tree a513ef32a4592559c0f3ce4411b3d55c3961a8de
parent 23edf955287bbb82c58762429e265897acc8cb81
author Jiawei Shao <jiawei.shao@intel.com> 1566461953 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1566461953 +0000

OpenGL: Support B2T and T2T copies with BC formats

This patch implements the creation, buffer-to-texture copies and
texture-to-texture copies with BC formats on OpenGL backend. Note that
OpenGL SPEC also has the same issue about texture-to-texture copies
with compressed textures as Vulkan SPEC, so we have to skip the related
case.

The texture-to-buffer copies with BC formats and related end2end tests
will be supported in the following patches.

BUG=dawn:42
TEST=dawn_end2end_tests

Change-Id: I76b16862259cb2df77f202ed7ed433d41aa3cd47
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/10220
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>