is required for this
+feature.  A (draft) specification of the JPEG SmartScale extension is
+available as a contributed document at ITU and ISO.  Revision 2 or later
+of the document is required (latest document version is Revision 3).
+The SmartScale extension will enable more features beside lossless resize
+in future implementations, as described in the document (new compression
+options).
+
+Add sanity check in BMP reader module to avoid cjpeg crash for empty input
+image (thank to Isaev Ildar of ISP RAS, Moscow, RU for reporting this error).
+
+Add data source and destination managers for read from and write to
+memory buffers.  New API functions jpeg_mem_src and jpeg_mem_dest.
+Thank to Roberto Boni from Italy for the suggestion.
+
+
 Version 7  27-Jun-2009
 ----------------------
 

cjpeg.1

@@ -1,4 +1,4 @@
-.TH CJPEG 1 "10 June 2009"
+.TH CJPEG 1 "23 November 2013"
 .SH NAME
 cjpeg \- compress an image file to a JPEG file
 .SH SYNOPSIS
@@ -49,6 +49,17 @@ By saying
 .BR \-grayscale ,
 you'll get a smaller JPEG file that takes less time to process.
 .TP
+.B \-rgb
+Create RGB JPEG file.
+Using this switch suppresses the conversion from RGB
+colorspace input to the default YCbCr JPEG colorspace.
+You can use this switch in combination with the
+.BI \-block " N"
+switch (see below) for lossless JPEG coding.
+See also the
+.B \-rgb1
+switch below.
+.TP
 .B \-optimize
 Perform optimization of entropy encoding parameters.  Without this, default
 encoding parameters are used.
@@ -64,7 +75,10 @@ Create progressive JPEG file (see below).
 .TP
 .BI \-scale " M/N"
 Scale the output image by a factor M/N.  Currently supported scale factors are
-8/N with all N from 1 to 16.
+M/N with all N from 1 to 16, where M is the destination DCT size, which is 8
+by default (see
+.BI \-block " N"
+switch below).
 .TP
 .B \-targa
 Input file is Targa format.  Targa files that contain an "identification"
@@ -135,7 +149,7 @@ and assigned to components with
 .B \-qslots
 parameter (see the "wizard" switches below).
 .B Caution:
-You must explicitely add
+You must explicitly add
 .BI \-sample " 1x1"
 for efficient separate color
 quality selection, since the default value used by library is 2x2!
@@ -152,6 +166,59 @@ about the same --- often a little smaller.
 .PP
 Switches for advanced users:
 .TP
+.B \-arithmetic
+Use arithmetic coding.
+.B Caution:
+arithmetic coded JPEG is not yet widely implemented, so many decoders will
+be unable to view an arithmetic coded JPEG file at all.
+.TP
+.BI \-block " N"
+Set DCT block size.  All N from 1 to 16 are possible.
+Default is 8 (baseline format).
+Larger values produce higher compression,
+smaller values produce higher quality
+(exact DCT stage possible with 1 or 2; with the default quality of 75 and
+default Luminance qtable the DCT+Quantization stage is lossless for N=1).
+.B Caution:
+An implementation of the JPEG SmartScale extension is required for this
+feature.  SmartScale enabled JPEG is not yet widely implemented, so many
+decoders will be unable to view a SmartScale extended JPEG file at all.
+.TP
+.B \-rgb1
+Create RGB JPEG file with reversible color transform.
+Works like the
+.B \-rgb
+switch (see above) and inserts a simple reversible color transform
+into the processing which significantly improves the compression.
+Use this switch in combination with the
+.BI \-block " N"
+switch (see above) for lossless JPEG coding.
+.B Caution:
+A decoder with inverse color transform support is required for
+this feature.  Reversible color transform support is not yet
+widely implemented, so many decoders will be unable to view
+a reversible color transformed JPEG file at all.
+.TP
+.B \-bgycc
+Create big gamut YCC JPEG file.
+In this type of encoding the color difference components are quantized
+further by a factor of 2 compared to the normal Cb/Cr values, thus creating
+space to allow larger color values with higher saturation than the normal
+gamut limits to be encoded.  In order to compensate for the loss of color
+fidelity compared to a normal YCC encoded file, the color quantization
+tables can be adjusted accordingly.  For example,
+.B cjpeg \-bgycc \-quality
+80,90 will give similar results as
+.B cjpeg \-quality
+80.
+.B Caution:
+For correct decompression a decoder with big gamut YCC support (JFIF
+version 2) is required.  An old decoder may or may not display a big
+gamut YCC encoded JPEG file, depending on JFIF version check and
+corresponding warning/error configuration.  In case of a granted
+decompression the old decoder will display the image with half
+saturated colors.
+.TP
 .B \-dct int
 Use integer DCT method (default).
 .TP
@@ -219,12 +286,6 @@ visibly blur the image, however.
 .PP
 Switches for wizards:
 .TP
-.B \-arithmetic
-Use arithmetic coding.
-.B Caution:
-arithmetic coded JPEG is not yet widely implemented, so many decoders will be
-unable to view an arithmetic coded JPEG file at all.
-.TP
 .B \-baseline
 Force baseline-compatible quantization tables to be generated.  This clamps
 quantization values to 8 bits even at low quality settings.  (This switch is
@@ -314,7 +375,8 @@ Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44.
 .SH AUTHOR
 Independent JPEG Group
 .SH BUGS
-GIF input files are no longer supported, to avoid the Unisys LZW patent.
+GIF input files are no longer supported, to avoid the Unisys LZW patent
+(now expired).
 (Conversion of GIF files to JPEG is usually a bad idea anyway.)
 .PP
 Not all variants of BMP and Targa file formats are supported.

cjpeg.c

@@ -2,7 +2,7 @@
  * cjpeg.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
- * Modified 2003-2008 by Guido Vollbeding.
+ * Modified 2003-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -152,6 +152,7 @@ usage (void)
   fprintf(stderr, "Switches (names may be abbreviated):\n");
   fprintf(stderr, "  -quality N[,...]   Compression quality (0..100; 5-95 is useful range)\n");
   fprintf(stderr, "  -grayscale     Create monochrome JPEG file\n");
+  fprintf(stderr, "  -rgb           Create RGB JPEG file\n");
 #ifdef ENTROPY_OPT_SUPPORTED
   fprintf(stderr, "  -optimize      Optimize Huffman table (smaller file, but slow compression)\n");
 #endif
@@ -165,6 +166,16 @@ usage (void)
   fprintf(stderr, "  -targa         Input file is Targa format (usually not needed)\n");
 #endif
   fprintf(stderr, "Switches for advanced users:\n");
+#ifdef C_ARITH_CODING_SUPPORTED
+  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
+#endif
+#ifdef DCT_SCALING_SUPPORTED
+  fprintf(stderr, "  -block N       DCT block size (1..16; default is 8)\n");
+#endif
+#if JPEG_LIB_VERSION_MAJOR >= 9
+  fprintf(stderr, "  -rgb1          Create RGB JPEG file with reversible color transform\n");
+  fprintf(stderr, "  -bgycc         Create big gamut YCC JPEG file\n");
+#endif
 #ifdef DCT_ISLOW_SUPPORTED
   fprintf(stderr, "  -dct int       Use integer DCT method%s\n",
 	  (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
@@ -186,9 +197,6 @@ usage (void)
   fprintf(stderr, "  -outfile name  Specify name for output file\n");
   fprintf(stderr, "  -verbose  or  -debug   Emit debug output\n");
   fprintf(stderr, "Switches for wizards:\n");
-#ifdef C_ARITH_CODING_SUPPORTED
-  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
-#endif
   fprintf(stderr, "  -baseline      Force baseline quantization tables\n");
   fprintf(stderr, "  -qtables file  Use quantization tables given in file\n");
   fprintf(stderr, "  -qslots N[,...]    Set component quantization tables\n");
@@ -254,10 +262,29 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       exit(EXIT_FAILURE);
 #endif
 
-    } else if (keymatch(arg, "baseline", 1)) {
+    } else if (keymatch(arg, "baseline", 2)) {
       /* Force baseline-compatible output (8-bit quantizer values). */
       force_baseline = TRUE;
 
+    } else if (keymatch(arg, "block", 2)) {
+      /* Set DCT block size. */
+#if defined DCT_SCALING_SUPPORTED && JPEG_LIB_VERSION_MAJOR >= 8 && \
+      (JPEG_LIB_VERSION_MAJOR > 8 || JPEG_LIB_VERSION_MINOR >= 3)
+      int val;
+
+      if (++argn >= argc)	/* advance to next argument */
+	usage();
+      if (sscanf(argv[argn], "%d", &val) != 1)
+	usage();
+      if (val < 1 || val > 16)
+	usage();
+      cinfo->block_size = val;
+#else
+      fprintf(stderr, "%s: sorry, block size setting not supported\n",
+	      progname);
+      exit(EXIT_FAILURE);
+#endif
+
     } else if (keymatch(arg, "dct", 2)) {
       /* Select DCT algorithm. */
       if (++argn >= argc)	/* advance to next argument */
@@ -287,6 +314,27 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       /* Force a monochrome JPEG file to be generated. */
       jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
 
+    } else if (keymatch(arg, "rgb", 3) || keymatch(arg, "rgb1", 4)) {
+      /* Force an RGB JPEG file to be generated. */
+#if JPEG_LIB_VERSION_MAJOR >= 9
+      /* Note: Entropy table assignment in jpeg_set_colorspace depends
+       * on color_transform.
+       */
+      cinfo->color_transform = arg[3] ? JCT_SUBTRACT_GREEN : JCT_NONE;
+#endif
+      jpeg_set_colorspace(cinfo, JCS_RGB);
+
+    } else if (keymatch(arg, "bgycc", 5)) {
+      /* Force a big gamut YCC JPEG file to be generated. */
+#if JPEG_LIB_VERSION_MAJOR >= 9 && \
+      (JPEG_LIB_VERSION_MAJOR > 9 || JPEG_LIB_VERSION_MINOR >= 1)
+      jpeg_set_colorspace(cinfo, JCS_BG_YCC);
+#else
+      fprintf(stderr, "%s: sorry, BG_YCC colorspace not supported\n",
+	      progname);
+      exit(EXIT_FAILURE);
+#endif
+
     } else if (keymatch(arg, "maxmemory", 3)) {
       /* Maximum memory in Kb (or Mb with 'm'). */
       long lval;
@@ -301,7 +349,7 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       cinfo->mem->max_memory_to_use = lval * 1000L;
 
     } else if (keymatch(arg, "nosmooth", 3)) {
-      /* Suppress fancy downsampling */
+      /* Suppress fancy downsampling. */
       cinfo->do_fancy_downsampling = FALSE;
 
     } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {
@@ -387,7 +435,7 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       /* Scale the image by a fraction M/N. */
       if (++argn >= argc)	/* advance to next argument */
 	usage();
-      if (sscanf(argv[argn], "%d/%d",
+      if (sscanf(argv[argn], "%u/%u",
 		 &cinfo->scale_num, &cinfo->scale_denom) != 2)
 	usage();
 

compile

@@ -0,0 +1,347 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2012-10-14.11; # UTC
+
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" ""	$nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv/,$2, in
+	*,$file_conv,*)
+	  ;;
+	mingw/*)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin/*)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine/*)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+  # Assume a capable shell
+  lib_path=
+  shared=:
+  linker_opts=
+  for arg
+  do
+    if test -n "$eat"; then
+      eat=
+    else
+      case $1 in
+	-o)
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
+	  eat=1
+	  case $2 in
+	    *.o | *.[oO][bB][jJ])
+	      func_file_conv "$2"
+	      set x "$@" -Fo"$file"
+	      shift
+	      ;;
+	    *)
+	      func_file_conv "$2"
+	      set x "$@" -Fe"$file"
+	      shift
+	      ;;
+	  esac
+	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-I*)
+	  func_file_conv "${1#-I}" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-l*)
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
+	-L*)
+	  func_cl_dashL "${1#-L}"
+	  ;;
+	-static)
+	  shared=false
+	  ;;
+	-Wl,*)
+	  arg=${1#-Wl,}
+	  save_ifs="$IFS"; IFS=','
+	  for flag in $arg; do
+	    IFS="$save_ifs"
+	    linker_opts="$linker_opts $flag"
+	  done
+	  IFS="$save_ifs"
+	  ;;
+	-Xlinker)
+	  eat=1
+	  linker_opts="$linker_opts $2"
+	  ;;
+	-*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+	  func_file_conv "$1"
+	  set x "$@" -Tp"$file"
+	  shift
+	  ;;
+	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+	  func_file_conv "$1" mingw
+	  set x "$@" "$file"
+	  shift
+	  ;;
+	*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+      esac
+    fi
+    shift
+  done
+  if test -n "$linker_opts"; then
+    linker_opts="-link$linker_opts"
+  fi
+  exec "$@" $linker_opts
+  exit 1
+}
+
+eat=
+
+case $1 in
+  '')
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit $?
+    ;;
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
+    func_cl_wrapper "$@"      # Doesn't return...
+    ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no '-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # '.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:

config.guess

@@ -1,14 +1,12 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   Copyright 1992-2013 Free Software Foundation, Inc.
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-#   Free Software Foundation, Inc.
 
-timestamp='2009-04-27'
+timestamp='2013-11-29'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
@@ -17,26 +15,22 @@ timestamp='2009-04-27'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
+# the same distribution terms that you use for the rest of that
-
+# program.  This Exception is an additional permission under section 7
-
+# of the GNU General Public License, version 3 ("GPLv3").
-# Originally written by Per Bothner <per@bothner.com>.
-# Please send patches to <config-patches@gnu.org>.  Submit a context
-# diff and a properly formatted ChangeLog entry.
 #
-# This script attempts to guess a canonical system name similar to
+# Originally written by Per Bothner.
-# config.sub.  If it succeeds, it prints the system name on stdout, and
-# exits with 0.  Otherwise, it exits with 1.
 #
-# The plan is that this can be called by configure scripts if you
+# You can get the latest version of this script from:
-# don't specify an explicit build system type.
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+#
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+
 
 me=`echo "$0" | sed -e 's,.*/,,'`
 
@@ -56,8 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+Copyright 1992-2013 Free Software Foundation, Inc.
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -139,12 +132,33 @@ UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
 UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
+case "${UNAME_SYSTEM}" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	eval $set_cc_for_build
+	cat <<-EOF > $dummy.c
+	#include <features.h>
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+	;;
+esac
+
 # Note: order is significant - the case branches are not exclusive.
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     *:NetBSD:*:*)
 	# NetBSD (nbsd) targets should (where applicable) match one or
-	# more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
 	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
 	# switched to ELF, *-*-netbsd* would select the old
 	# object file format.  This provides both forward
@@ -170,7 +184,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
 		eval $set_cc_for_build
 		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
-			| grep __ELF__ >/dev/null
+			| grep -q __ELF__
 		then
 		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
 		    # Return netbsd for either.  FIX?
@@ -201,6 +215,10 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
 	echo "${machine}-${os}${release}"
 	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+	exit ;;
     *:OpenBSD:*:*)
 	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
 	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
@@ -269,7 +287,10 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# A Xn.n version is an unreleased experimental baselevel.
 	# 1.2 uses "1.2" for uname -r.
 	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-	exit ;;
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
     Alpha\ *:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# Should we change UNAME_MACHINE based on the output of uname instead
@@ -300,7 +321,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
 	echo arm-acorn-riscix${UNAME_RELEASE}
 	exit ;;
-    arm:riscos:*:*|arm:RISCOS:*:*)
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
 	echo arm-unknown-riscos
 	exit ;;
     SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
@@ -333,6 +354,9 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
 	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux${UNAME_RELEASE}
+	exit ;;
     i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
 	eval $set_cc_for_build
 	SUN_ARCH="i386"
@@ -548,7 +572,7 @@ EOF
 		echo rs6000-ibm-aix3.2
 	fi
 	exit ;;
-    *:AIX:*:[456])
+    *:AIX:*:[4567])
 	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
 	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
 		IBM_ARCH=rs6000
@@ -656,7 +680,7 @@ EOF
 	    # => hppa64-hp-hpux11.23
 
 	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
-		grep __LP64__ >/dev/null
+		grep -q __LP64__
 	    then
 		HP_ARCH="hppa2.0w"
 	    else
@@ -785,21 +809,26 @@ EOF
 	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
 	exit ;;
     *:FreeBSD:*:*)
-	case ${UNAME_MACHINE} in
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
-	    pc98)
+	case ${UNAME_PROCESSOR} in
-		echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	    amd64)
 		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	    *)
-		echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	esac
 	exit ;;
     i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
 	exit ;;
+    *:MINGW64*:*)
+	echo ${UNAME_MACHINE}-pc-mingw64
+	exit ;;
     *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
+    i*:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
     i*:windows32*:*)
 	# uname -m includes "-pc" on this system.
 	echo ${UNAME_MACHINE}-mingw32
@@ -807,12 +836,12 @@ EOF
     i*:PW*:*)
 	echo ${UNAME_MACHINE}-pc-pw32
 	exit ;;
-    *:Interix*:[3456]*)
+    *:Interix*:*)
 	case ${UNAME_MACHINE} in
 	    x86)
 		echo i586-pc-interix${UNAME_RELEASE}
 		exit ;;
-	    EM64T | authenticamd | genuineintel)
+	    authenticamd | genuineintel | EM64T)
 		echo x86_64-unknown-interix${UNAME_RELEASE}
 		exit ;;
 	    IA64)
@@ -822,6 +851,9 @@ EOF
     [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
 	echo i${UNAME_MACHINE}-pc-mks
 	exit ;;
+    8664:Windows_NT:*)
+	echo x86_64-pc-mks
+	exit ;;
     i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
@@ -842,100 +874,21 @@ EOF
 	exit ;;
     *:GNU:*:*)
 	# the GNU system
-	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
 	exit ;;
     *:GNU/*:*:*)
 	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
 	exit ;;
     i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
 	exit ;;
-    arm*:Linux:*:*)
+    aarch64:Linux:*:*)
-	eval $set_cc_for_build
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
-	    | grep -q __ARM_EABI__
-	then
-	    echo ${UNAME_MACHINE}-unknown-linux-gnu
-	else
-	    echo ${UNAME_MACHINE}-unknown-linux-gnueabi
-	fi
 	exit ;;
-    avr32*:Linux:*:*)
+    aarch64_be:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	UNAME_MACHINE=aarch64_be
-	exit ;;
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-    cris:Linux:*:*)
-	echo cris-axis-linux-gnu
-	exit ;;
-    crisv32:Linux:*:*)
-	echo crisv32-axis-linux-gnu
-	exit ;;
-    frv:Linux:*:*)
-    	echo frv-unknown-linux-gnu
-	exit ;;
-    ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    m68*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    mips:Linux:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#undef CPU
-	#undef mips
-	#undef mipsel
-	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mipsel
-	#else
-	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips
-	#else
-	CPU=
-	#endif
-	#endif
-EOF
-	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
-	    /^CPU/{
-		s: ::g
-		p
-	    }'`"
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
-	;;
-    mips64:Linux:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#undef CPU
-	#undef mips64
-	#undef mips64el
-	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mips64el
-	#else
-	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips64
-	#else
-	CPU=
-	#endif
-	#endif
-EOF
-	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
-	    /^CPU/{
-		s: ::g
-		p
-	    }'`"
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
-	;;
-    or32:Linux:*:*)
-	echo or32-unknown-linux-gnu
-	exit ;;
-    ppc:Linux:*:*)
-	echo powerpc-unknown-linux-gnu
-	exit ;;
-    ppc64:Linux:*:*)
-	echo powerpc64-unknown-linux-gnu
 	exit ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
@@ -947,105 +900,131 @@ EOF
 	  EV67)  UNAME_MACHINE=alphaev67 ;;
 	  EV68*) UNAME_MACHINE=alphaev68 ;;
 	esac
-	objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
+	objdump --private-headers /bin/sh | grep -q ld.so.1
-	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
+	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arm*:Linux:*:*)
+	eval $set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    cris:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    crisv32:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    frv:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    hexagon:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    i*86:Linux:*:*)
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+	exit ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m32r*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
+	;;
+    or1k:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    or32:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     padre:Linux:*:*)
-	echo sparc-unknown-linux-gnu
+	echo sparc-unknown-linux-${LIBC}
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-${LIBC}
 	exit ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
+	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
-	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
+	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
-	  *)    echo hppa-unknown-linux-gnu ;;
+	  *)    echo hppa-unknown-linux-${LIBC} ;;
 	esac
 	exit ;;
-    parisc64:Linux:*:* | hppa64:Linux:*:*)
+    ppc64:Linux:*:*)
-	echo hppa64-unknown-linux-gnu
+	echo powerpc64-unknown-linux-${LIBC}
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-${LIBC}
+	exit ;;
+    ppc64le:Linux:*:*)
+	echo powerpc64le-unknown-linux-${LIBC}
+	exit ;;
+    ppcle:Linux:*:*)
+	echo powerpcle-unknown-linux-${LIBC}
 	exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
-	echo ${UNAME_MACHINE}-ibm-linux
+	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
 	exit ;;
     sh64*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     sh*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    tile*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     vax:Linux:*:*)
-	echo ${UNAME_MACHINE}-dec-linux-gnu
+	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
 	exit ;;
     x86_64:Linux:*:*)
-	echo x86_64-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     xtensa*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
-    i*86:Linux:*:*)
-	# The BFD linker knows what the default object file format is, so
-	# first see if it will tell us. cd to the root directory to prevent
-	# problems with other programs or directories called `ld' in the path.
-	# Set LC_ALL=C to ensure ld outputs messages in English.
-	ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
-			 | sed -ne '/supported targets:/!d
-				    s/[ 	][ 	]*/ /g
-				    s/.*supported targets: *//
-				    s/ .*//
-				    p'`
-        case "$ld_supported_targets" in
-	  elf32-i386)
-		TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
-		;;
-	  a.out-i386-linux)
-		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
-		exit ;;
-	  "")
-		# Either a pre-BFD a.out linker (linux-gnuoldld) or
-		# one that does not give us useful --help.
-		echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
-		exit ;;
-	esac
-	# Determine whether the default compiler is a.out or elf
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#include <features.h>
-	#ifdef __ELF__
-	# ifdef __GLIBC__
-	#  if __GLIBC__ >= 2
-	LIBC=gnu
-	#  else
-	LIBC=gnulibc1
-	#  endif
-	# else
-	LIBC=gnulibc1
-	# endif
-	#else
-	#if defined(__INTEL_COMPILER) || defined(__PGI) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
-	LIBC=gnu
-	#else
-	LIBC=gnuaout
-	#endif
-	#endif
-	#ifdef __dietlibc__
-	LIBC=dietlibc
-	#endif
-EOF
-	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
-	    /^LIBC/{
-		s: ::g
-		p
-	    }'`"
-	test x"${LIBC}" != x && {
-		echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
-		exit
-	}
-	test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
-	;;
     i*86:DYNIX/ptx:4*:*)
 	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
 	# earlier versions are messed up and put the nodename in both
@@ -1074,7 +1053,7 @@ EOF
     i*86:syllable:*:*)
 	echo ${UNAME_MACHINE}-pc-syllable
 	exit ;;
-    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
 	echo i386-unknown-lynxos${UNAME_RELEASE}
 	exit ;;
     i*86:*DOS:*:*)
@@ -1182,7 +1161,7 @@ EOF
     rs6000:LynxOS:2.*:*)
 	echo rs6000-unknown-lynxos${UNAME_RELEASE}
 	exit ;;
-    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
 	echo powerpc-unknown-lynxos${UNAME_RELEASE}
 	exit ;;
     SM[BE]S:UNIX_SV:*:*)
@@ -1248,6 +1227,9 @@ EOF
     BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
 	echo i586-pc-haiku
 	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
     SX-4:SUPER-UX:*:*)
 	echo sx4-nec-superux${UNAME_RELEASE}
 	exit ;;
@@ -1274,9 +1256,31 @@ EOF
 	exit ;;
     *:Darwin:*:*)
 	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	eval $set_cc_for_build
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
+	    if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		    (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		    grep IS_64BIT_ARCH >/dev/null
+		then
 		    case $UNAME_PROCESSOR in
-	    unknown) UNAME_PROCESSOR=powerpc ;;
+			i386) UNAME_PROCESSOR=x86_64 ;;
+			powerpc) UNAME_PROCESSOR=powerpc64 ;;
 		    esac
+		fi
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # Avoid executing cc on OS X 10.9, as it ships with a stub
+	    # that puts up a graphical alert prompting to install
+	    # developer tools.  Any system running Mac OS X 10.7 or
+	    # later (Darwin 11 and later) is required to have a 64-bit
+	    # processor. This is not true of the ARM version of Darwin
+	    # that Apple uses in portable devices.
+	    UNAME_PROCESSOR=x86_64
+	fi
 	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
 	exit ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
@@ -1290,7 +1294,10 @@ EOF
     *:QNX:*:4*)
 	echo i386-pc-qnx
 	exit ;;
-    NSE-?:NONSTOP_KERNEL:*:*)
+    NEO-?:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;
     NSR-?:NONSTOP_KERNEL:*:*)
@@ -1359,11 +1366,11 @@ EOF
     i*86:AROS:*:*)
 	echo ${UNAME_MACHINE}-pc-aros
 	exit ;;
+    x86_64:VMkernel:*:*)
+	echo ${UNAME_MACHINE}-unknown-esx
+	exit ;;
 esac
 
-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
 eval $set_cc_for_build
 cat >$dummy.c <<EOF
 #ifdef _SEQUENT_

config.sub

@@ -1,44 +1,40 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   Copyright 1992-2013 Free Software Foundation, Inc.
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-#   Free Software Foundation, Inc.
 
-timestamp='2009-04-17'
+timestamp='2013-10-01'
 
-# This file is (in principle) common to ALL GNU software.
+# This file is free software; you can redistribute it and/or modify it
-# The presence of a machine in this file suggests that SOME GNU software
+# under the terms of the GNU General Public License as published by
-# can handle that machine.  It does not imply ALL GNU software can.
+# the Free Software Foundation; either version 3 of the License, or
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# This program is distributed in the hope that it will be useful,
+# This program is distributed in the hope that it will be useful, but
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# GNU General Public License for more details.
+# General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
 
 
-# Please send patches to <config-patches@gnu.org>.  Submit a context
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
-# diff and a properly formatted ChangeLog entry.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
 # If it is invalid, we print an error message on stderr and exit with code 1.
 # Otherwise, we print the canonical config type on stdout and succeed.
 
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
 # that are meaningful with *any* GNU software.
@@ -72,8 +68,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+Copyright 1992-2013 Free Software Foundation, Inc.
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -120,13 +115,18 @@ esac
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
-  uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | \
   kopensolaris*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
     basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
   *)
     basic_machine=`echo $1 | sed 's/-[^-]*$//'`
     if [ $basic_machine != $1 ]
@@ -149,10 +149,13 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple | -axis | -knuth | -cray)
+	-apple | -axis | -knuth | -cray | -microblaze*)
 		os=
 		basic_machine=$1
 		;;
+	-bluegene*)
+		os=-cnk
+		;;
 	-sim | -cisco | -oki | -wec | -winbond)
 		os=
 		basic_machine=$1
@@ -215,6 +218,12 @@ case $os in
 	-isc*)
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
 	-lynx*)
 		os=-lynxos
 		;;
@@ -239,20 +248,28 @@ case $basic_machine in
 	# Some are omitted here because they have special meanings below.
 	1750a | 580 \
 	| a29k \
+	| aarch64 | aarch64_be \
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
-	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+	| arc | arceb \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| be32 | be64 \
 	| bfin \
-	| c4x | clipper \
+	| c4x | c8051 | clipper \
 	| d10v | d30v | dlx | dsp16xx \
+	| epiphany \
 	| fido | fr30 | frv \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
 	| i370 | i860 | i960 | ia64 \
 	| ip2k | iq2000 \
+	| k1om \
+	| le32 | le64 \
 	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
-	| maxq | mb | microblaze | mcore | mep | metag \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
 	| mips | mipsbe | mipseb | mipsel | mipsle \
 	| mips16 \
 	| mips64 | mips64el \
@@ -270,32 +287,45 @@ case $basic_machine in
 	| mipsisa64r2 | mipsisa64r2el \
 	| mipsisa64sb1 | mipsisa64sb1el \
 	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipsr5900 | mipsr5900el \
 	| mipstx39 | mipstx39el \
 	| mn10200 | mn10300 \
 	| moxie \
 	| mt \
 	| msp430 \
-	| nios | nios2 \
+	| nds32 | nds32le | nds32be \
+	| nios | nios2 | nios2eb | nios2el \
 	| ns16k | ns32k \
-	| or32 \
+	| open8 \
+	| or1k | or32 \
 	| pdp10 | pdp11 | pj | pjl \
-	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
 	| pyramid \
+	| rl78 | rx \
 	| score \
 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
-	| spu | strongarm \
+	| spu \
-	| tahoe | thumb | tic4x | tic80 | tron \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
-	| v850 | v850e \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
 	| we32k \
-	| x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
+	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
 		basic_machine=$basic_machine-unknown
 		;;
-	m6811 | m68hc11 | m6812 | m68hc12)
+	c54x)
-		# Motorola 68HC11/12.
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
 		basic_machine=$basic_machine-unknown
 		os=-none
 		;;
@@ -305,6 +335,21 @@ case $basic_machine in
 		basic_machine=mt-unknown
 		;;
 
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
@@ -319,25 +364,31 @@ case $basic_machine in
 	# Recognize the basic CPU types with company name.
 	580-* \
 	| a29k-* \
+	| aarch64-* | aarch64_be-* \
 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
-	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
+	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
-	| c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
-	| clipper-* | craynv-* | cydra-* \
+	| c8051-* | clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
 	| elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
 	| ip2k-* | iq2000-* \
+	| k1om-* \
+	| le32-* | le64-* \
 	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
 	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
 	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
 	| mips16-* \
 	| mips64-* | mips64el-* \
@@ -355,28 +406,34 @@ case $basic_machine in
 	| mipsisa64r2-* | mipsisa64r2el-* \
 	| mipsisa64sb1-* | mipsisa64sb1el-* \
 	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipsr5900-* | mipsr5900el-* \
 	| mipstx39-* | mipstx39el-* \
 	| mmix-* \
 	| mt-* \
 	| msp430-* \
-	| nios-* | nios2-* \
+	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* | nios2eb-* | nios2el-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
-	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
 	| pyramid-* \
-	| romp-* | rs6000-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
-	| tahoe-* | thumb-* \
+	| tahoe-* \
-	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* | tile-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
 	| tron-* \
-	| v850-* | v850e-* | vax-* \
+	| ubicom32-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
 	| we32k-* \
-	| x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
 	| ymp-* \
 	| z8k-* | z80-*)
@@ -467,6 +524,19 @@ case $basic_machine in
 		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
 		os=-linux
 		;;
+	bluegene*)
+		basic_machine=powerpc-ibm
+		os=-cnk
+		;;
+	c54x-*)
+		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
 	c90)
 		basic_machine=c90-cray
 		os=-unicos
@@ -503,7 +573,7 @@ case $basic_machine in
 		basic_machine=craynv-cray
 		os=-unicosmp
 		;;
-	cr16)
+	cr16 | cr16-*)
 		basic_machine=cr16-unknown
 		os=-elf
 		;;
@@ -661,7 +731,6 @@ case $basic_machine in
 	i370-ibm* | ibm*)
 		basic_machine=i370-ibm
 		;;
-# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
 	i*86v32)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
@@ -719,8 +788,15 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
+	microblaze*)
+		basic_machine=microblaze-xilinx
+		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
 	mingw32)
-		basic_machine=i386-pc
+		basic_machine=i686-pc
 		os=-mingw32
 		;;
 	mingw32ce)
@@ -755,10 +831,18 @@ case $basic_machine in
 	ms1-*)
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
+	msys)
+		basic_machine=i686-pc
+		os=-msys
+		;;
 	mvs)
 		basic_machine=i370-ibm
 		os=-mvs
 		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
@@ -823,6 +907,12 @@ case $basic_machine in
 	np1)
 		basic_machine=np1-gould
 		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
@@ -905,9 +995,10 @@ case $basic_machine in
 		;;
 	power)	basic_machine=power-ibm
 		;;
-	ppc)	basic_machine=powerpc-unknown
+	ppc | ppcbe)	basic_machine=powerpc-unknown
 		;;
-	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	ppcle | powerpclittle | ppc-le | powerpc-little)
 		basic_machine=powerpcle-unknown
@@ -932,7 +1023,11 @@ case $basic_machine in
 		basic_machine=i586-unknown
 		os=-pw32
 		;;
-	rdos)
+	rdos | rdos64)
+		basic_machine=x86_64-pc
+		os=-rdos
+		;;
+	rdos32)
 		basic_machine=i386-pc
 		os=-rdos
 		;;
@@ -1001,6 +1096,9 @@ case $basic_machine in
 		basic_machine=i860-stratus
 		os=-sysv4
 		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
 	sun2)
 		basic_machine=m68000-sun
 		;;
@@ -1057,20 +1155,8 @@ case $basic_machine in
 		basic_machine=t90-cray
 		os=-unicos
 		;;
-	tic54x | c54x*)
-		basic_machine=tic54x-unknown
-		os=-coff
-		;;
-	tic55x | c55x*)
-		basic_machine=tic55x-unknown
-		os=-coff
-		;;
-	tic6x | c6x*)
-		basic_machine=tic6x-unknown
-		os=-coff
-		;;
 	tile*)
-		basic_machine=tile-unknown
+		basic_machine=$basic_machine-unknown
 		os=-linux-gnu
 		;;
 	tx39)
@@ -1140,6 +1226,9 @@ case $basic_machine in
 	xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		;;
 	ymp)
 		basic_machine=ymp-cray
 		os=-unicos
@@ -1240,6 +1329,9 @@ case $os in
 	# First match some system type aliases
 	# that might get confused with valid system types.
 	# -solaris* is a basic system type, with this one exception.
+	-auroraux)
+		os=-auroraux
+		;;
 	-solaris1 | -solaris1.*)
 		os=`echo $os | sed -e 's|solaris1|sunos4|'`
 		;;
@@ -1260,22 +1352,23 @@ case $os in
 	# Each alternative MUST END IN A *, to match a version number.
 	# -sysv* is not here because it comes later, after sysvr4.
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
-	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
-	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
-	      | -kopensolaris* \
+	      | -sym* | -kopensolaris* | -plan9* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
 	      | -aos* | -aros* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
-	      | -openbsd* | -solidbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* \
 	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -chorusos* | -chorusrdb* | -cegcc* \
-	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
+	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
@@ -1283,7 +1376,7 @@ case $os in
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops*)
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1407,15 +1500,14 @@ case $os in
 	-aros*)
 		os=-aros
 		;;
-	-kaos*)
-		os=-kaos
-		;;
 	-zvmoe)
 		os=-zvmoe
 		;;
 	-dicos*)
 		os=-dicos
 		;;
+	-nacl*)
+		;;
 	-none)
 		;;
 	*)
@@ -1456,6 +1548,21 @@ case $basic_machine in
 	c4x-* | tic4x-*)
 		os=-coff
 		;;
+	c8051-*)
+		os=-elf
+		;;
+	hexagon-*)
+		os=-elf
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
 	# This must come before the *-dec entry.
 	pdp10-*)
 		os=-tops20
@@ -1474,9 +1581,6 @@ case $basic_machine in
 		;;
 	m68000-sun)
 		os=-sunos3
-		# This also exists in the configure program, but was not the
-		# default.
-		# os=-sunos4
 		;;
 	m68*-cisco)
 		os=-aout
@@ -1490,6 +1594,9 @@ case $basic_machine in
 	mips*-*)
 		os=-elf
 		;;
+	or1k-*)
+		os=-elf
+		;;
 	or32-*)
 		os=-coff
 		;;
@@ -1613,7 +1720,7 @@ case $basic_machine in
 			-sunos*)
 				vendor=sun
 				;;
-			-aix*)
+			-cnk*|-aix*)
 				vendor=ibm
 				;;
 			-beos*)

configure.ac

@@ -5,7 +5,7 @@
 # Configure script for IJG libjpeg
 #
 
-AC_INIT([libjpeg], [7.0])
+AC_INIT([libjpeg], [9.1.0])
 
 # Directory where autotools helper scripts lives.
 AC_CONFIG_AUX_DIR([.])
@@ -21,16 +21,13 @@ AC_CANONICAL_TARGET
 
 # Initialize Automake
 # Don't require all the GNU mandated files
-AM_INIT_AUTOMAKE([-Wall -Werror ansi2knr no-dist foreign])
+AM_INIT_AUTOMAKE([-Wall -Werror no-dist foreign])
 
 # Make --enable-silent-rules the default.
 # To get verbose build output you may configure
 # with --disable-silent-rules or use "make V=1".
 AM_SILENT_RULES([yes])
 
-# This is required when using the de-ANSI-fication feature.
-AM_C_PROTOTYPES
-
 # Add configure option --enable-maintainer-mode which enables
 # dependency checking and generation useful to package maintainers.
 # This is made an option to avoid confusing end users.
@@ -43,6 +40,7 @@ AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
 AC_PROG_LN_S
+AM_PROG_AR
 
 # Check if LD supports linker scripts,
 # and define automake conditional HAVE_LD_VERSION_SCRIPT if so.
@@ -63,7 +61,7 @@ VERS_2 {
         global: sym;
 } VERS_1;
 EOF
-  AC_LINK_IFELSE(AC_LANG_PROGRAM([], []),
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
                  [have_ld_version_script=yes], [have_ld_version_script=no])
   rm -f conftest.map
   LDFLAGS="$save_LDFLAGS"
@@ -72,9 +70,9 @@ fi
 AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
 
 # See if compiler supports prototypes.
-AC_MSG_CHECKING(for function prototypes)
+AC_MSG_CHECKING([for function prototypes])
-AC_CACHE_VAL(ijg_cv_have_prototypes,
+AC_CACHE_VAL([ijg_cv_have_prototypes],
-[AC_TRY_COMPILE([
+[AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 int testfunction (int arg1, int * arg2); /* check prototypes */
 struct methods_struct {		/* check method-pointer declarations */
   int (*error_exit) (char *msgtext);
@@ -85,25 +83,29 @@ int testfunction (int arg1, int * arg2) /* check definitions */
 { return arg2[arg1]; }
 int test2function (void)	/* check void arg list */
 { return 0; }
-], [ ], ijg_cv_have_prototypes=yes, ijg_cv_have_prototypes=no)])
+]])],
-AC_MSG_RESULT($ijg_cv_have_prototypes)
+          [ijg_cv_have_prototypes=yes],
+          [ijg_cv_have_prototypes=no])])
+AC_MSG_RESULT([$ijg_cv_have_prototypes])
 if test $ijg_cv_have_prototypes = yes; then
   AC_DEFINE([HAVE_PROTOTYPES],[1],[Compiler supports function prototypes.])
 else
-  echo Your compiler does not seem to know about function prototypes.
+  AC_MSG_WARN([Your compiler does not seem to know about function prototypes.
-  echo Perhaps it needs a special switch to enable ANSI C mode.
+    Perhaps it needs a special switch to enable ANSI C mode.
-  echo If so, we recommend running configure like this:
+    If so, we recommend running configure like this:
-  echo "   ./configure  CC='cc -switch'"
+       ./configure  CC='cc -switch'
-  echo where -switch is the proper switch.
+    where -switch is the proper switch.])
 fi
 
 # Check header files
-AC_CHECK_HEADERS(stddef.h stdlib.h locale.h)
+AC_CHECK_HEADERS([stddef.h stdlib.h locale.h])
-AC_CHECK_HEADER(string.h, , AC_DEFINE([NEED_BSD_STRINGS],[1],[Compiler has <strings.h> rather than standard <string.h>.]))
+AC_CHECK_HEADER([string.h], [],
+ [AC_DEFINE([NEED_BSD_STRINGS], [1],
+            [Compiler has <strings.h> rather than standard <string.h>.])])
 
 # See whether type size_t is defined in any ANSI-standard places;
 # if not, perhaps it is defined in <sys/types.h>.
-AC_MSG_CHECKING(for size_t)
+AC_MSG_CHECKING([for size_t])
 AC_TRY_COMPILE([
 #ifdef HAVE_STDDEF_H
 #include <stddef.h>
@@ -118,33 +120,42 @@ AC_TRY_COMPILE([
 #include <string.h>
 #endif
 typedef size_t my_size_t;
-], [ my_size_t foovar; ], ijg_size_t_ok=yes,
+],
-[ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"])
+      [ my_size_t foovar; ],
-AC_MSG_RESULT($ijg_size_t_ok)
+      [ijg_size_t_ok=yes],
+      [ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"])
+AC_MSG_RESULT([$ijg_size_t_ok])
 if test "$ijg_size_t_ok" != yes; then
-AC_CHECK_HEADER(sys/types.h, [AC_DEFINE([NEED_SYS_TYPES_H],[1],[Need to include <sys/types.h> in order to obtain size_t.])
+  AC_CHECK_HEADER([sys/types.h],
-AC_EGREP_CPP(size_t, [#include <sys/types.h>],
+     [AC_DEFINE([NEED_SYS_TYPES_H], [1],
-[ijg_size_t_ok="size_t is in sys/types.h"], ijg_size_t_ok=no)],
+                [Need to include <sys/types.h> in order to obtain size_t.])
-ijg_size_t_ok=no)
+      AC_EGREP_CPP([size_t], [#include <sys/types.h>],
-AC_MSG_RESULT($ijg_size_t_ok)
+                   [ijg_size_t_ok="size_t is in sys/types.h"],
-if test "$ijg_size_t_ok" = no; then
+                   [ijg_size_t_ok=no])],
-  echo Type size_t is not defined in any of the usual places.
+     [ijg_size_t_ok=no])
-  echo Try putting '"typedef unsigned int size_t;"' in jconfig.h.
+  AC_MSG_RESULT([$ijg_size_t_ok])
-fi
+  if test "$ijg_size_t_ok" = no; then
+    AC_MSG_WARN([Type size_t is not defined in any of the usual places.
+      Try putting '"typedef unsigned int size_t;"' in jconfig.h.])
+  fi
 fi
 
 # Check compiler characteristics
-AC_MSG_CHECKING(for type unsigned char)
+AC_MSG_CHECKING([for type unsigned char])
-AC_TRY_COMPILE(, [ unsigned char un_char; ],
+AC_TRY_COMPILE([], [ unsigned char un_char; ],
-[AC_MSG_RESULT(yes)
+ [AC_MSG_RESULT(yes)
-AC_DEFINE([HAVE_UNSIGNED_CHAR],[1],[Compiler supports 'unsigned char'.])], AC_MSG_RESULT(no))
+  AC_DEFINE([HAVE_UNSIGNED_CHAR], [1],
-dnl
+            [Compiler supports 'unsigned char'.])],
-AC_MSG_CHECKING(for type unsigned short)
+ [AC_MSG_RESULT(no)])
-AC_TRY_COMPILE(, [ unsigned short un_short; ],
+
-[AC_MSG_RESULT(yes)
+AC_MSG_CHECKING([for type unsigned short])
-AC_DEFINE([HAVE_UNSIGNED_SHORT],[1],[Compiler supports 'unsigned short'.])], AC_MSG_RESULT(no))
+AC_TRY_COMPILE([], [ unsigned short un_short; ],
-dnl
+  [AC_MSG_RESULT(yes)
-AC_MSG_CHECKING(for type void)
+   AC_DEFINE([HAVE_UNSIGNED_SHORT], [1],
+             [Compiler supports 'unsigned short'.])],
+  [AC_MSG_RESULT(no)])
+
+AC_MSG_CHECKING([for type void])
 AC_TRY_COMPILE([
 /* Caution: a C++ compiler will insist on valid prototypes */
 typedef void * void_ptr;	/* check void * */
@@ -166,40 +177,56 @@ void test3function (arg1, arg2)
   arg1 = (void *) locptr;
   (*arg2) (1, 2);		/* check call of fcn returning void */
 }
-], [ ], AC_MSG_RESULT(yes), [AC_MSG_RESULT(no)
+], [ ],
-AC_DEFINE([void],[char],[Define 'void' as 'char' for archaic compilers that don't understand it.])])
+        [AC_MSG_RESULT(yes)],
+        [AC_MSG_RESULT(no)
+         AC_DEFINE([void], [char],
+                   [Define 'void' as 'char' for archaic compilers
+                    that don't understand it.])])
 AC_C_CONST
 
 # Check for non-broken inline under various spellings
-AC_MSG_CHECKING(for inline)
+AC_MSG_CHECKING([for inline])
 ijg_cv_inline=""
-AC_TRY_COMPILE(, [} __inline__ int foo() { return 0; }
+AC_TRY_COMPILE([], [} __inline__ int foo() { return 0; }
 int bar() { return foo();], ijg_cv_inline="__inline__",
-AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
+[AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
 int bar() { return foo();], ijg_cv_inline="__inline",
-AC_TRY_COMPILE(, [} inline int foo() { return 0; }
+[AC_TRY_COMPILE(, [} inline int foo() { return 0; }
-int bar() { return foo();], ijg_cv_inline="inline")))
+int bar() { return foo();], ijg_cv_inline="inline")])])
 AC_MSG_RESULT($ijg_cv_inline)
-AC_DEFINE_UNQUOTED([INLINE],[$ijg_cv_inline],[How to obtain function inlining.])
+AC_DEFINE_UNQUOTED([INLINE], [$ijg_cv_inline],
+                   [How to obtain function inlining.])
 
 # We cannot check for bogus warnings, but at least we can check for errors
-AC_MSG_CHECKING(for broken incomplete types)
+AC_MSG_CHECKING([for broken incomplete types])
-AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], ,
+AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ],
-AC_MSG_RESULT(ok),
+               [],
-[AC_MSG_RESULT(broken)
+               [AC_MSG_RESULT(ok)],
-AC_DEFINE([INCOMPLETE_TYPES_BROKEN],[1],[Compiler does not support pointers to unspecified structures.])])
+               [AC_MSG_RESULT(broken)
+                AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1],
+                          [Compiler does not support pointers to unspecified
+                           structures.])])
 
 # Test whether global names are unique to at least 15 chars
-AC_MSG_CHECKING(for short external names)
+AC_MSG_CHECKING([for short external names])
 AC_TRY_LINK([
 int possibly_duplicate_function () { return 0; }
 int possibly_dupli_function () { return 1; }
-], [ ], AC_MSG_RESULT(ok), [AC_MSG_RESULT(short)
+], [],
-AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES],[1],[Linker requires that global names be unique in first 15 characters.])])
+            [AC_MSG_RESULT(ok)],
+            [AC_MSG_RESULT(short)
+             AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], [1],
+                       [Linker requires that global names be unique in
+                        first 15 characters.])])
 
 # Run-time checks
-AC_MSG_CHECKING(to see if char is signed)
+AC_MSG_CHECKING([to see if char is signed])
 AC_TRY_RUN([
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <stdio.h>
 #ifdef HAVE_PROTOTYPES
 int is_char_signed (int arg)
 #else
@@ -220,13 +247,19 @@ char signed_char_check = (char) (-67);
 int main() {
   exit(is_char_signed((int) signed_char_check));
 }], [AC_MSG_RESULT(no)
-AC_DEFINE([CHAR_IS_UNSIGNED],[1],[Characters are unsigned])], AC_MSG_RESULT(yes),
+     AC_DEFINE([CHAR_IS_UNSIGNED], [1],
-[echo Assuming that char is signed on target machine.
+               [Characters are unsigned])],
-echo If it is unsigned, this will be a little bit inefficient.
+               [AC_MSG_RESULT(yes)],
+[AC_MSG_WARN([Assuming that char is signed on target machine.
+    If it is unsigned, this will be a little bit inefficient.])
 ])
-dnl
+
-AC_MSG_CHECKING(to see if right shift is signed)
+AC_MSG_CHECKING([to see if right shift is signed])
 AC_TRY_RUN([
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <stdio.h>
 #ifdef HAVE_PROTOTYPES
 int is_shifting_signed (long arg)
 #else
@@ -252,20 +285,29 @@ int is_shifting_signed (arg)
 }
 int main() {
   exit(is_shifting_signed(-0x7F7E80B1L));
-}], [AC_MSG_RESULT(no)
+}],
-AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED],[1],[Broken compiler shifts signed values as an unsigned shift.])], AC_MSG_RESULT(yes),
+      [AC_MSG_RESULT(no)
-AC_MSG_RESULT(Assuming that right shift is signed on target machine.))
+       AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], [1],
-dnl
+                 [Broken compiler shifts signed values as an unsigned shift.])],
-AC_MSG_CHECKING(to see if fopen accepts b spec)
+       [AC_MSG_RESULT(yes)],
+       [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)])
+
+AC_MSG_CHECKING([to see if fopen accepts b spec])
 AC_TRY_RUN([
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
 #include <stdio.h>
 int main() {
   if (fopen("conftestdata", "wb") != NULL)
     exit(0);
   exit(1);
-}], AC_MSG_RESULT(yes), [AC_MSG_RESULT(no)
+}],
-AC_DEFINE([DONT_USE_B_MODE],[1],[Don't open files in binary mode.])],
+          [AC_MSG_RESULT(yes)],
-AC_MSG_RESULT(Assuming that it does.))
+          [AC_MSG_RESULT(no)
+           AC_DEFINE([DONT_USE_B_MODE], [1],
+                     [Don't open files in binary mode.])],
+          [AC_MSG_RESULT(Assuming that it does.)])
 
 # Configure libtool
 AC_LIBTOOL_WIN32_DLL
@@ -275,9 +317,9 @@ AC_PROG_LIBTOOL
 # If no "-enable-maxmem", use jmemnobs
 MEMORYMGR='jmemnobs'
 MAXMEM="no"
-AC_ARG_ENABLE(maxmem,
+AC_ARG_ENABLE([maxmem],
 [  --enable-maxmem[=N]     enable use of temp files, set max mem usage to N MB],
-MAXMEM="$enableval")
+[MAXMEM="$enableval"])
 dnl [# support --with-maxmem for backwards compatibility with IJG V5.]
 dnl AC_ARG_WITH(maxmem, , MAXMEM="$withval")
 if test "x$MAXMEM" = xyes; then
@@ -288,30 +330,36 @@ if test "x$MAXMEM" != xno; then
     AC_MSG_ERROR(non-numeric argument to --enable-maxmem)
   fi
   DEFAULTMAXMEM=`expr $MAXMEM \* 1048576`
-AC_DEFINE_UNQUOTED([DEFAULT_MAX_MEM], [${DEFAULTMAXMEM}], [Maximum data space library will allocate.])
+  AC_DEFINE_UNQUOTED([DEFAULT_MAX_MEM], [${DEFAULTMAXMEM}],
-AC_MSG_CHECKING([for 'tmpfile()'])
+                     [Maximum data space library will allocate.])
-AC_TRY_LINK([#include <stdio.h>], [ FILE * tfile = tmpfile(); ],
+  AC_MSG_CHECKING([for 'tmpfile()'])
-[AC_MSG_RESULT(yes)
+  AC_TRY_LINK([#include <stdio.h>], [ FILE * tfile = tmpfile(); ],
-MEMORYMGR='jmemansi'],
+    [AC_MSG_RESULT(yes)
-[AC_MSG_RESULT(no)
+    MEMORYMGR='jmemansi'],
-dnl if tmpfile is not present, must use jmemname.
+    [AC_MSG_RESULT(no)
-MEMORYMGR='jmemname'
+    dnl if tmpfile is not present, must use jmemname.
+    MEMORYMGR='jmemname'
 
-# Test for the need to remove temporary files using a signal handler (for cjpeg/djpeg)
+    # Test for the need to remove temporary files using a signal handler
-AC_DEFINE([NEED_SIGNAL_CATCHER],[1],[Need signal handler to clean up temporary files.])
+    # (for cjpeg/djpeg)
-AC_MSG_CHECKING([for 'mktemp()'])
+    AC_DEFINE([NEED_SIGNAL_CATCHER], [1],
-AC_TRY_LINK(, [ char fname[80]; mktemp(fname); ], AC_MSG_RESULT(yes),
+              [Need signal handler to clean up temporary files.])
-[AC_MSG_RESULT(no)
+    AC_MSG_CHECKING([for 'mktemp()'])
-AC_DEFINE([NO_MKTEMP],[1],[The mktemp() function is not available.])])])
+    AC_TRY_LINK([], [ char fname[80]; mktemp(fname); ],
+                [AC_MSG_RESULT(yes)],
+                [AC_MSG_RESULT(no)
+                 AC_DEFINE([NO_MKTEMP], [1],
+                           [The mktemp() function is not available.])])])
 fi
-AC_SUBST(MEMORYMGR)
+AC_SUBST([MEMORYMGR])
 
-# Extract the library version ID from jpeglib.h.
+# Extract the library version IDs from jpeglib.h.
 AC_MSG_CHECKING([libjpeg version number])
-[JPEG_LIB_VERSION=`sed -e '/^#define JPEG_LIB_VERSION/!d' -e 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' $srcdir/jpeglib.h`]
+[major=`sed -ne 's/^#define JPEG_LIB_VERSION_MAJOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`
-[JPEG_LIB_VERSION="`expr $JPEG_LIB_VERSION / 10`:`expr $JPEG_LIB_VERSION % 10`"]
+minor=`sed -ne 's/^#define JPEG_LIB_VERSION_MINOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`]
+AC_SUBST([JPEG_LIB_VERSION],
+         [`expr $major + $minor`:0:$minor])
 AC_MSG_RESULT([$JPEG_LIB_VERSION])
-AC_SUBST([JPEG_LIB_VERSION])
 
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT

depcomp

@@ -1,10 +1,9 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects
 
-scriptversion=2009-04-28.21; # UTC
+scriptversion=2013-05-30.07; # UTC
 
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
-# Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,7 +27,7 @@ scriptversion=2009-04-28.21; # UTC
 
 case $1 in
   '')
-     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
     exit 1;
     ;;
   -h | --h*)
@@ -40,11 +39,11 @@ as side-effects.
 
 Environment variables:
   depmode     Dependency tracking mode.
-  source      Source file read by `PROGRAMS ARGS'.
+  source      Source file read by 'PROGRAMS ARGS'.
-  object      Object file output by `PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
   DEPDIR      directory where to store dependencies.
   depfile     Dependency file to output.
-  tmpdepfile  Temporary file to use when outputing dependencies.
+  tmpdepfile  Temporary file to use when outputting dependencies.
   libtool     Whether libtool is used (yes/no).
 
 Report bugs to <bug-automake@gnu.org>.
@@ -57,6 +56,66 @@ EOF
     ;;
 esac
 
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'.  Note that this directory component will
+# be either empty or ending with a '/' character.  This is deliberate.
+set_dir_from ()
+{
+  case $1 in
+    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+      *) dir=;;
+  esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+  echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+  # If the compiler actually managed to produce a dependency file,
+  # post-process it.
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form 'foo.o: dependency.h'.
+    # Do two passes, one to just change these to
+    #   $object: dependency.h
+    # and one to simply output
+    #   dependency.h:
+    # which is needed to avoid the deleted-header problem.
+    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+    } > "$depfile"
+    rm -f "$tmpdepfile"
+  else
+    make_dummy_depfile
+  fi
+}
+
+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
   echo "depcomp: Variables source, object and depmode must be set" 1>&2
   exit 1
@@ -69,6 +128,9 @@ tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
 
 rm -f "$tmpdepfile"
 
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
 # Some modes work just like other modes, but use different flags.  We
 # parameterize here, but still list the modes in the big case below,
 # to make depend.m4 easier to write.  Note that we *cannot* use a case
@@ -90,10 +152,24 @@ if test "$depmode" = msvcmsys; then
   # This is just like msvisualcpp but w/o cygpath translation.
   # Just convert the backslash-escaped backslashes to single forward
   # slashes to satisfy depend.m4
-   cygpath_u="sed s,\\\\\\\\,/,g"
+  cygpath_u='sed s,\\\\,/,g'
   depmode=msvisualcpp
 fi
 
+if test "$depmode" = msvc7msys; then
+  # This is just like msvc7 but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+  gccflag=-qmakedep=gcc,-MF
+  depmode=gcc
+fi
+
 case "$depmode" in
 gcc3)
 ## gcc 3 implements dependency tracking that does exactly what
@@ -114,8 +190,7 @@ gcc3)
   done
   "$@"
   stat=$?
-  if test $stat -eq 0; then :
+  if test $stat -ne 0; then
-  else
     rm -f "$tmpdepfile"
     exit $stat
   fi
@@ -123,13 +198,17 @@ gcc3)
   ;;
 
 gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
 ## There are various ways to get dependency output from gcc.  Here's
 ## why we pick this rather obscure method:
 ## - Don't want to use -MD because we'd like the dependencies to end
 ##   up in a subdir.  Having to rename by hand is ugly.
 ##   (We might end up doing this anyway to support other compilers.)
 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-##   -MM, not -M (despite what the docs say).
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
 ## - Using -M directly means running the compiler twice (even worse
 ##   than renaming).
   if test -z "$gccflag"; then
@@ -137,31 +216,31 @@ gcc)
   fi
   "$@" -Wp,"$gccflag$tmpdepfile"
   stat=$?
-  if test $stat -eq 0; then :
+  if test $stat -ne 0; then
-  else
     rm -f "$tmpdepfile"
     exit $stat
   fi
   rm -f "$depfile"
   echo "$object : \\" > "$depfile"
-  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+  # The second -e expression handles DOS-style file names with drive
-## The second -e expression handles DOS-style file names with drive letters.
+  # letters.
   sed -e 's/^[^:]*: / /' \
       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the `deleted header file' problem.
+## This next piece of magic avoids the "deleted header file" problem.
 ## The problem is that when a header file which appears in a .P file
 ## is deleted, the dependency causes make to die (because there is
 ## typically no way to rebuild the header).  We avoid this by adding
 ## dummy dependencies for each header file.  Too bad gcc doesn't do
 ## this for us directly.
-  tr ' ' '
+## Some versions of gcc put a space before the ':'.  On the theory
-' < "$tmpdepfile" |
-## Some versions of gcc put a space before the `:'.  On the theory
 ## that the space means something, we add a space to the output as
-## well.
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -179,8 +258,7 @@ sgi)
     "$@" -MDupdate "$tmpdepfile"
   fi
   stat=$?
-  if test $stat -eq 0; then :
+  if test $stat -ne 0; then
-  else
     rm -f "$tmpdepfile"
     exit $stat
   fi
@@ -188,43 +266,41 @@ sgi)
 
   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
     echo "$object : \\" > "$depfile"
-
     # Clip off the initial element (the dependent).  Don't try to be
     # clever and replace this with sed code, as IRIX sed won't handle
     # lines with more than a fixed number of characters (4096 in
     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like `#:fec' to the end of the
+    # the IRIX cc adds comments like '#:fec' to the end of the
     # dependency line.
-    tr ' ' '
+    tr ' ' "$nl" < "$tmpdepfile" \
-' < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
-    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+      | tr "$nl" ' ' >> "$depfile"
-    tr '
-' ' ' >> "$depfile"
     echo >> "$depfile"
-
     # The second pass generates a dummy entry for each header file.
-    tr ' ' '
+    tr ' ' "$nl" < "$tmpdepfile" \
-' < "$tmpdepfile" \
       | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
       >> "$depfile"
   else
-    # The sourcefile does not contain any dependencies, so just
+    make_dummy_depfile
-    # store a dummy comment line, to avoid errors with the Makefile
-    # "include basename.Plo" scheme.
-    echo "#dummy" > "$depfile"
   fi
   rm -f "$tmpdepfile"
   ;;
 
+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
 aix)
   # The C for AIX Compiler uses -M and outputs the dependencies
   # in a .u file.  In older versions, this file always lives in the
-  # current directory.  Also, the AIX compiler puts `$object:' at the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
   # start of each line; $object doesn't have directory information.
   # Version 6 uses the directory in both cases.
-  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  set_dir_from "$object"
-  test "x$dir" = "x$object" && dir=
+  set_base_from "$object"
-  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
   if test "$libtool" = yes; then
     tmpdepfile1=$dir$base.u
     tmpdepfile2=$base.u
@@ -237,9 +313,7 @@ aix)
     "$@" -M
   fi
   stat=$?
-
+  if test $stat -ne 0; then
-  if test $stat -eq 0; then :
-  else
     rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
     exit $stat
   fi
@@ -248,44 +322,100 @@ aix)
   do
     test -f "$tmpdepfile" && break
   done
-  if test -f "$tmpdepfile"; then
+  aix_post_process_depfile
-    # Each line is of the form `foo.o: dependent.h'.
+  ;;
-    # Do two passes, one to just change these to
+
-    # `$object: dependent.h' and one to simply `dependent.h:'.
+tcc)
-    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
-    # That's a tab and a space in the [].
+  # FIXME: That version still under development at the moment of writing.
-    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+  #        Make that this statement remains true also for stable, released
-  else
+  #        versions.
-    # The sourcefile does not contain any dependencies, so just
+  # It will wrap lines (doesn't matter whether long or short) with a
-    # store a dummy comment line, to avoid errors with the Makefile
+  # trailing '\', as in:
-    # "include basename.Plo" scheme.
+  #
-    echo "#dummy" > "$depfile"
+  #   foo.o : \
+  #    foo.c \
+  #    foo.h \
+  #
+  # It will put a trailing '\' even on the last line, and will use leading
+  # spaces rather than leading tabs (at least since its commit 0394caf7
+  # "Emit spaces for -MD").
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
   fi
+  rm -f "$depfile"
+  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+  # We have to change lines of the first kind to '$object: \'.
+  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+  # And for each line of the second kind, we have to emit a 'dep.h:'
+  # dummy dependency, to avoid the deleted-header problem.
+  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
-icc)
+## The order of this option in the case statement is important, since the
-  # Intel's C compiler understands `-MD -MF file'.  However on
+## shell code in configure will try each of these formats in the order
-  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+## listed in this file.  A plain '-MD' option would be understood by many
-  # ICC 7.0 will fill foo.d with something like
+## compilers, so we must ensure this comes after the gcc and icc options.
-  #    foo.o: sub/foo.c
+pgcc)
-  #    foo.o: sub/foo.h
+  # Portland's C compiler understands '-MD'.
-  # which is wrong.  We want:
+  # Will always output deps to 'file.d' where file is the root name of the
-  #    sub/foo.o: sub/foo.c
+  # source file under compilation, even if file resides in a subdirectory.
-  #    sub/foo.o: sub/foo.h
+  # The object file name does not affect the name of the '.d' file.
-  #    sub/foo.c:
+  # pgcc 10.2 will output
-  #    sub/foo.h:
-  # ICC 7.1 will output
   #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using \ :
+  # and will wrap long lines using '\' :
   #    foo.o: sub/foo.c ... \
   #     sub/foo.h ... \
   #     ...
+  set_dir_from "$object"
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  set_base_from "$source"
+  tmpdepfile=$base.d
 
-  "$@" -MD -MF "$tmpdepfile"
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir=$base.d-lock
+  trap "
+    echo '$0: caught signal, cleaning up...' >&2
+    rmdir '$lockdir'
+    exit 1
+  " 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0; do
+    # mkdir is a portable test-and-set.
+    if mkdir "$lockdir" 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
       stat=$?
-  if test $stat -eq 0; then :
+      # Release the lock.
+      rmdir "$lockdir"
+      break
     else
+      # If the lock is being held by a different process, wait
+      # until the winning process is done or we timeout.
+      while test -d "$lockdir" && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
+
+  if test $stat -ne 0; then
     rm -f "$tmpdepfile"
     exit $stat
   fi
@@ -297,8 +427,8 @@ icc)
   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
   # Some versions of the HPUX 10.20 sed can't process this invocation
   # correctly.  Breaking it into two sed invocations is a workaround.
-  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
-    sed -e 's/$/ :/' >> "$depfile"
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -309,9 +439,8 @@ hp2)
   # 'foo.d', which lands next to the object file, wherever that
   # happens to be.
   # Much of this is similar to the tru64 case; see comments there.
-  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  set_dir_from  "$object"
-  test "x$dir" = "x$object" && dir=
+  set_base_from "$object"
-  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
   if test "$libtool" = yes; then
     tmpdepfile1=$dir$base.d
     tmpdepfile2=$dir.libs/$base.d
@@ -322,8 +451,7 @@ hp2)
     "$@" +Maked
   fi
   stat=$?
-  if test $stat -eq 0; then :
+  if test $stat -ne 0; then
-  else
      rm -f "$tmpdepfile1" "$tmpdepfile2"
      exit $stat
   fi
@@ -333,8 +461,8 @@ hp2)
     test -f "$tmpdepfile" && break
   done
   if test -f "$tmpdepfile"; then
-    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
+    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
-    # Add `dependent.h:' lines.
+    # Add 'dependent.h:' lines.
     sed -ne '2,${
                s/^ *//
                s/ \\*$//
@@ -342,67 +470,97 @@ hp2)
                p
              }' "$tmpdepfile" >> "$depfile"
   else
-    echo "#dummy" > "$depfile"
+    make_dummy_depfile
   fi
   rm -f "$tmpdepfile" "$tmpdepfile2"
   ;;
 
 tru64)
   # The Tru64 compiler uses -MD to generate dependencies as a side
-   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
-   # dependencies in `foo.d' instead, so we check for that too.
+  # dependencies in 'foo.d' instead, so we check for that too.
   # Subdirectories are respected.
-   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  set_dir_from  "$object"
-   test "x$dir" = "x$object" && dir=
+  set_base_from "$object"
-   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
 
   if test "$libtool" = yes; then
-      # With Tru64 cc, shared objects can also be used to make a
+    # Libtool generates 2 separate objects for the 2 libraries.  These
-      # static library.  This mechanism is used in libtool 1.4 series to
+    # two compilations output dependencies in $dir.libs/$base.o.d and
-      # handle both shared and static libraries in a single compilation.
-      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
-      #
-      # With libtool 1.5 this exception was removed, and libtool now
-      # generates 2 separate objects for the 2 libraries.  These two
-      # compilations output dependencies in $dir.libs/$base.o.d and
     # in $dir$base.o.d.  We have to check for both files, because
     # one of the two compilations can be disabled.  We should prefer
     # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
     # automatically cleaned when .libs/ is deleted, while ignoring
     # the former would cause a distcleancheck panic.
-      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
+    tmpdepfile1=$dir$base.o.d          # libtool 1.5
-      tmpdepfile2=$dir$base.o.d          # libtool 1.5
+    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
-      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
+    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
-      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
     "$@" -Wc,-MD
   else
-      tmpdepfile1=$dir$base.o.d
+    tmpdepfile1=$dir$base.d
     tmpdepfile2=$dir$base.d
     tmpdepfile3=$dir$base.d
-      tmpdepfile4=$dir$base.d
     "$@" -MD
   fi
 
   stat=$?
-   if test $stat -eq 0; then :
+  if test $stat -ne 0; then
-   else
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
     exit $stat
   fi
 
-   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
   do
     test -f "$tmpdepfile" && break
   done
-   if test -f "$tmpdepfile"; then
+  # Same post-processing that is required for AIX mode.
-      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+  aix_post_process_depfile
-      # That's a tab and a space in the [].
+  ;;
-      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
   else
-      echo "#dummy" > "$depfile"
+    showIncludes=-showIncludes
   fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test $stat -ne 0; then
     rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/'"$tab"'/
+  G
+  p
+}' >> "$depfile"
+  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
   ;;
 
 #nosideeffect)
@@ -422,7 +580,7 @@ dashmstdout)
     shift
   fi
 
-  # Remove `-o $object'.
+  # Remove '-o $object'.
   IFS=" "
   for arg
   do
@@ -442,18 +600,18 @@ dashmstdout)
   done
 
   test -z "$dashmflag" && dashmflag=-M
-  # Require at least two characters before searching for `:'
+  # Require at least two characters before searching for ':'
   # in the target name.  This is to cope with DOS-style filenames:
-  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
   "$@" $dashmflag |
-    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
+    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
   rm -f "$depfile"
   cat < "$tmpdepfile" > "$depfile"
-  tr ' ' '
+  # Some versions of the HPUX 10.20 sed can't process this sed invocation
-' < "$tmpdepfile" | \
+  # correctly.  Breaking it into two sed invocations is a workaround.
-## Some versions of the HPUX 10.20 sed can't process this invocation
+  tr ' ' "$nl" < "$tmpdepfile" \
-## correctly.  Breaking it into two sed invocations is a workaround.
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -503,12 +661,15 @@ makedepend)
   touch "$tmpdepfile"
   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
   rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
+  # makedepend may prepend the VPATH from the source file name to the object.
-  sed '1,2d' "$tmpdepfile" | tr ' ' '
+  # No need to regex-escape $object, excess matching of '.' is harmless.
-' | \
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
-## Some versions of the HPUX 10.20 sed can't process this invocation
+  # Some versions of the HPUX 10.20 sed can't process the last invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
+  # correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  sed '1,2d' "$tmpdepfile" \
+    | tr ' ' "$nl" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile" "$tmpdepfile".bak
   ;;
 
@@ -525,7 +686,7 @@ cpp)
     shift
   fi
 
-  # Remove `-o $object'.
+  # Remove '-o $object'.
   IFS=" "
   for arg
   do
@@ -544,10 +705,10 @@ cpp)
     esac
   done
 
-  "$@" -E |
+  "$@" -E \
-    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-    sed '$ s: \\$::' > "$tmpdepfile"
+    | sed '$ s: \\$::' > "$tmpdepfile"
   rm -f "$depfile"
   echo "$object : \\" > "$depfile"
   cat < "$tmpdepfile" >> "$depfile"
@@ -594,8 +755,8 @@ msvisualcpp)
   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
   rm -f "$depfile"
   echo "$object : \\" > "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
-  echo "	" >> "$depfile"
+  echo "$tab" >> "$depfile"
   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;

djpeg.1

@@ -1,4 +1,4 @@
-.TH DJPEG 1 "28 March 2009"
+.TH DJPEG 1 "23 November 2013"
 .SH NAME
 djpeg \- decompress a JPEG file to an image file
 .SH SYNOPSIS
@@ -62,9 +62,10 @@ runs noticeably faster in this mode.
 .TP
 .BI \-scale " M/N"
 Scale the output image by a factor M/N.  Currently supported scale factors are
-M/8 with all M from 1 to 16.  If the /N part is omitted, then M specifies the
+M/N with all M from 1 to 16, where N is the source DCT size, which is 8 for
-DCT scaled size to be applied on the given input, which is currently
+baseline JPEG.  If the /N part is omitted, then M specifies the DCT scaled
-equivalent to M/8 scaling, since the source DCT size is currently always 8.
+size to be applied on the given input.  For baseline JPEG this is equivalent
+to M/8 scaling, since the source DCT size for baseline JPEG is 8.
 Scaling is handy if the image is larger than your screen; also,
 .B djpeg
 runs much faster when scaling down the output.
@@ -245,7 +246,7 @@ Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44.
 .SH AUTHOR
 Independent JPEG Group
 .SH BUGS
-To avoid the Unisys LZW patent,
+To avoid the Unisys LZW patent (now expired),
 .B djpeg
 produces uncompressed GIF files.  These are larger than they should be, but
 are readable by standard GIF decoders.

djpeg.c

@@ -2,7 +2,7 @@
  * djpeg.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2009 by Guido Vollbeding.
+ * Modified 2009-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -298,7 +298,7 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
       cinfo->mem->max_memory_to_use = lval * 1000L;
 
     } else if (keymatch(arg, "nosmooth", 3)) {
-      /* Suppress fancy upsampling */
+      /* Suppress fancy upsampling. */
       cinfo->do_fancy_upsampling = FALSE;
 
     } else if (keymatch(arg, "onepass", 3)) {
@@ -327,7 +327,7 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
       /* Scale the output image by a fraction M/N. */
       if (++argn >= argc)	/* advance to next argument */
 	usage();
-      if (sscanf(argv[argn], "%d/%d",
+      if (sscanf(argv[argn], "%u/%u",
 		 &cinfo->scale_num, &cinfo->scale_denom) < 1)
 	usage();
 

filelist.txt

@@ -1,6 +1,6 @@
 IJG JPEG LIBRARY:  FILE LIST
 
-Copyright (C) 1994-2009, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1994-2013, Thomas G. Lane, Guido Vollbeding.
 This file is part of the Independent JPEG Group's software.
 For conditions of distribution and use, see the accompanying README file.
 
