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Hash : b23bf47c
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Date : 2023-01-25T18:50:40
Reland "Metal: rewrite default uniforms and uniform blocks" Instead of rewriting uniforms in shaders to match std140 layout, re-pack incoming uniform blocks' std140 packed variables to match Metal's layout. This change intorduces a new BlockLayoutEncoder for Metal types The block encoder handles packing typically larger GL types (bools) into smaller types, and adding support for more compressed matrix types. Since we no longer need to do shader-time packing and unpacking of data from std140 padded structs, complicated shader transformations have been removed. This patch greatly reduces register pressure, especially when working with shaders with arrays of previously expanded types. (Vec3's) Reland: Fix an issue where the default uniform block's final size was not aligned to the default uniform block's alignment requirements, causing crashes with the debug layer enabled. Bug: angleproject:7137 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3733524 Commit-Queue: Kyle Piddington <kpiddington@apple.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org> Change-Id: I89d3b817675486fde73b91b0be0f4c25986d4ba5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4209867
