The Independent JPEG Group's JPEG software v8d

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 \
@@ -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 +1,9 @@
-# Makefile.in generated by automake 1.11 from Makefile.am.
+# Makefile.in generated by automake 1.11.2 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
-# Inc.
+# 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.
@@ -83,6 +83,12 @@ 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)
@@ -205,6 +211,7 @@ LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
 MEMORYMGR = @MEMORYMGR@
 MKDIR_P = @MKDIR_P@
 NM = @NM@
@@ -218,6 +225,7 @@ 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@
@@ -231,6 +239,7 @@ 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 +272,6 @@ libdir = @libdir@
 libexecdir = @libexecdir@
 localedir = @localedir@
 localstatedir = @localstatedir@
-lt_ECHO = @lt_ECHO@
 mandir = @mandir@
 mkdir_p = @mkdir_p@
 oldincludedir = @oldincludedir@
@@ -320,11 +328,12 @@ 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
@@ -393,7 +402,7 @@ 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 +438,8 @@ $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 $(am__aclocal_m4_deps):
 
 jconfig.h: stamp-h1
-	@if test ! -f $@; then \
+	@if test ! -f $@; then rm -f stamp-h1; else :; fi
-	  rm -f stamp-h1; \
+	@if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) stamp-h1; else :; fi
-	  $(MAKE) $(AM_MAKEFLAGS) stamp-h1; \
-	else :; fi
 
 stamp-h1: $(srcdir)/jconfig.cfg $(top_builddir)/config.status
 	@rm -f stamp-h1
@@ -620,26 +627,23 @@ mostlyclean-kr:
 .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 $<
 
 .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 `$(CYGPATH_W) '$<'`
 
 .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)
@@ -847,9 +851,7 @@ 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)$(includedir)"
@@ -867,9 +869,7 @@ uninstall-includeHEADERS:
 	@$(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) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
@@ -943,10 +943,15 @@ 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:
@@ -1070,7 +1075,7 @@ 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 8d of 15-Jan-2012
-===================================
+====================================
 
-This distribution contains the seventh public release of the Independent JPEG
+This distribution contains the eighth 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
+(also 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) 1991-2012, Thomas G. Lane, Guido Vollbeding.
 All Rights Reserved except as specified below.
 
 Permission is hereby granted to use, copy, modify, and distribute this
@@ -221,16 +222,20 @@ 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 introduces 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.
 
 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 +257,8 @@ 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.v8d.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/jpegsr8d.zip.
 
 The JPEG FAQ (Frequently Asked Questions) article is a source of some
 general information about JPEG.
@@ -269,9 +274,8 @@ 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 +284,16 @@ 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 (also 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 +302,8 @@ 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 +311,41 @@ 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 (also known as JPEG, together
-JPEG-2000 or JPEG-XR which are incompatible with original DCT-based JPEG
+with ITU-T SG16) currently promotes different formats containing the name
-and which are based on faulty technologies.  IJG therefore does not and
+"JPEG" which is misleading because these formats are incompatible with
-will not support such momentary mistakes (see REFERENCES).
+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.)
 
+Furthermore, 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.
+
+There are currently distributions in circulation containing the name
+"libjpeg" which claim to be a "derivative" or "fork" of the original
+libjpeg, but don't have the features and are incompatible with formats
+supported by actual IJG libjpeg distributions.  Furthermore, they
+violate the license conditions as described under LEGAL ISSUES above.
+We have no sympathy for the release of misleading and illegal
+distributions derived from obsolete code bases.
+Don't use an obsolete code base!
+
 
 TO DO
 =====
 
-v7 is basically just a necessary interim release, paving the way for a
+Version 8 is the first 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.
+More features are being prepared for coming releases...
 
 Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org.

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 +1,82 @@
 CHANGE LOG for Independent JPEG Group's JPEG software
 
 
+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 "28 August 2011"
 .SH NAME
 cjpeg \- compress an image file to a JPEG file
 .SH SYNOPSIS
@@ -49,6 +49,14 @@ 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.
+Use this switch in combination with the
+.BI \-block " N"
+switch (see below) for lossless JPEG coding.
+.TP
 .B \-optimize
 Perform optimization of entropy encoding parameters.  Without this, default
 encoding parameters are used.
@@ -64,7 +72,10 @@ 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 +146,7 @@ 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 +163,24 @@ 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 \-dct int
 Use integer DCT method (default).
 .TP
@@ -219,12 +248,6 @@ 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

cjpeg.c

@@ -2,7 +2,7 @@
  * cjpeg.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
- * Modified 2003-2008 by Guido Vollbeding.
+ * 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.
  *
@@ -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 +166,12 @@ 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
 #ifdef DCT_ISLOW_SUPPORTED
   fprintf(stderr, "  -dct int       Use integer DCT method%s\n",
 	  (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
@@ -186,9 +193,6 @@ 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 +258,29 @@ 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 +310,10 @@ 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)) {
+      /* Force an RGB JPEG file to be generated. */
+      jpeg_set_colorspace(cinfo, JCS_RGB);
+
     } else if (keymatch(arg, "maxmemory", 3)) {
       /* Maximum memory in Kb (or Mb with 'm'). */
       long lval;

config.guess

@@ -1,10 +1,10 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   Free Software Foundation, Inc.
+#   2011 Free Software Foundation, Inc.
 
-timestamp='2009-04-27'
+timestamp='2011-11-11'
 
 # 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
@@ -27,16 +27,16 @@ timestamp='2009-04-27'
 # the same distribution terms that you use for the rest of that program.
 
 
-# Originally written by Per Bothner <per@bothner.com>.
+# Originally written by Per Bothner.  Please send patches (context
-# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff format) to <config-patches@gnu.org> and include a ChangeLog
-# diff and a properly formatted ChangeLog entry.
+# entry.
 #
 # This script attempts to guess a canonical system name similar to
 # 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
 
 me=`echo "$0" | sed -e 's,.*/,,'`
 
@@ -56,8 +56,9 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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."
@@ -170,7 +171,7 @@ 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__ | $CC_FOR_BUILD -E - 2>/dev/null \
-			| grep __ELF__ >/dev/null
+			| grep -q __ELF__
 		then
 		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
 		    # Return netbsd for either.  FIX?
@@ -269,7 +270,10 @@ case "${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 $exitcode ;;
     Alpha\ *:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# Should we change UNAME_MACHINE based on the output of uname instead
@@ -333,6 +337,9 @@ case "${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 +555,7 @@ 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 +663,7 @@ 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
@@ -785,13 +792,12 @@ 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*:*)
@@ -800,6 +806,9 @@ EOF
     *: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 +816,12 @@ 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${UNAME_RELEASE}
 		exit ;;
 	    IA64)
@@ -822,6 +831,9 @@ EOF
     [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
 	echo i${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
@@ -851,6 +863,20 @@ EOF
     i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
 	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	exit ;;
     arm*:Linux:*:*)
 	eval $set_cc_for_build
 	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
@@ -858,7 +884,13 @@ EOF
 	then
 	    echo ${UNAME_MACHINE}-unknown-linux-gnu
 	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
 		echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
+	    fi
 	fi
 	exit ;;
     avr32*:Linux:*:*)
@@ -873,6 +905,20 @@ EOF
     frv:Linux:*:*)
 	echo frv-unknown-linux-gnu
 	exit ;;
+    hexagon:Linux:*:*)
+	echo hexagon-unknown-linux-gnu
+	exit ;;
+    i*86:Linux:*:*)
+	LIBC=gnu
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#ifdef __dietlibc__
+	LIBC=dietlibc
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+	echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+	exit ;;
     ia64:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
@@ -882,78 +928,34 @@ EOF
     m68*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
-    mips:Linux:*:*)
+    mips:Linux:*:* | mips64:Linux:*:*)
 	eval $set_cc_for_build
 	sed 's/^	//' << EOF >$dummy.c
 	#undef CPU
-	#undef mips
+	#undef ${UNAME_MACHINE}
-	#undef mipsel
+	#undef ${UNAME_MACHINE}el
 	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mipsel
+	CPU=${UNAME_MACHINE}el
 	#else
 	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips
+	CPU=${UNAME_MACHINE}
 	#else
 	CPU=
 	#endif
 	#endif
 EOF
-	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
-	    /^CPU/{
-		s: ::g
-		p
-	    }'`"
-	test x"${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
-	  EV5)   UNAME_MACHINE=alphaev5 ;;
-	  EV56)  UNAME_MACHINE=alphaev56 ;;
-	  PCA56) UNAME_MACHINE=alphapca56 ;;
-	  PCA57) UNAME_MACHINE=alphapca56 ;;
-	  EV6)   UNAME_MACHINE=alphaev6 ;;
-	  EV67)  UNAME_MACHINE=alphaev67 ;;
-	  EV68*) UNAME_MACHINE=alphaev68 ;;
-        esac
-	objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
-	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
-	exit ;;
     padre:Linux:*:*)
 	echo sparc-unknown-linux-gnu
 	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-gnu
+	exit ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
@@ -962,8 +964,11 @@ EOF
 	  *)    echo hppa-unknown-linux-gnu ;;
 	esac
 	exit ;;
-    parisc64:Linux:*:* | hppa64:Linux:*:*)
+    ppc64:Linux:*:*)
-	echo hppa64-unknown-linux-gnu
+	echo powerpc64-unknown-linux-gnu
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-gnu
 	exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
 	echo ${UNAME_MACHINE}-ibm-linux
@@ -977,6 +982,9 @@ EOF
     sparc:Linux:*:* | sparc64:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
+    tile*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
     vax:Linux:*:*)
 	echo ${UNAME_MACHINE}-dec-linux-gnu
 	exit ;;
@@ -986,66 +994,6 @@ EOF
     xtensa*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
-    i*86:Linux:*:*)
-	# The BFD linker knows what the default object file format is, so
-	# first see if it will tell us. cd to the root directory to prevent
-	# problems with other programs or directories called `ld' in the path.
-	# Set LC_ALL=C to ensure ld outputs messages in English.
-	ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
-			 | sed -ne '/supported targets:/!d
-				    s/[ 	][ 	]*/ /g
-				    s/.*supported targets: *//
-				    s/ .*//
-				    p'`
-        case "$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 +1022,7 @@ 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 +1130,7 @@ 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:*:*)
@@ -1275,6 +1223,16 @@ EOF
     *:Darwin:*:*)
 	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
 	case $UNAME_PROCESSOR in
+	    i386)
+		eval $set_cc_for_build
+		if [ "$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
+		      UNAME_PROCESSOR="x86_64"
+		  fi
+		fi ;;
 	    unknown) UNAME_PROCESSOR=powerpc ;;
 	esac
 	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
@@ -1290,6 +1248,9 @@ EOF
     *:QNX:*:4*)
 	echo i386-pc-qnx
 	exit ;;
+    NEO-?:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk${UNAME_RELEASE}
+	exit ;;
     NSE-?:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;