@@ -73,7 +73,7 @@ jfdctflt.c	Forward DCT using floating-point arithmetic.
 jchuff.c	Huffman entropy coding.
 jcarith.c	Arithmetic entropy coding.
 jcmarker.c	JPEG marker writing.
-jdatadst.c	Data destination manager for stdio output.
+jdatadst.c	Data destination managers for memory and stdio output.
 
 Decompression side of the library:
 
@@ -95,7 +95,7 @@ jdmerge.c	Merged upsampling/color conversion (faster, lower quality).
 jquant1.c	One-pass color quantization using a fixed-spacing colormap.
 jquant2.c	Two-pass color quantization using a custom-generated colormap.
 		Also handles one-pass quantization to an externally given map.
-jdatasrc.c	Data source manager for stdio input.
+jdatasrc.c	Data source managers for memory and stdio input.
 
 Support files for both compression and decompression:
 
@@ -197,6 +197,8 @@ config.guess
 config.sub
 depcomp
 missing
+ar-lib
+compile
 install-sh	Install shell script for those Unix systems lacking one.
 Makefile.in	Makefile input for configure.
 Makefile.am	Source file for use with Automake to generate Makefile.in.
@@ -206,8 +208,6 @@ mak*.*		Sample makefiles for particular systems.
 jconfig.*	Sample jconfig.h for particular systems.
 libjpeg.map	Script to generate shared library with versioned symbols.
 aclocal.m4	M4 macro definitions for use with Autoconf.
-ansi2knr.c	De-ANSIfier for pre-ANSI C compilers (courtesy of
-		L. Peter Deutsch and Aladdin Enterprises).
 
 Test files (see install.txt for test procedure):
 

install-sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2009-04-28.21; # UTC
+scriptversion=2011-11-20.07; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -35,7 +35,7 @@ scriptversion=2009-04-28.21; # UTC
 # FSF changes to this file are in the public domain.
 #
 # Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
+# 'make' implicit rules from creating a file called install from it
 # when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
@@ -156,6 +156,10 @@ while test $# -ne 0; do
     -s) stripcmd=$stripprog;;
 
     -t) dst_arg=$2
+	# Protect names problematic for 'test' and other utilities.
+	case $dst_arg in
+	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
+	esac
 	shift;;
 
     -T) no_target_directory=true;;
@@ -186,6 +190,10 @@ if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
     fi
     shift # arg
     dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
   done
 fi
 
@@ -194,13 +202,17 @@ if test $# -eq 0; then
     echo "$0: no input file specified." >&2
     exit 1
   fi
-  # It's OK to call `install-sh -d' without argument.
+  # It's OK to call 'install-sh -d' without argument.
   # This can happen when creating conditional directories.
   exit 0
 fi
 
 if test -z "$dir_arg"; then
-  trap '(exit $?); exit' 1 2 13 15
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
 
   # Set umask so as not to create temps with too-generous modes.
   # However, 'strip' requires both read and write access to temps.
@@ -228,9 +240,9 @@ fi
 
 for src
 do
-  # Protect names starting with `-'.
+  # Protect names problematic for 'test' and other utilities.
   case $src in
-    -*) src=./$src;;
+    -* | [=\(\)!]) src=./$src;;
   esac
 
   if test -n "$dir_arg"; then
@@ -252,12 +264,7 @@ do
       echo "$0: no destination specified." >&2
       exit 1
     fi
-
     dst=$dst_arg
-    # Protect names starting with `-'.
-    case $dst in
-      -*) dst=./$dst;;
-    esac
 
     # If destination is a directory, append the input filename; won't work
     # if double slashes aren't ignored.
@@ -347,7 +354,7 @@ do
 	      if test -z "$dir_arg" || {
 		   # Check for POSIX incompatibilities with -m.
 		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-		   # other-writeable bit of parent directory when it shouldn't.
+		   # other-writable bit of parent directory when it shouldn't.
 		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
 		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
 		   case $ls_ld_tmpdir in
@@ -385,7 +392,7 @@ do
 
       case $dstdir in
 	/*) prefix='/';;
-	-*) prefix='./';;
+	[-=\(\)!]*) prefix='./';;
 	*)  prefix='';;
       esac
 
@@ -403,7 +410,7 @@ do
 
       for d
       do
-	test -z "$d" && continue
+	test X"$d" = X && continue
 
 	prefix=$prefix$d
 	if test -d "$prefix"; then

install.txt

@@ -1,6 +1,6 @@
 INSTALLATION INSTRUCTIONS for the Independent JPEG Group's JPEG software
 
-Copyright (C) 1991-2009, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1991-2013, Thomas G. Lane, Guido Vollbeding.
 This file is part of the Independent JPEG Group's software.
 For conditions of distribution and use, see the accompanying README file.
 
@@ -149,7 +149,7 @@ makefile.mc6	jconfig.mc6	MS-DOS, Microsoft C (16-bit only)
 makefile.wat	jconfig.wat	MS-DOS, OS/2, or Windows NT, Watcom C
 makefile.vc	jconfig.vc	Windows NT/95, MS Visual C++
 make*.vc6	jconfig.vc	Windows NT/95, MS Visual C++ 6
-make*.vc9	jconfig.vc	Windows NT/95, MS Visual C++ 2008 (v9)
+make*.v10	jconfig.vc	Windows NT/95, MS Visual C++ 2010 (v10)
 makefile.mms	jconfig.vms	Digital VMS, with MMS software
 makefile.vms	jconfig.vms	Digital VMS, without MMS software
 
@@ -321,9 +321,9 @@ several forms:
 	testimg.jpg	The output of cjpeg testimg.ppm
 	testprog.jpg	Progressive-mode equivalent of testorig.jpg.
 	testimgp.jpg	The output of cjpeg -progressive -optimize testimg.ppm
-(The first- and second-generation .jpg files aren't identical since JPEG is
+(The first- and second-generation .jpg files aren't identical since the
-lossy.)  If you can generate duplicates of the testimg* files then you
+default compression parameters are lossy.)  If you can generate duplicates
-probably have working programs.
+of the testimg* files then you probably have working programs.
 
 With most of the makefiles, "make test" will perform the necessary
 comparisons.
@@ -418,54 +418,58 @@ support as follows:
 	    the directory containing the URT "librle.a" file (typically the
 	    "lib" subdirectory of the URT distribution).
 
-Support for 12-bit-deep pixel data:
+Support for 9-bit to 12-bit deep pixel data:
 
-The JPEG standard allows either 8-bit or 12-bit data precision.  (For color,
+The IJG code currently allows 8, 9, 10, 11, or 12 bits sample data precision.
-this means 8 or 12 bits per channel, of course.)  If you need to work with
+(For color, this means 8 to 12 bits per channel, of course.)  If you need to
-deeper than 8-bit data, you can compile the IJG code for 12-bit operation.
+work with deeper than 8-bit data, you can compile the IJG code for 9-bit to
+12-bit operation.
 To do so:
-  1. In jmorecfg.h, define BITS_IN_JSAMPLE as 12 rather than 8.
+  1. In jmorecfg.h, define BITS_IN_JSAMPLE as 9, 10, 11, or 12 rather than 8.
   2. In jconfig.h, undefine BMP_SUPPORTED, RLE_SUPPORTED, and TARGA_SUPPORTED,
-     because the code for those formats doesn't handle 12-bit data and won't
+     because the code for those formats doesn't handle deeper than 8-bit data
-     even compile.  (The PPM code does work, as explained below.  The GIF
+     and won't even compile.  (The PPM code does work, as explained below.
-     code works too; it scales 8-bit GIF data to and from 12-bit depth
+     The GIF code works too; it scales 8-bit GIF data to and from 12-bit
-     automatically.)
+     depth automatically.)
   3. Compile.  Don't expect "make test" to pass, since the supplied test
      files are for 8-bit data.
 
-Currently, 12-bit support does not work on 16-bit-int machines.
+Currently, 9-bit to 12-bit support does not work on 16-bit-int machines.
 
-Note that a 12-bit version will not read 8-bit JPEG files, nor vice versa;
+Run-time selection and conversion of data precision are currently not
-so you'll want to keep around a regular 8-bit compilation as well.
+supported and may be added later.
-(Run-time selection of data depth, to allow a single copy that does both,
+Exception:  The transcoding part (jpegtran) supports all settings in a
-is possible but would probably slow things down considerably; it's very low
+single instance, since it operates on the level of DCT coefficients and
-on our to-do list.)
+not sample values.
 
-The PPM reader (rdppm.c) can read 12-bit data from either text-format or
+The PPM reader (rdppm.c) can read deeper than 8-bit data from either
-binary-format PPM and PGM files.  Binary-format PPM/PGM files which have a
+text-format or binary-format PPM and PGM files.  Binary-format PPM/PGM files
-maxval greater than 255 are assumed to use 2 bytes per sample, MSB first
+which have a maxval greater than 255 are assumed to use 2 bytes per sample,
-(big-endian order).  As of early 1995, 2-byte binary format is not
+MSB first (big-endian order).  As of early 1995, 2-byte binary format is not
 officially supported by the PBMPLUS library, but it is expected that a
 future release of PBMPLUS will support it.  Note that the PPM reader will
 read files of any maxval regardless of the BITS_IN_JSAMPLE setting; incoming
-data is automatically rescaled to either maxval=255 or maxval=4095 as
+data is automatically rescaled to maxval=MAXJSAMPLE as appropriate for the
-appropriate for the cjpeg bit depth.
+cjpeg bit depth.
 
 The PPM writer (wrppm.c) will normally write 2-byte binary PPM or PGM
-format, maxval 4095, when compiled with BITS_IN_JSAMPLE=12.  Since this
+format, maxval=MAXJSAMPLE, when compiled with BITS_IN_JSAMPLE>8.  Since this
 format is not yet widely supported, you can disable it by compiling wrppm.c
 with PPM_NORAWWORD defined; then the data is scaled down to 8 bits to make a
 standard 1-byte/sample PPM or PGM file.  (Yes, this means still another copy
 of djpeg to keep around.  But hopefully you won't need it for very long.
 Poskanzer's supposed to get that new PBMPLUS release out Real Soon Now.)
 
-Of course, if you are working with 12-bit data, you probably have it stored
+Of course, if you are working with 9-bit to 12-bit data, you probably have
-in some other, nonstandard format.  In that case you'll probably want to
+it stored in some other, nonstandard format.  In that case you'll probably
-write your own I/O modules to read and write your format.
+want to write your own I/O modules to read and write your format.
 
-Note that a 12-bit version of cjpeg always runs in "-optimize" mode, in
+Note:
-order to generate valid Huffman tables.  This is necessary because our
+The standard Huffman tables are only valid for 8-bit data precision.  If
-default Huffman tables only cover 8-bit data.
+you selected more than 8-bit data precision, cjpeg uses arithmetic coding
+by default.  The Huffman encoder normally uses entropy optimization to
+compute usable tables for higher precision.  Otherwise, you'll have to
+supply different default Huffman tables.
 
 Removing code:
 
@@ -848,17 +852,23 @@ with /Oo-.
 Microsoft Windows (all versions), generic comments:
 
 Some Windows system include files define typedef boolean as "unsigned char".
-The IJG code also defines typedef boolean, but we make it "int" by default.
+The IJG code also defines typedef boolean, but we make it an "enum" by default.
 This doesn't affect the IJG programs because we don't import those Windows
 include files.  But if you use the JPEG library in your own program, and some
 of your program's files import one definition of boolean while some import the
 other, you can get all sorts of mysterious problems.  A good preventive step
 is to make the IJG library use "unsigned char" for boolean.  To do that,
 add something like this to your jconfig.h file:
-	/* Define "boolean" as unsigned char, not int, per Windows custom */
+	/* Define "boolean" as unsigned char, not enum, per Windows custom */
 	#ifndef __RPCNDR_H__	/* don't conflict if rpcndr.h already read */
 	typedef unsigned char boolean;
 	#endif
+	#ifndef FALSE		/* in case these macros already exist */
+	#define FALSE	0	/* values of boolean */
+	#endif
+	#ifndef TRUE
+	#define TRUE	1
+	#endif
 	#define HAVE_BOOLEAN	/* prevent jmorecfg.h from redefining it */
 (This is already in jconfig.vc, by the way.)
 
@@ -998,8 +1008,8 @@ model.  makefile.vc is intended for command-line use.  (If you are using
 the Developer Studio environment, you may prefer the DevStudio project
 files; see below.)
 
-v7 adds extern "C" to jpeglib.h.  This avoids the need to put extern "C"
+IJG JPEG 7 adds extern "C" to jpeglib.h.  This avoids the need to put
-{ ... } around #include "jpeglib.h" in your C++ application.
+extern "C" { ... } around #include "jpeglib.h" in your C++ application.
 You can also force VC++ to treat the library as C++ code by renaming
 all the *.c files to *.cpp (and adjusting the makefile to match).
 In this case you also need to define the symbol DONT_USE_EXTERN_C in
@@ -1015,51 +1025,50 @@ as Win32 console applications.  (Even if you only want the library, we
 recommend building the applications so that you can run the self-test.)
 
 To use:
-1. Copy jconfig.vc to jconfig.h, makejdsw.vc6 to jpeg.dsw,
+1. Open the command prompt, change to the main directory and execute the
-   makeadsw.vc6 to apps.dsw, makejmak.vc6 to jpeg.mak,
+   command line
-   makejdep.vc6 to jpeg.dep, makejdsp.vc6 to jpeg.dsp,
+	NMAKE /f makefile.vc  setup-vc6
-   makecmak.vc6 to cjpeg.mak, makecdep.vc6 to cjpeg.dep,
+   This will move jconfig.vc to jconfig.h and makefiles to project files.
-   makecdsp.vc6 to cjpeg.dsp, makedmak.vc6 to djpeg.mak,
+   (Note that the renaming is critical!)
-   makeddep.vc6 to djpeg.dep, makeddsp.vc6 to djpeg.dsp,
+2. Open the workspace file jpeg.dsw, build the library project.
-   maketmak.vc6 to jpegtran.mak, maketdep.vc6 to jpegtran.dep,
-   maketdsp.vc6 to jpegtran.dsp, makermak.vc6 to rdjpgcom.mak,
-   makerdep.vc6 to rdjpgcom.dep, makerdsp.vc6 to rdjpgcom.dsp,
-   makewmak.vc6 to wrjpgcom.mak, makewdep.vc6 to wrjpgcom.dep, and
-   makewdsp.vc6 to wrjpgcom.dsp.  (Note that the renaming is critical!)
-2. Click on jpeg.dsw and apps.dsw to load the project workspaces.
    (If you are using DevStudio more recent than 6.0, you'll probably
    get a message saying that the project files are being updated.)
-3. Build the library project, then the applications project.
+3. Open the workspace file apps.dsw, build the application projects.
-4. Move the application .exe files from `app`\Release to an
+4. To perform the self-test, execute the command line
+	NMAKE /f makefile.vc  test-build
+5. Move the application .exe files from `app`\Release to an
    appropriate location on your path.
-5. To perform the self-test, execute the command line
-	NMAKE /f makefile.vc  test
 
 
-Microsoft Windows, Microsoft Visual C++ 2008 Developer Studio (v9):
+Microsoft Windows, Microsoft Visual C++ 2010 Developer Studio (v10):
 
 We include makefiles that should work as project files in Visual Studio
-2008 or later.  There is a library makefile that builds the IJG library
+2010 or later.  There is a library makefile that builds the IJG library
 as a static Win32 library, and application makefiles that build the sample
 applications as Win32 console applications.  (Even if you only want the
 library, we recommend building the applications so that you can run the
 self-test.)
 
 To use:
-1. Copy jconfig.vc to jconfig.h, makejsln.vc9 to jpeg.sln,
+1. Open the command prompt, change to the main directory and execute the
-   makeasln.vc9 to apps.sln, makejvcp.vc9 to jpeg.vcproj,
+   command line
-   makecvcp.vc9 to cjpeg.vcproj, makedvcp.vc9 to djpeg.vcproj,
+	NMAKE /f makefile.vc  setup-v10
-   maketvcp.vc9 to jpegtran.vcproj, makervcp.vc9 to rdjpgcom.vcproj, and
+   This will move jconfig.vc to jconfig.h and makefiles to project files.
-   makewvcp.vc9 to wrjpgcom.vcproj.  (Note that the renaming is critical!)
+   (Note that the renaming is critical!)
-2. Click on jpeg.sln and apps.sln to load the project solutions.
+2. Open the solution file jpeg.sln, build the library project.
-   (If you are using Visual Studio more recent than 2008 (v9), you'll
+   (If you are using Visual Studio more recent than 2010 (v10), you'll
-   probably get a message saying that the project files are being
+   probably get a message saying that the project files are being updated.)
-   updated.)
+3. Open the solution file apps.sln, build the application projects.
-3. Build the library project, then the applications project.
+4. To perform the self-test, execute the command line
-4. Move the application .exe files from `app`\Release to an
+	NMAKE /f makefile.vc  test-build
+5. Move the application .exe files from `app`\Release to an
    appropriate location on your path.
-5. To perform the self-test, execute the command line
+
-	NMAKE /f makefile.vc  test
+Note:
+There seems to be an optimization bug in the compiler which causes the
+self-test to fail with the color quantization option.
+We have disabled optimization for the file jquant2.c in the library
+project file which causes the self-test to pass properly.
 
 
 OS/2, Borland C++:

jaricom.c

@@ -1,16 +1,16 @@
 /*
  * jaricom.c
  *
- * Developed 1997 by Guido Vollbeding.
+ * Developed 1997-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains probability estimation tables for common use in
  * arithmetic entropy encoding and decoding routines.
  *
- * This data represents Table D.2 in the JPEG spec (ISO/IEC IS 10918-1
+ * This data represents Table D.3 in the JPEG spec (D.2 in the draft),
- * and CCITT Recommendation ITU-T T.81) and Table 24 in the JBIG spec
+ * ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81, and Table 24
- * (ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82).
+ * in the JBIG spec, ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82.
  */
 
 #define JPEG_INTERNALS
@@ -26,123 +26,128 @@
  * implementation (jbig_tab.c).
  */
 
-#define V(a,b,c,d) (((INT32)a << 16) | ((INT32)c << 8) | ((INT32)d << 7) | b)
+#define V(i,a,b,c,d) (((INT32)a << 16) | ((INT32)c << 8) | ((INT32)d << 7) | b)
 
-const INT32 jaritab[113] = {
+const INT32 jpeg_aritab[113+1] = {
 /*
  * Index, Qe_Value, Next_Index_LPS, Next_Index_MPS, Switch_MPS
  */
-/*   0 */  V( 0x5a1d,   1,   1, 1 ),
+  V(   0, 0x5a1d,   1,   1, 1 ),
-/*   1 */  V( 0x2586,  14,   2, 0 ),
+  V(   1, 0x2586,  14,   2, 0 ),
-/*   2 */  V( 0x1114,  16,   3, 0 ),
+  V(   2, 0x1114,  16,   3, 0 ),
-/*   3 */  V( 0x080b,  18,   4, 0 ),
+  V(   3, 0x080b,  18,   4, 0 ),
-/*   4 */  V( 0x03d8,  20,   5, 0 ),
+  V(   4, 0x03d8,  20,   5, 0 ),
-/*   5 */  V( 0x01da,  23,   6, 0 ),
+  V(   5, 0x01da,  23,   6, 0 ),
-/*   6 */  V( 0x00e5,  25,   7, 0 ),
+  V(   6, 0x00e5,  25,   7, 0 ),
-/*   7 */  V( 0x006f,  28,   8, 0 ),
+  V(   7, 0x006f,  28,   8, 0 ),
-/*   8 */  V( 0x0036,  30,   9, 0 ),
+  V(   8, 0x0036,  30,   9, 0 ),
-/*   9 */  V( 0x001a,  33,  10, 0 ),
+  V(   9, 0x001a,  33,  10, 0 ),
-/*  10 */  V( 0x000d,  35,  11, 0 ),
+  V(  10, 0x000d,  35,  11, 0 ),
-/*  11 */  V( 0x0006,   9,  12, 0 ),
+  V(  11, 0x0006,   9,  12, 0 ),
-/*  12 */  V( 0x0003,  10,  13, 0 ),
+  V(  12, 0x0003,  10,  13, 0 ),
-/*  13 */  V( 0x0001,  12,  13, 0 ),
+  V(  13, 0x0001,  12,  13, 0 ),
-/*  14 */  V( 0x5a7f,  15,  15, 1 ),
+  V(  14, 0x5a7f,  15,  15, 1 ),
-/*  15 */  V( 0x3f25,  36,  16, 0 ),
+  V(  15, 0x3f25,  36,  16, 0 ),
-/*  16 */  V( 0x2cf2,  38,  17, 0 ),
+  V(  16, 0x2cf2,  38,  17, 0 ),
-/*  17 */  V( 0x207c,  39,  18, 0 ),
+  V(  17, 0x207c,  39,  18, 0 ),
-/*  18 */  V( 0x17b9,  40,  19, 0 ),
+  V(  18, 0x17b9,  40,  19, 0 ),
-/*  19 */  V( 0x1182,  42,  20, 0 ),
+  V(  19, 0x1182,  42,  20, 0 ),
-/*  20 */  V( 0x0cef,  43,  21, 0 ),
+  V(  20, 0x0cef,  43,  21, 0 ),
-/*  21 */  V( 0x09a1,  45,  22, 0 ),
+  V(  21, 0x09a1,  45,  22, 0 ),
-/*  22 */  V( 0x072f,  46,  23, 0 ),
+  V(  22, 0x072f,  46,  23, 0 ),
-/*  23 */  V( 0x055c,  48,  24, 0 ),
+  V(  23, 0x055c,  48,  24, 0 ),
-/*  24 */  V( 0x0406,  49,  25, 0 ),
+  V(  24, 0x0406,  49,  25, 0 ),
-/*  25 */  V( 0x0303,  51,  26, 0 ),
+  V(  25, 0x0303,  51,  26, 0 ),
-/*  26 */  V( 0x0240,  52,  27, 0 ),
+  V(  26, 0x0240,  52,  27, 0 ),
-/*  27 */  V( 0x01b1,  54,  28, 0 ),
+  V(  27, 0x01b1,  54,  28, 0 ),
-/*  28 */  V( 0x0144,  56,  29, 0 ),
+  V(  28, 0x0144,  56,  29, 0 ),
-/*  29 */  V( 0x00f5,  57,  30, 0 ),
+  V(  29, 0x00f5,  57,  30, 0 ),
-/*  30 */  V( 0x00b7,  59,  31, 0 ),
+  V(  30, 0x00b7,  59,  31, 0 ),
-/*  31 */  V( 0x008a,  60,  32, 0 ),
+  V(  31, 0x008a,  60,  32, 0 ),
-/*  32 */  V( 0x0068,  62,  33, 0 ),
+  V(  32, 0x0068,  62,  33, 0 ),
-/*  33 */  V( 0x004e,  63,  34, 0 ),
+  V(  33, 0x004e,  63,  34, 0 ),
-/*  34 */  V( 0x003b,  32,  35, 0 ),
+  V(  34, 0x003b,  32,  35, 0 ),
-/*  35 */  V( 0x002c,  33,   9, 0 ),
+  V(  35, 0x002c,  33,   9, 0 ),
-/*  36 */  V( 0x5ae1,  37,  37, 1 ),
+  V(  36, 0x5ae1,  37,  37, 1 ),
-/*  37 */  V( 0x484c,  64,  38, 0 ),
+  V(  37, 0x484c,  64,  38, 0 ),
-/*  38 */  V( 0x3a0d,  65,  39, 0 ),
+  V(  38, 0x3a0d,  65,  39, 0 ),
-/*  39 */  V( 0x2ef1,  67,  40, 0 ),
+  V(  39, 0x2ef1,  67,  40, 0 ),
-/*  40 */  V( 0x261f,  68,  41, 0 ),
+  V(  40, 0x261f,  68,  41, 0 ),
-/*  41 */  V( 0x1f33,  69,  42, 0 ),
+  V(  41, 0x1f33,  69,  42, 0 ),
-/*  42 */  V( 0x19a8,  70,  43, 0 ),
+  V(  42, 0x19a8,  70,  43, 0 ),
-/*  43 */  V( 0x1518,  72,  44, 0 ),
+  V(  43, 0x1518,  72,  44, 0 ),
-/*  44 */  V( 0x1177,  73,  45, 0 ),
+  V(  44, 0x1177,  73,  45, 0 ),
-/*  45 */  V( 0x0e74,  74,  46, 0 ),
+  V(  45, 0x0e74,  74,  46, 0 ),
-/*  46 */  V( 0x0bfb,  75,  47, 0 ),
+  V(  46, 0x0bfb,  75,  47, 0 ),
-/*  47 */  V( 0x09f8,  77,  48, 0 ),
+  V(  47, 0x09f8,  77,  48, 0 ),
-/*  48 */  V( 0x0861,  78,  49, 0 ),
+  V(  48, 0x0861,  78,  49, 0 ),
-/*  49 */  V( 0x0706,  79,  50, 0 ),
+  V(  49, 0x0706,  79,  50, 0 ),
-/*  50 */  V( 0x05cd,  48,  51, 0 ),
+  V(  50, 0x05cd,  48,  51, 0 ),
-/*  51 */  V( 0x04de,  50,  52, 0 ),
+  V(  51, 0x04de,  50,  52, 0 ),
-/*  52 */  V( 0x040f,  50,  53, 0 ),
+  V(  52, 0x040f,  50,  53, 0 ),
-/*  53 */  V( 0x0363,  51,  54, 0 ),
+  V(  53, 0x0363,  51,  54, 0 ),
-/*  54 */  V( 0x02d4,  52,  55, 0 ),
+  V(  54, 0x02d4,  52,  55, 0 ),
-/*  55 */  V( 0x025c,  53,  56, 0 ),
+  V(  55, 0x025c,  53,  56, 0 ),
-/*  56 */  V( 0x01f8,  54,  57, 0 ),
+  V(  56, 0x01f8,  54,  57, 0 ),
-/*  57 */  V( 0x01a4,  55,  58, 0 ),
+  V(  57, 0x01a4,  55,  58, 0 ),
-/*  58 */  V( 0x0160,  56,  59, 0 ),
+  V(  58, 0x0160,  56,  59, 0 ),
-/*  59 */  V( 0x0125,  57,  60, 0 ),
+  V(  59, 0x0125,  57,  60, 0 ),
-/*  60 */  V( 0x00f6,  58,  61, 0 ),
+  V(  60, 0x00f6,  58,  61, 0 ),
-/*  61 */  V( 0x00cb,  59,  62, 0 ),
+  V(  61, 0x00cb,  59,  62, 0 ),
-/*  62 */  V( 0x00ab,  61,  63, 0 ),
+  V(  62, 0x00ab,  61,  63, 0 ),
-/*  63 */  V( 0x008f,  61,  32, 0 ),
+  V(  63, 0x008f,  61,  32, 0 ),
-/*  64 */  V( 0x5b12,  65,  65, 1 ),
+  V(  64, 0x5b12,  65,  65, 1 ),
-/*  65 */  V( 0x4d04,  80,  66, 0 ),
+  V(  65, 0x4d04,  80,  66, 0 ),
-/*  66 */  V( 0x412c,  81,  67, 0 ),
+  V(  66, 0x412c,  81,  67, 0 ),
-/*  67 */  V( 0x37d8,  82,  68, 0 ),
+  V(  67, 0x37d8,  82,  68, 0 ),
-/*  68 */  V( 0x2fe8,  83,  69, 0 ),
+  V(  68, 0x2fe8,  83,  69, 0 ),
-/*  69 */  V( 0x293c,  84,  70, 0 ),
+  V(  69, 0x293c,  84,  70, 0 ),
-/*  70 */  V( 0x2379,  86,  71, 0 ),
+  V(  70, 0x2379,  86,  71, 0 ),
-/*  71 */  V( 0x1edf,  87,  72, 0 ),
+  V(  71, 0x1edf,  87,  72, 0 ),
-/*  72 */  V( 0x1aa9,  87,  73, 0 ),
+  V(  72, 0x1aa9,  87,  73, 0 ),
-/*  73 */  V( 0x174e,  72,  74, 0 ),
+  V(  73, 0x174e,  72,  74, 0 ),
-/*  74 */  V( 0x1424,  72,  75, 0 ),
+  V(  74, 0x1424,  72,  75, 0 ),
-/*  75 */  V( 0x119c,  74,  76, 0 ),
+  V(  75, 0x119c,  74,  76, 0 ),
-/*  76 */  V( 0x0f6b,  74,  77, 0 ),
+  V(  76, 0x0f6b,  74,  77, 0 ),
-/*  77 */  V( 0x0d51,  75,  78, 0 ),
+  V(  77, 0x0d51,  75,  78, 0 ),
-/*  78 */  V( 0x0bb6,  77,  79, 0 ),
+  V(  78, 0x0bb6,  77,  79, 0 ),
-/*  79 */  V( 0x0a40,  77,  48, 0 ),
+  V(  79, 0x0a40,  77,  48, 0 ),
-/*  80 */  V( 0x5832,  80,  81, 1 ),
+  V(  80, 0x5832,  80,  81, 1 ),
-/*  81 */  V( 0x4d1c,  88,  82, 0 ),
+  V(  81, 0x4d1c,  88,  82, 0 ),
-/*  82 */  V( 0x438e,  89,  83, 0 ),
+  V(  82, 0x438e,  89,  83, 0 ),
-/*  83 */  V( 0x3bdd,  90,  84, 0 ),
+  V(  83, 0x3bdd,  90,  84, 0 ),
-/*  84 */  V( 0x34ee,  91,  85, 0 ),
+  V(  84, 0x34ee,  91,  85, 0 ),
-/*  85 */  V( 0x2eae,  92,  86, 0 ),
+  V(  85, 0x2eae,  92,  86, 0 ),
-/*  86 */  V( 0x299a,  93,  87, 0 ),
+  V(  86, 0x299a,  93,  87, 0 ),
-/*  87 */  V( 0x2516,  86,  71, 0 ),
+  V(  87, 0x2516,  86,  71, 0 ),
-/*  88 */  V( 0x5570,  88,  89, 1 ),
+  V(  88, 0x5570,  88,  89, 1 ),
-/*  89 */  V( 0x4ca9,  95,  90, 0 ),
+  V(  89, 0x4ca9,  95,  90, 0 ),
-/*  90 */  V( 0x44d9,  96,  91, 0 ),
+  V(  90, 0x44d9,  96,  91, 0 ),
-/*  91 */  V( 0x3e22,  97,  92, 0 ),
+  V(  91, 0x3e22,  97,  92, 0 ),
-/*  92 */  V( 0x3824,  99,  93, 0 ),
+  V(  92, 0x3824,  99,  93, 0 ),
-/*  93 */  V( 0x32b4,  99,  94, 0 ),
+  V(  93, 0x32b4,  99,  94, 0 ),
-/*  94 */  V( 0x2e17,  93,  86, 0 ),
+  V(  94, 0x2e17,  93,  86, 0 ),
-/*  95 */  V( 0x56a8,  95,  96, 1 ),
+  V(  95, 0x56a8,  95,  96, 1 ),
-/*  96 */  V( 0x4f46, 101,  97, 0 ),
+  V(  96, 0x4f46, 101,  97, 0 ),
-/*  97 */  V( 0x47e5, 102,  98, 0 ),
+  V(  97, 0x47e5, 102,  98, 0 ),
-/*  98 */  V( 0x41cf, 103,  99, 0 ),
+  V(  98, 0x41cf, 103,  99, 0 ),
-/*  99 */  V( 0x3c3d, 104, 100, 0 ),
+  V(  99, 0x3c3d, 104, 100, 0 ),
-/* 100 */  V( 0x375e,  99,  93, 0 ),
+  V( 100, 0x375e,  99,  93, 0 ),
-/* 101 */  V( 0x5231, 105, 102, 0 ),
+  V( 101, 0x5231, 105, 102, 0 ),
-/* 102 */  V( 0x4c0f, 106, 103, 0 ),
+  V( 102, 0x4c0f, 106, 103, 0 ),
-/* 103 */  V( 0x4639, 107, 104, 0 ),
+  V( 103, 0x4639, 107, 104, 0 ),
-/* 104 */  V( 0x415e, 103,  99, 0 ),
+  V( 104, 0x415e, 103,  99, 0 ),
-/* 105 */  V( 0x5627, 105, 106, 1 ),
+  V( 105, 0x5627, 105, 106, 1 ),
-/* 106 */  V( 0x50e7, 108, 107, 0 ),
+  V( 106, 0x50e7, 108, 107, 0 ),
-/* 107 */  V( 0x4b85, 109, 103, 0 ),
+  V( 107, 0x4b85, 109, 103, 0 ),
-/* 108 */  V( 0x5597, 110, 109, 0 ),
+  V( 108, 0x5597, 110, 109, 0 ),
-/* 109 */  V( 0x504f, 111, 107, 0 ),
+  V( 109, 0x504f, 111, 107, 0 ),
-/* 110 */  V( 0x5a10, 110, 111, 1 ),
+  V( 110, 0x5a10, 110, 111, 1 ),
-/* 111 */  V( 0x5522, 112, 109, 0 ),
+  V( 111, 0x5522, 112, 109, 0 ),
-/* 112 */  V( 0x59eb, 112, 111, 1 )
+  V( 112, 0x59eb, 112, 111, 1 ),
+/*
+ * This last entry is used for fixed probability estimate of 0.5
+ * as suggested in Section 10.3 Table 5 of ITU-T Rec. T.851.
+ */
+  V( 113, 0x5a1d, 113, 113, 0 )
 };

jcapimin.c

@@ -2,6 +2,7 @@
  * jcapimin.c
  *
  * Copyright (C) 1994-1998, Thomas G. Lane.
+ * Modified 2003-2010 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -73,6 +74,11 @@ jpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize)
     cinfo->ac_huff_tbl_ptrs[i] = NULL;
   }
 
+  /* Must do it here for emit_dqt in case jpeg_write_tables is used */
+  cinfo->block_size = DCTSIZE;
+  cinfo->natural_order = jpeg_natural_order;
+  cinfo->lim_Se = DCTSIZE2-1;
+
   cinfo->script_space = NULL;
 
   cinfo->input_gamma = 1.0;	/* in case application forgets */

jcapistd.c

@@ -2,6 +2,7 @@
  * jcapistd.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -145,7 +146,7 @@ jpeg_write_raw_data (j_compress_ptr cinfo, JSAMPIMAGE data,
     (*cinfo->master->pass_startup) (cinfo);
 
   /* Verify that at least one iMCU row has been passed. */
-  lines_per_iMCU_row = cinfo->max_v_samp_factor * DCTSIZE;
+  lines_per_iMCU_row = cinfo->max_v_samp_factor * cinfo->min_DCT_v_scaled_size;
   if (num_lines < lines_per_iMCU_row)
     ERREXIT(cinfo, JERR_BUFFER_SIZE);
 

jcarith.c

@@ -1,7 +1,7 @@
 /*
  * jcarith.c
  *
- * Developed 1997 by Guido Vollbeding.
+ * Developed 1997-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -40,6 +40,9 @@ typedef struct {
   /* Pointers to statistics areas (these workspaces have image lifespan) */
   unsigned char * dc_stats[NUM_ARITH_TBLS];
   unsigned char * ac_stats[NUM_ARITH_TBLS];
+
+  /* Statistics bin for coding with fixed probability 0.5 */
+  unsigned char fixed_bin[4];
 } arith_entropy_encoder;
 
 typedef arith_entropy_encoder * arith_entropy_ptr;
@@ -48,8 +51,6 @@ typedef arith_entropy_encoder * arith_entropy_ptr;
  * for the statistics area.
  * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least
  * 49 statistics bins for DC, and 245 statistics bins for AC coding.
- * Note that we use one additional AC bin for codings with fixed
- * probability (0.5), thus the minimum number for AC is 246.
  *
  * We use a compact representation with 1 byte per statistics bin,
  * thus the numbers directly represent byte sizes.
@@ -217,17 +218,16 @@ finish_pass (j_compress_ptr cinfo)
 LOCAL(void)
 arith_encode (j_compress_ptr cinfo, unsigned char *st, int val) 
 {
-  extern const INT32 jaritab[];
   register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy;
   register unsigned char nl, nm;
   register INT32 qe, temp;
   register int sv;
 
-  /* Fetch values from our compact representation of Table D.2:
+  /* Fetch values from our compact representation of Table D.3(D.2):
    * Qe values and probability estimation state machine
    */
   sv = *st;
-  qe = jaritab[sv & 0x7F];	/* => Qe_Value */
+  qe = jpeg_aritab[sv & 0x7F];	/* => Qe_Value */
   nl = qe & 0xFF; qe >>= 8;	/* Next_Index_LPS + Switch_MPS */
   nm = qe & 0xFF; qe >>= 8;	/* Next_Index_MPS */
 
@@ -327,16 +327,18 @@ emit_restart (j_compress_ptr cinfo, int restart_num)
   emit_byte(0xFF, cinfo);
   emit_byte(JPEG_RST0 + restart_num, cinfo);
 
+  /* Re-initialize statistics areas */
   for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
     compptr = cinfo->cur_comp_info[ci];
-    /* Re-initialize statistics areas */
+    /* DC needs no table for refinement scan */
-    if (cinfo->progressive_mode == 0 || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
+    if (cinfo->Ss == 0 && cinfo->Ah == 0) {
       MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS);
       /* Reset DC predictions to 0 */
       entropy->last_dc_val[ci] = 0;
       entropy->dc_context[ci] = 0;
     }
-    if (cinfo->progressive_mode == 0 || cinfo->Ss) {
+    /* AC needs no table when not present */
+    if (cinfo->Se) {
       MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS);
     }
   }
@@ -360,7 +362,6 @@ METHODDEF(boolean)
 encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy;
-  JBLOCKROW block;
   unsigned char *st;
   int blkn, ci, tbl;
   int v, v2, m;
@@ -379,14 +380,13 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 
   /* Encode the MCU data blocks */
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    block = MCU_data[blkn];
     ci = cinfo->MCU_membership[blkn];
     tbl = cinfo->cur_comp_info[ci]->dc_tbl_no;
 
     /* Compute the DC value after the required point transform by Al.
      * This is simply an arithmetic right shift.
      */
-    m = IRIGHT_SHIFT((int) ((*block)[0]), cinfo->Al);
+    m = IRIGHT_SHIFT((int) (MCU_data[blkn][0][0]), cinfo->Al);
 
     /* Sections F.1.4.1 & F.1.4.4.1: Encoding of DC coefficients */
 
@@ -427,9 +427,9 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       }
       arith_encode(cinfo, st, 0);
       /* Section F.1.4.4.1.2: Establish dc_context conditioning category */
-      if (m < (int) (((INT32) 1 << cinfo->arith_dc_L[tbl]) >> 1))
+      if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1))
 	entropy->dc_context[ci] = 0;	/* zero diff category */
-      else if (m > (int) (((INT32) 1 << cinfo->arith_dc_U[tbl]) >> 1))
+      else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1))
 	entropy->dc_context[ci] += 8;	/* large diff category */
       /* Figure F.9: Encoding the magnitude bit pattern of v */
       st += 14;
@@ -451,6 +451,7 @@ METHODDEF(boolean)
 encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy;
+  const int * natural_order;
   JBLOCKROW block;
   unsigned char *st;
   int tbl, k, ke;
@@ -467,6 +468,8 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     entropy->restarts_to_go--;
   }
 
+  natural_order = cinfo->natural_order;
+
   /* Encode the MCU data block */
   block = MCU_data[0];
   tbl = cinfo->cur_comp_info[0]->ac_tbl_no;
@@ -474,39 +477,41 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */
 
   /* Establish EOB (end-of-block) index */
-  for (ke = cinfo->Se + 1; ke > 1; ke--)
+  ke = cinfo->Se;
+  do {
     /* We must apply the point transform by Al.  For AC coefficients this
      * is an integer division with rounding towards 0.  To do this portably
      * in C, we shift after obtaining the absolute value.
      */
-    if ((v = (*block)[jpeg_natural_order[ke - 1]]) >= 0) {
+    if ((v = (*block)[natural_order[ke]]) >= 0) {
       if (v >>= cinfo->Al) break;
     } else {
       v = -v;
       if (v >>= cinfo->Al) break;
     }
+  } while (--ke);
 
   /* Figure F.5: Encode_AC_Coefficients */
-  for (k = cinfo->Ss; k < ke; k++) {
+  for (k = cinfo->Ss - 1; k < ke;) {
-    st = entropy->ac_stats[tbl] + 3 * (k - 1);
+    st = entropy->ac_stats[tbl] + 3 * k;
     arith_encode(cinfo, st, 0);		/* EOB decision */
-    entropy->ac_stats[tbl][245] = 0;
     for (;;) {
-      if ((v = (*block)[jpeg_natural_order[k]]) >= 0) {
+      if ((v = (*block)[natural_order[++k]]) >= 0) {
 	if (v >>= cinfo->Al) {
 	  arith_encode(cinfo, st + 1, 1);
-	  arith_encode(cinfo, entropy->ac_stats[tbl] + 245, 0);
+	  arith_encode(cinfo, entropy->fixed_bin, 0);
 	  break;
 	}
       } else {
 	v = -v;
 	if (v >>= cinfo->Al) {
 	  arith_encode(cinfo, st + 1, 1);
-	  arith_encode(cinfo, entropy->ac_stats[tbl] + 245, 1);
+	  arith_encode(cinfo, entropy->fixed_bin, 1);
 	  break;
 	}
       }
-      arith_encode(cinfo, st + 1, 0); st += 3; k++;
+      arith_encode(cinfo, st + 1, 0);
+      st += 3;
     }
     st += 2;
     /* Figure F.8: Encoding the magnitude category of v */
@@ -533,9 +538,9 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     while (m >>= 1)
       arith_encode(cinfo, st, (m & v) ? 1 : 0);
   }
-  /* Encode EOB decision only if k <= cinfo->Se */
+  /* Encode EOB decision only if k < cinfo->Se */
-  if (k <= cinfo->Se) {
+  if (k < cinfo->Se) {
-    st = entropy->ac_stats[tbl] + 3 * (k - 1);
+    st = entropy->ac_stats[tbl] + 3 * k;
     arith_encode(cinfo, st, 1);
   }
 
@@ -545,13 +550,15 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 
 /*
  * MCU encoding for DC successive approximation refinement scan.
+ * Note: we assume such scans can be multi-component,
+ * although the spec is not very clear on the point.
  */
 
 METHODDEF(boolean)
 encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy;
-  unsigned char st[4];
+  unsigned char *st;
   int Al, blkn;
 
   /* Emit restart marker if needed */
@@ -565,11 +572,11 @@ encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     entropy->restarts_to_go--;
   }
 
+  st = entropy->fixed_bin;	/* use fixed probability estimation */
   Al = cinfo->Al;
 
   /* Encode the MCU data blocks */
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    st[0] = 0;	/* use fixed probability estimation */
     /* We simply emit the Al'th bit of the DC coefficient value. */
     arith_encode(cinfo, st, (MCU_data[blkn][0][0] >> Al) & 1);
   }
@@ -586,6 +593,7 @@ METHODDEF(boolean)
 encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy;
+  const int * natural_order;
   JBLOCKROW block;
   unsigned char *st;
   int tbl, k, ke, kex;
@@ -602,6 +610,8 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     entropy->restarts_to_go--;
   }
 
+  natural_order = cinfo->natural_order;
+
   /* Encode the MCU data block */
   block = MCU_data[0];
   tbl = cinfo->cur_comp_info[0]->ac_tbl_no;
@@ -609,21 +619,23 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   /* Section G.1.3.3: Encoding of AC coefficients */
 
   /* Establish EOB (end-of-block) index */
-  for (ke = cinfo->Se + 1; ke > 1; ke--)
+  ke = cinfo->Se;
+  do {
     /* We must apply the point transform by Al.  For AC coefficients this
      * is an integer division with rounding towards 0.  To do this portably
      * in C, we shift after obtaining the absolute value.
      */
-    if ((v = (*block)[jpeg_natural_order[ke - 1]]) >= 0) {
+    if ((v = (*block)[natural_order[ke]]) >= 0) {
       if (v >>= cinfo->Al) break;
     } else {
       v = -v;
       if (v >>= cinfo->Al) break;
     }
+  } while (--ke);
 
   /* Establish EOBx (previous stage end-of-block) index */
-  for (kex = ke; kex > 1; kex--)
+  for (kex = ke; kex > 0; kex--)
-    if ((v = (*block)[jpeg_natural_order[kex - 1]]) >= 0) {
+    if ((v = (*block)[natural_order[kex]]) >= 0) {
       if (v >>= cinfo->Ah) break;
     } else {
       v = -v;
@@ -631,19 +643,18 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     }
 
   /* Figure G.10: Encode_AC_Coefficients_SA */
-  for (k = cinfo->Ss; k < ke; k++) {
+  for (k = cinfo->Ss - 1; k < ke;) {
-    st = entropy->ac_stats[tbl] + 3 * (k - 1);
+    st = entropy->ac_stats[tbl] + 3 * k;
     if (k >= kex)
       arith_encode(cinfo, st, 0);	/* EOB decision */
-    entropy->ac_stats[tbl][245] = 0;
     for (;;) {
-      if ((v = (*block)[jpeg_natural_order[k]]) >= 0) {
+      if ((v = (*block)[natural_order[++k]]) >= 0) {
 	if (v >>= cinfo->Al) {
 	  if (v >> 1)			/* previously nonzero coef */
 	    arith_encode(cinfo, st + 2, (v & 1));
 	  else {			/* newly nonzero coef */
 	    arith_encode(cinfo, st + 1, 1);
-	    arith_encode(cinfo, entropy->ac_stats[tbl] + 245, 0);
+	    arith_encode(cinfo, entropy->fixed_bin, 0);
 	  }
 	  break;
 	}
@@ -654,17 +665,18 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 	    arith_encode(cinfo, st + 2, (v & 1));
 	  else {			/* newly nonzero coef */
 	    arith_encode(cinfo, st + 1, 1);
-	    arith_encode(cinfo, entropy->ac_stats[tbl] + 245, 1);
+	    arith_encode(cinfo, entropy->fixed_bin, 1);
 	  }
 	  break;
 	}
       }
-      arith_encode(cinfo, st + 1, 0); st += 3; k++;
+      arith_encode(cinfo, st + 1, 0);
+      st += 3;
     }
   }
-  /* Encode EOB decision only if k <= cinfo->Se */
+  /* Encode EOB decision only if k < cinfo->Se */
-  if (k <= cinfo->Se) {
+  if (k < cinfo->Se) {
-    st = entropy->ac_stats[tbl] + 3 * (k - 1);
+    st = entropy->ac_stats[tbl] + 3 * k;
     arith_encode(cinfo, st, 1);
   }
 
@@ -680,11 +692,13 @@ METHODDEF(boolean)
 encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy;
-  jpeg_component_info * compptr;
+  const int * natural_order;
   JBLOCKROW block;
   unsigned char *st;
-  int blkn, ci, tbl, k, ke;
+  int tbl, k, ke;
   int v, v2, m;
+  int blkn, ci;
+  jpeg_component_info * compptr;
 
   /* Emit restart marker if needed */
   if (cinfo->restart_interval) {
@@ -697,6 +711,8 @@ encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     entropy->restarts_to_go--;
   }
 
+  natural_order = cinfo->natural_order;
+
   /* Encode the MCU data blocks */
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
     block = MCU_data[blkn];
@@ -744,9 +760,9 @@ encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       }
       arith_encode(cinfo, st, 0);
       /* Section F.1.4.4.1.2: Establish dc_context conditioning category */
-      if (m < (int) (((INT32) 1 << cinfo->arith_dc_L[tbl]) >> 1))
+      if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1))
 	entropy->dc_context[ci] = 0;	/* zero diff category */
-      else if (m > (int) (((INT32) 1 << cinfo->arith_dc_U[tbl]) >> 1))
+      else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1))
 	entropy->dc_context[ci] += 8;	/* large diff category */
       /* Figure F.9: Encoding the magnitude bit pattern of v */
       st += 14;
@@ -756,28 +772,30 @@ encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 
     /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */
 
+    if ((ke = cinfo->lim_Se) == 0) continue;
     tbl = compptr->ac_tbl_no;
 
     /* Establish EOB (end-of-block) index */
-    for (ke = DCTSIZE2; ke > 1; ke--)
+    do {
-      if ((*block)[jpeg_natural_order[ke - 1]]) break;
+      if ((*block)[natural_order[ke]]) break;
+    } while (--ke);
 
     /* Figure F.5: Encode_AC_Coefficients */
-    for (k = 1; k < ke; k++) {
+    for (k = 0; k < ke;) {
-      st = entropy->ac_stats[tbl] + 3 * (k - 1);
+      st = entropy->ac_stats[tbl] + 3 * k;
       arith_encode(cinfo, st, 0);	/* EOB decision */
-      while ((v = (*block)[jpeg_natural_order[k]]) == 0) {
+      while ((v = (*block)[natural_order[++k]]) == 0) {
-	arith_encode(cinfo, st + 1, 0); st += 3; k++;
+	arith_encode(cinfo, st + 1, 0);
+	st += 3;
       }
       arith_encode(cinfo, st + 1, 1);
       /* Figure F.6: Encoding nonzero value v */
       /* Figure F.7: Encoding the sign of v */
-      entropy->ac_stats[tbl][245] = 0;
       if (v > 0) {
-	arith_encode(cinfo, entropy->ac_stats[tbl] + 245, 0);
+	arith_encode(cinfo, entropy->fixed_bin, 0);
       } else {
 	v = -v;
-	arith_encode(cinfo, entropy->ac_stats[tbl] + 245, 1);
+	arith_encode(cinfo, entropy->fixed_bin, 1);
       }
       st += 2;
       /* Figure F.8: Encoding the magnitude category of v */
@@ -804,9 +822,9 @@ encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       while (m >>= 1)
 	arith_encode(cinfo, st, (m & v) ? 1 : 0);
     }
-    /* Encode EOB decision only if k < DCTSIZE2 */
+    /* Encode EOB decision only if k < cinfo->lim_Se */
-    if (k < DCTSIZE2) {
+    if (k < cinfo->lim_Se) {
-      st = entropy->ac_stats[tbl] + 3 * (k - 1);
+      st = entropy->ac_stats[tbl] + 3 * k;
       arith_encode(cinfo, st, 1);
     }
   }
@@ -851,10 +869,11 @@ start_pass (j_compress_ptr cinfo, boolean gather_statistics)
   } else
     entropy->pub.encode_mcu = encode_mcu;
 
+  /* Allocate & initialize requested statistics areas */
   for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
     compptr = cinfo->cur_comp_info[ci];
-    /* Allocate & initialize requested statistics areas */
+    /* DC needs no table for refinement scan */
-    if (cinfo->progressive_mode == 0 || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
+    if (cinfo->Ss == 0 && cinfo->Ah == 0) {
       tbl = compptr->dc_tbl_no;
       if (tbl < 0 || tbl >= NUM_ARITH_TBLS)
 	ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl);
@@ -866,7 +885,8 @@ start_pass (j_compress_ptr cinfo, boolean gather_statistics)
       entropy->last_dc_val[ci] = 0;
       entropy->dc_context[ci] = 0;
     }
-    if (cinfo->progressive_mode == 0 || cinfo->Ss) {
+    /* AC needs no table when not present */
+    if (cinfo->Se) {
       tbl = compptr->ac_tbl_no;
       if (tbl < 0 || tbl >= NUM_ARITH_TBLS)
 	ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl);
@@ -909,7 +929,7 @@ jinit_arith_encoder (j_compress_ptr cinfo)
   entropy = (arith_entropy_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(arith_entropy_encoder));
-  cinfo->entropy = (struct jpeg_entropy_encoder *) entropy;
+  cinfo->entropy = &entropy->pub;
   entropy->pub.start_pass = start_pass;
   entropy->pub.finish_pass = finish_pass;
 
@@ -918,4 +938,7 @@ jinit_arith_encoder (j_compress_ptr cinfo)
     entropy->dc_stats[i] = NULL;
     entropy->ac_stats[i] = NULL;
   }
+
+  /* Initialize index for fixed probability estimation */
+  entropy->fixed_bin[0] = 113;
 }

jccoefct.c

@@ -2,6 +2,7 @@
  * jccoefct.c
  *
  * Copyright (C) 1994-1997, Thomas G. Lane.
+ * Modified 2003-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -183,7 +184,7 @@ compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
 			    ypos, xpos, (JDIMENSION) blockcnt);
 	    if (blockcnt < compptr->MCU_width) {
 	      /* Create some dummy blocks at the right edge of the image. */
-	      jzero_far((void FAR *) coef->MCU_buffer[blkn + blockcnt],
+	      FMEMZERO((void FAR *) coef->MCU_buffer[blkn + blockcnt],
 		       (compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK));
 	      for (bi = blockcnt; bi < compptr->MCU_width; bi++) {
 		coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0];
@@ -191,7 +192,7 @@ compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
 	    }
 	  } else {
 	    /* Create a row of dummy blocks at the bottom of the image. */
-	    jzero_far((void FAR *) coef->MCU_buffer[blkn],
+	    FMEMZERO((void FAR *) coef->MCU_buffer[blkn],
 		     compptr->MCU_width * SIZEOF(JBLOCK));
 	    for (bi = 0; bi < compptr->MCU_width; bi++) {
 	      coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0];
@@ -290,7 +291,7 @@ compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
       if (ndummy > 0) {
 	/* Create dummy blocks at the right edge of the image. */
 	thisblockrow += blocks_across; /* => first dummy block */
-	jzero_far((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK));
+	FMEMZERO((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK));
 	lastDC = thisblockrow[-1][0];
 	for (bi = 0; bi < ndummy; bi++) {
 	  thisblockrow[bi][0] = lastDC;
@@ -309,7 +310,7 @@ compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
 	   block_row++) {
 	thisblockrow = buffer[block_row];
 	lastblockrow = buffer[block_row-1];
-	jzero_far((void FAR *) thisblockrow,
+	FMEMZERO((void FAR *) thisblockrow,
 		 (size_t) (blocks_across * SIZEOF(JBLOCK)));
 	for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) {
 	  lastDC = lastblockrow[h_samp_factor-1][0];

jccolor.c

@@ -2,6 +2,7 @@
  * jccolor.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
+ * Modified 2011-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -28,13 +29,25 @@ typedef my_color_converter * my_cconvert_ptr;
 /**************** RGB -> YCbCr conversion: most common case **************/
 
