| #!/bin/bash |
| # Copyright 2019 Google LLC |
| # |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| |
| set -ex |
| |
| BASE_DIR=`cd $(dirname ${BASH_SOURCE[0]}) && pwd` |
| # This expects the environment variable EMSDK to be set |
| if [[ ! -d $EMSDK ]]; then |
| echo "Be sure to set the EMSDK environment variable." |
| exit 1 |
| fi |
| |
| # Navigate to SKIA_HOME from where this file is located. |
| pushd $BASE_DIR/../.. |
| |
| source $EMSDK/emsdk_env.sh |
| EMCC=`which emcc` |
| EMCXX=`which em++` |
| EMAR=`which emar` |
| |
| if [[ $@ == *debug* ]]; then |
| echo "Building a Debug build" |
| EXTRA_CFLAGS="\"-DSK_DEBUG\"," |
| RELEASE_CONF="-O0 --js-opts 0 -s DEMANGLE_SUPPORT=1 -s ASSERTIONS=1 -s GL_ASSERTIONS=1 -g4 \ |
| --source-map-base /node_modules/debugger/bin/ -DSK_DEBUG" |
| BUILD_DIR=${BUILD_DIR:="out/debugger_wasm_debug"} |
| else |
| echo "Building a Release build" |
| EXTRA_CFLAGS="\"-DSK_RELEASE\"," |
| RELEASE_CONF="-Oz --closure 1 --llvm-lto 3 -DSK_RELEASE" |
| BUILD_DIR=${BUILD_DIR:="out/debugger_wasm"} |
| fi |
| |
| mkdir -p $BUILD_DIR |
| # sometimes the .a files keep old symbols around - cleaning them out makes sure |
| # we get a fresh build. |
| rm -f $BUILD_DIR/*.a |
| |
| BUILTIN_FONT="$BASE_DIR/fonts/NotoMono-Regular.ttf.cpp" |
| # Generate the font's binary file (which is covered by .gitignore) |
| python tools/embed_resources.py \ |
| --name SK_EMBEDDED_FONTS \ |
| --input $BASE_DIR/fonts/NotoMono-Regular.ttf \ |
| --output $BASE_DIR/fonts/NotoMono-Regular.ttf.cpp \ |
| --align 4 |
| |
| GN_GPU="skia_enable_gpu=true skia_gl_standard = \"webgl\"" |
| GN_GPU_FLAGS="\"-DSK_DISABLE_LEGACY_SHADERCONTEXT\"," |
| WASM_GPU="-lEGL -lGL -lGLESv2 -DSK_SUPPORT_GPU=1 -DSK_GL \ |
| -DSK_DISABLE_LEGACY_SHADERCONTEXT --pre-js $BASE_DIR/cpu.js --pre-js $BASE_DIR/gpu.js" |
| |
| # Turn off exiting while we check for ninja (which may not be on PATH) |
| set +e |
| NINJA=`which ninja` |
| if [[ -z $NINJA ]]; then |
| git clone "https://chromium.googlesource.com/chromium/tools/depot_tools.git" --depth 1 $BUILD_DIR/depot_tools |
| NINJA=$BUILD_DIR/depot_tools/ninja |
| fi |
| # Re-enable error checking |
| set -e |
| |
| ./bin/fetch-gn |
| |
| echo "Compiling bitcode" |
| |
| ./bin/gn gen ${BUILD_DIR} \ |
| --args="cc=\"${EMCC}\" \ |
| cxx=\"${EMCXX}\" \ |
| ar=\"${EMAR}\" \ |
| extra_cflags_cc=[\"-frtti\"] \ |
| extra_cflags=[\"-s\", \"MAIN_MODULE=1\", |
| \"-DSKNX_NO_SIMD\", \"-DSK_DISABLE_AAA\", \"-DSK_DISABLE_NEW_GR_CLIP_STACK\", |
| \"-DSK_FORCE_8_BYTE_ALIGNMENT\", |
| ${GN_GPU_FLAGS} |
| ${EXTRA_CFLAGS} |
| ] \ |
| is_debug=false \ |
| is_official_build=true \ |
| is_component_build=false \ |
| werror=true \ |
| target_cpu=\"wasm\" \ |
| \ |
| skia_use_angle=false \ |
| skia_use_dng_sdk=false \ |
| skia_use_egl=true \ |
| skia_use_expat=false \ |
| skia_use_fontconfig=false \ |
| skia_use_freetype=true \ |
| skia_use_libheif=false \ |
| skia_use_libjpeg_turbo_decode=true \ |
| skia_use_libjpeg_turbo_encode=false \ |
| skia_use_libpng_decode=true \ |
| skia_use_libpng_encode=false \ |
| skia_use_libwebp_decode=true \ |
| skia_use_libwebp_encode=false \ |
| skia_use_wuffs=true \ |
| skia_use_lua=false \ |
| skia_use_piex=false \ |
| skia_use_system_libpng=false \ |
| skia_use_system_freetype2=false \ |
| skia_use_system_libjpeg_turbo = false \ |
| skia_use_system_libwebp=false \ |
| skia_use_system_zlib=false\ |
| skia_use_vulkan=false \ |
| skia_use_zlib=true \ |
| ${GN_GPU} \ |
| skia_enable_tools=false \ |
| skia_enable_skshaper=false \ |
| skia_enable_ccpr=false \ |
| skia_enable_fontmgr_custom_directory=false \ |
| skia_enable_fontmgr_custom_embedded=true \ |
| skia_enable_fontmgr_custom_empty=false \ |
| skia_enable_pdf=false" |
| |
| # Build all the libs, we'll link the appropriate ones down below |
| ${NINJA} -C ${BUILD_DIR} libskia.a libdebugcanvas.a |
| |
| export EMCC_CLOSURE_ARGS="--externs $BASE_DIR/externs.js " |
| |
| echo "Generating final wasm" |
| |
| # Emscripten prefers that the .a files go last in order, otherwise, it |
| # may drop symbols that it incorrectly thinks aren't used. One day, |
| # Emscripten will use LLD, which may relax this requirement. |
| EMCC_DEBUG=1 ${EMCXX} \ |
| $RELEASE_CONF \ |
| -I. \ |
| -Ithird_party/icu \ |
| -Ithird_party/skcms \ |
| -DSK_DISABLE_AAA \ |
| -DSK_FORCE_8_BYTE_ALIGNMENT \ |
| -std=c++17 \ |
| $WASM_GPU \ |
| --pre-js $BASE_DIR/helper.js \ |
| --bind \ |
| --no-entry \ |
| $BASE_DIR/fonts/NotoMono-Regular.ttf.cpp \ |
| $BASE_DIR/debugger_bindings.cpp \ |
| $BUILD_DIR/libdebugcanvas.a \ |
| $BUILD_DIR/libskia.a \ |
| -s ALLOW_MEMORY_GROWTH=1 \ |
| -s EXPORT_NAME="DebuggerInit" \ |
| -s FORCE_FILESYSTEM=0 \ |
| -s FILESYSTEM=0 \ |
| -s MODULARIZE=1 \ |
| -s NO_EXIT_RUNTIME=1 \ |
| -s STRICT=1 \ |
| -s INITIAL_MEMORY=128MB \ |
| -s WASM=1 \ |
| -s USE_WEBGL2=1 \ |
| -o $BUILD_DIR/debugger.js |