Now that the TurboJPEG API is reporting libjpeg warnings as errors, an "Invalid SOS parameters for sequential JPEG" warning surfaced in tjDecodeYUV*(). This was caused by the Se member of jpeg_decompress_struct being set to 0 (it is normally set to a non-zero value when the start-of-scan markers are read, but there are no SOS markers in this case, because we're not actually decompressing a JPEG file.)

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.4.x@1564 632fc199-4ca6-4c93-a231-07263d6284db

BUILDING.txt

@@ -0,0 +1,884 @@
+*******************************************************************************
+**     Building on Un*x Platforms (including Cygwin and OS X)
+*******************************************************************************
+
+
+==================
+Build Requirements
+==================
+
+-- autoconf 2.56 or later
+-- automake 1.7 or later
+-- libtool 1.4 or later
+   * If using Xcode 4.3 or later on OS X, autoconf and automake are no longer
+     provided.  The easiest way to obtain them is from MacPorts
+     (http://www.macports.org/).
+
+-- NASM (if building x86 or x86-64 SIMD extensions)
+   * 0.98, or 2.01 or later is required for a 32-bit build
+   * NASM 2.00 or later is required for a 64-bit build
+   * NASM 2.07 or later is required for a 64-bit build on OS X.  This can be
+     obtained from MacPorts (http://www.macports.org/).
+
+   The binary RPMs released by the NASM project do not work on older Linux
+   systems, such as Red Hat Enterprise Linux 4.  On such systems, you can
+   easily build and install NASM from a source RPM by downloading one of the
+   SRPMs from
+
+   http://www.nasm.us/pub/nasm/releasebuilds
+
+   and executing the following as root:
+
+     ARCH=`uname -m`
+     rpmbuild --rebuild nasm-{version}.src.rpm
+     rpm -Uvh /usr/src/redhat/RPMS/$ARCH/nasm-{version}.$ARCH.rpm
+
+   NOTE: the NASM build will fail if texinfo is not installed.
+
+-- GCC v4.1 or later recommended for best performance
+   * Beginning with Xcode 4, Apple stopped distributing GCC and switched to
+     the LLVM compiler.  Xcode v4.0 through v4.6 provides a GCC front end
+     called LLVM-GCC.  Unfortunately, as of this writing, neither LLVM-GCC nor
+     the LLVM (clang) compiler produces optimal performance with libjpeg-turbo.
+     Building libjpeg-turbo with LLVM-GCC v4.2 results in a 10% performance
+     degradation when compressing using 64-bit code, relative to building
+     libjpeg-turbo with GCC v4.2.  Building libjpeg-turbo with LLVM (clang)
+     results in a 20% performance degradation when compressing using 64-bit
+     code, relative to building libjpeg-turbo with GCC v4.2.  If you are
+     running Snow Leopard or earlier, it is suggested that you continue to use
+     Xcode v3.2.6, which provides GCC v4.2.  If you are using Lion or later, it
+     is suggested that you install Apple GCC v4.2 through MacPorts.
+
+-- If building the TurboJPEG Java wrapper, JDK or OpenJDK 1.5 or later is
+   required.  Some systems, such as Solaris 10 and later and Red Hat Enterprise
+   Linux 5 and later, have this pre-installed.  On OS X 10.5 and later, it will
+   be necessary to install the Java Developer Package, which can be downloaded
+   from http://developer.apple.com/downloads (Apple ID required.)  For systems
+   that do not have a JDK installed, you can obtain the Oracle Java Development
+   Kit from http://www.java.com.
+
+
+==================
+Out-of-Tree Builds
+==================
+
+Binary objects, libraries, and executables are generated in the same directory
+from which configure was executed (the "binary directory"), and this directory
+need not necessarily be the same as the libjpeg-turbo source directory.  You
+can create multiple independent binary directories, in which different versions
+of libjpeg-turbo can be built from the same source tree using different
+compilers or settings.  In the sections below, {build_directory} refers to the
+binary directory, whereas {source_directory} refers to the libjpeg-turbo source
+directory.  For in-tree builds, these directories are the same.
+
+
+======================
+Building libjpeg-turbo
+======================
+
+The following procedure will build libjpeg-turbo on Linux, FreeBSD, Cygwin, and
+Solaris/x86 systems (on Solaris, this generates a 32-bit library.  See below
+for 64-bit build instructions.)
+
+  cd {source_directory}
+  autoreconf -fiv
+  cd {build_directory}
+  sh {source_directory}/configure [additional configure flags]
+  make
+
+NOTE: Running autoreconf in the source directory is usually only necessary if
+building libjpeg-turbo from the SVN repository.
+
+This will generate the following files under .libs/
+
+  libjpeg.a
+      Static link library for the libjpeg API
+
+  libjpeg.so.{version} (Linux, Unix)
+  libjpeg.{version}.dylib (OS X)
+  cygjpeg-{version}.dll (Cygwin)
+      Shared library for the libjpeg API
+
+  By default, {version} is 62.1.0, 7.1.0, or 8.0.2, depending on whether
+  libjpeg v6b (default), v7, or v8 emulation is enabled.  If using Cygwin,
+  {version} is 62, 7, or 8.
+
+  libjpeg.so (Linux, Unix)
+  libjpeg.dylib (OS X)
+      Development symlink for the libjpeg API
+
+  libjpeg.dll.a (Cygwin)
+      Import library for the libjpeg API
+
+  libturbojpeg.a
+      Static link library for the TurboJPEG API
+
+  libturbojpeg.so.0.1.0 (Linux, Unix)
+  libturbojpeg.0.1.0.dylib (OS X)
+  cygturbojpeg-0.dll (Cygwin)
+      Shared library for the TurboJPEG API
+
+  libturbojpeg.so (Linux, Unix)
+  libturbojpeg.dylib (OS X)
+      Development symlink for the TurboJPEG API
+
+  libturbojpeg.dll.a (Cygwin)
+      Import library for the TurboJPEG API
+
+
+libjpeg v7 or v8 API/ABI Emulation
+----------------------------------
+
+Add --with-jpeg7 to the configure command line to build a version of
+libjpeg-turbo that is API/ABI-compatible with libjpeg v7.  Add --with-jpeg8 to
+the configure command to build a version of libjpeg-turbo that is
+API/ABI-compatible with libjpeg v8.  See README-turbo.txt for more information
+on libjpeg v7 and v8 emulation.
+
+
+In-Memory Source/Destination Managers
+-------------------------------------
+
+When using libjpeg v6b or v7 API/ABI emulation, add --without-mem-srcdst to the
+configure command line to build a version of libjpeg-turbo that lacks the
+jpeg_mem_src() and jpeg_mem_dest() functions.  These functions were not part of
+the original libjpeg v6b and v7 APIs, so removing them ensures strict
+conformance with those APIs.  See README-turbo.txt for more information.
+
+
+Arithmetic Coding Support
+-------------------------
+
+Since the patent on arithmetic coding has expired, this functionality has been
+included in this release of libjpeg-turbo.  libjpeg-turbo's implementation is
+based on the implementation in libjpeg v8, but it works when emulating libjpeg
+v7 or v6b as well.  The default is to enable both arithmetic encoding and
+decoding, but those who have philosophical objections to arithmetic coding can
+add --without-arith-enc or --without-arith-dec to the configure command line to
+disable encoding or decoding (respectively.)
+
+
+TurboJPEG Java Wrapper
+----------------------
+Add --with-java to the configure command line to incorporate an optional Java
+Native Interface wrapper into the TurboJPEG shared library and build the Java
+front-end classes to support it.  This allows the TurboJPEG shared library to
+be used directly from Java applications.  See java/README for more details.
+
+You can set the JAVAC, JAR, and JAVA configure variables to specify
+alternate commands for javac, jar, and java (respectively.)  You can also
+set the JAVACFLAGS configure variable to specify arguments that should be
+passed to the Java compiler when building the front-end classes, and JNI_CFLAGS
+to specify arguments that should be passed to the C compiler when building the
+JNI wrapper.  Run 'configure --help' for more details.
+
+
+========================
+Installing libjpeg-turbo
+========================
+
+If you intend to install these libraries and the associated header files, then
+replace 'make' in the instructions above with
+
+  make install prefix={base dir} libdir={library directory}
+
+For example,
+
+  make install prefix=/usr/local libdir=/usr/local/lib64
+
+will install the header files in /usr/local/include and the library files in
+/usr/local/lib64.  If 'prefix' and 'libdir' are not specified, then the default
+is to install the header files in /opt/libjpeg-turbo/include and the library
+files in /opt/libjpeg-turbo/lib32 (32-bit) or /opt/libjpeg-turbo/lib64
+(64-bit.)
+
+NOTE: You can specify a prefix of /usr and a libdir of, for instance,
+/usr/lib64 to overwrite the system's version of libjpeg.  If you do this,
+however, then be sure to BACK UP YOUR SYSTEM'S INSTALLATION OF LIBJPEG before
+overwriting it.  It is recommended that you instead install libjpeg-turbo into
+a non-system directory and manipulate the LD_LIBRARY_PATH or create symlinks
+to force applications to use libjpeg-turbo instead of libjpeg.  See
+README-turbo.txt for more information.
+
+
+=============
+Build Recipes
+=============
+
+
+32-bit Build on 64-bit Linux
+----------------------------
+
+Add
+
+  --host i686-pc-linux-gnu CFLAGS='-O3 -m32' LDFLAGS=-m32
+
+to the configure command line.
+
+
+64-bit Build on 64-bit OS X
+---------------------------
+
+Add
+
+  --host x86_64-apple-darwin NASM=/opt/local/bin/nasm
+
+to the configure command line.  NASM 2.07 or later from MacPorts must be
+installed.
+
+
+32-bit Build on 64-bit OS X
+---------------------------
+
+Add
+
+  --host i686-apple-darwin CFLAGS='-O3 -m32' LDFLAGS=-m32
+
+to the configure command line.
+
+
+64-bit Backward-Compatible Build on 64-bit OS X
+-----------------------------------------------
+
+Add
+
+  --host x86_64-apple-darwin NASM=/opt/local/bin/nasm \
+  CFLAGS='-isysroot /Developer/SDKs/MacOSX10.5.sdk \
+    -mmacosx-version-min=10.5 -O3' \
+    LDFLAGS='-isysroot /Developer/SDKs/MacOSX10.5.sdk \
+    -mmacosx-version-min=10.5'
+
+to the configure command line.  The OS X 10.5 SDK, and NASM 2.07 or later from
+MacPorts, must be installed.
+
+
+32-bit Backward-Compatible Build on OS X
+----------------------------------------
+
+Add
+
+  --host i686-apple-darwin \
+    CFLAGS='-isysroot /Developer/SDKs/MacOSX10.5.sdk \
+    -mmacosx-version-min=10.5 -O3 -m32' \
+    LDFLAGS='-isysroot /Developer/SDKs/MacOSX10.5.sdk \
+    -mmacosx-version-min=10.5 -m32'
+
+to the configure command line.  The OS X 10.5 SDK must be installed.
+
+
+64-bit Library Build on 64-bit Solaris
+--------------------------------------
+
+Add
+
+  --host x86_64-pc-solaris CFLAGS='-O3 -m64' LDFLAGS=-m64
+
+to the configure command line.
+
+
+32-bit Build on 64-bit FreeBSD
+------------------------------
+
+Add
+
+  --host i386-unknown-freebsd CC='gcc -B /usr/lib32' CFLAGS='-O3 -m32' \
+    LDFLAGS='-B/usr/lib32'
+
+to the configure command line.  NASM 2.07 or later from FreeBSD ports must be
+installed.
+
+
+Oracle Solaris Studio
+---------------------
+
+Add
+
+  CC=cc
+
+to the configure command line.  libjpeg-turbo will automatically be built with
+the maximum optimization level (-xO5) unless you override CFLAGS.
+
+To build a 64-bit version of libjpeg-turbo using Oracle Solaris Studio, add
+
+  --host x86_64-pc-solaris CC=cc CFLAGS='-xO5 -m64' LDFLAGS=-m64
+
+to the configure command line.
+
+
+MinGW Build on Cygwin
+---------------------
+
+Use CMake (see recipes below)
+
+
+===========
+ARM Support
+===========
+
+This release of libjpeg-turbo can use ARM NEON SIMD instructions to accelerate
+JPEG compression/decompression by approximately 2-4x on ARMv7 and later
+platforms.  If libjpeg-turbo is configured on an ARM Linux platform, then the
+build system will automatically include the NEON SIMD routines, if they are
+supported.  Build instructions for other ARM-based platforms follow.
+
+
+Building libjpeg-turbo for iOS
+------------------------------
+
+iOS platforms, such as the iPhone and iPad, use ARM processors, some of which
+support NEON instructions.  Additional steps are required in order to build
+libjpeg-turbo for these platforms.
+
+Additional build requirements:
+
+  gas-preprocessor.pl
+  (https://sourceforge.net/p/libjpeg-turbo/code/HEAD/tree/gas-preprocessor)
+  should be installed in your PATH.
+
+
+ARM 32-bit Build (Xcode 4.6.x and earlier, LLVM-GCC):
+
+Set the following shell variables for simplicity:
+
+  Xcode 4.2 and earlier:
+  IOS_PLATFORMDIR=/Developer/Platforms/iPhoneOS.platform
+  Xcode 4.3 and later:
+  IOS_PLATFORMDIR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform
+
+  IOS_SYSROOT=$IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS*.sdk
+  IOS_GCC=$IOS_PLATFORMDIR/Developer/usr/bin/arm-apple-darwin10-llvm-gcc-4.2
+
+  ARMv6 (code will run on all iOS devices, not SIMD-accelerated):
+  [NOTE: Requires Xcode 4.4.x or earlier]
+  IOS_CFLAGS="-march=armv6 -mcpu=arm1176jzf-s -mfpu=vfp"
+
+  ARMv7 (code will run on iPhone 3GS-4S/iPad 1st-3rd Generation and newer):
+  IOS_CFLAGS="-march=armv7 -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon"
+
+  ARMv7s (code will run on iPhone 5/iPad 4th Generation and newer):
+  [NOTE: Requires Xcode 4.5 or later]
+  IOS_CFLAGS="-march=armv7s -mcpu=swift -mtune=swift -mfpu=neon"
+
+Follow the procedure under "Building libjpeg-turbo" above, adding
+
+  --host arm-apple-darwin10 \
+    CC="$IOS_GCC" LD="$IOS_GCC" \
+    CFLAGS="-mfloat-abi=softfp -isysroot $IOS_SYSROOT -O3 $IOS_CFLAGS" \
+    LDFLAGS="-mfloat-abi=softfp -isysroot $IOS_SYSROOT $IOS_CFLAGS"
+
+to the configure command line.
+
+
+ARM 32-bit Build (Xcode 5.0.x and later, Clang):
+
+Set the following shell variables for simplicity:
+
+  IOS_PLATFORMDIR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform
+  IOS_SYSROOT=$IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS*.sdk
+  IOS_GCC=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
+
+  ARMv7 (code will run on iPhone 3GS-4S/iPad 1st-3rd Generation and newer):
+  IOS_CFLAGS="-arch armv7"
+
+  ARMv7s (code will run on iPhone 5/iPad 4th Generation and newer):
+  IOS_CFLAGS="-arch armv7s"
+
+Follow the procedure under "Building libjpeg-turbo" above, adding
+
+  --host arm-apple-darwin10 \
+    CC="$IOS_GCC" LD="$IOS_GCC" \
+    CFLAGS="-mfloat-abi=softfp -isysroot $IOS_SYSROOT -O3 $IOS_CFLAGS" \
+    LDFLAGS="-mfloat-abi=softfp -isysroot $IOS_SYSROOT $IOS_CFLAGS" \
+    CCASFLAGS="-no-integrated-as $IOS_CFLAGS"
+
+to the configure command line.
+
+
+ARMv8 64-bit Build (Xcode 5.0.x and later, Clang):
+
+Code will run on iPhone 5S/iPad Mini 2/iPad Air and newer.
+
+Set the following shell variables for simplicity:
+
+  IOS_PLATFORMDIR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform
+  IOS_SYSROOT=$IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS*.sdk
+  IOS_GCC=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
+  IOS_CFLAGS="-arch arm64"
+
+Follow the procedure under "Building libjpeg-turbo" above, adding
+
+  --host aarch64-apple-darwin \
+    CC="$IOS_GCC" LD="$IOS_GCC" \
+    CFLAGS="-isysroot $IOS_SYSROOT -O3 $IOS_CFLAGS" \
+    LDFLAGS="-isysroot $IOS_SYSROOT $IOS_CFLAGS"
+
+to the configure command line.
+
+
+NOTE:  You can also add -miphoneos-version-min={version} to $IOS_CFLAGS above
+in order to support older versions of iOS than the default version supported by
+the SDK.
+
+Once built, lipo can be used to combine the ARMv6, v7, v7s, and/or v8 variants
+into a universal library.
+
+NOTE: If you are building libjpeg-turbo from the "official" project tarball,
+then it is highly likely that you will need to run 'autoreconf -fiv' in the
+source tree prior to building ARMv7, v7s, or v8 iOS binaries using the
+techniques described above.  Otherwise, you may get a libtool error such as
+"unable to infer tagged configuration."
+
+
+Building libjpeg-turbo for Android
+----------------------------------
+
+Building libjpeg-turbo for Android platforms requires the Android NDK
+(https://developer.android.com/tools/sdk/ndk) and autotools.  The following is
+a general recipe script that can be modified for your specific needs.
+
+  # Set these variables to suit your needs
+  NDK_PATH={full path to the "ndk" directory-- for example, /opt/android/ndk}
+  BUILD_PLATFORM={the platform name for the NDK package you installed--
+    for example, "windows-x86" or "linux-x86_64"}
+  TOOLCHAIN_VERSION={"4.6", "4.8", etc.  This corresponds to a toolchain
+    directory under ${NDK_PATH}/toolchains/.}
+  ANDROID_VERSION={The minimum version of Android to support-- for example,
+    "9", "19", etc.}
+
+  HOST=arm-linux-androideabi
+  TOOLCHAIN=${NDK_PATH}/toolchains/${HOST}-${TOOLCHAIN_VERSION}/prebuilt/${BUILD_PLATFORM}
+  SYSROOT=${NDK_PATH}/platforms/android-${ANDROID_VERSION}/arch-arm
+  ANDROID_INCLUDES="-I${SYSROOT}/usr/include -I${TOOLCHAIN}/include"
+  ANDROID_CFLAGS="-march=armv7-a -mfloat-abi=softfp -fprefetch-loop-arrays \
+    -fstrict-aliasing --sysroot=${SYSROOT}"
+  export CPP=${TOOLCHAIN}/bin/${HOST}-cpp
+  export AR=${TOOLCHAIN}/bin/${HOST}-ar
+  export AS=${TOOLCHAIN}/bin/${HOST}-as
+  export NM=${TOOLCHAIN}/bin/${HOST}-nm
+  export CC=${TOOLCHAIN}/bin/${HOST}-gcc
+  export LD=${TOOLCHAIN}/bin/${HOST}-ld
+  export RANLIB=${TOOLCHAIN}/bin/${HOST}-ranlib
+  export OBJDUMP=${TOOLCHAIN}/bin/${HOST}-objdump
+  export STRIP=${TOOLCHAIN}/bin/${HOST}-strip
+  cd {build_directory}
+  sh {source_directory}/configure --host=${HOST} \
+    CFLAGS="${ANDROID_INCLUDES} ${ANDROID_CFLAGS} -O3" \
+    CPPFLAGS="${ANDROID_INCLUDES} ${ANDROID_CFLAGS}" \
+    LDFLAGS="${ANDROID_CFLAGS}" --with-simd ${1+"$@"}
+  make
+
+
+*******************************************************************************
+**     Building on Windows (Visual C++ or MinGW)
+*******************************************************************************
+
+
+==================
+Build Requirements
+==================
+
+-- CMake (http://www.cmake.org) v2.8.8 or later
+
+-- Microsoft Visual C++ 2005 or later
+
+   If you don't already have Visual C++, then the easiest way to get it is by
+   installing the Windows SDK:
+
+   http://msdn.microsoft.com/en-us/windows/bb980924.aspx
+
+   The Windows SDK includes both 32-bit and 64-bit Visual C++ compilers and
+   everything necessary to build libjpeg-turbo.
+
+   * You can also use Microsoft Visual Studio Express Edition, which is a free
+     download.  (NOTE: versions prior to 2012 can only be used to build 32-bit
+     code.)
+   * If you intend to build libjpeg-turbo from the command line, then add the
+     appropriate compiler and SDK directories to the INCLUDE, LIB, and PATH
+     environment variables.  This is generally accomplished by executing
+     vcvars32.bat or vcvars64.bat and SetEnv.cmd.  vcvars32.bat and
+     vcvars64.bat are part of Visual C++ and are located in the same directory
+     as the compiler.  SetEnv.cmd is part of the Windows SDK.  You can pass
+     optional arguments to SetEnv.cmd to specify a 32-bit or 64-bit build
+     environment.
+
+... OR ...
+
+-- MinGW
+
+   MinGW-builds (http://sourceforge.net/projects/mingwbuilds/) or
+   tdm-gcc (http://tdm-gcc.tdragon.net/) recommended if building on a Windows
+   machine.  Both distributions install a Start Menu link that can be used to
+   launch a command prompt with the appropriate compiler paths automatically
+   set.
+
+-- NASM (http://www.nasm.us/) 0.98 or later (NASM 2.05 or later is required for
+   a 64-bit build)
+
+-- If building the TurboJPEG Java wrapper, JDK 1.5 or later is required.  This
+   can be downloaded from http://www.java.com.
+
+
+==================
+Out-of-Tree Builds
+==================
+
+Binary objects, libraries, and executables are generated in the same directory
+from which cmake was executed (the "binary directory"), and this directory need
+not necessarily be the same as the libjpeg-turbo source directory.  You can
+create multiple independent binary directories, in which different versions of
+libjpeg-turbo can be built from the same source tree using different compilers
+or settings.  In the sections below, {build_directory} refers to the binary
+directory, whereas {source_directory} refers to the libjpeg-turbo source
+directory.  For in-tree builds, these directories are the same.
+
+
+======================
+Building libjpeg-turbo
+======================
+
+
+Visual C++ (Command Line)
+-------------------------
+
+  cd {build_directory}
+  cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release {source_directory}
+  nmake
+
+This will build either a 32-bit or a 64-bit version of libjpeg-turbo, depending
+on which version of cl.exe is in the PATH.
+
+The following files will be generated under {build_directory}:
+
+  jpeg-static.lib
+      Static link library for the libjpeg API
+  sharedlib/jpeg{version}.dll
+      DLL for the libjpeg API
+  sharedlib/jpeg.lib
+      Import library for the libjpeg API
+  turbojpeg-static.lib
+      Static link library for the TurboJPEG API
+  turbojpeg.dll
+      DLL for the TurboJPEG API
+  turbojpeg.lib
+      Import library for the TurboJPEG API
+
+{version} is 62, 7, or 8, depending on whether libjpeg v6b (default), v7, or
+v8 emulation is enabled.
+
+
+Visual C++ (IDE)
+----------------
+
+Choose the appropriate CMake generator option for your version of Visual Studio
+(run "cmake" with no arguments for a list of available generators.)  For
+instance:
+
+  cd {build_directory}
+  cmake -G "Visual Studio 10" {source_directory}
+
+NOTE:  Add "Win64" to the generator name (for example, "Visual Studio 10
+Win64") to build a 64-bit version of libjpeg-turbo.  Recent versions of CMake
+no longer document that.  A separate build directory must be used for 32-bit
+and 64-bit builds.
+
+You can then open ALL_BUILD.vcproj in Visual Studio and build one of the
+configurations in that project ("Debug", "Release", etc.) to generate a full
+build of libjpeg-turbo.
+
+This will generate the following files under {build_directory}:
+
+  {configuration}/jpeg-static.lib
+      Static link library for the libjpeg API
+  sharedlib/{configuration}/jpeg{version}.dll
+      DLL for the libjpeg API
+  sharedlib/{configuration}/jpeg.lib
+      Import library for the libjpeg API
+  {configuration}/turbojpeg-static.lib
+      Static link library for the TurboJPEG API
+  {configuration}/turbojpeg.dll
+      DLL for the TurboJPEG API
+  {configuration}/turbojpeg.lib
+      Import library for the TurboJPEG API
+
+{configuration} is Debug, Release, RelWithDebInfo, or MinSizeRel, depending on
+the configuration you built in the IDE, and {version} is 62, 7, or 8,
+depending on whether libjpeg v6b (default), v7, or v8 emulation is enabled.
+
+
+MinGW
+-----
+
+NOTE: This assumes that you are building on a Windows machine.  If you are
+cross-compiling on a Linux/Unix machine, then see "Build Recipes" below.
+
+  cd {build_directory}
+  cmake -G "MinGW Makefiles" {source_directory}
+  mingw32-make
+
+This will generate the following files under {build_directory}
+
+  libjpeg.a
+      Static link library for the libjpeg API
+  sharedlib/libjpeg-{version}.dll
+      DLL for the libjpeg API
+  sharedlib/libjpeg.dll.a
+      Import library for the libjpeg API
+  libturbojpeg.a
+      Static link library for the TurboJPEG API
+  libturbojpeg.dll
+      DLL for the TurboJPEG API
+  libturbojpeg.dll.a
+      Import library for the TurboJPEG API
+
+{version} is 62, 7, or 8, depending on whether libjpeg v6b (default), v7, or
+v8 emulation is enabled.
+
+
+Debug Build
+-----------
+
+Add "-DCMAKE_BUILD_TYPE=Debug" to the cmake command line.  Or, if building with
+NMake, remove "-DCMAKE_BUILD_TYPE=Release" (Debug builds are the default with
+NMake.)
+
+
+libjpeg v7 or v8 API/ABI Emulation
+-----------------------------------
+
+Add "-DWITH_JPEG7=1" to the cmake command line to build a version of
+libjpeg-turbo that is API/ABI-compatible with libjpeg v7.  Add "-DWITH_JPEG8=1"
+to the cmake command to build a version of libjpeg-turbo that is
+API/ABI-compatible with libjpeg v8.  See README-turbo.txt for more information
+on libjpeg v7 and v8 emulation.
+
+
+In-Memory Source/Destination Managers
+-------------------------------------
+
+When using libjpeg v6b or v7 API/ABI emulation, add -DWITH_MEM_SRCDST=0 to the
+CMake command line to build a version of libjpeg-turbo that lacks the
+jpeg_mem_src() and jpeg_mem_dest() functions.  These functions were not part of
+the original libjpeg v6b and v7 APIs, so removing them ensures strict
+conformance with those APIs.  See README-turbo.txt for more information.
+
+
+Arithmetic Coding Support
+-------------------------
+
+Since the patent on arithmetic coding has expired, this functionality has been
+included in this release of libjpeg-turbo.  libjpeg-turbo's implementation is
+based on the implementation in libjpeg v8, but it works when emulating libjpeg
+v7 or v6b as well.  The default is to enable both arithmetic encoding and
+decoding, but those who have philosophical objections to arithmetic coding can
+add "-DWITH_ARITH_ENC=0" or "-DWITH_ARITH_DEC=0" to the cmake command line to
+disable encoding or decoding (respectively.)
+
+
+TurboJPEG Java Wrapper
+----------------------
+Add "-DWITH_JAVA=1" to the cmake command line to incorporate an optional Java
+Native Interface wrapper into the TurboJPEG shared library and build the Java
+front-end classes to support it.  This allows the TurboJPEG shared library to
+be used directly from Java applications.  See java/README for more details.
+
+If you are using CMake 2.8, you can set the Java_JAVAC_EXECUTABLE,
+Java_JAVA_EXECUTABLE, and Java_JAR_EXECUTABLE CMake variables to specify
+alternate commands or locations for javac, jar, and java (respectively.)  If
+you are using CMake 2.6, set JAVA_COMPILE, JAVA_RUNTIME, and JAVA_ARCHIVE
+instead.  You can also set the JAVACFLAGS CMake variable to specify arguments
+that should be passed to the Java compiler when building the front-end classes.
+
+
+========================
+Installing libjpeg-turbo
+========================
+
+You can use the build system to install libjpeg-turbo into a directory of your
+choosing (as opposed to creating an installer.)  To do this, add:
+
+  -DCMAKE_INSTALL_PREFIX={install_directory}
+
+to the cmake command line.
+
+For example,
+
+  cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX=c:\libjpeg-turbo {source_directory}
+  nmake install
+
+will install the header files in c:\libjpeg-turbo\include, the library files
+in c:\libjpeg-turbo\lib, the DLL's in c:\libjpeg-turbo\bin, and the
+documentation in c:\libjpeg-turbo\doc.
+
+
+=============
+Build Recipes
+=============
+
+
+64-bit MinGW Build on Cygwin
+----------------------------
+
+  cd {build_directory}
+  CC=/usr/bin/x86_64-w64-mingw32-gcc \
+    cmake -G "Unix Makefiles" -DCMAKE_SYSTEM_NAME=Windows \
+    -DCMAKE_RC_COMPILER=/usr/bin/x86_64-w64-mingw32-windres.exe \
+    {source_directory}
+  make
+
+This produces a 64-bit build of libjpeg-turbo that does not depend on
+cygwin1.dll or other Cygwin DLL's.  The mingw64-x86_64-gcc-core and
+mingw64-x86_64-gcc-g++ packages (and their dependencies) must be installed.
+
+
+32-bit MinGW Build on Cygwin
+----------------------------
+
+  cd {build_directory}
+  CC=/usr/bin/i686-w64-mingw32-gcc \
+    cmake -G "Unix Makefiles" -DCMAKE_SYSTEM_NAME=Windows \
+    -DCMAKE_RC_COMPILER=/usr/bin/i686-w64-mingw32-windres.exe \
+    {source_directory}
+  make
+
+This produces a 32-bit build of libjpeg-turbo that does not depend on
+cygwin1.dll or other Cygwin DLL's.  The mingw64-i686-gcc-core and
+mingw64-i686-gcc-g++ packages (and their dependencies) must be installed.
+
+
+MinGW Build on Linux
+--------------------
+
+  cd {build_directory}
+  CC={mingw_binary_path}/i386-mingw32-gcc \
+    cmake -G "Unix Makefiles" -DCMAKE_SYSTEM_NAME=Windows \
+    -DCMAKE_AR={mingw_binary_path}/i386-mingw32-ar \
+    -DCMAKE_RANLIB={mingw_binary_path}/i386-mingw32-ranlib \
+    {source_directory}
+  make
+
+
+*******************************************************************************
+**     Creating Release Packages
+*******************************************************************************
+
+The following commands can be used to create various types of release packages:
+
+
+Unix/Linux
+----------
+
+make rpm
+
+  Create Red Hat-style binary RPM package.  Requires RPM v4 or later.
+
+make srpm
+
+  This runs 'make dist' to create a pristine source tarball, then creates a
+  Red Hat-style source RPM package from the tarball.  Requires RPM v4 or later.
+
+make deb
+
+  Create Debian-style binary package.  Requires dpkg.
+
+make dmg
+
+  Create Macintosh package/disk image.  This requires pkgbuild and
+  productbuild, which are installed by default on OS X 10.7 and later and which
+  can be obtained by installing Xcode 3.2.6 (with the "Unix Development"
+  option) on OS X 10.6.  Packages built in this manner can be installed on OS X
+  10.5 and later, but they must be built on OS X 10.6 or later.
+
+make udmg [BUILDDIR32={32-bit build directory}]
+
+  On 64-bit OS X systems, this creates a Macintosh package and disk image that
+  contains universal i386/x86-64 binaries.  You should first configure a 32-bit
+  out-of-tree build of libjpeg-turbo, then configure a 64-bit out-of-tree
+  build, then run 'make udmg' from the 64-bit build directory.  The build
+  system will look for the 32-bit build under {source_directory}/osxx86 by
+  default, but you can override this by setting the BUILDDIR32 variable on the
+  make command line as shown above.
+
+make iosdmg [BUILDDIR32={32-bit build directory}] \
+  [BUILDDIRARMV6={ARMv6 build directory}] \
+  [BUILDDIRARMV7={ARMv7 build directory}] \
+  [BUILDDIRARMV7S={ARMv7s build directory}] \
+  [BUILDDIRARMV8={ARMv8 build directory}]
+
+  On OS X systems, this creates a Macintosh package and disk image in which the
+  libjpeg-turbo static libraries contain ARM architectures necessary to build
+  iOS applications.  If building on an x86-64 system, the binaries will also
+  contain the i386 architecture, as with 'make udmg' above.  You should first
+  configure ARMv6, ARMv7, ARMv7s, and/or ARMv8 out-of-tree builds of
+  libjpeg-turbo (see "Building libjpeg-turbo for iOS" above.)  If you are
+  building an x86-64 version of libjpeg-turbo, you should configure a 32-bit
+  out-of-tree build as well.  Next, build libjpeg-turbo as you would normally,
+  using an out-of-tree build.  When it is built, run 'make iosdmg' from the
+  build directory.  The build system will look for the ARMv6 build under
+  {source_directory}/iosarmv6 by default, the ARMv7 build under
+  {source_directory}/iosarmv7 by default, the ARMv7s build under
+  {source_directory}/iosarmv7s by default, the ARMv8 build under
+  {source_directory}/iosarmv8 by default, and (if applicable) the 32-bit build
+  under {source_directory}/osxx86 by default, but you can override this by
+  setting the BUILDDIR32, BUILDDIRARMV6, BUILDDIRARMV7, BUILDDIRARMV7S, and/or
+  BUILDDIRARMV8 variables on the make command line as shown above.
+
+  NOTE: If including an ARMv8 build in the package, then you may need to use
+  Xcode's version of lipo instead of the operating system's.  To do this, pass
+  an argument of LIPO="xcrun lipo" on the make command line.
+
+make cygwinpkg
+
+  Build a Cygwin binary package.
+
+
+Windows
+-------
+
+If using NMake:
+
+  cd {build_directory}
+  nmake installer
+
+If using MinGW:
+
+  cd {build_directory}
+  make installer
+
+If using the Visual Studio IDE, build the "installer" project.
+
+The installer package (libjpeg-turbo[-gcc][64].exe) will be located under
+{build_directory}.  If building using the Visual Studio IDE, then the installer
+package will be located in a subdirectory with the same name as the
+configuration you built (such as {build_directory}\Debug\ or
+{build_directory}\Release\).
+
+Building a Windows installer requires the Nullsoft Install System
+(http://nsis.sourceforge.net/.)  makensis.exe should be in your PATH.
+
+
+*******************************************************************************
+**     Regression testing
+*******************************************************************************
+
+The most common way to test libjpeg-turbo is by invoking 'make test' on
+Unix/Linux platforms or 'ctest' on Windows platforms, once the build has
+completed.  This runs a series of tests to ensure that mathematical
+compatibility has been maintained between libjpeg-turbo and libjpeg v6b.  This
+also invokes the TurboJPEG unit tests, which ensure that the colorspace
+extensions, YUV encoding, decompression scaling, and other features of the
+TurboJPEG C and Java APIs are working properly (and, by extension, that the
+equivalent features of the underlying libjpeg API are also working.)
+
+Invoking 'make testclean' or 'nmake testclean' (if using NMake) or building
+the 'testclean' target (if using the Visual Studio IDE) will clean up the
+output images generated by 'make test'.
+
+On Unix/Linux platforms, more extensive tests of the TurboJPEG C and Java
+wrappers can be run by invoking 'make tjtest'.  These extended TurboJPEG tests
+essentially iterate through all of the available features of the TurboJPEG APIs
+that are not covered by the TurboJPEG unit tests (this includes the lossless
+transform options) and compare the images generated by each feature to images
+generated using the equivalent feature in the libjpeg API.  The extended
+TurboJPEG tests are meant to test for regressions in the TurboJPEG wrappers,
+not in the underlying libjpeg API library.