 /*
- * YCbCr is defined per CCIR 601-1, except that Cb and Cr are
+ * YCbCr is defined per Recommendation ITU-R BT.601-7 (03/2011),
- * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
+ * previously known as Recommendation CCIR 601-1, except that Cb and Cr
- * The conversion equations to be implemented are therefore
+ * are normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
- *	Y  =  0.29900 * R + 0.58700 * G + 0.11400 * B
+ * sRGB (standard RGB color space) is defined per IEC 61966-2-1:1999.
- *	Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B  + CENTERJSAMPLE
+ * sYCC (standard luma-chroma-chroma color space with extended gamut)
- *	Cr =  0.50000 * R - 0.41869 * G - 0.08131 * B  + CENTERJSAMPLE
+ * is defined per IEC 61966-2-1:1999 Amendment A1:2003 Annex F.
- * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
+ * bg-sRGB and bg-sYCC (big gamut standard color spaces)
+ * are defined per IEC 61966-2-1:1999 Amendment A1:2003 Annex G.
+ * Note that the derived conversion coefficients given in some of these
+ * documents are imprecise.  The general conversion equations are
+ *	Y  = Kr * R + (1 - Kr - Kb) * G + Kb * B
+ *	Cb = 0.5 * (B - Y) / (1 - Kb)
+ *	Cr = 0.5 * (R - Y) / (1 - Kr)
+ * With Kr = 0.299 and Kb = 0.114 (derived according to SMPTE RP 177-1993
+ * from the 1953 FCC NTSC primaries and CIE Illuminant C),
+ * the conversion equations to be implemented are therefore
+ *	Y  =  0.299 * R + 0.587 * G + 0.114 * B
+ *	Cb = -0.168735892 * R - 0.331264108 * G + 0.5 * B + CENTERJSAMPLE
+ *	Cr =  0.5 * R - 0.418687589 * G - 0.081312411 * B + CENTERJSAMPLE
  * Note: older versions of the IJG code used a zero offset of MAXJSAMPLE/2,
  * rather than CENTERJSAMPLE, for Cb and Cr.  This gave equal positive and
  * negative swings for Cb/Cr, but meant that grayscale values (Cb=Cr=0)
@@ -48,9 +61,9 @@ typedef my_color_converter * my_cconvert_ptr;
  * For even more speed, we avoid doing any multiplications in the inner loop
  * by precalculating the constants times R,G,B for all possible values.
  * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
- * for 12-bit samples it is still acceptable.  It's not very reasonable for
+ * for 9-bit to 12-bit samples it is still acceptable.  It's not very
- * 16-bit samples, but if you want lossless storage you shouldn't be changing
+ * reasonable for 16-bit samples, but if you want lossless storage you
- * colorspace anyway.
+ * shouldn't be changing colorspace anyway.
  * The CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included
  * in the tables to save adding them separately in the inner loop.
  */
@@ -95,21 +108,21 @@ rgb_ycc_start (j_compress_ptr cinfo)
 				(TABLE_SIZE * SIZEOF(INT32)));
 
   for (i = 0; i <= MAXJSAMPLE; i++) {
-    rgb_ycc_tab[i+R_Y_OFF] = FIX(0.29900) * i;
+    rgb_ycc_tab[i+R_Y_OFF] = FIX(0.299) * i;
-    rgb_ycc_tab[i+G_Y_OFF] = FIX(0.58700) * i;
+    rgb_ycc_tab[i+G_Y_OFF] = FIX(0.587) * i;
-    rgb_ycc_tab[i+B_Y_OFF] = FIX(0.11400) * i     + ONE_HALF;
+    rgb_ycc_tab[i+B_Y_OFF] = FIX(0.114) * i   + ONE_HALF;
-    rgb_ycc_tab[i+R_CB_OFF] = (-FIX(0.16874)) * i;
+    rgb_ycc_tab[i+R_CB_OFF] = (-FIX(0.168735892)) * i;
-    rgb_ycc_tab[i+G_CB_OFF] = (-FIX(0.33126)) * i;
+    rgb_ycc_tab[i+G_CB_OFF] = (-FIX(0.331264108)) * i;
     /* We use a rounding fudge-factor of 0.5-epsilon for Cb and Cr.
      * This ensures that the maximum output will round to MAXJSAMPLE
      * not MAXJSAMPLE+1, and thus that we don't have to range-limit.
      */
-    rgb_ycc_tab[i+B_CB_OFF] = FIX(0.50000) * i    + CBCR_OFFSET + ONE_HALF-1;
+    rgb_ycc_tab[i+B_CB_OFF] = FIX(0.5) * i    + CBCR_OFFSET + ONE_HALF-1;
 /*  B=>Cb and R=>Cr tables are the same
-    rgb_ycc_tab[i+R_CR_OFF] = FIX(0.50000) * i    + CBCR_OFFSET + ONE_HALF-1;
+    rgb_ycc_tab[i+R_CR_OFF] = FIX(0.5) * i    + CBCR_OFFSET + ONE_HALF-1;
 */
-    rgb_ycc_tab[i+G_CR_OFF] = (-FIX(0.41869)) * i;
+    rgb_ycc_tab[i+G_CR_OFF] = (-FIX(0.418687589)) * i;
-    rgb_ycc_tab[i+B_CR_OFF] = (-FIX(0.08131)) * i;
+    rgb_ycc_tab[i+B_CR_OFF] = (-FIX(0.081312411)) * i;
   }
 }
 
@@ -132,8 +145,8 @@ rgb_ycc_convert (j_compress_ptr cinfo,
 		 JDIMENSION output_row, int num_rows)
 {
   my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int r, g, b;
   register INT32 * ctab = cconvert->rgb_ycc_tab;
+  register int r, g, b;
   register JSAMPROW inptr;
   register JSAMPROW outptr0, outptr1, outptr2;
   register JDIMENSION col;
@@ -149,7 +162,6 @@ rgb_ycc_convert (j_compress_ptr cinfo,
       r = GETJSAMPLE(inptr[RGB_RED]);
       g = GETJSAMPLE(inptr[RGB_GREEN]);
       b = GETJSAMPLE(inptr[RGB_BLUE]);
-      inptr += RGB_PIXELSIZE;
       /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations
        * must be too; we do not need an explicit range-limiting operation.
        * Hence the value being shifted is never negative, and we don't
@@ -167,6 +179,7 @@ rgb_ycc_convert (j_compress_ptr cinfo,
       outptr2[col] = (JSAMPLE)
 		((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF])
 		 >> SCALEBITS);
+      inptr += RGB_PIXELSIZE;
     }
   }
 }
@@ -188,8 +201,8 @@ rgb_gray_convert (j_compress_ptr cinfo,
 		  JDIMENSION output_row, int num_rows)
 {
   my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int r, g, b;
   register INT32 * ctab = cconvert->rgb_ycc_tab;
+  register int r, g, b;
   register JSAMPROW inptr;
   register JSAMPROW outptr;
   register JDIMENSION col;
@@ -197,17 +210,16 @@ rgb_gray_convert (j_compress_ptr cinfo,
 
   while (--num_rows >= 0) {
     inptr = *input_buf++;
-    outptr = output_buf[0][output_row];
+    outptr = output_buf[0][output_row++];
-    output_row++;
     for (col = 0; col < num_cols; col++) {
       r = GETJSAMPLE(inptr[RGB_RED]);
       g = GETJSAMPLE(inptr[RGB_GREEN]);
       b = GETJSAMPLE(inptr[RGB_BLUE]);
-      inptr += RGB_PIXELSIZE;
       /* Y */
       outptr[col] = (JSAMPLE)
 		((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
 		 >> SCALEBITS);
+      inptr += RGB_PIXELSIZE;
     }
   }
 }
@@ -227,8 +239,8 @@ cmyk_ycck_convert (j_compress_ptr cinfo,
 		   JDIMENSION output_row, int num_rows)
 {
   my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int r, g, b;
   register INT32 * ctab = cconvert->rgb_ycc_tab;
+  register int r, g, b;
   register JSAMPROW inptr;
   register JSAMPROW outptr0, outptr1, outptr2, outptr3;
   register JDIMENSION col;
@@ -247,7 +259,6 @@ cmyk_ycck_convert (j_compress_ptr cinfo,
       b = MAXJSAMPLE - GETJSAMPLE(inptr[2]);
       /* K passes through as-is */
       outptr3[col] = inptr[3];	/* don't need GETJSAMPLE here */
-      inptr += 4;
       /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations
        * must be too; we do not need an explicit range-limiting operation.
        * Hence the value being shifted is never negative, and we don't
@@ -265,6 +276,49 @@ cmyk_ycck_convert (j_compress_ptr cinfo,
       outptr2[col] = (JSAMPLE)
 		((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF])
 		 >> SCALEBITS);
+      inptr += 4;
+    }
+  }
+}
+
+
+/*
+ * Convert some rows of samples to the JPEG colorspace.
+ * [R,G,B] to [R-G,G,B-G] conversion with modulo calculation
+ * (forward reversible color transform).
+ * This can be seen as an adaption of the general RGB->YCbCr
+ * conversion equation with Kr = Kb = 0, while replacing the
+ * normalization by modulo calculation.
+ */
+
+METHODDEF(void)
+rgb_rgb1_convert (j_compress_ptr cinfo,
+		  JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+		  JDIMENSION output_row, int num_rows)
+{
+  register int r, g, b;
+  register JSAMPROW inptr;
+  register JSAMPROW outptr0, outptr1, outptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->image_width;
+
+  while (--num_rows >= 0) {
+    inptr = *input_buf++;
+    outptr0 = output_buf[0][output_row];
+    outptr1 = output_buf[1][output_row];
+    outptr2 = output_buf[2][output_row];
+    output_row++;
+    for (col = 0; col < num_cols; col++) {
+      r = GETJSAMPLE(inptr[RGB_RED]);
+      g = GETJSAMPLE(inptr[RGB_GREEN]);
+      b = GETJSAMPLE(inptr[RGB_BLUE]);
+      /* Assume that MAXJSAMPLE+1 is a power of 2, so that the MOD
+       * (modulo) operator is equivalent to the bitmask operator AND.
+       */
+      outptr0[col] = (JSAMPLE) ((r - g + CENTERJSAMPLE) & MAXJSAMPLE);
+      outptr1[col] = (JSAMPLE) g;
+      outptr2[col] = (JSAMPLE) ((b - g + CENTERJSAMPLE) & MAXJSAMPLE);
+      inptr += RGB_PIXELSIZE;
     }
   }
 }
@@ -273,7 +327,7 @@ cmyk_ycck_convert (j_compress_ptr cinfo,
 /*
  * Convert some rows of samples to the JPEG colorspace.
  * This version handles grayscale output with no conversion.
- * The source can be either plain grayscale or YCbCr (since Y == gray).
+ * The source can be either plain grayscale or YCC (since Y == gray).
  */
 
 METHODDEF(void)
@@ -281,16 +335,15 @@ grayscale_convert (j_compress_ptr cinfo,
 		   JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
 		   JDIMENSION output_row, int num_rows)
 {
+  int instride = cinfo->input_components;
   register JSAMPROW inptr;
   register JSAMPROW outptr;
   register JDIMENSION col;
   JDIMENSION num_cols = cinfo->image_width;
-  int instride = cinfo->input_components;
 
   while (--num_rows >= 0) {
     inptr = *input_buf++;
-    outptr = output_buf[0][output_row];
+    outptr = output_buf[0][output_row++];
-    output_row++;
     for (col = 0; col < num_cols; col++) {
       outptr[col] = inptr[0];	/* don't need GETJSAMPLE() here */
       inptr += instride;
@@ -299,6 +352,39 @@ grayscale_convert (j_compress_ptr cinfo,
 }
 
 
+/*
+ * Convert some rows of samples to the JPEG colorspace.
+ * No colorspace conversion, but change from interleaved
+ * to separate-planes representation.
+ */
+
+METHODDEF(void)
+rgb_convert (j_compress_ptr cinfo,
+	     JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+	     JDIMENSION output_row, int num_rows)
+{
+  register JSAMPROW inptr;
+  register JSAMPROW outptr0, outptr1, outptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->image_width;
+
+  while (--num_rows >= 0) {
+    inptr = *input_buf++;
+    outptr0 = output_buf[0][output_row];
+    outptr1 = output_buf[1][output_row];
+    outptr2 = output_buf[2][output_row];
+    output_row++;
+    for (col = 0; col < num_cols; col++) {
+      /* We can dispense with GETJSAMPLE() here */
+      outptr0[col] = inptr[RGB_RED];
+      outptr1[col] = inptr[RGB_GREEN];
+      outptr2[col] = inptr[RGB_BLUE];
+      inptr += RGB_PIXELSIZE;
+    }
+  }
+}
+
+
 /*
  * Convert some rows of samples to the JPEG colorspace.
  * This version handles multi-component colorspaces without conversion.
@@ -310,20 +396,20 @@ null_convert (j_compress_ptr cinfo,
 	      JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
 	      JDIMENSION output_row, int num_rows)
 {
+  int ci;
+  register int nc = cinfo->num_components;
   register JSAMPROW inptr;
   register JSAMPROW outptr;
   register JDIMENSION col;
-  register int ci;
-  int nc = cinfo->num_components;
   JDIMENSION num_cols = cinfo->image_width;
 
   while (--num_rows >= 0) {
     /* It seems fastest to make a separate pass for each component. */
     for (ci = 0; ci < nc; ci++) {
-      inptr = *input_buf;
+      inptr = input_buf[0] + ci;
       outptr = output_buf[ci][output_row];
       for (col = 0; col < num_cols; col++) {
-	outptr[col] = inptr[ci]; /* don't need GETJSAMPLE() here */
+	*outptr++ = *inptr;	/* don't need GETJSAMPLE() here */
 	inptr += nc;
       }
     }
@@ -356,7 +442,7 @@ jinit_color_converter (j_compress_ptr cinfo)
   cconvert = (my_cconvert_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_color_converter));
-  cinfo->cconvert = (struct jpeg_color_converter *) cconvert;
+  cinfo->cconvert = &cconvert->pub;
   /* set start_pass to null method until we find out differently */
   cconvert->pub.start_pass = null_method;
 
@@ -368,13 +454,13 @@ jinit_color_converter (j_compress_ptr cinfo)
     break;
 
   case JCS_RGB:
-#if RGB_PIXELSIZE != 3
+  case JCS_BG_RGB:
     if (cinfo->input_components != RGB_PIXELSIZE)
       ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
     break;
-#endif /* else share code with YCbCr */
 
   case JCS_YCbCr:
+  case JCS_BG_YCC:
     if (cinfo->input_components != 3)
       ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
     break;
@@ -391,41 +477,96 @@ jinit_color_converter (j_compress_ptr cinfo)
     break;
   }
 
+  /* Support color transform only for RGB colorspaces */
+  if (cinfo->color_transform &&
+      cinfo->jpeg_color_space != JCS_RGB &&
+      cinfo->jpeg_color_space != JCS_BG_RGB)
+    ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+
   /* Check num_components, set conversion method based on requested space */
   switch (cinfo->jpeg_color_space) {
   case JCS_GRAYSCALE:
     if (cinfo->num_components != 1)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_GRAYSCALE)
+    switch (cinfo->in_color_space) {
+    case JCS_GRAYSCALE:
+    case JCS_YCbCr:
+    case JCS_BG_YCC:
       cconvert->pub.color_convert = grayscale_convert;
-    else if (cinfo->in_color_space == JCS_RGB) {
+      break;
+    case JCS_RGB:
       cconvert->pub.start_pass = rgb_ycc_start;
       cconvert->pub.color_convert = rgb_gray_convert;
-    } else if (cinfo->in_color_space == JCS_YCbCr)
+      break;
-      cconvert->pub.color_convert = grayscale_convert;
+    default:
-    else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+    }
     break;
 
   case JCS_RGB:
+  case JCS_BG_RGB:
     if (cinfo->num_components != 3)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_RGB && RGB_PIXELSIZE == 3)
+    if (cinfo->in_color_space == cinfo->jpeg_color_space) {
-      cconvert->pub.color_convert = null_convert;
+      switch (cinfo->color_transform) {
-    else
+      case JCT_NONE:
+	cconvert->pub.color_convert = rgb_convert;
+	break;
+      case JCT_SUBTRACT_GREEN:
+	cconvert->pub.color_convert = rgb_rgb1_convert;
+	break;
+      default:
+	ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+      }
+    } else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
 
   case JCS_YCbCr:
     if (cinfo->num_components != 3)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_RGB) {
+    switch (cinfo->in_color_space) {
+    case JCS_RGB:
       cconvert->pub.start_pass = rgb_ycc_start;
       cconvert->pub.color_convert = rgb_ycc_convert;
-    } else if (cinfo->in_color_space == JCS_YCbCr)
+      break;
+    case JCS_YCbCr:
       cconvert->pub.color_convert = null_convert;
-    else
+      break;
+    default:
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+    }
+    break;
+
+  case JCS_BG_YCC:
+    if (cinfo->num_components != 3)
+      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
+    switch (cinfo->in_color_space) {
+    case JCS_RGB:
+      /* For conversion from normal RGB input to BG_YCC representation,
+       * the Cb/Cr values are first computed as usual, and then
+       * quantized further after DCT processing by a factor of
+       * 2 in reference to the nominal quantization factor.
+       */
+      /* need quantization scale by factor of 2 after DCT */
+      cinfo->comp_info[1].component_needed = TRUE;
+      cinfo->comp_info[2].component_needed = TRUE;
+      /* compute normal YCC first */
+      cconvert->pub.start_pass = rgb_ycc_start;
+      cconvert->pub.color_convert = rgb_ycc_convert;
+      break;
+    case JCS_YCbCr:
+      /* need quantization scale by factor of 2 after DCT */
+      cinfo->comp_info[1].component_needed = TRUE;
+      cinfo->comp_info[2].component_needed = TRUE;
+      /*FALLTHROUGH*/
+    case JCS_BG_YCC:
+      /* Pass through for BG_YCC input */
+      cconvert->pub.color_convert = null_convert;
+      break;
+    default:
+      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+    }
     break;
 
   case JCS_CMYK:
@@ -440,13 +581,17 @@ jinit_color_converter (j_compress_ptr cinfo)
   case JCS_YCCK:
     if (cinfo->num_components != 4)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_CMYK) {
+    switch (cinfo->in_color_space) {
+    case JCS_CMYK:
       cconvert->pub.start_pass = rgb_ycc_start;
       cconvert->pub.color_convert = cmyk_ycck_convert;
-    } else if (cinfo->in_color_space == JCS_YCCK)
+      break;
+    case JCS_YCCK:
       cconvert->pub.color_convert = null_convert;
-    else
+      break;
+    default:
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+    }
     break;
 
   default:			/* allow null conversion of JCS_UNKNOWN */

jcdctmgr.c

@@ -2,6 +2,7 @@
  * jcdctmgr.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2003-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -25,22 +26,30 @@ typedef struct {
   /* Pointer to the DCT routine actually in use */
   forward_DCT_method_ptr do_dct[MAX_COMPONENTS];
 
-  /* The actual post-DCT divisors --- not identical to the quant table
-   * entries, because of scaling (especially for an unnormalized DCT).
-   * Each table is given in normal array order.
-   */
-  DCTELEM * divisors[NUM_QUANT_TBLS];
-
 #ifdef DCT_FLOAT_SUPPORTED
   /* Same as above for the floating-point case. */
   float_DCT_method_ptr do_float_dct[MAX_COMPONENTS];
-  FAST_FLOAT * float_divisors[NUM_QUANT_TBLS];
 #endif
 } my_fdct_controller;
 
 typedef my_fdct_controller * my_fdct_ptr;
 
 
+/* The allocated post-DCT divisor tables -- big enough for any
+ * supported variant and not identical to the quant table entries,
+ * because of scaling (especially for an unnormalized DCT) --
+ * are pointed to by dct_table in the per-component comp_info
+ * structures.  Each table is given in normal array order.
+ */
+
+typedef union {
+  DCTELEM int_array[DCTSIZE2];
+#ifdef DCT_FLOAT_SUPPORTED
+  FAST_FLOAT float_array[DCTSIZE2];
+#endif
+} divisor_table;
+
+
 /* The current scaled-DCT routines require ISLOW-style divisor tables,
  * so be sure to compile that code if either ISLOW or SCALING is requested.
  */
@@ -71,7 +80,7 @@ forward_DCT (j_compress_ptr cinfo, jpeg_component_info * compptr,
   /* This routine is heavily used, so it's worth coding it tightly. */
   my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct;
   forward_DCT_method_ptr do_dct = fdct->do_dct[compptr->component_index];
-  DCTELEM * divisors = fdct->divisors[compptr->quant_tbl_no];
+  DCTELEM * divisors = (DCTELEM *) compptr->dct_table;
   DCTELEM workspace[DCTSIZE2];	/* work area for FDCT subroutine */
   JDIMENSION bi;
 
@@ -134,7 +143,7 @@ forward_DCT_float (j_compress_ptr cinfo, jpeg_component_info * compptr,
   /* This routine is heavily used, so it's worth coding it tightly. */
   my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct;
   float_DCT_method_ptr do_dct = fdct->do_float_dct[compptr->component_index];
-  FAST_FLOAT * divisors = fdct->float_divisors[compptr->quant_tbl_no];
+  FAST_FLOAT * divisors = (FAST_FLOAT *) compptr->dct_table;
   FAST_FLOAT workspace[DCTSIZE2]; /* work area for FDCT subroutine */
   JDIMENSION bi;
 
@@ -352,22 +361,17 @@ start_pass_fdctmgr (j_compress_ptr cinfo)
 	cinfo->quant_tbl_ptrs[qtblno] == NULL)
       ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno);
     qtbl = cinfo->quant_tbl_ptrs[qtblno];
-    /* Compute divisors for this quant table */
+    /* Create divisor table from quant table */
-    /* We may do this more than once for same table, but it's not a big deal */
     switch (method) {
 #ifdef PROVIDE_ISLOW_TABLES
     case JDCT_ISLOW:
       /* For LL&M IDCT method, divisors are equal to raw quantization
        * coefficients multiplied by 8 (to counteract scaling).
        */
-      if (fdct->divisors[qtblno] == NULL) {
+      dtbl = (DCTELEM *) compptr->dct_table;
-	fdct->divisors[qtblno] = (DCTELEM *)
-	  (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				      DCTSIZE2 * SIZEOF(DCTELEM));
-      }
-      dtbl = fdct->divisors[qtblno];
       for (i = 0; i < DCTSIZE2; i++) {
-	dtbl[i] = ((DCTELEM) qtbl->quantval[i]) << 3;
+	dtbl[i] =
+	  ((DCTELEM) qtbl->quantval[i]) << (compptr->component_needed ? 4 : 3);
       }
       fdct->pub.forward_DCT[ci] = forward_DCT;
       break;
@@ -395,17 +399,12 @@ start_pass_fdctmgr (j_compress_ptr cinfo)
 	};
 	SHIFT_TEMPS
 
-	if (fdct->divisors[qtblno] == NULL) {
+	dtbl = (DCTELEM *) compptr->dct_table;
-	  fdct->divisors[qtblno] = (DCTELEM *)
-	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-					DCTSIZE2 * SIZEOF(DCTELEM));
-	}
-	dtbl = fdct->divisors[qtblno];
 	for (i = 0; i < DCTSIZE2; i++) {
 	  dtbl[i] = (DCTELEM)
 	    DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i],
 				  (INT32) aanscales[i]),
-		    CONST_BITS-3);
+		    compptr->component_needed ? CONST_BITS-4 : CONST_BITS-3);
 	}
       }
       fdct->pub.forward_DCT[ci] = forward_DCT;
@@ -422,25 +421,20 @@ start_pass_fdctmgr (j_compress_ptr cinfo)
 	 * What's actually stored is 1/divisor so that the inner loop can
 	 * use a multiplication rather than a division.
 	 */
-	FAST_FLOAT * fdtbl;
+	FAST_FLOAT * fdtbl = (FAST_FLOAT *) compptr->dct_table;
 	int row, col;
 	static const double aanscalefactor[DCTSIZE] = {
 	  1.0, 1.387039845, 1.306562965, 1.175875602,
 	  1.0, 0.785694958, 0.541196100, 0.275899379
 	};
 
-	if (fdct->float_divisors[qtblno] == NULL) {
-	  fdct->float_divisors[qtblno] = (FAST_FLOAT *)
-	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-					DCTSIZE2 * SIZEOF(FAST_FLOAT));
-	}
-	fdtbl = fdct->float_divisors[qtblno];
 	i = 0;
 	for (row = 0; row < DCTSIZE; row++) {
 	  for (col = 0; col < DCTSIZE; col++) {
 	    fdtbl[i] = (FAST_FLOAT)
-	      (1.0 / (((double) qtbl->quantval[i] *
+	      (1.0 / ((double) qtbl->quantval[i] *
-		       aanscalefactor[row] * aanscalefactor[col] * 8.0)));
+		      aanscalefactor[row] * aanscalefactor[col] *
+		      (compptr->component_needed ? 16.0 : 8.0)));
 	    i++;
 	  }
 	}
@@ -464,19 +458,20 @@ GLOBAL(void)
 jinit_forward_dct (j_compress_ptr cinfo)
 {
   my_fdct_ptr fdct;
-  int i;
+  int ci;
+  jpeg_component_info *compptr;
 
   fdct = (my_fdct_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_fdct_controller));
-  cinfo->fdct = (struct jpeg_forward_dct *) fdct;
+  cinfo->fdct = &fdct->pub;
   fdct->pub.start_pass = start_pass_fdctmgr;
 
-  /* Mark divisor tables unallocated */
+  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-  for (i = 0; i < NUM_QUANT_TBLS; i++) {
+       ci++, compptr++) {
-    fdct->divisors[i] = NULL;
+    /* Allocate a divisor table for each component */
-#ifdef DCT_FLOAT_SUPPORTED
+    compptr->dct_table =
-    fdct->float_divisors[i] = NULL;
+      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-#endif
+				  SIZEOF(divisor_table));
   }
 }

jchuff.c

@@ -2,7 +2,7 @@
  * jchuff.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2006-2009 by Guido Vollbeding.
+ * Modified 2006-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -87,8 +87,6 @@ typedef struct {
   unsigned int restarts_to_go;	/* MCUs left in this restart interval */
   int next_restart_num;		/* next restart number to write (0-7) */
 
-  /* Following four fields used only in sequential mode */
-
   /* Pointers to derived tables (these workspaces have image lifespan) */
   c_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS];
   c_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS];
@@ -114,15 +112,6 @@ typedef struct {
   unsigned int BE;		/* # of buffered correction bits before MCU */
   char * bit_buffer;		/* buffer for correction bits (1 per char) */
   /* packing correction bits tightly would save some space but cost time... */
-
-  /* Pointers to derived tables (these workspaces have image lifespan).
-   * Since any one scan in progressive mode codes only DC or only AC,
-   * we only need one set of tables, not one for DC and one for AC.
-   */
-  c_derived_tbl * derived_tbls[NUM_HUFF_TBLS];
-
-  /* Statistics tables for optimization; again, one set is enough */
-  long * count_ptrs[NUM_HUFF_TBLS];
 } huff_entropy_encoder;
 
 typedef huff_entropy_encoder * huff_entropy_ptr;
@@ -319,20 +308,23 @@ emit_bits_s (working_state * state, unsigned int code, int size)
 /* Emit some bits; return TRUE if successful, FALSE if must suspend */
 {
   /* This routine is heavily used, so it's worth coding tightly. */
-  register INT32 put_buffer = (INT32) code;
+  register INT32 put_buffer;
-  register int put_bits = state->cur.put_bits;
+  register int put_bits;
 
   /* if size is 0, caller used an invalid Huffman table entry */
   if (size == 0)
     ERREXIT(state->cinfo, JERR_HUFF_MISSING_CODE);
 
-  put_buffer &= (((INT32) 1)<<size) - 1; /* mask off any extra bits in code */
+  /* mask off any extra bits in code */
+  put_buffer = ((INT32) code) & ((((INT32) 1) << size) - 1);
 
-  put_bits += size;		/* new number of bits in buffer */
+  /* new number of bits in buffer */
+  put_bits = size + state->cur.put_bits;
 
   put_buffer <<= 24 - put_bits; /* align incoming bits */
 
-  put_buffer |= state->cur.put_buffer; /* and merge with old buffer contents */
+  /* and merge with old buffer contents */
+  put_buffer |= state->cur.put_buffer;
 
   while (put_bits >= 8) {
     int c = (int) ((put_buffer >> 16) & 0xFF);
@@ -358,8 +350,8 @@ emit_bits_e (huff_entropy_ptr entropy, unsigned int code, int size)
 /* Emit some bits, unless we are in gather mode */
 {
   /* This routine is heavily used, so it's worth coding tightly. */
-  register INT32 put_buffer = (INT32) code;
+  register INT32 put_buffer;
-  register int put_bits = entropy->saved.put_bits;
+  register int put_bits;
 
   /* if size is 0, caller used an invalid Huffman table entry */
   if (size == 0)
@@ -368,9 +360,11 @@ emit_bits_e (huff_entropy_ptr entropy, unsigned int code, int size)
   if (entropy->gather_statistics)
     return;			/* do nothing if we're only getting stats */
 
-  put_buffer &= (((INT32) 1)<<size) - 1; /* mask off any extra bits in code */
+  /* mask off any extra bits in code */
+  put_buffer = ((INT32) code) & ((((INT32) 1) << size) - 1);
 
-  put_bits += size;		/* new number of bits in buffer */
+  /* new number of bits in buffer */
+  put_bits = size + entropy->saved.put_bits;
 
   put_buffer <<= 24 - put_bits; /* align incoming bits */
 
@@ -419,12 +413,25 @@ flush_bits_e (huff_entropy_ptr entropy)
 
 INLINE
 LOCAL(void)
-emit_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol)
+emit_dc_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol)
 {
   if (entropy->gather_statistics)
-    entropy->count_ptrs[tbl_no][symbol]++;
+    entropy->dc_count_ptrs[tbl_no][symbol]++;
   else {
-    c_derived_tbl * tbl = entropy->derived_tbls[tbl_no];
+    c_derived_tbl * tbl = entropy->dc_derived_tbls[tbl_no];
+    emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]);
+  }
+}
+
+
+INLINE
+LOCAL(void)
+emit_ac_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol)
+{
+  if (entropy->gather_statistics)
+    entropy->ac_count_ptrs[tbl_no][symbol]++;
+  else {
+    c_derived_tbl * tbl = entropy->ac_derived_tbls[tbl_no];
     emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]);
   }
 }
@@ -467,7 +474,7 @@ emit_eobrun (huff_entropy_ptr entropy)
     if (nbits > 14)
       ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE);
 
-    emit_symbol(entropy, entropy->ac_tbl_no, nbits << 4);
+    emit_ac_symbol(entropy, entropy->ac_tbl_no, nbits << 4);
     if (nbits)
       emit_bits_e(entropy, entropy->EOBRUN, nbits);
 
@@ -541,10 +548,7 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
   register int temp, temp2;
   register int nbits;
-  int blkn, ci;
+  int blkn, ci, tbl;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
-  jpeg_component_info * compptr;
   ISHIFT_TEMPS
 
   entropy->next_output_byte = cinfo->dest->next_output_byte;
@@ -557,21 +561,20 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 
   /* Encode the MCU data blocks */
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    block = MCU_data[blkn];
     ci = cinfo->MCU_membership[blkn];
-    compptr = cinfo->cur_comp_info[ci];
+    tbl = cinfo->cur_comp_info[ci]->dc_tbl_no;
 
     /* Compute the DC value after the required point transform by Al.
      * This is simply an arithmetic right shift.
      */
-    temp2 = IRIGHT_SHIFT((int) ((*block)[0]), Al);
+    temp = IRIGHT_SHIFT((int) (MCU_data[blkn][0][0]), cinfo->Al);
 
     /* DC differences are figured on the point-transformed values. */
-    temp = temp2 - entropy->saved.last_dc_val[ci];
+    temp2 = temp - entropy->saved.last_dc_val[ci];
-    entropy->saved.last_dc_val[ci] = temp2;
+    entropy->saved.last_dc_val[ci] = temp;
 
     /* Encode the DC coefficient difference per section G.1.2.1 */
-    temp2 = temp;
+    temp = temp2;
     if (temp < 0) {
       temp = -temp;		/* temp is abs value of input */
       /* For a negative input, want temp2 = bitwise complement of abs(input) */
@@ -592,7 +595,7 @@ encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       ERREXIT(cinfo, JERR_BAD_DCT_COEF);
 
     /* Count/emit the Huffman-coded symbol for the number of bits */
-    emit_symbol(entropy, compptr->dc_tbl_no, nbits);
+    emit_dc_symbol(entropy, tbl, nbits);
 
     /* Emit that number of bits of the value, if positive, */
     /* or the complement of its magnitude, if negative. */
@@ -626,12 +629,12 @@ METHODDEF(boolean)
 encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
+  const int * natural_order;
+  JBLOCKROW block;
   register int temp, temp2;
   register int nbits;
   register int r, k;
-  int Se = cinfo->Se;
+  int Se, Al;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
 
   entropy->next_output_byte = cinfo->dest->next_output_byte;
   entropy->free_in_buffer = cinfo->dest->free_in_buffer;
@@ -641,6 +644,10 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     if (entropy->restarts_to_go == 0)
       emit_restart_e(entropy, entropy->next_restart_num);
 
+  Se = cinfo->Se;
+  Al = cinfo->Al;
+  natural_order = cinfo->natural_order;
+
   /* Encode the MCU data block */
   block = MCU_data[0];
 
@@ -649,7 +656,7 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   r = 0;			/* r = run length of zeros */
    
   for (k = cinfo->Ss; k <= Se; k++) {
-    if ((temp = (*block)[jpeg_natural_order[k]]) == 0) {
+    if ((temp = (*block)[natural_order[k]]) == 0) {
       r++;
       continue;
     }
@@ -678,7 +685,7 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       emit_eobrun(entropy);
     /* if run length > 15, must emit special run-length-16 codes (0xF0) */
     while (r > 15) {
-      emit_symbol(entropy, entropy->ac_tbl_no, 0xF0);
+      emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0);
       r -= 16;
     }
 
@@ -691,7 +698,7 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       ERREXIT(cinfo, JERR_BAD_DCT_COEF);
 
     /* Count/emit Huffman symbol for run length / number of bits */
-    emit_symbol(entropy, entropy->ac_tbl_no, (r << 4) + nbits);
+    emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + nbits);
 
     /* Emit that number of bits of the value, if positive, */
     /* or the complement of its magnitude, if negative. */
@@ -725,18 +732,15 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 
 /*
  * MCU encoding for DC successive approximation refinement scan.
- * Note: we assume such scans can be multi-component, although the spec
+ * Note: we assume such scans can be multi-component,
- * is not very clear on the point.
+ * although the spec is not very clear on the point.
  */
 
 METHODDEF(boolean)
 encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  register int temp;
+  int Al, blkn;
-  int blkn;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
 
   entropy->next_output_byte = cinfo->dest->next_output_byte;
   entropy->free_in_buffer = cinfo->dest->free_in_buffer;
@@ -746,13 +750,12 @@ encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     if (entropy->restarts_to_go == 0)
       emit_restart_e(entropy, entropy->next_restart_num);
 
+  Al = cinfo->Al;
+
   /* Encode the MCU data blocks */
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    block = MCU_data[blkn];
-
     /* We simply emit the Al'th bit of the DC coefficient value. */
-    temp = (*block)[0];
+    emit_bits_e(entropy, (unsigned int) (MCU_data[blkn][0][0] >> Al), 1);
-    emit_bits_e(entropy, (unsigned int) (temp >> Al), 1);
   }
 
   cinfo->dest->next_output_byte = entropy->next_output_byte;
@@ -780,14 +783,14 @@ METHODDEF(boolean)
 encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
+  const int * natural_order;
+  JBLOCKROW block;
   register int temp;
   register int r, k;
+  int Se, Al;
   int EOB;
   char *BR_buffer;
   unsigned int BR;
-  int Se = cinfo->Se;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
   int absvalues[DCTSIZE2];
 
   entropy->next_output_byte = cinfo->dest->next_output_byte;
@@ -798,6 +801,10 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     if (entropy->restarts_to_go == 0)
       emit_restart_e(entropy, entropy->next_restart_num);
 
+  Se = cinfo->Se;
+  Al = cinfo->Al;
+  natural_order = cinfo->natural_order;
+
   /* Encode the MCU data block */
   block = MCU_data[0];
 
@@ -806,7 +813,7 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
    */
   EOB = 0;
   for (k = cinfo->Ss; k <= Se; k++) {
-    temp = (*block)[jpeg_natural_order[k]];
+    temp = (*block)[natural_order[k]];
     /* We must apply the point transform by Al.  For AC coefficients this
      * is an integer division with rounding towards 0.  To do this portably
      * in C, we shift after obtaining the absolute value.
@@ -836,7 +843,7 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       /* emit any pending EOBRUN and the BE correction bits */
       emit_eobrun(entropy);
       /* Emit ZRL */
-      emit_symbol(entropy, entropy->ac_tbl_no, 0xF0);
+      emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0);
       r -= 16;
       /* Emit buffered correction bits that must be associated with ZRL */
       emit_buffered_bits(entropy, BR_buffer, BR);
@@ -859,10 +866,10 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     emit_eobrun(entropy);
 
     /* Count/emit Huffman symbol for run length / number of bits */
-    emit_symbol(entropy, entropy->ac_tbl_no, (r << 4) + 1);
+    emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + 1);
 
     /* Emit output bit for newly-nonzero coef */
-    temp = ((*block)[jpeg_natural_order[k]] < 0) ? 0 : 1;
+    temp = ((*block)[natural_order[k]] < 0) ? 0 : 1;
     emit_bits_e(entropy, (unsigned int) temp, 1);
 
     /* Emit buffered correction bits that must be associated with this code */
@@ -908,7 +915,9 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
 {
   register int temp, temp2;
   register int nbits;
-  register int k, r, i;
+  register int r, k;
+  int Se = state->cinfo->lim_Se;
+  const int * natural_order = state->cinfo->natural_order;
 
   /* Encode the DC coefficient difference per section F.1.2.1 */
 
@@ -947,8 +956,8 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
 
   r = 0;			/* r = run length of zeros */
 
-  for (k = 1; k < DCTSIZE2; k++) {
+  for (k = 1; k <= Se; k++) {
-    if ((temp = block[jpeg_natural_order[k]]) == 0) {
+    if ((temp2 = block[natural_order[k]]) == 0) {
       r++;
     } else {
       /* if run length > 15, must emit special run-length-16 codes (0xF0) */
@@ -958,7 +967,7 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
 	r -= 16;
       }
 
-      temp2 = temp;
+      temp = temp2;
       if (temp < 0) {
 	temp = -temp;		/* temp is abs value of input */
 	/* This code assumes we are on a two's complement machine */
@@ -974,8 +983,8 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
 	ERREXIT(state->cinfo, JERR_BAD_DCT_COEF);
 
       /* Emit Huffman symbol for run length / number of bits */
-      i = (r << 4) + nbits;
+      temp = (r << 4) + nbits;
-      if (! emit_bits_s(state, actbl->ehufco[i], actbl->ehufsi[i]))
+      if (! emit_bits_s(state, actbl->ehufco[temp], actbl->ehufsi[temp]))
 	return FALSE;
 
       /* Emit that number of bits of the value, if positive, */
@@ -1112,7 +1121,9 @@ htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
 {
   register int temp;
   register int nbits;
-  register int k, r;
+  register int r, k;
+  int Se = cinfo->lim_Se;
+  const int * natural_order = cinfo->natural_order;
 
   /* Encode the DC coefficient difference per section F.1.2.1 */
 
@@ -1139,8 +1150,8 @@ htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
 
   r = 0;			/* r = run length of zeros */
 
-  for (k = 1; k < DCTSIZE2; k++) {
+  for (k = 1; k <= Se; k++) {
-    if ((temp = block[jpeg_natural_order[k]]) == 0) {
+    if ((temp = block[natural_order[k]]) == 0) {
       r++;
     } else {
       /* if run length > 15, must emit special run-length-16 codes (0xF0) */
@@ -1383,63 +1394,44 @@ METHODDEF(void)
 finish_pass_gather (j_compress_ptr cinfo)
 {
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int ci, dctbl, actbl, tbl;
+  int ci, tbl;
   jpeg_component_info * compptr;
   JHUFF_TBL **htblptr;
   boolean did_dc[NUM_HUFF_TBLS];
   boolean did_ac[NUM_HUFF_TBLS];
-  boolean did[NUM_HUFF_TBLS];
 
   /* It's important not to apply jpeg_gen_optimal_table more than once
    * per table, because it clobbers the input frequency counts!
    */
-  if (cinfo->progressive_mode) {
+  if (cinfo->progressive_mode)
     /* Flush out buffered data (all we care about is counting the EOB symbol) */
     emit_eobrun(entropy);
 
-    MEMZERO(did, SIZEOF(did));
-
-    for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-      compptr = cinfo->cur_comp_info[ci];
-      if (cinfo->Ss == 0) {
-	if (cinfo->Ah != 0)	/* DC refinement needs no table */
-	  continue;
-	tbl = compptr->dc_tbl_no;
-      } else {
-	tbl = compptr->ac_tbl_no;
-      }
-      if (! did[tbl]) {
-	if (cinfo->Ss == 0)
-	  htblptr = & cinfo->dc_huff_tbl_ptrs[tbl];
-	else
-	  htblptr = & cinfo->ac_huff_tbl_ptrs[tbl];
-	if (*htblptr == NULL)
-	  *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-	jpeg_gen_optimal_table(cinfo, *htblptr, entropy->count_ptrs[tbl]);
-	did[tbl] = TRUE;
-      }
-    }
-  } else {
   MEMZERO(did_dc, SIZEOF(did_dc));
   MEMZERO(did_ac, SIZEOF(did_ac));
 
   for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
     compptr = cinfo->cur_comp_info[ci];
-      dctbl = compptr->dc_tbl_no;
+    /* DC needs no table for refinement scan */
-      actbl = compptr->ac_tbl_no;
+    if (cinfo->Ss == 0 && cinfo->Ah == 0) {
-      if (! did_dc[dctbl]) {
+      tbl = compptr->dc_tbl_no;
-	htblptr = & cinfo->dc_huff_tbl_ptrs[dctbl];
+      if (! did_dc[tbl]) {
+	htblptr = & cinfo->dc_huff_tbl_ptrs[tbl];
 	if (*htblptr == NULL)
 	  *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-	jpeg_gen_optimal_table(cinfo, *htblptr, entropy->dc_count_ptrs[dctbl]);
+	jpeg_gen_optimal_table(cinfo, *htblptr, entropy->dc_count_ptrs[tbl]);
-	did_dc[dctbl] = TRUE;
+	did_dc[tbl] = TRUE;
       }
-      if (! did_ac[actbl]) {
+    }
-	htblptr = & cinfo->ac_huff_tbl_ptrs[actbl];
+    /* AC needs no table when not present */
+    if (cinfo->Se) {
+      tbl = compptr->ac_tbl_no;
+      if (! did_ac[tbl]) {
+	htblptr = & cinfo->ac_huff_tbl_ptrs[tbl];
 	if (*htblptr == NULL)
 	  *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-	jpeg_gen_optimal_table(cinfo, *htblptr, entropy->ac_count_ptrs[actbl]);
+	jpeg_gen_optimal_table(cinfo, *htblptr, entropy->ac_count_ptrs[tbl]);
-	did_ac[actbl] = TRUE;
+	did_ac[tbl] = TRUE;
       }
     }
   }
@@ -1456,7 +1448,7 @@ METHODDEF(void)
 start_pass_huff (j_compress_ptr cinfo, boolean gather_statistics)
 {
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int ci, dctbl, actbl, tbl;
+  int ci, tbl;
   jpeg_component_info * compptr;
 
   if (gather_statistics)
@@ -1489,42 +1481,8 @@ start_pass_huff (j_compress_ptr cinfo, boolean gather_statistics)
       }
     }
 
-    /* Only DC coefficients may be interleaved, so cinfo->comps_in_scan = 1
-     * for AC coefficients.
-     */
-    for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-      compptr = cinfo->cur_comp_info[ci];
-      /* Initialize DC predictions to 0 */
-      entropy->saved.last_dc_val[ci] = 0;
-      /* Get table index */
-      if (cinfo->Ss == 0) {
-	if (cinfo->Ah != 0)	/* DC refinement needs no table */
-	  continue;
-	tbl = compptr->dc_tbl_no;
-      } else {
-	entropy->ac_tbl_no = tbl = compptr->ac_tbl_no;
-      }
-      if (gather_statistics) {
-	/* Check for invalid table index */
-	/* (make_c_derived_tbl does this in the other path) */
-	if (tbl < 0 || tbl >= NUM_HUFF_TBLS)
-	  ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl);
-	/* Allocate and zero the statistics tables */
-	/* Note that jpeg_gen_optimal_table expects 257 entries in each table! */
-	if (entropy->count_ptrs[tbl] == NULL)
-	  entropy->count_ptrs[tbl] = (long *)
-	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-					257 * SIZEOF(long));
-	MEMZERO(entropy->count_ptrs[tbl], 257 * SIZEOF(long));
-      } else {
-	/* Compute derived values for Huffman table */
-	/* We may do this more than once for a table, but it's not expensive */
-	jpeg_make_c_derived_tbl(cinfo, cinfo->Ss == 0, tbl,
-				& entropy->derived_tbls[tbl]);
-      }
-    }
-
     /* Initialize AC stuff */
+    entropy->ac_tbl_no = cinfo->cur_comp_info[0]->ac_tbl_no;
     entropy->EOBRUN = 0;
     entropy->BE = 0;
   } else {
@@ -1532,41 +1490,50 @@ start_pass_huff (j_compress_ptr cinfo, boolean gather_statistics)
       entropy->pub.encode_mcu = encode_mcu_gather;
     else
       entropy->pub.encode_mcu = encode_mcu_huff;
+  }
 
   for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
     compptr = cinfo->cur_comp_info[ci];
-      dctbl = compptr->dc_tbl_no;
+    /* DC needs no table for refinement scan */
-      actbl = compptr->ac_tbl_no;
+    if (cinfo->Ss == 0 && cinfo->Ah == 0) {
+      tbl = compptr->dc_tbl_no;
       if (gather_statistics) {
-	/* Check for invalid table indexes */
+	/* Check for invalid table index */
 	/* (make_c_derived_tbl does this in the other path) */
-	if (dctbl < 0 || dctbl >= NUM_HUFF_TBLS)
+	if (tbl < 0 || tbl >= NUM_HUFF_TBLS)
-	  ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, dctbl);
+	  ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl);
-	if (actbl < 0 || actbl >= NUM_HUFF_TBLS)
-	  ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, actbl);
 	/* Allocate and zero the statistics tables */
 	/* Note that jpeg_gen_optimal_table expects 257 entries in each table! */
-	if (entropy->dc_count_ptrs[dctbl] == NULL)
+	if (entropy->dc_count_ptrs[tbl] == NULL)
-	  entropy->dc_count_ptrs[dctbl] = (long *)
+	  entropy->dc_count_ptrs[tbl] = (long *)
 	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 					257 * SIZEOF(long));
-	MEMZERO(entropy->dc_count_ptrs[dctbl], 257 * SIZEOF(long));
+	MEMZERO(entropy->dc_count_ptrs[tbl], 257 * SIZEOF(long));
-	if (entropy->ac_count_ptrs[actbl] == NULL)
-	  entropy->ac_count_ptrs[actbl] = (long *)
-	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-					257 * SIZEOF(long));
-	MEMZERO(entropy->ac_count_ptrs[actbl], 257 * SIZEOF(long));
       } else {
 	/* Compute derived values for Huffman tables */
 	/* We may do this more than once for a table, but it's not expensive */
-	jpeg_make_c_derived_tbl(cinfo, TRUE, dctbl,
+	jpeg_make_c_derived_tbl(cinfo, TRUE, tbl,
-				& entropy->dc_derived_tbls[dctbl]);
+				& entropy->dc_derived_tbls[tbl]);
-	jpeg_make_c_derived_tbl(cinfo, FALSE, actbl,
-				& entropy->ac_derived_tbls[actbl]);
       }
       /* Initialize DC predictions to 0 */
       entropy->saved.last_dc_val[ci] = 0;
     }
+    /* AC needs no table when not present */
+    if (cinfo->Se) {
+      tbl = compptr->ac_tbl_no;
+      if (gather_statistics) {
+	if (tbl < 0 || tbl >= NUM_HUFF_TBLS)
+	  ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl);
+	if (entropy->ac_count_ptrs[tbl] == NULL)
+	  entropy->ac_count_ptrs[tbl] = (long *)
+	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+					257 * SIZEOF(long));
+	MEMZERO(entropy->ac_count_ptrs[tbl], 257 * SIZEOF(long));
+      } else {
+	jpeg_make_c_derived_tbl(cinfo, FALSE, tbl,
+				& entropy->ac_derived_tbls[tbl]);
+      }
+    }
   }
 
   /* Initialize bit buffer to empty */
@@ -1592,21 +1559,15 @@ jinit_huff_encoder (j_compress_ptr cinfo)
   entropy = (huff_entropy_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(huff_entropy_encoder));
-  cinfo->entropy = (struct jpeg_entropy_encoder *) entropy;
+  cinfo->entropy = &entropy->pub;
   entropy->pub.start_pass = start_pass_huff;
 
-  if (cinfo->progressive_mode) {
-    /* Mark tables unallocated */
-    for (i = 0; i < NUM_HUFF_TBLS; i++) {
-      entropy->derived_tbls[i] = NULL;
-      entropy->count_ptrs[i] = NULL;
-    }
-    entropy->bit_buffer = NULL;	/* needed only in AC refinement scan */
-  } else {
   /* Mark tables unallocated */
   for (i = 0; i < NUM_HUFF_TBLS; i++) {
     entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL;
     entropy->dc_count_ptrs[i] = entropy->ac_count_ptrs[i] = NULL;
   }
-  }
+
+  if (cinfo->progressive_mode)
+    entropy->bit_buffer = NULL;	/* needed only in AC refinement scan */
 }

jcinit.c

@@ -2,6 +2,7 @@
  * jcinit.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
+ * Modified 2003-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -29,6 +30,24 @@
 GLOBAL(void)
 jinit_compress_master (j_compress_ptr cinfo)
 {
+  long samplesperrow;
+  JDIMENSION jd_samplesperrow;
+
+  /* For now, precision must match compiled-in value... */
+  if (cinfo->data_precision != BITS_IN_JSAMPLE)
+    ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
+
+  /* Sanity check on image dimensions */
+  if (cinfo->image_height <= 0 || cinfo->image_width <= 0 ||
+      cinfo->input_components <= 0)
+    ERREXIT(cinfo, JERR_EMPTY_IMAGE);
+
+  /* Width of an input scanline must be representable as JDIMENSION. */
+  samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components;
+  jd_samplesperrow = (JDIMENSION) samplesperrow;
+  if ((long) jd_samplesperrow != samplesperrow)
+    ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
+
   /* Initialize master control (includes parameter checking/processing) */
   jinit_c_master_control(cinfo, FALSE /* full compression */);
 

jcmainct.c

@@ -2,6 +2,7 @@
  * jcmainct.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2003-2012 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -68,32 +69,32 @@ METHODDEF(void) process_data_buffer_main
 METHODDEF(void)
 start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
 
   /* Do nothing in raw-data mode. */
   if (cinfo->raw_data_in)
     return;
 
-  main->cur_iMCU_row = 0;	/* initialize counters */
+  mainp->cur_iMCU_row = 0;	/* initialize counters */
-  main->rowgroup_ctr = 0;
+  mainp->rowgroup_ctr = 0;
-  main->suspended = FALSE;
+  mainp->suspended = FALSE;
-  main->pass_mode = pass_mode;	/* save mode for use by process_data */
+  mainp->pass_mode = pass_mode;	/* save mode for use by process_data */
 
   switch (pass_mode) {
   case JBUF_PASS_THRU:
 #ifdef FULL_MAIN_BUFFER_SUPPORTED
-    if (main->whole_image[0] != NULL)
+    if (mainp->whole_image[0] != NULL)
       ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
 #endif
-    main->pub.process_data = process_data_simple_main;
+    mainp->pub.process_data = process_data_simple_main;
     break;
 #ifdef FULL_MAIN_BUFFER_SUPPORTED
   case JBUF_SAVE_SOURCE:
   case JBUF_CRANK_DEST:
   case JBUF_SAVE_AND_PASS:
-    if (main->whole_image[0] == NULL)
+    if (mainp->whole_image[0] == NULL)
       ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    main->pub.process_data = process_data_buffer_main;
+    mainp->pub.process_data = process_data_buffer_main;
     break;
 #endif
   default:
@@ -114,46 +115,46 @@ process_data_simple_main (j_compress_ptr cinfo,
 			  JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
 			  JDIMENSION in_rows_avail)
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
 
-  while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
+  while (mainp->cur_iMCU_row < cinfo->total_iMCU_rows) {
     /* Read input data if we haven't filled the main buffer yet */
-    if (main->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
+    if (mainp->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
       (*cinfo->prep->pre_process_data) (cinfo,
 					input_buf, in_row_ctr, in_rows_avail,
-					main->buffer, &main->rowgroup_ctr,
+					mainp->buffer, &mainp->rowgroup_ctr,
 					(JDIMENSION) cinfo->min_DCT_v_scaled_size);
 
     /* If we don't have a full iMCU row buffered, return to application for
      * more data.  Note that preprocessor will always pad to fill the iMCU row
      * at the bottom of the image.
      */
-    if (main->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size)
+    if (mainp->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size)
       return;
 
     /* Send the completed row to the compressor */
-    if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
+    if (! (*cinfo->coef->compress_data) (cinfo, mainp->buffer)) {
       /* If compressor did not consume the whole row, then we must need to
        * suspend processing and return to the application.  In this situation
        * we pretend we didn't yet consume the last input row; otherwise, if
        * it happened to be the last row of the image, the application would
        * think we were done.
        */
-      if (! main->suspended) {
+      if (! mainp->suspended) {
 	(*in_row_ctr)--;
-	main->suspended = TRUE;
+	mainp->suspended = TRUE;
       }
       return;
     }
     /* We did finish the row.  Undo our little suspension hack if a previous
      * call suspended; then mark the main buffer empty.
      */
-    if (main->suspended) {
+    if (mainp->suspended) {
       (*in_row_ctr)++;
-      main->suspended = FALSE;
+      mainp->suspended = FALSE;
     }
-    main->rowgroup_ctr = 0;
+    mainp->rowgroup_ctr = 0;
-    main->cur_iMCU_row++;
+    mainp->cur_iMCU_row++;
   }
 }
 
@@ -170,25 +171,27 @@ process_data_buffer_main (j_compress_ptr cinfo,
 			  JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
 			  JDIMENSION in_rows_avail)
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
   int ci;
   jpeg_component_info *compptr;
-  boolean writing = (main->pass_mode != JBUF_CRANK_DEST);
+  boolean writing = (mainp->pass_mode != JBUF_CRANK_DEST);
 
-  while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
+  while (mainp->cur_iMCU_row < cinfo->total_iMCU_rows) {
     /* Realign the virtual buffers if at the start of an iMCU row. */
-    if (main->rowgroup_ctr == 0) {
+    if (mainp->rowgroup_ctr == 0) {
       for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
 	   ci++, compptr++) {
-	main->buffer[ci] = (*cinfo->mem->access_virt_sarray)
+	mainp->buffer[ci] = (*cinfo->mem->access_virt_sarray)
-	  ((j_common_ptr) cinfo, main->whole_image[ci],
+	  ((j_common_ptr) cinfo, mainp->whole_image[ci], mainp->cur_iMCU_row *
-	   main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE),
+	   ((JDIMENSION) (compptr->v_samp_factor * cinfo->min_DCT_v_scaled_size)),
-	   (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing);
+	   (JDIMENSION) (compptr->v_samp_factor * cinfo->min_DCT_v_scaled_size),
+	   writing);
       }
       /* In a read pass, pretend we just read some source data. */
       if (! writing) {
-	*in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE;
+	*in_row_ctr += (JDIMENSION)
-	main->rowgroup_ctr = DCTSIZE;
+	  (cinfo->max_v_samp_factor * cinfo->min_DCT_v_scaled_size);
+	mainp->rowgroup_ctr = (JDIMENSION) cinfo->min_DCT_v_scaled_size;
       }
     }
 
@@ -197,40 +200,40 @@ process_data_buffer_main (j_compress_ptr cinfo,
     if (writing) {
       (*cinfo->prep->pre_process_data) (cinfo,
 					input_buf, in_row_ctr, in_rows_avail,
-					main->buffer, &main->rowgroup_ctr,
+					mainp->buffer, &mainp->rowgroup_ctr,
-					(JDIMENSION) DCTSIZE);
+					(JDIMENSION) cinfo->min_DCT_v_scaled_size);
       /* Return to application if we need more data to fill the iMCU row. */
-      if (main->rowgroup_ctr < DCTSIZE)
+      if (mainp->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
 	return;
     }
 
     /* Emit data, unless this is a sink-only pass. */
-    if (main->pass_mode != JBUF_SAVE_SOURCE) {
+    if (mainp->pass_mode != JBUF_SAVE_SOURCE) {
-      if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
+      if (! (*cinfo->coef->compress_data) (cinfo, mainp->buffer)) {
 	/* If compressor did not consume the whole row, then we must need to
 	 * suspend processing and return to the application.  In this situation
 	 * we pretend we didn't yet consume the last input row; otherwise, if
 	 * it happened to be the last row of the image, the application would
 	 * think we were done.
 	 */
-	if (! main->suspended) {
+	if (! mainp->suspended) {
 	  (*in_row_ctr)--;
-	  main->suspended = TRUE;
+	  mainp->suspended = TRUE;
 	}
 	return;
       }
       /* We did finish the row.  Undo our little suspension hack if a previous
        * call suspended; then mark the main buffer empty.
        */
-      if (main->suspended) {
+      if (mainp->suspended) {
 	(*in_row_ctr)++;
-	main->suspended = FALSE;
+	mainp->suspended = FALSE;
       }
     }
 
     /* If get here, we are done with this iMCU row.  Mark buffer empty. */
-    main->rowgroup_ctr = 0;
+    mainp->rowgroup_ctr = 0;
-    main->cur_iMCU_row++;
+    mainp->cur_iMCU_row++;
   }
 }
 
@@ -244,15 +247,15 @@ process_data_buffer_main (j_compress_ptr cinfo,
 GLOBAL(void)
 jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
 {
-  my_main_ptr main;
+  my_main_ptr mainp;
   int ci;
   jpeg_component_info *compptr;
 
-  main = (my_main_ptr)
+  mainp = (my_main_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_main_controller));
-  cinfo->main = (struct jpeg_c_main_controller *) main;
+  cinfo->main = &mainp->pub;
-  main->pub.start_pass = start_pass_main;
+  mainp->pub.start_pass = start_pass_main;
 
   /* We don't need to create a buffer in raw-data mode. */
   if (cinfo->raw_data_in)
@@ -267,11 +270,12 @@ jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
     /* Note we pad the bottom to a multiple of the iMCU height */
     for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
 	 ci++, compptr++) {
-      main->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
+      mainp->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
 	((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
-	 compptr->width_in_blocks * compptr->DCT_h_scaled_size,
+	 compptr->width_in_blocks * ((JDIMENSION) compptr->DCT_h_scaled_size),
-	 (JDIMENSION) jround_up((long) compptr->height_in_blocks,
+	 ((JDIMENSION) jround_up((long) compptr->height_in_blocks,
-				(long) compptr->v_samp_factor) * DCTSIZE,
+				 (long) compptr->v_samp_factor)) *
+	 ((JDIMENSION) cinfo->min_DCT_v_scaled_size),
 	 (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));
     }
 #else
@@ -279,14 +283,14 @@ jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
 #endif
   } else {
 #ifdef FULL_MAIN_BUFFER_SUPPORTED
-    main->whole_image[0] = NULL; /* flag for no virtual arrays */
+    mainp->whole_image[0] = NULL; /* flag for no virtual arrays */
 #endif
     /* Allocate a strip buffer for each component */
     for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
 	 ci++, compptr++) {
-      main->buffer[ci] = (*cinfo->mem->alloc_sarray)
+      mainp->buffer[ci] = (*cinfo->mem->alloc_sarray)
 	((j_common_ptr) cinfo, JPOOL_IMAGE,
-	 compptr->width_in_blocks * compptr->DCT_h_scaled_size,
+	 compptr->width_in_blocks * ((JDIMENSION) compptr->DCT_h_scaled_size),
 	 (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));
     }
   }

jcmarker.c

@@ -2,6 +2,7 @@
  * jcmarker.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
+ * Modified 2003-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -72,6 +73,7 @@ typedef enum {			/* JPEG marker codes */
   M_APP15 = 0xef,
 
   M_JPG0  = 0xf0,
+  M_JPG8  = 0xf8,
   M_JPG13 = 0xfd,
   M_COM   = 0xfe,
 
@@ -153,21 +155,22 @@ emit_dqt (j_compress_ptr cinfo, int index)
     ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, index);
 
   prec = 0;
-  for (i = 0; i < DCTSIZE2; i++) {
+  for (i = 0; i <= cinfo->lim_Se; i++) {
-    if (qtbl->quantval[i] > 255)
+    if (qtbl->quantval[cinfo->natural_order[i]] > 255)
       prec = 1;
   }
 
   if (! qtbl->sent_table) {
     emit_marker(cinfo, M_DQT);
 
-    emit_2bytes(cinfo, prec ? DCTSIZE2*2 + 1 + 2 : DCTSIZE2 + 1 + 2);
+    emit_2bytes(cinfo,
+      prec ? cinfo->lim_Se * 2 + 2 + 1 + 2 : cinfo->lim_Se + 1 + 1 + 2);
 
     emit_byte(cinfo, index + (prec<<4));
 
-    for (i = 0; i < DCTSIZE2; i++) {
+    for (i = 0; i <= cinfo->lim_Se; i++) {
       /* The table entries must be emitted in zigzag order. */
-      unsigned int qval = qtbl->quantval[jpeg_natural_order[i]];
+      unsigned int qval = qtbl->quantval[cinfo->natural_order[i]];
       if (prec)
 	emit_byte(cinfo, (int) (qval >> 8));
       emit_byte(cinfo, (int) (qval & 0xFF));
@@ -235,7 +238,11 @@ emit_dac (j_compress_ptr cinfo)
 
   for (i = 0; i < cinfo->comps_in_scan; i++) {
     compptr = cinfo->cur_comp_info[i];
+    /* DC needs no table for refinement scan */
+    if (cinfo->Ss == 0 && cinfo->Ah == 0)
       dc_in_use[compptr->dc_tbl_no] = 1;
+    /* AC needs no table when not present */
+    if (cinfo->Se)
       ac_in_use[compptr->ac_tbl_no] = 1;
   }
 
@@ -243,6 +250,7 @@ emit_dac (j_compress_ptr cinfo)
   for (i = 0; i < NUM_ARITH_TBLS; i++)
     length += dc_in_use[i] + ac_in_use[i];
 
+  if (length) {
     emit_marker(cinfo, M_DAC);
 
     emit_2bytes(cinfo, length*2 + 2);
@@ -257,6 +265,7 @@ emit_dac (j_compress_ptr cinfo)
 	emit_byte(cinfo, cinfo->arith_ac_K[i]);
       }
     }
+  }
 #endif /* C_ARITH_CODING_SUPPORTED */
 }
 
