tree e46b634dee11f5365d5b7ac12daa88d92c1648dc
parent 3af532b8a8302e063847c5d1a5ca210b0170d182
author Jiawei Shao <jiawei.shao@intel.com> 1608597536 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1608597536 +0000

GLES: Fix a bug in the impl of CopyBufferToTexture() with compressed formats

In OpenGL ES glPixelStorei() doesn't affect the execution of
glCompressedTexSubImage*D(), and GL_UNPACK_COMPRESSED_BLOCK_* is not
defined in OpenGL ES, so on the OpenGL ES backends, to implement
CopyBufferToTexture() with compressed texture formats, we can only copy
the compressed texture data once per compressed block row.

With this patch CompressedTextureBCFormatTest/* can pass on Intel Mesa
OpenGL ES driver.

BUG=dawn:42, dawn:580
TEST=dawn_end2end_tests

Change-Id: Ied84a187beaf9105d3664c4e874b3b7ddda4e4b0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/36020
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>