Commit c5b9c49c3b66a41ed5c30f0ecff1d98e33d2d480
2020-08-25T18:01:29
Vulkan: Fix optimizeRenderPassForPresent regression. gfxbench clears the depth buffer right before the swap. Even though the last draw call that presents the frame didn't ever read or write to depth, the tracking we added thought this depth write meant we had to keep the LOAD_OP as CLEAR. Instead we can refine our check to treat clears specially when enabling the depth-stencil read-only mode instead of changing how the tracking works for clears. This way the tracking can not affect other apps that don't use depth-stencil read-only loops. Also adds a regression test that counts the clears after a swap. Bug: angleproject:4959 Bug: angleproject:4979 Change-Id: I12ece6474019f7519a467f827110ad817f7d4df7 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2370364 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>