@@ -273,6 +282,37 @@ emit_dri (j_compress_ptr cinfo)
 }
 
 
+LOCAL(void)
+emit_lse_ict (j_compress_ptr cinfo)
+/* Emit an LSE inverse color transform specification marker */
+{
+  /* Support only 1 transform */
+  if (cinfo->color_transform != JCT_SUBTRACT_GREEN ||
+      cinfo->num_components < 3)
+    ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+
+  emit_marker(cinfo, M_JPG8);
+  
+  emit_2bytes(cinfo, 24);	/* fixed length */
+
+  emit_byte(cinfo, 0x0D);	/* ID inverse transform specification */
+  emit_2bytes(cinfo, MAXJSAMPLE);	/* MAXTRANS */
+  emit_byte(cinfo, 3);		/* Nt=3 */
+  emit_byte(cinfo, cinfo->comp_info[1].component_id);
+  emit_byte(cinfo, cinfo->comp_info[0].component_id);
+  emit_byte(cinfo, cinfo->comp_info[2].component_id);
+  emit_byte(cinfo, 0x80);	/* F1: CENTER1=1, NORM1=0 */
+  emit_2bytes(cinfo, 0);	/* A(1,1)=0 */
+  emit_2bytes(cinfo, 0);	/* A(1,2)=0 */
+  emit_byte(cinfo, 0);		/* F2: CENTER2=0, NORM2=0 */
+  emit_2bytes(cinfo, 1);	/* A(2,1)=1 */
+  emit_2bytes(cinfo, 0);	/* A(2,2)=0 */
+  emit_byte(cinfo, 0);		/* F3: CENTER3=0, NORM3=0 */
+  emit_2bytes(cinfo, 1);	/* A(3,1)=1 */
+  emit_2bytes(cinfo, 0);	/* A(3,2)=0 */
+}
+
+
 LOCAL(void)
 emit_sof (j_compress_ptr cinfo, JPEG_MARKER code)
 /* Emit a SOF marker */
@@ -320,22 +360,16 @@ emit_sos (j_compress_ptr cinfo)
   for (i = 0; i < cinfo->comps_in_scan; i++) {
     compptr = cinfo->cur_comp_info[i];
     emit_byte(cinfo, compptr->component_id);
-    td = compptr->dc_tbl_no;
+
-    ta = compptr->ac_tbl_no;
+    /* We emit 0 for unused field(s); this is recommended by the P&M text
-    if (cinfo->progressive_mode) {
-      /* Progressive mode: only DC or only AC tables are used in one scan;
-       * furthermore, Huffman coding of DC refinement uses no table at all.
-       * We emit 0 for unused field(s); this is recommended by the P&M text
      * but does not seem to be specified in the standard.
      */
-      if (cinfo->Ss == 0) {
+
-	ta = 0;			/* DC scan */
+    /* DC needs no table for refinement scan */
-	if (cinfo->Ah != 0 && !cinfo->arith_code)
+    td = cinfo->Ss == 0 && cinfo->Ah == 0 ? compptr->dc_tbl_no : 0;
-	  td = 0;		/* no DC table either */
+    /* AC needs no table when not present */
-      } else {
+    ta = cinfo->Se ? compptr->ac_tbl_no : 0;
-	td = 0;			/* AC scan */
+
-      }
-    }
     emit_byte(cinfo, (td << 4) + ta);
   }
 
@@ -345,6 +379,22 @@ emit_sos (j_compress_ptr cinfo)
 }
 
 
+LOCAL(void)
+emit_pseudo_sos (j_compress_ptr cinfo)
+/* Emit a pseudo SOS marker */
+{
+  emit_marker(cinfo, M_SOS);
+  
+  emit_2bytes(cinfo, 2 + 1 + 3); /* length */
+  
+  emit_byte(cinfo, 0); /* Ns */
+
+  emit_byte(cinfo, 0); /* Ss */
+  emit_byte(cinfo, cinfo->block_size * cinfo->block_size - 1); /* Se */
+  emit_byte(cinfo, 0); /* Ah/Al */
+}
+
+
 LOCAL(void)
 emit_jfif_app0 (j_compress_ptr cinfo)
 /* Emit a JFIF-compliant APP0 marker */
@@ -458,8 +508,8 @@ write_marker_byte (j_compress_ptr cinfo, int val)
  * Write datastream header.
  * This consists of an SOI and optional APPn markers.
  * We recommend use of the JFIF marker, but not the Adobe marker,
- * when using YCbCr or grayscale data.  The JFIF marker should NOT
+ * when using YCbCr or grayscale data.  The JFIF marker is also used
- * be used for any other JPEG colorspace.  The Adobe marker is helpful
+ * for other standard JPEG colorspaces.  The Adobe marker is helpful
  * to distinguish RGB, CMYK, and YCCK colorspaces.
  * Note that an application can write additional header markers after
  * jpeg_start_compress returns.
@@ -484,7 +534,8 @@ write_file_header (j_compress_ptr cinfo)
 
 /*
  * Write frame header.
- * This consists of DQT and SOFn markers.
+ * This consists of DQT and SOFn markers,
+ * a conditional LSE marker and a conditional pseudo SOS marker.
  * Note that we do not emit the SOF until we have emitted the DQT(s).
  * This avoids compatibility problems with incorrect implementations that
  * try to error-check the quant table numbers as soon as they see the SOF.
@@ -511,7 +562,7 @@ write_frame_header (j_compress_ptr cinfo)
    * Note we assume that Huffman table numbers won't be changed later.
    */
   if (cinfo->arith_code || cinfo->progressive_mode ||
-      cinfo->data_precision != 8) {
+      cinfo->data_precision != 8 || cinfo->block_size != DCTSIZE) {
     is_baseline = FALSE;
   } else {
     is_baseline = TRUE;
@@ -541,6 +592,14 @@ write_frame_header (j_compress_ptr cinfo)
     else
       emit_sof(cinfo, M_SOF1);	/* SOF code for non-baseline Huffman file */
   }
+
+  /* Check to emit LSE inverse color transform specification marker */
+  if (cinfo->color_transform)
+    emit_lse_ict(cinfo);
+
+  /* Check to emit pseudo SOS marker */
+  if (cinfo->progressive_mode && cinfo->block_size != DCTSIZE)
+    emit_pseudo_sos(cinfo);
 }
 
 
@@ -569,20 +628,13 @@ write_scan_header (j_compress_ptr cinfo)
      */
     for (i = 0; i < cinfo->comps_in_scan; i++) {
       compptr = cinfo->cur_comp_info[i];
-      if (cinfo->progressive_mode) {
+      /* DC needs no table for refinement scan */
-	/* Progressive mode: only DC or only AC tables are used in one scan */
+      if (cinfo->Ss == 0 && cinfo->Ah == 0)
-	if (cinfo->Ss == 0) {
-	  if (cinfo->Ah == 0)	/* DC needs no table for refinement scan */
 	emit_dht(cinfo, compptr->dc_tbl_no, FALSE);
-	} else {
+      /* AC needs no table when not present */
+      if (cinfo->Se)
 	emit_dht(cinfo, compptr->ac_tbl_no, TRUE);
     }
-      } else {
-	/* Sequential mode: need both DC and AC tables */
-	emit_dht(cinfo, compptr->dc_tbl_no, FALSE);
-	emit_dht(cinfo, compptr->ac_tbl_no, TRUE);
-      }
-    }
   }
 
   /* Emit DRI if required --- note that DRI value could change for each scan.
@@ -653,7 +705,7 @@ jinit_marker_writer (j_compress_ptr cinfo)
   marker = (my_marker_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_marker_writer));
-  cinfo->marker = (struct jpeg_marker_writer *) marker;
+  cinfo->marker = &marker->pub;
   /* Initialize method pointers */
   marker->pub.write_file_header = write_file_header;
   marker->pub.write_frame_header = write_frame_header;

jcmaster.c

@@ -2,7 +2,7 @@
  * jcmaster.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2003-2009 by Guido Vollbeding.
+ * Modified 2003-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -55,125 +55,140 @@ jpeg_calc_jpeg_dimensions (j_compress_ptr cinfo)
 {
 #ifdef DCT_SCALING_SUPPORTED
 
+  /* Sanity check on input image dimensions to prevent overflow in
+   * following calculation.
+   * We do check jpeg_width and jpeg_height in initial_setup below,
+   * but image_width and image_height can come from arbitrary data,
+   * and we need some space for multiplication by block_size.
+   */
+  if (((long) cinfo->image_width >> 24) || ((long) cinfo->image_height >> 24))
+    ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION);
+
   /* Compute actual JPEG image dimensions and DCT scaling choices. */
-  if (cinfo->scale_num >= cinfo->scale_denom * 8) {
+  if (cinfo->scale_num >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 8/1 scaling */
+    /* Provide block_size/1 scaling */
-    cinfo->jpeg_width = cinfo->image_width << 3;
+    cinfo->jpeg_width = cinfo->image_width * cinfo->block_size;
-    cinfo->jpeg_height = cinfo->image_height << 3;
+    cinfo->jpeg_height = cinfo->image_height * cinfo->block_size;
     cinfo->min_DCT_h_scaled_size = 1;
     cinfo->min_DCT_v_scaled_size = 1;
-  } else if (cinfo->scale_num >= cinfo->scale_denom * 4) {
+  } else if (cinfo->scale_num * 2 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 4/1 scaling */
+    /* Provide block_size/2 scaling */
-    cinfo->jpeg_width = cinfo->image_width << 2;
+    cinfo->jpeg_width = (JDIMENSION)
-    cinfo->jpeg_height = cinfo->image_height << 2;
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 2L);
+    cinfo->jpeg_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 2L);
     cinfo->min_DCT_h_scaled_size = 2;
     cinfo->min_DCT_v_scaled_size = 2;
-  } else if (cinfo->scale_num * 3 >= cinfo->scale_denom * 8) {
+  } else if (cinfo->scale_num * 3 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 8/3 scaling */
+    /* Provide block_size/3 scaling */
-    cinfo->jpeg_width = (cinfo->image_width << 1) + (JDIMENSION)
+    cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 2, 3L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 3L);
-    cinfo->jpeg_height = (cinfo->image_height << 1) + (JDIMENSION)
+    cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 2, 3L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 3L);
     cinfo->min_DCT_h_scaled_size = 3;
     cinfo->min_DCT_v_scaled_size = 3;
-  } else if (cinfo->scale_num >= cinfo->scale_denom * 2) {
+  } else if (cinfo->scale_num * 4 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 2/1 scaling */
+    /* Provide block_size/4 scaling */
-    cinfo->jpeg_width = cinfo->image_width << 1;
+    cinfo->jpeg_width = (JDIMENSION)
-    cinfo->jpeg_height = cinfo->image_height << 1;
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 4L);
+    cinfo->jpeg_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 4L);
     cinfo->min_DCT_h_scaled_size = 4;
     cinfo->min_DCT_v_scaled_size = 4;
-  } else if (cinfo->scale_num * 5 >= cinfo->scale_denom * 8) {
+  } else if (cinfo->scale_num * 5 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 8/5 scaling */
+    /* Provide block_size/5 scaling */
-    cinfo->jpeg_width = cinfo->image_width + (JDIMENSION)
+    cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 3, 5L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 5L);
-    cinfo->jpeg_height = cinfo->image_height + (JDIMENSION)
+    cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 3, 5L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 5L);
     cinfo->min_DCT_h_scaled_size = 5;
     cinfo->min_DCT_v_scaled_size = 5;
-  } else if (cinfo->scale_num * 3 >= cinfo->scale_denom * 4) {
+  } else if (cinfo->scale_num * 6 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 4/3 scaling */
+    /* Provide block_size/6 scaling */
-    cinfo->jpeg_width = cinfo->image_width + (JDIMENSION)
+    cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 3L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 6L);
-    cinfo->jpeg_height = cinfo->image_height + (JDIMENSION)
+    cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 3L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 6L);
     cinfo->min_DCT_h_scaled_size = 6;
     cinfo->min_DCT_v_scaled_size = 6;
-  } else if (cinfo->scale_num * 7 >= cinfo->scale_denom * 8) {
+  } else if (cinfo->scale_num * 7 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 8/7 scaling */
+    /* Provide block_size/7 scaling */
-    cinfo->jpeg_width = cinfo->image_width + (JDIMENSION)
+    cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 7L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 7L);
-    cinfo->jpeg_height = cinfo->image_height + (JDIMENSION)
+    cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 7L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 7L);
     cinfo->min_DCT_h_scaled_size = 7;
     cinfo->min_DCT_v_scaled_size = 7;
-  } else if (cinfo->scale_num >= cinfo->scale_denom) {
+  } else if (cinfo->scale_num * 8 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 1/1 scaling */
+    /* Provide block_size/8 scaling */
-    cinfo->jpeg_width = cinfo->image_width;
-    cinfo->jpeg_height = cinfo->image_height;
-    cinfo->min_DCT_h_scaled_size = DCTSIZE;
-    cinfo->min_DCT_v_scaled_size = DCTSIZE;
-  } else if (cinfo->scale_num * 9 >= cinfo->scale_denom * 8) {
-    /* Provide 8/9 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 8, 9L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 8L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 8, 9L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 8L);
+    cinfo->min_DCT_h_scaled_size = 8;
+    cinfo->min_DCT_v_scaled_size = 8;
+  } else if (cinfo->scale_num * 9 >= cinfo->scale_denom * cinfo->block_size) {
+    /* Provide block_size/9 scaling */
+    cinfo->jpeg_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 9L);
+    cinfo->jpeg_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 9L);
     cinfo->min_DCT_h_scaled_size = 9;
     cinfo->min_DCT_v_scaled_size = 9;
-  } else if (cinfo->scale_num * 5 >= cinfo->scale_denom * 4) {
+  } else if (cinfo->scale_num * 10 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 4/5 scaling */
+    /* Provide block_size/10 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 4, 5L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 10L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 4, 5L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 10L);
     cinfo->min_DCT_h_scaled_size = 10;
     cinfo->min_DCT_v_scaled_size = 10;
-  } else if (cinfo->scale_num * 11 >= cinfo->scale_denom * 8) {
+  } else if (cinfo->scale_num * 11 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 8/11 scaling */
+    /* Provide block_size/11 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 8, 11L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 11L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 8, 11L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 11L);
     cinfo->min_DCT_h_scaled_size = 11;
     cinfo->min_DCT_v_scaled_size = 11;
-  } else if (cinfo->scale_num * 3 >= cinfo->scale_denom * 2) {
+  } else if (cinfo->scale_num * 12 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 2/3 scaling */
+    /* Provide block_size/12 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 2, 3L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 12L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 2, 3L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 12L);
     cinfo->min_DCT_h_scaled_size = 12;
     cinfo->min_DCT_v_scaled_size = 12;
-  } else if (cinfo->scale_num * 13 >= cinfo->scale_denom * 8) {
+  } else if (cinfo->scale_num * 13 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 8/13 scaling */
+    /* Provide block_size/13 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 8, 13L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 13L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 8, 13L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 13L);
     cinfo->min_DCT_h_scaled_size = 13;
     cinfo->min_DCT_v_scaled_size = 13;
-  } else if (cinfo->scale_num * 7 >= cinfo->scale_denom * 4) {
+  } else if (cinfo->scale_num * 14 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 4/7 scaling */
+    /* Provide block_size/14 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 4, 7L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 14L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 4, 7L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 14L);
     cinfo->min_DCT_h_scaled_size = 14;
     cinfo->min_DCT_v_scaled_size = 14;
-  } else if (cinfo->scale_num * 15 >= cinfo->scale_denom * 8) {
+  } else if (cinfo->scale_num * 15 >= cinfo->scale_denom * cinfo->block_size) {
-    /* Provide 8/15 scaling */
+    /* Provide block_size/15 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 8, 15L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 15L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 8, 15L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 15L);
     cinfo->min_DCT_h_scaled_size = 15;
     cinfo->min_DCT_v_scaled_size = 15;
   } else {
-    /* Provide 1/2 scaling */
+    /* Provide block_size/16 scaling */
     cinfo->jpeg_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 2L);
+      jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 16L);
     cinfo->jpeg_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 2L);
+      jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 16L);
     cinfo->min_DCT_h_scaled_size = 16;
     cinfo->min_DCT_v_scaled_size = 16;
   }
@@ -191,19 +206,50 @@ jpeg_calc_jpeg_dimensions (j_compress_ptr cinfo)
 
 
 LOCAL(void)
-initial_setup (j_compress_ptr cinfo)
+jpeg_calc_trans_dimensions (j_compress_ptr cinfo)
+{
+  if (cinfo->min_DCT_h_scaled_size != cinfo->min_DCT_v_scaled_size)
+    ERREXIT2(cinfo, JERR_BAD_DCTSIZE,
+	     cinfo->min_DCT_h_scaled_size, cinfo->min_DCT_v_scaled_size);
+
+  cinfo->block_size = cinfo->min_DCT_h_scaled_size;
+}
+
+
+LOCAL(void)
+initial_setup (j_compress_ptr cinfo, boolean transcode_only)
 /* Do computations that are needed before master selection phase */
 {
   int ci, ssize;
   jpeg_component_info *compptr;
-  long samplesperrow;
-  JDIMENSION jd_samplesperrow;
 
+  if (transcode_only)
+    jpeg_calc_trans_dimensions(cinfo);
+  else
     jpeg_calc_jpeg_dimensions(cinfo);
 
+  /* Sanity check on block_size */
+  if (cinfo->block_size < 1 || cinfo->block_size > 16)
+    ERREXIT2(cinfo, JERR_BAD_DCTSIZE, cinfo->block_size, cinfo->block_size);
+
+  /* Derive natural_order from block_size */
+  switch (cinfo->block_size) {
+  case 2: cinfo->natural_order = jpeg_natural_order2; break;
+  case 3: cinfo->natural_order = jpeg_natural_order3; break;
+  case 4: cinfo->natural_order = jpeg_natural_order4; break;
+  case 5: cinfo->natural_order = jpeg_natural_order5; break;
+  case 6: cinfo->natural_order = jpeg_natural_order6; break;
+  case 7: cinfo->natural_order = jpeg_natural_order7; break;
+  default: cinfo->natural_order = jpeg_natural_order; break;
+  }
+
+  /* Derive lim_Se from block_size */
+  cinfo->lim_Se = cinfo->block_size < DCTSIZE ?
+    cinfo->block_size * cinfo->block_size - 1 : DCTSIZE2-1;
+
   /* Sanity check on image dimensions */
-  if (cinfo->jpeg_height <= 0 || cinfo->jpeg_width <= 0
+  if (cinfo->jpeg_height <= 0 || cinfo->jpeg_width <= 0 ||
-      || cinfo->num_components <= 0 || cinfo->input_components <= 0)
+      cinfo->num_components <= 0)
     ERREXIT(cinfo, JERR_EMPTY_IMAGE);
 
   /* Make sure image isn't bigger than I can handle */
@@ -211,14 +257,8 @@ initial_setup (j_compress_ptr cinfo)
       (long) cinfo->jpeg_width > (long) JPEG_MAX_DIMENSION)
     ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION);
 
-  /* Width of an input scanline must be representable as JDIMENSION. */
+  /* Only 8 to 12 bits data precision are supported for DCT based JPEG */
-  samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components;
+  if (cinfo->data_precision < 8 || cinfo->data_precision > 12)
-  jd_samplesperrow = (JDIMENSION) samplesperrow;
-  if ((long) jd_samplesperrow != samplesperrow)
-    ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
-
-  /* For now, precision must match compiled-in value... */
-  if (cinfo->data_precision != BITS_IN_JSAMPLE)
     ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
 
   /* Check that number of components won't exceed internal array sizes */
@@ -278,21 +318,23 @@ initial_setup (j_compress_ptr cinfo)
     /* Size in DCT blocks */
     compptr->width_in_blocks = (JDIMENSION)
       jdiv_round_up((long) cinfo->jpeg_width * (long) compptr->h_samp_factor,
-		    (long) (cinfo->max_h_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_h_samp_factor * cinfo->block_size));
     compptr->height_in_blocks = (JDIMENSION)
       jdiv_round_up((long) cinfo->jpeg_height * (long) compptr->v_samp_factor,
-		    (long) (cinfo->max_v_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_v_samp_factor * cinfo->block_size));
     /* Size in samples */
     compptr->downsampled_width = (JDIMENSION)
       jdiv_round_up((long) cinfo->jpeg_width *
 		    (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size),
-		    (long) (cinfo->max_h_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_h_samp_factor * cinfo->block_size));
     compptr->downsampled_height = (JDIMENSION)
       jdiv_round_up((long) cinfo->jpeg_height *
 		    (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size),
-		    (long) (cinfo->max_v_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_v_samp_factor * cinfo->block_size));
-    /* Mark component needed (this flag isn't actually used for compression) */
+    /* Don't need quantization scale after DCT,
-    compptr->component_needed = TRUE;
+     * until color conversion says otherwise.
+     */
+    compptr->component_needed = FALSE;
   }
 
   /* Compute number of fully interleaved MCU rows (number of times that
@@ -300,7 +342,7 @@ initial_setup (j_compress_ptr cinfo)
    */
   cinfo->total_iMCU_rows = (JDIMENSION)
     jdiv_round_up((long) cinfo->jpeg_height,
-		  (long) (cinfo->max_v_samp_factor*DCTSIZE));
+		  (long) (cinfo->max_v_samp_factor * cinfo->block_size));
 }
 
 
@@ -440,6 +482,39 @@ validate_script (j_compress_ptr cinfo)
   }
 }
 
+
+LOCAL(void)
+reduce_script (j_compress_ptr cinfo)
+/* Adapt scan script for use with reduced block size;
+ * assume that script has been validated before.
+ */
+{
+  jpeg_scan_info * scanptr;
+  int idxout, idxin;
+
+  /* Circumvent const declaration for this function */
+  scanptr = (jpeg_scan_info *) cinfo->scan_info;
+  idxout = 0;
+
+  for (idxin = 0; idxin < cinfo->num_scans; idxin++) {
+    /* After skipping, idxout becomes smaller than idxin */
+    if (idxin != idxout)
+      /* Copy rest of data;
+       * note we stay in given chunk of allocated memory.
+       */
+      scanptr[idxout] = scanptr[idxin];
+    if (scanptr[idxout].Ss > cinfo->lim_Se)
+      /* Entire scan out of range - skip this entry */
+      continue;
+    if (scanptr[idxout].Se > cinfo->lim_Se)
+      /* Limit scan to end of block */
+      scanptr[idxout].Se = cinfo->lim_Se;
+    idxout++;
+  }
+
+  cinfo->num_scans = idxout;
+}
+
 #endif /* C_MULTISCAN_FILES_SUPPORTED */
 
 
@@ -460,10 +535,13 @@ select_scan_parameters (j_compress_ptr cinfo)
       cinfo->cur_comp_info[ci] =
 	&cinfo->comp_info[scanptr->component_index[ci]];
     }
+    if (cinfo->progressive_mode) {
       cinfo->Ss = scanptr->Ss;
       cinfo->Se = scanptr->Se;
       cinfo->Ah = scanptr->Ah;
       cinfo->Al = scanptr->Al;
+      return;
+    }
   }
   else
 #endif
@@ -476,11 +554,11 @@ select_scan_parameters (j_compress_ptr cinfo)
     for (ci = 0; ci < cinfo->num_components; ci++) {
       cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci];
     }
+  }
   cinfo->Ss = 0;
-    cinfo->Se = DCTSIZE2-1;
+  cinfo->Se = cinfo->block_size * cinfo->block_size - 1;
   cinfo->Ah = 0;
   cinfo->Al = 0;
-  }
 }
 
 
@@ -528,10 +606,10 @@ per_scan_setup (j_compress_ptr cinfo)
     /* Overall image size in MCUs */
     cinfo->MCUs_per_row = (JDIMENSION)
       jdiv_round_up((long) cinfo->jpeg_width,
-		    (long) (cinfo->max_h_samp_factor*DCTSIZE));
+		    (long) (cinfo->max_h_samp_factor * cinfo->block_size));
     cinfo->MCU_rows_in_scan = (JDIMENSION)
       jdiv_round_up((long) cinfo->jpeg_height,
-		    (long) (cinfo->max_v_samp_factor*DCTSIZE));
+		    (long) (cinfo->max_v_samp_factor * cinfo->block_size));
     
     cinfo->blocks_in_MCU = 0;
     
@@ -727,18 +805,20 @@ jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only)
   master = (my_master_ptr)
       (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				  SIZEOF(my_comp_master));
-  cinfo->master = (struct jpeg_comp_master *) master;
+  cinfo->master = &master->pub;
   master->pub.prepare_for_pass = prepare_for_pass;
   master->pub.pass_startup = pass_startup;
   master->pub.finish_pass = finish_pass_master;
   master->pub.is_last_pass = FALSE;
 
   /* Validate parameters, determine derived values */
-  initial_setup(cinfo);
+  initial_setup(cinfo, transcode_only);
 
   if (cinfo->scan_info != NULL) {
 #ifdef C_MULTISCAN_FILES_SUPPORTED
     validate_script(cinfo);
+    if (cinfo->block_size < DCTSIZE)
+      reduce_script(cinfo);
 #else
     ERREXIT(cinfo, JERR_NOT_COMPILED);
 #endif
@@ -747,8 +827,14 @@ jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only)
     cinfo->num_scans = 1;
   }
 
-  if (cinfo->progressive_mode && cinfo->arith_code == 0)	/*  TEMPORARY HACK ??? */
+  if (cinfo->optimize_coding)
-    cinfo->optimize_coding = TRUE; /* assume default tables no good for progressive mode */
+    cinfo->arith_code = FALSE; /* disable arithmetic coding */
+  else if (! cinfo->arith_code &&
+	   (cinfo->progressive_mode ||
+	    (cinfo->block_size > 1 && cinfo->block_size < DCTSIZE)))
+    /* TEMPORARY HACK ??? */
+    /* assume default tables no good for progressive or reduced AC mode */
+    cinfo->optimize_coding = TRUE; /* force Huffman optimization */
 
   /* Initialize my private state */
   if (transcode_only) {

jconfig.cfg

@@ -17,6 +17,20 @@
 /* Define this if you get warnings about undefined structures. */
 #undef INCOMPLETE_TYPES_BROKEN
 
+/* Define "boolean" as unsigned char, not enum, on Windows systems. */
+#ifdef _WIN32
+#ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
+typedef unsigned char boolean;
+#endif
+#ifndef FALSE			/* in case these macros already exist */
+#define FALSE	0		/* values of boolean */
+#endif
+#ifndef TRUE
+#define TRUE	1
+#endif
+#define HAVE_BOOLEAN		/* prevent jmorecfg.h from redefining it */
+#endif
+
 #ifdef JPEG_INTERNALS
 
 #undef RIGHT_SHIFT_IS_UNSIGNED

jconfig.mc6

@@ -30,7 +30,7 @@
 #define SHORTxLCONST_32		/* enable compiler-specific DCT optimization */
 /* Note: the above define is known to improve the code with Microsoft C 6.00A.
  * I do not know whether it is good for later compiler versions.
- * Please report any info on this point to jpeg-info@uunet.uu.net.
+ * Please report any info on this point to jpeg-info@jpegclub.org.
  */
 
 #endif /* JPEG_INTERNALS */

jconfig.txt

@@ -2,6 +2,7 @@
  * jconfig.txt
  *
  * Copyright (C) 1991-1994, Thomas G. Lane.
+ * Modified 2009-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -91,6 +92,21 @@
  */
 #undef INCOMPLETE_TYPES_BROKEN
 
+/* Define "boolean" as unsigned char, not enum, on Windows systems.
+ */
+#ifdef _WIN32
+#ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
+typedef unsigned char boolean;
+#endif
+#ifndef FALSE			/* in case these macros already exist */
+#define FALSE	0		/* values of boolean */
+#endif
+#ifndef TRUE
+#define TRUE	1
+#endif
+#define HAVE_BOOLEAN		/* prevent jmorecfg.h from redefining it */
+#endif
+
 
 /*
  * The following options affect code selection within the JPEG library,

jconfig.vc

@@ -15,10 +15,16 @@
 #undef NEED_SHORT_EXTERNAL_NAMES
 #undef INCOMPLETE_TYPES_BROKEN
 
-/* Define "boolean" as unsigned char, not int, per Windows custom */
+/* Define "boolean" as unsigned char, not enum, per Windows custom */
 #ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
 typedef unsigned char boolean;
 #endif
+#ifndef FALSE			/* in case these macros already exist */
+#define FALSE	0		/* values of boolean */
+#endif
+#ifndef TRUE
+#define TRUE	1
+#endif
 #define HAVE_BOOLEAN		/* prevent jmorecfg.h from redefining it */
 
 

jcparam.c

@@ -2,7 +2,7 @@
  * jcparam.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
- * Modified 2003-2008 by Guido Vollbeding.
+ * Modified 2003-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -150,7 +150,7 @@ jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline)
 /* Set or change the 'quality' (quantization) setting, using default tables.
  * This is the standard quality-adjusting entry point for typical user
  * interfaces; only those who want detailed control over quantization tables
- * would use the preceding three routines directly.
+ * would use the preceding routines directly.
  */
 {
   /* Convert user 0-100 rating to percentage scaling */
@@ -323,18 +323,17 @@ jpeg_set_defaults (j_compress_ptr cinfo)
   /* Expect normal source image, not raw downsampled data */
   cinfo->raw_data_in = FALSE;
 
-  /* Use Huffman coding, not arithmetic coding, by default */
+  /* The standard Huffman tables are only valid for 8-bit data precision.
-  cinfo->arith_code = FALSE;
+   * If the precision is higher, use arithmetic coding.
+   * (Alternatively, using Huffman coding would be possible with forcing
+   * optimization on so that usable tables will be computed, or by
+   * supplying default tables that are valid for the desired precision.)
+   * Otherwise, use Huffman coding by default.
+   */
+  cinfo->arith_code = cinfo->data_precision > 8 ? TRUE : FALSE;
 
   /* By default, don't do extra passes to optimize entropy coding */
   cinfo->optimize_coding = FALSE;
-  /* The standard Huffman tables are only valid for 8-bit data precision.
-   * If the precision is higher, force optimization on so that usable
-   * tables will be computed.  This test can be removed if default tables
-   * are supplied that are valid for the desired precision.
-   */
-  if (cinfo->data_precision > 8)
-    cinfo->optimize_coding = TRUE;
 
   /* By default, use the simpler non-cosited sampling alignment */
   cinfo->CCIR601_sampling = FALSE;
@@ -360,6 +359,9 @@ jpeg_set_defaults (j_compress_ptr cinfo)
    * JFIF_minor_version to 2.  We could probably get away with just defaulting
    * to 1.02, but there may still be some decoders in use that will complain
    * about that; saying 1.01 should minimize compatibility problems.
+   *
+   * For wide gamut colorspaces (BG_RGB and BG_YCC), the major version will be
+   * overridden by jpeg_set_colorspace and set to 2.
    */
   cinfo->JFIF_major_version = 1; /* Default JFIF version = 1.01 */
   cinfo->JFIF_minor_version = 1;
@@ -367,6 +369,9 @@ jpeg_set_defaults (j_compress_ptr cinfo)
   cinfo->X_density = 1;		/* Pixel aspect ratio is square by default */
   cinfo->Y_density = 1;
 
+  /* No color transform */
+  cinfo->color_transform = JCT_NONE;
+
   /* Choose JPEG colorspace based on input space, set defaults accordingly */
 
   jpeg_default_colorspace(cinfo);
@@ -381,6 +386,9 @@ GLOBAL(void)
 jpeg_default_colorspace (j_compress_ptr cinfo)
 {
   switch (cinfo->in_color_space) {
+  case JCS_UNKNOWN:
+    jpeg_set_colorspace(cinfo, JCS_UNKNOWN);
+    break;
   case JCS_GRAYSCALE:
     jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
     break;
@@ -396,8 +404,12 @@ jpeg_default_colorspace (j_compress_ptr cinfo)
   case JCS_YCCK:
     jpeg_set_colorspace(cinfo, JCS_YCCK);
     break;
-  case JCS_UNKNOWN:
+  case JCS_BG_RGB:
-    jpeg_set_colorspace(cinfo, JCS_UNKNOWN);
+    /* No translation for now -- conversion to BG_YCC not yet supportet */
+    jpeg_set_colorspace(cinfo, JCS_BG_RGB);
+    break;
+  case JCS_BG_YCC:
+    jpeg_set_colorspace(cinfo, JCS_BG_YCC);
     break;
   default:
     ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
@@ -438,27 +450,40 @@ jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace)
   cinfo->write_Adobe_marker = FALSE; /* write no Adobe marker by default */
 
   switch (colorspace) {
+  case JCS_UNKNOWN:
+    cinfo->num_components = cinfo->input_components;
+    if (cinfo->num_components < 1 || cinfo->num_components > MAX_COMPONENTS)
+      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
+	       MAX_COMPONENTS);
+    for (ci = 0; ci < cinfo->num_components; ci++) {
+      SET_COMP(ci, ci, 1,1, 0, 0,0);
+    }
+    break;
   case JCS_GRAYSCALE:
     cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */
     cinfo->num_components = 1;
     /* JFIF specifies component ID 1 */
-    SET_COMP(0, 1, 1,1, 0, 0,0);
+    SET_COMP(0, 0x01, 1,1, 0, 0,0);
     break;
   case JCS_RGB:
     cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag RGB */
     cinfo->num_components = 3;
-    SET_COMP(0, 0x52 /* 'R' */, 1,1, 0, 0,0);
+    SET_COMP(0, 0x52 /* 'R' */, 1,1, 0,
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0,
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0);
     SET_COMP(1, 0x47 /* 'G' */, 1,1, 0, 0,0);
-    SET_COMP(2, 0x42 /* 'B' */, 1,1, 0, 0,0);
+    SET_COMP(2, 0x42 /* 'B' */, 1,1, 0,
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0,
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0);
     break;
   case JCS_YCbCr:
     cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */
     cinfo->num_components = 3;
     /* JFIF specifies component IDs 1,2,3 */
     /* We default to 2x2 subsamples of chrominance */
-    SET_COMP(0, 1, 2,2, 0, 0,0);
+    SET_COMP(0, 0x01, 2,2, 0, 0,0);
-    SET_COMP(1, 2, 1,1, 1, 1,1);
+    SET_COMP(1, 0x02, 1,1, 1, 1,1);
-    SET_COMP(2, 3, 1,1, 1, 1,1);
+    SET_COMP(2, 0x03, 1,1, 1, 1,1);
     break;
   case JCS_CMYK:
     cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag CMYK */
@@ -471,19 +496,33 @@ jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace)
   case JCS_YCCK:
     cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag YCCK */
     cinfo->num_components = 4;
-    SET_COMP(0, 1, 2,2, 0, 0,0);
+    SET_COMP(0, 0x01, 2,2, 0, 0,0);
-    SET_COMP(1, 2, 1,1, 1, 1,1);
+    SET_COMP(1, 0x02, 1,1, 1, 1,1);
-    SET_COMP(2, 3, 1,1, 1, 1,1);
+    SET_COMP(2, 0x03, 1,1, 1, 1,1);
-    SET_COMP(3, 4, 2,2, 0, 0,0);
+    SET_COMP(3, 0x04, 2,2, 0, 0,0);
     break;
-  case JCS_UNKNOWN:
+  case JCS_BG_RGB:
-    cinfo->num_components = cinfo->input_components;
+    cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */
-    if (cinfo->num_components < 1 || cinfo->num_components > MAX_COMPONENTS)
+    cinfo->JFIF_major_version = 2;   /* Set JFIF major version = 2 */
-      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
+    cinfo->num_components = 3;
-	       MAX_COMPONENTS);
+    /* Add offset 0x20 to the normal R/G/B component IDs */
-    for (ci = 0; ci < cinfo->num_components; ci++) {
+    SET_COMP(0, 0x72 /* 'r' */, 1,1, 0,
-      SET_COMP(ci, ci, 1,1, 0, 0,0);
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0,
-    }
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0);
+    SET_COMP(1, 0x67 /* 'g' */, 1,1, 0, 0,0);
+    SET_COMP(2, 0x62 /* 'b' */, 1,1, 0,
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0,
+		cinfo->color_transform == JCT_SUBTRACT_GREEN ? 1 : 0);
+    break;
+  case JCS_BG_YCC:
+    cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */
+    cinfo->JFIF_major_version = 2;   /* Set JFIF major version = 2 */
+    cinfo->num_components = 3;
+    /* Add offset 0x20 to the normal Cb/Cr component IDs */
+    /* We default to 2x2 subsamples of chrominance */
+    SET_COMP(0, 0x01, 2,2, 0, 0,0);
+    SET_COMP(1, 0x22, 1,1, 1, 1,1);
+    SET_COMP(2, 0x23, 1,1, 1, 1,1);
     break;
   default:
     ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
@@ -567,8 +606,10 @@ jpeg_simple_progression (j_compress_ptr cinfo)
     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
 
   /* Figure space needed for script.  Calculation must match code below! */
-  if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) {
+  if (ncomps == 3 &&
-    /* Custom script for YCbCr color images. */
+      (cinfo->jpeg_color_space == JCS_YCbCr ||
+       cinfo->jpeg_color_space == JCS_BG_YCC)) {
+    /* Custom script for YCC color images. */
     nscans = 10;
   } else {
     /* All-purpose script for other color spaces. */
@@ -583,7 +624,7 @@ jpeg_simple_progression (j_compress_ptr cinfo)
    * multiple compressions without changing the settings.  To avoid a memory
    * leak if jpeg_simple_progression is called repeatedly for the same JPEG
    * object, we try to re-use previously allocated space, and we allocate
-   * enough space to handle YCbCr even if initially asked for grayscale.
+   * enough space to handle YCC even if initially asked for grayscale.
    */
   if (cinfo->script_space == NULL || cinfo->script_space_size < nscans) {
     cinfo->script_space_size = MAX(nscans, 10);
@@ -595,8 +636,10 @@ jpeg_simple_progression (j_compress_ptr cinfo)
   cinfo->scan_info = scanptr;
   cinfo->num_scans = nscans;
 
-  if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) {
+  if (ncomps == 3 &&
-    /* Custom script for YCbCr color images. */
+      (cinfo->jpeg_color_space == JCS_YCbCr ||
+       cinfo->jpeg_color_space == JCS_BG_YCC)) {
+    /* Custom script for YCC color images. */
     /* Initial DC scan */
     scanptr = fill_dc_scans(scanptr, ncomps, 0, 1);
     /* Initial AC scan: get some luma data out in a hurry */

jctrans.c

@@ -2,6 +2,7 @@
  * jctrans.c
  *
  * Copyright (C) 1995-1998, Thomas G. Lane.
+ * Modified 2000-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -76,11 +77,18 @@ jpeg_copy_critical_parameters (j_decompress_ptr srcinfo,
   dstinfo->image_height = srcinfo->image_height;
   dstinfo->input_components = srcinfo->num_components;
   dstinfo->in_color_space = srcinfo->jpeg_color_space;
+  dstinfo->jpeg_width = srcinfo->output_width;
+  dstinfo->jpeg_height = srcinfo->output_height;
+  dstinfo->min_DCT_h_scaled_size = srcinfo->min_DCT_h_scaled_size;
+  dstinfo->min_DCT_v_scaled_size = srcinfo->min_DCT_v_scaled_size;
   /* Initialize all parameters to default values */
   jpeg_set_defaults(dstinfo);
   /* jpeg_set_defaults may choose wrong colorspace, eg YCbCr if input is RGB.
    * Fix it to get the right header markers for the image colorspace.
+   * Note: Entropy table assignment in jpeg_set_colorspace depends
+   * on color_transform.
    */
+  dstinfo->color_transform = srcinfo->color_transform;
   jpeg_set_colorspace(dstinfo, srcinfo->jpeg_color_space);
   dstinfo->data_precision = srcinfo->data_precision;
   dstinfo->CCIR601_sampling = srcinfo->CCIR601_sampling;
@@ -125,7 +133,7 @@ jpeg_copy_critical_parameters (j_decompress_ptr srcinfo,
 	  ERREXIT1(dstinfo, JERR_MISMATCHED_QUANT_TABLE, tblno);
       }
     }
-    /* Note: we do not copy the source's Huffman table assignments;
+    /* Note: we do not copy the source's entropy table assignments;
      * instead we rely on jpeg_set_colorspace to have made a suitable choice.
      */
   }
@@ -135,10 +143,10 @@ jpeg_copy_critical_parameters (j_decompress_ptr srcinfo,
    * if the application chooses to copy JFIF 1.02 extension markers from
    * the source file, we need to copy the version to make sure we don't
    * emit a file that has 1.02 extensions but a claimed version of 1.01.
-   * We will *not*, however, copy version info from mislabeled "2.01" files.
    */
   if (srcinfo->saw_JFIF_marker) {
-    if (srcinfo->JFIF_major_version == 1) {
+    if (srcinfo->JFIF_major_version == 1 ||
+	srcinfo->JFIF_major_version == 2) {
       dstinfo->JFIF_major_version = srcinfo->JFIF_major_version;
       dstinfo->JFIF_minor_version = srcinfo->JFIF_minor_version;
     }
@@ -158,17 +166,13 @@ LOCAL(void)
 transencode_master_selection (j_compress_ptr cinfo,
 			      jvirt_barray_ptr * coef_arrays)
 {
-  /* Although we don't actually use input_components for transcoding,
-   * jcmaster.c's initial_setup will complain if input_components is 0.
-   */
-  cinfo->input_components = 1;
   /* Initialize master control (includes parameter checking/processing) */
   jinit_c_master_control(cinfo, TRUE /* transcode only */);
 
   /* Entropy encoding: either Huffman or arithmetic coding. */
-  if (cinfo->arith_code) {
+  if (cinfo->arith_code)
     jinit_arith_encoder(cinfo);
-  } else {
+  else {
     jinit_huff_encoder(cinfo);
   }
 
@@ -363,7 +367,7 @@ transencode_coef_controller (j_compress_ptr cinfo,
   coef = (my_coef_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_coef_controller));
-  cinfo->coef = (struct jpeg_c_coef_controller *) coef;
+  cinfo->coef = &coef->pub;
   coef->pub.start_pass = start_pass_coef;
   coef->pub.compress_data = compress_output;
 
@@ -374,7 +378,7 @@ transencode_coef_controller (j_compress_ptr cinfo,
   buffer = (JBLOCKROW)
     (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
-  jzero_far((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
+  FMEMZERO((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
   for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) {
     coef->dummy_buffer[i] = buffer + i;
   }

jdapimin.c

@@ -2,7 +2,7 @@
  * jdapimin.c
  *
  * Copyright (C) 1994-1998, Thomas G. Lane.
- * Modified 2009 by Guido Vollbeding.
+ * Modified 2009-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -114,8 +114,9 @@ jpeg_abort_decompress (j_decompress_ptr cinfo)
 LOCAL(void)
 default_decompress_parms (j_decompress_ptr cinfo)
 {
+  int cid0, cid1, cid2;
+
   /* Guess the input colorspace, and set output colorspace accordingly. */
-  /* (Wish JPEG committee had provided a real way to specify this...) */
   /* Note application may override our guesses. */
   switch (cinfo->num_components) {
   case 1:
@@ -124,9 +125,22 @@ default_decompress_parms (j_decompress_ptr cinfo)
     break;
     
   case 3:
-    if (cinfo->saw_JFIF_marker) {
+    cid0 = cinfo->comp_info[0].component_id;
-      cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */
+    cid1 = cinfo->comp_info[1].component_id;
-    } else if (cinfo->saw_Adobe_marker) {
+    cid2 = cinfo->comp_info[2].component_id;
+
+    /* First try to guess from the component IDs */
+    if      (cid0 == 0x01 && cid1 == 0x02 && cid2 == 0x03)
+      cinfo->jpeg_color_space = JCS_YCbCr;
+    else if (cid0 == 0x01 && cid1 == 0x22 && cid2 == 0x23)
+      cinfo->jpeg_color_space = JCS_BG_YCC;
+    else if (cid0 == 0x52 && cid1 == 0x47 && cid2 == 0x42)
+      cinfo->jpeg_color_space = JCS_RGB;	/* ASCII 'R', 'G', 'B' */
+    else if (cid0 == 0x72 && cid1 == 0x67 && cid2 == 0x62)
+      cinfo->jpeg_color_space = JCS_BG_RGB;	/* ASCII 'r', 'g', 'b' */
+    else if (cinfo->saw_JFIF_marker)
+      cinfo->jpeg_color_space = JCS_YCbCr;	/* assume it's YCbCr */
+    else if (cinfo->saw_Adobe_marker) {
       switch (cinfo->Adobe_transform) {
       case 0:
 	cinfo->jpeg_color_space = JCS_RGB;
@@ -140,20 +154,9 @@ default_decompress_parms (j_decompress_ptr cinfo)
 	break;
       }
     } else {
-      /* Saw no special markers, try to guess from the component IDs */
-      int cid0 = cinfo->comp_info[0].component_id;
-      int cid1 = cinfo->comp_info[1].component_id;
-      int cid2 = cinfo->comp_info[2].component_id;
-
-      if (cid0 == 1 && cid1 == 2 && cid2 == 3)
-	cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */
-      else if (cid0 == 82 && cid1 == 71 && cid2 == 66)
-	cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */
-      else {
       TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2);
       cinfo->jpeg_color_space = JCS_YCbCr;	/* assume it's YCbCr */
     }
-    }
     /* Always guess RGB is proper output colorspace. */
     cinfo->out_color_space = JCS_RGB;
     break;
@@ -186,8 +189,8 @@ default_decompress_parms (j_decompress_ptr cinfo)
   }
 
   /* Set defaults for other decompression parameters. */
-  cinfo->scale_num = DCTSIZE;		/* 1:1 scaling */
+  cinfo->scale_num = cinfo->block_size;		/* 1:1 scaling */
-  cinfo->scale_denom = DCTSIZE;
+  cinfo->scale_denom = cinfo->block_size;
   cinfo->output_gamma = 1.0;
   cinfo->buffered_image = FALSE;
   cinfo->raw_data_out = FALSE;

jdapistd.c

@@ -2,6 +2,7 @@
  * jdapistd.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2002-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *

jdarith.c

@@ -1,7 +1,7 @@
 /*
  * jdarith.c
  *
- * Developed 1997 by Guido Vollbeding.
+ * Developed 1997-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -37,6 +37,9 @@ typedef struct {
   /* Pointers to statistics areas (these workspaces have image lifespan) */
   unsigned char * dc_stats[NUM_ARITH_TBLS];
   unsigned char * ac_stats[NUM_ARITH_TBLS];
+
+  /* Statistics bin for coding with fixed probability 0.5 */
+  unsigned char fixed_bin[4];
 } arith_entropy_decoder;
 
 typedef arith_entropy_decoder * arith_entropy_ptr;
@@ -45,8 +48,6 @@ typedef arith_entropy_decoder * arith_entropy_ptr;
  * for the statistics area.
  * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least
  * 49 statistics bins for DC, and 245 statistics bins for AC coding.
- * Note that we use one additional AC bin for codings with fixed
- * probability (0.5), thus the minimum number for AC is 246.
  *
  * We use a compact representation with 1 byte per statistics bin,
  * thus the numbers directly represent byte sizes.
@@ -104,7 +105,6 @@ get_byte (j_decompress_ptr cinfo)
 LOCAL(int)
 arith_decode (j_decompress_ptr cinfo, unsigned char *st)
 {
-  extern const INT32 jaritab[];
   register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy;
   register unsigned char nl, nm;
   register INT32 qe, temp;
@@ -145,11 +145,11 @@ arith_decode (j_decompress_ptr cinfo, unsigned char *st)
     e->a <<= 1;
   }
 
-  /* Fetch values from our compact representation of Table D.2:
+  /* Fetch values from our compact representation of Table D.3(D.2):
    * Qe values and probability estimation state machine
    */
   sv = *st;
-  qe = jaritab[sv & 0x7F];	/* => Qe_Value */
+  qe = jpeg_aritab[sv & 0x7F];	/* => Qe_Value */
   nl = qe & 0xFF; qe >>= 8;	/* Next_Index_LPS + Switch_MPS */
   nm = qe & 0xFF; qe >>= 8;	/* Next_Index_MPS */
 
@@ -197,16 +197,17 @@ process_restart (j_decompress_ptr cinfo)
   if (! (*cinfo->marker->read_restart_marker) (cinfo))
     ERREXIT(cinfo, JERR_CANT_SUSPEND);
 
+  /* Re-initialize statistics areas */
   for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
     compptr = cinfo->cur_comp_info[ci];
-    /* Re-initialize statistics areas */
+    if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
-    if (cinfo->progressive_mode == 0 || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
       MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS);
       /* Reset DC predictions to 0 */
       entropy->last_dc_val[ci] = 0;
       entropy->dc_context[ci] = 0;
     }
-    if (cinfo->progressive_mode == 0 || cinfo->Ss) {
+    if ((! cinfo->progressive_mode && cinfo->lim_Se) ||
+	(cinfo->progressive_mode && cinfo->Ss)) {
       MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS);
     }
   }
@@ -288,9 +289,9 @@ decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	}
       }
       /* Section F.1.4.4.1.2: Establish dc_context conditioning category */
-      if (m < (int) (((INT32) 1 << cinfo->arith_dc_L[tbl]) >> 1))
+      if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1))
 	entropy->dc_context[ci] = 0;		   /* zero diff category */
-      else if (m > (int) (((INT32) 1 << cinfo->arith_dc_U[tbl]) >> 1))
+      else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1))
 	entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */
       else
 	entropy->dc_context[ci] = 4 + (sign * 4);  /* small diff category */
@@ -324,6 +325,7 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   unsigned char *st;
   int tbl, sign, k;
   int v, m;
+  const int * natural_order;
 
   /* Process restart marker if needed */
   if (cinfo->restart_interval) {
@@ -334,6 +336,8 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
   if (entropy->ct == -1) return TRUE;	/* if error do nothing */
 
+  natural_order = cinfo->natural_order;
+
   /* There is always only one block per MCU */
   block = MCU_data[0];
   tbl = cinfo->cur_comp_info[0]->ac_tbl_no;
@@ -341,12 +345,15 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */
 
   /* Figure F.20: Decode_AC_coefficients */
-  for (k = cinfo->Ss; k <= cinfo->Se; k++) {
+  k = cinfo->Ss - 1;
-    st = entropy->ac_stats[tbl] + 3 * (k - 1);
+  do {
+    st = entropy->ac_stats[tbl] + 3 * k;
     if (arith_decode(cinfo, st)) break;		/* EOB flag */
-    while (arith_decode(cinfo, st + 1) == 0) {
+    for (;;) {
-      st += 3; k++;
+      k++;
-      if (k > cinfo->Se) {
+      if (arith_decode(cinfo, st + 1)) break;
+      st += 3;
+      if (k >= cinfo->Se) {
 	WARNMS(cinfo, JWRN_ARITH_BAD_CODE);
 	entropy->ct = -1;			/* spectral overflow */
 	return TRUE;
@@ -354,8 +361,7 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
     }
     /* Figure F.21: Decoding nonzero value v */
     /* Figure F.22: Decoding the sign of v */
-    entropy->ac_stats[tbl][245] = 0;
+    sign = arith_decode(cinfo, entropy->fixed_bin);
-    sign = arith_decode(cinfo, entropy->ac_stats[tbl] + 245);
     st += 2;
     /* Figure F.23: Decoding the magnitude category of v */
     if ((m = arith_decode(cinfo, st)) != 0) {
@@ -380,8 +386,8 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
       if (arith_decode(cinfo, st)) v |= m;
     v += 1; if (sign) v = -v;
     /* Scale and output coefficient in natural (dezigzagged) order */
-    (*block)[jpeg_natural_order[k]] = (JCOEF) (v << cinfo->Al);
+    (*block)[natural_order[k]] = (JCOEF) (v << cinfo->Al);
-  }
+  } while (k < cinfo->Se);
 
   return TRUE;
 }
@@ -389,13 +395,15 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
 /*
  * MCU decoding for DC successive approximation refinement scan.
+ * Note: we assume such scans can be multi-component,
+ * although the spec is not very clear on the point.
  */
 
 METHODDEF(boolean)
 decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 {
   arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy;
-  unsigned char st[4];
+  unsigned char *st;
   int p1, blkn;
 
   /* Process restart marker if needed */
@@ -405,12 +413,12 @@ decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
     entropy->restarts_to_go--;
   }
 
+  st = entropy->fixed_bin;	/* use fixed probability estimation */
   p1 = 1 << cinfo->Al;		/* 1 in the bit position being coded */
 
   /* Outer loop handles each block in the MCU */
 
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    st[0] = 0;	/* use fixed probability estimation */
     /* Encoded data is simply the next bit of the two's-complement DC value */
     if (arith_decode(cinfo, st))
       MCU_data[blkn][0][0] |= p1;
@@ -433,6 +441,7 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   unsigned char *st;
   int tbl, k, kex;
   int p1, m1;
+  const int * natural_order;
 
   /* Process restart marker if needed */
   if (cinfo->restart_interval) {
@@ -443,6 +452,8 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
   if (entropy->ct == -1) return TRUE;	/* if error do nothing */
 
+  natural_order = cinfo->natural_order;
+
   /* There is always only one block per MCU */
   block = MCU_data[0];
   tbl = cinfo->cur_comp_info[0]->ac_tbl_no;
@@ -451,15 +462,18 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   m1 = (-1) << cinfo->Al;	/* -1 in the bit position being coded */
 
   /* Establish EOBx (previous stage end-of-block) index */
-  for (kex = cinfo->Se + 1; kex > 1; kex--)
+  kex = cinfo->Se;
-    if ((*block)[jpeg_natural_order[kex - 1]]) break;
+  do {
+    if ((*block)[natural_order[kex]]) break;
+  } while (--kex);
 
-  for (k = cinfo->Ss; k <= cinfo->Se; k++) {
+  k = cinfo->Ss - 1;
-    st = entropy->ac_stats[tbl] + 3 * (k - 1);
+  do {
+    st = entropy->ac_stats[tbl] + 3 * k;
     if (k >= kex)
       if (arith_decode(cinfo, st)) break;	/* EOB flag */
     for (;;) {
-      thiscoef = *block + jpeg_natural_order[k];
+      thiscoef = *block + natural_order[++k];
       if (*thiscoef) {				/* previously nonzero coef */
 	if (arith_decode(cinfo, st + 2)) {
 	  if (*thiscoef < 0)
@@ -470,21 +484,20 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	break;
       }
       if (arith_decode(cinfo, st + 1)) {	/* newly nonzero coef */
-	entropy->ac_stats[tbl][245] = 0;
+	if (arith_decode(cinfo, entropy->fixed_bin))
-	if (arith_decode(cinfo, entropy->ac_stats[tbl] + 245))
 	  *thiscoef = m1;
 	else
 	  *thiscoef = p1;
 	break;
       }
-      st += 3; k++;
+      st += 3;
-      if (k > cinfo->Se) {
+      if (k >= cinfo->Se) {
 	WARNMS(cinfo, JWRN_ARITH_BAD_CODE);
 	entropy->ct = -1;			/* spectral overflow */
 	return TRUE;
       }
     }
-  }
+  } while (k < cinfo->Se);
 
   return TRUE;
 }
@@ -503,6 +516,7 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   unsigned char *st;
   int blkn, ci, tbl, sign, k;
   int v, m;
+  const int * natural_order;
 
   /* Process restart marker if needed */
   if (cinfo->restart_interval) {
@@ -513,6 +527,8 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
   if (entropy->ct == -1) return TRUE;	/* if error do nothing */
 
+  natural_order = cinfo->natural_order;
+
   /* Outer loop handles each block in the MCU */
 
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
@@ -548,9 +564,9 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	}
       }
       /* Section F.1.4.4.1.2: Establish dc_context conditioning category */
-      if (m < (int) (((INT32) 1 << cinfo->arith_dc_L[tbl]) >> 1))
+      if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1))
 	entropy->dc_context[ci] = 0;		   /* zero diff category */
-      else if (m > (int) (((INT32) 1 << cinfo->arith_dc_U[tbl]) >> 1))
+      else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1))
 	entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */
       else
 	entropy->dc_context[ci] = 4 + (sign * 4);  /* small diff category */
@@ -567,15 +583,19 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
     /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */
 
+    if (cinfo->lim_Se == 0) continue;
     tbl = compptr->ac_tbl_no;
+    k = 0;
 
     /* Figure F.20: Decode_AC_coefficients */
-    for (k = 1; k < DCTSIZE2; k++) {
+    do {
-      st = entropy->ac_stats[tbl] + 3 * (k - 1);
+      st = entropy->ac_stats[tbl] + 3 * k;
       if (arith_decode(cinfo, st)) break;	/* EOB flag */
-      while (arith_decode(cinfo, st + 1) == 0) {
+      for (;;) {
-	st += 3; k++;
+	k++;
-	if (k >= DCTSIZE2) {
+	if (arith_decode(cinfo, st + 1)) break;
+	st += 3;
+	if (k >= cinfo->lim_Se) {
 	  WARNMS(cinfo, JWRN_ARITH_BAD_CODE);
 	  entropy->ct = -1;			/* spectral overflow */
 	  return TRUE;
@@ -583,8 +603,7 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
       }
       /* Figure F.21: Decoding nonzero value v */
       /* Figure F.22: Decoding the sign of v */
-      entropy->ac_stats[tbl][245] = 0;
+      sign = arith_decode(cinfo, entropy->fixed_bin);
-      sign = arith_decode(cinfo, entropy->ac_stats[tbl] + 245);
       st += 2;
       /* Figure F.23: Decoding the magnitude category of v */
       if ((m = arith_decode(cinfo, st)) != 0) {
@@ -608,8 +627,8 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
       while (m >>= 1)
 	if (arith_decode(cinfo, st)) v |= m;
       v += 1; if (sign) v = -v;
-      (*block)[jpeg_natural_order[k]] = (JCOEF) v;
+      (*block)[natural_order[k]] = (JCOEF) v;
-    }
+    } while (k < cinfo->lim_Se);
   }
 
   return TRUE;
@@ -634,7 +653,7 @@ start_pass (j_decompress_ptr cinfo)
 	goto bad;
     } else {
       /* need not check Ss/Se < 0 since they came from unsigned bytes */
-      if (cinfo->Se < cinfo->Ss || cinfo->Se >= DCTSIZE2)
+      if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se)
 	goto bad;
       /* AC scans may have only one component */
       if (cinfo->comps_in_scan != 1)
@@ -680,20 +699,19 @@ start_pass (j_decompress_ptr cinfo)
     }
   } else {
     /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG.
-     * This ought to be an error condition, but we make it a warning because
+     * This ought to be an error condition, but we make it a warning.
-     * there are some baseline files out there with all zeroes in these bytes.
      */
-    if (cinfo->Ss != 0 || cinfo->Se != DCTSIZE2-1 ||
+    if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 ||
-	cinfo->Ah != 0 || cinfo->Al != 0)
+	(cinfo->Se < DCTSIZE2 && cinfo->Se != cinfo->lim_Se))
       WARNMS(cinfo, JWRN_NOT_SEQUENTIAL);
     /* Select MCU decoding routine */
     entropy->pub.decode_mcu = decode_mcu;
   }
 
+  /* Allocate & initialize requested statistics areas */
   for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
     compptr = cinfo->cur_comp_info[ci];
-    /* Allocate & initialize requested statistics areas */
+    if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
-    if (cinfo->progressive_mode == 0 || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
       tbl = compptr->dc_tbl_no;
       if (tbl < 0 || tbl >= NUM_ARITH_TBLS)
 	ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl);
@@ -705,7 +723,8 @@ start_pass (j_decompress_ptr cinfo)
       entropy->last_dc_val[ci] = 0;
       entropy->dc_context[ci] = 0;
     }
-    if (cinfo->progressive_mode == 0 || cinfo->Ss) {
+    if ((! cinfo->progressive_mode && cinfo->lim_Se) ||
+	(cinfo->progressive_mode && cinfo->Ss)) {
       tbl = compptr->ac_tbl_no;
       if (tbl < 0 || tbl >= NUM_ARITH_TBLS)
 	ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl);
@@ -726,6 +745,17 @@ start_pass (j_decompress_ptr cinfo)
 }
 
 
+/*
+ * Finish up at the end of an arithmetic-compressed scan.
+ */
+
+METHODDEF(void)
+finish_pass (j_decompress_ptr cinfo)
+{
+  /* no work necessary here */
+}
+
+
 /*
  * Module initialization routine for arithmetic entropy decoding.
  */
@@ -739,8 +769,9 @@ jinit_arith_decoder (j_decompress_ptr cinfo)
   entropy = (arith_entropy_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(arith_entropy_decoder));
-  cinfo->entropy = (struct jpeg_entropy_decoder *) entropy;
+  cinfo->entropy = &entropy->pub;
   entropy->pub.start_pass = start_pass;
+  entropy->pub.finish_pass = finish_pass;
 
   /* Mark tables unallocated */
   for (i = 0; i < NUM_ARITH_TBLS; i++) {
@@ -748,6 +779,9 @@ jinit_arith_decoder (j_decompress_ptr cinfo)
     entropy->ac_stats[i] = NULL;
   }
 
+  /* Initialize index for fixed probability estimation */
+  entropy->fixed_bin[0] = 113;
+
   if (cinfo->progressive_mode) {
     /* Create progression status table */
     int *coef_bit_ptr, ci;

jdatadst.c

@@ -2,13 +2,14 @@
  * jdatadst.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2009-2012 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains compression data destination routines for the case of
- * emitting JPEG data to a file (or any stdio stream).  While these routines
+ * emitting JPEG data to memory or to a file (or any stdio stream).
- * are sufficient for most applications, some will want to use a different
+ * While these routines are sufficient for most applications,
- * destination manager.
+ * some will want to use a different destination manager.
  * IMPORTANT: we assume that fwrite() will correctly transcribe an array of
  * JOCTETs into 8-bit-wide elements on external storage.  If char is wider
  * than 8 bits on your machine, you may need to do some tweaking.
@@ -19,6 +20,11 @@
 #include "jpeglib.h"
 #include "jerror.h"
 
+#ifndef HAVE_STDLIB_H		/* <stdlib.h> should declare malloc(),free() */
+extern void * malloc JPP((size_t size));
+extern void free JPP((void *ptr));
+#endif
+
 
 /* Expanded data destination object for stdio output */
 
@@ -34,6 +40,21 @@ typedef my_destination_mgr * my_dest_ptr;
 #define OUTPUT_BUF_SIZE  4096	/* choose an efficiently fwrite'able size */
 
 
+/* Expanded data destination object for memory output */
+
+typedef struct {
+  struct jpeg_destination_mgr pub; /* public fields */
+
+  unsigned char ** outbuffer;	/* target buffer */
+  unsigned long * outsize;
+  unsigned char * newbuffer;	/* newly allocated buffer */
+  JOCTET * buffer;		/* start of buffer */
+  size_t bufsize;
+} my_mem_destination_mgr;
+
+typedef my_mem_destination_mgr * my_mem_dest_ptr;
+
+
 /*
  * Initialize destination --- called by jpeg_start_compress
  * before any data is actually written.
@@ -53,6 +74,12 @@ init_destination (j_compress_ptr cinfo)
   dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
 }
 
+METHODDEF(void)
+init_mem_destination (j_compress_ptr cinfo)
+{
+  /* no work necessary here */
+}
+
 
