Commit 0c5a55a58b454b1d05989ba5a0aebb6c8da9e3a6
2020-12-17T14:52:59
Vulkan: MapBufferRange should avoid wait if INVALIDATE_BUFFER is set If glMapBufferRange is called with GL_MAP_INVALIDATE_BUFFER_BIT bit set, caller indicates that it don't care about the previous content. If the buffer is busy, instead of wait for GPU to finish and then map the buffer, we should just allocate a new memory and return it. brawl_stars is hitting this case. With this CL, the frame time is cutting to half on the pixel device. Bug: b/175905404 Change-Id: If1220f07ebf53dd28fe6a4732eaba84e2e57598e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2597784 Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Charlie Lao <cclao@google.com>