7ab3f3f74e
There is no good reason for applications to emit this kind of code, but some do. Special case this scenario.
191 lines
9.8 KiB
GLSL
191 lines
9.8 KiB
GLSL
#pragma clang diagnostic ignored "-Wmissing-prototypes"
|
|
|
|
#include <metal_stdlib>
|
|
#include <simd/simd.h>
|
|
|
|
using namespace metal;
|
|
|
|
// Returns 2D texture coords corresponding to 1D texel buffer coords
|
|
static inline __attribute__((always_inline))
|
|
uint2 spvTexelBufferCoord(uint tc)
|
|
{
|
|
return uint2(tc % 4096, tc / 4096);
|
|
}
|
|
|
|
template<typename T> struct spvRemoveReference { typedef T type; };
|
|
template<typename T> struct spvRemoveReference<thread T&> { typedef T type; };
|
|
template<typename T> struct spvRemoveReference<thread T&&> { typedef T type; };
|
|
template<typename T> inline constexpr thread T&& spvForward(thread typename spvRemoveReference<T>::type& x)
|
|
{
|
|
return static_cast<thread T&&>(x);
|
|
}
|
|
template<typename T> inline constexpr thread T&& spvForward(thread typename spvRemoveReference<T>::type&& x)
|
|
{
|
|
return static_cast<thread T&&>(x);
|
|
}
|
|
|
|
enum class spvSwizzle : uint
|
|
{
|
|
none = 0,
|
|
zero,
|
|
one,
|
|
red,
|
|
green,
|
|
blue,
|
|
alpha
|
|
};
|
|
|
|
template<typename T>
|
|
inline T spvGetSwizzle(vec<T, 4> x, T c, spvSwizzle s)
|
|
{
|
|
switch (s)
|
|
{
|
|
case spvSwizzle::none:
|
|
return c;
|
|
case spvSwizzle::zero:
|
|
return 0;
|
|
case spvSwizzle::one:
|
|
return 1;
|
|
case spvSwizzle::red:
|
|
return x.r;
|
|
case spvSwizzle::green:
|
|
return x.g;
|
|
case spvSwizzle::blue:
|
|
return x.b;
|
|
case spvSwizzle::alpha:
|
|
return x.a;
|
|
}
|
|
}
|
|
|
|
// Wrapper function that swizzles texture samples and fetches.
|
|
template<typename T>
|
|
inline vec<T, 4> spvTextureSwizzle(vec<T, 4> x, uint s)
|
|
{
|
|
if (!s)
|
|
return x;
|
|
return vec<T, 4>(spvGetSwizzle(x, x.r, spvSwizzle((s >> 0) & 0xFF)), spvGetSwizzle(x, x.g, spvSwizzle((s >> 8) & 0xFF)), spvGetSwizzle(x, x.b, spvSwizzle((s >> 16) & 0xFF)), spvGetSwizzle(x, x.a, spvSwizzle((s >> 24) & 0xFF)));
|
|
}
|
|
|
|
template<typename T>
|
|
inline T spvTextureSwizzle(T x, uint s)
|
|
{
|
|
return spvTextureSwizzle(vec<T, 4>(x, 0, 0, 1), s).x;
|
|
}
|
|
|
|
// Wrapper function that swizzles texture gathers.
|
|
template<typename T, template<typename, access = access::sample, typename = void> class Tex, typename... Ts>
|
|
inline vec<T, 4> spvGatherSwizzle(const thread Tex<T>& t, sampler s, uint sw, component c, Ts... params) METAL_CONST_ARG(c)
|
|
{
|
|
if (sw)
|
|
{
|
|
switch (spvSwizzle((sw >> (uint(c) * 8)) & 0xFF))
|
|
{
|
|
case spvSwizzle::none:
|
|
break;
|
|
case spvSwizzle::zero:
|
|
return vec<T, 4>(0, 0, 0, 0);
|
|
case spvSwizzle::one:
|
|
return vec<T, 4>(1, 1, 1, 1);
|
|
case spvSwizzle::red:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::x);
|
|
case spvSwizzle::green:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::y);
|
|
case spvSwizzle::blue:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::z);
|
|
case spvSwizzle::alpha:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::w);
|
|
}
|
|
}
|
|
switch (c)
|
|
{
|
|
case component::x:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::x);
|
|
case component::y:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::y);
|
|
case component::z:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::z);
|
|
case component::w:
|
|
return t.gather(s, spvForward<Ts>(params)..., component::w);
|
|
}
|
|
}
|
|
|
|
// Wrapper function that swizzles depth texture gathers.