CMakeLists.txt

@@ -0,0 +1,856 @@
+#
+# Setup
+#
+
+cmake_minimum_required(VERSION 2.8.8)
+# Use LINK_INTERFACE_LIBRARIES instead of INTERFACE_LINK_LIBRARIES
+if(POLICY CMP0022)
+  cmake_policy(SET CMP0022 OLD)
+endif()
+
+project(libjpeg-turbo C)
+set(VERSION 1.4.1)
+
+if(CYGWIN OR NOT CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
+  execute_process(COMMAND "date" "+%Y%m%d" OUTPUT_VARIABLE BUILD)
+  string(REGEX REPLACE "\n" "" BUILD ${BUILD})
+elseif(WIN32)
+  execute_process(COMMAND "wmic.exe" "os" "get" "LocalDateTime" OUTPUT_VARIABLE
+    BUILD)
+  string(REGEX REPLACE "[^0-9]" "" BUILD "${BUILD}")
+  if (BUILD STREQUAL "")
+    execute_process(COMMAND "cmd.exe" "/C" "DATE" "/T" OUTPUT_VARIABLE BUILD)
+    string(REGEX REPLACE ".*[ ]([0-9]*)[/.]([0-9]*)[/.]([0-9]*).*" "\\3\\2\\1" BUILD "${BUILD}")
+  else()
+    string(SUBSTRING "${BUILD}" 0 8 BUILD)
+  endif()
+else()
+  message(FATAL_ERROR "Platform not supported by this build system.  Use autotools instead.")
+endif()
+
+# This does nothing except when using MinGW.  CMAKE_BUILD_TYPE has no meaning
+# in Visual Studio, and it always defaults to Debug when using NMake.
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Release)
+endif()
+
+message(STATUS "CMAKE_BUILD_TYPE = ${CMAKE_BUILD_TYPE}")
+
+# This only works if building from the command line.  There is currently no way
+# to set a variable's value based on the build type when using Visual Studio.
+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+  set(BUILD "${BUILD}d")
+endif()
+
+message(STATUS "VERSION = ${VERSION}, BUILD = ${BUILD}")
+
+option(WITH_SIMD "Include SIMD extensions" TRUE)
+option(WITH_ARITH_ENC "Include arithmetic encoding support" TRUE)
+option(WITH_ARITH_DEC "Include arithmetic decoding support" TRUE)
+option(WITH_JPEG7 "Emulate libjpeg v7 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b)" FALSE)
+option(WITH_JPEG8 "Emulate libjpeg v8 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b)" FALSE)
+option(WITH_MEM_SRCDST "Include in-memory source/destination manager functions when emulating the libjpeg v6b or v7 API/ABI" TRUE)
+option(WITH_TURBOJPEG "Include the TurboJPEG wrapper library and associated test programs" TRUE)
+option(WITH_JAVA "Build Java wrapper for the TurboJPEG library" FALSE)
+option(WITH_12BIT "Encode/decode JPEG images with 12-bit samples (implies WITH_SIMD=0 WITH_TURBOJPEG=0 WITH_ARITH_ENC=0 WITH_ARITH_DEC=0)" FALSE)
+option(ENABLE_STATIC "Build static libraries" TRUE)
+option(ENABLE_SHARED "Build shared libraries" TRUE)
+
+if(WITH_12BIT)
+  set(WITH_SIMD FALSE)
+  set(WITH_TURBOJPEG FALSE)
+  set(WITH_ARITH_ENC FALSE)
+  set(WITH_ARITH_DEC FALSE)
+  set(BITS_IN_JSAMPLE 12)
+  message(STATUS "12-bit JPEG support enabled")
+else()
+  set(BITS_IN_JSAMPLE 8)
+endif()
+
+if(WITH_ARITH_ENC)
+  set(C_ARITH_CODING_SUPPORTED 1)
+  message(STATUS "Arithmetic encoding support enabled")
+else()
+  message(STATUS "Arithmetic encoding support disabled")
+endif()
+
+if(WITH_ARITH_DEC)
+  set(D_ARITH_CODING_SUPPORTED 1)
+  message(STATUS "Arithmetic decoding support enabled")
+else()
+  message(STATUS "Arithmetic decoding support disabled")
+endif()
+
+if(WITH_TURBOJPEG)
+  message(STATUS "TurboJPEG C wrapper enabled")
+else()
+  message(STATUS "TurboJPEG C wrapper disabled")
+endif()
+
+if(WITH_JAVA)
+  message(STATUS "TurboJPEG Java wrapper enabled")
+else()
+  message(STATUS "TurboJPEG Java wrapper disabled")
+endif()
+
+set(SO_AGE 0)
+if(WITH_MEM_SRCDST)
+  set(SO_AGE 1)
+endif()
+
+set(JPEG_LIB_VERSION 62)
+set(DLL_VERSION ${JPEG_LIB_VERSION})
+set(FULLVERSION ${DLL_VERSION}.${SO_AGE}.0)
+if(WITH_JPEG8)
+  set(JPEG_LIB_VERSION 80)
+  set(DLL_VERSION 8)
+  set(FULLVERSION ${DLL_VERSION}.0.2)
+  message(STATUS "Emulating libjpeg v8 API/ABI")
+elseif(WITH_JPEG7)
+  set(JPEG_LIB_VERSION 70)
+  set(DLL_VERSION 7)
+  set(FULLVERSION ${DLL_VERSION}.${SO_AGE}.0)
+  message(STATUS "Emulating libjpeg v7 API/ABI")
+endif(WITH_JPEG8)
+
+if(WITH_MEM_SRCDST)
+  set(MEM_SRCDST_SUPPORTED 1)
+  message(STATUS "In-memory source/destination managers enabled")
+else()
+  message(STATUS "In-memory source/destination managers disabled")
+endif()
+
+if(MSVC)
+  option(WITH_CRT_DLL
+    "Link all libjpeg-turbo libraries and executables with the C run-time DLL (msvcr*.dll) instead of the static C run-time library (libcmt*.lib.)  The default is to use the C run-time DLL only with the libraries and executables that need it."
+    FALSE)
+  if(NOT WITH_CRT_DLL)
+    # Use the static C library for all build types
+    foreach(var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
+      CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
+      if(${var} MATCHES "/MD")
+        string(REGEX REPLACE "/MD" "/MT" ${var} "${${var}}")
+      endif()
+    endforeach()
+  endif()
+  add_definitions(-W3 -wd4996)
+endif()
+
+# Detect whether compiler is 64-bit
+if(MSVC AND CMAKE_CL_64)
+  set(SIMD_X86_64 1)
+  set(64BIT 1)
+elseif(CMAKE_SIZEOF_VOID_P MATCHES 8)
+  set(SIMD_X86_64 1)
+  set(64BIT 1)
+endif()
+
+if(64BIT)
+  message(STATUS "64-bit build")
+else()
+  message(STATUS "32-bit build")
+endif()
+
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  if(MSVC)
+    set(CMAKE_INSTALL_PREFIX_DEFAULT ${CMAKE_PROJECT_NAME})
+  else()
+    set(CMAKE_INSTALL_PREFIX_DEFAULT ${CMAKE_PROJECT_NAME}-gcc)
+  endif()
+  if(64BIT)
+    set(CMAKE_INSTALL_PREFIX_DEFAULT ${CMAKE_INSTALL_PREFIX_DEFAULT}64)
+  endif()
+  set(CMAKE_INSTALL_PREFIX "c:/${CMAKE_INSTALL_PREFIX_DEFAULT}" CACHE PATH
+    "Directory into which to install libjpeg-turbo (default: c:/${CMAKE_INSTALL_PREFIX_DEFAULT})"
+    FORCE)
+endif()
+
+message(STATUS "Install directory = ${CMAKE_INSTALL_PREFIX}")
+
+configure_file(win/jconfig.h.in jconfig.h)
+configure_file(win/jconfigint.h.in jconfigint.h)
+
+include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})
+
+if(WITH_JAVA)
+  find_package(Java)
+  find_package(JNI)
+  if(DEFINED JAVACFLAGS)
+    message(STATUS "Java compiler flags = ${JAVACFLAGS}")
+  endif()
+endif()
+
+
+#
+# Targets
+#
+
+set(JPEG_SOURCES jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c
+  jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c jcphuff.c
+  jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c jdatadst.c jdatasrc.c
+  jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c
+  jdmaster.c jdmerge.c jdphuff.c jdpostct.c jdsample.c jdtrans.c jerror.c
+  jfdctflt.c jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c
+  jquant1.c jquant2.c jutils.c jmemmgr.c jmemnobs.c)
+
+if(WITH_ARITH_ENC OR WITH_ARITH_DEC)
+  set(JPEG_SOURCES ${JPEG_SOURCES} jaricom.c)
+endif()
+
+if(WITH_ARITH_ENC)
+  set(JPEG_SOURCES ${JPEG_SOURCES} jcarith.c)
+endif()
+
+if(WITH_ARITH_DEC)
+  set(JPEG_SOURCES ${JPEG_SOURCES} jdarith.c)
+endif()
+
+if(WITH_SIMD)
+  add_definitions(-DWITH_SIMD)
+  add_subdirectory(simd)
+  if(SIMD_X86_64)
+    set(JPEG_SOURCES ${JPEG_SOURCES} simd/jsimd_x86_64.c)
+  else()
+    set(JPEG_SOURCES ${JPEG_SOURCES} simd/jsimd_i386.c)
+  endif()
+  # This tells CMake that the "source" files haven't been generated yet
+  set_source_files_properties(${SIMD_OBJS} PROPERTIES GENERATED 1)
+else()
+  set(JPEG_SOURCES ${JPEG_SOURCES} jsimd_none.c)
+  message(STATUS "Not using SIMD acceleration")
+endif()
+
+if(WITH_JAVA)
+  add_subdirectory(java)
+  set(ENABLE_SHARED TRUE)
+endif()
+
+if(ENABLE_SHARED)
+  add_subdirectory(sharedlib)
+endif()
+
+if(ENABLE_STATIC OR WITH_TURBOJPEG)
+  add_library(jpeg-static STATIC ${JPEG_SOURCES} ${SIMD_OBJS})
+  if(NOT MSVC)
+    set_target_properties(jpeg-static PROPERTIES OUTPUT_NAME jpeg)
+  endif()
+  if(WITH_SIMD)
+    add_dependencies(jpeg-static simd)
+  endif()
+endif()
+
+if(WITH_TURBOJPEG)
+  set(TURBOJPEG_SOURCES turbojpeg.c transupp.c jdatadst-tj.c jdatasrc-tj.c)
+  if(WITH_JAVA)
+    set(TURBOJPEG_SOURCES ${TURBOJPEG_SOURCES} turbojpeg-jni.c)
+    include_directories(${JAVA_INCLUDE_PATH} ${JAVA_INCLUDE_PATH2})
+  endif()
+
+  if(ENABLE_SHARED)
+    add_library(turbojpeg SHARED ${TURBOJPEG_SOURCES})
+    set_target_properties(turbojpeg PROPERTIES DEFINE_SYMBOL DLLDEFINE)
+    if(MINGW)
+      set_target_properties(turbojpeg PROPERTIES LINK_FLAGS -Wl,--kill-at)
+    endif()
+    target_link_libraries(turbojpeg jpeg-static)
+    set_target_properties(turbojpeg PROPERTIES LINK_INTERFACE_LIBRARIES "")
+
+    add_executable(tjunittest tjunittest.c tjutil.c)
+    target_link_libraries(tjunittest turbojpeg)
+
+    add_executable(tjbench tjbench.c bmp.c tjutil.c rdbmp.c rdppm.c wrbmp.c
+      wrppm.c)
+    target_link_libraries(tjbench turbojpeg jpeg-static)
+    set_property(TARGET tjbench PROPERTY COMPILE_FLAGS
+      "-DBMP_SUPPORTED -DPPM_SUPPORTED")
+  endif()
+
+  if(ENABLE_STATIC)
+    add_library(turbojpeg-static STATIC ${JPEG_SOURCES} ${SIMD_OBJS}
+      turbojpeg.c transupp.c jdatadst-tj.c jdatasrc-tj.c)
+    if(NOT MSVC)
+      set_target_properties(turbojpeg-static PROPERTIES OUTPUT_NAME turbojpeg)
+    endif()
+    if(WITH_SIMD)
+      add_dependencies(turbojpeg-static simd)
+    endif()
+
+    add_executable(tjunittest-static tjunittest.c tjutil.c)
+    target_link_libraries(tjunittest-static turbojpeg-static)
+
+    add_executable(tjbench-static tjbench.c bmp.c tjutil.c rdbmp.c rdppm.c
+      wrbmp.c wrppm.c)
+    target_link_libraries(tjbench-static turbojpeg-static jpeg-static)
+    set_property(TARGET tjbench-static PROPERTY COMPILE_FLAGS
+      "-DBMP_SUPPORTED -DPPM_SUPPORTED")
+  endif()
+endif()
+
+if(WITH_12BIT)
+  set(COMPILE_FLAGS "-DGIF_SUPPORTED -DPPM_SUPPORTED -DUSE_SETMODE")
+else()
+  set(COMPILE_FLAGS "-DBMP_SUPPORTED -DGIF_SUPPORTED -DPPM_SUPPORTED -DTARGA_SUPPORTED -DUSE_SETMODE")
+	set(CJPEG_BMP_SOURCES rdbmp.c rdtarga.c)
+	set(DJPEG_BMP_SOURCES wrbmp.c wrtarga.c)
+endif()
+
+if(ENABLE_STATIC)
+  add_executable(cjpeg-static cjpeg.c cdjpeg.c rdgif.c rdppm.c rdswitch.c
+    ${CJPEG_BMP_SOURCES})
+  set_property(TARGET cjpeg-static PROPERTY COMPILE_FLAGS ${COMPILE_FLAGS})
+  target_link_libraries(cjpeg-static jpeg-static)
+
+  add_executable(djpeg-static djpeg.c cdjpeg.c rdcolmap.c rdswitch.c wrgif.c
+    wrppm.c ${DJPEG_BMP_SOURCES})
+  set_property(TARGET djpeg-static PROPERTY COMPILE_FLAGS ${COMPILE_FLAGS})
+  target_link_libraries(djpeg-static jpeg-static)
+
+  add_executable(jpegtran-static jpegtran.c cdjpeg.c rdswitch.c transupp.c)
+  target_link_libraries(jpegtran-static jpeg-static)
+  set_property(TARGET jpegtran-static PROPERTY COMPILE_FLAGS "-DUSE_SETMODE")
+endif()
+
+add_executable(rdjpgcom rdjpgcom.c)
+
+add_executable(wrjpgcom wrjpgcom.c)
+
+
+#
+# Tests
+#
+
+if(MSVC_IDE)
+  set(OBJDIR "\${CTEST_CONFIGURATION_TYPE}/")
+else()
+  set(OBJDIR "")
+endif()
+
+enable_testing()
+
+if(WITH_12BIT)
+  set(TESTORIG testorig12.jpg)
+  set(MD5_JPEG_RGB_ISLOW 9620f424569594bb9242b48498ad801f)
+  set(MD5_PPM_RGB_ISLOW f3301d2219783b8b3d942b7239fa50c0)
+  set(MD5_JPEG_422_IFAST_OPT 7322e3bd2f127f7de4b40d4480ce60e4)
+  set(MD5_PPM_422_IFAST 79807fa552899e66a04708f533e16950)
+  set(MD5_PPM_422M_IFAST 07737bfe8a7c1c87aaa393a0098d16b0)
+  set(MD5_JPEG_420_IFAST_Q100_PROG a1da220b5604081863a504297ed59e55)
+  set(MD5_PPM_420_Q100_IFAST 1b3730122709f53d007255e8dfd3305e)
+  set(MD5_PPM_420M_Q100_IFAST 980a1a3c5bf9510022869d30b7d26566)
+  set(MD5_JPEG_GRAY_ISLOW 235c90707b16e2e069f37c888b2636d9)
+  set(MD5_PPM_GRAY_ISLOW 7213c10af507ad467da5578ca5ee1fca)
+  set(MD5_PPM_GRAY_ISLOW_RGB e96ee81c30a6ed422d466338bd3de65d)
+  set(MD5_JPEG_420S_IFAST_OPT 7af8e60be4d9c227ec63ac9b6630855e)
+  set(MD5_JPEG_3x2_FLOAT_PROG a8c17daf77b457725ec929e215b603f8)
+  set(MD5_PPM_3x2_FLOAT 42876ab9e5c2f76a87d08db5fbd57956)
+  set(MD5_PPM_420M_ISLOW_2_1 4ca6be2a6f326ff9eaab63e70a8259c0)
+  set(MD5_PPM_420M_ISLOW_15_8 12aa9f9534c1b3d7ba047322226365eb)
+  set(MD5_PPM_420M_ISLOW_13_8 f7e22817c7b25e1393e4ec101e9d4e96)
+  set(MD5_PPM_420M_ISLOW_11_8 800a16f9f4dc9b293197bfe11be10a82)
+  set(MD5_PPM_420M_ISLOW_9_8 06b7a92a9bc69f4dc36ec40f1937d55c)
+  set(MD5_PPM_420M_ISLOW_7_8 3ec444a14a4ab4eab88ffc49c48eca43)
+  set(MD5_PPM_420M_ISLOW_3_4 3e726b7ea872445b19437d1c1d4f0d93)
+  set(MD5_PPM_420M_ISLOW_5_8 a8a771abdc94301d20ffac119b2caccd)
+  set(MD5_PPM_420M_ISLOW_1_2 b419124dd5568b085787234866102866)
+  set(MD5_PPM_420M_ISLOW_3_8 343d19015531b7bbe746124127244fa8)
+  set(MD5_PPM_420M_ISLOW_1_4 35fd59d866e44659edfa3c18db2a3edb)
+  set(MD5_PPM_420M_ISLOW_1_8 ccaed48ac0aedefda5d4abe4013f4ad7)
+  set(MD5_JPEG_CROP cdb35ff4b4519392690ea040c56ea99c)
+else()
+  set(TESTORIG testorig.jpg)
+  set(MD5_JPEG_RGB_ISLOW 768e970dd57b340ff1b83c9d3d47c77b)
+  set(MD5_PPM_RGB_ISLOW 00a257f5393fef8821f2b88ac7421291)
+  set(MD5_BMP_RGB_ISLOW_565 f07d2e75073e4bb10f6c6f4d36e2e3be)
+  set(MD5_BMP_RGB_ISLOW_565D 4cfa0928ef3e6bb626d7728c924cfda4)
+  set(MD5_JPEG_422_IFAST_OPT 2540287b79d913f91665e660303ab2c8)
+  set(MD5_PPM_422_IFAST 35bd6b3f833bad23de82acea847129fa)
+  set(MD5_PPM_422M_IFAST 8dbc65323d62cca7c91ba02dd1cfa81d)
+  set(MD5_BMP_422M_IFAST_565 3294bd4d9a1f2b3d08ea6020d0db7065)
+  set(MD5_BMP_422M_IFAST_565D da98c9c7b6039511be4a79a878a9abc1)
+  set(MD5_JPEG_420_IFAST_Q100_PROG 990cbe0329c882420a2094da7e5adade)
+  set(MD5_PPM_420_Q100_IFAST 5a732542015c278ff43635e473a8a294)
+  set(MD5_PPM_420M_Q100_IFAST ff692ee9323a3b424894862557c092f1)
+  set(MD5_JPEG_GRAY_ISLOW 72b51f894b8f4a10b3ee3066770aa38d)
+  set(MD5_PPM_GRAY_ISLOW 8d3596c56eace32f205deccc229aa5ed)
+  set(MD5_PPM_GRAY_ISLOW_RGB 116424ac07b79e5e801f00508eab48ec)
+  set(MD5_BMP_GRAY_ISLOW_565 12f78118e56a2f48b966f792fedf23cc)
+  set(MD5_BMP_GRAY_ISLOW_565D bdbbd616441a24354c98553df5dc82db)
+  set(MD5_JPEG_420S_IFAST_OPT 388708217ac46273ca33086b22827ed8)
+  if(WITH_SIMD)
+    set(MD5_JPEG_3x2_FLOAT_PROG 343e3f8caf8af5986ebaf0bdc13b5c71)
+    set(MD5_PPM_3x2_FLOAT 1a75f36e5904d6fc3a85a43da9ad89bb)
+  else()
+    set(MD5_JPEG_3x2_FLOAT_PROG 9bca803d2042bd1eb03819e2bf92b3e5)
+    set(MD5_PPM_3x2_FLOAT f6bfab038438ed8f5522fbd33595dcdc)
+  endif()
+  set(MD5_JPEG_420_ISLOW_ARI e986fb0a637a8d833d96e8a6d6d84ea1)
+  set(MD5_JPEG_444_ISLOW_PROGARI 0a8f1c8f66e113c3cf635df0a475a617)
+  set(MD5_PPM_420M_IFAST_ARI 72b59a99bcf1de24c5b27d151bde2437)
+  set(MD5_JPEG_420_ISLOW 9a68f56bc76e466aa7e52f415d0f4a5f)
+  set(MD5_PPM_420M_ISLOW_2_1 9f9de8c0612f8d06869b960b05abf9c9)
+  set(MD5_PPM_420M_ISLOW_15_8 b6875bc070720b899566cc06459b63b7)
+  set(MD5_PPM_420M_ISLOW_13_8 bc3452573c8152f6ae552939ee19f82f)
+  set(MD5_PPM_420M_ISLOW_11_8 d8cc73c0aaacd4556569b59437ba00a5)
+  set(MD5_PPM_420M_ISLOW_9_8 d25e61bc7eac0002f5b393aa223747b6)
+  set(MD5_PPM_420M_ISLOW_7_8 ddb564b7c74a09494016d6cd7502a946)
+  set(MD5_PPM_420M_ISLOW_3_4 8ed8e68808c3fbc4ea764fc9d2968646)
+  set(MD5_PPM_420M_ISLOW_5_8 a3363274999da2366a024efae6d16c9b)
+  set(MD5_PPM_420M_ISLOW_1_2 e692a315cea26b988c8e8b29a5dbcd81)
+  set(MD5_PPM_420M_ISLOW_3_8 79eca9175652ced755155c90e785a996)
+  set(MD5_PPM_420M_ISLOW_1_4 79cd778f8bf1a117690052cacdd54eca)
+  set(MD5_PPM_420M_ISLOW_1_8 391b3d4aca640c8567d6f8745eb2142f)
+  set(MD5_BMP_420_ISLOW_256 4980185e3776e89bd931736e1cddeee6)
+  set(MD5_BMP_420_ISLOW_565 bf9d13e16c4923b92e1faa604d7922cb)
+  set(MD5_BMP_420_ISLOW_565D 6bde71526acc44bcff76f696df8638d2)
+  set(MD5_BMP_420M_ISLOW_565 8dc0185245353cfa32ad97027342216f)
+  set(MD5_BMP_420M_ISLOW_565D d1be3a3339166255e76fa50a0d70d73e)
+  set(MD5_JPEG_CROP b4197f377e621c4e9b1d20471432610d)
+endif()
+
+if(WITH_JAVA)
+  add_test(TJUnitTest
+    ${JAVA_RUNTIME} -cp java/${OBJDIR}turbojpeg.jar
+      -Djava.library.path=${CMAKE_CURRENT_BINARY_DIR}/${OBJDIR}
+      TJUnitTest)
+  add_test(TJUnitTest-yuv
+    ${JAVA_RUNTIME} -cp java/${OBJDIR}turbojpeg.jar
+      -Djava.library.path=${CMAKE_CURRENT_BINARY_DIR}/${OBJDIR}
+      TJUnitTest -yuv)
+  add_test(TJUnitTest-yuv-nopad
+    ${JAVA_RUNTIME} -cp java/${OBJDIR}turbojpeg.jar
+      -Djava.library.path=${CMAKE_CURRENT_BINARY_DIR}/${OBJDIR}
+      TJUnitTest -yuv -noyuvpad)
+  add_test(TJUnitTest-bi
+    ${JAVA_RUNTIME} -cp java/${OBJDIR}turbojpeg.jar
+      -Djava.library.path=${CMAKE_CURRENT_BINARY_DIR}/${OBJDIR}
+      TJUnitTest -bi)
+  add_test(TJUnitTest-bi-yuv
+    ${JAVA_RUNTIME} -cp java/${OBJDIR}turbojpeg.jar
+      -Djava.library.path=${CMAKE_CURRENT_BINARY_DIR}/${OBJDIR}
+      TJUnitTest -bi -yuv)
+  add_test(TJUnitTest-bi-yuv-nopad
+    ${JAVA_RUNTIME} -cp java/${OBJDIR}turbojpeg.jar
+      -Djava.library.path=${CMAKE_CURRENT_BINARY_DIR}/${OBJDIR}
+      TJUnitTest -bi -yuv -noyuvpad)
+endif()
+
+set(TEST_LIBTYPES "")
+if(ENABLE_SHARED)
+  set(TEST_LIBTYPES ${TEST_LIBTYPES} shared)
+endif()
+if(ENABLE_STATIC)
+  set(TEST_LIBTYPES ${TEST_LIBTYPES} static)
+endif()
+
+foreach(libtype ${TEST_LIBTYPES})
+  if(libtype STREQUAL "shared")
+    set(dir sharedlib/)
+  else()
+    set(dir "")
+    set(suffix -static)
+  endif()
+  if(WITH_TURBOJPEG)
+    add_test(tjunittest${suffix} tjunittest${suffix})
+    add_test(tjunittest${suffix}-alloc tjunittest${suffix} -alloc)
+    add_test(tjunittest${suffix}-yuv tjunittest${suffix} -yuv)
+    add_test(tjunittest${suffix}-yuv-alloc tjunittest${suffix} -yuv -alloc)
+    add_test(tjunittest${suffix}-yuv-nopad tjunittest${suffix} -yuv -noyuvpad)
+  endif()
+
+  # These tests are carefully chosen to provide full coverage of as many of the
+  # underlying algorithms as possible (including all of the SIMD-accelerated
+  # ones.)
+
+  # CC: null  SAMP: fullsize  FDCT: islow  ENT: huff
+  add_test(cjpeg${suffix}-rgb-islow
+    ${dir}cjpeg${suffix} -rgb -dct int -outfile testout_rgb_islow.jpg
+      ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+  add_test(cjpeg${suffix}-rgb-islow-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_RGB_ISLOW} -DFILE=testout_rgb_islow.jpg
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: null  SAMP: fullsize  IDCT: islow  ENT: huff
+  add_test(djpeg${suffix}-rgb-islow
+    ${dir}djpeg${suffix} -dct int -ppm -outfile testout_rgb_islow.ppm
+      testout_rgb_islow.jpg)
+  add_test(djpeg${suffix}-rgb-islow-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_RGB_ISLOW} -DFILE=testout_rgb_islow.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  if(NOT WITH_12BIT)
+    # CC: RGB->RGB565  SAMP: fullsize  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-rgb-islow-565
+      ${dir}djpeg${suffix} -dct int -rgb565 -dither none -bmp
+        -outfile testout_rgb_islow_565.bmp testout_rgb_islow.jpg)
+    add_test(djpeg${suffix}-rgb-islow-565-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_RGB_ISLOW_565}
+        -DFILE=testout_rgb_islow_565.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: RGB->RGB565 (dithered)  SAMP: fullsize  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-rgb-islow-565D
+      ${dir}djpeg${suffix} -dct int -rgb565 -bmp
+        -outfile testout_rgb_islow_565D.bmp testout_rgb_islow.jpg)
+    add_test(djpeg${suffix}-rgb-islow-565D-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_RGB_ISLOW_565D}
+        -DFILE=testout_rgb_islow_565D.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  endif()
+
+  # CC: RGB->YCC  SAMP: fullsize/h2v1  FDCT: ifast  ENT: 2-pass huff
+  add_test(cjpeg${suffix}-422-ifast-opt
+    ${dir}cjpeg${suffix} -sample 2x1 -dct fast -opt
+      -outfile testout_422_ifast_opt.jpg
+      ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+  add_test(cjpeg${suffix}-422-ifast-opt-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_422_IFAST_OPT}
+      -DFILE=testout_422_ifast_opt.jpg
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: YCC->RGB  SAMP: fullsize/h2v1 fancy  IDCT: ifast  ENT: huff
+  add_test(djpeg${suffix}-422-ifast
+    ${dir}djpeg${suffix} -dct fast -outfile testout_422_ifast.ppm
+      testout_422_ifast_opt.jpg)
+  add_test(djpeg${suffix}-422-ifast-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_422_IFAST} -DFILE=testout_422_ifast.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: YCC->RGB  SAMP: h2v1 merged  IDCT: ifast  ENT: huff
+  add_test(djpeg${suffix}-422m-ifast
+    ${dir}djpeg${suffix} -dct fast -nosmooth -outfile testout_422m_ifast.ppm
+      testout_422_ifast_opt.jpg)
+  add_test(djpeg${suffix}-422m-ifast-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_422M_IFAST} -DFILE=testout_422m_ifast.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  if(NOT WITH_12BIT)
+    # CC: YCC->RGB565  SAMP: h2v1 merged  IDCT: ifast  ENT: huff
+    add_test(djpeg${suffix}-422m-ifast-565
+      ${dir}djpeg${suffix} -dct int -nosmooth -rgb565 -dither none -bmp
+        -outfile testout_422m_ifast_565.bmp testout_422_ifast_opt.jpg)
+    add_test(djpeg${suffix}-422m-ifast-565-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_422M_IFAST_565}
+        -DFILE=testout_422m_ifast_565.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: YCC->RGB565 (dithered)  SAMP: h2v1 merged  IDCT: ifast  ENT: huff
+    add_test(djpeg${suffix}-422m-ifast-565D
+      ${dir}djpeg${suffix} -dct int -nosmooth -rgb565 -bmp
+        -outfile testout_422m_ifast_565D.bmp testout_422_ifast_opt.jpg)
+    add_test(djpeg${suffix}-422m-ifast-565D-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_422M_IFAST_565D}
+        -DFILE=testout_422m_ifast_565D.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  endif()
+
+  # CC: RGB->YCC  SAMP: fullsize/h2v2  FDCT: ifast  ENT: prog huff
+  add_test(cjpeg${suffix}-420-q100-ifast-prog
+    ${dir}cjpeg${suffix} -sample 2x2 -quality 100 -dct fast -prog
+      -outfile testout_420_q100_ifast_prog.jpg
+      ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+  add_test(cjpeg${suffix}-420-q100-ifast-prog-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_420_IFAST_Q100_PROG}
+      -DFILE=testout_420_q100_ifast_prog.jpg
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: YCC->RGB  SAMP: fullsize/h2v2 fancy  IDCT: ifast  ENT: prog huff
+  add_test(djpeg${suffix}-420-q100-ifast-prog
+    ${dir}djpeg${suffix} -dct fast -outfile testout_420_q100_ifast.ppm
+      testout_420_q100_ifast_prog.jpg)
+  add_test(djpeg${suffix}-420-q100-ifast-prog-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_420_Q100_IFAST}
+      -DFILE=testout_420_q100_ifast.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: YCC->RGB  SAMP: h2v2 merged  IDCT: ifast  ENT: prog huff
+  add_test(djpeg${suffix}-420m-q100-ifast-prog
+    ${dir}djpeg${suffix} -dct fast -nosmooth
+      -outfile testout_420m_q100_ifast.ppm testout_420_q100_ifast_prog.jpg)
+  add_test(djpeg${suffix}-420m-q100-ifast-prog-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_420M_Q100_IFAST}
+      -DFILE=testout_420m_q100_ifast.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+
+  # CC: RGB->Gray  SAMP: fullsize  FDCT: islow  ENT: huff
+  add_test(cjpeg${suffix}-gray-islow
+    ${dir}cjpeg${suffix} -gray -dct int -outfile testout_gray_islow.jpg
+      ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+  add_test(cjpeg${suffix}-gray-islow-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_GRAY_ISLOW}
+      -DFILE=testout_gray_islow.jpg
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: Gray->Gray  SAMP: fullsize  IDCT: islow  ENT: huff
+  add_test(djpeg${suffix}-gray-islow
+    ${dir}djpeg${suffix} -dct int -outfile testout_gray_islow.ppm
+      testout_gray_islow.jpg)
+  add_test(djpeg${suffix}-gray-islow-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_GRAY_ISLOW}
+      -DFILE=testout_gray_islow.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: Gray->RGB  SAMP: fullsize  IDCT: islow  ENT: huff
+  add_test(djpeg${suffix}-gray-islow-rgb
+    ${dir}djpeg${suffix} -dct int -rgb -outfile testout_gray_islow_rgb.ppm
+      testout_gray_islow.jpg)
+  add_test(djpeg${suffix}-gray-islow-rgb-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_GRAY_ISLOW_RGB}
+      -DFILE=testout_gray_islow_rgb.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  if(NOT WITH_12BIT)
+    # CC: Gray->RGB565  SAMP: fullsize  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-gray-islow-565
+      ${dir}djpeg${suffix} -dct int -rgb565 -dither none -bmp
+        -outfile testout_gray_islow_565.bmp testout_gray_islow.jpg)
+    add_test(djpeg${suffix}-gray-islow-565-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_GRAY_ISLOW_565}
+        -DFILE=testout_gray_islow_565.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: Gray->RGB565 (dithered)  SAMP: fullsize  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-gray-islow-565D
+      ${dir}djpeg${suffix} -dct int -rgb565 -bmp
+        -outfile testout_gray_islow_565D.bmp testout_gray_islow.jpg)
+    add_test(djpeg${suffix}-gray-islow-565D-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_GRAY_ISLOW_565D}
+        -DFILE=testout_gray_islow_565D.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  endif()
+
+  # CC: RGB->YCC  SAMP: fullsize smooth/h2v2 smooth  FDCT: islow
+  # ENT: 2-pass huff
+  add_test(cjpeg${suffix}-420s-ifast-opt
+    ${dir}cjpeg${suffix} -sample 2x2 -smooth 1 -dct int -opt -outfile
+      testout_420s_ifast_opt.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+  add_test(cjpeg${suffix}-420s-ifast-opt-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_420S_IFAST_OPT}
+      -DFILE=testout_420s_ifast_opt.jpg
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+
+  # CC: RGB->YCC  SAMP: fullsize/int  FDCT: float  ENT: prog huff
+  add_test(cjpeg${suffix}-3x2-float-prog
+    ${dir}cjpeg${suffix} -sample 3x2 -dct float -prog
+      -outfile testout_3x2_float_prog.jpg
+      ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+  add_test(cjpeg${suffix}-3x2-float-prog-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_3x2_FLOAT_PROG}
+      -DFILE=testout_3x2_float_prog.jpg
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  # CC: YCC->RGB  SAMP: fullsize/int  IDCT: float  ENT: prog huff
+  add_test(djpeg${suffix}-3x2-float-prog
+    ${dir}djpeg${suffix} -dct float -outfile testout_3x2_float.ppm
+      testout_3x2_float_prog.jpg)
+  add_test(djpeg${suffix}-3x2-float-prog-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_PPM_3x2_FLOAT} -DFILE=testout_3x2_float.ppm
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+
+  if(WITH_ARITH_ENC)
+    # CC: YCC->RGB  SAMP: fullsize/h2v2  FDCT: islow  ENT: arith
+    add_test(cjpeg${suffix}-420-islow-ari
+      ${dir}cjpeg${suffix} -dct int -arithmetic
+        -outfile testout_420_islow_ari.jpg
+        ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+    add_test(cjpeg${suffix}-420-islow-ari-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_420_ISLOW_ARI}
+        -DFILE=testout_420_islow_ari.jpg
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    add_test(jpegtran${suffix}-420-islow-ari
+      ${dir}jpegtran${suffix} -arithmetic
+        -outfile testout_420_islow_ari.jpg
+        ${CMAKE_SOURCE_DIR}/testimages/testimgint.jpg)
+    add_test(jpegtran${suffix}-420-islow-ari-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_420_ISLOW_ARI}
+        -DFILE=testout_420_islow_ari.jpg
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: YCC->RGB  SAMP: fullsize  FDCT: islow  ENT: prog arith
+    add_test(cjpeg${suffix}-444-islow-progari
+      ${dir}cjpeg${suffix} -sample 1x1 -dct int -progressive -arithmetic
+        -outfile testout_444_islow_progari.jpg
+        ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
+    add_test(cjpeg${suffix}-444-islow-progari-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_444_ISLOW_PROGARI}
+        -DFILE=testout_444_islow_progari.jpg
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  endif()
+  if(WITH_ARITH_DEC)
+    # CC: RGB->YCC  SAMP: h2v2 merged  IDCT: ifast  ENT: arith
+    add_test(djpeg${suffix}-420m-ifast-ari
+      ${dir}djpeg${suffix} -fast -ppm -outfile testout_420m_ifast_ari.ppm
+        ${CMAKE_SOURCE_DIR}/testimages/testimgari.jpg)
+    add_test(djpeg${suffix}-420m-ifast-ari-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_PPM_420M_IFAST_ARI}
+        -DFILE=testout_420m_ifast_ari.ppm
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    add_test(jpegtran${suffix}-420-islow
+      ${dir}jpegtran${suffix} -outfile testout_420_islow.jpg
+        ${CMAKE_SOURCE_DIR}/testimages/testimgari.jpg)
+    add_test(jpegtran${suffix}-420-islow-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_420_ISLOW}
+        -DFILE=testout_420_islow.jpg
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  endif()
+
+  # 2/1--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 16x16 islow  ENT: huff
+  # 15/8--  CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 15x15 islow  ENT: huff
+  # 13/8--  CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 13x13 islow  ENT: huff
+  # 11/8--  CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 11x11 islow  ENT: huff
+  # 9/8--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 9x9 islow  ENT: huff
+  # 7/8--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 7x7 islow/14x14 islow
+  #         ENT: huff
+  # 3/4--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 6x6 islow/12x12 islow
+  #         ENT: huff
+  # 5/8--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 5x5 islow/10x10 islow
+  #         ENT: huff
+  # 1/2--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 4x4 islow/8x8 islow
+  #         ENT: huff
+  # 3/8--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 3x3 islow/6x6 islow
+  #         ENT: huff
+  # 1/4--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 2x2 islow/4x4 islow
+  #         ENT: huff
+  # 1/8--   CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 1x1 islow/2x2 islow
+  #         ENT: huff
+  foreach(scale 2_1 15_8 13_8 11_8 9_8 7_8 3_4 5_8 1_2 3_8 1_4 1_8)
+    string(REGEX REPLACE "_" "/" scalearg ${scale})
+    add_test(djpeg${suffix}-420m-islow-${scale}
+      ${dir}djpeg${suffix} -dct int -scale ${scalearg} -nosmooth -ppm
+        -outfile testout_420m_islow_${scale}.ppm
+        ${CMAKE_SOURCE_DIR}/testimages/${TESTORIG})
+    add_test(djpeg${suffix}-420m-islow-${scale}-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_PPM_420M_ISLOW_${scale}}
+        -DFILE=testout_420m_islow_${scale}.ppm
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  endforeach()
+
+  if(NOT WITH_12BIT)
+    # CC: YCC->RGB (dithered)  SAMP: h2v2 fancy  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-420-islow-256
+      ${dir}djpeg${suffix} -dct int -colors 256 -bmp
+        -outfile testout_420_islow_256.bmp
+        ${CMAKE_SOURCE_DIR}/testimages/${TESTORIG})
+    add_test(djpeg${suffix}-420-islow-256-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_420_ISLOW_256}
+        -DFILE=testout_420_islow_256.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: YCC->RGB565  SAMP: h2v2 fancy  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-420-islow-565
+      ${dir}djpeg${suffix} -dct int -rgb565 -dither none -bmp
+        -outfile testout_420_islow_565.bmp
+        ${CMAKE_SOURCE_DIR}/testimages/${TESTORIG})
+    add_test(djpeg${suffix}-420-islow-565-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_420_ISLOW_565}
+        -DFILE=testout_420_islow_565.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: YCC->RGB565 (dithered)  SAMP: h2v2 fancy  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-420-islow-565D
+      ${dir}djpeg${suffix} -dct int -rgb565 -bmp
+        -outfile testout_420_islow_565D.bmp
+        ${CMAKE_SOURCE_DIR}/testimages/${TESTORIG})
+    add_test(djpeg${suffix}-420-islow-565D-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_420_ISLOW_565D}
+        -DFILE=testout_420_islow_565D.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: YCC->RGB565  SAMP: h2v2 merged  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-420m-islow-565
+      ${dir}djpeg${suffix} -dct int -nosmooth -rgb565 -dither none -bmp
+        -outfile testout_420m_islow_565.bmp
+        ${CMAKE_SOURCE_DIR}/testimages/${TESTORIG})
+    add_test(djpeg${suffix}-420m-islow-565-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_420M_ISLOW_565}
+        -DFILE=testout_420m_islow_565.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+    # CC: YCC->RGB565 (dithered)  SAMP: h2v2 merged  IDCT: islow  ENT: huff
+    add_test(djpeg${suffix}-420m-islow-565D
+      ${dir}djpeg${suffix} -dct int -nosmooth -rgb565 -bmp
+        -outfile testout_420m_islow_565D.bmp
+        ${CMAKE_SOURCE_DIR}/testimages/${TESTORIG})
+    add_test(djpeg${suffix}-420m-islow-565D-cmp
+      ${CMAKE_COMMAND} -DMD5=${MD5_BMP_420M_ISLOW_565D}
+        -DFILE=testout_420m_islow_565D.bmp
+        -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+  endif()
+  add_test(jpegtran${suffix}-crop
+    ${dir}jpegtran${suffix} -crop 120x90+20+50 -transpose -perfect
+      -outfile testout_crop.jpg ${CMAKE_SOURCE_DIR}/testimages/${TESTORIG})
+  add_test(jpegtran${suffix}-crop-cmp
+    ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_CROP} -DFILE=testout_crop.jpg
+      -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
+
+endforeach()
+
+add_custom_target(testclean COMMAND ${CMAKE_COMMAND} -P
+  ${CMAKE_SOURCE_DIR}/cmakescripts/testclean.cmake)
+
+
+#
+# Installer
+#
+
+if(MSVC)
+  set(INST_PLATFORM "Visual C++")
+  set(INST_NAME ${CMAKE_PROJECT_NAME}-${VERSION}-vc)
+  set(INST_REG_NAME ${CMAKE_PROJECT_NAME})
+elseif(MINGW)
+  set(INST_PLATFORM GCC)
+  set(INST_NAME ${CMAKE_PROJECT_NAME}-${VERSION}-gcc)
+  set(INST_REG_NAME ${CMAKE_PROJECT_NAME}-gcc)
+  set(INST_DEFS -DGCC)
+endif()
+
+if(64BIT)
+  set(INST_PLATFORM "${INST_PLATFORM} 64-bit")
+  set(INST_NAME ${INST_NAME}64)
+  set(INST_REG_NAME ${INST_DIR}64)
+  set(INST_DEFS ${INST_DEFS} -DWIN64)
+endif()
+
+if(WITH_JAVA)
+  set(INST_DEFS ${INST_DEFS} -DJAVA)
+endif()
+
+if(MSVC_IDE)
+  set(INST_DEFS ${INST_DEFS} "-DBUILDDIR=${CMAKE_CFG_INTDIR}\\")
+else()
+  set(INST_DEFS ${INST_DEFS} "-DBUILDDIR=")
+endif()
+
+STRING(REGEX REPLACE "/" "\\\\" INST_DIR ${CMAKE_INSTALL_PREFIX})
+
+configure_file(release/libjpeg-turbo.nsi.in libjpeg-turbo.nsi @ONLY)
+
+if(WITH_JAVA)
+  set(JAVA_DEPEND java)
+endif()
+add_custom_target(installer
+  makensis -nocd ${INST_DEFS} libjpeg-turbo.nsi
+  DEPENDS jpeg jpeg-static turbojpeg turbojpeg-static rdjpgcom wrjpgcom
+    cjpeg djpeg jpegtran tjbench ${JAVA_DEPEND}
+  SOURCES libjpeg-turbo.nsi)
+
+if(WITH_TURBOJPEG)
+  if(ENABLE_SHARED)
+    install(TARGETS turbojpeg tjbench
+      ARCHIVE DESTINATION lib
+      LIBRARY DESTINATION lib
+      RUNTIME DESTINATION bin)
+  endif()
+  if(ENABLE_STATIC)
+    install(TARGETS turbojpeg-static ARCHIVE DESTINATION lib)
+    if(NOT ENABLE_SHARED)
+      install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/tjbench-static.exe
+        DESTINATION bin RENAME tjbench.exe)
+    endif()
+  endif()
+  install(FILES ${CMAKE_SOURCE_DIR}/turbojpeg.h DESTINATION include)
+endif()
+
+if(ENABLE_STATIC)
+  install(TARGETS jpeg-static ARCHIVE DESTINATION lib)
+  if(NOT ENABLE_SHARED)
+    install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/cjpeg-static.exe
+      DESTINATION bin RENAME cjpeg.exe)
+    install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/djpeg-static.exe
+      DESTINATION bin RENAME djpeg.exe)
+    install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/jpegtran-static.exe
+      DESTINATION bin RENAME jpegtran.exe)
+  endif()
+endif()
+
+install(TARGETS rdjpgcom wrjpgcom RUNTIME DESTINATION bin)
+
+install(FILES ${CMAKE_SOURCE_DIR}/README ${CMAKE_SOURCE_DIR}/README-turbo.txt
+  ${CMAKE_SOURCE_DIR}/example.c ${CMAKE_SOURCE_DIR}/libjpeg.txt
+  ${CMAKE_SOURCE_DIR}/structure.txt ${CMAKE_SOURCE_DIR}/usage.txt
+  ${CMAKE_SOURCE_DIR}/wizard.txt
+  DESTINATION doc)
+
+install(FILES ${CMAKE_BINARY_DIR}/jconfig.h ${CMAKE_SOURCE_DIR}/jerror.h
+  ${CMAKE_SOURCE_DIR}/jmorecfg.h ${CMAKE_SOURCE_DIR}/jpeglib.h
+  DESTINATION include)

ChangeLog.txt

@@ -0,0 +1,706 @@
+1.4.1
+=====
+
+[1] tjbench now properly handles CMYK/YCCK JPEG files.  Passing an argument of
+-cmyk (instead of, for instance, -rgb) will cause tjbench to internally convert
+the source bitmap to CMYK prior to compression, to generate YCCK JPEG files,
+and to internally convert the decompressed CMYK pixels back to RGB after
+decompression (the latter is done automatically if a CMYK or YCCK JPEG is
+passed to tjbench as a source image.)  The CMYK<->RGB conversion operation is
+not benchmarked.  NOTE: The quick & dirty CMYK<->RGB conversions that tjbench
+uses are suitable for testing only.  Proper conversion between CMYK and RGB
+requires a color management system.
+
+[2] 'make test' now performs additional bitwise regression tests using tjbench,
+mainly for the purpose of testing compression from/decompression to a subregion
+of a larger image buffer.
+
+[3] 'make test' no longer tests the regression of the floating point DCT/IDCT
+by default, since the results of those tests can vary if the algorithms in
+question are not implemented using SIMD instructions on a particular platform.
+See the comments in Makefile.am for information on how to re-enable the tests
+and to specify an expected result for them based on the particulars of your
+platform.
+
+[4] The NULL color conversion routines have been significantly optimized,
+which speeds up the compression of RGB and CMYK JPEGs by 5-20% when using
+64-bit code and 0-3% when using 32-bit code, and the decompression of those
+images by 10-30% when using 64-bit code and 3-12% when using 32-bit code.
+
+[5] Fixed an "illegal instruction" error that occurred when djpeg from a
+SIMD-enabled libjpeg-turbo MIPS build was executed with the -nosmooth option on
+a MIPS machine that lacked DSPr2 support.  The MIPS SIMD routines for h2v1 and
+h2v2 merged upsampling were not properly checking for the existence of DSPr2.
+
+[6] Performance has been improved significantly on 64-bit non-Linux and
+non-Windows platforms (generally 10-20% faster compression and 5-10% faster
+decompression.)  Due to an oversight, the 64-bit version of the accelerated
+Huffman codec was not being compiled in when libjpeg-turbo was built on
+platforms other than Windows or Linux.  Oops.
+
+[7] Fixed an extremely rare bug in the Huffman encoder that caused 64-bit
+builds of libjpeg-turbo to incorrectly encode a few specific test images when
+quality=98, an optimized Huffman table, and the slow integer forward DCT were
+used.
+
+[8] The Windows (CMake) build system now supports building only static or only
+shared libraries.  This is accomplished by adding either -DENABLE_STATIC=0 or
+-DENABLE_SHARED=0 to the CMake command line.
+
+[9] TurboJPEG API functions will now return an error code if a warning is
+triggered in the underlying libjpeg API.  For instance, if a JPEG file is
+corrupt, the TurboJPEG decompression functions will attempt to decompress
+as much of the image as possible, but those functions will now return -1 to
+indicate that the decompression was not entirely successful.
+
+[10] Fixed a bug in the MIPS DSPr2 4:2:2 fancy upsampling routine that caused a
+buffer overflow (and subsequent segfault) when decompressing a 4:2:2 JPEG image
+in which the right-most MCU was 5 or 6 pixels wide.
+
+
+1.4.0
+=====
+
+[1] Fixed a build issue on OS X PowerPC platforms (md5cmp failed to build
+because OS X does not provide the le32toh() and htole32() functions.)
+
+[2] The non-SIMD RGB565 color conversion code did not work correctly on big
+endian machines.  This has been fixed.
+
+[3] Fixed an issue in tjPlaneSizeYUV() whereby it would erroneously return 1
+instead of -1 if componentID was > 0 and subsamp was TJSAMP_GRAY.
+
+[3] Fixed an issue in tjBufSizeYUV2() whereby it would erroneously return 0
+instead of -1 if width was < 1.
+
+[5] The Huffman encoder now uses clz and bsr instructions for bit counting on
+ARM64 platforms (see 1.4 beta1 [5].)
+
+[6] The close() method in the TJCompressor and TJDecompressor Java classes is
+now idempotent.  Previously, that method would call the native tjDestroy()
+function even if the TurboJPEG instance had already been destroyed.  This
+caused an exception to be thrown during finalization, if the close() method had
+already been called.  The exception was caught, but it was still an expensive
+operation.
+
+[7] The TurboJPEG API previously generated an error ("Could not determine
+subsampling type for JPEG image") when attempting to decompress grayscale JPEG
+images that were compressed with a sampling factor other than 1 (for instance,
+with 'cjpeg -grayscale -sample 2x2').  Subsampling technically has no meaning
+with grayscale JPEGs, and thus the horizontal and vertical sampling factors
+for such images are ignored by the decompressor.  However, the TurboJPEG API
+was being too rigid and was expecting the sampling factors to be equal to 1
+before it treated the image as a grayscale JPEG.
+
+[8] cjpeg, djpeg, and jpegtran now accept an argument of -version, which will
+print the library version and exit.
+
+[9] Referring to 1.4 beta1 [15], another extremely rare circumstance was
+discovered under which the Huffman encoder's local buffer can be overrun
+when a buffered destination manager is being used and an
+extremely-high-frequency block (basically junk image data) is being encoded.
+Even though the Huffman local buffer was increased from 128 bytes to 136 bytes
+to address the previous issue, the new issue caused even the larger buffer to
+be overrun.  Further analysis reveals that, in the absolute worst case (such as
+setting alternating AC coefficients to 32767 and -32768 in the JPEG scanning
+order), the Huffman encoder can produce encoded blocks that approach double the
+size of the unencoded blocks.  Thus, the Huffman local buffer was increased to
+256 bytes, which should prevent any such issue from re-occurring in the future.
+
+[10] The new tjPlaneSizeYUV(), tjPlaneWidth(), and tjPlaneHeight() functions
+were not actually usable on any platform except OS X and Windows, because
+those functions were not included in the libturbojpeg mapfile.  This has been
+fixed.
+
+[11] Restored the JPP(), JMETHOD(), and FAR macros in the libjpeg-turbo header
+files.  The JPP() and JMETHOD() macros were originally implemented in libjpeg
+as a way of supporting non-ANSI compilers that lacked support for prototype
+parameters.  libjpeg-turbo has never supported such compilers, but some
+software packages still use the macros to define their own prototypes.
+Similarly, libjpeg-turbo has never supported MS-DOS and other platforms that
+have far symbols, but some software packages still use the FAR macro.  A pretty
+good argument can be made that this is a bad practice on the part of the
+software in question, but since this affects more than one package, it's just
+easier to fix it here.
+
+[12] Fixed issues that were preventing the ARM 64-bit SIMD code from compiling
+for iOS, and included an ARMv8 architecture in all of the binaries installed by
+the "official" libjpeg-turbo SDK for OS X.
+
+
+1.3.90 (1.4 beta1)
+==================
+
+[1] New features in the TurboJPEG API:
+-- YUV planar images can now be generated with an arbitrary line padding
+(previously only 4-byte padding, which was compatible with X Video, was
+supported.)
+-- The decompress-to-YUV function has been extended to support image scaling.
+-- JPEG images can now be compressed from YUV planar source images.
+-- YUV planar images can now be decoded into RGB or grayscale images.
+-- 4:1:1 subsampling is now supported.  This is mainly included for
+compatibility, since 4:1:1 is not fully accelerated in libjpeg-turbo and has no
+significant advantages relative to 4:2:0.
+-- CMYK images are now supported.  This feature allows CMYK source images to be
+compressed to YCCK JPEGs and YCCK or CMYK JPEGs to be decompressed to CMYK
+destination images.  Conversion between CMYK/YCCK and RGB or YUV images is not
+supported.  Such conversion requires a color management system and is thus out
+of scope for a codec library.
+-- The handling of YUV images in the Java API has been significantly refactored
+and should now be much more intuitive.
+-- The Java API now supports encoding a YUV image from an arbitrary position in
+a large image buffer.
+-- All of the YUV functions now have a corresponding function that operates on
+separate image planes instead of a unified image buffer.  This allows for
+compressing/decoding from or decompressing/encoding to a subregion of a larger
+YUV image.  It also allows for handling YUV formats that swap the order of the
+U and V planes.
+
+[2] Added SIMD acceleration for DSPr2-capable MIPS platforms.  This speeds up
+the compression of full-color JPEGs by 70-80% on such platforms and
+decompression by 25-35%.
+
+[3] If an application attempts to decompress a Huffman-coded JPEG image whose
+header does not contain Huffman tables, libjpeg-turbo will now insert the
+default Huffman tables.  In order to save space, many motion JPEG video frames
+are encoded without the default Huffman tables, so these frames can now be
+successfully decompressed by libjpeg-turbo without additional work on the part
+of the application.  An application can still override the Huffman tables, for
+instance to re-use tables from a previous frame of the same video.
+
+[4] The Mac packaging system now uses pkgbuild and productbuild rather than
+PackageMaker (which is obsolete and no longer supported.)  This means that
+OS X 10.6 "Snow Leopard" or later must be used when packaging libjpeg-turbo,
+although the packages produced can be installed on OS X 10.5 "Leopard" or
+later.  OS X 10.4 "Tiger" is no longer supported.
+
+[5] The Huffman encoder now uses clz and bsr instructions for bit counting on
+ARM platforms rather than a lookup table.  This reduces the memory footprint
+by 64k, which may be important for some mobile applications.  Out of four
+Android devices that were tested, two demonstrated a small overall performance
+loss (~3-4% on average) with ARMv6 code and a small gain (also ~3-4%) with
+ARMv7 code when enabling this new feature, but the other two devices
+demonstrated a significant overall performance gain with both ARMv6 and ARMv7
+code (~10-20%) when enabling the feature.  Actual mileage may vary.
+
+[6] Worked around an issue with Visual C++ 2010 and later that caused incorrect
+pixels to be generated when decompressing a JPEG image to a 256-color bitmap,
+if compiler optimization was enabled when libjpeg-turbo was built.  This caused
+the regression tests to fail when doing a release build under Visual C++ 2010
+and later.
+
+[7] Improved the accuracy and performance of the non-SIMD implementation of the
+floating point inverse DCT (using code borrowed from libjpeg v8a and later.)
+The accuracy of this implementation now matches the accuracy of the SSE/SSE2
+implementation.  Note, however, that the floating point DCT/IDCT algorithms are
+mainly a legacy feature.  They generally do not produce significantly better
+accuracy than the slow integer DCT/IDCT algorithms, and they are quite a bit
+slower.
+
+[8] Added a new output colorspace (JCS_RGB565) to the libjpeg API that allows
+for decompressing JPEG images into RGB565 (16-bit) pixels.  If dithering is not
+used, then this code path is SIMD-accelerated on ARM platforms.
+
+[9] Numerous obsolete features, such as support for non-ANSI compilers and
+support for the MS-DOS memory model, were removed from the libjpeg code,
+greatly improving its readability and making it easier to maintain and extend.
+
+[10] Fixed a segfault that occurred when calling output_message() with msg_code
+set to JMSG_COPYRIGHT.
+
+[11] Fixed an issue whereby wrjpgcom was allowing comments longer than 65k
+characters to be passed on the command line, which was causing it to generate
+incorrect JPEG files.
+
+[12] Fixed a bug in the build system that was causing the Windows version of
+wrjpgcom to be built using the rdjpgcom source code.
+
+[13] Restored 12-bit-per-component JPEG support.  A 12-bit version of
+libjpeg-turbo can now be built by passing an argument of --with-12bit to
+configure (Unix) or -DWITH_12BIT=1 to cmake (Windows.)  12-bit JPEG support is
+included only for convenience.  Enabling this feature disables all of the
+performance features in libjpeg-turbo, as well as arithmetic coding and the
+TurboJPEG API.  The resulting library still contains the other libjpeg-turbo
+features (such as the colorspace extensions), but in general, it performs no
+faster than libjpeg v6b.
+
+[14] Added ARM 64-bit SIMD acceleration for the YCC-to-RGB color conversion
+and IDCT algorithms (both are used during JPEG decompression.)  For unknown
+reasons (probably related to clang), this code cannot currently be compiled for
+iOS.
+
+[15] Fixed an extremely rare bug that could cause the Huffman encoder's local
+buffer to overrun when a very high-frequency MCU is compressed using quality
+100 and no subsampling, and when the JPEG output buffer is being dynamically
+resized by the destination manager.  This issue was so rare that, even with a
+test program specifically designed to make the bug occur (by injecting random
+high-frequency YUV data into the compressor), it was reproducible only once in
+about every 25 million iterations.
+
+[16] Fixed an oversight in the TurboJPEG C wrapper:  if any of the JPEG
+compression functions was called repeatedly with the same
+automatically-allocated destination buffer, then TurboJPEG would erroneously
+assume that the jpegSize parameter was equal to the size of the buffer, when in
+fact that parameter was probably equal to the size of the most recently
+compressed JPEG image.  If the size of the previous JPEG image was not as large
+as the current JPEG image, then TurboJPEG would unnecessarily reallocate the
+destination buffer.
+
+
+1.3.1
+=====
+
+[1] On Un*x systems, 'make install' now installs the libjpeg-turbo libraries
+into /opt/libjpeg-turbo/lib32 by default on any 32-bit system, not just x86,
+and into /opt/libjpeg-turbo/lib64 by default on any 64-bit system, not just
+x86-64.  You can override this by overriding either the 'prefix' or 'libdir'
+configure variables.
+
+[2] The Windows installer now places a copy of the TurboJPEG DLLs in the same
+directory as the rest of the libjpeg-turbo binaries.  This was mainly done
+to support TurboVNC 1.3, which bundles the DLLs in its Windows installation.
+When using a 32-bit version of CMake on 64-bit Windows, it is impossible to
+access the c:\WINDOWS\system32 directory, which made it impossible for the
+TurboVNC build scripts to bundle the 64-bit TurboJPEG DLL.
+
+[3] Fixed a bug whereby attempting to encode a progressive JPEG with arithmetic
+entropy coding (by passing arguments of -progressive -arithmetic to cjpeg or
+jpegtran, for instance) would result in an error, "Requested feature was
+omitted at compile time".
+
+[4] Fixed a couple of issues whereby malformed JPEG images would cause
+libjpeg-turbo to use uninitialized memory during decompression.
+
+[5] Fixed an error ("Buffer passed to JPEG library is too small") that occurred
+when calling the TurboJPEG YUV encoding function with a very small (< 5x5)
+source image, and added a unit test to check for this error.
+
+[6] The Java classes should now build properly under Visual Studio 2010 and
+later.
+
+[7] Fixed an issue that prevented SRPMs generated using the in-tree packaging
+tools from being rebuilt on certain newer Linux distributions.
+
+[8] Numerous minor fixes to eliminate compilation and build/packaging system
+warnings, fix cosmetic issues, improve documentation clarity, and other general
+source cleanup.
+
+
+1.3.0
+=====
+
+[1] 'make test' now works properly on FreeBSD, and it no longer requires the
+md5sum executable to be present on other Un*x platforms.
+
+[2] Overhauled the packaging system:
+-- To avoid conflict with vendor-supplied libjpeg-turbo packages, the
+official RPMs and DEBs for libjpeg-turbo have been renamed to
+"libjpeg-turbo-official".
+-- The TurboJPEG libraries are now located under /opt/libjpeg-turbo in the
+official Linux and Mac packages, to avoid conflict with vendor-supplied
+packages and also to streamline the packaging system.
+-- Release packages are now created with the directory structure defined
+by the configure variables "prefix", "bindir", "libdir", etc. (Un*x) or by the
+CMAKE_INSTALL_PREFIX variable (Windows.)  The exception is that the docs are
+always located under the system default documentation directory on Un*x and Mac
+systems, and on Windows, the TurboJPEG DLL is always located in the Windows
+system directory.
+-- To avoid confusion, official libjpeg-turbo packages on Linux/Unix platforms
+(except for Mac) will always install the 32-bit libraries in
+/opt/libjpeg-turbo/lib32 and the 64-bit libraries in /opt/libjpeg-turbo/lib64.
+-- Fixed an issue whereby, in some cases, the libjpeg-turbo executables on Un*x
+systems were not properly linking with the shared libraries installed by the
+same package.
+-- Fixed an issue whereby building the "installer" target on Windows when
+WITH_JAVA=1 would fail if the TurboJPEG JAR had not been previously built.
+-- Building the "install" target on Windows now installs files into the same
+places that the installer does.
+
+[3] Fixed a Huffman encoder bug that prevented I/O suspension from working
+properly.
+
+
+1.2.90 (1.3 beta1)
+==================
+
+[1] Added support for additional scaling factors (3/8, 5/8, 3/4, 7/8, 9/8, 5/4,
+11/8, 3/2, 13/8, 7/4, 15/8, and 2) when decompressing.  Note that the IDCT will
+not be SIMD-accelerated when using any of these new scaling factors.
+
+[2] The TurboJPEG dynamic library is now versioned.  It was not strictly
+necessary to do so, because TurboJPEG uses versioned symbols, and if a function
+changes in an ABI-incompatible way, that function is renamed and a legacy
+function is provided to maintain backward compatibility.  However, certain
+Linux distro maintainers have a policy against accepting any library that isn't
+versioned.
+
+[3] Extended the TurboJPEG Java API so that it can be used to compress a JPEG
+image from and decompress a JPEG image to an arbitrary position in a large
+image buffer.
+
+[4] The tjDecompressToYUV() function now supports the TJFLAG_FASTDCT flag.
+
+[5] The 32-bit supplementary package for amd64 Debian systems now provides
+symlinks in /usr/lib/i386-linux-gnu for the TurboJPEG libraries in /usr/lib32.
+This allows those libraries to be used on MultiArch-compatible systems (such as
+Ubuntu 11 and later) without setting the linker path.
+
+[6] The TurboJPEG Java wrapper should now find the JNI library on Mac systems
+without having to pass -Djava.library.path=/usr/lib to java.
+
+[7] TJBench has been ported to Java to provide a convenient way of validating
+the performance of the TurboJPEG Java API.  It can be run with
+'java -cp turbojpeg.jar TJBench'.
+
+[8] cjpeg can now be used to generate JPEG files with the RGB colorspace
+(feature ported from jpeg-8d.)
+
+[9] The width and height in the -crop argument passed to jpegtran can now be
+suffixed with "f" to indicate that, when the upper left corner of the cropping
+region is automatically moved to the nearest iMCU boundary, the bottom right
+corner should be moved by the same amount.  In other words, this feature causes
+jpegtran to strictly honor the specified width/height rather than the specified
+bottom right corner (feature ported from jpeg-8d.)
+
+[10] JPEG files using the RGB colorspace can now be decompressed into grayscale
+images (feature ported from jpeg-8d.)
+
+[11] Fixed a regression caused by 1.2.1[7] whereby the build would fail with
+multiple "Mismatch in operand sizes" errors when attempting to build the x86
+SIMD code with NASM 0.98.
+
+[12] The in-memory source/destination managers (jpeg_mem_src() and
+jpeg_mem_dest()) are now included by default when building libjpeg-turbo with
+libjpeg v6b or v7 emulation, so that programs can take advantage of these
+functions without requiring the use of the backward-incompatible libjpeg v8
+ABI.  The "age number" of the libjpeg-turbo library on Un*x systems has been
+incremented by 1 to reflect this.  You can disable this feature with a
+configure/CMake switch in order to retain strict API/ABI compatibility with the
+libjpeg v6b or v7 API/ABI (or with previous versions of libjpeg-turbo.)  See
+README-turbo.txt for more details.
+
+[13] Added ARMv7s architecture to libjpeg.a and libturbojpeg.a in the official
+libjpeg-turbo binary package for OS X, so that those libraries can be used to
+build applications that leverage the faster CPUs in the iPhone 5 and iPad 4.
+
+
+1.2.1
+=====
+
+[1] Creating or decoding a JPEG file that uses the RGB colorspace should now
+properly work when the input or output colorspace is one of the libjpeg-turbo
+colorspace extensions.
+
+[2] When libjpeg-turbo was built without SIMD support and merged (non-fancy)
+upsampling was used along with an alpha-enabled colorspace during
+decompression, the unused byte of the decompressed pixels was not being set to
+0xFF.  This has been fixed.  TJUnitTest has also been extended to test for the
+correct behavior of the colorspace extensions when merged upsampling is used.
+
+[3] Fixed a bug whereby the libjpeg-turbo SSE2 SIMD code would not preserve the
+upper 64 bits of xmm6 and xmm7 on Win64 platforms, which violated the Win64
+calling conventions.
+
+[4] Fixed a regression caused by 1.2.0[6] whereby decompressing corrupt JPEG
+images (specifically, images in which the component count was erroneously set
+to a large value) would cause libjpeg-turbo to segfault.
+
+[5] Worked around a severe performance issue with "Bobcat" (AMD Embedded APU)
+processors.  The MASKMOVDQU instruction, which was used by the libjpeg-turbo
+SSE2 SIMD code, is apparently implemented in microcode on AMD processors, and
+it is painfully slow on Bobcat processors in particular.  Eliminating the use
+of this instruction improved performance by an order of magnitude on Bobcat
+processors and by a small amount (typically 5%) on AMD desktop processors.
+
+[6] Added SIMD acceleration for performing 4:2:2 upsampling on NEON-capable ARM
+platforms.  This speeds up the decompression of 4:2:2 JPEGs by 20-25% on such
+platforms.
+
+[7] Fixed a regression caused by 1.2.0[2] whereby, on Linux/x86 platforms
+running the 32-bit SSE2 SIMD code in libjpeg-turbo, decompressing a 4:2:0 or
+4:2:2 JPEG image into a 32-bit (RGBX, BGRX, etc.) buffer without using fancy
+upsampling would produce several incorrect columns of pixels at the right-hand
+side of the output image if each row in the output image was not evenly
+divisible by 16 bytes.
+
+[8] Fixed an issue whereby attempting to build the SIMD extensions with Xcode
+4.3 on OS X platforms would cause NASM to return numerous errors of the form
+"'%define' expects a macro identifier".
+
+[9] Added flags to the TurboJPEG API that allow the caller to force the use of
+either the fast or the accurate DCT/IDCT algorithms in the underlying codec.
+
+
+1.2.0
+=====
+
+[1] Fixed build issue with YASM on Unix systems (the libjpeg-turbo build system
+was not adding the current directory to the assembler include path, so YASM
+was not able to find jsimdcfg.inc.)
+
+[2] Fixed out-of-bounds read in SSE2 SIMD code that occurred when decompressing
+a JPEG image to a bitmap buffer whose size was not a multiple of 16 bytes.
+This was more of an annoyance than an actual bug, since it did not cause any
+actual run-time problems, but the issue showed up when running libjpeg-turbo in
+valgrind.  See http://crbug.com/72399 for more information.
+
+[3] Added a compile-time macro (LIBJPEG_TURBO_VERSION) that can be used to
+check the version of libjpeg-turbo against which an application was compiled.
+
+[4] Added new RGBA/BGRA/ABGR/ARGB colorspace extension constants (libjpeg API)
+and pixel formats (TurboJPEG API), which allow applications to specify that,
+when decompressing to a 4-component RGB buffer, the unused byte should be set
+to 0xFF so that it can be interpreted as an opaque alpha channel.
+
+[5] Fixed regression issue whereby DevIL failed to build against libjpeg-turbo
+because libjpeg-turbo's distributed version of jconfig.h contained an INLINE
+macro, which conflicted with a similar macro in DevIL.  This macro is used only
+internally when building libjpeg-turbo, so it was moved into config.h.
+
+[6] libjpeg-turbo will now correctly decompress erroneous CMYK/YCCK JPEGs whose
+K component is assigned a component ID of 1 instead of 4.  Although these files
+are in violation of the spec, other JPEG implementations handle them
+correctly.
+
+[7] Added ARMv6 and ARMv7 architectures to libjpeg.a and libturbojpeg.a in
+the official libjpeg-turbo binary package for OS X, so that those libraries can
+be used to build both OS X and iOS applications.
+
+
+1.1.90 (1.2 beta1)
+==================
+
+[1] Added a Java wrapper for the TurboJPEG API.  See java/README for more
+details.
+
+[2] The TurboJPEG API can now be used to scale down images during
+decompression.
+
+[3] Added SIMD routines for RGB-to-grayscale color conversion, which
+significantly improves the performance of grayscale JPEG compression from an
+RGB source image.
+
+[4] Improved the performance of the C color conversion routines, which are used
+on platforms for which SIMD acceleration is not available.
+
+[5] Added a function to the TurboJPEG API that performs lossless transforms.
+This function is implemented using the same back end as jpegtran, but it
+performs transcoding entirely in memory and allows multiple transforms and/or
+crop operations to be batched together, so the source coefficients only need to
+be read once.  This is useful when generating image tiles from a single source
+JPEG.
+
+[6] Added tests for the new TurboJPEG scaled decompression and lossless
+transform features to tjbench (the TurboJPEG benchmark, formerly called
+"jpgtest".)
+
+[7] Added support for 4:4:0 (transposed 4:2:2) subsampling in TurboJPEG, which
+was necessary in order for it to read 4:2:2 JPEG files that had been losslessly
+transposed or rotated 90 degrees.
+
+[8] All legacy VirtualGL code has been re-factored, and this has allowed
+libjpeg-turbo, in its entirety, to be re-licensed under a BSD-style license.
+
+[9] libjpeg-turbo can now be built with YASM.
+
+[10] Added SIMD acceleration for ARM Linux and iOS platforms that support
+NEON instructions.
+
+[11] Refactored the TurboJPEG C API and documented it using Doxygen.  The
+TurboJPEG 1.2 API uses pixel formats to define the size and component order of
+the uncompressed source/destination images, and it includes a more efficient
+version of TJBUFSIZE() that computes a worst-case JPEG size based on the level
+of chrominance subsampling.  The refactored implementation of the TurboJPEG API
+now uses the libjpeg memory source and destination managers, which allows the
+TurboJPEG compressor to grow the JPEG buffer as necessary.
+
+[12] Eliminated errors in the output of jpegtran on Windows that occurred when
+the application was invoked using I/O redirection
+(jpegtran <input.jpg >output.jpg).
+
+[13] The inclusion of libjpeg v7 and v8 emulation as well as arithmetic coding
+support in libjpeg-turbo v1.1.0 introduced several new error constants in
+jerror.h, and these were mistakenly enabled for all emulation modes, causing
+the error enum in libjpeg-turbo to sometimes have different values than the
+same enum in libjpeg.  This represents an ABI incompatibility, and it caused
+problems with rare applications that took specific action based on a particular
+error value.  The fix was to include the new error constants conditionally
+based on whether libjpeg v7 or v8 emulation was enabled.
+
+[14] Fixed an issue whereby Windows applications that used libjpeg-turbo would
+fail to compile if the Windows system headers were included before jpeglib.h.
+This issue was caused by a conflict in the definition of the INT32 type.
+
+[15] Fixed 32-bit supplementary package for amd64 Debian systems, which was
+broken by enhancements to the packaging system in 1.1.
+
+[16] When decompressing a JPEG image using an output colorspace of
+JCS_EXT_RGBX, JCS_EXT_BGRX, JCS_EXT_XBGR, or JCS_EXT_XRGB, libjpeg-turbo will
+now set the unused byte to 0xFF, which allows applications to interpret that
+byte as an alpha channel (0xFF = opaque).
+
+
+1.1.1
+=====
+
+[1] Fixed a 1-pixel error in row 0, column 21 of the luminance plane generated
+by tjEncodeYUV().
+
+[2] libjpeg-turbo's accelerated Huffman decoder previously ignored unexpected
+markers found in the middle of the JPEG data stream during decompression.  It
+will now hand off decoding of a particular block to the unaccelerated Huffman
+decoder if an unexpected marker is found, so that the unaccelerated Huffman
+decoder can generate an appropriate warning.
+
+[3] Older versions of MinGW64 prefixed symbol names with underscores by
+default, which differed from the behavior of 64-bit Visual C++.  MinGW64 1.0
+has adopted the behavior of 64-bit Visual C++ as the default, so to accommodate
+this, the libjpeg-turbo SIMD function names are no longer prefixed with an
+underscore when building with MinGW64.  This means that, when building
+libjpeg-turbo with older versions of MinGW64, you will now have to add
+-fno-leading-underscore to the CFLAGS.
+
+[4] Fixed a regression bug in the NSIS script that caused the Windows installer
+build to fail when using the Visual Studio IDE.
+
+[5] Fixed a bug in jpeg_read_coefficients() whereby it would not initialize
+cinfo->image_width and cinfo->image_height if libjpeg v7 or v8 emulation was
+enabled.  This specifically caused the jpegoptim program to fail if it was
+linked against a version of libjpeg-turbo that was built with libjpeg v7 or v8
+emulation.
+
+[6] Eliminated excessive I/O overhead that occurred when reading BMP files in
+cjpeg.
+
+[7] Eliminated errors in the output of cjpeg on Windows that occurred when the
+application was invoked using I/O redirection (cjpeg <inputfile >output.jpg).
+
+
+1.1.0
+=====
+
+[1] The algorithm used by the SIMD quantization function cannot produce correct
+results when the JPEG quality is >= 98 and the fast integer forward DCT is
+used.  Thus, the non-SIMD quantization function is now used for those cases,
+and libjpeg-turbo should now produce identical output to libjpeg v6b in all
+cases.
+
+[2] Despite the above, the fast integer forward DCT still degrades somewhat for
+JPEG qualities greater than 95, so the TurboJPEG wrapper will now automatically
+use the slow integer forward DCT when generating JPEG images of quality 96 or
+greater.  This reduces compression performance by as much as 15% for these
+high-quality images but is necessary to ensure that the images are perceptually
+lossless.  It also ensures that the library can avoid the performance pitfall
+created by [1].
+
+[3] Ported jpgtest.cxx to pure C to avoid the need for a C++ compiler.
+
+[4] Fixed visual artifacts in grayscale JPEG compression caused by a typo in
+the RGB-to-luminance lookup tables.
+
+[5] The Windows distribution packages now include the libjpeg run-time programs
+(cjpeg, etc.)
+
+[6] All packages now include jpgtest.
+
+[7] The TurboJPEG dynamic library now uses versioned symbols.
+
+[8] Added two new TurboJPEG API functions, tjEncodeYUV() and
+tjDecompressToYUV(), to replace the somewhat hackish TJ_YUV flag.
+
+
+1.0.90 (1.1 beta1)
+==================
+
+[1] Added emulation of the libjpeg v7 and v8 APIs and ABIs.  See
+README-turbo.txt for more details.  This feature was sponsored by CamTrace SAS.
+
+[2] Created a new CMake-based build system for the Visual C++ and MinGW builds.
+
+[3] Grayscale bitmaps can now be compressed from/decompressed to using the
+TurboJPEG API.
+
+[4] jpgtest can now be used to test decompression performance with existing
+JPEG images.
+
+[5] If the default install prefix (/opt/libjpeg-turbo) is used, then
+'make install' now creates /opt/libjpeg-turbo/lib32 and
+/opt/libjpeg-turbo/lib64 sym links to duplicate the behavior of the binary
+packages.
+
+[6] All symbols in the libjpeg-turbo dynamic library are now versioned, even
+when the library is built with libjpeg v6b emulation.
+
+[7] Added arithmetic encoding and decoding support (can be disabled with
+configure or CMake options)
+
+[8] Added a TJ_YUV flag to the TurboJPEG API, which causes both the compressor
+and decompressor to output planar YUV images.
+
+[9] Added an extended version of tjDecompressHeader() to the TurboJPEG API,
+which allows the caller to determine the type of subsampling used in a JPEG
+image.
+
+[10] Added further protections against invalid Huffman codes.
+
+
+1.0.1
+=====
+
+[1] The Huffman decoder will now handle erroneous Huffman codes (for instance,
+from a corrupt JPEG image.)  Previously, these would cause libjpeg-turbo to
+crash under certain circumstances.
+
+[2] Fixed typo in SIMD dispatch routines that was causing 4:2:2 upsampling to
+be used instead of 4:2:0 when decompressing JPEG images using SSE2 code.
+
+[3] configure script will now automatically determine whether the
+INCOMPLETE_TYPES_BROKEN macro should be defined.
+
+
+1.0.0
+=====
+
+[1] 2983700: Further FreeBSD build tweaks (no longer necessary to specify
+--host when configuring on a 64-bit system)
+
+[2] Created symlinks in the Unix/Linux packages so that the TurboJPEG
+include file can always be found in /opt/libjpeg-turbo/include, the 32-bit
+static libraries can always be found in /opt/libjpeg-turbo/lib32, and the
+64-bit static libraries can always be found in /opt/libjpeg-turbo/lib64.
+
+[3] The Unix/Linux distribution packages now include the libjpeg run-time
+programs (cjpeg, etc.) and man pages.
+
+[4] Created a 32-bit supplementary package for amd64 Debian systems, which
+contains just the 32-bit libjpeg-turbo libraries.
+
+[5] Moved the libraries from */lib32 to */lib in the i386 Debian package.
+
+[6] Include distribution package for Cygwin
+
+[7] No longer necessary to specify --without-simd on non-x86 architectures, and
+unit tests now work on those architectures.
+
+
+0.0.93
+======
+
+[1] 2982659, Fixed x86-64 build on FreeBSD systems
+
+[2] 2988188: Added support for Windows 64-bit systems
+
+
+0.0.91
+======
+
+[1] Added documentation to .deb packages
+
+[2] 2968313: Fixed data corruption issues when decompressing large JPEG images
+and/or using buffered I/O with the libjpeg-turbo decompressor
+
+
+0.0.90
+======
+
+Initial release

