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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>
60 lines
1.1 KiB
HLSL
60 lines
1.1 KiB
HLSL
struct tint_symbol {
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int value : SV_Target0;
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};
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int main0_inner() {
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return 1;
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}
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tint_symbol main0() {
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const int inner_result = main0_inner();
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tint_symbol wrapper_result = (tint_symbol)0;
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wrapper_result.value = inner_result;
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return wrapper_result;
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}
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struct tint_symbol_1 {
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uint value : SV_Target1;
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};
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uint main1_inner() {
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return 1u;
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}
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tint_symbol_1 main1() {
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const uint inner_result_1 = main1_inner();
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tint_symbol_1 wrapper_result_1 = (tint_symbol_1)0;
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wrapper_result_1.value = inner_result_1;
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return wrapper_result_1;
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}
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struct tint_symbol_2 {
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float value : SV_Target2;
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};
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float main2_inner() {
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return 1.0f;
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}
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tint_symbol_2 main2() {
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const float inner_result_2 = main2_inner();
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tint_symbol_2 wrapper_result_2 = (tint_symbol_2)0;
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wrapper_result_2.value = inner_result_2;
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return wrapper_result_2;
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}
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struct tint_symbol_3 {
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float4 value : SV_Target3;
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};
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float4 main3_inner() {
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return float4(1.0f, 2.0f, 3.0f, 4.0f);
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}
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tint_symbol_3 main3() {
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const float4 inner_result_3 = main3_inner();
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tint_symbol_3 wrapper_result_3 = (tint_symbol_3)0;
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wrapper_result_3.value = inner_result_3;
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return wrapper_result_3;
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}
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