Commit 758b12fa7e671b9475fcf926c4c51e725cf945cc
2019-07-17T14:55:38
Filter out redundant depth&stencil state updates 1. Compare updating values with active ones at frontend when depth&stencil related gl call happens and do not set any unnecessary dirty bits. 2. Remove d3d and gl backends' checking of depth&stencil states when detect any dirty bits, as it is now being done at frontend. 3. Modification to graphics pipeline description update, make sure it syncs with gl::State initial value. 4. Change gl_vk::CullMode return type to VkCullModeFlagBits, as it only represents single value. Bug: angleproject:3700 Change-Id: Id3aa5186455ee3a10a9c147edad13944e3e41098 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1706903 Commit-Queue: Jiacheng Lu <lujc@google.com> Reviewed-by: Tobin Ehlis <tobine@google.com>