Makefile.am

@@ -0,0 +1,706 @@
+lib_LTLIBRARIES = libjpeg.la
+libjpeg_la_LDFLAGS = -version-info ${LIBTOOL_CURRENT}:${SO_MINOR_VERSION}:${SO_AGE} -no-undefined
+include_HEADERS = jerror.h jmorecfg.h jpeglib.h
+
+if WITH_TURBOJPEG
+lib_LTLIBRARIES += libturbojpeg.la
+libturbojpeg_la_LDFLAGS = -version-info 1:0:1 -no-undefined
+include_HEADERS += turbojpeg.h
+endif
+
+nodist_include_HEADERS = jconfig.h
+
+
+HDRS = jchuff.h jdct.h jdhuff.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
+	jpegint.h jpeglib.h jversion.h jsimd.h jsimddct.h jpegcomp.h \
+	jpeg_nbits_table.h
+
+libjpeg_la_SOURCES = $(HDRS) jcapimin.c jcapistd.c jccoefct.c jccolor.c \
+	jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \
+	jcomapi.c jcparam.c jcphuff.c jcprepct.c jcsample.c jctrans.c \
+	jdapimin.c jdapistd.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \
+	jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \
+	jdmerge.c jdphuff.c jdpostct.c jdsample.c jdtrans.c jerror.c \
+	jfdctflt.c jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c \
+	jidctred.c jquant1.c jquant2.c jutils.c jmemmgr.c jmemnobs.c
+
+if WITH_ARITH
+libjpeg_la_SOURCES += jaricom.c
+endif
+
+if WITH_ARITH_ENC
+libjpeg_la_SOURCES += jcarith.c
+endif
+
+if WITH_ARITH_DEC
+libjpeg_la_SOURCES += jdarith.c
+endif
+
+
+SUBDIRS = java
+
+
+if WITH_TURBOJPEG
+
+libturbojpeg_la_SOURCES = $(libjpeg_la_SOURCES) turbojpeg.c turbojpeg.h \
+	transupp.c transupp.h jdatadst-tj.c jdatasrc-tj.c
+
+if WITH_JAVA
+
+libturbojpeg_la_SOURCES += turbojpeg-jni.c
+libturbojpeg_la_CFLAGS = ${JNI_CFLAGS}
+TJMAPFILE = turbojpeg-mapfile.jni
+
+else
+
+TJMAPFILE = turbojpeg-mapfile
+
+endif
+
+libturbojpeg_la_SOURCES += $(TJMAPFILE)
+
+if VERSION_SCRIPT
+libturbojpeg_la_LDFLAGS += $(VERSION_SCRIPT_FLAG)$(srcdir)/$(TJMAPFILE)
+endif
+
+endif
+
+
+if VERSION_SCRIPT
+libjpeg_la_LDFLAGS += $(VERSION_SCRIPT_FLAG)libjpeg.map
+endif
+
+
+if WITH_SIMD
+
+SUBDIRS += simd
+libjpeg_la_LIBADD = simd/libsimd.la
+libturbojpeg_la_LIBADD = simd/libsimd.la
+
+else
+
+libjpeg_la_SOURCES += jsimd_none.c
+
+endif
+
+
+bin_PROGRAMS = cjpeg djpeg jpegtran rdjpgcom wrjpgcom
+noinst_PROGRAMS = jcstest
+
+
+if WITH_TURBOJPEG
+
+bin_PROGRAMS += tjbench
+
+noinst_PROGRAMS += tjunittest
+
+tjbench_SOURCES = tjbench.c bmp.h bmp.c tjutil.h tjutil.c rdbmp.c rdppm.c \
+	wrbmp.c wrppm.c
+
+tjbench_LDADD = libturbojpeg.la libjpeg.la -lm
+
+tjbench_CFLAGS = -DBMP_SUPPORTED -DPPM_SUPPORTED
+
+tjunittest_SOURCES = tjunittest.c tjutil.h tjutil.c
+
+tjunittest_LDADD = libturbojpeg.la
+
+endif
+
+
+cjpeg_SOURCES = cdjpeg.h cderror.h cdjpeg.c cjpeg.c rdgif.c rdppm.c rdswitch.c
+if WITH_12BIT
+else
+cjpeg_SOURCES += rdbmp.c rdtarga.c
+endif
+
+cjpeg_LDADD = libjpeg.la
+
+cjpeg_CFLAGS = -DGIF_SUPPORTED -DPPM_SUPPORTED
+if WITH_12BIT
+else
+cjpeg_CFLAGS += -DBMP_SUPPORTED -DTARGA_SUPPORTED
+endif
+
+djpeg_SOURCES = cdjpeg.h cderror.h cdjpeg.c djpeg.c rdcolmap.c rdswitch.c \
+	wrgif.c wrppm.c
+if WITH_12BIT
+else
+djpeg_SOURCES += wrbmp.c wrtarga.c
+endif
+
+djpeg_LDADD = libjpeg.la
+
+djpeg_CFLAGS = -DGIF_SUPPORTED -DPPM_SUPPORTED
+if WITH_12BIT
+else
+djpeg_CFLAGS += -DBMP_SUPPORTED -DTARGA_SUPPORTED
+endif
+
+jpegtran_SOURCES = jpegtran.c rdswitch.c cdjpeg.c transupp.c transupp.h
+
+jpegtran_LDADD = libjpeg.la
+
+rdjpgcom_SOURCES = rdjpgcom.c
+
+rdjpgcom_LDADD = libjpeg.la
+
+wrjpgcom_SOURCES = wrjpgcom.c
+
+wrjpgcom_LDADD = libjpeg.la
+
+jcstest_SOURCES = jcstest.c
+
+jcstest_LDADD = libjpeg.la
+
+dist_man1_MANS = cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 wrjpgcom.1
+
+DOCS= coderules.txt jconfig.txt change.log rdrle.c wrrle.c BUILDING.txt \
+	ChangeLog.txt
+
+dist_doc_DATA = README README-turbo.txt libjpeg.txt structure.txt usage.txt \
+	wizard.txt
+
+exampledir = $(docdir)
+dist_example_DATA = example.c
+
+
+EXTRA_DIST = win release $(DOCS) testimages CMakeLists.txt \
+	sharedlib/CMakeLists.txt cmakescripts libjpeg.map.in doc doxygen.config \
+	doxygen-extra.css jccolext.c jdcolext.c jdcol565.c jdmrgext.c jdmrg565.c \
+	jstdhuff.c
+
+dist-hook:
+	rm -rf `find $(distdir) -name .svn`
+
+
+SUBDIRS += md5
+
+if WITH_12BIT
+
+TESTORIG = testorig12.jpg
+MD5_JPEG_RGB_ISLOW = 9620f424569594bb9242b48498ad801f
+MD5_PPM_RGB_ISLOW = f3301d2219783b8b3d942b7239fa50c0
+MD5_JPEG_422_IFAST_OPT = 7322e3bd2f127f7de4b40d4480ce60e4
+MD5_PPM_422_IFAST = 79807fa552899e66a04708f533e16950
+MD5_PPM_422M_IFAST = 07737bfe8a7c1c87aaa393a0098d16b0
+MD5_JPEG_420_IFAST_Q100_PROG = a1da220b5604081863a504297ed59e55
+MD5_PPM_420_Q100_IFAST = 1b3730122709f53d007255e8dfd3305e
+MD5_PPM_420M_Q100_IFAST = 980a1a3c5bf9510022869d30b7d26566
+MD5_JPEG_GRAY_ISLOW = 235c90707b16e2e069f37c888b2636d9
+MD5_PPM_GRAY_ISLOW = 7213c10af507ad467da5578ca5ee1fca
+MD5_PPM_GRAY_ISLOW_RGB = e96ee81c30a6ed422d466338bd3de65d
+MD5_JPEG_420S_IFAST_OPT = 7af8e60be4d9c227ec63ac9b6630855e
+MD5_JPEG_3x2_FLOAT_PROG_SSE = a8c17daf77b457725ec929e215b603f8
+MD5_PPM_3x2_FLOAT_SSE = 42876ab9e5c2f76a87d08db5fbd57956
+MD5_JPEG_3x2_FLOAT_PROG_32BIT = a8c17daf77b457725ec929e215b603f8
+MD5_PPM_3x2_FLOAT_32BIT = 42876ab9e5c2f76a87d08db5fbd57956
+MD5_PPM_3x2_FLOAT_64BIT = d6fbc71153b3d8ded484dbc17c7b9cf4
+MD5_JPEG_3x2_IFAST_PROG = 1396cc2b7185cfe943d408c9d305339e
+MD5_PPM_3x2_IFAST = 3975985ef6eeb0a2cdc58daa651ccc00
+MD5_PPM_420M_ISLOW_2_1 = 4ca6be2a6f326ff9eaab63e70a8259c0
+MD5_PPM_420M_ISLOW_15_8 = 12aa9f9534c1b3d7ba047322226365eb
+MD5_PPM_420M_ISLOW_13_8 = f7e22817c7b25e1393e4ec101e9d4e96
+MD5_PPM_420M_ISLOW_11_8 = 800a16f9f4dc9b293197bfe11be10a82
+MD5_PPM_420M_ISLOW_9_8 = 06b7a92a9bc69f4dc36ec40f1937d55c
+MD5_PPM_420M_ISLOW_7_8 = 3ec444a14a4ab4eab88ffc49c48eca43
+MD5_PPM_420M_ISLOW_3_4 = 3e726b7ea872445b19437d1c1d4f0d93
+MD5_PPM_420M_ISLOW_5_8 = a8a771abdc94301d20ffac119b2caccd
+MD5_PPM_420M_ISLOW_1_2 = b419124dd5568b085787234866102866
+MD5_PPM_420M_ISLOW_3_8 = 343d19015531b7bbe746124127244fa8
+MD5_PPM_420M_ISLOW_1_4 = 35fd59d866e44659edfa3c18db2a3edb
+MD5_PPM_420M_ISLOW_1_8 = ccaed48ac0aedefda5d4abe4013f4ad7
+MD5_JPEG_CROP = cdb35ff4b4519392690ea040c56ea99c
+
+else
+
+TESTORIG = testorig.jpg
+MD5_JPEG_RGB_ISLOW = 768e970dd57b340ff1b83c9d3d47c77b
+MD5_PPM_RGB_ISLOW = 00a257f5393fef8821f2b88ac7421291
+MD5_BMP_RGB_ISLOW_565 = f07d2e75073e4bb10f6c6f4d36e2e3be
+MD5_BMP_RGB_ISLOW_565D = 4cfa0928ef3e6bb626d7728c924cfda4
+MD5_JPEG_422_IFAST_OPT = 2540287b79d913f91665e660303ab2c8
+MD5_PPM_422_IFAST = 35bd6b3f833bad23de82acea847129fa
+MD5_PPM_422M_IFAST = 8dbc65323d62cca7c91ba02dd1cfa81d
+MD5_BMP_422M_IFAST_565 = 3294bd4d9a1f2b3d08ea6020d0db7065
+MD5_BMP_422M_IFAST_565D = da98c9c7b6039511be4a79a878a9abc1
+MD5_JPEG_420_IFAST_Q100_PROG = 990cbe0329c882420a2094da7e5adade
+MD5_PPM_420_Q100_IFAST = 5a732542015c278ff43635e473a8a294
+MD5_PPM_420M_Q100_IFAST = ff692ee9323a3b424894862557c092f1
+MD5_JPEG_GRAY_ISLOW = 72b51f894b8f4a10b3ee3066770aa38d
+MD5_PPM_GRAY_ISLOW = 8d3596c56eace32f205deccc229aa5ed
+MD5_PPM_GRAY_ISLOW_RGB = 116424ac07b79e5e801f00508eab48ec
+MD5_BMP_GRAY_ISLOW_565 = 12f78118e56a2f48b966f792fedf23cc
+MD5_BMP_GRAY_ISLOW_565D = bdbbd616441a24354c98553df5dc82db
+MD5_JPEG_420S_IFAST_OPT = 388708217ac46273ca33086b22827ed8
+# See README-turbo.txt for more details on why this next bit is necessary.
+MD5_JPEG_3x2_FLOAT_PROG_SSE = 343e3f8caf8af5986ebaf0bdc13b5c71
+MD5_PPM_3x2_FLOAT_SSE = 1a75f36e5904d6fc3a85a43da9ad89bb
+MD5_JPEG_3x2_FLOAT_PROG_32BIT = 9bca803d2042bd1eb03819e2bf92b3e5
+MD5_PPM_3x2_FLOAT_32BIT = f6bfab038438ed8f5522fbd33595dcdc
+MD5_PPM_3x2_FLOAT_64BIT = 0e917a34193ef976b679a6b069b1be26
+MD5_JPEG_3x2_IFAST_PROG = 1ee5d2c1a77f2da495f993c8c7cceca5
+MD5_PPM_3x2_IFAST = fd283664b3b49127984af0a7f118fccd
+MD5_JPEG_420_ISLOW_ARI = e986fb0a637a8d833d96e8a6d6d84ea1
+MD5_JPEG_444_ISLOW_PROGARI = 0a8f1c8f66e113c3cf635df0a475a617
+MD5_PPM_420M_IFAST_ARI = 72b59a99bcf1de24c5b27d151bde2437
+MD5_JPEG_420_ISLOW = 9a68f56bc76e466aa7e52f415d0f4a5f
+MD5_PPM_420M_ISLOW_2_1 = 9f9de8c0612f8d06869b960b05abf9c9
+MD5_PPM_420M_ISLOW_15_8 = b6875bc070720b899566cc06459b63b7
+MD5_PPM_420M_ISLOW_13_8 = bc3452573c8152f6ae552939ee19f82f
+MD5_PPM_420M_ISLOW_11_8 = d8cc73c0aaacd4556569b59437ba00a5
+MD5_PPM_420M_ISLOW_9_8 = d25e61bc7eac0002f5b393aa223747b6
+MD5_PPM_420M_ISLOW_7_8 = ddb564b7c74a09494016d6cd7502a946
+MD5_PPM_420M_ISLOW_3_4 = 8ed8e68808c3fbc4ea764fc9d2968646
+MD5_PPM_420M_ISLOW_5_8 = a3363274999da2366a024efae6d16c9b
+MD5_PPM_420M_ISLOW_1_2 = e692a315cea26b988c8e8b29a5dbcd81
+MD5_PPM_420M_ISLOW_3_8 = 79eca9175652ced755155c90e785a996
+MD5_PPM_420M_ISLOW_1_4 = 79cd778f8bf1a117690052cacdd54eca
+MD5_PPM_420M_ISLOW_1_8 = 391b3d4aca640c8567d6f8745eb2142f
+MD5_BMP_420_ISLOW_256 = 4980185e3776e89bd931736e1cddeee6
+MD5_BMP_420_ISLOW_565 = bf9d13e16c4923b92e1faa604d7922cb
+MD5_BMP_420_ISLOW_565D = 6bde71526acc44bcff76f696df8638d2
+MD5_BMP_420M_ISLOW_565 = 8dc0185245353cfa32ad97027342216f
+MD5_BMP_420M_ISLOW_565D =d1be3a3339166255e76fa50a0d70d73e
+MD5_JPEG_CROP = b4197f377e621c4e9b1d20471432610d
+
+endif
+
+.PHONY: test
+test: tjquicktest tjbittest bittest
+
+tjquicktest: testclean all
+
+if WITH_TURBOJPEG
+if WITH_JAVA
+	$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest
+	$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -bi
+	$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv
+	$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -noyuvpad
+	$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -bi
+	$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -bi -noyuvpad
+endif
+	./tjunittest
+	./tjunittest -alloc
+	./tjunittest -yuv
+	./tjunittest -yuv -alloc
+	./tjunittest -yuv -noyuvpad
+endif
+	echo GREAT SUCCESS!
+
+tjbittest: testclean all
+
+if WITH_TURBOJPEG
+
+MD5_PPM_GRAY_TILE = 89d3ca21213d9d864b50b4e4e7de4ca6
+MD5_PPM_420_8x8_TILE = 847fceab15c5b7b911cb986cf0f71de3
+MD5_PPM_420_16x16_TILE = ca45552a93687e078f7137cc4126a7b0
+MD5_PPM_420_32x32_TILE = d8676f1d6b68df358353bba9844f4a00
+MD5_PPM_420_64x64_TILE = 4e4c1a3d7ea4bace4f868bcbe83b7050
+MD5_PPM_420_128x128_TILE = f24c3429c52265832beab9df72a0ceae
+MD5_PPM_420M_8x8_TILE = bc25320e1f4c31ce2e610e43e9fd173c
+MD5_PPM_420M_TILE = 75ffdf14602258c5c189522af57fa605
+MD5_PPM_422_8x8_TILE = d83dacd9fc73b0a6f10c09acad64eb1e
+MD5_PPM_422_16x16_TILE = 35077fb610d72dd743b1eb0cbcfe10fb
+MD5_PPM_422_32x32_TILE = e6902ed8a449ecc0f0d6f2bf945f65f7
+MD5_PPM_422_64x64_TILE = 2b4502a8f316cedbde1da7bce3d2231e
+MD5_PPM_422_128x128_TILE = f0b5617d578f5e13c8eee215d64d4877
+MD5_PPM_422M_8x8_TILE = 828941d7f41cd6283abd6beffb7fd51d
+MD5_PPM_422M_TILE = e877ae1324c4a280b95376f7f018172f
+MD5_PPM_444_TILE = 7964e41e67cfb8d0a587c0aa4798f9c3
+
+# Test compressing from/decompressing to an arbitrary subregion of a larger
+# image buffer
+	cp $(srcdir)/testimages/testorig.ppm testout_tile.ppm
+	./tjbench testout_tile.ppm 95 -rgb -quiet -tile -benchtime 0.01 >/dev/null 2>&1
+	for i in 8 16 32 64 128; do \
+		md5/md5cmp $(MD5_PPM_GRAY_TILE) testout_tile_GRAY_Q95_$$i\x$$i.ppm; \
+	done
+	md5/md5cmp $(MD5_PPM_420_8x8_TILE) testout_tile_420_Q95_8x8.ppm
+	md5/md5cmp $(MD5_PPM_420_16x16_TILE) testout_tile_420_Q95_16x16.ppm
+	md5/md5cmp $(MD5_PPM_420_32x32_TILE) testout_tile_420_Q95_32x32.ppm
+	md5/md5cmp $(MD5_PPM_420_64x64_TILE) testout_tile_420_Q95_64x64.ppm
+	md5/md5cmp $(MD5_PPM_420_128x128_TILE) testout_tile_420_Q95_128x128.ppm
+	md5/md5cmp $(MD5_PPM_422_8x8_TILE) testout_tile_422_Q95_8x8.ppm
+	md5/md5cmp $(MD5_PPM_422_16x16_TILE) testout_tile_422_Q95_16x16.ppm
+	md5/md5cmp $(MD5_PPM_422_32x32_TILE) testout_tile_422_Q95_32x32.ppm
+	md5/md5cmp $(MD5_PPM_422_64x64_TILE) testout_tile_422_Q95_64x64.ppm
+	md5/md5cmp $(MD5_PPM_422_128x128_TILE) testout_tile_422_Q95_128x128.ppm
+	for i in 8 16 32 64 128; do \
+		md5/md5cmp $(MD5_PPM_444_TILE) testout_tile_444_Q95_$$i\x$$i.ppm; \
+	done
+	rm testout_tile_GRAY_* testout_tile_420_* testout_tile_422_* testout_tile_444_*
+
+	./tjbench testout_tile.ppm 95 -rgb -fastupsample -quiet -tile -benchtime 0.01 >/dev/null 2>&1
+	md5/md5cmp $(MD5_PPM_420M_8x8_TILE) testout_tile_420_Q95_8x8.ppm
+	for i in 16 32 64 128; do \
+		md5/md5cmp $(MD5_PPM_420M_TILE) testout_tile_420_Q95_$$i\x$$i.ppm; \
+	done
+	md5/md5cmp $(MD5_PPM_422M_8x8_TILE) testout_tile_422_Q95_8x8.ppm
+	for i in 16 32 64 128; do \
+		md5/md5cmp $(MD5_PPM_422M_TILE) testout_tile_422_Q95_$$i\x$$i.ppm; \
+	done
+	rm testout_tile_GRAY_* testout_tile_420_* testout_tile_422_* testout_tile_444_* testout_tile.ppm
+	echo GREAT SUCCESS!
+
+endif
+
+bittest: testclean all
+
+# These tests are carefully crafted to provide full coverage of as many of the
+# underlying algorithms as possible (including all of the SIMD-accelerated
+# ones.)
+
+# CC: null  SAMP: fullsize  FDCT: islow  ENT: huff
+	./cjpeg -rgb -dct int -outfile testout_rgb_islow.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_RGB_ISLOW) testout_rgb_islow.jpg
+# CC: null  SAMP: fullsize  IDCT: islow  ENT: huff
+	./djpeg -dct int -ppm -outfile testout_rgb_islow.ppm testout_rgb_islow.jpg
+	md5/md5cmp $(MD5_PPM_RGB_ISLOW) testout_rgb_islow.ppm
+	rm testout_rgb_islow.ppm
+if WITH_12BIT
+	rm testout_rgb_islow.jpg
+else
+# CC: RGB->RGB565  SAMP: fullsize  IDCT: islow  ENT: huff
+	./djpeg -dct int -rgb565 -dither none -bmp -outfile testout_rgb_islow_565.bmp testout_rgb_islow.jpg
+	md5/md5cmp $(MD5_BMP_RGB_ISLOW_565) testout_rgb_islow_565.bmp
+	rm testout_rgb_islow_565.bmp
+# CC: RGB->RGB565 (dithered)  SAMP: fullsize  IDCT: islow  ENT: huff
+	./djpeg -dct int -rgb565 -bmp -outfile testout_rgb_islow_565D.bmp testout_rgb_islow.jpg
+	md5/md5cmp $(MD5_BMP_RGB_ISLOW_565D) testout_rgb_islow_565D.bmp
+	rm testout_rgb_islow_565D.bmp testout_rgb_islow.jpg
+endif
+
+# CC: RGB->YCC  SAMP: fullsize/h2v1  FDCT: ifast  ENT: 2-pass huff
+	./cjpeg -sample 2x1 -dct fast -opt -outfile testout_422_ifast_opt.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_422_IFAST_OPT) testout_422_ifast_opt.jpg
+# CC: YCC->RGB  SAMP: fullsize/h2v1 fancy  IDCT: ifast  ENT: huff
+	./djpeg -dct fast -outfile testout_422_ifast.ppm testout_422_ifast_opt.jpg
+	md5/md5cmp $(MD5_PPM_422_IFAST) testout_422_ifast.ppm
+	rm testout_422_ifast.ppm
+# CC: YCC->RGB  SAMP: h2v1 merged  IDCT: ifast  ENT: huff
+	./djpeg -dct fast -nosmooth -outfile testout_422m_ifast.ppm testout_422_ifast_opt.jpg
+	md5/md5cmp $(MD5_PPM_422M_IFAST) testout_422m_ifast.ppm
+	rm testout_422m_ifast.ppm
+if WITH_12BIT
+	rm testout_422_ifast_opt.jpg
+else
+# CC: YCC->RGB565  SAMP: h2v1 merged  IDCT: ifast  ENT: huff
+	./djpeg -dct int -nosmooth -rgb565 -dither none -bmp -outfile testout_422m_ifast_565.bmp testout_422_ifast_opt.jpg
+	md5/md5cmp $(MD5_BMP_422M_IFAST_565) testout_422m_ifast_565.bmp
+	rm testout_422m_ifast_565.bmp
+# CC: YCC->RGB565 (dithered)  SAMP: h2v1 merged  IDCT: ifast  ENT: huff
+	./djpeg -dct int -nosmooth -rgb565 -bmp -outfile testout_422m_ifast_565D.bmp testout_422_ifast_opt.jpg
+	md5/md5cmp $(MD5_BMP_422M_IFAST_565D) testout_422m_ifast_565D.bmp
+	rm testout_422m_ifast_565D.bmp testout_422_ifast_opt.jpg
+endif
+
+# CC: RGB->YCC  SAMP: fullsize/h2v2  FDCT: ifast  ENT: prog huff
+	./cjpeg -sample 2x2 -quality 100 -dct fast -prog -outfile testout_420_q100_ifast_prog.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_420_IFAST_Q100_PROG) testout_420_q100_ifast_prog.jpg
+# CC: YCC->RGB  SAMP: fullsize/h2v2 fancy  IDCT: ifast  ENT: prog huff
+	./djpeg -dct fast -outfile testout_420_q100_ifast.ppm testout_420_q100_ifast_prog.jpg
+	md5/md5cmp $(MD5_PPM_420_Q100_IFAST) testout_420_q100_ifast.ppm
+	rm testout_420_q100_ifast.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: ifast  ENT: prog huff
+	./djpeg -dct fast -nosmooth -outfile testout_420m_q100_ifast.ppm testout_420_q100_ifast_prog.jpg
+	md5/md5cmp $(MD5_PPM_420M_Q100_IFAST) testout_420m_q100_ifast.ppm
+	rm testout_420m_q100_ifast.ppm testout_420_q100_ifast_prog.jpg
+
+# CC: RGB->Gray  SAMP: fullsize  FDCT: islow  ENT: huff
+	./cjpeg -gray -dct int -outfile testout_gray_islow.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_GRAY_ISLOW) testout_gray_islow.jpg
+# CC: Gray->Gray  SAMP: fullsize  IDCT: islow  ENT: huff
+	./djpeg -dct int -outfile testout_gray_islow.ppm testout_gray_islow.jpg
+	md5/md5cmp $(MD5_PPM_GRAY_ISLOW) testout_gray_islow.ppm
+	rm testout_gray_islow.ppm
+# CC: Gray->RGB  SAMP: fullsize  IDCT: islow  ENT: huff
+	./djpeg -dct int -rgb -outfile testout_gray_islow_rgb.ppm testout_gray_islow.jpg
+	md5/md5cmp $(MD5_PPM_GRAY_ISLOW_RGB) testout_gray_islow_rgb.ppm
+	rm testout_gray_islow_rgb.ppm
+if WITH_12BIT
+	rm testout_gray_islow.jpg
+else
+# CC: Gray->RGB565  SAMP: fullsize  IDCT: islow  ENT: huff
+	./djpeg -dct int -rgb565 -dither none -bmp -outfile testout_gray_islow_565.bmp testout_gray_islow.jpg
+	md5/md5cmp $(MD5_BMP_GRAY_ISLOW_565) testout_gray_islow_565.bmp
+	rm testout_gray_islow_565.bmp
+# CC: Gray->RGB565 (dithered)  SAMP: fullsize  IDCT: islow  ENT: huff
+	./djpeg -dct int -rgb565 -bmp -outfile testout_gray_islow_565D.bmp testout_gray_islow.jpg
+	md5/md5cmp $(MD5_BMP_GRAY_ISLOW_565D) testout_gray_islow_565D.bmp
+	rm testout_gray_islow_565D.bmp testout_gray_islow.jpg
+endif
+
+# CC: RGB->YCC  SAMP: fullsize smooth/h2v2 smooth  FDCT: islow
+# ENT: 2-pass huff
+	./cjpeg -sample 2x2 -smooth 1 -dct int -opt -outfile testout_420s_ifast_opt.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_420S_IFAST_OPT) testout_420s_ifast_opt.jpg
+	rm testout_420s_ifast_opt.jpg
+
+# The output of the floating point tests is not validated by default, because
+# the output differs depending on the type of floating point math used, and
+# this is only deterministic if the DCT/IDCT are implemented using SIMD
+# instructions on a particular platform.  Pass one of the following on the make
+# command line to validate the floating point tests against one of the expected # results:
+#
+# FLOATTEST=sse  validate against the expected results from the libjpeg-turbo
+#                SSE SIMD extensions
+# FLOATTEST=32bit  validate against the expected results from the C code
+#                  when running on a 32-bit FPU (or when SSE is being used for
+#                  floating point math, which is generally the default with
+#                  x86-64 compilers)
+# FLOATTEST=64bit  validate against the exepected results from the C code
+#                  when running on a 64-bit FPU
+
+# CC: RGB->YCC  SAMP: fullsize/int  FDCT: float  ENT: prog huff
+	./cjpeg -sample 3x2 -dct float -prog -outfile testout_3x2_float_prog.jpg $(srcdir)/testimages/testorig.ppm
+	if [ "${FLOATTEST}" = "sse" ]; then \
+		md5/md5cmp $(MD5_JPEG_3x2_FLOAT_PROG_SSE) testout_3x2_float_prog.jpg; \
+	elif [ "${FLOATTEST}" = "32bit" -o "${FLOATTEST}" = "64bit" ]; then \
+		md5/md5cmp $(MD5_JPEG_3x2_FLOAT_PROG_32BIT) testout_3x2_float_prog.jpg; \
+	fi
+# CC: YCC->RGB  SAMP: fullsize/int  IDCT: float  ENT: prog huff
+	./djpeg -dct float -outfile testout_3x2_float.ppm testout_3x2_float_prog.jpg
+	if [ "${FLOATTEST}" = "sse" ]; then \
+		md5/md5cmp $(MD5_PPM_3x2_FLOAT_SSE) testout_3x2_float.ppm; \
+	elif [ "${FLOATTEST}" = "32bit" ]; then \
+		md5/md5cmp $(MD5_PPM_3x2_FLOAT_32BIT) testout_3x2_float.ppm; \
+	elif [ "${FLOATTEST}" = "64bit" ]; then \
+		md5/md5cmp $(MD5_PPM_3x2_FLOAT_64BIT) testout_3x2_float.ppm; \
+	fi
+	rm testout_3x2_float.ppm testout_3x2_float_prog.jpg
+
+# CC: RGB->YCC  SAMP: fullsize/int  FDCT: ifast  ENT: prog huff
+	./cjpeg -sample 3x2 -dct fast -prog -outfile testout_3x2_ifast_prog.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_3x2_IFAST_PROG) testout_3x2_ifast_prog.jpg
+# CC: YCC->RGB  SAMP: fullsize/int  IDCT: ifast  ENT: prog huff
+	./djpeg -dct fast -outfile testout_3x2_ifast.ppm testout_3x2_ifast_prog.jpg
+	md5/md5cmp $(MD5_PPM_3x2_IFAST) testout_3x2_ifast.ppm
+	rm testout_3x2_ifast.ppm testout_3x2_ifast_prog.jpg
+
+if WITH_ARITH_ENC
+# CC: YCC->RGB  SAMP: fullsize/h2v2  FDCT: islow  ENT: arith
+	./cjpeg -dct int -arithmetic -outfile testout_420_islow_ari.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_420_ISLOW_ARI) testout_420_islow_ari.jpg
+	rm testout_420_islow_ari.jpg
+	./jpegtran -arithmetic -outfile testout_420_islow_ari.jpg $(srcdir)/testimages/testimgint.jpg
+	md5/md5cmp $(MD5_JPEG_420_ISLOW_ARI) testout_420_islow_ari.jpg
+	rm testout_420_islow_ari.jpg
+# CC: YCC->RGB  SAMP: fullsize  FDCT: islow  ENT: prog arith
+	./cjpeg -sample 1x1 -dct int -progressive -arithmetic -outfile testout_444_islow_progari.jpg $(srcdir)/testimages/testorig.ppm
+	md5/md5cmp $(MD5_JPEG_444_ISLOW_PROGARI) testout_444_islow_progari.jpg
+	rm testout_444_islow_progari.jpg
+endif
+if WITH_ARITH_DEC
+# CC: RGB->YCC  SAMP: h2v2 merged  IDCT: ifast  ENT: arith
+	./djpeg -fast -ppm -outfile testout_420m_ifast_ari.ppm $(srcdir)/testimages/testimgari.jpg
+	md5/md5cmp $(MD5_PPM_420M_IFAST_ARI) testout_420m_ifast_ari.ppm
+	rm testout_420m_ifast_ari.ppm
+	./jpegtran -outfile testout_420_islow.jpg $(srcdir)/testimages/testimgari.jpg
+	md5/md5cmp $(MD5_JPEG_420_ISLOW) testout_420_islow.jpg
+	rm testout_420_islow.jpg
+endif
+
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 16x16 islow  ENT: huff
+	./djpeg -dct int -scale 2/1 -nosmooth -ppm -outfile testout_420m_islow_2_1.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_2_1) testout_420m_islow_2_1.ppm
+	rm testout_420m_islow_2_1.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 15x15 islow  ENT: huff
+	./djpeg -dct int -scale 15/8 -nosmooth -ppm -outfile testout_420m_islow_15_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_15_8) testout_420m_islow_15_8.ppm
+	rm testout_420m_islow_15_8.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 13x13 islow  ENT: huff
+	./djpeg -dct int -scale 13/8 -nosmooth -ppm -outfile testout_420m_islow_13_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_13_8) testout_420m_islow_13_8.ppm
+	rm testout_420m_islow_13_8.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 11x11 islow  ENT: huff
+	./djpeg -dct int -scale 11/8 -nosmooth -ppm -outfile testout_420m_islow_11_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_11_8) testout_420m_islow_11_8.ppm
+	rm testout_420m_islow_11_8.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 9x9 islow  ENT: huff
+	./djpeg -dct int -scale 9/8 -nosmooth -ppm -outfile testout_420m_islow_9_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_9_8) testout_420m_islow_9_8.ppm
+	rm testout_420m_islow_9_8.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 7x7 islow/14x14 islow  ENT: huff
+	./djpeg -dct int -scale 7/8 -nosmooth -ppm -outfile testout_420m_islow_7_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_7_8) testout_420m_islow_7_8.ppm
+	rm testout_420m_islow_7_8.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 6x6 islow/12x12 islow  ENT: huff
+	./djpeg -dct int -scale 3/4 -nosmooth -ppm -outfile testout_420m_islow_3_4.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_3_4) testout_420m_islow_3_4.ppm
+	rm testout_420m_islow_3_4.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 5x5 islow/10x10 islow  ENT: huff
+	./djpeg -dct int -scale 5/8 -nosmooth -ppm -outfile testout_420m_islow_5_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_5_8) testout_420m_islow_5_8.ppm
+	rm testout_420m_islow_5_8.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 4x4 islow/8x8 islow  ENT: huff
+	./djpeg -dct int -scale 1/2 -nosmooth -ppm -outfile testout_420m_islow_1_2.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_1_2) testout_420m_islow_1_2.ppm
+	rm testout_420m_islow_1_2.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 3x3 islow/6x6 islow  ENT: huff
+	./djpeg -dct int -scale 3/8 -nosmooth -ppm -outfile testout_420m_islow_3_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_3_8) testout_420m_islow_3_8.ppm
+	rm testout_420m_islow_3_8.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 2x2 islow/4x4 islow  ENT: huff
+	./djpeg -dct int -scale 1/4 -nosmooth -ppm -outfile testout_420m_islow_1_4.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_1_4) testout_420m_islow_1_4.ppm
+	rm testout_420m_islow_1_4.ppm
+# CC: YCC->RGB  SAMP: h2v2 merged  IDCT: 1x1 islow/2x2 islow  ENT: huff
+	./djpeg -dct int -scale 1/8 -nosmooth -ppm -outfile testout_420m_islow_1_8.ppm $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_PPM_420M_ISLOW_1_8) testout_420m_islow_1_8.ppm
+	rm testout_420m_islow_1_8.ppm
+if WITH_12BIT
+else
+# CC: YCC->RGB (dithered)  SAMP: h2v2 fancy  IDCT: islow  ENT: huff
+	./djpeg -dct int -colors 256 -bmp -outfile testout_420_islow_256.bmp $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_BMP_420_ISLOW_256) testout_420_islow_256.bmp
+	rm testout_420_islow_256.bmp
+# CC: YCC->RGB565  SAMP: h2v2 fancy  IDCT: islow  ENT: huff
+	./djpeg -dct int -rgb565 -dither none -bmp -outfile testout_420_islow_565.bmp $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_BMP_420_ISLOW_565) testout_420_islow_565.bmp
+	rm testout_420_islow_565.bmp
+# CC: YCC->RGB565 (dithered)  SAMP: h2v2 fancy  IDCT: islow  ENT: huff
+	./djpeg -dct int -rgb565 -bmp -outfile testout_420_islow_565D.bmp $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_BMP_420_ISLOW_565D) testout_420_islow_565D.bmp
+	rm testout_420_islow_565D.bmp
+# CC: YCC->RGB565  SAMP: h2v2 merged  IDCT: islow  ENT: huff
+	./djpeg -dct int -nosmooth -rgb565 -dither none -bmp -outfile testout_420m_islow_565.bmp $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_BMP_420M_ISLOW_565) testout_420m_islow_565.bmp
+	rm testout_420m_islow_565.bmp
+# CC: YCC->RGB565 (dithered)  SAMP: h2v2 merged  IDCT: islow  ENT: huff
+	./djpeg -dct int -nosmooth -rgb565 -bmp -outfile testout_420m_islow_565D.bmp $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_BMP_420M_ISLOW_565D) testout_420m_islow_565D.bmp
+	rm testout_420m_islow_565D.bmp
+endif
+
+	./jpegtran -crop 120x90+20+50 -transpose -perfect -outfile testout_crop.jpg $(srcdir)/testimages/$(TESTORIG)
+	md5/md5cmp $(MD5_JPEG_CROP) testout_crop.jpg
+	rm testout_crop.jpg
+	echo GREAT SUCCESS!
+
+
+testclean:
+	rm -f testout*
+	rm -f *_GRAY_*.bmp
+	rm -f *_GRAY_*.png
+	rm -f *_GRAY_*.ppm
+	rm -f *_GRAY_*.jpg
+	rm -f *_GRAY.yuv
+	rm -f *_420_*.bmp
+	rm -f *_420_*.png
+	rm -f *_420_*.ppm
+	rm -f *_420_*.jpg
+	rm -f *_420.yuv
+	rm -f *_422_*.bmp
+	rm -f *_422_*.png
+	rm -f *_422_*.ppm
+	rm -f *_422_*.jpg
+	rm -f *_422.yuv
+	rm -f *_444_*.bmp
+	rm -f *_444_*.png
+	rm -f *_444_*.ppm
+	rm -f *_444_*.jpg
+	rm -f *_444.yuv
+	rm -f *_440_*.bmp
+	rm -f *_440_*.png
+	rm -f *_440_*.ppm
+	rm -f *_440_*.jpg
+	rm -f *_440.yuv
+	rm -f *_411_*.bmp
+	rm -f *_411_*.png
+	rm -f *_411_*.ppm
+	rm -f *_411_*.jpg
+	rm -f *_411.yuv
+
+
+tjtest:
+	sh ./tjbenchtest
+	sh ./tjbenchtest -alloc
+	sh ./tjbenchtest -yuv
+	sh ./tjbenchtest -yuv -alloc
+if WITH_JAVA
+	sh ./tjbenchtest.java
+	sh ./tjbenchtest.java -yuv
+endif
+
+
+pkgscripts/libjpeg-turbo.spec: pkgscripts/libjpeg-turbo.spec.tmpl
+	cat pkgscripts/libjpeg-turbo.spec.tmpl | sed s@%{__prefix}@$(prefix)@g | \
+		sed s@%{__bindir}@$(bindir)@g | sed s@%{__datadir}@$(datadir)@g | \
+		sed s@%{__docdir}@$(docdir)@g | sed s@%{__includedir}@$(includedir)@g | \
+		sed s@%{__libdir}@$(libdir)@g | sed s@%{__mandir}@$(mandir)@g \
+		> pkgscripts/libjpeg-turbo.spec
+
+rpm: all pkgscripts/libjpeg-turbo.spec
+	TMPDIR=`mktemp -d /tmp/${PACKAGE_NAME}-build.XXXXXX`; \
+	mkdir -p $$TMPDIR/RPMS; \
+	ln -fs `pwd` $$TMPDIR/BUILD; \
+	rm -f ${PKGNAME}-${VERSION}.${RPMARCH}.rpm; \
+	rpmbuild -bb --define "_blddir $$TMPDIR/buildroot"  \
+		--define "_topdir $$TMPDIR" \
+		--target ${RPMARCH} pkgscripts/libjpeg-turbo.spec; \
+	cp $$TMPDIR/RPMS/${RPMARCH}/${PKGNAME}-${VERSION}-${BUILD}.${RPMARCH}.rpm \
+		${PKGNAME}-${VERSION}.${RPMARCH}.rpm; \
+	rm -rf $$TMPDIR
+
+srpm: dist-gzip pkgscripts/libjpeg-turbo.spec
+	TMPDIR=`mktemp -d /tmp/${PACKAGE_NAME}-build.XXXXXX`; \
+	mkdir -p $$TMPDIR/RPMS; \
+	mkdir -p $$TMPDIR/SRPMS; \
+	mkdir -p $$TMPDIR/BUILD; \
+	mkdir -p $$TMPDIR/SOURCES; \
+	mkdir -p $$TMPDIR/SPECS; \
+	rm -f ${PKGNAME}-${VERSION}.src.rpm; \
+	cp ${PACKAGE_NAME}-${VERSION}.tar.gz $$TMPDIR/SOURCES; \
+	cat pkgscripts/libjpeg-turbo.spec | sed s/%{_blddir}/%{_tmppath}/g \
+		| sed s/#--\>//g \
+		> $$TMPDIR/SPECS/libjpeg-turbo.spec; \
+	rpmbuild -bs --define "_topdir $$TMPDIR" $$TMPDIR/SPECS/libjpeg-turbo.spec; \
+	cp $$TMPDIR/SRPMS/${PKGNAME}-${VERSION}-${BUILD}.src.rpm \
+		${PKGNAME}-${VERSION}.src.rpm; \
+	rm -rf $$TMPDIR
+
+pkgscripts/makedpkg: pkgscripts/makedpkg.tmpl
+	cat pkgscripts/makedpkg.tmpl | sed s@%{__prefix}@$(prefix)@g | \
+		sed s@%{__docdir}@$(docdir)@g | sed s@%{__libdir}@$(libdir)@g \
+		> pkgscripts/makedpkg
+
+deb: all pkgscripts/makedpkg
+	sh pkgscripts/makedpkg
+
+pkgscripts/uninstall: pkgscripts/uninstall.tmpl
+	cat pkgscripts/uninstall.tmpl | sed s@%{__prefix}@$(prefix)@g | \
+		sed s@%{__bindir}@$(bindir)@g | sed s@%{__datadir}@$(datadir)@g | \
+		sed s@%{__includedir}@$(includedir)@g | sed s@%{__libdir}@$(libdir)@g | \
+		sed s@%{__mandir}@$(mandir)@g > pkgscripts/uninstall
+
+pkgscripts/makemacpkg: pkgscripts/makemacpkg.tmpl
+	cat pkgscripts/makemacpkg.tmpl | sed s@%{__prefix}@$(prefix)@g | \
+		sed s@%{__bindir}@$(bindir)@g | sed s@%{__docdir}@$(docdir)@g | \
+		sed s@%{__libdir}@$(libdir)@g > pkgscripts/makemacpkg
+
+if X86_64
+
+udmg: all pkgscripts/makemacpkg pkgscripts/uninstall
+	sh pkgscripts/makemacpkg -build32 ${BUILDDIR32}
+
+iosdmg: all pkgscripts/makemacpkg pkgscripts/uninstall
+	sh pkgscripts/makemacpkg -build32 ${BUILDDIR32} -buildarmv6 ${BUILDDIRARMV6} -buildarmv7 ${BUILDDIRARMV7} -buildarmv7s ${BUILDDIRARMV7S} -buildarmv8 ${BUILDDIRARMV8} -lipo "${LIPO}"
+
+else
+
+iosdmg: all pkgscripts/makemacpkg pkgscripts/uninstall
+	sh pkgscripts/makemacpkg -buildarmv6 ${BUILDDIRARMV6} -buildarmv7 ${BUILDDIRARMV7} -buildarmv7s ${BUILDDIRARMV7S} -buildarmv8 ${BUILDDIRARMV8} -lipo "${LIPO}"
+
+endif
+
+dmg: all pkgscripts/makemacpkg pkgscripts/uninstall
+	sh pkgscripts/makemacpkg
+
+pkgscripts/makecygwinpkg: pkgscripts/makecygwinpkg.tmpl
+	cat pkgscripts/makecygwinpkg.tmpl | sed s@%{__prefix}@$(prefix)@g | \
+		sed s@%{__docdir}@$(docdir)@g | sed s@%{__libdir}@$(libdir)@g \
+		> pkgscripts/makecygwinpkg
+
+cygwinpkg: all pkgscripts/makecygwinpkg
+	sh pkgscripts/makecygwinpkg

README

@@ -1,23 +1,24 @@
+libjpeg-turbo note:  This file has been modified by The libjpeg-turbo Project
+to include only information relevant to libjpeg-turbo, to wordsmith certain
+sections, and to remove impolitic language that existed in the libjpeg v8
+README.  It is included only for reference.  Please see README-turbo.txt for
+information specific to libjpeg-turbo.
+
+
 The Independent JPEG Group's JPEG software
 ==========================================
 
-README for release 5b of 15-Mar-95
+This distribution contains a 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.
 
