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97668c8c37
Add `transform::DecomposeStridedMatrix`, which replaces matrix members of storage or uniform buffer structures, that have a [[stride]] decoration, into an array of N column vectors. This is required to correctly handle `mat2x2` matrices in UBOs, as std140 rules will expect a default stride of 16 bytes, when in WGSL the default structure layout expects a stride of 8 bytes. Bug: tint:1047 Change-Id: If5ca3c6ec087bbc1ac31a8d9a657b99bf34042a4 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/59840 Reviewed-by: David Neto <dneto@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
12 lines
195 B
WebGPU Shading Language
12 lines
195 B
WebGPU Shading Language
[[block]]
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struct SSBO {
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m : mat2x2<f32>;
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};
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[[group(0), binding(0)]] var<storage, read_write> ssbo : SSBO;
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[[stage(compute), workgroup_size(1)]]
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fn f() {
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let v = ssbo.m;
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ssbo.m = v;
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}
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