commit | 4b3fd166980ee106af2db6ca6a8c653fb07a517c | [log] [tgz] |
---|---|---|
author | Xianzhu Wang <wangxianzhu@chromium.org> | Wed May 06 22:07:19 2020 |
committer | Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> | Wed May 06 22:44:23 2020 |
tree | b9ddd3095318df2c428b053924f70855f7b3098b | |
parent | a794d31daf67a801d59a38a35674deeb61034a4f [diff] |
Use the backdrop filter's clip for synthetic effects and layers Previously for a synthetic effect and the associated synthesized mask layer, we used the clip that introduce the synthetic effect as their clip state, causing incorrect clipping of backdrop filters. Now use the clip of the backdrop filter for synthetic effects and layers to avoid the problem. ClipPaintPropertyNode rounded_clip ClipPaintPropertyNode rect_clip EffectPaintPropertyNode backdrop_filter clip=rect_clip The cc effect tree is like mask_isolation (backdrop filter moved here) / \ mask_effect node_for_backdrop_filter When we create the cc node for backdrop_filter, we find that there is an ancestor clip (rounded_clip) needs a synthetic effect and synthesized mask, so create mask_isolation and mask_effect nodes and a mask clip layer. To let the backdrop filter access the correct backdrop, we move the backdrop filter up to mask_isolation, requiring that mask_isolation to use the backdrop_filter's clip (rect_clip) instead of the clip (rounded_clip) that introduces the synthetic effect, to ensure the backdrop filter is correctly clipped. This in turn requires that mask_effect and the mask layer also use rect_clip as their clip state to ensure proper clip hierarchy. Bug: 1077137 Change-Id: Ib9c3cc7e8db5b1b261b3a758f2fb6680e0f5ab1f Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2183198 Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org> Reviewed-by: Philip Rogers <pdr@chromium.org> Cr-Commit-Position: refs/heads/master@{#766158}
The web-platform-tests Project is a cross-browser test suite for the Web-platform stack. Writing tests in a way that allows them to be run in all browsers gives browser projects confidence that they are shipping software that is compatible with other implementations, and that later implementations will be compatible with their implementations. This in turn gives Web authors/developers confidence that they can actually rely on the Web platform to deliver on the promise of working across browsers and devices without needing extra layers of abstraction to paper over the gaps left by specification editors and implementors.
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