-This distribution contains the fifth public release of the Independent JPEG
+This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone,
-Group's free JPEG software.  You are welcome to redistribute this software and
+Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson,
-to use it for any purpose, subject to the conditions under LEGAL ISSUES, below.
+Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers,
+and other members of the Independent JPEG Group.
 
-Serious users of this software (particularly those incorporating it into
+IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee
-larger programs) should contact IJG at jpeg-info@uunet.uu.net to be added to
+(also known as JPEG, together with ITU-T SG16).
-our electronic mailing list.  Mailing list members are notified of updates
-and have a chance to participate in technical discussions, etc.
-
-This software is the work of Tom Lane, Philip Gladstone, Luis Ortiz, Jim
-Boucher, Lee Crocker, George Phillips, Davide Rossi, Ge' Weijers, and other
-members of the Independent JPEG Group.
-
-IJG is not associated with the official ISO JPEG standards committee.
 
 
 DOCUMENTATION ROADMAP
@@ -29,27 +30,26 @@ OVERVIEW            General description of JPEG and the IJG software.
 LEGAL ISSUES        Copyright, lack of warranty, terms of distribution.
 REFERENCES          Where to learn more about JPEG.
 ARCHIVE LOCATIONS   Where to find newer versions of this software.
-RELATED SOFTWARE    Other stuff you should get.
 FILE FORMAT WARS    Software *not* to get.
 TO DO               Plans for future IJG releases.
 
 Other documentation files in the distribution are:
 
 User documentation:
-  install.doc       How to configure and install the IJG software.
+  usage.txt         Usage instructions for cjpeg, djpeg, jpegtran,
-  usage.doc         Usage instructions for cjpeg, djpeg, rdjpgcom, wrjpgcom.
+                    rdjpgcom, and wrjpgcom.
-  *.1               Unix-style man pages for programs (same info as usage.doc).
+  *.1               Unix-style man pages for programs (same info as usage.txt).
+  wizard.txt        Advanced usage instructions for JPEG wizards only.
   change.log        Version-to-version change highlights.
 Programmer and internal documentation:
-  libjpeg.doc       How to use the JPEG library in your own programs.
+  libjpeg.txt       How to use the JPEG library in your own programs.
   example.c         Sample code for calling the JPEG library.
-  structure.doc     Overview of the JPEG library's internal structure.
+  structure.txt     Overview of the JPEG library's internal structure.
-  filelist.doc      Road map of IJG files.
+  coderules.txt     Coding style rules --- please read if you contribute code.
-  coderules.doc     Coding style rules --- please read if you contribute code.
 
-Please read at least the files install.doc and usage.doc.  Useful information
+Please read at least usage.txt.  Some information can also be found in the JPEG
-can also be found in the JPEG FAQ (Frequently Asked Questions) article.  See
+FAQ (Frequently Asked Questions) article.  See ARCHIVE LOCATIONS below to find
-ARCHIVE LOCATIONS below to find out where to obtain the FAQ article.
+out where to obtain the FAQ article.
 
 If you want to understand how the JPEG code works, we suggest reading one or
 more of the REFERENCES, then looking at the documentation files (in roughly
@@ -59,46 +59,50 @@ the order listed) before diving into the code.
 OVERVIEW
 ========
 
-This package contains C software to implement JPEG image compression and
+This package contains C software to implement JPEG image encoding, decoding,
-decompression.  JPEG (pronounced "jay-peg") is a standardized compression
+and transcoding.  JPEG (pronounced "jay-peg") is a standardized compression
-method for full-color and gray-scale images.  JPEG is intended for compressing
+method for full-color and grayscale images.  JPEG's strong suit is compressing
-"real-world" scenes; cartoons and other non-realistic images are not its
+photographic images or other types of images that have smooth color and
-strong suit.  JPEG is lossy, meaning that the output image is not necessarily
+brightness transitions between neighboring pixels.  Images with sharp lines or
-identical to the input image.  Hence you must not use JPEG if you have to have
+other abrupt features may not compress well with JPEG, and a higher JPEG
-identical output bits.  However, on typical images of real-world scenes, very
+quality may have to be used to avoid visible compression artifacts with such
-good compression levels can be obtained with no visible change, and amazingly
+images.
-high compression levels are possible if you can tolerate a low-quality image.
+
-For more details, see the references, or just experiment with various
+JPEG is lossy, meaning that the output pixels are not necessarily identical to
-compression settings.
+the input pixels.  However, on photographic content and other "smooth" images,
+very good compression ratios can be obtained with no visible compression
+artifacts, and extremely high compression ratios are possible if you are
+willing to sacrifice image quality (by reducing the "quality" setting in the
+compressor.)
+
+This software implements JPEG baseline, extended-sequential, and progressive
+compression processes.  Provision is made for supporting all variants of these
+processes, although some uncommon parameter settings aren't implemented yet.
+We have made no provision for supporting the hierarchical or lossless
+processes defined in the standard.
 
 We provide a set of library routines for reading and writing JPEG image files,
-plus two simple applications "cjpeg" and "djpeg", which use the library to
+plus two sample applications "cjpeg" and "djpeg", which use the library to
 perform conversion between JPEG and some other popular image file formats.
 The library is intended to be reused in other applications.
 
-This software implements JPEG baseline and extended-sequential compression
-processes.  Provision is made for supporting all variants of these processes,
-although some uncommon parameter settings aren't implemented yet.  For legal
-reasons, we are not distributing code for the arithmetic-coding process; see
-LEGAL ISSUES.  At present we have made no provision for supporting the
-progressive, hierarchical, or lossless processes defined in the standard.
-(Support for progressive mode will be offered in a future release.)
-
 In order to support file conversion and viewing software, we have included
 considerable functionality beyond the bare JPEG coding/decoding capability;
 for example, the color quantization modules are not strictly part of JPEG
 decoding, but they are essential for output to colormapped file formats or
 colormapped displays.  These extra functions can be compiled out of the
-library if not required for a particular application.  We have also included
+library if not required for a particular application.
-two simple applications for inserting and extracting textual comments in
+
-JFIF files.
+We have also included "jpegtran", a utility for lossless transcoding between
+different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple
+applications for inserting and extracting textual comments in JFIF files.
 
 The emphasis in designing this software has been on achieving portability and
 flexibility, while also making it fast enough to be useful.  In particular,
 the software is not intended to be read as a tutorial on JPEG.  (See the
-REFERENCES section for introductory material.)  While we hope that the entire
+REFERENCES section for introductory material.)  Rather, it is intended to
-package will someday be industrial-strength code, much remains to be done in
+be reliable, portable, industrial-strength code.  We do not claim to have
-performance tuning and in improving the capabilities of individual modules.
+achieved that goal in every aspect of the software, but we strive for it.
 
 We welcome the use of this software as a component of commercial products.
 No royalty is required, but we do ask for an acknowledgement in product
@@ -124,7 +128,7 @@ 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, 1992, 1993, 1994, 1995, Thomas G. Lane.
+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
@@ -155,34 +159,18 @@ commercial products, provided that all warranty or liability claims are
 assumed by the product vendor.
 
 
-ansi2knr.c is included in this distribution by permission of L. Peter Deutsch,
+The Unix configuration script "configure" was produced with GNU Autoconf.
-sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA.
+It is copyright by the Free Software Foundation but is freely distributable.
-ansi2knr.c is NOT covered by the above copyright and conditions, but instead
+The same holds for its supporting scripts (config.guess, config.sub,
-by the usual distribution terms of the Free Software Foundation; principally,
+ltmain.sh).  Another support script, install-sh, is copyright by X Consortium
-that you must include source code if you redistribute it.  (See the file
+but is also freely distributable.
-ansi2knr.c for full details.)  However, since ansi2knr.c is not needed as part
-of any program generated from the IJG code, this does not limit you more than
-the foregoing paragraphs do.
 
-The configuration script "configure" was produced with GNU Autoconf.  It
+The IJG distribution formerly included code to read and write GIF files.
-is copyright by the Free Software Foundation but is freely distributable.
+To avoid entanglement with the Unisys LZW patent, GIF reading support has
-
+been removed altogether, and the GIF writer has been simplified to produce
-It appears that the arithmetic coding option of the JPEG spec is covered by
+"uncompressed GIFs".  This technique does not use the LZW algorithm; the
-patents owned by IBM, AT&T, and Mitsubishi.  Hence arithmetic coding cannot
+resulting GIF files are larger than usual, but are readable by all standard
-legally be used without obtaining one or more licenses.  For this reason,
+GIF decoders.
-support for arithmetic coding has been removed from the free JPEG software.
-(Since arithmetic coding provides only a marginal gain over the unpatented
-Huffman mode, it is unlikely that very many implementations will support it.)
-So far as we are aware, there are no patent restrictions on the remaining
-code.
-
-WARNING: Unisys has begun to enforce their patent on LZW compression against
-GIF encoders and decoders.  You will need a license from Unisys to use the
-included rdgif.c or wrgif.c files in a commercial or shareware application.
-At this time, Unisys is not enforcing their patent against freeware, so
-distribution of this package remains legal.  However, we intend to remove
-GIF support from the IJG package as soon as a suitable replacement format
-becomes reasonably popular.
 
 We are required to state that
     "The Graphics Interchange Format(c) is the Copyright property of
@@ -193,7 +181,7 @@ We are required to state that
 REFERENCES
 ==========
 
-We highly recommend reading one or more of these references before trying to
+We recommend reading one or more of these references before trying to
 understand the innards of the JPEG software.
 
 The best short technical introduction to the JPEG compression algorithm is
@@ -201,158 +189,93 @@ The best short technical introduction to the JPEG compression algorithm is
 	Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44.
 (Adjacent articles in that issue discuss MPEG motion picture compression,
 applications of JPEG, and related topics.)  If you don't have the CACM issue
-handy, a PostScript file containing a revised version of Wallace's article
+handy, a PostScript file containing a revised version of Wallace's article is
-is available at ftp.uu.net, graphics/jpeg/wallace.ps.gz.  The file (actually
+available at http://www.ijg.org/files/wallace.ps.gz.  The file (actually
 a preprint for an article that appeared in IEEE Trans. Consumer Electronics)
 omits the sample images that appeared in CACM, but it includes corrections
-and some added material.  Note: the Wallace article is copyright ACM and
+and some added material.  Note: the Wallace article is copyright ACM and IEEE,
-IEEE, and it may not be used for commercial purposes.
+and it may not be used for commercial purposes.
 
 A somewhat less technical, more leisurely introduction to JPEG can be found in
-"The Data Compression Book" by Mark Nelson, published by M&T Books (Redwood
+"The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by
-City, CA), 1991, ISBN 1-55851-216-0.  This book provides good explanations and
+M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1.  This book provides
-example C code for a multitude of compression methods including JPEG.  It is
+good explanations and example C code for a multitude of compression methods
-an excellent source if you are comfortable reading C code but don't know much
+including JPEG.  It is an excellent source if you are comfortable reading C
-about data compression in general.  The book's JPEG sample code is far from
+code but don't know much about data compression in general.  The book's JPEG
-industrial-strength, but when you are ready to look at a full implementation,
+sample code is far from industrial-strength, but when you are ready to look
-you've got one here...
+at a full implementation, you've got one here...
 
-The best full description of JPEG is the textbook "JPEG Still Image Data
+The best currently available description of JPEG is the textbook "JPEG Still
-Compression Standard" by William B. Pennebaker and Joan L. Mitchell, published
+Image Data Compression Standard" by William B. Pennebaker and Joan L.
-by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1.  Price US$59.95, 638 pp.
+Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1.
-The book includes the complete text of the ISO JPEG standards (DIS 10918-1
+Price US$59.95, 638 pp.  The book includes the complete text of the ISO JPEG
-and draft DIS 10918-2).  This is by far the most complete exposition of JPEG
+standards (DIS 10918-1 and draft DIS 10918-2).
-in existence, and we highly recommend it.
 
-The JPEG standard itself is not available electronically; you must order a
+The original JPEG standard is divided into two parts, Part 1 being the actual
-paper copy through ISO.  (Unless you feel a need to own a certified official
+specification, while Part 2 covers compliance testing methods.  Part 1 is
-copy, we recommend buying the Pennebaker and Mitchell book instead; it's much
+titled "Digital Compression and Coding of Continuous-tone Still Images,
-cheaper and includes a great deal of useful explanatory material.)  In the US,
+Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS
-copies of the standard may be ordered from ANSI Sales at (212) 642-4900, or
+10918-1, ITU-T T.81.  Part 2 is titled "Digital Compression and Coding of
-from Global Engineering Documents at (800) 854-7179.  (ANSI doesn't take
+Continuous-tone Still Images, Part 2: Compliance testing" and has document
-credit card orders, but Global does.)  It's not cheap: as of 1992, ANSI was
+numbers ISO/IEC IS 10918-2, ITU-T T.83.
-charging $95 for Part 1 and $47 for Part 2, plus 7% shipping/handling.  The
-standard is divided into two parts, Part 1 being the actual specification,
-while Part 2 covers compliance testing methods.  Part 1 is titled "Digital
-Compression and Coding of Continuous-tone Still Images, Part 1: Requirements
-and guidelines" and has document number ISO/IEC IS 10918-1.  As of mid-1994,
-Part 2 is still at Draft International Standard status.  It is titled "Digital
-Compression and Coding of Continuous-tone Still Images, Part 2: Compliance
-testing" and has document number ISO/IEC DIS 10918-2.  (The document number
-will change to IS 10918-2 when final approval is obtained.)  A Part 3,
-covering extensions, is likely to appear in draft form in late 1994.
 
 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
+http://www.ijg.org/files/jfif.ps.gz.  There is also a plain text version at
-A PostScript version of this document is available at ftp.uu.net, file
+http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures.
-graphics/jpeg/jfif.ps.gz.  It can also be obtained by e-mail from the C-Cube
-mail server, netlib@c3.pla.ca.us.  Send the message "send jfif_ps from jpeg"
-to the server to obtain the JFIF document; send the message "help" if you have
-trouble.
 
-The TIFF 6.0 file format specification can be obtained by FTP from sgi.com
+The TIFF 6.0 file format specification can be obtained by FTP from
-(192.48.153.1), file graphics/tiff/TIFF6.ps.Z; or you can order a printed copy
+ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz.  The JPEG incorporation scheme
-from Aldus Corp. at (206) 628-6593.  It should be noted that the TIFF 6.0 spec
+found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems.
-of 3-June-92 has a number of serious problems in its JPEG features.  A
+IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6).
-redesign effort is currently underway to correct these problems; it is
+Instead, we recommend the JPEG design proposed by TIFF Technical Note #2
-expected to result in a new, incompatible, spec.  IJG intends to support the
+(Compression tag 7).  Copies of this Note can be obtained from
-corrected version of TIFF when the new spec is issued.
+http://www.ijg.org/files/.  It is expected that the next revision
+of the TIFF spec will replace the 6.0 JPEG design with the Note's design.
+Although IJG's own code does not support TIFF/JPEG, the free libtiff library
+uses our library to implement TIFF/JPEG per the Note.
 
 
 ARCHIVE LOCATIONS
 =================
 
-The "official" archive site for this software is ftp.uu.net (Internet
+The "official" archive site for this software is www.ijg.org.
-address 192.48.96.9).  The most recent released version can always be found
+The most recent released version can always be found there in
-there in directory graphics/jpeg.  This particular version will be archived
+directory "files".  This particular version will be archived as
-as graphics/jpeg/jpegsrc.v5b.tar.gz.  If you are on the Internet, you
+http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible
-can retrieve files from ftp.uu.net by standard anonymous FTP.  If you don't
+"zip" archive format as http://www.ijg.org/files/jpegsr8d.zip.
-have FTP access, UUNET's archives are also available via UUCP; contact
-help@uunet.uu.net for information on retrieving files that way.
 
-Numerous Internet sites maintain copies of the UUNET files; in particular,
+The JPEG FAQ (Frequently Asked Questions) article is a source of some
-you can probably find a copy at any site that archives comp.sources.misc
+general information about JPEG.
-submissions.  However, only ftp.uu.net is guaranteed to have the latest
+It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/
-official version.
+and other news.answers archive sites, including the official news.answers
-
+archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/.
-You can also obtain this software from CompuServe, in the GRAPHSUPPORT forum
+If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu
-(GO GRAPHSUP), library 12 "JPEG Tools".  Again, CompuServe is not guaranteed
-to have the very latest version.
-
-The JPEG FAQ (Frequently Asked Questions) article is a useful source of
-general information about JPEG.  It is updated constantly and therefore is
-not included in this distribution.  The FAQ is posted every two weeks to
-Usenet newsgroups comp.graphics, news.answers, and other groups.  You can
-always obtain the latest version from the news.answers archive at
-rtfm.mit.edu.  By FTP, fetch /pub/usenet/news.answers/jpeg-faq/part1 and
-.../part2.  If you don't have FTP, send e-mail to mail-server@rtfm.mit.edu
 with body
 	send usenet/news.answers/jpeg-faq/part1
 	send usenet/news.answers/jpeg-faq/part2
 
 
-RELATED SOFTWARE
-================
-
-Numerous viewing and image manipulation programs now support JPEG.  (Quite a
-few of them use this library to do so.)  The JPEG FAQ described above lists
-some of the more popular free and shareware viewers, and tells where to
-obtain them on Internet.
-
-If you are on a Unix machine, we highly recommend Jef Poskanzer's free
-PBMPLUS image software, which provides many useful operations on PPM-format
-image files.  In particular, it can convert PPM images to and from a wide
-range of other formats.  You can obtain this package by FTP from ftp.x.org
-(contrib/pbmplus*.tar.Z) or ftp.ee.lbl.gov (pbmplus*.tar.Z).  There is also
-a newer update of this package called NETPBM, available from
-wuarchive.wustl.edu under directory /graphics/graphics/packages/NetPBM/.
-Unfortunately PBMPLUS/NETPBM is not nearly as portable as the IJG software
-is; you are likely to have difficulty making it work on any non-Unix machine.
-
-A different free JPEG implementation, written by the PVRG group at Stanford,
-is available from havefun.stanford.edu in directory pub/jpeg.  This program
-is designed for research and experimentation rather than production use;
-it is slower, harder to use, and less portable than the IJG code, but it
-implements a larger subset of the JPEG standard.  In particular, it supports
-lossless JPEG.
-
-
 FILE FORMAT WARS
 ================
 
-Some JPEG programs produce files that are not compatible with our library.
+The ISO/IEC JTC1/SC29/WG1 standards committee (also known as JPEG, together
-The root of the problem is that the ISO JPEG committee failed to specify a
+with ITU-T SG16) currently promotes different formats containing the name
-concrete file format.  Some vendors "filled in the blanks" on their own,
+"JPEG" which are incompatible with original DCT-based JPEG.  IJG therefore does
-creating proprietary formats that no one else could read.  (For example, none
+not support these formats (see REFERENCES).  Indeed, one of the original
-of the early commercial JPEG implementations for the Macintosh were able to
+reasons for developing this free software was to help force convergence on
-exchange compressed files.)
+common, interoperable format standards for JPEG files.
-
+Don't use an incompatible file format!
-The file format we have adopted is called JFIF (see REFERENCES).  This format
+(In any case, our decoder will remain capable of reading existing JPEG
-has been agreed to by a number of major commercial JPEG vendors, and it has
+image files indefinitely.)
-become the de facto standard.  JFIF is a minimal or "low end" representation.
-Work is also going forward to incorporate JPEG compression into the TIFF
-standard, for use in "high end" applications that need to record a lot of
-additional data about an image.  We intend to support TIFF in the future.
-We hope that these two formats will be sufficient and that other,
-incompatible JPEG file formats will not proliferate.
-
-Indeed, part of the reason for developing and releasing this free software is
-to help force rapid convergence to de facto standards for JPEG file formats.
-SUPPORT STANDARD, NON-PROPRIETARY FORMATS: demand JFIF or TIFF/JPEG!
 
 
 TO DO
 =====
 
-In future versions, we are considering supporting progressive JPEG
+Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org.
-compression, the upcoming JPEG Part 3 extensions, and other improvements.
-
-As always, speeding things up is high on our priority list.
-
-Please send bug reports, offers of help, etc. to jpeg-info@uunet.uu.net.

README-turbo.txt

@@ -0,0 +1,364 @@
+*******************************************************************************
+**     Background
+*******************************************************************************
+
+libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2,
+NEON) to accelerate baseline JPEG compression and decompression on x86, x86-64,
+and ARM systems.  On such systems, libjpeg-turbo is generally 2-4x as fast as
+libjpeg, all else being equal.  On other types of systems, libjpeg-turbo can
+still outperform libjpeg by a significant amount, by virtue of its
+highly-optimized Huffman coding routines.  In many cases, the performance of
+libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.
+
+libjpeg-turbo implements both the traditional libjpeg API as well as the less
+powerful but more straightforward TurboJPEG API.  libjpeg-turbo also features
+colorspace extensions that allow it to compress from/decompress to 32-bit and
+big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java
+interface.
+
+libjpeg-turbo was originally based on libjpeg/SIMD, an MMX-accelerated
+derivative of libjpeg v6b developed by Miyasaka Masaru.  The TigerVNC and
+VirtualGL projects made numerous enhancements to the codec in 2009, and in
+early 2010, libjpeg-turbo spun off into an independent project, with the goal
+of making high-speed JPEG compression/decompression technology available to a
+broader range of users and developers.
+
+
+*******************************************************************************
+**     License
+*******************************************************************************
+
+Most of libjpeg-turbo inherits the non-restrictive, BSD-style license used by
+libjpeg (see README.)  The TurboJPEG wrapper (both C and Java versions) and
+associated test programs bear a similar license, which is reproduced below:
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+- Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+- Neither the name of the libjpeg-turbo Project nor the names of its
+  contributors may be used to endorse or promote products derived from this
+  software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+
+*******************************************************************************
+**     Using libjpeg-turbo
+*******************************************************************************
+
+libjpeg-turbo includes two APIs that can be used to compress and decompress
+JPEG images:
+
+  TurboJPEG API:  This API provides an easy-to-use interface for compressing
+  and decompressing JPEG images in memory.  It also provides some functionality
+  that would not be straightforward to achieve using the underlying libjpeg
+  API, such as generating planar YUV images and performing multiple
+  simultaneous lossless transforms on an image.  The Java interface for
+  libjpeg-turbo is written on top of the TurboJPEG API.
+
+  libjpeg API:  This is the de facto industry-standard API for compressing and
+  decompressing JPEG images.  It is more difficult to use than the TurboJPEG
+  API but also more powerful.  The libjpeg API implementation in libjpeg-turbo
+  is both API/ABI-compatible and mathematically compatible with libjpeg v6b.
+  It can also optionally be configured to be API/ABI-compatible with libjpeg v7
+  and v8 (see below.)
+
+There is no significant performance advantage to either API when both are used
+to perform similar operations.
+
+=====================
+Colorspace Extensions
+=====================
+
+libjpeg-turbo includes extensions that allow JPEG images to be compressed
+directly from (and decompressed directly to) buffers that use BGR, BGRX,
+RGBX, XBGR, and XRGB pixel ordering.  This is implemented with ten new
+colorspace constants:
+
+  JCS_EXT_RGB   /* red/green/blue */
+  JCS_EXT_RGBX  /* red/green/blue/x */
+  JCS_EXT_BGR   /* blue/green/red */
+  JCS_EXT_BGRX  /* blue/green/red/x */
+  JCS_EXT_XBGR  /* x/blue/green/red */
+  JCS_EXT_XRGB  /* x/red/green/blue */
+  JCS_EXT_RGBA  /* red/green/blue/alpha */
+  JCS_EXT_BGRA  /* blue/green/red/alpha */
+  JCS_EXT_ABGR  /* alpha/blue/green/red */
+  JCS_EXT_ARGB  /* alpha/red/green/blue */
+
+Setting cinfo.in_color_space (compression) or cinfo.out_color_space
+(decompression) to one of these values will cause libjpeg-turbo to read the
+red, green, and blue values from (or write them to) the appropriate position in
+the pixel when compressing from/decompressing to an RGB buffer.
+
+Your application can check for the existence of these extensions at compile
+time with:
+
+  #ifdef JCS_EXTENSIONS
+
+At run time, attempting to use these extensions with a libjpeg implementation
+that does not support them will result in a "Bogus input colorspace" error.
+Applications can trap this error in order to test whether run-time support is
+available for the colorspace extensions.
+
+When using the RGBX, BGRX, XBGR, and XRGB colorspaces during decompression, the
+X byte is undefined, and in order to ensure the best performance, libjpeg-turbo
+can set that byte to whatever value it wishes.  If an application expects the X
+byte to be used as an alpha channel, then it should specify JCS_EXT_RGBA,
+JCS_EXT_BGRA, JCS_EXT_ABGR, or JCS_EXT_ARGB.  When these colorspace constants
+are used, the X byte is guaranteed to be 0xFF, which is interpreted as opaque.
+
+Your application can check for the existence of the alpha channel colorspace
+extensions at compile time with:
+
+  #ifdef JCS_ALPHA_EXTENSIONS
+
+jcstest.c, located in the libjpeg-turbo source tree, demonstrates how to check
+for the existence of the colorspace extensions at compile time and run time.
+
+===================================
+libjpeg v7 and v8 API/ABI Emulation
+===================================
+
+With libjpeg v7 and v8, new features were added that necessitated extending the
+compression and decompression structures.  Unfortunately, due to the exposed
+nature of those structures, extending them also necessitated breaking backward
+ABI compatibility with previous libjpeg releases.  Thus, programs that were
+built to use libjpeg v7 or v8 did not work with libjpeg-turbo, since it is
+based on the libjpeg v6b code base.  Although libjpeg v7 and v8 are not
+as widely used as v6b, enough programs (including a few Linux distros) made
+the switch that there was a demand to emulate the libjpeg v7 and v8 ABIs
+in libjpeg-turbo.  It should be noted, however, that this feature was added
+primarily so that applications that had already been compiled to use libjpeg
+v7+ could take advantage of accelerated baseline JPEG encoding/decoding
+without recompiling.  libjpeg-turbo does not claim to support all of the
+libjpeg v7+ features, nor to produce identical output to libjpeg v7+ in all
+cases (see below.)
+
+By passing an argument of --with-jpeg7 or --with-jpeg8 to configure, or an
+argument of -DWITH_JPEG7=1 or -DWITH_JPEG8=1 to cmake, you can build a version
+of libjpeg-turbo that emulates the libjpeg v7 or v8 ABI, so that programs
+that are built against libjpeg v7 or v8 can be run with libjpeg-turbo.  The
+following section describes which libjpeg v7+ features are supported and which
+aren't.
+
+Support for libjpeg v7 and v8 Features:
+---------------------------------------
+
+Fully supported:
+
+-- libjpeg: IDCT scaling extensions in decompressor
+   libjpeg-turbo supports IDCT scaling with scaling factors of 1/8, 1/4, 3/8,
+   1/2, 5/8, 3/4, 7/8, 9/8, 5/4, 11/8, 3/2, 13/8, 7/4, 15/8, and 2/1 (only 1/4
+   and 1/2 are SIMD-accelerated.)
+
+-- libjpeg: arithmetic coding
+
+-- libjpeg: In-memory source and destination managers
+   See notes below.
+
+-- cjpeg: Separate quality settings for luminance and chrominance
+   Note that the libpjeg v7+ API was extended to accommodate this feature only
+   for convenience purposes.  It has always been possible to implement this
+   feature with libjpeg v6b (see rdswitch.c for an example.)
+
+-- cjpeg: 32-bit BMP support
+
+-- cjpeg: -rgb option
+
+-- jpegtran: lossless cropping
+
+-- jpegtran: -perfect option
+
+-- jpegtran: forcing width/height when performing lossless crop
+
+-- rdjpgcom: -raw option
+
+-- rdjpgcom: locale awareness
+
+
+Not supported:
+
+NOTE:  As of this writing, extensive research has been conducted into the
+usefulness of DCT scaling as a means of data reduction and SmartScale as a
+means of quality improvement.  The reader is invited to peruse the research at
+http://www.libjpeg-turbo.org/About/SmartScale and draw his/her own conclusions,
+but it is the general belief of our project that these features have not
+demonstrated sufficient usefulness to justify inclusion in libjpeg-turbo.
+
+-- libjpeg: DCT scaling in compressor
+   cinfo.scale_num and cinfo.scale_denom are silently ignored.
+   There is no technical reason why DCT scaling could not be supported when
+   emulating the libjpeg v7+ API/ABI, but without the SmartScale extension (see
+   below), only scaling factors of 1/2, 8/15, 4/7, 8/13, 2/3, 8/11, 4/5, and
+   8/9 would be available, which is of limited usefulness.
+
+-- libjpeg: SmartScale
+   cinfo.block_size is silently ignored.
+   SmartScale is an extension to the JPEG format that allows for DCT block
+   sizes other than 8x8.  Providing support for this new format would be
+   feasible (particularly without full acceleration.)  However, until/unless
+   the format becomes either an official industry standard or, at minimum, an
+   accepted solution in the community, we are hesitant to implement it, as
+   there is no sense of whether or how it might change in the future.  It is
+   our belief that SmartScale has not demonstrated sufficient usefulness as a
+   lossless format nor as a means of quality enhancement, and thus, our primary
+   interest in providing this feature would be as a means of supporting
+   additional DCT scaling factors.
+
+-- libjpeg: Fancy downsampling in compressor
+   cinfo.do_fancy_downsampling is silently ignored.
+   This requires the DCT scaling feature, which is not supported.
+
+-- jpegtran: Scaling
+   This requires both the DCT scaling and SmartScale features, which are not
+   supported.
+
+-- Lossless RGB JPEG files
+   This requires the SmartScale feature, which is not supported.
+
+What About libjpeg v9?
+----------------------
+
+libjpeg v9 introduced yet another field to the JPEG compression structure
+(color_transform), thus making the ABI backward incompatible with that of
+libjpeg v8.  This new field was introduced solely for the purpose of supporting
+lossless SmartScale encoding.  Further, there was actually no reason to extend
+the API in this manner, as the color transform could have just as easily been
+activated by way of a new JPEG colorspace constant, thus preserving backward
+ABI compatibility.
+
+Our research (see link above) has shown that lossless SmartScale does not
+generally accomplish anything that can't already be accomplished better with
+existing, standard lossless formats.  Thus, at this time, it is our belief that
+there is not sufficient technical justification for software to upgrade from
+libjpeg v8 to libjpeg v9, and therefore, not sufficient technical justification
+for us to emulate the libjpeg v9 ABI.
+
+=====================================
+In-Memory Source/Destination Managers
+=====================================
+
+By default, libjpeg-turbo 1.3 and later includes the jpeg_mem_src() and
+jpeg_mem_dest() functions, even when not emulating the libjpeg v8 API/ABI.
+Previously, it was necessary to build libjpeg-turbo from source with libjpeg v8
+API/ABI emulation in order to use the in-memory source/destination managers,
+but several projects requested that those functions be included when emulating
+the libjpeg v6b API/ABI as well.  This allows the use of those functions by
+programs that need them without breaking ABI compatibility for programs that
+don't, and it allows those functions to be provided in the "official"
+libjpeg-turbo binaries.
+
+Those who are concerned about maintaining strict conformance with the libjpeg
+v6b or v7 API can pass an argument of --without-mem-srcdst to configure or
+an argument of -DWITH_MEM_SRCDST=0 to CMake prior to building libjpeg-turbo.
+This will restore the pre-1.3 behavior, in which jpeg_mem_src() and
+jpeg_mem_dest() are only included when emulating the libjpeg v8 API/ABI.
+
+On Un*x systems, including the in-memory source/destination managers changes
+the dynamic library version from 62.0.0 to 62.1.0 if using libjpeg v6b API/ABI
+emulation and from 7.0.0 to 7.1.0 if using libjpeg v7 API/ABI emulation.
+
+Note that, on most Un*x systems, the dynamic linker will not look for a
+function in a library until that function is actually used.  Thus, if a program
+is built against libjpeg-turbo 1.3+ and uses jpeg_mem_src() or jpeg_mem_dest(),
+that program will not fail if run against an older version of libjpeg-turbo or
+against libjpeg v7- until the program actually tries to call jpeg_mem_src() or
+jpeg_mem_dest().  Such is not the case on Windows.  If a program is built
+against the libjpeg-turbo 1.3+ DLL and uses jpeg_mem_src() or jpeg_mem_dest(),
+then it must use the libjpeg-turbo 1.3+ DLL at run time.
+
+Both cjpeg and djpeg have been extended to allow testing the in-memory
+source/destination manager functions.  See their respective man pages for more
+details.
+
+
+*******************************************************************************
+**     Mathematical Compatibility
+*******************************************************************************
+
+For the most part, libjpeg-turbo should produce identical output to libjpeg
+v6b.  The one exception to this is when using the floating point DCT/IDCT, in
+which case the outputs of libjpeg v6b and libjpeg-turbo can differ for the
+following reasons:
+
+-- The SSE/SSE2 floating point DCT implementation in libjpeg-turbo is ever so
+   slightly more accurate than the implementation in libjpeg v6b, but not by
+   any amount perceptible to human vision (generally in the range of 0.01 to
+   0.08 dB gain in PNSR.)
+-- When not using the SIMD extensions, libjpeg-turbo uses the more accurate
+   (and slightly faster) floating point IDCT algorithm introduced in libjpeg
+   v8a as opposed to the algorithm used in libjpeg v6b.  It should be noted,
+   however, that this algorithm basically brings the accuracy of the floating
+   point IDCT in line with the accuracy of the slow integer IDCT.  The floating
+   point DCT/IDCT algorithms are mainly a legacy feature, and they do not
+   produce significantly more accuracy than the slow integer algorithms (to put
+   numbers on this, the typical difference in PNSR between the two algorithms
+   is less than 0.10 dB, whereas changing the quality level by 1 in the upper
+   range of the quality scale is typically more like a 1.0 dB difference.)
+-- If the floating point algorithms in libjpeg-turbo are not implemented using
+   SIMD instructions on a particular platform, then the accuracy of the
+   floating point DCT/IDCT can depend on the compiler settings.
+
+While libjpeg-turbo does emulate the libjpeg v8 API/ABI, under the hood, it is
+still using the same algorithms as libjpeg v6b, so there are several specific
+cases in which libjpeg-turbo cannot be expected to produce the same output as
+libjpeg v8:
+
+-- When decompressing using scaling factors of 1/2 and 1/4, because libjpeg v8
+   implements those scaling algorithms differently than libjpeg v6b does, and
+   libjpeg-turbo's SIMD extensions are based on the libjpeg v6b behavior.
+
+-- When using chrominance subsampling, because libjpeg v8 implements this
+   with its DCT/IDCT scaling algorithms rather than with a separate
+   downsampling/upsampling algorithm.  In our testing, the subsampled/upsampled
+   output of libjpeg v8 is less accurate than that of libjpeg v6b for this
+   reason.
+
+-- When decompressing using a scaling factor > 1 and merged (AKA "non-fancy" or
+   "non-smooth") chrominance upsampling, because libjpeg v8 does not support
+   merged upsampling with scaling factors > 1.
+
+
+*******************************************************************************
+**     Performance Pitfalls
+*******************************************************************************
+
+===============
+Restart Markers
+===============
+
+The optimized Huffman decoder in libjpeg-turbo does not handle restart markers
+in a way that makes the rest of the libjpeg infrastructure happy, so it is
+necessary to use the slow Huffman decoder when decompressing a JPEG image that
+has restart markers.  This can cause the decompression performance to drop by
+as much as 20%, but the performance will still be much greater than that of
+libjpeg.  Many consumer packages, such as PhotoShop, use restart markers when
+generating JPEG images, so images generated by those programs will experience
+this issue.
+
+===============================================
+Fast Integer Forward DCT at High Quality Levels
+===============================================
+
+The algorithm used by the SIMD-accelerated quantization function cannot produce
+correct results whenever the fast integer forward DCT is used along with a JPEG
+quality of 98-100.  Thus, libjpeg-turbo must use the non-SIMD quantization
+function in those cases.  This causes performance to drop by as much as 40%.
+It is therefore strongly advised that you use the slow integer forward DCT
+whenever encoding images with a JPEG quality of 98 or higher.

acinclude.m4

@@ -0,0 +1,247 @@
+# AC_PROG_NASM
+# --------------------------
+# Check that NASM exists and determine flags
+AC_DEFUN([AC_PROG_NASM],[
+
+AC_CHECK_PROGS(NASM, [nasm nasmw yasm])
+test -z "$NASM" && AC_MSG_ERROR([no nasm (Netwide Assembler) found])
+
+AC_MSG_CHECKING([for object file format of host system])
+case "$host_os" in
+  cygwin* | mingw* | pw32* | interix*)
+    case "$host_cpu" in
+      x86_64)
+        objfmt='Win64-COFF'
+        ;;
+      *)
+        objfmt='Win32-COFF'
+        ;;
+    esac
+  ;;
+  msdosdjgpp* | go32*)
+    objfmt='COFF'
+  ;;
+  os2-emx*)			# not tested
+    objfmt='MSOMF'		# obj
+  ;;
+  linux*coff* | linux*oldld*)
+    objfmt='COFF'		# ???
+  ;;
+  linux*aout*)
+    objfmt='a.out'
+  ;;
+  linux*)
+    case "$host_cpu" in
+      x86_64)
+        objfmt='ELF64'
+        ;;
+      *)
+        objfmt='ELF'
+        ;;
+    esac
+  ;;
+  kfreebsd* | freebsd* | netbsd* | openbsd*)
+    if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
+      objfmt='BSD-a.out'
+    else
+      case "$host_cpu" in
+        x86_64 | amd64)
+          objfmt='ELF64'
+          ;;
+        *)
+          objfmt='ELF'
+          ;;
+      esac
+    fi
+  ;;
+  solaris* | sunos* | sysv* | sco*)
+    case "$host_cpu" in
+      x86_64)
+        objfmt='ELF64'
+        ;;
+      *)
+        objfmt='ELF'
+        ;;
+    esac
+  ;;
+  darwin* | rhapsody* | nextstep* | openstep* | macos*)
+    case "$host_cpu" in
+      x86_64)
+        objfmt='Mach-O64'
+        ;;
+      *)
+        objfmt='Mach-O'
+        ;;
+    esac
+  ;;
+  *)
+    objfmt='ELF ?'
+  ;;
+esac
+
+AC_MSG_RESULT([$objfmt])
+if test "$objfmt" = 'ELF ?'; then
+  objfmt='ELF'
+  AC_MSG_WARN([unexpected host system. assumed that the format is $objfmt.])
+fi
+
+AC_MSG_CHECKING([for object file format specifier (NAFLAGS) ])
+case "$objfmt" in
+  MSOMF)      NAFLAGS='-fobj -DOBJ32';;
+  Win32-COFF) NAFLAGS='-fwin32 -DWIN32';;
+  Win64-COFF) NAFLAGS='-fwin64 -DWIN64 -D__x86_64__';;
+  COFF)       NAFLAGS='-fcoff -DCOFF';;
+  a.out)      NAFLAGS='-faout -DAOUT';;
+  BSD-a.out)  NAFLAGS='-faoutb -DAOUT';;
+  ELF)        NAFLAGS='-felf -DELF';;
+  ELF64)      NAFLAGS='-felf64 -DELF -D__x86_64__';;
+  RDF)        NAFLAGS='-frdf -DRDF';;
+  Mach-O)     NAFLAGS='-fmacho -DMACHO';;
+  Mach-O64)   NAFLAGS='-fmacho64 -DMACHO -D__x86_64__';;
+esac
+AC_MSG_RESULT([$NAFLAGS])
+AC_SUBST([NAFLAGS])
+
+AC_MSG_CHECKING([whether the assembler ($NASM $NAFLAGS) works])
+cat > conftest.asm <<EOF
+[%line __oline__ "configure"
+        section .text
+        global  _main,main
+_main:
+main:   xor     eax,eax
+        ret
+]EOF
+try_nasm='$NASM $NAFLAGS -o conftest.o conftest.asm'
+if AC_TRY_EVAL(try_nasm) && test -s conftest.o; then
+  AC_MSG_RESULT(yes)
+else
+  echo "configure: failed program was:" >&AC_FD_CC
+  cat conftest.asm >&AC_FD_CC
+  rm -rf conftest*
+  AC_MSG_RESULT(no)
+  AC_MSG_ERROR([installation or configuration problem: assembler cannot create object files.])
+fi
+
+AC_MSG_CHECKING([whether the linker accepts assembler output])
+try_nasm='${CC-cc} -o conftest${ac_exeext} $LDFLAGS conftest.o $LIBS 1>&AC_FD_CC'
+if AC_TRY_EVAL(try_nasm) && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  AC_MSG_RESULT(yes)
+else
+  rm -rf conftest*
+  AC_MSG_RESULT(no)
+  AC_MSG_ERROR([configuration problem: maybe object file format mismatch.])
+fi
+
+])
+
+# AC_CHECK_COMPATIBLE_ARM_ASSEMBLER_IFELSE
+# --------------------------
+# Test whether the assembler is suitable and supports NEON instructions
+AC_DEFUN([AC_CHECK_COMPATIBLE_ARM_ASSEMBLER_IFELSE],[
+  ac_good_gnu_arm_assembler=no
+  ac_save_CC="$CC"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS="$CCASFLAGS -x assembler-with-cpp"
+  CC="$CCAS"
+  AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+    .text
+    .fpu neon
+    .arch armv7a
+    .object_arch armv4
+    .arm
+    pld [r0]
+    vmovn.u16 d0, q0]])], ac_good_gnu_arm_assembler=yes)
+
+  ac_use_gas_preprocessor=no
+  if test "x$ac_good_gnu_arm_assembler" = "xno" ; then
+    CC="gas-preprocessor.pl $CCAS"
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+      .text
+      .fpu neon
+      .arch armv7a
+      .object_arch armv4
+      .arm
+      pld [r0]
+      vmovn.u16 d0, q0]])], ac_use_gas_preprocessor=yes)
+  fi
+  CFLAGS="$ac_save_CFLAGS"
+  CC="$ac_save_CC"
+
+  if test "x$ac_use_gas_preprocessor" = "xyes" ; then
+    CCAS="gas-preprocessor.pl $CCAS"
+    AC_SUBST([CCAS])
+    ac_good_gnu_arm_assembler=yes
+  fi
+
+  if test "x$ac_good_gnu_arm_assembler" = "xyes" ; then
+    $1
+  else
+    $2
+  fi
+])
+
+# AC_CHECK_COMPATIBLE_MIPSEL_ASSEMBLER_IFELSE
+# --------------------------
+# Test whether the assembler is suitable and supports MIPS instructions
+AC_DEFUN([AC_CHECK_COMPATIBLE_MIPS_ASSEMBLER_IFELSE],[
+  have_mips_dspr2=no
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS="$CCASFLAGS -mdspr2"
+
+  AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+
+  int main ()
+  {
+    int c = 0, a = 0, b = 0;
+    __asm__ __volatile__ (
+        "precr.qb.ph %[c], %[a], %[b]          \n\t"
+        : [c] "=r" (c)
+        : [a] "r" (a), [b] "r" (b)
+    );
+    return c;
+  }
+  ]])], have_mips_dspr2=yes)
+  CFLAGS=$ac_save_CFLAGS
+
+  if test "x$have_mips_dspr2" = "xyes" ; then
+    $1
+  else
+    $2
+  fi
+])
+
+AC_DEFUN([AC_CHECK_COMPATIBLE_ARM64_ASSEMBLER_IFELSE],[
+  ac_good_gnu_arm_assembler=no
+  ac_save_CC="$CC"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS="$CCASFLAGS -x assembler-with-cpp"
+  CC="$CCAS"
+  AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+    .text
+    .arch armv8-a+fp+simd
+    movi v0.16b, #100]])], ac_good_gnu_arm_assembler=yes)
+
+  ac_use_gas_preprocessor=no
+  if test "x$ac_good_gnu_arm_assembler" = "xno" ; then
+    CC="gas-preprocessor.pl $CCAS"
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+      .text
+      .arch armv8-a+fp+simd
+      movi v0.16b, #100]])], ac_use_gas_preprocessor=yes)
+  fi
+  CFLAGS="$ac_save_CFLAGS"
+  CC="$ac_save_CC"
+
+  if test "x$ac_use_gas_preprocessor" = "xyes" ; then
+    CCAS="gas-preprocessor.pl $CCAS"
+    AC_SUBST([CCAS])
+    ac_good_gnu_arm_assembler=yes
+  fi
+
+  if test "x$ac_good_gnu_arm_assembler" = "xyes" ; then
+    $1
+  else
+    $2
+  fi
+])

ansi2knr.1

@@ -1,19 +0,0 @@
-.TH ANSI2KNR 1 "31 December 1990" 
-.SH NAME
-ansi2knr \- convert ANSI C to Kernighan & Ritchie C
-.SH SYNOPSIS
-.I ansi2knr
-input_file output_file
-.SH DESCRIPTION
-If no output_file is supplied, output goes to stdout.
-.br
-There are no error messages.
-.sp
-.I ansi2knr
-recognizes functions by seeing a non-keyword identifier at the left margin, followed by a left parenthesis, with a right parenthesis as the last character on the line.  It will recognize a multi-line header if the last character on each line but the last is a left parenthesis or comma.  These algorithms ignore whitespace and comments, except that the function name must be the first thing on the line.
-.sp
-The following constructs will confuse it:
-.br
-     - Any other construct that starts at the left margin and follows the above syntax (such as a macro or function call).
-.br
-     - Macros that tinker with the syntax of the function header.