 /*
  * Empty the output buffer --- called whenever buffer fills up.
@@ -92,6 +119,36 @@ empty_output_buffer (j_compress_ptr cinfo)
   return TRUE;
 }
 
+METHODDEF(boolean)
+empty_mem_output_buffer (j_compress_ptr cinfo)
+{
+  size_t nextsize;
+  JOCTET * nextbuffer;
+  my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest;
+
+  /* Try to allocate new buffer with double size */
+  nextsize = dest->bufsize * 2;
+  nextbuffer = (JOCTET *) malloc(nextsize);
+
+  if (nextbuffer == NULL)
+    ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10);
+
+  MEMCOPY(nextbuffer, dest->buffer, dest->bufsize);
+
+  if (dest->newbuffer != NULL)
+    free(dest->newbuffer);
+
+  dest->newbuffer = nextbuffer;
+
+  dest->pub.next_output_byte = nextbuffer + dest->bufsize;
+  dest->pub.free_in_buffer = dest->bufsize;
+
+  dest->buffer = nextbuffer;
+  dest->bufsize = nextsize;
+
+  return TRUE;
+}
+
 
 /*
  * Terminate destination --- called by jpeg_finish_compress
@@ -119,6 +176,15 @@ term_destination (j_compress_ptr cinfo)
     ERREXIT(cinfo, JERR_FILE_WRITE);
 }
 
+METHODDEF(void)
+term_mem_destination (j_compress_ptr cinfo)
+{
+  my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest;
+
+  *dest->outbuffer = dest->buffer;
+  *dest->outsize = dest->bufsize - dest->pub.free_in_buffer;
+}
+
 
 /*
  * Prepare for output to a stdio stream.
@@ -149,3 +215,56 @@ jpeg_stdio_dest (j_compress_ptr cinfo, FILE * outfile)
   dest->pub.term_destination = term_destination;
   dest->outfile = outfile;
 }
+
+
+/*
+ * Prepare for output to a memory buffer.
+ * The caller may supply an own initial buffer with appropriate size.
+ * Otherwise, or when the actual data output exceeds the given size,
+ * the library adapts the buffer size as necessary.
+ * The standard library functions malloc/free are used for allocating
+ * larger memory, so the buffer is available to the application after
+ * finishing compression, and then the application is responsible for
+ * freeing the requested memory.
+ * Note:  An initial buffer supplied by the caller is expected to be
+ * managed by the application.  The library does not free such buffer
+ * when allocating a larger buffer.
+ */
+
+GLOBAL(void)
+jpeg_mem_dest (j_compress_ptr cinfo,
+	       unsigned char ** outbuffer, unsigned long * outsize)
+{
+  my_mem_dest_ptr dest;
+
+  if (outbuffer == NULL || outsize == NULL)	/* sanity check */
+    ERREXIT(cinfo, JERR_BUFFER_SIZE);
+
+  /* The destination object is made permanent so that multiple JPEG images
+   * can be written to the same buffer without re-executing jpeg_mem_dest.
+   */
+  if (cinfo->dest == NULL) {	/* first time for this JPEG object? */
+    cinfo->dest = (struct jpeg_destination_mgr *)
+      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
+				  SIZEOF(my_mem_destination_mgr));
+  }
+
+  dest = (my_mem_dest_ptr) cinfo->dest;
+  dest->pub.init_destination = init_mem_destination;
+  dest->pub.empty_output_buffer = empty_mem_output_buffer;
+  dest->pub.term_destination = term_mem_destination;
+  dest->outbuffer = outbuffer;
+  dest->outsize = outsize;
+  dest->newbuffer = NULL;
+
+  if (*outbuffer == NULL || *outsize == 0) {
+    /* Allocate initial buffer */
+    dest->newbuffer = *outbuffer = (unsigned char *) malloc(OUTPUT_BUF_SIZE);
+    if (dest->newbuffer == NULL)
+      ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10);
+    *outsize = OUTPUT_BUF_SIZE;
+  }
+
+  dest->pub.next_output_byte = dest->buffer = *outbuffer;
+  dest->pub.free_in_buffer = dest->bufsize = *outsize;
+}

jdatasrc.c

@@ -2,13 +2,14 @@
  * jdatasrc.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2009-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains decompression data source routines for the case of
- * reading JPEG data from a file (or any stdio stream).  While these routines
+ * reading JPEG data from memory or from a file (or any stdio stream).
- * are sufficient for most applications, some will want to use a different
+ * While these routines are sufficient for most applications,
- * source manager.
+ * some will want to use a different source manager.
  * IMPORTANT: we assume that fread() will correctly transcribe an array of
  * JOCTETs from 8-bit-wide elements on external storage.  If char is wider
  * than 8 bits on your machine, you may need to do some tweaking.
@@ -52,6 +53,12 @@ init_source (j_decompress_ptr cinfo)
   src->start_of_file = TRUE;
 }
 
+METHODDEF(void)
+init_mem_source (j_decompress_ptr cinfo)
+{
+  /* no work necessary here */
+}
+
 
 /*
  * Fill the input buffer --- called whenever buffer is emptied.
@@ -111,6 +118,27 @@ fill_input_buffer (j_decompress_ptr cinfo)
   return TRUE;
 }
 
+METHODDEF(boolean)
+fill_mem_input_buffer (j_decompress_ptr cinfo)
+{
+  static const JOCTET mybuffer[4] = {
+    (JOCTET) 0xFF, (JOCTET) JPEG_EOI, 0, 0
+  };
+
+  /* The whole JPEG data is expected to reside in the supplied memory
+   * buffer, so any request for more data beyond the given buffer size
+   * is treated as an error.
+   */
+  WARNMS(cinfo, JWRN_JPEG_EOF);
+
+  /* Insert a fake EOI marker */
+
+  cinfo->src->next_input_byte = mybuffer;
+  cinfo->src->bytes_in_buffer = 2;
+
+  return TRUE;
+}
+
 
 /*
  * Skip data --- used to skip over a potentially large amount of
@@ -127,22 +155,22 @@ fill_input_buffer (j_decompress_ptr cinfo)
 METHODDEF(void)
 skip_input_data (j_decompress_ptr cinfo, long num_bytes)
 {
-  my_src_ptr src = (my_src_ptr) cinfo->src;
+  struct jpeg_source_mgr * src = cinfo->src;
 
   /* Just a dumb implementation for now.  Could use fseek() except
    * it doesn't work on pipes.  Not clear that being smart is worth
    * any trouble anyway --- large skips are infrequent.
    */
   if (num_bytes > 0) {
-    while (num_bytes > (long) src->pub.bytes_in_buffer) {
+    while (num_bytes > (long) src->bytes_in_buffer) {
-      num_bytes -= (long) src->pub.bytes_in_buffer;
+      num_bytes -= (long) src->bytes_in_buffer;
-      (void) fill_input_buffer(cinfo);
+      (void) (*src->fill_input_buffer) (cinfo);
       /* note we assume that fill_input_buffer will never return FALSE,
        * so suspension need not be handled.
        */
     }
-    src->pub.next_input_byte += (size_t) num_bytes;
+    src->next_input_byte += (size_t) num_bytes;
-    src->pub.bytes_in_buffer -= (size_t) num_bytes;
+    src->bytes_in_buffer -= (size_t) num_bytes;
   }
 }
 
@@ -210,3 +238,38 @@ jpeg_stdio_src (j_decompress_ptr cinfo, FILE * infile)
   src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */
   src->pub.next_input_byte = NULL; /* until buffer loaded */
 }
+
+
+/*
+ * Prepare for input from a supplied memory buffer.
+ * The buffer must contain the whole JPEG data.
+ */
+
+GLOBAL(void)
+jpeg_mem_src (j_decompress_ptr cinfo,
+	      unsigned char * inbuffer, unsigned long insize)
+{
+  struct jpeg_source_mgr * src;
+
+  if (inbuffer == NULL || insize == 0)	/* Treat empty input as fatal error */
+    ERREXIT(cinfo, JERR_INPUT_EMPTY);
+
+  /* The source object is made permanent so that a series of JPEG images
+   * can be read from the same buffer by calling jpeg_mem_src only before
+   * the first one.
+   */
+  if (cinfo->src == NULL) {	/* first time for this JPEG object? */
+    cinfo->src = (struct jpeg_source_mgr *)
+      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
+				  SIZEOF(struct jpeg_source_mgr));
+  }
+
+  src = cinfo->src;
+  src->init_source = init_mem_source;
+  src->fill_input_buffer = fill_mem_input_buffer;
+  src->skip_input_data = skip_input_data;
+  src->resync_to_restart = jpeg_resync_to_restart; /* use default method */
+  src->term_source = term_source;
+  src->bytes_in_buffer = (size_t) insize;
+  src->next_input_byte = (JOCTET *) inbuffer;
+}

jdcoefct.c

@@ -2,6 +2,7 @@
  * jdcoefct.c
  *
  * Copyright (C) 1994-1997, Thomas G. Lane.
+ * Modified 2002-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -162,7 +163,8 @@ decompress_onepass (j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
     for (MCU_col_num = coef->MCU_ctr; MCU_col_num <= last_MCU_col;
 	 MCU_col_num++) {
       /* Try to fetch an MCU.  Entropy decoder expects buffer to be zeroed. */
-      jzero_far((void FAR *) coef->MCU_buffer[0],
+      if (cinfo->lim_Se)	/* can bypass in DC only case */
+	FMEMZERO((void FAR *) coef->MCU_buffer[0],
 		 (size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK)));
       if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) {
 	/* Suspension forced; update state counters and exit */
@@ -729,6 +731,9 @@ jinit_d_coef_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
     for (i = 0; i < D_MAX_BLOCKS_IN_MCU; i++) {
       coef->MCU_buffer[i] = buffer + i;
     }
+    if (cinfo->lim_Se == 0)	/* DC only case: want to bypass later */
+      FMEMZERO((void FAR *) buffer,
+	       (size_t) (D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)));
     coef->pub.consume_data = dummy_consume_data;
     coef->pub.decompress_data = decompress_onepass;
     coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */

jdcolor.c

@@ -2,6 +2,7 @@
  * jdcolor.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
+ * Modified 2011-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -18,27 +19,60 @@
 typedef struct {
   struct jpeg_color_deconverter pub; /* public fields */
 
-  /* Private state for YCC->RGB conversion */
+  /* Private state for YCbCr->RGB and BG_YCC->RGB conversion */
   int * Cr_r_tab;		/* => table for Cr to R conversion */
   int * Cb_b_tab;		/* => table for Cb to B conversion */
   INT32 * Cr_g_tab;		/* => table for Cr to G conversion */
   INT32 * Cb_g_tab;		/* => table for Cb to G conversion */
+
+  JSAMPLE * range_limit; /* pointer to normal sample range limit table, */
+		     /* or extended sample range limit table for BG_YCC */
+
+  /* Private state for RGB->Y conversion */
+  INT32 * rgb_y_tab;		/* => table for RGB to Y conversion */
 } my_color_deconverter;
 
 typedef my_color_deconverter * my_cconvert_ptr;
 
 
-/**************** YCbCr -> RGB conversion: most common case **************/
+/***************  YCbCr -> RGB conversion: most common case **************/
+/*************** BG_YCC -> RGB conversion: less common case **************/
+/***************    RGB -> Y   conversion: less common case **************/
 
 /*
- * YCbCr is defined per CCIR 601-1, except that Cb and Cr are
+ * YCbCr is defined per Recommendation ITU-R BT.601-7 (03/2011),
- * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
+ * previously known as Recommendation CCIR 601-1, except that Cb and Cr
- * The conversion equations to be implemented are therefore
+ * are normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
- *	R = Y                + 1.40200 * Cr
+ * sRGB (standard RGB color space) is defined per IEC 61966-2-1:1999.
- *	G = Y - 0.34414 * Cb - 0.71414 * Cr
+ * sYCC (standard luma-chroma-chroma color space with extended gamut)
- *	B = Y + 1.77200 * Cb
+ * is defined per IEC 61966-2-1:1999 Amendment A1:2003 Annex F.
+ * bg-sRGB and bg-sYCC (big gamut standard color spaces)
+ * are defined per IEC 61966-2-1:1999 Amendment A1:2003 Annex G.
+ * Note that the derived conversion coefficients given in some of these
+ * documents are imprecise.  The general conversion equations are
+ *
+ *	R = Y + K * (1 - Kr) * Cr
+ *	G = Y - K * (Kb * (1 - Kb) * Cb + Kr * (1 - Kr) * Cr) / (1 - Kr - Kb)
+ *	B = Y + K * (1 - Kb) * Cb
+ *
+ *	Y = Kr * R + (1 - Kr - Kb) * G + Kb * B
+ *
+ * With Kr = 0.299 and Kb = 0.114 (derived according to SMPTE RP 177-1993
+ * from the 1953 FCC NTSC primaries and CIE Illuminant C), K = 2 for sYCC,
+ * the conversion equations to be implemented are therefore
+ *
+ *	R = Y + 1.402 * Cr
+ *	G = Y - 0.344136286 * Cb - 0.714136286 * Cr
+ *	B = Y + 1.772 * Cb
+ *
+ *	Y = 0.299 * R + 0.587 * G + 0.114 * B
+ *
  * where Cb and Cr represent the incoming values less CENTERJSAMPLE.
- * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
+ * For bg-sYCC, with K = 4, the equations are
+ *
+ *	R = Y + 2.804 * Cr
+ *	G = Y - 0.688272572 * Cb - 1.428272572 * Cr
+ *	B = Y + 3.544 * Cb
  *
  * To avoid floating-point arithmetic, we represent the fractional constants
  * as integers scaled up by 2^16 (about 4 digits precision); we have to divide
@@ -49,9 +83,9 @@ typedef my_color_deconverter * my_cconvert_ptr;
  * For even more speed, we avoid doing any multiplications in the inner loop
  * by precalculating the constants times Cb and Cr for all possible values.
  * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
- * for 12-bit samples it is still acceptable.  It's not very reasonable for
+ * for 9-bit to 12-bit samples it is still acceptable.  It's not very
- * 16-bit samples, but if you want lossless storage you shouldn't be changing
+ * reasonable for 16-bit samples, but if you want lossless storage you
- * colorspace anyway.
+ * shouldn't be changing colorspace anyway.
  * The Cr=>R and Cb=>B values can be rounded to integers in advance; the
  * values for the G calculation are left scaled up, since we must add them
  * together before rounding.
@@ -61,13 +95,26 @@ typedef my_color_deconverter * my_cconvert_ptr;
 #define ONE_HALF	((INT32) 1 << (SCALEBITS-1))
 #define FIX(x)		((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
 
+/* We allocate one big table for RGB->Y conversion and divide it up into
+ * three parts, instead of doing three alloc_small requests.  This lets us
+ * use a single table base address, which can be held in a register in the
+ * inner loops on many machines (more than can hold all three addresses,
+ * anyway).
+ */
+
+#define R_Y_OFF		0			/* offset to R => Y section */
+#define G_Y_OFF		(1*(MAXJSAMPLE+1))	/* offset to G => Y section */
+#define B_Y_OFF		(2*(MAXJSAMPLE+1))	/* etc. */
+#define TABLE_SIZE	(3*(MAXJSAMPLE+1))
+
 
 /*
- * Initialize tables for YCC->RGB colorspace conversion.
+ * Initialize tables for YCbCr->RGB and BG_YCC->RGB colorspace conversion.
  */
 
 LOCAL(void)
 build_ycc_rgb_table (j_decompress_ptr cinfo)
+/* Normal case, sYCC */
 {
   my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
   int i;
@@ -87,24 +134,84 @@ build_ycc_rgb_table (j_decompress_ptr cinfo)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				(MAXJSAMPLE+1) * SIZEOF(INT32));
 
+  cconvert->range_limit = cinfo->sample_range_limit;
+
   for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
     /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
     /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
-    /* Cr=>R value is nearest int to 1.40200 * x */
+    /* Cr=>R value is nearest int to 1.402 * x */
     cconvert->Cr_r_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
+		    RIGHT_SHIFT(FIX(1.402) * x + ONE_HALF, SCALEBITS);
-    /* Cb=>B value is nearest int to 1.77200 * x */
+    /* Cb=>B value is nearest int to 1.772 * x */
     cconvert->Cb_b_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS);
+		    RIGHT_SHIFT(FIX(1.772) * x + ONE_HALF, SCALEBITS);
-    /* Cr=>G value is scaled-up -0.71414 * x */
+    /* Cr=>G value is scaled-up -0.714136286 * x */
-    cconvert->Cr_g_tab[i] = (- FIX(0.71414)) * x;
+    cconvert->Cr_g_tab[i] = (- FIX(0.714136286)) * x;
-    /* Cb=>G value is scaled-up -0.34414 * x */
+    /* Cb=>G value is scaled-up -0.344136286 * x */
     /* We also add in ONE_HALF so that need not do it in inner loop */
-    cconvert->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF;
+    cconvert->Cb_g_tab[i] = (- FIX(0.344136286)) * x + ONE_HALF;
   }
 }
 
 
+LOCAL(void)
+build_bg_ycc_rgb_table (j_decompress_ptr cinfo)
+/* Wide gamut case, bg-sYCC */
+{
+  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+  int i;
+  INT32 x;
+  SHIFT_TEMPS
+
+  cconvert->Cr_r_tab = (int *)
+    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+				(MAXJSAMPLE+1) * SIZEOF(int));
+  cconvert->Cb_b_tab = (int *)
+    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+				(MAXJSAMPLE+1) * SIZEOF(int));
+  cconvert->Cr_g_tab = (INT32 *)
+    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+				(MAXJSAMPLE+1) * SIZEOF(INT32));
+  cconvert->Cb_g_tab = (INT32 *)
+    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+				(MAXJSAMPLE+1) * SIZEOF(INT32));
+
+  cconvert->range_limit = (JSAMPLE *)
+    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+				5 * (MAXJSAMPLE+1) * SIZEOF(JSAMPLE));
+
+  for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
+    /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
+    /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
+    /* Cr=>R value is nearest int to 2.804 * x */
+    cconvert->Cr_r_tab[i] = (int)
+		    RIGHT_SHIFT(FIX(2.804) * x + ONE_HALF, SCALEBITS);
+    /* Cb=>B value is nearest int to 3.544 * x */
+    cconvert->Cb_b_tab[i] = (int)
+		    RIGHT_SHIFT(FIX(3.544) * x + ONE_HALF, SCALEBITS);
+    /* Cr=>G value is scaled-up -1.428272572 * x */
+    cconvert->Cr_g_tab[i] = (- FIX(1.428272572)) * x;
+    /* Cb=>G value is scaled-up -0.688272572 * x */
+    /* We also add in ONE_HALF so that need not do it in inner loop */
+    cconvert->Cb_g_tab[i] = (- FIX(0.688272572)) * x + ONE_HALF;
+  }
+
+  /* Cb and Cr portions can extend to double range in wide gamut case,
+   * so we prepare an appropriate extended range limit table.
+   */
+
+  /* First segment of range limit table: limit[x] = 0 for x < 0 */
+  MEMZERO(cconvert->range_limit, 2 * (MAXJSAMPLE+1) * SIZEOF(JSAMPLE));
+  cconvert->range_limit += 2 * (MAXJSAMPLE+1);
+  /* Main part of range limit table: limit[x] = x */
+  for (i = 0; i <= MAXJSAMPLE; i++)
+    cconvert->range_limit[i] = (JSAMPLE) i;
+  /* End of range limit table: limit[x] = MAXJSAMPLE for x > MAXJSAMPLE */
+  for (; i < 3 * (MAXJSAMPLE+1); i++)
+    cconvert->range_limit[i] = MAXJSAMPLE;
+}
+
+
 /*
  * Convert some rows of samples to the output colorspace.
  *
@@ -128,7 +235,7 @@ ycc_rgb_convert (j_decompress_ptr cinfo,
   register JDIMENSION col;
   JDIMENSION num_cols = cinfo->output_width;
   /* copy these pointers into registers if possible */
-  register JSAMPLE * range_limit = cinfo->sample_range_limit;
+  register JSAMPLE * range_limit = cconvert->range_limit;
   register int * Crrtab = cconvert->Cr_r_tab;
   register int * Cbbtab = cconvert->Cb_b_tab;
   register INT32 * Crgtab = cconvert->Cr_g_tab;
@@ -145,7 +252,9 @@ ycc_rgb_convert (j_decompress_ptr cinfo,
       y  = GETJSAMPLE(inptr0[col]);
       cb = GETJSAMPLE(inptr1[col]);
       cr = GETJSAMPLE(inptr2[col]);
-      /* Range-limiting is essential due to noise introduced by DCT losses. */
+      /* Range-limiting is essential due to noise introduced by DCT losses,
+       * for extended gamut (sYCC) and wide gamut (bg-sYCC) encodings.
+       */
       outptr[RGB_RED]   = range_limit[y + Crrtab[cr]];
       outptr[RGB_GREEN] = range_limit[y +
 			      ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
@@ -157,7 +266,182 @@ ycc_rgb_convert (j_decompress_ptr cinfo,
 }
 
 
-/**************** Cases other than YCbCr -> RGB **************/
+/**************** Cases other than YCC -> RGB ****************/
+
+
+/*
+ * Initialize for RGB->grayscale colorspace conversion.
+ */
+
+LOCAL(void)
+build_rgb_y_table (j_decompress_ptr cinfo)
+{
+  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+  INT32 * rgb_y_tab;
+  INT32 i;
+
+  /* Allocate and fill in the conversion tables. */
+  cconvert->rgb_y_tab = rgb_y_tab = (INT32 *)
+    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+				(TABLE_SIZE * SIZEOF(INT32)));
+
+  for (i = 0; i <= MAXJSAMPLE; i++) {
+    rgb_y_tab[i+R_Y_OFF] = FIX(0.299) * i;
+    rgb_y_tab[i+G_Y_OFF] = FIX(0.587) * i;
+    rgb_y_tab[i+B_Y_OFF] = FIX(0.114) * i + ONE_HALF;
+  }
+}
+
+
+/*
+ * Convert RGB to grayscale.
+ */
+
+METHODDEF(void)
+rgb_gray_convert (j_decompress_ptr cinfo,
+		  JSAMPIMAGE input_buf, JDIMENSION input_row,
+		  JSAMPARRAY output_buf, int num_rows)
+{
+  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+  register INT32 * ctab = cconvert->rgb_y_tab;
+  register int r, g, b;
+  register JSAMPROW outptr;
+  register JSAMPROW inptr0, inptr1, inptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->output_width;
+
+  while (--num_rows >= 0) {
+    inptr0 = input_buf[0][input_row];
+    inptr1 = input_buf[1][input_row];
+    inptr2 = input_buf[2][input_row];
+    input_row++;
+    outptr = *output_buf++;
+    for (col = 0; col < num_cols; col++) {
+      r = GETJSAMPLE(inptr0[col]);
+      g = GETJSAMPLE(inptr1[col]);
+      b = GETJSAMPLE(inptr2[col]);
+      /* Y */
+      outptr[col] = (JSAMPLE)
+		((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
+		 >> SCALEBITS);
+    }
+  }
+}
+
+
+/*
+ * [R-G,G,B-G] to [R,G,B] conversion with modulo calculation
+ * (inverse color transform).
+ * This can be seen as an adaption of the general YCbCr->RGB
+ * conversion equation with Kr = Kb = 0, while replacing the
+ * normalization by modulo calculation.
+ */
+
+METHODDEF(void)
+rgb1_rgb_convert (j_decompress_ptr cinfo,
+		  JSAMPIMAGE input_buf, JDIMENSION input_row,
+		  JSAMPARRAY output_buf, int num_rows)
+{
+  register int r, g, b;
+  register JSAMPROW outptr;
+  register JSAMPROW inptr0, inptr1, inptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->output_width;
+
+  while (--num_rows >= 0) {
+    inptr0 = input_buf[0][input_row];
+    inptr1 = input_buf[1][input_row];
+    inptr2 = input_buf[2][input_row];
+    input_row++;
+    outptr = *output_buf++;
+    for (col = 0; col < num_cols; col++) {
+      r = GETJSAMPLE(inptr0[col]);
+      g = GETJSAMPLE(inptr1[col]);
+      b = GETJSAMPLE(inptr2[col]);
+      /* Assume that MAXJSAMPLE+1 is a power of 2, so that the MOD
+       * (modulo) operator is equivalent to the bitmask operator AND.
+       */
+      outptr[RGB_RED]   = (JSAMPLE) ((r + g - CENTERJSAMPLE) & MAXJSAMPLE);
+      outptr[RGB_GREEN] = (JSAMPLE) g;
+      outptr[RGB_BLUE]  = (JSAMPLE) ((b + g - CENTERJSAMPLE) & MAXJSAMPLE);
+      outptr += RGB_PIXELSIZE;
+    }
+  }
+}
+
+
+/*
+ * [R-G,G,B-G] to grayscale conversion with modulo calculation
+ * (inverse color transform).
+ */
+
+METHODDEF(void)
+rgb1_gray_convert (j_decompress_ptr cinfo,
+		   JSAMPIMAGE input_buf, JDIMENSION input_row,
+		   JSAMPARRAY output_buf, int num_rows)
+{
+  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+  register INT32 * ctab = cconvert->rgb_y_tab;
+  register int r, g, b;
+  register JSAMPROW outptr;
+  register JSAMPROW inptr0, inptr1, inptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->output_width;
+
+  while (--num_rows >= 0) {
+    inptr0 = input_buf[0][input_row];
+    inptr1 = input_buf[1][input_row];
+    inptr2 = input_buf[2][input_row];
+    input_row++;
+    outptr = *output_buf++;
+    for (col = 0; col < num_cols; col++) {
+      r = GETJSAMPLE(inptr0[col]);
+      g = GETJSAMPLE(inptr1[col]);
+      b = GETJSAMPLE(inptr2[col]);
+      /* Assume that MAXJSAMPLE+1 is a power of 2, so that the MOD
+       * (modulo) operator is equivalent to the bitmask operator AND.
+       */
+      r = (r + g - CENTERJSAMPLE) & MAXJSAMPLE;
+      b = (b + g - CENTERJSAMPLE) & MAXJSAMPLE;
+      /* Y */
+      outptr[col] = (JSAMPLE)
+		((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
+		 >> SCALEBITS);
+    }
+  }
+}
+
+
+/*
+ * No colorspace change, but conversion from separate-planes
+ * to interleaved representation.
+ */
+
+METHODDEF(void)
+rgb_convert (j_decompress_ptr cinfo,
+	     JSAMPIMAGE input_buf, JDIMENSION input_row,
+	     JSAMPARRAY output_buf, int num_rows)
+{
+  register JSAMPROW outptr;
+  register JSAMPROW inptr0, inptr1, inptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->output_width;
+
+  while (--num_rows >= 0) {
+    inptr0 = input_buf[0][input_row];
+    inptr1 = input_buf[1][input_row];
+    inptr2 = input_buf[2][input_row];
+    input_row++;
+    outptr = *output_buf++;
+    for (col = 0; col < num_cols; col++) {
+      /* We can dispense with GETJSAMPLE() here */
+      outptr[RGB_RED]   = inptr0[col];
+      outptr[RGB_GREEN] = inptr1[col];
+      outptr[RGB_BLUE]  = inptr2[col];
+      outptr += RGB_PIXELSIZE;
+    }
+  }
+}
 
 
 /*
@@ -170,19 +454,20 @@ null_convert (j_decompress_ptr cinfo,
 	      JSAMPIMAGE input_buf, JDIMENSION input_row,
 	      JSAMPARRAY output_buf, int num_rows)
 {
-  register JSAMPROW inptr, outptr;
-  register JDIMENSION count;
-  register int num_components = cinfo->num_components;
-  JDIMENSION num_cols = cinfo->output_width;
   int ci;
+  register int nc = cinfo->num_components;
+  register JSAMPROW outptr;
+  register JSAMPROW inptr;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->output_width;
 
   while (--num_rows >= 0) {
-    for (ci = 0; ci < num_components; ci++) {
+    for (ci = 0; ci < nc; ci++) {
       inptr = input_buf[ci][input_row];
       outptr = output_buf[0] + ci;
-      for (count = num_cols; count > 0; count--) {
+      for (col = 0; col < num_cols; col++) {
 	*outptr = *inptr++;	/* needn't bother with GETJSAMPLE() here */
-	outptr += num_components;
+	outptr += nc;
       }
     }
     input_row++;
@@ -193,7 +478,7 @@ null_convert (j_decompress_ptr cinfo,
 
 /*
  * Color conversion for grayscale: just copy the data.
- * This also works for YCbCr -> grayscale conversion, in which
+ * This also works for YCC -> grayscale conversion, in which
  * we just copy the Y (luminance) component and ignore chrominance.
  */
 
@@ -218,7 +503,8 @@ gray_rgb_convert (j_decompress_ptr cinfo,
 		  JSAMPIMAGE input_buf, JDIMENSION input_row,
 		  JSAMPARRAY output_buf, int num_rows)
 {
-  register JSAMPROW inptr, outptr;
+  register JSAMPROW outptr;
+  register JSAMPROW inptr;
   register JDIMENSION col;
   JDIMENSION num_cols = cinfo->output_width;
 
@@ -271,7 +557,9 @@ ycck_cmyk_convert (j_decompress_ptr cinfo,
       y  = GETJSAMPLE(inptr0[col]);
       cb = GETJSAMPLE(inptr1[col]);
       cr = GETJSAMPLE(inptr2[col]);
-      /* Range-limiting is essential due to noise introduced by DCT losses. */
+      /* Range-limiting is essential due to noise introduced by DCT losses,
+       * and for extended gamut encodings (sYCC).
+       */
       outptr[0] = range_limit[MAXJSAMPLE - (y + Crrtab[cr])];	/* red */
       outptr[1] = range_limit[MAXJSAMPLE - (y +			/* green */
 			      ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
@@ -309,7 +597,7 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
   cconvert = (my_cconvert_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_color_deconverter));
-  cinfo->cconvert = (struct jpeg_color_deconverter *) cconvert;
+  cinfo->cconvert = &cconvert->pub;
   cconvert->pub.start_pass = start_pass_dcolor;
 
   /* Make sure num_components agrees with jpeg_color_space */
@@ -321,6 +609,8 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
 
   case JCS_RGB:
   case JCS_YCbCr:
+  case JCS_BG_RGB:
+  case JCS_BG_YCC:
     if (cinfo->num_components != 3)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
     break;
@@ -337,6 +627,12 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
     break;
   }
 
+  /* Support color transform only for RGB colorspaces */
+  if (cinfo->color_transform &&
+      cinfo->jpeg_color_space != JCS_RGB &&
+      cinfo->jpeg_color_space != JCS_BG_RGB)
+    ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+
   /* Set out_color_components and conversion method based on requested space.
    * Also clear the component_needed flags for any unused components,
    * so that earlier pipeline stages can avoid useless computation.
@@ -345,38 +641,94 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
   switch (cinfo->out_color_space) {
   case JCS_GRAYSCALE:
     cinfo->out_color_components = 1;
-    if (cinfo->jpeg_color_space == JCS_GRAYSCALE ||
+    switch (cinfo->jpeg_color_space) {
-	cinfo->jpeg_color_space == JCS_YCbCr) {
+    case JCS_GRAYSCALE:
+    case JCS_YCbCr:
+    case JCS_BG_YCC:
       cconvert->pub.color_convert = grayscale_convert;
       /* For color->grayscale conversion, only the Y (0) component is needed */
       for (ci = 1; ci < cinfo->num_components; ci++)
 	cinfo->comp_info[ci].component_needed = FALSE;
-    } else
+      break;
+    case JCS_RGB:
+      switch (cinfo->color_transform) {
+      case JCT_NONE:
+	cconvert->pub.color_convert = rgb_gray_convert;
+	break;
+      case JCT_SUBTRACT_GREEN:
+	cconvert->pub.color_convert = rgb1_gray_convert;
+	break;
+      default:
 	ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+      }
+      build_rgb_y_table(cinfo);
+      break;
+    default:
+      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+    }
     break;
 
   case JCS_RGB:
     cinfo->out_color_components = RGB_PIXELSIZE;
-    if (cinfo->jpeg_color_space == JCS_YCbCr) {
+    switch (cinfo->jpeg_color_space) {
+    case JCS_GRAYSCALE:
+      cconvert->pub.color_convert = gray_rgb_convert;
+      break;
+    case JCS_YCbCr:
       cconvert->pub.color_convert = ycc_rgb_convert;
       build_ycc_rgb_table(cinfo);
-    } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
+      break;
-      cconvert->pub.color_convert = gray_rgb_convert;
+    case JCS_BG_YCC:
-    } else if (cinfo->jpeg_color_space == JCS_RGB && RGB_PIXELSIZE == 3) {
+      cconvert->pub.color_convert = ycc_rgb_convert;
-      cconvert->pub.color_convert = null_convert;
+      build_bg_ycc_rgb_table(cinfo);
+      break;
+    case JCS_RGB:
+      switch (cinfo->color_transform) {
+      case JCT_NONE:
+	cconvert->pub.color_convert = rgb_convert;
+	break;
+      case JCT_SUBTRACT_GREEN:
+	cconvert->pub.color_convert = rgb1_rgb_convert;
+	break;
+      default:
+	ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+      }
+      break;
+    default:
+      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+    }
+    break;
+
+  case JCS_BG_RGB:
+    cinfo->out_color_components = RGB_PIXELSIZE;
+    if (cinfo->jpeg_color_space == JCS_BG_RGB) {
+      switch (cinfo->color_transform) {
+      case JCT_NONE:
+	cconvert->pub.color_convert = rgb_convert;
+	break;
+      case JCT_SUBTRACT_GREEN:
+	cconvert->pub.color_convert = rgb1_rgb_convert;
+	break;
+      default:
+	ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+      }
     } else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
 
   case JCS_CMYK:
     cinfo->out_color_components = 4;
-    if (cinfo->jpeg_color_space == JCS_YCCK) {
+    switch (cinfo->jpeg_color_space) {
+    case JCS_YCCK:
       cconvert->pub.color_convert = ycck_cmyk_convert;
       build_ycc_rgb_table(cinfo);
-    } else if (cinfo->jpeg_color_space == JCS_CMYK) {
+      break;
+    case JCS_CMYK:
       cconvert->pub.color_convert = null_convert;
-    } else
+      break;
+    default:
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+    }
     break;
 
   default:

jddctmgr.c

@@ -2,6 +2,7 @@
  * jddctmgr.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2002-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -324,6 +325,7 @@ start_pass (j_decompress_ptr cinfo)
 	 * coefficients scaled by scalefactor[row]*scalefactor[col], where
 	 *   scalefactor[0] = 1
 	 *   scalefactor[k] = cos(k*PI/16) * sqrt(2)    for k=1..7
+	 * We apply a further scale factor of 1/8.
 	 */
 	FLOAT_MULT_TYPE * fmtbl = (FLOAT_MULT_TYPE *) compptr->dct_table;
 	int row, col;
@@ -337,7 +339,7 @@ start_pass (j_decompress_ptr cinfo)
 	  for (col = 0; col < DCTSIZE; col++) {
 	    fmtbl[i] = (FLOAT_MULT_TYPE)
 	      ((double) qtbl->quantval[i] *
-	       aanscalefactor[row] * aanscalefactor[col]);
+	       aanscalefactor[row] * aanscalefactor[col] * 0.125);
 	    i++;
 	  }
 	}
@@ -366,7 +368,7 @@ jinit_inverse_dct (j_decompress_ptr cinfo)
   idct = (my_idct_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_idct_controller));
-  cinfo->idct = (struct jpeg_inverse_dct *) idct;
+  cinfo->idct = &idct->pub;
   idct->pub.start_pass = start_pass;
 
   for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;

jdhuff.c

@@ -2,7 +2,7 @@
  * jdhuff.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2006-2009 by Guido Vollbeding.
+ * Modified 2006-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -229,6 +229,7 @@ typedef struct {
   savable_state saved;		/* Other state at start of MCU */
 
   /* These fields are NOT loaded into local working state. */
+  boolean insufficient_data;	/* set TRUE after emitting warning */
   unsigned int restarts_to_go;	/* MCUs left in this restart interval */
 
   /* Following two fields used only in progressive mode */
@@ -267,6 +268,51 @@ static const int jpeg_zigzag_order[8][8] = {
   { 35, 36, 48, 49, 57, 58, 62, 63 }
 };
 
+static const int jpeg_zigzag_order7[7][7] = {
+  {  0,  1,  5,  6, 14, 15, 27 },
+  {  2,  4,  7, 13, 16, 26, 28 },
+  {  3,  8, 12, 17, 25, 29, 38 },
+  {  9, 11, 18, 24, 30, 37, 39 },
+  { 10, 19, 23, 31, 36, 40, 45 },
+  { 20, 22, 32, 35, 41, 44, 46 },
+  { 21, 33, 34, 42, 43, 47, 48 }
+};
+
+static const int jpeg_zigzag_order6[6][6] = {
+  {  0,  1,  5,  6, 14, 15 },
+  {  2,  4,  7, 13, 16, 25 },
+  {  3,  8, 12, 17, 24, 26 },
+  {  9, 11, 18, 23, 27, 32 },
+  { 10, 19, 22, 28, 31, 33 },
+  { 20, 21, 29, 30, 34, 35 }
+};
+
+static const int jpeg_zigzag_order5[5][5] = {
+  {  0,  1,  5,  6, 14 },
+  {  2,  4,  7, 13, 15 },
+  {  3,  8, 12, 16, 21 },
+  {  9, 11, 17, 20, 22 },
+  { 10, 18, 19, 23, 24 }
+};
+
+static const int jpeg_zigzag_order4[4][4] = {
+  { 0,  1,  5,  6 },
+  { 2,  4,  7, 12 },
+  { 3,  8, 11, 13 },
+  { 9, 10, 14, 15 }
+};
+
+static const int jpeg_zigzag_order3[3][3] = {
+  { 0, 1, 5 },
+  { 2, 4, 6 },
+  { 3, 7, 8 }
+};
+
+static const int jpeg_zigzag_order2[2][2] = {
+  { 0, 1 },
+  { 2, 3 }
+};
+
 
 /*
  * Compute the derived values for a Huffman table.
@@ -496,9 +542,9 @@ jpeg_fill_bit_buffer (bitread_working_state * state,
        * We use a nonvolatile flag to ensure that only one warning message
        * appears per data segment.
        */
-      if (! cinfo->entropy->insufficient_data) {
+      if (! ((huff_entropy_ptr) cinfo->entropy)->insufficient_data) {
 	WARNMS(cinfo, JWRN_HIT_MARKER);
-	cinfo->entropy->insufficient_data = TRUE;
+	((huff_entropy_ptr) cinfo->entropy)->insufficient_data = TRUE;
       }
       /* Fill the buffer with zero bits */
       get_buffer <<= MIN_GET_BITS - bits_left;
@@ -581,6 +627,22 @@ jpeg_huff_decode (bitread_working_state * state,
 }
 
 
+/*
+ * Finish up at the end of a Huffman-compressed scan.
+ */
+
+METHODDEF(void)
+finish_pass_huff (j_decompress_ptr cinfo)
+{
+  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
+
+  /* Throw away any unused bits remaining in bit buffer; */
+  /* include any full bytes in next_marker's count of discarded bytes */
+  cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8;
+  entropy->bitstate.bits_left = 0;
+}
+
+
 /*
  * Check for a restart marker & resynchronize decoder.
  * Returns FALSE if must suspend.
@@ -592,10 +654,7 @@ process_restart (j_decompress_ptr cinfo)
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
   int ci;
 
-  /* Throw away any unused bits remaining in bit buffer; */
+  finish_pass_huff(cinfo);
-  /* include any full bytes in next_marker's count of discarded bytes */
-  cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8;
-  entropy->bitstate.bits_left = 0;
 
   /* Advance past the RSTn marker */
   if (! (*cinfo->marker->read_restart_marker) (cinfo))
@@ -616,7 +675,7 @@ process_restart (j_decompress_ptr cinfo)
    * leaving the flag set.
    */
   if (cinfo->unread_marker == 0)
-    entropy->pub.insufficient_data = FALSE;
+    entropy->insufficient_data = FALSE;
 
   return TRUE;
 }
@@ -668,7 +727,7 @@ decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   /* If we've run out of data, just leave the MCU set to zeroes.
    * This way, we return uniform gray for the remainder of the segment.
    */
-  if (! entropy->pub.insufficient_data) {
+  if (! entropy->insufficient_data) {
 
     /* Load up working state */
     BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
@@ -720,10 +779,10 @@ METHODDEF(boolean)
 decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 {   
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int Se = cinfo->Se;
-  int Al = cinfo->Al;
   register int s, k, r;
   unsigned int EOBRUN;
+  int Se, Al;
+  const int * natural_order;
   JBLOCKROW block;
   BITREAD_STATE_VARS;
   d_derived_tbl * tbl;
@@ -738,7 +797,11 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   /* If we've run out of data, just leave the MCU set to zeroes.
    * This way, we return uniform gray for the remainder of the segment.
    */
-  if (! entropy->pub.insufficient_data) {
+  if (! entropy->insufficient_data) {
+
+    Se = cinfo->Se;
+    Al = cinfo->Al;
+    natural_order = cinfo->natural_order;
 
     /* Load up working state.
      * We can avoid loading/saving bitread state if in an EOB run.
@@ -747,7 +810,7 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
     /* There is always only one block per MCU */
 
-    if (EOBRUN > 0)		/* if it's a band of zeroes... */
+    if (EOBRUN)			/* if it's a band of zeroes... */
       EOBRUN--;			/* ...process it now (we do nothing) */
     else {
       BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
@@ -764,20 +827,19 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	  r = GET_BITS(s);
 	  s = HUFF_EXTEND(r, s);
 	  /* Scale and output coefficient in natural (dezigzagged) order */
-	  (*block)[jpeg_natural_order[k]] = (JCOEF) (s << Al);
+	  (*block)[natural_order[k]] = (JCOEF) (s << Al);
 	} else {
-	  if (r == 15) {	/* ZRL */
+	  if (r != 15) {	/* EOBr, run length is 2^r + appended bits */
-	    k += 15;		/* skip 15 zeroes in band */
-	  } else {		/* EOBr, run length is 2^r + appended bits */
-	    EOBRUN = 1 << r;
 	    if (r) {		/* EOBr, r > 0 */
+	      EOBRUN = 1 << r;
 	      CHECK_BIT_BUFFER(br_state, r, return FALSE);
 	      r = GET_BITS(r);
 	      EOBRUN += r;
-	    }
 	      EOBRUN--;		/* this band is processed at this moment */
+	    }
 	    break;		/* force end-of-band */
 	  }
+	  k += 15;		/* ZRL: skip 15 zeroes in band */
 	}
       }
 
@@ -797,17 +859,15 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
 /*
  * MCU decoding for DC successive approximation refinement scan.
- * Note: we assume such scans can be multi-component, although the spec
+ * Note: we assume such scans can be multi-component,
- * is not very clear on the point.
+ * although the spec is not very clear on the point.
  */
 
 METHODDEF(boolean)
 decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 {   
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
+  int p1, blkn;
-  int blkn;
-  JBLOCKROW block;
   BITREAD_STATE_VARS;
 
   /* Process restart marker if needed; may have to suspend */
@@ -824,15 +884,15 @@ decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   /* Load up working state */
   BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
 
+  p1 = 1 << cinfo->Al;		/* 1 in the bit position being coded */
+
   /* Outer loop handles each block in the MCU */
 
   for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    block = MCU_data[blkn];
-
     /* Encoded data is simply the next bit of the two's-complement DC value */
     CHECK_BIT_BUFFER(br_state, 1, return FALSE);
     if (GET_BITS(1))
-      (*block)[0] |= p1;
+      MCU_data[blkn][0][0] |= p1;
     /* Note: since we use |=, repeating the assignment later is safe */
   }
 
@@ -854,11 +914,10 @@ METHODDEF(boolean)
 decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 {   
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int Se = cinfo->Se;
-  int p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
-  int m1 = (-1) << cinfo->Al;	/* -1 in the bit position being coded */
   register int s, k, r;
   unsigned int EOBRUN;
+  int Se, p1, m1;
+  const int * natural_order;
   JBLOCKROW block;
   JCOEFPTR thiscoef;
   BITREAD_STATE_VARS;
@@ -875,7 +934,12 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
   /* If we've run out of data, don't modify the MCU.
    */
-  if (! entropy->pub.insufficient_data) {
+  if (! entropy->insufficient_data) {
+
+    Se = cinfo->Se;
+    p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
+    m1 = (-1) << cinfo->Al;	/* -1 in the bit position being coded */
+    natural_order = cinfo->natural_order;
 
     /* Load up working state */
     BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
@@ -897,7 +961,7 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
     k = cinfo->Ss;
 
     if (EOBRUN == 0) {
-      for (; k <= Se; k++) {
+      do {
 	HUFF_DECODE(s, br_state, tbl, goto undoit, label3);
 	r = s >> 4;
 	s &= 15;
@@ -926,8 +990,8 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	 * if the absolute value of the coefficient must be increased.
 	 */
 	do {
-	  thiscoef = *block + jpeg_natural_order[k];
+	  thiscoef = *block + natural_order[k];
-	  if (*thiscoef != 0) {
+	  if (*thiscoef) {
 	    CHECK_BIT_BUFFER(br_state, 1, goto undoit);
 	    if (GET_BITS(1)) {
 	      if ((*thiscoef & p1) == 0) { /* do nothing if already set it */
@@ -944,24 +1008,25 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	  k++;
 	} while (k <= Se);
 	if (s) {
-	  int pos = jpeg_natural_order[k];
+	  int pos = natural_order[k];
 	  /* Output newly nonzero coefficient */
 	  (*block)[pos] = (JCOEF) s;
 	  /* Remember its position in case we have to suspend */
 	  newnz_pos[num_newnz++] = pos;
 	}
-      }
+	k++;
+      } while (k <= Se);
     }
 
-    if (EOBRUN > 0) {
+    if (EOBRUN) {
       /* Scan any remaining coefficient positions after the end-of-band
        * (the last newly nonzero coefficient, if any).  Append a correction
        * bit to each already-nonzero coefficient.  A correction bit is 1
        * if the absolute value of the coefficient must be increased.
        */
-      for (; k <= Se; k++) {
+      do {
-	thiscoef = *block + jpeg_natural_order[k];
+	thiscoef = *block + natural_order[k];
-	if (*thiscoef != 0) {
+	if (*thiscoef) {
 	  CHECK_BIT_BUFFER(br_state, 1, goto undoit);
 	  if (GET_BITS(1)) {
 	    if ((*thiscoef & p1) == 0) { /* do nothing if already changed it */
@@ -972,7 +1037,8 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	    }
 	  }
 	}
-      }
+	k++;
+      } while (k <= Se);
       /* Count one block completed in EOB run */
       EOBRUN--;
     }
@@ -989,7 +1055,7 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
 undoit:
   /* Re-zero any output coefficients that we made newly nonzero */
-  while (num_newnz > 0)
+  while (num_newnz)
     (*block)[newnz_pos[--num_newnz]] = 0;
 
   return FALSE;
@@ -997,7 +1063,136 @@ undoit:
 
 
 /*
- * Decode one MCU's worth of Huffman-compressed coefficients.
+ * Decode one MCU's worth of Huffman-compressed coefficients,
+ * partial blocks.
+ */
+
+METHODDEF(boolean)
+decode_mcu_sub (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
+{
+  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
+  const int * natural_order;
+  int Se, blkn;
+  BITREAD_STATE_VARS;
+  savable_state state;
+
+  /* Process restart marker if needed; may have to suspend */
+  if (cinfo->restart_interval) {
+    if (entropy->restarts_to_go == 0)
+      if (! process_restart(cinfo))
+	return FALSE;
+  }
+
+  /* If we've run out of data, just leave the MCU set to zeroes.
+   * This way, we return uniform gray for the remainder of the segment.
+   */
+  if (! entropy->insufficient_data) {
+
+    natural_order = cinfo->natural_order;
+    Se = cinfo->lim_Se;
+
+    /* Load up working state */
+    BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
+    ASSIGN_STATE(state, entropy->saved);
+
+    /* Outer loop handles each block in the MCU */
+
+    for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
+      JBLOCKROW block = MCU_data[blkn];
+      d_derived_tbl * htbl;
+      register int s, k, r;
+      int coef_limit, ci;
+
+      /* Decode a single block's worth of coefficients */
+
+      /* Section F.2.2.1: decode the DC coefficient difference */
+      htbl = entropy->dc_cur_tbls[blkn];
+      HUFF_DECODE(s, br_state, htbl, return FALSE, label1);
+
+      htbl = entropy->ac_cur_tbls[blkn];
+      k = 1;
+      coef_limit = entropy->coef_limit[blkn];
+      if (coef_limit) {
+	/* Convert DC difference to actual value, update last_dc_val */
+	if (s) {
+	  CHECK_BIT_BUFFER(br_state, s, return FALSE);
+	  r = GET_BITS(s);
+	  s = HUFF_EXTEND(r, s);
+	}
+	ci = cinfo->MCU_membership[blkn];
+	s += state.last_dc_val[ci];
+	state.last_dc_val[ci] = s;
+	/* Output the DC coefficient */
+	(*block)[0] = (JCOEF) s;
+
+	/* Section F.2.2.2: decode the AC coefficients */
+	/* Since zeroes are skipped, output area must be cleared beforehand */
+	for (; k < coef_limit; k++) {
+	  HUFF_DECODE(s, br_state, htbl, return FALSE, label2);
+
+	  r = s >> 4;
+	  s &= 15;
+
+	  if (s) {
+	    k += r;
+	    CHECK_BIT_BUFFER(br_state, s, return FALSE);
+	    r = GET_BITS(s);
+	    s = HUFF_EXTEND(r, s);
+	    /* Output coefficient in natural (dezigzagged) order.
+	     * Note: the extra entries in natural_order[] will save us
+	     * if k > Se, which could happen if the data is corrupted.
+	     */
+	    (*block)[natural_order[k]] = (JCOEF) s;
+	  } else {
+	    if (r != 15)
+	      goto EndOfBlock;
+	    k += 15;
+	  }
+	}
+      } else {
+	if (s) {
+	  CHECK_BIT_BUFFER(br_state, s, return FALSE);
+	  DROP_BITS(s);
+	}
+      }
+
+      /* Section F.2.2.2: decode the AC coefficients */
+      /* In this path we just discard the values */
+      for (; k <= Se; k++) {
+	HUFF_DECODE(s, br_state, htbl, return FALSE, label3);
+
+	r = s >> 4;
+	s &= 15;
+
+	if (s) {
+	  k += r;
+	  CHECK_BIT_BUFFER(br_state, s, return FALSE);
+	  DROP_BITS(s);
+	} else {
+	  if (r != 15)
+	    break;
+	  k += 15;
+	}
+      }
+
+      EndOfBlock: ;
+    }
+
+    /* Completed MCU, so update state */
+    BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
+    ASSIGN_STATE(entropy->saved, state);
+  }
+
+  /* Account for restart interval (no-op if not using restarts) */
+  entropy->restarts_to_go--;
+
+  return TRUE;
+}
+
+
+/*
+ * Decode one MCU's worth of Huffman-compressed coefficients,
+ * full-size blocks.
  */
 
 METHODDEF(boolean)
@@ -1018,7 +1213,7 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   /* If we've run out of data, just leave the MCU set to zeroes.
    * This way, we return uniform gray for the remainder of the segment.
    */
-  if (! entropy->pub.insufficient_data) {
+  if (! entropy->insufficient_data) {
 
     /* Load up working state */
     BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
@@ -1127,7 +1322,7 @@ METHODDEF(void)
 start_pass_huff_decoder (j_decompress_ptr cinfo)
 {
   huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int ci, blkn, dctbl, actbl, i;
+  int ci, blkn, tbl, i;
   jpeg_component_info * compptr;
 
   if (cinfo->progressive_mode) {
@@ -1137,7 +1332,7 @@ start_pass_huff_decoder (j_decompress_ptr cinfo)
 	goto bad;
     } else {
       /* need not check Ss/Se < 0 since they came from unsigned bytes */
-      if (cinfo->Se < cinfo->Ss || cinfo->Se >= DCTSIZE2)
+      if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se)
 	goto bad;
       /* AC scans may have only one component */
       if (cinfo->comps_in_scan != 1)
@@ -1196,16 +1391,16 @@ start_pass_huff_decoder (j_decompress_ptr cinfo)
        */
       if (cinfo->Ss == 0) {
 	if (cinfo->Ah == 0) {	/* DC refinement needs no table */
-	  i = compptr->dc_tbl_no;
+	  tbl = compptr->dc_tbl_no;
-	  jpeg_make_d_derived_tbl(cinfo, TRUE, i,
+	  jpeg_make_d_derived_tbl(cinfo, TRUE, tbl,
-				  & entropy->derived_tbls[i]);
+				  & entropy->derived_tbls[tbl]);
 	}
       } else {
-	i = compptr->ac_tbl_no;
+	tbl = compptr->ac_tbl_no;
-	jpeg_make_d_derived_tbl(cinfo, FALSE, i,
+	jpeg_make_d_derived_tbl(cinfo, FALSE, tbl,
-				& entropy->derived_tbls[i]);
+				& entropy->derived_tbls[tbl]);
 	/* remember the single active table */
-	entropy->ac_derived_tbl = entropy->derived_tbls[i];
+	entropy->ac_derived_tbl = entropy->derived_tbls[tbl];
       }
       /* Initialize DC predictions to 0 */
       entropy->saved.last_dc_val[ci] = 0;
@@ -1218,23 +1413,35 @@ start_pass_huff_decoder (j_decompress_ptr cinfo)
      * This ought to be an error condition, but we make it a warning because
      * there are some baseline files out there with all zeroes in these bytes.
      */
-    if (cinfo->Ss != 0 || cinfo->Se != DCTSIZE2-1 ||
+    if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 ||
-	cinfo->Ah != 0 || cinfo->Al != 0)
+	((cinfo->is_baseline || cinfo->Se < DCTSIZE2) &&
+	cinfo->Se != cinfo->lim_Se))
       WARNMS(cinfo, JWRN_NOT_SEQUENTIAL);
 
     /* Select MCU decoding routine */
+    /* We retain the hard-coded case for full-size blocks.
+     * This is not necessary, but it appears that this version is slightly
+     * more performant in the given implementation.
+     * With an improved implementation we would prefer a single optimized
+     * function.
+     */
+    if (cinfo->lim_Se != DCTSIZE2-1)
+      entropy->pub.decode_mcu = decode_mcu_sub;
+    else
       entropy->pub.decode_mcu = decode_mcu;
 
     for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
       compptr = cinfo->cur_comp_info[ci];
-      dctbl = compptr->dc_tbl_no;
-      actbl = compptr->ac_tbl_no;
       /* Compute derived values for Huffman tables */
       /* We may do this more than once for a table, but it's not expensive */
-      jpeg_make_d_derived_tbl(cinfo, TRUE, dctbl,
+      tbl = compptr->dc_tbl_no;
-			      & entropy->dc_derived_tbls[dctbl]);
+      jpeg_make_d_derived_tbl(cinfo, TRUE, tbl,
-      jpeg_make_d_derived_tbl(cinfo, FALSE, actbl,
+			      & entropy->dc_derived_tbls[tbl]);
-			      & entropy->ac_derived_tbls[actbl]);
+      if (cinfo->lim_Se) {	/* AC needs no table when not present */
+	tbl = compptr->ac_tbl_no;
+	jpeg_make_d_derived_tbl(cinfo, FALSE, tbl,
+				& entropy->ac_derived_tbls[tbl]);
+      }
       /* Initialize DC predictions to 0 */
       entropy->saved.last_dc_val[ci] = 0;
     }
@@ -1249,10 +1456,47 @@ start_pass_huff_decoder (j_decompress_ptr cinfo)
       /* Decide whether we really care about the coefficient values */
       if (compptr->component_needed) {
 	ci = compptr->DCT_v_scaled_size;
-	if (ci <= 0 || ci > 8) ci = 8;
 	i = compptr->DCT_h_scaled_size;
+	switch (cinfo->lim_Se) {
+	case (1*1-1):
+	  entropy->coef_limit[blkn] = 1;
+	  break;
+	case (2*2-1):
+	  if (ci <= 0 || ci > 2) ci = 2;
+	  if (i <= 0 || i > 2) i = 2;
+	  entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order2[ci - 1][i - 1];
+	  break;
+	case (3*3-1):
+	  if (ci <= 0 || ci > 3) ci = 3;
+	  if (i <= 0 || i > 3) i = 3;
+	  entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order3[ci - 1][i - 1];
+	  break;
+	case (4*4-1):
+	  if (ci <= 0 || ci > 4) ci = 4;
+	  if (i <= 0 || i > 4) i = 4;
+	  entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order4[ci - 1][i - 1];
+	  break;
+	case (5*5-1):
+	  if (ci <= 0 || ci > 5) ci = 5;
+	  if (i <= 0 || i > 5) i = 5;
+	  entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order5[ci - 1][i - 1];
+	  break;
+	case (6*6-1):
+	  if (ci <= 0 || ci > 6) ci = 6;
+	  if (i <= 0 || i > 6) i = 6;
+	  entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order6[ci - 1][i - 1];
+	  break;
+	case (7*7-1):
+	  if (ci <= 0 || ci > 7) ci = 7;
+	  if (i <= 0 || i > 7) i = 7;
+	  entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order7[ci - 1][i - 1];
+	  break;
+	default:
+	  if (ci <= 0 || ci > 8) ci = 8;
 	  if (i <= 0 || i > 8) i = 8;
 	  entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order[ci - 1][i - 1];
+	  break;
+	}
       } else {
 	entropy->coef_limit[blkn] = 0;
       }
@@ -1262,7 +1506,7 @@ start_pass_huff_decoder (j_decompress_ptr cinfo)
   /* Initialize bitread state variables */
   entropy->bitstate.bits_left = 0;
   entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify quiet */
-  entropy->pub.insufficient_data = FALSE;
+  entropy->insufficient_data = FALSE;
 
   /* Initialize restart counter */
   entropy->restarts_to_go = cinfo->restart_interval;
@@ -1282,8 +1526,9 @@ jinit_huff_decoder (j_decompress_ptr cinfo)
   entropy = (huff_entropy_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(huff_entropy_decoder));
-  cinfo->entropy = (struct jpeg_entropy_decoder *) entropy;
+  cinfo->entropy = &entropy->pub;
   entropy->pub.start_pass = start_pass_huff_decoder;
+  entropy->pub.finish_pass = finish_pass_huff;
 
   if (cinfo->progressive_mode) {
     /* Create progression status table */

jdinput.c

@@ -2,7 +2,7 @@
  * jdinput.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2002-2009 by Guido Vollbeding.
+ * Modified 2002-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -22,7 +22,7 @@
 typedef struct {
   struct jpeg_input_controller pub; /* public fields */
 
-  boolean inheaders;		/* TRUE until first SOS is reached */
+  int inheaders;		/* Nonzero until first SOS is reached */
 } my_input_controller;
 
 typedef my_input_controller * my_inputctl_ptr;
@@ -36,6 +36,174 @@ METHODDEF(int) consume_markers JPP((j_decompress_ptr cinfo));
  * Routines to calculate various quantities related to the size of the image.
  */
 
+
+/*
+ * Compute output image dimensions and related values.
+ * NOTE: this is exported for possible use by application.
+ * Hence it mustn't do anything that can't be done twice.
+ */
+
+GLOBAL(void)
+jpeg_core_output_dimensions (j_decompress_ptr cinfo)
+/* Do computations that are needed before master selection phase.
+ * This function is used for transcoding and full decompression.
+ */
+{
+#ifdef IDCT_SCALING_SUPPORTED
+  int ci;
+  jpeg_component_info *compptr;
+
+  /* Compute actual output image dimensions and DCT scaling choices. */
+  if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom) {
+    /* Provide 1/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 1;
+    cinfo->min_DCT_v_scaled_size = 1;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 2) {
+    /* Provide 2/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 2L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 2L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 2;
+    cinfo->min_DCT_v_scaled_size = 2;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 3) {
+    /* Provide 3/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 3L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 3L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 3;
+    cinfo->min_DCT_v_scaled_size = 3;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 4) {
+    /* Provide 4/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 4L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 4L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 4;
+    cinfo->min_DCT_v_scaled_size = 4;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 5) {
+    /* Provide 5/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 5L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 5L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 5;
+    cinfo->min_DCT_v_scaled_size = 5;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 6) {
+    /* Provide 6/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 6L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 6L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 6;
+    cinfo->min_DCT_v_scaled_size = 6;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 7) {
+    /* Provide 7/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 7L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 7L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 7;
+    cinfo->min_DCT_v_scaled_size = 7;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 8) {
+    /* Provide 8/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 8L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 8L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 8;
+    cinfo->min_DCT_v_scaled_size = 8;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 9) {
+    /* Provide 9/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 9L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 9L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 9;
+    cinfo->min_DCT_v_scaled_size = 9;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 10) {
+    /* Provide 10/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 10L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 10L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 10;
+    cinfo->min_DCT_v_scaled_size = 10;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 11) {
+    /* Provide 11/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 11L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 11L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 11;
+    cinfo->min_DCT_v_scaled_size = 11;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 12) {
+    /* Provide 12/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 12L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 12L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 12;
+    cinfo->min_DCT_v_scaled_size = 12;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 13) {
+    /* Provide 13/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 13L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 13L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 13;
+    cinfo->min_DCT_v_scaled_size = 13;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 14) {
+    /* Provide 14/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 14L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 14L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 14;
+    cinfo->min_DCT_v_scaled_size = 14;
+  } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 15) {
+    /* Provide 15/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 15L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 15L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 15;
+    cinfo->min_DCT_v_scaled_size = 15;
+  } else {
+    /* Provide 16/block_size scaling */
+    cinfo->output_width = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_width * 16L, (long) cinfo->block_size);
+    cinfo->output_height = (JDIMENSION)
+      jdiv_round_up((long) cinfo->image_height * 16L, (long) cinfo->block_size);
+    cinfo->min_DCT_h_scaled_size = 16;
+    cinfo->min_DCT_v_scaled_size = 16;
+  }
+
+  /* Recompute dimensions of components */
+  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
+       ci++, compptr++) {
+    compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size;
+    compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size;
+  }
+
+#else /* !IDCT_SCALING_SUPPORTED */
+
+  /* Hardwire it to "no scaling" */
+  cinfo->output_width = cinfo->image_width;
+  cinfo->output_height = cinfo->image_height;
+  /* initial_setup has already initialized DCT_scaled_size,
+   * and has computed unscaled downsampled_width and downsampled_height.
+   */
+
+#endif /* IDCT_SCALING_SUPPORTED */
+}
+
+
 LOCAL(void)
 initial_setup (j_decompress_ptr cinfo)
 /* Called once, when first SOS marker is reached */
@@ -48,8 +216,8 @@ initial_setup (j_decompress_ptr cinfo)
       (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION)
     ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION);
 
-  /* For now, precision must match compiled-in value... */
+  /* Only 8 to 12 bits data precision are supported for DCT based JPEG */
-  if (cinfo->data_precision != BITS_IN_JSAMPLE)
+  if (cinfo->data_precision < 8 || cinfo->data_precision > 12)
     ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
 
   /* Check that number of components won't exceed internal array sizes */
@@ -71,25 +239,121 @@ initial_setup (j_decompress_ptr cinfo)
 				   compptr->v_samp_factor);
   }
 
