commit | e5dbd7c799313fa5e44b15b1a093d701faefab6c | [log] [tgz] |
---|---|---|
author | Bo Liu <boliu@chromium.org> | Tue Mar 14 16:58:49 2023 |
committer | Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> | Tue Mar 14 16:58:49 2023 |
tree | 9139de8d9b254c5a530bc1b29e0615ae869acfe1 | |
parent | 5e36f45d7cd6c6edcf4da7eddaf40c1edb165c80 [diff] |
slim: Implement opacity correctly Opacity applies to the whole subtree, not just the layer it is set on. Also directly applying opacity to all quads from the subtree is incorrect if those quads overlap and has to blend. The correct results requires an extra render pass where the subtree is drawn without opacity, but the extra pass is drawn with opacity. Duplicate the behavior from cc. * Implement Layer::NumDescendantsThatDrawContent which counts number of layers in a subtree (excluding the root) that draws in the structure of the tree. * Pass opacity through each level of recursion of draw, create new render pass if there are more than 2 layers that draws. * Skip subtree where opacity is 0. Bug: 1408128 Change-Id: I2eb2d825c972201a982b5be12854669b69678d0d Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4335358 Commit-Queue: Bo Liu <boliu@chromium.org> Reviewed-by: Kyle Charbonneau <kylechar@chromium.org> Cr-Commit-Position: refs/heads/main@{#1117038}
Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.
The project's web site is https://www.chromium.org.
To check out the source code locally, don't use git clone
! Instead, follow the instructions on how to get the code.
Documentation in the source is rooted in docs/README.md.
Learn how to Get Around the Chromium Source Code Directory Structure .
For historical reasons, there are some small top level directories. Now the guidance is that new top level directories are for product (e.g. Chrome, Android WebView, Ash). Even if these products have multiple executables, the code should be in subdirectories of the product.
If you found a bug, please file it at https://crbug.com/new.