ansi2knr.c

@@ -1,488 +0,0 @@
-/* Copyright (C) 1989, 1991, 1993 Aladdin Enterprises. All rights reserved. */
-
-/* ansi2knr.c */
-/* Convert ANSI function declarations to K&R syntax */
-
-/*
-ansi2knr is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY.  No author or distributor accepts responsibility
-to anyone for the consequences of using it or for whether it serves any
-particular purpose or works at all, unless he says so in writing.  Refer
-to the GNU General Public License for full details.
-
-Everyone is granted permission to copy, modify and redistribute
-ansi2knr, but only under the conditions described in the GNU
-General Public License.  A copy of this license is supposed to have been
-given to you along with ansi2knr so you can know your rights and
-responsibilities.  It should be in a file named COPYING.  Among other
-things, the copyright notice and this notice must be preserved on all
-copies.
-*/
-
-/*
----------- Here is the GNU GPL file COPYING, referred to above ----------
------ These terms do NOT apply to the JPEG software itself; see README ------
-
-		    GHOSTSCRIPT GENERAL PUBLIC LICENSE
-		    (Clarified 11 Feb 1988)
-
- Copyright (C) 1988 Richard M. Stallman
- Everyone is permitted to copy and distribute verbatim copies of this
- license, but changing it is not allowed.  You can also use this wording
- to make the terms for other programs.
-
-  The license agreements of most software companies keep you at the
-mercy of those companies.  By contrast, our general public license is
-intended to give everyone the right to share Ghostscript.  To make sure
-that you get the rights we want you to have, we need to make
-restrictions that forbid anyone to deny you these rights or to ask you
-to surrender the rights.  Hence this license agreement.
-
-  Specifically, we want to make sure that you have the right to give
-away copies of Ghostscript, that you receive source code or else can get
-it if you want it, that you can change Ghostscript or use pieces of it
-in new free programs, and that you know you can do these things.
-
-  To make sure that everyone has such rights, we have to forbid you to
-deprive anyone else of these rights.  For example, if you distribute
-copies of Ghostscript, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must tell them their rights.
-
-  Also, for our own protection, we must make certain that everyone finds
-out that there is no warranty for Ghostscript.  If Ghostscript is
-modified by someone else and passed on, we want its recipients to know
-that what they have is not what we distributed, so that any problems
-introduced by others will not reflect on our reputation.
-
-  Therefore we (Richard M. Stallman and the Free Software Foundation,
-Inc.) make the following terms which say what you must do to be allowed
-to distribute or change Ghostscript.
-
-
-			COPYING POLICIES
-
-  1. You may copy and distribute verbatim copies of Ghostscript source
-code as you receive it, in any medium, provided that you conspicuously
-and appropriately publish on each copy a valid copyright and license
-notice "Copyright (C) 1989 Aladdin Enterprises.  All rights reserved.
-Distributed by Free Software Foundation, Inc." (or with whatever year is
-appropriate); keep intact the notices on all files that refer to this
-License Agreement and to the absence of any warranty; and give any other
-recipients of the Ghostscript program a copy of this License Agreement
-along with the program.  You may charge a distribution fee for the
-physical act of transferring a copy.
-
-  2. You may modify your copy or copies of Ghostscript or any portion of
-it, and copy and distribute such modifications under the terms of
-Paragraph 1 above, provided that you also do the following:
-
-    a) cause the modified files to carry prominent notices stating
-    that you changed the files and the date of any change; and
-
-    b) cause the whole of any work that you distribute or publish,
-    that in whole or in part contains or is a derivative of Ghostscript
-    or any part thereof, to be licensed at no charge to all third
-    parties on terms identical to those contained in this License
-    Agreement (except that you may choose to grant more extensive
-    warranty protection to some or all third parties, at your option).
-
-    c) You may charge a distribution fee for the physical act of
-    transferring a copy, and you may at your option offer warranty
-    protection in exchange for a fee.
-
-Mere aggregation of another unrelated program with this program (or its
-derivative) on a volume of a storage or distribution medium does not bring
-the other program under the scope of these terms.
-
-  3. You may copy and distribute Ghostscript (or a portion or derivative
-of it, under Paragraph 2) in object code or executable form under the
-terms of Paragraphs 1 and 2 above provided that you also do one of the
-following:
-
-    a) accompany it with the complete corresponding machine-readable
-    source code, which must be distributed under the terms of
-    Paragraphs 1 and 2 above; or,
-
-    b) accompany it with a written offer, valid for at least three
-    years, to give any third party free (except for a nominal
-    shipping charge) a complete machine-readable copy of the
-    corresponding source code, to be distributed under the terms of
-    Paragraphs 1 and 2 above; or,
-
-    c) accompany it with the information you received as to where the
-    corresponding source code may be obtained.  (This alternative is
-    allowed only for noncommercial distribution and only if you
-    received the program in object code or executable form alone.)
-
-For an executable file, complete source code means all the source code for
-all modules it contains; but, as a special exception, it need not include
-source code for modules which are standard libraries that accompany the
-operating system on which the executable file runs.
-
-  4. You may not copy, sublicense, distribute or transfer Ghostscript
-except as expressly provided under this License Agreement.  Any attempt
-otherwise to copy, sublicense, distribute or transfer Ghostscript is
-void and your rights to use the program under this License agreement
-shall be automatically terminated.  However, parties who have received
-computer software programs from you with this License Agreement will not
-have their licenses terminated so long as such parties remain in full
-compliance.
-
-  5. If you wish to incorporate parts of Ghostscript into other free
-programs whose distribution conditions are different, write to the Free
-Software Foundation at 675 Mass Ave, Cambridge, MA 02139.  We have not
-yet worked out a simple rule that can be stated here, but we will often
-permit this.  We will be guided by the two goals of preserving the free
-status of all derivatives of our free software and of promoting the
-sharing and reuse of software.
-
-Your comments and suggestions about our licensing policies and our
-software are welcome!  Please contact the Free Software Foundation,
-Inc., 675 Mass Ave, Cambridge, MA 02139, or call (617) 876-3296.
-
-		       NO WARRANTY
-
-  BECAUSE GHOSTSCRIPT IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
-NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW.  EXCEPT
-WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC, RICHARD
-M. STALLMAN, ALADDIN ENTERPRISES, L. PETER DEUTSCH, AND/OR OTHER PARTIES
-PROVIDE GHOSTSCRIPT "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
-EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE
-ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF GHOSTSCRIPT IS WITH
-YOU.  SHOULD GHOSTSCRIPT PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
-NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.
-STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., L. PETER DEUTSCH, ALADDIN
-ENTERPRISES, AND/OR ANY OTHER PARTY WHO MAY MODIFY AND REDISTRIBUTE
-GHOSTSCRIPT AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
-ANY LOST PROFITS, LOST MONIES, OR OTHER SPECIAL, INCIDENTAL OR
-CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
-(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
-INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR A FAILURE OF THE
-PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) GHOSTSCRIPT, EVEN IF YOU
-HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM
-BY ANY OTHER PARTY.
-
--------------------- End of file COPYING ------------------------------
-*/
-
-
-#include <stdio.h>
-#include <ctype.h>
-
-#ifdef BSD
-#include <strings.h>
-#else
-#ifdef VMS
-	extern int strlen(), strncmp();
-#else
-#include <string.h>
-#endif
-#endif
-
-/* malloc and free should be declared in stdlib.h, */
-/* but if you've got a K&R compiler, they probably aren't. */
-#ifdef MSDOS
-#include <malloc.h>
-#else
-#ifdef VMS
-     extern char *malloc();
-     extern void free();
-#else
-     extern char *malloc();
-     extern int free();
-#endif
-#endif
-
-/* Usage:
-	ansi2knr input_file [output_file]
- * If no output_file is supplied, output goes to stdout.
- * There are no error messages.
- *
- * ansi2knr recognizes functions by seeing a non-keyword identifier
- * at the left margin, followed by a left parenthesis,
- * with a right parenthesis as the last character on the line.
- * It will recognize a multi-line header provided that the last character
- * of the last line of the header is a right parenthesis,
- * and no intervening line ends with a left brace or a semicolon.
- * These algorithms ignore whitespace and comments, except that
- * the function name must be the first thing on the line.
- * The following constructs will confuse it:
- *	- Any other construct that starts at the left margin and
- *	    follows the above syntax (such as a macro or function call).
- *	- Macros that tinker with the syntax of the function header.
- */
-
-/* Scanning macros */
-#define isidchar(ch) (isalnum(ch) || (ch) == '_')
-#define isidfirstchar(ch) (isalpha(ch) || (ch) == '_')
-
-/* Forward references */
-char *skipspace();
-int writeblanks();
-int test1();
-int convert1();
-
-/* The main program */
-main(argc, argv)
-    int argc;
-    char *argv[];
-{	FILE *in, *out;
-#define bufsize 5000			/* arbitrary size */
-	char *buf;
-	char *line;
-	switch ( argc )
-	   {
-	default:
-		printf("Usage: ansi2knr input_file [output_file]\n");
-		exit(0);
-	case 2:
-		out = stdout; break;
-	case 3:
-		out = fopen(argv[2], "w");
-		if ( out == NULL )
-		   {	fprintf(stderr, "Cannot open %s\n", argv[2]);
-			exit(1);
-		   }
-	   }
-	in = fopen(argv[1], "r");
-	if ( in == NULL )
-	   {	fprintf(stderr, "Cannot open %s\n", argv[1]);
-		exit(1);
-	   }
-	fprintf(out, "#line 1 \"%s\"\n", argv[1]);
-	buf = malloc(bufsize);
-	line = buf;
-	while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL )
-	   {	switch ( test1(buf) )
-		   {
-		case 1:			/* a function */
-			convert1(buf, out);
-			break;
-		case -1:		/* maybe the start of a function */
-			line = buf + strlen(buf);
-			if ( line != buf + (bufsize - 1) ) /* overflow check */
-				continue;
-			/* falls through */
-		default:		/* not a function */
-			fputs(buf, out);
-			break;
-		   }
-		line = buf;
-	   }
-	if ( line != buf ) fputs(buf, out);
-	free(buf);
-	fclose(out);
-	fclose(in);
-	return 0;
-}
-
-/* Skip over space and comments, in either direction. */
-char *
-skipspace(p, dir)
-    register char *p;
-    register int dir;			/* 1 for forward, -1 for backward */
-{	for ( ; ; )
-	   {	while ( isspace(*p) ) p += dir;
-		if ( !(*p == '/' && p[dir] == '*') ) break;
-		p += dir;  p += dir;
-		while ( !(*p == '*' && p[dir] == '/') )
-		   {	if ( *p == 0 ) return p;	/* multi-line comment?? */
-			p += dir;
-		   }
-		p += dir;  p += dir;
-	   }
-	return p;
-}
-
-/*
- * Write blanks over part of a string.
- */
-int
-writeblanks(start, end)
-    char *start;
-    char *end;
-{	char *p;
-	for ( p = start; p < end; p++ ) *p = ' ';
-	return 0;
-}
-
-/*
- * Test whether the string in buf is a function definition.
- * The string may contain and/or end with a newline.
- * Return as follows:
- *	0 - definitely not a function definition;
- *	1 - definitely a function definition;
- *	-1 - may be the beginning of a function definition,
- *		append another line and look again.
- */
-int
-test1(buf)
-    char *buf;
-{	register char *p = buf;
-	char *bend;
-	char *endfn;
-	int contin;
-	if ( !isidfirstchar(*p) )
-		return 0;		/* no name at left margin */
-	bend = skipspace(buf + strlen(buf) - 1, -1);
-	switch ( *bend )
-	   {
-	case ')': contin = 1; break;
-	case '{':
-	case ';': return 0;		/* not a function */
-	default: contin = -1;
-	   }
-	while ( isidchar(*p) ) p++;
-	endfn = p;
-	p = skipspace(p, 1);
-	if ( *p++ != '(' )
-		return 0;		/* not a function */
-	p = skipspace(p, 1);
-	if ( *p == ')' )
-		return 0;		/* no parameters */
-	/* Check that the apparent function name isn't a keyword. */
-	/* We only need to check for keywords that could be followed */
-	/* by a left parenthesis (which, unfortunately, is most of them). */
-	   {	static char *words[] =
-		   {	"asm", "auto", "case", "char", "const", "double",
-			"extern", "float", "for", "if", "int", "long",
-			"register", "return", "short", "signed", "sizeof",
-			"static", "switch", "typedef", "unsigned",
-			"void", "volatile", "while", 0
-		   };
-		char **key = words;
-		char *kp;
-		int len = endfn - buf;
-		while ( (kp = *key) != 0 )
-		   {	if ( strlen(kp) == len && !strncmp(kp, buf, len) )
-				return 0;	/* name is a keyword */
-			key++;
-		   }
-	   }
-	return contin;
-}
-
-int
-convert1(buf, out)
-    char *buf;
-    FILE *out;
-{	char *endfn;
-	register char *p;
-	char **breaks;
-	unsigned num_breaks = 2;	/* for testing */
-	char **btop;
-	char **bp;
-	char **ap;
-	/* Pre-ANSI implementations don't agree on whether strchr */
-	/* is called strchr or index, so we open-code it here. */
-	for ( endfn = buf; *(endfn++) != '('; ) ;
-top:	p = endfn;
-	breaks = (char **)malloc(sizeof(char *) * num_breaks * 2);
-	if ( breaks == 0 )
-	   {	/* Couldn't allocate break table, give up */
-		fprintf(stderr, "Unable to allocate break table!\n");
-		fputs(buf, out);
-		return -1;
-	   }
-	btop = breaks + num_breaks * 2 - 2;
-	bp = breaks;
-	/* Parse the argument list */
-	do
-	   {	int level = 0;
-		char *end = NULL;
-		if ( bp >= btop )
-		   {	/* Filled up break table. */
-			/* Allocate a bigger one and start over. */
-			free((char *)breaks);
-			num_breaks <<= 1;
-			goto top;
-		   }
-		*bp++ = p;
-		/* Find the end of the argument */
-		for ( ; end == NULL; p++ )
-		   {	switch(*p)
-			   {
-			case ',': if ( !level ) end = p; break;
-			case '(': level++; break;
-			case ')': if ( --level < 0 ) end = p; break;
-			case '/': p = skipspace(p, 1) - 1; break;
-			default: ;
-			   }
-		   }
-		p--;			/* back up over terminator */
-		/* Find the name being declared. */
-		/* This is complicated because of procedure and */
-		/* array modifiers. */
-		for ( ; ; )
-		   {	p = skipspace(p - 1, -1);
-			switch ( *p )
-			   {
-			case ']':	/* skip array dimension(s) */
-			case ')':	/* skip procedure args OR name */
-			   {	int level = 1;
-				while ( level )
-				 switch ( *--p )
-				   {
-				case ']': case ')': level++; break;
-				case '[': case '(': level--; break;
-				case '/': p = skipspace(p, -1) + 1; break;
-				default: ;
-				   }
-			   }
-				if ( *p == '(' && *skipspace(p + 1, 1) == '*' )
-				   {	/* We found the name being declared */
-					while ( !isidfirstchar(*p) )
-						p = skipspace(p, 1) + 1;
-					goto found;
-				   }
-				break;
-			default: goto found;
-			   }
-		   }
-found:		if ( *p == '.' && p[-1] == '.' && p[-2] == '.' )
-		   {	p++;
-			if ( bp == breaks + 1 )	/* sole argument */
-				writeblanks(breaks[0], p);
-			else
-				writeblanks(bp[-1] - 1, p);
-			bp--;
-		   }
-		else
-		   {	while ( isidchar(*p) ) p--;
-			*bp++ = p+1;
-		   }
-		p = end;
-	   }
-	while ( *p++ == ',' );
-	*bp = p;
-	/* Make a special check for 'void' arglist */
-	if ( bp == breaks+2 )
-	   {	p = skipspace(breaks[0], 1);
-		if ( !strncmp(p, "void", 4) )
-		   {	p = skipspace(p+4, 1);
-			if ( p == breaks[2] - 1 )
-			   {	bp = breaks;	/* yup, pretend arglist is empty */
-				writeblanks(breaks[0], p + 1);
-			   }
-		   }
-	   }
-	/* Put out the function name */
-	p = buf;
-	while ( p != endfn ) putc(*p, out), p++;
-	/* Put out the declaration */
-	for ( ap = breaks+1; ap < bp; ap += 2 )
-	   {	p = *ap;
-		while ( isidchar(*p) ) putc(*p, out), p++;
-		if ( ap < bp - 1 ) fputs(", ", out);
-	   }
-	fputs(")  ", out);
-	/* Put out the argument declarations */
-	for ( ap = breaks+2; ap <= bp; ap += 2 ) (*ap)[-1] = ';';
-	fputs(breaks[0], out);
-	free((char *)breaks);
-	return 0;
-}

bmp.c

@@ -0,0 +1,334 @@
+/*
+ * Copyright (C)2011, 2015 D. R. Commander.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * - Neither the name of the libjpeg-turbo Project nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <setjmp.h>
+#include <errno.h>
+#include "cdjpeg.h"
+#include <jpeglib.h>
+#include <jpegint.h>
+#include "tjutil.h"
+#include "bmp.h"
+
+
+/* This duplicates the functionality of the VirtualGL bitmap library using
+   the components from cjpeg and djpeg */
+
+
+/* Error handling (based on example in example.c) */
+
+static char errStr[JMSG_LENGTH_MAX]="No error";
+
+struct my_error_mgr
+{
+	struct jpeg_error_mgr pub;
+	jmp_buf setjmp_buffer;
+};
+typedef struct my_error_mgr *my_error_ptr;
+
+static void my_error_exit(j_common_ptr cinfo)
+{
+	my_error_ptr myerr=(my_error_ptr)cinfo->err;
+	(*cinfo->err->output_message)(cinfo);
+	longjmp(myerr->setjmp_buffer, 1);
+}
+
+/* Based on output_message() in jerror.c */
+
+static void my_output_message(j_common_ptr cinfo)
+{
+	(*cinfo->err->format_message)(cinfo, errStr);
+}
+
+#define _throw(m) {snprintf(errStr, JMSG_LENGTH_MAX, "%s", m);  \
+	retval=-1;  goto bailout;}
+#define _throwunix(m) {snprintf(errStr, JMSG_LENGTH_MAX, "%s\n%s", m,  \
+	strerror(errno));  retval=-1;  goto bailout;}
+
+
+static void pixelconvert(unsigned char *srcbuf, int srcpf, int srcbottomup,
+	unsigned char *dstbuf, int dstpf, int dstbottomup, int w, int h)
+{
+	unsigned char *srcrowptr=srcbuf, *srccolptr;
+	int srcps=tjPixelSize[srcpf];
+	int srcstride=srcbottomup? -w*srcps:w*srcps;
+	unsigned char *dstrowptr=dstbuf, *dstcolptr;
+	int dstps=tjPixelSize[dstpf];
+	int dststride=dstbottomup? -w*dstps:w*dstps;
+	int row, col;
+
+	if(srcbottomup) srcrowptr=&srcbuf[w*srcps*(h-1)];
+	if(dstbottomup) dstrowptr=&dstbuf[w*dstps*(h-1)];
+
+	/* NOTE: These quick & dirty CMYK<->RGB conversion routines are for testing
+	   purposes only.  Properly converting between CMYK and RGB requires a color
+	   management system. */
+
+	if(dstpf==TJPF_CMYK)
+	{
+		for(row=0; row<h; row++, srcrowptr+=srcstride, dstrowptr+=dststride)
+		{
+			for(col=0, srccolptr=srcrowptr, dstcolptr=dstrowptr;
+				col<w; col++, srccolptr+=srcps)
+			{
+				double c=1.0-((double)(srccolptr[tjRedOffset[srcpf]])/255.);
+				double m=1.0-((double)(srccolptr[tjGreenOffset[srcpf]])/255.);
+				double y=1.0-((double)(srccolptr[tjBlueOffset[srcpf]])/255.);
+				double k=min(min(c,m),min(y,1.0));
+				if(k==1.0) c=m=y=0.0;
+				else
+				{
+					c=(c-k)/(1.0-k);
+					m=(m-k)/(1.0-k);
+					y=(y-k)/(1.0-k);
+				}
+				if(c>1.0) c=1.0;  if(c<0.) c=0.;
+				if(m>1.0) m=1.0;  if(m<0.) m=0.;
+				if(y>1.0) y=1.0;  if(y<0.) y=0.;
+				if(k>1.0) k=1.0;  if(k<0.) k=0.;
+				*dstcolptr++=(unsigned char)(255.0-c*255.0+0.5);
+				*dstcolptr++=(unsigned char)(255.0-m*255.0+0.5);
+				*dstcolptr++=(unsigned char)(255.0-y*255.0+0.5);
+				*dstcolptr++=(unsigned char)(255.0-k*255.0+0.5);
+			}
+		}
+	}
+	else if(srcpf==TJPF_CMYK)
+	{
+		for(row=0; row<h; row++, srcrowptr+=srcstride, dstrowptr+=dststride)
+		{
+			for(col=0, srccolptr=srcrowptr, dstcolptr=dstrowptr;
+				col<w; col++, dstcolptr+=dstps)
+			{
+				double c=(double)(*srccolptr++);
+				double m=(double)(*srccolptr++);
+				double y=(double)(*srccolptr++);
+				double k=(double)(*srccolptr++);
+				double r=c*k/255.;
+				double g=m*k/255.;
+				double b=y*k/255.;
+				if(r>255.0) r=255.0;  if(r<0.) r=0.;
+				if(g>255.0) g=255.0;  if(g<0.) g=0.;
+				if(b>255.0) b=255.0;  if(b<0.) b=0.;
+				dstcolptr[tjRedOffset[dstpf]]=(unsigned char)(r+0.5);
+				dstcolptr[tjGreenOffset[dstpf]]=(unsigned char)(g+0.5);
+				dstcolptr[tjBlueOffset[dstpf]]=(unsigned char)(b+0.5);
+			}
+		}
+	}
+	else
+	{
+		for(row=0; row<h; row++, srcrowptr+=srcstride, dstrowptr+=dststride)
+		{
+			for(col=0, srccolptr=srcrowptr, dstcolptr=dstrowptr;
+				col<w; col++, srccolptr+=srcps, dstcolptr+=dstps)
+			{
+				dstcolptr[tjRedOffset[dstpf]]=srccolptr[tjRedOffset[srcpf]];
+				dstcolptr[tjGreenOffset[dstpf]]=srccolptr[tjGreenOffset[srcpf]];
+				dstcolptr[tjBlueOffset[dstpf]]=srccolptr[tjBlueOffset[srcpf]];
+			}
+		}
+	}
+}
+
+
+int loadbmp(char *filename, unsigned char **buf, int *w, int *h,
+	int dstpf, int bottomup)
+{
+	int retval=0, dstps, srcpf, tempc;
+	struct jpeg_compress_struct cinfo;
+	struct my_error_mgr jerr;
+	cjpeg_source_ptr src;
+	FILE *file=NULL;
+
+	memset(&cinfo, 0, sizeof(struct jpeg_compress_struct));
+
+	if(!filename || !buf || !w || !h || dstpf<0 || dstpf>=TJ_NUMPF)
+		_throw("loadbmp(): Invalid argument");
+
+	if((file=fopen(filename, "rb"))==NULL)
+		_throwunix("loadbmp(): Cannot open input file");
+
+	cinfo.err=jpeg_std_error(&jerr.pub);
+	jerr.pub.error_exit=my_error_exit;
+	jerr.pub.output_message=my_output_message;
+
+	if(setjmp(jerr.setjmp_buffer))
+	{
+		/* If we get here, the JPEG code has signaled an error. */
+		retval=-1;  goto bailout;
+	}
+
+	jpeg_create_compress(&cinfo);
+	if((tempc=getc(file))<0 || ungetc(tempc, file)==EOF)
+		_throwunix("loadbmp(): Could not read input file")
+	else if(tempc==EOF) _throw("loadbmp(): Input file contains no data");
+
+	if(tempc=='B')
+	{
+		if((src=jinit_read_bmp(&cinfo))==NULL)
+			_throw("loadbmp(): Could not initialize bitmap loader");
+	}
+	else if(tempc=='P')
+	{
+		if((src=jinit_read_ppm(&cinfo))==NULL)
+			_throw("loadbmp(): Could not initialize bitmap loader");
+	}
+	else _throw("loadbmp(): Unsupported file type");
+
+	src->input_file=file;
+	(*src->start_input)(&cinfo, src);
+	(*cinfo.mem->realize_virt_arrays)((j_common_ptr)&cinfo);
+
+	*w=cinfo.image_width;  *h=cinfo.image_height;
+
+	if(cinfo.input_components==1 && cinfo.in_color_space==JCS_RGB)
+		srcpf=TJPF_GRAY;
+	else srcpf=TJPF_RGB;
+
+	dstps=tjPixelSize[dstpf];
+	if((*buf=(unsigned char *)malloc((*w)*(*h)*dstps))==NULL)
+		_throw("loadbmp(): Memory allocation failure");
+
+	while(cinfo.next_scanline<cinfo.image_height)
+	{
+		int i, nlines=(*src->get_pixel_rows)(&cinfo, src);
+		for(i=0; i<nlines; i++)
+		{
+			unsigned char *outbuf;  int row;
+			row=cinfo.next_scanline+i;
+			if(bottomup) outbuf=&(*buf)[((*h)-row-1)*(*w)*dstps];
+			else outbuf=&(*buf)[row*(*w)*dstps];
+			pixelconvert(src->buffer[i], srcpf, 0, outbuf, dstpf, bottomup, *w,
+				nlines);
+		}
+		cinfo.next_scanline+=nlines;
+	}
+
+	(*src->finish_input)(&cinfo, src);
+
+	bailout:
+	jpeg_destroy_compress(&cinfo);
+	if(file) fclose(file);
+	if(retval<0 && buf && *buf) {free(*buf);  *buf=NULL;}
+	return retval;
+}
+
+
+int savebmp(char *filename, unsigned char *buf, int w, int h, int srcpf,
+	int bottomup)
+{
+	int retval=0, srcps, dstpf;
+	struct jpeg_decompress_struct dinfo;
+	struct my_error_mgr jerr;
+	djpeg_dest_ptr dst;
+	FILE *file=NULL;
+	char *ptr=NULL;
+
+	memset(&dinfo, 0, sizeof(struct jpeg_decompress_struct));
+
+	if(!filename || !buf || w<1 || h<1 || srcpf<0 || srcpf>=TJ_NUMPF)
+		_throw("savebmp(): Invalid argument");
+
+	if((file=fopen(filename, "wb"))==NULL)
+		_throwunix("savebmp(): Cannot open output file");
+
+	dinfo.err=jpeg_std_error(&jerr.pub);
+	jerr.pub.error_exit=my_error_exit;
+	jerr.pub.output_message=my_output_message;
+
+	if(setjmp(jerr.setjmp_buffer))
+	{
+		/* If we get here, the JPEG code has signaled an error. */
+		retval=-1;  goto bailout;
+	}
+
+	jpeg_create_decompress(&dinfo);
+	if(srcpf==TJPF_GRAY)
+	{
+		dinfo.out_color_components=dinfo.output_components=1;
+		dinfo.out_color_space=JCS_GRAYSCALE;
+	}
+	else
+	{
+		dinfo.out_color_components=dinfo.output_components=3;
+		dinfo.out_color_space=JCS_RGB;
+	}
+	dinfo.image_width=w;  dinfo.image_height=h;
+	dinfo.global_state=DSTATE_READY;
+	dinfo.scale_num=dinfo.scale_denom=1;
+
+	ptr=strrchr(filename, '.');
+	if(ptr && !strcasecmp(ptr, ".bmp"))
+	{
+		if((dst=jinit_write_bmp(&dinfo, 0))==NULL)
+			_throw("savebmp(): Could not initialize bitmap writer");
+	}
+	else
+	{
+		if((dst=jinit_write_ppm(&dinfo))==NULL)
+			_throw("savebmp(): Could not initialize PPM writer");
+	}
+
+	dst->output_file=file;
+	(*dst->start_output)(&dinfo, dst);
+	(*dinfo.mem->realize_virt_arrays)((j_common_ptr)&dinfo);
+
+	if(srcpf==TJPF_GRAY) dstpf=srcpf;
+	else dstpf=TJPF_RGB;
+	srcps=tjPixelSize[srcpf];
+
+	while(dinfo.output_scanline<dinfo.output_height)
+	{
+		int i, nlines=dst->buffer_height;
+		for(i=0; i<nlines; i++)
+		{
+			unsigned char *inbuf;  int row;
+			row=dinfo.output_scanline+i;
+			if(bottomup) inbuf=&buf[(h-row-1)*w*srcps];
+			else inbuf=&buf[row*w*srcps];
+			pixelconvert(inbuf, srcpf, bottomup, dst->buffer[i], dstpf, 0, w,
+				nlines);
+		}
+		(*dst->put_pixel_rows)(&dinfo, dst, nlines);
+		dinfo.output_scanline+=nlines;
+	}
+
+	(*dst->finish_output)(&dinfo, dst);
+
+	bailout:
+	jpeg_destroy_decompress(&dinfo);
+	if(file) fclose(file);
+	return retval;
+}
+
+const char *bmpgeterr(void)
+{
+	return errStr;
+}

bmp.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C)2011 D. R. Commander.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * - Neither the name of the libjpeg-turbo Project nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __BMP_H__
+#define __BMP_H__
+
+#include "./turbojpeg.h"
+
+int loadbmp(char *filename, unsigned char **buf, int *w, int *h, int pf,
+	int bottomup);
+
+int savebmp(char *filename, unsigned char *buf, int w, int h, int pf,
+	int bottomup);
+
+const char *bmpgeterr(void);
+
+#endif

cderror.h

@@ -1,7 +1,8 @@
 /*
  * cderror.h
  *
- * Copyright (C) 1994, Thomas G. Lane.
+ * 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.
  *
@@ -32,7 +33,7 @@
 
 typedef enum {
 
-#define JMESSAGE(code,string)	code ,
+#define JMESSAGE(code,string)   code ,
 
 #endif /* JMAKE_ENUM_LIST */
 
@@ -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")
@@ -60,7 +62,7 @@ JMESSAGE(JERR_GIF_IMAGENOTFOUND, "Too few images in GIF file")
 JMESSAGE(JERR_GIF_NOT, "Not a GIF file")
 JMESSAGE(JTRC_GIF, "%ux%ux%d GIF image")
 JMESSAGE(JTRC_GIF_BADVERSION,
-	 "Warning: unexpected GIF version number '%c%c%c'")
+         "Warning: unexpected GIF version number '%c%c%c'")
 JMESSAGE(JTRC_GIF_EXTENSION, "Ignoring GIF extension block of type 0x%02x")
 JMESSAGE(JTRC_GIF_NONSQUARE, "Caution: nonsquare pixels in input")
 JMESSAGE(JWRN_GIF_BADDATA, "Corrupt data in GIF file")
@@ -72,7 +74,7 @@ JMESSAGE(JWRN_GIF_NOMOREDATA, "Ran out of GIF bits")
 #ifdef PPM_SUPPORTED
 JMESSAGE(JERR_PPM_COLORSPACE, "PPM output must be grayscale or RGB")
 JMESSAGE(JERR_PPM_NONNUMERIC, "Nonnumeric data in PPM file")
-JMESSAGE(JERR_PPM_NOT, "Not a PPM file")
+JMESSAGE(JERR_PPM_NOT, "Not a PPM/PGM file")
 JMESSAGE(JTRC_PGM, "%ux%u PGM image")
 JMESSAGE(JTRC_PGM_TEXT, "%ux%u text PGM image")
 JMESSAGE(JTRC_PPM, "%ux%u PPM image")
@@ -108,13 +110,13 @@ JMESSAGE(JERR_TGA_NOTCOMP, "Targa support was not compiled")
 #endif /* TARGA_SUPPORTED */
 
 JMESSAGE(JERR_BAD_CMAP_FILE,
-	 "Color map file is invalid or of unsupported format")
+         "Color map file is invalid or of unsupported format")
 JMESSAGE(JERR_TOO_MANY_COLORS,
-	 "Output file format cannot handle %d colormap entries")
+         "Output file format cannot handle %d colormap entries")
 JMESSAGE(JERR_UNGETC_FAILED, "ungetc failed")
 #ifdef TARGA_SUPPORTED
 JMESSAGE(JERR_UNKNOWN_FORMAT,
-	 "Unrecognized input file format --- perhaps you need -targa")
+         "Unrecognized input file format --- perhaps you need -targa")
 #else
 JMESSAGE(JERR_UNKNOWN_FORMAT, "Unrecognized input file format")
 #endif

cdjpeg.c

@@ -0,0 +1,143 @@
+/*
+ * cdjpeg.c
+ *
+ * This file was part of the Independent JPEG Group's software:
+ * Copyright (C) 1991-1997, Thomas G. Lane.
+ * It was modified by The libjpeg-turbo Project to include only code relevant
+ * to libjpeg-turbo.
+ * For conditions of distribution and use, see the accompanying README file.
+ *
+ * This file contains common support routines used by the IJG application
+ * programs (cjpeg, djpeg, jpegtran).
+ */
+
+#include "cdjpeg.h"             /* Common decls for cjpeg/djpeg applications */
+#include <ctype.h>              /* to declare isupper(), tolower() */
+#ifdef USE_SETMODE
+#include <fcntl.h>              /* to declare setmode()'s parameter macros */
+/* If you have setmode() but not <io.h>, just delete this line: */
+#include <io.h>                 /* to declare setmode() */
+#endif
+
+
+/*
+ * Optional progress monitor: display a percent-done figure on stderr.
+ */
+
+#ifdef PROGRESS_REPORT
+
+METHODDEF(void)
+progress_monitor (j_common_ptr cinfo)
+{
+  cd_progress_ptr prog = (cd_progress_ptr) cinfo->progress;
+  int total_passes = prog->pub.total_passes + prog->total_extra_passes;
+  int percent_done = (int) (prog->pub.pass_counter*100L/prog->pub.pass_limit);
+
+  if (percent_done != prog->percent_done) {
+    prog->percent_done = percent_done;
+    if (total_passes > 1) {
+      fprintf(stderr, "\rPass %d/%d: %3d%% ",
+              prog->pub.completed_passes + prog->completed_extra_passes + 1,
+              total_passes, percent_done);
+    } else {
+      fprintf(stderr, "\r %3d%% ", percent_done);
+    }
+    fflush(stderr);
+  }
+}
+
+
+GLOBAL(void)
+start_progress_monitor (j_common_ptr cinfo, cd_progress_ptr progress)
+{
+  /* Enable progress display, unless trace output is on */
+  if (cinfo->err->trace_level == 0) {
+    progress->pub.progress_monitor = progress_monitor;
+    progress->completed_extra_passes = 0;
+    progress->total_extra_passes = 0;
+    progress->percent_done = -1;
+    cinfo->progress = &progress->pub;
+  }
+}
+
+
+GLOBAL(void)
+end_progress_monitor (j_common_ptr cinfo)
+{
+  /* Clear away progress display */
+  if (cinfo->err->trace_level == 0) {
+    fprintf(stderr, "\r                \r");
+    fflush(stderr);
+  }
+}
+
+#endif
+
+
+/*
+ * Case-insensitive matching of possibly-abbreviated keyword switches.
+ * keyword is the constant keyword (must be lower case already),
+ * minchars is length of minimum legal abbreviation.
+ */
+
+GLOBAL(boolean)
+keymatch (char * arg, const char * keyword, int minchars)
+{
+  register int ca, ck;
+  register int nmatched = 0;
+
+  while ((ca = *arg++) != '\0') {
+    if ((ck = *keyword++) == '\0')
+      return FALSE;             /* arg longer than keyword, no good */
+    if (isupper(ca))            /* force arg to lcase (assume ck is already) */
+      ca = tolower(ca);
+    if (ca != ck)
+      return FALSE;             /* no good */
+    nmatched++;                 /* count matched characters */
+  }
+  /* reached end of argument; fail if it's too short for unique abbrev */
+  if (nmatched < minchars)
+    return FALSE;
+  return TRUE;                  /* A-OK */
+}
+
+
+/*
+ * Routines to establish binary I/O mode for stdin and stdout.
+ * Non-Unix systems often require some hacking to get out of text mode.
+ */
+
+GLOBAL(FILE *)
+read_stdin (void)
+{
+  FILE * input_file = stdin;
+
+#ifdef USE_SETMODE              /* need to hack file mode? */
+  setmode(fileno(stdin), O_BINARY);
+#endif
+#ifdef USE_FDOPEN               /* need to re-open in binary mode? */
+  if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) {
+    fprintf(stderr, "Cannot reopen stdin\n");
+    exit(EXIT_FAILURE);
+  }
+#endif
+  return input_file;
+}
+
+
+GLOBAL(FILE *)
+write_stdout (void)
+{
+  FILE * output_file = stdout;
+
+#ifdef USE_SETMODE              /* need to hack file mode? */
+  setmode(fileno(stdout), O_BINARY);
+#endif
+#ifdef USE_FDOPEN               /* need to re-open in binary mode? */
+  if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) {
+    fprintf(stderr, "Cannot reopen stdout\n");
+    exit(EXIT_FAILURE);
+  }
+#endif
+  return output_file;
+}

cdjpeg.h

@@ -1,20 +1,22 @@
 /*
  * cdjpeg.h
  *
- * Copyright (C) 1994, Thomas G. Lane.
+ * This file was part of the Independent JPEG Group's software:
- * This file is part of the Independent JPEG Group's software.
+ * Copyright (C) 1994-1997, Thomas G. Lane.
+ * It was modified by The libjpeg-turbo Project to include only code relevant
+ * to libjpeg-turbo.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains common declarations for the sample applications
  * cjpeg and djpeg.  It is NOT used by the core JPEG library.
  */
 
-#define JPEG_CJPEG_DJPEG	/* define proper options in jconfig.h */
+#define JPEG_CJPEG_DJPEG        /* define proper options in jconfig.h */
-#define JPEG_INTERNAL_OPTIONS	/* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */
+#define JPEG_INTERNAL_OPTIONS   /* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */
 #include "jinclude.h"
 #include "jpeglib.h"
-#include "jerror.h"		/* get library error codes too */
+#include "jerror.h"             /* get library error codes too */
-#include "cderror.h"		/* get application-specific error codes */
+#include "cderror.h"            /* get application-specific error codes */
 
 
 /*
@@ -24,12 +26,9 @@
 typedef struct cjpeg_source_struct * cjpeg_source_ptr;
 
 struct cjpeg_source_struct {
-  JMETHOD(void, start_input, (j_compress_ptr cinfo,
+  void (*start_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
-			      cjpeg_source_ptr sinfo));
+  JDIMENSION (*get_pixel_rows) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
-  JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo,
+  void (*finish_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
-				       cjpeg_source_ptr sinfo));
-  JMETHOD(void, finish_input, (j_compress_ptr cinfo,
-			       cjpeg_source_ptr sinfo));
 
   FILE *input_file;
 
@@ -48,15 +47,12 @@ struct djpeg_dest_struct {
   /* start_output is called after jpeg_start_decompress finishes.
    * The color map will be ready at this time, if one is needed.
    */
-  JMETHOD(void, start_output, (j_decompress_ptr cinfo,
+  void (*start_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
-			       djpeg_dest_ptr dinfo));
   /* Emit the specified number of pixel rows from the buffer. */
-  JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo,
+  void (*put_pixel_rows) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
-				 djpeg_dest_ptr dinfo,
+                          JDIMENSION rows_supplied);
-				 JDIMENSION rows_supplied));
   /* Finish up at the end of the image. */
-  JMETHOD(void, finish_output, (j_decompress_ptr cinfo,
+  void (*finish_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
-				djpeg_dest_ptr dinfo));
 
   /* Target file spec; filled in by djpeg.c after object is created. */
   FILE * output_file;
@@ -79,9 +75,9 @@ struct djpeg_dest_struct {
  */
 
 struct cdjpeg_progress_mgr {
-  struct jpeg_progress_mgr pub;	/* fields known to JPEG library */
+  struct jpeg_progress_mgr pub; /* fields known to JPEG library */
-  int completed_extra_passes;	/* extra passes completed */
+  int completed_extra_passes;   /* extra passes completed */
-  int total_extra_passes;	/* total extra */
+  int total_extra_passes;       /* total extra */
   /* last printed percentage stored here to avoid multiple printouts */
   int percent_done;
 };
@@ -89,36 +85,60 @@ struct cdjpeg_progress_mgr {
 typedef struct cdjpeg_progress_mgr * cd_progress_ptr;
 
 
-/* Short forms of external names for systems with brain-damaged linkers. */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jinit_read_bmp		jIRdBMP
-#define jinit_write_bmp		jIWrBMP
-#define jinit_read_gif		jIRdGIF
-#define jinit_write_gif		jIWrGIF
-#define jinit_read_ppm		jIRdPPM
-#define jinit_write_ppm		jIWrPPM
-#define jinit_read_rle		jIRdRLE
-#define jinit_write_rle		jIWrRLE
-#define jinit_read_targa	jIRdTarga
-#define jinit_write_targa	jIWrTarga
-#define read_color_map		RdCMap
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
 /* Module selection routines for I/O modules. */
 
-EXTERN cjpeg_source_ptr jinit_read_bmp JPP((j_compress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_bmp (j_compress_ptr cinfo);
-EXTERN djpeg_dest_ptr jinit_write_bmp JPP((j_decompress_ptr cinfo,
+EXTERN(djpeg_dest_ptr) jinit_write_bmp (j_decompress_ptr cinfo,
-					   boolean is_os2));
+                                        boolean is_os2);
-EXTERN cjpeg_source_ptr jinit_read_gif JPP((j_compress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_gif (j_compress_ptr cinfo);
-EXTERN djpeg_dest_ptr jinit_write_gif JPP((j_decompress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_gif (j_decompress_ptr cinfo);
-EXTERN cjpeg_source_ptr jinit_read_ppm JPP((j_compress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_ppm (j_compress_ptr cinfo);
-EXTERN djpeg_dest_ptr jinit_write_ppm JPP((j_decompress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_ppm (j_decompress_ptr cinfo);
-EXTERN cjpeg_source_ptr jinit_read_rle JPP((j_compress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_rle (j_compress_ptr cinfo);
-EXTERN djpeg_dest_ptr jinit_write_rle JPP((j_decompress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_rle (j_decompress_ptr cinfo);
-EXTERN cjpeg_source_ptr jinit_read_targa JPP((j_compress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_targa (j_compress_ptr cinfo);
-EXTERN djpeg_dest_ptr jinit_write_targa JPP((j_decompress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_targa (j_decompress_ptr cinfo);
 
-/* Other global routines */
+/* cjpeg support routines (in rdswitch.c) */
 
-EXTERN void read_color_map JPP((j_decompress_ptr cinfo, FILE * infile));
+EXTERN(boolean) read_quant_tables (j_compress_ptr cinfo, char * filename,
+                                   boolean force_baseline);
+EXTERN(boolean) read_scan_script (j_compress_ptr cinfo, char * filename);
+EXTERN(boolean) set_quality_ratings (j_compress_ptr cinfo, char *arg,
+                                     boolean force_baseline);
+EXTERN(boolean) set_quant_slots (j_compress_ptr cinfo, char *arg);
+EXTERN(boolean) set_sample_factors (j_compress_ptr cinfo, char *arg);
+
+/* djpeg support routines (in rdcolmap.c) */
+
+EXTERN(void) read_color_map (j_decompress_ptr cinfo, FILE * infile);
+
+/* common support routines (in cdjpeg.c) */
+
+EXTERN(void) enable_signal_catcher (j_common_ptr cinfo);
+EXTERN(void) start_progress_monitor (j_common_ptr cinfo,
+                                     cd_progress_ptr progress);
+EXTERN(void) end_progress_monitor (j_common_ptr cinfo);
+EXTERN(boolean) keymatch (char * arg, const char * keyword, int minchars);
+EXTERN(FILE *) read_stdin (void);
+EXTERN(FILE *) write_stdout (void);
+
+/* miscellaneous useful macros */
+
+#ifdef DONT_USE_B_MODE          /* define mode parameters for fopen() */
+#define READ_BINARY     "r"
+#define WRITE_BINARY    "w"
+#else
+#define READ_BINARY     "rb"
+#define WRITE_BINARY    "wb"
+#endif
+
+#ifndef EXIT_FAILURE            /* define exit() codes if not provided */
+#define EXIT_FAILURE  1
+#endif
+#ifndef EXIT_SUCCESS
+#define EXIT_SUCCESS  0
+#endif
+#ifndef EXIT_WARNING
+#define EXIT_WARNING  2
+#endif

change.log

@@ -1,6 +1,218 @@
+NOTE:  This file was modified by The libjpeg-turbo Project to include only
+information relevant to libjpeg-turbo.
+
 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.
+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.
+
+
+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.
+
+
+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.
+
+
+Version 8  10-Jan-2010
+----------------------
+
+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
+----------------------
+
+New scaled DCTs implemented.
+djpeg now supports scalings N/8 with all N from 1 to 16.
+
+cjpeg -quality option has been extended for support of separate quality
+settings for luminance and chrominance (or in general, for every provided
+quantization table slot).
+New API function jpeg_default_qtables() and q_scale_factor array in library.
+
+Support arithmetic entropy encoding and decoding.
+Added files jaricom.c, jcarith.c, jdarith.c.
+
+jpegtran has a new "lossless" cropping feature.
+
+Implement -perfect option in jpegtran, new API function
+jtransform_perfect_transform() in transupp. (DP 204_perfect.dpatch)
+
+Better error messages for jpegtran fopen failure.
+(DP 203_jpegtran_errmsg.dpatch)
+
+Fix byte order issue with 16bit PPM/PGM files in rdppm.c/wrppm.c:
+according to Netpbm, the de facto standard implementation of the PNM formats,
+the most significant byte is first. (DP 203_rdppm.dpatch)
+
+Add -raw option to rdjpgcom not to mangle the output.
+(DP 205_rdjpgcom_raw.dpatch)
+
+Make rdjpgcom locale aware. (DP 201_rdjpgcom_locale.dpatch)
+
+Add extern "C" to jpeglib.h.
+This avoids the need to put extern "C" { ... } around #include "jpeglib.h"
+in your C++ application.  Defining the symbol DONT_USE_EXTERN_C in the
+configuration prevents this. (DP 202_jpeglib.h_c++.dpatch)
+
+
+Version 6b  27-Mar-1998
+-----------------------
+
+jpegtran has new features for lossless image transformations (rotation
+and flipping) as well as "lossless" reduction to grayscale.
+
+jpegtran now copies comments by default; it has a -copy switch to enable
+copying all APPn blocks as well, or to suppress comments.  (Formerly it
+always suppressed comments and APPn blocks.)  jpegtran now also preserves
+JFIF version and resolution information.
+
+New decompressor library feature: COM and APPn markers found in the input
+file can be saved in memory for later use by the application.  (Before,
+you had to code this up yourself with a custom marker processor.)
+
+There is an unused field "void * client_data" now in compress and decompress
+parameter structs; this may be useful in some applications.
+
+JFIF version number information is now saved by the decoder and accepted by
+the encoder.  jpegtran uses this to copy the source file's version number,
+to ensure "jpegtran -copy all" won't create bogus files that contain JFXX
+extensions but claim to be version 1.01.  Applications that generate their
+own JFXX extension markers also (finally) have a supported way to cause the
+encoder to emit JFIF version number 1.02.
+
+djpeg's trace mode reports JFIF 1.02 thumbnail images as such, rather
+than as unknown APP0 markers.
+
+In -verbose mode, djpeg and rdjpgcom will try to print the contents of
+APP12 markers as text.  Some digital cameras store useful text information
+in APP12 markers.
+
+Handling of truncated data streams is more robust: blocks beyond the one in
+which the error occurs will be output as uniform gray, or left unchanged
+if decoding a progressive JPEG.  The appearance no longer depends on the
+Huffman tables being used.
+
+Huffman tables are checked for validity much more carefully than before.
+
+To avoid the Unisys LZW patent, djpeg's GIF output capability has been
+changed to produce "uncompressed GIFs", and cjpeg's GIF input capability
+has been removed altogether.  We're not happy about it either, but there
+seems to be no good alternative.
+
+The configure script now supports building libjpeg as a shared library
+on many flavors of Unix (all the ones that GNU libtool knows how to
+build shared libraries for).  Use "./configure --enable-shared" to
+try this out.
+
+New jconfig file and makefiles for Microsoft Visual C++ and Developer Studio.
+Also, a jconfig file and a build script for Metrowerks CodeWarrior
+on Apple Macintosh.  makefile.dj has been updated for DJGPP v2, and there
+are miscellaneous other minor improvements in the makefiles.
+
+jmemmac.c now knows how to create temporary files following Mac System 7
+conventions.
+
+djpeg's -map switch is now able to read raw-format PPM files reliably.
+
+cjpeg -progressive -restart no longer generates any unnecessary DRI markers.
+
+Multiple calls to jpeg_simple_progression for a single JPEG object
+no longer leak memory.
+
+
+Version 6a  7-Feb-96
+--------------------
+
+Library initialization sequence modified to detect version mismatches
+and struct field packing mismatches between library and calling application.
+This change requires applications to be recompiled, but does not require
+any application source code change.
+
+All routine declarations changed to the style "GLOBAL(type) name ...",
+that is, GLOBAL, LOCAL, METHODDEF, EXTERN are now macros taking the
+routine's return type as an argument.  This makes it possible to add
+Microsoft-style linkage keywords to all the routines by changing just
+these macros.  Note that any application code that was using these macros
+will have to be changed.
+
+DCT coefficient quantization tables are now stored in normal array order
+rather than zigzag order.  Application code that calls jpeg_add_quant_table,
+or otherwise manipulates quantization tables directly, will need to be
+changed.  If you need to make such code work with either older or newer
+versions of the library, a test like "#if JPEG_LIB_VERSION >= 61" is
+recommended.
+
+djpeg's trace capability now dumps DQT tables in natural order, not zigzag
+order.  This allows the trace output to be made into a "-qtables" file
+more easily.
+
+New system-dependent memory manager module for use on Apple Macintosh.
+
+Fix bug in cjpeg's -smooth option: last one or two scanlines would be
+duplicates of the prior line unless the image height mod 16 was 1 or 2.
+
+Repair minor problems in VMS, BCC, MC6 makefiles.
+
+New configure script based on latest GNU Autoconf.
+
+Correct the list of include files needed by MetroWerks C for ccommand().
+
+Numerous small documentation updates.
+
+
+Version 6  2-Aug-95
+-------------------
+
+Progressive JPEG support: library can read and write full progressive JPEG
+files.  A "buffered image" mode supports incremental decoding for on-the-fly
+display of progressive images.  Simply recompiling an existing IJG-v5-based
+decoder with v6 should allow it to read progressive files, though of course
+without any special progressive display.
+
+New "jpegtran" application performs lossless transcoding between different
+JPEG formats; primarily, it can be used to convert baseline to progressive
+JPEG and vice versa.  In support of jpegtran, the library now allows lossless
+reading and writing of JPEG files as DCT coefficient arrays.  This ability
+may be of use in other applications.
+
+Notes for programmers:
+* We changed jpeg_start_decompress() to be able to suspend; this makes all
+decoding modes available to suspending-input applications.  However,
+existing applications that use suspending input will need to be changed
+to check the return value from jpeg_start_decompress().  You don't need to
+do anything if you don't use a suspending data source.
+* We changed the interface to the virtual array routines: access_virt_array
+routines now take a count of the number of rows to access this time.  The
+last parameter to request_virt_array routines is now interpreted as the
+maximum number of rows that may be accessed at once, but not necessarily
+the height of every access.
+
+
 Version 5b  15-Mar-95
 ---------------------
 

