Support RGB -> BGRX copies in copySubImage.

This was showing up in the following test for me on OSX: IOSurfaceClientBufferTest.CopySubImageToBGRX8888IOSurface/ES2_Vulkan_SwiftShader Test: angle_end2end_tests on OSX 10.15 Bug: angleproject:5147 Change-Id: I666dc832e8be33cde1617c849990c6092f4e2240 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2462041Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

Support RGB -> BGRX copies in copySubImage.
57f86257 · Jamie Madill · Commit Bot · 4dae43d8 · 57f86257
Commit 57f86257 authored Oct 08, 2020 by Jamie Madill Committed by Commit Bot Oct 08, 2020
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validationES2.cpp src/libANGLE/validationES2.cpp +1 -0

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--- a/src/libANGLE/validationES2.cpp
+++ b/src/libANGLE/validationES2.cpp
@@ -449,6 +449,7 @@ bool ValidateES2CopyTexImageParameters(const Context *context,
                    colorbufferFormat != GL_RGBA8_OES && colorbufferFormat != GL_RGB32F &&
                    colorbufferFormat != GL_RGBA32F && colorbufferFormat != GL_BGRA8_EXT &&
                    colorbufferFormat != GL_BGR5_A1_ANGLEX &&
+                    colorbufferFormat != GL_BGRX8_ANGLEX &&
                    !Valid3to4ComponentFloatColorBufferFormat(context, colorbufferFormat))
                {
                    context->validationError(GL_INVALID_OPERATION, kInvalidFormat);