mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-15 20:01:22 +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>
60 lines
1.5 KiB
HLSL
60 lines
1.5 KiB
HLSL
struct struct_base {
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int data;
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int leftIndex;
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int rightIndex;
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};
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static struct_base struct_array[3] = (struct_base[3])0;
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cbuffer cbuffer_x_8 : register(b0, space0) {
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uint4 x_8[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 index = 0;
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const struct_base tint_symbol_2 = {1, 1, 1};
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const struct_base tint_symbol_3 = {1, 1, 1};
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const struct_base tint_symbol_4 = {1, 1, 1};
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const struct_base tint_symbol_5[3] = {tint_symbol_2, tint_symbol_3, tint_symbol_4};
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struct_array = tint_symbol_5;
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index = 1;
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struct_array[1].rightIndex = 1;
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const int x_39 = struct_array[1].leftIndex;
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if ((x_39 == 1)) {
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const float x_45 = asfloat(x_8[0].x);
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const int x_48 = struct_array[int(x_45)].rightIndex;
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index = x_48;
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} else {
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const float x_50 = asfloat(x_8[0].y);
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const int x_53 = struct_array[int(x_50)].leftIndex;
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index = x_53;
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}
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const int x_55 = struct_array[1].leftIndex;
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if ((x_55 == 1)) {
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x_GLF_color = float4(1.0f, 0.0f, 0.0f, 1.0f);
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} else {
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x_GLF_color = float4(1.0f, 1.0f, 1.0f, 1.0f);
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}
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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_6 = {x_GLF_color};
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return tint_symbol_6;
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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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