skia2/modules/canvaskit/compile.sh
Kevin Lubick 2887d35ca9 [canvaskit] Enable font edging
Adding in the mono rasterizer on freetype adds 12k of code size
(6k compressed), so we make it opt out and don't ship to npm with it.

Bug: skia:10192
Change-Id: I8352adbeaec288800ae1ca4709144860e9a1e84c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/288546
Reviewed-by: Ben Wagner <bungeman@google.com>
2020-05-08 13:22:18 +00:00

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#!/bin/bash
# Copyright 2018 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
cat >&2 << "EOF"
Be sure to set the EMSDK environment variable to the location of Emscripten SDK:
https://emscripten.org/docs/getting_started/downloads.html
EOF
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`
RELEASE_CONF="-Oz --closure 1 --llvm-lto 1 -DSK_RELEASE --pre-js $BASE_DIR/release.js \
-DGR_GL_CHECK_ALLOC_WITH_GET_ERROR=0"
EXTRA_CFLAGS="\"-DSK_RELEASE\", \"-DGR_GL_CHECK_ALLOC_WITH_GET_ERROR=0\","
IS_OFFICIAL_BUILD="true"
# Tracing will be disabled in release/profiling unless this flag is seen. Tracing will
# be on debug builds always.
if [[ $@ != *force_tracing* ]] ; then
RELEASE_CONF+=" -DSK_DISABLE_TRACING"
EXTRA_CFLAGS+="\"-DSK_DISABLE_TRACING\","
fi
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/canvaskit/bin/ -DSK_DEBUG --pre-js $BASE_DIR/debug.js"
BUILD_DIR=${BUILD_DIR:="out/canvaskit_wasm_debug"}
elif [[ $@ == *profiling* ]]; then
echo "Building a build for profiling"
RELEASE_CONF+=" --profiling-funcs --closure 0"
BUILD_DIR=${BUILD_DIR:="out/canvaskit_wasm_profile"}
else
BUILD_DIR=${BUILD_DIR:="out/canvaskit_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
GN_GPU="skia_enable_gpu=true skia_gl_standard = \"webgl\""
GN_GPU_FLAGS="\"-DSK_DISABLE_LEGACY_SHADERCONTEXT\","
WASM_GPU="-lEGL -lGLESv2 -DSK_SUPPORT_GPU=1 -DSK_GL \
-DSK_DISABLE_LEGACY_SHADERCONTEXT --pre-js $BASE_DIR/cpu.js --pre-js $BASE_DIR/gpu.js\
-s USE_WEBGL2=1"
if [[ $@ == *cpu* ]]; then
echo "Using the CPU backend instead of the GPU backend"
GN_GPU="skia_enable_gpu=false"
GN_GPU_FLAGS=""
WASM_GPU="-DSK_SUPPORT_GPU=0 --pre-js $BASE_DIR/cpu.js -s USE_WEBGL2=0"
fi
SKP_JS="--pre-js $BASE_DIR/skp.js"
GN_SKP_FLAGS=""
WASM_SKP="-DSK_SERIALIZE_SKP"
if [[ $@ == *no_skp* ]]; then
GN_SKP_FLAGS="\"-DSK_DISABLE_READBUFFER\","
WASM_SKP="-DSK_DISABLE_READBUFFER"
SKP_JS=""
fi
SKOTTIE_JS="--pre-js $BASE_DIR/skottie.js"
SKOTTIE_BINDINGS="$BASE_DIR/skottie_bindings.cpp"
SKOTTIE_LIB="$BUILD_DIR/libskottie.a \
$BUILD_DIR/libsksg.a"
if [[ $@ == *no_skottie* ]]; then
echo "Omitting Skottie"
SKOTTIE_JS=""
SKOTTIE_LIB=""
SKOTTIE_BINDINGS=""
fi
VIEWER_BINDINGS=""
VIEWER_LIB=""
if [[ $@ == *viewer* ]]; then
echo "Including viewer"
VIEWER_BINDINGS="$BASE_DIR/viewer_bindings.cpp"
VIEWER_LIB="$BUILD_DIR/libviewer_wasm.a"
IS_OFFICIAL_BUILD="false"
fi
MANAGED_SKOTTIE_BINDINGS="\
-DSK_INCLUDE_MANAGED_SKOTTIE=1 \
modules/skottie/utils/SkottieUtils.cpp"
if [[ $@ == *no_managed_skottie* || $@ == *no_skottie* ]]; then
echo "Omitting managed Skottie"
MANAGED_SKOTTIE_BINDINGS="-DSK_INCLUDE_MANAGED_SKOTTIE=0"
