1fa54044ef
Cached references to the WASM heap buffer are invalid following memory growth: https://github.com/emscripten-core/emscripten/issues/6747#issuecomment-400081465. This change replaces references to the cached CanvasKit.buffer with direct references to CanvasKit.HEAPU8.buffer. The symptom of this bug is a Javascript error thrown in the Chrome console: "Uncaught TypeError: Cannot perform Construct on a neutered ArrayBuffer", causing the operation in question to fail. Bug: NONE Change-Id: I27462e80db1d33e0e77ee7295b25039c9036d2e2 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/264477 Reviewed-by: Kevin Lubick <kjlubick@google.com> |
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|---|---|---|
| .. | ||
| canvaskit | ||
| fonts | ||
| htmlcanvas | ||
| perf | ||
| tests | ||
| .gitignore | ||
| canvaskit_bindings.cpp | ||
| CHANGELOG.md | ||
| compile.sh | ||
| cpu.js | ||
| debug.js | ||
| externs.js | ||
| font.js | ||
| gpu.js | ||
| helper.js | ||
| interface.js | ||
| karma.bench.conf.js | ||
| karma.conf.js | ||
| Makefile | ||
| package.json | ||
| paragraph_bindings.cpp | ||
| paragraph.js | ||
| particles_bindings.cpp | ||
| particles.js | ||
| pathops.js | ||
| postamble.js | ||
| preamble.js | ||
| README.md | ||
| ready.js | ||
| release.js | ||
| rt_shader.js | ||
| serve.py | ||
| skottie_bindings.cpp | ||
| skottie.js | ||
| skp.js | ||
| WasmAliases.h | ||
Prerequisites
To compile CanvasKit, you will first need to install emscripten. This
will set the environment EMSDK (among others) which is required for
compilation.
Compile and Test Locally
make release
make local-example
This will print a local endpoint for viewing the example. You can experiment
with the CanvasKit API by modifying ./canvaskit/example.html and refreshing
the page. For some more experimental APIs, there's also ./canvaskit/extra.html.
For other available build targets, see Makefile and compile.sh.
For example, building a stripped-down version of CanvasKit with no text support or
any of the "extras", one might run:
./compile.sh no_skottie no_particles no_font
Such a stripped-down version is about half the size of the default release build.