32 lines
794 B
Plaintext
32 lines
794 B
Plaintext
#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 myBlock
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{
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int a;
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float b[1];
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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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inline 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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inline float getB(device myBlock& myStorage, thread uint3& gl_GlobalInvocationID)
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{
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return myStorage.b[gl_GlobalInvocationID.x];
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}
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kernel void main0(device myBlock& myStorage [[buffer(0)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
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{
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myStorage.a = (myStorage.a + 1) % 256;
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myStorage.b[gl_GlobalInvocationID.x] = mod(getB(myStorage, gl_GlobalInvocationID) + 0.0199999995529651641845703125, 1.0);
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}
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