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260 lines
7.7 KiB
260 lines
7.7 KiB
#!/bin/bash
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# Copyright 2020 Google LLC
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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set -ex
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BASE_DIR=`cd $(dirname ${BASH_SOURCE[0]}) && pwd`
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# This expects the environment variable EMSDK to be set
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if [[ ! -d $EMSDK ]]; then
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cat >&2 << "EOF"
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Be sure to set the EMSDK environment variable to the location of Emscripten SDK:
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https://emscripten.org/docs/getting_started/downloads.html
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EOF
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exit 1
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fi
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# Navigate to SKIA_HOME from where this file is located.
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pushd $BASE_DIR/../..
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source $EMSDK/emsdk_env.sh
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EMCC=`which emcc`
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EMCXX=`which em++`
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EMAR=`which emar`
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if [[ $@ == *debug* ]]; then
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echo "Building a Debug build"
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DEBUG=true
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EXTRA_CFLAGS="\"-DSK_DEBUG\", \"-DGR_TEST_UTILS\", "
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RELEASE_CONF="-O1 --js-opts 0 -s DEMANGLE_SUPPORT=1 -frtti -s ASSERTIONS=1 -s GL_ASSERTIONS=1 -g \
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-DSK_DEBUG --pre-js $BASE_DIR/debug.js"
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BUILD_DIR=${BUILD_DIR:="out/wasm_gm_tests_debug"}
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else
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echo "Building a release build"
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DEBUG=false
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BUILD_DIR=${BUILD_DIR:="out/wasm_gm_tests"}
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RELEASE_CONF="-O3 -DSK_RELEASE --pre-js $BASE_DIR/release.js \
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-DGR_TEST_UTILS"
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EXTRA_CFLAGS="\"-DSK_RELEASE\", \"-DGR_TEST_UTILS\", "
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fi
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IS_OFFICIAL_BUILD="false"
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mkdir -p $BUILD_DIR
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# sometimes the .a files keep old symbols around - cleaning them out makes sure
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# we get a fresh build.
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rm -f $BUILD_DIR/*.a
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GN_GPU="skia_enable_gpu=true skia_gl_standard = \"webgl\""
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GN_GPU_FLAGS="\"-DSK_DISABLE_LEGACY_SHADERCONTEXT\","
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WASM_GPU="-lGL -DSK_SUPPORT_GPU=1 -DSK_GL \
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-DSK_DISABLE_LEGACY_SHADERCONTEXT --pre-js $BASE_DIR/cpu.js --pre-js $BASE_DIR/gpu.js\
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-s USE_WEBGL2=1"
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GM_LIB="$BUILD_DIR/libgm_wasm.a"
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GN_FONT="skia_enable_fontmgr_custom_directory=false "
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BUILTIN_FONT="$BASE_DIR/fonts/NotoMono-Regular.ttf.cpp"
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# Generate the font's binary file (which is covered by .gitignore)
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python tools/embed_resources.py \
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--name SK_EMBEDDED_FONTS \
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--input $BASE_DIR/fonts/NotoMono-Regular.ttf \
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--output $BASE_DIR/fonts/NotoMono-Regular.ttf.cpp \
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--align 4
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GN_FONT+="skia_enable_fontmgr_custom_embedded=true skia_enable_fontmgr_custom_empty=false"
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GN_SHAPER="skia_use_icu=true skia_use_system_icu=false skia_use_harfbuzz=true skia_use_system_harfbuzz=false"
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# Turn off exiting while we check for ninja (which may not be on PATH)
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set +e
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NINJA=`which ninja`
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if [[ -z $NINJA ]]; then
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git clone "https://chromium.googlesource.com/chromium/tools/depot_tools.git" --depth 1 $BUILD_DIR/depot_tools
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NINJA=$BUILD_DIR/depot_tools/ninja
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fi
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# Re-enable error checking
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set -e
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./bin/fetch-gn
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echo "Compiling bitcode"
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# Inspired by https://github.com/Zubnix/skia-wasm-port/blob/master/build_bindings.sh
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./bin/gn gen ${BUILD_DIR} \
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--args="cc=\"${EMCC}\" \
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cxx=\"${EMCXX}\" \
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ar=\"${EMAR}\" \
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extra_cflags_cc=[\"-frtti\"] \
