mirror of
https://github.com/etlegacy/etlegacy-libs.git
synced 2024-11-10 06:42:14 +00:00
imported libjpeg-turbo version 1.3.1
This commit is contained in:
Remy Marquis
parent
f70739f0cb
commit
6414c139bd
398 changed files with 154340 additions and 0 deletions
807
jpegturbo/BUILDING.txt
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807
jpegturbo/BUILDING.txt
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@ -0,0 +1,807 @@
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*******************************************************************************
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** Building on Un*x Platforms (including Cygwin and OS X)
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*******************************************************************************
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==================
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Build Requirements
|
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==================
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|
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-- autoconf 2.56 or later
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||||
-- 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)
|
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* 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
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||||
|
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and executing the following as root:
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ARCH=`uname -m`
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rpmbuild --rebuild nasm-{version}.src.rpm
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rpm -Uvh /usr/src/redhat/RPMS/$ARCH/nasm-{version}.$ARCH.rpm
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||||
|
||||
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
|
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called LLVM-GCC. Unfortunately, as of this writing, neither LLVM-GCC nor
|
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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
|
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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 OS X 10.4, 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.
|
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|
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|
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======================
|
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Building libjpeg-turbo
|
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======================
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|
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The following procedure will build libjpeg-turbo on Linux, FreeBSD, Cygwin, and
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Solaris/x86 systems (on Solaris, this generates a 32-bit library. See below
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for 64-bit build instructions.)
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|
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cd {source_directory}
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autoreconf -fiv
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cd {build_directory}
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sh {source_directory}/configure [additional configure flags]
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make
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|
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NOTE: Running autoreconf in the source directory is usually only necessary if
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building libjpeg-turbo from the SVN repository.
|
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|
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This will generate the following files under .libs/
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|
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libjpeg.a
|
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Static link library for the libjpeg API
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|
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libjpeg.so.{version} (Linux, Unix)
|
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libjpeg.{version}.dylib (OS X)
|
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cygjpeg-{version}.dll (Cygwin)
|
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Shared library for the libjpeg API
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|
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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
|
||||
|
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libturbojpeg.a
|
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Static link library for the TurboJPEG API
|
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|
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libturbojpeg.so.0.0.0 (Linux, Unix)
|
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libturbojpeg.0.0.0.dylib (OS X)
|
||||
cygturbojpeg-0.dll (Cygwin)
|
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Shared library for the TurboJPEG API
|
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|
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libturbojpeg.so (Linux, Unix)
|
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libturbojpeg.dylib (OS X)
|
||||
Development symlink for the TurboJPEG API
|
||||
|
||||
libturbojpeg.dll.a (Cygwin)
|
||||
Import library for the TurboJPEG API
|
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|
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|
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libjpeg v7 or v8 API/ABI Emulation
|
||||
----------------------------------
|
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|
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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/MacOSX10.4u.sdk \
|
||||
-mmacosx-version-min=10.4 -O3' \
|
||||
LDFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
|
||||
-mmacosx-version-min=10.4'
|
||||
|
||||
to the configure command line. The OS X 10.4 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/MacOSX10.4u.sdk \
|
||||
-mmacosx-version-min=10.4 -O3 -m32' \
|
||||
LDFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
|
||||
-mmacosx-version-min=10.4 -m32'
|
||||
|
||||
to the configure command line. The OS X 10.4 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.
|
||||
|
||||
|
||||
Building libjpeg-turbo for iOS
|
||||
------------------------------
|
||||
|
||||
iOS platforms, such as the iPhone and iPad, also use ARM processors, some of
|
||||
which support NEON instructions. Additional steps are required to build
|
||||
libjpeg-turbo for these platforms. The steps below assume iOS SDK v4.3. If
|
||||
you are using a different SDK version, then you will need to modify the
|
||||
examples accordingly.
|
||||
|
||||
Additional build requirements:
|
||||
|
||||
gas-preprocessor.pl
|
||||
(https://sourceforge.net/p/libjpeg-turbo/code/HEAD/tree/gas-preprocessor)
|
||||
should be installed in your PATH.
|
||||
|
||||
Set the following shell variables for simplicity:
|
||||
|
||||
Xcode 3.2.x / iOS 4.3 SDK:
|
||||
IOS_PLATFORMDIR=/Developer/Platforms/iPhoneOS.platform
|
||||
IOS_SYSROOT=$IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS4.3.sdk
|
||||
IOS_GCC=$IOS_PLATFORMDIR/Developer/usr/bin/arm-apple-darwin10-llvm-gcc-4.2
|
||||
|
||||
Xcode 4.5.x / iOS 6.0 SDK:
|
||||
IOS_PLATFORMDIR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform
|
||||
IOS_SYSROOT=$IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS6.0.sdk
|
||||
IOS_GCC=$IOS_PLATFORMDIR/Developer/usr/bin/arm-apple-darwin10-llvm-gcc-4.2
|
||||
|
||||
Xcode 4.6.x / iOS 6.1 SDK:
|
||||
IOS_PLATFORMDIR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform
|
||||
IOS_SYSROOT=$IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS6.1.sdk
|
||||
IOS_GCC=$IOS_PLATFORMDIR/Developer/usr/bin/arm-apple-darwin10-llvm-gcc-4.2
|
||||
|
||||
Xcode 5.0.x / iOS 7.0 SDK:
|
||||
IOS_PLATFORMDIR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform
|
||||
IOS_SYSROOT=$IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS7.0.sdk
|
||||
IOS_GCC=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
|
||||
|
||||
ARM v6 only (up to and including iPhone 3G):
|
||||
[NOTE: Requires Xcode 4.4.x or earlier]
|
||||
IOS_CFLAGS="-march=armv6 -mcpu=arm1176jzf-s -mfpu=vfp"
|
||||
|
||||
ARM v7 only (iPhone 3GS-4S, iPad 1st-3rd Generation):
|
||||
GCC:
|
||||
IOS_CFLAGS="-march=armv7 -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon"
|
||||
Clang:
|
||||
IOS_CFLAGS="-arch armv7 -no-integrated-as"
|
||||
|
||||
ARM v7s only (iPhone 5, iPad 4th Generation):
|
||||
[NOTE: Requires Xcode 4.5 or later]
|
||||
GCC
|
||||
IOS_CFLAGS="-march=armv7s -mcpu=swift -mtune=swift -mfpu=neon"
|
||||
Clang:
|
||||
IOS_CFLAGS="-arch armv7s -no-integrated-as"
|
||||
|
||||
Follow the procedure under "Building libjpeg-turbo" above, adding
|
||||
|
||||
--host arm-apple-darwin10 --enable-static --disable-shared \
|
||||
CC="$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.
|
||||
|
||||
Once built, lipo can be used to combine the ARM v6, v7, and/or v7s 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 ARM v7 or v7s iOS binaries using the techniques
|
||||
described above. Otherwise, you may get a libtool error such as "unable to
|
||||
infer tagged configuration."
|
||||
|
||||
|
||||
*******************************************************************************
|
||||
** Building on Windows (Visual C++ or MinGW)
|
||||
*******************************************************************************
|
||||
|
||||
|
||||
==================
|
||||
Build Requirements
|
||||
==================
|
||||
|
||||
-- CMake (http://www.cmake.org) v2.6 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.
|
||||
|
||||
* For 32-bit builds, you can also use Microsoft Visual C++ Express
|
||||
Edition. Visual C++ Express Edition is a free download.
|
||||
* 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
|
||||
|
||||
GCC v4.1 or later recommended for best performance
|
||||
|
||||
-- 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 9 2008" {source_directory}
|
||||
|
||||
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
|
||||
-----
|
||||
|
||||
cd {build_directory}
|
||||
cmake -G "MSYS Makefiles" {source_directory}
|
||||
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_AR=/usr/bin/x86_64-w64-mingw32-ar \
|
||||
-DCMAKE_RANLIB=/usr/bin/x86_64-w64-mingw32-ranlib {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 \
|
||||
-DDCMAKE_AR=/usr/bin/i686-w64-mingw32-ar \
|
||||
-DCMAKE_RANLIB=/usr/bin/i686-w64-mingw32-ranlib {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-w64 Build on Windows
|
||||
--------------------------
|
||||
|
||||
This produces a 64-bit build of libjpeg-turbo using the "native" MinGW-w64
|
||||
toolchain (which is faster than the Cygwin version):
|
||||
|
||||
cd {build_directory}
|
||||
CC={mingw-w64_binary_path}/x86_64-w64-mingw32-gcc \
|
||||
cmake -G "MSYS Makefiles" \
|
||||
-DCMAKE_AR={mingw-w64_binary_path}/x86_64-w64-mingw32-ar \
|
||||
-DCMAKE_RANLIB={mingw-w64_binary_path}/x86_64-w64-mingw32-ranlib \
|
||||
{source_directory}
|
||||
make
|
||||
|
||||
|
||||
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 the PackageMaker
|
||||
application, which must be installed in /Developer/Applications/Utilities.
|
||||
Note that PackageMaker is not included in recent releases of Xcode, but it
|
||||
can be obtained by downloading the "Auxiliary Tools for Xcode" package from
|
||||
http://developer.apple.com/downloads.
|
||||
|
||||
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={ARM v6 build directory}] \
|
||||
[BUILDDIRARMV7={ARM v7 build directory}] \
|
||||
[BUILDDIRARMV7S={ARM v7s 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 ARM v6, ARM v7, and/or ARM v7s 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 ARM v6 build under {source_directory}/iosarmv6
|
||||
by default, the ARM v7 build under {source_directory}/iosarmv7 by default,
|
||||
the ARM v7s build under {source_directory}/iosarmv7s 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, and/or BUILDDIRARMV7S variables on the make command line as
|
||||
shown above.
|
||||
|
||||
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.
|
||||
499
jpegturbo/CMakeLists.txt
Normal file
499
jpegturbo/CMakeLists.txt
Normal file
|
|
@ -0,0 +1,499 @@
|
|||
#
|
||||
# Setup
|
||||
#
|
||||
|
||||
cmake_minimum_required(VERSION 2.8.8)
|
||||
cmake_policy(SET CMP0022 OLD)
|
||||
|
||||
project(libjpeg-turbo C)
|
||||
set(VERSION 1.3.1)
|
||||
|
||||
if(MINGW OR CYGWIN)
|
||||
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_JAVA "Build Java wrapper for the TurboJPEG library" FALSE)
|
||||
|
||||
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_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)
|
||||
# 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()
|
||||
|
||||
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 = ${CMAKE_INSTALL_PREFIX}")
|
||||
|
||||
configure_file(win/jconfig.h.in jconfig.h)
|
||||
configure_file(win/config.h.in config.h)
|
||||
|
||||
include_directories(${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)
|
||||
endif()
|
||||
|
||||
add_subdirectory(sharedlib)
|
||||
|
||||
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()
|
||||
|
||||
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()
|
||||
|
||||
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_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 tjunittest.c tjutil.c)
|
||||
target_link_libraries(tjunittest turbojpeg)
|
||||
|
||||
add_executable(tjunittest-static tjunittest.c tjutil.c)
|
||||
target_link_libraries(tjunittest-static turbojpeg-static)
|
||||
|
||||
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")
|
||||
|
||||
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")
|
||||
|
||||
add_executable(cjpeg-static cjpeg.c cdjpeg.c rdbmp.c rdgif.c rdppm.c rdswitch.c
|
||||
rdtarga.c)
|
||||
set_property(TARGET cjpeg-static PROPERTY COMPILE_FLAGS
|
||||
"-DBMP_SUPPORTED -DGIF_SUPPORTED -DPPM_SUPPORTED -DTARGA_SUPPORTED -DUSE_SETMODE")
|
||||
target_link_libraries(cjpeg-static jpeg-static)
|
||||
|
||||
add_executable(djpeg-static djpeg.c cdjpeg.c rdcolmap.c rdswitch.c wrbmp.c wrgif.c
|
||||
wrppm.c wrtarga.c)
|
||||
set_property(TARGET djpeg-static PROPERTY COMPILE_FLAGS
|
||||
"-DBMP_SUPPORTED -DGIF_SUPPORTED -DPPM_SUPPORTED -DTARGA_SUPPORTED -DUSE_SETMODE")
|
||||
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")
|
||||
|
||||
add_executable(rdjpgcom rdjpgcom.c)
|
||||
|
||||
add_executable(wrjpgcom rdjpgcom.c)
|
||||
|
||||
|
||||
#
|
||||
# Tests
|
||||
#
|
||||
|
||||
if(MSVC_IDE)
|
||||
set(OBJDIR "\${CTEST_CONFIGURATION_TYPE}/")
|
||||
else()
|
||||
set(OBJDIR "")
|
||||
endif()
|
||||
|
||||
enable_testing()
|
||||
|
||||
set(MD5_JPEG_INT 9a68f56bc76e466aa7e52f415d0f4a5f)
|
||||
set(MD5_JPEG_FAST 0e1502e7fa421835e376a314fac2a39f)
|
||||
set(MD5_JPEG_FAST_100 7bf72a8e741d64eecb960c97323af77c)
|
||||
set(MD5_JPEG_FLOAT d1623885ffafcd40c684af09e3d65cd5)
|
||||
set(MD5_JPEG_FLOAT_NOSIMD fb4884c35f8273f498cb32879de5c455)
|
||||
set(MD5_JPEG_INT_GRAY 72b51f894b8f4a10b3ee3066770aa38d)
|
||||
set(MD5_PPM_INT d1ed0d11f076b842525271647716aeb8)
|
||||
set(MD5_PPM_FAST 048298a2d2410261c0533cb97bcfef23)
|
||||
set(MD5_PPM_FLOAT 7f5b446ee36b2630e06785b8d42af15f)
|
||||
set(MD5_PPM_FLOAT_NOSIMD 64072f1dbdc5b3a187777788604971a5)
|
||||
set(MD5_PPM_INT_2_1 9f9de8c0612f8d06869b960b05abf9c9)
|
||||
set(MD5_PPM_INT_15_8 b6875bc070720b899566cc06459b63b7)
|
||||
set(MD5_PPM_INT_7_4 06a177eae05f164fac57f7a2c346ee87)
|
||||
set(MD5_PPM_INT_13_8 bc3452573c8152f6ae552939ee19f82f)
|
||||
set(MD5_PPM_INT_3_2 f5a8b88a8a7f96016f04d259cf82ed67)
|
||||
set(MD5_PPM_INT_11_8 d8cc73c0aaacd4556569b59437ba00a5)
|
||||
set(MD5_PPM_INT_5_4 32775dd9ad2ab90f4c5b219b53e0c86c)
|
||||
set(MD5_PPM_INT_9_8 d25e61bc7eac0002f5b393aa223747b6)
|
||||
set(MD5_PPM_INT_7_8 ddb564b7c74a09494016d6cd7502a946)
|
||||
set(MD5_PPM_INT_3_4 8ed8e68808c3fbc4ea764fc9d2968646)
|
||||
set(MD5_PPM_INT_5_8 a3363274999da2366a024efae6d16c9b)
|
||||
set(MD5_PPM_INT_1_2 e692a315cea26b988c8e8b29a5dbcd81)
|
||||
set(MD5_PPM_INT_3_8 79eca9175652ced755155c90e785a996)
|
||||
set(MD5_PPM_INT_1_4 79cd778f8bf1a117690052cacdd54eca)
|
||||
set(MD5_PPM_INT_1_8 391b3d4aca640c8567d6f8745eb2142f)
|
||||
set(MD5_PPM_FAST_1_2 f30bcf6d32ccd44cbdd9aeaacbd9454f)
|
||||
set(MD5_BMP_256 4980185e3776e89bd931736e1cddeee6)
|
||||
set(MD5_JPEG_ARI e986fb0a637a8d833d96e8a6d6d84ea1)
|
||||
set(MD5_PPM_ARI 72b59a99bcf1de24c5b27d151bde2437)
|
||||
set(MD5_JPEG_PROG 1c4afddc05c0a43489ee54438a482d92)
|
||||
set(MD5_JPEG_PROG_ARI 0a8f1c8f66e113c3cf635df0a475a617)
|
||||
set(MD5_JPEG_CROP b4197f377e621c4e9b1d20471432610d)
|
||||
|
||||
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-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)
|
||||
endif()
|
||||
add_test(tjunittest tjunittest)
|
||||
add_test(tjunittest-alloc tjunittest -alloc)
|
||||
add_test(tjunittest-yuv tjunittest -yuv)
|
||||
add_test(cjpeg-int sharedlib/cjpeg -dct int -outfile testoutint.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-int-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT} -DFILE=testoutint.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-fast sharedlib/cjpeg -dct fast -opt -outfile testoutfst.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-fast-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FAST} -DFILE=testoutfst.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-fast-100 sharedlib/cjpeg -dct fast -quality 100 -opt -outfile testoutfst100.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-fast-100-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FAST_100} -DFILE=testoutfst100.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-float sharedlib/cjpeg -dct float -outfile testoutflt.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
if(WITH_SIMD)
|
||||
add_test(cjpeg-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FLOAT} -DFILE=testoutflt.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
else()
|
||||
add_test(cjpeg-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FLOAT_NOSIMD} -DFILE=testoutflt.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endif()
|
||||
add_test(cjpeg-int-gray sharedlib/cjpeg -dct int -grayscale -outfile testoutgray.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-int-gray-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT_GRAY} -DFILE=testoutgray.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-int sharedlib/djpeg -dct int -fast -ppm -outfile testoutint.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-int-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_INT} -DFILE=testoutint.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-fast sharedlib/djpeg -dct fast -ppm -outfile testoutfst.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-fast-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FAST} -DFILE=testoutfst.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-float sharedlib/djpeg -dct float -ppm -outfile testoutflt.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
if(WITH_SIMD)
|
||||
add_test(djpeg-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FLOAT} -DFILE=testoutflt.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
else()
|
||||
add_test(djpeg-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FLOAT_NOSIMD} -DFILE=testoutflt.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endif()
|
||||
foreach(scale 2_1 15_8 7_4 13_8 3_2 11_8 5_4 9_8 7_8 3_4 5_8 1_2 3_8 1_4 1_8)
|
||||
string(REGEX REPLACE "_" "/" scalearg ${scale})
|
||||
add_test(djpeg-int-${scale} sharedlib/djpeg -dct int -nosmooth -scale ${scalearg} -ppm -outfile testoutint${scale}.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-int-${scale}-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_INT_${scale}} -DFILE=testoutint${scale}.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endforeach()
|
||||
add_test(djpeg-fast-1_2 sharedlib/djpeg -dct fast -scale 1/2 -ppm -outfile testoutfst1_2.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-fast-1_2-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FAST_1_2} -DFILE=testoutfst1_2.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-256 sharedlib/djpeg -dct int -bmp -colors 256 -outfile testout.bmp ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-256-cmp ${CMAKE_COMMAND} -DMD5=${MD5_BMP_256} -DFILE=testout.bmp -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-prog sharedlib/cjpeg -dct int -progressive -outfile testoutp.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-prog-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_PROG} -DFILE=testoutp.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(jpegtran-prog sharedlib/jpegtran -outfile testoutt.jpg testoutp.jpg)
|
||||
add_test(jpegtran-prog-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT} -DFILE=testoutt.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
if(WITH_ARITH_ENC)
|
||||
add_test(cjpeg-ari sharedlib/cjpeg -dct int -arithmetic -outfile testoutari.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-ari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_ARI} -DFILE=testoutari.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake )
|
||||
add_test(jpegtran-toari sharedlib/jpegtran -arithmetic -outfile testouta.jpg ${CMAKE_SOURCE_DIR}/testimages/testimgint.jpg)
|
||||
add_test(jpegtran-toari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_ARI} -DFILE=testouta.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-prog-ari sharedlib/cjpeg -dct int -progressive -arithmetic -sample 1x1 -outfile testoutpa.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-prog-ari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_PROG_ARI} -DFILE=testoutpa.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake )
|
||||
endif()
|
||||
if(WITH_ARITH_DEC)
|
||||
add_test(djpeg-ari sharedlib/djpeg -dct int -fast -ppm -outfile testoutari.ppm ${CMAKE_SOURCE_DIR}/testimages/testimgari.jpg)
|
||||
