SPIRV-Cross/reference/opt/shaders-hlsl/frag/unorm-snorm-packing.frag
2017-11-27 15:03:40 +01:00

110 lines
3.1 KiB
GLSL

static float4 FP32Out;
static uint UNORM8;
static uint SNORM8;
static uint UNORM16;
static uint SNORM16;
static uint UNORM8Out;
static float4 FP32;
static uint SNORM8Out;
static uint UNORM16Out;
static uint SNORM16Out;
struct SPIRV_Cross_Input
{
nointerpolation uint SNORM8 : TEXCOORD0;
nointerpolation uint UNORM8 : TEXCOORD1;
nointerpolation uint SNORM16 : TEXCOORD2;
nointerpolation uint UNORM16 : TEXCOORD3;
nointerpolation float4 FP32 : TEXCOORD4;
};
struct SPIRV_Cross_Output
{
float4 FP32Out : SV_Target0;
uint UNORM8Out : SV_Target1;
uint SNORM8Out : SV_Target2;
uint UNORM16Out : SV_Target3;
uint SNORM16Out : SV_Target4;
};
uint SPIRV_Cross_packUnorm4x8(float4 value)
{
uint4 Packed = uint4(round(saturate(value) * 255.0));
return Packed.x | (Packed.y << 8) | (Packed.z << 16) | (Packed.w << 24);
}
float4 SPIRV_Cross_unpackUnorm4x8(uint value)
{
uint4 Packed = uint4(value & 0xff, (value >> 8) & 0xff, (value >> 16) & 0xff, value >> 24);
return float4(Packed) / 255.0;
}
uint SPIRV_Cross_packSnorm4x8(float4 value)
{
int4 Packed = int4(round(clamp(value, -1.0, 1.0) * 127.0)) & 0xff;
return uint(Packed.x | (Packed.y << 8) | (Packed.z << 16) | (Packed.w << 24));
}
float4 SPIRV_Cross_unpackSnorm4x8(uint value)
{
int SignedValue = int(value);
int4 Packed = int4(SignedValue << 24, SignedValue << 16, SignedValue << 8, SignedValue) >> 24;
return clamp(float4(Packed) / 127.0, -1.0, 1.0);
}
uint SPIRV_Cross_packUnorm2x16(float2 value)
{
uint2 Packed = uint2(round(saturate(value) * 65535.0));
return Packed.x | (Packed.y << 16);
}
float2 SPIRV_Cross_unpackUnorm2x16(uint value)
{
uint2 Packed = uint2(value & 0xffff, value >> 16);
return float2(Packed) / 65535.0;
}
uint SPIRV_Cross_packSnorm2x16(float2 value)
{
int2 Packed = int2(round(clamp(value, -1.0, 1.0) * 32767.0)) & 0xffff;
return uint(Packed.x | (Packed.y << 16));
}
float2 SPIRV_Cross_unpackSnorm2x16(uint value)
{
int SignedValue = int(value);
int2 Packed = int2(SignedValue << 16, SignedValue) >> 16;
return clamp(float2(Packed) / 32767.0, -1.0, 1.0);
}
void frag_main()
{
FP32Out = SPIRV_Cross_unpackUnorm4x8(UNORM8);
FP32Out = SPIRV_Cross_unpackSnorm4x8(SNORM8);
float2 _21 = SPIRV_Cross_unpackUnorm2x16(UNORM16);
FP32Out = float4(_21.x, _21.y, FP32Out.z, FP32Out.w);
float2 _26 = SPIRV_Cross_unpackSnorm2x16(SNORM16);
FP32Out = float4(_26.x, _26.y, FP32Out.z, FP32Out.w);
UNORM8Out = SPIRV_Cross_packUnorm4x8(FP32);
SNORM8Out = SPIRV_Cross_packSnorm4x8(FP32);
UNORM16Out = SPIRV_Cross_packUnorm2x16(FP32.xy);
SNORM16Out = SPIRV_Cross_packSnorm2x16(FP32.zw);
}
SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
{
UNORM8 = stage_input.UNORM8;
SNORM8 = stage_input.SNORM8;
UNORM16 = stage_input.UNORM16;
SNORM16 = stage_input.SNORM16;
FP32 = stage_input.FP32;
frag_main();
SPIRV_Cross_Output stage_output;
stage_output.FP32Out = FP32Out;
stage_output.UNORM8Out = UNORM8Out;
stage_output.SNORM8Out = SNORM8Out;
stage_output.UNORM16Out = UNORM16Out;
stage_output.SNORM16Out = SNORM16Out;
return stage_output;
}