LYGIA Shader Library

Use:

yuv2rgb(<vec3|vec4> color)

Check it on Github

#ifndef MAT_YUV2RGB
#define MAT_YUV2RGB
#ifdef YUV_SDTV
const mat3 YUV2RGB = mat3(
    1.0,       1.0,      1.0,
    0.0,      -0.39465,  2.03211,
    1.13983,  -0.58060,  0.0
);
#else
const mat3 YUV2RGB = mat3(
    1.0,       1.0,      1.0,
    0.0,      -0.21482,  2.12798,
    1.28033,  -0.38059,  0.0
);
#endif
#endif

#ifndef FNC_YUV2RGB
#define FNC_YUV2RGB
vec3 yuv2rgb(const in vec3 yuv) { return YUV2RGB * yuv; }
vec4 yuv2rgb(const in vec4 yuv) { return vec4(yuv2rgb(yuv.rgb), yuv.a); }
#endif

Use:

yuv2rgb(<float3|float4> color)

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#ifndef MAT_YUV2RGB
#define MAT_YUV2RGB
#ifdef YUV_SDTV
static const float3x3 YUV2RGB = float3x3(
    1.0,       1.0,      1.0,
    0.0,      -0.39465,  2.03211,
    1.13983,  -0.58060,  0.0
);
#else
static const float3x3 YUV2RGB = float3x3(
    1.0,       1.0,      1.0,
    0.0,      -0.21482,  2.12798,
    1.28033,  -0.38059,  0.0
);
#endif
#endif

#ifndef FNC_YUV2RGB
#define FNC_YUV2RGB
float3 yuv2rgb(in float3 yuv) { return mul(YUV2RGB, yuv); }
float4 yuv2rgb(in float4 yuv) { return float4(yuv2rgb(yuv.rgb), yuv.a); }
#endif

Use:

yuv2rgb(<float3|float4> color)

Check it on Github

#ifndef MAT_YUV2RGB
#define MAT_YUV2RGB
#ifdef YUV_SDTV
constant matrix<float, 3, 3> YUV2RGB = matrix<float, 3, 3>(
    1.0,       1.0,      1.0,
    0.0,      -0.39465,  2.03211,
    1.13983,  -0.58060,  0.0
);
#else
constant matrix<float, 3, 3> YUV2RGB = matrix<float, 3, 3>(
    1.0,       1.0,      1.0,
    0.0,      -0.21482,  2.12798,
    1.28033,  -0.38059,  0.0
);
#endif
#endif

#ifndef FNC_YUV2RGB
#define FNC_YUV2RGB
float3 yuv2rgb( float3 yuv) { return YUV2RGB * yuv; }
float4 yuv2rgb( float4 yuv) { return float4(yuv2rgb(yuv.rgb), yuv.a); }
#endif

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// #ifdef YUV_SDTV
// const YUV2RGB = mat3x3<f32>(
//     vec3f(1.0,       1.0,      1.0),
//     vec3f(0.0,      -0.39465,  2.03211),
//     vec3f(1.13983,  -0.58060,  0.0)
// );
// #else
const YUV2RGB = mat3x3<f32>(
    vec3f(1.0,       1.0,      1.0),
    vec3f(0.0,      -0.21482,  2.12798),
    vec3f(1.28033,  -0.38059,  0.0)
);
// #endif
fn yuv2rgb(yuv: vec3f) -> vec3f { return YUV2RGB * yuv; }