add_test(djpeg-ari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_ARI} -DFILE=testoutari.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(jpegtran-fromari sharedlib/jpegtran -outfile testouta.jpg ${CMAKE_SOURCE_DIR}/testimages/testimgari.jpg)
|
||||
add_test(jpegtran-fromari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT} -DFILE=testouta.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endif()
|
||||
add_test(jpegtran-crop sharedlib/jpegtran -crop 120x90+20+50 -transpose -perfect -outfile testoutcrop.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(jpegtran-crop-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_CROP} -DFILE=testoutcrop.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
|
||||
add_test(tjunittest-static tjunittest-static)
|
||||
add_test(tjunittest-static-alloc tjunittest-static -alloc)
|
||||
add_test(tjunittest-static-yuv tjunittest-static -yuv)
|
||||
add_test(cjpeg-static-int cjpeg-static -dct int -outfile testoutint.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-static-int-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT} -DFILE=testoutint.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-static-fast cjpeg-static -dct fast -opt -outfile testoutfst.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-static-fast-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FAST} -DFILE=testoutfst.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-static-fast-100 cjpeg-static -dct fast -quality 100 -opt -outfile testoutfst100.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-static-fast-100-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FAST_100} -DFILE=testoutfst100.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-static-float cjpeg-static -dct float -outfile testoutflt.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
if(WITH_SIMD)
|
||||
add_test(cjpeg-static-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FLOAT} -DFILE=testoutflt.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
else()
|
||||
add_test(cjpeg-static-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_FLOAT_NOSIMD} -DFILE=testoutflt.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endif()
|
||||
add_test(cjpeg-static-int-gray cjpeg-static -dct int -grayscale -outfile testoutgray.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-static-int-gray-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT_GRAY} -DFILE=testoutgray.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-static-int djpeg-static -dct int -fast -ppm -outfile testoutint.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-static-int-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_INT} -DFILE=testoutint.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-static-fast djpeg-static -dct fast -ppm -outfile testoutfst.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-static-fast-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FAST} -DFILE=testoutfst.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-static-float djpeg-static -dct float -ppm -outfile testoutflt.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
if(WITH_SIMD)
|
||||
add_test(djpeg-static-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FLOAT} -DFILE=testoutflt.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
else()
|
||||
add_test(djpeg-static-float-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FLOAT_NOSIMD} -DFILE=testoutflt.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endif()
|
||||
foreach(scale 2_1 15_8 7_4 13_8 3_2 11_8 5_4 9_8 7_8 3_4 5_8 1_2 3_8 1_4 1_8)
|
||||
string(REGEX REPLACE "_" "/" scalearg ${scale})
|
||||
add_test(djpeg-static-int-${scale} djpeg-static -dct int -nosmooth -scale ${scalearg} -ppm -outfile testoutint${scale}.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-static-int-${scale}-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_INT_${scale}} -DFILE=testoutint${scale}.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endforeach()
|
||||
add_test(djpeg-static-fast-1_2 djpeg-static -dct fast -scale 1/2 -ppm -outfile testoutfst1_2.ppm ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-static-fast-1_2-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_FAST_1_2} -DFILE=testoutfst1_2.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(djpeg-static-256 djpeg-static -dct int -bmp -colors 256 -outfile testout.bmp ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(djpeg-static-256-cmp ${CMAKE_COMMAND} -DMD5=${MD5_BMP_256} -DFILE=testout.bmp -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-static-prog cjpeg-static -dct int -progressive -outfile testoutp.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-static-prog-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_PROG} -DFILE=testoutp.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(jpegtran-static-prog jpegtran-static -outfile testoutt.jpg testoutp.jpg)
|
||||
add_test(jpegtran-static-prog-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT} -DFILE=testoutt.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
if(WITH_ARITH_ENC)
|
||||
add_test(cjpeg-static-ari cjpeg-static -dct int -arithmetic -outfile testoutari.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-static-ari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_ARI} -DFILE=testoutari.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake )
|
||||
add_test(jpegtran-static-toari jpegtran-static -arithmetic -outfile testouta.jpg ${CMAKE_SOURCE_DIR}/testimages/testimgint.jpg)
|
||||
add_test(jpegtran-static-toari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_ARI} -DFILE=testouta.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(cjpeg-static-prog-ari cjpeg-static -dct int -progressive -arithmetic -sample 1x1 -outfile testoutpa.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.ppm)
|
||||
add_test(cjpeg-static-prog-ari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_PROG_ARI} -DFILE=testoutpa.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake )
|
||||
endif()
|
||||
if(WITH_ARITH_DEC)
|
||||
add_test(djpeg-static-ari djpeg-static -dct int -fast -ppm -outfile testoutari.ppm ${CMAKE_SOURCE_DIR}/testimages/testimgari.jpg)
|
||||
add_test(djpeg-static-ari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_PPM_ARI} -DFILE=testoutari.ppm -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
add_test(jpegtran-static-fromari jpegtran-static -outfile testouta.jpg ${CMAKE_SOURCE_DIR}/testimages/testimgari.jpg)
|
||||
add_test(jpegtran-static-fromari-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_INT} -DFILE=testouta.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
endif()
|
||||
add_test(jpegtran-static-crop jpegtran-static -crop 120x90+20+50 -transpose -perfect -outfile testoutcrop.jpg ${CMAKE_SOURCE_DIR}/testimages/testorig.jpg)
|
||||
add_test(jpegtran-static-crop-cmp ${CMAKE_COMMAND} -DMD5=${MD5_JPEG_CROP} -DFILE=testoutcrop.jpg -P ${CMAKE_SOURCE_DIR}/cmakescripts/md5cmp.cmake)
|
||||
|
||||
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)
|
||||
|
||||
install(TARGETS jpeg-static turbojpeg turbojpeg-static rdjpgcom wrjpgcom tjbench
|
||||
ARCHIVE DESTINATION lib
|
||||
LIBRARY DESTINATION lib
|
||||
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
|
||||
${CMAKE_SOURCE_DIR}/turbojpeg.h DESTINATION include)
|
||||
457
jpegturbo/ChangeLog.txt
Normal file
457
jpegturbo/ChangeLog.txt
Normal file
|
|
@ -0,0 +1,457 @@
|
|||
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 ARM v7s 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 ARM v6 and ARM v7 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
|
||||
405
jpegturbo/Makefile.am
Normal file
405
jpegturbo/Makefile.am
Normal file
|
|
@ -0,0 +1,405 @@
|
|||
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 0:0 -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
|
||||
|
||||
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 rdbmp.c rdgif.c \
|
||||
rdppm.c rdswitch.c rdtarga.c
|
||||
|
||||
cjpeg_LDADD = libjpeg.la
|
||||
|
||||
cjpeg_CFLAGS = -DBMP_SUPPORTED -DGIF_SUPPORTED -DPPM_SUPPORTED \
|
||||
-DTARGA_SUPPORTED
|
||||
|
||||
djpeg_SOURCES = cdjpeg.h cderror.h cdjpeg.c djpeg.c rdcolmap.c rdswitch.c \
|
||||
wrbmp.c wrgif.c wrppm.c wrtarga.c
|
||||
|
||||
djpeg_LDADD = libjpeg.la
|
||||
|
||||
djpeg_CFLAGS = -DBMP_SUPPORTED -DGIF_SUPPORTED -DPPM_SUPPORTED \
|
||||
-DTARGA_SUPPORTED
|
||||
|
||||
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
|
||||
|
||||
docdir = $(datadir)/doc
|
||||
dist_doc_DATA = README README-turbo.txt libjpeg.txt structure.txt usage.txt \
|
||||
wizard.txt
|
||||
|
||||
exampledir = $(datadir)/doc
|
||||
dist_example_DATA = example.c
|
||||
|
||||
|
||||
EXTRA_DIST = win release $(DOCS) testimages CMakeLists.txt \
|
||||
sharedlib/CMakeLists.txt cmakescripts libjpeg.map.in doc doxygen.config \
|
||||
jccolext.c jdcolext.c jdmrgext.c
|
||||
|
||||
dist-hook:
|
||||
rm -rf `find $(distdir) -name .svn`
|
||||
|
||||
|
||||
SUBDIRS += md5
|
||||
|
||||
MD5_JPEG_INT = 9a68f56bc76e466aa7e52f415d0f4a5f
|
||||
MD5_JPEG_FAST = 0e1502e7fa421835e376a314fac2a39f
|
||||
MD5_JPEG_FAST_100 = 7bf72a8e741d64eecb960c97323af77c
|
||||
MD5_JPEG_FLOAT = d1623885ffafcd40c684af09e3d65cd5
|
||||
MD5_JPEG_FLOAT_NOSIMD = fb4884c35f8273f498cb32879de5c455
|
||||
MD5_JPEG_INT_GRAY = 72b51f894b8f4a10b3ee3066770aa38d
|
||||
MD5_PPM_INT = d1ed0d11f076b842525271647716aeb8
|
||||
MD5_PPM_FAST = 048298a2d2410261c0533cb97bcfef23
|
||||
MD5_PPM_FLOAT = 7f5b446ee36b2630e06785b8d42af15f
|
||||
MD5_PPM_FLOAT_NOSIMD = 64072f1dbdc5b3a187777788604971a5
|
||||
MD5_PPM_INT_2_1 = 9f9de8c0612f8d06869b960b05abf9c9
|
||||
MD5_PPM_INT_15_8 = b6875bc070720b899566cc06459b63b7
|
||||
MD5_PPM_INT_7_4 = 06a177eae05f164fac57f7a2c346ee87
|
||||
MD5_PPM_INT_13_8 = bc3452573c8152f6ae552939ee19f82f
|
||||
MD5_PPM_INT_3_2 = f5a8b88a8a7f96016f04d259cf82ed67
|
||||
MD5_PPM_INT_11_8 = d8cc73c0aaacd4556569b59437ba00a5
|
||||
MD5_PPM_INT_5_4 = 32775dd9ad2ab90f4c5b219b53e0c86c
|
||||
MD5_PPM_INT_9_8 = d25e61bc7eac0002f5b393aa223747b6
|
||||
MD5_PPM_INT_7_8 = ddb564b7c74a09494016d6cd7502a946
|
||||
MD5_PPM_INT_3_4 = 8ed8e68808c3fbc4ea764fc9d2968646
|
||||
MD5_PPM_INT_5_8 = a3363274999da2366a024efae6d16c9b
|
||||
MD5_PPM_INT_1_2 = e692a315cea26b988c8e8b29a5dbcd81
|
||||
MD5_PPM_INT_3_8 = 79eca9175652ced755155c90e785a996
|
||||
MD5_PPM_INT_1_4 = 79cd778f8bf1a117690052cacdd54eca
|
||||
MD5_PPM_INT_1_8 = 391b3d4aca640c8567d6f8745eb2142f
|
||||
MD5_PPM_FAST_1_2 = f30bcf6d32ccd44cbdd9aeaacbd9454f
|
||||
MD5_BMP_256 = 4980185e3776e89bd931736e1cddeee6
|
||||
MD5_JPEG_ARI = e986fb0a637a8d833d96e8a6d6d84ea1
|
||||
MD5_PPM_ARI = 72b59a99bcf1de24c5b27d151bde2437
|
||||
MD5_JPEG_PROG = 1c4afddc05c0a43489ee54438a482d92
|
||||
MD5_JPEG_PROG_ARI = 0a8f1c8f66e113c3cf635df0a475a617
|
||||
MD5_JPEG_CROP = b4197f377e621c4e9b1d20471432610d
|
||||
|
||||
test: 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 -bi
|
||||
endif
|
||||
./tjunittest
|
||||
./tjunittest -alloc
|
||||
./tjunittest -yuv
|
||||
endif
|
||||
./cjpeg -dct int -outfile testoutint.jpg $(srcdir)/testimages/testorig.ppm
|
||||
md5/md5cmp $(MD5_JPEG_INT) testoutint.jpg
|
||||
./cjpeg -dct fast -opt -outfile testoutfst.jpg $(srcdir)/testimages/testorig.ppm
|
||||
md5/md5cmp $(MD5_JPEG_FAST) testoutfst.jpg
|
||||
./cjpeg -dct fast -quality 100 -opt -outfile testoutfst100.jpg $(srcdir)/testimages/testorig.ppm
|
||||
md5/md5cmp $(MD5_JPEG_FAST_100) testoutfst100.jpg
|
||||
./cjpeg -dct float -outfile testoutflt.jpg $(srcdir)/testimages/testorig.ppm
|
||||
if WITH_SSE_FLOAT_DCT
|
||||
md5/md5cmp $(MD5_JPEG_FLOAT) testoutflt.jpg
|
||||
else
|
||||
md5/md5cmp $(MD5_JPEG_FLOAT_NOSIMD) testoutflt.jpg
|
||||
endif
|
||||
./cjpeg -dct int -grayscale -outfile testoutgray.jpg $(srcdir)/testimages/testorig.ppm
|
||||
md5/md5cmp $(MD5_JPEG_INT_GRAY) testoutgray.jpg
|
||||
./djpeg -dct int -fast -ppm -outfile testoutint.ppm $(srcdir)/testimages/testorig.jpg
|
||||
md5/md5cmp $(MD5_PPM_INT) testoutint.ppm
|
||||
./djpeg -dct fast -ppm -outfile testoutfst.ppm $(srcdir)/testimages/testorig.jpg
|
||||
md5/md5cmp $(MD5_PPM_FAST) testoutfst.ppm
|
||||
./djpeg -dct float -ppm -outfile testoutflt.ppm $(srcdir)/testimages/testorig.jpg
|
||||
if WITH_SSE_FLOAT_DCT
|
||||
md5/md5cmp $(MD5_PPM_FLOAT) testoutflt.ppm
|
||||
else
|
||||
md5/md5cmp $(MD5_PPM_FLOAT_NOSIMD) testoutflt.ppm
|
||||
endif
|
||||
./djpeg -dct int -nosmooth -scale 2/1 -ppm -outfile testoutint2_1.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_2_1) testoutint2_1.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 15/8 -ppm -outfile testoutint15_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_15_8) testoutint15_8.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 7/4 -ppm -outfile testoutint7_4.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_7_4) testoutint7_4.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 13/8 -ppm -outfile testoutint13_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_13_8) testoutint13_8.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 3/2 -ppm -outfile testoutint3_2.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_3_2) testoutint3_2.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 11/8 -ppm -outfile testoutint11_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_11_8) testoutint11_8.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 5/4 -ppm -outfile testoutint5_4.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_5_4) testoutint5_4.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 9/8 -ppm -outfile testoutint9_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_9_8) testoutint9_8.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 7/8 -ppm -outfile testoutint7_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_7_8) testoutint7_8.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 3/4 -ppm -outfile testoutint3_4.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_3_4) testoutint3_4.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 5/8 -ppm -outfile testoutint5_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_5_8) testoutint5_8.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 1/2 -ppm -outfile testoutint1_2.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_1_2) testoutint1_2.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 3/8 -ppm -outfile testoutint3_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_3_8) testoutint3_8.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 1/4 -ppm -outfile testoutint1_4.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_1_4) testoutint1_4.ppm;
|
||||
./djpeg -dct int -nosmooth -scale 1/8 -ppm -outfile testoutint1_8.ppm $(srcdir)/testimages/testorig.jpg;
|
||||
md5/md5cmp $(MD5_PPM_INT_1_8) testoutint1_8.ppm;
|
||||
./djpeg -dct fast -scale 1/2 -ppm -outfile testoutfst1_2.ppm $(srcdir)/testimages/testorig.jpg
|
||||
md5/md5cmp $(MD5_PPM_FAST_1_2) testoutfst1_2.ppm
|
||||
./djpeg -dct int -bmp -colors 256 -outfile testout.bmp $(srcdir)/testimages/testorig.jpg
|
||||
md5/md5cmp $(MD5_BMP_256) testout.bmp
|
||||
if WITH_ARITH_ENC
|
||||
./cjpeg -dct int -arithmetic -outfile testoutari.jpg $(srcdir)/testimages/testorig.ppm
|
||||
md5/md5cmp $(MD5_JPEG_ARI) testoutari.jpg
|
||||
./jpegtran -arithmetic -outfile testouta.jpg $(srcdir)/testimages/testimgint.jpg
|
||||
md5/md5cmp $(MD5_JPEG_ARI) testouta.jpg
|
||||
./cjpeg -dct int -progressive -arithmetic -sample 1x1 -outfile testoutpa.jpg $(srcdir)/testimages/testorig.ppm
|
||||
md5/md5cmp $(MD5_JPEG_PROG_ARI) testoutpa.jpg
|
||||
endif
|
||||
if WITH_ARITH_DEC
|
||||
./djpeg -dct int -fast -ppm -outfile testoutari.ppm $(srcdir)/testimages/testimgari.jpg
|
||||
md5/md5cmp $(MD5_PPM_ARI) testoutari.ppm
|
||||
./jpegtran -outfile testouta.jpg $(srcdir)/testimages/testimgari.jpg
|
||||
md5/md5cmp $(MD5_JPEG_INT) testouta.jpg
|
||||
endif
|
||||
./cjpeg -dct int -progressive -outfile testoutp.jpg $(srcdir)/testimages/testorig.ppm
|
||||
md5/md5cmp $(MD5_JPEG_PROG) testoutp.jpg
|
||||
./jpegtran -outfile testoutt.jpg testoutp.jpg
|
||||
md5/md5cmp $(MD5_JPEG_INT) testoutt.jpg
|
||||
./jpegtran -crop 120x90+20+50 -transpose -perfect -outfile testoutcrop.jpg $(srcdir)/testimages/testorig.jpg
|
||||
md5/md5cmp $(MD5_JPEG_CROP) testoutcrop.jpg
|
||||
|
||||
|
||||
testclean:
|
||||
rm -f testout*
|
||||
rm -f *_GRAY_*.bmp
|
||||
rm -f *_GRAY_*.png
|
||||
rm -f *_GRAY_*.ppm
|
||||
rm -f *_GRAY_*.jpg
|
||||
rm -f *_GRAY.yuv
|
||||
rm -f *_420_*.bmp
|
||||
rm -f *_420_*.png
|
||||
rm -f *_420_*.ppm
|
||||
rm -f *_420_*.jpg
|
||||
rm -f *_420.yuv
|
||||
rm -f *_422_*.bmp
|
||||
rm -f *_422_*.png
|
||||
rm -f *_422_*.ppm
|
||||
rm -f *_422_*.jpg
|
||||
rm -f *_422.yuv
|
||||
rm -f *_444_*.bmp
|
||||
rm -f *_444_*.png
|
||||
rm -f *_444_*.ppm
|
||||
rm -f *_444_*.jpg
|
||||
rm -f *_444.yuv
|
||||
rm -f *_440_*.bmp
|
||||
rm -f *_440_*.png
|
||||
rm -f *_440_*.ppm
|
||||
rm -f *_440_*.jpg
|
||||
rm -f *_440.yuv
|
||||
|
||||
|
||||
tjtest:
|
||||
sh ./tjbenchtest
|
||||
if WITH_JAVA
|
||||
sh ./tjbenchtest.java
|
||||
endif
|
||||
|
||||
|
||||
pkgscripts/libjpeg-turbo.spec: pkgscripts/libjpeg-turbo.spec.tmpl
|
||||
cat pkgscripts/libjpeg-turbo.spec.tmpl | sed s@%{__prefix}@$(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}
|
||||
|
||||
else
|
||||
|
||||
iosdmg: all pkgscripts/makemacpkg pkgscripts/uninstall
|
||||
sh pkgscripts/makemacpkg -buildarmv6 ${BUILDDIRARMV6} -buildarmv7 ${BUILDDIRARMV7} -buildarmv7s ${BUILDDIRARMV7S}
|
||||
|
||||
endif
|
||||
|
||||
dmg: all pkgscripts/makemacpkg pkgscripts/uninstall
|
||||
sh pkgscripts/makemacpkg
|
||||
|
||||
pkgscripts/makecygwinpkg: pkgscripts/makecygwinpkg.tmpl
|
||||
cat pkgscripts/makecygwinpkg.tmpl | sed s@%{__prefix}@$(prefix)@g | \
|
||||
sed s@%{__docdir}@$(docdir)@g | sed s@%{__libdir}@$(libdir)@g \
|
||||
> pkgscripts/makecygwinpkg
|
||||
|
||||
cygwinpkg: all pkgscripts/makecygwinpkg
|
||||
sh pkgscripts/makecygwinpkg
|
||||
2264
jpegturbo/Makefile.in
Normal file
2264
jpegturbo/Makefile.in
Normal file
File diff suppressed because it is too large
Load diff
282
jpegturbo/README
Normal file
282
jpegturbo/README
Normal file
|
|
@ -0,0 +1,282 @@
|
|||
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
|
||||
==========================================
|
||||
|
||||
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 software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone,
|
||||
Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson,
|
||||
Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers,
|
||||
and other members of the Independent JPEG Group.
|
||||
|
||||
IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee
|
||||
(also known as JPEG, together with ITU-T SG16).
|
||||
|
||||
|
||||
DOCUMENTATION ROADMAP
|
||||
=====================
|
||||
|
||||
This file contains the following sections:
|
||||
|
||||
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.
|
||||
FILE FORMAT WARS Software *not* to get.
|
||||
TO DO Plans for future IJG releases.
|
||||
|
||||
Other documentation files in the distribution are:
|
||||
|
||||
User documentation:
|
||||
install.txt How to configure and install the IJG software.
|
||||
usage.txt Usage instructions for cjpeg, djpeg, jpegtran,
|
||||
rdjpgcom, and wrjpgcom.
|
||||
*.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.txt How to use the JPEG library in your own programs.
|
||||
example.c Sample code for calling the JPEG library.
|
||||
structure.txt Overview of the JPEG library's internal structure.
|
||||
coderules.txt Coding style rules --- please read if you contribute code.
|
||||
|
||||
Please read at least the files install.txt and usage.txt. Some information
|
||||
can also be found in the JPEG FAQ (Frequently Asked Questions) article. See
|
||||
ARCHIVE LOCATIONS below to find 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
|
||||
the order listed) before diving into the code.
|
||||
|
||||
|
||||
OVERVIEW
|
||||
========
|
||||
|
||||
This package contains C software to implement JPEG image encoding, decoding,
|
||||
and transcoding. JPEG (pronounced "jay-peg") is a standardized compression
|
||||
method for full-color and gray-scale images. JPEG's strong suit is compressing
|
||||
photographic images or other types of images that have smooth color and
|
||||
brightness transitions between neighboring pixels. Images with sharp lines or
|
||||
other abrupt features may not compress well with JPEG, and a higher JPEG
|
||||
quality may have to be used to avoid visible compression artifacts with such
|
||||
images.
|
||||
|
||||
JPEG is lossy, meaning that the output pixels are not necessarily identical to
|
||||
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 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.
|
||||
|
||||
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 "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.) Rather, it is intended to
|
||||
be reliable, portable, industrial-strength code. We do not claim to have
|
||||
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
|
||||
documentation, as described under LEGAL ISSUES.
|
||||
|
||||
|
||||
LEGAL ISSUES
|
||||
============
|
||||
|
||||
In plain English:
|
||||
|
||||
1. We don't promise that this software works. (But if you find any bugs,
|
||||
please let us know!)
|
||||
2. You can use this software for whatever you want. You don't have to pay us.
|
||||
3. You may not pretend that you wrote this software. If you use it in a
|
||||
program, you must acknowledge somewhere in your documentation that
|
||||
you've used the IJG code.
|
||||
|
||||
In legalese:
|
||||
|
||||
The authors make NO WARRANTY or representation, either express or implied,
|
||||
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) 1991-2012, Thomas G. Lane, Guido Vollbeding.
|
||||
All Rights Reserved except as specified below.
|
||||
|
||||
Permission is hereby granted to use, copy, modify, and distribute this
|
||||
software (or portions thereof) for any purpose, without fee, subject to these
|
||||
conditions:
|
||||
(1) If any part of the source code for this software is distributed, then this
|
||||
README file must be included, with this copyright and no-warranty notice
|
||||
unaltered; and any additions, deletions, or changes to the original files
|
||||
must be clearly indicated in accompanying documentation.
|
||||
(2) If only executable code is distributed, then the accompanying
|
||||
documentation must state that "this software is based in part on the work of
|
||||
the Independent JPEG Group".