fi
GN_PARTICLES="skia_enable_sksl_interpreter=true"
PARTICLES_JS="--pre-js $BASE_DIR/particles.js"
PARTICLES_BINDINGS="$BASE_DIR/particles_bindings.cpp"
PARTICLES_LIB="$BUILD_DIR/libparticles.a"
if [[ $@ == *no_particles* ]]; then
echo "Omitting Particles"
GN_PARTICLES="skia_enable_sksl_interpreter=false"
PARTICLES_JS=""
PARTICLES_BINDINGS=""
PARTICLES_LIB=""
fi
if [[ $@ != *no_particles* || $@ != *no_skottie* ]] ; then
PARTICLES_BINDINGS+=" modules/skresources/src/SkResources.cpp"
fi
WASM_PATHOPS="-DSK_INCLUDE_PATHOPS"
PATHOPS_JS="--pre-js $BASE_DIR/pathops.js"
if [[ $@ == *no_pathops* ]] ; then
WASM_PATHOPS=""
PATHOPS_JS=""
fi
WASM_RT_SHADER="-DSK_INCLUDE_RUNTIME_EFFECT"
RT_SHADER_JS="--pre-js $BASE_DIR/rt_shader.js"
if [[ $@ == *no_rt_shader* ]] ; then
WASM_RT_SHADER=""
RT_SHADER_JS=""
fi
HTML_CANVAS_API="--pre-js $BASE_DIR/htmlcanvas/preamble.js \
--pre-js $BASE_DIR/htmlcanvas/util.js \
--pre-js $BASE_DIR/htmlcanvas/color.js \
--pre-js $BASE_DIR/htmlcanvas/font.js \
--pre-js $BASE_DIR/htmlcanvas/canvas2dcontext.js \
--pre-js $BASE_DIR/htmlcanvas/htmlcanvas.js \
--pre-js $BASE_DIR/htmlcanvas/imagedata.js \
--pre-js $BASE_DIR/htmlcanvas/lineargradient.js \
--pre-js $BASE_DIR/htmlcanvas/path2d.js \
--pre-js $BASE_DIR/htmlcanvas/pattern.js \
--pre-js $BASE_DIR/htmlcanvas/radialgradient.js \
--pre-js $BASE_DIR/htmlcanvas/postamble.js "
if [[ $@ == *no_canvas* ]]; then
echo "Omitting bindings for HTML Canvas API"
HTML_CANVAS_API=""
fi
GN_FONT="skia_enable_fontmgr_empty=false skia_enable_fontmgr_custom_empty=false"
FONT_CFLAGS=""
BUILTIN_FONT="$BASE_DIR/fonts/NotoMono-Regular.ttf.cpp"
FONT_JS="--pre-js $BASE_DIR/font.js"
if [[ $@ == *no_font* ]]; then
echo "Omitting the built-in font(s), font manager and all code dealing with fonts"
BUILTIN_FONT=""
FONT_CFLAGS="-DSK_NO_FONTS"
FONT_JS=""
GN_FONT="skia_enable_fontmgr_empty=true skia_enable_fontmgr_custom_empty=false"
elif [[ $@ == *no_embedded_font* ]]; then
echo "Omitting the built-in font(s)"
BUILTIN_FONT=""
GN_FONT="skia_enable_fontmgr_empty=false skia_enable_fontmgr_custom_empty=true"
else
# 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
fi
if [[ $@ == *no_alias_font* ]]; then
EXTRA_CFLAGS+=" -DCANVASKIT_NO_ALIAS_FONT"
FONT_CFLAGS+=" -DCANVASKIT_NO_ALIAS_FONT"
fi
GN_SHAPER="skia_use_icu=true skia_use_system_icu=false skia_use_harfbuzz=true skia_use_system_harfbuzz=false"
SHAPER_LIB="$BUILD_DIR/libharfbuzz.a \
$BUILD_DIR/libicu.a"
if [[ $@ == *primitive_shaper* ]] || [[ $@ == *no_font* ]]; then
echo "Using the primitive shaper instead of the harfbuzz/icu one"
GN_SHAPER="skia_use_icu=false skia_use_harfbuzz=false"
SHAPER_LIB=""
fi
PARAGRAPH_JS="--pre-js $BASE_DIR/paragraph.js"
PARAGRAPH_LIB="$BUILD_DIR/libskparagraph.a"
PARAGRAPH_BINDINGS="-DSK_INCLUDE_PARAGRAPH=1 \
$BASE_DIR/paragraph_bindings.cpp"
if [[ $@ == *no_paragraph* ]] || [[ $@ == *primitive_shaper* ]] || [[ $@ == *no_font* ]]; then
echo "Omitting paragraph (must have fonts and non-primitive shaper)"
PARAGRAPH_JS=""
PARAGRAPH_LIB=""
PARAGRAPH_BINDINGS=""
fi
DO_DECODE="true"