-  /* We initialize DCT_scaled_size and min_DCT_scaled_size to DCTSIZE.
+  /* Derive block_size, natural_order, and lim_Se */
-   * In the full decompressor, this will be overridden by jdmaster.c;
+  if (cinfo->is_baseline || (cinfo->progressive_mode &&
-   * but in the transcoder, jdmaster.c is not used, so we must do it here.
+      cinfo->comps_in_scan)) { /* no pseudo SOS marker */
+    cinfo->block_size = DCTSIZE;
+    cinfo->natural_order = jpeg_natural_order;
+    cinfo->lim_Se = DCTSIZE2-1;
+  } else
+    switch (cinfo->Se) {
+    case (1*1-1):
+      cinfo->block_size = 1;
+      cinfo->natural_order = jpeg_natural_order; /* not needed */
+      cinfo->lim_Se = cinfo->Se;
+      break;
+    case (2*2-1):
+      cinfo->block_size = 2;
+      cinfo->natural_order = jpeg_natural_order2;
+      cinfo->lim_Se = cinfo->Se;
+      break;
+    case (3*3-1):
+      cinfo->block_size = 3;
+      cinfo->natural_order = jpeg_natural_order3;
+      cinfo->lim_Se = cinfo->Se;
+      break;
+    case (4*4-1):
+      cinfo->block_size = 4;
+      cinfo->natural_order = jpeg_natural_order4;
+      cinfo->lim_Se = cinfo->Se;
+      break;
+    case (5*5-1):
+      cinfo->block_size = 5;
+      cinfo->natural_order = jpeg_natural_order5;
+      cinfo->lim_Se = cinfo->Se;
+      break;
+    case (6*6-1):
+      cinfo->block_size = 6;
+      cinfo->natural_order = jpeg_natural_order6;
+      cinfo->lim_Se = cinfo->Se;
+      break;
+    case (7*7-1):
+      cinfo->block_size = 7;
+      cinfo->natural_order = jpeg_natural_order7;
+      cinfo->lim_Se = cinfo->Se;
+      break;
+    case (8*8-1):
+      cinfo->block_size = 8;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (9*9-1):
+      cinfo->block_size = 9;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (10*10-1):
+      cinfo->block_size = 10;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (11*11-1):
+      cinfo->block_size = 11;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (12*12-1):
+      cinfo->block_size = 12;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (13*13-1):
+      cinfo->block_size = 13;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (14*14-1):
+      cinfo->block_size = 14;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (15*15-1):
+      cinfo->block_size = 15;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    case (16*16-1):
+      cinfo->block_size = 16;
+      cinfo->natural_order = jpeg_natural_order;
+      cinfo->lim_Se = DCTSIZE2-1;
+      break;
+    default:
+      ERREXIT4(cinfo, JERR_BAD_PROGRESSION,
+	       cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
+      break;
+    }
+
+  /* We initialize DCT_scaled_size and min_DCT_scaled_size to block_size.
+   * In the full decompressor,
+   * this will be overridden by jpeg_calc_output_dimensions in jdmaster.c;
+   * but in the transcoder,
+   * jpeg_calc_output_dimensions is not used, so we must do it here.
    */
-  cinfo->min_DCT_h_scaled_size = DCTSIZE;
+  cinfo->min_DCT_h_scaled_size = cinfo->block_size;
-  cinfo->min_DCT_v_scaled_size = DCTSIZE;
+  cinfo->min_DCT_v_scaled_size = cinfo->block_size;
 
   /* Compute dimensions of components */
   for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
        ci++, compptr++) {
-    compptr->DCT_h_scaled_size = DCTSIZE;
+    compptr->DCT_h_scaled_size = cinfo->block_size;
-    compptr->DCT_v_scaled_size = DCTSIZE;
+    compptr->DCT_v_scaled_size = cinfo->block_size;
     /* Size in DCT blocks */
     compptr->width_in_blocks = (JDIMENSION)
       jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor,
-		    (long) (cinfo->max_h_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_h_samp_factor * cinfo->block_size));
     compptr->height_in_blocks = (JDIMENSION)
       jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor,
-		    (long) (cinfo->max_v_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_v_samp_factor * cinfo->block_size));
     /* downsampled_width and downsampled_height will also be overridden by
      * jdmaster.c if we are doing full decompression.  The transcoder library
      * doesn't use these values, but the calling application might.
@@ -110,7 +374,7 @@ initial_setup (j_decompress_ptr cinfo)
   /* Compute number of fully interleaved MCU rows. */
   cinfo->total_iMCU_rows = (JDIMENSION)
     jdiv_round_up((long) cinfo->image_height,
-		  (long) (cinfo->max_v_samp_factor*DCTSIZE));
+	          (long) (cinfo->max_v_samp_factor * cinfo->block_size));
 
   /* Decide whether file contains multiple scans */
   if (cinfo->comps_in_scan < cinfo->num_components || cinfo->progressive_mode)
@@ -164,10 +428,10 @@ per_scan_setup (j_decompress_ptr cinfo)
     /* Overall image size in MCUs */
     cinfo->MCUs_per_row = (JDIMENSION)
       jdiv_round_up((long) cinfo->image_width,
-		    (long) (cinfo->max_h_samp_factor*DCTSIZE));
+		    (long) (cinfo->max_h_samp_factor * cinfo->block_size));
     cinfo->MCU_rows_in_scan = (JDIMENSION)
       jdiv_round_up((long) cinfo->image_height,
-		    (long) (cinfo->max_v_samp_factor*DCTSIZE));
+		    (long) (cinfo->max_v_samp_factor * cinfo->block_size));
     
     cinfo->blocks_in_MCU = 0;
     
@@ -273,6 +537,7 @@ start_input_pass (j_decompress_ptr cinfo)
 METHODDEF(void)
 finish_input_pass (j_decompress_ptr cinfo)
 {
+  (*cinfo->entropy->finish_pass) (cinfo);
   cinfo->inputctl->consume_input = consume_markers;
 }
 
@@ -285,6 +550,10 @@ finish_input_pass (j_decompress_ptr cinfo)
  * The consume_input method pointer points either here or to the
  * coefficient controller's consume_data routine, depending on whether
  * we are reading a compressed data segment or inter-segment markers.
+ *
+ * Note: This function should NOT return a pseudo SOS marker (with zero
+ * component number) to the caller.  A pseudo marker received by
+ * read_markers is processed and then skipped for other markers.
  */
 
 METHODDEF(int)
@@ -296,13 +565,19 @@ consume_markers (j_decompress_ptr cinfo)
   if (inputctl->pub.eoi_reached) /* After hitting EOI, read no further */
     return JPEG_REACHED_EOI;
 
+  for (;;) {			/* Loop to pass pseudo SOS marker */
     val = (*cinfo->marker->read_markers) (cinfo);
 
     switch (val) {
     case JPEG_REACHED_SOS:	/* Found SOS */
       if (inputctl->inheaders) { /* 1st SOS */
+	if (inputctl->inheaders == 1)
 	  initial_setup(cinfo);
-      inputctl->inheaders = FALSE;
+	if (cinfo->comps_in_scan == 0) { /* pseudo SOS marker */
+	  inputctl->inheaders = 2;
+	  break;
+	}
+	inputctl->inheaders = 0;
 	/* Note: start_input_pass must be called by jdmaster.c
 	 * before any more input can be consumed.  jdapimin.c is
 	 * responsible for enforcing this sequencing.
@@ -310,9 +585,11 @@ consume_markers (j_decompress_ptr cinfo)
       } else {			/* 2nd or later SOS marker */
 	if (! inputctl->pub.has_multiple_scans)
 	  ERREXIT(cinfo, JERR_EOI_EXPECTED); /* Oops, I wasn't expecting this! */
+	if (cinfo->comps_in_scan == 0) /* unexpected pseudo SOS marker */
+	  break;
 	start_input_pass(cinfo);
       }
-    break;
+      return val;
     case JPEG_REACHED_EOI:	/* Found EOI */
       inputctl->pub.eoi_reached = TRUE;
       if (inputctl->inheaders) { /* Tables-only datastream, apparently */
@@ -325,12 +602,13 @@ consume_markers (j_decompress_ptr cinfo)
 	if (cinfo->output_scan_number > cinfo->input_scan_number)
 	  cinfo->output_scan_number = cinfo->input_scan_number;
       }
-    break;
-  case JPEG_SUSPENDED:
-    break;
-  }
-
       return val;
+    case JPEG_SUSPENDED:
+      return val;
+    default:
+      return val;
+    }
+  }
 }
 
 
@@ -346,7 +624,7 @@ reset_input_controller (j_decompress_ptr cinfo)
   inputctl->pub.consume_input = consume_markers;
   inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */
   inputctl->pub.eoi_reached = FALSE;
-  inputctl->inheaders = TRUE;
+  inputctl->inheaders = 1;
   /* Reset other modules */
   (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
   (*cinfo->marker->reset_marker_reader) (cinfo);
@@ -369,7 +647,7 @@ jinit_input_controller (j_decompress_ptr cinfo)
   inputctl = (my_inputctl_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
 				SIZEOF(my_input_controller));
-  cinfo->inputctl = (struct jpeg_input_controller *) inputctl;
+  cinfo->inputctl = &inputctl->pub;
   /* Initialize method pointers */
   inputctl->pub.consume_input = consume_markers;
   inputctl->pub.reset_input_controller = reset_input_controller;
@@ -380,5 +658,5 @@ jinit_input_controller (j_decompress_ptr cinfo)
    */
   inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */
   inputctl->pub.eoi_reached = FALSE;
-  inputctl->inheaders = TRUE;
+  inputctl->inheaders = 1;
 }

jdmainct.c

@@ -2,6 +2,7 @@
  * jdmainct.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2002-2012 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -159,7 +160,7 @@ alloc_funny_pointers (j_decompress_ptr cinfo)
  * This is done only once, not once per pass.
  */
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
   int ci, rgroup;
   int M = cinfo->min_DCT_v_scaled_size;
   jpeg_component_info *compptr;
@@ -168,10 +169,10 @@ alloc_funny_pointers (j_decompress_ptr cinfo)
   /* Get top-level space for component array pointers.
    * We alloc both arrays with one call to save a few cycles.
    */
-  main->xbuffer[0] = (JSAMPIMAGE)
+  mainp->xbuffer[0] = (JSAMPIMAGE)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				cinfo->num_components * 2 * SIZEOF(JSAMPARRAY));
-  main->xbuffer[1] = main->xbuffer[0] + cinfo->num_components;
+  mainp->xbuffer[1] = mainp->xbuffer[0] + cinfo->num_components;
 
   for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
        ci++, compptr++) {
@@ -184,9 +185,9 @@ alloc_funny_pointers (j_decompress_ptr cinfo)
       (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				  2 * (rgroup * (M + 4)) * SIZEOF(JSAMPROW));
     xbuf += rgroup;		/* want one row group at negative offsets */
-    main->xbuffer[0][ci] = xbuf;
+    mainp->xbuffer[0][ci] = xbuf;
     xbuf += rgroup * (M + 4);
-    main->xbuffer[1][ci] = xbuf;
+    mainp->xbuffer[1][ci] = xbuf;
   }
 }
 
@@ -200,7 +201,7 @@ make_funny_pointers (j_decompress_ptr cinfo)
  * This will be repeated at the beginning of each pass.
  */
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
   int ci, i, rgroup;
   int M = cinfo->min_DCT_v_scaled_size;
   jpeg_component_info *compptr;
@@ -210,10 +211,10 @@ make_funny_pointers (j_decompress_ptr cinfo)
        ci++, compptr++) {
     rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) /
       cinfo->min_DCT_v_scaled_size; /* height of a row group of component */
-    xbuf0 = main->xbuffer[0][ci];
+    xbuf0 = mainp->xbuffer[0][ci];
-    xbuf1 = main->xbuffer[1][ci];
+    xbuf1 = mainp->xbuffer[1][ci];
     /* First copy the workspace pointers as-is */
-    buf = main->buffer[ci];
+    buf = mainp->buffer[ci];
     for (i = 0; i < rgroup * (M + 2); i++) {
       xbuf0[i] = xbuf1[i] = buf[i];
     }
@@ -240,7 +241,7 @@ set_wraparound_pointers (j_decompress_ptr cinfo)
  * This changes the pointer list state from top-of-image to the normal state.
  */
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
   int ci, i, rgroup;
   int M = cinfo->min_DCT_v_scaled_size;
   jpeg_component_info *compptr;
@@ -250,8 +251,8 @@ set_wraparound_pointers (j_decompress_ptr cinfo)
        ci++, compptr++) {
     rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) /
       cinfo->min_DCT_v_scaled_size; /* height of a row group of component */
-    xbuf0 = main->xbuffer[0][ci];
+    xbuf0 = mainp->xbuffer[0][ci];
-    xbuf1 = main->xbuffer[1][ci];
+    xbuf1 = mainp->xbuffer[1][ci];
     for (i = 0; i < rgroup; i++) {
       xbuf0[i - rgroup] = xbuf0[rgroup*(M+1) + i];
       xbuf1[i - rgroup] = xbuf1[rgroup*(M+1) + i];
@@ -269,7 +270,7 @@ set_bottom_pointers (j_decompress_ptr cinfo)
  * Also sets rowgroups_avail to indicate number of nondummy row groups in row.
  */
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
   int ci, i, rgroup, iMCUheight, rows_left;
   jpeg_component_info *compptr;
   JSAMPARRAY xbuf;
@@ -286,12 +287,12 @@ set_bottom_pointers (j_decompress_ptr cinfo)
      * so we need only do it once.
      */
     if (ci == 0) {
-      main->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1);
+      mainp->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1);
     }
     /* Duplicate the last real sample row rgroup*2 times; this pads out the
      * last partial rowgroup and ensures at least one full rowgroup of context.
      */
-    xbuf = main->xbuffer[main->whichptr][ci];
+    xbuf = mainp->xbuffer[mainp->whichptr][ci];
     for (i = 0; i < rgroup * 2; i++) {
       xbuf[rows_left + i] = xbuf[rows_left-1];
     }
@@ -306,27 +307,27 @@ set_bottom_pointers (j_decompress_ptr cinfo)
 METHODDEF(void)
 start_pass_main (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
 
   switch (pass_mode) {
   case JBUF_PASS_THRU:
     if (cinfo->upsample->need_context_rows) {
-      main->pub.process_data = process_data_context_main;
+      mainp->pub.process_data = process_data_context_main;
       make_funny_pointers(cinfo); /* Create the xbuffer[] lists */
-      main->whichptr = 0;	/* Read first iMCU row into xbuffer[0] */
+      mainp->whichptr = 0;	/* Read first iMCU row into xbuffer[0] */
-      main->context_state = CTX_PREPARE_FOR_IMCU;
+      mainp->context_state = CTX_PREPARE_FOR_IMCU;
-      main->iMCU_row_ctr = 0;
+      mainp->iMCU_row_ctr = 0;
     } else {
       /* Simple case with no context needed */
-      main->pub.process_data = process_data_simple_main;
+      mainp->pub.process_data = process_data_simple_main;
     }
-    main->buffer_full = FALSE;	/* Mark buffer empty */
+    mainp->buffer_full = FALSE;	/* Mark buffer empty */
-    main->rowgroup_ctr = 0;
+    mainp->rowgroup_ctr = 0;
     break;
 #ifdef QUANT_2PASS_SUPPORTED
   case JBUF_CRANK_DEST:
     /* For last pass of 2-pass quantization, just crank the postprocessor */
-    main->pub.process_data = process_data_crank_post;
+    mainp->pub.process_data = process_data_crank_post;
     break;
 #endif
   default:
@@ -346,14 +347,14 @@ process_data_simple_main (j_decompress_ptr cinfo,
 			  JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
 			  JDIMENSION out_rows_avail)
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
   JDIMENSION rowgroups_avail;
 
   /* Read input data if we haven't filled the main buffer yet */
-  if (! main->buffer_full) {
+  if (! mainp->buffer_full) {
-    if (! (*cinfo->coef->decompress_data) (cinfo, main->buffer))
+    if (! (*cinfo->coef->decompress_data) (cinfo, mainp->buffer))
       return;			/* suspension forced, can do nothing more */
-    main->buffer_full = TRUE;	/* OK, we have an iMCU row to work with */
+    mainp->buffer_full = TRUE;	/* OK, we have an iMCU row to work with */
   }
 
   /* There are always min_DCT_scaled_size row groups in an iMCU row. */
@@ -364,14 +365,14 @@ process_data_simple_main (j_decompress_ptr cinfo,
    */
 
   /* Feed the postprocessor */
-  (*cinfo->post->post_process_data) (cinfo, main->buffer,
+  (*cinfo->post->post_process_data) (cinfo, mainp->buffer,
-				     &main->rowgroup_ctr, rowgroups_avail,
+				     &mainp->rowgroup_ctr, rowgroups_avail,
 				     output_buf, out_row_ctr, out_rows_avail);
 
   /* Has postprocessor consumed all the data yet? If so, mark buffer empty */
-  if (main->rowgroup_ctr >= rowgroups_avail) {
+  if (mainp->rowgroup_ctr >= rowgroups_avail) {
-    main->buffer_full = FALSE;
+    mainp->buffer_full = FALSE;
-    main->rowgroup_ctr = 0;
+    mainp->rowgroup_ctr = 0;
   }
 }
 
@@ -386,15 +387,15 @@ process_data_context_main (j_decompress_ptr cinfo,
 			   JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
 			   JDIMENSION out_rows_avail)
 {
-  my_main_ptr main = (my_main_ptr) cinfo->main;
+  my_main_ptr mainp = (my_main_ptr) cinfo->main;
 
   /* Read input data if we haven't filled the main buffer yet */
-  if (! main->buffer_full) {
+  if (! mainp->buffer_full) {
     if (! (*cinfo->coef->decompress_data) (cinfo,
-					   main->xbuffer[main->whichptr]))
+					   mainp->xbuffer[mainp->whichptr]))
       return;			/* suspension forced, can do nothing more */
-    main->buffer_full = TRUE;	/* OK, we have an iMCU row to work with */
+    mainp->buffer_full = TRUE;	/* OK, we have an iMCU row to work with */
-    main->iMCU_row_ctr++;	/* count rows received */
+    mainp->iMCU_row_ctr++;	/* count rows received */
   }
 
   /* Postprocessor typically will not swallow all the input data it is handed
@@ -402,47 +403,47 @@ process_data_context_main (j_decompress_ptr cinfo,
    * to exit and restart.  This switch lets us keep track of how far we got.
    * Note that each case falls through to the next on successful completion.
    */
-  switch (main->context_state) {
+  switch (mainp->context_state) {
   case CTX_POSTPONED_ROW:
     /* Call postprocessor using previously set pointers for postponed row */
-    (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr],
+    (*cinfo->post->post_process_data) (cinfo, mainp->xbuffer[mainp->whichptr],
-			&main->rowgroup_ctr, main->rowgroups_avail,
+			&mainp->rowgroup_ctr, mainp->rowgroups_avail,
 			output_buf, out_row_ctr, out_rows_avail);
-    if (main->rowgroup_ctr < main->rowgroups_avail)
+    if (mainp->rowgroup_ctr < mainp->rowgroups_avail)
       return;			/* Need to suspend */
-    main->context_state = CTX_PREPARE_FOR_IMCU;
+    mainp->context_state = CTX_PREPARE_FOR_IMCU;
     if (*out_row_ctr >= out_rows_avail)
       return;			/* Postprocessor exactly filled output buf */
     /*FALLTHROUGH*/
   case CTX_PREPARE_FOR_IMCU:
     /* Prepare to process first M-1 row groups of this iMCU row */
-    main->rowgroup_ctr = 0;
+    mainp->rowgroup_ctr = 0;
-    main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size - 1);
+    mainp->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size - 1);
     /* Check for bottom of image: if so, tweak pointers to "duplicate"
      * the last sample row, and adjust rowgroups_avail to ignore padding rows.
      */
-    if (main->iMCU_row_ctr == cinfo->total_iMCU_rows)
+    if (mainp->iMCU_row_ctr == cinfo->total_iMCU_rows)
       set_bottom_pointers(cinfo);
-    main->context_state = CTX_PROCESS_IMCU;
+    mainp->context_state = CTX_PROCESS_IMCU;
     /*FALLTHROUGH*/
   case CTX_PROCESS_IMCU:
     /* Call postprocessor using previously set pointers */
-    (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr],
+    (*cinfo->post->post_process_data) (cinfo, mainp->xbuffer[mainp->whichptr],
-			&main->rowgroup_ctr, main->rowgroups_avail,
+			&mainp->rowgroup_ctr, mainp->rowgroups_avail,
 			output_buf, out_row_ctr, out_rows_avail);
-    if (main->rowgroup_ctr < main->rowgroups_avail)
+    if (mainp->rowgroup_ctr < mainp->rowgroups_avail)
       return;			/* Need to suspend */
     /* After the first iMCU, change wraparound pointers to normal state */
-    if (main->iMCU_row_ctr == 1)
+    if (mainp->iMCU_row_ctr == 1)
       set_wraparound_pointers(cinfo);
     /* Prepare to load new iMCU row using other xbuffer list */
-    main->whichptr ^= 1;	/* 0=>1 or 1=>0 */
+    mainp->whichptr ^= 1;	/* 0=>1 or 1=>0 */
-    main->buffer_full = FALSE;
+    mainp->buffer_full = FALSE;
     /* Still need to process last row group of this iMCU row, */
     /* which is saved at index M+1 of the other xbuffer */
-    main->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 1);
+    mainp->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 1);
-    main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 2);
+    mainp->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 2);
-    main->context_state = CTX_POSTPONED_ROW;
+    mainp->context_state = CTX_POSTPONED_ROW;
   }
 }
 
@@ -475,15 +476,15 @@ process_data_crank_post (j_decompress_ptr cinfo,
 GLOBAL(void)
 jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
 {
-  my_main_ptr main;
+  my_main_ptr mainp;
   int ci, rgroup, ngroups;
   jpeg_component_info *compptr;
 
-  main = (my_main_ptr)
+  mainp = (my_main_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				SIZEOF(my_main_controller));
-  cinfo->main = (struct jpeg_d_main_controller *) main;
+  cinfo->main = &mainp->pub;
-  main->pub.start_pass = start_pass_main;
+  mainp->pub.start_pass = start_pass_main;
 
   if (need_full_buffer)		/* shouldn't happen */
     ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
@@ -504,9 +505,9 @@ jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
        ci++, compptr++) {
     rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) /
       cinfo->min_DCT_v_scaled_size; /* height of a row group of component */
-    main->buffer[ci] = (*cinfo->mem->alloc_sarray)
+    mainp->buffer[ci] = (*cinfo->mem->alloc_sarray)
       ((j_common_ptr) cinfo, JPOOL_IMAGE,
-			 compptr->width_in_blocks * compptr->DCT_h_scaled_size,
+       compptr->width_in_blocks * ((JDIMENSION) compptr->DCT_h_scaled_size),
        (JDIMENSION) (rgroup * ngroups));
   }
 }

jdmarker.c

@@ -2,6 +2,7 @@
  * jdmarker.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
+ * Modified 2009-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -76,6 +77,7 @@ typedef enum {			/* JPEG marker codes */
   M_APP15 = 0xef,
 
   M_JPG0  = 0xf0,
+  M_JPG8  = 0xf8,
   M_JPG13 = 0xfd,
   M_COM   = 0xfe,
 
@@ -216,6 +218,7 @@ get_soi (j_decompress_ptr cinfo)
   /* Set initial assumptions for colorspace etc */
 
   cinfo->jpeg_color_space = JCS_UNKNOWN;
+  cinfo->color_transform = JCT_NONE;
   cinfo->CCIR601_sampling = FALSE; /* Assume non-CCIR sampling??? */
 
   cinfo->saw_JFIF_marker = FALSE;
@@ -234,14 +237,16 @@ get_soi (j_decompress_ptr cinfo)
 
 
 LOCAL(boolean)
-get_sof (j_decompress_ptr cinfo, boolean is_prog, boolean is_arith)
+get_sof (j_decompress_ptr cinfo, boolean is_baseline, boolean is_prog,
+	 boolean is_arith)
 /* Process a SOFn marker */
 {
   INT32 length;
-  int c, ci;
+  int c, ci, i;
   jpeg_component_info * compptr;
   INPUT_VARS(cinfo);
 
+  cinfo->is_baseline = is_baseline;
   cinfo->progressive_mode = is_prog;
   cinfo->arith_code = is_arith;
 
@@ -264,8 +269,8 @@ get_sof (j_decompress_ptr cinfo, boolean is_prog, boolean is_arith)
   /* We don't support files in which the image height is initially specified */
   /* as 0 and is later redefined by DNL.  As long as we have to check that,  */
   /* might as well have a general sanity check. */
-  if (cinfo->image_height <= 0 || cinfo->image_width <= 0
+  if (cinfo->image_height <= 0 || cinfo->image_width <= 0 ||
-      || cinfo->num_components <= 0)
+      cinfo->num_components <= 0)
     ERREXIT(cinfo, JERR_EMPTY_IMAGE);
 
   if (length != (cinfo->num_components * 3))
@@ -276,10 +281,26 @@ get_sof (j_decompress_ptr cinfo, boolean is_prog, boolean is_arith)
 			((j_common_ptr) cinfo, JPOOL_IMAGE,
 			 cinfo->num_components * SIZEOF(jpeg_component_info));
 
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
+  for (ci = 0; ci < cinfo->num_components; ci++) {
-       ci++, compptr++) {
+    INPUT_BYTE(cinfo, c, return FALSE);
+    /* Check to see whether component id has already been seen   */
+    /* (in violation of the spec, but unfortunately seen in some */
+    /* files).  If so, create "fake" component id equal to the   */
+    /* max id seen so far + 1. */
+    for (i = 0, compptr = cinfo->comp_info; i < ci; i++, compptr++) {
+      if (c == compptr->component_id) {
+	compptr = cinfo->comp_info;
+	c = compptr->component_id;
+	compptr++;
+	for (i = 1; i < ci; i++, compptr++) {
+	  if (compptr->component_id > c) c = compptr->component_id;
+	}
+	c++;
+	break;
+      }
+    }
+    compptr->component_id = c;
     compptr->component_index = ci;
-    INPUT_BYTE(cinfo, compptr->component_id, return FALSE);
     INPUT_BYTE(cinfo, c, return FALSE);
     compptr->h_samp_factor = (c >> 4) & 15;
     compptr->v_samp_factor = (c     ) & 15;
@@ -302,12 +323,12 @@ get_sos (j_decompress_ptr cinfo)
 /* Process a SOS marker */
 {
   INT32 length;
-  int i, ci, n, c, cc;
+  int c, ci, i, n;
   jpeg_component_info * compptr;
   INPUT_VARS(cinfo);
 
   if (! cinfo->marker->saw_SOF)
-    ERREXIT(cinfo, JERR_SOS_NO_SOF);
+    ERREXITS(cinfo, JERR_SOF_BEFORE, "SOS");
 
   INPUT_2BYTES(cinfo, length, return FALSE);
 
@@ -315,7 +336,9 @@ get_sos (j_decompress_ptr cinfo)
 
   TRACEMS1(cinfo, 1, JTRC_SOS, n);
 
-  if (length != (n * 2 + 6) || n < 1 || n > MAX_COMPS_IN_SCAN)
+  if (length != (n * 2 + 6) || n > MAX_COMPS_IN_SCAN ||
+      (n == 0 && !cinfo->progressive_mode))
+      /* pseudo SOS marker only allowed in progressive mode */
     ERREXIT(cinfo, JERR_BAD_LENGTH);
 
   cinfo->comps_in_scan = n;
@@ -323,24 +346,41 @@ get_sos (j_decompress_ptr cinfo)
   /* Collect the component-spec parameters */
 
   for (i = 0; i < n; i++) {
-    INPUT_BYTE(cinfo, cc, return FALSE);
     INPUT_BYTE(cinfo, c, return FALSE);
 
+    /* Detect the case where component id's are not unique, and, if so, */
+    /* create a fake component id using the same logic as in get_sof.   */
+    /* Note:  This also ensures that all of the SOF components are      */
+    /* referenced in the single scan case, which prevents access to     */
+    /* uninitialized memory in later decoding stages. */
+    for (ci = 0; ci < i; ci++) {
+      if (c == cinfo->cur_comp_info[ci]->component_id) {
+	c = cinfo->cur_comp_info[0]->component_id;
+	for (ci = 1; ci < i; ci++) {
+	  compptr = cinfo->cur_comp_info[ci];
+	  if (compptr->component_id > c) c = compptr->component_id;
+	}
+	c++;
+	break;
+      }
+    }
+
     for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
 	 ci++, compptr++) {
-      if (cc == compptr->component_id)
+      if (c == compptr->component_id)
 	goto id_found;
     }
 
-    ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc);
+    ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, c);
 
   id_found:
 
     cinfo->cur_comp_info[i] = compptr;
+    INPUT_BYTE(cinfo, c, return FALSE);
     compptr->dc_tbl_no = (c >> 4) & 15;
     compptr->ac_tbl_no = (c     ) & 15;
 
-    TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc,
+    TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, compptr->component_id,
 	     compptr->dc_tbl_no, compptr->ac_tbl_no);
   }
 
@@ -359,8 +399,8 @@ get_sos (j_decompress_ptr cinfo)
   /* Prepare to scan data & restart markers */
   cinfo->marker->next_restart_num = 0;
 
-  /* Count another SOS marker */
+  /* Count another (non-pseudo) SOS marker */
-  cinfo->input_scan_number++;
+  if (n) cinfo->input_scan_number++;
 
   INPUT_SYNC(cinfo);
   return TRUE;
@@ -456,6 +496,8 @@ get_dht (j_decompress_ptr cinfo)
     if (count > 256 || ((INT32) count) > length)
       ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
 
+    MEMZERO(huffval, SIZEOF(huffval)); /* pre-zero array for later copy */
+
     for (i = 0; i < count; i++)
       INPUT_BYTE(cinfo, huffval[i], return FALSE);
 
@@ -490,16 +532,18 @@ LOCAL(boolean)
 get_dqt (j_decompress_ptr cinfo)
 /* Process a DQT marker */
 {
-  INT32 length;
+  INT32 length, count, i;
-  int n, i, prec;
+  int n, prec;
   unsigned int tmp;
   JQUANT_TBL *quant_ptr;
+  const int *natural_order;
   INPUT_VARS(cinfo);
 
   INPUT_2BYTES(cinfo, length, return FALSE);
   length -= 2;
 
   while (length > 0) {
+    length--;
     INPUT_BYTE(cinfo, n, return FALSE);
     prec = n >> 4;
     n &= 0x0F;
@@ -513,13 +557,43 @@ get_dqt (j_decompress_ptr cinfo)
       cinfo->quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) cinfo);
     quant_ptr = cinfo->quant_tbl_ptrs[n];
 
+    if (prec) {
+      if (length < DCTSIZE2 * 2) {
+	/* Initialize full table for safety. */
 	for (i = 0; i < DCTSIZE2; i++) {
+	  quant_ptr->quantval[i] = 1;
+	}
+	count = length >> 1;
+      } else
+	count = DCTSIZE2;
+    } else {
+      if (length < DCTSIZE2) {
+	/* Initialize full table for safety. */
+	for (i = 0; i < DCTSIZE2; i++) {
+	  quant_ptr->quantval[i] = 1;
+	}
+	count = length;
+      } else
+	count = DCTSIZE2;
+    }
+
+    switch (count) {
+    case (2*2): natural_order = jpeg_natural_order2; break;
+    case (3*3): natural_order = jpeg_natural_order3; break;
+    case (4*4): natural_order = jpeg_natural_order4; break;
+    case (5*5): natural_order = jpeg_natural_order5; break;
+    case (6*6): natural_order = jpeg_natural_order6; break;
+    case (7*7): natural_order = jpeg_natural_order7; break;
+    default:    natural_order = jpeg_natural_order;  break;
+    }
+
+    for (i = 0; i < count; i++) {
       if (prec)
 	INPUT_2BYTES(cinfo, tmp, return FALSE);
       else
 	INPUT_BYTE(cinfo, tmp, return FALSE);
       /* We convert the zigzag-order table to natural array order. */
-      quant_ptr->quantval[jpeg_natural_order[i]] = (UINT16) tmp;
+      quant_ptr->quantval[natural_order[i]] = (UINT16) tmp;
     }
 
     if (cinfo->err->trace_level >= 2) {
@@ -532,8 +606,8 @@ get_dqt (j_decompress_ptr cinfo)
       }
     }
 
-    length -= DCTSIZE2+1;
+    length -= count;
-    if (prec) length -= DCTSIZE2;
+    if (prec) length -= count;
   }
 
   if (length != 0)
@@ -568,6 +642,68 @@ get_dri (j_decompress_ptr cinfo)
 }
 
 
+LOCAL(boolean)
+get_lse (j_decompress_ptr cinfo)
+/* Process an LSE marker */
+{
+  INT32 length;
+  unsigned int tmp;
+  int cid;
+  INPUT_VARS(cinfo);
+
+  if (! cinfo->marker->saw_SOF)
+    ERREXITS(cinfo, JERR_SOF_BEFORE, "LSE");
+
+  if (cinfo->num_components < 3) goto bad;
+
+  INPUT_2BYTES(cinfo, length, return FALSE);
+
+  if (length != 24)
+    ERREXIT(cinfo, JERR_BAD_LENGTH);
+
+  INPUT_BYTE(cinfo, tmp, return FALSE);
+  if (tmp != 0x0D)	/* ID inverse transform specification */
+    ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker);
+  INPUT_2BYTES(cinfo, tmp, return FALSE);
+  if (tmp != MAXJSAMPLE) goto bad;		/* MAXTRANS */
+  INPUT_BYTE(cinfo, tmp, return FALSE);
+  if (tmp != 3) goto bad;			/* Nt=3 */
+  INPUT_BYTE(cinfo, cid, return FALSE);
+  if (cid != cinfo->comp_info[1].component_id) goto bad;
+  INPUT_BYTE(cinfo, cid, return FALSE);
+  if (cid != cinfo->comp_info[0].component_id) goto bad;
+  INPUT_BYTE(cinfo, cid, return FALSE);
+  if (cid != cinfo->comp_info[2].component_id) goto bad;
+  INPUT_BYTE(cinfo, tmp, return FALSE);
+  if (tmp != 0x80) goto bad;		/* F1: CENTER1=1, NORM1=0 */
+  INPUT_2BYTES(cinfo, tmp, return FALSE);
+  if (tmp != 0) goto bad;			/* A(1,1)=0 */
+  INPUT_2BYTES(cinfo, tmp, return FALSE);
+  if (tmp != 0) goto bad;			/* A(1,2)=0 */
+  INPUT_BYTE(cinfo, tmp, return FALSE);
+  if (tmp != 0) goto bad;		/* F2: CENTER2=0, NORM2=0 */
+  INPUT_2BYTES(cinfo, tmp, return FALSE);
+  if (tmp != 1) goto bad;			/* A(2,1)=1 */
+  INPUT_2BYTES(cinfo, tmp, return FALSE);
+  if (tmp != 0) goto bad;			/* A(2,2)=0 */
+  INPUT_BYTE(cinfo, tmp, return FALSE);
+  if (tmp != 0) goto bad;		/* F3: CENTER3=0, NORM3=0 */
+  INPUT_2BYTES(cinfo, tmp, return FALSE);
+  if (tmp != 1) goto bad;			/* A(3,1)=1 */
+  INPUT_2BYTES(cinfo, tmp, return FALSE);
+  if (tmp != 0) {				/* A(3,2)=0 */
+    bad:
+    ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
+  }
+
+  /* OK, valid transform that we can handle. */
+  cinfo->color_transform = JCT_SUBTRACT_GREEN;
+
+  INPUT_SYNC(cinfo);
+  return TRUE;
+}
+
+
 /*
  * Routines for processing APPn and COM markers.
  * These are either saved in memory or discarded, per application request.
@@ -604,12 +740,13 @@ examine_app0 (j_decompress_ptr cinfo, JOCTET FAR * data,
     cinfo->X_density = (GETJOCTET(data[8]) << 8) + GETJOCTET(data[9]);
     cinfo->Y_density = (GETJOCTET(data[10]) << 8) + GETJOCTET(data[11]);
     /* Check version.
-     * Major version must be 1, anything else signals an incompatible change.
+     * Major version must be 1 or 2, anything else signals an incompatible
+     * change.
      * (We used to treat this as an error, but now it's a nonfatal warning,
      * because some bozo at Hijaak couldn't read the spec.)
      * Minor version should be 0..2, but process anyway if newer.
      */
-    if (cinfo->JFIF_major_version != 1)
+    if (cinfo->JFIF_major_version != 1 && cinfo->JFIF_major_version != 2)
       WARNMS2(cinfo, JWRN_JFIF_MAJOR,
 	      cinfo->JFIF_major_version, cinfo->JFIF_minor_version);
     /* Generate trace messages */
@@ -946,6 +1083,11 @@ first_marker (j_decompress_ptr cinfo)
  *
  * Returns same codes as are defined for jpeg_consume_input:
  * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
+ *
+ * Note: This function may return a pseudo SOS marker (with zero
+ * component number) for treat by input controller's consume_input.
+ * consume_input itself should filter out (skip) the pseudo marker
+ * after processing for the caller.
  */
 
 METHODDEF(int)
@@ -975,23 +1117,27 @@ read_markers (j_decompress_ptr cinfo)
       break;
 
     case M_SOF0:		/* Baseline */
+      if (! get_sof(cinfo, TRUE, FALSE, FALSE))
+	return JPEG_SUSPENDED;
+      break;
+
     case M_SOF1:		/* Extended sequential, Huffman */
-      if (! get_sof(cinfo, FALSE, FALSE))
+      if (! get_sof(cinfo, FALSE, FALSE, FALSE))
 	return JPEG_SUSPENDED;
       break;
 
     case M_SOF2:		/* Progressive, Huffman */
-      if (! get_sof(cinfo, TRUE, FALSE))
+      if (! get_sof(cinfo, FALSE, TRUE, FALSE))
 	return JPEG_SUSPENDED;
       break;
 
     case M_SOF9:		/* Extended sequential, arithmetic */
-      if (! get_sof(cinfo, FALSE, TRUE))
+      if (! get_sof(cinfo, FALSE, FALSE, TRUE))
 	return JPEG_SUSPENDED;
       break;
 
     case M_SOF10:		/* Progressive, arithmetic */
-      if (! get_sof(cinfo, TRUE, TRUE))
+      if (! get_sof(cinfo, FALSE, TRUE, TRUE))
 	return JPEG_SUSPENDED;
       break;
 
@@ -1039,6 +1185,11 @@ read_markers (j_decompress_ptr cinfo)
 	return JPEG_SUSPENDED;
       break;
 
+    case M_JPG8:
+      if (! get_lse(cinfo))
+	return JPEG_SUSPENDED;
+      break;
+
     case M_APP0:
     case M_APP1:
     case M_APP2:
@@ -1268,7 +1419,7 @@ jinit_marker_reader (j_decompress_ptr cinfo)
   marker = (my_marker_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
 				SIZEOF(my_marker_reader));
-  cinfo->marker = (struct jpeg_marker_reader *) marker;
+  cinfo->marker = &marker->pub;
   /* Initialize public method pointers */
   marker->pub.reset_marker_reader = reset_marker_reader;
   marker->pub.read_markers = read_markers;

jdmaster.c

@@ -2,7 +2,7 @@
  * jdmaster.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2002-2008 by Guido Vollbeding.
+ * Modified 2002-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -51,7 +51,8 @@ use_merged_upsample (j_decompress_ptr cinfo)
   /* jdmerge.c only supports YCC=>RGB color conversion */
   if (cinfo->jpeg_color_space != JCS_YCbCr || cinfo->num_components != 3 ||
       cinfo->out_color_space != JCS_RGB ||
-      cinfo->out_color_components != RGB_PIXELSIZE)
+      cinfo->out_color_components != RGB_PIXELSIZE ||
+      cinfo->color_transform)
     return FALSE;
   /* and it only handles 2h1v or 2h2v sampling ratios */
   if (cinfo->comp_info[0].h_samp_factor != 2 ||
@@ -86,7 +87,9 @@ use_merged_upsample (j_decompress_ptr cinfo)
 
 GLOBAL(void)
 jpeg_calc_output_dimensions (j_decompress_ptr cinfo)
-/* Do computations that are needed before master selection phase */
+/* Do computations that are needed before master selection phase.
+ * This function is used for full decompression.
+ */
 {
 #ifdef IDCT_SCALING_SUPPORTED
   int ci;
@@ -97,134 +100,11 @@ jpeg_calc_output_dimensions (j_decompress_ptr cinfo)
   if (cinfo->global_state != DSTATE_READY)
     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
 
+  /* Compute core output image dimensions and DCT scaling choices. */
+  jpeg_core_output_dimensions(cinfo);
+
 #ifdef IDCT_SCALING_SUPPORTED
 
-  /* Compute actual output image dimensions and DCT scaling choices. */
-  if (cinfo->scale_num * 8 <= cinfo->scale_denom) {
-    /* Provide 1/8 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 8L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 8L);
-    cinfo->min_DCT_h_scaled_size = 1;
-    cinfo->min_DCT_v_scaled_size = 1;
-  } else if (cinfo->scale_num * 4 <= cinfo->scale_denom) {
-    /* Provide 1/4 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 4L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 4L);
-    cinfo->min_DCT_h_scaled_size = 2;
-    cinfo->min_DCT_v_scaled_size = 2;
-  } else if (cinfo->scale_num * 8 <= cinfo->scale_denom * 3) {
-    /* Provide 3/8 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 3L, 8L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 3L, 8L);
-    cinfo->min_DCT_h_scaled_size = 3;
-    cinfo->min_DCT_v_scaled_size = 3;
-  } else if (cinfo->scale_num * 2 <= cinfo->scale_denom) {
-    /* Provide 1/2 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 2L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 2L);
-    cinfo->min_DCT_h_scaled_size = 4;
-    cinfo->min_DCT_v_scaled_size = 4;
-  } else if (cinfo->scale_num * 8 <= cinfo->scale_denom * 5) {
-    /* Provide 5/8 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 5L, 8L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 5L, 8L);
-    cinfo->min_DCT_h_scaled_size = 5;
-    cinfo->min_DCT_v_scaled_size = 5;
-  } else if (cinfo->scale_num * 4 <= cinfo->scale_denom * 3) {
-    /* Provide 3/4 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 3L, 4L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 3L, 4L);
-    cinfo->min_DCT_h_scaled_size = 6;
-    cinfo->min_DCT_v_scaled_size = 6;
-  } else if (cinfo->scale_num * 8 <= cinfo->scale_denom * 7) {
-    /* Provide 7/8 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 7L, 8L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 7L, 8L);
-    cinfo->min_DCT_h_scaled_size = 7;
-    cinfo->min_DCT_v_scaled_size = 7;
-  } else if (cinfo->scale_num <= cinfo->scale_denom) {
-    /* Provide 1/1 scaling */
-    cinfo->output_width = cinfo->image_width;
-    cinfo->output_height = cinfo->image_height;
-    cinfo->min_DCT_h_scaled_size = DCTSIZE;
-    cinfo->min_DCT_v_scaled_size = DCTSIZE;
-  } else if (cinfo->scale_num * 8 <= cinfo->scale_denom * 9) {
-    /* Provide 9/8 scaling */
-    cinfo->output_width = cinfo->image_width + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 8L);
-    cinfo->output_height = cinfo->image_height + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 8L);
-    cinfo->min_DCT_h_scaled_size = 9;
-    cinfo->min_DCT_v_scaled_size = 9;
-  } else if (cinfo->scale_num * 4 <= cinfo->scale_denom * 5) {
-    /* Provide 5/4 scaling */
-    cinfo->output_width = cinfo->image_width + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 4L);
-    cinfo->output_height = cinfo->image_height + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 4L);
-    cinfo->min_DCT_h_scaled_size = 10;
-    cinfo->min_DCT_v_scaled_size = 10;
-  } else if (cinfo->scale_num * 8 <= cinfo->scale_denom * 11) {
-    /* Provide 11/8 scaling */
-    cinfo->output_width = cinfo->image_width + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 3L, 8L);
-    cinfo->output_height = cinfo->image_height + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 3L, 8L);
-    cinfo->min_DCT_h_scaled_size = 11;
-    cinfo->min_DCT_v_scaled_size = 11;
-  } else if (cinfo->scale_num * 2 <= cinfo->scale_denom * 3) {
-    /* Provide 3/2 scaling */
-    cinfo->output_width = cinfo->image_width + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 2L);
-    cinfo->output_height = cinfo->image_height + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 2L);
-    cinfo->min_DCT_h_scaled_size = 12;
-    cinfo->min_DCT_v_scaled_size = 12;
-  } else if (cinfo->scale_num * 8 <= cinfo->scale_denom * 13) {
-    /* Provide 13/8 scaling */
-    cinfo->output_width = cinfo->image_width + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 5L, 8L);
-    cinfo->output_height = cinfo->image_height + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 5L, 8L);
-    cinfo->min_DCT_h_scaled_size = 13;
-    cinfo->min_DCT_v_scaled_size = 13;
-  } else if (cinfo->scale_num * 4 <= cinfo->scale_denom * 7) {
-    /* Provide 7/4 scaling */
-    cinfo->output_width = cinfo->image_width + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 3L, 4L);
-    cinfo->output_height = cinfo->image_height + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 3L, 4L);
-    cinfo->min_DCT_h_scaled_size = 14;
-    cinfo->min_DCT_v_scaled_size = 14;
-  } else if (cinfo->scale_num * 8 <= cinfo->scale_denom * 15) {
-    /* Provide 15/8 scaling */
-    cinfo->output_width = cinfo->image_width + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * 7L, 8L);
-    cinfo->output_height = cinfo->image_height + (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * 7L, 8L);
-    cinfo->min_DCT_h_scaled_size = 15;
-    cinfo->min_DCT_v_scaled_size = 15;
-  } else {
-    /* Provide 2/1 scaling */
-    cinfo->output_width = cinfo->image_width << 1;
-    cinfo->output_height = cinfo->image_height << 1;
-    cinfo->min_DCT_h_scaled_size = 16;
-    cinfo->min_DCT_v_scaled_size = 16;
-  }
   /* In selecting the actual DCT scaling for each component, we try to
    * scale up the chroma components via IDCT scaling rather than upsampling.
    * This saves time if the upsampler gets to use 1:1 scaling.
@@ -263,22 +143,13 @@ jpeg_calc_output_dimensions (j_decompress_ptr cinfo)
     compptr->downsampled_width = (JDIMENSION)
       jdiv_round_up((long) cinfo->image_width *
 		    (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size),
-		    (long) (cinfo->max_h_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_h_samp_factor * cinfo->block_size));
     compptr->downsampled_height = (JDIMENSION)
       jdiv_round_up((long) cinfo->image_height *
 		    (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size),
-		    (long) (cinfo->max_v_samp_factor * DCTSIZE));
+		    (long) (cinfo->max_v_samp_factor * cinfo->block_size));
   }
 
-#else /* !IDCT_SCALING_SUPPORTED */
-
-  /* Hardwire it to "no scaling" */
-  cinfo->output_width = cinfo->image_width;
-  cinfo->output_height = cinfo->image_height;
-  /* jdinput.c has already initialized DCT_scaled_size to DCTSIZE,
-   * and has computed unscaled downsampled_width and downsampled_height.
-   */
-
 #endif /* IDCT_SCALING_SUPPORTED */
 
   /* Report number of components in selected colorspace. */
@@ -288,11 +159,11 @@ jpeg_calc_output_dimensions (j_decompress_ptr cinfo)
     cinfo->out_color_components = 1;
     break;
   case JCS_RGB:
-#if RGB_PIXELSIZE != 3
+  case JCS_BG_RGB:
     cinfo->out_color_components = RGB_PIXELSIZE;
     break;
-#endif /* else share code with YCbCr */
   case JCS_YCbCr:
+  case JCS_BG_YCC:
     cinfo->out_color_components = 3;
     break;
   case JCS_CMYK:
@@ -405,10 +276,19 @@ master_selection (j_decompress_ptr cinfo)
   long samplesperrow;
   JDIMENSION jd_samplesperrow;
 
+  /* For now, precision must match compiled-in value... */
+  if (cinfo->data_precision != BITS_IN_JSAMPLE)
+    ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
+
   /* Initialize dimensions and other stuff */
   jpeg_calc_output_dimensions(cinfo);
   prepare_range_limit_table(cinfo);
 
+  /* Sanity check on image dimensions */
+  if (cinfo->output_height <= 0 || cinfo->output_width <= 0 ||
+      cinfo->out_color_components <= 0)
+    ERREXIT(cinfo, JERR_EMPTY_IMAGE);
+
   /* Width of an output scanline must be representable as JDIMENSION. */
   samplesperrow = (long) cinfo->output_width * (long) cinfo->out_color_components;
   jd_samplesperrow = (JDIMENSION) samplesperrow;
@@ -485,9 +365,9 @@ master_selection (j_decompress_ptr cinfo)
   /* Inverse DCT */
   jinit_inverse_dct(cinfo);
   /* Entropy decoding: either Huffman or arithmetic coding. */
-  if (cinfo->arith_code) {
+  if (cinfo->arith_code)
     jinit_arith_decoder(cinfo);
-  } else {
+  else {
     jinit_huff_decoder(cinfo);
   }
 
@@ -653,7 +533,7 @@ jinit_master_decompress (j_decompress_ptr cinfo)
   master = (my_master_ptr)
       (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				  SIZEOF(my_decomp_master));
-  cinfo->master = (struct jpeg_decomp_master *) master;
+  cinfo->master = &master->pub;
   master->pub.prepare_for_output_pass = prepare_for_output_pass;
   master->pub.finish_output_pass = finish_output_pass;
 

jdmerge.c

@@ -2,6 +2,7 @@
  * jdmerge.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -103,17 +104,17 @@ build_ycc_rgb_table (j_decompress_ptr cinfo)
   for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
     /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
     /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
-    /* Cr=>R value is nearest int to 1.40200 * x */
+    /* Cr=>R value is nearest int to 1.402 * x */
     upsample->Cr_r_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
+		    RIGHT_SHIFT(FIX(1.402) * x + ONE_HALF, SCALEBITS);
-    /* Cb=>B value is nearest int to 1.77200 * x */
+    /* Cb=>B value is nearest int to 1.772 * x */
     upsample->Cb_b_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS);
+		    RIGHT_SHIFT(FIX(1.772) * x + ONE_HALF, SCALEBITS);
-    /* Cr=>G value is scaled-up -0.71414 * x */
+    /* Cr=>G value is scaled-up -0.714136286 * x */
-    upsample->Cr_g_tab[i] = (- FIX(0.71414)) * x;
+    upsample->Cr_g_tab[i] = (- FIX(0.714136286)) * x;
-    /* Cb=>G value is scaled-up -0.34414 * x */
+    /* Cb=>G value is scaled-up -0.344136286 * x */
     /* We also add in ONE_HALF so that need not do it in inner loop */
-    upsample->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF;
+    upsample->Cb_g_tab[i] = (- FIX(0.344136286)) * x + ONE_HALF;
   }
 }
 

jdtrans.c

@@ -2,6 +2,7 @@
  * jdtrans.c
  *
  * Copyright (C) 1995-1997, Thomas G. Lane.
+ * Modified 2000-2009 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -99,6 +100,9 @@ transdecode_master_selection (j_decompress_ptr cinfo)
   /* This is effectively a buffered-image operation. */
   cinfo->buffered_image = TRUE;
 
+  /* Compute output image dimensions and related values. */
+  jpeg_core_output_dimensions(cinfo);
+
   /* Entropy decoding: either Huffman or arithmetic coding. */
   if (cinfo->arith_code)
     jinit_arith_decoder(cinfo);

jerror.c

@@ -2,6 +2,7 @@
  * jerror.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
+ * Modified 2012 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -66,7 +67,7 @@ const char * const jpeg_std_message_table[] = {
  * or jpeg_destroy) at some point.
  */
 
-METHODDEF(void)
+METHODDEF(noreturn_t)
 error_exit (j_common_ptr cinfo)
 {
   /* Always display the message */

jerror.h

@@ -2,7 +2,7 @@
  * jerror.h
  *
  * Copyright (C) 1994-1997, Thomas G. Lane.
- * Modified 1997-2009 by Guido Vollbeding.
+ * Modified 1997-2012 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -106,11 +106,11 @@ JMESSAGE(JERR_QUANT_COMPONENTS,
 	 "Cannot quantize more than %d color components")
 JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors")
 JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors")
+JMESSAGE(JERR_SOF_BEFORE, "Invalid JPEG file structure: %s before SOF")
 JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers")
 JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker")
 JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x")
 JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers")
-JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF")
 JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s")
 JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file")
 JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file")

jfdctint.c

@@ -2,7 +2,7 @@
  * jfdctint.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
- * Modification developed 2003-2009 by Guido Vollbeding.
+ * Modification developed 2003-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -165,16 +165,18 @@ jpeg_fdct_islow (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
+   * cK represents sqrt(2) * cos(K*pi/16).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < DCTSIZE; ctr++) {
     elemptr = sample_data[ctr] + start_col;
 
     /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
+     * rotator "c1" should be "c6".
      */
 
     tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]);
@@ -196,47 +198,49 @@ jpeg_fdct_islow (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
     dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS);
     dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS);
 
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
+    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);       /* c6 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS-PASS1_BITS-1);
-    dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865),
+
+    dataptr[2] = (DCTELEM)
+      RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), /* c2-c6 */
 		  CONST_BITS-PASS1_BITS);
-    dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065),
+    dataptr[6] = (DCTELEM)
+      RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), /* c2+c6 */
 		  CONST_BITS-PASS1_BITS);
 
     /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * cK represents sqrt(2) * cos(K*pi/16).
      * i0..i3 in the paper are tmp0..tmp3 here.
      */
 
-    tmp10 = tmp0 + tmp3;
-    tmp11 = tmp1 + tmp2;
     tmp12 = tmp0 + tmp2;
     tmp13 = tmp1 + tmp3;
+
     z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602);       /*  c3 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS-PASS1_BITS-1);
 
-    tmp0  = MULTIPLY(tmp0,    FIX_1_501321110);    /*  c1+c3-c5-c7 */
+    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);          /* -c3+c5 */
-    tmp1  = MULTIPLY(tmp1,    FIX_3_072711026);    /*  c1+c3+c5-c7 */
-    tmp2  = MULTIPLY(tmp2,    FIX_2_053119869);    /*  c1+c3-c5+c7 */
-    tmp3  = MULTIPLY(tmp3,    FIX_0_298631336);    /* -c1+c3+c5-c7 */
-    tmp10 = MULTIPLY(tmp10, - FIX_0_899976223);    /*  c7-c3 */
-    tmp11 = MULTIPLY(tmp11, - FIX_2_562915447);    /* -c1-c3 */
-    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);    /*  c5-c3 */
     tmp13 = MULTIPLY(tmp13, - FIX_1_961570560);          /* -c3-c5 */
-
     tmp12 += z1;
     tmp13 += z1;
 
-    dataptr[1] = (DCTELEM)
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223);       /* -c3+c7 */
-      RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS);
+    tmp0 = MULTIPLY(tmp0, FIX_1_501321110);              /*  c1+c3-c5-c7 */
-    dataptr[3] = (DCTELEM)
+    tmp3 = MULTIPLY(tmp3, FIX_0_298631336);              /* -c1+c3+c5-c7 */
-      RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS);
+    tmp0 += z1 + tmp12;
-    dataptr[5] = (DCTELEM)
+    tmp3 += z1 + tmp13;
-      RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS);
+
-    dataptr[7] = (DCTELEM)
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447);       /* -c1-c3 */
-      RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS);
+    tmp1 = MULTIPLY(tmp1, FIX_3_072711026);              /*  c1+c3+c5-c7 */
+    tmp2 = MULTIPLY(tmp2, FIX_2_053119869);              /*  c1+c3-c5+c7 */
+    tmp1 += z1 + tmp13;
+    tmp2 += z1 + tmp12;
+
+    dataptr[1] = (DCTELEM) RIGHT_SHIFT(tmp0, CONST_BITS-PASS1_BITS);
+    dataptr[3] = (DCTELEM) RIGHT_SHIFT(tmp1, CONST_BITS-PASS1_BITS);
+    dataptr[5] = (DCTELEM) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS);
+    dataptr[7] = (DCTELEM) RIGHT_SHIFT(tmp3, CONST_BITS-PASS1_BITS);
 
     dataptr += DCTSIZE;		/* advance pointer to next row */
   }
@@ -244,12 +248,13 @@ jpeg_fdct_islow (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pass 2: process columns.
    * We remove the PASS1_BITS scaling, but leave the results scaled up
    * by an overall factor of 8.
+   * cK represents sqrt(2) * cos(K*pi/16).
    */
 
   dataptr = data;
   for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
     /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
+     * rotator "c1" should be "c6".
      */
 
     tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7];
@@ -271,47 +276,49 @@ jpeg_fdct_islow (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
     dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS);
     dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS);
 
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
+    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);       /* c6 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS+PASS1_BITS-1);
+
     dataptr[DCTSIZE*2] = (DCTELEM)
-      RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS);
+      RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), /* c2-c6 */
+		  CONST_BITS+PASS1_BITS);
     dataptr[DCTSIZE*6] = (DCTELEM)
-      RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS);
+      RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), /* c2+c6 */
+		  CONST_BITS+PASS1_BITS);
 
     /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * cK represents sqrt(2) * cos(K*pi/16).
      * i0..i3 in the paper are tmp0..tmp3 here.
      */
 
-    tmp10 = tmp0 + tmp3;
-    tmp11 = tmp1 + tmp2;
     tmp12 = tmp0 + tmp2;
     tmp13 = tmp1 + tmp3;
+
     z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602);       /*  c3 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS+PASS1_BITS-1);
 
-    tmp0  = MULTIPLY(tmp0,    FIX_1_501321110);    /*  c1+c3-c5-c7 */
+    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);          /* -c3+c5 */
-    tmp1  = MULTIPLY(tmp1,    FIX_3_072711026);    /*  c1+c3+c5-c7 */
-    tmp2  = MULTIPLY(tmp2,    FIX_2_053119869);    /*  c1+c3-c5+c7 */
-    tmp3  = MULTIPLY(tmp3,    FIX_0_298631336);    /* -c1+c3+c5-c7 */
-    tmp10 = MULTIPLY(tmp10, - FIX_0_899976223);    /*  c7-c3 */
-    tmp11 = MULTIPLY(tmp11, - FIX_2_562915447);    /* -c1-c3 */
-    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);    /*  c5-c3 */
     tmp13 = MULTIPLY(tmp13, - FIX_1_961570560);          /* -c3-c5 */
-
     tmp12 += z1;
     tmp13 += z1;
 
-    dataptr[DCTSIZE*1] = (DCTELEM)
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223);       /* -c3+c7 */
-      RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS);
+    tmp0 = MULTIPLY(tmp0, FIX_1_501321110);              /*  c1+c3-c5-c7 */
-    dataptr[DCTSIZE*3] = (DCTELEM)
+    tmp3 = MULTIPLY(tmp3, FIX_0_298631336);              /* -c1+c3+c5-c7 */
-      RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS);
+    tmp0 += z1 + tmp12;
-    dataptr[DCTSIZE*5] = (DCTELEM)
+    tmp3 += z1 + tmp13;
-      RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS);
+
-    dataptr[DCTSIZE*7] = (DCTELEM)
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447);       /* -c1-c3 */
-      RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS);
+    tmp1 = MULTIPLY(tmp1, FIX_3_072711026);              /*  c1+c3+c5-c7 */
+    tmp2 = MULTIPLY(tmp2, FIX_2_053119869);              /*  c1+c3-c5+c7 */
+    tmp1 += z1 + tmp13;
+    tmp2 += z1 + tmp12;
+
+    dataptr[DCTSIZE*1] = (DCTELEM) RIGHT_SHIFT(tmp0, CONST_BITS+PASS1_BITS);
+    dataptr[DCTSIZE*3] = (DCTELEM) RIGHT_SHIFT(tmp1, CONST_BITS+PASS1_BITS);
+    dataptr[DCTSIZE*5] = (DCTELEM) RIGHT_SHIFT(tmp2, CONST_BITS+PASS1_BITS);
+    dataptr[DCTSIZE*7] = (DCTELEM) RIGHT_SHIFT(tmp3, CONST_BITS+PASS1_BITS);
 
     dataptr++;			/* advance pointer to next column */
   }
@@ -338,10 +345,11 @@ jpeg_fdct_7x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* cK represents sqrt(2) * cos(K*pi/14). */
+   * cK represents sqrt(2) * cos(K*pi/14).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 7; ctr++) {
@@ -472,10 +480,11 @@ jpeg_fdct_6x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* cK represents sqrt(2) * cos(K*pi/12). */
+   * cK represents sqrt(2) * cos(K*pi/12).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 6; ctr++) {
@@ -585,12 +594,13 @@ jpeg_fdct_5x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We scale the results further by 2 as part of output adaption */
+   * We scale the results further by 2 as part of output adaption
-  /* scaling for different DCT size. */
+   * scaling for different DCT size.
-  /* cK represents sqrt(2) * cos(K*pi/10). */
+   * cK represents sqrt(2) * cos(K*pi/10).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 5; ctr++) {
@@ -695,11 +705,12 @@ jpeg_fdct_4x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We must also scale the output by (8/4)**2 = 2**2, which we add here. */
+   * We must also scale the output by (8/4)**2 = 2**2, which we add here.
-  /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */
+   * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT].
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 4; ctr++) {
@@ -737,6 +748,7 @@ jpeg_fdct_4x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pass 2: process columns.
    * We remove the PASS1_BITS scaling, but leave the results scaled up
    * by an overall factor of 8.
+   * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT].
    */
 
   dataptr = data;
@@ -787,12 +799,13 @@ jpeg_fdct_3x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We scale the results further by 2**2 as part of output adaption */
+   * We scale the results further by 2**2 as part of output adaption
-  /* scaling for different DCT size. */
+   * scaling for different DCT size.
-  /* cK represents sqrt(2) * cos(K*pi/6). */
+   * cK represents sqrt(2) * cos(K*pi/6).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 3; ctr++) {
@@ -869,8 +882,9 @@ jpeg_fdct_2x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT. */
+   * Note results are scaled up by sqrt(8) compared to a true DCT.
+   */
 
