Add asyncRescaleAndReadPixeksYUVA420 methods
New methods are added to SkImage, SkSurface`, and skgpu::graphite::context named asyncRescaleAndReadPixeksYUVA420. These function identically to the existing asyncRescaleAndReadPixelsYUV420 methods but return a fourth plane containing alpha at full resolution.
Change-Id: I96d02fa3b5e7827c990bd13648829db413d7be2d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/721976
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <briansalomon@gmail.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
27 files changed