config.sub

@@ -1,10 +1,10 @@
 #! /bin/sh
 # Configuration validation subroutine script.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   Free Software Foundation, Inc.
+#   2011 Free Software Foundation, Inc.
 
-timestamp='2009-04-17'
+timestamp='2011-11-11'
 
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
@@ -32,13 +32,16 @@ timestamp='2009-04-17'
 
 
 # Please send patches to <config-patches@gnu.org>.  Submit a context
-# diff and a properly formatted ChangeLog entry.
+# diff and a properly formatted GNU 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 +75,9 @@ 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 (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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."
@@ -120,8 +124,9 @@ esac
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
-  uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
+  linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | \
   kopensolaris*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
@@ -149,10 +154,13 @@ 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
@@ -243,13 +251,17 @@ case $basic_machine in
 	| 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 \
+        | be32 | be64 \
 	| bfin \
 	| c4x | 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 \
+	| le32 | le64 \
 	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
 	| maxq | mb | microblaze | mcore | mep | metag \
@@ -275,26 +287,39 @@ case $basic_machine in
 	| moxie \
 	| mt \
 	| msp430 \
+	| nds32 | nds32le | nds32be \
 	| nios | nios2 \
 	| ns16k | ns32k \
+	| open8 \
 	| or32 \
 	| pdp10 | pdp11 | pj | pjl \
-	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
 	| pyramid \
+	| rl78 | rx \
 	| score \
 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
-	| spu | strongarm \
+	| spu \
-	| tahoe | thumb | tic4x | tic80 | tron \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
-	| v850 | v850e \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
 	| we32k \
-	| x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
+	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
 		basic_machine=$basic_machine-unknown
 		;;
-	m6811 | m68hc11 | m6812 | m68hc12)
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | picochip)
 		# Motorola 68HC11/12.
 		basic_machine=$basic_machine-unknown
 		os=-none
@@ -305,6 +330,18 @@ case $basic_machine in
 		basic_machine=mt-unknown
 		;;
 
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+
+	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.
@@ -324,20 +361,23 @@ case $basic_machine in
 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
 	| 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-* \
 	| 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-* \
+	| le32-* | le64-* \
 	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
-	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \
 	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
 	| mips16-* \
 	| mips64-* | mips64el-* \
@@ -359,24 +399,29 @@ case $basic_machine in
 	| mmix-* \
 	| mt-* \
 	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
 	| nios-* | nios2-* \
 	| 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 +512,19 @@ 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 +561,7 @@ case $basic_machine in
 		basic_machine=craynv-cray
 		os=-unicosmp
 		;;
-	cr16)
+	cr16 | cr16-*)
 		basic_machine=cr16-unknown
 		os=-elf
 		;;
@@ -719,6 +777,9 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
+	microblaze)
+		basic_machine=microblaze-xilinx
+		;;
 	mingw32)
 		basic_machine=i386-pc
 		os=-mingw32
@@ -755,10 +816,18 @@ case $basic_machine in
 	ms1-*)
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
+	msys)
+		basic_machine=i386-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 +892,12 @@ 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 +980,10 @@ 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
@@ -1001,6 +1077,9 @@ 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 +1136,8 @@ 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 +1207,9 @@ 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 +1310,9 @@ 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|'`
 		;;
@@ -1260,9 +1333,9 @@ 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* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
 	      | -aos* | -aros* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
@@ -1274,8 +1347,9 @@ case $os in
 	      | -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* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
@@ -1283,7 +1357,7 @@ 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*)
@@ -1416,6 +1490,8 @@ case $os in
 	-dicos*)
 		os=-dicos
 		;;
+	-nacl*)
+		;;
 	-none)
 		;;
 	*)
@@ -1456,6 +1532,15 @@ case $basic_machine in
 	c4x-* | tic4x-*)
 		os=-coff
 		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
 	# This must come before the *-dec entry.
 	pdp10-*)
 		os=-tops20
@@ -1613,7 +1698,7 @@ 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], [8.4.0])
 
 # Directory where autotools helper scripts lives.
 AC_CONFIG_AUX_DIR([.])
@@ -21,7 +21,7 @@ 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 -Wno-obsolete ansi2knr no-dist foreign])
 
 # Make --enable-silent-rules the default.
 # To get verbose build output you may configure
@@ -63,7 +63,7 @@ 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="$save_LDFLAGS"
@@ -72,9 +72,9 @@ fi
 AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$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 +85,29 @@ 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 +122,42 @@ 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 * */
@@ -166,39 +179,51 @@ 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_PROTOTYPES
 int is_char_signed (int arg)
@@ -220,12 +245,14 @@ 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_PROTOTYPES
 int is_shifting_signed (long arg)
@@ -252,20 +279,26 @@ 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([
 #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 +308,9 @@ 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 +321,36 @@ 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 +1,10 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects
 
-scriptversion=2009-04-28.21; # UTC
+scriptversion=2011-12-04.11; # UTC
 
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
+# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
-# Software Foundation, Inc.
+# 2011 Free 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
@@ -44,7 +44,7 @@ Environment variables:
   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>.
@@ -90,10 +90,18 @@ 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 "$depmode" = msvc7msys; then
+   # This is just like msvc7 but w/o cygpath translation.
+   # Just convert the backslash-escaped backslashes to single forward
+   # slashes to satisfy depend.m4
+   cygpath_u='sed s,\\\\,/,g'
+   depmode=msvc7
+fi
+
 case "$depmode" in
 gcc3)
 ## gcc 3 implements dependency tracking that does exactly what
@@ -158,10 +166,12 @@ gcc)
 ' < "$tmpdepfile" |
 ## Some versions of gcc put a space before the `:'.  On the theory
 ## that the space means something, we add a space to the output as
-## well.
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+    sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+      | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -405,6 +415,52 @@ tru64)
    rm -f "$tmpdepfile"
    ;;
 
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test "$stat" = 0; then :
+  else
+    rm -f "$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/\(.*\)/	\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/	/
+  G
+  p
+}' >> "$depfile"
+  rm -f "$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)
   # This comment above is used by automake to tell side-effect
   # dependency tracking mechanisms from slower ones.
@@ -503,7 +559,9 @@ 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.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
   sed '1,2d' "$tmpdepfile" | tr ' ' '
 ' | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation

djpeg.1

@@ -1,4 +1,4 @@
-.TH DJPEG 1 "28 March 2009"
+.TH DJPEG 1 "3 October 2009"
 .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.

filelist.txt

@@ -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:
 

install-sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2009-04-28.21; # UTC
+scriptversion=2011-01-19.21; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -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
 
@@ -200,7 +208,11 @@ if test $# -eq 0; then
 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.
@@ -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) 1991-2011, 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.
@@ -998,8 +998,8 @@ 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 +1015,50 @@ 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 */

jcarith.c

@@ -1,7 +1,7 @@
 /*
  * jcarith.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.
  *
@@ -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);
     }
   }
@@ -427,9 +429,9 @@ 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;
@@ -455,6 +457,7 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   unsigned char *st;
   int tbl, k, ke;
   int v, v2, m;
+  const int * natural_order;
 
   /* Emit restart marker if needed */
   if (cinfo->restart_interval) {
@@ -467,6 +470,8 @@ 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;
@@ -474,12 +479,12 @@ 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--)
+  for (ke = cinfo->Se; ke > 0; ke--)
     /* 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;
@@ -487,22 +492,21 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     }
 