   /* Row 0 */
   elemptr = sample_data[0] + start_col;
@@ -935,11 +949,12 @@ jpeg_fdct_9x9 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* we scale the results further by 2 as part of output adaption */
+   * we scale the results further by 2 as part of output adaption
-  /* scaling for different DCT size. */
+   * scaling for different DCT size.
-  /* cK represents sqrt(2) * cos(K*pi/18). */
+   * cK represents sqrt(2) * cos(K*pi/18).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -1084,11 +1099,12 @@ jpeg_fdct_10x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* we scale the results further by 2 as part of output adaption */
+   * we scale the results further by 2 as part of output adaption
-  /* scaling for different DCT size. */
+   * scaling for different DCT size.
-  /* cK represents sqrt(2) * cos(K*pi/20). */
+   * cK represents sqrt(2) * cos(K*pi/20).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -1248,11 +1264,12 @@ jpeg_fdct_11x11 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* we scale the results further by 2 as part of output adaption */
+   * we scale the results further by 2 as part of output adaption
-  /* scaling for different DCT size. */
+   * scaling for different DCT size.
-  /* cK represents sqrt(2) * cos(K*pi/22). */
+   * cK represents sqrt(2) * cos(K*pi/22).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -1430,9 +1447,10 @@ jpeg_fdct_12x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT. */
+   * Note results are scaled up by sqrt(8) compared to a true DCT.
-  /* cK represents sqrt(2) * cos(K*pi/24). */
+   * cK represents sqrt(2) * cos(K*pi/24).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -1596,9 +1614,10 @@ jpeg_fdct_13x13 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT. */
+   * Note results are scaled up by sqrt(8) compared to a true DCT.
-  /* cK represents sqrt(2) * cos(K*pi/26). */
+   * cK represents sqrt(2) * cos(K*pi/26).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -1794,9 +1813,10 @@ jpeg_fdct_14x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT. */
+   * Note results are scaled up by sqrt(8) compared to a true DCT.
-  /* cK represents sqrt(2) * cos(K*pi/28). */
+   * cK represents sqrt(2) * cos(K*pi/28).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -1995,9 +2015,10 @@ jpeg_fdct_15x15 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT. */
+   * Note results are scaled up by sqrt(8) compared to a true DCT.
-  /* cK represents sqrt(2) * cos(K*pi/30). */
+   * cK represents sqrt(2) * cos(K*pi/30).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -2173,10 +2194,11 @@ jpeg_fdct_16x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* cK represents sqrt(2) * cos(K*pi/32). */
+   * cK represents sqrt(2) * cos(K*pi/32).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -2275,6 +2297,7 @@ jpeg_fdct_16x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
    * We remove the PASS1_BITS scaling, but leave the results scaled up
    * by an overall factor of 8.
    * We must also scale the output by (8/16)**2 = 1/2**2.
+   * cK represents sqrt(2) * cos(K*pi/32).
    */
 
   dataptr = data;
@@ -2380,10 +2403,11 @@ jpeg_fdct_16x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32). */
+   * 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -2475,12 +2499,13 @@ jpeg_fdct_16x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
    * We remove the PASS1_BITS scaling, but leave the results scaled up
    * by an overall factor of 8.
    * We must also scale the output by 8/16 = 1/2.
+   * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
    */
 
   dataptr = data;
   for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
     /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
+     * rotator "c1" should be "c6".
      */
 
     tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7];
@@ -2501,43 +2526,43 @@ jpeg_fdct_16x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
     dataptr[DCTSIZE*0] = (DCTELEM) DESCALE(tmp10 + tmp11, PASS1_BITS+1);
     dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp10 - tmp11, PASS1_BITS+1);
 
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
+    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);   /* c6 */
-    dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865),
+    dataptr[DCTSIZE*2] = (DCTELEM)
+      DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), /* c2-c6 */
 	      CONST_BITS+PASS1_BITS+1);
-    dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065),
+    dataptr[DCTSIZE*6] = (DCTELEM)
+      DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), /* c2+c6 */
 	      CONST_BITS+PASS1_BITS+1);
 
     /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
      * i0..i3 in the paper are tmp0..tmp3 here.
      */
 
-    tmp10 = tmp0 + tmp3;
-    tmp11 = tmp1 + tmp2;
     tmp12 = tmp0 + tmp2;
     tmp13 = tmp1 + tmp3;
+
     z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602);   /*  c3 */
-
+    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);      /* -c3+c5 */
-    tmp0  = MULTIPLY(tmp0,    FIX_1_501321110);    /*  c1+c3-c5-c7 */
-    tmp1  = MULTIPLY(tmp1,    FIX_3_072711026);    /*  c1+c3+c5-c7 */
-    tmp2  = MULTIPLY(tmp2,    FIX_2_053119869);    /*  c1+c3-c5+c7 */
-    tmp3  = MULTIPLY(tmp3,    FIX_0_298631336);    /* -c1+c3+c5-c7 */
-    tmp10 = MULTIPLY(tmp10, - FIX_0_899976223);    /*  c7-c3 */
-    tmp11 = MULTIPLY(tmp11, - FIX_2_562915447);    /* -c1-c3 */
-    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);    /*  c5-c3 */
     tmp13 = MULTIPLY(tmp13, - FIX_1_961570560);      /* -c3-c5 */
-
     tmp12 += z1;
     tmp13 += z1;
 
-    dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12,
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223);   /* -c3+c7 */
-					   CONST_BITS+PASS1_BITS+1);
+    tmp0 = MULTIPLY(tmp0, FIX_1_501321110);          /*  c1+c3-c5-c7 */
-    dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13,
+    tmp3 = MULTIPLY(tmp3, FIX_0_298631336);          /* -c1+c3+c5-c7 */
-					   CONST_BITS+PASS1_BITS+1);
+    tmp0 += z1 + tmp12;
-    dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12,
+    tmp3 += z1 + tmp13;
-					   CONST_BITS+PASS1_BITS+1);
+
-    dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13,
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447);   /* -c1-c3 */
-					   CONST_BITS+PASS1_BITS+1);
+    tmp1 = MULTIPLY(tmp1, FIX_3_072711026);          /*  c1+c3+c5-c7 */
+    tmp2 = MULTIPLY(tmp2, FIX_2_053119869);          /*  c1+c3-c5+c7 */
+    tmp1 += z1 + tmp13;
+    tmp2 += z1 + tmp12;
+
+    dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+PASS1_BITS+1);
+    dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+PASS1_BITS+1);
+    dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+PASS1_BITS+1);
+    dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+PASS1_BITS+1);
 
     dataptr++;			/* advance pointer to next column */
   }
@@ -2564,10 +2589,11 @@ jpeg_fdct_14x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Zero bottom row of output coefficient block. */
   MEMZERO(&data[DCTSIZE*7], SIZEOF(DCTELEM) * DCTSIZE);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28). */
+   * 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 7; ctr++) {
@@ -2727,10 +2753,11 @@ jpeg_fdct_12x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Zero 2 bottom rows of output coefficient block. */
   MEMZERO(&data[DCTSIZE*6], SIZEOF(DCTELEM) * DCTSIZE * 2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24). */
+   * 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 6; ctr++) {
@@ -2866,10 +2893,11 @@ jpeg_fdct_10x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Zero 3 bottom rows of output coefficient block. */
   MEMZERO(&data[DCTSIZE*5], SIZEOF(DCTELEM) * DCTSIZE * 3);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20). */
+   * 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 5; ctr++) {
@@ -2999,17 +3027,19 @@ jpeg_fdct_8x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Zero 4 bottom rows of output coefficient block. */
   MEMZERO(&data[DCTSIZE*4], SIZEOF(DCTELEM) * DCTSIZE * 4);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We must also scale the output by 8/4 = 2, which we add here. */
+   * We must also scale the output by 8/4 = 2, which we add here.
+   * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 4; ctr++) {
     elemptr = sample_data[ctr] + start_col;
 
     /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
+     * rotator "c1" should be "c6".
      */
 
     tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]);
@@ -3032,47 +3062,49 @@ jpeg_fdct_8x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
       ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << (PASS1_BITS+1));
     dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << (PASS1_BITS+1));
 
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
+    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);       /* c6 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS-PASS1_BITS-2);
-    dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865),
+
+    dataptr[2] = (DCTELEM)
+      RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), /* c2-c6 */
 		  CONST_BITS-PASS1_BITS-1);
-    dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065),
+    dataptr[6] = (DCTELEM)
+      RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), /* c2+c6 */
 		  CONST_BITS-PASS1_BITS-1);
 
     /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
      * i0..i3 in the paper are tmp0..tmp3 here.
      */
 
-    tmp10 = tmp0 + tmp3;
-    tmp11 = tmp1 + tmp2;
     tmp12 = tmp0 + tmp2;
     tmp13 = tmp1 + tmp3;
+
     z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602);       /*  c3 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS-PASS1_BITS-2);
 
-    tmp0  = MULTIPLY(tmp0,    FIX_1_501321110);    /*  c1+c3-c5-c7 */
+    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);          /* -c3+c5 */
-    tmp1  = MULTIPLY(tmp1,    FIX_3_072711026);    /*  c1+c3+c5-c7 */
-    tmp2  = MULTIPLY(tmp2,    FIX_2_053119869);    /*  c1+c3-c5+c7 */
-    tmp3  = MULTIPLY(tmp3,    FIX_0_298631336);    /* -c1+c3+c5-c7 */
-    tmp10 = MULTIPLY(tmp10, - FIX_0_899976223);    /*  c7-c3 */
-    tmp11 = MULTIPLY(tmp11, - FIX_2_562915447);    /* -c1-c3 */
-    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);    /*  c5-c3 */
     tmp13 = MULTIPLY(tmp13, - FIX_1_961570560);          /* -c3-c5 */
-
     tmp12 += z1;
     tmp13 += z1;
 
-    dataptr[1] = (DCTELEM)
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223);       /* -c3+c7 */
-      RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS-1);
+    tmp0 = MULTIPLY(tmp0, FIX_1_501321110);              /*  c1+c3-c5-c7 */
-    dataptr[3] = (DCTELEM)
+    tmp3 = MULTIPLY(tmp3, FIX_0_298631336);              /* -c1+c3+c5-c7 */
-      RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS-1);
+    tmp0 += z1 + tmp12;
-    dataptr[5] = (DCTELEM)
+    tmp3 += z1 + tmp13;
-      RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS-1);
+
-    dataptr[7] = (DCTELEM)
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447);       /* -c1-c3 */
-      RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS-1);
+    tmp1 = MULTIPLY(tmp1, FIX_3_072711026);              /*  c1+c3+c5-c7 */
+    tmp2 = MULTIPLY(tmp2, FIX_2_053119869);              /*  c1+c3-c5+c7 */
+    tmp1 += z1 + tmp13;
+    tmp2 += z1 + tmp12;
+
+    dataptr[1] = (DCTELEM) RIGHT_SHIFT(tmp0, CONST_BITS-PASS1_BITS-1);
+    dataptr[3] = (DCTELEM) RIGHT_SHIFT(tmp1, CONST_BITS-PASS1_BITS-1);
+    dataptr[5] = (DCTELEM) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS-1);
+    dataptr[7] = (DCTELEM) RIGHT_SHIFT(tmp3, CONST_BITS-PASS1_BITS-1);
 
     dataptr += DCTSIZE;		/* advance pointer to next row */
   }
@@ -3080,7 +3112,8 @@ jpeg_fdct_8x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pass 2: process columns.
    * We remove the PASS1_BITS scaling, but leave the results scaled up
    * by an overall factor of 8.
-   * 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   * 4-point FDCT kernel,
+   * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT].
    */
 
   dataptr = data;
@@ -3134,12 +3167,13 @@ jpeg_fdct_6x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We scale the results further by 2 as part of output adaption */
+   * We scale the results further by 2 as part of output adaption
-  /* scaling for different DCT size. */
+   * scaling for different DCT size.
-  /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */
+   * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 3; ctr++) {
@@ -3234,12 +3268,13 @@ jpeg_fdct_4x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We must also scale the output by (8/4)*(8/2) = 2**3, which we add here. */
+   * We must also scale the output by (8/4)*(8/2) = 2**3, which we add here.
-  /* 4-point FDCT kernel, */
+   * 4-point FDCT kernel,
-  /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */
+   * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT].
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 2; ctr++) {
@@ -3323,10 +3358,12 @@ jpeg_fdct_2x1 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
    */
 
   /* Even part */
+
   /* Apply unsigned->signed conversion */
   data[0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5);
 
   /* Odd part */
+
   data[1] = (DCTELEM) ((tmp0 - tmp1) << 5);
 }
 
@@ -3350,9 +3387,11 @@ jpeg_fdct_8x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   int ctr;
   SHIFT_TEMPS
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
+   * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -3360,7 +3399,7 @@ jpeg_fdct_8x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
     elemptr = sample_data[ctr] + start_col;
 
     /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
+     * rotator "c1" should be "c6".
      */
 
     tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]);
@@ -3382,39 +3421,43 @@ jpeg_fdct_8x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
     dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS);
     dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS);
 
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
+    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);   /* c6 */
-    dataptr[2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865),
+    dataptr[2] = (DCTELEM)
+      DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), /* c2-c6 */
 	      CONST_BITS-PASS1_BITS);
-    dataptr[6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065),
+    dataptr[6] = (DCTELEM)
+      DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), /* c2+c6 */
 	      CONST_BITS-PASS1_BITS);
 
     /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
      * i0..i3 in the paper are tmp0..tmp3 here.
      */
 
-    tmp10 = tmp0 + tmp3;
-    tmp11 = tmp1 + tmp2;
     tmp12 = tmp0 + tmp2;
     tmp13 = tmp1 + tmp3;
+
     z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602);   /*  c3 */
-
+    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);      /* -c3+c5 */
-    tmp0  = MULTIPLY(tmp0,    FIX_1_501321110);    /*  c1+c3-c5-c7 */
-    tmp1  = MULTIPLY(tmp1,    FIX_3_072711026);    /*  c1+c3+c5-c7 */
-    tmp2  = MULTIPLY(tmp2,    FIX_2_053119869);    /*  c1+c3-c5+c7 */
-    tmp3  = MULTIPLY(tmp3,    FIX_0_298631336);    /* -c1+c3+c5-c7 */
-    tmp10 = MULTIPLY(tmp10, - FIX_0_899976223);    /*  c7-c3 */
-    tmp11 = MULTIPLY(tmp11, - FIX_2_562915447);    /* -c1-c3 */
-    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);    /*  c5-c3 */
     tmp13 = MULTIPLY(tmp13, - FIX_1_961570560);      /* -c3-c5 */
-
     tmp12 += z1;
     tmp13 += z1;
 
-    dataptr[1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS);
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223);   /* -c3+c7 */
-    dataptr[3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS);
+    tmp0 = MULTIPLY(tmp0, FIX_1_501321110);          /*  c1+c3-c5-c7 */
-    dataptr[5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS);
+    tmp3 = MULTIPLY(tmp3, FIX_0_298631336);          /* -c1+c3+c5-c7 */
-    dataptr[7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS);
+    tmp0 += z1 + tmp12;
+    tmp3 += z1 + tmp13;
+
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447);   /* -c1-c3 */
+    tmp1 = MULTIPLY(tmp1, FIX_3_072711026);          /*  c1+c3+c5-c7 */
+    tmp2 = MULTIPLY(tmp2, FIX_2_053119869);          /*  c1+c3-c5+c7 */
+    tmp1 += z1 + tmp13;
+    tmp2 += z1 + tmp12;
+
+    dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-PASS1_BITS);
+    dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-PASS1_BITS);
+    dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-PASS1_BITS);
+    dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS-PASS1_BITS);
 
     ctr++;
 
@@ -3541,10 +3584,11 @@ jpeg_fdct_7x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14). */
+   * 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -3721,10 +3765,11 @@ jpeg_fdct_6x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */
+   * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -3870,10 +3915,11 @@ jpeg_fdct_5x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10). */
+   * 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10).
+   */
 
   dataptr = data;
   ctr = 0;
@@ -4015,11 +4061,13 @@ jpeg_fdct_4x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We must also scale the output by 8/4 = 2, which we add here. */
+   * We must also scale the output by 8/4 = 2, which we add here.
-  /* 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). */
+   * 4-point FDCT kernel,
+   * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT].
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < DCTSIZE; ctr++) {
@@ -4057,12 +4105,13 @@ jpeg_fdct_4x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pass 2: process columns.
    * We remove the PASS1_BITS scaling, but leave the results scaled up
    * by an overall factor of 8.
+   * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
    */
 
   dataptr = data;
   for (ctr = 0; ctr < 4; ctr++) {
     /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
+     * rotator "c1" should be "c6".
      */
 
     tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7];
@@ -4084,47 +4133,49 @@ jpeg_fdct_4x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
     dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS);
     dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS);
 
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
+    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);       /* c6 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS+PASS1_BITS-1);
+
     dataptr[DCTSIZE*2] = (DCTELEM)
-      RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS);
+      RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), /* c2-c6 */
+		  CONST_BITS+PASS1_BITS);
     dataptr[DCTSIZE*6] = (DCTELEM)
-      RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS);
+      RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), /* c2+c6 */
+		  CONST_BITS+PASS1_BITS);
 
     /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
      * i0..i3 in the paper are tmp0..tmp3 here.
      */
 
-    tmp10 = tmp0 + tmp3;
-    tmp11 = tmp1 + tmp2;
     tmp12 = tmp0 + tmp2;
     tmp13 = tmp1 + tmp3;
+
     z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602);       /*  c3 */
     /* Add fudge factor here for final descale. */
     z1 += ONE << (CONST_BITS+PASS1_BITS-1);
 
-    tmp0  = MULTIPLY(tmp0,    FIX_1_501321110);    /*  c1+c3-c5-c7 */
+    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);          /* -c3+c5 */
-    tmp1  = MULTIPLY(tmp1,    FIX_3_072711026);    /*  c1+c3+c5-c7 */
-    tmp2  = MULTIPLY(tmp2,    FIX_2_053119869);    /*  c1+c3-c5+c7 */
-    tmp3  = MULTIPLY(tmp3,    FIX_0_298631336);    /* -c1+c3+c5-c7 */
-    tmp10 = MULTIPLY(tmp10, - FIX_0_899976223);    /*  c7-c3 */
-    tmp11 = MULTIPLY(tmp11, - FIX_2_562915447);    /* -c1-c3 */
-    tmp12 = MULTIPLY(tmp12, - FIX_0_390180644);    /*  c5-c3 */
     tmp13 = MULTIPLY(tmp13, - FIX_1_961570560);          /* -c3-c5 */
-
     tmp12 += z1;
     tmp13 += z1;
 
-    dataptr[DCTSIZE*1] = (DCTELEM)
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223);       /* -c3+c7 */
-      RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS);
+    tmp0 = MULTIPLY(tmp0, FIX_1_501321110);              /*  c1+c3-c5-c7 */
-    dataptr[DCTSIZE*3] = (DCTELEM)
+    tmp3 = MULTIPLY(tmp3, FIX_0_298631336);              /* -c1+c3+c5-c7 */
-      RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS);
+    tmp0 += z1 + tmp12;
-    dataptr[DCTSIZE*5] = (DCTELEM)
+    tmp3 += z1 + tmp13;
-      RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS);
+
-    dataptr[DCTSIZE*7] = (DCTELEM)
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447);       /* -c1-c3 */
-      RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS);
+    tmp1 = MULTIPLY(tmp1, FIX_3_072711026);              /*  c1+c3+c5-c7 */
+    tmp2 = MULTIPLY(tmp2, FIX_2_053119869);              /*  c1+c3-c5+c7 */
+    tmp1 += z1 + tmp13;
+    tmp2 += z1 + tmp12;
+
+    dataptr[DCTSIZE*1] = (DCTELEM) RIGHT_SHIFT(tmp0, CONST_BITS+PASS1_BITS);
+    dataptr[DCTSIZE*3] = (DCTELEM) RIGHT_SHIFT(tmp1, CONST_BITS+PASS1_BITS);
+    dataptr[DCTSIZE*5] = (DCTELEM) RIGHT_SHIFT(tmp2, CONST_BITS+PASS1_BITS);
+    dataptr[DCTSIZE*7] = (DCTELEM) RIGHT_SHIFT(tmp3, CONST_BITS+PASS1_BITS);
 
     dataptr++;			/* advance pointer to next column */
   }
@@ -4150,12 +4201,13 @@ jpeg_fdct_3x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
+   * Note results are scaled up by sqrt(8) compared to a true DCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
-  /* We scale the results further by 2 as part of output adaption */
+   * We scale the results further by 2 as part of output adaption
-  /* scaling for different DCT size. */
+   * scaling for different DCT size.
-  /* 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6). */
+   * 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6).
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 6; ctr++) {
@@ -4255,9 +4307,10 @@ jpeg_fdct_2x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows.
-  /* Note results are scaled up by sqrt(8) compared to a true DCT. */
+   * Note results are scaled up by sqrt(8) compared to a true DCT.
-  /* We must also scale the output by (8/2)*(8/4) = 2**3, which we add here. */
+   * We must also scale the output by (8/2)*(8/4) = 2**3, which we add here.
+   */
 
   dataptr = data;
   for (ctr = 0; ctr < 4; ctr++) {
@@ -4329,18 +4382,23 @@ jpeg_fdct_1x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)
   /* Pre-zero output coefficient block. */
   MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2);
 
-  tmp0 = GETJSAMPLE(sample_data[0][start_col]);
+  /* Pass 1: empty. */
-  tmp1 = GETJSAMPLE(sample_data[1][start_col]);
 
-  /* We leave the results scaled up by an overall factor of 8.
+  /* Pass 2: process columns.
+   * We leave the results scaled up by an overall factor of 8.
    * We must also scale the output by (8/1)*(8/2) = 2**5.
    */
 
   /* Even part */
+
+  tmp0 = GETJSAMPLE(sample_data[0][start_col]);
+  tmp1 = GETJSAMPLE(sample_data[1][start_col]);
+
   /* Apply unsigned->signed conversion */
   data[DCTSIZE*0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5);
 
   /* Odd part */
+
   data[DCTSIZE*1] = (DCTELEM) ((tmp0 - tmp1) << 5);
 }
 

jidctflt.c

@@ -2,6 +2,7 @@
  * jidctflt.c
  *
  * Copyright (C) 1994-1998, Thomas G. Lane.
+ * Modified 2010 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -76,10 +77,9 @@ jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   FLOAT_MULT_TYPE * quantptr;
   FAST_FLOAT * wsptr;
   JSAMPROW outptr;
-  JSAMPLE *range_limit = IDCT_range_limit(cinfo);
+  JSAMPLE *range_limit = cinfo->sample_range_limit;
   int ctr;
   FAST_FLOAT workspace[DCTSIZE2]; /* buffers data between passes */
-  SHIFT_TEMPS
 
   /* Pass 1: process columns from input, store into work array. */
 
@@ -152,12 +152,12 @@ jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); /* 2*c4 */
 
     z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */
-    tmp10 = ((FAST_FLOAT) 1.082392200) * z12 - z5; /* 2*(c2-c6) */
+    tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */
-    tmp12 = ((FAST_FLOAT) -2.613125930) * z10 + z5; /* -2*(c2+c6) */
+    tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */
 
     tmp6 = tmp12 - tmp7;	/* phase 2 */
     tmp5 = tmp11 - tmp6;
-    tmp4 = tmp10 + tmp5;
+    tmp4 = tmp10 - tmp5;
 
     wsptr[DCTSIZE*0] = tmp0 + tmp7;
     wsptr[DCTSIZE*7] = tmp0 - tmp7;
@@ -165,8 +165,8 @@ jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     wsptr[DCTSIZE*6] = tmp1 - tmp6;
     wsptr[DCTSIZE*2] = tmp2 + tmp5;
     wsptr[DCTSIZE*5] = tmp2 - tmp5;
-    wsptr[DCTSIZE*4] = tmp3 + tmp4;
+    wsptr[DCTSIZE*3] = tmp3 + tmp4;
-    wsptr[DCTSIZE*3] = tmp3 - tmp4;
+    wsptr[DCTSIZE*4] = tmp3 - tmp4;
 
     inptr++;			/* advance pointers to next column */
     quantptr++;
@@ -174,7 +174,6 @@ jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   }
   
   /* Pass 2: process rows from work array, store into output array. */
-  /* Note that we must descale the results by a factor of 8 == 2**3. */
 
   wsptr = workspace;
   for (ctr = 0; ctr < DCTSIZE; ctr++) {
@@ -187,8 +186,10 @@ jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     
     /* Even part */
 
-    tmp10 = wsptr[0] + wsptr[4];
+    /* Apply signed->unsigned and prepare float->int conversion */
-    tmp11 = wsptr[0] - wsptr[4];
+    z5 = wsptr[0] + ((FAST_FLOAT) CENTERJSAMPLE + (FAST_FLOAT) 0.5);
+    tmp10 = z5 + wsptr[4];
+    tmp11 = z5 - wsptr[4];
 
     tmp13 = wsptr[2] + wsptr[6];
     tmp12 = (wsptr[2] - wsptr[6]) * ((FAST_FLOAT) 1.414213562) - tmp13;
@@ -209,31 +210,23 @@ jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562);
 
     z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */
-    tmp10 = ((FAST_FLOAT) 1.082392200) * z12 - z5; /* 2*(c2-c6) */
+    tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */
-    tmp12 = ((FAST_FLOAT) -2.613125930) * z10 + z5; /* -2*(c2+c6) */
+    tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */
 
     tmp6 = tmp12 - tmp7;
     tmp5 = tmp11 - tmp6;
-    tmp4 = tmp10 + tmp5;
+    tmp4 = tmp10 - tmp5;
 
-    /* Final output stage: scale down by a factor of 8 and range-limit */
+    /* Final output stage: float->int conversion and range-limit */
 
-    outptr[0] = range_limit[(int) DESCALE((INT32) (tmp0 + tmp7), 3)
+    outptr[0] = range_limit[((int) (tmp0 + tmp7)) & RANGE_MASK];
-			    & RANGE_MASK];
+    outptr[7] = range_limit[((int) (tmp0 - tmp7)) & RANGE_MASK];
-    outptr[7] = range_limit[(int) DESCALE((INT32) (tmp0 - tmp7), 3)
+    outptr[1] = range_limit[((int) (tmp1 + tmp6)) & RANGE_MASK];
-			    & RANGE_MASK];
+    outptr[6] = range_limit[((int) (tmp1 - tmp6)) & RANGE_MASK];
-    outptr[1] = range_limit[(int) DESCALE((INT32) (tmp1 + tmp6), 3)
+    outptr[2] = range_limit[((int) (tmp2 + tmp5)) & RANGE_MASK];
-			    & RANGE_MASK];
+    outptr[5] = range_limit[((int) (tmp2 - tmp5)) & RANGE_MASK];
-    outptr[6] = range_limit[(int) DESCALE((INT32) (tmp1 - tmp6), 3)
+    outptr[3] = range_limit[((int) (tmp3 + tmp4)) & RANGE_MASK];
-			    & RANGE_MASK];
+    outptr[4] = range_limit[((int) (tmp3 - tmp4)) & RANGE_MASK];
-    outptr[2] = range_limit[(int) DESCALE((INT32) (tmp2 + tmp5), 3)
-			    & RANGE_MASK];
-    outptr[5] = range_limit[(int) DESCALE((INT32) (tmp2 - tmp5), 3)
-			    & RANGE_MASK];
-    outptr[4] = range_limit[(int) DESCALE((INT32) (tmp3 + tmp4), 3)
-			    & RANGE_MASK];
-    outptr[3] = range_limit[(int) DESCALE((INT32) (tmp3 - tmp4), 3)
-			    & RANGE_MASK];
     
     wsptr += DCTSIZE;		/* advance pointer to next row */
   }

jidctint.c

@@ -2,7 +2,7 @@
  * jidctint.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
- * Modification developed 2002-2009 by Guido Vollbeding.
+ * Modification developed 2002-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -165,6 +165,8 @@
 
 /*
  * Perform dequantization and inverse DCT on one block of coefficients.
+ *
+ * cK represents sqrt(2) * cos(K*pi/16).
  */
 
 GLOBAL(void)
@@ -184,9 +186,10 @@ jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   int workspace[DCTSIZE2];	/* buffers data between passes */
   SHIFT_TEMPS
 
-  /* Pass 1: process columns from input, store into work array. */
+  /* Pass 1: process columns from input, store into work array.
-  /* Note results are scaled up by sqrt(8) compared to a true IDCT; */
+   * Note results are scaled up by sqrt(8) compared to a true IDCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
+   */
 
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
@@ -223,15 +226,16 @@ jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
       continue;
     }
 
-    /* Even part: reverse the even part of the forward DCT. */
+    /* Even part: reverse the even part of the forward DCT.
-    /* The rotator is sqrt(2)*c(-6). */
+     * The rotator is c(-6).
+     */
 
     z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]);
     z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]);
 
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);       /* c6 */
-    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);
+    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);     /* c2-c6 */
-    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);
+    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);     /* c2+c6 */
 
     z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
     z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]);
@@ -260,21 +264,21 @@ jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     z2 = tmp0 + tmp2;
     z3 = tmp1 + tmp3;
 
-    z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */
+    z1 = MULTIPLY(z2 + z3, FIX_1_175875602);       /*  c3 */
-    z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+    z2 = MULTIPLY(z2, - FIX_1_961570560);          /* -c3-c5 */
-    z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+    z3 = MULTIPLY(z3, - FIX_0_390180644);          /* -c3+c5 */
     z2 += z1;
     z3 += z1;
 
-    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* -c3+c7 */
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+    tmp0 = MULTIPLY(tmp0, FIX_0_298631336);        /* -c1+c3+c5-c7 */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+    tmp3 = MULTIPLY(tmp3, FIX_1_501321110);        /*  c1+c3-c5-c7 */
     tmp0 += z1 + z2;
     tmp3 += z1 + z3;
 
-    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* -c1-c3 */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+    tmp1 = MULTIPLY(tmp1, FIX_2_053119869);        /*  c1+c3-c5+c7 */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+    tmp2 = MULTIPLY(tmp2, FIX_3_072711026);        /*  c1+c3+c5-c7 */
     tmp1 += z1 + z3;
     tmp2 += z1 + z2;
 
@@ -294,9 +298,10 @@ jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     wsptr++;
   }
 
-  /* Pass 2: process rows from work array, store into output array. */
+  /* Pass 2: process rows from work array, store into output array.
-  /* Note that we must descale the results by a factor of 8 == 2**3, */
+   * Note that we must descale the results by a factor of 8 == 2**3,
-  /* and also undo the PASS1_BITS scaling. */
+   * and also undo the PASS1_BITS scaling.
+   */
 
   wsptr = workspace;
   for (ctr = 0; ctr < DCTSIZE; ctr++) {
@@ -330,15 +335,16 @@ jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     }
 #endif
 
-    /* Even part: reverse the even part of the forward DCT. */
+    /* Even part: reverse the even part of the forward DCT.
-    /* The rotator is sqrt(2)*c(-6). */
+     * The rotator is c(-6).
+     */
 
     z2 = (INT32) wsptr[2];
     z3 = (INT32) wsptr[6];
 
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);       /* c6 */
-    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);
+    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);     /* c2-c6 */
-    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);
+    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);     /* c2+c6 */
 
     /* Add fudge factor here for final descale. */
     z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2));
@@ -364,21 +370,21 @@ jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     z2 = tmp0 + tmp2;
     z3 = tmp1 + tmp3;
 
-    z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */
+    z1 = MULTIPLY(z2 + z3, FIX_1_175875602);       /*  c3 */
-    z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+    z2 = MULTIPLY(z2, - FIX_1_961570560);          /* -c3-c5 */
-    z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+    z3 = MULTIPLY(z3, - FIX_0_390180644);          /* -c3+c5 */
     z2 += z1;
     z3 += z1;
 
-    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* -c3+c7 */
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+    tmp0 = MULTIPLY(tmp0, FIX_0_298631336);        /* -c1+c3+c5-c7 */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+    tmp3 = MULTIPLY(tmp3, FIX_1_501321110);        /*  c1+c3-c5-c7 */
     tmp0 += z1 + z2;
     tmp3 += z1 + z3;
 
-    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* -c1-c3 */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+    tmp1 = MULTIPLY(tmp1, FIX_2_053119869);        /*  c1+c3-c5+c7 */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+    tmp2 = MULTIPLY(tmp2, FIX_3_072711026);        /*  c1+c3+c5-c7 */
     tmp1 += z1 + z3;
     tmp2 += z1 + z2;
 
@@ -2835,9 +2841,11 @@ jpeg_idct_16x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   int workspace[8*8];	/* buffers data between passes */
   SHIFT_TEMPS
 
-  /* Pass 1: process columns from input, store into work array. */
+  /* Pass 1: process columns from input, store into work array.
-  /* Note results are scaled up by sqrt(8) compared to a true IDCT; */
+   * Note results are scaled up by sqrt(8) compared to a true IDCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
+   * 8-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   */
 
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
@@ -2874,15 +2882,16 @@ jpeg_idct_16x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
       continue;
     }
 
-    /* Even part: reverse the even part of the forward DCT. */
+    /* Even part: reverse the even part of the forward DCT.
-    /* The rotator is sqrt(2)*c(-6). */
+     * The rotator is c(-6).
+     */
 
     z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]);
     z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]);
 
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);       /* c6 */
-    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);
+    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);     /* c2-c6 */
-    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);
+    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);     /* c2+c6 */
 
     z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
     z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]);
@@ -2911,21 +2920,21 @@ jpeg_idct_16x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     z2 = tmp0 + tmp2;
     z3 = tmp1 + tmp3;
 
-    z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */
+    z1 = MULTIPLY(z2 + z3, FIX_1_175875602);       /*  c3 */
-    z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+    z2 = MULTIPLY(z2, - FIX_1_961570560);          /* -c3-c5 */
-    z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+    z3 = MULTIPLY(z3, - FIX_0_390180644);          /* -c3+c5 */
     z2 += z1;
     z3 += z1;
 
-    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* -c3+c7 */
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+    tmp0 = MULTIPLY(tmp0, FIX_0_298631336);        /* -c1+c3+c5-c7 */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+    tmp3 = MULTIPLY(tmp3, FIX_1_501321110);        /*  c1+c3-c5-c7 */
     tmp0 += z1 + z2;
     tmp3 += z1 + z3;
 
-    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* -c1-c3 */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+    tmp1 = MULTIPLY(tmp1, FIX_2_053119869);        /*  c1+c3-c5+c7 */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+    tmp2 = MULTIPLY(tmp2, FIX_3_072711026);        /*  c1+c3+c5-c7 */
     tmp1 += z1 + z3;
     tmp2 += z1 + z2;
 
@@ -2948,6 +2957,7 @@ jpeg_idct_16x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 8 rows from work array, store into output array.
    * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 8; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -3109,6 +3119,7 @@ jpeg_idct_14x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -3164,6 +3175,7 @@ jpeg_idct_14x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 7 rows from work array, store into output array.
    * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 7; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -3304,6 +3316,7 @@ jpeg_idct_12x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -3346,6 +3359,7 @@ jpeg_idct_12x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 6 rows from work array, store into output array.
    * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 6; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -3480,6 +3494,7 @@ jpeg_idct_10x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -3520,6 +3535,7 @@ jpeg_idct_10x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 5 rows from work array, store into output array.
    * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 5; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -3639,8 +3655,10 @@ jpeg_idct_8x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   SHIFT_TEMPS
 
   /* Pass 1: process columns from input, store into work array.
-   * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   * 4-point IDCT kernel,
+   * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT].
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -3675,23 +3693,26 @@ jpeg_idct_8x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     wsptr[8*2] = (int) (tmp12 - tmp2);
   }
 
-  /* Pass 2: process rows from work array, store into output array. */
+  /* Pass 2: process rows from work array, store into output array.
-  /* Note that we must descale the results by a factor of 8 == 2**3, */
+   * Note that we must descale the results by a factor of 8 == 2**3,
-  /* and also undo the PASS1_BITS scaling. */
+   * and also undo the PASS1_BITS scaling.
+   * 8-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   */
 
   wsptr = workspace;
   for (ctr = 0; ctr < 4; ctr++) {
     outptr = output_buf[ctr] + output_col;
 
-    /* Even part: reverse the even part of the forward DCT. */
+    /* Even part: reverse the even part of the forward DCT.
-    /* The rotator is sqrt(2)*c(-6). */
+     * The rotator is c(-6).
+     */
 
     z2 = (INT32) wsptr[2];
     z3 = (INT32) wsptr[6];
 
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);       /* c6 */
-    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);
+    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);     /* c2-c6 */
-    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);
+    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);     /* c2+c6 */
 
     /* Add fudge factor here for final descale. */
     z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2));
@@ -3717,21 +3738,21 @@ jpeg_idct_8x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     z2 = tmp0 + tmp2;
     z3 = tmp1 + tmp3;
 
-    z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */
+    z1 = MULTIPLY(z2 + z3, FIX_1_175875602);       /*  c3 */
-    z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+    z2 = MULTIPLY(z2, - FIX_1_961570560);          /* -c3-c5 */
-    z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+    z3 = MULTIPLY(z3, - FIX_0_390180644);          /* -c3+c5 */
     z2 += z1;
     z3 += z1;
 
-    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* -c3+c7 */
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+    tmp0 = MULTIPLY(tmp0, FIX_0_298631336);        /* -c1+c3+c5-c7 */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+    tmp3 = MULTIPLY(tmp3, FIX_1_501321110);        /*  c1+c3-c5-c7 */
     tmp0 += z1 + z2;
     tmp3 += z1 + z3;
 
-    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* -c1-c3 */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+    tmp1 = MULTIPLY(tmp1, FIX_2_053119869);        /*  c1+c3-c5+c7 */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+    tmp2 = MULTIPLY(tmp2, FIX_3_072711026);        /*  c1+c3+c5-c7 */
     tmp1 += z1 + z3;
     tmp2 += z1 + z2;
 
@@ -3793,6 +3814,7 @@ jpeg_idct_6x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -3823,6 +3845,7 @@ jpeg_idct_6x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 3 rows from work array, store into output array.
    * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 3; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -3924,6 +3947,7 @@ jpeg_idct_4x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    * 4-point IDCT kernel,
    * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT].
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 2; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -3979,7 +4003,7 @@ jpeg_idct_2x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
 	       JCOEFPTR coef_block,
 	       JSAMPARRAY output_buf, JDIMENSION output_col)
 {
-  INT32 tmp0, tmp10;
+  INT32 tmp0, tmp1;
   ISLOW_MULT_TYPE * quantptr;
   JSAMPROW outptr;
   JSAMPLE *range_limit = IDCT_range_limit(cinfo);
@@ -3994,18 +4018,18 @@ jpeg_idct_2x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   /* Even part */
 
-  tmp10 = DEQUANTIZE(coef_block[0], quantptr[0]);
+  tmp0 = DEQUANTIZE(coef_block[0], quantptr[0]);
   /* Add fudge factor here for final descale. */
-  tmp10 += ONE << 2;
+  tmp0 += ONE << 2;
 
   /* Odd part */
 
-  tmp0 = DEQUANTIZE(coef_block[1], quantptr[1]);
+  tmp1 = DEQUANTIZE(coef_block[1], quantptr[1]);
 
   /* Final output stage */
 
-  outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3) & RANGE_MASK];
+  outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp0 + tmp1, 3) & RANGE_MASK];
-  outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3) & RANGE_MASK];
+  outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp0 - tmp1, 3) & RANGE_MASK];
 }
 
 
@@ -4036,6 +4060,7 @@ jpeg_idct_8x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -4135,23 +4160,26 @@ jpeg_idct_8x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     wsptr[8*8]  = (int) RIGHT_SHIFT(tmp27 - tmp13, CONST_BITS-PASS1_BITS);
   }
 
-  /* Pass 2: process rows from work array, store into output array. */
+  /* Pass 2: process rows from work array, store into output array.
-  /* Note that we must descale the results by a factor of 8 == 2**3, */
+   * Note that we must descale the results by a factor of 8 == 2**3,
-  /* and also undo the PASS1_BITS scaling. */
+   * and also undo the PASS1_BITS scaling.
+   * 8-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   */
 
   wsptr = workspace;
   for (ctr = 0; ctr < 16; ctr++) {
     outptr = output_buf[ctr] + output_col;
 
-    /* Even part: reverse the even part of the forward DCT. */
+    /* Even part: reverse the even part of the forward DCT.
-    /* The rotator is sqrt(2)*c(-6). */
+     * The rotator is c(-6).
+     */
 
     z2 = (INT32) wsptr[2];
     z3 = (INT32) wsptr[6];
 
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);       /* c6 */
-    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);
+    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);     /* c2-c6 */
-    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);
+    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);     /* c2+c6 */
 
     /* Add fudge factor here for final descale. */
     z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2));
@@ -4177,21 +4205,21 @@ jpeg_idct_8x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     z2 = tmp0 + tmp2;
     z3 = tmp1 + tmp3;
 
-    z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */
+    z1 = MULTIPLY(z2 + z3, FIX_1_175875602);       /*  c3 */
-    z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+    z2 = MULTIPLY(z2, - FIX_1_961570560);          /* -c3-c5 */
-    z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+    z3 = MULTIPLY(z3, - FIX_0_390180644);          /* -c3+c5 */
     z2 += z1;
     z3 += z1;
 
-    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* -c3+c7 */
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+    tmp0 = MULTIPLY(tmp0, FIX_0_298631336);        /* -c1+c3+c5-c7 */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+    tmp3 = MULTIPLY(tmp3, FIX_1_501321110);        /*  c1+c3-c5-c7 */
     tmp0 += z1 + z2;
     tmp3 += z1 + z3;
 
-    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* -c1-c3 */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+    tmp1 = MULTIPLY(tmp1, FIX_2_053119869);        /*  c1+c3-c5+c7 */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+    tmp2 = MULTIPLY(tmp2, FIX_3_072711026);        /*  c1+c3+c5-c7 */
     tmp1 += z1 + z3;
     tmp2 += z1 + z2;
 
@@ -4254,6 +4282,7 @@ jpeg_idct_7x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -4341,6 +4370,7 @@ jpeg_idct_7x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 14 rows from work array, store into output array.
    * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 14; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -4437,6 +4467,7 @@ jpeg_idct_6x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -4520,6 +4551,7 @@ jpeg_idct_6x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 12 rows from work array, store into output array.
    * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 12; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -4601,6 +4633,7 @@ jpeg_idct_5x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -4676,6 +4709,7 @@ jpeg_idct_5x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 10 rows from work array, store into output array.
    * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 10; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -4750,9 +4784,11 @@ jpeg_idct_4x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   int workspace[4*8];	/* buffers data between passes */
   SHIFT_TEMPS
 
-  /* Pass 1: process columns from input, store into work array. */
+  /* Pass 1: process columns from input, store into work array.
-  /* Note results are scaled up by sqrt(8) compared to a true IDCT; */
+   * Note results are scaled up by sqrt(8) compared to a true IDCT;
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
+   * furthermore, we scale the results by 2**PASS1_BITS.
+   * 8-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   */
 
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
@@ -4789,15 +4825,16 @@ jpeg_idct_4x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
       continue;
     }
 
-    /* Even part: reverse the even part of the forward DCT. */
+    /* Even part: reverse the even part of the forward DCT.
-    /* The rotator is sqrt(2)*c(-6). */
+     * The rotator is c(-6).
+     */
 
     z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]);
     z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]);
 
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);       /* c6 */
-    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);
+    tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865);     /* c2-c6 */
-    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);
+    tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065);     /* c2+c6 */
 
     z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
     z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]);
@@ -4826,21 +4863,21 @@ jpeg_idct_4x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
     z2 = tmp0 + tmp2;
     z3 = tmp1 + tmp3;
 
-    z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */
+    z1 = MULTIPLY(z2 + z3, FIX_1_175875602);       /*  c3 */
-    z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+    z2 = MULTIPLY(z2, - FIX_1_961570560);          /* -c3-c5 */
-    z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+    z3 = MULTIPLY(z3, - FIX_0_390180644);          /* -c3+c5 */
     z2 += z1;
     z3 += z1;
 
-    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+    z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* -c3+c7 */
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+    tmp0 = MULTIPLY(tmp0, FIX_0_298631336);        /* -c1+c3+c5-c7 */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+    tmp3 = MULTIPLY(tmp3, FIX_1_501321110);        /*  c1+c3-c5-c7 */
     tmp0 += z1 + z2;
     tmp3 += z1 + z3;
 
-    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+    z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* -c1-c3 */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+    tmp1 = MULTIPLY(tmp1, FIX_2_053119869);        /*  c1+c3-c5+c7 */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+    tmp2 = MULTIPLY(tmp2, FIX_3_072711026);        /*  c1+c3+c5-c7 */
     tmp1 += z1 + z3;
     tmp2 += z1 + z2;
 
@@ -4861,8 +4898,10 @@ jpeg_idct_4x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   }
 
   /* Pass 2: process 8 rows from work array, store into output array.
-   * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16).
+   * 4-point IDCT kernel,
+   * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT].
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 8; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -4932,6 +4971,7 @@ jpeg_idct_3x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 1: process columns from input, store into work array.
    * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12).
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -4974,6 +5014,7 @@ jpeg_idct_3x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
   /* Pass 2: process 6 rows from work array, store into output array.
    * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6).
    */
+
   wsptr = workspace;
   for (ctr = 0; ctr < 6; ctr++) {
     outptr = output_buf[ctr] + output_col;
@@ -5037,6 +5078,7 @@ jpeg_idct_2x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    * 4-point IDCT kernel,
    * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT].
    */
+
   inptr = coef_block;
   quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
   wsptr = workspace;
@@ -5106,7 +5148,7 @@ jpeg_idct_1x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
 	       JCOEFPTR coef_block,
 	       JSAMPARRAY output_buf, JDIMENSION output_col)
 {
-  INT32 tmp0, tmp10;
+  INT32 tmp0, tmp1;
   ISLOW_MULT_TYPE * quantptr;
   JSAMPLE *range_limit = IDCT_range_limit(cinfo);
   SHIFT_TEMPS
@@ -5117,19 +5159,19 @@ jpeg_idct_1x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   /* Even part */
     
-  tmp10 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]);
+  tmp0 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]);
   /* Add fudge factor here for final descale. */
-  tmp10 += ONE << 2;
+  tmp0 += ONE << 2;
 
   /* Odd part */
 
-  tmp0 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]);
+  tmp1 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]);
 
   /* Final output stage */
 
-  output_buf[0][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3)
+  output_buf[0][output_col] = range_limit[(int) RIGHT_SHIFT(tmp0 + tmp1, 3)
 					  & RANGE_MASK];
-  output_buf[1][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3)
+  output_buf[1][output_col] = range_limit[(int) RIGHT_SHIFT(tmp0 - tmp1, 3)
 					  & RANGE_MASK];
 }
 

jmemmgr.c

@@ -2,6 +2,7 @@
  * jmemmgr.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
+ * Modified 2011-2012 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -213,7 +214,7 @@ print_mem_stats (j_common_ptr cinfo, int pool_id)
 #endif /* MEM_STATS */
 
 
-LOCAL(void)
+LOCAL(noreturn_t)
 out_of_memory (j_common_ptr cinfo, int which)
 /* Report an out-of-memory error and stop execution */
 /* If we compiled MEM_STATS support, report alloc requests before dying */
@@ -821,7 +822,7 @@ access_virt_sarray (j_common_ptr cinfo, jvirt_sarray_ptr ptr,
       undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */
       end_row -= ptr->cur_start_row;
       while (undef_row < end_row) {
-	jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
+	FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
 	undef_row++;
       }
     } else {
@@ -906,7 +907,7 @@ access_virt_barray (j_common_ptr cinfo, jvirt_barray_ptr ptr,
       undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */
       end_row -= ptr->cur_start_row;
       while (undef_row < end_row) {
-	jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
+	FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
 	undef_row++;
       }
     } else {

jmorecfg.h

@@ -2,7 +2,7 @@
  * jmorecfg.h
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 1997-2009 by Guido Vollbeding.
+ * Modified 1997-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -15,13 +15,22 @@
 /*
  * Define BITS_IN_JSAMPLE as either
  *   8   for 8-bit sample values (the usual setting)
+ *   9   for 9-bit sample values
+ *   10  for 10-bit sample values
+ *   11  for 11-bit sample values
  *   12  for 12-bit sample values
- * Only 8 and 12 are legal data precisions for lossy JPEG according to the
+ * Only 8, 9, 10, 11, and 12 bits sample data precision are supported for
- * JPEG standard, and the IJG code does not support anything else!
+ * full-feature DCT processing.  Further depths up to 16-bit may be added
- * We do not support run-time selection of data precision, sorry.
+ * later for the lossless modes of operation.
+ * Run-time selection and conversion of data precision will be added later
+ * and are currently not supported, sorry.
+ * Exception:  The transcoding part (jpegtran) supports all settings in a
+ * single instance, since it operates on the level of DCT coefficients and
+ * not sample values.  The DCT coefficients are of the same type (16 bits)
+ * in all cases (see below).
  */
 
-#define BITS_IN_JSAMPLE  8	/* use 8 or 12 */
+#define BITS_IN_JSAMPLE  8	/* use 8, 9, 10, 11, or 12 */
 
 
 /*
@@ -77,6 +86,48 @@ typedef char JSAMPLE;
 #endif /* BITS_IN_JSAMPLE == 8 */
 
 
+#if BITS_IN_JSAMPLE == 9
+/* JSAMPLE should be the smallest type that will hold the values 0..511.
+ * On nearly all machines "short" will do nicely.
+ */
+
+typedef short JSAMPLE;
+#define GETJSAMPLE(value)  ((int) (value))
+
+#define MAXJSAMPLE	511
+#define CENTERJSAMPLE	256
+
+#endif /* BITS_IN_JSAMPLE == 9 */
+
+
+#if BITS_IN_JSAMPLE == 10
+/* JSAMPLE should be the smallest type that will hold the values 0..1023.
+ * On nearly all machines "short" will do nicely.
+ */
+
+typedef short JSAMPLE;
+#define GETJSAMPLE(value)  ((int) (value))
+
+#define MAXJSAMPLE	1023
+#define CENTERJSAMPLE	512
+
+#endif /* BITS_IN_JSAMPLE == 10 */
+
+
+#if BITS_IN_JSAMPLE == 11
+/* JSAMPLE should be the smallest type that will hold the values 0..2047.
+ * On nearly all machines "short" will do nicely.
+ */
+
+typedef short JSAMPLE;
+#define GETJSAMPLE(value)  ((int) (value))
+
+#define MAXJSAMPLE	2047
+#define CENTERJSAMPLE	1024
+
+#endif /* BITS_IN_JSAMPLE == 11 */
+
+
 #if BITS_IN_JSAMPLE == 12
 /* JSAMPLE should be the smallest type that will hold the values 0..4095.
  * On nearly all machines "short" will do nicely.
@@ -160,11 +211,13 @@ typedef short INT16;
 
 #ifndef XMD_H			/* X11/xmd.h correctly defines INT32 */
 #ifndef _BASETSD_H_		/* Microsoft defines it in basetsd.h */
+#ifndef _BASETSD_H		/* MinGW is slightly different */
 #ifndef QGLOBAL_H		/* Qt defines it in qglobal.h */
 typedef long INT32;
 #endif
 #endif
 #endif
+#endif
 
 /* Datatype used for image dimensions.  The JPEG standard only supports
  * images up to 64K*64K due to 16-bit fields in SOF markers.  Therefore
@@ -208,6 +261,26 @@ typedef unsigned int JDIMENSION;
 #endif
 
 
+/* The noreturn type identifier is used to declare functions
+ * which cannot return.
+ * Compilers can thus create more optimized code and perform
+ * better checks for warnings and errors.
+ * Static analyzer tools can make improved inferences about
+ * execution paths and are prevented from giving false alerts.
+ *
+ * Unfortunately, the proposed specifications of corresponding
+ * extensions in the Dec 2011 ISO C standard revision (C11),
+ * GCC, MSVC, etc. are not viable.
+ * Thus we introduce a user defined type to declare noreturn
+ * functions at least for clarity.  A proper compiler would
+ * have a suitable noreturn type to match in place of void.
+ */
+
+#ifndef HAVE_NORETURN_T
+typedef void noreturn_t;
+#endif
+
+
 /* Here is the pseudo-keyword for declaring pointers that must be "far"
  * on 80x86 machines.  Most of the specialized coding for 80x86 is handled
  * by just saying "FAR *" where such a pointer is needed.  In a few places
@@ -231,14 +304,19 @@ typedef unsigned int JDIMENSION;
  */
 
 #ifndef HAVE_BOOLEAN
+#if defined FALSE || defined TRUE || defined QGLOBAL_H
+/* Qt3 defines FALSE and TRUE as "const" variables in qglobal.h */
 typedef int boolean;
-#endif
 #ifndef FALSE			/* in case these macros already exist */
 #define FALSE	0		/* values of boolean */
 #endif
 #ifndef TRUE
 #define TRUE	1
 #endif
+#else
+typedef enum { FALSE = 0, TRUE = 1 } boolean;
+#endif
+#endif
 
 
 /*
@@ -276,11 +354,12 @@ typedef int boolean;
 #define C_PROGRESSIVE_SUPPORTED	    /* Progressive JPEG? (Requires MULTISCAN)*/
 #define DCT_SCALING_SUPPORTED	    /* Input rescaling via DCT? (Requires DCT_ISLOW)*/
 #define ENTROPY_OPT_SUPPORTED	    /* Optimization of entropy coding parms? */
-/* Note: if you selected 12-bit data precision, it is dangerous to turn off
+/* Note: if you selected more than 8-bit data precision, it is dangerous to
- * ENTROPY_OPT_SUPPORTED.  The standard Huffman tables are only good for 8-bit
+ * turn off ENTROPY_OPT_SUPPORTED.  The standard Huffman tables are only
- * precision, so jchuff.c normally uses entropy optimization to compute
+ * good for 8-bit precision, so arithmetic coding is recommended for higher
- * usable tables for higher precision.  If you don't want to do optimization,
+ * precision.  The Huffman encoder normally uses entropy optimization to
- * you'll have to supply different default Huffman tables.
+ * compute usable tables for higher precision.  Otherwise, you'll have to
+ * supply different default Huffman tables.
  * The exact same statements apply for progressive JPEG: the default tables
  * don't work for progressive mode.  (This may get fixed, however.)
  */
@@ -291,7 +370,7 @@ typedef int boolean;
 #define D_ARITH_CODING_SUPPORTED    /* Arithmetic coding back end? */
 #define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
 #define D_PROGRESSIVE_SUPPORTED	    /* Progressive JPEG? (Requires MULTISCAN)*/
-#define IDCT_SCALING_SUPPORTED	    /* Output rescaling via IDCT? */
+#define IDCT_SCALING_SUPPORTED	    /* Output rescaling via IDCT? (Requires DCT_ISLOW)*/
 #define SAVE_MARKERS_SUPPORTED	    /* jpeg_save_markers() needed? */
 #define BLOCK_SMOOTHING_SUPPORTED   /* Block smoothing? (Progressive only) */
 #undef  UPSAMPLE_SCALING_SUPPORTED  /* Output rescaling at upsample stage? */
@@ -310,9 +389,7 @@ typedef int boolean;
  * the offsets will also change the order in which colormap data is organized.
  * RESTRICTIONS:
  * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
- * 2. These macros only affect RGB<=>YCbCr color conversion, so they are not
+ * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
- *    useful if you are using JPEG color spaces other than YCbCr or grayscale.
- * 3. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
  *    is not 3 (they don't understand about dummy color components!).  So you
  *    can't use color quantization if you change that value.
  */

jpegint.h

@@ -2,7 +2,7 @@
  * jpegint.h
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 1997-2009 by Guido Vollbeding.
+ * Modified 1997-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -211,12 +211,8 @@ struct jpeg_marker_reader {
 /* Entropy decoding */
 struct jpeg_entropy_decoder {
   JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
-  JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo,
+  JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo, JBLOCKROW *MCU_data));
-				JBLOCKROW *MCU_data));
+  JMETHOD(void, finish_pass, (j_decompress_ptr cinfo));
-
-  /* This is here to share code between baseline and progressive decoders; */
-  /* other modules probably should not use it */
-  boolean insufficient_data;	/* set TRUE after emitting warning */
 };
 
 /* Inverse DCT (also performs dequantization) */
@@ -325,14 +321,41 @@ struct jpeg_color_quantizer {
 #define jinit_memory_mgr	jIMemMgr
 #define jdiv_round_up		jDivRound
 #define jround_up		jRound
+#define jzero_far		jZeroFar
 #define jcopy_sample_rows	jCopySamples
 #define jcopy_block_row		jCopyBlocks
-#define jzero_far		jZeroFar
 #define jpeg_zigzag_order	jZIGTable
 #define jpeg_natural_order	jZAGTable
+#define jpeg_natural_order7	jZAG7Table
+#define jpeg_natural_order6	jZAG6Table
+#define jpeg_natural_order5	jZAG5Table
+#define jpeg_natural_order4	jZAG4Table
+#define jpeg_natural_order3	jZAG3Table
+#define jpeg_natural_order2	jZAG2Table
+#define jpeg_aritab		jAriTab
 #endif /* NEED_SHORT_EXTERNAL_NAMES */
 
 
+/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays
+ * and coefficient-block arrays.  This won't work on 80x86 because the arrays
+ * are FAR and we're assuming a small-pointer memory model.  However, some
+ * DOS compilers provide far-pointer versions of memcpy() and memset() even
+ * in the small-model libraries.  These will be used if USE_FMEM is defined.
+ * Otherwise, the routines in jutils.c do it the hard way.
+ */
+
+#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macro */
+#define FMEMZERO(target,size)	MEMZERO(target,size)
+#else				/* 80x86 case */
+#ifdef USE_FMEM
+#define FMEMZERO(target,size)	_fmemset((void FAR *)(target), 0, (size_t)(size))
+#else
+EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
+#define FMEMZERO(target,size)	jzero_far(target, size)
+#endif
+#endif
+
+
 /* Compression module initialization routines */
 EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo));
 EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo,
@@ -378,12 +401,20 @@ EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row,
 				    int num_rows, JDIMENSION num_cols));
 EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row,
 				  JDIMENSION num_blocks));
-EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
 /* Constant tables in jutils.c */
 #if 0				/* This table is not actually needed in v6a */
 extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */
 #endif
 extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */
+extern const int jpeg_natural_order7[]; /* zz to natural order for 7x7 block */
+extern const int jpeg_natural_order6[]; /* zz to natural order for 6x6 block */
+extern const int jpeg_natural_order5[]; /* zz to natural order for 5x5 block */
+extern const int jpeg_natural_order4[]; /* zz to natural order for 4x4 block */
+extern const int jpeg_natural_order3[]; /* zz to natural order for 3x3 block */
+extern const int jpeg_natural_order2[]; /* zz to natural order for 2x2 block */
+
+/* Arithmetic coding probability estimation tables in jaricom.c */
+extern const INT32 jpeg_aritab[];
 
 /* Suppress undefined-structure complaints if necessary. */
 

jpeglib.h

@@ -2,7 +2,7 @@
  * jpeglib.h
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
- * Modified 2002-2009 by Guido Vollbeding.
+ * Modified 2002-2013 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -33,19 +33,21 @@ extern "C" {
 #endif
 #endif
 
-/* Version ID for the JPEG library.
+/* Version IDs for the JPEG library.
- * Might be useful for tests like "#if JPEG_LIB_VERSION >= 70".
+ * Might be useful for tests like "#if JPEG_LIB_VERSION >= 90".
  */
 
-#define JPEG_LIB_VERSION  70	/* Version 7.0 */
+#define JPEG_LIB_VERSION        90	/* Compatibility version 9.0 */
+#define JPEG_LIB_VERSION_MAJOR  9
+#define JPEG_LIB_VERSION_MINOR  1
 
 
 /* Various constants determining the sizes of things.
- * All of these are specified by the JPEG standard, so don't change them
+ * All of these are specified by the JPEG standard,
- * if you want to be compatible.
+ * so don't change them if you want to be compatible.
  */
 
-#define DCTSIZE		    8	/* The basic DCT block is 8x8 samples */
+#define DCTSIZE		    8	/* The basic DCT block is 8x8 coefficients */
 #define DCTSIZE2	    64	/* DCTSIZE squared; # of elements in a block */
 #define NUM_QUANT_TBLS      4	/* Quantization tables are numbered 0..3 */
 #define NUM_HUFF_TBLS       4	/* Huffman tables are numbered 0..3 */
@@ -155,23 +157,28 @@ typedef struct {
   /* The downsampled dimensions are the component's actual, unpadded number
    * of samples at the main buffer (preprocessing/compression interface);
    * DCT scaling is included, so
-   * downsampled_width = ceil(image_width * Hi/Hmax * DCT_h_scaled_size/DCTSIZE)
+   * downsampled_width =
+   *   ceil(image_width * Hi/Hmax * DCT_h_scaled_size/block_size)
    * and similarly for height.
    */
   JDIMENSION downsampled_width;	 /* actual width in samples */
   JDIMENSION downsampled_height; /* actual height in samples */
-  /* This flag is used only for decompression.  In cases where some of the
+  /* For decompression, in cases where some of the components will be
-   * components will be ignored (eg grayscale output from YCbCr image),
+   * ignored (eg grayscale output from YCbCr image), we can skip most
-   * we can skip most computations for the unused components.
+   * computations for the unused components.
+   * For compression, some of the components will need further quantization
+   * scale by factor of 2 after DCT (eg BG_YCC output from normal RGB input).
+   * The field is first set TRUE for decompression, FALSE for compression
+   * in initial_setup, and then adapted in color conversion setup.
    */
-  boolean component_needed;	/* do we need the value of this component? */
+  boolean component_needed;
 
   /* These values are computed before starting a scan of the component. */
   /* The decompressor output side may not use these variables. */
   int MCU_width;		/* number of blocks per MCU, horizontally */
   int MCU_height;		/* number of blocks per MCU, vertically */
   int MCU_blocks;		/* MCU_width * MCU_height */
-  int MCU_sample_width;		/* MCU width in samples, MCU_width*DCT_scaled_size */
+  int MCU_sample_width;	/* MCU width in samples: MCU_width * DCT_h_scaled_size */
   int last_col_width;		/* # of non-dummy blocks across in last MCU */
   int last_row_height;		/* # of non-dummy blocks down in last MCU */
 
@@ -213,12 +220,21 @@ struct jpeg_marker_struct {
 typedef enum {
 	JCS_UNKNOWN,		/* error/unspecified */
 	JCS_GRAYSCALE,		/* monochrome */
-	JCS_RGB,		/* red/green/blue */
+	JCS_RGB,		/* red/green/blue, standard RGB (sRGB) */
-	JCS_YCbCr,		/* Y/Cb/Cr (also known as YUV) */
+	JCS_YCbCr,		/* Y/Cb/Cr (also known as YUV), standard YCC */
 	JCS_CMYK,		/* C/M/Y/K */
-	JCS_YCCK		/* Y/Cb/Cr/K */
+	JCS_YCCK,		/* Y/Cb/Cr/K */
+	JCS_BG_RGB,		/* big gamut red/green/blue, bg-sRGB */
+	JCS_BG_YCC		/* big gamut Y/Cb/Cr, bg-sYCC */
 } J_COLOR_SPACE;
 
+/* Supported color transforms. */
+
+typedef enum {
+	JCT_NONE           = 0,
+	JCT_SUBTRACT_GREEN = 1
+} J_COLOR_TRANSFORM;
+
 /* DCT/IDCT algorithm options. */
 
 typedef enum {
@@ -368,6 +384,9 @@ struct jpeg_compress_struct {
   UINT16 Y_density;		/* Vertical pixel density */
   boolean write_Adobe_marker;	/* should an Adobe marker be written? */
 
+  J_COLOR_TRANSFORM color_transform;
+  /* Color transform identifier, writes LSE marker if nonzero */
+
   /* State variable: index of next scanline to be written to
    * jpeg_write_scanlines().  Application may use this to control its
    * processing loop, e.g., "while (next_scanline < image_height)".
@@ -414,6 +433,10 @@ struct jpeg_compress_struct {
 
   int Ss, Se, Ah, Al;		/* progressive JPEG parameters for scan */
 
+  int block_size;		/* the basic DCT block size: 1..16 */
+  const int * natural_order;	/* natural-order position array */
+  int lim_Se;			/* min( Se, DCTSIZE2-1 ) */
+
   /*
    * Links to compression subobjects (methods and private variables of modules)
    */
@@ -560,6 +583,7 @@ struct jpeg_decompress_struct {
   jpeg_component_info * comp_info;
   /* comp_info[i] describes component that appears i'th in SOF */
 
+  boolean is_baseline;		/* TRUE if Baseline SOF0 encountered */
   boolean progressive_mode;	/* TRUE if SOFn specifies progressive mode */
   boolean arith_code;		/* TRUE=arithmetic coding, FALSE=Huffman */
 
@@ -582,6 +606,9 @@ struct jpeg_decompress_struct {
   boolean saw_Adobe_marker;	/* TRUE iff an Adobe APP14 marker was found */
   UINT8 Adobe_transform;	/* Color transform code from Adobe marker */
 
+  J_COLOR_TRANSFORM color_transform;
+  /* Color transform identifier derived from LSE marker, otherwise zero */
+
   boolean CCIR601_sampling;	/* TRUE=first samples are cosited */
 
   /* Aside from the specific data retained from APPn markers known to the
@@ -633,6 +660,12 @@ struct jpeg_decompress_struct {
 
   int Ss, Se, Ah, Al;		/* progressive JPEG parameters for scan */
 
+  /* These fields are derived from Se of first SOS marker.
+   */
+  int block_size;		/* the basic DCT block size: 1..16 */
+  const int * natural_order; /* natural-order position array for entropy decode */
+  int lim_Se;			/* min( Se, DCTSIZE2-1 ) for entropy decode */
+
   /* This field is shared between entropy decoder and marker parser.
    * It is either zero or the code of a JPEG marker that has been
    * read from the data source, but has not yet been processed.
@@ -668,7 +701,7 @@ struct jpeg_decompress_struct {
 
 struct jpeg_error_mgr {
   /* Error exit handler: does not return to caller */
-  JMETHOD(void, error_exit, (j_common_ptr cinfo));
+  JMETHOD(noreturn_t, error_exit, (j_common_ptr cinfo));
   /* Conditionally emit a trace or warning message */
   JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level));
   /* Routine that actually outputs a trace or error message */
@@ -862,6 +895,8 @@ typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo));
 #define jpeg_destroy_decompress	jDestDecompress
 #define jpeg_stdio_dest		jStdDest
 #define jpeg_stdio_src		jStdSrc
+#define jpeg_mem_dest		jMemDest
+#define jpeg_mem_src		jMemSrc
 #define jpeg_set_defaults	jSetDefaults
 #define jpeg_set_colorspace	jSetColorspace
 #define jpeg_default_colorspace	jDefColorspace
@@ -894,6 +929,7 @@ typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo));
 #define jpeg_input_complete	jInComplete
 #define jpeg_new_colormap	jNewCMap
 #define jpeg_consume_input	jConsumeInput
+#define jpeg_core_output_dimensions	jCoreDimensions
 #define jpeg_calc_output_dimensions	jCalcDimensions
 #define jpeg_save_markers	jSaveMarkers
 #define jpeg_set_marker_processor	jSetMarker
@@ -938,6 +974,14 @@ EXTERN(void) jpeg_destroy_decompress JPP((j_decompress_ptr cinfo));
 EXTERN(void) jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile));
 EXTERN(void) jpeg_stdio_src JPP((j_decompress_ptr cinfo, FILE * infile));
 
+/* Data source and destination managers: memory buffers. */
+EXTERN(void) jpeg_mem_dest JPP((j_compress_ptr cinfo,
+			       unsigned char ** outbuffer,
+			       unsigned long * outsize));
+EXTERN(void) jpeg_mem_src JPP((j_decompress_ptr cinfo,
+			      unsigned char * inbuffer,
+			      unsigned long insize));
+
 /* Default parameter setup for compression */
 EXTERN(void) jpeg_set_defaults JPP((j_compress_ptr cinfo));
 /* Compression parameter setup aids */
@@ -1032,6 +1076,7 @@ EXTERN(int) jpeg_consume_input JPP((j_decompress_ptr cinfo));
 #define JPEG_SCAN_COMPLETED	4 /* Completed last iMCU row of a scan */
 
 /* Precalculate output dimensions for current decompression parameters. */
+EXTERN(void) jpeg_core_output_dimensions JPP((j_decompress_ptr cinfo));
 EXTERN(void) jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo));
 
 /* Control saving of COM and APPn markers into marker_list. */

jpegtran.1

@@ -1,4 +1,4 @@
-.TH JPEGTRAN 1 "28 March 2009"
+.TH JPEGTRAN 1 "13 September 2013"
 .SH NAME
 jpegtran \- lossless transformation of JPEG files
 .SH SYNOPSIS
@@ -156,16 +156,24 @@ image region but losslessly preserves what is inside.  Like the rotate and
 flip transforms, lossless crop is restricted by the current JPEG format: the
 upper left corner of the selected region must fall on an iMCU boundary.  If
 this does not hold for the given crop parameters, we silently move the upper
-left corner up and/or left to make it so, simultaneously increasing the region
+left corner up and/or left to make it so, simultaneously increasing the
-dimensions to keep the lower right crop corner unchanged.  (Thus, the output
+region dimensions to keep the lower right crop corner unchanged.  (Thus, the
-image covers at least the requested region, but may cover more.)
+output image covers at least the requested region, but may cover more.)
+The adjustment of the region dimensions may be optionally disabled.
 
