Commit c0aa61082d7dcdbf70ed2fbeeb7d4b5053c9b87c
2021-09-17T16:22:55
Add new GL_RGBX8_ANGLEX format Currently, IOSurface objects using {GL_RGB, GL_UNSIGNED_BYTE} are natively represented with GL_BGRX8_ANGLEX, which we use instead of other RGBA formats in order to avoid issues when a canvas uses 'no alpha': https://source.chromium.org/chromium/chromium/src/+/main:third_party/swiftshader/third_party/angle/angle/src/libANGLE/renderer/vulkan/mac/IOSurfaceSurfaceVkMac.mm;l=44 This unfortunately causes some other issues because of the implicit RGB <-> BGR conversion like type mismatches in subresource updates. This CL adds a new type, RGBX8, which will be usable by IOSurface objects and which behaves exactly like the BGRX8 format with the B and R channels flipped. Bug: chromium:1209250 Change-Id: I345eadc8addd05a0964cae30d89c20005479e37b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3188910 Commit-Queue: Alexis Hétu <sugoi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>