   /* Figure F.5: Encode_AC_Coefficients */
-  for (k = cinfo->Ss; k < ke; k++) {
+  for (k = cinfo->Ss; k <= ke; k++) {
     st = entropy->ac_stats[tbl] + 3 * (k - 1);
     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;
 	}
       }
@@ -551,7 +555,7 @@ 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 +569,11 @@ 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);
   }
@@ -590,6 +594,7 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   unsigned char *st;
   int tbl, k, ke, kex;
   int v;
+  const int * natural_order;
 
   /* Emit restart marker if needed */
   if (cinfo->restart_interval) {
@@ -602,6 +607,8 @@ 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;
@@ -609,12 +616,12 @@ 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--)
+  for (ke = cinfo->Se; ke > 0; ke--)
     /* 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;
@@ -622,8 +629,8 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
     }
 
   /* 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 +638,18 @@ 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; k <= ke; k++) {
     st = entropy->ac_stats[tbl] + 3 * (k - 1);
-    if (k >= kex)
+    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;
 	}
@@ -654,7 +660,7 @@ 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;
 	}
@@ -685,6 +691,7 @@ encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   unsigned char *st;
   int blkn, ci, tbl, k, ke;
   int v, v2, m;
+  const int * natural_order;
 
   /* Emit restart marker if needed */
   if (cinfo->restart_interval) {
@@ -697,6 +704,8 @@ 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 +753,9 @@ 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 +765,30 @@ 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 +815,9 @@ 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 +862,11 @@ 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 +878,8 @@ 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);
@@ -918,4 +931,7 @@ 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 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.
  *
@@ -299,6 +300,39 @@ 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.
@@ -368,11 +402,9 @@ jinit_color_converter (j_compress_ptr cinfo)
     break;
 
   case JCS_RGB:
-#if RGB_PIXELSIZE != 3
     if (cinfo->input_components != RGB_PIXELSIZE)
       ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
     break;
-#endif /* else share code with YCbCr */
 
   case JCS_YCbCr:
     if (cinfo->input_components != 3)
@@ -396,22 +428,21 @@ jinit_color_converter (j_compress_ptr cinfo)
   case JCS_GRAYSCALE:
     if (cinfo->num_components != 1)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_GRAYSCALE)
+    if (cinfo->in_color_space == JCS_GRAYSCALE ||
+	cinfo->in_color_space == JCS_YCbCr)
       cconvert->pub.color_convert = grayscale_convert;
     else if (cinfo->in_color_space == JCS_RGB) {
       cconvert->pub.start_pass = rgb_ycc_start;
       cconvert->pub.color_convert = rgb_gray_convert;
-    } else if (cinfo->in_color_space == JCS_YCbCr)
+    } else
-      cconvert->pub.color_convert = grayscale_convert;
-    else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
 
   case JCS_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 == JCS_RGB)
-      cconvert->pub.color_convert = null_convert;
+      cconvert->pub.color_convert = rgb_convert;
     else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;

jchuff.c

@@ -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;
@@ -419,12 +408,25 @@ 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 +469,7 @@ 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);
 
@@ -592,7 +594,7 @@ 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, compptr->dc_tbl_no, nbits);
     
     /* Emit that number of bits of the value, if positive, */
     /* or the complement of its magnitude, if negative. */
@@ -629,8 +631,8 @@ encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   register int temp, temp2;
   register int nbits;
   register int r, k;
-  int Se = cinfo->Se;
+  int Se, Al;
-  int Al = cinfo->Al;
+  const int * natural_order;
   JBLOCKROW block;
 
   entropy->next_output_byte = cinfo->dest->next_output_byte;
@@ -641,6 +643,10 @@ 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 +655,7 @@ 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 +684,7 @@ 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 +697,7 @@ 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. */
@@ -785,8 +791,8 @@ encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
   int EOB;
   char *BR_buffer;
   unsigned int BR;
-  int Se = cinfo->Se;
+  int Se, Al;
-  int Al = cinfo->Al;
+  const int * natural_order;
   JBLOCKROW block;
   int absvalues[DCTSIZE2];
 
@@ -798,6 +804,10 @@ 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 +816,7 @@ 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 +846,7 @@ 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 +869,10 @@ 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 */
@@ -909,6 +919,8 @@ encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
   register int temp, temp2;
   register int nbits;
   register int k, r, i;
+  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 +959,8 @@ 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 ((temp = block[natural_order[k]]) == 0) {
       r++;
     } else {
       /* if run length > 15, must emit special run-length-16 codes (0xF0) */
@@ -1113,6 +1125,8 @@ htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
   register int temp;
   register int nbits;
   register int k, r;
+  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 +1153,8 @@ 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 +1397,44 @@ 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 +1451,7 @@ 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 +1484,8 @@ 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 +1493,50 @@ 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 */
@@ -1595,18 +1565,12 @@ jinit_huff_encoder (j_compress_ptr cinfo)
   cinfo->entropy = (struct jpeg_entropy_encoder *) entropy;
   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 */
 }

jcmarker.c

@@ -2,6 +2,7 @@
  * jcmarker.c
  *
  * Copyright (C) 1991-1998, 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.
  *
@@ -153,21 +154,22 @@ 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 +237,11 @@ 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 +249,7 @@ 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 +264,7 @@ emit_dac (j_compress_ptr cinfo)
 	emit_byte(cinfo, cinfo->arith_ac_K[i]);
       }
     }
+  }
 #endif /* C_ARITH_CODING_SUPPORTED */
 }
 
@@ -320,22 +328,16 @@ 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 +347,22 @@ 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 */
@@ -484,7 +502,7 @@ write_file_header (j_compress_ptr cinfo)
 
 /*
  * Write frame header.
- * This consists of DQT and SOFn markers.
+ * This consists of DQT and SOFn markers, 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 +529,7 @@ 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 +559,10 @@ write_frame_header (j_compress_ptr cinfo)
     else
       emit_sof(cinfo, M_SOF1);	/* SOF code for non-baseline Huffman file */
   }
+
+  /* Check to emit pseudo SOS marker */
+  if (cinfo->progressive_mode && cinfo->block_size != DCTSIZE)
+    emit_pseudo_sos(cinfo);
 }
 
 
@@ -569,20 +591,13 @@ 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.

jcmaster.c

@@ -2,7 +2,7 @@
  * jcmaster.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2003-2009 by Guido Vollbeding.
+ * 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.
  *
@@ -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;
   }
@@ -191,7 +206,18 @@ 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;
@@ -199,11 +225,33 @@ initial_setup (j_compress_ptr cinfo)
   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 || cinfo->input_components <= 0)
     ERREXIT(cinfo, JERR_EMPTY_IMAGE);
 
   /* Make sure image isn't bigger than I can handle */
@@ -278,19 +326,19 @@ 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) */
     compptr->component_needed = TRUE;
   }
@@ -300,7 +348,7 @@ 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 +488,39 @@ 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 +541,13 @@ 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 +560,11 @@ 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 +612,10 @@ 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;
     
@@ -734,11 +818,13 @@ jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only)
   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 +833,10 @@ 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->progressive_mode || cinfo->block_size < DCTSIZE) &&
-    cinfo->optimize_coding = TRUE; /* assume default tables no good for progressive mode */
+      !cinfo->arith_code)			/*  TEMPORARY HACK ??? */
+    /* assume default tables no good for progressive or downscale mode */
+    cinfo->optimize_coding = TRUE;
 
   /* Initialize my private state */
   if (transcode_only) {

jconfig.cfg

@@ -17,6 +17,14 @@
 /* Define this if you get warnings about undefined structures. */
 #undef INCOMPLETE_TYPES_BROKEN
 
+/* Define "boolean" as unsigned char, not int, on Windows systems. */
+#ifdef _WIN32
+#ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
+typedef unsigned char boolean;
+#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

@@ -91,6 +91,15 @@
  */
 #undef INCOMPLETE_TYPES_BROKEN
 
+/* Define "boolean" as unsigned char, not int, on Windows systems.
+ */
+#ifdef _WIN32
+#ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
+typedef unsigned char boolean;
+#endif
+#define HAVE_BOOLEAN		/* prevent jmorecfg.h from redefining it */
+#endif
+
 
 /*
  * The following options affect code selection within the JPEG library,

jctrans.c

@@ -2,6 +2,7 @@
  * jctrans.c
  *
  * Copyright (C) 1995-1998, Thomas G. Lane.
+ * Modified 2000-2011 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.
  *
@@ -76,6 +77,10 @@ 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.
@@ -158,17 +163,13 @@ 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);
   }
 
@@ -374,7 +375,7 @@ 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

@@ -186,8 +186,8 @@ 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;

jdarith.c

@@ -1,7 +1,7 @@
 /*
  * jdarith.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.
  *
@@ -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;
@@ -354,8 +358,7 @@ 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) {
@@ -380,7 +383,7 @@ 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);
   }
 
   return TRUE;
@@ -395,7 +398,7 @@ 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 +408,12 @@ 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 +436,7 @@ 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 +447,8 @@ 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 +457,15 @@ 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--)
+  for (kex = cinfo->Se; kex > 0; kex--)
-    if ((*block)[jpeg_natural_order[kex - 1]]) break;
+    if ((*block)[natural_order[kex]]) break;
 
   for (k = cinfo->Ss; k <= cinfo->Se; k++) {
     st = entropy->ac_stats[tbl] + 3 * (k - 1);
-    if (k >= kex)
+    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)
@@ -470,8 +476,7 @@ 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;
@@ -503,6 +508,7 @@ 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 +519,8 @@ 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 +556,9 @@ 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 +575,19 @@ 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 +595,7 @@ 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 +619,8 @@ 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 +645,7 @@ 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 +691,19 @@ 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 +715,8 @@ 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);
@@ -748,6 +759,9 @@ 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 +215,53 @@ 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.
+ */
+
+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 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.
  *
@@ -23,20 +24,28 @@ typedef struct {
   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 */
+
+  /* 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 **************/
+/****************   RGB -> Y   conversion: less common case **************/
 