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extra_cflags=[\"-s\", \"WARN_UNALIGNED=1\", \"-s\", \"MAIN_MODULE=1\",
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\"-DSKNX_NO_SIMD\", \"-DSK_DISABLE_AAA\",
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\"-DSK_FORCE_8_BYTE_ALIGNMENT\",
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${GN_GPU_FLAGS}
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${EXTRA_CFLAGS}
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] \
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is_debug=${DEBUG} \
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is_official_build=${IS_OFFICIAL_BUILD} \
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is_component_build=false \
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werror=true \
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target_cpu=\"wasm\" \
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\
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skia_use_angle=false \
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skia_use_dng_sdk=false \
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skia_use_webgl=true \
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skia_use_fontconfig=false \
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skia_use_freetype=true \
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skia_use_libheif=true \
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skia_use_libjpeg_turbo_decode=true \
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skia_use_libjpeg_turbo_encode=true \
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skia_use_libpng_decode=true \
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skia_use_libpng_encode=true \
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skia_use_libwebp_decode=true \
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skia_use_libwebp_encode=true \
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skia_use_lua=false \
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skia_use_piex=true \
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skia_use_system_freetype2=false \
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skia_use_system_libjpeg_turbo=false \
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skia_use_system_libpng=false \
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skia_use_system_libwebp=false \
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skia_use_system_zlib=false\
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skia_use_vulkan=false \
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skia_use_wuffs=true \
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skia_use_zlib=true \
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\
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${GN_SHAPER} \
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${GN_GPU} \
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${GN_FONT} \
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skia_use_expat=true \
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skia_enable_ccpr=true \
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skia_enable_nga=false \
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skia_enable_svg=true \
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skia_enable_skshaper=true \
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skia_enable_skparagraph=true \
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skia_enable_pdf=false"
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# Build all the libs we will need below
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parse_targets() {
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for LIBPATH in $@; do
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basename $LIBPATH
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done
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}
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${NINJA} -C ${BUILD_DIR} libskia.a libskshaper.a \
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$(parse_targets $SHAPER_LIB $GM_LIB)
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echo "Generating final wasm"
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# Defines for the emscripten compilation step, which builds the tests
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# Aim to match the defines that would be set by gn for the skia compilation step.
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SKIA_DEFINES="
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-DSK_DISABLE_AAA \
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-DSK_FORCE_8_BYTE_ALIGNMENT \
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-DSK_HAS_WUFFS_LIBRARY \
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-DSK_HAS_HEIF_LIBRARY \
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-DSK_ENCODE_WEBP \
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-DSK_CODEC_DECODES_WEBP \
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-DSK_ENCODE_PNG \
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-DSK_CODEC_DECODES_PNG \
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-DSK_ENCODE_JPEG \
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-DSK_CODEC_DECODES_JPEG \
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-DSK_SHAPER_HARFBUZZ_AVAILABLE \
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-DSK_UNICODE_AVAILABLE \
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-DSK_ENABLE_SVG"
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# Disable '-s STRICT=1' outside of Linux until
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# https://github.com/emscripten-core/emscripten/issues/12118 is resovled.
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STRICTNESS="-s STRICT=1"
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if [[ `uname` != "Linux" ]]; then
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echo "Disabling '-s STRICT=1'. See: https://github.com/emscripten-core/emscripten/issues/12118"
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STRICTNESS=""
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fi
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GMS_TO_BUILD="gm/*.cpp"
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TESTS_TO_BUILD="tests/*.cpp"
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# DSL FP tests need to include compiled test shaders from the `dslfp` subdirectory.
