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2024-08-17 16:05:27 +08:00
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.gitmodules vendored
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[submodule "android/extern/libvncserver"] [submodule "android/extern/libvncserver"]
path = android/extern/libvncserver path = android/extern/libvncserver
url = ../../gujjwal00/libvncserver.git url = https://github.com/gujjwal00/libvncserver.git
[submodule "android/extern/libjpeg-turbo"] [submodule "android/extern/libjpeg-turbo"]
path = android/extern/libjpeg-turbo path = android/extern/libjpeg-turbo
url = ../../libjpeg-turbo/libjpeg-turbo.git url = https://github.com/libjpeg-turbo/libjpeg-turbo.git
[submodule "android/extern/wolfssl"] [submodule "android/extern/wolfssl"]
path = android/extern/wolfssl path = android/extern/wolfssl
url = ../../wolfSSL/wolfssl.git url = https://github.com/wolfSSL/wolfssl.git

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android/extern/libjpeg-turbo/.gitattributes vendored
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/appveyor.yml export-ignore
/.gitattributes export-ignore
/.github export-ignore
*.ppm binary

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android/extern/libjpeg-turbo/.github/CONTRIBUTING.md vendored
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Contributing to libjpeg-turbo
=============================
libjpeg-turbo is a stable and mature product with a worldwide reach, it is an
ISO/ITU-T reference implementation of the JPEG standard, and its maintainer
does not earn a salary for maintaining it. Thus, not every code contribution
can or will be accepted into the libjpeg-turbo code base. In order to maximize
the chances that a code contribution is acceptable, please adhere to the
following guidelines:
1. If the code contribution is a bug fix, then please ensure that enough
information is provided so that the maintainer can readily reproduce and
document the bug. That information should include:
- A clear and concise description of the bug
- The steps and (if applicable) images necessary to reproduce the bug
- The compilers, operating systems, and CPUs with which the bug was
observed
- The versions of libjpeg-turbo with which the bug was observed
- If the bug is a regression, the specific commit that introduced the bug
(use `git bisect` to determine this)
2. If the code contribution will implement a major new feature, then please
contact the project maintainer (through a
[GitHub issue](https://github.com/libjpeg-turbo/libjpeg-turbo/issues/new),
[direct e-mail](https://libjpeg-turbo.org/About/Contact), or the
[libjpeg-turbo-devel mailing list](https://libjpeg-turbo.org/About/MailingLists))
prior to implementing the feature. In general, major new features that are
potentially disruptive to the quality of libjpeg-turbo are unlikely to be
accepted unless:
- The new feature is within the existing scope of libjpeg-turbo.
- The new feature has been thoroughly regression tested and benchmarked on
all of the supported platforms that are potentially affected by it.
- The new feature has been documented clearly and concisely in the change
log and (if applicable) the libjpeg and TurboJPEG API documentation and
man pages.
- The code implementing the new feature is formatted consistently with the
rest of the libjpeg-turbo code base (use
[checkstyle](https://github.com/libjpeg-turbo/checkstyle) to validate
this.)
- The new feature does not introduce new members into the exposed libjpeg
API structures (doing so would break backward ABI compatibility.)
- The new feature does not alter existing libjpeg-turbo usage or
development workflows.
- The code implementing the new feature is elegant, easily maintainable,
and causes the least possible amount of disruption to the libjpeg-turbo
code base.
- The new feature is based on the dev branch of the libjpeg-turbo
repository.
... OR ...
- Your organization is prepared to pay for the labor necessary to ensure
all of the above. Even the most well-written patches can still require
a significant amount of labor to clean up, test, and integrate. (See
above RE: the maintainer not earning a salary.)
Specific types of features that *will not* be accepted:
- Features that extend the scope of libjpeg-turbo to support image formats
other than DCT-based JPEG and JFIF
- Features that extend the scope of libjpeg-turbo to support image
processing algorithms that are not necessary for JPEG compression or
decompression
- Extensions to the JPEG format that have not been approved by the
appropriate standards bodies
- Non-trivial performance enhancements that have less than a 5% overall
impact on performance
3. If the code contribution is a build system enhancement, then please be
prepared to justify the enhancement. In general, build system enhancements
are unlikely to be accepted unless:
- The enhancement is potentially beneficial to a significant number of
upstream libjpeg-turbo users/developers. (If the enhancement is only
beneficial to a downstream project, then it does not belong here.)
- The enhancement has been tested with the following CMake versions:
- The earliest version of CMake that libjpeg-turbo currently supports
(refer to CMakeLists.txt)
- The most recent major version of CMake
- (if applicable) The earliest version of CMake with which the
enhancement can be used
- The enhancement has been tested on all of the major platforms (Mac,
Linux, Windows/Visual C++, Windows/MinGW) that are potentially affected
by it.
- The enhancement does not introduce new build system requirements or CMake
variables unless absolutely necessary.
- The enhancement does not alter existing libjpeg-turbo development
workflows.
Specific types of build system enhancements that *will not* be accepted:
- Enhancements that allow libjpeg-turbo to be built from a subdirectory
of a downstream repository. These enhancements are not maintainable in
the upstream libjpeg-turbo build system. Use the CMake
`ExternalProject_Add()` function instead.
- Enhancements that introduce new (non-CMake-based) build systems

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android/extern/libjpeg-turbo/.github/FUNDING.yml vendored
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github: libjpeg-turbo

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android/extern/libjpeg-turbo/.github/ISSUE_TEMPLATE/bug-report.md vendored
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---
name: Bug Report
about: Inform the libjpeg-turbo maintainer about unexpected, reproducible behavior
title: ''
labels: bug
assignees: dcommander
---
**Have you searched the existing issues (both open and closed) in the libjpeg-turbo issue tracker to ensure that this bug report is not a duplicate?**
**Does this bug report describe one of the [two known and unsolvable issues with the JPEG format](https://libjpeg-turbo.org/pmwiki/uploads/About/TwoIssueswiththeJPEGStandard.pdf)?**
**Clear and concise description of the bug:**
**Steps to reproduce the bug (using *only* libjpeg-turbo):**
**Image(s) needed in order to reproduce the bug (if applicable):**
**Expected behavior:**
**Observed behavior:**
**Platform(s) (compiler version, operating system version, CPU) on which the bug was observed:**
**libjpeg-turbo release(s), commit(s), or branch(es) in which the bug was observed (always test the tip of the main branch or the latest [stable pre-release](https://libjpeg-turbo.org/DeveloperInfo/PreReleases) to verify that the bug hasn't already been fixed):**
**If the bug is a regression, the specific commit that introduced the regression (use `git bisect` to determine this):**
**Additional information:**

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android/extern/libjpeg-turbo/.github/ISSUE_TEMPLATE/feature-request.md vendored
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---
name: Feature Request
about: Suggest new libjpeg-turbo functionality
title: ''
labels: enhancement
assignees: dcommander
---

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android/extern/libjpeg-turbo/.github/workflows/build.yml vendored
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name: Build
on:
push:
branches:
- '**'
tags-ignore:
- '**'
pull_request:
workflow_dispatch:
jobs:
linux:
runs-on: ubuntu-latest
steps:
- name: Set global environment variables
run: |
echo "BRANCH=${GITHUB_BASE_REF:-${GITHUB_REF#refs/heads/}}" >$GITHUB_ENV
- name: Check out code
uses: actions/checkout@v3
- name: Set up build
run: |
mkdir -p $HOME/src/ljt.nightly
docker pull dcommander/buildljt:$BRANCH
git clone --depth=1 https://github.com/libjpeg-turbo/buildscripts.git -b $BRANCH $HOME/src/buildscripts
mkdir $HOME/rpmkeys
wget --no-check-certificate "http://www.libjpeg-turbo.org/key/LJTPR-GPG-KEY" -O $HOME/rpmkeys/LJTPR-GPG-KEY
- name: Configure GPG signing
if: ${{github.event_name != 'pull_request'}}
run: |
sudo apt install -y gnupg1
printf "${{secrets.GPG_KEY}}" | base64 --decode | gpg1 --batch --import -
chmod 600 $HOME/.gnupg/gpg.conf
echo "GPG_KEY_NAME=\"${{secrets.GPG_KEY_NAME}}\"" >$HOME/src/buildscripts/gpgsign
echo "GPG_KEY_ID=${{secrets.GPG_KEY_ID}}" >>$HOME/src/buildscripts/gpgsign
echo "GPG_KEY_PASS=${{secrets.GPG_KEY_PASS}}" >>$HOME/src/buildscripts/gpgsign
- name: Build
run: |
docker run -v $HOME/src/ljt.nightly:/root/src/ljt.nightly -v $HOME/src/buildscripts:/root/src/buildscripts -v $GITHUB_WORKSPACE:/root/src/libjpeg-turbo -v $HOME/.gnupg:/root/.gnupg -v $HOME/rpmkeys:/rpmkeys -t dcommander/buildljt:$BRANCH bash -c "rpm --import /rpmkeys/LJTPR-GPG-KEY && ~/src/buildscripts/buildljt -d /root/src/libjpeg-turbo -v"
sudo chown -R runner:runner $HOME/src/ljt.nightly
mv $HOME/src/ljt.nightly/latest/log-${{github.job}}.txt $HOME/src/ljt.nightly/latest/files/
- name: Configure AWS
if: ${{github.event_name != 'pull_request'}}
uses: aws-actions/configure-aws-credentials@v1
with:
aws-access-key-id: ${{secrets.AWS_ACCESS_KEY_ID}}
aws-secret-access-key: ${{secrets.AWS_SECRET_ACCESS_KEY}}
aws-region: ${{secrets.AWS_REGION}}
- name: Deploy
if: ${{github.event_name != 'pull_request'}}
run: |
aws s3 sync --acl public-read --delete $HOME/src/ljt.nightly/latest/files/ s3://libjpeg-turbo-pr/${{env.BRANCH}}/${{github.job}}/
macos:
runs-on: macos-11
steps:
- name: Set global environment variables
run: |
echo "BRANCH=${GITHUB_BASE_REF:-${GITHUB_REF#refs/heads/}}" >$GITHUB_ENV
- name: Check out code
uses: actions/checkout@v3
- name: Set up build
run: |
brew install yasm md5sha1sum
sudo xcode-select -s /Applications/Xcode_12.4.app
mkdir -p $HOME/src/ljt.nightly
git clone --depth=1 https://github.com/libjpeg-turbo/buildscripts.git -b $BRANCH $HOME/src/buildscripts
- name: Configure GPG signing
if: ${{github.event_name != 'pull_request'}}
run: |
printf "${{secrets.GPG_KEY}}" | base64 --decode | gpg --batch --import -
echo "GPG_KEY_NAME=\"${{secrets.GPG_KEY_NAME}}\"" >$HOME/src/buildscripts/gpgsign
echo "GPG_KEY_ID=${{secrets.GPG_KEY_ID}}" >>$HOME/src/buildscripts/gpgsign
echo "GPG_KEY_PASS=${{secrets.GPG_KEY_PASS}}" >>$HOME/src/buildscripts/gpgsign
- name: Build
run: |
$HOME/src/buildscripts/buildljt -d $GITHUB_WORKSPACE -v
mv $HOME/src/ljt.nightly/latest/log-${{github.job}}.txt $HOME/src/ljt.nightly/latest/files/
- name: Configure AWS
if: ${{github.event_name != 'pull_request'}}
uses: aws-actions/configure-aws-credentials@v1
with:
aws-access-key-id: ${{secrets.AWS_ACCESS_KEY_ID}}
aws-secret-access-key: ${{secrets.AWS_SECRET_ACCESS_KEY}}
aws-region: ${{secrets.AWS_REGION}}
- name: Deploy
if: ${{github.event_name != 'pull_request'}}
run: |
aws s3 sync --acl public-read --delete $HOME/src/ljt.nightly/latest/files/ s3://libjpeg-turbo-pr/${{env.BRANCH}}/${{github.job}}/
linux-asan-ubsan:
runs-on: ubuntu-latest
steps:
- name: Check out code
uses: actions/checkout@v3
- name: Set up build
run: |
sudo apt install -y nasm
- name: Build
env:
ASAN_OPTIONS: "detect_leaks=1 symbolize=1"
CTEST_OUTPUT_ON_FAILURE: 1
run: |
mkdir build
pushd build
cmake -G"Unix Makefiles" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_C_COMPILER=clang -DCMAKE_C_FLAGS_RELWITHDEBINFO="-O1 -g -fsanitize=address,undefined -fno-sanitize-recover=all -fno-omit-frame-pointer" -DENABLE_SHARED=0 ..
export NUMCPUS=`grep -c '^processor' /proc/cpuinfo`
make -j$NUMCPUS --load-average=$NUMCPUS
make test
JSIMD_FORCESSE2=1 make test
cmake -DFLOATTEST=no-fp-contract ..
JSIMD_FORCENONE=1 make test
popd
linux-12bit:
runs-on: ubuntu-latest
steps:
- name: Check out code
uses: actions/checkout@v3
- name: Build
env:
CTEST_OUTPUT_ON_FAILURE: 1
run: |
mkdir build
pushd build
cmake -G"Unix Makefiles" -DWITH_12BIT=1 \
-DCMAKE_C_FLAGS='--std=gnu90 -Wall -Werror -Wextra -Wpedantic -pedantic-errors -Wdouble-promotion -Wformat-overflow=2 -Wformat-security -Wformat-signedness -Wformat-truncation=2 -Wformat-y2k -Wmissing-include-dirs -Wshift-overflow=2 -Wswitch-bool -Wno-unused-parameter -Wuninitialized -Wstrict-overflow=2 -Wstringop-overflow=4 -Wstringop-truncation -Wduplicated-branches -Wduplicated-cond -Wdeclaration-after-statement -Wshadow -Wunsafe-loop-optimizations -Wundef -Wcast-align -Wno-clobbered -Wjump-misses-init -Wno-sign-compare -Wlogical-op -Waggregate-return -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Wpacked -Wredundant-decls -Wnested-externs -Winline -Wno-long-long -Wdisabled-optimization -Wno-overlength-strings' \
..
export NUMCPUS=`grep -c '^processor' /proc/cpuinfo`
make -j$NUMCPUS --load-average=$NUMCPUS
make test
popd
linux-jpeg7-x32:
runs-on: ubuntu-latest
steps:
- name: Check out code
uses: actions/checkout@v3
- name: Set up build
run: |
sudo apt update
sudo apt -y --install-recommends install libc6-dev-x32 nasm
- name: Build
env:
CTEST_OUTPUT_ON_FAILURE: 1
run: |
mkdir build
pushd build
cmake -G"Unix Makefiles" -DWITH_JPEG7=1 -DCMAKE_C_FLAGS=-mx32 \
-DCMAKE_C_FLAGS='--std=gnu90 -Wall -Werror -Wextra -Wpedantic -pedantic-errors -Wdouble-promotion -Wformat-overflow=2 -Wformat-security -Wformat-signedness -Wformat-truncation=2 -Wformat-y2k -Wmissing-include-dirs -Wshift-overflow=2 -Wswitch-bool -Wno-unused-parameter -Wuninitialized -Wstrict-overflow=2 -Wstringop-overflow=4 -Wstringop-truncation -Wduplicated-branches -Wduplicated-cond -Wdeclaration-after-statement -Wshadow -Wunsafe-loop-optimizations -Wundef -Wcast-align -Wno-clobbered -Wjump-misses-init -Wno-sign-compare -Wlogical-op -Waggregate-return -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Wpacked -Wredundant-decls -Wnested-externs -Winline -Wno-long-long -Wdisabled-optimization -Wno-overlength-strings' \
..
export NUMCPUS=`grep -c '^processor' /proc/cpuinfo`
make -j$NUMCPUS --load-average=$NUMCPUS
make test
JSIMD_FORCESSE2=1 make test
cmake -DFLOATTEST=no-fp-contract ..
JSIMD_FORCENONE=1 make test
popd
linux-jpeg8:
runs-on: ubuntu-latest
steps:
- name: Check out code
uses: actions/checkout@v3
- name: Set up build
run: |
sudo apt -y install nasm
- name: Build
env:
CTEST_OUTPUT_ON_FAILURE: 1
run: |
mkdir build
pushd build
cmake -G"Unix Makefiles" -DWITH_JPEG8=1 \
-DCMAKE_C_FLAGS='--std=gnu90 -Wall -Werror -Wextra -Wpedantic -pedantic-errors -Wdouble-promotion -Wformat-overflow=2 -Wformat-security -Wformat-signedness -Wformat-truncation=2 -Wformat-y2k -Wmissing-include-dirs -Wshift-overflow=2 -Wswitch-bool -Wno-unused-parameter -Wuninitialized -Wstrict-overflow=2 -Wstringop-overflow=4 -Wstringop-truncation -Wduplicated-branches -Wduplicated-cond -Wdeclaration-after-statement -Wshadow -Wunsafe-loop-optimizations -Wundef -Wcast-align -Wno-clobbered -Wjump-misses-init -Wno-sign-compare -Wlogical-op -Waggregate-return -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Wpacked -Wredundant-decls -Wnested-externs -Winline -Wno-long-long -Wdisabled-optimization -Wno-overlength-strings' \
..
export NUMCPUS=`grep -c '^processor' /proc/cpuinfo`
make -j$NUMCPUS --load-average=$NUMCPUS
make test
JSIMD_FORCESSE2=1 make test
cmake -DFLOATTEST=no-fp-contract ..
JSIMD_FORCENONE=1 make test
popd
linux-msan:
runs-on: ubuntu-latest
steps:
- name: Check out code
uses: actions/checkout@v3
- name: Build
env:
CTEST_OUTPUT_ON_FAILURE: 1
run: |
mkdir build
pushd build
cmake -G"Unix Makefiles" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_C_COMPILER=clang -DCMAKE_C_FLAGS_RELWITHDEBINFO="-O3 -g -fsanitize=memory -fno-sanitize-recover=all -fPIE" -DWITH_SIMD=0 ..
export NUMCPUS=`grep -c '^processor' /proc/cpuinfo`
make -j$NUMCPUS --load-average=$NUMCPUS
make test
popd

