1#!/bin/bash 2# 3# This script generates 'WebP.xcframework', 'WebPDecoder.xcframework', 4# 'WebPDemux.xcframework' and 'WebPMux.xcframework'. 5# An iOS, Mac or Mac Catalyst app can decode WebP images by including 6# 'WebPDecoder.xcframework' and both encode and decode WebP images by including 7# 'WebP.xcframework'. 8# 9# Run ./xcframeworkbuild.sh to generate the frameworks under the current 10# directory (the previous build will be erased if it exists). 11# 12 13set -e 14 15# Set these variables based on the desired minimum deployment target. 16readonly IOS_MIN_VERSION=6.0 17readonly MACOSX_MIN_VERSION=10.15 18readonly MACOSX_CATALYST_MIN_VERSION=13.0 19 20# Extract Xcode version. 21readonly XCODE=$(xcodebuild -version | grep Xcode | cut -d " " -f2) 22if [[ -z "${XCODE}" ]] || [[ "${XCODE%%.*}" -lt 11 ]]; then 23 echo "Xcode 11.0 or higher is required!" 24 exit 1 25fi 26 27# Extract the latest SDK version from the final field of the form: iphoneosX.Y 28# / macosxX.Y 29readonly SDK=($( 30 xcodebuild -showsdks \ 31 | grep iphoneos | sort | tail -n 1 | awk '{print substr($NF, 9)}' 32 xcodebuild -showsdks \ 33 | grep macosx | sort | tail -n 1 | awk '{print substr($NF, 7)}' 34)) 35readonly IOS=0 36readonly MACOS=1 37readonly IOS_SIMULATOR=2 38readonly MACOS_CATALYST=3 39readonly NUM_PLATFORMS=4 40 41readonly OLDPATH=${PATH} 42 43# Names should be of the form '<platform>-[<variant>-]<architecture>'. 44PLATFORMS[$IOS]="iPhoneOS-armv7 iPhoneOS-armv7s iPhoneOS-arm64" 45PLATFORMS[$IOS_SIMULATOR]="iPhoneSimulator-i386 iPhoneSimulator-x86_64" 46PLATFORMS[$MACOS]="MacOSX-x86_64" 47PLATFORMS[$MACOS_CATALYST]="MacOSX-Catalyst-x86_64" 48if [[ "${XCODE%%.*}" -ge 12 ]]; then 49 PLATFORMS[$MACOS]+=" MacOSX-arm64" 50 PLATFORMS[$MACOS_CATALYST]+=" MacOSX-Catalyst-arm64" 51 PLATFORMS[$IOS_SIMULATOR]+=" iPhoneSimulator-arm64" 52elif [[ "${XCODE%%.*}" -eq 11 ]]; then 53 cat << EOF 54WARNING: Xcode 12.0 or higher is required to build targets for 55WARNING: Apple Silicon (arm64). The XCFrameworks generated with Xcode 11 will 56WARNING: contain libraries for MacOS & Catalyst supporting x86_64 only. 57WARNING: The build will continue in 5 seconds... 58EOF 59 sleep 5 60else 61 echo "Xcode 11.0 or higher is required!" 62 exit 1 63fi 64readonly PLATFORMS 65readonly SRCDIR=$(dirname $0) 66readonly TOPDIR=$(pwd) 67readonly BUILDDIR="${TOPDIR}/xcframeworkbuild" 68readonly TARGETDIR="${TOPDIR}/WebP.xcframework" 69readonly DECTARGETDIR="${TOPDIR}/WebPDecoder.xcframework" 70readonly MUXTARGETDIR="${TOPDIR}/WebPMux.xcframework" 71readonly DEMUXTARGETDIR="${TOPDIR}/WebPDemux.xcframework" 72readonly DEVELOPER=$(xcode-select --print-path) 73readonly DEVROOT="${DEVELOPER}/Toolchains/XcodeDefault.xctoolchain" 74readonly PLATFORMSROOT="${DEVELOPER}/Platforms" 75readonly LIPO=$(xcrun -sdk iphoneos${SDK[$IOS]} -find lipo) 76 77if [[ -z "${SDK[$IOS]}" ]] || [[ ${SDK[$IOS]%%.