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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>
96 lines
2.8 KiB
Plaintext
96 lines
2.8 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct buf0 {
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/* 0x0000 */ packed_float2 injectionSwitch;
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};
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struct tint_array_wrapper {
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float arr[3];
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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(constant buf0& x_11, thread float4* const tint_symbol_3, thread tint_array_wrapper* const tint_symbol_4, thread tint_array_wrapper* const tint_symbol_5, thread float4* const tint_symbol_6) {
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int q = 0;
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int i = 0;
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int c = 0;
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q = 0;
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float const x_55 = (*(tint_symbol_3)).x;
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i = (int(x_55) % 3);
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c = 0;
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while (true) {
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int const x_14 = c;
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if ((x_14 < 3)) {
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} else {
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break;
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}
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int const x_15 = c;
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(*(tint_symbol_4)).arr[x_15] = 0.0f;
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int const x_16 = c;
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(*(tint_symbol_5)).arr[x_16] = 0.0f;
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float const x_65 = x_11.injectionSwitch.x;
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int const x_18 = q;
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switch(as_type<int>((as_type<uint>(int(x_65)) + as_type<uint>(x_18)))) {
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case 51: {
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while (true) {
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if (true) {
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} else {
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break;
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}
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}
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int const x_20 = c;
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(*(tint_symbol_4)).arr[x_20] = 1.0f;
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/* fallthrough */
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}
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case 61: {
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(*(tint_symbol_5)).arr[0] = 1.0f;
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int const x_21 = c;
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(*(tint_symbol_5)).arr[x_21] = 1.0f;
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break;
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}
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case 0: {
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q = 61;
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break;
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}
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default: {
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break;
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}
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}
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{
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int const x_22 = c;
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c = as_type<int>((as_type<uint>(x_22) + as_type<uint>(1)));
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}
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}
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int const x_24 = i;
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float const x_79 = (*(tint_symbol_5)).arr[x_24];
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int const x_25 = i;
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float const x_81 = (*(tint_symbol_4)).arr[x_25];
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int const x_26 = i;
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float const x_83 = (*(tint_symbol_4)).arr[x_26];
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*(tint_symbol_6) = float4(x_79, x_81, x_83, 1.0f);
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return;
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}
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main_out tint_symbol_inner(constant buf0& x_11, float4 gl_FragCoord_param, thread float4* const tint_symbol_7, thread tint_array_wrapper* const tint_symbol_8, thread tint_array_wrapper* const tint_symbol_9, thread float4* const tint_symbol_10) {
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*(tint_symbol_7) = gl_FragCoord_param;
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main_1(x_11, tint_symbol_7, tint_symbol_8, tint_symbol_9, tint_symbol_10);
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main_out const tint_symbol_2 = {.x_GLF_color_1=*(tint_symbol_10)};
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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]], constant buf0& x_11 [[buffer(0)]]) {
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thread float4 tint_symbol_11 = 0.0f;
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thread tint_array_wrapper tint_symbol_12 = {};
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thread tint_array_wrapper tint_symbol_13 = {};
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thread float4 tint_symbol_14 = 0.0f;
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main_out const inner_result = tint_symbol_inner(x_11, gl_FragCoord_param, &(tint_symbol_11), &(tint_symbol_12), &(tint_symbol_13), &(tint_symbol_14));
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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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