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Building libjpeg-turbo
======================
Build Requirements
------------------
### All Systems
- [CMake](http://www.cmake.org) v2.8.12 or later
- [NASM](http://www.nasm.us) or [Yasm](http://yasm.tortall.net)
(if building x86 or x86-64 SIMD extensions)
* If using NASM, 2.13 or later is required.
* If using Yasm, 1.2.0 or later is required.
* If building on macOS, NASM or Yasm can be obtained from
[MacPorts](http://www.macports.org/) or [Homebrew](http://brew.sh/).
- NOTE: Currently, if it is desirable to hide the SIMD function symbols in
Mac executables or shared libraries that statically link with
libjpeg-turbo, then NASM 2.14 or later or Yasm must be used when
building libjpeg-turbo.
* If NASM or Yasm is not in your `PATH`, then you can specify the full path
to the assembler by using either the `CMAKE_ASM_NASM_COMPILER` CMake
variable or the `ASM_NASM` environment variable. On Windows, use forward
slashes rather than backslashes in the path (for example,
**c:/nasm/nasm.exe**).
* NASM and Yasm are located in the CRB (Code Ready Builder) or PowerTools
repository on Red Hat Enterprise Linux 8+ and derivatives, which is not
enabled by default.
### Un*x Platforms (including Linux, Mac, FreeBSD, Solaris, and Cygwin)
- GCC v4.1 (or later) or Clang recommended for best performance
- If building the TurboJPEG Java wrapper, JDK or OpenJDK 1.5 or later is
required. Most modern Linux distributions, as well as Solaris 10 and later,
include JDK or OpenJDK. For other systems, you can obtain the Oracle Java
Development Kit from
<http://www.oracle.com/technetwork/java/javase/downloads>.
* If using JDK 11 or later, CMake 3.10.x or later must also be used.
### Windows
- Microsoft Visual C++ 2005 or later
If you don't already have Visual C++, then the easiest way to get it is by
installing
[Visual Studio Community Edition](https://visualstudio.microsoft.com),
which includes everything necessary to build libjpeg-turbo.
* You can also download and install the standalone Windows SDK (for Windows 7
or later), which includes command-line versions of the 32-bit and 64-bit
Visual C++ compilers.
* 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`, which are located in the same
directory as the compiler.
* If built with Visual C++ 2015 or later, the libjpeg-turbo static libraries
cannot be used with earlier versions of Visual C++, and vice versa.
* The libjpeg API DLL (**jpeg{version}.dll**) will depend on the C run-time
DLLs corresponding to the version of Visual C++ that was used to build it.
... OR ...
- MinGW
[MSYS2](http://msys2.github.io/) or [tdm-gcc](http://tdm-gcc.tdragon.net/)
recommended if building on a Windows machine. Both distributions install a
Start Menu link that can be used to launch a command prompt with the
appropriate compiler paths automatically set.
- If building the TurboJPEG Java wrapper, JDK 1.5 or later is required. This
can be downloaded from
<http://www.oracle.com/technetwork/java/javase/downloads>.
* If using JDK 11 or later, CMake 3.10.x or later must also be used.
Sub-Project Builds
------------------
The libjpeg-turbo build system does not support being included as a sub-project
using the CMake `add_subdirectory()` function. Use the CMake
`ExternalProject_Add()` function instead.
Out-of-Tree Builds
------------------
Binary objects, libraries, and executables are generated in the directory from
which CMake is 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.
Ninja
-----
If using Ninja, then replace `make` or `nmake` with `ninja`, and replace the
CMake generator (specified with the `-G` option) with `Ninja`, in all of the
procedures and recipes below.
Build Procedure
---------------
NOTE: The build procedures below assume that CMake is invoked from the command
line, but all of these procedures can be adapted to the CMake GUI as
well.
### Un*x
The following procedure will build libjpeg-turbo on Unix and Unix-like systems.
(On Solaris, this generates a 32-bit build. See "Build Recipes" below for
64-bit build instructions.)
cd {build_directory}
cmake -G"Unix Makefiles" [additional CMake flags] {source_directory}
make
This will generate the following files under *{build_directory}*:
**libjpeg.a**<br>
Static link library for the libjpeg API
**libjpeg.so.{version}** (Linux, Unix)<br>
**libjpeg.{version}.dylib** (Mac)<br>
**cygjpeg-{version}.dll** (Cygwin)<br>
Shared library for the libjpeg API
By default, *{version}* is 62.2.0, 7.2.0, or 8.1.2, 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)<br>
**libjpeg.dylib** (Mac)<br>
Development symlink for the libjpeg API
**libjpeg.dll.a** (Cygwin)<br>
Import library for the libjpeg API
**libturbojpeg.a**<br>
Static link library for the TurboJPEG API
**libturbojpeg.so.0.2.0** (Linux, Unix)<br>
**libturbojpeg.0.2.0.dylib** (Mac)<br>
**cygturbojpeg-0.dll** (Cygwin)<br>
Shared library for the TurboJPEG API
**libturbojpeg.so** (Linux, Unix)<br>
**libturbojpeg.dylib** (Mac)<br>
Development symlink for the TurboJPEG API
**libturbojpeg.dll.a** (Cygwin)<br>
Import library for the TurboJPEG API
### Visual C++ (Command Line)
cd {build_directory}
cmake -G"NMake Makefiles" -DCMAKE_BUILD_TYPE=Release [additional CMake flags] {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**<br>
Static link library for the libjpeg API
**jpeg{version}.dll**<br>
DLL for the libjpeg API
**jpeg.lib**<br>
Import library for the libjpeg API
**turbojpeg-static.lib**<br>
Static link library for the TurboJPEG API
**turbojpeg.dll**<br>
DLL for the TurboJPEG API
**turbojpeg.lib**<br>
Import library for the TurboJPEG API
*{version}* is 62, 7, or 8, depending on whether libjpeg v6b (default), v7, or
v8 emulation is enabled.
### Visual C++ (IDE)
Choose the appropriate CMake generator option for your version of Visual Studio
(run `cmake` with no arguments for a list of available generators.) For
instance:
cd {build_directory}
cmake -G"Visual Studio 10" [additional CMake flags] {source_directory}
NOTE: Add "Win64" to the generator name (for example, "Visual Studio 10 Win64")
to build a 64-bit version of libjpeg-turbo. A separate build directory must be
used for 32-bit and 64-bit builds.
You can then open **ALL_BUILD.vcproj** in Visual Studio and build one of the
configurations in that project ("Debug", "Release", etc.) to generate a full
build of libjpeg-turbo.
This will generate the following files under *{build_directory}*:
**{configuration}/jpeg-static.lib**<br>
Static link library for the libjpeg API
**{configuration}/jpeg{version}.dll**<br>
DLL for the libjpeg API
**{configuration}/jpeg.lib**<br>
Import library for the libjpeg API
**{configuration}/turbojpeg-static.lib**<br>
Static link library for the TurboJPEG API
**{configuration}/turbojpeg.dll**<br>
DLL for the TurboJPEG API
**{configuration}/turbojpeg.lib**<br>
Import library for the TurboJPEG API
*{configuration}* is Debug, Release, RelWithDebInfo, or MinSizeRel, depending
on the configuration you built in the IDE, and *{version}* is 62, 7, or 8,
depending on whether libjpeg v6b (default), v7, or v8 emulation is enabled.
### MinGW
NOTE: This assumes that you are building on a Windows machine using the MSYS
environment. If you are cross-compiling on a Un*x platform (including Mac and
Cygwin), then see "Build Recipes" below.
cd {build_directory}
cmake -G"MSYS Makefiles" [additional CMake flags] {source_directory}
make
This will generate the following files under *{build_directory}*:
**libjpeg.a**<br>
Static link library for the libjpeg API
**libjpeg-{version}.dll**<br>
DLL for the libjpeg API
**libjpeg.dll.a**<br>
Import library for the libjpeg API
**libturbojpeg.a**<br>
Static link library for the TurboJPEG API
**libturbojpeg.dll**<br>
DLL for the TurboJPEG API
**libturbojpeg.dll.a**<br>
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 line to build a version of libjpeg-turbo that is
API/ABI-compatible with libjpeg v8. See [README.md](README.md) for more
information about 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.md](README.md) 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 (JNI) 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](java/README) for
more details.
If Java is not in your `PATH`, or if you wish to use an alternate JDK to
build/test libjpeg-turbo, then (prior to running CMake) set the `JAVA_HOME`
environment variable to the location of the JDK that you wish to use. The
`Java_JAVAC_EXECUTABLE`, `Java_JAVA_EXECUTABLE`, and `Java_JAR_EXECUTABLE`
CMake variables can also be used to specify alternate commands or locations for
javac, jar, and java (respectively.) You can also set the
`CMAKE_JAVA_COMPILE_FLAGS` CMake variable or the `JAVAFLAGS` environment
variable to specify arguments that should be passed to the Java compiler when
building the TurboJPEG classes, and the `JAVAARGS` CMake variable to specify
arguments that should be passed to the JRE when running the TurboJPEG Java unit
tests.
Build Recipes
-------------
### 32-bit Build on 64-bit Linux/Unix
Use export/setenv to set the following environment variables before running
CMake:
CFLAGS=-m32
LDFLAGS=-m32
### 64-bit Build on Solaris
Use export/setenv to set the following environment variables before running
CMake:
CFLAGS=-m64
LDFLAGS=-m64
### Other Compilers
On Un*x systems, prior to running CMake, you can set the `CC` environment
variable to the command used to invoke the C compiler.
### 32-bit MinGW Build on Un*x (including Mac and Cygwin)
Create a file called **toolchain.cmake** under *{build_directory}*, with the
following contents:
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR X86)
set(CMAKE_C_COMPILER {mingw_binary_path}/i686-w64-mingw32-gcc)
set(CMAKE_RC_COMPILER {mingw_binary_path}/i686-w64-mingw32-windres)
*{mingw\_binary\_path}* is the directory under which the MinGW binaries are
located (usually **/usr/bin**.) Next, execute the following commands:
cd {build_directory}
cmake -G"Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake \
-DCMAKE_INSTALL_PREFIX={install_path} \
[additional CMake flags] {source_directory}
make
*{install\_path}* is the path under which the libjpeg-turbo binaries should be
installed.
### 64-bit MinGW Build on Un*x (including Mac and Cygwin)
Create a file called **toolchain.cmake** under *{build_directory}*, with the
following contents:
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR AMD64)
set(CMAKE_C_COMPILER {mingw_binary_path}/x86_64-w64-mingw32-gcc)
set(CMAKE_RC_COMPILER {mingw_binary_path}/x86_64-w64-mingw32-windres)
*{mingw\_binary\_path}* is the directory under which the MinGW binaries are
located (usually **/usr/bin**.) Next, execute the following commands:
cd {build_directory}
cmake -G"Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake \
-DCMAKE_INSTALL_PREFIX={install_path} \
[additional CMake flags] {source_directory}
make
*{install\_path}* is the path under which the libjpeg-turbo binaries should be
installed.
Building libjpeg-turbo for iOS
------------------------------
iOS platforms, such as the iPhone and iPad, use Arm processors, and all
currently supported models include Neon instructions. Thus, they can take
advantage of libjpeg-turbo's SIMD extensions to significantly accelerate JPEG
compression/decompression. This section describes how to build libjpeg-turbo
for these platforms.
### Armv8 (64-bit)
**Xcode 5 or later required, Xcode 6.3.x or later recommended**
The following script demonstrates how to build libjpeg-turbo to run on the
iPhone 5S/iPad Mini 2/iPad Air and newer.
IOS_PLATFORMDIR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform
IOS_SYSROOT=($IOS_PLATFORMDIR/Developer/SDKs/iPhoneOS*.sdk)
export CFLAGS="-Wall -arch arm64 -miphoneos-version-min=8.0 -funwind-tables"
cd {build_directory}
cat <<EOF >toolchain.cmake
set(CMAKE_SYSTEM_NAME Darwin)
set(CMAKE_SYSTEM_PROCESSOR aarch64)
set(CMAKE_C_COMPILER /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang)
EOF
cmake -G"Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake \
-DCMAKE_OSX_SYSROOT=${IOS_SYSROOT[0]} \
[additional CMake flags] {source_directory}
make
Replace `iPhoneOS` with `iPhoneSimulator` and `-miphoneos-version-min` with
`-miphonesimulator-version-min` to build libjpeg-turbo for the iOS simulator on
Macs with Apple silicon CPUs.
Building libjpeg-turbo for Android
----------------------------------
Building libjpeg-turbo for Android platforms requires v13b or later of the
[Android NDK](https://developer.android.com/tools/sdk/ndk).
### Armv7 (32-bit)
**NDK r19 or later with Clang recommended**
The following is a general recipe script that can be modified for your specific
needs.
# Set these variables to suit your needs
NDK_PATH={full path to the NDK directory-- for example,
/opt/android/android-ndk-r16b}
TOOLCHAIN={"gcc" or "clang"-- "gcc" must be used with NDK r16b and earlier,
and "clang" must be used with NDK r17c and later}
ANDROID_VERSION={the minimum version of Android to support-- for example,
"16", "19", etc.}
cd {build_directory}
cmake -G"Unix Makefiles" \
-DANDROID_ABI=armeabi-v7a \
-DANDROID_ARM_MODE=arm \
-DANDROID_PLATFORM=android-${ANDROID_VERSION} \
-DANDROID_TOOLCHAIN=${TOOLCHAIN} \
-DCMAKE_ASM_FLAGS="--target=arm-linux-androideabi${ANDROID_VERSION}" \
-DCMAKE_TOOLCHAIN_FILE=${NDK_PATH}/build/cmake/android.toolchain.cmake \
[additional CMake flags] {source_directory}
make
### Armv8 (64-bit)
**Clang recommended**
The following is a general recipe script that can be modified for your specific
needs.
# Set these variables to suit your needs
NDK_PATH={full path to the NDK directory-- for example,
/opt/android/android-ndk-r16b}
TOOLCHAIN={"gcc" or "clang"-- "gcc" must be used with NDK r14b and earlier,
and "clang" must be used with NDK r17c and later}
ANDROID_VERSION={the minimum version of Android to support. "21" or later
is required for a 64-bit build.}
cd {build_directory}
cmake -G"Unix Makefiles" \
-DANDROID_ABI=arm64-v8a \
-DANDROID_ARM_MODE=arm \
-DANDROID_PLATFORM=android-${ANDROID_VERSION} \
-DANDROID_TOOLCHAIN=${TOOLCHAIN} \
-DCMAKE_ASM_FLAGS="--target=aarch64-linux-android${ANDROID_VERSION}" \
-DCMAKE_TOOLCHAIN_FILE=${NDK_PATH}/build/cmake/android.toolchain.cmake \
[additional CMake flags] {source_directory}
make
### x86 (32-bit)
The following is a general recipe script that can be modified for your specific
needs.
# Set these variables to suit your needs
NDK_PATH={full path to the NDK directory-- for example,
/opt/android/android-ndk-r16b}
TOOLCHAIN={"gcc" or "clang"-- "gcc" must be used with NDK r14b and earlier,
and "clang" must be used with NDK r17c and later}
ANDROID_VERSION={The minimum version of Android to support-- for example,
"16", "19", etc.}
cd {build_directory}
cmake -G"Unix Makefiles" \
-DANDROID_ABI=x86 \
-DANDROID_PLATFORM=android-${ANDROID_VERSION} \
-DANDROID_TOOLCHAIN=${TOOLCHAIN} \
-DCMAKE_TOOLCHAIN_FILE=${NDK_PATH}/build/cmake/android.toolchain.cmake \
[additional CMake flags] {source_directory}
make
### x86-64 (64-bit)
The following is a general recipe script that can be modified for your specific
needs.
# Set these variables to suit your needs
NDK_PATH={full path to the NDK directory-- for example,
/opt/android/android-ndk-r16b}
TOOLCHAIN={"gcc" or "clang"-- "gcc" must be used with NDK r14b and earlier,
and "clang" must be used with NDK r17c and later}
ANDROID_VERSION={the minimum version of Android to support. "21" or later
is required for a 64-bit build.}
cd {build_directory}
cmake -G"Unix Makefiles" \
-DANDROID_ABI=x86_64 \
-DANDROID_PLATFORM=android-${ANDROID_VERSION} \
-DANDROID_TOOLCHAIN=${TOOLCHAIN} \
-DCMAKE_TOOLCHAIN_FILE=${NDK_PATH}/build/cmake/android.toolchain.cmake \
[additional CMake flags] {source_directory}
make
Advanced CMake Options
----------------------
To list and configure other CMake options not specifically mentioned in this
guide, run
ccmake {source_directory}
or
cmake-gui {source_directory}
from the build directory after initially configuring the build. CCMake is a
text-based interactive version of CMake, and CMake-GUI is a GUI version. Both
will display all variables that are relevant to the libjpeg-turbo build, their
current values, and a help string describing what they do.
Installing libjpeg-turbo
========================
You can use the build system to install libjpeg-turbo (as opposed to creating
an installer package.) To do this, run `make install` or `nmake install`
(or build the "install" target in the Visual Studio IDE.) Running
`make uninstall` or `nmake uninstall` (or building the "uninstall" target in
the Visual Studio IDE) will uninstall libjpeg-turbo.
The `CMAKE_INSTALL_PREFIX` CMake variable can be modified in order to install
libjpeg-turbo into a directory of your choosing. If you don't specify
`CMAKE_INSTALL_PREFIX`, then the default is:
**c:\libjpeg-turbo**<br>
Visual Studio 32-bit build
**c:\libjpeg-turbo64**<br>
Visual Studio 64-bit build
**c:\libjpeg-turbo-gcc**<br>
MinGW 32-bit build
**c:\libjpeg-turbo-gcc64**<br>
MinGW 64-bit build
**/opt/libjpeg-turbo**<br>
Un*x
The default value of `CMAKE_INSTALL_PREFIX` causes the libjpeg-turbo files to
be installed with a directory structure resembling that of the official
libjpeg-turbo binary packages. Changing the value of `CMAKE_INSTALL_PREFIX`
(for instance, to **/usr/local**) causes the libjpeg-turbo files to be
installed with a directory structure that conforms to GNU standards.
The `CMAKE_INSTALL_BINDIR`, `CMAKE_INSTALL_DATAROOTDIR`,
`CMAKE_INSTALL_DOCDIR`, `CMAKE_INSTALL_INCLUDEDIR`, `CMAKE_INSTALL_JAVADIR`,
`CMAKE_INSTALL_LIBDIR`, and `CMAKE_INSTALL_MANDIR` CMake variables allow a
finer degree of control over where specific files in the libjpeg-turbo
distribution should be installed. These directory variables can either be
specified as absolute paths or as paths relative to `CMAKE_INSTALL_PREFIX` (for
instance, setting `CMAKE_INSTALL_DOCDIR` to **doc** would cause the
documentation to be installed in **${CMAKE\_INSTALL\_PREFIX}/doc**.) If a
directory variable contains the name of another directory variable in angle
brackets, then its final value will depend on the final value of that other
variable. For instance, the default value of `CMAKE_INSTALL_MANDIR` is
**\<CMAKE\_INSTALL\_DATAROOTDIR\>/man**.
NOTE: If setting one of these directory variables to a relative path using the
CMake command line, you must specify that the variable is of type `PATH`.
For example:
cmake -G"{generator type}" -DCMAKE_INSTALL_LIBDIR:PATH=lib {source_directory}
Otherwise, CMake will assume that the path is relative to the build directory
rather than the install directory.
Creating Distribution Packages
==============================
The following commands can be used to create various types of distribution
packages:
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.
Mac
---
make dmg
Create Mac package/disk image. This requires pkgbuild and productbuild, which
are installed by default on OS X/macOS 10.7 and later.
In order to create a Mac package/disk image that contains universal
x86-64/Arm binaries, set the following CMake variable:
* `ARMV8_BUILD`: Directory containing an Armv8 (64-bit) iOS or macOS build of
libjpeg-turbo to include in the universal binaries
You should first use CMake to configure an Armv8 sub-build of libjpeg-turbo
(see "Building libjpeg-turbo for iOS" above, if applicable) in a build
directory that matches the one specified in the aforementioned CMake variable.
Next, configure the primary (x86-64) build of libjpeg-turbo as an out-of-tree
build, specifying the aforementioned CMake variable, and build it. Once the
primary build has been built, run `make dmg` from the build directory. The
packaging system will build the sub-build, use lipo to combine it with the
primary build into a single set of universal binaries, then package the
universal binaries.
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" target.
The installer package (libjpeg-turbo-*{version}*[-gcc|-vc][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` (Un*x) or
`nmake test` (Windows command line) or by building the "RUN_TESTS" target
(Visual Studio IDE), 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` (Un*x) or `nmake testclean` (Windows command line) or
building the "testclean" target (Visual Studio IDE) will clean up the output
images generated by the tests.
On Un*x 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 (including 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.

