| #!/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 ${BASH_SOURCE[0]}) && pwd` |
| HTML_SHELL=$BASE_DIR/shell.html |
| BUILD_DIR=${BUILD_DIR:="out/pathkit"} |
| 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 |
| |
| # 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/../.. |
| |
| echo "Putting output in $BUILD_DIR (pwd = `pwd`)" |
| |
| # Run this from $SKIA_HOME, not from the directory this file is in. |
| if [[ ! -d ./src ]]; then |
| echo "Cannot locate Skia source. Is the source checkout okay? Exiting." |
| exit 1 |
| fi |
| |
| if [[ $@ == *help* ]]; then |
| echo "By default, this script builds a production WASM build of PathKit." |
| echo "" |
| echo "It is put in ${BUILD_DIR}, configured by the BUILD_DIR environment" |
| echo "variable. Additionally, the EMSDK environment variable must be set." |
| echo "This script takes several optional parameters:" |
| echo " test = Make a build suitable for running tests or profiling" |
| echo " debug = Make a build suitable for debugging (defines SK_DEBUG)" |
| echo " asm.js = Build for asm.js instead of WASM (very experimental)" |
| echo " serve = starts a webserver allowing a user to navigate to" |
| echo " localhost:8000/pathkit.html to view the demo page." |
| exit 0 |
| fi |
| |
| |
| # Use -O0 for larger builds (but generally quicker) |
| # Use -Oz for (much slower, but smaller/faster) production builds |
| export EMCC_CLOSURE_ARGS="--externs $BASE_DIR/externs.js " |
| RELEASE_CONF="-Oz --closure 1 -s EVAL_CTORS=1 -DSK_RELEASE" |
| # It is very important for the -DSK_RELEASE/-DSK_DEBUG to match on the libskia.a, otherwise |
| # things like SKDEBUGCODE are sometimes compiled in and sometimes not, which can cause headaches |
| # like sizeof() mismatching between .cpp files and .h files. |
| EXTRA_CFLAGS="\"-DSK_RELEASE\"" |
| if [[ $@ == *test* ]]; then |
| echo "Building a Testing/Profiling build" |
| RELEASE_CONF="-O2 --profiling -DPATHKIT_TESTING -DSK_RELEASE" |
| elif [[ $@ == *debug* ]]; then |
| echo "Building a Debug build" |
| EXTRA_CFLAGS="\"-DSK_DEBUG\"" |
| RELEASE_CONF="-O0 --js-opts 0 -s SAFE_HEAP=1 -s ASSERTIONS=1 -g3 -DPATHKIT_TESTING -DSK_DEBUG" |
| fi |
| |
| WASM_CONF="-s WASM=1" |
| if [[ $@ == *asm.js* ]]; then |
| echo "Building with asm.js instead of WASM" |
| WASM_CONF="-s WASM=0 -s ALLOW_MEMORY_GROWTH=1" |
| fi |
| |
| OUTPUT="-o $BUILD_DIR/pathkit.js" |
| |
| source $EMSDK/emsdk_env.sh |
| EMCC=`which emcc` |
| EMCXX=`which em++` |
| EMAR=`which emar` |
| |
| # 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 |
| |
| echo "Compiling bitcode" |
| |
| ./bin/fetch-gn |
| ./bin/gn gen ${BUILD_DIR} \ |
| --args="cc=\"${EMCC}\" \ |
| cxx=\"${EMCXX}\" \ |
| ar=\"${EMAR}\" \ |
| extra_cflags=[\"-s\", \"WARN_UNALIGNED=1\", |
| \"-s\", \"MAIN_MODULE=1\", |
| ${EXTRA_CFLAGS} |
| ] \ |
| is_debug=false \ |
| is_official_build=true \ |
| is_component_build=false \ |
| werror=true \ |
| target_cpu=\"wasm\" " |
| |
| ${NINJA} -C ${BUILD_DIR} libpathkit.a |
| |
| echo "Generating WASM" |
| |
| ${EMCXX} $RELEASE_CONF -std=c++17 \ |
| -I. \ |
| --bind \ |
| --no-entry \ |
| --pre-js $BASE_DIR/helper.js \ |
| --pre-js $BASE_DIR/chaining.js \ |
| -fno-rtti -fno-exceptions -DEMSCRIPTEN_HAS_UNBOUND_TYPE_NAMES=0 \ |
| $WASM_CONF \ |
| -s ERROR_ON_UNDEFINED_SYMBOLS=1 \ |
| -s EXPORT_NAME="PathKitInit" \ |
| -s MODULARIZE=1 \ |
| -s NO_EXIT_RUNTIME=1 \ |
| -s NO_FILESYSTEM=1 \ |
| -s STRICT=1 \ |
| $OUTPUT \ |
| $BASE_DIR/pathkit_wasm_bindings.cpp \ |
| ${BUILD_DIR}/libpathkit.a |
| |
| if [[ $@ == *serve* ]]; then |
| pushd $BUILD_DIR |
| python serve.py |
| fi |
| |