50 lines
1.8 KiB
Metal
50 lines
1.8 KiB
Metal
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Uniforms {
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float3x3 testMatrix3x3;
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half4 colorGreen;
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half4 colorRed;
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};
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struct Inputs {
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};
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struct Outputs {
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half4 sk_FragColor [[color(0)]];
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};
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thread bool operator==(const float2x2 left, const float2x2 right);
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thread bool operator!=(const float2x2 left, const float2x2 right);
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thread bool operator==(const float3x3 left, const float3x3 right);
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thread bool operator!=(const float3x3 left, const float3x3 right);
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float2x2 float2x2_from_float3x3(float3x3 x0) {
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return float2x2(float2(x0[0].xy), float2(x0[1].xy));
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}
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thread bool operator==(const float2x2 left, const float2x2 right) {
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return all(left[0] == right[0]) &&
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all(left[1] == right[1]);
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}
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thread bool operator!=(const float2x2 left, const float2x2 right) {
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return !(left == right);
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}
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thread bool operator==(const float3x3 left, const float3x3 right) {
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return all(left[0] == right[0]) &&
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all(left[1] == right[1]) &&
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all(left[2] == right[2]);
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}
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thread bool operator!=(const float3x3 left, const float3x3 right) {
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return !(left == right);
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}
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float3x3 float3x3_from_float2x2(float2x2 x0) {
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return float3x3(float3(x0[0].xy, 0.0), float3(x0[1].xy, 0.0), float3(0.0, 0.0, 1.0));
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}
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float2x2 resizeMatrix_f22(Uniforms _uniforms) {
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return float2x2_from_float3x3(_uniforms.testMatrix3x3);
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}
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Outputs _out;
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(void)_out;
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_out.sk_FragColor = resizeMatrix_f22(_uniforms) == float2x2(float2(1.0, 2.0), float2(4.0, 5.0)) && float3x3_from_float2x2(resizeMatrix_f22(_uniforms)) == float3x3(float3(1.0, 2.0, 0.0), float3(4.0, 5.0, 0.0), float3(0.0, 0.0, 1.0)) ? _uniforms.colorGreen : _uniforms.colorRed;
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return _out;
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}
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