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libjpeg-turbo Licenses
======================
libjpeg-turbo is covered by three compatible BSD-style open source licenses:
- The IJG (Independent JPEG Group) License, which is listed in
[README.ijg](README.ijg)
This license applies to the libjpeg API library and associated programs
(any code inherited from libjpeg, and any modifications to that code.)
- The Modified (3-clause) BSD License, which is listed below
This license covers the TurboJPEG API library and associated programs, as
well as the build system.
- The [zlib License](https://opensource.org/licenses/Zlib)
This license is a subset of the other two, and it covers the libjpeg-turbo
SIMD extensions.
Complying with the libjpeg-turbo Licenses
=========================================
This section provides a roll-up of the libjpeg-turbo licensing terms, to the
best of our understanding.
1. If you are distributing a modified version of the libjpeg-turbo source,
then:
1. You cannot alter or remove any existing copyright or license notices
from the source.
**Origin**
- Clause 1 of the IJG License
- Clause 1 of the Modified BSD License
- Clauses 1 and 3 of the zlib License
2. You must add your own copyright notice to the header of each source
file you modified, so others can tell that you modified that file (if
there is not an existing copyright header in that file, then you can
simply add a notice stating that you modified the file.)
**Origin**
- Clause 1 of the IJG License
- Clause 2 of the zlib License
3. You must include the IJG README file, and you must not alter any of the
copyright or license text in that file.
**Origin**
- Clause 1 of the IJG License
2. If you are distributing only libjpeg-turbo binaries without the source, or
if you are distributing an application that statically links with
libjpeg-turbo, then:
1. Your product documentation must include a message stating:
This software is based in part on the work of the Independent JPEG
Group.
**Origin**
- Clause 2 of the IJG license
2. If your binary distribution includes or uses the TurboJPEG API, then
your product documentation must include the text of the Modified BSD
License (see below.)
**Origin**
- Clause 2 of the Modified BSD License
3. You cannot use the name of the IJG or The libjpeg-turbo Project or the
contributors thereof in advertising, publicity, etc.
**Origin**
- IJG License
- Clause 3 of the Modified BSD License
4. The IJG and The libjpeg-turbo Project do not warrant libjpeg-turbo to be
free of defects, nor do we accept any liability for undesirable
consequences resulting from your use of the software.
**Origin**
- IJG License
- Modified BSD License
- zlib License
The Modified (3-clause) BSD License
===================================
Copyright (C)2009-2023 D. R. Commander. All Rights Reserved.<br>
Copyright (C)2015 Viktor Szathmáry. 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.
Why Three Licenses?
===================
The zlib License could have been used instead of the Modified (3-clause) BSD
License, and since the IJG License effectively subsumes the distribution
conditions of the zlib License, this would have effectively placed
libjpeg-turbo binary distributions under the IJG License. However, the IJG
License specifically refers to the Independent JPEG Group and does not extend
attribution and endorsement protections to other entities. Thus, it was
desirable to choose a license that granted us the same protections for new code
that were granted to the IJG for code derived from their software.

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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.md 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:
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.txt 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 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 grayscale 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) 1991-2020, 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.
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 PDF file containing a revised version of Wallace's article is
available at http://www.ijg.org/files/Wallace.JPEG.pdf. 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 version 1 has been adopted as ISO/IEC 10918-5 (05/2013) and
Recommendation ITU-T T.871 (05/2011): Information technology - Digital
compression and coding of continuous-tone still images: JPEG File Interchange
Format (JFIF). It is available as a free download in PDF file format from
https://www.iso.org/standard/54989.html and http://www.itu.int/rec/T-REC-T.871.
A PDF file of the older JFIF 1.02 specification is available at
http://www.w3.org/Graphics/JPEG/jfif3.pdf.
The TIFF 6.0 file format specification can be obtained from
http://mirrors.ctan.org/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".
The JPEG FAQ (Frequently Asked Questions) article is a source of some
general information about JPEG. It is available at
http://www.faqs.org/faqs/jpeg-faq.
FILE FORMAT COMPATIBILITY
=========================
This software implements ITU T.81 | ISO/IEC 10918 with some extensions from
ITU T.871 | ISO/IEC 10918-5 (JPEG File Interchange Format-- see REFERENCES).
Informally, the term "JPEG image" or "JPEG file" most often refers to JFIF or
a subset thereof, but there are other formats containing the name "JPEG" that
are incompatible with the DCT-based JPEG standard or with JFIF (for instance,
JPEG 2000 and JPEG XR). This software therefore does not support these
formats. Indeed, one of the original reasons for developing this free software
was to help force convergence on a common, interoperable format standard for
JPEG files.
JFIF is a minimal or "low end" representation. TIFF/JPEG (TIFF revision 6.0 as
modified by TIFF Technical Note #2) can be used for "high end" applications
that need to record a lot of additional data about an image.
TO DO
=====
Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org.

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Background
==========
libjpeg-turbo is a JPEG image codec that uses SIMD instructions to accelerate
baseline JPEG compression and decompression on x86, x86-64, Arm, PowerPC, and
MIPS systems, as well as progressive JPEG compression on x86, x86-64, and Arm
systems. On such systems, libjpeg-turbo is generally 2-6x 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
=======
libjpeg-turbo is covered by three compatible BSD-style open source licenses.
Refer to [LICENSE.md](LICENSE.md) for a roll-up of license terms.
Building libjpeg-turbo
======================
Refer to [BUILDING.md](BUILDING.md) for complete instructions.
Using libjpeg-turbo
===================
libjpeg-turbo includes two APIs that can be used to compress and decompress
JPEG images:
- **TurboJPEG API**<br>
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. The TurboJPEG API is recommended for first-time
users of libjpeg-turbo. Refer to [tjexample.c](tjexample.c) and
[TJExample.java](java/TJExample.java) for examples of its usage and to
<http://libjpeg-turbo.org/Documentation/Documentation> for API documentation.
- **libjpeg API**<br>
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.) Refer to [cjpeg.c](cjpeg.c) and [djpeg.c](djpeg.c) for examples
of its usage and to [libjpeg.txt](libjpeg.txt) for API documentation.
There is no significant performance advantage to either API when both are used
to perform similar operations.
Colorspace Extensions
---------------------
libjpeg-turbo includes extensions that allow JPEG images to be compressed
directly from (and decompressed directly to) buffers that use BGR, BGRX,
RGBX, XBGR, and XRGB pixel ordering. This is implemented with ten new
colorspace constants:
JCS_EXT_RGB /* red/green/blue */
JCS_EXT_RGBX /* red/green/blue/x */
JCS_EXT_BGR /* blue/green/red */
JCS_EXT_BGRX /* blue/green/red/x */
JCS_EXT_XBGR /* x/blue/green/red */
JCS_EXT_XRGB /* x/red/green/blue */
JCS_EXT_RGBA /* red/green/blue/alpha */
JCS_EXT_BGRA /* blue/green/red/alpha */
JCS_EXT_ABGR /* alpha/blue/green/red */
JCS_EXT_ARGB /* alpha/red/green/blue */
Setting `cinfo.in_color_space` (compression) or `cinfo.out_color_space`
(decompression) to one of these values will cause libjpeg-turbo to read the
red, green, and blue values from (or write them to) the appropriate position in
the pixel when compressing from/decompressing to an RGB buffer.
Your application can check for the existence of these extensions at compile
time with:
#ifdef JCS_EXTENSIONS
At run time, attempting to use these extensions with a libjpeg implementation
that does not support them will result in a "Bogus input colorspace" error.
Applications can trap this error in order to test whether run-time support is
available for the colorspace extensions.
When using the RGBX, BGRX, XBGR, and XRGB colorspaces during decompression, the
X byte is undefined, and in order to ensure the best performance, libjpeg-turbo
can set that byte to whatever value it wishes. If an application expects the X
byte to be used as an alpha channel, then it should specify `JCS_EXT_RGBA`,
`JCS_EXT_BGRA`, `JCS_EXT_ABGR`, or `JCS_EXT_ARGB`. When these colorspace
constants are used, the X byte is guaranteed to be 0xFF, which is interpreted
as opaque.
Your application can check for the existence of the alpha channel colorspace
extensions at compile time with:
#ifdef JCS_ALPHA_EXTENSIONS
[jcstest.c](jcstest.c), located in the libjpeg-turbo source tree, demonstrates
how to check for the existence of the colorspace extensions at compile time and
run time.
libjpeg v7 and v8 API/ABI Emulation
-----------------------------------
With libjpeg v7 and v8, new features were added that necessitated extending the
compression and decompression structures. Unfortunately, due to the exposed
nature of those structures, extending them also necessitated breaking backward
ABI compatibility with previous libjpeg releases. Thus, programs that were
built to use libjpeg v7 or v8 did not work with libjpeg-turbo, since it is
based on the libjpeg v6b code base. Although libjpeg v7 and v8 are not
as widely used as v6b, enough programs (including a few Linux distros) made
the switch that there was a demand to emulate the libjpeg v7 and v8 ABIs
in libjpeg-turbo. It should be noted, however, that this feature was added
primarily so that applications that had already been compiled to use libjpeg
v7+ could take advantage of accelerated baseline JPEG encoding/decoding
without recompiling. libjpeg-turbo does not claim to support all of the
libjpeg v7+ features, nor to produce identical output to libjpeg v7+ in all
cases (see below.)
By passing an argument of `-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 API: IDCT scaling extensions in decompressor**<br>
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 API: Arithmetic coding**
- **libjpeg API: In-memory source and destination managers**<br>
See notes below.
- **cjpeg: Separate quality settings for luminance and chrominance**<br>
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. Readers are invited to peruse the research at
<http://www.libjpeg-turbo.org/About/SmartScale> and draw their 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 API: DCT scaling in compressor**<br>
`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 API: SmartScale**<br>
`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 API: Fancy downsampling in compressor**<br>
`cinfo.do_fancy_downsampling` is silently ignored.
This requires the DCT scaling feature, which is not supported.
- **jpegtran: Scaling**<br>
This requires both the DCT scaling and SmartScale features, which are not
supported.
- **Lossless RGB JPEG files**<br>
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. Furthermore, 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. Therefore, at this time it is our belief
that there is not sufficient technical justification for software projects to
upgrade from libjpeg v8 to libjpeg v9, and thus there is 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 `-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 62.2.0 to 62.3.0 if using libjpeg v6b API/ABI
emulation and from 7.2.0 to 7.3.0 if using libjpeg v7 API/ABI emulation.
Note that, on most Un*x systems, the dynamic linker will not look for a
function in a library until that function is actually used. Thus, if a program
is built against libjpeg-turbo 1.3+ and uses `jpeg_mem_src()` or
`jpeg_mem_dest()`, that program will not fail if run against an older version
of libjpeg-turbo or against libjpeg v7- until the program actually tries to
call `jpeg_mem_src()` or `jpeg_mem_dest()`. Such is not the case on Windows.
If a program is built against the libjpeg-turbo 1.3+ DLL and uses
`jpeg_mem_src()` or `jpeg_mem_dest()`, then it must use the libjpeg-turbo 1.3+
DLL at run time.
Both cjpeg and djpeg have been extended to allow testing the in-memory
source/destination manager functions. See their respective man pages for more
details.
Mathematical Compatibility
==========================
For the most part, libjpeg-turbo should produce identical output to libjpeg
v6b. The one exception to this is when using the floating point DCT/IDCT, in
which case the outputs of libjpeg v6b and libjpeg-turbo can differ for the
following reasons:
- The SSE/SSE2 floating point DCT implementation in libjpeg-turbo is ever so
slightly more accurate than the implementation in libjpeg v6b, but not by
any amount perceptible to human vision (generally in the range of 0.01 to
0.08 dB gain in PNSR.)
- When not using the SIMD extensions, libjpeg-turbo uses the more accurate
(and slightly faster) floating point IDCT algorithm introduced in libjpeg
v8a as opposed to the algorithm used in libjpeg v6b. It should be noted,
however, that this algorithm basically brings the accuracy of the floating
point IDCT in line with the accuracy of the accurate integer IDCT. The
floating point DCT/IDCT algorithms are mainly a legacy feature, and they do
not produce significantly more accuracy than the accurate integer algorithms
(to put numbers on this, the typical difference in PNSR between the two
algorithms is less than 0.10 dB, whereas changing the quality level by 1 in
the upper range of the quality scale is typically more like a 1.0 dB
difference.)
- If the floating point algorithms in libjpeg-turbo are not implemented using
SIMD instructions on a particular platform, then the accuracy of the
floating point DCT/IDCT can depend on the compiler settings.
While libjpeg-turbo does emulate the libjpeg v8 API/ABI, under the hood it is
still using the same algorithms as libjpeg v6b, so there are several specific
cases in which libjpeg-turbo cannot be expected to produce the same output as
libjpeg v8:
- When decompressing using scaling factors of 1/2 and 1/4, because libjpeg v8
implements those scaling algorithms differently than libjpeg v6b does, and
libjpeg-turbo's SIMD extensions are based on the libjpeg v6b behavior.
- When using chrominance subsampling, because libjpeg v8 implements this
with its DCT/IDCT scaling algorithms rather than with a separate
downsampling/upsampling algorithm. In our testing, the subsampled/upsampled
output of libjpeg v8 is less accurate than that of libjpeg v6b for this
reason.
- When decompressing using a scaling factor > 1 and merged (AKA "non-fancy" or
"non-smooth") chrominance upsampling, because libjpeg v8 does not support
merged upsampling with scaling factors > 1.
Performance Pitfalls
====================
Restart Markers
---------------
The optimized Huffman decoder in libjpeg-turbo does not handle restart markers
in a way that makes the rest of the libjpeg infrastructure happy, so it is
necessary to use the slow Huffman decoder when decompressing a JPEG image that
has restart markers. This can cause the decompression performance to drop by
as much as 20%, but the performance will still be much greater than that of
libjpeg. Many consumer packages, such as Photoshop, use restart markers when
generating JPEG images, so images generated by those programs will experience
this issue.
Fast Integer Forward DCT at High Quality Levels
-----------------------------------------------
The algorithm used by the SIMD-accelerated quantization function cannot produce
correct results whenever the fast integer forward DCT is used along with a JPEG
quality of 98-100. Thus, libjpeg-turbo must use the non-SIMD quantization
function in those cases. This causes performance to drop by as much as 40%.
It is therefore strongly advised that you use the accurate integer forward DCT
whenever encoding images with a JPEG quality of 98 or higher.
Memory Debugger Pitfalls
========================
Valgrind and Memory Sanitizer (MSan) can generate false positives
(specifically, incorrect reports of uninitialized memory accesses) when used
with libjpeg-turbo's SIMD extensions. It is generally recommended that the
SIMD extensions be disabled, either by passing an argument of `-DWITH_SIMD=0`
to `cmake` when configuring the build or by setting the environment variable
`JSIMD_FORCENONE` to `1` at run time, when testing libjpeg-turbo with Valgrind,
MSan, or other memory debuggers.

