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https://github.com/encounter/dawn-cmake.git
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a5d73ce965
This is a major reworking of this transform. The old transform code was getting unwieldy, with part of the complication coming from the handling of multiple return statements. By generating a wrapper function instead, we can avoid a lot of this complexity. The original entry point function is stripped of all shader IO attributes (as well as `stage` and `workgroup_size`), but the body is left unmodified. A new entry point wrapper function is introduced which calls the original function, packing/unpacking the shader inputs as necessary, and propagates the result to the corresponding shader outputs. The new code has been refactored to use a state object with the different parts of the transform split into separate functions, which makes it much more manageable. Fixed: tint:1076 Bug: tint:920 Change-Id: I3490a0ea7a3509a4e198ce730e476516649d8d96 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60521 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
28 lines
775 B
HLSL
28 lines
775 B
HLSL
cbuffer cbuffer_constants : register(b0, space0) {
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uint4 constants[1];
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};
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Texture2DArray<float4> myTexture : register(t1, space0);
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RWByteAddressBuffer result : register(u3, space0);
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struct tint_symbol_1 {
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uint3 GlobalInvocationID : SV_DispatchThreadID;
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};
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void main_inner(uint3 GlobalInvocationID) {
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uint flatIndex = ((((2u * 2u) * GlobalInvocationID.z) + (2u * GlobalInvocationID.y)) + GlobalInvocationID.x);
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flatIndex = (flatIndex * 1u);
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float4 texel = myTexture.Load(int4(int3(int2(GlobalInvocationID.xy), 0), 0));
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{
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for(uint i = 0u; (i < 1u); i = (i + 1u)) {
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result.Store((4u * (flatIndex + i)), asuint(texel.r));
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}
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}
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}
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[numthreads(1, 1, 1)]
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void main(tint_symbol_1 tint_symbol) {
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main_inner(tint_symbol.GlobalInvocationID);
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return;
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}
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