Fix for ConvertYCbCrToRGB32 to use full range convert functions for full range data.
Some changes of libyuv are backported from newer version, to get support of full range BT.709 and BT.2020 colorspace.
Differential Revision: https://phabricator.services.mozilla.com/D105937
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
Also, add `clang-format off` directives to files which are ignored by
.clang-format-ignore so that the editor isn't trying to reformat them
Differential Revision: https://phabricator.services.mozilla.com/D76217
YUVColorSpace is inseparable from the bit depth as the matrix coefficients to be calculated need the bit depth information.
So let's put the two types together. gfx namespace also makes more sense as that's where we find IntRect, IntSize and other.
The extent of the changes highlight how much similar data structures are duplicated across the code, to the point it's scary.
Differential Revision: https://phabricator.services.mozilla.com/D25347
--HG--
extra : moz-landing-system : lando
The bulk of this commit was generated by running:
run-clang-tidy.py \
-checks='-*,llvm-namespace-comment' \
-header-filter=^/.../mozilla-central/.* \
-fix
Lee Salzman
smolnar
Yuan Tong
Jon Bauman
Chun-Min Chang
Jean-Yves Avenard
karo
Sotaro Ikeda
Phil Ringnalda
Nathan Froyd
Birunthan Mohanathas
Matt Woodrow
Tim Terribe
Tom Brinkman
Oleg Romashin
Chris Double