57 lines
1.3 KiB
GLSL
57 lines
1.3 KiB
GLSL
#pragma clang diagnostic ignored "-Wmissing-prototypes"
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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 myType
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{
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float data;
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};
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constant myType _21[5] = { myType{ 0.0 }, myType{ 1.0 }, myType{ 0.0 }, myType{ 1.0 }, myType{ 0.0 } };
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struct main0_out
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{
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float4 o_color [[color(0)]];
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};
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// Implementation of the GLSL mod() function, which is slightly different than Metal fmod()
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template<typename Tx, typename Ty>
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Tx mod(Tx x, Ty y)
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{
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return x - y * floor(x / y);
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}
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// Implementation of an array copy function to cover GLSL's ability to copy an array via assignment.
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template<typename T, uint N>
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void spvArrayCopyFromStack1(thread T (&dst)[N], thread const T (&src)[N])
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{
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for (uint i = 0; i < N; dst[i] = src[i], i++);
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}
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template<typename T, uint N>
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void spvArrayCopyFromConstant1(thread T (&dst)[N], constant T (&src)[N])
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{
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for (uint i = 0; i < N; dst[i] = src[i], i++);
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}
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fragment main0_out main0(float4 gl_FragCoord [[position]])
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{
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main0_out out = {};
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float2 uv = gl_FragCoord.xy;
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int index = int(mod(uv.x, 4.0));
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myType elt = _21[index];
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if (elt.data > 0.0)
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{
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out.o_color = float4(0.0, 1.0, 0.0, 1.0);
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}
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else
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{
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out.o_color = float4(1.0, 0.0, 0.0, 1.0);
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}
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return out;
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}
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