Bug 120816
| Summary: | Filters buffers should track whether there is any non-1 alpha, and avoid operations on the alpha channel if necessary | ||
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| Product: | WebKit | Reporter: | Simon Fraser (smfr) <simon.fraser> |
| Component: | Layout and Rendering | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | dino, krit |
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Simon Fraser (smfr)
Filters like blur do work on the alpha channel bytes, but in many cases the alpha channel is going to be all 255, and we could avoid doing any math on it (e.g. no point blurring all-255 alpha).
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