 /*
  * YCbCr is defined per CCIR 601-1, except that Cb and Cr are
  * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
  * The conversion equations to be implemented are therefore
+ *
  *	R = Y                + 1.40200 * Cr
  *	G = Y - 0.34414 * Cb - 0.71414 * Cr
  *	B = Y + 1.77200 * Cb
+ *
+ *	Y = 0.29900 * R + 0.58700 * G + 0.11400 * 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.)
  *
@@ -61,6 +70,18 @@ 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.
@@ -160,6 +181,98 @@ ycc_rgb_convert (j_decompress_ptr cinfo,
 /**************** Cases other than YCbCr -> 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(0.29900) * i;
+    rgb_y_tab[i+G_Y_OFF] = FIX(0.58700) * i;
+    rgb_y_tab[i+B_Y_OFF] = FIX(0.11400) * 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 int r, g, b;
+  register INT32 * ctab = cconvert->rgb_y_tab;
+  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);
+    }
+  }
+}
+
+
+/*
+ * 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;
+    }
+  }
+}
+
+
 /*
  * Color conversion for no colorspace change: just copy the data,
  * converting from separate-planes to interleaved representation.
@@ -351,6 +464,9 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
       /* 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 if (cinfo->jpeg_color_space == JCS_RGB) {
+      cconvert->pub.color_convert = rgb_gray_convert;
+      build_rgb_y_table(cinfo);
     } else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
@@ -362,8 +478,8 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
       build_ycc_rgb_table(cinfo);
     } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
       cconvert->pub.color_convert = gray_rgb_convert;
-    } else if (cinfo->jpeg_color_space == JCS_RGB && RGB_PIXELSIZE == 3) {
+    } else if (cinfo->jpeg_color_space == JCS_RGB) {
-      cconvert->pub.color_convert = null_convert;
+      cconvert->pub.color_convert = rgb_convert;
     } else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;

jddctmgr.c

@@ -2,6 +2,7 @@
  * jddctmgr.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2002-2010 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.
  *
@@ -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++;
 	  }
 	}

jdhuff.c

@@ -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;
@@ -616,7 +662,7 @@ 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 +714,7 @@ 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 +766,10 @@ 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 +784,11 @@ 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.
@@ -764,7 +814,7 @@ 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 */
 	    k += 15;		/* skip 15 zeroes in band */
@@ -854,11 +904,10 @@ 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 +924,12 @@ 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);
@@ -926,7 +980,7 @@ 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) {
 	    CHECK_BIT_BUFFER(br_state, 1, goto undoit);
 	    if (GET_BITS(1)) {
@@ -944,7 +998,7 @@ 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 */
@@ -960,7 +1014,7 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
        * if the absolute value of the coefficient must be increased.
        */
       for (; k <= Se; k++) {
-	thiscoef = *block + jpeg_natural_order[k];
+	thiscoef = *block + natural_order[k];
 	if (*thiscoef != 0) {
 	  CHECK_BIT_BUFFER(br_state, 1, goto undoit);
 	  if (GET_BITS(1)) {
@@ -997,7 +1051,136 @@ 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 +1201,7 @@ 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 +1310,7 @@ 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 +1320,7 @@ 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 +1379,16 @@ 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 +1401,35 @@ 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 +1444,47 @@ 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 +1494,7 @@ 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;

jdinput.c

@@ -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;
+  /* jdinput.c 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 */
@@ -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;
     
@@ -285,6 +549,10 @@ 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 +564,19 @@ 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 +584,11 @@ 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 +601,13 @@ 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 +623,7 @@ 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);
@@ -380,5 +657,5 @@ 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;
 }

jdmarker.c

@@ -2,6 +2,7 @@
  * jdmarker.c
  *
  * Copyright (C) 1991-1998, 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.
  *
@@ -234,7 +235,8 @@ 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;
@@ -242,6 +244,7 @@ get_sof (j_decompress_ptr cinfo, boolean is_prog, boolean is_arith)
   jpeg_component_info * compptr;
   INPUT_VARS(cinfo);
 
+  cinfo->is_baseline = is_baseline;
   cinfo->progressive_mode = is_prog;
   cinfo->arith_code = is_arith;
 
@@ -315,7 +318,9 @@ 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;
@@ -359,8 +364,8 @@ 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;
@@ -490,16 +495,18 @@ 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 +520,43 @@ 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 +569,8 @@ get_dqt (j_decompress_ptr cinfo)
       }
     }
 
-    length -= DCTSIZE2+1;
+    length -= count;
-    if (prec) length -= DCTSIZE2;
+    if (prec) length -= count;
   }
 
   if (length != 0)
@@ -946,6 +983,11 @@ 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 +1017,27 @@ 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;
 

jdmaster.c

@@ -2,7 +2,7 @@
  * jdmaster.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2002-2008 by Guido Vollbeding.
+ * 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.
  *
@@ -86,7 +86,9 @@ 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 +99,11 @@ 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 +142,13 @@ 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. */
@@ -288,10 +158,8 @@ jpeg_calc_output_dimensions (j_decompress_ptr cinfo)
     cinfo->out_color_components = 1;
     break;
   case JCS_RGB:
-#if RGB_PIXELSIZE != 3
     cinfo->out_color_components = RGB_PIXELSIZE;
     break;
-#endif /* else share code with YCbCr */
   case JCS_YCbCr:
     cinfo->out_color_components = 3;
     break;
@@ -485,9 +353,9 @@ 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);
   }
 

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);

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 */
   }

jmemmgr.c

@@ -2,6 +2,7 @@
  * jmemmgr.c
  *
  * Copyright (C) 1991-1997, 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.
  *
@@ -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 1997-2011 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.
  *
@@ -160,11 +160,13 @@ 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
@@ -310,9 +312,7 @@ 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 1997-2011 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.
  *
@@ -213,10 +213,6 @@ struct jpeg_entropy_decoder {
   JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
   JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo,
 				JBLOCKROW *MCU_data));
-
-  /* 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 2002-2011 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.
  *
@@ -33,11 +33,13 @@ 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 >= 80".
  */
 
-#define JPEG_LIB_VERSION  70	/* Version 7.0 */
+#define JPEG_LIB_VERSION        80	/* Compatibility version 8.0 */
+#define JPEG_LIB_VERSION_MAJOR  8
+#define JPEG_LIB_VERSION_MINOR  4
 
 
 /* Various constants determining the sizes of things.
@@ -45,7 +47,7 @@ extern "C" {
  * 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 */
@@ -171,7 +173,7 @@ typedef struct {
   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 */
 
@@ -414,6 +416,10 @@ 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 +566,7 @@ 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 */
 
@@ -633,6 +640,12 @@ 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.
@@ -862,6 +875,8 @@ 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 +909,7 @@ 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 +954,14 @@ 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 +1056,7 @@ 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 "28 December 2009"
 .SH NAME
 jpegtran \- lossless transformation of JPEG files
 .SH SYNOPSIS
@@ -165,7 +165,7 @@ The image can be losslessly cropped by giving the switch:
 .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:
+Other not-strictly-lossless transformation switches are:
 .TP
 .B \-grayscale
 Force grayscale output.
@@ -178,6 +178,19 @@ 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) 1995-2011, 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 +63,29 @@ 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, "  -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 */
+#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 +136,11 @@ 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;
@@ -299,6 +304,13 @@ 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
@@ -453,20 +465,22 @@ main (int argc, char **argv)
   /* Read file header */
   (void) jpeg_read_header(&srcinfo, TRUE);
 
+  /* Adjust default decompression parameters */
+  if (scaleoption != NULL)
+    if (sscanf(scaleoption, "%d/%d",
+	&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) 1991-2012, 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	"8d  15-Jan-2012"
 
-#define JCOPYRIGHT	"Copyright (C) 2009, Thomas G. Lane, Guido Vollbeding"
+#define JCOPYRIGHT	"Copyright (C) 2012, Thomas G. Lane, Guido Vollbeding"

libjpeg.map

@@ -1,4 +1,4 @@
-LIBJPEG_7.0 {
+LIBJPEG_8.0 {
   global:
     *;
 };

libjpeg.txt

@@ -1,6 +1,6 @@
 USING THE IJG JPEG LIBRARY
 
-Copyright (C) 1994-2009, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1994-2011, 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.
 
