kc3-lang/angle

2022-07-26T21:16:14

Vulkan: Optimize transform feedback buffer tracking Prior to this CL, if transform feedback was active at the time of render pass closure, its buffers were cached in ContextVk. Later, these buffers were used to close the render pass if they were used for any other reason (such as vertex attribute). However, this meant that the render pass could close unnecessarily if transform feedback was ended right after the render pass is closed. The closure of the render pass was an awkward place to cache the used transform feedback buffers (because at that point, the buffers are actually no longer used). Instead, this change makes sure that the buffers are cached when transform feedback buffers are first used by the render pass, and the cache is cleared at the end of the render pass. Bug: angleproject:4622 Change-Id: I31c0a1e20d48f2e261e2cf37adb0a46db683e6fb Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3788309 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>