bd64f18947
Introduce sksg::BlendModeEffect and use to wrap Skottie layers based on their "bm" property. Depending on the presence of non-trivial layer blend modes and the nature of the destination buffer (fully transparent vs. unknown/pre-filled), we may now need to render animation frames into a separate layer for correct compositing. Track the presence of non-trivial layer blend modes such that we only incur this extra layer overhead when needed. Also allow clients to pass a "drawing to fully transparent buffer" hint such that we can avoid the extra layer even when blend modes are present. Change-Id: Iaf645878666da4349d0bef8890bbecad23a0aa9b Reviewed-on: https://skia-review.googlesource.com/c/194840 Reviewed-by: Mike Reed <reed@google.com> Commit-Queue: Florin Malita <fmalita@chromium.org> |
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