SPIRV-Cross/reference/shaders-hlsl/frag/fp16-packing.frag
2017-11-27 14:24:30 +01:00

45 lines
915 B
GLSL

static float2 FP32Out;
static uint FP16;
static uint FP16Out;
static float2 FP32;
struct SPIRV_Cross_Input
{
nointerpolation uint FP16 : TEXCOORD0;
nointerpolation float2 FP32 : TEXCOORD1;
};
struct SPIRV_Cross_Output
{
float2 FP32Out : SV_Target0;
uint FP16Out : SV_Target1;
};
uint SPIRV_Cross_packHalf2x16(float2 value)
{
uint2 Packed = f32tof16(value);
return Packed.x | (Packed.y << 16);
}
float2 SPIRV_Cross_unpackHalf2x16(uint value)
{
return f16tof32(uint2(value & 0xffff, value >> 16));
}
void frag_main()
{
FP32Out = SPIRV_Cross_unpackHalf2x16(FP16);
FP16Out = SPIRV_Cross_packHalf2x16(FP32);
}
SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
{
FP16 = stage_input.FP16;
FP32 = stage_input.FP32;
frag_main();
SPIRV_Cross_Output stage_output;
stage_output.FP32Out = FP32Out;
stage_output.FP16Out = FP16Out;
return stage_output;
}