tree 707c4fbff079d7ccb7e80e6a82cbee78063763cd
parent a83ecd373205ebf372aaa4d2b0338d79dffdab8e
author Bill Orr <billorr@chromium.org> 1555450866 +0000
committer Commit Bot <commit-bot@chromium.org> 1555450866 +0000

Fix graphical glitches on Windows Mixed Reality

The issue here appears to be caused by a DiscardView() call, which tells
the GPU that we are done with a render target.  The contract is that
consumers of D3D11 are supposed to write to every pixel after discard,
which we may not be always doing, depending on viewport and scale.

Removing the DiscardView call fixes the graphics corruption. It may have
a small performance penalty, but that will be addressed in issue 938146.

Bug: 952371
Change-Id: I899d146aa1b93348114aad9e03abe2a9833fd6d6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1568774
Commit-Queue: Bill Orr <billorr@chromium.org>
Reviewed-by: Klaus Weidner <klausw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#651465}