reference/shaders-msl/comp/mod.comp

#pragma clang diagnostic ignored "-Wmissing-prototypes"

#include <metal_stdlib>
#include <simd/simd.h>

using namespace metal;

struct SSBO
{
    float4 in_data[1];
};

struct SSBO2
{
    float4 out_data[1];
};

// Implementation of the GLSL mod() function, which is slightly different than Metal fmod()
template<typename Tx, typename Ty>
Tx mod(Tx x, Ty y)
{
    return x - y * floor(x / y);
}

kernel void main0(const device SSBO& _23 [[buffer(0)]], device SSBO2& _33 [[buffer(1)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
{
    uint ident = gl_GlobalInvocationID.x;
    float4 v = mod(_23.in_data[ident], _33.out_data[ident]);
    _33.out_data[ident] = v;
    uint4 vu = as_type<uint4>(_23.in_data[ident]) % as_type<uint4>(_33.out_data[ident]);
    _33.out_data[ident] = as_type<float4>(vu);
    int4 vi = as_type<int4>(_23.in_data[ident]) % as_type<int4>(_33.out_data[ident]);
    _33.out_data[ident] = as_type<float4>(vi);
}