SPIRV-Cross/reference/shaders-msl/comp/storage-buffer-std140-vector-array.comp

#pragma clang diagnostic ignored "-Wmissing-prototypes"
#pragma clang diagnostic ignored "-Wmissing-braces"

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

using namespace metal;

template<typename T, size_t Num>
struct spvUnsafeArray
{
    T elements[Num ? Num : 1];
    
    thread T& operator [] (size_t pos) thread
    {
        return elements[pos];
    }
    constexpr const thread T& operator [] (size_t pos) const thread
    {
        return elements[pos];
    }
    
    device T& operator [] (size_t pos) device
    {
        return elements[pos];
    }
    constexpr const device T& operator [] (size_t pos) const device
    {
        return elements[pos];
    }
    
    constexpr const constant T& operator [] (size_t pos) const constant
    {
        return elements[pos];
    }
    
    threadgroup T& operator [] (size_t pos) threadgroup
    {
        return elements[pos];
    }
    constexpr const threadgroup T& operator [] (size_t pos) const threadgroup
    {
        return elements[pos];
    }
};

struct Sub
{
    spvUnsafeArray<float, 2> f;
    spvUnsafeArray<float2, 2> f2;
    spvUnsafeArray<float3, 2> f3;
    spvUnsafeArray<float4, 2> f4;
};

struct Sub_1
{
    spvUnsafeArray<float4, 2> f;
    spvUnsafeArray<float4, 2> f2;
    spvUnsafeArray<float3, 2> f3;
    spvUnsafeArray<float4, 2> f4;
};

struct SSBO
{
    spvUnsafeArray<Sub_1, 2> sub;
};

constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(1u);

kernel void main0(device SSBO& _27 [[buffer(0)]], uint3 gl_WorkGroupID [[threadgroup_position_in_grid]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]])
{
    Sub foo;
    foo.f[0] = _27.sub[gl_WorkGroupID.x].f[0].x;
    foo.f[1] = _27.sub[gl_WorkGroupID.x].f[1].x;
    foo.f2[0] = _27.sub[gl_WorkGroupID.x].f2[0].xy;
    foo.f2[1] = _27.sub[gl_WorkGroupID.x].f2[1].xy;
    foo.f3[0] = _27.sub[gl_WorkGroupID.x].f3[0];
    foo.f3[1] = _27.sub[gl_WorkGroupID.x].f3[1];
    foo.f4[0] = _27.sub[gl_WorkGroupID.x].f4[0];
    foo.f4[1] = _27.sub[gl_WorkGroupID.x].f4[1];
    foo.f[gl_GlobalInvocationID.x] += 1.0;
    foo.f2[gl_GlobalInvocationID.x] += float2(2.0);
    foo.f3[gl_GlobalInvocationID.x] += float3(3.0);
    foo.f4[gl_GlobalInvocationID.x] += float4(4.0);
    _27.sub[gl_WorkGroupID.x].f[0].x = foo.f[0];
    _27.sub[gl_WorkGroupID.x].f[1].x = foo.f[1];
    _27.sub[gl_WorkGroupID.x].f2[0].xy = foo.f2[0];
    _27.sub[gl_WorkGroupID.x].f2[1].xy = foo.f2[1];
    _27.sub[gl_WorkGroupID.x].f3[0] = foo.f3[0];
    _27.sub[gl_WorkGroupID.x].f3[1] = foo.f3[1];
    _27.sub[gl_WorkGroupID.x].f4[0] = foo.f4[0];
    _27.sub[gl_WorkGroupID.x].f4[1] = foo.f4[1];
    _27.sub[0].f[0].x += 5.0;
    _27.sub[0].f2[1].xy += float2(5.0);
}