SPIRV-Cross/reference/shaders-msl/comp/composite-construct.comp
Hans-Kristian Arntzen fa011f8547 MSL: Declare arrays with proper type wrapper.
Need to construct with value type spvUnsafeArray<T, N>({ elem0, elem1 })
to make array initialization work in complex scenarios.
2019-10-26 17:57:34 +02:00

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#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 SSBO0
{
float4 as[1];
};
struct SSBO1
{
float4 bs[1];
};
struct Composite
{
float4 a;
float4 b;
};
constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(1u);
constant spvUnsafeArray<float4, 2> _43 = spvUnsafeArray<float4, 2>({ float4(20.0), float4(40.0) });
kernel void main0(device SSBO0& _16 [[buffer(0)]], device SSBO1& _32 [[buffer(1)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]], uint gl_LocalInvocationIndex [[thread_index_in_threadgroup]])
{
spvUnsafeArray<float4, 2> _37 = spvUnsafeArray<float4, 2>({ _16.as[gl_GlobalInvocationID.x], _32.bs[gl_GlobalInvocationID.x] });
spvUnsafeArray<float4, 2> values;
values = _37;
Composite c = Composite{ values[0], _43[1] };
_16.as[0] = values[gl_LocalInvocationIndex];
_32.bs[1] = c.b;
}