@@ -876,6 +876,18 @@ jpeg_simple_progression (j_compress_ptr cinfo)
 
 Compression parameters (cinfo fields) include:
 
+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
@@ -895,8 +907,10 @@ 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
@@ -1123,16 +1137,17 @@ 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,
@@ -1295,8 +1310,9 @@ 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
+	RGB => GRAYSCALE
 	GRAYSCALE => RGB
 	YCCK => CMYK
 as well as the null transforms.  (Since GRAYSCALE=>RGB is provided, an
@@ -1432,21 +1448,22 @@ 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 +1515,8 @@ 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 +1592,10 @@ 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
@@ -2923,7 +2941,7 @@ 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
-a 12-bit DCT process.  The IJG code supports 12-bit lossy JPEG if you define
+a 12-bit DCT process.  The IJG code supports 12-bit JPEG if you define
 BITS_IN_JSAMPLE as 12 rather than 8.  Note that this causes JSAMPLE to be
 larger than a char, so it affects the surrounding application's image data.
 The sample applications cjpeg and djpeg can support 12-bit mode only for PPM

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

@@ -65,11 +65,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.bcc

@@ -92,11 +92,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.dj

@@ -65,11 +65,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.manx

@@ -66,11 +66,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.mc6

@@ -63,11 +63,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.mms

@@ -52,11 +52,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.sas

@@ -74,11 +74,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.unix

@@ -69,11 +69,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms

makefile.vc

@@ -62,11 +62,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
         jconfig.vms
@@ -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

@@ -64,11 +64,12 @@ 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
 CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat &
         jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas &
         jconfig.vms

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"
-				>
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-		</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"
-				>
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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>

makervcx.v10

@@ -0,0 +1,62 @@
+<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>{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

@@ -0,0 +1,63 @@
+<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 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	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"
-				>
-			</File>
-			<File
-				RelativePath=".\transupp.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>

maketvcx.v10

@@ -0,0 +1,74 @@
+<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>{025BAC50-51B5-4FFE-BC47-3F920BB4047E}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>jpegtran</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="jpegint.h" />
+    <ClInclude Include="jpeglib.h" />
+    <ClInclude Include="jversion.h" />
+    <ClInclude Include="transupp.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="cdjpeg.c" />
+    <ClCompile Include="jpegtran.c" />
+    <ClCompile Include="rdswitch.c" />
+    <ClCompile Include="transupp.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

makewfil.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="wrjpgcom.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

makewvcp.vc9

@@ -1,133 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9,00"
-	Name="wrjpgcom"
-	ProjectGUID="{178670D7-FA7F-44A8-96C7-11B1CA14269C}"
-	RootNamespace="wrjpgcom"
-	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=".\wrjpgcom.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}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

makewvcx.v10

@@ -0,0 +1,62 @@
+<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>{B57065D4-DDDA-4668-BAF5-2D49270C973C}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>wrjpgcom</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="wrjpgcom.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

rdbmp.c

@@ -2,6 +2,7 @@
  * rdbmp.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
+ * Modified 2009-2010 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.
  *
@@ -177,10 +178,41 @@ get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
 }
 
 
+METHODDEF(JDIMENSION)
+get_32bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
+/* This version is for reading 32-bit pixels */
+{
+  bmp_source_ptr source = (bmp_source_ptr) sinfo;
+  JSAMPARRAY image_ptr;
+  register JSAMPROW inptr, outptr;
+  register JDIMENSION col;
+
+  /* Fetch next row from virtual array */
+  source->source_row--;
+  image_ptr = (*cinfo->mem->access_virt_sarray)
+    ((j_common_ptr) cinfo, source->whole_image,
+     source->source_row, (JDIMENSION) 1, FALSE);
+  /* Transfer data.  Note source values are in BGR order
+   * (even though Microsoft's own documents say the opposite).
+   */
+  inptr = image_ptr[0];
+  outptr = source->pub.buffer[0];
+  for (col = cinfo->image_width; col > 0; col--) {
+    outptr[2] = *inptr++;	/* can omit GETJSAMPLE() safely */
+    outptr[1] = *inptr++;
+    outptr[0] = *inptr++;
+    inptr++;			/* skip the 4th byte (Alpha channel) */
+    outptr += 3;
+  }
+
+  return 1;
+}
+
+
 /*
  * This method loads the image into whole_image during the first call on
  * get_pixel_rows.  The get_pixel_rows pointer is then adjusted to call
- * get_8bit_row or get_24bit_row on subsequent calls.
+ * get_8bit_row, get_24bit_row, or get_32bit_row on subsequent calls.
  */
 
 METHODDEF(JDIMENSION)
@@ -223,6 +255,9 @@ preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
   case 24:
     source->pub.get_pixel_rows = get_24bit_row;
     break;
+  case 32:
+    source->pub.get_pixel_rows = get_32bit_row;
+    break;
   default:
     ERREXIT(cinfo, JERR_BMP_BADDEPTH);
   }
@@ -251,8 +286,8 @@ start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
 			       (((INT32) UCH(array[offset+3])) << 24))
   INT32 bfOffBits;
   INT32 headerSize;
-  INT32 biWidth = 0;		/* initialize to avoid compiler warning */
+  INT32 biWidth;
-  INT32 biHeight = 0;
+  INT32 biHeight;
   unsigned int biPlanes;
   INT32 biCompression;
   INT32 biXPelsPerMeter,biYPelsPerMeter;
@@ -300,8 +335,6 @@ start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
       ERREXIT(cinfo, JERR_BMP_BADDEPTH);
       break;
     }
-    if (biPlanes != 1)
-      ERREXIT(cinfo, JERR_BMP_BADPLANES);
     break;
   case 40:
   case 64:
@@ -325,12 +358,13 @@ start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
     case 24:			/* RGB image */
       TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight);
       break;
+    case 32:			/* RGB image + Alpha channel */
+      TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight);
+      break;
     default:
       ERREXIT(cinfo, JERR_BMP_BADDEPTH);
       break;
     }
-    if (biPlanes != 1)
-      ERREXIT(cinfo, JERR_BMP_BADPLANES);
     if (biCompression != 0)
       ERREXIT(cinfo, JERR_BMP_COMPRESSED);
 
@@ -343,9 +377,14 @@ start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
     break;
   default:
     ERREXIT(cinfo, JERR_BMP_BADHEADER);
-    break;
+    return;
   }
 
+  if (biWidth <= 0 || biHeight <= 0)
+    ERREXIT(cinfo, JERR_BMP_EMPTY);
+  if (biPlanes != 1)
+    ERREXIT(cinfo, JERR_BMP_BADPLANES);
+
   /* Compute distance to bitmap data --- will adjust for colormap below */
   bPad = bfOffBits - (headerSize + 14);
 
@@ -375,6 +414,8 @@ start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
   /* Compute row width in file, including padding to 4-byte boundary */
   if (source->bits_per_pixel == 24)
     row_width = (JDIMENSION) (biWidth * 3);
+  else if (source->bits_per_pixel == 32)
+    row_width = (JDIMENSION) (biWidth * 4);
   else
     row_width = (JDIMENSION) biWidth;
   while ((row_width & 3) != 0) row_width++;

structure.txt

@@ -1,6 +1,6 @@
 IJG JPEG LIBRARY:  SYSTEM ARCHITECTURE
 
-Copyright (C) 1991-2009, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1991-2012, 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.
 
@@ -20,7 +20,7 @@ In this document, JPEG-specific terminology follows the JPEG standard:
   A "component" means a color channel, e.g., Red or Luminance.
   A "sample" is a single component value (i.e., one number in the image data).
   A "coefficient" is a frequency coefficient (a DCT transform output number).
-  A "block" is an 8x8 group of samples or coefficients.
+  A "block" is an array of samples or coefficients.
   An "MCU" (minimum coded unit) is an interleaved set of blocks of size
 	determined by the sampling factors, or a single block in a
 	noninterleaved scan.
@@ -43,13 +43,8 @@ command-line user interface and I/O routines for several uncompressed image
 formats.  This document concentrates on the library itself.
 
 We desire the library to be capable of supporting all JPEG baseline, extended
-sequential, and progressive DCT processes.  Hierarchical processes are not
+sequential, and progressive DCT processes.  The library does not support the
-supported.
+hierarchical or lossless processes defined in the standard.
-
-The library does not support the lossless (spatial) JPEG process.  Lossless
-JPEG shares little or no code with lossy JPEG, and would normally be used
-without the extensive pre- and post-processing provided by this library.
-We feel that lossless JPEG is better handled by a separate library.
 
 Within these limits, any set of compression parameters allowed by the JPEG
 spec should be readable for decompression.  (We can be more restrictive about
@@ -175,7 +170,7 @@ can be simplified a little if they work on padded data: it's not necessary to
 have special cases at the right and bottom edges.  Therefore the interface
 buffer is always an integral number of blocks wide and high, and we expect
 compression preprocessing to pad the source data properly.  Padding will occur
-only to the next block (8-sample) boundary.  In an interleaved-scan situation,
+only to the next block (N-sample) boundary.  In an interleaved-scan situation,
 additional dummy blocks may be used to fill out MCUs, but the MCU assembly and
 disassembly logic will create or discard these blocks internally.  (This is
 advantageous for speed reasons, since we avoid DCTing the dummy blocks.
@@ -350,9 +345,9 @@ The objects shown above are:
   require context rows above and below the current row group; the
   preprocessing controller is responsible for supplying these rows via proper
   buffering.  The downsampler is responsible for edge expansion at the right
-  edge (i.e., extending each sample row to a multiple of 8 samples); but the
+  edge (i.e., extending each sample row to a multiple of N samples); but the
   preprocessing controller is responsible for vertical edge expansion (i.e.,
-  duplicating the bottom sample row as needed to make a multiple of 8 rows).
+  duplicating the bottom sample row as needed to make a multiple of N rows).
 