*} -lt 8 ]]; then 78 echo "iOS SDK version 8.0 or higher is required!" 79 exit 1 80fi 81 82echo "Xcode Version: ${XCODE}" 83echo "iOS SDK Version: ${SDK[$IOS]}" 84echo "MacOS SDK Version: ${SDK[$MACOS]}" 85 86if [[ -e "${BUILDDIR}" || -e "${TARGETDIR}" || -e "${DECTARGETDIR}" \ 87 || -e "${MUXTARGETDIR}" || -e "${DEMUXTARGETDIR}" ]]; then 88 cat << EOF 89WARNING: The following directories will be deleted: 90WARNING: ${BUILDDIR} 91WARNING: ${TARGETDIR} 92WARNING: ${DECTARGETDIR} 93WARNING: ${MUXTARGETDIR} 94WARNING: ${DEMUXTARGETDIR} 95WARNING: The build will continue in 5 seconds... 96EOF 97 sleep 5 98fi 99rm -rf ${BUILDDIR} ${TARGETDIR} ${DECTARGETDIR} \ 100 ${MUXTARGETDIR} ${DEMUXTARGETDIR} 101 102if [[ ! -e ${SRCDIR}/configure ]]; then 103 if ! (cd ${SRCDIR} && sh autogen.sh); then 104 cat << EOF 105Error creating configure script! 106This script requires the autoconf/automake and libtool to build. MacPorts or 107Homebrew can be used to obtain these: 108http://www.macports.org/install.php 109https://brew.sh/ 110EOF 111 exit 1 112 fi 113fi 114 115for (( i = 0; i < $NUM_PLATFORMS; ++i )); do 116 LIBLIST=() 117 DECLIBLIST=() 118 MUXLIBLIST=() 119 DEMUXLIBLIST=() 120 121 for PLATFORM in ${PLATFORMS[$i]}; do 122 ROOTDIR="${BUILDDIR}/${PLATFORM}" 123 mkdir -p "${ROOTDIR}" 124 125 ARCH="${PLATFORM##*-}" 126 case "${PLATFORM}" in 127 iPhone*) 128 sdk="${SDK[$IOS]}" 129 ;; 130 MacOS*) 131 sdk="${SDK[$MACOS]}" 132 ;; 133 *) 134 echo "Unrecognized platform: ${PLATFORM}!" 135 exit 1 136 ;; 137 esac 138 139 SDKROOT="${PLATFORMSROOT}/${PLATFORM%%-*}.platform/" 140 SDKROOT+="Developer/SDKs/${PLATFORM%%-*}${sdk}.sdk/" 141 CFLAGS="-pipe -isysroot ${SDKROOT} -O3 -DNDEBUG" 142 case "${PLATFORM}" in 143 iPhone*) 144 CFLAGS+=" -fembed-bitcode" 145 CFLAGS+=" -target ${ARCH}-apple-ios${IOS_MIN_VERSION}" 146 [[ "${PLATFORM}" == *Simulator* ]] && CFLAGS+="-simulator" 147 ;; 148 MacOSX-Catalyst*) 149 CFLAGS+=" -target" 150 CFLAGS+=" ${ARCH}-apple-ios${MACOSX_CATALYST_MIN_VERSION}-macabi" 151 ;; 152 MacOSX*) 153 CFLAGS+=" -mmacosx-version-min=${MACOSX_MIN_VERSION}" 154 ;; 155 esac 156 157 set -x 158 export PATH="${DEVROOT}/usr/bin:${OLDPATH}" 159 ${SRCDIR}/configure --host=${ARCH/arm64/aarch64}-apple-darwin \ 160 --build=$(${SRCDIR}/config.guess) \ 161 --prefix=${ROOTDIR} \ 162 --disable-shared --enable-static \ 163 --enable-libwebpdecoder --enable-swap-16bit-csp \ 164 --enable-libwebpmux \ 165 CC="clang -arch ${ARCH}" \ 166 CFLAGS="${CFLAGS}" 167 set +x 168 169 # run make only in the src/ directory to create libwebp.a/libwebpdecoder.a 170 cd src/ 171 make V=0 172 make install 173 174 LIBLIST+=("${ROOTDIR}/lib/libwebp.a") 175 DECLIBLIST+=("${ROOTDIR}/lib/libwebpdecoder.a") 176 MUXLIBLIST+=("${ROOTDIR}/lib/libwebpmux.a") 177 DEMUXLIBLIST+=("${ROOTDIR}/lib/libwebpdemux.a") 178 # xcodebuild requires a directory for the -headers option, these will match 179 # for all builds. 