cjpeg.1

@@ -1,4 +1,4 @@
-.TH CJPEG 1 "12 December 1994"
+.TH CJPEG 1 "21 November 2014"
 .SH NAME
 cjpeg \- compress an image file to a JPEG file
 .SH SYNOPSIS
@@ -16,7 +16,7 @@ cjpeg \- compress an image file to a JPEG file
 compresses the named image file, or the standard input if no file is
 named, and produces a JPEG/JFIF file on the standard output.
 The currently supported input file formats are: PPM (PBMPLUS color
-format), PGM (PBMPLUS gray-scale format), BMP, GIF, Targa, and RLE (Utah Raster
+format), PGM (PBMPLUS grayscale format), BMP, Targa, and RLE (Utah Raster
 Toolkit format).  (RLE is supported only if the URT library is available.)
 .SH OPTIONS
 All switch names may be abbreviated; for example,
@@ -27,28 +27,33 @@ or
 .BR \-gr .
 Most of the "basic" switches can be abbreviated to as little as one letter.
 Upper and lower case are equivalent (thus
-.B \-GIF
+.B \-BMP
 is the same as
-.BR \-gif ).
+.BR \-bmp ).
 British spellings are also accepted (e.g.,
 .BR \-greyscale ),
 though for brevity these are not mentioned below.
 .PP
 The basic switches are:
 .TP
-.BI \-quality " N"
+.BI \-quality " N[,...]"
 Scale quantization tables to adjust image quality.  Quality is 0 (worst) to
 100 (best); default is 75.  (See below for more info.)
 .TP
 .B \-grayscale
 Create monochrome JPEG file from color input.  Be sure to use this switch when
-compressing a grayscale GIF file, because
+compressing a grayscale BMP file, because
 .B cjpeg
-isn't bright enough to notice whether a GIF file uses only shades of gray.
+isn't bright enough to notice whether a BMP file uses only shades of gray.
 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.
+.TP
 .B \-optimize
 Perform optimization of entropy encoding parameters.  Without this, default
 encoding parameters are used.
@@ -59,6 +64,9 @@ runs somewhat slower and needs much more memory.  Image quality and speed of
 decompression are unaffected by
 .BR \-optimize .
 .TP
+.B \-progressive
+Create progressive JPEG file (see below).
+.TP
 .B \-targa
 Input file is Targa format.  Targa files that contain an "identification"
 field will not be automatically recognized by
@@ -84,7 +92,7 @@ often about right.  If you see defects at
 image.  (The optimal setting will vary from one image to another.)
 .PP
 .B \-quality
-100 will generate a quantization table of all 1's, eliminating loss in the
+100 will generate a quantization table of all 1's, minimizing loss in the
 quantization step (but there is still information loss in subsampling, as well
 as roundoff error).  This setting is mainly of interest for experimental
 purposes.  Quality values above about 95 are
@@ -101,25 +109,84 @@ values below about 25 generate 2-byte quantization tables, which are
 considered optional in the JPEG standard.
 .B cjpeg
 emits a warning message when you give such a quality value, because some
-commercial JPEG programs may be unable to decode the resulting file.  Use
+other JPEG programs may be unable to decode the resulting file.  Use
 .B \-baseline
 if you need to ensure compatibility at low quality values.)
 .PP
+The \fB-quality\fR option has been extended in this version of \fBcjpeg\fR to
+support separate quality settings for luminance and chrominance (or, in
+general, separate settings for every quantization table slot.)  The principle
+is the same as chrominance subsampling:  since the human eye is more sensitive
+to spatial changes in brightness than spatial changes in color, the chrominance
+components can be quantized more than the luminance components without
+incurring any visible image quality loss.  However, unlike subsampling, this
+feature reduces data in the frequency domain instead of the spatial domain,
+which allows for more fine-grained control.  This option is useful in
+quality-sensitive applications, for which the artifacts generated by
+subsampling may be unacceptable.
+.PP
+The \fB-quality\fR option accepts a comma-separated list of parameters, which
+respectively refer to the quality levels that should be assigned to the
+quantization table slots.  If there are more q-table slots than parameters,
+then the last parameter is replicated.  Thus, if only one quality parameter is
+given, this is used for both luminance and chrominance (slots 0 and 1,
+respectively), preserving the legacy behavior of cjpeg v6b and prior.
+More (or customized) quantization tables can be set with the \fB-qtables\fR
+option and assigned to components with the \fB-qslots\fR option (see the
+"wizard" switches below.)
+.PP
+JPEG files generated with separate luminance and chrominance quality are fully
+compliant with standard JPEG decoders.
+.PP
+.BR CAUTION:
+For this setting to be useful, be sure to pass an argument of \fB-sample 1x1\fR
+to \fBcjpeg\fR to disable chrominance subsampling.  Otherwise, the default
+subsampling level (2x2, AKA "4:2:0") will be used.
+.PP
+The
+.B \-progressive
+switch creates a "progressive JPEG" file.  In this type of JPEG file, the data
+is stored in multiple scans of increasing quality.  If the file is being
+transmitted over a slow communications link, the decoder can use the first
+scan to display a low-quality image very quickly, and can then improve the
+display with each subsequent scan.  The final image is exactly equivalent to a
+standard JPEG file of the same quality setting, and the total file size is
+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
 .B \-dct int
 Use integer DCT method (default).
 .TP
 .B \-dct fast
 Use fast integer DCT (less accurate).
+In libjpeg-turbo, the fast method is generally about 5-15% faster than the int
+method when using the x86/x86-64 SIMD extensions (results may vary with other
+SIMD implementations, or when using libjpeg-turbo without SIMD extensions.)
+For quality levels of 90 and below, there should be little or no perceptible
+difference between the two algorithms.  For quality levels above 90, however,
+the difference between the fast and the int methods becomes more pronounced.
+With quality=97, for instance, the fast method incurs generally about a 1-3 dB
+loss (in PSNR) relative to the int method, but this can be larger for some
+images.  Do not use the fast method with quality levels above 97.  The
+algorithm often degenerates at quality=98 and above and can actually produce a
+more lossy image than if lower quality levels had been used.  Also, in
+libjpeg-turbo, the fast method is not fully accelerated for quality levels
+above 97, so it will be slower than the int method.
 .TP
 .B \-dct float
 Use floating-point DCT method.
-The float method is very slightly more accurate than the int method, but is
+The float method is mainly a legacy feature.  It does not produce significantly
-much slower unless your machine has very fast floating-point hardware.  Also
+more accurate results than the int method, and it is much slower.  The float
-note that results of the floating-point method may vary slightly across
+method may also give different results on different machines due to varying
-machines, while the integer methods should give the same results everywhere.
+roundoff behavior, whereas the integer methods should give the same results on
-The fast integer method is much less accurate than the other two.
+all machines.
 .TP
 .BI \-restart " N"
 Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is
@@ -141,6 +208,11 @@ selects 4000000 bytes.  If more space is needed, temporary files will be used.
 .BI \-outfile " name"
 Send output image to the named file, not to standard output.
 .TP
+.BI \-memdst
+Compress to memory instead of a file.  This feature was implemented mainly as a
+way of testing the in-memory destination manager (jpeg_mem_dest()), but it is
+also useful for benchmarking, since it reduces the I/O overhead.
+.TP
 .B \-verbose
 Enable debug printout.  More
 .BR \-v 's
@@ -149,6 +221,9 @@ give more output.  Also, version information is printed at startup.
 .B \-debug
 Same as
 .BR \-verbose .
+.TP
+.B \-version
+Print version information and exit.
 .PP
 The
 .B \-restart
@@ -164,49 +239,38 @@ for images that will be transmitted across unreliable networks such as Usenet.
 The
 .B \-smooth
 option filters the input to eliminate fine-scale noise.  This is often useful
-when converting GIF files to JPEG: a moderate smoothing factor of 10 to 50
+when converting dithered images to JPEG: a moderate smoothing factor of 10 to
-gets rid of dithering patterns in the input file, resulting in a smaller JPEG
+50 gets rid of dithering patterns in the input file, resulting in a smaller
-file and a better-looking image.  Too large a smoothing factor will visibly
+JPEG file and a better-looking image.  Too large a smoothing factor will
-blur the image, however.
+visibly blur the image, however.
 .PP
 Switches for wizards:
 .TP
-.B \-arithmetic
-Use arithmetic coding rather than Huffman coding.  (Not currently
-supported for legal reasons.)
-.TP
 .B \-baseline
-Force a baseline JPEG file to be generated.  This clamps quantization values
+Force baseline-compatible quantization tables to be generated.  This clamps
-to 8 bits even at low quality settings.
+quantization values to 8 bits even at low quality settings.  (This switch is
-.TP
+poorly named, since it does not ensure that the output is actually baseline
-.B \-nointerleave
+JPEG.  For example, you can use
-Generate noninterleaved JPEG file (not yet supported).
+.B \-baseline
+and
+.B \-progressive
+together.)
 .TP
 .BI \-qtables " file"
-Use the quantization tables given in the specified file.  The file should
+Use the quantization tables given in the specified text file.
-contain one to four tables (64 values each) as plain text.  Comments preceded
-by '#' may be included in the file.  The tables are implicitly numbered
-0,1,etc.  If
-.BI \-quality " N"
-is also specified, the values in the file are scaled according to
-.BR cjpeg 's
-quality scaling curve.
 .TP
 .BI \-qslots " N[,...]"
-Select which quantization table to use for each color component.  By default,
+Select which quantization table to use for each color component.
-table 0 is used for luminance and table 1 for chrominance components.
 .TP
 .BI \-sample " HxV[,...]"
-Set JPEG sampling factors.  If you specify fewer H/V pairs than there are
+Set JPEG sampling factors for each color component.
-components, the remaining components are set to 1x1 sampling.  The default
+.TP
-setting is equivalent to \fB\-sample 2x2\fR.
+.BI \-scans " file"
+Use the scan script given in the specified text file.
 .PP
 The "wizard" switches are intended for experimentation with JPEG.  If you
-don't know what you are doing, \fBdon't use them\fR.  You can easily produce
+don't know what you are doing, \fBdon't use them\fR.  These switches are
-files with worse image quality and/or poorer compression than you'll get from
+documented further in the file wizard.txt.
-the default settings.  Furthermore, these switches should not be used when
-making files intended for general use, because not all JPEG implementations
-will support unusual JPEG parameter settings.
 .SH EXAMPLES
 .LP
 This example compresses the PPM file foo.ppm with a quality factor of
@@ -243,7 +307,9 @@ option to
 is worth using when you are making a "final" version for posting or archiving.
 It's also a win when you are using low quality settings to make very small
 JPEG files; the percentage improvement is often a lot more than it is on
-larger files.
+larger files.  (At present,
+.B \-optimize
+mode is always selected when generating progressive JPEG files.)
 .SH ENVIRONMENT
 .TP
 .B JPEGMEM
@@ -257,6 +323,7 @@ itself is overridden by an explicit
 .BR \-maxmemory .
 .SH SEE ALSO
 .BR djpeg (1),
+.BR jpegtran (1),
 .BR rdjpgcom (1),
 .BR wrjpgcom (1)
 .br
@@ -267,8 +334,15 @@ Wallace, Gregory K.  "The JPEG Still Picture Compression Standard",
 Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44.
 .SH AUTHOR
 Independent JPEG Group
+.PP
+This file was modified by The libjpeg-turbo Project to include only information
+relevant to libjpeg-turbo, to wordsmith certain sections, and to describe
+features not present in libjpeg.
 .SH BUGS
-Arithmetic coding is not supported for legal reasons.
+Support for GIF input files was removed in cjpeg v6b due to concerns over
+the Unisys LZW patent.  Although this patent expired in 2006, cjpeg still
+lacks GIF support, for these historical reasons.  (Conversion of GIF files to
+JPEG is usually a bad idea anyway.)
 .PP
 Not all variants of BMP and Targa file formats are supported.
 .PP
@@ -276,5 +350,3 @@ The
 .B \-targa
 switch is not a bug, it's a feature.  (It would be a bug if the Targa format
 designers had not been clueless.)
-.PP
-Still not as fast as we'd like.

cjpeg.c

@@ -1,8 +1,11 @@
 /*
  * cjpeg.c
  *
- * Copyright (C) 1991-1994, Thomas G. Lane.
+ * This file was part of the Independent JPEG Group's software:
- * This file is part of the Independent JPEG Group's software.
+ * Copyright (C) 1991-1998, Thomas G. Lane.
+ * Modified 2003-2011 by Guido Vollbeding.
+ * libjpeg-turbo Modifications:
+ * Copyright (C) 2010, 2013-2014, D. R. Commander.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains a command-line user interface for the JPEG compressor.
@@ -10,8 +13,8 @@
  *
  * Two different command line styles are permitted, depending on the
  * compile-time switch TWO_FILE_COMMANDLINE:
- *	cjpeg [options]  inputfile outputfile
+ *      cjpeg [options]  inputfile outputfile
- *	cjpeg [options]  [inputfile]
+ *      cjpeg [options]  [inputfile]
  * In the second style, output is always to standard output, which you'd
  * normally redirect to a file or pipe to some other program.  Input is
  * either from a named file or from standard input (typically redirected).
@@ -19,62 +22,28 @@
  * don't support pipes.  Also, you MUST use the first style if your system
  * doesn't do binary I/O to stdin/stdout.
  * To simplify script writing, the "-outfile" switch is provided.  The syntax
- *	cjpeg [options]  -outfile outputfile  inputfile
+ *      cjpeg [options]  -outfile outputfile  inputfile
  * works regardless of which command line style is used.
  */
 
-#include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
+#include "cdjpeg.h"             /* Common decls for cjpeg/djpeg applications */
-#include "jversion.h"		/* for version message */
+#include "jversion.h"           /* for version message */
+#include "jconfigint.h"
 
-#include <ctype.h>		/* to declare isupper(), tolower() */
+#ifdef USE_CCOMMAND             /* command-line reader for Macintosh */
-#ifdef NEED_SIGNAL_CATCHER
-#include <signal.h>		/* to declare signal() */
-#endif
-#ifdef USE_SETMODE
-#include <fcntl.h>		/* to declare setmode()'s parameter macros */
-/* If you have setmode() but not <io.h>, just delete this line: */
-#include <io.h>			/* to declare setmode() */
-#endif
-
-#ifdef USE_CCOMMAND		/* command-line reader for Macintosh */
 #ifdef __MWERKS__
-#include <SIOUX.h>              /* Metrowerks declares it here */
+#include <SIOUX.h>              /* Metrowerks needs this */
+#include <console.h>            /* ... and this */
 #endif
 #ifdef THINK_C
-#include <console.h>		/* Think declares it here */
+#include <console.h>            /* Think declares it here */
-#endif
-#endif
-
-#ifdef DONT_USE_B_MODE		/* define mode parameters for fopen() */
-#define READ_BINARY	"r"
-#define WRITE_BINARY	"w"
-#else
-#define READ_BINARY	"rb"
-#define WRITE_BINARY	"wb"
-#endif
-
-#ifndef EXIT_FAILURE		/* define exit() codes if not provided */
-#define EXIT_FAILURE  1
-#endif
-#ifndef EXIT_SUCCESS
-#ifdef VMS
-#define EXIT_SUCCESS  1		/* VMS is very nonstandard */
-#else
-#define EXIT_SUCCESS  0
-#endif
-#endif
-#ifndef EXIT_WARNING
-#ifdef VMS
-#define EXIT_WARNING  1		/* VMS is very nonstandard */
-#else
-#define EXIT_WARNING  2
 #endif
 #endif
 
 
 /* Create the add-on message string table. */
 
-#define JMESSAGE(code,string)	string ,
+#define JMESSAGE(code,string)   string ,
 
 static const char * const cdjpeg_message_table[] = {
 #include "cderror.h"
@@ -108,10 +77,10 @@ static const char * const cdjpeg_message_table[] = {
  * seldom-used ID field), so we provide a switch to force Targa input mode.
  */
 
-static boolean is_targa;	/* records user -targa switch */
+static boolean is_targa;        /* records user -targa switch */
 
 
-LOCAL cjpeg_source_ptr
+LOCAL(cjpeg_source_ptr)
 select_file_type (j_compress_ptr cinfo, FILE * infile)
 {
   int c;
@@ -155,63 +124,10 @@ select_file_type (j_compress_ptr cinfo, FILE * infile)
     break;
   }
 
-  return NULL;			/* suppress compiler warnings */
+  return NULL;                  /* suppress compiler warnings */
 }
 
 
-/*
- * Signal catcher to ensure that temporary files are removed before aborting.
- * NB: for Amiga Manx C this is actually a global routine named _abort();
- * we put "#define signal_catcher _abort" in jconfig.h.  Talk about bogus...
- */
-
-#ifdef NEED_SIGNAL_CATCHER
-
-static j_common_ptr sig_cinfo;
-
-GLOBAL void
-signal_catcher (int signum)
-{
-  if (sig_cinfo != NULL) {
-    if (sig_cinfo->err != NULL) /* turn off trace output */
-      sig_cinfo->err->trace_level = 0;
-    jpeg_destroy(sig_cinfo);	/* clean up memory allocation & temp files */
-  }
-  exit(EXIT_FAILURE);
-}
-
-#endif
-
-
-/*
- * Optional routine to display a percent-done figure on stderr.
- */
-
-#ifdef PROGRESS_REPORT
-
-METHODDEF void
-progress_monitor (j_common_ptr cinfo)
-{
-  cd_progress_ptr prog = (cd_progress_ptr) cinfo->progress;
-  int total_passes = prog->pub.total_passes + prog->total_extra_passes;
-  int percent_done = (int) (prog->pub.pass_counter*100L/prog->pub.pass_limit);
-
-  if (percent_done != prog->percent_done) {
-    prog->percent_done = percent_done;
-    if (total_passes > 1) {
-      fprintf(stderr, "\rPass %d/%d: %3d%% ",
-	      prog->pub.completed_passes + prog->completed_extra_passes + 1,
-	      total_passes, percent_done);
-    } else {
-      fprintf(stderr, "\r %3d%% ", percent_done);
-    }
-    fflush(stderr);
-  }
-}
-
-#endif
-
-
 /*
  * Argument-parsing code.
  * The switch parser is designed to be useful with DOS-style command line
@@ -221,11 +137,12 @@ progress_monitor (j_common_ptr cinfo)
  */
 
 
-static const char * progname;	/* program name for error messages */
+static const char * progname;   /* program name for error messages */
-static char * outfilename;	/* for -outfile switch */
+static char * outfilename;      /* for -outfile switch */
+boolean memdst;  /* for -memdst switch */
 
 
-LOCAL void
+LOCAL(void)
 usage (void)
 /* complain about bad command line */
 {
@@ -237,26 +154,33 @@ usage (void)
 #endif
 
   fprintf(stderr, "Switches (names may be abbreviated):\n");
-  fprintf(stderr, "  -quality N     Compression quality (0..100; 5-95 is useful range)\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
+#ifdef C_PROGRESSIVE_SUPPORTED
+  fprintf(stderr, "  -progressive   Create progressive JPEG file\n");
+#endif
 #ifdef TARGA_SUPPORTED
   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_ISLOW_SUPPORTED
   fprintf(stderr, "  -dct int       Use integer DCT method%s\n",
-	  (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
+          (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
 #endif
 #ifdef DCT_IFAST_SUPPORTED
   fprintf(stderr, "  -dct fast      Use fast integer DCT (less accurate)%s\n",
-	  (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
+          (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
 #endif
 #ifdef DCT_FLOAT_SUPPORTED
   fprintf(stderr, "  -dct float     Use floating-point DCT method%s\n",
-	  (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
+          (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
 #endif
   fprintf(stderr, "  -restart N     Set restart interval in rows, or in blocks with B\n");
 #ifdef INPUT_SMOOTHING_SUPPORTED
@@ -264,221 +188,26 @@ usage (void)
 #endif
   fprintf(stderr, "  -maxmemory N   Maximum memory to use (in kbytes)\n");
   fprintf(stderr, "  -outfile name  Specify name for output file\n");
+#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
+  fprintf(stderr, "  -memdst        Compress to memory instead of file (useful for benchmarking)\n");
+#endif
   fprintf(stderr, "  -verbose  or  -debug   Emit debug output\n");
+  fprintf(stderr, "  -version       Print version information and exit\n");
   fprintf(stderr, "Switches for wizards:\n");
-#ifdef C_ARITH_CODING_SUPPORTED
+  fprintf(stderr, "  -baseline      Force baseline quantization tables\n");
-  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
-#endif
-  fprintf(stderr, "  -baseline      Force baseline output\n");
-#ifdef C_MULTISCAN_FILES_SUPPORTED
-  fprintf(stderr, "  -nointerleave  Create noninterleaved JPEG file\n");
-#endif
   fprintf(stderr, "  -qtables file  Use quantization tables given in file\n");
   fprintf(stderr, "  -qslots N[,...]    Set component quantization tables\n");
   fprintf(stderr, "  -sample HxV[,...]  Set component sampling factors\n");
+#ifdef C_MULTISCAN_FILES_SUPPORTED
+  fprintf(stderr, "  -scans file    Create multi-scan JPEG per script file\n");
+#endif
   exit(EXIT_FAILURE);
 }
 
 
-LOCAL boolean
+LOCAL(int)
-keymatch (char * arg, const char * keyword, int minchars)
-/* Case-insensitive matching of (possibly abbreviated) keyword switches. */
-/* keyword is the constant keyword (must be lower case already), */
-/* minchars is length of minimum legal abbreviation. */
-{
-  register int ca, ck;
-  register int nmatched = 0;
-
-  while ((ca = *arg++) != '\0') {
-    if ((ck = *keyword++) == '\0')
-      return FALSE;		/* arg longer than keyword, no good */
-    if (isupper(ca))		/* force arg to lcase (assume ck is already) */
-      ca = tolower(ca);
-    if (ca != ck)
-      return FALSE;		/* no good */
-    nmatched++;			/* count matched characters */
-  }
-  /* reached end of argument; fail if it's too short for unique abbrev */
-  if (nmatched < minchars)
-    return FALSE;
-  return TRUE;			/* A-OK */
-}
-
-
-LOCAL int
-qt_getc (FILE * file)
-/* Read next char, skipping over any comments (# to end of line) */
-/* A comment/newline sequence is returned as a newline */
-{
-  register int ch;
-  
-  ch = getc(file);
-  if (ch == '#') {
-    do {
-      ch = getc(file);
-    } while (ch != '\n' && ch != EOF);
-  }
-  return ch;
-}
-
-
-LOCAL long
-read_qt_integer (FILE * file)
-/* Read an unsigned decimal integer from a quantization-table file */
-/* Swallows one trailing character after the integer */
-{
-  register int ch;
-  register long val;
-  
-  /* Skip any leading whitespace, detect EOF */
-  do {
-    ch = qt_getc(file);
-    if (ch == EOF)
-      return EOF;
-  } while (isspace(ch));
-  
-  if (! isdigit(ch)) {
-    fprintf(stderr, "%s: bogus data in quantization file\n", progname);
-    exit(EXIT_FAILURE);
-  }
-
-  val = ch - '0';
-  while (ch = qt_getc(file), isdigit(ch)) {
-    val *= 10;
-    val += ch - '0';
-  }
-  return val;
-}
-
-
-LOCAL void
-read_quant_tables (j_compress_ptr cinfo, char * filename, int scale_factor,
-		   boolean force_baseline)
-/* Read a set of quantization tables from the specified file.
- * The file is plain ASCII text: decimal numbers with whitespace between.
- * Comments preceded by '#' may be included in the file.
- * There may be one to NUM_QUANT_TBLS tables in the file, each of 64 values.
- * The tables are implicitly numbered 0,1,etc.
- * NOTE: does not affect the qslots mapping, which will default to selecting
- * table 0 for luminance (or primary) components, 1 for chrominance components.
- * You must use -qslots if you want a different component->table mapping.
- */
-{
-  /* ZIG[i] is the zigzag-order position of the i'th element of a DCT block */
-  /* read in natural order (left to right, top to bottom). */
-  static const int ZIG[DCTSIZE2] = {
-     0,  1,  5,  6, 14, 15, 27, 28,
-     2,  4,  7, 13, 16, 26, 29, 42,
-     3,  8, 12, 17, 25, 30, 41, 43,
-     9, 11, 18, 24, 31, 40, 44, 53,
-    10, 19, 23, 32, 39, 45, 52, 54,
-    20, 22, 33, 38, 46, 51, 55, 60,
-    21, 34, 37, 47, 50, 56, 59, 61,
-    35, 36, 48, 49, 57, 58, 62, 63
-    };
-  FILE * fp;
-  int tblno, i;
-  long val;
-  unsigned int table[DCTSIZE2];
-
-  if ((fp = fopen(filename, "r")) == NULL) {
-    fprintf(stderr, "%s: can't open %s\n", progname, filename);
-    exit(EXIT_FAILURE);
-  }
-  tblno = 0;
-
-  while ((val = read_qt_integer(fp)) != EOF) { /* read 1st element of table */
-    if (tblno >= NUM_QUANT_TBLS) {
-      fprintf(stderr, "%s: too many tables in file %s\n", progname, filename);
-      exit(EXIT_FAILURE);
-    }
-    table[0] = (unsigned int) val;
-    for (i = 1; i < DCTSIZE2; i++) {
-      if ((val = read_qt_integer(fp)) == EOF) {
-	fprintf(stderr, "%s: incomplete table in file %s\n", progname, filename);
-	exit(EXIT_FAILURE);
-      }
-      table[ZIG[i]] = (unsigned int) val;
-    }
-    jpeg_add_quant_table(cinfo, tblno, table, scale_factor, force_baseline);
-    tblno++;
-  }
-
-  fclose(fp);
-}
-
-
-LOCAL void
-set_quant_slots (j_compress_ptr cinfo, char *arg)
-/* Process a quantization-table-selectors parameter string, of the form
- *     N[,N,...]
- * If there are more components than parameters, the last value is replicated.
- */
-{
-  int val = 0;			/* default table # */
-  int ci;
-  char ch;
-
-  for (ci = 0; ci < MAX_COMPONENTS; ci++) {
-    if (*arg) {
-      ch = ',';			/* if not set by sscanf, will be ',' */
-      if (sscanf(arg, "%d%c", &val, &ch) < 1)
-	usage();
-      if (ch != ',')
-	usage();		/* syntax check */
-      if (val < 0 || val >= NUM_QUANT_TBLS) {
-	fprintf(stderr, "JPEG quantization tables are numbered 0..%d\n",
-		NUM_QUANT_TBLS-1);
-	exit(EXIT_FAILURE);
-      }
-      cinfo->comp_info[ci].quant_tbl_no = val;
-      while (*arg && *arg++ != ',') /* advance to next segment of arg string */
-	;
-    } else {
-      /* reached end of parameter, set remaining components to last table */
-      cinfo->comp_info[ci].quant_tbl_no = val;
-    }
-  }
-}
-
-
-LOCAL void
-set_sample_factors (j_compress_ptr cinfo, char *arg)
-/* Process a sample-factors parameter string, of the form
- *     HxV[,HxV,...]
- * If there are more components than parameters, "1x1" is assumed.
- */
-{
-  int ci, val1, val2;
-  char ch1, ch2;
-
-  for (ci = 0; ci < MAX_COMPONENTS; ci++) {
-    if (*arg) {
-      ch2 = ',';		/* if not set by sscanf, will be ',' */
-      if (sscanf(arg, "%d%c%d%c", &val1, &ch1, &val2, &ch2) < 3)
-	usage();
-      if ((ch1 != 'x' && ch1 != 'X') || ch2 != ',')
-	usage();		/* syntax check */
-      if (val1 <= 0 || val1 > 4 || val2 <= 0 || val2 > 4) {
-	fprintf(stderr, "JPEG sampling factors must be 1..4\n");
-	exit(EXIT_FAILURE);
-      }
-      cinfo->comp_info[ci].h_samp_factor = val1;
-      cinfo->comp_info[ci].v_samp_factor = val2;
-      while (*arg && *arg++ != ',') /* advance to next segment of arg string */
-	;
-    } else {
-      /* reached end of parameter, set remaining components to 1x1 sampling */
-      cinfo->comp_info[ci].h_samp_factor = 1;
-      cinfo->comp_info[ci].v_samp_factor = 1;
-    }
-  }
-}
-
-
-LOCAL int
 parse_switches (j_compress_ptr cinfo, int argc, char **argv,
-		int last_file_arg_seen, boolean for_real)
+                int last_file_arg_seen, boolean for_real)
 /* Parse optional switches.
  * Returns argv[] index of first file-name argument (== argc if none).
  * Any file names with indexes <= last_file_arg_seen are ignored;
@@ -490,22 +219,21 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
 {
   int argn;
   char * arg;
-  int quality;			/* -quality parameter */
-  int q_scale_factor;		/* scaling percentage for -qtables */
   boolean force_baseline;
-  char * qtablefile = NULL;	/* saves -qtables filename if any */
+  boolean simple_progressive;
-  char * qslotsarg = NULL;	/* saves -qslots parm if any */
+  char * qualityarg = NULL;     /* saves -quality parm if any */
-  char * samplearg = NULL;	/* saves -sample parm if any */
+  char * qtablefile = NULL;     /* saves -qtables filename if any */
+  char * qslotsarg = NULL;      /* saves -qslots parm if any */
+  char * samplearg = NULL;      /* saves -sample parm if any */
+  char * scansarg = NULL;       /* saves -scans parm if any */
 
   /* Set up default JPEG parameters. */
-  /* Note that default -quality level need not, and does not,
+
-   * match the default scaling for an explicit -qtables argument.
+  force_baseline = FALSE;       /* by default, allow 16-bit quantizers */
-   */
+  simple_progressive = FALSE;
-  quality = 75;			/* default -quality value */
-  q_scale_factor = 100;		/* default to no scaling for -qtables */
-  force_baseline = FALSE;	/* by default, allow 16-bit quantizers */
   is_targa = FALSE;
   outfilename = NULL;
+  memdst = FALSE;
   cinfo->err->trace_level = 0;
 
   /* Scan command line options, adjust parameters */
@@ -515,12 +243,12 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
     if (*arg != '-') {
       /* Not a switch, must be a file name argument */
       if (argn <= last_file_arg_seen) {
-	outfilename = NULL;	/* -outfile applies to just one input file */
+        outfilename = NULL;     /* -outfile applies to just one input file */
-	continue;		/* ignore this name if previously processed */
+        continue;               /* ignore this name if previously processed */
       }
-      break;			/* else done parsing switches */
+      break;                    /* else done parsing switches */
     }
-    arg++;			/* advance past switch marker character */
+    arg++;                      /* advance past switch marker character */
 
     if (keymatch(arg, "arithmetic", 1)) {
       /* Use arithmetic coding. */
@@ -528,26 +256,26 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       cinfo->arith_code = TRUE;
 #else
       fprintf(stderr, "%s: sorry, arithmetic coding not supported\n",
-	      progname);
+              progname);
       exit(EXIT_FAILURE);
 #endif
 
     } else if (keymatch(arg, "baseline", 1)) {
-      /* Force baseline output (8-bit quantizer values). */
+      /* Force baseline-compatible output (8-bit quantizer values). */
       force_baseline = TRUE;
 
     } else if (keymatch(arg, "dct", 2)) {
       /* Select DCT algorithm. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (keymatch(argv[argn], "int", 1)) {
-	cinfo->dct_method = JDCT_ISLOW;
+        cinfo->dct_method = JDCT_ISLOW;
       } else if (keymatch(argv[argn], "fast", 2)) {
-	cinfo->dct_method = JDCT_IFAST;
+        cinfo->dct_method = JDCT_IFAST;
       } else if (keymatch(argv[argn], "float", 2)) {
-	cinfo->dct_method = JDCT_FLOAT;
+        cinfo->dct_method = JDCT_FLOAT;
       } else
-	usage();
+        usage();
 
     } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
       /* Enable debug printouts. */
@@ -555,68 +283,88 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       static boolean printed_version = FALSE;
 
       if (! printed_version) {
-	fprintf(stderr, "Independent JPEG Group's CJPEG, version %s\n%s\n",
+        fprintf(stderr, "%s version %s (build %s)\n",
-		JVERSION, JCOPYRIGHT);
+                PACKAGE_NAME, VERSION, BUILD);
-	printed_version = TRUE;
+        fprintf(stderr, "%s\n\n", JCOPYRIGHT);
+        fprintf(stderr, "Emulating The Independent JPEG Group's software, version %s\n\n",
+                JVERSION);
+        printed_version = TRUE;
       }
       cinfo->err->trace_level++;
 
+    } else if (keymatch(arg, "version", 4)) {
+      fprintf(stderr, "%s version %s (build %s)\n",
+              PACKAGE_NAME, VERSION, BUILD);
+      exit(EXIT_SUCCESS);
+
     } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) {
       /* 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;
       char ch = 'x';
 
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
-	usage();
+        usage();
       if (ch == 'm' || ch == 'M')
-	lval *= 1000L;
+        lval *= 1000L;
       cinfo->mem->max_memory_to_use = lval * 1000L;
 
-    } else if (keymatch(arg, "nointerleave", 3)) {
-      /* Create noninterleaved file. */
-#ifdef C_MULTISCAN_FILES_SUPPORTED
-      cinfo->interleave = FALSE;
-#else
-      fprintf(stderr, "%s: sorry, multiple-scan support was not compiled\n",
-	      progname);
-      exit(EXIT_FAILURE);
-#endif
-
     } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {
       /* Enable entropy parm optimization. */
 #ifdef ENTROPY_OPT_SUPPORTED
       cinfo->optimize_coding = TRUE;
 #else
-      fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n",
+      fprintf(stderr, "%s: sorry, entropy optimization was not compiled in\n",
-	      progname);
+              progname);
       exit(EXIT_FAILURE);
 #endif
 
     } else if (keymatch(arg, "outfile", 4)) {
       /* Set output file name. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
-      outfilename = argv[argn];	/* save it away for later use */
+      outfilename = argv[argn]; /* save it away for later use */
+
+    } else if (keymatch(arg, "progressive", 1)) {
+      /* Select simple progressive mode. */
+#ifdef C_PROGRESSIVE_SUPPORTED
+      simple_progressive = TRUE;
+      /* We must postpone execution until num_components is known. */
+#else
+      fprintf(stderr, "%s: sorry, progressive output was not compiled in\n",
+              progname);
+      exit(EXIT_FAILURE);
+#endif
+
+    } else if (keymatch(arg, "memdst", 2)) {
+      /* Use in-memory destination manager */
+#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
+      memdst = TRUE;
+#else
+      fprintf(stderr, "%s: sorry, in-memory destination manager was not compiled in\n",
+              progname);
+      exit(EXIT_FAILURE);
+#endif
 
     } else if (keymatch(arg, "quality", 1)) {
-      /* Quality factor (quantization table scaling factor). */
+      /* Quality ratings (quantization table scaling factors). */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
-      if (sscanf(argv[argn], "%d", &quality) != 1)
+      qualityarg = argv[argn];
-	usage();
-      /* Change scale factor in case -qtables is present. */
-      q_scale_factor = jpeg_quality_scaling(quality);
 
     } else if (keymatch(arg, "qslots", 2)) {
       /* Quantization table slot numbers. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       qslotsarg = argv[argn];
       /* Must delay setting qslots until after we have processed any
        * colorspace-determining switches, since jpeg_set_colorspace sets
@@ -625,8 +373,8 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
 
     } else if (keymatch(arg, "qtables", 2)) {
       /* Quantization tables fetched from file. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       qtablefile = argv[argn];
       /* We postpone actually reading the file in case -quality comes later. */
 
@@ -635,40 +383,53 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       long lval;
       char ch = 'x';
 
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
-	usage();
+        usage();
       if (lval < 0 || lval > 65535L)
-	usage();
+        usage();
       if (ch == 'b' || ch == 'B') {
-	cinfo->restart_interval = (unsigned int) lval;
+        cinfo->restart_interval = (unsigned int) lval;
-	cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */
+        cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */
       } else {
-	cinfo->restart_in_rows = (int) lval;
+        cinfo->restart_in_rows = (int) lval;
-	/* restart_interval will be computed during startup */
+        /* restart_interval will be computed during startup */
       }
 
     } else if (keymatch(arg, "sample", 2)) {
       /* Set sampling factors. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       samplearg = argv[argn];
       /* Must delay setting sample factors until after we have processed any
        * colorspace-determining switches, since jpeg_set_colorspace sets
        * default sampling factors.
        */
 
+    } else if (keymatch(arg, "scans", 4)) {
+      /* Set scan script. */
+#ifdef C_MULTISCAN_FILES_SUPPORTED
+      if (++argn >= argc)       /* advance to next argument */
+        usage();
+      scansarg = argv[argn];
+      /* We must postpone reading the file in case -progressive appears. */
+#else
+      fprintf(stderr, "%s: sorry, multi-scan output was not compiled in\n",
+              progname);
+      exit(EXIT_FAILURE);
+#endif
+
     } else if (keymatch(arg, "smooth", 2)) {
       /* Set input smoothing factor. */
       int val;
 
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (sscanf(argv[argn], "%d", &val) != 1)
-	usage();
+        usage();
       if (val < 0 || val > 100)
-	usage();
+        usage();
       cinfo->smoothing_factor = val;
 
     } else if (keymatch(arg, "targa", 1)) {
@@ -676,7 +437,7 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       is_targa = TRUE;
 
     } else {
-      usage();			/* bogus switch */
+      usage();                  /* bogus switch */
     }
   }
 
@@ -686,20 +447,35 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
 
     /* Set quantization tables for selected quality. */
     /* Some or all may be overridden if -qtables is present. */
-    jpeg_set_quality(cinfo, quality, force_baseline);
+    if (qualityarg != NULL)     /* process -quality if it was present */
+      if (! set_quality_ratings(cinfo, qualityarg, force_baseline))
+        usage();
 
-    if (qtablefile != NULL)	/* process -qtables if it was present */
+    if (qtablefile != NULL)     /* process -qtables if it was present */
-      read_quant_tables(cinfo, qtablefile, q_scale_factor, force_baseline);
+      if (! read_quant_tables(cinfo, qtablefile, force_baseline))
+        usage();
 
-    if (qslotsarg != NULL)	/* process -qslots if it was present */
+    if (qslotsarg != NULL)      /* process -qslots if it was present */
-      set_quant_slots(cinfo, qslotsarg);
+      if (! set_quant_slots(cinfo, qslotsarg))
+        usage();
 
-    if (samplearg != NULL)	/* process -sample if it was present */
+    if (samplearg != NULL)      /* process -sample if it was present */
-      set_sample_factors(cinfo, samplearg);
+      if (! set_sample_factors(cinfo, samplearg))
+        usage();
 
+#ifdef C_PROGRESSIVE_SUPPORTED
+    if (simple_progressive)     /* process -progressive; -scans can override */
+      jpeg_simple_progression(cinfo);
+#endif
+
+#ifdef C_MULTISCAN_FILES_SUPPORTED
+    if (scansarg != NULL)       /* process -scans if it was present */
+      if (! read_scan_script(cinfo, scansarg))
+        usage();
+#endif
   }
 
-  return argn;			/* return index of next arg (file name) */
+  return argn;                  /* return index of next arg (file name) */
 }
 
 
@@ -707,7 +483,7 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
  * The main program.
  */
 
-GLOBAL int
+int
 main (int argc, char **argv)
 {
   struct jpeg_compress_struct cinfo;
@@ -718,7 +494,9 @@ main (int argc, char **argv)
   int file_index;
   cjpeg_source_ptr src_mgr;
   FILE * input_file;
-  FILE * output_file;
+  FILE * output_file = NULL;
+  unsigned char *outbuffer = NULL;
+  unsigned long outsize = 0;
   JDIMENSION num_scanlines;
 
   /* On Mac, fetch a command line. */
@@ -728,7 +506,7 @@ main (int argc, char **argv)
 
   progname = argv[0];
   if (progname == NULL || progname[0] == 0)
-    progname = "cjpeg";		/* in case C library doesn't provide it */
+    progname = "cjpeg";         /* in case C library doesn't provide it */
 
   /* Initialize the JPEG compression object with default error handling. */
   cinfo.err = jpeg_std_error(&jerr);
@@ -738,15 +516,6 @@ main (int argc, char **argv)
   jerr.first_addon_message = JMSG_FIRSTADDONCODE;
   jerr.last_addon_message = JMSG_LASTADDONCODE;
 
-  /* Now safe to enable signal catcher. */
-#ifdef NEED_SIGNAL_CATCHER
-  sig_cinfo = (j_common_ptr) &cinfo;
-  signal(SIGINT, signal_catcher);
-#ifdef SIGTERM			/* not all systems have SIGTERM */
-  signal(SIGTERM, signal_catcher);
-#endif
-#endif
-
   /* Initialize JPEG parameters.
    * Much of this may be overridden later.
    * In particular, we don't yet know the input file's color space,
@@ -765,19 +534,21 @@ main (int argc, char **argv)
   file_index = parse_switches(&cinfo, argc, argv, 0, FALSE);
 
 #ifdef TWO_FILE_COMMANDLINE
-  /* Must have either -outfile switch or explicit output file name */
+  if (!memdst) {
-  if (outfilename == NULL) {
+    /* Must have either -outfile switch or explicit output file name */
-    if (file_index != argc-2) {
+    if (outfilename == NULL) {
-      fprintf(stderr, "%s: must name one input and one output file\n",
+      if (file_index != argc-2) {
-	      progname);
+        fprintf(stderr, "%s: must name one input and one output file\n",
-      usage();
+                progname);
-    }
+        usage();
-    outfilename = argv[file_index+1];
+      }
-  } else {
+      outfilename = argv[file_index+1];
-    if (file_index != argc-1) {
+    } else {
-      fprintf(stderr, "%s: must name one input and one output file\n",
+      if (file_index != argc-1) {
-	      progname);
+        fprintf(stderr, "%s: must name one input and one output file\n",
-      usage();
+                progname);
+        usage();
+      }
     }
   }
 #else
@@ -796,17 +567,7 @@ main (int argc, char **argv)
     }
   } else {
     /* default input file is stdin */
-#ifdef USE_SETMODE		/* need to hack file mode? */
+    input_file = read_stdin();
-    setmode(fileno(stdin), O_BINARY);
-#endif
-#ifdef USE_FDOPEN		/* need to re-open in binary mode? */
-    if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) {
-      fprintf(stderr, "%s: can't open stdin\n", progname);
-      exit(EXIT_FAILURE);
-    }
-#else
-    input_file = stdin;
-#endif
   }
 
   /* Open the output file. */
@@ -815,30 +576,13 @@ main (int argc, char **argv)
       fprintf(stderr, "%s: can't open %s\n", progname, outfilename);
       exit(EXIT_FAILURE);
     }
-  } else {
+  } else if (!memdst) {
     /* default output file is stdout */
-#ifdef USE_SETMODE		/* need to hack file mode? */
+    output_file = write_stdout();
-    setmode(fileno(stdout), O_BINARY);
-#endif
-#ifdef USE_FDOPEN		/* need to re-open in binary mode? */
-    if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) {
-      fprintf(stderr, "%s: can't open stdout\n", progname);
-      exit(EXIT_FAILURE);
-    }
-#else
-    output_file = stdout;
-#endif
   }
 
 #ifdef PROGRESS_REPORT
-  /* Enable progress display, unless trace output is on */
+  start_progress_monitor((j_common_ptr) &cinfo, &progress);
-  if (jerr.trace_level == 0) {
-    progress.pub.progress_monitor = progress_monitor;
-    progress.completed_extra_passes = 0;
-    progress.total_extra_passes = 0;
-    progress.percent_done = -1;
-    cinfo.progress = &progress.pub;
-  }
 #endif
 
   /* Figure out the input file format, and set up to read it. */
@@ -855,7 +599,12 @@ main (int argc, char **argv)
   file_index = parse_switches(&cinfo, argc, argv, 0, TRUE);
 
   /* Specify data destination for compression */
-  jpeg_stdio_dest(&cinfo, output_file);
+#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
+  if (memdst)
+    jpeg_mem_dest(&cinfo, &outbuffer, &outsize);
+  else
+#endif
+    jpeg_stdio_dest(&cinfo, output_file);
 
   /* Start compressor */
   jpeg_start_compress(&cinfo, TRUE);
@@ -874,18 +623,20 @@ main (int argc, char **argv)
   /* Close files, if we opened them */
   if (input_file != stdin)
     fclose(input_file);
-  if (output_file != stdout)
+  if (output_file != stdout && output_file != NULL)
     fclose(output_file);
 
 #ifdef PROGRESS_REPORT
-  /* Clear away progress display */
+  end_progress_monitor((j_common_ptr) &cinfo);
-  if (jerr.trace_level == 0) {
-    fprintf(stderr, "\r                \r");
-    fflush(stderr);
-  }
 #endif
 
+  if (memdst) {
+    fprintf(stderr, "Compressed size:  %lu bytes\n", outsize);
+    if (outbuffer != NULL)
+      free(outbuffer);
+  }
+
   /* All done. */
   exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);
-  return 0;			/* suppress no-return-value warnings */
+  return 0;                     /* suppress no-return-value warnings */
 }

ckconfig.c

@@ -1,402 +0,0 @@
-/*
- * ckconfig.c
- *
- * Copyright (C) 1991-1994, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- */
-
-/*
- * This program is intended to help you determine how to configure the JPEG
- * software for installation on a particular system.  The idea is to try to
- * compile and execute this program.  If your compiler fails to compile the
- * program, make changes as indicated in the comments below.  Once you can
- * compile the program, run it, and it will produce a "jconfig.h" file for
- * your system.
- *
- * As a general rule, each time you try to compile this program,
- * pay attention only to the *first* error message you get from the compiler.
- * Many C compilers will issue lots of spurious error messages once they
- * have gotten confused.  Go to the line indicated in the first error message,
- * and read the comments preceding that line to see what to change.
- *
- * Almost all of the edits you may need to make to this program consist of
- * changing a line that reads "#define SOME_SYMBOL" to "#undef SOME_SYMBOL",
- * or vice versa.  This is called defining or undefining that symbol.
- */
-
-
-/* First we must see if your system has the include files we need.
- * We start out with the assumption that your system has all the ANSI-standard
- * include files.  If you get any error trying to include one of these files,
- * undefine the corresponding HAVE_xxx symbol.
- */
-
-#define HAVE_STDDEF_H		/* replace 'define' by 'undef' if error here */
-#ifdef HAVE_STDDEF_H		/* next line will be skipped if you undef... */
-#include <stddef.h>
-#endif
-
-#define HAVE_STDLIB_H		/* same thing for stdlib.h */
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#include <stdio.h>		/* If you ain't got this, you ain't got C. */
-
-/* We have to see if your string functions are defined by
- * strings.h (old BSD convention) or string.h (everybody else).
- * We try the non-BSD convention first; define NEED_BSD_STRINGS
- * if the compiler says it can't find string.h.
- */
-
-#undef NEED_BSD_STRINGS
-
-#ifdef NEED_BSD_STRINGS
-#include <strings.h>
-#else
-#include <string.h>
-#endif
-
-/* On some systems (especially older Unix machines), type size_t is
- * defined only in the include file <sys/types.h>.  If you get a failure
- * on the size_t test below, try defining NEED_SYS_TYPES_H.
- */
-
-#undef NEED_SYS_TYPES_H		/* start by assuming we don't need it */
-#ifdef NEED_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-
-/* Usually type size_t is defined in one of the include files we've included
- * above.  If not, you'll get an error on the "typedef size_t my_size_t;" line.
- * In that case, first try defining NEED_SYS_TYPES_H just above.
- * If that doesn't work, you'll have to search through your system library
- * to figure out which include file defines "size_t".  Look for a line that
- * says "typedef something-or-other size_t;".  Then, change the line below
- * that says "#include <someincludefile.h>" to instead include the file
- * you found size_t in, and define NEED_SPECIAL_INCLUDE.  If you can't find
- * type size_t anywhere, try replacing "#include <someincludefile.h>" with
- * "typedef unsigned int size_t;".
- */
-
-#undef NEED_SPECIAL_INCLUDE	/* assume we DON'T need it, for starters */
-
-#ifdef NEED_SPECIAL_INCLUDE
-#include <someincludefile.h>
-#endif
-
-typedef size_t my_size_t;	/* The payoff: do we have size_t now? */
-
-
-/* The next question is whether your compiler supports ANSI-style function
- * prototypes.  You need to know this in order to choose between using
- * makefile.ansi and using makefile.unix.
- * The #define line below is set to assume you have ANSI function prototypes.
- * If you get an error in this group of lines, undefine HAVE_PROTOTYPES.
- */
-
-#define HAVE_PROTOTYPES
-
-#ifdef HAVE_PROTOTYPES
-int testfunction (int arg1, int * arg2); /* check prototypes */
-
-struct methods_struct {		/* check method-pointer declarations */
-  int (*error_exit) (char *msgtext);
-  int (*trace_message) (char *msgtext);
-  int (*another_method) (void);
-};
-
-int testfunction (int arg1, int * arg2) /* check definitions */
-{
-  return arg2[arg1];
-}
-
-int test2function (void)	/* check void arg list */
-{
-  return 0;
-}
-#endif
-
-
-/* Now we want to find out if your compiler knows what "unsigned char" means.
- * If you get an error on the "unsigned char un_char;" line,
- * then undefine HAVE_UNSIGNED_CHAR.
- */
-
-#define HAVE_UNSIGNED_CHAR
-
-#ifdef HAVE_UNSIGNED_CHAR
-unsigned char un_char;
-#endif
-
-
-/* Now we want to find out if your compiler knows what "unsigned short" means.
- * If you get an error on the "unsigned short un_short;" line,
- * then undefine HAVE_UNSIGNED_SHORT.
- */
-
-#define HAVE_UNSIGNED_SHORT
-
-#ifdef HAVE_UNSIGNED_SHORT
-unsigned short un_short;
-#endif
-
-
-/* Now we want to find out if your compiler understands type "void".
- * If you get an error anywhere in here, undefine HAVE_VOID.
- */
-
-#define HAVE_VOID
-
-#ifdef HAVE_VOID
-/* Caution: a C++ compiler will insist on complete prototypes */
-typedef void * void_ptr;	/* check void * */
-#ifdef HAVE_PROTOTYPES		/* check ptr to function returning void */
-typedef void (*void_func) (int a, int b);
-#else
-typedef void (*void_func) ();
-#endif
-
-#ifdef HAVE_PROTOTYPES		/* check void function result */
-void test3function (void_ptr arg1, void_func arg2)
-#else
-void test3function (arg1, arg2)
-     void_ptr arg1;
-     void_func arg2;
-#endif
-{
-  char * locptr = (char *) arg1; /* check casting to and from void * */
-  arg1 = (void *) locptr;
-  (*arg2) (1, 2);		/* check call of fcn returning void */
-}
-#endif
-
-
-/* Now we want to find out if your compiler knows what "const" means.
- * If you get an error here, undefine HAVE_CONST.
- */
-
-#define HAVE_CONST
-
-#ifdef HAVE_CONST
-static const int carray[3] = {1, 2, 3};
-
-#ifdef HAVE_PROTOTYPES
-int test4function (const int arg1)
-#else
-int test4function (arg1)
-     const int arg1;
-#endif
-{
-  return carray[arg1];
-}
-#endif
-
-
-/* If you get an error or warning about this structure definition,
- * define INCOMPLETE_TYPES_BROKEN.
- */
-
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifndef INCOMPLETE_TYPES_BROKEN
-typedef struct undefined_structure * undef_struct_ptr;
-#endif
-
-
-/* If you get an error about duplicate names,
- * define NEED_SHORT_EXTERNAL_NAMES.
- */
-
-#undef NEED_SHORT_EXTERNAL_NAMES
-
-#ifndef NEED_SHORT_EXTERNAL_NAMES
-
-int possibly_duplicate_function ()
-{
-  return 0;
-}
-
-int possibly_dupli_function ()
-{
-  return 1;
-}
-
-#endif
-
-
-
-/************************************************************************
- *  OK, that's it.  You should not have to change anything beyond this
- *  point in order to compile and execute this program.  (You might get
- *  some warnings, but you can ignore them.)
- *  When you run the program, it will make a couple more tests that it
- *  can do automatically, and then it will create jconfig.h and print out
- *  any additional suggestions it has.
- ************************************************************************
- */
-
-
-#ifdef HAVE_PROTOTYPES
-int is_char_signed (int arg)
-#else
-int is_char_signed (arg)
-     int arg;
-#endif
-{
-  if (arg == 189) {		/* expected result for unsigned char */
-    return 0;			/* type char is unsigned */
-  }
-  else if (arg != -67) {	/* expected result for signed char */
-    printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n");
-    printf("I fear the JPEG software will not work at all.\n\n");
-  }
-  return 1;			/* assume char is signed otherwise */
-}
-
-
-#ifdef HAVE_PROTOTYPES
-int is_shifting_signed (long arg)
-#else
-int is_shifting_signed (arg)
-     long arg;
-#endif
-/* See whether right-shift on a long is signed or not. */
-{
-  long res = arg >> 4;
-
-  if (res == -0x7F7E80CL) {	/* expected result for signed shift */
-    return 1;			/* right shift is signed */
-  }
-  /* see if unsigned-shift hack will fix it. */
-  /* we can't just test exact value since it depends on width of long... */
-  res |= (~0L) << (32-4);
-  if (res == -0x7F7E80CL) {	/* expected result now? */
-    return 0;			/* right shift is unsigned */
-  }
-  printf("Right shift isn't acting as I expect it to.\n");
-  printf("I fear the JPEG software will not work at all.\n\n");
-  return 0;			/* try it with unsigned anyway */
-}
-
-
-#ifdef HAVE_PROTOTYPES
-int main (int argc, char ** argv)
-#else
-int main (argc, argv)
-     int argc;
-     char ** argv;
-#endif
-{
-  char signed_char_check = (char) (-67);
-  FILE *outfile;
-
-  /* Attempt to write jconfig.h */
-  if ((outfile = fopen("jconfig.h", "w")) == NULL) {
-    printf("Failed to write jconfig.h\n");
-    return 1;
-  }
-
-  /* Write out all the info */
-  fprintf(outfile, "/* jconfig.h --- generated by ckconfig.c */\n");
-  fprintf(outfile, "/* see jconfig.doc for explanations */\n\n");
-#ifdef HAVE_PROTOTYPES
-  fprintf(outfile, "#define HAVE_PROTOTYPES\n");
-#else
-  fprintf(outfile, "#undef HAVE_PROTOTYPES\n");
-#endif
-#ifdef HAVE_UNSIGNED_CHAR
-  fprintf(outfile, "#define HAVE_UNSIGNED_CHAR\n");
-#else
-  fprintf(outfile, "#undef HAVE_UNSIGNED_CHAR\n");
-#endif
-#ifdef HAVE_UNSIGNED_SHORT
-  fprintf(outfile, "#define HAVE_UNSIGNED_SHORT\n");
-#else
-  fprintf(outfile, "#undef HAVE_UNSIGNED_SHORT\n");
-#endif
-#ifdef HAVE_VOID
-  fprintf(outfile, "/* #define void char */\n");
-#else
-  fprintf(outfile, "#define void char\n");
-#endif
-#ifdef HAVE_CONST
-  fprintf(outfile, "/* #define const */\n");
-#else
-  fprintf(outfile, "#define const\n");
-#endif
-  if (is_char_signed((int) signed_char_check))
-    fprintf(outfile, "#undef CHAR_IS_UNSIGNED\n");
-  else
-    fprintf(outfile, "#define CHAR_IS_UNSIGNED\n");
-#ifdef HAVE_STDDEF_H
-  fprintf(outfile, "#define HAVE_STDDEF_H\n");
-#else
-  fprintf(outfile, "#undef HAVE_STDDEF_H\n");
-#endif
-#ifdef HAVE_STDLIB_H
-  fprintf(outfile, "#define HAVE_STDLIB_H\n");
-#else
-  fprintf(outfile, "#undef HAVE_STDLIB_H\n");
-#endif
-#ifdef NEED_BSD_STRINGS
-  fprintf(outfile, "#define NEED_BSD_STRINGS\n");
-#else
-  fprintf(outfile, "#undef NEED_BSD_STRINGS\n");
-#endif
-#ifdef NEED_SYS_TYPES_H
-  fprintf(outfile, "#define NEED_SYS_TYPES_H\n");
-#else
-  fprintf(outfile, "#undef NEED_SYS_TYPES_H\n");
-#endif
-  fprintf(outfile, "#undef NEED_FAR_POINTERS\n");
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-  fprintf(outfile, "#define NEED_SHORT_EXTERNAL_NAMES\n");
-#else
-  fprintf(outfile, "#undef NEED_SHORT_EXTERNAL_NAMES\n");
-#endif
-#ifdef INCOMPLETE_TYPES_BROKEN
-  fprintf(outfile, "#define INCOMPLETE_TYPES_BROKEN\n");
-#else
-  fprintf(outfile, "#undef INCOMPLETE_TYPES_BROKEN\n");
-#endif
-  fprintf(outfile, "\n#ifdef JPEG_INTERNALS\n\n");
-  if (is_shifting_signed(-0x7F7E80B1L))
-    fprintf(outfile, "#undef RIGHT_SHIFT_IS_UNSIGNED\n");
-  else
-    fprintf(outfile, "#define RIGHT_SHIFT_IS_UNSIGNED\n");
-  fprintf(outfile, "\n#endif /* JPEG_INTERNALS */\n");
-  fprintf(outfile, "\n#ifdef JPEG_CJPEG_DJPEG\n\n");
-  fprintf(outfile, "#define BMP_SUPPORTED		/* BMP image file format */\n");
-  fprintf(outfile, "#define GIF_SUPPORTED		/* GIF image file format */\n");
-  fprintf(outfile, "#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */\n");
-  fprintf(outfile, "#undef RLE_SUPPORTED		/* Utah RLE image file format */\n");
-  fprintf(outfile, "#define TARGA_SUPPORTED		/* Targa image file format */\n\n");
-  fprintf(outfile, "#undef TWO_FILE_COMMANDLINE	/* You may need this on non-Unix systems */\n");
-  fprintf(outfile, "#undef NEED_SIGNAL_CATCHER	/* Define this if you use jmemname.c */\n");
-  fprintf(outfile, "#undef DONT_USE_B_MODE\n");
-  fprintf(outfile, "/* #define PROGRESS_REPORT */	/* optional */\n");
-  fprintf(outfile, "\n#endif /* JPEG_CJPEG_DJPEG */\n");
-
-  /* Close the jconfig.h file */
-  fclose(outfile);
-
-  /* User report */
-  printf("Configuration check for Independent JPEG Group's software done.\n");
-  printf("\nI have written the jconfig.h file for you.\n\n");
-#ifdef HAVE_PROTOTYPES
-  printf("You should use makefile.ansi as the starting point for your Makefile.\n");
-#else
-  printf("You should use makefile.unix as the starting point for your Makefile.\n");
-#endif
-
-#ifdef NEED_SPECIAL_INCLUDE
-  printf("\nYou'll need to change jconfig.h to include the system include file\n");
-  printf("that you found type size_t in, or add a direct definition of type\n");
-  printf("size_t if that's what you used.  Just add it to the end.\n");
-#endif
-
-  return 0;
-}