 * Coefficient controller: buffer controller for the DCT-coefficient data.
   This controller handles MCU assembly, including insertion of dummy DCT
@@ -385,8 +380,9 @@ objects:
 
 * Data destination manager: writes the output JPEG datastream to its final
   destination (e.g., a file).  The destination manager supplied with the
-  library knows how to write to a stdio stream; for other behaviors, the
+  library knows how to write to a stdio stream or to a memory buffer;
-  surrounding application may provide its own destination manager.
+  for other behaviors, the surrounding application may provide its own
+  destination manager.
 
 * Memory manager: allocates and releases memory, controls virtual arrays
   (with backing store management, where required).
@@ -504,9 +500,9 @@ objects:
 * Marker reading: decodes JPEG markers (except for RSTn).
 
 * Data source manager: supplies the input JPEG datastream.  The source
-  manager supplied with the library knows how to read from a stdio stream;
+  manager supplied with the library knows how to read from a stdio stream
-  for other behaviors, the surrounding application may provide its own source
+  or from a memory buffer;  for other behaviors, the surrounding application
-  manager.
+  may provide its own source manager.
 
 * Memory manager: same as for compression library.
 
@@ -654,9 +650,9 @@ contain quantized coefficients everywhere outside the DCT/IDCT subsystems.
 (This latter decision may need to be revisited to support variable
 quantization a la JPEG Part 3.)
 
-Notice that the allocation unit is now a row of 8x8 blocks, corresponding to
+Notice that the allocation unit is now a row of 8x8 coefficient blocks,
-eight rows of samples.  Otherwise the structure is much the same as for
+corresponding to N rows of samples.  Otherwise the structure is much the same
-samples, and for the same reasons.
+as for samples, and for the same reasons.
 
 On machines where malloc() can't handle a request bigger than 64Kb, this data
 structure limits us to rows of less than 512 JBLOCKs, or a picture width of

transupp.c

@@ -1,7 +1,7 @@
 /*
  * transupp.c
  *
- * Copyright (C) 1997-2009, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1997-2011, 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.
  *
@@ -133,7 +133,8 @@ do_flip_h_no_crop (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
    * mirroring by changing the signs of odd-numbered columns.
    * Partial iMCUs at the right edge are left untouched.
    */
-  MCU_cols = srcinfo->image_width / (dstinfo->max_h_samp_factor * DCTSIZE);
+  MCU_cols = srcinfo->output_width /
+    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -198,7 +199,8 @@ do_flip_h (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
    * different rows of a single virtual array simultaneously.  Otherwise,
    * this is essentially the same as the routine above.
    */
-  MCU_cols = srcinfo->image_width / (dstinfo->max_h_samp_factor * DCTSIZE);
+  MCU_cols = srcinfo->output_width /
+    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -262,7 +264,8 @@ do_flip_v (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
    * of odd-numbered rows.
    * Partial iMCUs at the bottom edge are copied verbatim.
    */
-  MCU_rows = srcinfo->image_height / (dstinfo->max_v_samp_factor * DCTSIZE);
+  MCU_rows = srcinfo->output_height /
+    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -389,7 +392,8 @@ do_rot_90 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
    * at the (output) right edge properly.  They just get transposed and
    * not mirrored.
    */
-  MCU_cols = srcinfo->image_height / (dstinfo->max_h_samp_factor * DCTSIZE);
+  MCU_cols = srcinfo->output_height /
+    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -469,7 +473,8 @@ do_rot_270 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
    * at the (output) bottom edge properly.  They just get transposed and
    * not mirrored.
    */
-  MCU_rows = srcinfo->image_width / (dstinfo->max_v_samp_factor * DCTSIZE);
+  MCU_rows = srcinfo->output_width /
+    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -536,8 +541,10 @@ do_rot_180 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
   JCOEFPTR src_ptr, dst_ptr;
   jpeg_component_info *compptr;
 
-  MCU_cols = srcinfo->image_width / (dstinfo->max_h_samp_factor * DCTSIZE);
+  MCU_cols = srcinfo->output_width /
-  MCU_rows = srcinfo->image_height / (dstinfo->max_v_samp_factor * DCTSIZE);
+    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
+  MCU_rows = srcinfo->output_height /
+    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -645,8 +652,10 @@ do_transverse (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
   JCOEFPTR src_ptr, dst_ptr;
   jpeg_component_info *compptr;
 
-  MCU_cols = srcinfo->image_height / (dstinfo->max_h_samp_factor * DCTSIZE);
+  MCU_cols = srcinfo->output_height /
-  MCU_rows = srcinfo->image_width / (dstinfo->max_v_samp_factor * DCTSIZE);
+    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
+  MCU_rows = srcinfo->output_width /
+    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -762,7 +771,7 @@ jt_read_integer (const char ** strptr, JDIMENSION * result)
  * The routine returns TRUE if the spec string is valid, FALSE if not.
  *
  * The crop spec string should have the format
- *	<width>x<height>{+-}<xoffset>{+-}<yoffset>
+ *	<width>[f]x<height>[f]{+-}<xoffset>{+-}<yoffset>
  * where width, height, xoffset, and yoffset are unsigned integers.
  * Each of the elements can be omitted to indicate a default value.
  * (A weakness of this style is that it is not possible to omit xoffset
@@ -784,6 +793,10 @@ jtransform_parse_crop_spec (jpeg_transform_info *info, const char *spec)
     /* fetch width */
     if (! jt_read_integer(&spec, &info->crop_width))
       return FALSE;
+    if (*spec == 'f' || *spec == 'F') {
+      spec++;
+      info->crop_width_set = JCROP_FORCE;
+    } else
       info->crop_width_set = JCROP_POS;
   }
   if (*spec == 'x' || *spec == 'X') {
@@ -791,6 +804,10 @@ jtransform_parse_crop_spec (jpeg_transform_info *info, const char *spec)
     spec++;
     if (! jt_read_integer(&spec, &info->crop_height))
       return FALSE;
+    if (*spec == 'f' || *spec == 'F') {
+      spec++;
+      info->crop_height_set = JCROP_FORCE;
+    } else
       info->crop_height_set = JCROP_POS;
   }
   if (*spec == '+' || *spec == '-') {
@@ -822,10 +839,10 @@ trim_right_edge (jpeg_transform_info *info, JDIMENSION full_width)
 {
   JDIMENSION MCU_cols;
 
-  MCU_cols = info->output_width / (info->max_h_samp_factor * DCTSIZE);
+  MCU_cols = info->output_width / info->iMCU_sample_width;
   if (MCU_cols > 0 && info->x_crop_offset + MCU_cols ==
-      full_width / (info->max_h_samp_factor * DCTSIZE))
+      full_width / info->iMCU_sample_width)
-    info->output_width = MCU_cols * (info->max_h_samp_factor * DCTSIZE);
+    info->output_width = MCU_cols * info->iMCU_sample_width;
 }
 
 LOCAL(void)
@@ -833,10 +850,10 @@ trim_bottom_edge (jpeg_transform_info *info, JDIMENSION full_height)
 {
   JDIMENSION MCU_rows;
 
-  MCU_rows = info->output_height / (info->max_v_samp_factor * DCTSIZE);
+  MCU_rows = info->output_height / info->iMCU_sample_height;
   if (MCU_rows > 0 && info->y_crop_offset + MCU_rows ==
-      full_height / (info->max_v_samp_factor * DCTSIZE))
+      full_height / info->iMCU_sample_height)
-    info->output_height = MCU_rows * (info->max_v_samp_factor * DCTSIZE);
+    info->output_height = MCU_rows * info->iMCU_sample_height;
 }
 
 
@@ -852,59 +869,89 @@ trim_bottom_edge (jpeg_transform_info *info, JDIMENSION full_height)
  * Hence, this routine must be called after jpeg_read_header (which reads
  * the image dimensions) and before jpeg_read_coefficients (which realizes
  * the source's virtual arrays).
+ *
+ * This function returns FALSE right away if -perfect is given
+ * and transformation is not perfect.  Otherwise returns TRUE.
  */
 
-GLOBAL(void)
+GLOBAL(boolean)
 jtransform_request_workspace (j_decompress_ptr srcinfo,
 			      jpeg_transform_info *info)
 {
-  jvirt_barray_ptr *coef_arrays = NULL;
+  jvirt_barray_ptr *coef_arrays;
   boolean need_workspace, transpose_it;
   jpeg_component_info *compptr;
-  JDIMENSION xoffset, yoffset, width_in_iMCUs, height_in_iMCUs;
+  JDIMENSION xoffset, yoffset;
+  JDIMENSION width_in_iMCUs, height_in_iMCUs;
   JDIMENSION width_in_blocks, height_in_blocks;
   int ci, h_samp_factor, v_samp_factor;
 