|
|
template<typename T, template<typename, access = access::sample, typename = void> class Tex, typename... Ts>
|
|
inline vec<T, 4> spvGatherCompareSwizzle(const thread Tex<T>& t, sampler s, uint sw, Ts... params)
|
|
{
|
|
if (sw)
|
|
{
|
|
switch (spvSwizzle(sw & 0xFF))
|
|
{
|
|
case spvSwizzle::none:
|
|
case spvSwizzle::red:
|
|
break;
|
|
case spvSwizzle::zero:
|
|
case spvSwizzle::green:
|
|
case spvSwizzle::blue:
|
|
case spvSwizzle::alpha:
|
|
return vec<T, 4>(0, 0, 0, 0);
|
|
case spvSwizzle::one:
|
|
return vec<T, 4>(1, 1, 1, 1);
|
|
}
|
|
}
|
|
return t.gather_compare(s, spvForward<Ts>(params)...);
|
|
}
|
|
|
|
fragment void main0(constant uint* spvSwizzleConstants [[buffer(30)]], texture1d<float> tex1d [[texture(0)]], texture2d<float> tex2d [[texture(1)]], texture3d<float> tex3d [[texture(2)]], texturecube<float> texCube [[texture(3)]], texture2d_array<float> tex2dArray [[texture(4)]], texturecube_array<float> texCubeArray [[texture(5)]], depth2d<float> depth2d [[texture(6)]], depthcube<float> depthCube [[texture(7)]], depth2d_array<float> depth2dArray [[texture(8)]], depthcube_array<float> depthCubeArray [[texture(9)]], texture2d<float> texBuffer [[texture(10)]], sampler tex1dSmplr [[sampler(0)]], sampler tex2dSmplr [[sampler(1)]], sampler tex3dSmplr [[sampler(2)]], sampler texCubeSmplr [[sampler(3)]], sampler tex2dArraySmplr [[sampler(4)]], sampler texCubeArraySmplr [[sampler(5)]], sampler depth2dSmplr [[sampler(6)]], sampler depthCubeSmplr [[sampler(7)]], sampler depth2dArraySmplr [[sampler(8)]], sampler depthCubeArraySmplr [[sampler(9)]])
|
|
{
|
|
constant uint& tex1dSwzl = spvSwizzleConstants[0];
|
|
constant uint& tex2dSwzl = spvSwizzleConstants[1];
|
|
constant uint& tex3dSwzl = spvSwizzleConstants[2];
|
|
constant uint& texCubeSwzl = spvSwizzleConstants[3];
|
|
constant uint& tex2dArraySwzl = spvSwizzleConstants[4];
|
|
constant uint& texCubeArraySwzl = spvSwizzleConstants[5];
|
|
constant uint& depth2dSwzl = spvSwizzleConstants[6];
|
|
constant uint& depthCubeSwzl = spvSwizzleConstants[7];
|
|
constant uint& depth2dArraySwzl = spvSwizzleConstants[8];
|
|
constant uint& depthCubeArraySwzl = spvSwizzleConstants[9];
|
|
float4 c = spvTextureSwizzle(tex1d.sample(tex1dSmplr, 0.0), tex1dSwzl);
|
|
c = spvTextureSwizzle(tex2d.sample(tex2dSmplr, float2(0.0)), tex2dSwzl);
|
|
c = spvTextureSwizzle(tex3d.sample(tex3dSmplr, float3(0.0)), tex3dSwzl);
|
|
c = spvTextureSwizzle(texCube.sample(texCubeSmplr, float3(0.0)), texCubeSwzl);
|
|
c = spvTextureSwizzle(tex2dArray.sample(tex2dArraySmplr, float3(0.0).xy, uint(round(float3(0.0).z))), tex2dArraySwzl);
|
|
c = spvTextureSwizzle(texCubeArray.sample(texCubeArraySmplr, float4(0.0).xyz, uint(round(float4(0.0).w))), texCubeArraySwzl);
|
|
c.x = spvTextureSwizzle(depth2d.sample_compare(depth2dSmplr, float3(0.0, 0.0, 1.0).xy, 1.0), depth2dSwzl);
|
|
c.x = spvTextureSwizzle(depthCube.sample_compare(depthCubeSmplr, float4(0.0, 0.0, 0.0, 1.0).xyz, 1.0), depthCubeSwzl);
|
|
c.x = spvTextureSwizzle(depth2dArray.sample_compare(depth2dArraySmplr, float4(0.0, 0.0, 0.0, 1.0).xy, uint(round(float4(0.0, 0.0, 0.0, 1.0).z)), 1.0), depth2dArraySwzl);
|
|