|
||||
(3) Permission for use of this software is granted only if the user accepts
|
||||
full responsibility for any undesirable consequences; the authors accept
|
||||
NO LIABILITY for damages of any kind.
|
||||
|
||||
These conditions apply to any software derived from or based on the IJG code,
|
||||
not just to the unmodified library. If you use our work, you ought to
|
||||
acknowledge us.
|
||||
|
||||
Permission is NOT granted for the use of any IJG author's name or company name
|
||||
in advertising or publicity relating to this software or products derived from
|
||||
it. This software may be referred to only as "the Independent JPEG Group's
|
||||
software".
|
||||
|
||||
We specifically permit and encourage the use of this software as the basis of
|
||||
commercial products, provided that all warranty or liability claims are
|
||||
assumed by the product vendor.
|
||||
|
||||
|
||||
The Unix configuration script "configure" was produced with GNU Autoconf.
|
||||
It is copyright by the Free Software Foundation but is freely distributable.
|
||||
The same holds for its supporting scripts (config.guess, config.sub,
|
||||
ltmain.sh). Another support script, install-sh, is copyright by X Consortium
|
||||
but is also freely distributable.
|
||||
|
||||
The IJG distribution formerly included code to read and write GIF files.
|
||||
To avoid entanglement with the Unisys LZW patent, GIF reading support has
|
||||
been removed altogether, and the GIF writer has been simplified to produce
|
||||
"uncompressed GIFs". This technique does not use the LZW algorithm; the
|
||||
resulting GIF files are larger than usual, but are readable by all standard
|
||||
GIF decoders.
|
||||
|
||||
We are required to state that
|
||||
"The Graphics Interchange Format(c) is the Copyright property of
|
||||
CompuServe Incorporated. GIF(sm) is a Service Mark property of
|
||||
CompuServe Incorporated."
|
||||
|
||||
|
||||
REFERENCES
|
||||
==========
|
||||
|
||||
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
|
||||
Wallace, Gregory K. "The JPEG Still Picture Compression Standard",
|
||||
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 is
|
||||
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 IEEE,
|
||||
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 and Jean-loup Gailly, published by
|
||||
M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1. This book provides
|
||||
good explanations and example C code for a multitude of compression methods
|
||||
including JPEG. It is an excellent source if you are comfortable reading C
|
||||
code but don't know much about data compression in general. The book's JPEG
|
||||
sample code is far from industrial-strength, but when you are ready to look
|
||||
at a full implementation, you've got one here...
|
||||
|
||||
The best currently available description of JPEG is the textbook "JPEG Still
|
||||
Image Data Compression Standard" by William B. Pennebaker and Joan L.
|
||||
Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1.
|
||||
Price US$59.95, 638 pp. The book includes the complete text of the ISO JPEG
|
||||
standards (DIS 10918-1 and draft DIS 10918-2).
|
||||
|
||||
The original JPEG 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 numbers ISO/IEC IS
|
||||
10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of
|
||||
Continuous-tone Still Images, Part 2: Compliance testing" and has document
|
||||
numbers ISO/IEC IS 10918-2, ITU-T T.83.
|
||||
|
||||
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. JFIF 1.02 has been adopted as an Ecma International Technical Report
|
||||
and thus received a formal publication status. It is available as a free
|
||||
download in PDF format from
|
||||
http://www.ecma-international.org/publications/techreports/E-TR-098.htm.
|
||||
A PostScript version of the JFIF document is available at
|
||||
http://www.ijg.org/files/jfif.ps.gz. There is also a plain text version at
|
||||
http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures.
|
||||
|
||||
The TIFF 6.0 file format specification can be obtained by FTP from
|
||||
ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation scheme
|
||||
found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems.
|
||||
IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6).
|
||||
Instead, we recommend the JPEG design proposed by TIFF Technical Note #2
|
||||
(Compression tag 7). Copies of this Note can be obtained from
|
||||
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 www.ijg.org.
|
||||
The most recent released version can always be found there in
|
||||
directory "files". This particular version will be archived as
|
||||
http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible
|
||||
"zip" archive format as http://www.ijg.org/files/jpegsr8d.zip.
|
||||
|
||||
The JPEG FAQ (Frequently Asked Questions) article is a source of some
|
||||
general information about JPEG.
|
||||
It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/
|
||||
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/.
|
||||
If you don't have Web or FTP access, 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
|
||||
|
||||
|
||||
FILE FORMAT WARS
|
||||
================
|
||||
|
||||
The ISO/IEC JTC1/SC29/WG1 standards committee (also known as JPEG, together
|
||||
with ITU-T SG16) currently promotes different formats containing the name
|
||||
"JPEG" which are incompatible with original DCT-based JPEG. IJG therefore does
|
||||
not support these formats (see REFERENCES). Indeed, one of the original
|
||||
reasons for developing this free software was to help force convergence on
|
||||
common, interoperable format standards for JPEG files.
|
||||
Don't use an incompatible file format!
|
||||
(In any case, our decoder will remain capable of reading existing JPEG
|
||||
image files indefinitely.)
|
||||
|
||||
|
||||
TO DO
|
||||
=====
|
||||
|
||||
Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org.
|
||||
475
jpegturbo/README-turbo.txt
Executable file
475
jpegturbo/README-turbo.txt
Executable file
|
|
@ -0,0 +1,475 @@
|
|||
*******************************************************************************
|
||||
** 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.
|
||||
|
||||
======================
|
||||
Installation Directory
|
||||
======================
|
||||
|
||||
This document assumes that libjpeg-turbo will be installed in the default
|
||||
directory (/opt/libjpeg-turbo on Un*x and Mac systems and
|
||||
c:\libjpeg-turbo[-gcc][64] on Windows systems. If your installation of
|
||||
libjpeg-turbo resides in a different directory, then adjust the instructions
|
||||
accordingly.
|
||||
|
||||
=============================
|
||||
Replacing libjpeg at Run Time
|
||||
=============================
|
||||
|
||||
Un*x
|
||||
----
|
||||
|
||||
If a Un*x application is dynamically linked with libjpeg, then you can replace
|
||||
libjpeg with libjpeg-turbo at run time by manipulating LD_LIBRARY_PATH.
|
||||
For instance:
|
||||
|
||||
[Using libjpeg]
|
||||
> time cjpeg <vgl_5674_0098.ppm >vgl_5674_0098.jpg
|
||||
real 0m0.392s
|
||||
user 0m0.074s
|
||||
sys 0m0.020s
|
||||
|
||||
[Using libjpeg-turbo]
|
||||
> export LD_LIBRARY_PATH=/opt/libjpeg-turbo/{lib}:$LD_LIBRARY_PATH
|
||||
> time cjpeg <vgl_5674_0098.ppm >vgl_5674_0098.jpg
|
||||
real 0m0.109s
|
||||
user 0m0.029s
|
||||
sys 0m0.010s
|
||||
|
||||
({lib} = lib32 or lib64, depending on whether you wish to use the 32-bit or the
|
||||
64-bit version of libjpeg-turbo.)
|
||||
|
||||
System administrators can also replace the libjpeg symlinks in /usr/lib* with
|
||||
links to the libjpeg-turbo dynamic library located in /opt/libjpeg-turbo/{lib}.
|
||||
This will effectively accelerate every application that uses the libjpeg
|
||||
dynamic library on the system.
|
||||
|
||||
Windows
|
||||
-------
|
||||
|
||||
If a Windows application is dynamically linked with libjpeg, then you can
|
||||
replace libjpeg with libjpeg-turbo at run time by backing up the application's
|
||||
copy of jpeg62.dll, jpeg7.dll, or jpeg8.dll (assuming the application has its
|
||||
own local copy of this library) and copying the corresponding DLL from
|
||||
libjpeg-turbo into the application's install directory. The official
|
||||
libjpeg-turbo binary packages only provide jpeg62.dll. If the application uses
|
||||
jpeg7.dll or jpeg8.dll instead, then it will be necessary to build
|
||||
libjpeg-turbo from source (see "libjpeg v7 and v8 API/ABI Emulation" below.)
|
||||
|
||||
The following information is specific to the official libjpeg-turbo binary
|
||||
packages for Visual C++:
|
||||
|
||||
-- jpeg62.dll requires the Visual C++ 2008 C run-time DLL (msvcr90.dll).
|
||||
msvcr90.dll ships with more recent versions of Windows, but users of older
|
||||
Windows releases can obtain it from the Visual C++ 2008 Redistributable
|
||||
Package, which is available as a free download from Microsoft's web site.
|
||||
|
||||
-- Features of the libjpeg API that require passing a C run-time structure,
|
||||
such as a file handle, from an application to the library will probably not
|
||||
work with jpeg62.dll, unless the application is also built to use the Visual
|
||||
C++ 2008 C run-time DLL. In particular, this affects jpeg_stdio_dest() and
|
||||
jpeg_stdio_src().
|
||||
|
||||
Mac
|
||||
---
|
||||
|
||||
Mac applications typically embed their own copies of the libjpeg dylib inside
|
||||
the (hidden) application bundle, so it is not possible to globally replace
|
||||
libjpeg on OS X systems. Replacing the application's version of the libjpeg
|
||||
dylib would generally involve copying libjpeg.*.dylib from libjpeg-turbo into
|
||||
the appropriate place in the application bundle and using install_name_tool to
|
||||
repoint the libjpeg-turbo dylib to its new directory. This requires an
|
||||
advanced knowledge of OS X and would not survive an upgrade or a re-install of
|
||||
the application. Thus, it is not recommended for most users.
|
||||
|
||||
========================================
|
||||
Using libjpeg-turbo in Your Own Programs
|
||||
========================================
|
||||
|
||||
For the most part, libjpeg-turbo should work identically to libjpeg, so in
|
||||
most cases, an application can be built against libjpeg and then run against
|
||||
libjpeg-turbo. On Un*x systems and Cygwin, you can build against libjpeg-turbo
|
||||
instead of libjpeg by setting
|
||||
|
||||
CPATH=/opt/libjpeg-turbo/include
|
||||
and
|
||||
LIBRARY_PATH=/opt/libjpeg-turbo/{lib}
|
||||
|
||||
({lib} = lib32 or lib64, depending on whether you are building a 32-bit or a
|
||||
64-bit application.)
|
||||
|
||||
If using MinGW, then set
|
||||
|
||||
CPATH=/c/libjpeg-turbo-gcc[64]/include
|
||||
and
|
||||
LIBRARY_PATH=/c/libjpeg-turbo-gcc[64]/lib
|
||||
|
||||
Building against libjpeg-turbo is useful, for instance, if you want to build an
|
||||
application that leverages the libjpeg-turbo colorspace extensions (see below.)
|
||||
On Un*x systems, you would still need to manipulate LD_LIBRARY_PATH or create
|
||||
appropriate symlinks to use libjpeg-turbo at run time. On such systems, you
|
||||
can pass -R /opt/libjpeg-turbo/{lib} to the linker to force the use of
|
||||
libjpeg-turbo at run time rather than libjpeg (also useful if you want to
|
||||
leverage the colorspace extensions), or you can link against the libjpeg-turbo
|
||||
static library.
|
||||
|
||||
To force a Un*x or MinGW application to link against the static version of
|
||||
libjpeg-turbo, you can use the following linker options:
|
||||
|
||||
-Wl,-Bstatic -ljpeg -Wl,-Bdynamic
|
||||
|
||||
On OS X, simply add /opt/libjpeg-turbo/lib/libjpeg.a to the linker command
|
||||
line.
|
||||
|
||||
To build Visual C++ applications using libjpeg-turbo, add
|
||||
c:\libjpeg-turbo[64]\include to the system or user INCLUDE environment
|
||||
variable and c:\libjpeg-turbo[64]\lib to the system or user LIB environment
|
||||
variable, and then link against either jpeg.lib (to use the DLL version of
|
||||
libjpeg-turbo) or jpeg-static.lib (to use the static version of libjpeg-turbo.)
|
||||
|
||||
=====================
|
||||
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 still 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 are not guaranteed to
|
||||
be identical (the accuracy of the floating point DCT/IDCT is constant when
|
||||
using libjpeg-turbo's SIMD extensions, but otherwise, it can depend heavily on
|
||||
the compiler and 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 a bit 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.
|
||||
|
||||
-- When using the floating point IDCT, for the reasons stated above and also
|
||||
because the floating point IDCT algorithm was modified in libjpeg v8a to
|
||||
improve accuracy.
|
||||
|
||||
-- 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.
|
||||
182
jpegturbo/acinclude.m4
Normal file
182
jpegturbo/acinclude.m4
Normal file
|
|
@ -0,0 +1,182 @@
|
|||
# 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
|
||||
])
|
||||
7018
jpegturbo/aclocal.m4
vendored
Normal file
7018
jpegturbo/aclocal.m4
vendored
Normal file
File diff suppressed because it is too large
Load diff
274
jpegturbo/bmp.c
Normal file
274
jpegturbo/bmp.c
Normal file
|
|
@ -0,0 +1,274 @@
|
|||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#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 *srcptr=srcbuf, *srcptr2;
|
||||
int srcps=tjPixelSize[srcpf];
|
||||
int srcstride=srcbottomup? -w*srcps:w*srcps;
|
||||
unsigned char *dstptr=dstbuf, *dstptr2;
|
||||
int dstps=tjPixelSize[dstpf];
|
||||
int dststride=dstbottomup? -w*dstps:w*dstps;
|
||||
int row, col;
|
||||
|
||||
if(srcbottomup) srcptr=&srcbuf[w*srcps*(h-1)];
|
||||
if(dstbottomup) dstptr=&dstbuf[w*dstps*(h-1)];
|
||||
for(row=0; row<h; row++, srcptr+=srcstride, dstptr+=dststride)
|
||||
{
|
||||
for(col=0, srcptr2=srcptr, dstptr2=dstptr; col<w; col++, srcptr2+=srcps,
|
||||
dstptr2+=dstps)
|
||||
{
|
||||
dstptr2[tjRedOffset[dstpf]]=srcptr2[tjRedOffset[srcpf]];
|
||||
dstptr2[tjGreenOffset[dstpf]]=srcptr2[tjGreenOffset[srcpf]];
|
||||
dstptr2[tjBlueOffset[dstpf]]=srcptr2[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;
|
||||
}
|
||||
42
jpegturbo/bmp.h
Normal file
42
jpegturbo/bmp.h
Normal file
|
|
@ -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
|
||||
134
jpegturbo/cderror.h
Normal file
134
jpegturbo/cderror.h
Normal file
|
|
@ -0,0 +1,134 @@
|
|||
/*
|
||||
* cderror.h
|
||||
*
|
||||
* Copyright (C) 1994-1997, Thomas G. Lane.
|
||||
* Modified 2009 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file defines the error and message codes for the cjpeg/djpeg
|
||||
* applications. These strings are not needed as part of the JPEG library
|
||||
* proper.
|
||||
* Edit this file to add new codes, or to translate the message strings to
|
||||
* some other language.
|
||||
*/
|
||||
|
||||
/*
|
||||
* To define the enum list of message codes, include this file without
|
||||
* defining macro JMESSAGE. To create a message string table, include it
|
||||
* again with a suitable JMESSAGE definition (see jerror.c for an example).
|
||||
*/
|
||||
#ifndef JMESSAGE
|
||||
#ifndef CDERROR_H
|
||||
#define CDERROR_H
|
||||
/* First time through, define the enum list */
|
||||
#define JMAKE_ENUM_LIST
|
||||
#else
|
||||
/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */
|
||||
#define JMESSAGE(code,string)
|
||||
#endif /* CDERROR_H */
|
||||
#endif /* JMESSAGE */
|
||||
|
||||
#ifdef JMAKE_ENUM_LIST
|
||||
|
||||
typedef enum {
|
||||
|
||||
#define JMESSAGE(code,string) code ,
|
||||
|
||||
#endif /* JMAKE_ENUM_LIST */
|
||||
|
||||
JMESSAGE(JMSG_FIRSTADDONCODE=1000, NULL) /* Must be first entry! */
|
||||
|
||||
#ifdef BMP_SUPPORTED
|
||||
JMESSAGE(JERR_BMP_BADCMAP, "Unsupported BMP colormap format")
|
||||
JMESSAGE(JERR_BMP_BADDEPTH, "Only 8- and 24-bit BMP files are supported")
|
||||
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")
|
||||
JMESSAGE(JTRC_BMP_OS2, "%ux%u 24-bit OS2 BMP image")
|
||||
JMESSAGE(JTRC_BMP_OS2_MAPPED, "%ux%u 8-bit colormapped OS2 BMP image")
|
||||
#endif /* BMP_SUPPORTED */
|
||||
|
||||
#ifdef GIF_SUPPORTED
|
||||
JMESSAGE(JERR_GIF_BUG, "GIF output got confused")
|
||||
JMESSAGE(JERR_GIF_CODESIZE, "Bogus GIF codesize %d")
|
||||
JMESSAGE(JERR_GIF_COLORSPACE, "GIF output must be grayscale or RGB")
|
||||
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'")
|
||||
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")
|
||||
JMESSAGE(JWRN_GIF_CHAR, "Bogus char 0x%02x in GIF file, ignoring")
|
||||
JMESSAGE(JWRN_GIF_ENDCODE, "Premature end of GIF image")
|
||||
JMESSAGE(JWRN_GIF_NOMOREDATA, "Ran out of GIF bits")
|
||||
#endif /* GIF_SUPPORTED */
|
||||
|
||||
#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/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")
|
||||
JMESSAGE(JTRC_PPM_TEXT, "%ux%u text PPM image")
|
||||
#endif /* PPM_SUPPORTED */
|
||||
|
||||
#ifdef RLE_SUPPORTED
|
||||
JMESSAGE(JERR_RLE_BADERROR, "Bogus error code from RLE library")
|
||||
JMESSAGE(JERR_RLE_COLORSPACE, "RLE output must be grayscale or RGB")
|
||||
JMESSAGE(JERR_RLE_DIMENSIONS, "Image dimensions (%ux%u) too large for RLE")
|
||||
JMESSAGE(JERR_RLE_EMPTY, "Empty RLE file")
|
||||
JMESSAGE(JERR_RLE_EOF, "Premature EOF in RLE header")
|
||||
JMESSAGE(JERR_RLE_MEM, "Insufficient memory for RLE header")
|
||||
JMESSAGE(JERR_RLE_NOT, "Not an RLE file")
|
||||
JMESSAGE(JERR_RLE_TOOMANYCHANNELS, "Cannot handle %d output channels for RLE")
|
||||
JMESSAGE(JERR_RLE_UNSUPPORTED, "Cannot handle this RLE setup")
|
||||
JMESSAGE(JTRC_RLE, "%ux%u full-color RLE file")
|
||||
JMESSAGE(JTRC_RLE_FULLMAP, "%ux%u full-color RLE file with map of length %d")
|
||||
JMESSAGE(JTRC_RLE_GRAY, "%ux%u grayscale RLE file")
|
||||
JMESSAGE(JTRC_RLE_MAPGRAY, "%ux%u grayscale RLE file with map of length %d")
|
||||
JMESSAGE(JTRC_RLE_MAPPED, "%ux%u colormapped RLE file with map of length %d")
|
||||
#endif /* RLE_SUPPORTED */
|
||||
|
||||
#ifdef TARGA_SUPPORTED
|
||||
JMESSAGE(JERR_TGA_BADCMAP, "Unsupported Targa colormap format")
|
||||
JMESSAGE(JERR_TGA_BADPARMS, "Invalid or unsupported Targa file")
|
||||
JMESSAGE(JERR_TGA_COLORSPACE, "Targa output must be grayscale or RGB")
|
||||
JMESSAGE(JTRC_TGA, "%ux%u RGB Targa image")
|
||||
JMESSAGE(JTRC_TGA_GRAY, "%ux%u grayscale Targa image")
|
||||
JMESSAGE(JTRC_TGA_MAPPED, "%ux%u colormapped Targa image")
|
||||
#else
|
||||
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")
|
||||
JMESSAGE(JERR_TOO_MANY_COLORS,
|
||||
"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")
|
||||
#else
|
||||
JMESSAGE(JERR_UNKNOWN_FORMAT, "Unrecognized input file format")
|
||||
#endif
|
||||
JMESSAGE(JERR_UNSUPPORTED_FORMAT, "Unsupported output file format")
|
||||
|
||||
#ifdef JMAKE_ENUM_LIST
|
||||
|
||||
JMSG_LASTADDONCODE
|
||||
} ADDON_MESSAGE_CODE;
|
||||
|
||||
#undef JMAKE_ENUM_LIST
|
||||
#endif /* JMAKE_ENUM_LIST */
|
||||
|
||||
/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */
|
||||
#undef JMESSAGE
|
||||
181
jpegturbo/cdjpeg.c
Normal file
181
jpegturbo/cdjpeg.c
Normal file
|
|
@ -0,0 +1,181 @@
|
|||
/*
|
||||
* cdjpeg.c
|
||||
*
|
||||
* Copyright (C) 1991-1997, 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 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 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
|
||||
|
||||
|
||||
/*
|
||||
* 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;
|
||||
|
||||
void /* must be global for Manx C */
|
||||
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);
|
||||
}
|
||||
|
||||
|
||||
GLOBAL(void)
|
||||
enable_signal_catcher (j_common_ptr cinfo)
|
||||
{
|
||||
sig_cinfo = cinfo;
|
||||
#ifdef SIGINT /* not all systems have SIGINT */
|
||||
signal(SIGINT, signal_catcher);
|
||||
#endif
|
||||
#ifdef SIGTERM /* not all systems have SIGTERM */
|
||||
signal(SIGTERM, signal_catcher);
|
||||
#endif
|
||||
}
|
||||
|
||||
#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;
|
||||
}
|
||||
187
jpegturbo/cdjpeg.h
Normal file
187
jpegturbo/cdjpeg.h
Normal file
|
|
@ -0,0 +1,187 @@
|
|||
/*
|
||||
* cdjpeg.h
|
||||
*
|
||||
* Copyright (C) 1994-1997, 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 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_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 "cderror.h" /* get application-specific error codes */
|
||||
|
||||
|
||||
/*
|
||||
* Object interface for cjpeg's source file decoding modules
|
||||
*/
|
||||
|
||||
typedef struct cjpeg_source_struct * cjpeg_source_ptr;
|
||||
|
||||
struct cjpeg_source_struct {
|
||||
JMETHOD(void, start_input, (j_compress_ptr cinfo,
|
||||
cjpeg_source_ptr sinfo));
|
||||
JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo,
|
||||
cjpeg_source_ptr sinfo));
|
||||
JMETHOD(void, finish_input, (j_compress_ptr cinfo,
|
||||
cjpeg_source_ptr sinfo));
|
||||
|
||||
FILE *input_file;
|
||||
|
||||
JSAMPARRAY buffer;
|
||||
JDIMENSION buffer_height;
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* Object interface for djpeg's output file encoding modules
|
||||
*/
|
||||
|
||||
typedef struct djpeg_dest_struct * djpeg_dest_ptr;
|
||||
|
||||
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,
|
||||
djpeg_dest_ptr dinfo));
|
||||
/* Emit the specified number of pixel rows from the buffer. */
|
||||
JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo,
|
||||
djpeg_dest_ptr dinfo,
|
||||
JDIMENSION rows_supplied));
|
||||
/* Finish up at the end of the image. */
|
||||
JMETHOD(void, finish_output, (j_decompress_ptr cinfo,
|
||||
djpeg_dest_ptr dinfo));
|
||||
|
||||
/* Target file spec; filled in by djpeg.c after object is created. */
|
||||
FILE * output_file;
|
||||
|
||||
/* Output pixel-row buffer. Created by module init or start_output.