   /* Determine number of components in output image */
   if (info->force_grayscale &&
       srcinfo->jpeg_color_space == JCS_YCbCr &&
-      srcinfo->num_components == 3) {
+      srcinfo->num_components == 3)
     /* We'll only process the first component */
     info->num_components = 1;
-  } else {
+  else
     /* Process all the components */
     info->num_components = srcinfo->num_components;
+
+  /* Compute output image dimensions and related values. */
+  jpeg_core_output_dimensions(srcinfo);
+
+  /* Return right away if -perfect is given and transformation is not perfect.
+   */
+  if (info->perfect) {
+    if (info->num_components == 1) {
+      if (!jtransform_perfect_transform(srcinfo->output_width,
+	  srcinfo->output_height,
+	  srcinfo->min_DCT_h_scaled_size,
+	  srcinfo->min_DCT_v_scaled_size,
+	  info->transform))
+	return FALSE;
+    } else {
+      if (!jtransform_perfect_transform(srcinfo->output_width,
+	  srcinfo->output_height,
+	  srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size,
+	  srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size,
+	  info->transform))
+	return FALSE;
     }
+  }
+
   /* If there is only one output component, force the iMCU size to be 1;
    * else use the source iMCU size.  (This allows us to do the right thing
    * when reducing color to grayscale, and also provides a handy way of
    * cleaning up "funny" grayscale images whose sampling factors are not 1x1.)
    */
-
   switch (info->transform) {
   case JXFORM_TRANSPOSE:
   case JXFORM_TRANSVERSE:
   case JXFORM_ROT_90:
   case JXFORM_ROT_270:
-    info->output_width = srcinfo->image_height;
+    info->output_width = srcinfo->output_height;
-    info->output_height = srcinfo->image_width;
+    info->output_height = srcinfo->output_width;
     if (info->num_components == 1) {
-      info->max_h_samp_factor = 1;
+      info->iMCU_sample_width = srcinfo->min_DCT_v_scaled_size;
-      info->max_v_samp_factor = 1;
+      info->iMCU_sample_height = srcinfo->min_DCT_h_scaled_size;
     } else {
-      info->max_h_samp_factor = srcinfo->max_v_samp_factor;
+      info->iMCU_sample_width =
-      info->max_v_samp_factor = srcinfo->max_h_samp_factor;
+	srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size;
+      info->iMCU_sample_height =
+	srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size;
     }
     break;
   default:
-    info->output_width = srcinfo->image_width;
+    info->output_width = srcinfo->output_width;
-    info->output_height = srcinfo->image_height;
+    info->output_height = srcinfo->output_height;
     if (info->num_components == 1) {
-      info->max_h_samp_factor = 1;
+      info->iMCU_sample_width = srcinfo->min_DCT_h_scaled_size;
-      info->max_v_samp_factor = 1;
+      info->iMCU_sample_height = srcinfo->min_DCT_v_scaled_size;
     } else {
-      info->max_h_samp_factor = srcinfo->max_h_samp_factor;
+      info->iMCU_sample_width =
-      info->max_v_samp_factor = srcinfo->max_v_samp_factor;
+	srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size;
+      info->iMCU_sample_height =
+	srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size;
     }
     break;
   }
@@ -941,13 +988,19 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
     else
       yoffset = info->crop_yoffset;
     /* Now adjust so that upper left corner falls at an iMCU boundary */
+    if (info->crop_width_set == JCROP_FORCE)
+      info->output_width = info->crop_width;
+    else
       info->output_width =
-      info->crop_width + (xoffset % (info->max_h_samp_factor * DCTSIZE));
+        info->crop_width + (xoffset % info->iMCU_sample_width);
+    if (info->crop_height_set == JCROP_FORCE)
+      info->output_height = info->crop_height;
+    else
       info->output_height =
-      info->crop_height + (yoffset % (info->max_v_samp_factor * DCTSIZE));
+        info->crop_height + (yoffset % info->iMCU_sample_height);
     /* Save x/y offsets measured in iMCUs */
-    info->x_crop_offset = xoffset / (info->max_h_samp_factor * DCTSIZE);
+    info->x_crop_offset = xoffset / info->iMCU_sample_width;
-    info->y_crop_offset = yoffset / (info->max_v_samp_factor * DCTSIZE);
+    info->y_crop_offset = yoffset / info->iMCU_sample_height;
   } else {
     info->x_crop_offset = 0;
     info->y_crop_offset = 0;
@@ -966,14 +1019,14 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
     break;
   case JXFORM_FLIP_H:
     if (info->trim)
-      trim_right_edge(info, srcinfo->image_width);
+      trim_right_edge(info, srcinfo->output_width);
     if (info->y_crop_offset != 0)
       need_workspace = TRUE;
     /* do_flip_h_no_crop doesn't need a workspace array */
     break;
   case JXFORM_FLIP_V:
     if (info->trim)
-      trim_bottom_edge(info, srcinfo->image_height);
+      trim_bottom_edge(info, srcinfo->output_height);
     /* Need workspace arrays having same dimensions as source image. */
     need_workspace = TRUE;
     break;
@@ -985,8 +1038,8 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
     break;
   case JXFORM_TRANSVERSE:
     if (info->trim) {
-      trim_right_edge(info, srcinfo->image_height);
+      trim_right_edge(info, srcinfo->output_height);
-      trim_bottom_edge(info, srcinfo->image_width);
+      trim_bottom_edge(info, srcinfo->output_width);
     }
     /* Need workspace arrays having transposed dimensions. */
     need_workspace = TRUE;
@@ -994,22 +1047,22 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
     break;
   case JXFORM_ROT_90:
     if (info->trim)
-      trim_right_edge(info, srcinfo->image_height);
+      trim_right_edge(info, srcinfo->output_height);
     /* Need workspace arrays having transposed dimensions. */
     need_workspace = TRUE;
     transpose_it = TRUE;
     break;
   case JXFORM_ROT_180:
     if (info->trim) {
-      trim_right_edge(info, srcinfo->image_width);
+      trim_right_edge(info, srcinfo->output_width);
-      trim_bottom_edge(info, srcinfo->image_height);
+      trim_bottom_edge(info, srcinfo->output_height);
     }
     /* Need workspace arrays having same dimensions as source image. */
     need_workspace = TRUE;
     break;
   case JXFORM_ROT_270:
     if (info->trim)
-      trim_bottom_edge(info, srcinfo->image_width);
+      trim_bottom_edge(info, srcinfo->output_width);
     /* Need workspace arrays having transposed dimensions. */
     need_workspace = TRUE;
     transpose_it = TRUE;
@@ -1026,10 +1079,10 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
 		SIZEOF(jvirt_barray_ptr) * info->num_components);
     width_in_iMCUs = (JDIMENSION)
       jdiv_round_up((long) info->output_width,
-		    (long) (info->max_h_samp_factor * DCTSIZE));
+		    (long) info->iMCU_sample_width);
     height_in_iMCUs = (JDIMENSION)
       jdiv_round_up((long) info->output_height,
-		    (long) (info->max_v_samp_factor * DCTSIZE));
+		    (long) info->iMCU_sample_height);
     for (ci = 0; ci < info->num_components; ci++) {
       compptr = srcinfo->comp_info + ci;
       if (info->num_components == 1) {
@@ -1048,9 +1101,11 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
 	((j_common_ptr) srcinfo, JPOOL_IMAGE, FALSE,
 	 width_in_blocks, height_in_blocks, (JDIMENSION) v_samp_factor);
     }
-  }
-
     info->workspace_coef_arrays = coef_arrays;
+  } else
+    info->workspace_coef_arrays = NULL;
+
+  return TRUE;
 }
 
 
@@ -1062,8 +1117,17 @@ transpose_critical_parameters (j_compress_ptr dstinfo)
   int tblno, i, j, ci, itemp;
   jpeg_component_info *compptr;
   JQUANT_TBL *qtblptr;
+  JDIMENSION jtemp;
   UINT16 qtemp;
 
+  /* Transpose image dimensions */
+  jtemp = dstinfo->image_width;
+  dstinfo->image_width = dstinfo->image_height;
+  dstinfo->image_height = jtemp;
+  itemp = dstinfo->min_DCT_h_scaled_size;
+  dstinfo->min_DCT_h_scaled_size = dstinfo->min_DCT_v_scaled_size;
+  dstinfo->min_DCT_v_scaled_size = itemp;
+
   /* Transpose sampling factors */
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -1296,10 +1360,10 @@ jtransform_adjust_parameters (j_decompress_ptr srcinfo,
   }
 
   /* Correct the destination's image dimensions as necessary
-   * for crop and rotate/flip operations.
+   * for rotate/flip, resize, and crop operations.
    */
-  dstinfo->image_width = info->output_width;
+  dstinfo->jpeg_width = info->output_width;
-  dstinfo->image_height = info->output_height;
+  dstinfo->jpeg_height = info->output_height;
 
   /* Transpose destination image parameters */
   switch (info->transform) {
@@ -1326,12 +1390,12 @@ jtransform_adjust_parameters (j_decompress_ptr srcinfo,
     /* Suppress output of JFIF marker */
     dstinfo->write_JFIF_header = FALSE;
     /* Adjust Exif image parameters */
-    if (dstinfo->image_width != srcinfo->image_width ||
+    if (dstinfo->jpeg_width != srcinfo->image_width ||
-	dstinfo->image_height != srcinfo->image_height)
+	dstinfo->jpeg_height != srcinfo->image_height)
       /* Align data segment to start of TIFF structure for parsing */
       adjust_exif_parameters(srcinfo->marker_list->data + 6,
 	srcinfo->marker_list->data_length - 6,
-	dstinfo->image_width, dstinfo->image_height);
+	dstinfo->jpeg_width, dstinfo->jpeg_height);
   }
 