c.x = spvTextureSwizzle(depthCubeArray.sample_compare(depthCubeArraySmplr, float4(0.0).xyz, uint(round(float4(0.0).w)), 1.0), depthCubeArraySwzl);
|
|
c = spvTextureSwizzle(tex1d.sample(tex1dSmplr, float2(0.0, 1.0).x / float2(0.0, 1.0).y), tex1dSwzl);
|
|
c = spvTextureSwizzle(tex2d.sample(tex2dSmplr, float3(0.0, 0.0, 1.0).xy / float3(0.0, 0.0, 1.0).z), tex2dSwzl);
|
|
c = spvTextureSwizzle(tex3d.sample(tex3dSmplr, float4(0.0, 0.0, 0.0, 1.0).xyz / float4(0.0, 0.0, 0.0, 1.0).w), tex3dSwzl);
|
|
float4 _100 = float4(0.0, 0.0, 1.0, 1.0);
|
|
_100.z = 1.0;
|
|
c.x = spvTextureSwizzle(depth2d.sample_compare(depth2dSmplr, _100.xy / _100.z, 1.0 / _100.z), depth2dSwzl);
|
|
c = spvTextureSwizzle(tex1d.sample(tex1dSmplr, 0.0), tex1dSwzl);
|
|
c = spvTextureSwizzle(tex2d.sample(tex2dSmplr, float2(0.0), level(0.0)), tex2dSwzl);
|
|
c = spvTextureSwizzle(tex3d.sample(tex3dSmplr, float3(0.0), level(0.0)), tex3dSwzl);
|
|
c = spvTextureSwizzle(texCube.sample(texCubeSmplr, float3(0.0), level(0.0)), texCubeSwzl);
|
|
c = spvTextureSwizzle(tex2dArray.sample(tex2dArraySmplr, float3(0.0).xy, uint(round(float3(0.0).z)), level(0.0)), tex2dArraySwzl);
|
|
c = spvTextureSwizzle(texCubeArray.sample(texCubeArraySmplr, float4(0.0).xyz, uint(round(float4(0.0).w)), level(0.0)), texCubeArraySwzl);
|
|
c.x = spvTextureSwizzle(depth2d.sample_compare(depth2dSmplr, float3(0.0, 0.0, 1.0).xy, 1.0, level(0.0)), depth2dSwzl);
|
|
c = spvTextureSwizzle(tex1d.sample(tex1dSmplr, float2(0.0, 1.0).x / float2(0.0, 1.0).y), tex1dSwzl);
|
|
c = spvTextureSwizzle(tex2d.sample(tex2dSmplr, float3(0.0, 0.0, 1.0).xy / float3(0.0, 0.0, 1.0).z, level(0.0)), tex2dSwzl);
|
|
c = spvTextureSwizzle(tex3d.sample(tex3dSmplr, float4(0.0, 0.0, 0.0, 1.0).xyz / float4(0.0, 0.0, 0.0, 1.0).w, level(0.0)), tex3dSwzl);
|
|
float4 _128 = float4(0.0, 0.0, 1.0, 1.0);
|
|
_128.z = 1.0;
|
|
c.x = spvTextureSwizzle(depth2d.sample_compare(depth2dSmplr, _128.xy / _128.z, 1.0 / _128.z, level(0.0)), depth2dSwzl);
|
|
c = spvTextureSwizzle(tex1d.read(uint(0)), tex1dSwzl);
|
|
c = spvTextureSwizzle(tex2d.read(uint2(int2(0)), 0), tex2dSwzl);
|
|
c = spvTextureSwizzle(tex3d.read(uint3(int3(0)), 0), tex3dSwzl);
|
|
c = spvTextureSwizzle(tex2dArray.read(uint2(int3(0).xy), uint(int3(0).z), 0), tex2dArraySwzl);
|
|
c = texBuffer.read(spvTexelBufferCoord(0));
|
|
c = spvGatherSwizzle(tex2d, tex2dSmplr, tex2dSwzl, component::x, float2(0.0), int2(0));
|
|
c = spvGatherSwizzle(texCube, texCubeSmplr, texCubeSwzl, component::y, float3(0.0));
|
|
c = spvGatherSwizzle(tex2dArray, tex2dArraySmplr, tex2dArraySwzl, component::z, float3(0.0).xy, uint(round(float3(0.0).z)), int2(0));
|
|
c = spvGatherSwizzle(texCubeArray, texCubeArraySmplr, texCubeArraySwzl, component::w, float4(0.0).xyz, uint(round(float4(0.0).w)));
|
|
c = spvGatherCompareSwizzle(depth2d, depth2dSmplr, depth2dSwzl, float2(0.0), 1.0);
|
|
c = spvGatherCompareSwizzle(depthCube, depthCubeSmplr, depthCubeSwzl, float3(0.0), 1.0);
|
|
c = spvGatherCompareSwizzle(depth2dArray, depth2dArraySmplr, depth2dArraySwzl, float3(0.0).xy, uint(round(float3(0.0).z)), 1.0);
|
|
c = spvGatherCompareSwizzle(depthCubeArray, depthCubeArraySmplr, depthCubeArraySwzl, float4(0.0).xyz, uint(round(float4(0.0).w)), 1.0);
|
|
}
|
|
|