mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-16 04:11:25 +00:00
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>
74 lines
1.8 KiB
HLSL
74 lines
1.8 KiB
HLSL
void set_float4(inout float4 vec, int idx, float val) {
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vec = (idx.xxxx == int4(0, 1, 2, 3)) ? val.xxxx : vec;
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}
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cbuffer cbuffer_x_6 : register(b0, space0) {
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uint4 x_6[1];
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};
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static float4 x_GLF_color = float4(0.0f, 0.0f, 0.0f, 0.0f);
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void main_1() {
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int k = 0;
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int GLF_dead0j = 0;
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int donor_replacementGLF_dead0stack[10] = (int[10])0;
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int donor_replacementGLF_dead0top = 0;
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int x_54 = 0;
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float4 matrix_b = float4(0.0f, 0.0f, 0.0f, 0.0f);
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int b = 0;
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k = 0;
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{
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for(; (k < 4); k = (k + 1)) {
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const float x_62 = asfloat(x_6[0].y);
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if ((0.0f > x_62)) {
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GLF_dead0j = 1;
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while (true) {
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const int x_13 = donor_replacementGLF_dead0stack[0];
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if ((1 <= x_13)) {
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} else {
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break;
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}
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}
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if (((donor_replacementGLF_dead0top >= 0) & (donor_replacementGLF_dead0top < 9))) {
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const int x_17 = (donor_replacementGLF_dead0top + 1);
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donor_replacementGLF_dead0top = x_17;
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x_54 = x_17;
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} else {
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x_54 = 0;
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}
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donor_replacementGLF_dead0stack[x_54] = 1;
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}
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matrix_b = float4(0.0f, 0.0f, 0.0f, 0.0f);
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b = 3;
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{
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for(; (b >= 0); b = (b - 1)) {
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const int x_20 = b;
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const float x_87 = matrix_b[b];
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set_float4(matrix_b, x_20, (x_87 - 1.0f));
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}
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}
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}
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}
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x_GLF_color = float4(1.0f, 0.0f, 0.0f, 1.0f);
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return;
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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 {
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float4 x_GLF_color_1 : SV_Target0;
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};
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main_out main_inner() {
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main_1();
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const main_out tint_symbol_2 = {x_GLF_color};
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return tint_symbol_2;
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}
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tint_symbol main() {
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const main_out inner_result = main_inner();
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tint_symbol wrapper_result = (tint_symbol)0;
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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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