/Build/source/libs/t1lib/t1lib-5.1.2/lib/type1/fontstruct.h
C Header | 224 lines | 150 code | 29 blank | 45 comment | 6 complexity | aade26ff67b4fa9da490dac17b8b01b9 MD5 | raw file
- /* $Header: fontstruct.h,v 1.10 91/07/22 15:37:41 keith Exp $ */
- /***********************************************************
- Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
- and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
- All Rights Reserved
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Digital or MIT not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
- DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
- ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
- @(#)fontstruct.h 3.2 91/04/15
- ******************************************************************/
- #ifndef FONTSTR_H
- #define FONTSTR_H
- #ifdef XSERVER
- #include <X11/Xproto.h>
- #else
- #include "Xstuff.h"
- #endif
- #include "font.h"
- /*
- * This version of the server font data strucutre is only for describing
- * the in memory data structure. The file structure is not necessarily a
- * copy of this. That is up to the compiler and the OS layer font loading
- * machinery.
- */
- #define GLYPHPADOPTIONS 4 /* 1, 2, 4, or 8 */
- typedef enum {
- Linear8Bit, TwoD8Bit, Linear16Bit, TwoD16Bit
- } FontEncoding;
- typedef struct _FontProp {
- long name;
- long value; /* assumes ATOM is not larger than INT32 */
- } FontPropRec;
- typedef struct _FontResolution {
- unsigned short x_resolution;
- unsigned short y_resolution;
- unsigned short point_size;
- } FontResolutionRec;
- typedef struct _ExtentInfo {
- DrawDirection drawDirection;
- int fontAscent;
- int fontDescent;
- int overallAscent;
- int overallDescent;
- int overallWidth;
- int overallLeft;
- int overallRight;
- } ExtentInfoRec;
- typedef struct _CharInfo {
- xCharInfo metrics; /* info preformatted for Queries */
- char *bits; /* pointer to glyph image */
- } CharInfoRec;
- /*
- * Font is created at font load time. It is specific to a single encoding.
- * e.g. not all of the glyphs in a font may be part of a single encoding.
- */
- typedef struct _FontInfo {
- unsigned short firstCol;
- unsigned short lastCol;
- unsigned short firstRow;
- unsigned short lastRow;
- unsigned short defaultCh;
- unsigned int noOverlap:1;
- unsigned int terminalFont:1;
- unsigned int constantMetrics:1;
- unsigned int constantWidth:1;
- unsigned int inkInside:1;
- unsigned int inkMetrics:1;
- unsigned int allExist:1;
- unsigned int drawDirection:2;
- unsigned int cachable:1;
- unsigned int anamorphic:1;
- short maxOverlap;
- short pad;
- xCharInfo maxbounds;
- xCharInfo minbounds;
- xCharInfo ink_maxbounds;
- xCharInfo ink_minbounds;
- short fontAscent;
- short fontDescent;
- int nprops;
- FontPropPtr props;
- char *isStringProp;
- } FontInfoRec;
- typedef struct _Font {
- int refcnt;
- FontInfoRec info;
- char bit;
- char byte;
- char glyph;
- char scan;
- fsBitmapFormat format;
- int (*get_glyphs) ( /* font, count, chars, encoding, count, glyphs */ );
- int (*get_metrics) ( /* font, count, chars, encoding, count, glyphs */ );
- int (*get_bitmaps) (/* client, font, flags, ranges, nranges,
- nextents, extents */ );
- int (*get_extents) (/* client, font, format, flags, ranges,
