45f36b5b55
Its effect is small and we want to rely on SkReadBuffer being available.
Size changes:
- canvaskit uncompressed: 6,864,481 --> 6,864,481 ( no change )
- canvaskit compressed: 2,667,117 --> 2,667,117 ( no change )
- pathkit uncompressed: 329,187 --> 330,679 (+ 1.5K, +0.5%)
- pathkit compressed: 134,158 --> 134,672 (+ 0.5K, +0.4%)
- flutter : 1,302,108 --> 1,322,568 (+20.0K, +1.6%)
The Flutter change is the biggest mystery, as bloaty only pegs
SkReadBuffer as 3.9K. The rest must come from other files including
SkReadBuffer.h not being able to see and inline away SkReadBuffer
routines? Feels like SK_DISABLE_EFFECT_DESERIALIZATION isn't trimming
enough?
PS 4-6 have an idea to push SK_DISABLE_EFFECT_DESERIALIZATION further.
Change-Id: Ifda3ccb82dd0636cfed6bb826fb185a7bca2cbe0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/295061
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
134 lines
3.9 KiB
Bash
Executable File
134 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2018 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 ${BASH_SOURCE[0]}) && pwd`
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HTML_SHELL=$BASE_DIR/shell.html
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BUILD_DIR=${BUILD_DIR:="out/pathkit"}
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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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# This expects the environment variable EMSDK to be set
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if [[ ! -d $EMSDK ]]; then
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echo "Be sure to set the EMSDK environment variable."
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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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echo "Putting output in $BUILD_DIR (pwd = `pwd`)"
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# Run this from $SKIA_HOME, not from the directory this file is in.
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if [[ ! -d ./src ]]; then
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echo "Cannot locate Skia source. Is the source checkout okay? Exiting."
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exit 1
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fi
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if [[ $@ == *help* ]]; then
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echo "By default, this script builds a production WASM build of PathKit."
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echo ""
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echo "It is put in ${BUILD_DIR}, configured by the BUILD_DIR environment"
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echo "variable. Additionally, the EMSDK environment variable must be set."
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echo "This script takes several optional parameters:"
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echo " test = Make a build suitable for running tests or profiling"
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echo " debug = Make a build suitable for debugging (defines SK_DEBUG)"
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echo " asm.js = Build for asm.js instead of WASM (very experimental)"
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echo " serve = starts a webserver allowing a user to navigate to"
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echo " localhost:8000/pathkit.html to view the demo page."
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exit 0
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fi
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# Use -O0 for larger builds (but generally quicker)
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# Use -Oz for (much slower, but smaller/faster) production builds
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export EMCC_CLOSURE_ARGS="--externs $BASE_DIR/externs.js "
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RELEASE_CONF="-Oz --closure 1 -s EVAL_CTORS=1 --llvm-lto 3 -s ELIMINATE_DUPLICATE_FUNCTIONS=1 -DSK_RELEASE"
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# It is very important for the -DSK_RELEASE/-DSK_DEBUG to match on the libskia.a, otherwise
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# things like SKDEBUGCODE are sometimes compiled in and sometimes not, which can cause headaches
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# like sizeof() mismatching between .cpp files and .h files.
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EXTRA_CFLAGS="\"-DSK_RELEASE\""
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if [[ $@ == *test* ]]; then
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echo "Building a Testing/Profiling build"
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RELEASE_CONF="-O2 --profiling -DPATHKIT_TESTING -DSK_RELEASE"
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elif [[ $@ == *debug* ]]; then
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echo "Building a Debug build"
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EXTRA_CFLAGS="\"-DSK_DEBUG\""
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RELEASE_CONF="-O0 --js-opts 0 -s SAFE_HEAP=1 -s ASSERTIONS=1 -g3 -DPATHKIT_TESTING -DSK_DEBUG"
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fi
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WASM_CONF="-s WASM=1"
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if [[ $@ == *asm.js* ]]; then
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echo "Building with asm.js instead of WASM"
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WASM_CONF="-s WASM=0 -s ALLOW_MEMORY_GROWTH=1"
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fi
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OUTPUT="-o $BUILD_DIR/pathkit.js"
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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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# 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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echo "Compiling bitcode"
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./bin/fetch-gn
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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=[\"-s\", \"WARN_UNALIGNED=1\",
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\"-s\", \"MAIN_MODULE=1\",
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${EXTRA_CFLAGS}
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] \
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is_debug=false \
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is_official_build=true \
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is_component_build=false \
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werror=true \
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target_cpu=\"wasm\" "
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${NINJA} -C ${BUILD_DIR} libpathkit.a
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echo "Generating WASM"
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${EMCXX} $RELEASE_CONF -std=c++17 \
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-I. \
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--bind \
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--no-entry \
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--pre-js $BASE_DIR/helper.js \
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--pre-js $BASE_DIR/chaining.js \
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-fno-rtti -fno-exceptions -DEMSCRIPTEN_HAS_UNBOUND_TYPE_NAMES=0 \
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$WASM_CONF \
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-s ERROR_ON_UNDEFINED_SYMBOLS=1 \
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-s EXPORT_NAME="PathKitInit" \
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-s MODULARIZE=1 \
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-s NO_EXIT_RUNTIME=1 \
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-s NO_FILESYSTEM=1 \
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-s STRICT=1 \
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-s WARN_UNALIGNED=1 \
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$OUTPUT \
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$BASE_DIR/pathkit_wasm_bindings.cpp \
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${BUILD_DIR}/libpathkit.a
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if [[ $@ == *serve* ]]; then
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pushd $BUILD_DIR
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python serve.py
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fi
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