Commit c759b8b4388b1859b80ab7495074e8e9e7eef756
2019-01-03T15:16:50
Vulkan: More Vertex Array optimizations. Inlines a number of Vulkan vertex array methods. Also changes the way vertex buffers are bound. Note that Vulkan doesn't support NULL buffer bindings. Thus we create an emulated NULL buffer to work around the problem of having gaps in the bound vertex buffers. This allows us to use a single bind call for ranges of vertex buffers even when there are gaps. Also changes how vertex array dirty bits are reset. Instead of calling memset to clear the affected buffers we pass a mutable pointer to the Vertex Array sync state. This allows us to only reset the dirty bits that we sync. This saves on the memory clearing time. Improves perf by about 10% in the Vulkan VBO state change test. Bug: angleproject:3014 Change-Id: Ib7b742dff7897fc891606a652ea0b64255a24c86 Reviewed-on: https://chromium-review.googlesource.com/c/1390360 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>