icm.h

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/*++

Copyright (c) 1996 Microsoft Corporation

Module Name:

    icm.h

Abstract:

    Public header file for Image Color Management

Revision History:

--*/

#ifndef _ICM_H_
#define _ICM_H_

#ifdef __cplusplus
extern "C" {
#endif

//
// Support for named color profiles
//

typedef char COLOR_NAME[32];
typedef COLOR_NAME *PCOLOR_NAME, *LPCOLOR_NAME;

typedef struct tagNAMED_PROFILE_INFO{
	DWORD		dwFlags;
	DWORD		dwCount;
	DWORD		dwCountDevCoordinates;
	COLOR_NAME	szPrefix;
	COLOR_NAME	szSuffix;
}NAMED_PROFILE_INFO;
typedef NAMED_PROFILE_INFO *PNAMED_PROFILE_INFO, *LPNAMED_PROFILE_INFO;


//
// Color spaces
//
// The following color spaces are supported.
// Gray, RGB, CMYK, XYZ, Yxy, Lab, generic 3 channel color spaces where
// the profiles defines how to interpret the 3 channels, named color spaces
// which can either be indices into the space or have color names, and
// multichannel spaces with 1 byte per channel upto MAX_COLOR_CHANNELS.
//

#define MAX_COLOR_CHANNELS  8   // maximum number of HiFi color channels

struct GRAYCOLOR {
    WORD    gray;
};

struct RGBCOLOR {
    WORD    red;
    WORD    green;
    WORD    blue;
};

struct CMYKCOLOR {
    WORD    cyan;
    WORD    magenta;
    WORD    yellow;
    WORD    black;
};

struct XYZCOLOR {
    WORD    X;
    WORD    Y;
    WORD    Z;
};

struct YxyCOLOR {
    WORD    Y;
    WORD    x;
    WORD    y;
};

struct LabCOLOR {
    WORD    L;
    WORD    a;
    WORD    b;
};

struct GENERIC3CHANNEL {
    WORD    ch1;
    WORD    ch2;
    WORD    ch3;
};

struct NAMEDCOLOR {
    DWORD        dwIndex;
};

struct HiFiCOLOR {
    BYTE    channel[MAX_COLOR_CHANNELS];
};


typedef union tagCOLOR {
    struct GRAYCOLOR        gray;
    struct RGBCOLOR         rgb;
    struct CMYKCOLOR        cmyk;
    struct XYZCOLOR         XYZ;
    struct YxyCOLOR         Yxy;
    struct LabCOLOR         Lab;
    struct GENERIC3CHANNEL  gen3ch;
    struct NAMEDCOLOR       named;
    struct HiFiCOLOR        hifi;
} COLOR;
typedef COLOR *PCOLOR, *LPCOLOR;

typedef enum {
    COLOR_GRAY       =   1,
    COLOR_RGB,
    COLOR_XYZ,
    COLOR_Yxy,
    COLOR_Lab,
    COLOR_3_CHANNEL,        // WORD per channel
    COLOR_CMYK,
    COLOR_5_CHANNEL,        // BYTE per channel
    COLOR_6_CHANNEL,        //      - do -
    COLOR_7_CHANNEL,        //      - do -
    COLOR_8_CHANNEL,        //      - do -
    COLOR_NAMED,
} COLORTYPE;
typedef COLORTYPE *PCOLORTYPE, *LPCOLORTYPE;

//
// Bitmap formats supported
//

typedef enum {

    //
    // 16bpp - 5 bits per channel. The most significant bit is ignored.
    //

    BM_x555RGB      = 0x0000,
    BM_x555XYZ      = 0x0101,
    BM_x555Yxy,
    BM_x555Lab,
    BM_x555G3CH,

    //
    // Packed 8 bits per channel => 8bpp for GRAY and
    // 24bpp for the 3 channel colors, more for hifi channels
    //

    BM_RGBTRIPLETS  = 0x0002,
    BM_BGRTRIPLETS  = 0x0004,
    BM_XYZTRIPLETS  = 0x0201,
    BM_YxyTRIPLETS,
    BM_LabTRIPLETS,
    BM_G3CHTRIPLETS,
    BM_5CHANNEL,
    BM_6CHANNEL,
    BM_7CHANNEL,
    BM_8CHANNEL,
    BM_GRAY,

    //
    // 32bpp - 8 bits per channel. The most significant byte is ignored
    // for the 3 channel colors.
    //

    BM_xRGBQUADS    = 0x0008,
    BM_xBGRQUADS    = 0x0010,
    BM_xXYZQUADS    = 0x0301,
    BM_xYxyQUADS,
    BM_xLabQUADS,
    BM_xG3CHQUADS,
    BM_KYMCQUADS,
    BM_CMYKQUADS    = 0x0020,

