XcmsColor, XcmsRGB, XcmsRGBi, XcmsCIEXYZ, XcmsCIEuvY, XcmsCIExyY, XcmsCIELab, XcmsCIELuv, XcmsTekHVC, XcmsPad − Xcms color structure


The structure for XcmsColor contains:

typedef unsigned long XcmsColorFormat;            /* Color Specification Format */

typedef struct {
     union {
          XcmsRGB RGB;
          XcmsRGBi RGBi;
          XcmsCIEXYZ CIEXYZ;
          XcmsCIEuvY CIEuvY;
          XcmsCIExyY CIExyY;
          XcmsCIELab CIELab;
          XcmsCIELuv CIELuv;
          XcmsTekHVC TekHVC;
          XcmsPad Pad;
     } spec;
     unsigned long pixel;
     XcmsColorFormat format;
} XcmsColor;             /* Xcms Color Structure */
typedef double XcmsFloat;

typedef struct {
     unsigned short red; /* 0x0000 to 0xffff */
     unsigned short green;    /* 0x0000 to 0xffff */
     unsigned short blue;     /* 0x0000 to 0xffff */
} XcmsRGB;          /* RGB Device */
typedef struct {
     XcmsFloat red; /* 0.0 to 1.0 */
     XcmsFloat green;    /* 0.0 to 1.0 */
     XcmsFloat blue;     /* 0.0 to 1.0 */
} XcmsRGBi;         /* RGB Intensity */
typedef struct {
     XcmsFloat X;
     XcmsFloat Y;   /* 0.0 to 1.0 */
     XcmsFloat Z;
} XcmsCIEXYZ;       /* CIE XYZ */
typedef struct {
     XcmsFloat u_prime;  /* 0.0 to ~0.6 */
     XcmsFloat v_prime;  /* 0.0 to ~0.6 */
     XcmsFloat Y;   /* 0.0 to 1.0 */
} XcmsCIEuvY;       /* CIE u’v’Y */
typedef struct {
     XcmsFloat x;   /* 0.0 to ~.75 */
     XcmsFloat y;   /* 0.0 to ~.85 */
     XcmsFloat Y;   /* 0.0 to 1.0 */
} XcmsCIExyY;       /* CIE xyY */
typedef struct {
     XcmsFloat L_star;   /* 0.0 to 100.0 */
     XcmsFloat a_star;
     XcmsFloat b_star;
} XcmsCIELab;       /* CIE L*a*b* */
typedef struct {
     XcmsFloat L_star;   /* 0.0 to 100.0 */
     XcmsFloat u_star;
     XcmsFloat v_star;
} XcmsCIELuv;       /* CIE L*u*v* */
typedef struct {
     XcmsFloat H;   /* 0.0 to 360.0 */
     XcmsFloat V;   /* 0.0 to 100.0 */
     XcmsFloat C;   /* 0.0 to 100.0 */
} XcmsTekHVC;       /* TekHVC */

typedef struct {
     XcmsFloat pad0;
     XcmsFloat pad1;
     XcmsFloat pad2;
     XcmsFloat pad3;
} XcmsPad;          /* four doubles */


The XcmsColor structure contains a union of substructures, each supporting color specification encoding for a particular color space.


XcmsAllocColor(3), XcmsStoreColor(3), XcmsConvertColors(3),

Xlib − C Language X Interface


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