|
||||
* Width is cinfo->output_width * cinfo->output_components;
|
||||
* height is buffer_height.
|
||||
*/
|
||||
JSAMPARRAY buffer;
|
||||
JDIMENSION buffer_height;
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* cjpeg/djpeg may need to perform extra passes to convert to or from
|
||||
* the source/destination file format. The JPEG library does not know
|
||||
* about these passes, but we'd like them to be counted by the progress
|
||||
* monitor. We use an expanded progress monitor object to hold the
|
||||
* additional pass count.
|
||||
*/
|
||||
|
||||
struct cdjpeg_progress_mgr {
|
||||
struct jpeg_progress_mgr pub; /* fields known to JPEG library */
|
||||
int completed_extra_passes; /* extra passes completed */
|
||||
int total_extra_passes; /* total extra */
|
||||
/* last printed percentage stored here to avoid multiple printouts */
|
||||
int percent_done;
|
||||
};
|
||||
|
||||
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_quant_tables RdQTables
|
||||
#define read_scan_script RdScnScript
|
||||
#define set_quality_ratings SetQRates
|
||||
#define set_quant_slots SetQSlots
|
||||
#define set_sample_factors SetSFacts
|
||||
#define read_color_map RdCMap
|
||||
#define enable_signal_catcher EnSigCatcher
|
||||
#define start_progress_monitor StProgMon
|
||||
#define end_progress_monitor EnProgMon
|
||||
#define read_stdin RdStdin
|
||||
#define write_stdout WrStdout
|
||||
#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(djpeg_dest_ptr) jinit_write_bmp JPP((j_decompress_ptr cinfo,
|
||||
boolean is_os2));
|
||||
EXTERN(cjpeg_source_ptr) jinit_read_gif JPP((j_compress_ptr cinfo));
|
||||
EXTERN(djpeg_dest_ptr) jinit_write_gif JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(cjpeg_source_ptr) jinit_read_ppm JPP((j_compress_ptr cinfo));
|
||||
EXTERN(djpeg_dest_ptr) jinit_write_ppm JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(cjpeg_source_ptr) jinit_read_rle JPP((j_compress_ptr cinfo));
|
||||
EXTERN(djpeg_dest_ptr) jinit_write_rle JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(cjpeg_source_ptr) jinit_read_targa JPP((j_compress_ptr cinfo));
|
||||
EXTERN(djpeg_dest_ptr) jinit_write_targa JPP((j_decompress_ptr cinfo));
|
||||
|
||||
/* cjpeg support routines (in rdswitch.c) */
|
||||
|
||||
EXTERN(boolean) read_quant_tables JPP((j_compress_ptr cinfo, char * filename,
|
||||
boolean force_baseline));
|
||||
EXTERN(boolean) read_scan_script JPP((j_compress_ptr cinfo, char * filename));
|
||||
EXTERN(boolean) set_quality_ratings JPP((j_compress_ptr cinfo, char *arg,
|
||||
boolean force_baseline));
|
||||
EXTERN(boolean) set_quant_slots JPP((j_compress_ptr cinfo, char *arg));
|
||||
EXTERN(boolean) set_sample_factors JPP((j_compress_ptr cinfo, char *arg));
|
||||
|
||||
/* djpeg support routines (in rdcolmap.c) */
|
||||
|
||||
EXTERN(void) read_color_map JPP((j_decompress_ptr cinfo, FILE * infile));
|
||||
|
||||
/* common support routines (in cdjpeg.c) */
|
||||
|
||||
EXTERN(void) enable_signal_catcher JPP((j_common_ptr cinfo));
|
||||
EXTERN(void) start_progress_monitor JPP((j_common_ptr cinfo,
|
||||
cd_progress_ptr progress));
|
||||
EXTERN(void) end_progress_monitor JPP((j_common_ptr cinfo));
|
||||
EXTERN(boolean) keymatch JPP((char * arg, const char * keyword, int minchars));
|
||||
EXTERN(FILE *) read_stdin JPP((void));
|
||||
EXTERN(FILE *) write_stdout JPP((void));
|
||||
|
||||
/* miscellaneous useful macros */
|
||||
|
||||
#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */
|
||||
#define READ_BINARY "r"
|
||||
#define WRITE_BINARY "w"
|
||||
#else
|
||||
#ifdef VMS /* VMS is very nonstandard */
|
||||
#define READ_BINARY "rb", "ctx=stm"
|
||||
#define WRITE_BINARY "wb", "ctx=stm"
|
||||
#else /* standard ANSI-compliant case */
|
||||
#define READ_BINARY "rb"
|
||||
#define WRITE_BINARY "wb"
|
||||
#endif
|
||||
#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
|
||||
296
jpegturbo/change.log
Normal file
296
jpegturbo/change.log
Normal file
|
|
@ -0,0 +1,296 @@
|
|||
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
|
||||
---------------------
|
||||
|
||||
Correct bugs with grayscale images having v_samp_factor > 1.
|
||||
|
||||
jpeg_write_raw_data() now supports output suspension.
|
||||
|
||||
Correct bugs in "configure" script for case of compiling in
|
||||
a directory other than the one containing the source files.
|
||||
|
||||
Repair bug in jquant1.c: sometimes didn't use as many colors as it could.
|
||||
|
||||
Borland C makefile and jconfig file work under either MS-DOS or OS/2.
|
||||
|
||||
Miscellaneous improvements to documentation.
|
||||
|
||||
|
||||
Version 5a 7-Dec-94
|
||||
--------------------
|
||||
|
||||
Changed color conversion roundoff behavior so that grayscale values are
|
||||
represented exactly. (This causes test image files to change.)
|
||||
|
||||
Make ordered dither use 16x16 instead of 4x4 pattern for a small quality
|
||||
improvement.
|
||||
|
||||
New configure script based on latest GNU Autoconf.
|
||||
Fix configure script to handle CFLAGS correctly.
|
||||
Rename *.auto files to *.cfg, so that configure script still works if
|
||||
file names have been truncated for DOS.
|
||||
|
||||
Fix bug in rdbmp.c: didn't allow for extra data between header and image.
|
||||
|
||||
Modify rdppm.c/wrppm.c to handle 2-byte raw PPM/PGM formats for 12-bit data.
|
||||
|
||||
Fix several bugs in rdrle.c.
|
||||
|
||||
NEED_SHORT_EXTERNAL_NAMES option was broken.
|
||||
|
||||
Revise jerror.h/jerror.c for more flexibility in message table.
|
||||
|
||||
Repair oversight in jmemname.c NO_MKTEMP case: file could be there
|
||||
but unreadable.
|
||||
|
||||
|
||||
Version 5 24-Sep-94
|
||||
--------------------
|
||||
|
||||
Version 5 represents a nearly complete redesign and rewrite of the IJG
|
||||
software. Major user-visible changes include:
|
||||
* Automatic configuration simplifies installation for most Unix systems.
|
||||
* A range of speed vs. image quality tradeoffs are supported.
|
||||
This includes resizing of an image during decompression: scaling down
|
||||
by a factor of 1/2, 1/4, or 1/8 is handled very efficiently.
|
||||
* New programs rdjpgcom and wrjpgcom allow insertion and extraction
|
||||
of text comments in a JPEG file.
|
||||
|
||||
The application programmer's interface to the library has changed completely.
|
||||
Notable improvements include:
|
||||
* We have eliminated the use of callback routines for handling the
|
||||
uncompressed image data. The application now sees the library as a
|
||||
set of routines that it calls to read or write image data on a
|
||||
scanline-by-scanline basis.
|
||||
* The application image data is represented in a conventional interleaved-
|
||||
pixel format, rather than as a separate array for each color channel.
|
||||
This can save a copying step in many programs.
|
||||
* The handling of compressed data has been cleaned up: the application can
|
||||
supply routines to source or sink the compressed data. It is possible to
|
||||
suspend processing on source/sink buffer overrun, although this is not
|
||||
supported in all operating modes.
|
||||
* All static state has been eliminated from the library, so that multiple
|
||||
instances of compression or decompression can be active concurrently.
|
||||
* JPEG abbreviated datastream formats are supported, ie, quantization and
|
||||
Huffman tables can be stored separately from the image data.
|
||||
* And not only that, but the documentation of the library has improved
|
||||
considerably!
|
||||
|
||||
|
||||
The last widely used release before the version 5 rewrite was version 4A of
|
||||
18-Feb-93. Change logs before that point have been discarded, since they
|
||||
are not of much interest after the rewrite.
|
||||
336
jpegturbo/cjpeg.1
Normal file
336
jpegturbo/cjpeg.1
Normal file
|
|
@ -0,0 +1,336 @@
|
|||
.TH CJPEG 1 "18 January 2013"
|
||||
.SH NAME
|
||||
cjpeg \- compress an image file to a JPEG file
|
||||
.SH SYNOPSIS
|
||||
.B cjpeg
|
||||
[
|
||||
.I options
|
||||
]
|
||||
[
|
||||
.I filename
|
||||
]
|
||||
.LP
|
||||
.SH DESCRIPTION
|
||||
.LP
|
||||
.B cjpeg
|
||||
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, 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,
|
||||
.B \-grayscale
|
||||
may be written
|
||||
.B \-gray
|
||||
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 \-BMP
|
||||
is the same as
|
||||
.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[,...]"
|
||||
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 BMP file, because
|
||||
.B cjpeg
|
||||
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.
|
||||
.B \-optimize
|
||||
usually makes the JPEG file a little smaller, but
|
||||
.B cjpeg
|
||||
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
|
||||
.BR cjpeg ;
|
||||
for such files you must specify
|
||||
.B \-targa
|
||||
to make
|
||||
.B cjpeg
|
||||
treat the input as Targa format.
|
||||
For most Targa files, you won't need this switch.
|
||||
.PP
|
||||
The
|
||||
.B \-quality
|
||||
switch lets you trade off compressed file size against quality of the
|
||||
reconstructed image: the higher the quality setting, the larger the JPEG file,
|
||||
and the closer the output image will be to the original input. Normally you
|
||||
want to use the lowest quality setting (smallest file) that decompresses into
|
||||
something visually indistinguishable from the original image. For this
|
||||
purpose the quality setting should be between 50 and 95; the default of 75 is
|
||||
often about right. If you see defects at
|
||||
.B \-quality
|
||||
75, then go up 5 or 10 counts at a time until you are happy with the output
|
||||
image. (The optimal setting will vary from one image to another.)
|
||||
.PP
|
||||
.B \-quality
|
||||
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
|
||||
.B not
|
||||
recommended for normal use; the compressed file size goes up dramatically for
|
||||
hardly any gain in output image quality.
|
||||
.PP
|
||||
In the other direction, quality values below 50 will produce very small files
|
||||
of low image quality. Settings around 5 to 10 might be useful in preparing an
|
||||
index of a large image library, for example. Try
|
||||
.B \-quality
|
||||
2 (or so) for some amusing Cubist effects. (Note: quality
|
||||
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
|
||||
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).
|
||||
.TP
|
||||
.B \-dct float
|
||||
Use floating-point DCT method.
|
||||
The float method is very slightly more accurate than the int method, but is
|
||||
much slower unless your machine has very fast floating-point hardware. Also
|
||||
note that results of the floating-point method may vary slightly across
|
||||
machines, while the integer methods should give the same results everywhere.
|
||||
The fast integer method is much less accurate than the other two.
|
||||
.TP
|
||||
.BI \-restart " N"
|
||||
Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is
|
||||
attached to the number.
|
||||
.B \-restart 0
|
||||
(the default) means no restart markers.
|
||||
.TP
|
||||
.BI \-smooth " N"
|
||||
Smooth the input image to eliminate dithering noise. N, ranging from 1 to
|
||||
100, indicates the strength of smoothing. 0 (the default) means no smoothing.
|
||||
.TP
|
||||
.BI \-maxmemory " N"
|
||||
Set limit for amount of memory to use in processing large images. Value is
|
||||
in thousands of bytes, or millions of bytes if "M" is attached to the
|
||||
number. For example,
|
||||
.B \-max 4m
|
||||
selects 4000000 bytes. If more space is needed, temporary files will be used.
|
||||
.TP
|
||||
.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
|
||||
give more output. Also, version information is printed at startup.
|
||||
.TP
|
||||
.B \-debug
|
||||
Same as
|
||||
.BR \-verbose .
|
||||
.PP
|
||||
The
|
||||
.B \-restart
|
||||
option inserts extra markers that allow a JPEG decoder to resynchronize after
|
||||
a transmission error. Without restart markers, any damage to a compressed
|
||||
file will usually ruin the image from the point of the error to the end of the
|
||||
image; with restart markers, the damage is usually confined to the portion of
|
||||
the image up to the next restart marker. Of course, the restart markers
|
||||
occupy extra space. We recommend
|
||||
.B \-restart 1
|
||||
for images that will be transmitted across unreliable networks such as Usenet.
|
||||
.PP
|
||||
The
|
||||
.B \-smooth
|
||||
option filters the input to eliminate fine-scale noise. This is often useful
|
||||
when converting dithered images to JPEG: a moderate smoothing factor of 10 to
|
||||
50 gets rid of dithering patterns in the input file, resulting in a smaller
|
||||
JPEG file and a better-looking image. Too large a smoothing factor will
|
||||
visibly blur the image, however.
|
||||
.PP
|
||||
Switches for wizards:
|
||||
.TP
|
||||
.B \-baseline
|
||||
Force baseline-compatible quantization tables to be generated. This clamps
|
||||
quantization values to 8 bits even at low quality settings. (This switch is
|
||||
poorly named, since it does not ensure that the output is actually baseline
|
||||
JPEG. For example, you can use
|
||||
.B \-baseline
|
||||
and
|
||||
.B \-progressive
|
||||
together.)
|
||||
.TP
|
||||
.BI \-qtables " file"
|
||||
Use the quantization tables given in the specified text file.
|
||||
.TP
|
||||
.BI \-qslots " N[,...]"
|
||||
Select which quantization table to use for each color component.
|
||||
.TP
|
||||
.BI \-sample " HxV[,...]"
|
||||
Set JPEG sampling factors for each color component.
|
||||
.TP
|
||||
.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. These switches are
|
||||
documented further in the file wizard.txt.
|
||||
.SH EXAMPLES
|
||||
.LP
|
||||
This example compresses the PPM file foo.ppm with a quality factor of
|
||||
60 and saves the output as foo.jpg:
|
||||
.IP
|
||||
.B cjpeg \-quality
|
||||
.I 60 foo.ppm
|
||||
.B >
|
||||
.I foo.jpg
|
||||
.SH HINTS
|
||||
Color GIF files are not the ideal input for JPEG; JPEG is really intended for
|
||||
compressing full-color (24-bit) images. In particular, don't try to convert
|
||||
cartoons, line drawings, and other images that have only a few distinct
|
||||
colors. GIF works great on these, JPEG does not. If you want to convert a
|
||||
GIF to JPEG, you should experiment with
|
||||
.BR cjpeg 's
|
||||
.B \-quality
|
||||
and
|
||||
.B \-smooth
|
||||
options to get a satisfactory conversion.
|
||||
.B \-smooth 10
|
||||
or so is often helpful.
|
||||
.PP
|
||||
Avoid running an image through a series of JPEG compression/decompression
|
||||
cycles. Image quality loss will accumulate; after ten or so cycles the image
|
||||
may be noticeably worse than it was after one cycle. It's best to use a
|
||||
lossless format while manipulating an image, then convert to JPEG format when
|
||||
you are ready to file the image away.
|
||||
.PP
|
||||
The
|
||||
.B \-optimize
|
||||
option to
|
||||
.B cjpeg
|
||||
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. (At present,
|
||||
.B \-optimize
|
||||
mode is always selected when generating progressive JPEG files.)
|
||||
.SH ENVIRONMENT
|
||||
.TP
|
||||
.B JPEGMEM
|
||||
If this environment variable is set, its value is the default memory limit.
|
||||
The value is specified as described for the
|
||||
.B \-maxmemory
|
||||
switch.
|
||||
.B JPEGMEM
|
||||
overrides the default value specified when the program was compiled, and
|
||||
itself is overridden by an explicit
|
||||
.BR \-maxmemory .
|
||||
.SH SEE ALSO
|
||||
.BR djpeg (1),
|
||||
.BR jpegtran (1),
|
||||
.BR rdjpgcom (1),
|
||||
.BR wrjpgcom (1)
|
||||
.br
|
||||
.BR ppm (5),
|
||||
.BR pgm (5)
|
||||
.br
|
||||
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
|
||||
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
|
||||
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.)
|
||||
641
jpegturbo/cjpeg.c
Normal file
641
jpegturbo/cjpeg.c
Normal file
|
|
@ -0,0 +1,641 @@
|
|||
/*
|
||||
* cjpeg.c
|
||||
*
|
||||
* This file was 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, 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.
|
||||
* It should work on any system with Unix- or MS-DOS-style command lines.
|
||||
*
|
||||
* Two different command line styles are permitted, depending on the
|
||||
* compile-time switch TWO_FILE_COMMANDLINE:
|
||||
* cjpeg [options] inputfile outputfile
|
||||
* 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).
|
||||
* The second style is convenient on Unix but is unhelpful on systems that
|
||||
* 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
|
||||
* works regardless of which command line style is used.
|
||||
*/
|
||||
|
||||
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
|
||||
#include "jversion.h" /* for version message */
|
||||
#include "config.h"
|
||||
|
||||
#ifdef USE_CCOMMAND /* command-line reader for Macintosh */
|
||||
#ifdef __MWERKS__
|
||||
#include <SIOUX.h> /* Metrowerks needs this */
|
||||
#include <console.h> /* ... and this */
|
||||
#endif
|
||||
#ifdef THINK_C
|
||||
#include <console.h> /* Think declares it here */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
/* Create the add-on message string table. */
|
||||
|
||||
#define JMESSAGE(code,string) string ,
|
||||
|
||||
static const char * const cdjpeg_message_table[] = {
|
||||
#include "cderror.h"
|
||||
NULL
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* This routine determines what format the input file is,
|
||||
* and selects the appropriate input-reading module.
|
||||
*
|
||||
* To determine which family of input formats the file belongs to,
|
||||
* we may look only at the first byte of the file, since C does not
|
||||
* guarantee that more than one character can be pushed back with ungetc.
|
||||
* Looking at additional bytes would require one of these approaches:
|
||||
* 1) assume we can fseek() the input file (fails for piped input);
|
||||
* 2) assume we can push back more than one character (works in
|
||||
* some C implementations, but unportable);
|
||||
* 3) provide our own buffering (breaks input readers that want to use
|
||||
* stdio directly, such as the RLE library);
|
||||
* or 4) don't put back the data, and modify the input_init methods to assume
|
||||
* they start reading after the start of file (also breaks RLE library).
|
||||
* #1 is attractive for MS-DOS but is untenable on Unix.
|
||||
*
|
||||
* The most portable solution for file types that can't be identified by their
|
||||
* first byte is to make the user tell us what they are. This is also the
|
||||
* only approach for "raw" file types that contain only arbitrary values.
|
||||
* We presently apply this method for Targa files. Most of the time Targa
|
||||
* files start with 0x00, so we recognize that case. Potentially, however,
|
||||
* a Targa file could start with any byte value (byte 0 is the length of the
|
||||
* seldom-used ID field), so we provide a switch to force Targa input mode.
|
||||
*/
|
||||
|
||||
static boolean is_targa; /* records user -targa switch */
|
||||
|
||||
|
||||
LOCAL(cjpeg_source_ptr)
|
||||
select_file_type (j_compress_ptr cinfo, FILE * infile)
|
||||
{
|
||||
int c;
|
||||
|
||||
if (is_targa) {
|
||||
#ifdef TARGA_SUPPORTED
|
||||
return jinit_read_targa(cinfo);
|
||||
#else
|
||||
ERREXIT(cinfo, JERR_TGA_NOTCOMP);
|
||||
#endif
|
||||
}
|
||||
|
||||
if ((c = getc(infile)) == EOF)
|
||||
ERREXIT(cinfo, JERR_INPUT_EMPTY);
|
||||
if (ungetc(c, infile) == EOF)
|
||||
ERREXIT(cinfo, JERR_UNGETC_FAILED);
|
||||
|
||||
switch (c) {
|
||||
#ifdef BMP_SUPPORTED
|
||||
case 'B':
|
||||
return jinit_read_bmp(cinfo);
|
||||
#endif
|
||||
#ifdef GIF_SUPPORTED
|
||||
case 'G':
|
||||
return jinit_read_gif(cinfo);
|
||||
#endif
|
||||
#ifdef PPM_SUPPORTED
|
||||
case 'P':
|
||||
return jinit_read_ppm(cinfo);
|
||||
#endif
|
||||
#ifdef RLE_SUPPORTED
|
||||
case 'R':
|
||||
return jinit_read_rle(cinfo);
|
||||
#endif
|
||||
#ifdef TARGA_SUPPORTED
|
||||
case 0x00:
|
||||
return jinit_read_targa(cinfo);
|
||||
#endif
|
||||
default:
|
||||
ERREXIT(cinfo, JERR_UNKNOWN_FORMAT);
|
||||
break;
|
||||
}
|
||||
|
||||
return NULL; /* suppress compiler warnings */
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Argument-parsing code.