    //
    // 32bpp - 10 bits per channel. The 2 most significant bits are ignored.
    //

    BM_10b_RGB      = 0x0009,
    BM_10b_XYZ      = 0x0401,
    BM_10b_Yxy,
    BM_10b_Lab,
    BM_10b_G3CH,

    //
    // 32bpp - named color indices (1-based)
    //

    BM_NAMED_INDEX,

    //
    // Packed 16 bits per channel => 16bpp for GRAY and
    // 48bpp for the 3 channel colors.
    //

    BM_16b_RGB      = 0x000A,
    BM_16b_XYZ      = 0x0501,
    BM_16b_Yxy,
    BM_16b_Lab,
    BM_16b_G3CH,
    BM_16b_GRAY,

    //
    // 16 bpp - 5 bits for Red & Blue, 6 bits for Green
    //

    BM_565RGB       = 0x0001,

} BMFORMAT;
typedef BMFORMAT *PBMFORMAT, *LPBMFORMAT;

//
// Callback function definition
//

typedef BOOL (WINAPI *PBMCALLBACKFN)(ULONG, ULONG, ULONG);
typedef PBMCALLBACKFN LPBMCALLBACKFN;

//
// ICC profile header
//

typedef struct tagPROFILEHEADER {
    DWORD   phSize;             // profile size in bytes
    DWORD   phCMMType;          // CMM for this profile
    DWORD   phVersion;          // profile format version number
    DWORD   phClass;            // type of profile
    DWORD   phDataColorSpace;   // color space of data
    DWORD   phConnectionSpace;  // PCS
    DWORD   phDateTime[3];      // date profile was created
    DWORD   phSignature;        // magic number
    DWORD   phPlatform;         // primary platform
    DWORD   phProfileFlags;     // various bit settings
    DWORD   phManufacturer;     // device manufacturer
    DWORD   phModel;            // device model number
    DWORD   phAttributes[2];    // device attributes
    DWORD   phRenderingIntent;  // rendering intent
    CIEXYZ  phIlluminant;       // profile illuminant
    DWORD   phCreator;          // profile creator
    BYTE    phReserved[44];     // reserved for future use
} PROFILEHEADER;
typedef PROFILEHEADER *PPROFILEHEADER, *LPPROFILEHEADER;

//
// Profile class values
//

#define CLASS_MONITOR           'mntr'
#define CLASS_PRINTER           'prtr'
#define CLASS_SCANNER           'scnr'
#define CLASS_LINK              'link'
#define CLASS_ABSTRACT          'abst'
#define CLASS_COLORSPACE        'spac'
#define CLASS_NAMED             'nmcl'

//
// Color space values
//

#define SPACE_XYZ               'XYZ '
#define SPACE_Lab               'Lab '
#define SPACE_Luv               'Luv '
#define SPACE_YCbCr             'YCbr'
#define SPACE_Yxy               'Yxy '
#define SPACE_RGB               'RGB '
#define SPACE_GRAY              'GRAY'
#define SPACE_HSV               'HSV '
#define SPACE_HLS               'HLS '
#define SPACE_CMYK              'CMYK'
#define SPACE_CMY               'CMY '

//
// Profile flag bitfield values
//

#define FLAG_EMBEDDEDPROFILE    0x00000001
#define FLAG_DEPENDENTONDATA    0x00000002

//
// Profile attributes bitfield values
//

#define ATTRIB_TRANSPARENCY     0x00000001
#define ATTRIB_MATTE            0x00000002

//
// Rendering Intents
//

#define INTENT_PERCEPTUAL               0
#define INTENT_RELATIVE_COLORIMETRIC    1
#define INTENT_SATURATION               2
#define INTENT_ABSOLUTE_COLORIMETRIC    3

//
// Profile data structure
//

typedef struct tagPROFILE {
    DWORD   dwType;             // profile type
    PVOID   pProfileData;       // filename or buffer containing profile
    DWORD   cbDataSize;         // size of profile data
} PROFILE;
typedef PROFILE *PPROFILE, *LPPROFILE;


//
// Profile types to be used in the PROFILE structure
//

#define PROFILE_FILENAME    1   // profile data is NULL terminated filename
#define PROFILE_MEMBUFFER   2   // profile data is a buffer containing
                                // the profile
//
// Desired access mode for opening profiles
//

#define PROFILE_READ        1   // opened for read access
#define PROFILE_READWRITE   2   // opened for read and write access

//
// Handles returned to applications
//

typedef HANDLE HPROFILE;        // handle to profile object
typedef HPROFILE *PHPROFILE;
typedef HANDLE HTRANSFORM;      // handle to color transform object

//
// Use built-in CMM selection in CreateMultiProfileTransform
//

#define INDEX_DONT_CARE     0

//
// Tags found in ICC profiles