Commit Graph

2 Commits

Author SHA1 Message Date
Bryce Thomas
1fa54044ef rm CanvasKit.HEAPU8.buffer caching (fix UAF bug).
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>
2020-01-15 14:48:36 +00:00
Kevin Lubick
933ea8c301 [canvaskit] Add build flag for pathops
This fixes up some other build flag options:
 - font-specific js code is correctly omitted when no_font is set
 - SKP serialization is only compiled in debug (or with flag).


Bug: skia:9733
Change-Id: Ifdbd2ddac278cfcefa842f6d4826d5429b6ed64b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/262137
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2020-01-06 13:10:43 +00:00