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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>
57 lines
1.8 KiB
Plaintext
57 lines
1.8 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct S {
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int f1;
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float2x2 f2;
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};
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struct main_out {
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float4 x_GLF_color_1;
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};
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struct tint_symbol_1 {
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float4 x_GLF_color_1 [[color(0)]];
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};
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void main_1(thread float4* const tint_symbol_3, thread float4* const tint_symbol_4) {
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float2x2 x_41 = float2x2(0.0f);
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int x_6 = 0;
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float2x2 x_42 = float2x2(0.0f);
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float2x2 x_49_phi = float2x2(0.0f);
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float const x_44 = (*(tint_symbol_3)).x;
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if ((x_44 < 0.0f)) {
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x_42 = float2x2(float2(1.0f, 2.0f), float2(3.0f, 4.0f));
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x_49_phi = float2x2(float2(1.0f, 2.0f), float2(3.0f, 4.0f));
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} else {
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x_42 = float2x2(float2(0.5f, -0.5f), float2(-0.5f, 0.5f));
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x_49_phi = float2x2(float2(0.5f, -0.5f), float2(-0.5f, 0.5f));
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}
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float2x2 const x_49 = x_49_phi;
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S const x_51 = {.f1=1, .f2=transpose(x_49)};
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int const x_52 = x_51.f1;
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x_6 = x_52;
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x_41 = x_51.f2;
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float2x2 const x_56 = x_41;
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float2x2 const x_59 = x_41;
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float2x2 const x_63 = x_41;
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float2x2 const x_66 = x_41;
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*(tint_symbol_4) = float4(float(x_52), (x_56[0u].x + x_59[1u].x), (x_63[0u].y + x_66[1u].y), float(x_52));
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return;
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}
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main_out tint_symbol_inner(float4 gl_FragCoord_param, thread float4* const tint_symbol_5, thread float4* const tint_symbol_6) {
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*(tint_symbol_5) = gl_FragCoord_param;
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main_1(tint_symbol_5, tint_symbol_6);
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main_out const tint_symbol_2 = {.x_GLF_color_1=*(tint_symbol_6)};
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return tint_symbol_2;
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}
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fragment tint_symbol_1 tint_symbol(float4 gl_FragCoord_param [[position]]) {
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thread float4 tint_symbol_7 = 0.0f;
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thread float4 tint_symbol_8 = 0.0f;
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main_out const inner_result = tint_symbol_inner(gl_FragCoord_param, &(tint_symbol_7), &(tint_symbol_8));
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tint_symbol_1 wrapper_result = {};
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wrapper_result.x_GLF_color_1 = inner_result.x_GLF_color_1;
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return wrapper_result;
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}
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