1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Uniforms { 5 float2x2 testMatrix2x2; 6 half4 colorGreen; 7 half4 colorRed; 8}; 9struct Inputs { 10}; 11struct Outputs { 12 half4 sk_FragColor [[color(0)]]; 13}; 14 15float4 float4_from_float2x2(float2x2 x) { 16 return float4(x[0].xy, x[1].xy); 17} 18fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 19 Outputs _out; 20 (void)_out; 21 const float4 negativeVal = float4(-1.0, -4.0, -16.0, -64.0); 22 coords = sqrt(negativeVal).xy; 23 float4 inputVal = float4_from_float2x2(_uniforms.testMatrix2x2) + float4(0.0, 2.0, 6.0, 12.0); 24 const float4 expected = float4(1.0, 2.0, 3.0, 4.0); 25 const float4 allowedDelta = float4(0.05); 26 _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; 27 return _out; 28} 29