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install:
- cmd: >-
if not exist c:\installers mkdir c:\installers
mkdir c:\temp
if not exist c:\installers\nasm-2.10.01-win32.zip curl -fSL -o c:\installers\nasm-2.10.01-win32.zip http://www.nasm.us/pub/nasm/releasebuilds/2.10.01/win32/nasm-2.10.01-win32.zip
7z x c:\installers\nasm-2.10.01-win32.zip -oc:\ > c:\installers\nasm.install.log
if not exist c:\installers\i686-6.4.0-release-posix-dwarf-rt_v5-rev0.7z curl -fSL -o c:\installers\i686-6.4.0-release-posix-dwarf-rt_v5-rev0.7z "https://sourceforge.net/projects/mingw-w64/files/Toolchains targetting Win32/Personal Builds/mingw-builds/6.4.0/threads-posix/dwarf/i686-6.4.0-release-posix-dwarf-rt_v5-rev0.7z"
md "c:\Program Files (x86)\mingw-w64\i686-6.4.0-posix-dwarf-rt_v5-rev0"
7z x c:\installers\i686-6.4.0-release-posix-dwarf-rt_v5-rev0.7z -o"c:\Program Files (x86)\mingw-w64\i686-6.4.0-posix-dwarf-rt_v5-rev0" > c:\installers\mingw32.install.log
if not exist c:\installers\x86_64-6.4.0-release-posix-seh-rt_v5-rev0.7z curl -fSL -o c:\installers\x86_64-6.4.0-release-posix-seh-rt_v5-rev0.7z "https://sourceforge.net/projects/mingw-w64/files/Toolchains targetting Win64/Personal Builds/mingw-builds/6.4.0/threads-posix/seh/x86_64-6.4.0-release-posix-seh-rt_v5-rev0.7z"
md "c:\Program Files\mingw-w64\x86_64-6.4.0-posix-seh-rt_v5-rev0"
7z x c:\installers\x86_64-6.4.0-release-posix-seh-rt_v5-rev0.7z -o"c:\Program Files\mingw-w64\x86_64-6.4.0-posix-seh-rt_v5-rev0" > c:\installers\mingw64.install.log
set PATH=c:\nasm-2.10.01;c:\Program Files (x86)\NSIS;c:\msys64\usr\bin;%PATH%
"c:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64\vcvars64.bat"
set INCLUDE
set LIB
set PATH
set MSYSTEM=MINGW32
mklink /d "%ProgramData%\Oracle\Java32" "c:\Program Files (x86)\Java\jdk1.6.0"
git clone --depth=1 https://github.com/libjpeg-turbo/buildscripts.git -b %APPVEYOR_REPO_BRANCH% c:/buildscripts
cache:
- c:\installers\nasm-2.10.01-win32.zip -> appveyor.yml
- c:\installers\i686-6.4.0-release-posix-dwarf-rt_v5-rev0.7z -> appveyor.yml
- c:\installers\x86_64-6.4.0-release-posix-seh-rt_v5-rev0.7z -> appveyor.yml
build_script:
- cmd: >-
for /f %%i in ('"cygpath %CD%"') do set MINGWPATH=%%i
bash c:/buildscripts/buildljt -d %MINGWPATH% -b /c/ljt.nightly -v
cmake --build . --target clean
md win64
cd win64
bash c:/buildscripts/setupscripts/win64 -DCMAKE_C_FLAGS='-DWIN32 -D_WINDOWS -W4 -wd4100 -wd4127 -wd4245 -wd4324 -wd4701 -wd4702 -wd4706 -WX'
cd ..
ninja
move c:\ljt.nightly\files\*.tar.gz .
move c:\ljt.nightly\files\*.exe .
move c:\ljt.nightly\files\*.html .
move c:\ljt.nightly\log-windows.txt .
artifacts:
- path: '*.tar.gz'
name: Source tarball
- path: '*-gcc*.exe'
name: SDK for MinGW
- path: '*-vc*.exe'
name: SDK for Visual C++
- path: 'log-windows.txt'
name: Build log
- path: 'index.html'
name: MD5 checksums
test: off
deploy:
provider: S3
access_key_id:
secure: Z74OYogQ6bNV/I+6b5ZEXig74+6MW2WLER0v/bPM/uk=
secret_access_key:
secure: cyGZhHVCFwZ9jgf5lXoW69mVtECmqwx3eLo61ha8ueWbMYlHho7lwDXwVvxOFiCa
bucket: libjpeg-turbo-pr
region:
secure: qSElYBgBRcEUf88M6Osthw==
folder: $(APPVEYOR_REPO_BRANCH)/windows
set_public: true
remove_files: true

123
android/extern/libjpeg-turbo/cderror.h vendored
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/*
* cderror.h
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1997, Thomas G. Lane.
* Modified 2009-2017 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2021, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* 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-, 24-, and 32-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(JERR_BMP_OUTOFRANGE, "Numeric value out of range in BMP file")
JMESSAGE(JTRC_BMP, "%ux%u %d-bit BMP image")
JMESSAGE(JTRC_BMP_MAPPED, "%ux%u 8-bit colormapped BMP image")
JMESSAGE(JTRC_BMP_OS2, "%ux%u %d-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_EMPTY, "Empty GIF image")
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(JERR_PPM_OUTOFRANGE, "Numeric value out of range in PPM 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 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

156
android/extern/libjpeg-turbo/cdjpeg.c vendored
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/*
* cdjpeg.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2019, 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains common support routines used by the IJG application
* programs (cjpeg, djpeg, jpegtran).
*/
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
#include <ctype.h> /* to declare isupper(), tolower() */
#ifdef USE_SETMODE
#include <fcntl.h> /* to declare setmode()'s parameter macros */
/* If you have setmode() but not <io.h>, just delete this line: */
#include <io.h> /* to declare setmode() */
#endif
/*
* Optional progress monitor: display a percent-done figure on stderr.
*/
METHODDEF(void)
progress_monitor(j_common_ptr cinfo)
{
cd_progress_ptr prog = (cd_progress_ptr)cinfo->progress;
if (prog->max_scans != 0 && cinfo->is_decompressor) {
int scan_no = ((j_decompress_ptr)cinfo)->input_scan_number;
if (scan_no > (int)prog->max_scans) {
fprintf(stderr, "Scan number %d exceeds maximum scans (%u)\n", scan_no,
prog->max_scans);
exit(EXIT_FAILURE);
}
}
if (prog->report) {
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->max_scans = 0;
progress->report = FALSE;
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);
}
}
/*
* 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;
}

161
android/extern/libjpeg-turbo/cdjpeg.h vendored
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/*
* cdjpeg.h
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1997, Thomas G. Lane.
* Modified 2019 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2017, 2019, 2021, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* 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 {
void (*start_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
JDIMENSION (*get_pixel_rows) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
void (*finish_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
FILE *input_file;
JSAMPARRAY buffer;
JDIMENSION buffer_height;
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
JDIMENSION max_pixels;
#endif
};
/*
* 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.
*/
void (*start_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
/* Emit the specified number of pixel rows from the buffer. */
void (*put_pixel_rows) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
JDIMENSION rows_supplied);
/* Finish up at the end of the image. */
void (*finish_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
/* Re-calculate buffer dimensions based on output dimensions (for use with
partial image decompression.) If this is NULL, then the output format
does not support partial image decompression (BMP, in particular, cannot
support partial decompression because it uses an inversion buffer to write
the image in bottom-up order.) */
void (*calc_buffer_dimensions) (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 */
JDIMENSION max_scans; /* abort if the number of scans exceeds this
value and the value is non-zero */
boolean report; /* whether or not to report progress */
/* last printed percentage stored here to avoid multiple printouts */
int percent_done;
};
typedef struct cdjpeg_progress_mgr *cd_progress_ptr;
/* Module selection routines for I/O modules. */
EXTERN(cjpeg_source_ptr) jinit_read_bmp(j_compress_ptr cinfo,
boolean use_inversion_array);
EXTERN(djpeg_dest_ptr) jinit_write_bmp(j_decompress_ptr cinfo, boolean is_os2,
boolean use_inversion_array);
EXTERN(cjpeg_source_ptr) jinit_read_gif(j_compress_ptr cinfo);
EXTERN(djpeg_dest_ptr) jinit_write_gif(j_decompress_ptr cinfo, boolean is_lzw);
EXTERN(cjpeg_source_ptr) jinit_read_ppm(j_compress_ptr cinfo);
EXTERN(djpeg_dest_ptr) jinit_write_ppm(j_decompress_ptr cinfo);
EXTERN(cjpeg_source_ptr) jinit_read_targa(j_compress_ptr cinfo);
EXTERN(djpeg_dest_ptr) jinit_write_targa(j_decompress_ptr cinfo);
/* cjpeg support routines (in rdswitch.c) */
EXTERN(boolean) read_quant_tables(j_compress_ptr cinfo, char *filename,
boolean force_baseline);
EXTERN(boolean) read_scan_script(j_compress_ptr cinfo, char *filename);
EXTERN(boolean) set_quality_ratings(j_compress_ptr cinfo, char *arg,
boolean force_baseline);
EXTERN(boolean) set_quant_slots(j_compress_ptr cinfo, char *arg);
EXTERN(boolean) set_sample_factors(j_compress_ptr cinfo, char *arg);
/* djpeg support routines (in rdcolmap.c) */
EXTERN(void) read_color_map(j_decompress_ptr cinfo, FILE *infile);
/* common support routines (in cdjpeg.c) */
EXTERN(void) start_progress_monitor(j_common_ptr cinfo,
cd_progress_ptr progress);
EXTERN(void) end_progress_monitor(j_common_ptr cinfo);
EXTERN(boolean) keymatch(char *arg, const char *keyword, int minchars);
EXTERN(FILE *) read_stdin(void);
EXTERN(FILE *) write_stdout(void);
/* miscellaneous useful macros */
#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */
#define READ_BINARY "r"
#define WRITE_BINARY "w"
#else
#define READ_BINARY "rb"
#define WRITE_BINARY "wb"
#endif
#ifndef EXIT_FAILURE /* define exit() codes if not provided */
#define EXIT_FAILURE 1
#endif
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#ifndef EXIT_WARNING
#define EXIT_WARNING 2
#endif
#define IsExtRGB(cs) \
(cs == JCS_RGB || (cs >= JCS_EXT_RGB && cs <= JCS_EXT_ARGB))

361
android/extern/libjpeg-turbo/cjpeg.1 vendored
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.TH CJPEG 1 "30 November 2021"
.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 grayscale format), BMP, GIF, and Targa.
.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. 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 generally be between 50 and 95 (the default
is 75) for photographic images. 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.) For most images, specifying a quality value above
about 95 will increase the size of the compressed file dramatically, and while
the quality gain from these higher quality values is measurable (using metrics
such as PSNR or SSIM), it is rarely perceivable by human vision.
.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 accurate integer DCT method (default).
.TP
.B \-dct fast
Use less accurate integer DCT method [legacy feature].
When the Independent JPEG Group's software was first released in 1991, the
compression time for a 1-megapixel JPEG image on a mainstream PC was measured
in minutes. Thus, the \fBfast\fR integer DCT algorithm provided noticeable
performance benefits. On modern CPUs running libjpeg-turbo, however, the
compression time for a 1-megapixel JPEG image is measured in milliseconds, and
thus the performance benefits of the \fBfast\fR algorithm are much less
noticeable. On modern x86/x86-64 CPUs that support AVX2 instructions, the
\fBfast\fR and \fBint\fR methods have similar performance. On other types of
CPUs, the \fBfast\fR method is generally about 5-15% faster than the \fBint\fR
method.
For quality levels of 90 and below, there should be little or no perceptible
quality difference between the two algorithms. For quality levels above 90,
however, the difference between the \fBfast\fR and \fBint\fR methods becomes
more pronounced. With quality=97, for instance, the \fBfast\fR method incurs
generally about a 1-3 dB loss in PSNR relative to the \fBint\fR method, but
this can be larger for some images. Do not use the \fBfast\fR method with
quality levels above 97. The algorithm often degenerates at quality=98 and
above and can actually produce a more lossy image than if lower quality levels
had been used. Also, in libjpeg-turbo, the \fBfast\fR method is not fully
accelerated for quality levels above 97, so it will be slower than the
\fBint\fR method.
.TP
.B \-dct float
Use floating-point DCT method [legacy feature].
The \fBfloat\fR method does not produce significantly more accurate results
than the \fBint\fR method, and it is much slower. The \fBfloat\fR method may
also give different results on different machines due to varying roundoff
behavior, whereas the integer methods should give the same results on all
machines.
.TP
.BI \-icc " file"
Embed ICC color management profile contained in the specified file.
.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, an error will occur.
.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
.BI \-report
Report compression progress.
.TP
.BI \-strict
Treat all warnings as fatal. Enabling this option will cause the compressor to
abort if an LZW-compressed GIF input image contains incomplete or corrupt image
data.
.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 .
.TP
.B \-version
Print version information and exit.
.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 ISSUES
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.)

762
android/extern/libjpeg-turbo/cjpeg.c vendored
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@@ -1,762 +0,0 @@
/*
* 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, 2013-2014, 2017, 2019-2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* 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.
*/
#ifdef _MSC_VER
#define _CRT_SECURE_NO_DEPRECATE
#endif
#ifdef CJPEG_FUZZER
#define JPEG_INTERNALS
#endif
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
#include "jversion.h" /* for version message */
#include "jconfigint.h"
/* 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);
* or 4) don't put back the data, and modify the input_init methods to assume
* they start reading after the start of file.
* #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, TRUE);
#endif
#ifdef GIF_SUPPORTED
case 'G':
return jinit_read_gif(cinfo);
#endif
#ifdef PPM_SUPPORTED
case 'P':
return jinit_read_ppm(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 *icc_filename; /* for -icc switch */
static char *outfilename; /* for -outfile switch */
boolean memdst; /* for -memdst switch */
boolean report; /* for -report switch */
boolean strict; /* for -strict switch */
#ifdef CJPEG_FUZZER
#include <setjmp.h>
struct my_error_mgr {
struct jpeg_error_mgr pub;
jmp_buf setjmp_buffer;
};
void my_error_exit(j_common_ptr cinfo)
{
struct my_error_mgr *myerr = (struct my_error_mgr *)cinfo->err;
longjmp(myerr->setjmp_buffer, 1);
}
static void my_emit_message_fuzzer(j_common_ptr cinfo, int msg_level)
{
if (msg_level < 0)
cinfo->err->num_warnings++;
}
#define HANDLE_ERROR() { \
if (cinfo.global_state > CSTATE_START) { \
if (memdst && outbuffer) \
(*cinfo.dest->term_destination) (&cinfo); \
jpeg_abort_compress(&cinfo); \
} \
jpeg_destroy_compress(&cinfo); \
if (input_file != stdin && input_file != NULL) \
fclose(input_file); \
if (memdst) \
free(outbuffer); \
return EXIT_FAILURE; \
}
#endif
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 most useful range,\n");
fprintf(stderr, " default is 75)\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 accurate integer DCT method%s\n",
(JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
#endif
#ifdef DCT_IFAST_SUPPORTED
fprintf(stderr, " -dct fast Use less accurate integer DCT method [legacy feature]%s\n",
(JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
#endif
#ifdef DCT_FLOAT_SUPPORTED
fprintf(stderr, " -dct float Use floating-point DCT method [legacy feature]%s\n",
(JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
#endif
fprintf(stderr, " -icc FILE Embed ICC profile contained in FILE\n");
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, " -report Report compression progress\n");
fprintf(stderr, " -strict Treat all warnings as fatal\n");
fprintf(stderr, " -verbose or -debug Emit debug output\n");
fprintf(stderr, " -version Print version information and exit\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;
icc_filename = NULL;
outfilename = NULL;
memdst = FALSE;
report = FALSE;
strict = 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, "version", 4)) {
fprintf(stderr, "%s version %s (build %s)\n",
PACKAGE_NAME, VERSION, BUILD);
exit(EXIT_SUCCESS);
} else if (keymatch(arg, "grayscale", 2) ||
keymatch(arg, "greyscale", 2)) {
/* Force a monochrome JPEG file to be generated. */
jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
} else if (keymatch(arg, "rgb", 3)) {
/* Force an RGB JPEG file to be generated. */
jpeg_set_colorspace(cinfo, JCS_RGB);
} else if (keymatch(arg, "icc", 1)) {
/* Set ICC filename. */
if (++argn >= argc) /* advance to next argument */
usage();
icc_filename = argv[argn];
} 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, "report", 3)) {
report = TRUE;
} 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, "strict", 2)) {
strict = TRUE;
} 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) */
}
METHODDEF(void)
my_emit_message(j_common_ptr cinfo, int msg_level)
{
if (msg_level < 0) {
/* Treat warning as fatal */
cinfo->err->error_exit(cinfo);
} else {
if (cinfo->err->trace_level >= msg_level)
cinfo->err->output_message(cinfo);
}
}
/*
* The main program.
*/
int
main(int argc, char **argv)
{
struct jpeg_compress_struct cinfo;
#ifdef CJPEG_FUZZER
struct my_error_mgr myerr;
struct jpeg_error_mgr &jerr = myerr.pub;
#else
struct jpeg_error_mgr jerr;
#endif
struct cdjpeg_progress_mgr progress;
int file_index;
cjpeg_source_ptr src_mgr;
FILE *input_file = NULL;
FILE *icc_file;
JOCTET *icc_profile = NULL;
long icc_len = 0;
FILE *output_file = NULL;
unsigned char *outbuffer = NULL;
unsigned long outsize = 0;
JDIMENSION num_scanlines;
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;
/* 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);
if (strict)
jerr.emit_message = my_emit_message;
#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();
}
if (icc_filename != NULL) {
if ((icc_file = fopen(icc_filename, READ_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, icc_filename);
exit(EXIT_FAILURE);
}
if (fseek(icc_file, 0, SEEK_END) < 0 ||
(icc_len = ftell(icc_file)) < 1 ||
fseek(icc_file, 0, SEEK_SET) < 0) {
fprintf(stderr, "%s: can't determine size of %s\n", progname,
icc_filename);
exit(EXIT_FAILURE);
}
if ((icc_profile = (JOCTET *)malloc(icc_len)) == NULL) {
fprintf(stderr, "%s: can't allocate memory for ICC profile\n", progname);
fclose(icc_file);
exit(EXIT_FAILURE);
}
if (fread(icc_profile, icc_len, 1, icc_file) < 1) {
fprintf(stderr, "%s: can't read ICC profile from %s\n", progname,
icc_filename);
free(icc_profile);
fclose(icc_file);
exit(EXIT_FAILURE);
}
fclose(icc_file);
}
#ifdef CJPEG_FUZZER
jerr.error_exit = my_error_exit;
jerr.emit_message = my_emit_message_fuzzer;
if (setjmp(myerr.setjmp_buffer))
HANDLE_ERROR()
#endif
if (report) {
start_progress_monitor((j_common_ptr)&cinfo, &progress);
progress.report = report;
}
/* 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;
#ifdef CJPEG_FUZZER
src_mgr->max_pixels = 1048576;
#endif
/* 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);
#ifdef CJPEG_FUZZER
if (setjmp(myerr.setjmp_buffer))
HANDLE_ERROR()
#endif
/* Start compressor */
jpeg_start_compress(&cinfo, TRUE);
if (icc_profile != NULL)
jpeg_write_icc_profile(&cinfo, icc_profile, (unsigned int)icc_len);
/* 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);
if (report)
end_progress_monitor((j_common_ptr)&cinfo);
if (memdst) {
#ifndef CJPEG_FUZZER
fprintf(stderr, "Compressed size: %lu bytes\n", outsize);
#endif
free(outbuffer);
}
free(icc_profile);
/* All done. */
return (jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);
}

176
android/extern/libjpeg-turbo/cmakescripts/BuildPackages.cmake vendored
View File

