Skip to content

Instantly share code, notes, and snippets.

@skeeet
Forked from eminarcissus/libjpeg.sh
Created May 20, 2017
Embed
What would you like to do?
Download & Compile Libjpeg for iOS (all architectures)
# Builds a Libjpeg framework for the iPhone and the iPhone Simulator.
# Creates a set of universal libraries that can be used on an iPhone and in the
# iPhone simulator. Then creates a pseudo-framework to make using libjpeg in Xcode
# less painful.
#
# To configure the script, define:
# IPHONE_SDKVERSION: iPhone SDK version (e.g. 8.1)
#
# Then go get the source tar.bz of the libjpeg you want to build, shove it in the
# same directory as this script, and run "./libjpeg.sh". Grab a cuppa. And voila.
#===============================================================================
: ${LIB_VERSION:=8d}
# Current iPhone SDK
: ${IPHONE_SDKVERSION:=`xcodebuild -showsdks | grep iphoneos | egrep "[[:digit:]]+\.[[:digit:]]+" -o | tail -1`}
# Specific iPhone SDK
# : ${IPHONE_SDKVERSION:=8.1}
: ${XCODE_ROOT:=`xcode-select -print-path`}
: ${TARBALLDIR:=`pwd`}
: ${SRCDIR:=`pwd`/src}
: ${IOSBUILDDIR:=`pwd`/ios/build}
: ${OSXBUILDDIR:=`pwd`/osx/build}
: ${PREFIXDIR:=`pwd`/ios/prefix}
: ${IOSFRAMEWORKDIR:=`pwd`/ios/framework}
: ${OSXFRAMEWORKDIR:=`pwd`/osx/framework}
LIB_TARBALL=$TARBALLDIR/jpegsrc.v$LIB_VERSION.tar.gz
LIB_SRC=$SRCDIR/jpeg-${LIB_VERSION}
#===============================================================================
ARM_DEV_CMD="xcrun --sdk iphoneos"
SIM_DEV_CMD="xcrun --sdk iphonesimulator"
#===============================================================================
# Functions
#===============================================================================
abort()
{
echo
echo "Aborted: $@"
exit 1
}
doneSection()
{
echo
echo "================================================================="
echo "Done"
echo
}
#===============================================================================
cleanEverythingReadyToStart()
{
echo Cleaning everything before we start to build...
rm -rf iphone-build iphonesim-build
rm -rf $IOSBUILDDIR
rm -rf $PREFIXDIR
rm -rf $IOSFRAMEWORKDIR/$FRAMEWORK_NAME.framework
doneSection
}
#===============================================================================
downloadLibjpeg()
{
if [ ! -s $LIB_TARBALL ]; then
echo "Downloading libjpeg ${LIB_VERSION}"
curl -L -o $LIB_TARBALL http://www.ijg.org/files/jpegsrc.v${LIB_VERSION}.tar.gz
fi
doneSection
}
#===============================================================================
unpackLibjpeg()
{
[ -f "$LIB_TARBALL" ] || abort "Source tarball missing."
echo Unpacking libjpeg into $SRCDIR...
[ -d $SRCDIR ] || mkdir -p $SRCDIR
[ -d $LIB_SRC ] || ( cd $SRCDIR; tar xfj $LIB_TARBALL )
[ -d $LIB_SRC ] && echo " ...unpacked as $LIB_SRC"
doneSection
}
#===============================================================================
buildLibjpegForIPhoneOS()
{
export CC=$XCODE_ROOT/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
export CC_BASENAME=clang
export CXX=$XCODE_ROOT/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++
export CXX_BASENAME=clang++
echo Building Libjpeg for iPhoneSimulator
mkdir -p $LIB_SRC/iphonesim-build
cd $LIB_SRC/iphonesim-build
export CFLAGS="-O3 -arch i386 -arch x86_64 -isysroot $XCODE_ROOT/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator${IPHONE_SDKVERSION}.sdk -mios-simulator-version-min=${IPHONE_SDKVERSION} -Wno-error-implicit-function-declaration"
../configure --prefix=$PREFIXDIR/iphonesim-build --disable-dependency-tracking --enable-static=yes --enable-shared=no --host=i686-pc-none
make
make install
doneSection
echo Building Libjpeg for iPhone
mkdir -p $LIB_SRC/iphone-build
cd $LIB_SRC/iphone-build
export CFLAGS="-O3 -arch armv7 -arch armv7s -arch arm64 -isysroot $XCODE_ROOT/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${IPHONE_SDKVERSION}.sdk -mios-version-min=${IPHONE_SDKVERSION}"
../configure --host=arm-apple-darwin --prefix=$PREFIXDIR/iphone-build --disable-dependency-tracking --enable-static=yes --enable-shared=no
make
make install
doneSection
}
#===============================================================================
scrunchAllLibsTogetherInOneLibPerPlatform()
{
cd $PREFIXDIR
# iOS Device
mkdir -p $IOSBUILDDIR/armv7
mkdir -p $IOSBUILDDIR/armv7s
mkdir -p $IOSBUILDDIR/arm64
# iOS Simulator
mkdir -p $IOSBUILDDIR/i386
mkdir -p $IOSBUILDDIR/x86_64
echo Splitting all existing fat binaries...