|
||||
* The switch parser is designed to be useful with DOS-style command line
|
||||
* syntax, ie, intermixed switches and file names, where only the switches
|
||||
* to the left of a given file name affect processing of that file.
|
||||
* The main program in this file doesn't actually use this capability...
|
||||
*/
|
||||
|
||||
|
||||
static const char * progname; /* program name for error messages */
|
||||
static char * outfilename; /* for -outfile switch */
|
||||
boolean memdst; /* for -memdst switch */
|
||||
|
||||
|
||||
LOCAL(void)
|
||||
usage (void)
|
||||
/* complain about bad command line */
|
||||
{
|
||||
fprintf(stderr, "usage: %s [switches] ", progname);
|
||||
#ifdef TWO_FILE_COMMANDLINE
|
||||
fprintf(stderr, "inputfile outputfile\n");
|
||||
#else
|
||||
fprintf(stderr, "[inputfile]\n");
|
||||
#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, " -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)" : ""));
|
||||
#endif
|
||||
#ifdef DCT_IFAST_SUPPORTED
|
||||
fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n",
|
||||
(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)" : ""));
|
||||
#endif
|
||||
fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n");
|
||||
#ifdef INPUT_SMOOTHING_SUPPORTED
|
||||
fprintf(stderr, " -smooth N Smooth dithered input (N=1..100 is strength)\n");
|
||||
#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, "Switches for wizards:\n");
|
||||
fprintf(stderr, " -baseline Force baseline quantization tables\n");
|
||||
fprintf(stderr, " -qtables file Use quantization tables given in file\n");
|
||||
fprintf(stderr, " -qslots N[,...] Set component quantization tables\n");
|
||||
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(int)
|
||||
parse_switches (j_compress_ptr cinfo, int argc, char **argv,
|
||||
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;
|
||||
* they have presumably been processed in a previous iteration.
|
||||
* (Pass 0 for last_file_arg_seen on the first or only iteration.)
|
||||
* for_real is FALSE on the first (dummy) pass; we may skip any expensive
|
||||
* processing.
|
||||
*/
|
||||
{
|
||||
int argn;
|
||||
char * arg;
|
||||
boolean force_baseline;
|
||||
boolean simple_progressive;
|
||||
char * qualityarg = NULL; /* saves -quality 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. */
|
||||
|
||||
force_baseline = FALSE; /* by default, allow 16-bit quantizers */
|
||||
simple_progressive = FALSE;
|
||||
is_targa = FALSE;
|
||||
outfilename = NULL;
|
||||
memdst = FALSE;
|
||||
cinfo->err->trace_level = 0;
|
||||
|
||||
/* Scan command line options, adjust parameters */
|
||||
|
||||
for (argn = 1; argn < argc; argn++) {
|
||||
arg = argv[argn];
|
||||
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 */
|
||||
continue; /* ignore this name if previously processed */
|
||||
}
|
||||
break; /* else done parsing switches */
|
||||
}
|
||||
arg++; /* advance past switch marker character */
|
||||
|
||||
if (keymatch(arg, "arithmetic", 1)) {
|
||||
/* Use arithmetic coding. */
|
||||
#ifdef C_ARITH_CODING_SUPPORTED
|
||||
cinfo->arith_code = TRUE;
|
||||
#else
|
||||
fprintf(stderr, "%s: sorry, arithmetic coding not supported\n",
|
||||
progname);
|
||||
exit(EXIT_FAILURE);
|
||||
#endif
|
||||
|
||||
} else if (keymatch(arg, "baseline", 1)) {
|
||||
/* 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 */
|
||||
usage();
|
||||
if (keymatch(argv[argn], "int", 1)) {
|
||||
cinfo->dct_method = JDCT_ISLOW;
|
||||
} else if (keymatch(argv[argn], "fast", 2)) {
|
||||
cinfo->dct_method = JDCT_IFAST;
|
||||
} else if (keymatch(argv[argn], "float", 2)) {
|
||||
cinfo->dct_method = JDCT_FLOAT;
|
||||
} else
|
||||
usage();
|
||||
|
||||
} else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
|
||||
/* Enable debug printouts. */
|
||||
/* On first -d, print version identification */
|
||||
static boolean printed_version = FALSE;
|
||||
|
||||
if (! printed_version) {
|
||||
fprintf(stderr, "%s version %s (build %s)\n",
|
||||
PACKAGE_NAME, VERSION, BUILD);
|
||||
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, "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 */
|
||||
usage();
|
||||
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
|
||||
usage();
|
||||
if (ch == 'm' || ch == 'M')
|
||||
lval *= 1000L;
|
||||
cinfo->mem->max_memory_to_use = lval * 1000L;
|
||||
|
||||
} 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 in\n",
|
||||
progname);
|
||||
exit(EXIT_FAILURE);
|
||||
#endif
|
||||
|
||||
} else if (keymatch(arg, "outfile", 4)) {
|
||||
/* Set output file name. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
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 ratings (quantization table scaling factors). */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
qualityarg = argv[argn];
|
||||
|
||||
} else if (keymatch(arg, "qslots", 2)) {
|
||||
/* Quantization table slot numbers. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
qslotsarg = argv[argn];
|
||||
/* Must delay setting qslots until after we have processed any
|
||||
* colorspace-determining switches, since jpeg_set_colorspace sets
|
||||
* default quant table numbers.
|
||||
*/
|
||||
|
||||
} else if (keymatch(arg, "qtables", 2)) {
|
||||
/* Quantization tables fetched from file. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
qtablefile = argv[argn];
|
||||
/* We postpone actually reading the file in case -quality comes later. */
|
||||
|
||||
} else if (keymatch(arg, "restart", 1)) {
|
||||
/* Restart interval in MCU rows (or in MCUs with 'b'). */
|
||||
long lval;
|
||||
char ch = 'x';
|
||||
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
|
||||
usage();
|
||||
if (lval < 0 || lval > 65535L)
|
||||
usage();
|
||||
if (ch == 'b' || ch == 'B') {
|
||||
cinfo->restart_interval = (unsigned int) lval;
|
||||
cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */
|
||||
} else {
|
||||
cinfo->restart_in_rows = (int) lval;
|
||||
/* restart_interval will be computed during startup */
|
||||
}
|
||||
|
||||
} else if (keymatch(arg, "sample", 2)) {
|
||||
/* Set sampling factors. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
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 */
|
||||
usage();
|
||||
if (sscanf(argv[argn], "%d", &val) != 1)
|
||||
usage();
|
||||
if (val < 0 || val > 100)
|
||||
usage();
|
||||
cinfo->smoothing_factor = val;
|
||||
|
||||
} else if (keymatch(arg, "targa", 1)) {
|
||||
/* Input file is Targa format. */
|
||||
is_targa = TRUE;
|
||||
|
||||
} else {
|
||||
usage(); /* bogus switch */
|
||||
}
|
||||
}
|
||||
|
||||
/* Post-switch-scanning cleanup */
|
||||
|
||||
if (for_real) {
|
||||
|
||||
/* Set quantization tables for selected quality. */
|
||||
/* Some or all may be overridden if -qtables is present. */
|
||||
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 (! read_quant_tables(cinfo, qtablefile, force_baseline))
|
||||
usage();
|
||||
|
||||
if (qslotsarg != NULL) /* process -qslots if it was present */
|
||||
if (! set_quant_slots(cinfo, qslotsarg))
|
||||
usage();
|
||||
|
||||
if (samplearg != NULL) /* process -sample if it was present */
|
||||
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) */
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* The main program.
|
||||
*/
|
||||
|
||||
int
|
||||
main (int argc, char **argv)
|
||||
{
|
||||
struct jpeg_compress_struct cinfo;
|
||||
struct jpeg_error_mgr jerr;
|
||||
#ifdef PROGRESS_REPORT
|
||||
struct cdjpeg_progress_mgr progress;
|
||||
#endif
|
||||
int file_index;
|
||||
cjpeg_source_ptr src_mgr;
|
||||
FILE * input_file;
|
||||
FILE * output_file = NULL;
|
||||
unsigned char *outbuffer = NULL;
|
||||
unsigned long outsize = 0;
|
||||
JDIMENSION num_scanlines;
|
||||
|
||||
/* On Mac, fetch a command line. */
|
||||
#ifdef USE_CCOMMAND
|
||||
argc = ccommand(&argv);
|
||||
#endif
|
||||
|
||||
progname = argv[0];
|
||||
if (progname == NULL || progname[0] == 0)
|
||||
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);
|
||||
jpeg_create_compress(&cinfo);
|
||||
/* Add some application-specific error messages (from cderror.h) */
|
||||
jerr.addon_message_table = cdjpeg_message_table;
|
||||
jerr.first_addon_message = JMSG_FIRSTADDONCODE;
|
||||
jerr.last_addon_message = JMSG_LASTADDONCODE;
|
||||
|
||||
/* Now safe to enable signal catcher. */
|
||||
#ifdef NEED_SIGNAL_CATCHER
|
||||
enable_signal_catcher((j_common_ptr) &cinfo);
|
||||
#endif
|
||||
|
||||
/* Initialize JPEG parameters.
|
||||
* Much of this may be overridden later.
|
||||
* In particular, we don't yet know the input file's color space,
|
||||
* but we need to provide some value for jpeg_set_defaults() to work.
|
||||
*/
|
||||
|
||||
cinfo.in_color_space = JCS_RGB; /* arbitrary guess */
|
||||
jpeg_set_defaults(&cinfo);
|
||||
|
||||
/* Scan command line to find file names.
|
||||
* It is convenient to use just one switch-parsing routine, but the switch
|
||||
* values read here are ignored; we will rescan the switches after opening
|
||||
* the input file.
|
||||
*/
|
||||
|
||||
file_index = parse_switches(&cinfo, argc, argv, 0, FALSE);
|
||||
|
||||
#ifdef TWO_FILE_COMMANDLINE
|
||||
if (!memdst) {
|
||||
/* Must have either -outfile switch or explicit output file name */
|
||||
if (outfilename == NULL) {
|
||||
if (file_index != argc-2) {
|
||||
fprintf(stderr, "%s: must name one input and one output file\n",
|
||||
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);
|
||||
usage();
|
||||
}
|
||||
}
|
||||
}
|
||||
#else
|
||||
/* Unix style: expect zero or one file name */
|
||||
if (file_index < argc-1) {
|
||||
fprintf(stderr, "%s: only one input file\n", progname);
|
||||
usage();
|
||||
}
|
||||
#endif /* TWO_FILE_COMMANDLINE */
|
||||
|
||||
/* Open the input file. */
|
||||
if (file_index < argc) {
|
||||
if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) {
|
||||
fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
} else {
|
||||
/* default input file is stdin */
|
||||
input_file = read_stdin();
|
||||
}
|
||||
|
||||
/* Open the output file. */
|
||||
if (outfilename != NULL) {
|
||||
if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) {
|
||||
fprintf(stderr, "%s: can't open %s\n", progname, outfilename);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
} else if (!memdst) {
|
||||
/* default output file is stdout */
|
||||
output_file = write_stdout();
|
||||
}
|
||||
|
||||
#ifdef PROGRESS_REPORT
|
||||
start_progress_monitor((j_common_ptr) &cinfo, &progress);
|
||||
#endif
|
||||
|
||||
/* Figure out the input file format, and set up to read it. */
|
||||
src_mgr = select_file_type(&cinfo, input_file);
|
||||
src_mgr->input_file = input_file;
|
||||
|
||||
/* Read the input file header to obtain file size & colorspace. */
|
||||
(*src_mgr->start_input) (&cinfo, src_mgr);
|
||||
|
||||
/* Now that we know input colorspace, fix colorspace-dependent defaults */
|
||||
jpeg_default_colorspace(&cinfo);
|
||||
|
||||
/* Adjust default compression parameters by re-parsing the options */
|
||||
file_index = parse_switches(&cinfo, argc, argv, 0, TRUE);
|
||||
|
||||
/* Specify data destination for compression */
|
||||
#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);
|
||||
|
||||
/* Process data */
|
||||
while (cinfo.next_scanline < cinfo.image_height) {
|
||||
num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr);
|
||||
(void) jpeg_write_scanlines(&cinfo, src_mgr->buffer, num_scanlines);
|
||||
}
|
||||
|
||||
/* Finish compression and release memory */
|
||||
(*src_mgr->finish_input) (&cinfo, src_mgr);
|
||||
jpeg_finish_compress(&cinfo);
|
||||
jpeg_destroy_compress(&cinfo);
|
||||
|
||||
/* Close files, if we opened them */
|
||||
if (input_file != stdin)
|
||||
fclose(input_file);
|
||||
if (output_file != stdout && output_file != NULL)
|
||||
fclose(output_file);
|
||||
|
||||
#ifdef PROGRESS_REPORT
|
||||
end_progress_monitor((j_common_ptr) &cinfo);
|
||||
#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 */
|
||||
}
|
||||
15
jpegturbo/cmakescripts/md5cmp.cmake
Normal file
15
jpegturbo/cmakescripts/md5cmp.cmake
Normal file
|
|
@ -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()
|
||||
34
jpegturbo/cmakescripts/testclean.cmake
Normal file
34
jpegturbo/cmakescripts/testclean.cmake
Normal file
|
|
@ -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()
|
||||
118
jpegturbo/coderules.txt
Normal file
118
jpegturbo/coderules.txt
Normal file
|
|
@ -0,0 +1,118 @@
|
|||
IJG JPEG LIBRARY: CODING RULES
|
||||
|
||||
Copyright (C) 1991-1996, 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 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.)
|
||||
|
||||
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 forward and external function declarations
|
||||
(see the EXTERN and JPP macros).
|
||||
|
||||
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.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 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.
|
||||
140
jpegturbo/compile
Executable file
140
jpegturbo/compile
Executable file
|
|
@ -0,0 +1,140 @@
|
|||
#! /bin/sh
|
||||
# Wrapper for compilers which do not understand `-c -o'.
|
||||
|
||||
scriptversion=2004-09-10.20
|
||||
|
||||
# Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
|
||||
# Written by Tom Tromey <tromey@cygnus.com>.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2, or (at your option)
|
||||
# any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
|
||||
# As a special exception to the GNU General Public License, if you
|
||||
# distribute this file as part of a program that contains a
|
||||
# configuration script generated by Autoconf, you may include it under
|
||||
# the same distribution terms that you use for the rest of that program.
|
||||
|
||||
# This file is maintained in Automake, please report
|
||||
# bugs to <bug-automake@gnu.org> or send patches to
|
||||
# <automake-patches@gnu.org>.
|
||||
|
||||
case $1 in
|
||||
'')
|
||||
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
|
||||
exit 1;
|
||||
;;
|
||||
-h | --h*)
|
||||
cat <<\EOF
|
||||
Usage: compile [--help] [--version] PROGRAM [ARGS]
|
||||
|
||||
Wrapper for compilers which do not understand `-c -o'.
|
||||
Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
|
||||
arguments, and rename the output as expected.
|
||||
|
||||
If you are trying to build a whole package this is not the
|
||||
right script to run: please start by reading the file `INSTALL'.
|
||||
|
||||
Report bugs to <bug-automake@gnu.org>.
|
||||
EOF
|
||||
exit 0
|
||||
;;
|
||||
-v | --v*)
|
||||
echo "compile $scriptversion"
|
||||
exit 0
|
||||
;;
|
||||
esac
|
||||
|
||||
ofile=
|
||||
cfile=
|
||||
eat=
|
||||
|
||||
for arg
|
||||
do
|
||||
if test -n "$eat"; then
|
||||
eat=
|
||||
else
|
||||
case $1 in
|
||||
-o)
|
||||
# configure might choose to run compile as `compile cc -o foo foo.c'.
|
||||
# So we strip `-o arg' only if arg is an object.
|
||||
eat=1
|
||||
case $2 in
|
||||
*.o | *.obj)
|
||||
ofile=$2
|
||||
;;
|
||||
*)
|
||||
set x "$@" -o "$2"
|
||||
shift
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
*.c)
|
||||
cfile=$1
|
||||
set x "$@" "$1"
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
set x "$@" "$1"
|
||||
shift
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
shift
|
||||
done
|
||||
|
||||
if test -z "$ofile" || test -z "$cfile"; then
|
||||
# If no `-o' option was seen then we might have been invoked from a
|
||||
# pattern rule where we don't need one. That is ok -- this is a
|
||||
# normal compilation that the losing compiler can handle. If no
|
||||
# `.c' file was seen then we are probably linking. That is also
|
||||
# ok.
|
||||
exec "$@"
|
||||
fi
|
||||
|
||||
# Name of file we expect compiler to create.
|
||||
cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
|
||||
|
||||
# Create the lock directory.
|
||||
# Note: use `[/.-]' here to ensure that we don't use the same name
|
||||
# that we are using for the .o file. Also, base the name on the expected
|
||||
# object file name, since that is what matters with a parallel build.
|
||||
lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d
|
||||
while true; do
|
||||
if mkdir "$lockdir" >/dev/null 2>&1; then
|
||||
break
|
||||
fi
|
||||
sleep 1
|
||||
done
|
||||
# FIXME: race condition here if user kills between mkdir and trap.
|
||||
trap "rmdir '$lockdir'; exit 1" 1 2 15
|
||||
|
||||
# Run the compile.
|
||||
"$@"
|
||||
ret=$?
|
||||
|
||||
if test -f "$cofile"; then
|
||||
mv "$cofile" "$ofile"
|
||||
fi
|
||||
|
||||
rmdir "$lockdir"