@@ -1,176 +0,0 @@
# This file is included from the top-level CMakeLists.txt. We just store it
# here to avoid cluttering up that file.
###############################################################################
# Linux RPM and DEB
###############################################################################
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(RPMARCH ${CMAKE_SYSTEM_PROCESSOR})
if(CPU_TYPE STREQUAL "x86_64")
set(DEBARCH amd64)
elseif(CPU_TYPE STREQUAL "arm64")
set(DEBARCH ${CPU_TYPE})
elseif(CPU_TYPE STREQUAL "arm")
check_c_source_compiles("
#if __ARM_PCS_VFP != 1
#error \"float ABI != hard\"
#endif
int main(void) { return 0; }" HAVE_HARD_FLOAT)
if(HAVE_HARD_FLOAT)
set(RPMARCH armv7hl)
set(DEBARCH armhf)
else()
set(RPMARCH armel)
set(DEBARCH armel)
endif()
elseif(CMAKE_SYSTEM_PROCESSOR_LC STREQUAL "ppc64le")
set(DEBARCH ppc64el)
elseif(CPU_TYPE STREQUAL "powerpc" AND BITS EQUAL 32)
set(RPMARCH ppc)
set(DEBARCH ppc)
else()
set(DEBARCH ${CMAKE_SYSTEM_PROCESSOR})
endif()
message(STATUS "RPM architecture = ${RPMARCH}, DEB architecture = ${DEBARCH}")
# Re-set CMAKE_POSITION_INDEPENDENT_CODE so that the RPM spec file works
# properly
boolean_number(CMAKE_POSITION_INDEPENDENT_CODE)
configure_file(release/makerpm.in pkgscripts/makerpm)
configure_file(release/rpm.spec.in pkgscripts/rpm.spec @ONLY)
add_custom_target(rpm pkgscripts/makerpm
SOURCES pkgscripts/makerpm)
configure_file(release/makesrpm.in pkgscripts/makesrpm)
add_custom_target(srpm pkgscripts/makesrpm
SOURCES pkgscripts/makesrpm
DEPENDS dist)
configure_file(release/makedpkg.in pkgscripts/makedpkg)
configure_file(release/deb-control.in pkgscripts/deb-control)
add_custom_target(deb pkgscripts/makedpkg
SOURCES pkgscripts/makedpkg)
endif() # Linux
###############################################################################
# Windows installer (NullSoft Installer)
###############################################################################
if(WIN32)
if(MSVC)
set(INST_PLATFORM "Visual C++")
set(INST_ID vc)
set(INST_NAME ${CMAKE_PROJECT_NAME}-${VERSION}-${INST_ID})
set(INST_REG_NAME ${CMAKE_PROJECT_NAME})
elseif(MINGW)
set(INST_PLATFORM GCC)
set(INST_ID gcc)
set(INST_NAME ${CMAKE_PROJECT_NAME}-${VERSION}-${INST_ID})
set(INST_REG_NAME ${CMAKE_PROJECT_NAME}-${INST_ID})
set(INST_DEFS -DGCC)
endif()
if(BITS EQUAL 64)
set(INST_PLATFORM "${INST_PLATFORM} 64-bit")
set(INST_NAME ${INST_NAME}64)
set(INST_REG_NAME ${INST_REG_NAME}64)
set(INST_DEFS ${INST_DEFS} -DWIN64)
endif()
if(WITH_JAVA)
set(INST_DEFS ${INST_DEFS} -DJAVA)
endif()
if(GENERATOR_IS_MULTI_CONFIG)
set(INST_DEFS ${INST_DEFS} "-DBUILDDIR=${CMAKE_CFG_INTDIR}\\")
else()
set(INST_DEFS ${INST_DEFS} "-DBUILDDIR=")
endif()
string(REGEX REPLACE "/" "\\\\" INST_DIR ${CMAKE_INSTALL_PREFIX})
configure_file(release/installer.nsi.in installer.nsi @ONLY)
# TODO: It would be nice to eventually switch to CPack and eliminate this mess,
# but not today.
configure_file(win/projectTargets.cmake.in
win/${CMAKE_PROJECT_NAME}Targets.cmake @ONLY)
configure_file(win/${INST_ID}/projectTargets-release.cmake.in
win/${CMAKE_PROJECT_NAME}Targets-release.cmake @ONLY)
if(WITH_JAVA)
set(JAVA_DEPEND turbojpeg-java)
endif()
if(WITH_TURBOJPEG)
set(TURBOJPEG_DEPEND turbojpeg turbojpeg-static tjbench)
endif()
add_custom_target(installer
makensis -nocd ${INST_DEFS} installer.nsi
DEPENDS jpeg jpeg-static rdjpgcom wrjpgcom cjpeg djpeg jpegtran
${JAVA_DEPEND} ${TURBOJPEG_DEPEND}
SOURCES installer.nsi)
endif() # WIN32
###############################################################################
# Mac DMG
###############################################################################
if(APPLE)
set(ARMV8_BUILD "" CACHE PATH
"Directory containing Armv8 iOS or macOS build to include in universal binaries")
set(MACOS_APP_CERT_NAME "" CACHE STRING
"Name of the Developer ID Application certificate (in the macOS keychain) that should be used to sign the libjpeg-turbo DMG. Leave this blank to generate an unsigned DMG.")
set(MACOS_INST_CERT_NAME "" CACHE STRING
"Name of the Developer ID Installer certificate (in the macOS keychain) that should be used to sign the libjpeg-turbo installer package. Leave this blank to generate an unsigned package.")
configure_file(release/makemacpkg.in pkgscripts/makemacpkg)
configure_file(release/Distribution.xml.in pkgscripts/Distribution.xml)
configure_file(release/Welcome.rtf.in pkgscripts/Welcome.rtf)
configure_file(release/uninstall.in pkgscripts/uninstall)
add_custom_target(dmg pkgscripts/makemacpkg
SOURCES pkgscripts/makemacpkg)
endif() # APPLE
###############################################################################
# Generic
###############################################################################
add_custom_target(dist
COMMAND git archive --prefix=${CMAKE_PROJECT_NAME}-${VERSION}/ HEAD |
gzip > ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}-${VERSION}.tar.gz
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
configure_file(release/maketarball.in pkgscripts/maketarball)
add_custom_target(tarball pkgscripts/maketarball
SOURCES pkgscripts/maketarball)
configure_file(release/libjpeg.pc.in pkgscripts/libjpeg.pc @ONLY)
if(WITH_TURBOJPEG)
configure_file(release/libturbojpeg.pc.in pkgscripts/libturbojpeg.pc @ONLY)
endif()
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
pkgscripts/${CMAKE_PROJECT_NAME}ConfigVersion.cmake
VERSION ${VERSION} COMPATIBILITY AnyNewerVersion)
configure_package_config_file(release/Config.cmake.in
pkgscripts/${CMAKE_PROJECT_NAME}Config.cmake
INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${CMAKE_PROJECT_NAME})

419
android/extern/libjpeg-turbo/cmakescripts/GNUInstallDirs.cmake vendored
View File

@@ -1,419 +0,0 @@
#.rst:
# GNUInstallDirs
# --------------
#
# Define GNU standard installation directories
#
# Provides install directory variables as defined by the
# `GNU Coding Standards`_.
#
# .. _`GNU Coding Standards`: https://www.gnu.org/prep/standards/html_node/Directory-Variables.html
#
# Result Variables
# ^^^^^^^^^^^^^^^^
#
# Inclusion of this module defines the following variables:
#
# ``CMAKE_INSTALL_<dir>``
#
# Destination for files of a given type. This value may be passed to
# the ``DESTINATION`` options of :command:`install` commands for the
# corresponding file type.
#
# ``CMAKE_INSTALL_FULL_<dir>``
#
# The absolute path generated from the corresponding ``CMAKE_INSTALL_<dir>``
# value. If the value is not already an absolute path, an absolute path
# is constructed typically by prepending the value of the
# :variable:`CMAKE_INSTALL_PREFIX` variable. However, there are some
# `special cases`_ as documented below.
#
# where ``<dir>`` is one of:
#
# ``BINDIR``
# user executables (``bin``)
# ``SBINDIR``
# system admin executables (``sbin``)
# ``LIBEXECDIR``
# program executables (``libexec``)
# ``SYSCONFDIR``
# read-only single-machine data (``etc``)
# ``SHAREDSTATEDIR``
# modifiable architecture-independent data (``com``)
# ``LOCALSTATEDIR``
# modifiable single-machine data (``var``)
# ``LIBDIR``
# object code libraries (``lib`` or ``lib64``
# or ``lib/<multiarch-tuple>`` on Debian)
# ``INCLUDEDIR``
# C header files (``include``)
# ``OLDINCLUDEDIR``
# C header files for non-gcc (``/usr/include``)
# ``DATAROOTDIR``
# read-only architecture-independent data root (``share``)
# ``DATADIR``
# read-only architecture-independent data (``DATAROOTDIR``)
# ``INFODIR``
# info documentation (``DATAROOTDIR/info``)
# ``LOCALEDIR``
# locale-dependent data (``DATAROOTDIR/locale``)
# ``MANDIR``
# man documentation (``DATAROOTDIR/man``)
# ``DOCDIR``
# documentation root (``DATAROOTDIR/doc/PROJECT_NAME``)
#
# If the includer does not define a value the above-shown default will be
# used and the value will appear in the cache for editing by the user.
#
# Special Cases
# ^^^^^^^^^^^^^
#
# The following values of :variable:`CMAKE_INSTALL_PREFIX` are special:
#
# ``/``
#
# For ``<dir>`` other than the ``SYSCONFDIR`` and ``LOCALSTATEDIR``,
# the value of ``CMAKE_INSTALL_<dir>`` is prefixed with ``usr/`` if
# it is not user-specified as an absolute path. For example, the
# ``INCLUDEDIR`` value ``include`` becomes ``usr/include``.
# This is required by the `GNU Coding Standards`_, which state:
#
# When building the complete GNU system, the prefix will be empty
# and ``/usr`` will be a symbolic link to ``/``.
#
# ``/usr``
#
# For ``<dir>`` equal to ``SYSCONFDIR`` or ``LOCALSTATEDIR``, the
# ``CMAKE_INSTALL_FULL_<dir>`` is computed by prepending just ``/``
# to the value of ``CMAKE_INSTALL_<dir>`` if it is not user-specified
# as an absolute path. For example, the ``SYSCONFDIR`` value ``etc``
# becomes ``/etc``. This is required by the `GNU Coding Standards`_.
#
# ``/opt/...``
#
# For ``<dir>`` equal to ``SYSCONFDIR`` or ``LOCALSTATEDIR``, the
# ``CMAKE_INSTALL_FULL_<dir>`` is computed by *appending* the prefix
# to the value of ``CMAKE_INSTALL_<dir>`` if it is not user-specified
# as an absolute path. For example, the ``SYSCONFDIR`` value ``etc``
# becomes ``/etc/opt/...``. This is defined by the
# `Filesystem Hierarchy Standard`_.
#
# .. _`Filesystem Hierarchy Standard`: https://refspecs.linuxfoundation.org/FHS_3.0/fhs/index.html
#
# Macros
# ^^^^^^
#
# .. command:: GNUInstallDirs_get_absolute_install_dir
#
# ::
#
# GNUInstallDirs_get_absolute_install_dir(absvar var)
#
# Set the given variable ``absvar`` to the absolute path contained
# within the variable ``var``. This is to allow the computation of an
# absolute path, accounting for all the special cases documented
# above. While this macro is used to compute the various
# ``CMAKE_INSTALL_FULL_<dir>`` variables, it is exposed publicly to
# allow users who create additional path variables to also compute
# absolute paths where necessary, using the same logic.
#=============================================================================
# Copyright 2018 Matthias Räncker
# Copyright 2016, 2019 D. R. Commander
# Copyright 2016 Dmitry Marakasov
# Copyright 2016 Roger Leigh
# Copyright 2015 Alex Turbov
# Copyright 2014 Rolf Eike Beer
# Copyright 2014 Daniele E. Domenichelli
# Copyright 2013 Dimitri John Ledkov
# Copyright 2011 Alex Neundorf
# Copyright 2011 Eric NOULARD
# Copyright 2011, 2013-2015 Kitware, Inc.
# Copyright 2011 Nikita Krupen'ko
#
# 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 names of Kitware, Inc., the Insight Software Consortium,
# nor the names of their 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
# HOLDER 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.
#=============================================================================
# Installation directories
#
macro(GNUInstallDirs_set_install_dir var docstring)
# If CMAKE_INSTALL_PREFIX changes and CMAKE_INSTALL_*DIR is still set to the
# default value, then modify it accordingly. This presumes that the default
# value may change based on the prefix.
set(_GNUInstallDirs_CMAKE_INSTALL_FORCE_${var} "")
if(NOT DEFINED CMAKE_INSTALL_${var})
set(_GNUInstallDirs_CMAKE_INSTALL_DEFAULT_${var} 1 CACHE INTERNAL
"CMAKE_INSTALL_${var} has default value")
elseif(DEFINED _GNUInstallDirs_CMAKE_INSTALL_LAST_DEFAULT_${var} AND
NOT "${_GNUInstallDirs_CMAKE_INSTALL_LAST_DEFAULT_${var}}" STREQUAL
"${CMAKE_INSTALL_DEFAULT_${var}}" AND
_GNUInstallDirs_CMAKE_INSTALL_DEFAULT_${var} AND
"${_GNUInstallDirs_CMAKE_INSTALL_LAST_${var}}" STREQUAL
"${CMAKE_INSTALL_${var}}")
set(_GNUInstallDirs_CMAKE_INSTALL_FORCE_${var} "FORCE")
endif()
set(CMAKE_INSTALL_${var} "${CMAKE_INSTALL_DEFAULT_${var}}" CACHE PATH
"${docstring} (Default: ${CMAKE_INSTALL_DEFAULT_${var}})"
${_GNUInstallDirs_CMAKE_INSTALL_FORCE_${var}})
if(NOT CMAKE_INSTALL_${var} STREQUAL CMAKE_INSTALL_DEFAULT_${var})
unset(_GNUInstallDirs_CMAKE_INSTALL_DEFAULT_${var} CACHE)
endif()
# Save for next run
set(_GNUInstallDirs_CMAKE_INSTALL_LAST_${var} "${CMAKE_INSTALL_${var}}"
CACHE INTERNAL "CMAKE_INSTALL_${var} during last run")
set(_GNUInstallDirs_CMAKE_INSTALL_LAST_DEFAULT_${var}
"${CMAKE_INSTALL_DEFAULT_${var}}" CACHE INTERNAL
"CMAKE_INSTALL_DEFAULT_${var} during last run")
endmacro()
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_BINDIR)
set(CMAKE_INSTALL_DEFAULT_BINDIR "bin")
endif()
GNUInstallDirs_set_install_dir(BINDIR
"Directory into which user executables should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_SBINDIR)
set(CMAKE_INSTALL_DEFAULT_SBINDIR "sbin")
endif()
GNUInstallDirs_set_install_dir(SBINDIR
"Directory into which system admin executables should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_LIBEXECDIR)
set(CMAKE_INSTALL_DEFAULT_LIBEXECDIR "libexec")
endif()
GNUInstallDirs_set_install_dir(LIBEXECDIR
"Directory under which executables run by other programs should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_SYSCONFDIR)
set(CMAKE_INSTALL_DEFAULT_SYSCONFDIR "etc")
endif()
GNUInstallDirs_set_install_dir(SYSCONFDIR
"Directory into which machine-specific read-only ASCII data and configuration files should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_SHAREDSTATEDIR)
set(CMAKE_INSTALL_DEFAULT_SHAREDSTATEDIR "com")
endif()
GNUInstallDirs_set_install_dir(SHAREDSTATEDIR
"Directory into which architecture-independent run-time-modifiable data files should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_LOCALSTATEDIR)
set(CMAKE_INSTALL_DEFAULT_LOCALSTATEDIR "var")
endif()
GNUInstallDirs_set_install_dir(LOCALSTATEDIR
"Directory into which machine-specific run-time-modifiable data files should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_LIBDIR)
set(CMAKE_INSTALL_DEFAULT_LIBDIR "lib")
# Override this default 'lib' with 'lib64' iff:
# - we are on Linux system but NOT cross-compiling
# - we are NOT on debian
# - we are on a 64 bits system
# reason is: amd64 ABI: http://www.x86-64.org/documentation/abi.pdf
# For Debian with multiarch, use 'lib/${CMAKE_LIBRARY_ARCHITECTURE}' if
# CMAKE_LIBRARY_ARCHITECTURE is set (which contains e.g. "i386-linux-gnu"
# and CMAKE_INSTALL_PREFIX is "/usr"
# See http://wiki.debian.org/Multiarch
if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|kFreeBSD|GNU)$"
AND NOT CMAKE_CROSSCOMPILING)
if (EXISTS "/etc/debian_version") # is this a debian system ?
if(CMAKE_LIBRARY_ARCHITECTURE)
if("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
set(CMAKE_INSTALL_DEFAULT_LIBDIR "lib/${CMAKE_LIBRARY_ARCHITECTURE}")
endif()
endif()
else() # not debian, rely on CMAKE_SIZEOF_VOID_P:
if(NOT DEFINED CMAKE_SIZEOF_VOID_P)
message(AUTHOR_WARNING
"Unable to determine default CMAKE_INSTALL_LIBDIR directory because no target architecture is known. "
"Please enable at least one language before including GNUInstallDirs.")
else()
if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
set(CMAKE_INSTALL_DEFAULT_LIBDIR "lib64")
elseif(CMAKE_C_COMPILER_ABI MATCHES "ELF X32")
set(CMAKE_INSTALL_DEFAULT_LIBDIR "libx32")
endif()
endif()
endif()
endif()
endif()
GNUInstallDirs_set_install_dir(LIBDIR
"Directory into which object files and object code libraries should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_INCLUDEDIR)
set(CMAKE_INSTALL_DEFAULT_INCLUDEDIR "include")
endif()
GNUInstallDirs_set_install_dir(INCLUDEDIR
"Directory into which C header files should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_OLDINCLUDEDIR)
set(CMAKE_INSTALL_DEFAULT_OLDINCLUDEDIR "/usr/include")
endif()
GNUInstallDirs_set_install_dir(OLDINCLUDEDIR
PATH "Directory into which C header files for non-GCC compilers should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_DATAROOTDIR)
set(CMAKE_INSTALL_DEFAULT_DATAROOTDIR "share")
endif()
GNUInstallDirs_set_install_dir(DATAROOTDIR
"The root of the directory tree for read-only architecture-independent data files")
#-----------------------------------------------------------------------------
# Values whose defaults are relative to DATAROOTDIR. Store empty values in
# the cache and store the defaults in local variables if the cache values are
# not set explicitly. This auto-updates the defaults as DATAROOTDIR changes.
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_DATADIR)
set(CMAKE_INSTALL_DEFAULT_DATADIR "<CMAKE_INSTALL_DATAROOTDIR>")
endif()
GNUInstallDirs_set_install_dir(DATADIR
"The directory under which read-only architecture-independent data files should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_INFODIR)
if(CMAKE_SYSTEM_NAME MATCHES "^(.*BSD|DragonFly)$")
set(CMAKE_INSTALL_DEFAULT_INFODIR "info")
else()
set(CMAKE_INSTALL_DEFAULT_INFODIR "<CMAKE_INSTALL_DATAROOTDIR>/info")
endif()
endif()
GNUInstallDirs_set_install_dir(INFODIR
"The directory into which info documentation files should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_MANDIR)
if(CMAKE_SYSTEM_NAME MATCHES "^(.*BSD|DragonFly)$")
set(CMAKE_INSTALL_DEFAULT_MANDIR "man")
else()
set(CMAKE_INSTALL_DEFAULT_MANDIR "<CMAKE_INSTALL_DATAROOTDIR>/man")
endif()
endif()
GNUInstallDirs_set_install_dir(MANDIR
"The directory under which man pages should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_LOCALEDIR)
set(CMAKE_INSTALL_DEFAULT_LOCALEDIR "<CMAKE_INSTALL_DATAROOTDIR>/locale")
endif()
GNUInstallDirs_set_install_dir(LOCALEDIR
"The directory under which locale-specific message catalogs should be installed")
if(NOT DEFINED CMAKE_INSTALL_DEFAULT_DOCDIR)
set(CMAKE_INSTALL_DEFAULT_DOCDIR "<CMAKE_INSTALL_DATAROOTDIR>/doc/${PROJECT_NAME}")
endif()
GNUInstallDirs_set_install_dir(DOCDIR
"The directory into which documentation files (other than info files) should be installed")
#-----------------------------------------------------------------------------
mark_as_advanced(
CMAKE_INSTALL_BINDIR
CMAKE_INSTALL_SBINDIR
CMAKE_INSTALL_LIBEXECDIR
CMAKE_INSTALL_SYSCONFDIR
CMAKE_INSTALL_SHAREDSTATEDIR
CMAKE_INSTALL_LOCALSTATEDIR
CMAKE_INSTALL_LIBDIR
CMAKE_INSTALL_INCLUDEDIR
CMAKE_INSTALL_OLDINCLUDEDIR
CMAKE_INSTALL_DATAROOTDIR
CMAKE_INSTALL_DATADIR
CMAKE_INSTALL_INFODIR
CMAKE_INSTALL_LOCALEDIR
CMAKE_INSTALL_MANDIR
CMAKE_INSTALL_DOCDIR
)
macro(GNUInstallDirs_get_absolute_install_dir absvar var)
string(REGEX REPLACE "[<>]" "@" ${var} "${${var}}")
# Handle the specific case of an empty CMAKE_INSTALL_DATAROOTDIR
if(NOT CMAKE_INSTALL_DATAROOTDIR AND
${var} MATCHES "\@CMAKE_INSTALL_DATAROOTDIR\@/")
string(CONFIGURE "${${var}}" ${var} @ONLY)
string(REGEX REPLACE "^/" "" ${var} "${${var}}")
else()
string(CONFIGURE "${${var}}" ${var} @ONLY)
endif()
if(NOT IS_ABSOLUTE "${${var}}")
# Handle special cases:
# - CMAKE_INSTALL_PREFIX == /
# - CMAKE_INSTALL_PREFIX == /usr
# - CMAKE_INSTALL_PREFIX == /opt/...
if("${CMAKE_INSTALL_PREFIX}" STREQUAL "/")
if("${dir}" STREQUAL "SYSCONFDIR" OR "${dir}" STREQUAL "LOCALSTATEDIR")
set(${absvar} "/${${var}}")
else()
if (NOT "${${var}}" MATCHES "^usr/")
set(${var} "usr/${${var}}")
endif()
set(${absvar} "/${${var}}")
endif()
elseif("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
if("${dir}" STREQUAL "SYSCONFDIR" OR "${dir}" STREQUAL "LOCALSTATEDIR")
set(${absvar} "/${${var}}")
else()
set(${absvar} "${CMAKE_INSTALL_PREFIX}/${${var}}")
endif()
elseif("${CMAKE_INSTALL_PREFIX}" MATCHES "^/opt/.*")
if("${dir}" STREQUAL "SYSCONFDIR" OR "${dir}" STREQUAL "LOCALSTATEDIR")
set(${absvar} "/${${var}}${CMAKE_INSTALL_PREFIX}")
else()
set(${absvar} "${CMAKE_INSTALL_PREFIX}/${${var}}")
endif()
else()
set(${absvar} "${CMAKE_INSTALL_PREFIX}/${${var}}")
endif()
else()
set(${absvar} "${${var}}")
endif()
string(REGEX REPLACE "/$" "" ${absvar} "${${absvar}}")
endmacro()
# Result directories
#
foreach(dir
BINDIR
SBINDIR
LIBEXECDIR
SYSCONFDIR
SHAREDSTATEDIR
LOCALSTATEDIR
LIBDIR
INCLUDEDIR
OLDINCLUDEDIR
DATAROOTDIR
DATADIR
INFODIR
LOCALEDIR
MANDIR
DOCDIR
)
GNUInstallDirs_get_absolute_install_dir(CMAKE_INSTALL_FULL_${dir} CMAKE_INSTALL_${dir})
endforeach()