if [[ $@ == *no_codecs* ]]; then
echo "Omitting codecs"
DO_DECODE="false"
ENCODE_PNG="false"
ENCODE_JPEG="false"
ENCODE_WEBP="false"
else
ENCODE_PNG="true"
if [[ $@ == *no_encode_png* ]]; then
ENCODE_PNG="false"
fi
ENCODE_JPEG="false"
if [[ $@ == *force_encode_jpeg* ]]; then
ENCODE_JPEG="true"
fi
ENCODE_WEBP="false"
if [[ $@ == *force_encode_webp* ]]; then
ENCODE_WEBP="true"
fi
fi # no_codecs
# 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"
# Inspired by https://github.com/Zubnix/skia-wasm-port/blob/master/build_bindings.sh
./bin/gn gen ${BUILD_DIR} \
--args="cc=\"${EMCC}\" \
cxx=\"${EMCXX}\" \
ar=\"${EMAR}\" \
extra_cflags_cc=[\"-frtti\"] \
extra_cflags=[\"-s\", \"WARN_UNALIGNED=1\", \"-s\", \"MAIN_MODULE=1\",
\"-DSKNX_NO_SIMD\", \"-DSK_DISABLE_AAA\",
\"-DSK_DISABLE_EFFECT_DESERIALIZATION\",
\"-DSK_FORCE_8_BYTE_ALIGNMENT\",
${GN_GPU_FLAGS}
${GN_SKP_FLAGS}
${EXTRA_CFLAGS}
] \
is_debug=false \
is_official_build=${IS_OFFICIAL_BUILD} \
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=${DO_DECODE} \
skia_use_libjpeg_turbo_encode=${ENCODE_JPEG} \
skia_use_libpng_decode=${DO_DECODE} \
skia_use_libpng_encode=${ENCODE_PNG} \
skia_use_libwebp_decode=${DO_DECODE} \
skia_use_libwebp_encode=${ENCODE_WEBP} \
skia_use_lua=false \
skia_use_piex=false \
skia_use_system_freetype2=false \
skia_use_system_libjpeg_turbo=false \
skia_use_system_libpng=false \
skia_use_system_libwebp=false \
skia_use_system_zlib=false\
skia_use_vulkan=false \
skia_use_wuffs=true \
skia_use_zlib=true \
\
${GN_SHAPER} \
${GN_GPU} \
${GN_FONT} \
${GN_PARTICLES} \
\
skia_enable_skshaper=true \
skia_enable_ccpr=false \
skia_enable_nvpr=false \
skia_enable_skparagraph=true \
skia_enable_pdf=false"
# Build all the libs we will need below
parse_targets() {
for LIBPATH in $@; do
basename $LIBPATH
done
}
${NINJA} -C ${BUILD_DIR} libskia.a libskshaper.a \
$(parse_targets $SKOTTIE_LIB $VIEWER_LIB $PARTICLES_LIB $SHAPER_LIB $PARAGRAPH_LIB)
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.
${EMCXX} \
$RELEASE_CONF \
-I. \
-Ithird_party/icu \
-Ithird_party/skcms \
-Ithird_party/externals/icu/source/common/ \
-DSK_DISABLE_AAA \
-DSK_FORCE_8_BYTE_ALIGNMENT \
$WASM_GPU \
$WASM_PATHOPS \
$WASM_RT_SHADER \
$WASM_SKP \
$FONT_CFLAGS \
-std=c++17 \
--bind \
--pre-js $BASE_DIR/preamble.js \
--pre-js $BASE_DIR/helper.js \
--pre-js $BASE_DIR/interface.js \
$PARAGRAPH_JS \
$SKOTTIE_JS \
$PARTICLES_JS \
$PATHOPS_JS \
$FONT_JS \
$SKP_JS \
$RT_SHADER_JS \
$HTML_CANVAS_API \
--pre-js $BASE_DIR/postamble.js \
--post-js $BASE_DIR/ready.js \
$BASE_DIR/canvaskit_bindings.cpp \
$PARTICLES_BINDINGS \
$SKOTTIE_BINDINGS \
$VIEWER_BINDINGS \
$MANAGED_SKOTTIE_BINDINGS \
$PARAGRAPH_BINDINGS \
$SKOTTIE_LIB \
$VIEWER_LIB \
$PARTICLES_LIB \
$PARAGRAPH_LIB \
$BUILD_DIR/libskshaper.a \
$SHAPER_LIB \
$BUILD_DIR/libskia.a \
$BUILTIN_FONT \
-s ALLOW_MEMORY_GROWTH=1 \
-s EXPORT_NAME="CanvasKitInit" \
-s FORCE_FILESYSTEM=0 \
-s FILESYSTEM=0 \
-s MODULARIZE=1 \
-s NO_EXIT_RUNTIME=1 \
-s STRICT=1 \
-s TOTAL_MEMORY=128MB \
-s WARN_UNALIGNED=1 \
-s WASM=1 \
-o $BUILD_DIR/canvaskit.js