63 RGBtoXYZ (const Chromaticities chroma, float Y)  in RGBtoXYZ()  argument
77     float X = chroma.white.x * Y / chroma.white.y;  in RGBtoXYZ()
78     float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y;  in RGBtoXYZ()
84     float d = chroma.red.x   * (chroma.blue.y  - chroma.green.y) +  in RGBtoXYZ()
85           chroma.blue.x  * (chroma.green.y - chroma.red.y) +  in RGBtoXYZ()
86           chroma.green.x * (chroma.red.y   - chroma.blue.y);  in RGBtoXYZ()
88     float Sr = (X * (chroma.blue.y - chroma.green.y) -  in RGBtoXYZ()
89             chroma.green.x * (Y * (chroma.blue.y - 1) +  in RGBtoXYZ()
90         chroma.blue.y  * (X + Z)) +  in RGBtoXYZ()
91         chroma.blue.x  * (Y * (chroma.green.y - 1) +  in RGBtoXYZ()
92         chroma.green.y * (X + Z))) / d;  in RGBtoXYZ()
94     float Sg = (X * (chroma.red.y - chroma.blue.y) +  in RGBtoXYZ()
95         chroma.red.x   * (Y * (chroma.blue.y - 1) +  in RGBtoXYZ()
96         chroma.blue.y  * (X + Z)) -  in RGBtoXYZ()
97         chroma.blue.x  * (Y * (chroma.red.y - 1) +  in RGBtoXYZ()
98         chroma.red.y   * (X + Z))) / d;  in RGBtoXYZ()
100     float Sb = (X * (chroma.green.y - chroma.red.y) -  in RGBtoXYZ()
101         chroma.red.x   * (Y * (chroma.green.y - 1) +  in RGBtoXYZ()
102         chroma.green.y * (X + Z)) +  in RGBtoXYZ()
103         chroma.green.x * (Y * (chroma.red.y - 1) +  in RGBtoXYZ()
104         chroma.red.y   * (X + Z))) / d;  in RGBtoXYZ()
112     M[0][0] = Sr * chroma.red.x;  in RGBtoXYZ()
113     M[0][1] = Sr * chroma.red.y;  in RGBtoXYZ()
114     M[0][2] = Sr * (1 - chroma.red.x - chroma.red.y);  in RGBtoXYZ()
116     M[1][0] = Sg * chroma.green.x;  in RGBtoXYZ()
117     M[1][1] = Sg * chroma.green.y;  in RGBtoXYZ()
118     M[1][2] = Sg * (1 - chroma.green.x - chroma.green.y);  in RGBtoXYZ()
120     M[2][0] = Sb * chroma.blue.x;  in RGBtoXYZ()
121     M[2][1] = Sb * chroma.blue.y;  in RGBtoXYZ()
122     M[2][2] = Sb * (1 - chroma.blue.x - chroma.blue.y);  in RGBtoXYZ()
129 XYZtoRGB (const Chromaticities chroma, float Y)  in XYZtoRGB()  argument
131     return RGBtoXYZ (chroma, Y).inverse();  in XYZtoRGB()