mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-30 23:33:02 +00:00
81 lines
2 KiB
Text
81 lines
2 KiB
Text
uniform float4x4 ViewProj;
|
|
uniform texture2d image;
|
|
|
|
sampler_state primarySampler {
|
|
Filter = Linear;
|
|
AddressU = Clamp;
|
|
AddressV = Clamp;
|
|
};
|
|
|
|
struct VertDataIn {
|
|
float4 pos : POSITION;
|
|
float2 uv : TEXCOORD0;
|
|
};
|
|
|
|
struct VertDataOut {
|
|
float4 pos : POSITION;
|
|
float2 uv : TEXCOORD0;
|
|
};
|
|
|
|
VertDataOut VSDefault(VertDataIn v_in) {
|
|
VertDataOut vert_out;
|
|
vert_out.pos = mul(float4(v_in.pos.xyz, 1.0), ViewProj);
|
|
vert_out.uv = v_in.uv;
|
|
return vert_out;
|
|
}
|
|
|
|
// ************************************************************************** //
|
|
// RGB <-> YUV
|
|
// ************************************************************************** //
|
|
float4 RGBtoYUV(float4 rgba, float3x3 yuv) {
|
|
return float4(
|
|
rgba.r * yuv._m00 + rgba.g * yuv._m01 + rgba.b * yuv._m02,
|
|
rgba.r * yuv._m10 + rgba.g * yuv._m11 + rgba.b * yuv._m12,
|
|
rgba.r * yuv._m20 + rgba.g * yuv._m21 + rgba.b * yuv._m22,
|
|
rgba.a
|
|
) + float4(0,0.5,0.5,0);
|
|
}
|
|
float4 YUVtoRGB(float4 yuva, float3x3 yuvi) {
|
|
yuva.gb -= 0.5;
|
|
return float4(
|
|
yuva.r * yuvi._m00 + yuva.g * yuvi._m01 + yuva.b * yuvi._m02,
|
|
yuva.r * yuvi._m10 + yuva.g * yuvi._m11 + yuva.b * yuvi._m12,
|
|
yuva.r * yuvi._m20 + yuva.g * yuvi._m21 + yuva.b * yuvi._m22,
|
|
yuva.a);
|
|
}
|
|
|
|
float4 RGBToYUV_Pass(VertDataOut v_in) : TARGET {
|
|
const float3x3 mYUV709 = {
|
|
0.2126, 0.7152, 0.0722,
|
|
-0.2126, -0.7152, 0.9278,
|
|
0.7874, -0.7152, -0.0722
|
|
};
|
|
const float3x3 mYUV709n = { // Normalized
|
|
0.2126, 0.7152, 0.0722,
|
|
-0.1145721060573399, -0.3854278939426601, 0.5,
|
|
0.5, -0.4541529083058166, -0.0458470916941834
|
|
};
|
|
return RGBtoYUV(image.Sample(primarySampler, v_in.uv), mYUV709n);
|
|
}
|
|
|
|
float4 YUVToRGB_Pass(VertDataOut v_in) : TARGET {
|
|
const float3x3 mYUV709i = { // Inverse Normalized
|
|
1, 0, 1.5748,
|
|
1, -0.187324, -0.468124,
|
|
1, 1.8556, 0
|
|
};
|
|
return YUVtoRGB(image.Sample(primarySampler, v_in.uv), mYUV709i);
|
|
}
|
|
|
|
technique RGBToYUV {
|
|
pass {
|
|
vertex_shader = VSDefault(v_in);
|
|
pixel_shader = RGBToYUV_Pass(v_in);
|
|
}
|
|
}
|
|
technique YUVToRGB {
|
|
pass {
|
|
vertex_shader = VSDefault(v_in);
|
|
pixel_shader = YUVToRGB_Pass(v_in);
|
|
}
|
|
}
|