180 make install-data DESTDIR="${ROOTDIR}/lib-headers" 181 make install-commonHEADERS DESTDIR="${ROOTDIR}/dec-headers" 182 make -C demux install-data DESTDIR="${ROOTDIR}/demux-headers" 183 make -C mux install-data DESTDIR="${ROOTDIR}/mux-headers" 184 LIB_HEADERS="${ROOTDIR}/lib-headers/${ROOTDIR}/include/webp" 185 DEC_HEADERS="${ROOTDIR}/dec-headers/${ROOTDIR}/include/webp" 186 DEMUX_HEADERS="${ROOTDIR}/demux-headers/${ROOTDIR}/include/webp" 187 MUX_HEADERS="${ROOTDIR}/mux-headers/${ROOTDIR}/include/webp" 188 189 make distclean 190 cd .. 191 192 export PATH=${OLDPATH} 193 done 194 195 [[ -z "${LIBLIST[@]}" ]] && continue 196 197 # Create a temporary target directory for each <platform>[-<variant>]. 198 target_dir="${BUILDDIR}/${PLATFORMS[$i]}" 199 target_dir="${target_dir%% *}" 200 target_dir="${target_dir%-*}" 201 target_lib="${target_dir}/$(basename ${LIBLIST[0]})" 202 target_declib="${target_dir}/$(basename ${DECLIBLIST[0]})" 203 target_demuxlib="${target_dir}/$(basename ${DEMUXLIBLIST[0]})" 204 target_muxlib="${target_dir}/$(basename ${MUXLIBLIST[0]})" 205 206 mkdir -p "${target_dir}" 207 ${LIPO} -create ${LIBLIST[@]} -output "${target_lib}" 208 ${LIPO} -create ${DECLIBLIST[@]} -output "${target_declib}" 209 ${LIPO} -create ${DEMUXLIBLIST[@]} -output "${target_demuxlib}" 210 ${LIPO} -create ${MUXLIBLIST[@]} -output "${target_muxlib}" 211 FAT_LIBLIST+=(-library "${target_lib}" -headers "${LIB_HEADERS}") 212 FAT_DECLIBLIST+=(-library "${target_declib}" -headers "${DEC_HEADERS}") 213 FAT_DEMUXLIBLIST+=(-library "${target_demuxlib}" -headers "${DEMUX_HEADERS}") 214 FAT_MUXLIBLIST+=(-library "${target_muxlib}" -headers "${MUX_HEADERS}") 215done 216 217# lipo will not put archives with the same architecture (e.g., x86_64 218# iPhoneSimulator & MacOS) in the same fat output file. xcodebuild 219# -create-xcframework requires universal archives to avoid e.g.: 220# Both ios-x86_64-maccatalyst and ios-arm64-maccatalyst represent two 221# equivalent library definitions 222set -x 223xcodebuild -create-xcframework "${FAT_LIBLIST[@]}" \ 224 -output ${TARGETDIR} 225xcodebuild -create-xcframework "${FAT_DECLIBLIST[@]}" \ 226 -output ${DECTARGETDIR} 227xcodebuild -create-xcframework "${FAT_DEMUXLIBLIST[@]}" \ 228 -output ${DEMUXTARGETDIR} 229xcodebuild -create-xcframework "${FAT_MUXLIBLIST[@]}" \ 230 -output ${MUXTARGETDIR} 231set +x 232 233echo "SUCCESS" 234