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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>
30 lines
1000 B
HLSL
30 lines
1000 B
HLSL
struct In {
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float none;
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float flat;
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float perspective_center;
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float perspective_centroid;
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float perspective_sample;
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float linear_center;
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float linear_centroid;
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float linear_sample;
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};
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struct tint_symbol_2 {
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float none : TEXCOORD0;
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nointerpolation float flat : TEXCOORD1;
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linear float perspective_center : TEXCOORD2;
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linear centroid float perspective_centroid : TEXCOORD3;
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linear sample float perspective_sample : TEXCOORD4;
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noperspective float linear_center : TEXCOORD5;
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noperspective centroid float linear_centroid : TEXCOORD6;
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noperspective sample float linear_sample : TEXCOORD7;
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};
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void main_inner(In tint_symbol) {
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}
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void main(tint_symbol_2 tint_symbol_1) {
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const In tint_symbol_3 = {tint_symbol_1.none, tint_symbol_1.flat, tint_symbol_1.perspective_center, tint_symbol_1.perspective_centroid, tint_symbol_1.perspective_sample, tint_symbol_1.linear_center, tint_symbol_1.linear_centroid, tint_symbol_1.linear_sample};
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main_inner(tint_symbol_3);
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return;
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}
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