tree 0ce4a5cf7c2573d94c86bb427ce603df5580f80c
parent 144a4fb945b61129fbc62e59f9f8abfa5c3f5d58
author Stephen White <senorblanco@chromium.org> 1651088733 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1651088733 +0000

OpenGL ES: implement support for BGRA textures and reads.

ES requires GL_EXT_texture_format_BGRA8888 or GL_APPLE_texture_format_BGRA8888 to create BGRA8 internalFormat textures, and GL_EXT_read_format_bgra to read from them. Desktop GL can swizzle back and forth from RGBA8, so keep using RGBA8 if the extension is unavailable.

Intel's implementation of GL_EXT_texture_format_BGRA8888 on ES is broken, and won't create GL_BGRA8_EXT or GL_BGRA internalFormat textures, so disable the test there and modify another test to not use BGRA textures.

Change-Id: Ia81d9ff20e2849b00379f8e01fb5d2ecfa34bd53
Bug: dawn:596, dawn:1393
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86744
Commit-Queue: Stephen White <senorblanco@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>