Commit e8c0aa81af87f629ae2f1c0f96bee1c7650a7075
2021-01-26T23:40:36
Vulkan: Clean up transform feedback extension pause/resume 1. The xfb counter buffer barrier issued was wrong, following a typo in the spec. This barrier is now correctly issued using the usual barrier APIs. 2. A mechanism was added to automatically pause/resume transform feedback when a program pipeline needs to be rebound. This is incorrect as it misses the xfb counter buffer barrier. The render pass is broken instead if transform feedback is active/unpaused and the program pipeline is changed. 3. The transform feedback counter buffers are now disposed of when transform feedback is ended. This avoids an unnecessary barrier that this change would have otherwise incurred (and hence render pass break) in Manhattan which repurposes the same transform feedback object. Bug: angleproject:5528 Change-Id: I1ffe8b4b8975645ba43afd70e9cdbb0765529da5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2651647 Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>