SPIRV-Cross/reference/shaders-msl/comp/local-invocation-index.comp
Hans-Kristian Arntzen d1479f871a MSL: Do not generate UnsafeArray<> for any array inside buffer objects.
This avoids a lot of huge code changes.
Arrays generally cannot be copied in and out of buffers, at least no
compiler frontend seems to do it.

Also avoids a lot of issues surrounding packed vectors and matrices.
2019-10-24 12:22:30 +02:00

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#pragma clang diagnostic ignored "-Wmissing-prototypes"
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct myBlock
{
int a;
float b[1];
};
// Implementation of the GLSL mod() function, which is slightly different than Metal fmod()
template<typename Tx, typename Ty>
inline Tx mod(Tx x, Ty y)
{
return x - y * floor(x / y);
}
kernel void main0(device myBlock& myStorage [[buffer(0)]], uint gl_LocalInvocationIndex [[thread_index_in_threadgroup]])
{
myStorage.a = (myStorage.a + 1) % 256;
myStorage.b[gl_LocalInvocationIndex] = mod(myStorage.b[gl_LocalInvocationIndex] + 0.0199999995529651641845703125, 1.0);
}