13
android/extern/libjpeg-turbo/cmakescripts/PackageInfo.cmake vendored
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@@ -1,13 +0,0 @@
# This file is included from the top-level CMakeLists.txt. We just store it
# here to avoid cluttering up that file.
set(PKGNAME ${CMAKE_PROJECT_NAME} CACHE STRING
"Distribution package name (default: ${CMAKE_PROJECT_NAME})")
set(PKGVENDOR "The ${CMAKE_PROJECT_NAME} Project" CACHE STRING
"Vendor name to be included in distribution package descriptions (default: The ${CMAKE_PROJECT_NAME} Project)")
set(PKGURL "http://www.${CMAKE_PROJECT_NAME}.org" CACHE STRING
"URL of project web site to be included in distribution package descriptions (default: http://www.${CMAKE_PROJECT_NAME}.org)")
set(PKGEMAIL "information@${CMAKE_PROJECT_NAME}.org" CACHE STRING
"E-mail of project maintainer to be included in distribution package descriptions (default: information@${CMAKE_PROJECT_NAME}.org")
set(PKGID "com.${CMAKE_PROJECT_NAME}.${PKGNAME}" CACHE STRING
"Globally unique package identifier (reverse DNS notation) (default: com.${CMAKE_PROJECT_NAME}.${PKGNAME})")

24
android/extern/libjpeg-turbo/cmakescripts/cmake_uninstall.cmake.in vendored
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@@ -1,24 +0,0 @@
# This code is from the CMake FAQ
if (NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
message(FATAL_ERROR "Cannot find install manifest: \"@CMAKE_BINARY_DIR@/install_manifest.txt\"")
endif(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
file(READ "@CMAKE_BINARY_DIR@/install_manifest.txt" files)
string(REGEX REPLACE "\n" ";" files "${files}")
list(REVERSE files)
foreach (file ${files})
message(STATUS "Uninstalling \"$ENV{DESTDIR}${file}\"")
if (EXISTS "$ENV{DESTDIR}${file}")
execute_process(
COMMAND "@CMAKE_COMMAND@" -E remove "$ENV{DESTDIR}${file}"
OUTPUT_VARIABLE rm_out
RESULT_VARIABLE rm_retval
)
if(NOT ${rm_retval} EQUAL 0)
message(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
endif (NOT ${rm_retval} EQUAL 0)
else (EXISTS "$ENV{DESTDIR}${file}")
message(STATUS "File \"$ENV{DESTDIR}${file}\" does not exist.")
endif (EXISTS "$ENV{DESTDIR}${file}")
endforeach(file)

41
android/extern/libjpeg-turbo/cmakescripts/testclean.cmake vendored
View File

@@ -1,41 +0,0 @@
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
*_411_*.bmp
*_411_*.png
*_411_*.ppm
*_411_*.jpg
*_411.yuv
tjbenchtest*.log
tjexampletest*.log)
if(NOT FILES STREQUAL "")
message(STATUS "Removing test files")
file(REMOVE ${FILES})
else()
message(STATUS "No files to remove")
endif()

60
android/extern/libjpeg-turbo/cmyk.h vendored
View File

@@ -1,60 +0,0 @@
/*
* cmyk.h
*
* Copyright (C) 2017-2018, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains convenience functions for performing quick & dirty
* CMYK<->RGB conversion. This algorithm is suitable for testing purposes
* only. Properly converting between CMYK and RGB requires a color management
* system.
*/
#ifndef CMYK_H
#define CMYK_H
#include <jinclude.h>
#define JPEG_INTERNALS
#include <jpeglib.h>
/* Fully reversible */
INLINE
LOCAL(void)
rgb_to_cmyk(JSAMPLE r, JSAMPLE g, JSAMPLE b, JSAMPLE *c, JSAMPLE *m,
JSAMPLE *y, JSAMPLE *k)
{
double ctmp = 1.0 - ((double)r / 255.0);
double mtmp = 1.0 - ((double)g / 255.0);
double ytmp = 1.0 - ((double)b / 255.0);
double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
else {
ctmp = (ctmp - ktmp) / (1.0 - ktmp);
mtmp = (mtmp - ktmp) / (1.0 - ktmp);
ytmp = (ytmp - ktmp) / (1.0 - ktmp);
}
*c = (JSAMPLE)(255.0 - ctmp * 255.0 + 0.5);
*m = (JSAMPLE)(255.0 - mtmp * 255.0 + 0.5);
*y = (JSAMPLE)(255.0 - ytmp * 255.0 + 0.5);
*k = (JSAMPLE)(255.0 - ktmp * 255.0 + 0.5);
}
/* Fully reversible only for C/M/Y/K values generated with rgb_to_cmyk() */
INLINE
LOCAL(void)
cmyk_to_rgb(JSAMPLE c, JSAMPLE m, JSAMPLE y, JSAMPLE k, JSAMPLE *r, JSAMPLE *g,
JSAMPLE *b)
{
*r = (JSAMPLE)((double)c * (double)k / 255.0 + 0.5);
*g = (JSAMPLE)((double)m * (double)k / 255.0 + 0.5);
*b = (JSAMPLE)((double)y * (double)k / 255.0 + 0.5);
}
#endif /* CMYK_H */

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

95
android/extern/libjpeg-turbo/croptest.in vendored
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@@ -1,95 +0,0 @@
#!/bin/bash
set -u
set -e
trap onexit INT
trap onexit TERM
trap onexit EXIT
onexit()
{
if [ -d $OUTDIR ]; then
rm -rf $OUTDIR
fi
}
runme()
{
echo \*\*\* $*
$*
}
IMAGE=vgl_6548_0026a.bmp
WIDTH=128
HEIGHT=95
IMGDIR=@CMAKE_CURRENT_SOURCE_DIR@/testimages
OUTDIR=`mktemp -d /tmp/__croptest_output.XXXXXX`
EXEDIR=@CMAKE_CURRENT_BINARY_DIR@
if [ -d $OUTDIR ]; then
rm -rf $OUTDIR
fi
mkdir -p $OUTDIR
exec >$EXEDIR/croptest.log
echo "============================================================"
echo "$IMAGE ($WIDTH x $HEIGHT)"
echo "============================================================"
echo
for PROGARG in "" -progressive; do
cp $IMGDIR/$IMAGE $OUTDIR
basename=`basename $IMAGE .bmp`
echo "------------------------------------------------------------"
echo "Generating test images"
echo "------------------------------------------------------------"
echo
runme $EXEDIR/cjpeg $PROGARG -grayscale -outfile $OUTDIR/${basename}_GRAY.jpg $IMGDIR/${basename}.bmp
runme $EXEDIR/cjpeg $PROGARG -sample 2x2 -outfile $OUTDIR/${basename}_420.jpg $IMGDIR/${basename}.bmp
runme $EXEDIR/cjpeg $PROGARG -sample 2x1 -outfile $OUTDIR/${basename}_422.jpg $IMGDIR/${basename}.bmp
runme $EXEDIR/cjpeg $PROGARG -sample 1x2 -outfile $OUTDIR/${basename}_440.jpg $IMGDIR/${basename}.bmp
runme $EXEDIR/cjpeg $PROGARG -sample 1x1 -outfile $OUTDIR/${basename}_444.jpg $IMGDIR/${basename}.bmp
echo
for NSARG in "" -nosmooth; do
for COLORSARG in "" "-colors 256 -dither none -onepass"; do
for Y in {0..16}; do
for H in {1..16}; do
X=$(( (Y*16)%128 ))
W=$(( WIDTH-X-7 ))
if [ $Y -le 15 ]; then
CROPSPEC="${W}x${H}+${X}+${Y}"
else
Y2=$(( HEIGHT-H ));
CROPSPEC="${W}x${H}+${X}+${Y2}"
fi
echo "------------------------------------------------------------"
echo $PROGARG $NSARG $COLORSARG -crop $CROPSPEC
echo "------------------------------------------------------------"
echo
for samp in GRAY 420 422 440 444; do
$EXEDIR/djpeg $NSARG $COLORSARG -rgb -outfile $OUTDIR/${basename}_${samp}_full.ppm $OUTDIR/${basename}_${samp}.jpg
convert -crop $CROPSPEC $OUTDIR/${basename}_${samp}_full.ppm $OUTDIR/${basename}_${samp}_ref.ppm
runme $EXEDIR/djpeg $NSARG $COLORSARG -crop $CROPSPEC -rgb -outfile $OUTDIR/${basename}_${samp}.ppm $OUTDIR/${basename}_${samp}.jpg
runme cmp $OUTDIR/${basename}_${samp}.ppm $OUTDIR/${basename}_${samp}_ref.ppm
done
echo
done
done
done
done
done
echo SUCCESS!

320
android/extern/libjpeg-turbo/djpeg.1 vendored
View File

@@ -1,320 +0,0 @@
.TH DJPEG 1 "4 November 2020"
.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, or Targa output format can be selected.
.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 grayscale output even if JPEG file is color. Useful for viewing on
monochrome displays; also,
.B djpeg
runs noticeably faster in this mode.
.TP
.B \-rgb
Force RGB output even if JPEG file is grayscale.
.TP
.BI \-scale " M/N"
Scale the output image by a factor M/N. Currently the scale factor must be
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 grayscale; otherwise, 24-bit full-color
format is emitted.
.TP
.B \-gif
Select GIF output format (LZW-compressed). Since GIF does not support more
than 256 colors,
.B \-colors 256
is assumed (unless you specify a smaller number of colors). If you specify
.BR \-fast,
the default number of colors is 216.
.TP
.B \-gif0
Select GIF output format (uncompressed). Since GIF does not support more than
256 colors,
.B \-colors 256
is assumed (unless you specify a smaller number of colors). If you specify
.BR \-fast,
the default number of colors is 216.
.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 grayscale; otherwise, 24-bit full-color
format is emitted.
.TP
.B \-pnm
Select PBMPLUS (PPM/PGM) output format (this is the default format).
PGM is emitted if the JPEG file is grayscale or if
.B \-grayscale
is specified; otherwise PPM is emitted.
.TP
.B \-targa
Select Targa output format. Grayscale format is emitted if the JPEG file is
grayscale 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 accurate integer DCT method (default).
.TP
.B \-dct fast
Use less accurate integer DCT method [legacy feature].
When the Independent JPEG Group's software was first released in 1991, the
decompression time for a 1-megapixel JPEG image on a mainstream PC was measured
in minutes. Thus, the \fBfast\fR integer DCT algorithm provided noticeable
performance benefits. On modern CPUs running libjpeg-turbo, however, the
decompression time for a 1-megapixel JPEG image is measured in milliseconds,
and thus the performance benefits of the \fBfast\fR algorithm are much less
noticeable. On modern x86/x86-64 CPUs that support AVX2 instructions, the
\fBfast\fR and \fBint\fR methods have similar performance. On other types of
CPUs, the \fBfast\fR method is generally about 5-15% faster than the \fBint\fR
method.
If the JPEG image was compressed using a quality level of 85 or below, then
there should be little or no perceptible quality difference between the two
algorithms. When decompressing images that were compressed using quality
levels above 85, however, the difference between the \fBfast\fR and \fBint\fR
methods becomes more pronounced. With images compressed using quality=97, for
instance, the \fBfast\fR method incurs generally about a 4-6 dB loss in PSNR
relative to the \fBint\fR method, but this can be larger for some images. If
you can avoid it, do not use the \fBfast\fR method when decompressing images
that were compressed using quality levels above 97. The algorithm often
degenerates for such images and can actually produce a more lossy output image
than if the JPEG image had been compressed using lower quality levels.
.TP
.B \-dct float
Use floating-point DCT method [legacy feature].
The \fBfloat\fR method does not produce significantly more accurate results
than the \fBint\fR method, and it is much slower. The \fBfloat\fR method may
also give different results on different machines due to varying roundoff
behavior, whereas the integer methods should give the same results on all
machines.
.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 \-icc " file"
Extract ICC color management profile to the specified file.
.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 grayscale 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, an error will occur.
.TP
.BI \-maxscans " N"
Abort if the JPEG image contains more than
.I N
scans. This feature demonstrates a method by which applications can guard
against denial-of-service attacks instigated by specially-crafted malformed
JPEG images containing numerous scans with missing image data or image data
consisting only of "EOB runs" (a feature of progressive JPEG images that allows
potentially hundreds of thousands of adjoining zero-value pixels to be
represented using only a few bytes.) Attempting to decompress such malformed
JPEG images can cause excessive CPU activity, since the decompressor must fully
process each scan (even if the scan is corrupt) before it can proceed to the
next scan.
.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
.BI \-report
Report decompression progress.
.TP
.BI \-skip " Y0,Y1"
Decompress all rows of the JPEG image except those between Y0 and Y1
(inclusive.) Note that if decompression scaling is being used, then Y0 and Y1
are relative to the scaled image dimensions.
.TP
.BI \-crop " WxH+X+Y"
Decompress only a rectangular subregion of the image, starting at point X,Y
with width W and height H. If necessary, X will be shifted left to the nearest
iMCU boundary, and the width will be increased accordingly. Note that if
decompression scaling is being used, then X, Y, W, and H are relative to the
scaled image dimensions. Currently this option only works with the
PBMPLUS (PPM/PGM), GIF, and Targa output formats.
.TP
.BI \-strict
Treat all warnings as fatal. This feature also demonstrates a method by which
applications can guard against attacks instigated by specially-crafted
malformed JPEG images. Enabling this option will cause the decompressor to
abort if the JPEG image contains incomplete or corrupt image data.
.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 .
.TP
.B \-version
Print version information and exit.
.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.
.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.