$ARM_DEV_CMD lipo "iphone-build/lib/libjpeg.a" -thin armv7 -o $IOSBUILDDIR/armv7/libjpeg.a
$ARM_DEV_CMD lipo "iphone-build/lib/libjpeg.a" -thin armv7s -o $IOSBUILDDIR/armv7s/libjpeg.a
$ARM_DEV_CMD lipo "iphone-build/lib/libjpeg.a" -thin arm64 -o $IOSBUILDDIR/arm64/libjpeg.a
$SIM_DEV_CMD lipo "iphonesim-build/lib/libjpeg.a" -thin i386 -o $IOSBUILDDIR/i386/libjpeg.a
$SIM_DEV_CMD lipo "iphonesim-build/lib/libjpeg.a" -thin x86_64 -o $IOSBUILDDIR/x86_64/libjpeg.a
}
#===============================================================================
buildFramework()
{
: ${1:?}
FRAMEWORKDIR=$1
BUILDDIR=$2
VERSION_TYPE=Alpha
FRAMEWORK_NAME=libjpeg
FRAMEWORK_VERSION=A
FRAMEWORK_CURRENT_VERSION=$LIB_VERSION
FRAMEWORK_COMPATIBILITY_VERSION=$LIB_VERSION
FRAMEWORK_BUNDLE=$FRAMEWORKDIR/$FRAMEWORK_NAME.framework
echo "Framework: Building $FRAMEWORK_BUNDLE from $BUILDDIR..."
rm -rf $FRAMEWORK_BUNDLE
echo "Framework: Setting up directories..."
mkdir -p $FRAMEWORK_BUNDLE
mkdir -p $FRAMEWORK_BUNDLE/Versions
mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION
mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/Resources
mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/Headers
mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/Documentation
echo "Framework: Creating symlinks..."
ln -s $FRAMEWORK_VERSION $FRAMEWORK_BUNDLE/Versions/Current
ln -s Versions/Current/Headers $FRAMEWORK_BUNDLE/Headers
ln -s Versions/Current/Resources $FRAMEWORK_BUNDLE/Resources
ln -s Versions/Current/Documentation $FRAMEWORK_BUNDLE/Documentation
ln -s Versions/Current/$FRAMEWORK_NAME $FRAMEWORK_BUNDLE/$FRAMEWORK_NAME
FRAMEWORK_INSTALL_NAME=$FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/$FRAMEWORK_NAME
echo "Lipoing library into $FRAMEWORK_INSTALL_NAME..."
$ARM_DEV_CMD lipo -create $BUILDDIR/*/libjpeg.a -o "$FRAMEWORK_INSTALL_NAME" || abort "Lipo $1 failed"
echo "Framework: Copying includes..."
cp -r $PREFIXDIR/include/libjpeg/* $FRAMEWORK_BUNDLE/Headers/
echo "Framework: Creating plist..."
cat > $FRAMEWORK_BUNDLE/Resources/Info.plist <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>English</string>
<key>CFBundleExecutable</key>
<string>${FRAMEWORK_NAME}</string>
<key>CFBundleIdentifier</key>
<string>org.libjpeg</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundlePackageType</key>
<string>FMWK</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>${FRAMEWORK_CURRENT_VERSION}</string>
</dict>
</plist>
EOF
doneSection
}
#===============================================================================
# Execution starts here
#===============================================================================
mkdir -p $IOSBUILDDIR
# cleanEverythingReadyToStart #may want to comment if repeatedly running during dev
echo "LIB_VERSION: $LIB_VERSION"
echo "LIB_SRC: $LIB_SRC"
echo "IOSBUILDDIR: $IOSBUILDDIR"
echo "PREFIXDIR: $PREFIXDIR"
echo "IOSFRAMEWORKDIR: $IOSFRAMEWORKDIR"
echo "IPHONE_SDKVERSION: $IPHONE_SDKVERSION"
echo "XCODE_ROOT: $XCODE_ROOT"
echo
downloadLibjpeg
unpackLibjpeg
buildLibjpegForIPhoneOS
scrunchAllLibsTogetherInOneLibPerPlatform
buildFramework $IOSFRAMEWORKDIR $IOSBUILDDIR
echo "Completed successfully"
#===============================================================================
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment