Bug 85677
| Summary: | [chromium] Implement order-dependent damage tracking | ||
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| Product: | WebKit | Reporter: | Shawn Singh <shawnsingh> |
| Component: | Layout and Rendering | Assignee: | Shawn Singh <shawnsingh> |
| Status: | RESOLVED WONTFIX | ||
| Severity: | Normal | CC: | enne, piman |
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Shawn Singh
https://bugs.webkit.org/show_bug.cgi?id=85421 was a quick-fix for a bug where changes in sibling stacking order was not causing damage.
The solution in that patch was to consider stacking-order changes as "property changes" on layers. However, this is not an ideal clean correct design. The better design is for damage tracker to actually track changes in an order-dependent manner (assuming it turns out to be practical).
Indeed, the damage tracker is already assuming order-dependence (expanding damage due to filters assumed the layer list is already sorted in back-to-front drawing order).
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| Add attachment proposed patch, testcase, etc. |
Shawn Singh
moved this bug to https://code.google.com/p/chromium/issues/detail?id=230050