855
android/extern/libjpeg-turbo/djpeg.c vendored
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@@ -1,855 +0,0 @@
/*
* djpeg.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Modified 2013-2019 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2010-2011, 2013-2017, 2019-2020, 2022, D. R. Commander.
* Copyright (C) 2015, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
* 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.
*/
#ifdef _MSC_VER
#define _CRT_SECURE_NO_DEPRECATE
#endif
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
#include "jversion.h" /* for version message */
#include "jconfigint.h"
#include <ctype.h> /* to declare isprint() */
/* 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 (LZW-compressed) */
FMT_GIF0, /* GIF format (uncompressed) */
FMT_OS2, /* BMP format (OS/2 flavor) */
FMT_PPM, /* PPM/PGM (PBMPLUS formats) */
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 *icc_filename; /* for -icc switch */
JDIMENSION max_scans; /* for -maxscans switch */
static char *outfilename; /* for -outfile switch */
boolean memsrc; /* for -memsrc switch */
boolean report; /* for -report switch */
boolean skip, crop;
JDIMENSION skip_start, skip_end;
JDIMENSION crop_x, crop_y, crop_width, crop_height;
boolean strict; /* for -strict 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");
fprintf(stderr, " -rgb565 Force RGB565 output\n");
#ifdef IDCT_SCALING_SUPPORTED
fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n");
#endif
#ifdef BMP_SUPPORTED
fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n",
(DEFAULT_FMT == FMT_BMP ? " (default)" : ""));
#endif
#ifdef GIF_SUPPORTED
fprintf(stderr, " -gif Select GIF output format (LZW-compressed)%s\n",
(DEFAULT_FMT == FMT_GIF ? " (default)" : ""));
fprintf(stderr, " -gif0 Select GIF output format (uncompressed)%s\n",
(DEFAULT_FMT == FMT_GIF0 ? " (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 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 accurate integer DCT method%s\n",
(JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
#endif
#ifdef DCT_IFAST_SUPPORTED
fprintf(stderr, " -dct fast Use less accurate integer DCT method [legacy feature]%s\n",
(JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
#endif
#ifdef DCT_FLOAT_SUPPORTED
fprintf(stderr, " -dct float Use floating-point DCT method [legacy feature]%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");
fprintf(stderr, " -icc FILE Extract ICC profile to FILE\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, " -maxscans N Maximum number of scans to allow in input file\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, " -report Report decompression progress\n");
fprintf(stderr, " -skip Y0,Y1 Decompress all rows except those between Y0 and Y1 (inclusive)\n");
fprintf(stderr, " -crop WxH+X+Y Decompress only a rectangular subregion of the image\n");
fprintf(stderr, " [requires PBMPLUS (PPM/PGM), GIF, or Targa output format]\n");
fprintf(stderr, " -strict Treat all warnings as fatal\n");
fprintf(stderr, " -verbose or -debug Emit debug output\n");
fprintf(stderr, " -version Print version information and exit\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 */
icc_filename = NULL;
max_scans = 0;
outfilename = NULL;
memsrc = FALSE;
report = FALSE;
skip = FALSE;
crop = FALSE;
strict = 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 (Windows flavor). */
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, "version", 4)) {
fprintf(stderr, "%s version %s (build %s)\n",
PACKAGE_NAME, VERSION, BUILD);
exit(EXIT_SUCCESS);
} else if (keymatch(arg, "fast", 1)) {
/* Select recommended processing options for quick-and-dirty output. */
cinfo->two_pass_quantize = FALSE;
cinfo->dither_mode = JDITHER_ORDERED;
if (!cinfo->quantize_colors) /* don't override an earlier -colors */
cinfo->desired_number_of_colors = 216;
cinfo->dct_method = JDCT_FASTEST;
cinfo->do_fancy_upsampling = FALSE;
} else if (keymatch(arg, "gif", 1)) {
/* GIF output format (LZW-compressed). */
requested_fmt = FMT_GIF;
} else if (keymatch(arg, "gif0", 4)) {
/* GIF output format (uncompressed). */
requested_fmt = FMT_GIF0;
} 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, "rgb565", 2)) {
/* Force RGB565 output. */
cinfo->out_color_space = JCS_RGB565;
} else if (keymatch(arg, "icc", 1)) {
/* Set ICC filename. */
if (++argn >= argc) /* advance to next argument */
usage();
icc_filename = argv[argn];
#ifdef SAVE_MARKERS_SUPPORTED
jpeg_save_markers(cinfo, JPEG_APP0 + 2, 0xFFFF);
#endif
} 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, "maxscans", 4)) {
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%u", &max_scans) != 1)
usage();
} 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, "report", 2)) {
report = TRUE;
} else if (keymatch(arg, "scale", 2)) {
/* Scale the output image by a fraction M/N. */
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%u/%u",
&cinfo->scale_num, &cinfo->scale_denom) != 2)
usage();
} else if (keymatch(arg, "skip", 2)) {
if (++argn >= argc)
usage();
if (sscanf(argv[argn], "%u,%u", &skip_start, &skip_end) != 2 ||
skip_start > skip_end)
usage();
skip = TRUE;
} else if (keymatch(arg, "crop", 2)) {
char c;
if (++argn >= argc)
usage();
if (sscanf(argv[argn], "%u%c%u+%u+%u", &crop_width, &c, &crop_height,
&crop_x, &crop_y) != 5 ||
(c != 'X' && c != 'x') || crop_width < 1 || crop_height < 1)
usage();
crop = TRUE;
} else if (keymatch(arg, "strict", 2)) {
strict = TRUE;
} 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 *datasrc->next_input_byte++;
}
METHODDEF(boolean)
print_text_marker(j_decompress_ptr cinfo)
{
boolean traceit = (cinfo->err->trace_level >= 1);
long 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;
}
METHODDEF(void)
my_emit_message(j_common_ptr cinfo, int msg_level)
{
if (msg_level < 0) {
/* Treat warning as fatal */
cinfo->err->error_exit(cinfo);
} else {
if (cinfo->err->trace_level >= msg_level)
cinfo->err->output_message(cinfo);
}
}
/*
* The main program.
*/
int
main(int argc, char **argv)
{
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
struct cdjpeg_progress_mgr progress;
int file_index;
djpeg_dest_ptr dest_mgr = NULL;
FILE *input_file;
FILE *output_file;
unsigned char *inbuffer = NULL;
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
unsigned long insize = 0;
#endif
JDIMENSION num_scanlines;
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);
/* 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);
if (strict)
jerr.emit_message = my_emit_message;
#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();
}
if (report || max_scans != 0) {
start_progress_monitor((j_common_ptr)&cinfo, &progress);
progress.report = report;
progress.max_scans = max_scans;
}
/* 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 = fread(&inbuffer[insize], 1, INPUT_BUF_SIZE, input_file);
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, TRUE);
break;
case FMT_OS2:
dest_mgr = jinit_write_bmp(&cinfo, TRUE, TRUE);
break;
#endif
#ifdef GIF_SUPPORTED
case FMT_GIF:
dest_mgr = jinit_write_gif(&cinfo, TRUE);
break;
case FMT_GIF0:
dest_mgr = jinit_write_gif(&cinfo, FALSE);
break;
#endif
#ifdef PPM_SUPPORTED
case FMT_PPM:
dest_mgr = jinit_write_ppm(&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);
/* Skip rows */
if (skip) {
JDIMENSION tmp;
/* Check for valid skip_end. We cannot check this value until after
* jpeg_start_decompress() is called. Note that we have already verified
* that skip_start <= skip_end.
*/
if (skip_end > cinfo.output_height - 1) {
fprintf(stderr, "%s: skip region exceeds image height %u\n", progname,
cinfo.output_height);
exit(EXIT_FAILURE);
}
/* Write output file header. This is a hack to ensure that the destination
* manager creates an output image of the proper size.
*/
tmp = cinfo.output_height;
cinfo.output_height -= (skip_end - skip_start + 1);
(*dest_mgr->start_output) (&cinfo, dest_mgr);
cinfo.output_height = tmp;
/* Process data */
while (cinfo.output_scanline < skip_start) {
num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
if ((tmp = jpeg_skip_scanlines(&cinfo, skip_end - skip_start + 1)) !=
skip_end - skip_start + 1) {
fprintf(stderr, "%s: jpeg_skip_scanlines() returned %u rather than %u\n",
progname, tmp, skip_end - skip_start + 1);
exit(EXIT_FAILURE);
}
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);
}
/* Decompress a subregion */
} else if (crop) {
JDIMENSION tmp;
/* Check for valid crop dimensions. We cannot check these values until
* after jpeg_start_decompress() is called.
*/
if (crop_x + crop_width > cinfo.output_width ||
crop_y + crop_height > cinfo.output_height) {
fprintf(stderr, "%s: crop dimensions exceed image dimensions %u x %u\n",
progname, cinfo.output_width, cinfo.output_height);
exit(EXIT_FAILURE);
}
jpeg_crop_scanline(&cinfo, &crop_x, &crop_width);
if (dest_mgr->calc_buffer_dimensions)
(*dest_mgr->calc_buffer_dimensions) (&cinfo, dest_mgr);
else
ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT);
/* Write output file header. This is a hack to ensure that the destination
* manager creates an output image of the proper size.
*/
tmp = cinfo.output_height;
cinfo.output_height = crop_height;
(*dest_mgr->start_output) (&cinfo, dest_mgr);
cinfo.output_height = tmp;
/* Process data */
if ((tmp = jpeg_skip_scanlines(&cinfo, crop_y)) != crop_y) {
fprintf(stderr, "%s: jpeg_skip_scanlines() returned %u rather than %u\n",
progname, tmp, crop_y);
exit(EXIT_FAILURE);
}
while (cinfo.output_scanline < crop_y + crop_height) {
num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
if ((tmp =
jpeg_skip_scanlines(&cinfo,
cinfo.output_height - crop_y - crop_height)) !=
cinfo.output_height - crop_y - crop_height) {
fprintf(stderr, "%s: jpeg_skip_scanlines() returned %u rather than %u\n",
progname, tmp, cinfo.output_height - crop_y - crop_height);
exit(EXIT_FAILURE);
}
/* Normal full-image decompress */
} else {
/* 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);
}
}
/* Hack: count final pass as done in case finish_output does an extra pass.
* The library won't have updated completed_passes.
*/
if (report || max_scans != 0)
progress.pub.completed_passes = progress.pub.total_passes;
if (icc_filename != NULL) {
FILE *icc_file;
JOCTET *icc_profile;
unsigned int icc_len;
if ((icc_file = fopen(icc_filename, WRITE_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, icc_filename);
exit(EXIT_FAILURE);
}
if (jpeg_read_icc_profile(&cinfo, &icc_profile, &icc_len)) {
if (fwrite(icc_profile, icc_len, 1, icc_file) < 1) {
fprintf(stderr, "%s: can't read ICC profile from %s\n", progname,
icc_filename);
free(icc_profile);
fclose(icc_file);
exit(EXIT_FAILURE);
}
free(icc_profile);
fclose(icc_file);
} else if (cinfo.err->msg_code != JWRN_BOGUS_ICC)
fprintf(stderr, "%s: no ICC profile data in JPEG file\n", progname);
}
/* Finish decompression and release memory.
* I must do it in this order because output module has allocated memory
* of lifespan JPOOL_IMAGE; it needs to finish before releasing memory.
*/
(*dest_mgr->finish_output) (&cinfo, dest_mgr);
(void)jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
/* Close files, if we opened them */
if (input_file != stdin)
fclose(input_file);
if (output_file != stdout)
fclose(output_file);
if (report || max_scans != 0)
end_progress_monitor((j_common_ptr)&cinfo);
if (memsrc)
free(inbuffer);
/* All done. */
exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);
return 0; /* suppress no-return-value warnings */
}

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<title>TurboJPEG: Data Structures</title>
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<!-- Generated by Doxygen 1.8.20 -->
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onmouseover="return searchBox.OnSearchSelectShow()"
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<div class="title">Data Structures</div> </div>
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<table class="directory">
<tr id="row_0_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structtjregion.html" target="_self">tjregion</a></td><td class="desc">Cropping region </td></tr>
<tr id="row_1_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structtjscalingfactor.html" target="_self">tjscalingfactor</a></td><td class="desc">Scaling factor </td></tr>
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</div><!-- directory -->
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<!-- start footer part -->
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div id="titlearea">
<table cellspacing="0" cellpadding="0">
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&#160;<span id="projectnumber">2.1.4</span>
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</table>
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<div class="qindex"><a class="qindex" href="#letter_t">t</a></div>
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<tr><td rowspan="2" valign="bottom"><a name="letter_t"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">&#160;&#160;t&#160;&#160;</div></td></tr></table>
</td>
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<td valign="top"><a class="el" href="structtjtransform.html">tjtransform</a>&#160;&#160;&#160;</td>
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/*
@licstart The following is the entire license notice for the JavaScript code in this file.
The MIT License (MIT)
Copyright (C) 1997-2020 by Dimitri van Heesch
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and associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@licend The above is the entire license notice for the JavaScript code in this file
*/
function toggleVisibility(linkObj)
{
var base = $(linkObj).attr('id');
var summary = $('#'+base+'-summary');
var content = $('#'+base+'-content');
var trigger = $('#'+base+'-trigger');
var src=$(trigger).attr('src');
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summary.show();
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content.show();
summary.hide();
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107
android/extern/libjpeg-turbo/doc/html/functions.html vendored
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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<meta name="generator" content="Doxygen 1.8.20"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>TurboJPEG: Data Fields</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
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<script type="text/javascript" src="search/search.js"></script>
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<div id="projectname">TurboJPEG
&#160;<span id="projectnumber">2.1.4</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.20 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
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<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
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</div>
<div class="contents">
<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#afd7fc262df33f741e120ef4183202ef5">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>
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</li>
<li>op
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</li>
<li>options
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</li>
<li>r
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</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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</small></address>
</body>
</html>

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including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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81
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android/extern/libjpeg-turbo/doc/html/search/all_4.html vendored
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@@ -1,36 +0,0 @@
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5
android/extern/libjpeg-turbo/doc/html/search/all_4.js vendored
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@@ -1,5 +0,0 @@
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36
android/extern/libjpeg-turbo/doc/html/search/all_5.html vendored
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@@ -1,36 +0,0 @@
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4
android/extern/libjpeg-turbo/doc/html/search/all_5.js vendored
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@@ -1,4 +0,0 @@
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36
android/extern/libjpeg-turbo/doc/html/search/all_6.html vendored
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@@ -1,36 +0,0 @@
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103
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@@ -1,103 +0,0 @@
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36
android/extern/libjpeg-turbo/doc/html/search/all_7.html vendored
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@@ -1,36 +0,0 @@
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document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
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});
/* @license-end */
--></script>
</div>
</body>
</html>

4
android/extern/libjpeg-turbo/doc/html/search/all_7.js vendored
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@@ -1,4 +0,0 @@
var searchData=
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36
android/extern/libjpeg-turbo/doc/html/search/all_8.html vendored
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@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
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<body class="SRPage">
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<div id="SRResults"></div>
<script type="text/javascript"><!--
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document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
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var elem = searchResults.NavNext(0);
if (elem) elem.focus();
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});
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--></script>
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4
android/extern/libjpeg-turbo/doc/html/search/all_8.js vendored
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@@ -1,4 +0,0 @@
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36
android/extern/libjpeg-turbo/doc/html/search/all_9.html vendored
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@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
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<body class="SRPage">
<div id="SRIndex">
<div class="SRStatus" id="Loading">Loading...</div>
<div id="SRResults"></div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
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/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
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if (elem) elem.focus();
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});
/* @license-end */
--></script>
</div>
</body>
</html>

4
android/extern/libjpeg-turbo/doc/html/search/all_9.js vendored
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@@ -1,4 +0,0 @@
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36
android/extern/libjpeg-turbo/doc/html/search/classes_0.html vendored
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@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html><head><title></title>
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<link rel="stylesheet" type="text/css" href="search.css"/>
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<body class="SRPage">
<div id="SRIndex">
<div class="SRStatus" id="Loading">Loading...</div>
<div id="SRResults"></div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
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<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
if (event.data == "take_focus") {
var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
</html>

6
android/extern/libjpeg-turbo/doc/html/search/classes_0.js vendored
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@@ -1,6 +0,0 @@
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android/extern/libjpeg-turbo/doc/html/search/close.svg vendored
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@@ -1,31 +0,0 @@
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android/extern/libjpeg-turbo/doc/html/search/enums_0.html vendored
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@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html><head><title></title>
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<link rel="stylesheet" type="text/css" href="search.css"/>
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/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
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var searchResults = new SearchResults("searchResults");
searchResults.Search();
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var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
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android/extern/libjpeg-turbo/doc/html/search/enums_0.js vendored
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android/extern/libjpeg-turbo/doc/html/search/enumvalues_0.html vendored
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@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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android/extern/libjpeg-turbo/doc/html/search/enumvalues_0.js vendored
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@@ -1,37 +0,0 @@
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['tjpf_5frgba_182',['TJPF_RGBA',['../group___turbo_j_p_e_g.html#ggac916144e26c3817ac514e64ae5d12e2aa88d2e88fab67f6503cf972e14851cc12',1,'turbojpeg.h']]],
['tjpf_5frgbx_183',['TJPF_RGBX',['../group___turbo_j_p_e_g.html#ggac916144e26c3817ac514e64ae5d12e2aa83973bebb7e2dc6fa8bae89ff3f42e01',1,'turbojpeg.h']]],
['tjpf_5funknown_184',['TJPF_UNKNOWN',['../group___turbo_j_p_e_g.html#ggac916144e26c3817ac514e64ae5d12e2aa84c1a6cead7952998e2fb895844a21ed',1,'turbojpeg.h']]],
['tjpf_5fxbgr_185',['TJPF_XBGR',['../group___turbo_j_p_e_g.html#ggac916144e26c3817ac514e64ae5d12e2aaf6603b27147de47e212e75dac027b2af',1,'turbojpeg.h']]],
['tjpf_5fxrgb_186',['TJPF_XRGB',['../group___turbo_j_p_e_g.html#ggac916144e26c3817ac514e64ae5d12e2aadae996905efcfa3b42a0bb3bea7f9d84',1,'turbojpeg.h']]],
['tjsamp_5f411_187',['TJSAMP_411',['../group___turbo_j_p_e_g.html#gga1d047060ea80bb9820d540bb928e9074a28ec62575e5ea295c3fde3001dc628e2',1,'turbojpeg.h']]],
['tjsamp_5f420_188',['TJSAMP_420',['../group___turbo_j_p_e_g.html#gga1d047060ea80bb9820d540bb928e9074a63085dbf683cfe39e513cdb6343e3737',1,'turbojpeg.h']]],
['tjsamp_5f422_189',['TJSAMP_422',['../group___turbo_j_p_e_g.html#gga1d047060ea80bb9820d540bb928e9074a136130902cc578f11f32429b59368404',1,'turbojpeg.h']]],
['tjsamp_5f440_190',['TJSAMP_440',['../group___turbo_j_p_e_g.html#gga1d047060ea80bb9820d540bb928e9074accf740e6f3aa6ba20ba922cad13cb974',1,'turbojpeg.h']]],
['tjsamp_5f444_191',['TJSAMP_444',['../group___turbo_j_p_e_g.html#gga1d047060ea80bb9820d540bb928e9074afb8da4f44197837bdec0a4f593dacae3',1,'turbojpeg.h']]],
['tjsamp_5fgray_192',['TJSAMP_GRAY',['../group___turbo_j_p_e_g.html#gga1d047060ea80bb9820d540bb928e9074a3f1c9504842ddc7a48d0f690754b6248',1,'turbojpeg.h']]],
['tjxop_5fhflip_193',['TJXOP_HFLIP',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866aa0df69776caa30f0fa28e26332d311ce',1,'turbojpeg.h']]],
['tjxop_5fnone_194',['TJXOP_NONE',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866aad88c0366cd3f7d0eac9d7a3fa1c2c27',1,'turbojpeg.h']]],
['tjxop_5frot180_195',['TJXOP_ROT180',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866a140952eb8dd0300accfcc22726d69692',1,'turbojpeg.h']]],
['tjxop_5frot270_196',['TJXOP_ROT270',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866a3064ee5dfb7f032df332818587567a08',1,'turbojpeg.h']]],
['tjxop_5frot90_197',['TJXOP_ROT90',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866a43b2bbb23bc4bd548422d43fbe9af128',1,'turbojpeg.h']]],
['tjxop_5ftranspose_198',['TJXOP_TRANSPOSE',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866a31060aed199f886afdd417f80499c32d',1,'turbojpeg.h']]],
['tjxop_5ftransverse_199',['TJXOP_TRANSVERSE',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866af3b14d488aea6ece9e5b3df73a74d6a4',1,'turbojpeg.h']]],
['tjxop_5fvflip_200',['TJXOP_VFLIP',['../group___turbo_j_p_e_g.html#gga2de531af4e7e6c4f124908376b354866a324eddfbec53b7e691f61e56929d0d5d',1,'turbojpeg.h']]]
];