|
||||
exit $ret
|
||||
|
||||
# Local Variables:
|
||||
# mode: shell-script
|
||||
# sh-indentation: 2
|
||||
# eval: (add-hook 'write-file-hooks 'time-stamp)
|
||||
# time-stamp-start: "scriptversion="
|
||||
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
||||
# time-stamp-end: "$"
|
||||
# End:
|
||||
1447
jpegturbo/config.guess
vendored
Executable file
1447
jpegturbo/config.guess
vendored
Executable file
File diff suppressed because it is too large
Load diff
138
jpegturbo/config.h.in
Normal file
138
jpegturbo/config.h.in
Normal file
|
|
@ -0,0 +1,138 @@
|
|||
/* config.h.in. Generated from configure.ac by autoheader. */
|
||||
|
||||
/* Build number */
|
||||
#undef BUILD
|
||||
|
||||
/* Support arithmetic encoding */
|
||||
#undef C_ARITH_CODING_SUPPORTED
|
||||
|
||||
/* Support arithmetic decoding */
|
||||
#undef D_ARITH_CODING_SUPPORTED
|
||||
|
||||
/* Define to 1 if you have the <dlfcn.h> header file. */
|
||||
#undef HAVE_DLFCN_H
|
||||
|
||||
/* Define to 1 if you have the <inttypes.h> header file. */
|
||||
#undef HAVE_INTTYPES_H
|
||||
|
||||
/* Define to 1 if you have the <jni.h> header file. */
|
||||
#undef HAVE_JNI_H
|
||||
|
||||
/* Define to 1 if you have the `memcpy' function. */
|
||||
#undef HAVE_MEMCPY
|
||||
|
||||
/* Define to 1 if you have the <memory.h> header file. */
|
||||
#undef HAVE_MEMORY_H
|
||||
|
||||
/* Define to 1 if you have the `memset' function. */
|
||||
#undef HAVE_MEMSET
|
||||
|
||||
/* Define if your compiler supports prototypes */
|
||||
#undef HAVE_PROTOTYPES
|
||||
|
||||
/* Define to 1 if you have the <stddef.h> header file. */
|
||||
#undef HAVE_STDDEF_H
|
||||
|
||||
/* Define to 1 if you have the <stdint.h> header file. */
|
||||
#undef HAVE_STDINT_H
|
||||
|
||||
/* Define to 1 if you have the <stdlib.h> header file. */
|
||||
#undef HAVE_STDLIB_H
|
||||
|
||||
/* Define to 1 if you have the <strings.h> header file. */
|
||||
#undef HAVE_STRINGS_H
|
||||
|
||||
/* Define to 1 if you have the <string.h> header file. */
|
||||
#undef HAVE_STRING_H
|
||||
|
||||
/* Define to 1 if you have the <sys/stat.h> header file. */
|
||||
#undef HAVE_SYS_STAT_H
|
||||
|
||||
/* Define to 1 if you have the <sys/types.h> header file. */
|
||||
#undef HAVE_SYS_TYPES_H
|
||||
|
||||
/* Define to 1 if you have the <unistd.h> header file. */
|
||||
#undef HAVE_UNISTD_H
|
||||
|
||||
/* Define to 1 if the system has the type `unsigned char'. */
|
||||
#undef HAVE_UNSIGNED_CHAR
|
||||
|
||||
/* Define to 1 if the system has the type `unsigned short'. */
|
||||
#undef HAVE_UNSIGNED_SHORT
|
||||
|
||||
/* Compiler does not support pointers to undefined structures. */
|
||||
#undef INCOMPLETE_TYPES_BROKEN
|
||||
|
||||
/* How to obtain function inlining. */
|
||||
#undef INLINE
|
||||
|
||||
/* libjpeg API version */
|
||||
#undef JPEG_LIB_VERSION
|
||||
|
||||
/* libjpeg-turbo version */
|
||||
#undef LIBJPEG_TURBO_VERSION
|
||||
|
||||
/* Support in-memory source/destination managers */
|
||||
#undef MEM_SRCDST_SUPPORTED
|
||||
|
||||
/* Define if you have BSD-like bzero and bcopy */
|
||||
#undef NEED_BSD_STRINGS
|
||||
|
||||
/* Define if you need short function names */
|
||||
#undef NEED_SHORT_EXTERNAL_NAMES
|
||||
|
||||
/* Define if you have sys/types.h */
|
||||
#undef NEED_SYS_TYPES_H
|
||||
|
||||
/* Define to 1 if your C compiler doesn't accept -c and -o together. */
|
||||
#undef NO_MINUS_C_MINUS_O
|
||||
|
||||
/* Name of package */
|
||||
#undef PACKAGE
|
||||
|
||||
/* Define to the address where bug reports for this package should be sent. */
|
||||
#undef PACKAGE_BUGREPORT
|
||||
|
||||
/* Define to the full name of this package. */
|
||||
#undef PACKAGE_NAME
|
||||
|
||||
/* Define to the full name and version of this package. */
|
||||
#undef PACKAGE_STRING
|
||||
|
||||
/* Define to the one symbol short name of this package. */
|
||||
#undef PACKAGE_TARNAME
|
||||
|
||||
/* Define to the version of this package. */
|
||||
#undef PACKAGE_VERSION
|
||||
|
||||
/* Define if shift is unsigned */
|
||||
#undef RIGHT_SHIFT_IS_UNSIGNED
|
||||
|
||||
/* The size of a `long', as computed by sizeof. */
|
||||
#undef SIZEOF_LONG
|
||||
|
||||
/* Define to 1 if you have the ANSI C header files. */
|
||||
#undef STDC_HEADERS
|
||||
|
||||
/* Version number of package */
|
||||
#undef VERSION
|
||||
|
||||
/* Use accelerated SIMD routines. */
|
||||
#undef WITH_SIMD
|
||||
|
||||
/* Define to 1 if type `char' is unsigned and you are not using gcc. */
|
||||
#ifndef __CHAR_UNSIGNED__
|
||||
# undef __CHAR_UNSIGNED__
|
||||
#endif
|
||||
|
||||
/* Define to empty if `const' does not conform to ANSI C. */
|
||||
#undef const
|
||||
|
||||
/* Define to `__inline__' or `__inline' if that's what the C compiler
|
||||
calls it, or to nothing if 'inline' is not supported under any name. */
|
||||
#ifndef __cplusplus
|
||||
#undef inline
|
||||
#endif
|
||||
|
||||
/* Define to `unsigned' if <sys/types.h> does not define. */
|
||||
#undef size_t
|
||||
1555
jpegturbo/config.sub
vendored
Executable file
1555
jpegturbo/config.sub
vendored
Executable file
File diff suppressed because it is too large
Load diff
25069
jpegturbo/configure
vendored
Executable file
25069
jpegturbo/configure
vendored
Executable file
File diff suppressed because it is too large
Load diff
513
jpegturbo/configure.ac
Normal file
513
jpegturbo/configure.ac
Normal file
|
|
@ -0,0 +1,513 @@
|
|||
# -*- Autoconf -*-
|
||||
# Process this file with autoconf to produce a configure script.
|
||||
|
||||
AC_PREREQ([2.56])
|
||||
AC_INIT([libjpeg-turbo], [1.3.1])
|
||||
BUILD=`date +%Y%m%d`
|
||||
|
||||
AM_INIT_AUTOMAKE([-Wall foreign dist-bzip2])
|
||||
AC_PREFIX_DEFAULT(/opt/libjpeg-turbo)
|
||||
|
||||
# Always build with prototypes
|
||||
AC_DEFINE([HAVE_PROTOTYPES], 1, [Define if your compiler supports prototypes])
|
||||
|
||||
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='${prefix}'
|
||||
fi
|
||||
|
||||
old_exec_prefix=${exec_prefix}
|
||||
if test "x$exec_prefix" = "xNONE"; then
|
||||
exec_prefix=${prefix}
|
||||
fi
|
||||
|
||||
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 $host_os in
|
||||
darwin*)
|
||||
;;
|
||||
*)
|
||||
AC_CHECK_SIZEOF(long)
|
||||
if test "${ac_cv_sizeof_long}" = "8"; then
|
||||
libdir='${exec_prefix}/lib64'
|
||||
elif test "${ac_cv_sizeof_long}" = "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 string.h])
|
||||
AC_CHECK_HEADER([sys/types.h],
|
||||
AC_DEFINE([NEED_SYS_TYPES_H], 1, [Define if you have sys/types.h]))
|
||||
|
||||
# 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 shift is unsigned])],
|
||||
[AC_MSG_RESULT(yes)],
|
||||
[AC_MSG_RESULT(Assuming that right shift is signed on target machine.)])
|
||||
|
||||
# test whether global names are unique to at least 15 chars
|
||||
AC_MSG_CHECKING([for short external names])
|
||||
AC_TRY_LINK(
|
||||
[int possibly_duplicate_function () { return 0; }
|
||||
int possibly_dupli_function () { return 1; }], [ ],
|
||||
[AC_MSG_RESULT(ok)],
|
||||
[AC_MSG_RESULT(short)
|
||||
AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], 1,
|
||||
[Define if you need short function names])])
|
||||
|
||||
# Checks for library functions.
|
||||
AC_CHECK_FUNCS([memset memcpy], [],
|
||||
[AC_DEFINE([NEED_BSD_STRINGS], 1,
|
||||
[Define if you have BSD-like bzero and bcopy])])
|
||||
|
||||
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$VERSION_SCRIPT" = "xyes")
|
||||
AC_SUBST(VERSION_SCRIPT_FLAG)
|
||||
|
||||
# Check for non-broken inline under various spellings
|
||||
AC_MSG_CHECKING(for inline)
|
||||
ljt_cv_inline=""
|
||||
AC_TRY_COMPILE(, [} __attribute__((always_inline)) int foo() { return 0; }
|
||||
int bar() { return foo();], ljt_cv_inline="inline __attribute__((always_inline))",
|
||||
AC_TRY_COMPILE(, [} __inline__ int foo() { return 0; }
|
||||
int bar() { return foo();], ljt_cv_inline="__inline__",
|
||||
AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
|
||||
int bar() { return foo();], ljt_cv_inline="__inline",
|
||||
AC_TRY_COMPILE(, [} inline int foo() { return 0; }
|
||||
int bar() { return foo();], ljt_cv_inline="inline"))))
|
||||
AC_MSG_RESULT($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_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$with_arith_dec" = "xno"; then
|
||||
AC_MSG_RESULT(no)
|
||||
RPM_CONFIG_ARGS="$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$with_arith_enc" != "xno"])
|
||||
|
||||
# TurboJPEG support
|
||||
AC_MSG_CHECKING([whether to build TurboJPEG C wrapper])
|
||||
AC_ARG_WITH([turbojpeg],
|
||||
AC_HELP_STRING([--without-turbojpeg],
|
||||
[Do not include the TurboJPEG wrapper library and associated test programs]))
|
||||
if test "x$with_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$with_turbojpeg" = "xno"; then
|
||||
with_java=no
|
||||
fi
|
||||
|
||||
WITH_JAVA=0
|
||||
if test "x$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_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(
|
||||
[AC_MSG_RESULT([yes])
|
||||
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
|
||||
;;
|
||||
*)
|
||||
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([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
|
||||
;;
|
||||
esac
|
||||
|
||||
AC_SUBST(RPMARCH)
|
||||
AC_SUBST(RPM_CONFIG_ARGS)
|
||||
AC_SUBST(DEBARCH)
|
||||
AC_SUBST(BUILD)
|
||||
AC_DEFINE_UNQUOTED([BUILD], "$BUILD", [Build number])
|
||||
|
||||
# jconfig.h is the file we use, but we have another before that to
|
||||
# fool autoheader. the reason is that we include this header in our
|
||||
# API headers, which can screw things up for users of the lib.
|
||||
# jconfig.h is a minimal version that allows this package to be built
|
||||
AC_CONFIG_HEADERS([config.h])
|
||||
AC_CONFIG_HEADERS([jconfig.h])
|
||||
AC_CONFIG_FILES([pkgscripts/libjpeg-turbo.spec.tmpl:release/libjpeg-turbo.spec.in])
|
||||
AC_CONFIG_FILES([pkgscripts/makecygwinpkg.tmpl:release/makecygwinpkg.in])
|
||||
AC_CONFIG_FILES([pkgscripts/makedpkg.tmpl:release/makedpkg.in])
|
||||
AC_CONFIG_FILES([pkgscripts/makemacpkg.tmpl:release/makemacpkg.in])
|
||||
AC_CONFIG_FILES([pkgscripts/Description.plist:release/Description.plist.in])
|
||||
AC_CONFIG_FILES([pkgscripts/Info.plist:release/Info.plist.in])
|
||||
AC_CONFIG_FILES([pkgscripts/uninstall.tmpl:release/uninstall.in])
|
||||
if test "x$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
|
||||
522
jpegturbo/depcomp
Executable file
522
jpegturbo/depcomp
Executable file
|
|
@ -0,0 +1,522 @@
|
|||
#! /bin/sh
|
||||
# depcomp - compile a program generating dependencies as side-effects
|
||||
|
||||
scriptversion=2004-05-31.23
|
||||
|
||||
# Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
|
||||
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2, or (at your option)
|
||||
# any later version.
|
||||
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
||||
# 02111-1307, USA.
|
||||
|
||||
# As a special exception to the GNU General Public License, if you
|
||||
# distribute this file as part of a program that contains a
|
||||
# configuration script generated by Autoconf, you may include it under
|
||||
# the same distribution terms that you use for the rest of that program.
|
||||
|
||||
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
|
||||
|
||||
case $1 in
|
||||
'')
|
||||
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
|
||||
exit 1;
|
||||
;;
|
||||
-h | --h*)
|
||||
cat <<\EOF
|
||||
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
|
||||
|
||||
Run PROGRAMS ARGS to compile a file, generating dependencies
|
||||
as side-effects.
|
||||
|
||||
Environment variables:
|
||||
depmode Dependency tracking mode.
|
||||
source Source file read by `PROGRAMS ARGS'.
|
||||
object Object file output by `PROGRAMS ARGS'.
|
||||
DEPDIR directory where to store dependencies.
|
||||
depfile Dependency file to output.
|
||||
tmpdepfile Temporary file to use when outputing dependencies.
|
||||
libtool Whether libtool is used (yes/no).
|
||||
|
||||
Report bugs to <bug-automake@gnu.org>.
|
||||
EOF
|
||||
exit 0
|
||||
;;
|
||||
-v | --v*)
|
||||
echo "depcomp $scriptversion"
|
||||
exit 0
|
||||
;;
|
||||
esac
|
||||
|
||||
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
|
||||
echo "depcomp: Variables source, object and depmode must be set" 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
|
||||
depfile=${depfile-`echo "$object" |
|
||||
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
|
||||
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
|
||||
|
||||
rm -f "$tmpdepfile"
|
||||
|
||||
# Some modes work just like other modes, but use different flags. We
|
||||
# parameterize here, but still list the modes in the big case below,
|
||||
# to make depend.m4 easier to write. Note that we *cannot* use a case
|
||||
# here, because this file can only contain one case statement.
|
||||
if test "$depmode" = hp; then
|
||||
# HP compiler uses -M and no extra arg.
|
||||
gccflag=-M
|
||||
depmode=gcc
|
||||
fi
|
||||
|
||||
if test "$depmode" = dashXmstdout; then
|
||||
# This is just like dashmstdout with a different argument.
|
||||
dashmflag=-xM
|
||||
depmode=dashmstdout
|
||||
fi
|
||||
|
||||
case "$depmode" in
|
||||
gcc3)
|
||||
## gcc 3 implements dependency tracking that does exactly what
|
||||
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
|
||||
## it if -MD -MP comes after the -MF stuff. Hmm.
|
||||
"$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
|
||||
stat=$?
|
||||
if test $stat -eq 0; then :
|
||||
else
|
||||
rm -f "$tmpdepfile"
|
||||
exit $stat
|
||||
fi
|
||||
mv "$tmpdepfile" "$depfile"
|
||||
;;
|
||||
|
||||
gcc)
|
||||
## There are various ways to get dependency output from gcc. Here's
|
||||
## why we pick this rather obscure method:
|
||||
## - Don't want to use -MD because we'd like the dependencies to end
|
||||
## up in a subdir. Having to rename by hand is ugly.
|
||||
## (We might end up doing this anyway to support other compilers.)
|
||||
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
|
||||
## -MM, not -M (despite what the docs say).
|
||||
## - Using -M directly means running the compiler twice (even worse
|
||||
## than renaming).
|
||||
if test -z "$gccflag"; then
|
||||
gccflag=-MD,
|
||||
fi
|
||||
"$@" -Wp,"$gccflag$tmpdepfile"
|
||||
stat=$?
|
||||
if test $stat -eq 0; then :
|
||||
else
|
||||
rm -f "$tmpdepfile"
|
||||
exit $stat
|
||||
fi
|
||||
rm -f "$depfile"
|
||||
echo "$object : \\" > "$depfile"
|
||||
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
|
||||
## The second -e expression handles DOS-style file names with drive letters.
|
||||
sed -e 's/^[^:]*: / /' \
|
||||
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
|
||||
## This next piece of magic avoids the `deleted header file' problem.
|
||||
## The problem is that when a header file which appears in a .P file
|
||||
## is deleted, the dependency causes make to die (because there is
|
||||
## typically no way to rebuild the header). We avoid this by adding
|
||||
## dummy dependencies for each header file. Too bad gcc doesn't do
|
||||
## this for us directly.
|
||||
tr ' ' '
|
||||
' < "$tmpdepfile" |
|
||||
## Some versions of gcc put a space before the `:'. On the theory
|
||||
## that the space means something, we add a space to the output as
|
||||
## well.
|
||||
## Some versions of the HPUX 10.20 sed can't process this invocation
|
||||
## correctly. Breaking it into two sed invocations is a workaround.
|
||||
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
hp)
|
||||
# This case exists only to let depend.m4 do its work. It works by
|
||||
# looking at the text of this script. This case will never be run,
|
||||
# since it is checked for above.
|
||||
exit 1
|
||||
;;
|
||||
|
||||
sgi)
|
||||
if test "$libtool" = yes; then
|
||||
"$@" "-Wp,-MDupdate,$tmpdepfile"
|
||||
else
|
||||
"$@" -MDupdate "$tmpdepfile"
|
||||
fi
|
||||
stat=$?
|
||||
if test $stat -eq 0; then :
|
||||
else
|
||||
rm -f "$tmpdepfile"
|
||||
exit $stat
|
||||
fi
|
||||
rm -f "$depfile"
|
||||
|
||||
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
|
||||
echo "$object : \\" > "$depfile"
|
||||
|
||||
# Clip off the initial element (the dependent). Don't try to be
|
||||
# clever and replace this with sed code, as IRIX sed won't handle
|
||||
# lines with more than a fixed number of characters (4096 in
|
||||
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
|
||||
# the IRIX cc adds comments like `#:fec' to the end of the
|
||||
# dependency line.
|
||||
tr ' ' '
|
||||
' < "$tmpdepfile" \
|
||||
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
|
||||
tr '
|
||||
' ' ' >> $depfile
|
||||
echo >> $depfile
|
||||
|
||||
# The second pass generates a dummy entry for each header file.
|
||||
tr ' ' '
|
||||
' < "$tmpdepfile" \
|
||||
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
|
||||
>> $depfile
|
||||
else
|
||||
# The sourcefile does not contain any dependencies, so just
|
||||
# store a dummy comment line, to avoid errors with the Makefile
|
||||
# "include basename.Plo" scheme.
|
||||
echo "#dummy" > "$depfile"
|
||||
fi
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
aix)
|
||||
# The C for AIX Compiler uses -M and outputs the dependencies
|
||||
# in a .u file. In older versions, this file always lives in the
|
||||
# current directory. Also, the AIX compiler puts `$object:' at the
|
||||
# start of each line; $object doesn't have directory information.
|
||||
# Version 6 uses the directory in both cases.
|
||||
stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
|
||||
tmpdepfile="$stripped.u"
|
||||
if test "$libtool" = yes; then
|
||||
"$@" -Wc,-M
|
||||
else
|
||||
"$@" -M
|
||||
fi
|
||||
stat=$?
|
||||
|
||||
if test -f "$tmpdepfile"; then :
|
||||
else
|
||||
stripped=`echo "$stripped" | sed 's,^.*/,,'`
|
||||
tmpdepfile="$stripped.u"
|
||||
fi
|
||||
|
||||
if test $stat -eq 0; then :
|
||||
else
|
||||
rm -f "$tmpdepfile"
|
||||
exit $stat
|
||||
fi
|
||||
|
||||
if test -f "$tmpdepfile"; then
|
||||
outname="$stripped.o"
|
||||
# Each line is of the form `foo.o: dependent.h'.
|
||||
# Do two passes, one to just change these to
|
||||
# `$object: dependent.h' and one to simply `dependent.h:'.
|
||||
sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
|
||||
sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
|
||||
else
|
||||
# The sourcefile does not contain any dependencies, so just
|
||||
# store a dummy comment line, to avoid errors with the Makefile
|
||||
# "include basename.Plo" scheme.
|
||||
echo "#dummy" > "$depfile"
|
||||
fi
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
icc)
|
||||
# Intel's C compiler understands `-MD -MF file'. However on
|
||||
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
|
||||
# ICC 7.0 will fill foo.d with something like
|
||||
# foo.o: sub/foo.c
|
||||
# foo.o: sub/foo.h
|
||||
# which is wrong. We want:
|
||||
# sub/foo.o: sub/foo.c
|
||||
# sub/foo.o: sub/foo.h
|
||||
# sub/foo.c:
|
||||
# sub/foo.h:
|
||||
# ICC 7.1 will output
|
||||
# foo.o: sub/foo.c sub/foo.h
|
||||
# and will wrap long lines using \ :
|
||||
# foo.o: sub/foo.c ... \
|
||||
# sub/foo.h ... \
|
||||
# ...
|
||||
|
||||
"$@" -MD -MF "$tmpdepfile"
|
||||
stat=$?
|
||||
if test $stat -eq 0; then :
|
||||
else
|
||||
rm -f "$tmpdepfile"
|
||||
exit $stat
|
||||
fi
|
||||
rm -f "$depfile"
|
||||
# Each line is of the form `foo.o: dependent.h',
|
||||
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
|
||||
# Do two passes, one to just change these to
|
||||
# `$object: dependent.h' and one to simply `dependent.h:'.
|
||||
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
|
||||
# Some versions of the HPUX 10.20 sed can't process this invocation
|
||||
# correctly. Breaking it into two sed invocations is a workaround.
|
||||
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
|
||||
sed -e 's/$/ :/' >> "$depfile"
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
tru64)
|
||||
# The Tru64 compiler uses -MD to generate dependencies as a side
|
||||
# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
|
||||
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
|
||||
# dependencies in `foo.d' instead, so we check for that too.
|
||||
# Subdirectories are respected.
|
||||
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
|
||||
test "x$dir" = "x$object" && dir=
|
||||
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
|
||||
|
||||
if test "$libtool" = yes; then
|
||||
# Dependencies are output in .lo.d with libtool 1.4.
|
||||
# With libtool 1.5 they are output both in $dir.libs/$base.o.d
|
||||
# and in $dir.libs/$base.o.d and $dir$base.o.d. We process the
|
||||
# latter, because the former will be cleaned when $dir.libs is
|
||||
# erased.
|
||||
tmpdepfile1="$dir.libs/$base.lo.d"
|
||||
tmpdepfile2="$dir$base.o.d"
|
||||
tmpdepfile3="$dir.libs/$base.d"
|
||||
"$@" -Wc,-MD
|
||||
else
|
||||
tmpdepfile1="$dir$base.o.d"
|
||||
tmpdepfile2="$dir$base.d"
|
||||
tmpdepfile3="$dir$base.d"
|
||||
"$@" -MD
|
||||
fi
|
||||
|
||||
stat=$?
|
||||
if test $stat -eq 0; then :
|
||||
else
|
||||
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
|
||||
exit $stat
|
||||
fi
|
||||
|
||||
if test -f "$tmpdepfile1"; then
|
||||
tmpdepfile="$tmpdepfile1"
|
||||
elif test -f "$tmpdepfile2"; then
|
||||
tmpdepfile="$tmpdepfile2"
|
||||
else
|
||||
tmpdepfile="$tmpdepfile3"
|
||||
fi
|
||||
if test -f "$tmpdepfile"; then
|
||||
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
|
||||
# That's a tab and a space in the [].
|
||||
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
|
||||
else
|
||||
echo "#dummy" > "$depfile"
|
||||
fi
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
#nosideeffect)
|
||||
# This comment above is used by automake to tell side-effect
|
||||
# dependency tracking mechanisms from slower ones.
|
||||
|
||||
dashmstdout)
|
||||
# Important note: in order to support this mode, a compiler *must*
|
||||
# always write the preprocessed file to stdout, regardless of -o.
|
||||
"$@" || exit $?
|
||||
|
||||
# Remove the call to Libtool.
|
||||
if test "$libtool" = yes; then
|
||||
while test $1 != '--mode=compile'; do
|
||||
shift
|
||||
done
|
||||
shift
|
||||
fi
|
||||
|
||||
# Remove `-o $object'.
|
||||
IFS=" "
|
||||
for arg
|
||||
do
|
||||
case $arg in
|
||||
-o)
|
||||
shift
|
||||
;;
|
||||
$object)
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
set fnord "$@" "$arg"
|
||||
shift # fnord
|
||||
shift # $arg
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
test -z "$dashmflag" && dashmflag=-M
|
||||
# Require at least two characters before searching for `:'
|
||||
# in the target name. This is to cope with DOS-style filenames:
|
||||
# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
|
||||
"$@" $dashmflag |
|
||||
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
|
||||
rm -f "$depfile"
|
||||
cat < "$tmpdepfile" > "$depfile"
|
||||
tr ' ' '
|
||||
' < "$tmpdepfile" | \
|
||||
## Some versions of the HPUX 10.20 sed can't process this invocation
|
||||
## correctly. Breaking it into two sed invocations is a workaround.
|
||||
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
dashXmstdout)
|
||||
# This case only exists to satisfy depend.m4. It is never actually
|
||||
# run, as this mode is specially recognized in the preamble.
|
||||
exit 1
|
||||
;;
|
||||
|
||||
makedepend)
|
||||
"$@" || exit $?
