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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>
113 lines
3.3 KiB
Plaintext
113 lines
3.3 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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float2 arr[17];
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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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float func_(constant buf0& x_7, thread float4* const tint_symbol_3) {
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int x = 0;
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float const x_99 = (*(tint_symbol_3)).x;
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if ((x_99 < 1.0f)) {
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return 5.0f;
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}
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float const x_104 = x_7.injectionSwitch.x;
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float const x_106 = x_7.injectionSwitch.y;
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if ((x_104 > x_106)) {
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return 1.0f;
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}
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float const x_111 = x_7.injectionSwitch.x;
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x = int(x_111);
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float const x_114 = x_7.injectionSwitch.x;
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int const x_118 = x;
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x = as_type<int>((as_type<uint>(x_118) + as_type<uint>(as_type<int>((as_type<uint>(int(clamp(x_114, 0.0f, 1.0f))) * as_type<uint>(3))))));
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int const x_120 = x;
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return (5.0f + float(x_120));
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}
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void main_1(constant buf0& x_7, thread float4* const tint_symbol_4, thread float4* const tint_symbol_5) {
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int i = 0;
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int j = 0;
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tint_array_wrapper data = {};
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i = 0;
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while (true) {
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int const x_48 = i;
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float const x_50 = x_7.injectionSwitch.x;
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if ((x_48 < as_type<int>((as_type<uint>(4) + as_type<uint>(int(x_50)))))) {
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} else {
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break;
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}
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float const x_56 = (*(tint_symbol_4)).x;
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if ((x_56 >= 0.0f)) {
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j = 0;
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while (true) {
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bool x_81 = false;
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bool x_82_phi = false;
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int const x_64 = j;
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if ((x_64 < 4)) {
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} else {
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break;
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}
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int const x_67 = j;
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int const x_69 = i;
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float const x_71 = func_(x_7, tint_symbol_4);
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data.arr[as_type<int>((as_type<uint>(as_type<int>((as_type<uint>(4) * as_type<uint>(x_67)))) + as_type<uint>(x_69)))].x = x_71;
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float const x_74 = data.arr[0].x;
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bool const x_75 = (x_74 == 5.0f);
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x_82_phi = x_75;
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if (!(x_75)) {
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float const x_80 = data.arr[15].x;
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x_81 = (x_80 == 5.0f);
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x_82_phi = x_81;
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}
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bool const x_82 = x_82_phi;
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if (x_82) {
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*(tint_symbol_5) = float4(1.0f, 0.0f, 0.0f, 1.0f);
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} else {
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*(tint_symbol_5) = float4(0.0f, 0.0f, 0.0f, 0.0f);
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}
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float const x_87 = x_7.injectionSwitch.x;
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float const x_89 = x_7.injectionSwitch.y;
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if ((x_87 > x_89)) {
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return;
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}
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{
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int const x_93 = j;
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j = as_type<int>((as_type<uint>(x_93) + as_type<uint>(1)));
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}
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}
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}
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{
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int const x_95 = i;
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i = as_type<int>((as_type<uint>(x_95) + as_type<uint>(1)));
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}
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}
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return;
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}
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main_out tint_symbol_inner(constant buf0& x_7, float4 gl_FragCoord_param, thread float4* const tint_symbol_6, thread float4* const tint_symbol_7) {
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*(tint_symbol_6) = gl_FragCoord_param;
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main_1(x_7, tint_symbol_6, tint_symbol_7);
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main_out const tint_symbol_2 = {.x_GLF_color_1=*(tint_symbol_7)};
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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_7 [[buffer(0)]]) {
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thread float4 tint_symbol_8 = 0.0f;
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thread float4 tint_symbol_9 = 0.0f;
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main_out const inner_result = tint_symbol_inner(x_7, gl_FragCoord_param, &(tint_symbol_8), &(tint_symbol_9));
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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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