36
android/extern/libjpeg-turbo/doc/html/search/functions_0.html vendored
View File

@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
<script type="text/javascript" src="functions_0.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"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
createResults();
/* @license-end */
--></script>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
if (event.data == "take_focus") {
var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
</html>

31
android/extern/libjpeg-turbo/doc/html/search/functions_0.js vendored
View File

@@ -1,31 +0,0 @@
var searchData=
[
['tjalloc_114',['tjAlloc',['../group___turbo_j_p_e_g.html#gaec627dd4c5f30b7a775a7aea3bec5d83',1,'turbojpeg.h']]],
['tjbufsize_115',['tjBufSize',['../group___turbo_j_p_e_g.html#ga67ac12fee79073242cb216e07c9f1f90',1,'turbojpeg.h']]],
['tjbufsizeyuv2_116',['tjBufSizeYUV2',['../group___turbo_j_p_e_g.html#ga5e5aac9e8bcf17049279301e2466474c',1,'turbojpeg.h']]],
['tjcompress2_117',['tjCompress2',['../group___turbo_j_p_e_g.html#gafbdce0112fd78fd38efae841443a9bcf',1,'turbojpeg.h']]],
['tjcompressfromyuv_118',['tjCompressFromYUV',['../group___turbo_j_p_e_g.html#gab40f5096a72fd7e5bda9d6b58fa37e2e',1,'turbojpeg.h']]],
['tjcompressfromyuvplanes_119',['tjCompressFromYUVPlanes',['../group___turbo_j_p_e_g.html#ga29ec5dfbd2d84b8724e951d6fa0d5d9e',1,'turbojpeg.h']]],
['tjdecodeyuv_120',['tjDecodeYUV',['../group___turbo_j_p_e_g.html#ga97c2cedc1e2bade15a84164c94e503c1',1,'turbojpeg.h']]],
['tjdecodeyuvplanes_121',['tjDecodeYUVPlanes',['../group___turbo_j_p_e_g.html#ga10e837c07fa9d25770565b237d3898d9',1,'turbojpeg.h']]],
['tjdecompress2_122',['tjDecompress2',['../group___turbo_j_p_e_g.html#gae9eccef8b682a48f43a9117c231ed013',1,'turbojpeg.h']]],
['tjdecompressheader3_123',['tjDecompressHeader3',['../group___turbo_j_p_e_g.html#ga0595681096bba7199cc6f3533cb25f77',1,'turbojpeg.h']]],
['tjdecompresstoyuv2_124',['tjDecompressToYUV2',['../group___turbo_j_p_e_g.html#ga5a3093e325598c17a9f004323af6fafa',1,'turbojpeg.h']]],
['tjdecompresstoyuvplanes_125',['tjDecompressToYUVPlanes',['../group___turbo_j_p_e_g.html#gaa59f901a5258ada5bd0185ad59368540',1,'turbojpeg.h']]],
['tjdestroy_126',['tjDestroy',['../group___turbo_j_p_e_g.html#ga75f355fa27225ba1a4ee392c852394d2',1,'turbojpeg.h']]],
['tjencodeyuv3_127',['tjEncodeYUV3',['../group___turbo_j_p_e_g.html#ga5d619e0a02b71e05a8dffb764f6d7a64',1,'turbojpeg.h']]],
['tjencodeyuvplanes_128',['tjEncodeYUVPlanes',['../group___turbo_j_p_e_g.html#gae2d04c72457fe7f4d60cf78ab1b1feb1',1,'turbojpeg.h']]],
['tjfree_129',['tjFree',['../group___turbo_j_p_e_g.html#gaea863d2da0cdb609563aabdf9196514b',1,'turbojpeg.h']]],
['tjgeterrorcode_130',['tjGetErrorCode',['../group___turbo_j_p_e_g.html#ga414feeffbf860ebd31c745df203de410',1,'turbojpeg.h']]],
['tjgeterrorstr2_131',['tjGetErrorStr2',['../group___turbo_j_p_e_g.html#ga1ead8574f9f39fbafc6b497124e7aafa',1,'turbojpeg.h']]],
['tjgetscalingfactors_132',['tjGetScalingFactors',['../group___turbo_j_p_e_g.html#ga193d0977b3b9966d53a6c402e90899b1',1,'turbojpeg.h']]],
['tjinitcompress_133',['tjInitCompress',['../group___turbo_j_p_e_g.html#ga9d63a05fc6d813f4aae06107041a37e8',1,'turbojpeg.h']]],
['tjinitdecompress_134',['tjInitDecompress',['../group___turbo_j_p_e_g.html#ga52300eac3f3d9ef4bab303bc244f62d3',1,'turbojpeg.h']]],
['tjinittransform_135',['tjInitTransform',['../group___turbo_j_p_e_g.html#ga928beff6ac248ceadf01089fc6b41957',1,'turbojpeg.h']]],
['tjloadimage_136',['tjLoadImage',['../group___turbo_j_p_e_g.html#gaffbd83c375e79f5db4b5c5d8ad4466e7',1,'turbojpeg.h']]],
['tjplaneheight_137',['tjPlaneHeight',['../group___turbo_j_p_e_g.html#ga1a209696c6a80748f20e134b3c64789f',1,'turbojpeg.h']]],
['tjplanesizeyuv_138',['tjPlaneSizeYUV',['../group___turbo_j_p_e_g.html#gab4ab7b24f6e797d79abaaa670373961d',1,'turbojpeg.h']]],
['tjplanewidth_139',['tjPlaneWidth',['../group___turbo_j_p_e_g.html#ga63fb66bb1e36c74008c4634360becbb1',1,'turbojpeg.h']]],
['tjsaveimage_140',['tjSaveImage',['../group___turbo_j_p_e_g.html#ga6f445b22d8933ae4815b3370a538d879',1,'turbojpeg.h']]],
['tjtransform_141',['tjTransform',['../group___turbo_j_p_e_g.html#ga9cb8abf4cc91881e04a0329b2270be25',1,'turbojpeg.h']]]
];

36
android/extern/libjpeg-turbo/doc/html/search/groups_0.html vendored
View File

@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
<script type="text/javascript" src="groups_0.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"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
createResults();
/* @license-end */
--></script>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
if (event.data == "take_focus") {
var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
</html>

4
android/extern/libjpeg-turbo/doc/html/search/groups_0.js vendored
View File

@@ -1,4 +0,0 @@
var searchData=
[
['turbojpeg_201',['TurboJPEG',['../group___turbo_j_p_e_g.html',1,'']]]
];

74
android/extern/libjpeg-turbo/doc/html/search/mag_sel.svg vendored
View File

@@ -1,74 +0,0 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created with Inkscape (http://www.inkscape.org/) -->
<svg
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:cc="http://creativecommons.org/ns#"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns="http://www.w3.org/2000/svg"
xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
version="1.1"
id="svg2"
width="20"
height="19"
viewBox="0 0 20 19"
sodipodi:docname="mag_sel.svg"
inkscape:version="0.92.5 (2060ec1f9f, 2020-04-08)">
<metadata
id="metadata8">
<rdf:RDF>
<cc:Work
rdf:about="">
<dc:format>image/svg+xml</dc:format>
<dc:type
rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
<dc:title></dc:title>
</cc:Work>
</rdf:RDF>
</metadata>
<defs
id="defs6" />
<sodipodi:namedview
pagecolor="#ffffff"
bordercolor="#666666"
borderopacity="1"
objecttolerance="10"
gridtolerance="10"
guidetolerance="10"
inkscape:pageopacity="0"
inkscape:pageshadow="2"
inkscape:window-width="1920"
inkscape:window-height="2096"
id="namedview4"
showgrid="false"
fit-margin-top="0"
fit-margin-left="0"
fit-margin-right="0"
fit-margin-bottom="0"
inkscape:zoom="32"
inkscape:cx="5.9792688"
inkscape:cy="1.1436277"
inkscape:window-x="1920"
inkscape:window-y="27"
inkscape:window-maximized="0"
inkscape:current-layer="svg2" />
<circle
style="fill:#000000;fill-opacity:0;stroke:#656565;stroke-width:1.4;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
id="path4611"
cx="5.5"
cy="8.5"
r="3.5" />
<path
style="fill:#656565;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
d="M 11,7 13.5,10 16,7 Z"
id="path4609"
inkscape:connector-curvature="0"
sodipodi:nodetypes="cccc" />
<path
style="fill:none;stroke:#656565;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
d="m 8.1085854,11.109059 2.7823556,2.782356"
id="path4630"
inkscape:connector-curvature="0" />
</svg>
Side by Side

Before

Width:  |  Height:  |  Size: 2.3 KiB

12
android/extern/libjpeg-turbo/doc/html/search/nomatches.html vendored
View File

@@ -1,12 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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>

255
android/extern/libjpeg-turbo/doc/html/search/search.css vendored
View File

@@ -1,255 +0,0 @@
/*---------------- Search Box */
#MSearchBox {
white-space : nowrap;
background: white;
border-radius: 0.65em;
box-shadow: inset 0.5px 0.5px 3px 0px #555;
z-index: 102;
}
#MSearchBox .left {
display: inline-block;
vertical-align: middle;
height: 1.4em;
}
#MSearchSelect {
display: inline-block;
vertical-align: middle;
height: 1.4em;
padding: 0 0 0 0.3em;
margin: 0;
}
#MSearchField {
display: inline-block;
vertical-align: middle;
width: 7.5em;
height: 1.1em;
margin: 0 0.15em;
padding: 0;
line-height: 1em;
border:none;
color: #909090;
outline: none;
font-family: Arial, Verdana, sans-serif;
-webkit-border-radius: 0px;
border-radius: 0px;
background: none;
}
#MSearchBox .right {
display: inline-block;
vertical-align: middle;
width: 1.4em;
height: 1.4em;
}
#MSearchClose {
display: none;
font-size: inherit;
background : none;
border: none;
margin: 0;
padding: 0;
outline: none;
}
#MSearchCloseImg {
height: 1.4em;
padding: 0.3em;
margin: 0;
}
.MSearchBoxActive #MSearchField {
color: #000000;
}
#main-menu > li:last-child {
/* This <li> object is the parent of the search bar */
display: flex;
justify-content: center;
align-items: center;
height: 36px;
margin-right: 1em;
}
/*---------------- Search filter selection */
#MSearchSelectWindow {
display: none;
position: absolute;
left: 0; top: 0;
border: 1px solid #90A5CE;
background-color: #F9FAFC;
z-index: 10001;
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;
z-index:10000;
}
/* ----------------------------------- */
#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;
}

814
android/extern/libjpeg-turbo/doc/html/search/search.js vendored
View File

@@ -1,814 +0,0 @@
/*
@licstart The following is the entire license notice for the JavaScript code in this file.
The MIT License (MIT)
Copyright (C) 1997-2020 by Dimitri van Heesch
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@licend The above is the entire license notice for the JavaScript code in this file
*/
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\u0080-\uFFFF]/))
{
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
{
window.frames.MSearchResults.postMessage("take_focus", "*");
}
}
else if (e.keyCode==27) // Escape out of the search field
{
this.DOMSearchField().blur();
this.DOMPopupSearchResultsWindow().style.display = 'none';
this.DOMSearchClose().style.display = 'none';
this.lastSearchValue = '';
this.Activate(false);
return;
}
// strip whitespaces
var searchValue = this.DOMSearchField().value.replace(/ +/g, "");
if (searchValue != this.lastSearchValue) // search value has changed
{
if (searchValue != "") // non-empty search
{
// set timer for search update
this.keyTimeout = setTimeout(this.name + '.Search()',
this.keyTimeoutLength);
}
else // empty search field
{
this.DOMPopupSearchResultsWindow().style.display = 'none';
this.DOMSearchClose().style.display = 'none';
this.lastSearchValue = '';
}
}
}
this.SelectItemCount = function(id)
{
var count=0;
var win=this.DOMSearchSelectWindow();
for (i=0;i<win.childNodes.length;i++)
{
var child = win.childNodes[i]; // get span within a
if (child.className=='SelectItem')
{
count++;
}
}
return count;
}
this.SelectItemSet = function(id)
{
var i,j=0;
var win=this.DOMSearchSelectWindow();
for (i=0;i<win.childNodes.length;i++)
{
var child = win.childNodes[i]; // get span within a
if (child.className=='SelectItem')
{
var node = child.firstChild;
if (j==id)
{
node.innerHTML='&#8226;';
}
else
{
node.innerHTML='&#160;';
}
j++;
}
}
}
// Called when an search filter selection is made.
// set item with index id as the active item
this.OnSelectItem = function(id)
{
this.searchIndex = id;
this.SelectItemSet(id);
var searchValue = this.DOMSearchField().value.replace(/ +/g, "");
if (searchValue!="" && this.searchActive) // something was found -> do a search
{
this.Search();
}
}
this.OnSearchSelectKey = function(evt)
{
var e = (evt) ? evt : window.event; // for IE
if (e.keyCode==40 && this.searchIndex<this.SelectItemCount()) // Down
{
this.searchIndex++;
this.OnSelectItem(this.searchIndex);
}
else if (e.keyCode==38 && this.searchIndex>0) // Up
{
this.searchIndex--;
this.OnSelectItem(this.searchIndex);
}
else if (e.keyCode==13 || e.keyCode==27)
{
this.OnSelectItem(this.searchIndex);
this.CloseSelectionWindow();
this.DOMSearchField().focus();
}
return false;
}
// --------- Actions
// Closes the results window.
this.CloseResultsWindow = function()
{
this.DOMPopupSearchResultsWindow().style.display = 'none';
this.DOMSearchClose().style.display = 'none';
this.Activate(false);
}
this.CloseSelectionWindow = function()
{
this.DOMSearchSelectWindow().style.display = 'none';
}
// Performs a search.
this.Search = function()
{
this.keyTimeout = 0;
// strip leading whitespace
var searchValue = this.DOMSearchField().value.replace(/^ +/, "");
var code = searchValue.toLowerCase().charCodeAt(0);
var idxChar = searchValue.substr(0, 1).toLowerCase();
if ( 0xD800 <= code && code <= 0xDBFF && searchValue > 1) // surrogate pair
{
idxChar = searchValue.substr(0, 2);
}
var resultsPage;
var resultsPageWithSearch;
var hasResultsPage;
var idx = indexSectionsWithContent[this.searchIndex].indexOf(idxChar);
if (idx!=-1)
{
var hexCode=idx.toString(16);
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-block';
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);
}
}
function init_search()
{
var results = document.getElementById("MSearchSelectWindow");
for (var key in indexSectionLabels)
{
var link = document.createElement('a');
link.setAttribute('class','SelectItem');
link.setAttribute('onclick','searchBox.OnSelectItem('+key+')');
link.href='javascript:void(0)';
link.innerHTML='<span class="SelectionMark">&#160;</span>'+indexSectionLabels[key];
results.appendChild(link);
}
searchBox.OnSelectItem(0);
}
/* @license-end */

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android/extern/libjpeg-turbo/doc/html/search/searchdata.js vendored
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var indexSectionsWithContent =
{
0: "cdhnortwxy",
1: "t",
2: "t",
3: "cdhnortwxy",
4: "t",
5: "t",
6: "t",
7: "t"
};
var indexSectionNames =
{
0: "all",
1: "classes",
2: "functions",
3: "variables",
4: "typedefs",
5: "enums",
6: "enumvalues",
7: "groups"
};
var indexSectionLabels =
{
0: "All",
1: "Data Structures",
2: "Functions",
3: "Variables",
4: "Typedefs",
5: "Enumerations",
6: "Enumerator",
7: "Modules"
};

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
<script type="text/javascript" src="typedefs_0.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"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
createResults();
/* @license-end */
--></script>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
if (event.data == "take_focus") {
var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
</html>

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var searchData=
[
['tjhandle_160',['tjhandle',['../group___turbo_j_p_e_g.html#ga758d2634ecb4949de7815cba621f5763',1,'turbojpeg.h']]],
['tjtransform_161',['tjtransform',['../group___turbo_j_p_e_g.html#ga504805ec0161f1b505397ca0118bf8fd',1,'turbojpeg.h']]]
];

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
<script type="text/javascript" src="variables_0.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"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
createResults();
/* @license-end */
--></script>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
if (event.data == "take_focus") {
var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
</html>

4
android/extern/libjpeg-turbo/doc/html/search/variables_0.js vendored
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@@ -1,4 +0,0 @@
var searchData=
[
['customfilter_142',['customFilter',['../structtjtransform.html#afd7fc262df33f741e120ef4183202ef5',1,'tjtransform']]]
];

36
android/extern/libjpeg-turbo/doc/html/search/variables_1.html vendored
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@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
<script type="text/javascript" src="variables_1.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"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
createResults();
/* @license-end */
--></script>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
if (event.data == "take_focus") {
var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
</html>

5
android/extern/libjpeg-turbo/doc/html/search/variables_1.js vendored
View File

@@ -1,5 +0,0 @@
var searchData=
[
['data_143',['data',['../structtjtransform.html#a688fe8f1a8ecc12a538d9e561cf338e3',1,'tjtransform']]],
['denom_144',['denom',['../structtjscalingfactor.html#aefbcdf3e9e62274b2d312c695f133ce3',1,'tjscalingfactor']]]
];

36
android/extern/libjpeg-turbo/doc/html/search/variables_2.html vendored
View File

@@ -1,36 +0,0 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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 1.8.20"/>
<link rel="stylesheet" type="text/css" href="search.css"/>
<script type="text/javascript" src="variables_2.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"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
createResults();
/* @license-end */
--></script>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
<script type="text/javascript"><!--
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
document.getElementById("Loading").style.display="none";
document.getElementById("NoMatches").style.display="none";
var searchResults = new SearchResults("searchResults");
searchResults.Search();
window.addEventListener("message", function(event) {
if (event.data == "take_focus") {
var elem = searchResults.NavNext(0);
if (elem) elem.focus();
}
});
/* @license-end */
--></script>
</div>
</body>
</html>

4
android/extern/libjpeg-turbo/doc/html/search/variables_2.js vendored
View File

@@ -1,4 +0,0 @@
var searchData=
[
['h_145',['h',['../structtjregion.html#aecefc45a26f4d8b60dd4d825c1710115',1,'tjregion']]]
];

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