|
||||
# Remove any Libtool call
|
||||
if test "$libtool" = yes; then
|
||||
while test $1 != '--mode=compile'; do
|
||||
shift
|
||||
done
|
||||
shift
|
||||
fi
|
||||
# X makedepend
|
||||
shift
|
||||
cleared=no
|
||||
for arg in "$@"; do
|
||||
case $cleared in
|
||||
no)
|
||||
set ""; shift
|
||||
cleared=yes ;;
|
||||
esac
|
||||
case "$arg" in
|
||||
-D*|-I*)
|
||||
set fnord "$@" "$arg"; shift ;;
|
||||
# Strip any option that makedepend may not understand. Remove
|
||||
# the object too, otherwise makedepend will parse it as a source file.
|
||||
-*|$object)
|
||||
;;
|
||||
*)
|
||||
set fnord "$@" "$arg"; shift ;;
|
||||
esac
|
||||
done
|
||||
obj_suffix="`echo $object | sed 's/^.*\././'`"
|
||||
touch "$tmpdepfile"
|
||||
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
|
||||
rm -f "$depfile"
|
||||
cat < "$tmpdepfile" > "$depfile"
|
||||
sed '1,2d' "$tmpdepfile" | tr ' ' '
|
||||
' | \
|
||||
## Some versions of the HPUX 10.20 sed can't process this invocation
|
||||
## correctly. Breaking it into two sed invocations is a workaround.
|
||||
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
|
||||
rm -f "$tmpdepfile" "$tmpdepfile".bak
|
||||
;;
|
||||
|
||||
cpp)
|
||||
# Important note: in order to support this mode, a compiler *must*
|
||||
# always write the preprocessed file to stdout.
|
||||
"$@" || exit $?
|
||||
|
||||
# Remove the call to Libtool.
|
||||
if test "$libtool" = yes; then
|
||||
while test $1 != '--mode=compile'; do
|
||||
shift
|
||||
done
|
||||
shift
|
||||
fi
|
||||
|
||||
# Remove `-o $object'.
|
||||
IFS=" "
|
||||
for arg
|
||||
do
|
||||
case $arg in
|
||||
-o)
|
||||
shift
|
||||
;;
|
||||
$object)
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
set fnord "$@" "$arg"
|
||||
shift # fnord
|
||||
shift # $arg
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
"$@" -E |
|
||||
sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
|
||||
sed '$ s: \\$::' > "$tmpdepfile"
|
||||
rm -f "$depfile"
|
||||
echo "$object : \\" > "$depfile"
|
||||
cat < "$tmpdepfile" >> "$depfile"
|
||||
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
msvisualcpp)
|
||||
# Important note: in order to support this mode, a compiler *must*
|
||||
# always write the preprocessed file to stdout, regardless of -o,
|
||||
# because we must use -o when running libtool.
|
||||
"$@" || exit $?
|
||||
IFS=" "
|
||||
for arg
|
||||
do
|
||||
case "$arg" in
|
||||
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
|
||||
set fnord "$@"
|
||||
shift
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
set fnord "$@" "$arg"
|
||||
shift
|
||||
shift
|
||||
;;
|
||||
esac
|
||||
done
|
||||
"$@" -E |
|
||||
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
|
||||
rm -f "$depfile"
|
||||
echo "$object : \\" > "$depfile"
|
||||
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
|
||||
echo " " >> "$depfile"
|
||||
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
|
||||
rm -f "$tmpdepfile"
|
||||
;;
|
||||
|
||||
none)
|
||||
exec "$@"
|
||||
;;
|
||||
|
||||
*)
|
||||
echo "Unknown depmode $depmode" 1>&2
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
exit 0
|
||||
|
||||
# Local Variables:
|
||||
# mode: shell-script
|
||||
# sh-indentation: 2
|
||||
# eval: (add-hook 'write-file-hooks 'time-stamp)
|
||||
# time-stamp-start: "scriptversion="
|
||||
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
||||
# time-stamp-end: "$"
|
||||
# End:
|
||||
258
jpegturbo/djpeg.1
Normal file
258
jpegturbo/djpeg.1
Normal file
|
|
@ -0,0 +1,258 @@
|
|||
.TH DJPEG 1 "18 January 2013"
|
||||
.SH NAME
|
||||
djpeg \- decompress a JPEG file to an image file
|
||||
.SH SYNOPSIS
|
||||
.B djpeg
|
||||
[
|
||||
.I options
|
||||
]
|
||||
[
|
||||
.I filename
|
||||
]
|
||||
.LP
|
||||
.SH DESCRIPTION
|
||||
.LP
|
||||
.B djpeg
|
||||
decompresses the named JPEG file, or the standard input if no file is named,
|
||||
and produces an image file on the standard output. PBMPLUS (PPM/PGM), BMP,
|
||||
GIF, Targa, or RLE (Utah Raster Toolkit) output format can be selected.
|
||||
(RLE is supported only if the URT library is available.)
|
||||
.SH OPTIONS
|
||||
All switch names may be abbreviated; for example,
|
||||
.B \-grayscale
|
||||
may be written
|
||||
.B \-gray
|
||||
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 \-BMP
|
||||
is the same as
|
||||
.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 \-colors " N"
|
||||
Reduce image to at most N colors. This reduces the number of colors used in
|
||||
the output image, so that it can be displayed on a colormapped display or
|
||||
stored in a colormapped file format. For example, if you have an 8-bit
|
||||
display, you'd need to reduce to 256 or fewer colors.
|
||||
.TP
|
||||
.BI \-quantize " N"
|
||||
Same as
|
||||
.BR \-colors .
|
||||
.B \-colors
|
||||
is the recommended name,
|
||||
.B \-quantize
|
||||
is provided only for backwards compatibility.
|
||||
.TP
|
||||
.B \-fast
|
||||
Select recommended processing options for fast, low quality output. (The
|
||||
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
|
||||
monochrome displays; also,
|
||||
.B djpeg
|
||||
runs noticeably faster in this mode.
|
||||
.TP
|
||||
.BI \-scale " M/N"
|
||||
Scale the output image by a factor M/N. Currently the scale factor must be
|
||||
M/8, where M is an integer between 1 and 16 inclusive, or any reduced fraction
|
||||
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
|
||||
.B \-bmp
|
||||
Select BMP output format (Windows flavor). 8-bit colormapped format is
|
||||
emitted if
|
||||
.B \-colors
|
||||
or
|
||||
.B \-grayscale
|
||||
is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color
|
||||
format is emitted.
|
||||
.TP
|
||||
.B \-gif
|
||||
Select GIF output format. Since GIF does not support more than 256 colors,
|
||||
.B \-colors 256
|
||||
is assumed (unless you specify a smaller number of colors).
|
||||
.TP
|
||||
.B \-os2
|
||||
Select BMP output format (OS/2 1.x flavor). 8-bit colormapped format is
|
||||
emitted if
|
||||
.B \-colors
|
||||
or
|
||||
.B \-grayscale
|
||||
is specified, or if the JPEG file is gray-scale; 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
|
||||
.B \-grayscale
|
||||
is specified; otherwise PPM is emitted.
|
||||
.TP
|
||||
.B \-rle
|
||||
Select RLE output format. (Requires URT library.)
|
||||
.TP
|
||||
.B \-targa
|
||||
Select Targa output format. Gray-scale format is emitted if the JPEG file is
|
||||
gray-scale or if
|
||||
.B \-grayscale
|
||||
is specified; otherwise, colormapped format is emitted if
|
||||
.B \-colors
|
||||
is specified; otherwise, 24-bit full-color format is emitted.
|
||||
.PP
|
||||
Switches for advanced users:
|
||||
.TP
|
||||
.B \-dct int
|
||||
Use integer DCT method (default).
|
||||
.TP
|
||||
.B \-dct fast
|
||||
Use fast integer DCT (less accurate).
|
||||
.TP
|
||||
.B \-dct float
|
||||
Use floating-point DCT method.
|
||||
The float method is very slightly more accurate than the int method, but is
|
||||
much slower unless your machine has very fast floating-point hardware. Also
|
||||
note that results of the floating-point method may vary slightly across
|
||||
machines, while the integer methods should give the same results everywhere.
|
||||
The fast integer method is much less accurate than the other two.
|
||||
.TP
|
||||
.B \-dither fs
|
||||
Use Floyd-Steinberg dithering in color quantization.
|
||||
.TP
|
||||
.B \-dither ordered
|
||||
Use ordered dithering in color quantization.
|
||||
.TP
|
||||
.B \-dither none
|
||||
Do not use dithering in color quantization.
|
||||
By default, Floyd-Steinberg dithering is applied when quantizing colors; this
|
||||
is slow but usually produces the best results. Ordered dither is a compromise
|
||||
between speed and quality; no dithering is fast but usually looks awful. Note
|
||||
that these switches have no effect unless color quantization is being done.
|
||||
Ordered dither is only available in
|
||||
.B \-onepass
|
||||
mode.
|
||||
.TP
|
||||
.BI \-map " file"
|
||||
Quantize to the colors used in the specified image file. This is useful for
|
||||
producing multiple files with identical color maps, or for forcing a
|
||||
predefined set of colors to be used. The
|
||||
.I file
|
||||
must be a GIF or PPM file. This option overrides
|
||||
.B \-colors
|
||||
and
|
||||
.BR \-onepass .
|
||||
.TP
|
||||
.B \-nosmooth
|
||||
Use a faster, lower-quality upsampling routine.
|
||||
.TP
|
||||
.B \-onepass
|
||||
Use one-pass instead of two-pass color quantization. The one-pass method is
|
||||
faster and needs less memory, but it produces a lower-quality image.
|
||||
.B \-onepass
|
||||
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
|
||||
method is no improvement then).
|
||||
.TP
|
||||
.BI \-maxmemory " N"
|
||||
Set limit for amount of memory to use in processing large images. Value is
|
||||
in thousands of bytes, or millions of bytes if "M" is attached to the
|
||||
number. For example,
|
||||
.B \-max 4m
|
||||
selects 4000000 bytes. If more space is needed, temporary files will be used.
|
||||
.TP
|
||||
.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
|
||||
give more output. Also, version information is printed at startup.
|
||||
.TP
|
||||
.B \-debug
|
||||
Same as
|
||||
.BR \-verbose .
|
||||
.SH EXAMPLES
|
||||
.LP
|
||||
This example decompresses the JPEG file foo.jpg, quantizes it to
|
||||
256 colors, and saves the output in 8-bit BMP format in foo.bmp:
|
||||
.IP
|
||||
.B djpeg \-colors 256 \-bmp
|
||||
.I foo.jpg
|
||||
.B >
|
||||
.I foo.bmp
|
||||
.SH HINTS
|
||||
To get a quick preview of an image, use the
|
||||
.B \-grayscale
|
||||
and/or
|
||||
.B \-scale
|
||||
switches.
|
||||
.B \-grayscale \-scale 1/8
|
||||
is the fastest case.
|
||||
.PP
|
||||
Several options are available that trade off image quality to gain speed.
|
||||
.B \-fast
|
||||
turns on the recommended settings.
|
||||
.PP
|
||||
.B \-dct fast
|
||||
and/or
|
||||
.B \-nosmooth
|
||||
gain speed at a small sacrifice in quality.
|
||||
When producing a color-quantized image,
|
||||
.B \-onepass \-dither ordered
|
||||
is fast but much lower quality than the default behavior.
|
||||
.B \-dither none
|
||||
may give acceptable results in two-pass mode, but is seldom tolerable in
|
||||
one-pass mode.
|
||||
.PP
|
||||
If you are fortunate enough to have very fast floating point hardware,
|
||||
\fB\-dct float\fR may be even faster than \fB\-dct fast\fR. But on most
|
||||
machines \fB\-dct float\fR is slower than \fB\-dct int\fR; in this case it is
|
||||
not worth using, because its theoretical accuracy advantage is too small to be
|
||||
significant in practice.
|
||||
.SH ENVIRONMENT
|
||||
.TP
|
||||
.B JPEGMEM
|
||||
If this environment variable is set, its value is the default memory limit.
|
||||
The value is specified as described for the
|
||||
.B \-maxmemory
|
||||
switch.
|
||||
.B JPEGMEM
|
||||
overrides the default value specified when the program was compiled, and
|
||||
itself is overridden by an explicit
|
||||
.BR \-maxmemory .
|
||||
.SH SEE ALSO
|
||||
.BR cjpeg (1),
|
||||
.BR jpegtran (1),
|
||||
.BR rdjpgcom (1),
|
||||
.BR wrjpgcom (1)
|
||||
.br
|
||||
.BR ppm (5),
|
||||
.BR pgm (5)
|
||||
.br
|
||||
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
|
||||
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.
|
||||
672
jpegturbo/djpeg.c
Normal file
672
jpegturbo/djpeg.c
Normal file
|
|
@ -0,0 +1,672 @@
|
|||
/*
|
||||
* djpeg.c
|
||||
*
|
||||
* This file was part of the Independent JPEG Group's software:
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* libjpeg-turbo Modifications:
|
||||
* Copyright (C) 2010-2011, 2013, 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.
|
||||
* It should work on any system with Unix- or MS-DOS-style command lines.
|
||||
*
|
||||
* Two different command line styles are permitted, depending on the
|
||||
* compile-time switch TWO_FILE_COMMANDLINE:
|
||||
* djpeg [options] inputfile outputfile
|
||||
* 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).
|
||||
* The second style is convenient on Unix but is unhelpful on systems that
|
||||
* 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
|
||||
* works regardless of which command line style is used.
|
||||
*/
|
||||
|
||||
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
|
||||
#include "jversion.h" /* for version message */
|
||||
#include "config.h"
|
||||
|
||||
#include <ctype.h> /* to declare isprint() */
|
||||
|
||||
#ifdef USE_CCOMMAND /* command-line reader for Macintosh */
|
||||
#ifdef __MWERKS__
|
||||
#include <SIOUX.h> /* Metrowerks needs this */
|
||||
#include <console.h> /* ... and this */
|
||||
#endif
|
||||
#ifdef THINK_C
|
||||
#include <console.h> /* Think declares it here */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
/* Create the add-on message string table. */
|
||||
|
||||
#define JMESSAGE(code,string) string ,
|
||||
|
||||
static const char * const cdjpeg_message_table[] = {
|
||||
#include "cderror.h"
|
||||
NULL
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* This list defines the known output image formats
|
||||
* (not all of which need be supported by a given version).
|
||||
* You can change the default output format by defining DEFAULT_FMT;
|
||||
* indeed, you had better do so if you undefine PPM_SUPPORTED.
|
||||
*/
|
||||
|
||||
typedef enum {
|
||||
FMT_BMP, /* BMP format (Windows flavor) */
|
||||
FMT_GIF, /* GIF format */
|
||||
FMT_OS2, /* BMP format (OS/2 flavor) */
|
||||
FMT_PPM, /* PPM/PGM (PBMPLUS formats) */
|
||||
FMT_RLE, /* RLE format */
|
||||
FMT_TARGA, /* Targa format */
|
||||
FMT_TIFF /* TIFF format */
|
||||
} IMAGE_FORMATS;
|
||||
|
||||
#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */
|
||||
#define DEFAULT_FMT FMT_PPM
|
||||
#endif
|
||||
|
||||
static IMAGE_FORMATS requested_fmt;
|
||||
|
||||
|
||||
/*
|
||||
* Argument-parsing code.
|
||||
* The switch parser is designed to be useful with DOS-style command line
|
||||
* syntax, ie, intermixed switches and file names, where only the switches
|
||||
* to the left of a given file name affect processing of that file.
|
||||
* The main program in this file doesn't actually use this capability...
|
||||
*/
|
||||
|
||||
|
||||
static const char * progname; /* program name for error messages */
|
||||
static char * outfilename; /* for -outfile switch */
|
||||
boolean memsrc; /* for -memsrc switch */
|
||||
#define INPUT_BUF_SIZE 4096
|
||||
|
||||
|
||||
LOCAL(void)
|
||||
usage (void)
|
||||
/* complain about bad command line */
|
||||
{
|
||||
fprintf(stderr, "usage: %s [switches] ", progname);
|
||||
#ifdef TWO_FILE_COMMANDLINE
|
||||
fprintf(stderr, "inputfile outputfile\n");
|
||||
#else
|
||||
fprintf(stderr, "[inputfile]\n");
|
||||
#endif
|
||||
|
||||
fprintf(stderr, "Switches (names may be abbreviated):\n");
|
||||
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");
|
||||
#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)" : ""));
|
||||
#endif
|
||||
#ifdef GIF_SUPPORTED
|
||||
fprintf(stderr, " -gif Select GIF output format%s\n",
|
||||
(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)" : ""));
|
||||
#endif
|
||||
#ifdef PPM_SUPPORTED
|
||||
fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n",
|
||||
(DEFAULT_FMT == FMT_PPM ? " (default)" : ""));
|
||||
#endif
|
||||
#ifdef RLE_SUPPORTED
|
||||
fprintf(stderr, " -rle Select Utah RLE output format%s\n",
|
||||
(DEFAULT_FMT == FMT_RLE ? " (default)" : ""));
|
||||
#endif
|
||||
#ifdef TARGA_SUPPORTED
|
||||
fprintf(stderr, " -targa Select Targa output format%s\n",
|
||||
(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)" : ""));
|
||||
#endif
|
||||
#ifdef DCT_IFAST_SUPPORTED
|
||||
fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n",
|
||||
(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)" : ""));
|
||||
#endif
|
||||
fprintf(stderr, " -dither fs Use F-S dithering (default)\n");
|
||||
fprintf(stderr, " -dither none Don't use dithering in quantization\n");
|
||||
fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n");
|
||||
#ifdef QUANT_2PASS_SUPPORTED
|
||||
fprintf(stderr, " -map FILE Map to colors used in named image file\n");
|
||||
#endif
|
||||
fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n");
|
||||
#ifdef QUANT_1PASS_SUPPORTED
|
||||
fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n");
|
||||
#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");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
|
||||
LOCAL(int)
|
||||
parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
|
||||
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;
|
||||
* they have presumably been processed in a previous iteration.
|
||||
* (Pass 0 for last_file_arg_seen on the first or only iteration.)
|
||||
* for_real is FALSE on the first (dummy) pass; we may skip any expensive
|
||||
* processing.
|
||||
*/
|
||||
{
|
||||
int argn;
|
||||
char * arg;
|
||||
|
||||
/* Set up default JPEG parameters. */
|
||||
requested_fmt = DEFAULT_FMT; /* set default output file format */
|
||||
outfilename = NULL;
|
||||
memsrc = FALSE;
|
||||
cinfo->err->trace_level = 0;
|
||||
|
||||
/* Scan command line options, adjust parameters */
|
||||
|
||||
for (argn = 1; argn < argc; argn++) {
|
||||
arg = argv[argn];
|
||||
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 */
|
||||
continue; /* ignore this name if previously processed */
|
||||
}
|
||||
break; /* else done parsing switches */
|
||||
}
|
||||
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)) {
|
||||
/* Do color quantization. */
|
||||
int val;
|
||||
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
if (sscanf(argv[argn], "%d", &val) != 1)
|
||||
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 */
|
||||
usage();
|
||||
if (keymatch(argv[argn], "int", 1)) {
|
||||
cinfo->dct_method = JDCT_ISLOW;
|
||||
} else if (keymatch(argv[argn], "fast", 2)) {
|
||||
cinfo->dct_method = JDCT_IFAST;
|
||||
} else if (keymatch(argv[argn], "float", 2)) {
|
||||
cinfo->dct_method = JDCT_FLOAT;
|
||||
} else
|
||||
usage();
|
||||
|
||||
} else if (keymatch(arg, "dither", 2)) {
|
||||
/* Select dithering algorithm. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
if (keymatch(argv[argn], "fs", 2)) {
|
||||
cinfo->dither_mode = JDITHER_FS;
|
||||
} else if (keymatch(argv[argn], "none", 2)) {
|
||||
cinfo->dither_mode = JDITHER_NONE;
|
||||
} else if (keymatch(argv[argn], "ordered", 2)) {
|
||||
cinfo->dither_mode = JDITHER_ORDERED;
|
||||
} else
|
||||
usage();
|
||||
|
||||
} else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
|
||||
/* Enable debug printouts. */
|
||||
/* On first -d, print version identification */
|
||||
static boolean printed_version = FALSE;
|
||||
|
||||
if (! printed_version) {
|
||||
fprintf(stderr, "%s version %s (build %s)\n",
|
||||
PACKAGE_NAME, VERSION, BUILD);
|
||||
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, "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->dct_method = JDCT_FASTEST;
|
||||
cinfo->do_fancy_upsampling = FALSE;
|
||||
|
||||
} else if (keymatch(arg, "gif", 1)) {
|
||||
/* GIF output format. */
|
||||
requested_fmt = FMT_GIF;
|
||||
|
||||
} else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) {
|
||||
/* 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, "map", 3)) {
|
||||
/* Quantize to a color map taken from an input file. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
if (for_real) { /* too expensive to do twice! */
|
||||
#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */
|
||||
FILE * mapfile;
|
||||
|
||||
if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) {
|
||||
fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
read_color_map(cinfo, mapfile);
|
||||
fclose(mapfile);
|
||||
cinfo->quantize_colors = TRUE;
|
||||
#else
|
||||
ERREXIT(cinfo, JERR_NOT_COMPILED);
|
||||
#endif
|
||||
}
|
||||
|
||||
} 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 */
|
||||
usage();
|
||||
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
|
||||
usage();
|
||||
if (ch == 'm' || ch == 'M')
|
||||
lval *= 1000L;
|
||||
cinfo->mem->max_memory_to_use = lval * 1000L;
|
||||
|
||||
} else if (keymatch(arg, "nosmooth", 3)) {
|
||||
/* Suppress fancy upsampling */
|
||||
cinfo->do_fancy_upsampling = FALSE;
|
||||
|
||||
} else if (keymatch(arg, "onepass", 3)) {
|
||||
/* Use fast one-pass quantization. */
|
||||
cinfo->two_pass_quantize = FALSE;
|
||||
|
||||
} else if (keymatch(arg, "os2", 3)) {
|
||||
/* BMP output format (OS/2 flavor). */
|
||||
requested_fmt = FMT_OS2;
|
||||
|
||||
} else if (keymatch(arg, "outfile", 4)) {
|
||||
/* Set output file name. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
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. */
|
||||
requested_fmt = FMT_PPM;
|
||||
|
||||
} else if (keymatch(arg, "rle", 1)) {
|
||||
/* RLE output format. */
|
||||
requested_fmt = FMT_RLE;
|
||||
|
||||
} else if (keymatch(arg, "scale", 1)) {
|
||||
/* Scale the output image by a fraction M/N. */
|
||||
if (++argn >= argc) /* advance to next argument */
|
||||
usage();
|
||||
if (sscanf(argv[argn], "%d/%d",
|
||||
&cinfo->scale_num, &cinfo->scale_denom) != 2)
|
||||
usage();
|
||||
|
||||
} else if (keymatch(arg, "targa", 1)) {
|
||||
/* Targa output format. */
|
||||
requested_fmt = FMT_TARGA;
|
||||
|
||||
} else {
|
||||
usage(); /* bogus switch */
|
||||
}
|
||||
}
|
||||
|
||||
return argn; /* return index of next arg (file name) */
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* 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, to the extent possible.