cmakescripts/md5cmp.cmake

@@ -0,0 +1,15 @@
+if(NOT MD5)
+  message(FATAL_ERROR "MD5 not specified")
+endif()
+
+if(NOT FILE)
+  message(FATAL_ERROR "FILE not specified")
+endif()
+
+file(MD5 ${FILE} MD5FILE)
+
+if(NOT MD5 STREQUAL MD5FILE)
+	message(FATAL_ERROR "MD5 of ${FILE} should be ${MD5}, not ${MD5FILE}.")
+else()
+	message(STATUS "${MD5}: OK")
+endif()

cmakescripts/testclean.cmake

@@ -0,0 +1,34 @@
+file(GLOB FILES
+  testout*
+  *_GRAY_*.bmp
+  *_GRAY_*.png
+  *_GRAY_*.ppm
+  *_GRAY_*.jpg
+  *_GRAY.yuv
+  *_420_*.bmp
+  *_420_*.png
+  *_420_*.ppm
+  *_420_*.jpg
+  *_420.yuv
+  *_422_*.bmp
+  *_422_*.png
+  *_422_*.ppm
+  *_422_*.jpg
+  *_422.yuv
+  *_444_*.bmp
+  *_444_*.png
+  *_444_*.ppm
+  *_444_*.jpg
+  *_444.yuv
+  *_440_*.bmp
+  *_440_*.png
+  *_440_*.ppm
+  *_440_*.jpg
+  *_440.yuv)
+
+if(NOT FILES STREQUAL "")
+  message(STATUS "Removing test files")
+  file(REMOVE ${FILES})
+else()
+  message(STATUS "No files to remove")
+endif()

coderules.doc

@@ -1,118 +0,0 @@
-IJG JPEG LIBRARY:  CODING RULES
-
-Copyright (C) 1991-1994, Thomas G. Lane.
-This file is part of the Independent JPEG Group's software.
-For conditions of distribution and use, see the accompanying README file.
-
-
-Since numerous people will be contributing code and bug fixes, it's important
-to establish a common coding style.  The goal of using similar coding styles
-is much more important than the details of just what that style is.
-
-In general we follow the recommendations of "Recommended C Style and Coding
-Standards" revision 6.1 (Cannon et al. as modified by Spencer, Keppel and
-Brader).  This document is available in the IJG FTP archive (see
-jpeg/doc/cstyle.ms.tbl.Z, or cstyle.txt.Z for those without nroff/tbl).
-
-Block comments should be laid out thusly:
-
-/*
- *  Block comments in this style.
- */
-
-We indent statements in K&R style, e.g.,
-	if (test) {
-	  then-part;
-	} else {
-	  else-part;
-	}
-with two spaces per indentation level.  (This indentation convention is
-handled automatically by GNU Emacs and many other text editors.)
-
-Multi-word names should be written in lower case with underscores, e.g.,
-multi_word_name (not multiWordName).  Preprocessor symbols and enum constants
-are similar but upper case (MULTI_WORD_NAME).  Names should be unique within
-the first fifteen characters.  (On some older systems, global names must be
-unique within six characters.  We accommodate this without cluttering the
-source code by using macros to substitute shorter names.)
-
-We use function prototypes everywhere; we rely on automatic source code
-transformation to feed prototype-less C compilers.  Transformation is done
-by the simple and portable tool 'ansi2knr.c' (courtesy of Ghostscript).
-ansi2knr is not very bright, so it imposes a format requirement on function
-declarations: the function name MUST BEGIN IN COLUMN 1.  Thus all functions
-should be written in the following style:
-
-LOCAL int *
-function_name (int a, char *b)
-{
-    code...
-}
-
-Note that each function definition is prefixed with GLOBAL, LOCAL, or
-METHODDEF.  These macros expand to "static" or nothing as appropriate.
-They provide a readable indication of the routine's usage and can readily be
-changed for special needs.  (For instance, all routines can be made global for
-use with debuggers or code profilers that require it.)
-
-ansi2knr does not transform method declarations (function pointers in
-structs).  We handle these with a macro JMETHOD, defined as
-	#ifdef HAVE_PROTOTYPES
-	#define JMETHOD(type,methodname,arglist)  type (*methodname) arglist
-	#else
-	#define JMETHOD(type,methodname,arglist)  type (*methodname) ()
-	#endif
-which is used like this:
-	struct function_pointers {
-	  JMETHOD(void, init_entropy_encoder, (int somearg, jparms *jp));
-	  JMETHOD(void, term_entropy_encoder, (void));
-	};
-Note the set of parentheses surrounding the parameter list.
-
-A similar solution is used for external function declarations (see the JPP
-macro).
-
-If the code is to work on non-ANSI compilers, we cannot rely on a prototype
-declaration to coerce actual parameters into the right types.  Therefore, use
-explicit casts on actual parameters whenever the actual parameter type is not
-identical to the formal parameter.  Beware of implicit conversions to "int".
-
-It seems there are some non-ANSI compilers in which the sizeof() operator
-is defined to return int, yet size_t is defined as long.  Needless to say,
-this is brain-damaged.  Always use the SIZEOF() macro in place of sizeof(),
-so that the result is guaranteed to be of type size_t.
-
-
-The JPEG library is intended to be used within larger programs.  Furthermore,
-we want it to be reentrant so that it can be used by applications that process
-multiple images concurrently.  The following rules support these requirements:
-
-1. Avoid direct use of file I/O, "malloc", error report printouts, etc;
-pass these through the common routines provided.
-
-2. Minimize global namespace pollution.  Functions should be declared static
-wherever possible.  (Note that our method-based calling conventions help this
-a lot: in many modules only the initialization function will ever need to be
-called directly, so only that function need be externally visible.)  All
-global function names should begin with "jpeg_", and should have an
-abbreviated name (unique in the first six characters) substituted by macro
-when NEED_SHORT_EXTERNAL_NAMES is set.
-
-3. Don't use global variables; anything that must be used in another module
-should be in the common data structures.
-
-4. Don't use static variables except for read-only constant tables.  Variables
-that should be private to a module can be placed into private structures (see
-the system architecture document, structure.doc).
-
-5. Source file names should begin with "j" for files that are part of the
-library proper; source files that are not part of the library, such as cjpeg.c
-and djpeg.c, do not begin with "j".  Keep source file names to eight
-characters (plus ".c" or ".h", etc) to make life easy for MS-DOSers.  Keep
-compression and decompression code in separate source files --- some
-applications may want only one half of the library.
-
-Note: these rules (particularly #4) are not followed religiously in the
-modules that are used in cjpeg/djpeg but are not part of the JPEG library
-proper.  Those modules are not really intended to be used in other
-applications.

coderules.txt

@@ -0,0 +1,78 @@
+IJG JPEG LIBRARY:  CODING RULES
+
+This file was part of the Independent JPEG Group's software:
+Copyright (C) 1991-1996, Thomas G. Lane.
+It was modified by The libjpeg-turbo Project to include only information
+relevant to libjpeg-turbo.
+For conditions of distribution and use, see the accompanying README file.
+
+
+Since numerous people will be contributing code and bug fixes, it's important
+to establish a common coding style.  The goal of using similar coding styles
+is much more important than the details of just what that style is.
+
+In general we follow the recommendations of "Recommended C Style and Coding
+Standards" revision 6.1 (Cannon et al. as modified by Spencer, Keppel and
+Brader).  This document is available in the IJG FTP archive (see
+jpeg/doc/cstyle.ms.tbl.Z, or cstyle.txt.Z for those without nroff/tbl).
+
+Block comments should be laid out thusly:
+
+/*
+ *  Block comments in this style.
+ */
+
+We indent statements in K&R style, e.g.,
+        if (test) {
+          then-part;
+        } else {
+          else-part;
+        }
+with two spaces per indentation level.  (This indentation convention is
+handled automatically by GNU Emacs and many other text editors.)
+
+Multi-word names should be written in lower case with underscores, e.g.,
+multi_word_name (not multiWordName).  Preprocessor symbols and enum constants
+are similar but upper case (MULTI_WORD_NAME).  Names should be unique within
+the first fifteen characters.
+
+Note that each function definition must begin with GLOBAL(type), LOCAL(type),
+or METHODDEF(type).  These macros expand to "static type" or just "type" as
+appropriate.  They provide a readable indication of the routine's usage and
+can readily be changed for special needs.  (For instance, special linkage
+keywords can be inserted for use in Windows DLLs.)
+
+A similar solution is used for external function declarations (see the EXTERN
+macro.)
+
+
+The JPEG library is intended to be used within larger programs.  Furthermore,
+we want it to be reentrant so that it can be used by applications that process
+multiple images concurrently.  The following rules support these requirements:
+
+1. Avoid direct use of file I/O, "malloc", error report printouts, etc;
+pass these through the common routines provided.
+
+2. Minimize global namespace pollution.  Functions should be declared static
+wherever possible.  (Note that our method-based calling conventions help this
+a lot: in many modules only the initialization function will ever need to be
+called directly, so only that function need be externally visible.)  All
+global function names should begin with "jpeg_".
+
+3. Don't use global variables; anything that must be used in another module
+should be in the common data structures.
+
+4. Don't use static variables except for read-only constant tables.  Variables
+that should be private to a module can be placed into private structures (see
+the system architecture document, structure.txt).
+
+5. Source file names should begin with "j" for files that are part of the
+library proper; source files that are not part of the library, such as cjpeg.c
+and djpeg.c, do not begin with "j".  Keep compression and decompression code in
+separate source files --- some applications may want only one half of the
+library.
+
+Note: these rules (particularly #4) are not followed religiously in the
+modules that are used in cjpeg/djpeg but are not part of the JPEG library
+proper.  Those modules are not really intended to be used in other
+applications.

configure.ac

@@ -0,0 +1,582 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.56])
+AC_INIT([libjpeg-turbo], [1.4.1])
+BUILD=`date +%Y%m%d`
+
+AM_INIT_AUTOMAKE([-Wall foreign dist-bzip2])
+AC_PREFIX_DEFAULT(/opt/libjpeg-turbo)
+
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+# Checks for programs.
+SAVED_CFLAGS=${CFLAGS}
+SAVED_CPPFLAGS=${CPPFLAGS}
+AC_PROG_CPP
+AC_PROG_CC
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+AM_PROG_AS
+AM_PROG_CC_C_O
+AC_PROG_INSTALL
+AC_PROG_LIBTOOL
+AC_PROG_LN_S
+
+# When the prefix is /opt/libjpeg-turbo, we assume that an "official" binary is
+# being created, and thus we install things into specific locations.
+
+old_prefix=${prefix}
+if test "x$prefix" = "xNONE" -a "x$ac_default_prefix" != "x"; then
+  prefix=$ac_default_prefix
+fi
+DATADIR=`eval echo ${datadir}`
+DATADIR=`eval echo $DATADIR`
+if test "$DATADIR" = "/opt/libjpeg-turbo/share"; then
+  datadir='${prefix}'
+fi
+DATADIR=`eval echo ${datarootdir}`
+DATADIR=`eval echo $DATADIR`
+if test "$DATADIR" = "/opt/libjpeg-turbo/share"; then
+  datarootdir='${prefix}'
+fi
+DOCDIR=`eval echo ${docdir}`
+DOCDIR=`eval echo $DOCDIR`
+if test "$DOCDIR" = "/opt/libjpeg-turbo/doc/libjpeg-turbo"; then
+  docdir='${datadir}/doc'
+fi
+
+old_exec_prefix=${exec_prefix}
+if test "x$exec_prefix" = "xNONE"; then
+  exec_prefix=${prefix}
+fi
+
+AC_CHECK_SIZEOF(size_t)
+
+if test "x${libdir}" = 'x${exec_prefix}/lib' -o "x${libdir}" = 'x${prefix}/lib'; then
+  LIBDIR=`eval echo ${libdir}`
+  LIBDIR=`eval echo $LIBDIR`
+  if test "$LIBDIR" = "/opt/libjpeg-turbo/lib"; then
+    case $host_os in
+      darwin*)
+        ;;
+      *)
+        if test "${ac_cv_sizeof_size_t}" = "8"; then
+          libdir='${exec_prefix}/lib64'
+        elif test "${ac_cv_sizeof_size_t}" = "4"; then
+          libdir='${exec_prefix}/lib32'
+        fi
+        ;;
+    esac
+  fi
+fi
+exec_prefix=${old_exec_prefix}
+prefix=${old_prefix}
+
+# Check whether compiler supports pointers to undefined structures
+AC_MSG_CHECKING(whether compiler supports pointers to undefined structures)
+AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], ,
+  AC_MSG_RESULT(yes),
+  [AC_MSG_RESULT(no)
+   AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1],
+     [Compiler does not support pointers to undefined structures.])])
+
+if test "x${GCC}" = "xyes"; then
+  if test "x${SAVED_CFLAGS}" = "x"; then
+    CFLAGS=-O3
+  fi
+  if test "x${SAVED_CPPFLAGS}" = "x"; then
+    CPPFLAGS=-Wall
+  fi
+fi
+
+AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
+if test "x${SUNCC}" = "xyes"; then
+  if test "x${SAVED_CFLAGS}" = "x"; then
+    CFLAGS=-xO5
+  fi
+fi
+
+# Checks for libraries.
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([stddef.h stdlib.h locale.h string.h])
+AC_CHECK_HEADER([sys/types.h],
+  AC_DEFINE([NEED_SYS_TYPES_H], 1, [Define if you need to include <sys/types.h> to get size_t.]))
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+AC_C_CHAR_UNSIGNED
+AC_C_INLINE
+AC_TYPE_SIZE_T
+AC_CHECK_TYPES([unsigned char, unsigned short])
+
+AC_MSG_CHECKING([if right shift is signed])
+AC_TRY_RUN(
+  [#include <stdio.h>
+   int is_shifting_signed (long arg) {
+     long res = arg >> 4;
+
+     if (res == -0x7F7E80CL)
+       return 1; /* right shift is signed */
+
+     /* see if unsigned-shift hack will fix it. */
+     /* we can't just test exact value since it depends on width of long... */
+     res |= (~0L) << (32-4);
+     if (res == -0x7F7E80CL)
+       return 0; /* right shift is unsigned */
+
+     printf("Right shift isn't acting as I expect it to.\n");
+     printf("I fear the JPEG software will not work at all.\n\n");
+     return 0; /* try it with unsigned anyway */
+   }
+   int main (void) {
+     exit(is_shifting_signed(-0x7F7E80B1L));
+   }],
+  [AC_MSG_RESULT(no)
+   AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], 1,
+     [Define if your (broken) compiler shifts signed values as if they were unsigned.])],
+  [AC_MSG_RESULT(yes)],
+  [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)])
+
+# Checks for library functions.
+AC_CHECK_FUNCS([memset memcpy], [],
+  [AC_DEFINE([NEED_BSD_STRINGS], 1,
+     [Define if you have BSD-like bzero and bcopy in <strings.h> rather than memset/memcpy in <string.h>.])])
+
+AC_MSG_CHECKING([libjpeg API version])
+AC_ARG_VAR(JPEG_LIB_VERSION, [libjpeg API version (62, 70, or 80)])
+if test "x$JPEG_LIB_VERSION" = "x"; then
+  AC_ARG_WITH([jpeg7],
+    AC_HELP_STRING([--with-jpeg7],
+      [Emulate libjpeg v7 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b.)]))
+  AC_ARG_WITH([jpeg8],
+    AC_HELP_STRING([--with-jpeg8],
+      [Emulate libjpeg v8 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b.)]))
+  if test "x${with_jpeg8}" = "xyes"; then
+    JPEG_LIB_VERSION=80
+  else
+    if test "x${with_jpeg7}" = "xyes"; then
+      JPEG_LIB_VERSION=70
+    else
+      JPEG_LIB_VERSION=62
+    fi
+  fi
+fi
+JPEG_LIB_VERSION_DECIMAL=`expr $JPEG_LIB_VERSION / 10`.`expr $JPEG_LIB_VERSION % 10`
+AC_SUBST(JPEG_LIB_VERSION_DECIMAL)
+AC_MSG_RESULT([$JPEG_LIB_VERSION_DECIMAL])
+AC_DEFINE_UNQUOTED(JPEG_LIB_VERSION, [$JPEG_LIB_VERSION],
+  [libjpeg API version])
+
+AC_ARG_VAR(SO_MAJOR_VERSION,
+  [Major version of the libjpeg-turbo shared library (default is determined by the API version)])
+AC_ARG_VAR(SO_MINOR_VERSION,
+  [Minor version of the libjpeg-turbo shared library (default is determined by the API version)])
+if test "x$SO_MAJOR_VERSION" = "x"; then
+  case "$JPEG_LIB_VERSION" in
+    62)  SO_MAJOR_VERSION=$JPEG_LIB_VERSION ;;
+    *)   SO_MAJOR_VERSION=`expr $JPEG_LIB_VERSION / 10` ;;
+  esac
+fi
+if test "x$SO_MINOR_VERSION" = "x"; then
+  case "$JPEG_LIB_VERSION" in
+    80)  SO_MINOR_VERSION=2 ;;
+    *)   SO_MINOR_VERSION=0 ;;
+  esac
+fi
+
+RPM_CONFIG_ARGS=
+
+# Memory source/destination managers
+SO_AGE=0
+MEM_SRCDST_FUNCTIONS=
+if test "x${with_jpeg8}" != "xyes"; then
+  AC_MSG_CHECKING([whether to include in-memory source/destination managers])
+  AC_ARG_WITH([mem-srcdst],
+    AC_HELP_STRING([--without-mem-srcdst],
+      [Do not include in-memory source/destination manager functions when emulating the libjpeg v6b or v7 API/ABI]))
+  if test "x$with_mem_srcdst" != "xno"; then
+    AC_MSG_RESULT(yes)
+    AC_DEFINE([MEM_SRCDST_SUPPORTED], [1],
+      [Support in-memory source/destination managers])
+    SO_AGE=1
+    MEM_SRCDST_FUNCTIONS="global:  jpeg_mem_dest;  jpeg_mem_src;";
+  else
+    AC_MSG_RESULT(no)
+    RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-mem-srcdst"
+  fi
+fi
+
+AC_MSG_CHECKING([libjpeg shared library version])
+AC_MSG_RESULT([$SO_MAJOR_VERSION.$SO_AGE.$SO_MINOR_VERSION])
+LIBTOOL_CURRENT=`expr $SO_MAJOR_VERSION + $SO_AGE`
+AC_SUBST(LIBTOOL_CURRENT)
+AC_SUBST(SO_MAJOR_VERSION)
+AC_SUBST(SO_MINOR_VERSION)
+AC_SUBST(SO_AGE)
+AC_SUBST(MEM_SRCDST_FUNCTIONS)
+
+AC_DEFINE_UNQUOTED(LIBJPEG_TURBO_VERSION, [$VERSION], [libjpeg-turbo version])
+
+VERSION_SCRIPT=yes
+AC_ARG_ENABLE([ld-version-script],
+  AS_HELP_STRING([--disable-ld-version-script],
+    [Disable linker version script for libjpeg-turbo (default is to use linker version script if the linker supports it)]),
+  [VERSION_SCRIPT=$enableval], [])
+
+AC_MSG_CHECKING([whether the linker supports version scripts])
+SAVED_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS -Wl,--version-script,conftest.map"
+cat > conftest.map <<EOF
+VERS_1 {
+  global: *;
+};
+EOF
+AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
+  [VERSION_SCRIPT_FLAG=-Wl,--version-script,;
+   AC_MSG_RESULT([yes (GNU style)])],
+  [])
+if test "x$VERSION_SCRIPT_FLAG" = "x"; then
+  LDFLAGS="$SAVED_LDFLAGS -Wl,-M,conftest.map"
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
+    [VERSION_SCRIPT_FLAG=-Wl,-M,;
+     AC_MSG_RESULT([yes (Sun style)])],
+    [])
+fi
+if test "x$VERSION_SCRIPT_FLAG" = "x"; then
+  VERSION_SCRIPT=no
+  AC_MSG_RESULT(no)
+fi
+LDFLAGS="$SAVED_LDFLAGS"
+
+AC_MSG_CHECKING([whether to use version script when building libjpeg-turbo])
+AC_MSG_RESULT($VERSION_SCRIPT)
+
+AM_CONDITIONAL(VERSION_SCRIPT, test "x$VERSION_SCRIPT" = "xyes")
+AC_SUBST(VERSION_SCRIPT_FLAG)
+
+# Check for non-broken inline under various spellings
+AC_MSG_CHECKING(for inline)
+ljt_cv_inline=""
+AC_TRY_COMPILE(, [} inline __attribute__((always_inline)) int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="inline __attribute__((always_inline))",
+AC_TRY_COMPILE(, [} __inline__ int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="__inline__",
+AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="__inline",
+AC_TRY_COMPILE(, [} inline int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="inline"))))
+AC_MSG_RESULT($ljt_cv_inline)
+AC_DEFINE_UNQUOTED([INLINE],[$ljt_cv_inline],[How to obtain function inlining.])
+
+# Arithmetic coding support
+AC_MSG_CHECKING([whether to include arithmetic encoding support])
+AC_ARG_WITH([arith-enc],
+  AC_HELP_STRING([--without-arith-enc],
+    [Do not include arithmetic encoding support]))
+if test "x$with_12bit" = "xyes"; then
+  with_arith_enc=no
+fi
+if test "x$with_arith_enc" = "xno"; then
+  AC_MSG_RESULT(no)
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-arith-enc"
+else
+  AC_DEFINE([C_ARITH_CODING_SUPPORTED], [1], [Support arithmetic encoding])
+  AC_MSG_RESULT(yes)
+fi
+AM_CONDITIONAL([WITH_ARITH_ENC], [test "x$with_arith_enc" != "xno"])
+
+AC_MSG_CHECKING([whether to include arithmetic decoding support])
+AC_ARG_WITH([arith-dec],
+  AC_HELP_STRING([--without-arith-dec],
+    [Do not include arithmetic decoding support]))
+if test "x$with_12bit" = "xyes"; then
+  with_arith_dec=no
+fi
+if test "x$with_arith_dec" = "xno"; then
+  AC_MSG_RESULT(no)
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-arith-dec"
+else
+  AC_DEFINE([D_ARITH_CODING_SUPPORTED], [1], [Support arithmetic decoding])
+  AC_MSG_RESULT(yes)
+fi
+AM_CONDITIONAL([WITH_ARITH_DEC], [test "x$with_arith_dec" != "xno"])
+
+AM_CONDITIONAL([WITH_ARITH],
+  [test "x$with_arith_dec" != "xno" -o "x$with_arith_enc" != "xno"])
+
+# 12-bit component support
+AC_MSG_CHECKING([whether to use 12-bit samples])
+AC_ARG_WITH([12bit],
+  AC_HELP_STRING([--with-12bit], [Encode/decode JPEG images with 12-bit samples (implies --without-simd --without-turbojpeg --without-arith-dec --without-arith-enc)]))
+if test "x$with_12bit" = "xyes"; then
+  AC_DEFINE([BITS_IN_JSAMPLE], [12], [use 8 or 12])
+  AC_MSG_RESULT(yes)
+else
+  AC_MSG_RESULT(no)
+fi
+AM_CONDITIONAL([WITH_12BIT], [test "x$with_12bit" = "xyes"])
+
+# TurboJPEG support
+AC_MSG_CHECKING([whether to build TurboJPEG C wrapper])
+AC_ARG_WITH([turbojpeg],
+  AC_HELP_STRING([--without-turbojpeg],
+    [Do not include the TurboJPEG wrapper library and associated test programs]))
+if test "x$with_12bit" = "xyes"; then
+  with_turbojpeg=no
+fi
+if test "x$with_turbojpeg" = "xno"; then
+  AC_MSG_RESULT(no)
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-turbojpeg"
+else
+  AC_MSG_RESULT(yes)
+fi
+
+# Java support
+AC_ARG_VAR(JAVAC, [Java compiler command (default: javac)])
+if test "x$JAVAC" = "x"; then
+  JAVAC=javac
+fi
+AC_SUBST(JAVAC)
+AC_ARG_VAR(JAVACFLAGS, [Java compiler flags])
+AC_SUBST(JAVACFLAGS)
+AC_ARG_VAR(JAR, [Java archive command (default: jar)])
+if test "x$JAR" = "x"; then
+  JAR=jar
+fi
+AC_SUBST(JAR)
+AC_ARG_VAR(JAVA, [Java runtime command (default: java)])
+if test "x$JAVA" = "x"; then
+  JAVA=java
+fi
+AC_SUBST(JAVA)
+AC_ARG_VAR(JNI_CFLAGS,
+  [C compiler flags needed to include jni.h (default: -I/System/Library/Frameworks/JavaVM.framework/Headers on OS X, '-I/usr/java/include -I/usr/java/include/solaris' on Solaris, and '-I/usr/java/default/include -I/usr/java/default/include/linux' on Linux)])
+
+AC_MSG_CHECKING([whether to build TurboJPEG Java wrapper])
+AC_ARG_WITH([java],
+  AC_HELP_STRING([--with-java], [Build Java wrapper for the TurboJPEG library]))
+if test "x$with_12bit" = "xyes" -o "x$with_turbojpeg" = "xno"; then
+  with_java=no
+fi
+
+WITH_JAVA=0
+if test "x$with_java" = "xyes"; then
+  AC_MSG_RESULT(yes)
+
+  case $host_os in
+    darwin*)
+      DEFAULT_JNI_CFLAGS=-I/System/Library/Frameworks/JavaVM.framework/Headers
+      ;;
+    solaris*)
+      DEFAULT_JNI_CFLAGS='-I/usr/java/include -I/usr/java/include/solaris'
+      ;;
+    linux*)
+      DEFAULT_JNI_CFLAGS='-I/usr/java/default/include -I/usr/java/default/include/linux'
+      ;;
+  esac
+  if test "x$JNI_CFLAGS" = "x"; then
+    JNI_CFLAGS=$DEFAULT_JNI_CFLAGS
+  fi
+
+  SAVE_CPPFLAGS=${CPPFLAGS}
+  CPPFLAGS="${CPPFLAGS} ${JNI_CFLAGS}"
+  AC_CHECK_HEADERS([jni.h], [DUMMY=1],
+    [AC_MSG_ERROR([Could not find JNI header file])])
+  CPPFLAGS=${SAVE_CPPFLAGS}
+  AC_SUBST(JNI_CFLAGS)
+
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --with-java"
+  JAVA_RPM_CONTENTS_1='%dir %{_datadir}/classes'
+  JAVA_RPM_CONTENTS_2=%{_datadir}/classes/turbojpeg.jar
+  WITH_JAVA=1
+else
+  AC_MSG_RESULT(no)
+fi
+AM_CONDITIONAL([WITH_JAVA], [test "x$with_java" = "xyes"])
+AC_SUBST(WITH_JAVA)
+AC_SUBST(JAVA_RPM_CONTENTS_1)
+AC_SUBST(JAVA_RPM_CONTENTS_2)
+
+# optionally force using gas-preprocessor.pl for compatibility testing
+AC_ARG_WITH([gas-preprocessor],
+  AC_HELP_STRING([--with-gas-preprocessor],
+    [Force using gas-preprocessor.pl on ARM.]))
+if test "x${with_gas_preprocessor}" = "xyes"; then
+  case $host_os in
+    darwin*)
+      CCAS="gas-preprocessor.pl -fix-unreq $CC"
+      ;;
+    *)
+      CCAS="gas-preprocessor.pl -no-fix-unreq $CC"
+      ;;
+  esac
+  AC_SUBST([CCAS])
+fi
+
+# SIMD is optional
+AC_ARG_WITH([simd],
+  AC_HELP_STRING([--without-simd], [Do not include SIMD extensions]))
+if test "x$with_12bit" = "xyes"; then
+  with_simd=no
+fi
+if test "x${with_simd}" != "xno"; then
+  require_simd=no
+  if test "x${with_simd}" = "xyes"; then
+    require_simd=yes
+  fi
+  # Check if we're on a supported CPU
+  AC_MSG_CHECKING([if we have SIMD optimisations for cpu type])
+  case "$host_cpu" in
+    x86_64 | amd64)
+      AC_MSG_RESULT([yes (x86_64)])
+      AC_PROG_NASM
+      simd_arch=x86_64
+      ;;
+    i*86 | x86 | ia32)
+      AC_MSG_RESULT([yes (i386)])
+      AC_PROG_NASM
+      simd_arch=i386
+      ;;
+    arm*)
+      AC_MSG_RESULT([yes (arm)])
+      AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
+      AC_CHECK_COMPATIBLE_ARM_ASSEMBLER_IFELSE(
+        [if test "x$ac_use_gas_preprocessor" = "xyes"; then
+           AC_MSG_RESULT([yes (with gas-preprocessor)])
+         else
+           AC_MSG_RESULT([yes])
+         fi
+         simd_arch=arm],
+        [AC_MSG_RESULT([no])
+         with_simd=no])
+      if test "x${with_simd}" = "xno"; then
+        if test "x${require_simd}" = "xyes"; then
+          AC_MSG_ERROR([SIMD support can't be enabled.])
+        else
+          AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
+        fi
+      fi
+      ;;
+    aarch64*)
+      AC_MSG_RESULT([yes (arm64)])
+      AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
+      AC_CHECK_COMPATIBLE_ARM64_ASSEMBLER_IFELSE(
+        [if test "x$ac_use_gas_preprocessor" = "xyes"; then
+           AC_MSG_RESULT([yes (with gas-preprocessor)])
+         else
+           AC_MSG_RESULT([yes])
+         fi
+         simd_arch=aarch64],
+        [AC_MSG_RESULT([no])
+         with_simd=no])
+      if test "x${with_simd}" = "xno"; then
+        if test "x${require_simd}" = "xyes"; then
+          AC_MSG_ERROR([SIMD support can't be enabled.])
+        else
+          AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
+        fi
+      fi
+      ;;
+    mips*)
+      AC_MSG_RESULT([yes (mips)])
+      AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
+      AC_CHECK_COMPATIBLE_MIPS_ASSEMBLER_IFELSE(
+        [AC_MSG_RESULT([yes])
+         simd_arch=mips],
+        [AC_MSG_RESULT([no])
+         with_simd=no])
+      if test "x${with_simd}" = "xno"; then
+        if test "x${require_simd}" = "xyes"; then
+          AC_MSG_ERROR([SIMD support can't be enabled.])
+        else
+          AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
+        fi
+      fi
+      ;;
+    *)
+      AC_MSG_RESULT([no ("$host_cpu")])
+      with_simd=no;
+      if test "x${require_simd}" = "xyes"; then
+        AC_MSG_ERROR([SIMD support not available for this CPU.])
+      else
+        AC_MSG_WARN([SIMD support not available for this CPU.  Performance will suffer.])
+      fi
+      ;;
+  esac
+
+  if test "x${with_simd}" != "xno"; then
+    AC_DEFINE([WITH_SIMD], [1], [Use accelerated SIMD routines.])
+  fi
+else
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-simd"
+fi
+
+AM_CONDITIONAL([WITH_SIMD], [test "x$with_simd" != "xno"])
+AM_CONDITIONAL([WITH_SSE_FLOAT_DCT], [test "x$simd_arch" = "xx86_64" -o "x$simd_arch" = "xi386"])
+AM_CONDITIONAL([SIMD_I386], [test "x$simd_arch" = "xi386"])
+AM_CONDITIONAL([SIMD_X86_64], [test "x$simd_arch" = "xx86_64"])
+AM_CONDITIONAL([SIMD_ARM], [test "x$simd_arch" = "xarm"])
+AM_CONDITIONAL([SIMD_ARM_64], [test "x$simd_arch" = "xaarch64"])
+AM_CONDITIONAL([SIMD_MIPS], [test "x$simd_arch" = "xmips"])
+AM_CONDITIONAL([X86_64], [test "x$host_cpu" = "xx86_64" -o "x$host_cpu" = "xamd64"])
+AM_CONDITIONAL([WITH_TURBOJPEG], [test "x$with_turbojpeg" != "xno"])
+
+AC_ARG_VAR(PKGNAME, [distribution package name (default: libjpeg-turbo)])
+if test "x$PKGNAME" = "x"; then
+  PKGNAME=$PACKAGE_NAME
+fi
+AC_SUBST(PKGNAME)
+
+case "$host_cpu" in
+  x86_64)
+    RPMARCH=x86_64
+    DEBARCH=amd64
+    ;;
+  i*86 | x86 | ia32)
+    RPMARCH=i386
+    DEBARCH=i386
+    ;;
+  *)
+    RPMARCH=`uname -m`
+    DEBARCH=$RPMARCH
+    ;;
+esac
+
+if test "${docdir}" = ""; then
+  docdir=${datadir}/doc
+  AC_SUBST(docdir)
+fi
+
+AC_SUBST(RPMARCH)
+AC_SUBST(RPM_CONFIG_ARGS)
+AC_SUBST(DEBARCH)
+AC_SUBST(BUILD)
+AC_DEFINE_UNQUOTED([BUILD], "$BUILD", [libjpeg-turbo build number])
+
+# NOTE: autoheader automatically modifies the input file of the first
+# invocation of AC_CONFIG_HEADERS, so we put config.h first to prevent
+# jconfig.h.in from being clobbered.  config.h is used only internally, whereas
+# jconfig.h contains macros that are relevant to external programs (macros that
+# specify which features were built into the library.)
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_HEADERS([jconfig.h])
+AC_CONFIG_HEADERS([jconfigint.h])
+AC_CONFIG_FILES([pkgscripts/libjpeg-turbo.spec.tmpl:release/libjpeg-turbo.spec.in])
+AC_CONFIG_FILES([pkgscripts/makecygwinpkg.tmpl:release/makecygwinpkg.in])
+AC_CONFIG_FILES([pkgscripts/makedpkg.tmpl:release/makedpkg.in])
+AC_CONFIG_FILES([pkgscripts/makemacpkg.tmpl:release/makemacpkg.in])
+AC_CONFIG_FILES([pkgscripts/uninstall.tmpl:release/uninstall.in])
+if test "x$with_turbojpeg" != "xno"; then
+  AC_CONFIG_FILES([tjbenchtest])
+fi
+if test "x$with_java" = "xyes"; then
+  AC_CONFIG_FILES([tjbenchtest.java])
+  AC_CONFIG_FILES([tjexampletest])
+fi
+AC_CONFIG_FILES([libjpeg.map])
+AC_CONFIG_FILES([Makefile simd/Makefile])
+AC_CONFIG_FILES([java/Makefile])
+AC_CONFIG_FILES([md5/Makefile])
+AC_OUTPUT

djpeg.1

@@ -1,4 +1,4 @@
-.TH DJPEG 1 "12 December 1994"
+.TH DJPEG 1 "21 November 2014"
 .SH NAME
 djpeg \- decompress a JPEG file to an image file
 .SH SYNOPSIS
@@ -26,9 +26,9 @@ or
 .BR \-gr .
 Most of the "basic" switches can be abbreviated to as little as one letter.
 Upper and lower case are equivalent (thus
-.B \-GIF
+.B \-BMP
 is the same as
-.BR \-gif ).
+.BR \-bmp ).
 British spellings are also accepted (e.g.,
 .BR \-greyscale ),
 though for brevity these are not mentioned below.
@@ -55,15 +55,19 @@ default options are chosen for highest quality output.)  Currently, this is
 equivalent to \fB\-dct fast \-nosmooth \-onepass \-dither ordered\fR.
 .TP
 .B \-grayscale
-Force gray-scale output even if JPEG file is color.  Useful for viewing on
+Force grayscale output even if JPEG file is color.  Useful for viewing on
 monochrome displays; also,
 .B djpeg
 runs noticeably faster in this mode.
 .TP
+.B \-rgb
+Force RGB output even if JPEG file is grayscale.
+.TP
 .BI \-scale " M/N"
 Scale the output image by a factor M/N.  Currently the scale factor must be
-1/1, 1/2, 1/4, or 1/8.  Scaling is handy if the image is larger than your
+M/8, where M is an integer between 1 and 16 inclusive, or any reduced fraction
-screen; also,
+thereof (such as 1/2, 3/4, etc.)  Scaling is handy if the image is larger than
+your screen; also,
 .B djpeg
 runs much faster when scaling down the output.
 .TP
@@ -73,7 +77,7 @@ emitted if
 .B \-colors
 or
 .B \-grayscale
-is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color
+is specified, or if the JPEG file is grayscale; otherwise, 24-bit full-color
 format is emitted.
 .TP
 .B \-gif
@@ -87,12 +91,12 @@ emitted if
 .B \-colors
 or
 .B \-grayscale
-is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color
+is specified, or if the JPEG file is grayscale; otherwise, 24-bit full-color
 format is emitted.
 .TP
 .B \-pnm
 Select PBMPLUS (PPM/PGM) output format (this is the default format).
-PGM is emitted if the JPEG file is gray-scale or if
+PGM is emitted if the JPEG file is grayscale or if
 .B \-grayscale
 is specified; otherwise PPM is emitted.
 .TP
@@ -100,8 +104,8 @@ is specified; otherwise PPM is emitted.
 Select RLE output format.  (Requires URT library.)
 .TP
 .B \-targa
-Select Targa output format.  Gray-scale format is emitted if the JPEG file is
+Select Targa output format.  Grayscale format is emitted if the JPEG file is
-gray-scale or if
+grayscale or if
 .B \-grayscale
 is specified; otherwise, colormapped format is emitted if
 .B \-colors
@@ -114,14 +118,28 @@ Use integer DCT method (default).
 .TP
 .B \-dct fast
 Use fast integer DCT (less accurate).
+In libjpeg-turbo, the fast method is generally about 5-15% faster than the int
+method when using the x86/x86-64 SIMD extensions (results may vary with other
+SIMD implementations, or when using libjpeg-turbo without SIMD extensions.)  If
+the JPEG image was compressed using a quality level of 85 or below, then there
+should be little or no perceptible difference between the two algorithms.  When
+decompressing images that were compressed using quality levels above 85,
+however, the difference between the fast and int methods becomes more
+pronounced.  With images compressed using quality=97, for instance, the fast
+method incurs generally about a 4-6 dB loss (in PSNR) relative to the int
+method, but this can be larger for some images.  If you can avoid it, do not
+use the fast method when decompressing images that were compressed using
+quality levels above 97.  The algorithm often degenerates for such images and
+can actually produce a more lossy output image than if the JPEG image had been
+compressed using lower quality levels.
 .TP
 .B \-dct float
 Use floating-point DCT method.
-The float method is very slightly more accurate than the int method, but is
+The float method is mainly a legacy feature.  It does not produce significantly
-much slower unless your machine has very fast floating-point hardware.  Also
+more accurate results than the int method, and it is much slower.  The float
-note that results of the floating-point method may vary slightly across
+method may also give different results on different machines due to varying
-machines, while the integer methods should give the same results everywhere.
+roundoff behavior, whereas the integer methods should give the same results on
-The fast integer method is much less accurate than the other two.
+all machines.
 .TP
 .B \-dither fs
 Use Floyd-Steinberg dithering in color quantization.
@@ -159,7 +177,7 @@ faster and needs less memory, but it produces a lower-quality image.
 is ignored unless you also say
 .B \-colors
 .IR N .
-Also, the one-pass method is always used for gray-scale output (the two-pass
+Also, the one-pass method is always used for grayscale output (the two-pass
 method is no improvement then).
 .TP
 .BI \-maxmemory " N"
@@ -172,6 +190,10 @@ selects 4000000 bytes.  If more space is needed, temporary files will be used.
 .BI \-outfile " name"
 Send output image to the named file, not to standard output.
 .TP
+.BI \-memsrc
+Load input file into memory before decompressing.  This feature was implemented
+mainly as a way of testing the in-memory source manager (jpeg_mem_src().)
+.TP
 .B \-verbose
 Enable debug printout.  More
 .BR \-v 's
@@ -180,15 +202,18 @@ give more output.  Also, version information is printed at startup.
 .B \-debug
 Same as
 .BR \-verbose .
+.TP
+.B \-version
+Print version information and exit.
 .SH EXAMPLES
 .LP
-This example decompresses the JPEG file foo.jpg, automatically quantizes to
+This example decompresses the JPEG file foo.jpg, quantizes it to
-256 colors, and saves the output in GIF format in foo.gif:
+256 colors, and saves the output in 8-bit BMP format in foo.bmp:
 .IP
-.B djpeg \-gif
+.B djpeg \-colors 256 \-bmp
 .I foo.jpg
 .B >
-.I foo.gif
+.I foo.bmp
 .SH HINTS
 To get a quick preview of an image, use the
 .B \-grayscale
@@ -231,6 +256,7 @@ itself is overridden by an explicit
 .BR \-maxmemory .
 .SH SEE ALSO
 .BR cjpeg (1),
+.BR jpegtran (1),
 .BR rdjpgcom (1),
 .BR wrjpgcom (1)
 .br
@@ -241,7 +267,12 @@ Wallace, Gregory K.  "The JPEG Still Picture Compression Standard",
 Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44.
 .SH AUTHOR
 Independent JPEG Group
-.SH BUGS
-Arithmetic coding is not supported for legal reasons.
 .PP
-Still not as fast as we'd like.
+This file was modified by The libjpeg-turbo Project to include only information
+relevant to libjpeg-turbo, to wordsmith certain sections, and to describe
+features not present in libjpeg.
+.SH BUGS
+To avoid the Unisys LZW patent,
+.B djpeg
+produces uncompressed GIF files.  These are larger than they should be, but
+are readable by standard GIF decoders.

djpeg.c

@@ -1,8 +1,10 @@
 /*
  * djpeg.c
  *
- * Copyright (C) 1991-1994, Thomas G. Lane.
+ * This file was part of the Independent JPEG Group's software:
- * This file is part of the Independent JPEG Group's software.
+ * Copyright (C) 1991-1997, Thomas G. Lane.
+ * libjpeg-turbo Modifications:
+ * Copyright (C) 2010-2011, 2013-2014, D. R. Commander.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains a command-line user interface for the JPEG decompressor.
@@ -10,8 +12,8 @@
  *
  * Two different command line styles are permitted, depending on the
  * compile-time switch TWO_FILE_COMMANDLINE:
- *	djpeg [options]  inputfile outputfile
+ *      djpeg [options]  inputfile outputfile
- *	djpeg [options]  [inputfile]
+ *      djpeg [options]  [inputfile]
  * In the second style, output is always to standard output, which you'd
  * normally redirect to a file or pipe to some other program.  Input is
  * either from a named file or from standard input (typically redirected).
@@ -19,62 +21,30 @@
  * don't support pipes.  Also, you MUST use the first style if your system
  * doesn't do binary I/O to stdin/stdout.
  * To simplify script writing, the "-outfile" switch is provided.  The syntax
- *	djpeg [options]  -outfile outputfile  inputfile
+ *      djpeg [options]  -outfile outputfile  inputfile
  * works regardless of which command line style is used.
  */
 
-#include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
+#include "cdjpeg.h"             /* Common decls for cjpeg/djpeg applications */
-#include "jversion.h"		/* for version message */
+#include "jversion.h"           /* for version message */
+#include "jconfigint.h"
 
-#include <ctype.h>		/* to declare isupper(),tolower(),isprint() */
+#include <ctype.h>              /* to declare isprint() */
-#ifdef NEED_SIGNAL_CATCHER
-#include <signal.h>		/* to declare signal() */
-#endif
-#ifdef USE_SETMODE
-#include <fcntl.h>		/* to declare setmode()'s parameter macros */
-/* If you have setmode() but not <io.h>, just delete this line: */
-#include <io.h>			/* to declare setmode() */
-#endif
 
-#ifdef USE_CCOMMAND		/* command-line reader for Macintosh */
+#ifdef USE_CCOMMAND             /* command-line reader for Macintosh */
 #ifdef __MWERKS__
-#include <SIOUX.h>              /* Metrowerks declares it here */
+#include <SIOUX.h>              /* Metrowerks needs this */
+#include <console.h>            /* ... and this */
 #endif
 #ifdef THINK_C
-#include <console.h>		/* Think declares it here */
+#include <console.h>            /* Think declares it here */
-#endif
-#endif
-
-#ifdef DONT_USE_B_MODE		/* define mode parameters for fopen() */
-#define READ_BINARY	"r"
-#define WRITE_BINARY	"w"
-#else
-#define READ_BINARY	"rb"
-#define WRITE_BINARY	"wb"
-#endif
-
-#ifndef EXIT_FAILURE		/* define exit() codes if not provided */
-#define EXIT_FAILURE  1
-#endif
-#ifndef EXIT_SUCCESS
-#ifdef VMS
-#define EXIT_SUCCESS  1		/* VMS is very nonstandard */
-#else
-#define EXIT_SUCCESS  0
-#endif
-#endif
-#ifndef EXIT_WARNING
-#ifdef VMS
-#define EXIT_WARNING  1		/* VMS is very nonstandard */
-#else
-#define EXIT_WARNING  2
 #endif
 #endif
 
 
 /* Create the add-on message string table. */
 
-#define JMESSAGE(code,string)	string ,
+#define JMESSAGE(code,string)   string ,
 
 static const char * const cdjpeg_message_table[] = {
 #include "cderror.h"
@@ -90,75 +60,22 @@ static const char * const cdjpeg_message_table[] = {
  */
 
 typedef enum {
-	FMT_BMP,		/* BMP format (Windows flavor) */
+        FMT_BMP,                /* BMP format (Windows flavor) */
-	FMT_GIF,		/* GIF format */
+        FMT_GIF,                /* GIF format */
-	FMT_OS2,		/* BMP format (OS/2 flavor) */
+        FMT_OS2,                /* BMP format (OS/2 flavor) */
-	FMT_PPM,		/* PPM/PGM (PBMPLUS formats) */
+        FMT_PPM,                /* PPM/PGM (PBMPLUS formats) */
-	FMT_RLE,		/* RLE format */
+        FMT_RLE,                /* RLE format */
-	FMT_TARGA,		/* Targa format */
+        FMT_TARGA,              /* Targa format */
-	FMT_TIFF		/* TIFF format */
+        FMT_TIFF                /* TIFF format */
 } IMAGE_FORMATS;
 
-#ifndef DEFAULT_FMT		/* so can override from CFLAGS in Makefile */
+#ifndef DEFAULT_FMT             /* so can override from CFLAGS in Makefile */
-#define DEFAULT_FMT	FMT_PPM
+#define DEFAULT_FMT     FMT_PPM
 #endif
 
 static IMAGE_FORMATS requested_fmt;
 
 
-/*
- * Signal catcher to ensure that temporary files are removed before aborting.
- * NB: for Amiga Manx C this is actually a global routine named _abort();
- * we put "#define signal_catcher _abort" in jconfig.h.  Talk about bogus...
- */
-
-#ifdef NEED_SIGNAL_CATCHER
-
-static j_common_ptr sig_cinfo;
-
-GLOBAL void
-signal_catcher (int signum)
-{
-  if (sig_cinfo != NULL) {
-    if (sig_cinfo->err != NULL) /* turn off trace output */
-      sig_cinfo->err->trace_level = 0;
-    jpeg_destroy(sig_cinfo);	/* clean up memory allocation & temp files */
-  }
-  exit(EXIT_FAILURE);
-}
-
-#endif
-
-
-/*
- * Optional routine to display a percent-done figure on stderr.
- */
-
-#ifdef PROGRESS_REPORT
-
-METHODDEF void
-progress_monitor (j_common_ptr cinfo)
-{
-  cd_progress_ptr prog = (cd_progress_ptr) cinfo->progress;
-  int total_passes = prog->pub.total_passes + prog->total_extra_passes;
-  int percent_done = (int) (prog->pub.pass_counter*100L/prog->pub.pass_limit);
-
-  if (percent_done != prog->percent_done) {
-    prog->percent_done = percent_done;
-    if (total_passes > 1) {
-      fprintf(stderr, "\rPass %d/%d: %3d%% ",
-	      prog->pub.completed_passes + prog->completed_extra_passes + 1,
-	      total_passes, percent_done);
-    } else {
-      fprintf(stderr, "\r %3d%% ", percent_done);
-    }
-    fflush(stderr);
-  }
-}
-
-#endif
-
-
 /*
  * Argument-parsing code.
  * The switch parser is designed to be useful with DOS-style command line
@@ -168,11 +85,13 @@ progress_monitor (j_common_ptr cinfo)
  */
 