   /* Return the appropriate output data set */
@@ -1415,8 +1479,8 @@ jtransform_execute_transform (j_decompress_ptr srcinfo,
  * (after reading source header):
  *   image_width = cinfo.image_width
  *   image_height = cinfo.image_height
- *   MCU_width = cinfo.max_h_samp_factor * DCTSIZE
+ *   MCU_width = cinfo.max_h_samp_factor * cinfo.block_size
- *   MCU_height = cinfo.max_v_samp_factor * DCTSIZE
+ *   MCU_height = cinfo.max_v_samp_factor * cinfo.block_size
  * Result:
  *   TRUE = perfect transformation possible
  *   FALSE = perfect transformation not possible

transupp.h

@@ -1,7 +1,7 @@
 /*
  * transupp.h
  *
- * Copyright (C) 1997-2001, Thomas G. Lane.
+ * Copyright (C) 1997-2011, 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.
  *
@@ -57,10 +57,16 @@
  * corner up and/or left to make it so, simultaneously increasing the region
  * dimensions to keep the lower right crop corner unchanged.  (Thus, the
  * output image covers at least the requested region, but may cover more.)
+ * The adjustment of the region dimensions may be optionally disabled.
  *
- * If both crop and a rotate/flip transform are requested, the crop is applied
+ * We also provide a lossless-resize option, which is kind of a lossless-crop
- * last --- that is, the crop region is specified in terms of the destination
+ * operation in the DCT coefficient block domain - it discards higher-order
- * image.
+ * coefficients and losslessly preserves lower-order coefficients of a
+ * sub-block.
+ *
+ * Rotate/flip transform, resize, and crop can be requested together in a
+ * single invocation.  The crop is applied last --- that is, the crop region
+ * is specified in terms of the destination image after transform/resize.
  *
  * We also offer a "force to grayscale" option, which simply discards the
  * chrominance channels of a YCbCr image.  This is lossless in the sense that
@@ -101,13 +107,15 @@ typedef enum {
 
 /*
  * Codes for crop parameters, which can individually be unspecified,
- * positive, or negative.  (Negative width or height makes no sense, though.)
+ * positive or negative for xoffset or yoffset,
+ * positive or forced for width or height.
  */
 
 typedef enum {
         JCROP_UNSET,
         JCROP_POS,
-	JCROP_NEG
+        JCROP_NEG,
+        JCROP_FORCE
 } JCROP_CODE;
 
 /*
@@ -128,9 +136,9 @@ typedef struct {
    * These can be filled in by jtransform_parse_crop_spec().
    */
   JDIMENSION crop_width;	/* Width of selected region */
-  JCROP_CODE crop_width_set;
+  JCROP_CODE crop_width_set;	/* (forced disables adjustment) */
   JDIMENSION crop_height;	/* Height of selected region */
-  JCROP_CODE crop_height_set;
+  JCROP_CODE crop_height_set;	/* (forced disables adjustment) */
   JDIMENSION crop_xoffset;	/* X offset of selected region */
   JCROP_CODE crop_xoffset_set;	/* (negative measures from right edge) */
   JDIMENSION crop_yoffset;	/* Y offset of selected region */
@@ -143,8 +151,8 @@ typedef struct {
   JDIMENSION output_height;
   JDIMENSION x_crop_offset;	/* destination crop offsets measured in iMCUs */
   JDIMENSION y_crop_offset;
-  int max_h_samp_factor;	/* destination iMCU size */
+  int iMCU_sample_width;	/* destination iMCU size */
-  int max_v_samp_factor;
+  int iMCU_sample_height;
 } jpeg_transform_info;
 
 
@@ -154,7 +162,7 @@ typedef struct {
 EXTERN(boolean) jtransform_parse_crop_spec
 	JPP((jpeg_transform_info *info, const char *spec));
 /* Request any required workspace */
-EXTERN(void) jtransform_request_workspace
+EXTERN(boolean) jtransform_request_workspace
 	JPP((j_decompress_ptr srcinfo, jpeg_transform_info *info));
 /* Adjust output image parameters */
 EXTERN(jvirt_barray_ptr *) jtransform_adjust_parameters

usage.txt

@@ -77,6 +77,12 @@ The basic command line switches for cjpeg are:
 			saying -grayscale, you'll get a smaller JPEG file that
 			takes less time to process.
 
+	-rgb		Create RGB JPEG file.
+			Using this switch suppresses the conversion from RGB
+			colorspace input to the default YCbCr JPEG colorspace.
+			Use this switch in combination with the -block N
+			switch (see below) for lossless JPEG coding.
+
 	-optimize	Perform optimization of entropy encoding parameters.
 			Without this, default encoding parameters are used.
 			-optimize usually makes the JPEG file a little smaller,
@@ -87,8 +93,9 @@ The basic command line switches for cjpeg are:
 	-progressive	Create progressive JPEG file (see below).
 
 	-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
+			supported scale factors are M/N with all N from 1 to
-			16.
+			16, where M is the destination DCT size, which is 8 by
+			default (see -block N switch below).
 
 	-targa		Input file is Targa format.  Targa files that contain
 			an "identification" field will not be automatically
@@ -137,7 +144,7 @@ behaviour in case that only one parameter is given, which is then used for
 both luminance and chrominance (slots 0 and 1).  More or custom quantization
 tables can be set with -qtables and assigned to components with -qslots
 parameter (see the "wizard" switches below).
-CAUTION: You must explicitely add -sample 1x1 for efficient separate color
+CAUTION: You must explicitly add -sample 1x1 for efficient separate color
 quality selection, since the default value used by library is 2x2!
 
 The -progressive switch creates a "progressive JPEG" file.  In this type of
@@ -150,6 +157,24 @@ file size is about the same --- often a little smaller.
 
 Switches for advanced users:
 
+	-arithmetic	Use arithmetic coding.  CAUTION: arithmetic coded JPEG
+			is not yet widely implemented, so many decoders will
+			be unable to view an arithmetic coded JPEG file at
+			all.
+
+	-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).
+			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.
+
 	-dct int	Use integer DCT method (default).
 	-dct fast	Use fast integer DCT (less accurate).
 	-dct float	Use floating-point DCT method.
@@ -196,11 +221,6 @@ factor will visibly blur the image, however.
 
 Switches for wizards:
 
-	-arithmetic	Use arithmetic coding.  CAUTION: arithmetic coded JPEG
-			is not yet widely implemented, so many decoders will
-			be unable to view an arithmetic coded JPEG file at
-			all.
-
 	-baseline	Force baseline-compatible quantization tables to be
 			generated.  This clamps quantization values to 8 bits
 			even at low quality settings.  (This switch is poorly
@@ -245,14 +265,15 @@ The basic command line switches for djpeg are:
 			djpeg runs noticeably faster in this mode.
 
 	-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
+			supported scale factors are M/N with all M from 1 to
-			16.  If the /N part is omitted, then M specifies the
+			16, where N is the source DCT size, which is 8 for
-			DCT scaled size to be applied on the given input,
+			baseline JPEG.  If the /N part is omitted, then M
-			which is currently equivalent to M/8 scaling, since
+			specifies the DCT scaled size to be applied on the
-			the source DCT size is currently always 8.
+			given input.  For baseline JPEG this is equivalent to
-			Scaling is handy if the image is larger than your
+			M/8 scaling, since the source DCT size for baseline
-			screen; also, djpeg runs much faster when scaling
+			JPEG is 8.  Scaling is handy if the image is larger
-			down the output.
+			than your screen; also, djpeg runs much faster when
+			scaling down the output.
 
 	-bmp		Select BMP output format (Windows flavor).  8-bit
 			colormapped format is emitted if -colors or -grayscale
@@ -444,9 +465,9 @@ To specify the coded JPEG representation used in the output file,
 jpegtran accepts a subset of the switches recognized by cjpeg:
 	-optimize	Perform optimization of entropy encoding parameters.
 	-progressive	Create progressive JPEG file.
+	-arithmetic	Use arithmetic coding.
 	-restart N	Emit a JPEG restart marker every N MCU rows, or every
 			N MCU blocks if "B" is attached to the number.
-	-arithmetic	Use arithmetic coding.
 	-scans file	Use the scan script given in the specified text file.
 See the previous discussion of cjpeg for more details about these switches.
 If you specify none of these switches, you get a plain baseline-JPEG output
@@ -507,7 +528,8 @@ The image can be losslessly cropped by giving the switch:
 	-crop WxH+X+Y	Crop to a rectangular subarea of width W, height H
 			starting at point X,Y.
 
-Another not-strictly-lossless transformation switch is:
+Other not-strictly-lossless transformation switches are:
+
 	-grayscale	Force grayscale output.
 This option discards the chrominance channels if the input image is YCbCr
 (ie, a standard color JPEG), resulting in a grayscale JPEG file.  The
@@ -518,6 +540,16 @@ 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.)
 
+	-scale M/N	Scale the output image by a factor M/N.
+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.  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.
+
 jpegtran also recognizes these switches that control what to do with "extra"
 markers, such as comment blocks:
 	-copy none	Copy no extra markers from source file.  This setting