kc3-lang/angle

2025-01-29T15:58:04

Vulkan: Use single VkEvent to track depth/stencil and color attachment Right now ANGLE uses two VkCmdSetEvent calls to synchronize color and depth attachments in a render pass, one for color attachment and another for depth/stencil attachment. This is inefficient. ARM engineers confirmed combining both into one event with a combined stage mask (VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT | kAllDepthStencilPipelineStageFlags) should not negatively impact performance. This CL merges depth/stencil related events into color attachment. The benefit of this is that for most render passes, you will see one less VkEvent which translates to reduced overhead. Bug: b/393150736 Change-Id: I0808b4dfd0b91efaaa2af649fef8bb02abbb3039 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6187980 Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Charlie Lao <cclao@google.com>