 
-static const char * progname;	/* program name for error messages */
+static const char * progname;   /* program name for error messages */
-static char * outfilename;	/* for -outfile switch */
+static char * outfilename;      /* for -outfile switch */
+boolean memsrc;  /* for -memsrc switch */
+#define INPUT_BUF_SIZE  4096
 
 
-LOCAL void
+LOCAL(void)
 usage (void)
 /* complain about bad command line */
 {
@@ -187,45 +106,47 @@ usage (void)
   fprintf(stderr, "  -colors N      Reduce image to no more than N colors\n");
   fprintf(stderr, "  -fast          Fast, low-quality processing\n");
   fprintf(stderr, "  -grayscale     Force grayscale output\n");
+  fprintf(stderr, "  -rgb           Force RGB output\n");
+  fprintf(stderr, "  -rgb565        Force RGB565 output\n");
 #ifdef IDCT_SCALING_SUPPORTED
   fprintf(stderr, "  -scale M/N     Scale output image by fraction M/N, eg, 1/8\n");
 #endif
 #ifdef BMP_SUPPORTED
   fprintf(stderr, "  -bmp           Select BMP output format (Windows style)%s\n",
-	  (DEFAULT_FMT == FMT_BMP ? " (default)" : ""));
+          (DEFAULT_FMT == FMT_BMP ? " (default)" : ""));
 #endif
 #ifdef GIF_SUPPORTED
   fprintf(stderr, "  -gif           Select GIF output format%s\n",
-	  (DEFAULT_FMT == FMT_GIF ? " (default)" : ""));
+          (DEFAULT_FMT == FMT_GIF ? " (default)" : ""));
 #endif
 #ifdef BMP_SUPPORTED
   fprintf(stderr, "  -os2           Select BMP output format (OS/2 style)%s\n",
-	  (DEFAULT_FMT == FMT_OS2 ? " (default)" : ""));
+          (DEFAULT_FMT == FMT_OS2 ? " (default)" : ""));
 #endif
 #ifdef PPM_SUPPORTED
   fprintf(stderr, "  -pnm           Select PBMPLUS (PPM/PGM) output format%s\n",
-	  (DEFAULT_FMT == FMT_PPM ? " (default)" : ""));
+          (DEFAULT_FMT == FMT_PPM ? " (default)" : ""));
 #endif
 #ifdef RLE_SUPPORTED
   fprintf(stderr, "  -rle           Select Utah RLE output format%s\n",
-	  (DEFAULT_FMT == FMT_RLE ? " (default)" : ""));
+          (DEFAULT_FMT == FMT_RLE ? " (default)" : ""));
 #endif
 #ifdef TARGA_SUPPORTED
   fprintf(stderr, "  -targa         Select Targa output format%s\n",
-	  (DEFAULT_FMT == FMT_TARGA ? " (default)" : ""));
+          (DEFAULT_FMT == FMT_TARGA ? " (default)" : ""));
 #endif
   fprintf(stderr, "Switches for advanced users:\n");
 #ifdef DCT_ISLOW_SUPPORTED
   fprintf(stderr, "  -dct int       Use integer DCT method%s\n",
-	  (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
+          (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
 #endif
 #ifdef DCT_IFAST_SUPPORTED
   fprintf(stderr, "  -dct fast      Use fast integer DCT (less accurate)%s\n",
-	  (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
+          (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
 #endif
 #ifdef DCT_FLOAT_SUPPORTED
   fprintf(stderr, "  -dct float     Use floating-point DCT method%s\n",
-	  (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
+          (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
 #endif
   fprintf(stderr, "  -dither fs     Use F-S dithering (default)\n");
   fprintf(stderr, "  -dither none   Don't use dithering in quantization\n");
@@ -239,39 +160,19 @@ usage (void)
 #endif
   fprintf(stderr, "  -maxmemory N   Maximum memory to use (in kbytes)\n");
   fprintf(stderr, "  -outfile name  Specify name for output file\n");
+#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
+  fprintf(stderr, "  -memsrc        Load input file into memory before decompressing\n");
+#endif
+
   fprintf(stderr, "  -verbose  or  -debug   Emit debug output\n");
+  fprintf(stderr, "  -version       Print version information and exit\n");
   exit(EXIT_FAILURE);
 }
 
 
-LOCAL boolean
+LOCAL(int)
-keymatch (char * arg, const char * keyword, int minchars)
-/* Case-insensitive matching of (possibly abbreviated) keyword switches. */
-/* keyword is the constant keyword (must be lower case already), */
-/* minchars is length of minimum legal abbreviation. */
-{
-  register int ca, ck;
-  register int nmatched = 0;
-
-  while ((ca = *arg++) != '\0') {
-    if ((ck = *keyword++) == '\0')
-      return FALSE;		/* arg longer than keyword, no good */
-    if (isupper(ca))		/* force arg to lcase (assume ck is already) */
-      ca = tolower(ca);
-    if (ca != ck)
-      return FALSE;		/* no good */
-    nmatched++;			/* count matched characters */
-  }
-  /* reached end of argument; fail if it's too short for unique abbrev */
-  if (nmatched < minchars)
-    return FALSE;
-  return TRUE;			/* A-OK */
-}
-
-
-LOCAL int
 parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
-		int last_file_arg_seen, boolean for_real)
+                int last_file_arg_seen, boolean for_real)
 /* Parse optional switches.
  * Returns argv[] index of first file-name argument (== argc if none).
  * Any file names with indexes <= last_file_arg_seen are ignored;
@@ -285,8 +186,9 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
   char * arg;
 
   /* Set up default JPEG parameters. */
-  requested_fmt = DEFAULT_FMT;	/* set default output file format */
+  requested_fmt = DEFAULT_FMT;  /* set default output file format */
   outfilename = NULL;
+  memsrc = FALSE;
   cinfo->err->trace_level = 0;
 
   /* Scan command line options, adjust parameters */
@@ -296,54 +198,54 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
     if (*arg != '-') {
       /* Not a switch, must be a file name argument */
       if (argn <= last_file_arg_seen) {
-	outfilename = NULL;	/* -outfile applies to just one input file */
+        outfilename = NULL;     /* -outfile applies to just one input file */
-	continue;		/* ignore this name if previously processed */
+        continue;               /* ignore this name if previously processed */
       }
-      break;			/* else done parsing switches */
+      break;                    /* else done parsing switches */
     }
-    arg++;			/* advance past switch marker character */
+    arg++;                      /* advance past switch marker character */
 
     if (keymatch(arg, "bmp", 1)) {
       /* BMP output format. */
       requested_fmt = FMT_BMP;
 
     } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) ||
-	       keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) {
+               keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) {
       /* Do color quantization. */
       int val;
 
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (sscanf(argv[argn], "%d", &val) != 1)
-	usage();
+        usage();
       cinfo->desired_number_of_colors = val;
       cinfo->quantize_colors = TRUE;
 
     } else if (keymatch(arg, "dct", 2)) {
       /* Select IDCT algorithm. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (keymatch(argv[argn], "int", 1)) {
-	cinfo->dct_method = JDCT_ISLOW;
+        cinfo->dct_method = JDCT_ISLOW;
       } else if (keymatch(argv[argn], "fast", 2)) {
-	cinfo->dct_method = JDCT_IFAST;
+        cinfo->dct_method = JDCT_IFAST;
       } else if (keymatch(argv[argn], "float", 2)) {
-	cinfo->dct_method = JDCT_FLOAT;
+        cinfo->dct_method = JDCT_FLOAT;
       } else
-	usage();
+        usage();
 
     } else if (keymatch(arg, "dither", 2)) {
       /* Select dithering algorithm. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (keymatch(argv[argn], "fs", 2)) {
-	cinfo->dither_mode = JDITHER_FS;
+        cinfo->dither_mode = JDITHER_FS;
       } else if (keymatch(argv[argn], "none", 2)) {
-	cinfo->dither_mode = JDITHER_NONE;
+        cinfo->dither_mode = JDITHER_NONE;
       } else if (keymatch(argv[argn], "ordered", 2)) {
-	cinfo->dither_mode = JDITHER_ORDERED;
+        cinfo->dither_mode = JDITHER_ORDERED;
       } else
-	usage();
+        usage();
 
     } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
       /* Enable debug printouts. */
@@ -351,18 +253,26 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
       static boolean printed_version = FALSE;
 
       if (! printed_version) {
-	fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n",
+        fprintf(stderr, "%s version %s (build %s)\n",
-		JVERSION, JCOPYRIGHT);
+                PACKAGE_NAME, VERSION, BUILD);
-	printed_version = TRUE;
+        fprintf(stderr, "%s\n\n", JCOPYRIGHT);
+        fprintf(stderr, "Emulating The Independent JPEG Group's software, version %s\n\n",
+                JVERSION);
+        printed_version = TRUE;
       }
       cinfo->err->trace_level++;
 
+    } else if (keymatch(arg, "version", 4)) {
+      fprintf(stderr, "%s version %s (build %s)\n",
+              PACKAGE_NAME, VERSION, BUILD);
+      exit(EXIT_SUCCESS);
+
     } else if (keymatch(arg, "fast", 1)) {
       /* Select recommended processing options for quick-and-dirty output. */
       cinfo->two_pass_quantize = FALSE;
       cinfo->dither_mode = JDITHER_ORDERED;
       if (! cinfo->quantize_colors) /* don't override an earlier -colors */
-	cinfo->desired_number_of_colors = 216;
+        cinfo->desired_number_of_colors = 216;
       cinfo->dct_method = JDCT_FASTEST;
       cinfo->do_fancy_upsampling = FALSE;
 
@@ -374,23 +284,31 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
       /* Force monochrome output. */
       cinfo->out_color_space = JCS_GRAYSCALE;
 
+    } else if (keymatch(arg, "rgb", 2)) {
+      /* Force RGB output. */
+      cinfo->out_color_space = JCS_RGB;
+
+    } else if (keymatch(arg, "rgb565", 2)) {
+      /* Force RGB565 output. */
+      cinfo->out_color_space = JCS_RGB565;
+
     } else if (keymatch(arg, "map", 3)) {
       /* Quantize to a color map taken from an input file. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
-      if (for_real) {		/* too expensive to do twice! */
+      if (for_real) {           /* too expensive to do twice! */
-#ifdef QUANT_2PASS_SUPPORTED	/* otherwise can't quantize to supplied map */
+#ifdef QUANT_2PASS_SUPPORTED    /* otherwise can't quantize to supplied map */
-	FILE * mapfile;
+        FILE * mapfile;
 
-	if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) {
+        if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) {
-	  fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);
+          fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);
-	  exit(EXIT_FAILURE);
+          exit(EXIT_FAILURE);
-	}
+        }
-	read_color_map(cinfo, mapfile);
+        read_color_map(cinfo, mapfile);
-	fclose(mapfile);
+        fclose(mapfile);
-	cinfo->quantize_colors = TRUE;
+        cinfo->quantize_colors = TRUE;
 #else
-	ERREXIT(cinfo, JERR_NOT_COMPILED);
+        ERREXIT(cinfo, JERR_NOT_COMPILED);
 #endif
       }
 
@@ -399,12 +317,12 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
       long lval;
       char ch = 'x';
 
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
-	usage();
+        usage();
       if (ch == 'm' || ch == 'M')
-	lval *= 1000L;
+        lval *= 1000L;
       cinfo->mem->max_memory_to_use = lval * 1000L;
 
     } else if (keymatch(arg, "nosmooth", 3)) {
@@ -421,9 +339,19 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
 
     } else if (keymatch(arg, "outfile", 4)) {
       /* Set output file name. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
-      outfilename = argv[argn];	/* save it away for later use */
+      outfilename = argv[argn]; /* save it away for later use */
+
+    } else if (keymatch(arg, "memsrc", 2)) {
+      /* Use in-memory source manager */
+#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
+      memsrc = TRUE;
+#else
+      fprintf(stderr, "%s: sorry, in-memory source manager was not compiled in\n",
+              progname);
+      exit(EXIT_FAILURE);
+#endif
 
     } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) {
       /* PPM/PGM output format. */
@@ -435,33 +363,33 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
 
     } else if (keymatch(arg, "scale", 1)) {
       /* Scale the output image by a fraction M/N. */
-      if (++argn >= argc)	/* advance to next argument */
+      if (++argn >= argc)       /* advance to next argument */
-	usage();
+        usage();
       if (sscanf(argv[argn], "%d/%d",
-		 &cinfo->scale_num, &cinfo->scale_denom) != 2)
+                 &cinfo->scale_num, &cinfo->scale_denom) != 2)
-	usage();
+        usage();
 
     } else if (keymatch(arg, "targa", 1)) {
       /* Targa output format. */
       requested_fmt = FMT_TARGA;
 
     } else {
-      usage();			/* bogus switch */
+      usage();                  /* bogus switch */
     }
   }
 
-  return argn;			/* return index of next arg (file name) */
+  return argn;                  /* return index of next arg (file name) */
 }
 
 
 /*
- * Marker processor for COM markers.
+ * Marker processor for COM and interesting APPn markers.
  * This replaces the library's built-in processor, which just skips the marker.
- * We want to print out the marker as text, if possible.
+ * We want to print out the marker as text, to the extent possible.
  * Note this code relies on a non-suspending data source.
  */
 
-LOCAL unsigned int
+LOCAL(unsigned int)
 jpeg_getc (j_decompress_ptr cinfo)
 /* Read next byte */
 {
@@ -476,8 +404,8 @@ jpeg_getc (j_decompress_ptr cinfo)
 }
 
 
-METHODDEF boolean
+METHODDEF(boolean)
-COM_handler (j_decompress_ptr cinfo)
+print_text_marker (j_decompress_ptr cinfo)
 {
   boolean traceit = (cinfo->err->trace_level >= 1);
   INT32 length;
@@ -486,10 +414,15 @@ COM_handler (j_decompress_ptr cinfo)
 
   length = jpeg_getc(cinfo) << 8;
   length += jpeg_getc(cinfo);
-  length -= 2;			/* discount the length word itself */
+  length -= 2;                  /* discount the length word itself */
 
-  if (traceit)
+  if (traceit) {
-    fprintf(stderr, "Comment, length %ld:\n", (long) length);
+    if (cinfo->unread_marker == JPEG_COM)
+      fprintf(stderr, "Comment, length %ld:\n", (long) length);
+    else                        /* assume it is an APPn otherwise */
+      fprintf(stderr, "APP%d, length %ld:\n",
+              cinfo->unread_marker - JPEG_APP0, (long) length);
+  }
 
   while (--length >= 0) {
     ch = jpeg_getc(cinfo);
@@ -500,16 +433,16 @@ COM_handler (j_decompress_ptr cinfo)
        * Newlines in CR, CR/LF, or LF form will be printed as one newline.
        */
       if (ch == '\r') {
-	fprintf(stderr, "\n");
+        fprintf(stderr, "\n");
       } else if (ch == '\n') {
-	if (lastch != '\r')
+        if (lastch != '\r')
-	  fprintf(stderr, "\n");
+          fprintf(stderr, "\n");
       } else if (ch == '\\') {
-	fprintf(stderr, "\\\\");
+        fprintf(stderr, "\\\\");
       } else if (isprint(ch)) {
-	putc(ch, stderr);
+        putc(ch, stderr);
       } else {
-	fprintf(stderr, "\\%03o", ch);
+        fprintf(stderr, "\\%03o", ch);
       }
       lastch = ch;
     }
@@ -526,7 +459,7 @@ COM_handler (j_decompress_ptr cinfo)
  * The main program.
  */
 
-GLOBAL int
+int
 main (int argc, char **argv)
 {
   struct jpeg_decompress_struct cinfo;
@@ -538,6 +471,8 @@ main (int argc, char **argv)
   djpeg_dest_ptr dest_mgr = NULL;
   FILE * input_file;
   FILE * output_file;
+  unsigned char *inbuffer = NULL;
+  unsigned long insize = 0;
   JDIMENSION num_scanlines;
 
   /* On Mac, fetch a command line. */
@@ -547,7 +482,7 @@ main (int argc, char **argv)
 
   progname = argv[0];
   if (progname == NULL || progname[0] == 0)
-    progname = "djpeg";		/* in case C library doesn't provide it */
+    progname = "djpeg";         /* in case C library doesn't provide it */
 
   /* Initialize the JPEG decompression object with default error handling. */
   cinfo.err = jpeg_std_error(&jerr);
@@ -556,17 +491,15 @@ main (int argc, char **argv)
   jerr.addon_message_table = cdjpeg_message_table;
   jerr.first_addon_message = JMSG_FIRSTADDONCODE;
   jerr.last_addon_message = JMSG_LASTADDONCODE;
-  /* Insert custom COM marker processor. */
-  jpeg_set_marker_processor(&cinfo, JPEG_COM, COM_handler);
 
-  /* Now safe to enable signal catcher. */
+  /* Insert custom marker processor for COM and APP12.
-#ifdef NEED_SIGNAL_CATCHER
+   * APP12 is used by some digital camera makers for textual info,
-  sig_cinfo = (j_common_ptr) &cinfo;
+   * so we provide the ability to display it as text.
-  signal(SIGINT, signal_catcher);
+   * If you like, additional APPn marker types can be selected for display,
-#ifdef SIGTERM			/* not all systems have SIGTERM */
+   * but don't try to override APP0 or APP14 this way (see libjpeg.txt).
-  signal(SIGTERM, signal_catcher);
+   */
-#endif
+  jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker);
-#endif
+  jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker);
 
   /* Scan command line to find file names. */
   /* It is convenient to use just one switch-parsing routine, but the switch
@@ -583,14 +516,14 @@ main (int argc, char **argv)
   if (outfilename == NULL) {
     if (file_index != argc-2) {
       fprintf(stderr, "%s: must name one input and one output file\n",
-	      progname);
+              progname);
       usage();
     }
     outfilename = argv[file_index+1];
   } else {
     if (file_index != argc-1) {
       fprintf(stderr, "%s: must name one input and one output file\n",
-	      progname);
+              progname);
       usage();
     }
   }
@@ -610,17 +543,7 @@ main (int argc, char **argv)
     }
   } else {
     /* default input file is stdin */
-#ifdef USE_SETMODE		/* need to hack file mode? */
+    input_file = read_stdin();
-    setmode(fileno(stdin), O_BINARY);
-#endif
-#ifdef USE_FDOPEN		/* need to re-open in binary mode? */
-    if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) {
-      fprintf(stderr, "%s: can't open stdin\n", progname);
-      exit(EXIT_FAILURE);
-    }
-#else
-    input_file = stdin;
-#endif
   }
 
   /* Open the output file. */
@@ -631,32 +554,38 @@ main (int argc, char **argv)
     }
   } else {
     /* default output file is stdout */
-#ifdef USE_SETMODE		/* need to hack file mode? */
+    output_file = write_stdout();
-    setmode(fileno(stdout), O_BINARY);
-#endif
-#ifdef USE_FDOPEN		/* need to re-open in binary mode? */
-    if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) {
-      fprintf(stderr, "%s: can't open stdout\n", progname);
-      exit(EXIT_FAILURE);
-    }
-#else
-    output_file = stdout;
-#endif
   }
 
 #ifdef PROGRESS_REPORT
-  /* Enable progress display, unless trace output is on */
+  start_progress_monitor((j_common_ptr) &cinfo, &progress);
-  if (jerr.trace_level == 0) {
-    progress.pub.progress_monitor = progress_monitor;
-    progress.completed_extra_passes = 0;
-    progress.total_extra_passes = 0;
-    progress.percent_done = -1;
-    cinfo.progress = &progress.pub;
-  }
 #endif
 
   /* Specify data source for decompression */
-  jpeg_stdio_src(&cinfo, input_file);
+#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
+  if (memsrc) {
+    size_t nbytes;
+    do {
+      inbuffer = (unsigned char *)realloc(inbuffer, insize + INPUT_BUF_SIZE);
+      if (inbuffer == NULL) {
+        fprintf(stderr, "%s: memory allocation failure\n", progname);
+        exit(EXIT_FAILURE);
+      }
+      nbytes = JFREAD(input_file, &inbuffer[insize], INPUT_BUF_SIZE);
+      if (nbytes < INPUT_BUF_SIZE && ferror(input_file)) {
+        if (file_index < argc)
+          fprintf(stderr, "%s: can't read from %s\n", progname,
+                  argv[file_index]);
+        else
+          fprintf(stderr, "%s: can't read from stdin\n", progname);
+      }
+      insize += (unsigned long)nbytes;
+    } while (nbytes == INPUT_BUF_SIZE);
+    fprintf(stderr, "Compressed size:  %lu bytes\n", insize);
+    jpeg_mem_src(&cinfo, inbuffer, insize);
+  } else
+#endif
+    jpeg_stdio_src(&cinfo, input_file);
 
   /* Read file header, set default decompression parameters */
   (void) jpeg_read_header(&cinfo, TRUE);
@@ -703,7 +632,7 @@ main (int argc, char **argv)
   dest_mgr->output_file = output_file;
 
   /* Start decompressor */
-  jpeg_start_decompress(&cinfo);
+  (void) jpeg_start_decompress(&cinfo);
 
   /* Write output file header */
   (*dest_mgr->start_output) (&cinfo, dest_mgr);
@@ -711,7 +640,7 @@ main (int argc, char **argv)
   /* Process data */
   while (cinfo.output_scanline < cinfo.output_height) {
     num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
-					dest_mgr->buffer_height);
+                                        dest_mgr->buffer_height);
     (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
   }
 
@@ -727,7 +656,7 @@ main (int argc, char **argv)
    * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory.
    */
   (*dest_mgr->finish_output) (&cinfo, dest_mgr);
-  jpeg_finish_decompress(&cinfo);
+  (void) jpeg_finish_decompress(&cinfo);
   jpeg_destroy_decompress(&cinfo);
 
   /* Close files, if we opened them */
@@ -737,14 +666,13 @@ main (int argc, char **argv)
     fclose(output_file);
 
 #ifdef PROGRESS_REPORT
-  /* Clear away progress display */
+  end_progress_monitor((j_common_ptr) &cinfo);
-  if (jerr.trace_level == 0) {
-    fprintf(stderr, "\r                \r");
-    fflush(stderr);
-  }
 #endif
 
+  if (memsrc && inbuffer != NULL)
+    free(inbuffer);
+
   /* All done. */
   exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);
-  return 0;			/* suppress no-return-value warnings */
+  return 0;                     /* suppress no-return-value warnings */
 }

doc/html/annotated.html

@@ -0,0 +1,104 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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+<link href="doxygen.css" rel="stylesheet" type="text/css" />
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+<table cellspacing="0" cellpadding="0">
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+  <td style="padding-left: 0.5em;">
+   <div id="projectname">TurboJPEG
+   &#160;<span id="projectnumber">1.4</span>
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+<!-- end header part -->
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+<tr id="row_1_"><td class="entry"><img src="ftv2node.png" alt="o" width="16" height="22" /><img src="ftv2cl.png" alt="C" width="24" height="22" /><a class="el" href="structtjscalingfactor.html" target="_self">tjscalingfactor</a></td><td class="desc">Scaling factor</td></tr>
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@@ -0,0 +1,106 @@
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+<link href="doxygen.css" rel="stylesheet" type="text/css" />
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+<div id="titlearea">
+<table cellspacing="0" cellpadding="0">
+ <tbody>
+ <tr style="height: 56px;">
+  <td style="padding-left: 0.5em;">
+   <div id="projectname">TurboJPEG
+   &#160;<span id="projectnumber">1.4</span>
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+<!-- end header part -->
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+var searchBox = new SearchBox("searchBox", "search",false,'Search');
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+  <div id="navrow1" class="tabs">
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doc/html/search/functions_74.js

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doc/html/search/groups_74.html

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+<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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+<link rel="stylesheet" type="text/css" href="search.css"/>
+<script type="text/javascript" src="groups_74.js"></script>
+<script type="text/javascript" src="search.js"></script>
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+<div id="SRIndex">
+<div class="SRStatus" id="Loading">Loading...</div>
+<div id="SRResults"></div>
+<script type="text/javascript"><!--
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+searchResults.Search();
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+</div>
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+</html>

doc/html/search/groups_74.js

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+var searchData=
+[
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doc/html/search/nomatches.html

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+<html><head><title></title>
+<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
+<link rel="stylesheet" type="text/css" href="search.css"/>
+<script type="text/javascript" src="search.js"></script>
+</head>
+<body class="SRPage">
+<div id="SRIndex">
+<div class="SRStatus" id="NoMatches">No Matches</div>
+</div>
+</body>
+</html>

doc/html/search/search.css

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+
+#FSearchBox {
+    float: left;
+}
+
+#MSearchBox {
+    white-space : nowrap;
+    position: absolute;
+    float: none;
+    display: inline;
+    margin-top: 8px;
+    right: 0px;
+    width: 170px;
+    z-index: 102;
+    background-color: white;
+}
+
+#MSearchBox .left
+{
+    display:block;
+    position:absolute;
+    left:10px;
+    width:20px;
+    height:19px;
+    background:url('search_l.png') no-repeat;
+    background-position:right;
+}
+
+#MSearchSelect {
+    display:block;
+    position:absolute;
+    width:20px;
+    height:19px;
+}
+
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+    left:4px;
+}
+
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+    right:5px;
+}
+
+#MSearchField {
+    display:block;
+    position:absolute;
+    height:19px;
+    background:url('search_m.png') repeat-x;
+    border:none;
+    width:116px;
+    margin-left:20px;
+    padding-left:4px;
+    color: #909090;
+    outline: none;
+    font: 9pt Arial, Verdana, sans-serif;
+}
+
+#FSearchBox #MSearchField {
+    margin-left:15px;
+}
+
+#MSearchBox .right {
+    display:block;
+    position:absolute;
+    right:10px;
+    top:0px;
+    width:20px;
+    height:19px;
+    background:url('search_r.png') no-repeat;
+    background-position:left;
+}
+
+#MSearchClose {
+    display: none;
+    position: absolute;
+    top: 4px;
+    background : none;
+    border: none;
+    margin: 0px 4px 0px 0px;
+    padding: 0px 0px;
+    outline: none;
+}
+
+.left #MSearchClose {
+    left: 6px;
+}
+
+.right #MSearchClose {
+    right: 2px;
+}
+
+.MSearchBoxActive #MSearchField {
+    color: #000000;
+}
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+
+#MSearchSelectWindow {
+    display: none;
+    position: absolute;
+    left: 0; top: 0;
+    border: 1px solid #90A5CE;
+    background-color: #F9FAFC;
+    z-index: 1;
+    padding-top: 4px;
+    padding-bottom: 4px;
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+}
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+}
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+}
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+a.SelectItem:focus,
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+}
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+a.SelectItem:hover {
+    color: #FFFFFF;
+    background-color: #3D578C;
+    outline-style: none;
+    text-decoration: none;
+    cursor: pointer;
+    display: block;
+}
+
+/*---------------- Search results window */
+
+iframe#MSearchResults {
+    width: 60ex;
+    height: 15em;
+}
+
+#MSearchResultsWindow {
+    display: none;
+    position: absolute;
+    left: 0; top: 0;
+    border: 1px solid #000;
+    background-color: #EEF1F7;
+}
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+    padding-bottom: 15px;
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+}
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+    margin: 5px 2px;
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+}
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+}
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+    color: #425E97;
+    font-family: Arial, Verdana, sans-serif;
+    text-decoration: none;
+    outline: none;
+}
+
+a.SRScope {
+    display: block;
+    color: #425E97; 
+    font-family: Arial, Verdana, sans-serif;
+    text-decoration: none;
+    outline: none;
+}
+
+a.SRSymbol:focus, a.SRSymbol:active,
+a.SRScope:focus, a.SRScope:active {
+    text-decoration: underline;
+}
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+span.SRScope {
+    padding-left: 4px;
+}
+
+.SRPage .SRStatus {
+    padding: 2px 5px;
+    font-size: 8pt;
+    font-style: italic;
+}
+
+.SRResult {
+    display: none;
+}
+
+DIV.searchresults {
+    margin-left: 10px;
+    margin-right: 10px;
+}
+
+/*---------------- External search page results */
+
+.searchresult {
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+}
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+.pages b {
+   color: white;
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+   background-image: url("../tab_a.png");
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+}
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+}
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+}
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+}
+

doc/html/search/search.js

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+// Search script generated by doxygen
+// Copyright (C) 2009 by Dimitri van Heesch.
+
+// The code in this file is loosly based on main.js, part of Natural Docs,
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+// Natural Docs is licensed under the GPL.
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+var indexSectionsWithContent =
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+  1: "classes",
+  2: "functions",
+  3: "variables",
+  4: "typedefs",
+  5: "enums",
+  6: "enumvalues",
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+
+function convertToId(search)
+{
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+  {
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+    var cn = c.charCodeAt(0);
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+    {
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+    else if (cn<16) 
+    {
+      result+="_0"+cn.toString(16);
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+    else 
+    {
+      result+="_"+cn.toString(16);
+    }
+  }
+  return result;
+}
+
+function getXPos(item)
+{
+  var x = 0;
+  if (item.offsetWidth)
+  {
+    while (item && item!=document.body)
+    {
+      x   += item.offsetLeft;
+      item = item.offsetParent;
+    }
+  }
+  return x;
+}
+
+function getYPos(item)
+{
+  var y = 0;
+  if (item.offsetWidth)
+  {
+     while (item && item!=document.body)
+     {
+       y   += item.offsetTop;
+       item = item.offsetParent;
+     }
+  }
+  return y;
+}
+
+/* A class handling everything associated with the search panel.
+
+   Parameters:
+   name - The name of the global variable that will be 
+          storing this instance.  Is needed to be able to set timeouts.
+   resultPath - path to use for external files
+*/
+function SearchBox(name, resultsPath, inFrame, label)
+{
+  if (!name || !resultsPath) {  alert("Missing parameters to SearchBox."); }
+   
+  // ---------- Instance variables
+  this.name                  = name;
+  this.resultsPath           = resultsPath;
+  this.keyTimeout            = 0;
+  this.keyTimeoutLength      = 500;
+  this.closeSelectionTimeout = 300;
+  this.lastSearchValue       = "";
+  this.lastResultsPage       = "";
+  this.hideTimeout           = 0;
+  this.searchIndex           = 0;
+  this.searchActive          = false;
+  this.insideFrame           = inFrame;
+  this.searchLabel           = label;
+
+  // ----------- DOM Elements
+
+  this.DOMSearchField = function()
+  {  return document.getElementById("MSearchField");  }
+
+  this.DOMSearchSelect = function()
+  {  return document.getElementById("MSearchSelect");  }
+
+  this.DOMSearchSelectWindow = function()
+  {  return document.getElementById("MSearchSelectWindow");  }
+
+  this.DOMPopupSearchResults = function()
+  {  return document.getElementById("MSearchResults");  }
+
+  this.DOMPopupSearchResultsWindow = function()
+  {  return document.getElementById("MSearchResultsWindow");  }
+
+  this.DOMSearchClose = function()
+  {  return document.getElementById("MSearchClose"); }
+
+  this.DOMSearchBox = function()
+  {  return document.getElementById("MSearchBox");  }
+
+  // ------------ Event Handlers
+
+  // Called when focus is added or removed from the search field.
+  this.OnSearchFieldFocus = function(isActive)
+  {
+    this.Activate(isActive);
+  }
+
+  this.OnSearchSelectShow = function()
+  {
+    var searchSelectWindow = this.DOMSearchSelectWindow();
+    var searchField        = this.DOMSearchSelect();
+
+    if (this.insideFrame)
+    {
+      var left = getXPos(searchField);
+      var top  = getYPos(searchField);
+      left += searchField.offsetWidth + 6;
+      top += searchField.offsetHeight;
+
+      // show search selection popup
+      searchSelectWindow.style.display='block';
+      left -= searchSelectWindow.offsetWidth;
+      searchSelectWindow.style.left =  left + 'px';
+      searchSelectWindow.style.top  =  top  + 'px';
+    }
+    else
+    {
+      var left = getXPos(searchField);
+      var top  = getYPos(searchField);
+      top += searchField.offsetHeight;
+
+      // show search selection popup
+      searchSelectWindow.style.display='block';
+      searchSelectWindow.style.left =  left + 'px';
+      searchSelectWindow.style.top  =  top  + 'px';
+    }
+
+    // stop selection hide timer
+    if (this.hideTimeout) 
+    {
+      clearTimeout(this.hideTimeout);
+      this.hideTimeout=0;
+    }
+    return false; // to avoid "image drag" default event
+  }
+
+  this.OnSearchSelectHide = function()
+  {
+    this.hideTimeout = setTimeout(this.name +".CloseSelectionWindow()",
+                                  this.closeSelectionTimeout);
+  }
+
+  // Called when the content of the search field is changed.
+  this.OnSearchFieldChange = function(evt)
+  {
+    if (this.keyTimeout) // kill running timer
+    {
+      clearTimeout(this.keyTimeout);
+      this.keyTimeout = 0;
+    }
+
+    var e  = (evt) ? evt : window.event; // for IE
+    if (e.keyCode==40 || e.keyCode==13)
+    {
+      if (e.shiftKey==1)
+      {
+        this.OnSearchSelectShow();
+        var win=this.DOMSearchSelectWindow(); 
+        for (i=0;i<win.childNodes.length;i++)
+        {
+          var child = win.childNodes[i]; // get span within a
+          if (child.className=='SelectItem')
+          {
+            child.focus();
+            return;
+          }
+        }
+        return;
+      }
+      else if (window.frames.MSearchResults.searchResults)
+      {
+        var elem = window.frames.MSearchResults.searchResults.NavNext(0);
+        if (elem) elem.focus();
+      }
+    }
+    else if (e.keyCode==27) // Escape out of the search field
+    {
+      this.DOMSearchField().blur();
+      this.DOMPopupSearchResultsWindow().style.display = 'none';
+      this.DOMSearchClose().style.display = 'none';
+      this.lastSearchValue = '';
+      this.Activate(false);
+      return;
+    }
+
+    // strip whitespaces
+    var searchValue = this.DOMSearchField().value.replace(/ +/g, "");
+
+    if (searchValue != this.lastSearchValue) // search value has changed
+    {
+      if (searchValue != "") // non-empty search
+      {
+        // set timer for search update
+        this.keyTimeout = setTimeout(this.name + '.Search()',
+                                     this.keyTimeoutLength);
+      }
+      else // empty search field
+      {
+        this.DOMPopupSearchResultsWindow().style.display = 'none';
+        this.DOMSearchClose().style.display = 'none';
+        this.lastSearchValue = '';
+      }
+    }
+  }
+
+  this.SelectItemCount = function(id)
+  {
+    var count=0;
+    var win=this.DOMSearchSelectWindow(); 
+    for (i=0;i<win.childNodes.length;i++)
+    {
+      var child = win.childNodes[i]; // get span within a
+      if (child.className=='SelectItem')
+      {
+        count++;
+      }
+    }
+    return count;
+  }
+
+  this.SelectItemSet = function(id)
+  {
+    var i,j=0;
+    var win=this.DOMSearchSelectWindow(); 
+    for (i=0;i<win.childNodes.length;i++)
+    {
+      var child = win.childNodes[i]; // get span within a
+      if (child.className=='SelectItem')
+      {
+        var node = child.firstChild;
+        if (j==id)
+        {
+          node.innerHTML='&#8226;';
+        }
+        else
+        {
+          node.innerHTML='&#160;';
+        }
+        j++;
+      }
+    }
+  }
+
+  // Called when an search filter selection is made.
+  // set item with index id as the active item
+  this.OnSelectItem = function(id)
+  {
+    this.searchIndex = id;
+    this.SelectItemSet(id);
+    var searchValue = this.DOMSearchField().value.replace(/ +/g, "");
+    if (searchValue!="" && this.searchActive) // something was found -> do a search
+    {
+      this.Search();
+    }
+  }
+
+  this.OnSearchSelectKey = function(evt)
+  {
+    var e = (evt) ? evt : window.event; // for IE
+    if (e.keyCode==40 && this.searchIndex<this.SelectItemCount()) // Down
+    {
+      this.searchIndex++;
+      this.OnSelectItem(this.searchIndex);
+    }
+    else if (e.keyCode==38 && this.searchIndex>0) // Up
+    {
+      this.searchIndex--;
+      this.OnSelectItem(this.searchIndex);
+    }
+    else if (e.keyCode==13 || e.keyCode==27)
+    {
+      this.OnSelectItem(this.searchIndex);
+      this.CloseSelectionWindow();
+      this.DOMSearchField().focus();
+    }
+    return false;
+  }
+
+  // --------- Actions
+
+  // Closes the results window.
+  this.CloseResultsWindow = function()
+  {
+    this.DOMPopupSearchResultsWindow().style.display = 'none';
+    this.DOMSearchClose().style.display = 'none';
+    this.Activate(false);
+  }
+
+  this.CloseSelectionWindow = function()
+  {
+    this.DOMSearchSelectWindow().style.display = 'none';
+  }
+
+  // Performs a search.
+  this.Search = function()
+  {
+    this.keyTimeout = 0;
+
+    // strip leading whitespace
+    var searchValue = this.DOMSearchField().value.replace(/^ +/, "");
+
+    var code = searchValue.toLowerCase().charCodeAt(0);
+    var hexCode;
+    if (code<16) 
+    {
+      hexCode="0"+code.toString(16);
+    }
+    else 
+    {
+      hexCode=code.toString(16);
+    }
+
+    var resultsPage;
+    var resultsPageWithSearch;
+    var hasResultsPage;
+
+    if (indexSectionsWithContent[this.searchIndex].charAt(code) == '1')
+    {
+       resultsPage = this.resultsPath + '/' + indexSectionNames[this.searchIndex] + '_' + hexCode + '.html';
+       resultsPageWithSearch = resultsPage+'?'+escape(searchValue);
+       hasResultsPage = true;
+    }
+    else // nothing available for this search term
+    {
+       resultsPage = this.resultsPath + '/nomatches.html';
+       resultsPageWithSearch = resultsPage;
+       hasResultsPage = false;
+    }
+
+    window.frames.MSearchResults.location = resultsPageWithSearch;  
+    var domPopupSearchResultsWindow = this.DOMPopupSearchResultsWindow();
+
+    if (domPopupSearchResultsWindow.style.display!='block')
+    {
+       var domSearchBox = this.DOMSearchBox();
+       this.DOMSearchClose().style.display = 'inline';
+       if (this.insideFrame)
+       {
+         var domPopupSearchResults = this.DOMPopupSearchResults();
+         domPopupSearchResultsWindow.style.position = 'relative';
+         domPopupSearchResultsWindow.style.display  = 'block';
+         var width = document.body.clientWidth - 8; // the -8 is for IE :-(
+         domPopupSearchResultsWindow.style.width    = width + 'px';
+         domPopupSearchResults.style.width          = width + 'px';
+       }
+       else
+       {
+         var domPopupSearchResults = this.DOMPopupSearchResults();
+         var left = getXPos(domSearchBox) + 150; // domSearchBox.offsetWidth;
+         var top  = getYPos(domSearchBox) + 20;  // domSearchBox.offsetHeight + 1;
+         domPopupSearchResultsWindow.style.display = 'block';
+         left -= domPopupSearchResults.offsetWidth;
+         domPopupSearchResultsWindow.style.top     = top  + 'px';
+         domPopupSearchResultsWindow.style.left    = left + 'px';
+       }
+    }
+
+    this.lastSearchValue = searchValue;
+    this.lastResultsPage = resultsPage;
+  }
+
+  // -------- Activation Functions
+
+  // Activates or deactivates the search panel, resetting things to 
+  // their default values if necessary. 
+  this.Activate = function(isActive)
+  {
+    if (isActive || // open it
+        this.DOMPopupSearchResultsWindow().style.display == 'block' 
+       )
+    {
+      this.DOMSearchBox().className = 'MSearchBoxActive';
+
+      var searchField = this.DOMSearchField();
+
+      if (searchField.value == this.searchLabel) // clear "Search" term upon entry
+      {  
+        searchField.value = '';  
+        this.searchActive = true;
+      }
+    }
+    else if (!isActive) // directly remove the panel
+    {
+      this.DOMSearchBox().className = 'MSearchBoxInactive';
+      this.DOMSearchField().value   = this.searchLabel;
+      this.searchActive             = false;
+      this.lastSearchValue          = ''
+      this.lastResultsPage          = '';
+    }
+  }
+}
+
+// -----------------------------------------------------------------------
+
+// The class that handles everything on the search results page.
+function SearchResults(name)
+{
+    // The number of matches from the last run of <Search()>.
+    this.lastMatchCount = 0;
+    this.lastKey = 0;
+    this.repeatOn = false;
+
+    // Toggles the visibility of the passed element ID.
+    this.FindChildElement = function(id)
+    {
+      var parentElement = document.getElementById(id);
+      var element = parentElement.firstChild;
+
+      while (element && element!=parentElement)
+      {
+        if (element.nodeName == 'DIV' && element.className == 'SRChildren')
+        {
+          return element;
+        }
+
+        if (element.nodeName == 'DIV' && element.hasChildNodes())
+        {  
+           element = element.firstChild;  
+        }
+        else if (element.nextSibling)
+        {  
+           element = element.nextSibling;  
+        }
+        else
+        {
+          do
+          {
+            element = element.parentNode;
+          }
+          while (element && element!=parentElement && !element.nextSibling);
+
+          if (element && element!=parentElement)
+          {  
+            element = element.nextSibling;  
+          }
+        }
+      }
+    }
+
+    this.Toggle = function(id)
+    {
+      var element = this.FindChildElement(id);
+      if (element)
+      {
+        if (element.style.display == 'block')
+        {
+          element.style.display = 'none';
+        }
+        else
+        {
+          element.style.display = 'block';
+        }
+      }
+    }
+
+    // Searches for the passed string.  If there is no parameter,
+    // it takes it from the URL query.
+    //
+    // Always returns true, since other documents may try to call it
+    // and that may or may not be possible.
+    this.Search = function(search)
+    {
+      if (!search) // get search word from URL
+      {
+        search = window.location.search;
+        search = search.substring(1);  // Remove the leading '?'
+        search = unescape(search);
+      }
+
+      search = search.replace(/^ +/, ""); // strip leading spaces
+      search = search.replace(/ +$/, ""); // strip trailing spaces
+      search = search.toLowerCase();
+      search = convertToId(search);
+
+      var resultRows = document.getElementsByTagName("div");
+      var matches = 0;
+
+      var i = 0;
+      while (i < resultRows.length)
+      {
+        var row = resultRows.item(i);
+        if (row.className == "SRResult")
+        {
+          var rowMatchName = row.id.toLowerCase();
+          rowMatchName = rowMatchName.replace(/^sr\d*_/, ''); // strip 'sr123_'
+
+          if (search.length<=rowMatchName.length && 
+             rowMatchName.substr(0, search.length)==search)
+          {
+            row.style.display = 'block';
+            matches++;
+          }
+          else
+          {
+            row.style.display = 'none';
+          }
+        }
+        i++;
+      }
+      document.getElementById("Searching").style.display='none';
+      if (matches == 0) // no results
+      {
+        document.getElementById("NoMatches").style.display='block';
+      }
+      else // at least one result
+      {
+        document.getElementById("NoMatches").style.display='none';
+      }
+      this.lastMatchCount = matches;
+      return true;
+    }
+
+    // return the first item with index index or higher that is visible
+    this.NavNext = function(index)
+    {
+      var focusItem;
+      while (1)
+      {
+        var focusName = 'Item'+index;
+        focusItem = document.getElementById(focusName);
+        if (focusItem && focusItem.parentNode.parentNode.style.display=='block')
+        {
+          break;
+        }
+        else if (!focusItem) // last element
+        {
+          break;
+        }
+        focusItem=null;
+        index++;
+      }
+      return focusItem;
+    }
+
+    this.NavPrev = function(index)
+    {
+      var focusItem;
+      while (1)
+      {
+        var focusName = 'Item'+index;
+        focusItem = document.getElementById(focusName);
+        if (focusItem && focusItem.parentNode.parentNode.style.display=='block')
+        {
+          break;
+        }
+        else if (!focusItem) // last element
+        {
+          break;
+        }
+        focusItem=null;
+        index--;
+      }
+      return focusItem;
+    }
+
+    this.ProcessKeys = function(e)
+    {
+      if (e.type == "keydown") 
+      {
+        this.repeatOn = false;
+        this.lastKey = e.keyCode;
+      }
+      else if (e.type == "keypress")
+      {
+        if (!this.repeatOn)
+        {
+          if (this.lastKey) this.repeatOn = true;
+          return false; // ignore first keypress after keydown
+        }
+      }
+      else if (e.type == "keyup")
+      {
+        this.lastKey = 0;
+        this.repeatOn = false;
+      }
+      return this.lastKey!=0;
+    }
+
+    this.Nav = function(evt,itemIndex) 
+    {
+      var e  = (evt) ? evt : window.event; // for IE
+      if (e.keyCode==13) return true;
+      if (!this.ProcessKeys(e)) return false;
+
+      if (this.lastKey==38) // Up
+      {
+        var newIndex = itemIndex-1;
+        var focusItem = this.NavPrev(newIndex);
+        if (focusItem)
+        {
+          var child = this.FindChildElement(focusItem.parentNode.parentNode.id);
+          if (child && child.style.display == 'block') // children visible
+          { 
+            var n=0;
+            var tmpElem;
+            while (1) // search for last child
+            {
+              tmpElem = document.getElementById('Item'+newIndex+'_c'+n);
+              if (tmpElem)
+              {
+                focusItem = tmpElem;
+              }
+              else // found it!
+              {
+                break;
+              }
+              n++;
+            }
+          }
+        }
+        if (focusItem)
+        {
+          focusItem.focus();
+        }
+        else // return focus to search field
+        {
+           parent.document.getElementById("MSearchField").focus();
+        }
+      }
+      else if (this.lastKey==40) // Down
+      {
+        var newIndex = itemIndex+1;
+        var focusItem;
+        var item = document.getElementById('Item'+itemIndex);
+        var elem = this.FindChildElement(item.parentNode.parentNode.id);
+        if (elem && elem.style.display == 'block') // children visible
+        {
+          focusItem = document.getElementById('Item'+itemIndex+'_c0');
+        }
+        if (!focusItem) focusItem = this.NavNext(newIndex);
+        if (focusItem)  focusItem.focus();
+      }
+      else if (this.lastKey==39) // Right
+      {
+        var item = document.getElementById('Item'+itemIndex);
+        var elem = this.FindChildElement(item.parentNode.parentNode.id);
+        if (elem) elem.style.display = 'block';
+      }
+      else if (this.lastKey==37) // Left
+      {
+        var item = document.getElementById('Item'+itemIndex);
+        var elem = this.FindChildElement(item.parentNode.parentNode.id);
+        if (elem) elem.style.display = 'none';
+      }
+      else if (this.lastKey==27) // Escape
+      {
+        parent.searchBox.CloseResultsWindow();
+        parent.document.getElementById("MSearchField").focus();
+      }
+      else if (this.lastKey==13) // Enter
+      {
+        return true;
+      }
+      return false;
+    }
+
+    this.NavChild = function(evt,itemIndex,childIndex)
+    {
+      var e  = (evt) ? evt : window.event; // for IE
+      if (e.keyCode==13) return true;
+      if (!this.ProcessKeys(e)) return false;
+
+      if (this.lastKey==38) // Up
+      {
+        if (childIndex>0)
+        {
+          var newIndex = childIndex-1;
+          document.getElementById('Item'+itemIndex+'_c'+newIndex).focus();
+        }
+        else // already at first child, jump to parent
+        {
+          document.getElementById('Item'+itemIndex).focus();
+        }
+      }
+      else if (this.lastKey==40) // Down
+      {
+        var newIndex = childIndex+1;
+        var elem = document.getElementById('Item'+itemIndex+'_c'+newIndex);
+        if (!elem) // last child, jump to parent next parent
+        {
+          elem = this.NavNext(itemIndex+1);
+        }
+        if (elem)
+        {
+          elem.focus();
+        } 
+      }
+      else if (this.lastKey==27) // Escape
+      {
+        parent.searchBox.CloseResultsWindow();
+        parent.document.getElementById("MSearchField").focus();
+      }
+      else if (this.lastKey==13) // Enter
+      {
+        return true;
+      }
+      return false;
+    }
+}
+
+function setKeyActions(elem,action)
+{
+  elem.setAttribute('onkeydown',action);
+  elem.setAttribute('onkeypress',action);
+  elem.setAttribute('onkeyup',action);
+}
+
+function setClassAttr(elem,attr)
+{
+  elem.setAttribute('class',attr);
+  elem.setAttribute('className',attr);
+}
+
+function createResults()
+{
+  var results = document.getElementById("SRResults");
+  for (var e=0; e<searchData.length; e++)
+  {
+    var id = searchData[e][0];
+    var srResult = document.createElement('div');
+    srResult.setAttribute('id','SR_'+id);
+    setClassAttr(srResult,'SRResult');
+    var srEntry = document.createElement('div');
+    setClassAttr(srEntry,'SREntry');
+    var srLink = document.createElement('a');
+    srLink.setAttribute('id','Item'+e);
+    setKeyActions(srLink,'return searchResults.Nav(event,'+e+')');
+    setClassAttr(srLink,'SRSymbol');
+    srLink.innerHTML = searchData[e][1][0];
+    srEntry.appendChild(srLink);
+    if (searchData[e][1].length==2) // single result
+    {
+      srLink.setAttribute('href',searchData[e][1][1][0]);
+      if (searchData[e][1][1][1])
+      {
+       srLink.setAttribute('target','_parent');
+      }
+      var srScope = document.createElement('span');
+      setClassAttr(srScope,'SRScope');
+      srScope.innerHTML = searchData[e][1][1][2];
+      srEntry.appendChild(srScope);
+    }
+    else // multiple results
+    {
+      srLink.setAttribute('href','javascript:searchResults.Toggle("SR_'+id+'")');
+      var srChildren = document.createElement('div');
+      setClassAttr(srChildren,'SRChildren');
+      for (var c=0; c<searchData[e][1].length-1; c++)
+      {
+        var srChild = document.createElement('a');
+        srChild.setAttribute('id','Item'+e+'_c'+c);
+        setKeyActions(srChild,'return searchResults.NavChild(event,'+e+','+c+')');
+        setClassAttr(srChild,'SRScope');
+        srChild.setAttribute('href',searchData[e][1][c+1][0]);
+        if (searchData[e][1][c+1][1])
+        {
+         srChild.setAttribute('target','_parent');
+        }
+        srChild.innerHTML = searchData[e][1][c+1][2];
+        srChildren.appendChild(srChild);
+      }
+      srEntry.appendChild(srChildren);
+    }
+    srResult.appendChild(srEntry);
+    results.appendChild(srResult);
+  }
+}
+

doc/html/search/typedefs_74.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html><head><title></title>
+<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
+<meta name="generator" content="Doxygen 1.8.3.1">
+<link rel="stylesheet" type="text/css" href="search.css"/>
+<script type="text/javascript" src="typedefs_74.js"></script>
+<script type="text/javascript" src="search.js"></script>
+</head>
+<body class="SRPage">
+<div id="SRIndex">
+<div class="SRStatus" id="Loading">Loading...</div>
+<div id="SRResults"></div>
+<script type="text/javascript"><!--
+createResults();
+--></script>
+<div class="SRStatus" id="Searching">Searching...</div>
+<div class="SRStatus" id="NoMatches">No Matches</div>
+<script type="text/javascript"><!--
+document.getElementById("Loading").style.display="none";
+document.getElementById("NoMatches").style.display="none";
+var searchResults = new SearchResults("searchResults");
+searchResults.Search();
+--></script>
+</div>
+</body>
+</html>