29 lines
1.1 KiB
Metal
29 lines
1.1 KiB
Metal
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#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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float2x2 testMatrix2x2;
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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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float4 float4_from_float2x2(float2x2 x) {
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return float4(x[0].xy, x[1].xy);
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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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const float4 negativeVal = float4(-1.0, -4.0, -16.0, -64.0);
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coords = sqrt(negativeVal).xy;
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float4 inputVal = float4_from_float2x2(_uniforms.testMatrix2x2) + float4(0.0, 2.0, 6.0, 12.0);
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const float4 expected = float4(1.0, 2.0, 3.0, 4.0);
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const float4 allowedDelta = float4(0.05);
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_out.sk_FragColor = ((abs(sqrt(inputVal.x) - 1.0) < 0.05 && all((abs(sqrt(inputVal.xy) - float2(1.0, 2.0)) < float2(0.05)))) && all((abs(sqrt(inputVal.xyz) - float3(1.0, 2.0, 3.0)) < float3(0.05)))) && all((abs(sqrt(inputVal) - expected) < allowedDelta)) ? _uniforms.colorGreen : _uniforms.colorRed;
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return _out;
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}
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