зеркало из https://github.com/mozilla/gecko-dev.git
b7811b117b
This patch implements the transparency support for AVIF image files.
To convert the decoded YCbCr and Alpha data to RGBA, a function named
`ConvertYCbCrAToARGB` is created to do this job in the following
procedure:
ConvertYCbCrAToARGB:
If the layout of the YCbCr is I420
Calling libyuv::I420AlphaToARGB
Else
Fill RGB data converted by ConvertYCbCrToRGB in ARGB buffer first
Insert the alpha data to ARGB buffer
On the other hand, this patch refactors the nsAVIFDecoder a bit to make
the lifetime of the parsed data and decoded image data clearer. They
won't live longer than Parser object and {Dav1d, AOM}Decoder object.
This should improve the code readability.
This patch also adds a transparent image test (TransparentAVIFTestCase)
to check the FLAG_HAS_TRANSPARENCY is posted or not. The test image file
`transparent.avif` is from Bug 1654462.
Differential Revision: https://phabricator.services.mozilla.com/D98951
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|---|---|---|
| .. | ||
| Common.cpp | ||
| Common.h | ||
| TestADAM7InterpolatingFilter.cpp | ||
| TestAnimationFrameBuffer.cpp | ||
| TestBlendAnimationFilter.cpp | ||
| TestContainers.cpp | ||
| TestCopyOnWrite.cpp | ||
| TestDecodeToSurface.cpp | ||
| TestDecoders.cpp | ||
| TestDecodersPerf.cpp | ||
| TestDeinterlacingFilter.cpp | ||
| TestDownscalingFilter.cpp | ||
| TestDownscalingFilterNoSkia.cpp | ||
| TestFrameAnimator.cpp | ||
| TestLoader.cpp | ||
| TestMetadata.cpp | ||
| TestRemoveFrameRectFilter.cpp | ||
| TestSourceBuffer.cpp | ||
| TestStreamingLexer.cpp | ||
| TestSurfaceCache.cpp | ||
| TestSurfacePipeIntegration.cpp | ||
| TestSurfaceSink.cpp | ||
| TestSwizzleFilter.cpp | ||
| animated-with-extra-image-sub-blocks.gif | ||
| blend.gif | ||
| blend.png | ||
| blend.webp | ||
| bug-1655846.avif | ||
| corrupt-with-bad-bmp-height.ico | ||
| corrupt-with-bad-bmp-width.ico | ||
| corrupt-with-bad-ico-bpp.ico | ||
| corrupt.jpg | ||
| downscaled.avif | ||
| downscaled.bmp | ||
| downscaled.gif | ||
| downscaled.ico | ||
| downscaled.icon | ||
| downscaled.jpg | ||
| downscaled.png | ||
| downscaled.webp | ||
| first-frame-green.gif | ||
| first-frame-green.png | ||
| first-frame-green.webp | ||
| first-frame-padding.gif | ||
| green-1x1-truncated.gif | ||
| green-large-bmp.ico | ||
| green-large-png.ico | ||
| green-multiple-sizes.ico | ||
| green.avif | ||
| green.bmp | ||
| green.gif | ||
| green.icc_srgb.webp | ||
| green.ico | ||
| green.icon | ||
| green.jpg | ||
| green.png | ||
| green.webp | ||
| invalid-truncated-metadata.bmp | ||
| large.avif | ||
| large.webp | ||
| moz.build | ||
| multilayer.avif | ||
| no-frame-delay.gif | ||
| perf_cmyk.jpg | ||
| perf_gray.jpg | ||
| perf_gray.png | ||
| perf_gray_alpha.png | ||
| perf_srgb.gif | ||
| perf_srgb.png | ||
| perf_srgb_alpha.png | ||
| perf_srgb_alpha_lossless.webp | ||
| perf_srgb_alpha_lossy.webp | ||
| perf_srgb_lossless.webp | ||
| perf_srgb_lossy.webp | ||
| perf_ycbcr.jpg | ||
| rle4.bmp | ||
| rle8.bmp | ||
| stackcheck.avif | ||
| transparent-ico-with-and-mask.ico | ||
| transparent-if-within-ico.bmp | ||
| transparent-no-alpha-header.webp | ||
| transparent.avif | ||
| transparent.gif | ||
| transparent.png | ||
| transparent.webp | ||
