SPIRV-Cross/reference/shaders-msl/desktop-only/tesc/arrayed-output.desktop.sso.tesc
2019-09-24 14:35:25 -04:00

86 lines
2.6 KiB
GLSL

#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 main0_out
{
float3 vVertex;
};
struct main0_patchOut
{
spvUnsafeArray<float3, 2> vPatch;
};
struct main0_in
{
float3 vInput [[attribute(0)]];
};
kernel void main0(main0_in in [[stage_in]], uint gl_InvocationID [[thread_index_in_threadgroup]], uint gl_PrimitiveID [[threadgroup_position_in_grid]], device main0_out* spvOut [[buffer(28)]], constant uint* spvIndirectParams [[buffer(29)]], device main0_patchOut* spvPatchOut [[buffer(27)]], device MTLQuadTessellationFactorsHalf* spvTessLevel [[buffer(26)]], threadgroup main0_in* gl_in [[threadgroup(0)]])
{
device main0_out* gl_out = &spvOut[gl_PrimitiveID * 4];
device main0_patchOut& patchOut = spvPatchOut[gl_PrimitiveID];
if (gl_InvocationID < spvIndirectParams[0])
gl_in[gl_InvocationID] = in;
threadgroup_barrier(mem_flags::mem_threadgroup);
if (gl_InvocationID >= 4)
return;
gl_out[gl_InvocationID].vVertex = gl_in[gl_InvocationID].vInput + gl_in[gl_InvocationID ^ 1].vInput;
threadgroup_barrier(mem_flags::mem_device | mem_flags::mem_threadgroup);
if (gl_InvocationID == 0)
{
patchOut.vPatch[0] = float3(10.0);
patchOut.vPatch[1] = float3(20.0);
spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[0] = half(1.0);
spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[1] = half(2.0);
spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[2] = half(3.0);
spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[3] = half(4.0);
spvTessLevel[gl_PrimitiveID].insideTessellationFactor[0] = half(1.0);
spvTessLevel[gl_PrimitiveID].insideTessellationFactor[1] = half(2.0);
}
}