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Annotation of researchv9/X11/src/X.V11R1/server/include/font.h, revision 1.1

1.1     ! root        1: /***********************************************************
        !             2: Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
        !             3: and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
        !             4: 
        !             5:                         All Rights Reserved
        !             6: 
        !             7: Permission to use, copy, modify, and distribute this software and its 
        !             8: documentation for any purpose and without fee is hereby granted, 
        !             9: provided that the above copyright notice appear in all copies and that
        !            10: both that copyright notice and this permission notice appear in 
        !            11: supporting documentation, and that the names of Digital or MIT not be
        !            12: used in advertising or publicity pertaining to distribution of the
        !            13: software without specific, written prior permission.  
        !            14: 
        !            15: DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            16: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            17: DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            18: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            19: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            20: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            21: SOFTWARE.
        !            22: 
        !            23: ******************************************************************/
        !            24: #ifndef FONT_H
        !            25: #define FONT_H 1
        !            26: #define FONT_FILE_VERSION      4
        !            27: 
        !            28: #include "servermd.h"
        !            29: 
        !            30: #define NullCharInfo ((CharInfoPtr)0)
        !            31: #define NullFontInfo ((FontInfoPtr)0)
        !            32: #define LeftToRight 0
        !            33: #define RightToLeft 1
        !            34: #define BottomToTop 2
        !            35: #define TopToBottom 3
        !            36: /*
        !            37:  * for linear char sets
        !            38:  */
        !            39: #define n1dChars(pfi) ((pfi)->lastCol - (pfi)->firstCol + 1)
        !            40: #define chFirst firstCol       /* usage:  pfi->chFirst */
        !            41: #define chLast lastCol         /* usage:  pfi->chLast */
        !            42: 
        !            43: /*
        !            44:  * for 2D char sets
        !            45:  */
        !            46: #define n2dChars(pfi)  (((pfi)->lastCol - (pfi)->firstCol + 1) * \
        !            47:                         ((pfi)->lastRow - (pfi)->firstRow + 1))
        !            48: 
        !            49: /*
        !            50:  * Some macros that font converters and font i/o routines will need.
        !            51:  */
        !            52: 
        !            53: #define        GLWIDTHPIXELS(pci) \
        !            54:        ((pci)->metrics.rightSideBearing - (pci)->metrics.leftSideBearing)
        !            55: #define        GLHEIGHTPIXELS(pci) \
        !            56:        ((pci)->metrics.ascent + (pci)->metrics.descent)
        !            57: 
        !            58: 
        !            59: /*
        !            60:  * the following macro definitions describe a font file image in memory
        !            61:  */
        !            62: #define ADDRCharInfoRec( pfi)  \
        !            63:        ((CharInfoRec *) &(pfi)[1])
        !            64: 
        !            65: #define ADDRCHARGLYPHS( pfi)   \
        !            66:        (((char *) &(pfi)[1]) + BYTESOFCHARINFO(pfi))
        !            67: #define ADDRXTHISCHARINFO( pf, ch ) \
        !            68:         ((CharInfoRec *) &((pf)->pCI[ch]))
        !            69: 
        !            70: 
        !            71: /*
        !            72:  * pad out glyphs to a CARD32 boundary
        !            73:  */
        !            74: #define ADDRXFONTPROPS( pfi)  \
        !            75:        ((DIXFontProp *) ((char *)ADDRCHARGLYPHS( pfi) + BYTESOFGLYPHINFO(pfi)))
        !            76: 
        !            77: #define ADDRSTRINGTAB( pfi)  \
        !            78:        ((char *)ADDRXFONTPROPS( pfi) + BYTESOFPROPINFO(pfi))
        !            79: 
        !            80: #define        BYTESOFFONTINFO(pfi)    (sizeof(FontInfoRec))
        !            81: #define BYTESOFCHARINFO(pfi)   (sizeof(CharInfoRec) * n2dChars(pfi))
        !            82: #define        BYTESOFPROPINFO(pfi)    (sizeof(FontPropRec) * (pfi)->nProps)
        !            83: #define        BYTESOFSTRINGINFO(pfi)  ((pfi)->lenStrings)
        !            84: #define        BYTESOFGLYPHINFO(pfi)   (((pfi)->maxbounds.byteOffset+3) & ~0x3)
        !            85:  
        !            86: #define        GLYPHWIDTHBYTES(pci)    (((GLYPHWIDTHPIXELS(pci))+7) >> 3)
        !            87: #define        GLYPHHEIGHTPIXELS(pci)  (pci->metrics.ascent + pci->metrics.descent)
        !            88: #define        GLYPHWIDTHPIXELS(pci)   (pci->metrics.rightSideBearing \
        !            89:                                    - pci->metrics.leftSideBearing)
        !            90: #define GLWIDTHPADDED( bc)     ((bc+7) & ~0x7)
        !            91: 
        !            92: #if GLYPHPADBYTES == 0 || GLYPHPADBYTES == 1
        !            93: #define        GLYPHWIDTHBYTESPADDED(pci)      (GLYPHWIDTHBYTES(pci))
        !            94: #endif
        !            95: 
        !            96: #if GLYPHPADBYTES == 2
        !            97: #define        GLYPHWIDTHBYTESPADDED(pci)      ((GLYPHWIDTHBYTES(pci)+1) & ~0x1)
        !            98: #endif
        !            99: 
        !           100: #if GLYPHPADBYTES == 4
        !           101: #define        GLYPHWIDTHBYTESPADDED(pci)      ((GLYPHWIDTHBYTES(pci)+3) & ~0x3)
        !           102: #endif
        !           103: 
        !           104: #if GLYPHPADBYTES == 8 /* for a cray? */
        !           105: #define        GLYPHWIDTHBYTESPADDED(pci)      ((GLYPHWIDTHBYTES(pci)+7) & ~0x7)
        !           106: #endif
        !           107: 
        !           108: typedef struct _FontProp *FontPropPtr;
        !           109: typedef struct _CharInfo *CharInfoPtr;
        !           110: typedef struct _FontInfo *FontInfoPtr;
        !           111: typedef unsigned int DrawDirection;
        !           112: typedef struct _ExtentInfo *ExtentInfoPtr;
        !           113: 
        !           114: 
        !           115: #endif /* FONT_H */

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