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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>
85 lines
2.7 KiB
Plaintext
85 lines
2.7 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct tint_padded_array_element {
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/* 0x0000 */ float el;
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/* 0x0004 */ int8_t tint_pad[12];
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};
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struct tint_array_wrapper {
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/* 0x0000 */ tint_padded_array_element arr[2];
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};
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struct buf1 {
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/* 0x0000 */ tint_array_wrapper x_GLF_uniform_float_values;
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};
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struct buf2 {
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/* 0x0000 */ float zero;
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};
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struct tint_padded_array_element_1 {
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/* 0x0000 */ int el;
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/* 0x0004 */ int8_t tint_pad_1[12];
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};
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struct tint_array_wrapper_1 {
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/* 0x0000 */ tint_padded_array_element_1 arr[2];
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};
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struct buf0 {
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/* 0x0000 */ tint_array_wrapper_1 x_GLF_uniform_int_values;
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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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bool func_vf2_(constant buf1& x_8, constant buf2& x_10, thread float2* const pos) {
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float const x_62 = (*(pos)).x;
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float const x_64 = x_8.x_GLF_uniform_float_values.arr[0].el;
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if ((x_62 < x_64)) {
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return true;
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}
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float const x_69 = (*(pos)).y;
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float const x_71 = x_8.x_GLF_uniform_float_values.arr[0].el;
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if ((x_69 > x_71)) {
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return false;
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}
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float const x_76 = x_10.zero;
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float const x_78 = x_8.x_GLF_uniform_float_values.arr[1].el;
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if ((x_76 > x_78)) {
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return true;
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}
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return true;
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}
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void main_1(constant buf1& x_8, constant buf2& x_10, constant buf0& x_13, thread float4* const tint_symbol_3, thread float4* const tint_symbol_4) {
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float2 param = 0.0f;
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float4 const x_42 = *(tint_symbol_3);
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param = float2(x_42.x, x_42.y);
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bool const x_44 = func_vf2_(x_8, x_10, &(param));
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if (x_44) {
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discard_fragment();
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}
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int const x_48 = x_13.x_GLF_uniform_int_values.arr[0].el;
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int const x_51 = x_13.x_GLF_uniform_int_values.arr[1].el;
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int const x_54 = x_13.x_GLF_uniform_int_values.arr[1].el;
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int const x_57 = x_13.x_GLF_uniform_int_values.arr[0].el;
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*(tint_symbol_4) = float4(float(x_48), float(x_51), float(x_54), float(x_57));
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return;
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}
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main_out tint_symbol_inner(constant buf1& x_8, constant buf2& x_10, constant buf0& x_13, 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(x_8, x_10, x_13, 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]], constant buf1& x_8 [[buffer(1)]], constant buf2& x_10 [[buffer(2)]], constant buf0& x_13 [[buffer(0)]]) {
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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(x_8, x_10, x_13, 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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