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TESTS_TO_BUILD+=\
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" tests/sksl/dslfp/GrDSLFPTest_DoStatement.dsl.cpp"\
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" tests/sksl/dslfp/GrDSLFPTest_ForStatement.dsl.cpp"\
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" tests/sksl/dslfp/GrDSLFPTest_IfStatement.dsl.cpp"\
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" tests/sksl/dslfp/GrDSLFPTest_SwitchStatement.dsl.cpp"\
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" tests/sksl/dslfp/GrDSLFPTest_Swizzle.dsl.cpp"\
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" tests/sksl/dslfp/GrDSLFPTest_Ternary.dsl.cpp"\
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" tests/sksl/dslfp/GrDSLFPTest_WhileStatement.dsl.cpp"
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# When developing locally, it can be faster to focus only on the gms or tests you care about
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# (since they all have to be recompiled/relinked) every time. To do so, mark the following as true
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if false; then
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GMS_TO_BUILD="gm/gm.cpp"
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TESTS_TO_BUILD="tests/BulkRectTest.cpp tests/Test.cpp"
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fi
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# These gms do not compile or link with the WASM code. Thus, we omit them.
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GLOBIGNORE="gm/cgms.cpp:"\
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"gm/compressed_textures.cpp:"\
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"gm/fiddle.cpp:"\
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"gm/particles.cpp:"\
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"gm/xform.cpp:"\
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"gm/video_decoder.cpp:"
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# These tests do not compile with the WASM code (require other deps).
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GLOBIGNORE+="tests/CodecTest.cpp:"\
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"tests/ColorSpaceTest.cpp:"\
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"tests/DrawOpAtlasTest.cpp:"\
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"tests/EncodeTest.cpp:"\
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"tests/FontMgrAndroidParserTest.cpp:"\
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"tests/FontMgrFontConfigTest.cpp:"\
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"tests/TypefaceMacTest.cpp:"\
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"tests/SkVMTest.cpp:"
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# These tests do complex things with TestContexts, which is not easily supported for the WASM
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# test harness. Thus we omit them.
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GLOBIGNORE+="tests/BackendAllocationTest.cpp:"\
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"tests/EGLImageTest.cpp:"\
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"tests/ImageTest.cpp:"\
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"tests/SurfaceSemaphoreTest.cpp:"\
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"tests/TextureBindingsResetTest.cpp:"\
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"tests/VkHardwareBufferTest.cpp:"
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# All the tests in these files crash.
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GLOBIGNORE+="tests/GrThreadSafeCacheTest.cpp"
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# Emscripten prefers that the .a files go last in order, otherwise, it
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# may drop symbols that it incorrectly thinks aren't used. One day,
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# Emscripten will use LLD, which may relax this requirement.
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EMCC_DEBUG=1 ${EMCXX} \
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$RELEASE_CONF \
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-I. \
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-DGR_TEST_UTILS \
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$SKIA_DEFINES \
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$WASM_GPU \
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-std=c++17 \
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--profiling-funcs \
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--profiling \
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--bind \
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--no-entry \
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--pre-js $BASE_DIR/gm.js \
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tools/Resources.cpp \
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$BASE_DIR/gm_bindings.cpp \
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$GMS_TO_BUILD \
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$TESTS_TO_BUILD \
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$GM_LIB \
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$BUILD_DIR/libskshaper.a \
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$BUILD_DIR/libsvg.a \
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$BUILD_DIR/libskia.a \
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$BUILTIN_FONT \
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-s LLD_REPORT_UNDEFINED \
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-s ALLOW_MEMORY_GROWTH=1 \
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-s EXPORT_NAME="InitWasmGMTests" \
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-s EXPORTED_FUNCTIONS=['_malloc','_free'] \
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-s FORCE_FILESYSTEM=1 \
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-s FILESYSTEM=1 \
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-s MODULARIZE=1 \
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-s NO_EXIT_RUNTIME=1 \
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-s INITIAL_MEMORY=256MB \
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-s WASM=1 \
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$STRICTNESS \
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-o $BUILD_DIR/wasm_gm_tests.js
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