XcmsColor() XcmsColor()
Name
XcmsColor - Xcms color structure.
Availability
Release 5 and later.
Description
The XcmsColor structure contains a union of substructures, each supporting a color space specific encoding.
The XcmsColorFormat type is used to identify the color space associated with the values in the XcmsColor structure. It is also used as an
argument to some Xcms functions to indicate the desired format of returned color specifications.
Structures
The XcmsColor structure contains:
typedef unsigned long XcmsColorFormat; /* Color Specification Format */
#define XcmsUndefinedFormat (XcmsColorFormat)0x00000000
#define XcmsCIEXYZFormat (XcmsColorFormat)0x00000001
#define XcmsCIEuvYFormat (XcmsColorFormat)0x00000002
#define XcmsCIExyYFormat (XcmsColorFormat)0x00000003
#define XcmsCIELabFormat (XcmsColorFormat)0x00000004
#define XcmsCIELuvFormat (XcmsColorFormat)0x00000005
#define XcmsTekHVCFormat (XcmsColorFormat)0x00000006
#define XcmsRGBFormat (XcmsColorFormat)0x80000000
#define XcmsRGBiFormat (XcmsColorFormat)0x80000001
typedef struct {
union {
XcmsRGB RGB;
XcmsRGBi RGBi;
XcmsCIEXYZ CIEXYZ;
XcmsCIEuvY CIEuvY;
XcmsCIExyY CIExyY;
XcmsCIELab CIELab;
XcmsCIELuv CIELuv;
XcmsTekHVC TekHVC;
XcmsPad Pad;
} spec;
XcmsColorFormat format;
unsigned long pixel;
} 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; /* padded to 4 floats for future or */
/* user-defined color space encodings */
/* that require more space than what */
/* 3 floats can provide */
See Also
XcmsAllocColor(), XcmsAllocNamedColor(), XcmsConvertColors(), XcmsLookupColor(), XcmsQueryColor(), XcmsQueryColors(), XcmsStoreColor(),
XcmsStoreColors(), XcmsStoreNamedColor, XcmsClientWhitePointOfCCC(), XcmsSetWhitePoint(), XcmsScreenWhitePointOfCCC(), XcmsCIELabQuery-
MaxC(), XcmsCIELabQueryMaxL(), XcmsCIELabQueryMaxLC(), XcmsCIELabQueryMinL(), XcmsCIELuvQueryMaxC(), XcmsCIELuvQueryMaxL(), XcmsCIELuv-
QueryMaxLC(), XcmsCIELuvQueryMinL(), XcmsTekHVCQueryMaxC(), XcmsTekHVCQueryMaxL, XcmsTekHVCQueryMaxLC, XcmsTekHVCQueryMinL, XcmsQuery-
Black(), XcmsQueryBlue(), XcmsQueryGreen(), XcmsQueryRed(), XcmsQueryWhite(), XcmsCompressionProc, XcmsWhiteAdjustProc, XcmsConversionProc,
XcmsParseStringProc.
Xlib - Device-independent Color XcmsColor()