SPIRV-Cross/reference/shaders-msl/tese/triangle-tess-level.tese
2019-09-24 14:35:25 -04:00

70 lines
1.8 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
{
float4 gl_Position [[position]];
};
struct main0_patchIn
{
float4 gl_TessLevel [[attribute(0)]];
};
[[ patch(triangle, 0) ]] vertex main0_out main0(main0_patchIn patchIn [[stage_in]], float3 gl_TessCoord [[position_in_patch]])
{
main0_out out = {};
spvUnsafeArray<float, 2> gl_TessLevelInner = {};
spvUnsafeArray<float, 4> gl_TessLevelOuter = {};
gl_TessLevelInner[0] = patchIn.gl_TessLevel.w;
gl_TessLevelOuter[0] = patchIn.gl_TessLevel.x;
gl_TessLevelOuter[1] = patchIn.gl_TessLevel.y;
gl_TessLevelOuter[2] = patchIn.gl_TessLevel.z;
out.gl_Position = float4((gl_TessCoord.x * gl_TessLevelInner[0]) * gl_TessLevelOuter[0], (gl_TessCoord.y * gl_TessLevelInner[0]) * gl_TessLevelOuter[1], (gl_TessCoord.z * gl_TessLevelInner[0]) * gl_TessLevelOuter[2], 1.0);
return out;
}