- nranges, nglyphs, offsets, glyphs */ );
- void (*unload_font) ( /* font */ );
- FontPathElementPtr fpe;
- pointer svrPrivate;
- pointer fontPrivate;
- pointer fpePrivate;
- int maxPrivate;
- pointer *devPrivates;
- } FontRec;
- extern Bool _FontSetNewPrivate (/* pFont, n, ptr */);
- extern int AllocateFontPrivateIndex ();
- #define FontGetPrivate(pFont,n) ((n) > (pFont)->maxPrivate ? (pointer) 0 : \
- (pFont)->devPrivates[n])
- #define FontSetPrivate(pFont,n,ptr) ((n) > (pFont)->maxPrivate ? \
- _FontSetNewPrivate (pFont, n, ptr) : \
- ((((pFont)->devPrivates[n] = (ptr)) != 0) || TRUE))
- typedef struct _FontNames {
- int nnames;
- int size;
- int *length;
- char **names;
- } FontNamesRec;
- /* External view of font paths */
- typedef struct _FontPathElement {
- int name_length;
- char *name;
- int type;
- int refcount;
- pointer private;
- } FontPathElementRec;
- typedef struct _FPEFunctions {
- int (*name_check) ( /* name */ );
- int (*init_fpe) ( /* fpe */ );
- int (*reset_fpe) ( /* fpe */ );
- int (*free_fpe) ( /* fpe */ );
- int (*open_font) ( /* client, fpe, flags, name, namelen, format,
- fid, ppfont, alias */ );
- int (*close_font) ( /* pfont */ );
- int (*list_fonts) ( /* client, fpe, pattern, patlen, maxnames,
- paths */ );
- int (*start_list_fonts_with_info) ( /* client, fpe, name, namelen,
- maxnames, data */ );
- int (*list_next_font_with_info) ( /* client, fpe, name, namelen,
- info, num, data */ );
- int (*wakeup_fpe) ( /* fpe, mask */ );
- int (*client_died) ( /* client, fpe */ );
- } FPEFunctionsRec, FPEFunctions;
- extern int InitFPETypes();
- /*
- * Various macros for computing values based on contents of
- * the above structures
- */
- #define GLYPHWIDTHPIXELS(pci) \
- ((pci)->metrics.rightSideBearing - (pci)->metrics.leftSideBearing)
- #define GLYPHHEIGHTPIXELS(pci) \
- ((pci)->metrics.ascent + (pci)->metrics.descent)
- #define GLYPHWIDTHBYTES(pci) (((GLYPHWIDTHPIXELS(pci))+7) >> 3)
- #define GLYPHWIDTHPADDED(bc) (((bc)+7) & ~0x7)
- #define BYTES_PER_ROW(bits, nbytes) \
- ((nbytes) == 1 ? (((bits)+7)>>3) /* pad to 1 byte */ \
- :(nbytes) == 2 ? ((((bits)+15)>>3)&~1) /* pad to 2 bytes */ \
- :(nbytes) == 4 ? ((((bits)+31)>>3)&~3) /* pad to 4 bytes */ \
- :(nbytes) == 8 ? ((((bits)+63)>>3)&~7) /* pad to 8 bytes */ \
- : 0)
- #define BYTES_FOR_GLYPH(ci,pad) (GLYPHHEIGHTPIXELS(ci) * \
- BYTES_PER_ROW(GLYPHWIDTHPIXELS(ci),pad))
- /*
- * Macros for computing different bounding boxes for fonts; from
- * the font protocol
- */
- #define FONT_MAX_ASCENT(pi) ((pi)->fontAscent > (pi)->ink_maxbounds.ascent ? \
- (pi)->fontAscent : (pi)->ink_maxbounds.ascent)
- #define FONT_MAX_DESCENT(pi) ((pi)->fontDescent > (pi)->ink_maxbounds.descent ? \
- (pi)->fontDescent : (pi)->ink_maxbounds.descent)
- #define FONT_MAX_HEIGHT(pi) (FONT_MAX_ASCENT(pi) + FONT_MAX_DESCENT(pi))
- #define FONT_MIN_LEFT(pi) ((pi)->ink_minbounds.leftSideBearing < 0 ? \
- (pi)->ink_minbounds.leftSideBearing : 0)
- #define FONT_MAX_RIGHT(pi) ((pi)->ink_maxbounds.rightSideBearing > \
- (pi)->ink_maxbounds.characterWidth ? \
- (pi)->ink_maxbounds.rightSideBearing : \
- (pi)->ink_maxbounds.characterWidth)
- #define FONT_MAX_WIDTH(pi) (FONT_MAX_RIGHT(pi) - FONT_MIN_LEFT(pi))
- #endif /* FONTSTR_H */