Commit 2aaeb81de37945ba5d70ebee4f2d5e36ad1dbb89
2020-10-06T17:20:29
Vulkan: loadOp=DONT_CARE + unused D/S => invalidate D/S If depth/stencil is not loaded, and it's not written to during the render pass, then treat it as if it was invalidated so storeOp can be set to DONT_CARE and its corresponding resolve attachment (if any) removed. This is especially useful for MSRTT as a resolve attachment is added at the start of render pass, and this optimization will give it a chance to undo that if depth/stencil was not actually used in the render pass. This situation can arise for example if a render pass is created for the sole purpose of clearing color. This change includes a bug fix for missing depth/stencil on*Access in the UtilsVk blit/resolve path. Bug: angleproject:4836 Change-Id: Ifc8eea3e6ffb3eb4bba19f03d1358f151ec69c44 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2453468 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>