|
||||
* Note this code relies on a non-suspending data source.
|
||||
*/
|
||||
|
||||
LOCAL(unsigned int)
|
||||
jpeg_getc (j_decompress_ptr cinfo)
|
||||
/* Read next byte */
|
||||
{
|
||||
struct jpeg_source_mgr * datasrc = cinfo->src;
|
||||
|
||||
if (datasrc->bytes_in_buffer == 0) {
|
||||
if (! (*datasrc->fill_input_buffer) (cinfo))
|
||||
ERREXIT(cinfo, JERR_CANT_SUSPEND);
|
||||
}
|
||||
datasrc->bytes_in_buffer--;
|
||||
return GETJOCTET(*datasrc->next_input_byte++);
|
||||
}
|
||||
|
||||
|
||||
METHODDEF(boolean)
|
||||
print_text_marker (j_decompress_ptr cinfo)
|
||||
{
|
||||
boolean traceit = (cinfo->err->trace_level >= 1);
|
||||
INT32 length;
|
||||
unsigned int ch;
|
||||
unsigned int lastch = 0;
|
||||
|
||||
length = jpeg_getc(cinfo) << 8;
|
||||
length += jpeg_getc(cinfo);
|
||||
length -= 2; /* discount the length word itself */
|
||||
|
||||
if (traceit) {
|
||||
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);
|
||||
if (traceit) {
|
||||
/* Emit the character in a readable form.
|
||||
* Nonprintables are converted to \nnn form,
|
||||
* while \ is converted to \\.
|
||||
* Newlines in CR, CR/LF, or LF form will be printed as one newline.
|
||||
*/
|
||||
if (ch == '\r') {
|
||||
fprintf(stderr, "\n");
|
||||
} else if (ch == '\n') {
|
||||
if (lastch != '\r')
|
||||
fprintf(stderr, "\n");
|
||||
} else if (ch == '\\') {
|
||||
fprintf(stderr, "\\\\");
|
||||
} else if (isprint(ch)) {
|
||||
putc(ch, stderr);
|
||||
} else {
|
||||
fprintf(stderr, "\\%03o", ch);
|
||||
}
|
||||
lastch = ch;
|
||||
}
|
||||
}
|
||||
|
||||
if (traceit)
|
||||
fprintf(stderr, "\n");
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* The main program.
|
||||
*/
|
||||
|
||||
int
|
||||
main (int argc, char **argv)
|
||||
{
|
||||
struct jpeg_decompress_struct cinfo;
|
||||
struct jpeg_error_mgr jerr;
|
||||
#ifdef PROGRESS_REPORT
|
||||
struct cdjpeg_progress_mgr progress;
|
||||
#endif
|
||||
int file_index;
|
||||
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. */
|
||||
#ifdef USE_CCOMMAND
|
||||
argc = ccommand(&argv);
|
||||
#endif
|
||||
|
||||
progname = argv[0];
|
||||
if (progname == NULL || progname[0] == 0)
|
||||
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);
|
||||
jpeg_create_decompress(&cinfo);
|
||||
/* Add some application-specific error messages (from cderror.h) */
|
||||
jerr.addon_message_table = cdjpeg_message_table;
|
||||
jerr.first_addon_message = JMSG_FIRSTADDONCODE;
|
||||
jerr.last_addon_message = JMSG_LASTADDONCODE;
|
||||
|
||||
/* Insert custom marker processor for COM and APP12.
|
||||
* APP12 is used by some digital camera makers for textual info,
|
||||
* so we provide the ability to display it as text.
|
||||
* If you like, additional APPn marker types can be selected for display,
|
||||
* but don't try to override APP0 or APP14 this way (see libjpeg.txt).
|
||||
*/
|
||||
jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker);
|
||||
jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker);
|
||||
|
||||
/* Now safe to enable signal catcher. */
|
||||
#ifdef NEED_SIGNAL_CATCHER
|
||||
enable_signal_catcher((j_common_ptr) &cinfo);
|
||||
#endif
|
||||
|
||||
/* Scan command line to find file names. */
|
||||
/* It is convenient to use just one switch-parsing routine, but the switch
|
||||
* values read here are ignored; we will rescan the switches after opening
|
||||
* the input file.
|
||||
* (Exception: tracing level set here controls verbosity for COM markers
|
||||
* found during jpeg_read_header...)
|
||||
*/
|
||||
|
||||
file_index = parse_switches(&cinfo, argc, argv, 0, FALSE);
|
||||
|
||||
#ifdef TWO_FILE_COMMANDLINE
|
||||
/* Must have either -outfile switch or explicit output file name */
|
||||
if (outfilename == NULL) {
|
||||
if (file_index != argc-2) {
|
||||
fprintf(stderr, "%s: must name one input and one output file\n",
|
||||
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);
|
||||
usage();
|
||||
}
|
||||
}
|
||||
#else
|
||||
/* Unix style: expect zero or one file name */
|
||||
if (file_index < argc-1) {
|
||||
fprintf(stderr, "%s: only one input file\n", progname);
|
||||
usage();
|
||||
}
|
||||
#endif /* TWO_FILE_COMMANDLINE */
|
||||
|
||||
/* Open the input file. */
|
||||
if (file_index < argc) {
|
||||
if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) {
|
||||
fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
} else {
|
||||
/* default input file is stdin */
|
||||
input_file = read_stdin();
|
||||
}
|
||||
|
||||
/* Open the output file. */
|
||||
if (outfilename != NULL) {
|
||||
if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) {
|
||||
fprintf(stderr, "%s: can't open %s\n", progname, outfilename);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
} else {
|
||||
/* default output file is stdout */
|
||||
output_file = write_stdout();
|
||||
}
|
||||
|
||||
#ifdef PROGRESS_REPORT
|
||||
start_progress_monitor((j_common_ptr) &cinfo, &progress);
|
||||
#endif
|
||||
|
||||
/* Specify data source for decompression */
|
||||
#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);
|
||||
|
||||
/* Adjust default decompression parameters by re-parsing the options */
|
||||
file_index = parse_switches(&cinfo, argc, argv, 0, TRUE);
|
||||
|
||||
/* Initialize the output module now to let it override any crucial
|
||||
* option settings (for instance, GIF wants to force color quantization).
|
||||
*/
|
||||
switch (requested_fmt) {
|
||||
#ifdef BMP_SUPPORTED
|
||||
case FMT_BMP:
|
||||
dest_mgr = jinit_write_bmp(&cinfo, FALSE);
|
||||
break;
|
||||
case FMT_OS2:
|
||||
dest_mgr = jinit_write_bmp(&cinfo, TRUE);
|
||||
break;
|
||||
#endif
|
||||
#ifdef GIF_SUPPORTED
|
||||
case FMT_GIF:
|
||||
dest_mgr = jinit_write_gif(&cinfo);
|
||||
break;
|
||||
#endif
|
||||
#ifdef PPM_SUPPORTED
|
||||
case FMT_PPM:
|
||||
dest_mgr = jinit_write_ppm(&cinfo);
|
||||
break;
|
||||
#endif
|
||||
#ifdef RLE_SUPPORTED
|
||||
case FMT_RLE:
|
||||
dest_mgr = jinit_write_rle(&cinfo);
|
||||
break;
|
||||
#endif
|
||||
#ifdef TARGA_SUPPORTED
|
||||
case FMT_TARGA:
|
||||
dest_mgr = jinit_write_targa(&cinfo);
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT);
|
||||
break;
|
||||
}
|
||||
dest_mgr->output_file = output_file;
|
||||
|
||||
/* Start decompressor */
|
||||
(void) jpeg_start_decompress(&cinfo);
|
||||
|
||||
/* Write output file header */
|
||||
(*dest_mgr->start_output) (&cinfo, dest_mgr);
|
||||
|
||||
/* Process data */
|
||||
while (cinfo.output_scanline < cinfo.output_height) {
|
||||
num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
|
||||
dest_mgr->buffer_height);
|
||||
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
|
||||
}
|
||||
|
||||
#ifdef PROGRESS_REPORT
|
||||
/* Hack: count final pass as done in case finish_output does an extra pass.
|
||||
* The library won't have updated completed_passes.
|
||||
*/
|
||||
progress.pub.completed_passes = progress.pub.total_passes;
|
||||
#endif
|
||||
|
||||
/* Finish decompression and release memory.
|
||||
* I must do it in this order because output module has allocated memory
|
||||
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|
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|
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<div class="contents">
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<div class="textblock">Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:</div><ul>
|
||||
<li>customFilter
|
||||
: <a class="el" href="structtjtransform.html#a43ee1bcdd2a8d7249a756774f78793c1">tjtransform</a>
|
||||
</li>
|
||||
<li>data
|
||||
: <a class="el" href="structtjtransform.html#a688fe8f1a8ecc12a538d9e561cf338e3">tjtransform</a>
|
||||
</li>
|
||||
<li>denom
|
||||
: <a class="el" href="structtjscalingfactor.html#aefbcdf3e9e62274b2d312c695f133ce3">tjscalingfactor</a>
|
||||
</li>
|
||||
<li>h
|
||||
: <a class="el" href="structtjregion.html#aecefc45a26f4d8b60dd4d825c1710115">tjregion</a>
|
||||
</li>
|
||||
<li>num
|
||||
: <a class="el" href="structtjscalingfactor.html#a9b011e57f981ee23083e2c1aa5e640ec">tjscalingfactor</a>
|
||||
</li>
|
||||
<li>op
|
||||
: <a class="el" href="structtjtransform.html#a2525aab4ba6978a1c273f74fef50e498">tjtransform</a>
|
||||
</li>
|
||||
<li>options
|
||||
: <a class="el" href="structtjtransform.html#ac0e74655baa4402209a21e1ae481c8f6">tjtransform</a>
|
||||
</li>
|
||||
<li>r
|
||||
: <a class="el" href="structtjtransform.html#ac324e5e442abec8a961e5bf219db12cf">tjtransform</a>
|
||||
</li>
|
||||
<li>w
|
||||
: <a class="el" href="structtjregion.html#ab6eb73ceef584fc23c8c8097926dce42">tjregion</a>
|
||||
</li>
|
||||
<li>x
|
||||
: <a class="el" href="structtjregion.html#a4b6a37a93997091b26a75831fa291ad9">tjregion</a>
|
||||
</li>
|
||||
<li>y
|
||||
: <a class="el" href="structtjregion.html#a7b3e0c24cfe87acc80e334cafdcf22c2">tjregion</a>
|
||||
</li>
|
||||
</ul>
|
||||
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<!-- start footer part -->
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</a> 1.8.3.1
|
||||
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|
||||
</body>
|
||||
</html>
|
||||
133
jpegturbo/doc/html/functions_vars.html
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|
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|
||||
<td style="padding-left: 0.5em;">
|
||||
<div id="projectname">TurboJPEG
|
||||
 <span id="projectnumber">1.2.1</span>
|
||||
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|
||||
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|
||||
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|
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 <ul>
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<li>customFilter
|
||||
: <a class="el" href="structtjtransform.html#a43ee1bcdd2a8d7249a756774f78793c1">tjtransform</a>
|
||||
</li>
|
||||
<li>data
|
||||
: <a class="el" href="structtjtransform.html#a688fe8f1a8ecc12a538d9e561cf338e3">tjtransform</a>
|
||||
</li>
|
||||
<li>denom
|
||||
: <a class="el" href="structtjscalingfactor.html#aefbcdf3e9e62274b2d312c695f133ce3">tjscalingfactor</a>
|
||||
</li>
|
||||
<li>h
|
||||
: <a class="el" href="structtjregion.html#aecefc45a26f4d8b60dd4d825c1710115">tjregion</a>
|
||||
</li>
|
||||
<li>num
|
||||
: <a class="el" href="structtjscalingfactor.html#a9b011e57f981ee23083e2c1aa5e640ec">tjscalingfactor</a>
|
||||
</li>
|
||||
<li>op
|
||||
: <a class="el" href="structtjtransform.html#a2525aab4ba6978a1c273f74fef50e498">tjtransform</a>
|
||||
</li>
|
||||
<li>options
|
||||
: <a class="el" href="structtjtransform.html#ac0e74655baa4402209a21e1ae481c8f6">tjtransform</a>
|
||||
</li>
|
||||
<li>r
|
||||
: <a class="el" href="structtjtransform.html#ac324e5e442abec8a961e5bf219db12cf">tjtransform</a>
|
||||
</li>
|
||||
<li>w
|
||||
: <a class="el" href="structtjregion.html#ab6eb73ceef584fc23c8c8097926dce42">tjregion</a>
|
||||
</li>
|
||||
<li>x
|
||||
: <a class="el" href="structtjregion.html#a4b6a37a93997091b26a75831fa291ad9">tjregion</a>
|
||||
</li>
|
||||
<li>y
|
||||
: <a class="el" href="structtjregion.html#a7b3e0c24cfe87acc80e334cafdcf22c2">tjregion</a>
|
||||
</li>
|
||||
</ul>
|
||||
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|
||||
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|
||||
</body>
|
||||
</html>
|
||||
1670
jpegturbo/doc/html/group___turbo_j_p_e_g.html
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1670
jpegturbo/doc/html/group___turbo_j_p_e_g.html
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jpegturbo/doc/html/index.html
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89
jpegturbo/doc/html/index.html
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|
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|
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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5
jpegturbo/doc/html/search/all_6f.js
Normal file
5
jpegturbo/doc/html/search/all_6f.js
Normal file
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26
jpegturbo/doc/html/search/all_72.html
Normal file
26
jpegturbo/doc/html/search/all_72.html
Normal file
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4
jpegturbo/doc/html/search/all_72.js
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4
jpegturbo/doc/html/search/all_72.js
Normal file
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26
jpegturbo/doc/html/search/all_74.html
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26
jpegturbo/doc/html/search/all_74.html
Normal file
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75
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26
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26
jpegturbo/doc/html/search/all_77.html
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jpegturbo/doc/html/search/all_77.js
Normal file
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jpegturbo/doc/html/search/all_77.js
Normal file
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Normal file
26
jpegturbo/doc/html/search/all_78.html
Normal file
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4
jpegturbo/doc/html/search/all_78.js
Normal file
4
jpegturbo/doc/html/search/all_78.js
Normal file
|
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26
jpegturbo/doc/html/search/all_79.html
Normal file
26
jpegturbo/doc/html/search/all_79.html
Normal file
|
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jpegturbo/doc/html/search/all_79.js
Normal file
4
jpegturbo/doc/html/search/all_79.js
Normal file
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jpegturbo/doc/html/search/classes_74.html
Normal file
26
jpegturbo/doc/html/search/classes_74.html
Normal file
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6
jpegturbo/doc/html/search/classes_74.js
Normal file
6
jpegturbo/doc/html/search/classes_74.js
Normal file
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jpegturbo/doc/html/search/close.png
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26
jpegturbo/doc/html/search/enums_74.html
Normal file
26
jpegturbo/doc/html/search/enums_74.html
Normal file
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jpegturbo/doc/html/search/enums_74.js
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6
jpegturbo/doc/html/search/enums_74.js
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26
jpegturbo/doc/html/search/enumvalues_74.html
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26
jpegturbo/doc/html/search/enumvalues_74.html
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|
||||
['tjinittransform',['tjInitTransform',['../group___turbo_j_p_e_g.html#ga3155b775bfbac9dbba869b95a0367902',1,'turbojpeg.h']]],
|
||||
['tjtransform',['tjTransform',['../group___turbo_j_p_e_g.html#gae403193ceb4aafb7e0f56ab587b48616',1,'turbojpeg.h']]]
|
||||
];
|
||||
26
jpegturbo/doc/html/search/groups_74.html
Normal file
26
jpegturbo/doc/html/search/groups_74.html
Normal file
|
|
@ -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="groups_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>
|
||||
4
jpegturbo/doc/html/search/groups_74.js
Normal file
4
jpegturbo/doc/html/search/groups_74.js
Normal file
|
|
@ -0,0 +1,4 @@
|
|||
var searchData=
|
||||
[
|
||||
['turbojpeg',['TurboJPEG',['../group___turbo_j_p_e_g.html',1,'']]]
|
||||
];
|
||||
BIN
jpegturbo/doc/html/search/mag_sel.png
Normal file
BIN
jpegturbo/doc/html/search/mag_sel.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 563 B |
12
jpegturbo/doc/html/search/nomatches.html
Normal file
12
jpegturbo/doc/html/search/nomatches.html
Normal file
|
|
@ -0,0 +1,12 @@
|
|||
<!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"/>
|
||||
<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>
|
||||
271
jpegturbo/doc/html/search/search.css
Normal file
271
jpegturbo/doc/html/search/search.css
Normal file
|
|
@ -0,0 +1,271 @@
|
|||
/*---------------- Search Box */
|
||||
|
||||
#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;
|
||||
}
|
||||
|
||||
.left #MSearchSelect {
|
||||
left:4px;
|
||||
}
|
||||
|
||||
.right #MSearchSelect {
|
||||
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;
|
||||
}
|
||||
|
||||
/*---------------- Search filter selection */
|
||||
|
||||
#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;
|
||||
-moz-border-radius: 4px;
|
||||
-webkit-border-top-left-radius: 4px;
|
||||
-webkit-border-top-right-radius: 4px;
|
||||
-webkit-border-bottom-left-radius: 4px;
|
||||
-webkit-border-bottom-right-radius: 4px;
|
||||
-webkit-box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.15);
|
||||
}
|
||||
|
||||
.SelectItem {
|
||||
font: 8pt Arial, Verdana, sans-serif;
|
||||
padding-left: 2px;
|
||||
padding-right: 12px;
|
||||
border: 0px;
|
||||
}
|
||||
|
||||
span.SelectionMark {
|
||||
margin-right: 4px;
|
||||
font-family: monospace;
|
||||
outline-style: none;
|
||||
text-decoration: none;
|
||||
}
|
||||
|
||||
a.SelectItem {
|
||||
display: block;
|
||||
outline-style: none;
|
||||
color: #000000;
|
||||
text-decoration: none;
|
||||
padding-left: 6px;
|
||||
padding-right: 12px;
|
||||
}
|
||||
|
||||
a.SelectItem:focus,
|
||||
a.SelectItem:active {
|
||||
color: #000000;
|
||||
outline-style: none;
|
||||
text-decoration: none;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
/* ----------------------------------- */
|
||||
|
||||
|
||||
#SRIndex {
|
||||
clear:both;
|
||||
padding-bottom: 15px;
|
||||
}
|
||||
|
||||
.SREntry {
|
||||
font-size: 10pt;
|
||||
padding-left: 1ex;
|
||||
}
|
||||
|
||||
.SRPage .SREntry {
|
||||
font-size: 8pt;
|
||||
padding: 1px 5px;
|
||||
}
|
||||
|
||||
body.SRPage {
|
||||
margin: 5px 2px;
|
||||
}
|
||||
|
||||
.SRChildren {
|
||||
padding-left: 3ex; padding-bottom: .5em
|
||||
}
|
||||
|
||||
.SRPage .SRChildren {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.SRSymbol {
|
||||
font-weight: bold;
|
||||
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;
|
||||
}
|
||||
|
||||
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 {
|
||||
background-color: #F0F3F8;
|
||||
}
|
||||
|
||||
.pages b {
|
||||
color: white;
|
||||
padding: 5px 5px 3px 5px;
|
||||
background-image: url("../tab_a.png");
|
||||
background-repeat: repeat-x;
|
||||
text-shadow: 0 1px 1px #000000;
|
||||
}
|
||||
|
||||
.pages {
|
||||
line-height: 17px;
|
||||
margin-left: 4px;
|
||||
text-decoration: none;
|
||||
}
|
||||
|
||||
.hl {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
#searchresults {
|
||||
margin-bottom: 20px;
|
||||
}
|
||||
|
||||
.searchpages {
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
809
jpegturbo/doc/html/search/search.js
Normal file
809
jpegturbo/doc/html/search/search.js
Normal file
|
|
@ -0,0 +1,809 @@
|
|||
// 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,
|
||||
// which is Copyright (C) 2003-2008 Greg Valure
|
||||
// Natural Docs is licensed under the GPL.
|
||||
|
||||
var indexSectionsWithContent =
|
||||
{
|
||||
0: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001100010000011001010011100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
|
||||
1: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
|
||||
2: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
|
||||
3: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001100010000011001010011100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
|
||||
4: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
|
||||
5: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
|
||||
6: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
|
||||
7: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
|
||||
};
|
||||
|
||||
var indexSectionNames =
|
||||
{
|
||||
0: "all",
|
||||
1: "classes",
|
||||
2: "functions",
|
||||
3: "variables",
|
||||
4: "typedefs",
|
||||
5: "enums",
|
||||
6: "enumvalues",
|
||||
7: "groups"
|
||||
};
|
||||
|
||||
function convertToId(search)
|
||||
{
|
||||
var result = '';
|
||||
for (i=0;i<search.length;i++)
|
||||
{
|
||||
var c = search.charAt(i);
|
||||
var cn = c.charCodeAt(0);
|
||||
if (c.match(/[a-z0-9]/))
|
||||
{
|
||||
result+=c;
|
||||
}
|
||||
else if (cn<16)
|
||||
{
|
||||
result+="_0"+cn.toString(16);
|
||||
}
|
||||
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='•';
|
||||
}
|
||||
else
|
||||
{
|
||||
node.innerHTML=' ';
|
||||
}
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
BIN
jpegturbo/doc/html/search/search_l.png
Normal file
BIN
jpegturbo/doc/html/search/search_l.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 604 B |
BIN
jpegturbo/doc/html/search/search_m.png
Normal file
BIN
jpegturbo/doc/html/search/search_m.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 158 B |
Some files were not shown because too many files have changed in this diff Show more
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Reference in a new issue