mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-08-02 18:25:56 +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>
105 lines
3.1 KiB
HLSL
105 lines
3.1 KiB
HLSL
uint tint_pack2x16float(float2 param_0) {
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uint2 i = f32tof16(param_0);
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return i.x | (i.y << 16);
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}
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float4 tint_unpack4x8snorm(uint param_0) {
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int j = int(param_0);
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int4 i = int4(j << 24, j << 16, j << 8, j) >> 24;
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return clamp(float4(i) / 127.0, -1.0, 1.0);
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}
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cbuffer cbuffer_x_8 : register(b1, space0) {
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uint4 x_8[4];
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};
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cbuffer cbuffer_x_10 : register(b0, space0) {
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uint4 x_10[3];
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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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uint a = 0u;
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float4 v1 = float4(0.0f, 0.0f, 0.0f, 0.0f);
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float E = 0.0f;
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bool x_69 = false;
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bool x_85 = false;
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bool x_101 = false;
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bool x_70_phi = false;
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bool x_86_phi = false;
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bool x_102_phi = false;
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a = tint_pack2x16float(float2(1.0f, 1.0f));
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v1 = tint_unpack4x8snorm(a);
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E = 0.01f;
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const int x_43 = asint(x_8[1].x);
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const float x_45 = v1[x_43];
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const uint scalar_offset = ((16u * uint(0))) / 4;
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const float x_47 = asfloat(x_10[scalar_offset / 4][scalar_offset % 4]);
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const float x_49 = asfloat(x_10[1].x);
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const bool x_54 = (abs((x_45 - (x_47 / x_49))) < E);
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x_70_phi = x_54;
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if (x_54) {
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const uint scalar_offset_1 = ((16u * uint(0))) / 4;
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const int x_58 = asint(x_8[scalar_offset_1 / 4][scalar_offset_1 % 4]);
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const float x_60 = v1[x_58];
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const float x_62 = asfloat(x_10[2].x);
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const float x_64 = asfloat(x_10[1].x);
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x_69 = (abs((x_60 - (x_62 / x_64))) < E);
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x_70_phi = x_69;
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}
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const bool x_70 = x_70_phi;
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x_86_phi = x_70;
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if (x_70) {
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const int x_74 = asint(x_8[2].x);
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const float x_76 = v1[x_74];
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const uint scalar_offset_2 = ((16u * uint(0))) / 4;
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const float x_78 = asfloat(x_10[scalar_offset_2 / 4][scalar_offset_2 % 4]);
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const float x_80 = asfloat(x_10[1].x);
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x_85 = (abs((x_76 - (x_78 / x_80))) < E);
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x_86_phi = x_85;
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}
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const bool x_86 = x_86_phi;
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x_102_phi = x_86;
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if (x_86) {
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const int x_90 = asint(x_8[3].x);
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const float x_92 = v1[x_90];
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const float x_94 = asfloat(x_10[2].x);
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const float x_96 = asfloat(x_10[1].x);
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x_101 = (abs((x_92 - (x_94 / x_96))) < E);
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x_102_phi = x_101;
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}
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if (x_102_phi) {
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const uint scalar_offset_3 = ((16u * uint(0))) / 4;
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const int x_107 = asint(x_8[scalar_offset_3 / 4][scalar_offset_3 % 4]);
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const int x_110 = asint(x_8[1].x);
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const int x_113 = asint(x_8[1].x);
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const uint scalar_offset_4 = ((16u * uint(0))) / 4;
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const int x_116 = asint(x_8[scalar_offset_4 / 4][scalar_offset_4 % 4]);
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x_GLF_color = float4(float(x_107), float(x_110), float(x_113), float(x_116));
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} else {
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const int x_120 = asint(x_8[1].x);
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const float x_122 = v1[x_120];
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x_GLF_color = float4(x_122, x_122, x_122, x_122);
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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_3 = {x_GLF_color};
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return tint_symbol_3;
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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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