 The image can be losslessly cropped by giving the switch:
 .TP
 .B \-crop WxH+X+Y
 Crop to a rectangular subarea of width W, height H starting at point X,Y.
 .PP
-Another not-strictly-lossless transformation switch is:
+A complementary lossless-wipe option is provided to discard (gray out) data
+inside a given image region while losslessly preserving what is outside:
+.TP
+.B \-wipe WxH+X+Y
+Wipe (gray out) a rectangular subarea of width W, height H starting at point
+X,Y.
+.PP
+Other not-strictly-lossless transformation switches are:
 .TP
 .B \-grayscale
 Force grayscale output.
@@ -178,6 +186,19 @@ is particularly handy for fixing a monochrome picture that was mistakenly
 encoded as a color JPEG.  (In such a case, the space savings from getting rid
 of the near-empty chroma channels won't be large; but the decoding time for
 a grayscale JPEG is substantially less than that for a color JPEG.)
+.TP
+.BI \-scale " M/N"
+Scale the output image by a factor M/N.
+.IP
+Currently supported scale factors are M/N with all M from 1 to 16, where N is
+the source DCT size, which is 8 for baseline JPEG.  If the /N part is omitted,
+then M specifies the DCT scaled size to be applied on the given input.  For
+baseline JPEG this is equivalent to M/8 scaling, since the source DCT size
+for baseline JPEG is 8.
+.B Caution:
+An implementation of the JPEG SmartScale extension is required for this
+feature.  SmartScale enabled JPEG is not yet widely implemented, so many
+decoders will be unable to view a SmartScale extended JPEG file at all.
 .PP
 .B jpegtran
 also recognizes these switches that control what to do with "extra" markers,

jpegtran.c

@@ -1,14 +1,14 @@
 /*
  * jpegtran.c
  *
- * Copyright (C) 1995-2001, Thomas G. Lane.
+ * Copyright (C) 1995-2013, Thomas G. Lane, Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains a command-line user interface for JPEG transcoding.
- * It is very similar to cjpeg.c, but provides lossless transcoding between
+ * It is very similar to cjpeg.c, and partly to djpeg.c, but provides
- * different JPEG file formats.  It also provides some lossless and sort-of-
+ * lossless transcoding between different JPEG file formats.  It also
- * lossless transformations of JPEG data.
+ * provides some lossless and sort-of-lossless transformations of JPEG data.
  */
 
 #include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
@@ -37,6 +37,7 @@
 
 static const char * progname;	/* program name for error messages */
 static char * outfilename;	/* for -outfile switch */
+static char * scaleoption;	/* -scale switch */
 static JCOPY_OPTION copyoption;	/* -copy switch */
 static jpeg_transform_info transformoption; /* image transformation options */
 
@@ -62,26 +63,30 @@ usage (void)
 #ifdef C_PROGRESSIVE_SUPPORTED
   fprintf(stderr, "  -progressive   Create progressive JPEG file\n");
 #endif
-#if TRANSFORMS_SUPPORTED
   fprintf(stderr, "Switches for modifying the image:\n");
+#if TRANSFORMS_SUPPORTED
   fprintf(stderr, "  -crop WxH+X+Y  Crop to a rectangular subarea\n");
-  fprintf(stderr, "  -grayscale     Reduce to grayscale (omit color data)\n");
   fprintf(stderr, "  -flip [horizontal|vertical]  Mirror image (left-right or top-bottom)\n");
+  fprintf(stderr, "  -grayscale     Reduce to grayscale (omit color data)\n");
   fprintf(stderr, "  -perfect       Fail if there is non-transformable edge blocks\n");
   fprintf(stderr, "  -rotate [90|180|270]         Rotate image (degrees clockwise)\n");
+#endif
+  fprintf(stderr, "  -scale M/N     Scale output image by fraction M/N, eg, 1/8\n");
+#if TRANSFORMS_SUPPORTED
   fprintf(stderr, "  -transpose     Transpose image\n");
   fprintf(stderr, "  -transverse    Transverse transpose image\n");
   fprintf(stderr, "  -trim          Drop non-transformable edge blocks\n");
-#endif /* TRANSFORMS_SUPPORTED */
+  fprintf(stderr, "  -wipe WxH+X+Y  Wipe (gray out) a rectangular subarea\n");
+#endif
   fprintf(stderr, "Switches for advanced users:\n");
+#ifdef C_ARITH_CODING_SUPPORTED
+  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
+#endif
   fprintf(stderr, "  -restart N     Set restart interval in rows, or in blocks with B\n");
   fprintf(stderr, "  -maxmemory N   Maximum memory to use (in kbytes)\n");
   fprintf(stderr, "  -outfile name  Specify name for output file\n");
   fprintf(stderr, "  -verbose  or  -debug   Emit debug output\n");
   fprintf(stderr, "Switches for wizards:\n");
-#ifdef C_ARITH_CODING_SUPPORTED
-  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
-#endif
 #ifdef C_MULTISCAN_FILES_SUPPORTED
   fprintf(stderr, "  -scans file    Create multi-scan JPEG per script file\n");
 #endif
@@ -132,10 +137,11 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
   /* Set up default JPEG parameters. */
   simple_progressive = FALSE;
   outfilename = NULL;
+  scaleoption = NULL;
   copyoption = JCOPYOPT_DEFAULT;
   transformoption.transform = JXFORM_NONE;
-  transformoption.trim = FALSE;
   transformoption.perfect = FALSE;
+  transformoption.trim = FALSE;
   transformoption.force_grayscale = FALSE;
   transformoption.crop = FALSE;
   cinfo->err->trace_level = 0;
@@ -182,7 +188,8 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
 #if TRANSFORMS_SUPPORTED
       if (++argn >= argc)	/* advance to next argument */
 	usage();
-      if (! jtransform_parse_crop_spec(&transformoption, argv[argn])) {
+      if (transformoption.crop /* reject multiple crop/wipe requests */ ||
+	  ! jtransform_parse_crop_spec(&transformoption, argv[argn])) {
 	fprintf(stderr, "%s: bogus -crop argument '%s'\n",
 		progname, argv[argn]);
 	exit(EXIT_FAILURE);
@@ -299,6 +306,13 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       else
 	usage();
 
+    } else if (keymatch(arg, "scale", 4)) {
+      /* Scale the output image by a fraction M/N. */
+      if (++argn >= argc)	/* advance to next argument */
+	usage();
+      scaleoption = argv[argn];
+      /* We must postpone processing until decompression startup. */
+
     } else if (keymatch(arg, "scans", 1)) {
       /* Set scan script. */
 #ifdef C_MULTISCAN_FILES_SUPPORTED
@@ -324,6 +338,21 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       /* Trim off any partial edge MCUs that the transform can't handle. */
       transformoption.trim = TRUE;
 
+    } else if (keymatch(arg, "wipe", 1)) {
+#if TRANSFORMS_SUPPORTED
+      if (++argn >= argc)	/* advance to next argument */
+	usage();
+      if (transformoption.crop /* reject multiple crop/wipe requests */ ||
+	  ! jtransform_parse_crop_spec(&transformoption, argv[argn])) {
+	fprintf(stderr, "%s: bogus -wipe argument '%s'\n",
+		progname, argv[argn]);
+	exit(EXIT_FAILURE);
+      }
+      select_transform(JXFORM_WIPE);
+#else
+      select_transform(JXFORM_NONE);	/* force an error */
+#endif
+
     } else {
       usage();			/* bogus switch */
     }
@@ -453,20 +482,22 @@ main (int argc, char **argv)
   /* Read file header */
   (void) jpeg_read_header(&srcinfo, TRUE);
 
+  /* Adjust default decompression parameters */
+  if (scaleoption != NULL)
+    if (sscanf(scaleoption, "%u/%u",
+	&srcinfo.scale_num, &srcinfo.scale_denom) < 1)
+      usage();
+
   /* Any space needed by a transform option must be requested before
    * jpeg_read_coefficients so that memory allocation will be done right.
    */
 #if TRANSFORMS_SUPPORTED
-  /* Fails right away if -perfect is given and transformation is not perfect.
+  /* Fail right away if -perfect is given and transformation is not perfect.
    */
-  if (transformoption.perfect &&
+  if (!jtransform_request_workspace(&srcinfo, &transformoption)) {
-      !jtransform_perfect_transform(srcinfo.image_width, srcinfo.image_height,
-      srcinfo.max_h_samp_factor * DCTSIZE, srcinfo.max_v_samp_factor * DCTSIZE,
-      transformoption.transform)) {
     fprintf(stderr, "%s: transformation is not perfect\n", progname);
     exit(EXIT_FAILURE);
   }
-  jtransform_request_workspace(&srcinfo, &transformoption);
 #endif
 
   /* Read source file as DCT coefficients */

jquant1.c

@@ -2,6 +2,7 @@
  * jquant1.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
+ * Modified 2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -530,7 +531,7 @@ quantize_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
 
   for (row = 0; row < num_rows; row++) {
     /* Initialize output values to 0 so can process components separately */
-    jzero_far((void FAR *) output_buf[row],
+    FMEMZERO((void FAR *) output_buf[row],
 	     (size_t) (width * SIZEOF(JSAMPLE)));
     row_index = cquantize->row_index;
     for (ci = 0; ci < nc; ci++) {
@@ -635,7 +636,7 @@ quantize_fs_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
 
   for (row = 0; row < num_rows; row++) {
     /* Initialize output values to 0 so can process components separately */
-    jzero_far((void FAR *) output_buf[row],
+    FMEMZERO((void FAR *) output_buf[row],
 	     (size_t) (width * SIZEOF(JSAMPLE)));
     for (ci = 0; ci < nc; ci++) {
       input_ptr = input_buf[row] + ci;
@@ -781,7 +782,7 @@ start_pass_1_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
     /* Initialize the propagated errors to zero. */
     arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR));
     for (i = 0; i < cinfo->out_color_components; i++)
-      jzero_far((void FAR *) cquantize->fserrors[i], arraysize);
+      FMEMZERO((void FAR *) cquantize->fserrors[i], arraysize);
     break;
   default:
     ERREXIT(cinfo, JERR_NOT_COMPILED);

jquant2.c

@@ -2,6 +2,7 @@
  * jquant2.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
+ * Modified 2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -1203,7 +1204,7 @@ start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
 	cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large)
 	  ((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize);
       /* Initialize the propagated errors to zero. */
-      jzero_far((void FAR *) cquantize->fserrors, arraysize);
+      FMEMZERO((void FAR *) cquantize->fserrors, arraysize);
       /* Make the error-limit table if we didn't already. */
       if (cquantize->error_limiter == NULL)
 	init_error_limit(cinfo);
@@ -1214,7 +1215,7 @@ start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
   /* Zero the histogram or inverse color map, if necessary */
   if (cquantize->needs_zeroed) {
     for (i = 0; i < HIST_C0_ELEMS; i++) {
-      jzero_far((void FAR *) histogram[i],
+      FMEMZERO((void FAR *) histogram[i],
 	       HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell));
     }
     cquantize->needs_zeroed = FALSE;

jutils.c

@@ -2,6 +2,7 @@
  * jutils.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
+ * Modified 2009-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -63,6 +64,57 @@ const int jpeg_natural_order[DCTSIZE2+16] = {
  63, 63, 63, 63, 63, 63, 63, 63
 };
 
+const int jpeg_natural_order7[7*7+16] = {
+  0,  1,  8, 16,  9,  2,  3, 10,
+ 17, 24, 32, 25, 18, 11,  4,  5,
+ 12, 19, 26, 33, 40, 48, 41, 34,
+ 27, 20, 13,  6, 14, 21, 28, 35,
+ 42, 49, 50, 43, 36, 29, 22, 30,
+ 37, 44, 51, 52, 45, 38, 46, 53,
+ 54,
+ 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */
+ 63, 63, 63, 63, 63, 63, 63, 63
+};
+
+const int jpeg_natural_order6[6*6+16] = {
+  0,  1,  8, 16,  9,  2,  3, 10,
+ 17, 24, 32, 25, 18, 11,  4,  5,
+ 12, 19, 26, 33, 40, 41, 34, 27,
+ 20, 13, 21, 28, 35, 42, 43, 36,
+ 29, 37, 44, 45,
+ 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */
+ 63, 63, 63, 63, 63, 63, 63, 63
+};
+
+const int jpeg_natural_order5[5*5+16] = {
+  0,  1,  8, 16,  9,  2,  3, 10,
+ 17, 24, 32, 25, 18, 11,  4, 12,
+ 19, 26, 33, 34, 27, 20, 28, 35,
+ 36,
+ 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */
+ 63, 63, 63, 63, 63, 63, 63, 63
+};
+
+const int jpeg_natural_order4[4*4+16] = {
+  0,  1,  8, 16,  9,  2,  3, 10,
+ 17, 24, 25, 18, 11, 19, 26, 27,
+ 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */
+ 63, 63, 63, 63, 63, 63, 63, 63
+};
+
+const int jpeg_natural_order3[3*3+16] = {
+  0,  1,  8, 16,  9,  2, 10, 17,
+ 18,
+ 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */
+ 63, 63, 63, 63, 63, 63, 63, 63
+};
+
+const int jpeg_natural_order2[2*2+16] = {
+  0,  1,  8,  9,
+ 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */
+ 63, 63, 63, 63, 63, 63, 63, 63
+};
+
 
 /*
  * Arithmetic utilities
@@ -96,13 +148,27 @@ jround_up (long a, long b)
  * is not all that great, because these routines aren't very heavily used.)
  */
 
-#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macros */
+#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macro */
 #define FMEMCOPY(dest,src,size)	MEMCOPY(dest,src,size)
-#define FMEMZERO(target,size)	MEMZERO(target,size)
 #else				/* 80x86 case, define if we can */
 #ifdef USE_FMEM
 #define FMEMCOPY(dest,src,size)	_fmemcpy((void FAR *)(dest), (const void FAR *)(src), (size_t)(size))
-#define FMEMZERO(target,size)	_fmemset((void FAR *)(target), 0, (size_t)(size))
+#else
+/* This function is for use by the FMEMZERO macro defined in jpegint.h.
+ * Do not call this function directly, use the FMEMZERO macro instead.
+ */
+GLOBAL(void)
+jzero_far (void FAR * target, size_t bytestozero)
+/* Zero out a chunk of FAR memory. */
+/* This might be sample-array data, block-array data, or alloc_large data. */
+{
+  register char FAR * ptr = (char FAR *) target;
+  register size_t count;
+
+  for (count = bytestozero; count > 0; count--) {
+    *ptr++ = 0;
+  }
+}
 #endif
 #endif
 
@@ -159,21 +225,3 @@ jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row,
   }
 #endif
 }
-
-
-GLOBAL(void)
-jzero_far (void FAR * target, size_t bytestozero)
-/* Zero out a chunk of FAR memory. */
-/* This might be sample-array data, block-array data, or alloc_large data. */
-{
-#ifdef FMEMZERO
-  FMEMZERO(target, bytestozero);
-#else
-  register char FAR * ptr = (char FAR *) target;
-  register size_t count;
-
-  for (count = bytestozero; count > 0; count--) {
-    *ptr++ = 0;
-  }
-#endif
-}

jversion.h

@@ -1,7 +1,7 @@
 /*
  * jversion.h
  *
- * Copyright (C) 1991-2009, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1991-2014, Thomas G. Lane, Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -9,6 +9,6 @@
  */
 
 
-#define JVERSION	"7  27-Jun-2009"
+#define JVERSION	"9a  19-Jan-2014"
 
-#define JCOPYRIGHT	"Copyright (C) 2009, Thomas G. Lane, Guido Vollbeding"
+#define JCOPYRIGHT	"Copyright (C) 2014, Thomas G. Lane, Guido Vollbeding"

libjpeg.map

@@ -1,4 +1,4 @@
-LIBJPEG_7.0 {
+LIBJPEG_9.0 {
   global:
     *;
 };

libjpeg.txt

@@ -1,6 +1,6 @@
 USING THE IJG JPEG LIBRARY
 
-Copyright (C) 1994-2009, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1994-2013, Thomas G. Lane, Guido Vollbeding.
 This file is part of the Independent JPEG Group's software.
 For conditions of distribution and use, see the accompanying README file.
 
@@ -95,8 +95,8 @@ use.)  Unsupported ISO options include:
 	* Lossless JPEG
 	* DNL marker
 	* Nonintegral subsampling ratios
-We support both 8- and 12-bit data precision, but this is a compile-time
+We support 8-bit to 12-bit data precision, but this is a compile-time choice
-choice rather than a run-time choice; hence it is difficult to use both
+rather than a run-time choice; hence it is difficult to use different
 precisions in a single application.
 
 By itself, the library handles only interchange JPEG datastreams --- in
@@ -225,7 +225,7 @@ For best results, source data values should have the precision specified by
 BITS_IN_JSAMPLE (normally 8 bits).  For instance, if you choose to compress
 data that's only 6 bits/channel, you should left-justify each value in a
 byte before passing it to the compressor.  If you need to compress data
-that has more than 8 bits/channel, compile with BITS_IN_JSAMPLE = 12.
+that has more than 8 bits/channel, compile with BITS_IN_JSAMPLE = 9 to 12.
 (See "Library compile-time options", later.)
 
 
@@ -876,6 +876,22 @@ jpeg_simple_progression (j_compress_ptr cinfo)
 
 Compression parameters (cinfo fields) include:
 
+boolean arith_code
+	If TRUE, use arithmetic coding.
+	If FALSE, use Huffman coding.
+
+int block_size
+	Set DCT block size.  All N from 1 to 16 are possible.
+	Default is 8 (baseline format).
+	Larger values produce higher compression,
+	smaller values produce higher quality.
+	An exact DCT stage is possible with 1 or 2.
+	With the default quality of 75 and default Luminance qtable
+	the DCT+Quantization stage is lossless for value 1.
+	Note that values other than 8 require a SmartScale capable decoder,
+	introduced with IJG JPEG 8.  Setting the block_size parameter for
+	compression works with version 8c and later.
+
 J_DCT_METHOD dct_method
 	Selects the algorithm used for the DCT step.  Choices are:
 		JDCT_ISLOW: slow but accurate integer algorithm
@@ -895,14 +911,25 @@ J_DCT_METHOD dct_method
 unsigned int scale_num, scale_denom
 	Scale the image by the fraction scale_num/scale_denom.  Default is
 	1/1, or no scaling.  Currently, the supported scaling ratios are
-	8/N with all N from 1 to 16.  (The library design allows for arbitrary
+	M/N with all N from 1 to 16, where M is the destination DCT size,
-	scaling ratios but this is not likely to be implemented any time soon.)
+	which is 8 by default (see block_size parameter above).
+	(The library design allows for arbitrary scaling ratios but this
+	is not likely to be implemented any time soon.)
 
 J_COLOR_SPACE jpeg_color_space
 int num_components
 	The JPEG color space and corresponding number of components; see
 	"Special color spaces", below, for more info.  We recommend using
-	jpeg_set_color_space() if you want to change these.
+	jpeg_set_colorspace() if you want to change these.
+
+J_COLOR_TRANSFORM color_transform
+	Internal color transform identifier, writes LSE marker if nonzero
+	(requires decoder with inverse color transform support, introduced
+	with IJG JPEG 9).
+	Two values are currently possible: JCT_NONE and JCT_SUBTRACT_GREEN.
+	Set this value for lossless RGB application *before* calling
+	jpeg_set_colorspace(), because entropy table assignment in
+	jpeg_set_colorspace() depends on color_transform.
 
 boolean optimize_coding
 	TRUE causes the compressor to compute optimal Huffman coding tables
@@ -1123,16 +1150,17 @@ J_COLOR_SPACE out_color_space
 
 unsigned int scale_num, scale_denom
 	Scale the image by the fraction scale_num/scale_denom.  Currently,
-	the supported scaling ratios are N/8 with all N from 1 to 16.  (The
+	the supported scaling ratios are M/N with all M from 1 to 16, where
-	library design allows for arbitrary scaling ratios but this is not
+	N is the source DCT size, which is 8 for baseline JPEG.  (The library
-	likely to be implemented any time soon.)  The values are initialized
+	design allows for arbitrary scaling ratios but this is not likely
-	by jpeg_read_header() with the source DCT size, which is currently
+	to be implemented any time soon.)  The values are initialized by
-	8/8.  If you change only the scale_num value while leaving the other
+	jpeg_read_header() with the source DCT size.  For baseline JPEG
-	unchanged, then this specifies the DCT scaled size to be applied on
+	this is 8/8.  If you change only the scale_num value while leaving
-	the given input, which is currently equivalent to N/8 scaling, since
+	the other unchanged, then this specifies the DCT scaled size to be
-	the source DCT size is currently always 8.  Smaller scaling ratios
+	applied on the given input.  For baseline JPEG this is equivalent
-	permit significantly faster decoding since fewer pixels need be
+	to M/8 scaling, since the source DCT size for baseline JPEG is 8.
-	processed and a simpler IDCT method can be used.
+	Smaller scaling ratios permit significantly faster decoding since
+	fewer pixels need be processed and a simpler IDCT method can be used.
 
 boolean quantize_colors
 	If set TRUE, colormapped output will be delivered.  Default is FALSE,
@@ -1245,9 +1273,10 @@ Special color spaces
 The JPEG standard itself is "color blind" and doesn't specify any particular
 color space.  It is customary to convert color data to a luminance/chrominance
 color space before compressing, since this permits greater compression.  The
-existing de-facto JPEG file format standards specify YCbCr or grayscale data
+existing JPEG file interchange format standards specify YCbCr or GRAYSCALE
-(JFIF), or grayscale, RGB, YCbCr, CMYK, or YCCK (Adobe).  For special
+data (JFIF version 1), GRAYSCALE, RGB, YCbCr, CMYK, or YCCK (Adobe), or BG_RGB
-applications such as multispectral images, other color spaces can be used,
+or BG_YCC (big gamut color spaces, JFIF version 2).  For special applications
+such as multispectral images, other color spaces can be used,
 but it must be understood that such files will be unportable.
 
 The JPEG library can handle the most common colorspace conversions (namely
@@ -1264,22 +1293,25 @@ jpeg_set_colorspace().  Of course you must select a supported transformation.
 jccolor.c currently supports the following transformations:
 	RGB => YCbCr
 	RGB => GRAYSCALE
+	RGB => BG_YCC
 	YCbCr => GRAYSCALE
+	YCbCr => BG_YCC
 	CMYK => YCCK
 plus the null transforms: GRAYSCALE => GRAYSCALE, RGB => RGB,
-YCbCr => YCbCr, CMYK => CMYK, YCCK => YCCK, and UNKNOWN => UNKNOWN.
+BG_RGB => BG_RGB, YCbCr => YCbCr, BG_YCC => BG_YCC, CMYK => CMYK,
+YCCK => YCCK, and UNKNOWN => UNKNOWN.
 
-The de-facto file format standards (JFIF and Adobe) specify APPn markers that
+The file interchange format standards (JFIF and Adobe) specify APPn markers
-indicate the color space of the JPEG file.  It is important to ensure that
+that indicate the color space of the JPEG file.  It is important to ensure
-these are written correctly, or omitted if the JPEG file's color space is not
+that these are written correctly, or omitted if the JPEG file's color space
-one of the ones supported by the de-facto standards.  jpeg_set_colorspace()
+is not one of the ones supported by the interchange standards.
-will set the compression parameters to include or omit the APPn markers
+jpeg_set_colorspace() will set the compression parameters to include or omit
-properly, so long as it is told the truth about the JPEG color space.
+the APPn markers properly, so long as it is told the truth about the JPEG
-For example, if you are writing some random 3-component color space without
+color space.  For example, if you are writing some random 3-component color
-conversion, don't try to fake out the library by setting in_color_space and
+space without conversion, don't try to fake out the library by setting
-jpeg_color_space to JCS_YCbCr; use JCS_UNKNOWN.  You may want to write an
+in_color_space and jpeg_color_space to JCS_YCbCr; use JCS_UNKNOWN.
-APPn marker of your own devising to identify the colorspace --- see "Special
+You may want to write an APPn marker of your own devising to identify
-markers", below.
+the colorspace --- see "Special markers", below.
 
 When told that the color space is UNKNOWN, the library will default to using
 luminance-quality compression parameters for all color components.  You may
@@ -1295,8 +1327,11 @@ jpeg_read_header's guess by setting jpeg_color_space.  jpeg_read_header also
 selects a default output color space based on (its guess of) jpeg_color_space;
 set out_color_space to override this.  Again, you must select a supported
 transformation.  jdcolor.c currently supports
-	YCbCr => GRAYSCALE
 	YCbCr => RGB
+	YCbCr => GRAYSCALE
+	BG_YCC => RGB
+	BG_YCC => GRAYSCALE
+	RGB => GRAYSCALE
 	GRAYSCALE => RGB
 	YCCK => CMYK
 as well as the null transforms.  (Since GRAYSCALE=>RGB is provided, an
@@ -1432,21 +1467,22 @@ Compressed data handling (source and destination managers)
 
 The JPEG compression library sends its compressed data to a "destination
 manager" module.  The default destination manager just writes the data to a
-stdio stream, but you can provide your own manager to do something else.
+memory buffer or to a stdio stream, but you can provide your own manager to
-Similarly, the decompression library calls a "source manager" to obtain the
+do something else.  Similarly, the decompression library calls a "source
-compressed data; you can provide your own source manager if you want the data
+manager" to obtain the compressed data; you can provide your own source
-to come from somewhere other than a stdio stream.
+manager if you want the data to come from somewhere other than a memory
+buffer or a stdio stream.
 
 In both cases, compressed data is processed a bufferload at a time: the
 destination or source manager provides a work buffer, and the library invokes
 the manager only when the buffer is filled or emptied.  (You could define a
 one-character buffer to force the manager to be invoked for each byte, but
 that would be rather inefficient.)  The buffer's size and location are
-controlled by the manager, not by the library.  For example, if you desired to
+controlled by the manager, not by the library.  For example, the memory
-decompress a JPEG datastream that was all in memory, you could just make the
+source manager just makes the buffer pointer and length point to the original
-buffer pointer and length point to the original data in memory.  Then the
+data in memory.  In this case the buffer-reload procedure will be invoked
-buffer-reload procedure would be invoked only if the decompressor ran off the
+only if the decompressor ran off the end of the datastream, which would
-end of the datastream, which would indicate an erroneous datastream.
+indicate an erroneous datastream.
 
 The work buffer is defined as an array of datatype JOCTET, which is generally
 "char" or "unsigned char".  On a machine where char is not exactly 8 bits
@@ -1498,7 +1534,8 @@ You will also need code to create a jpeg_destination_mgr struct, fill in its
 method pointers, and insert a pointer to the struct into the "dest" field of
 the JPEG compression object.  This can be done in-line in your setup code if
 you like, but it's probably cleaner to provide a separate routine similar to
-the jpeg_stdio_dest() routine of the supplied destination manager.
+the jpeg_stdio_dest() or jpeg_mem_dest() routines of the supplied destination
+managers.
 
 Decompression source managers follow a parallel design, but with some
 additional frammishes.  The source manager struct contains a pointer and count
@@ -1574,10 +1611,10 @@ You will also need code to create a jpeg_source_mgr struct, fill in its method
 pointers, and insert a pointer to the struct into the "src" field of the JPEG
 decompression object.  This can be done in-line in your setup code if you
 like, but it's probably cleaner to provide a separate routine similar to the
-jpeg_stdio_src() routine of the supplied source manager.
+jpeg_stdio_src() or jpeg_mem_src() routines of the supplied source managers.
 
-For more information, consult the stdio source and destination managers
+For more information, consult the memory and stdio source and destination
-in jdatasrc.c and jdatadst.c.
+managers in jdatasrc.c and jdatadst.c.
 
 
 I/O suspension
@@ -2554,10 +2591,10 @@ different sizes.  If the image dimensions are not a multiple of the MCU size,
 you must also pad the data correctly (usually, this is done by replicating
 the last column and/or row).  The data must be padded to a multiple of a DCT
 block in each component: that is, each downsampled row must contain a
-multiple of 8 valid samples, and there must be a multiple of 8 sample rows
+multiple of block_size valid samples, and there must be a multiple of
-for each component.  (For applications such as conversion of digital TV
+block_size sample rows for each component.  (For applications such as
-images, the standard image size is usually a multiple of the DCT block size,
+conversion of digital TV images, the standard image size is usually a
-so that no padding need actually be done.)
+multiple of the DCT block size, so that no padding need actually be done.)
 
 The procedure for compression of raw data is basically the same as normal
 compression, except that you call jpeg_write_raw_data() in place of
@@ -2583,22 +2620,22 @@ The scanlines count passed to and returned from jpeg_write_raw_data is
 measured in terms of the component with the largest v_samp_factor.
 
 jpeg_write_raw_data() processes one MCU row per call, which is to say
-v_samp_factor*DCTSIZE sample rows of each component.  The passed num_lines
+v_samp_factor*block_size sample rows of each component.  The passed num_lines
-value must be at least max_v_samp_factor*DCTSIZE, and the return value will
+value must be at least max_v_samp_factor*block_size, and the return value
-be exactly that amount (or possibly some multiple of that amount, in future
+will be exactly that amount (or possibly some multiple of that amount, in
-library versions).  This is true even on the last call at the bottom of the
+future library versions).  This is true even on the last call at the bottom
-image; don't forget to pad your data as necessary.
+of the image; don't forget to pad your data as necessary.
 
 The required dimensions of the supplied data can be computed for each
 component as
-	cinfo->comp_info[i].width_in_blocks*DCTSIZE  samples per row
+	cinfo->comp_info[i].width_in_blocks*block_size  samples per row
-	cinfo->comp_info[i].height_in_blocks*DCTSIZE rows in image
+	cinfo->comp_info[i].height_in_blocks*block_size rows in image
 after jpeg_start_compress() has initialized those fields.  If the valid data
 is smaller than this, it must be padded appropriately.  For some sampling
 factors and image sizes, additional dummy DCT blocks are inserted to make
 the image a multiple of the MCU dimensions.  The library creates such dummy
 blocks itself; it does not read them from your supplied data.  Therefore you
-need never pad by more than DCTSIZE samples.  An example may help here.
+need never pad by more than block_size samples.  An example may help here.
 Assume 2h2v downsampling of YCbCr data, that is
 	cinfo->comp_info[0].h_samp_factor = 2		for Y
 	cinfo->comp_info[0].v_samp_factor = 2
@@ -2640,8 +2677,8 @@ Then call jpeg_read_raw_data() in place of jpeg_read_scanlines().  The
 decompression process is otherwise the same as usual.
 
 jpeg_read_raw_data() returns one MCU row per call, and thus you must pass a
-buffer of at least max_v_samp_factor*DCTSIZE scanlines (scanline counting is
+buffer of at least max_v_samp_factor*block_size scanlines (scanline counting
-the same as for raw-data compression).  The buffer you pass must be large
+is the same as for raw-data compression).  The buffer you pass must be large
 enough to hold the actual data plus padding to DCT-block boundaries.  As with
 compression, any entirely dummy DCT blocks are not processed so you need not
 allocate space for them, but the total scanline count includes them.  The
@@ -2897,10 +2934,10 @@ This does not count any memory allocated by the application, such as a
 buffer to hold the final output image.
 
 The above figures are valid for 8-bit JPEG data precision and a machine with
-32-bit ints.  For 12-bit JPEG data, double the size of the strip buffers and
+32-bit ints.  For 9-bit to 12-bit JPEG data, double the size of the strip
-quantization pixel buffer.  The "fixed-size" data will be somewhat smaller
+buffers and quantization pixel buffer.  The "fixed-size" data will be
-with 16-bit ints, larger with 64-bit ints.  Also, CMYK or other unusual
+somewhat smaller with 16-bit ints, larger with 64-bit ints.  Also, CMYK
-color spaces will require different amounts of space.
+or other unusual color spaces will require different amounts of space.
 
 The full-image coefficient and pixel buffers, if needed at all, do not
 have to be fully RAM resident; you can have the library use temporary
@@ -2922,27 +2959,34 @@ Library compile-time options
 
 A number of compile-time options are available by modifying jmorecfg.h.
 
-The JPEG standard provides for both the baseline 8-bit DCT process and
+The IJG code currently supports 8-bit to 12-bit sample data precision by
-a 12-bit DCT process.  The IJG code supports 12-bit lossy JPEG if you define
+defining BITS_IN_JSAMPLE as 8, 9, 10, 11, or 12.
-BITS_IN_JSAMPLE as 12 rather than 8.  Note that this causes JSAMPLE to be
+Note that a value larger than 8 causes JSAMPLE to be larger than a char,
-larger than a char, so it affects the surrounding application's image data.
+so it affects the surrounding application's image data.
-The sample applications cjpeg and djpeg can support 12-bit mode only for PPM
+The sample applications cjpeg and djpeg can support deeper than 8-bit data
-and GIF file formats; you must disable the other file formats to compile a
+only for PPM and GIF file formats; you must disable the other file formats
-12-bit cjpeg or djpeg.  (install.txt has more information about that.)
+to compile a 9-bit to 12-bit cjpeg or djpeg.  (install.txt has more
-At present, a 12-bit library can handle *only* 12-bit images, not both
+information about that.)
-precisions.  (If you need to include both 8- and 12-bit libraries in a single
+Run-time selection and conversion of data precision are currently not
-application, you could probably do it by defining NEED_SHORT_EXTERNAL_NAMES
+supported and may be added later.
-for just one of the copies.  You'd have to access the 8-bit and 12-bit copies
+Exception:  The transcoding part (jpegtran) supports all settings in a
-from separate application source files.  This is untested ... if you try it,
+single instance, since it operates on the level of DCT coefficients and
-we'd like to hear whether it works!)
+not sample values.
+(If you need to include an 8-bit library and a 9-bit to 12-bit library for
+compression or decompression in a single application, you could probably do
+it by defining NEED_SHORT_EXTERNAL_NAMES for just one of the copies.  You'd
+have to access the 8-bit and the 9-bit to 12-bit copies from separate
+application source files.  This is untested ... if you try it, we'd like to
+hear whether it works!)
 
-Note that a 12-bit library always compresses in Huffman optimization mode,
+Note that the standard Huffman tables are only valid for 8-bit data precision.
-in order to generate valid Huffman tables.  This is necessary because our
+If you selected more than 8-bit data precision, cjpeg uses arithmetic coding
-default Huffman tables only cover 8-bit data.  If you need to output 12-bit
+by default.  The Huffman encoder normally uses entropy optimization to
-files in one pass, you'll have to supply suitable default Huffman tables.
+compute usable tables for higher precision.  Otherwise, you'll have to
-You may also want to supply your own DCT quantization tables; the existing
+supply different default Huffman tables.  You may also want to supply your
-quality-scaling code has been developed for 8-bit use, and probably doesn't
+own DCT quantization tables; the existing quality-scaling code has been
-generate especially good tables for 12-bit.
+developed for 8-bit use, and probably doesn't generate especially good tables
+for 9-bit to 12-bit.
 
 The maximum number of components (color channels) in the image is determined
 by MAX_COMPONENTS.  The JPEG standard allows up to 255 components, but we

makeasln.v10

@@ -0,0 +1,33 @@
+<EFBFBD><EFBFBD><EFBFBD>
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual C++ Express 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "cjpeg", "cjpeg.vcxproj", "{2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "djpeg", "djpeg.vcxproj", "{11043137-B453-4DFA-9010-4D2B9DC1545C}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpegtran", "jpegtran.vcxproj", "{025BAC50-51B5-4FFE-BC47-3F920BB4047E}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "rdjpgcom", "rdjpgcom.vcxproj", "{C81513DB-78DC-46BC-BC98-82E745203976}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wrjpgcom", "wrjpgcom.vcxproj", "{B57065D4-DDDA-4668-BAF5-2D49270C973C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Release|Win32 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57}.Release|Win32.ActiveCfg = Release|Win32
+		{2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57}.Release|Win32.Build.0 = Release|Win32
+		{11043137-B453-4DFA-9010-4D2B9DC1545C}.Release|Win32.ActiveCfg = Release|Win32
+		{11043137-B453-4DFA-9010-4D2B9DC1545C}.Release|Win32.Build.0 = Release|Win32
+		{025BAC50-51B5-4FFE-BC47-3F920BB4047E}.Release|Win32.ActiveCfg = Release|Win32
+		{025BAC50-51B5-4FFE-BC47-3F920BB4047E}.Release|Win32.Build.0 = Release|Win32
+		{C81513DB-78DC-46BC-BC98-82E745203976}.Release|Win32.ActiveCfg = Release|Win32
+		{C81513DB-78DC-46BC-BC98-82E745203976}.Release|Win32.Build.0 = Release|Win32
+		{B57065D4-DDDA-4668-BAF5-2D49270C973C}.Release|Win32.ActiveCfg = Release|Win32
+		{B57065D4-DDDA-4668-BAF5-2D49270C973C}.Release|Win32.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

makeasln.vc9

@@ -1,33 +0,0 @@
-<EFBFBD><EFBFBD><EFBFBD>
-Microsoft Visual Studio Solution File, Format Version 10.00
-# Visual C++ Express 2008
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "cjpeg", "cjpeg.vcproj", "{B4F61778-C45D-45C6-9E87-06F03F50519F}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "djpeg", "djpeg.vcproj", "{9B7E57AE-31CD-405E-8070-26A8303B9DC9}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpegtran", "jpegtran.vcproj", "{813C33AF-9031-49D2-BA19-93D600CDD404}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "rdjpgcom", "rdjpgcom.vcproj", "{EB107F86-A8CC-4507-8115-88D31DDE4CDF}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wrjpgcom", "wrjpgcom.vcproj", "{178670D7-FA7F-44A8-96C7-11B1CA14269C}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Release|Win32 = Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{B4F61778-C45D-45C6-9E87-06F03F50519F}.Release|Win32.ActiveCfg = Release|Win32
-		{B4F61778-C45D-45C6-9E87-06F03F50519F}.Release|Win32.Build.0 = Release|Win32
-		{9B7E57AE-31CD-405E-8070-26A8303B9DC9}.Release|Win32.ActiveCfg = Release|Win32
-		{9B7E57AE-31CD-405E-8070-26A8303B9DC9}.Release|Win32.Build.0 = Release|Win32
-		{813C33AF-9031-49D2-BA19-93D600CDD404}.Release|Win32.ActiveCfg = Release|Win32
-		{813C33AF-9031-49D2-BA19-93D600CDD404}.Release|Win32.Build.0 = Release|Win32
-		{EB107F86-A8CC-4507-8115-88D31DDE4CDF}.Release|Win32.ActiveCfg = Release|Win32
-		{EB107F86-A8CC-4507-8115-88D31DDE4CDF}.Release|Win32.Build.0 = Release|Win32
-		{178670D7-FA7F-44A8-96C7-11B1CA14269C}.Release|Win32.ActiveCfg = Release|Win32
-		{178670D7-FA7F-44A8-96C7-11B1CA14269C}.Release|Win32.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal

makecfil.v10

@@ -0,0 +1,69 @@
+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="cderror.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="cdjpeg.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jconfig.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jerror.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jinclude.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jmorecfg.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jpeglib.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jversion.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="cdjpeg.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="cjpeg.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdbmp.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdgif.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdppm.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdrle.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdswitch.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdtarga.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

makecvcp.vc9

@@ -1,186 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9,00"
-	Name="cjpeg"
-	ProjectGUID="{B4F61778-C45D-45C6-9E87-06F03F50519F}"
-	RootNamespace="cjpeg"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(ProjectName)\$(ConfigurationName)"
-			IntermediateDirectory="$(ProjectName)\$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="0"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="3"
-				EnableIntrinsicFunctions="false"
-				EnableFiberSafeOptimizations="true"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS"
-				RuntimeLibrary="2"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				DebugInformationFormat="3"
-				CompileAs="0"
-				DisableSpecificWarnings="4996"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="Release\jpeg.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Quelldateien"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\cdjpeg.c"
-				>
-			</File>
-			<File
-				RelativePath=".\cjpeg.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdbmp.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdgif.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdppm.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdrle.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdswitch.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdtarga.c"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Headerdateien"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\cderror.h"
-				>
-			</File>
-			<File
-				RelativePath=".\cdjpeg.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jconfig.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jerror.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jinclude.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jmorecfg.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jpeglib.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jversion.h"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Ressourcendateien"
-			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
-			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

makecvcx.v10

@@ -0,0 +1,76 @@
+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{2E7FAAD9-2F58-4BDE-81F2-1D6D3FB8BF57}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>cjpeg</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(ProjectName)\$(Configuration)\</OutDir>
+    <IntDir>$(ProjectName)\$(Configuration)\</IntDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <Optimization>Full</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>false</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <OmitFramePointers>true</OmitFramePointers>
+      <EnableFiberSafeOptimizations>true</EnableFiberSafeOptimizations>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>Release\jpeg.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="cderror.h" />
+    <ClInclude Include="cdjpeg.h" />
+    <ClInclude Include="jconfig.h" />
+    <ClInclude Include="jerror.h" />
+    <ClInclude Include="jinclude.h" />
+    <ClInclude Include="jmorecfg.h" />
+    <ClInclude Include="jpeglib.h" />
+    <ClInclude Include="jversion.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="cdjpeg.c" />
+    <ClCompile Include="cjpeg.c" />
+    <ClCompile Include="rdbmp.c" />
+    <ClCompile Include="rdgif.c" />
+    <ClCompile Include="rdppm.c" />
+    <ClCompile Include="rdrle.c" />
+    <ClCompile Include="rdswitch.c" />
+    <ClCompile Include="rdtarga.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

makedfil.v10

@@ -0,0 +1,69 @@
+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="cderror.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="cdjpeg.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jconfig.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jerror.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jinclude.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jmorecfg.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jpeglib.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jversion.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="cdjpeg.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="djpeg.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdcolmap.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrbmp.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrgif.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrppm.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrrle.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrtarga.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

makedvcp.vc9

@@ -1,186 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9,00"
-	Name="djpeg"
-	ProjectGUID="{9B7E57AE-31CD-405E-8070-26A8303B9DC9}"
-	RootNamespace="djpeg"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(ProjectName)\$(ConfigurationName)"
-			IntermediateDirectory="$(ProjectName)\$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="0"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="3"
-				EnableIntrinsicFunctions="false"
-				EnableFiberSafeOptimizations="true"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS"
-				RuntimeLibrary="2"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				DebugInformationFormat="3"
-				CompileAs="0"
-				DisableSpecificWarnings="4996"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="Release\jpeg.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Quelldateien"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\cdjpeg.c"
-				>
-			</File>
-			<File
-				RelativePath=".\djpeg.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdcolmap.c"
-				>
-			</File>
-			<File
-				RelativePath=".\wrbmp.c"
-				>
-			</File>
-			<File
-				RelativePath=".\wrgif.c"
-				>
-			</File>
-			<File
-				RelativePath=".\wrppm.c"
-				>
-			</File>
-			<File
-				RelativePath=".\wrrle.c"
-				>
-			</File>
-			<File
-				RelativePath=".\wrtarga.c"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Headerdateien"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\cderror.h"
-				>
-			</File>
-			<File
-				RelativePath=".\cdjpeg.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jconfig.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jerror.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jinclude.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jmorecfg.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jpeglib.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jversion.h"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Ressourcendateien"
-			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
-			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

makedvcx.v10

@@ -0,0 +1,76 @@
+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{11043137-B453-4DFA-9010-4D2B9DC1545C}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>djpeg</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(ProjectName)\$(Configuration)\</OutDir>
+    <IntDir>$(ProjectName)\$(Configuration)\</IntDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <Optimization>Full</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>false</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <OmitFramePointers>true</OmitFramePointers>
+      <EnableFiberSafeOptimizations>true</EnableFiberSafeOptimizations>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>Release\jpeg.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="cderror.h" />
+    <ClInclude Include="cdjpeg.h" />
+    <ClInclude Include="jconfig.h" />
+    <ClInclude Include="jerror.h" />
+    <ClInclude Include="jinclude.h" />
+    <ClInclude Include="jmorecfg.h" />
+    <ClInclude Include="jpeglib.h" />
+    <ClInclude Include="jversion.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="cdjpeg.c" />
+    <ClCompile Include="djpeg.c" />
+    <ClCompile Include="rdcolmap.c" />
+    <ClCompile Include="wrbmp.c" />
+    <ClCompile Include="wrgif.c" />
+    <ClCompile Include="wrppm.c" />
+    <ClCompile Include="wrrle.c" />
+    <ClCompile Include="wrtarga.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

makefile.ansi

@@ -65,17 +65,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.bcc

@@ -92,17 +92,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.dj

@@ -65,17 +65,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.manx

@@ -66,17 +66,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.mc6

@@ -63,17 +63,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.mms

@@ -52,17 +52,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.sas

@@ -74,17 +74,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.unix

@@ -69,17 +69,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \

makefile.vc

@@ -62,17 +62,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 \
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 \
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st \
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms \
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
@@ -130,8 +131,48 @@ clean:
 	$(RM) *.obj *.exe libjpeg.lib
 	$(RM) testout*
 
-test: cjpeg.exe djpeg.exe jpegtran.exe
+setup-vc6:
-	$(RM) testout*
+	ren jconfig.vc jconfig.h
+	ren makejdsw.vc6 jpeg.dsw
+	ren makeadsw.vc6 apps.dsw
+	ren makejmak.vc6 jpeg.mak
+	ren makejdep.vc6 jpeg.dep
+	ren makejdsp.vc6 jpeg.dsp
+	ren makecmak.vc6 cjpeg.mak
+	ren makecdep.vc6 cjpeg.dep
+	ren makecdsp.vc6 cjpeg.dsp
+	ren makedmak.vc6 djpeg.mak
+	ren makeddep.vc6 djpeg.dep
+	ren makeddsp.vc6 djpeg.dsp
+	ren maketmak.vc6 jpegtran.mak
+	ren maketdep.vc6 jpegtran.dep
+	ren maketdsp.vc6 jpegtran.dsp
+	ren makermak.vc6 rdjpgcom.mak
+	ren makerdep.vc6 rdjpgcom.dep
+	ren makerdsp.vc6 rdjpgcom.dsp
+	ren makewmak.vc6 wrjpgcom.mak
+	ren makewdep.vc6 wrjpgcom.dep
+	ren makewdsp.vc6 wrjpgcom.dsp
+
+setup-v10:
+	ren jconfig.vc jconfig.h
+	ren makejsln.v10 jpeg.sln
+	ren makeasln.v10 apps.sln
+	ren makejvcx.v10 jpeg.vcxproj
+	ren makejfil.v10 jpeg.vcxproj.filters
+	ren makecvcx.v10 cjpeg.vcxproj
+	ren makecfil.v10 cjpeg.vcxproj.filters
+	ren makedvcx.v10 djpeg.vcxproj
+	ren makedfil.v10 djpeg.vcxproj.filters
+	ren maketvcx.v10 jpegtran.vcxproj
+	ren maketfil.v10 jpegtran.vcxproj.filters
+	ren makervcx.v10 rdjpgcom.vcxproj
+	ren makerfil.v10 rdjpgcom.vcxproj.filters
+	ren makewvcx.v10 wrjpgcom.vcxproj
+	ren makewfil.v10 wrjpgcom.vcxproj.filters
+
+test:
+	IF EXIST testout* $(RM) testout*
 	.\djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
 	.\djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
 	.\cjpeg -dct int -outfile testout.jpg  testimg.ppm
@@ -145,6 +186,21 @@ test: cjpeg.exe djpeg.exe jpegtran.exe
 	fc /b testimgp.jpg testoutp.jpg
 	fc /b testorig.jpg testoutt.jpg
 
+test-build:
+	IF EXIST testout* $(RM) testout*
+	.\djpeg\Release\djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
+	.\djpeg\Release\djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
+	.\cjpeg\Release\cjpeg -dct int -outfile testout.jpg  testimg.ppm
+	.\djpeg\Release\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
+	.\cjpeg\Release\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
+	.\jpegtran\Release\jpegtran -outfile testoutt.jpg testprog.jpg
+	fc /b testimg.ppm testout.ppm
+	fc /b testimg.bmp testout.bmp
+	fc /b testimg.jpg testout.jpg
+	fc /b testimg.ppm testoutp.ppm
+	fc /b testimgp.jpg testoutp.jpg
+	fc /b testorig.jpg testoutt.jpg
+
 
 jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
 jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h

makefile.wat

@@ -64,17 +64,18 @@ MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc &
         makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 &
         makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 &
         maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 &
-        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.vc9 &
+        makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 &
-        makeasln.vc9 makejvcp.vc9 makecvcp.vc9 makedvcp.vc9 maketvcp.vc9 &
+        makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 &
-        makervcp.vc9 makewvcp.vc9 makeproj.mac makcjpeg.st makdjpeg.st &
+        makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 &
-        makljpeg.st maktjpeg.st makefile.manx makefile.sas makefile.mms &
+        makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st &
-        makefile.vms makvms.opt
+        makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas &
+        makefile.mms makefile.vms makvms.opt
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat &
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas &
         jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
+CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp &
-OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm &
+        missing ar-lib
-        libjpeg.map
+OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
 TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg &
         testimgp.jpg
 DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) &

makejfil.v10

@@ -0,0 +1,186 @@
+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="jconfig.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jdct.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jerror.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jinclude.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jmemsys.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jmorecfg.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jpegint.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jpeglib.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jversion.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="jaricom.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcapimin.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcapistd.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcarith.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jccoefct.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jccolor.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcdctmgr.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jchuff.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcinit.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcmainct.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcmarker.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcmaster.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcomapi.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcparam.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcprepct.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jcsample.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jctrans.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdapimin.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdapistd.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdarith.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdatadst.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdatasrc.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdcoefct.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdcolor.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jddctmgr.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdhuff.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdinput.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdmainct.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdmarker.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdmaster.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdmerge.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdpostct.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdsample.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jdtrans.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jerror.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jfdctflt.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jfdctfst.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jfdctint.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jidctflt.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jidctfst.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jidctint.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jmemmgr.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jmemnobs.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jquant1.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jquant2.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jutils.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

makejsln.v10

@@ -1,15 +1,15 @@
 ‹¯¨
-Microsoft Visual Studio Solution File, Format Version 10.00
+Microsoft Visual Studio Solution File, Format Version 11.00
-# Visual C++ Express 2008
+# Visual C++ Express 2010
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpeg", "jpeg.vcproj", "{E61592E1-28F4-4AFC-9EE1-9BE833A061C1}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpeg", "jpeg.vcxproj", "{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Release|Win32 = Release|Win32
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{E61592E1-28F4-4AFC-9EE1-9BE833A061C1}.Release|Win32.ActiveCfg = Release|Win32
+		{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.ActiveCfg = Release|Win32
-		{E61592E1-28F4-4AFC-9EE1-9BE833A061C1}.Release|Win32.Build.0 = Release|Win32
+		{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

makejvcp.vc9

@@ -1,328 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9,00"
-	Name="jpeg"
-	ProjectGUID="{E61592E1-28F4-4AFC-9EE1-9BE833A061C1}"
-	RootNamespace="jpeg"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="4"
-			CharacterSet="0"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="3"
-				EnableIntrinsicFunctions="false"
-				EnableFiberSafeOptimizations="true"
-				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_WARNINGS"
-				RuntimeLibrary="2"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				DebugInformationFormat="3"
-				CompileAs="0"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLibrarianTool"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Quelldateien"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\jaricom.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcapimin.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcapistd.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcarith.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jccoefct.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jccolor.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcdctmgr.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jchuff.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcinit.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcmainct.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcmarker.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcmaster.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcomapi.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcparam.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcprepct.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jcsample.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jctrans.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdapimin.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdapistd.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdarith.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdatadst.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdatasrc.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdcoefct.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdcolor.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jddctmgr.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdhuff.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdinput.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdmainct.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdmarker.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdmaster.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdmerge.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdpostct.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdsample.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jdtrans.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jerror.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jfdctflt.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jfdctfst.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jfdctint.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jidctflt.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jidctfst.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jidctint.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jmemmgr.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jmemnobs.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jquant1.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jquant2.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jutils.c"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Headerdateien"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\jconfig.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jdct.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jerror.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jinclude.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jmemsys.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jmorecfg.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jpegint.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jpeglib.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jversion.h"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Ressourcendateien"
-			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
-			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

makejvcx.v10

@@ -0,0 +1,112 @@
+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="jconfig.h" />
+    <ClInclude Include="jdct.h" />
+    <ClInclude Include="jerror.h" />
+    <ClInclude Include="jinclude.h" />
+    <ClInclude Include="jmemsys.h" />
+    <ClInclude Include="jmorecfg.h" />
+    <ClInclude Include="jpegint.h" />
+    <ClInclude Include="jpeglib.h" />
+    <ClInclude Include="jversion.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="jaricom.c" />
+    <ClCompile Include="jcapimin.c" />
+    <ClCompile Include="jcapistd.c" />
+    <ClCompile Include="jcarith.c" />
+    <ClCompile Include="jccoefct.c" />
+    <ClCompile Include="jccolor.c" />
+    <ClCompile Include="jcdctmgr.c" />
+    <ClCompile Include="jchuff.c" />
+    <ClCompile Include="jcinit.c" />
+    <ClCompile Include="jcmainct.c" />
+    <ClCompile Include="jcmarker.c" />
+    <ClCompile Include="jcmaster.c" />
+    <ClCompile Include="jcomapi.c" />
+    <ClCompile Include="jcparam.c" />
+    <ClCompile Include="jcprepct.c" />
+    <ClCompile Include="jcsample.c" />
+    <ClCompile Include="jctrans.c" />
+    <ClCompile Include="jdapimin.c" />
+    <ClCompile Include="jdapistd.c" />
+    <ClCompile Include="jdarith.c" />
+    <ClCompile Include="jdatadst.c" />
+    <ClCompile Include="jdatasrc.c" />
+    <ClCompile Include="jdcoefct.c" />
+    <ClCompile Include="jdcolor.c" />
+    <ClCompile Include="jddctmgr.c" />
+    <ClCompile Include="jdhuff.c" />
+    <ClCompile Include="jdinput.c" />
+    <ClCompile Include="jdmainct.c" />
+    <ClCompile Include="jdmarker.c" />
+    <ClCompile Include="jdmaster.c" />
+    <ClCompile Include="jdmerge.c" />
+    <ClCompile Include="jdpostct.c" />
+    <ClCompile Include="jdsample.c" />
+    <ClCompile Include="jdtrans.c" />
+    <ClCompile Include="jerror.c" />
+    <ClCompile Include="jfdctflt.c" />
+    <ClCompile Include="jfdctfst.c" />
+    <ClCompile Include="jfdctint.c" />
+    <ClCompile Include="jidctflt.c" />
+    <ClCompile Include="jidctfst.c" />
+    <ClCompile Include="jidctint.c" />
+    <ClCompile Include="jmemmgr.c" />
+    <ClCompile Include="jmemnobs.c" />
+    <ClCompile Include="jquant1.c" />
+    <ClCompile Include="jquant2.c">
+      <Optimization Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Disabled</Optimization>
+      <BufferSecurityCheck Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</BufferSecurityCheck>
+    </ClCompile>
+    <ClCompile Include="jutils.c" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>jpeg</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <Optimization>Full</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>false</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <OmitFramePointers>true</OmitFramePointers>
+      <EnableFiberSafeOptimizations>true</EnableFiberSafeOptimizations>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

makerfil.v10

@@ -0,0 +1,30 @@
+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="jconfig.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jinclude.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="rdjpgcom.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

makervcp.vc9

@@ -1,133 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9,00"
-	Name="rdjpgcom"
-	ProjectGUID="{EB107F86-A8CC-4507-8115-88D31DDE4CDF}"
-	RootNamespace="rdjpgcom"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(ProjectName)\$(ConfigurationName)"
-			IntermediateDirectory="$(ProjectName)\$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="0"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="3"
-				EnableIntrinsicFunctions="false"
-				EnableFiberSafeOptimizations="true"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS"
-				RuntimeLibrary="2"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				DebugInformationFormat="3"
-				CompileAs="0"
-				DisableSpecificWarnings="4996"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Quelldateien"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\rdjpgcom.c"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Headerdateien"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\jconfig.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jinclude.h"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Ressourcendateien"
-			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
-			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
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-	<Globals>
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makervcx.v10

@@ -0,0 +1,62 @@
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+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{C81513DB-78DC-46BC-BC98-82E745203976}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>rdjpgcom</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(ProjectName)\$(Configuration)\</OutDir>
+    <IntDir>$(ProjectName)\$(Configuration)\</IntDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <Optimization>Full</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>false</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <OmitFramePointers>true</OmitFramePointers>
+      <EnableFiberSafeOptimizations>true</EnableFiberSafeOptimizations>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="jconfig.h" />
+    <ClInclude Include="jinclude.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="rdjpgcom.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

maketfil.v10

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+<EFBFBD><EFBFBD><EFBFBD><?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="cderror.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="cdjpeg.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jconfig.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jerror.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jinclude.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jmorecfg.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jpegint.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jpeglib.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="jversion.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="transupp.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="cdjpeg.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="jpegtran.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="rdswitch.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="transupp.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

maketvcp.vc9

@@ -1,178 +0,0 @@
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-	Version="9,00"
-	Name="jpegtran"
-	ProjectGUID="{813C33AF-9031-49D2-BA19-93D600CDD404}"
-	RootNamespace="jpegtran"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(ProjectName)\$(ConfigurationName)"
-			IntermediateDirectory="$(ProjectName)\$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="0"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="3"
-				EnableIntrinsicFunctions="false"
-				EnableFiberSafeOptimizations="true"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS"
-				RuntimeLibrary="2"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				DebugInformationFormat="3"
-				CompileAs="0"
-				DisableSpecificWarnings="4996"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="Release\jpeg.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Quelldateien"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\cdjpeg.c"
-				>
-			</File>
-			<File
-				RelativePath=".\jpegtran.c"
-				>
-			</File>
-			<File
-				RelativePath=".\rdswitch.c"
-				>
-			</File>
-			<File
-				RelativePath=".\transupp.c"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Headerdateien"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-			<File
-				RelativePath=".\cderror.h"
-				>
-			</File>
-			<File
-				RelativePath=".\cdjpeg.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jconfig.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jerror.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jinclude.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jmorecfg.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jpegint.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jpeglib.h"
-				>
-			</File>
-			<File
-				RelativePath=".\jversion.h"
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-			<File
-				RelativePath=".\transupp.h"
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-		</Filter>
-		<Filter
-			Name="Ressourcendateien"
-			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
-			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>