42bae8faa4
select_xform_alpha is used to determine how the color transform should handle alpha values. In a similar way, we're using it here to determine whether to premultiply pixels before blending them. In this case, the source is unpremul, so we should be premultiplying them, but since we are compositing on an opaque frame, the dst must be opaque and select_xform_alpha returns kOpaque. As a result, we do not premultiply (and even hint to the transform that the pixels are opaque). Since this all applies to the pre-blended pixels, we should not care that the dst is opaque. So drop the call to select_xform_alpha and just use the alpha type of the source. This matches the comment on the lines above. Add the test image that failed (https://mathiasbynens.be/demo/animated-webp) Change-Id: Ibd13c1f067bdf369ce1c882d4f6057aadccfa313 Reviewed-on: https://skia-review.googlesource.com/71560 Commit-Queue: Leon Scroggins <scroggo@google.com> Reviewed-by: Mike Klein <mtklein@chromium.org> |
||
|---|---|---|
| animations | ||
| bench | ||
| bin | ||
| debugger | ||
| dm | ||
| docs | ||
| example | ||
| experimental | ||
| fuzz | ||
| gm | ||
| gn | ||
| include | ||
| infra | ||
| platform_tools | ||
| resources | ||
| samplecode | ||
| site | ||
| src | ||
| tests | ||
| third_party | ||
| tools | ||
| .clang-format | ||
| .gitignore | ||
| .gn | ||
| AUTHORS | ||
| BUILD.gn | ||
| codereview.settings | ||
| CONTRIBUTING | ||
| CQ_COMMITTERS | ||
| DEPS | ||
| Doxyfile | ||
| LICENSE | ||
| PRESUBMIT.py | ||
| public.bzl | ||
| README | ||
| README.chromium | ||
| whitespace.txt | ||
Skia is a complete 2D graphic library for drawing Text, Geometries, and Images. See full details, and build instructions, at https://skia.org.