Commit 53371cc0a7a420f25238e23bb7f3f2191e9eee59
2021-11-01T20:25:17
Vulkan: Use optimalBufferCopyOffsetAlignment optimalBufferCopyOffsetAlignment is the optimal buffer offset alignment in bytes for vkCmdCopyBufferToImage2KHR, vkCmdCopyBufferToImage, vkCmdCopyImageToBuffer2KHR, and vkCmdCopyImageToBuffer. The per texel alignment requirements are enforced, but applications should use the optimal alignment for optimal performance and power use. To improve efficiency, this CL updates ContextVk::mStagingBuffer's alignment to the max of: - minMemoryMapAlignment - nonCoherentAtomSize - optimalBufferCopyOffsetAlignment On ARM, this is not expected to have any affect, since all three values are 0x40, but other platforms may see a benefit. Bug: angleproject:4297 Change-Id: I9185da111e09c5d782eb1dedb10369727cb9bf51 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3256007 Commit-Queue: Tim Van Patten <timvp@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com>