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-/* $Xorg: fontstruct.h,v 1.3 2000/08/18 04:05:44 coskrey Exp $ */
-/***********************************************************
-Copyright 1987 by Digital Equipment Corporation, Maynard, 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 name of Digital 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.
-
-******************************************************************/
-/* $XFree86: xc/include/fonts/fontstruct.h,v 3.3 1999/08/21 13:47:34 dawes Exp $ */
-
-#ifndef FONTSTR_H
-#define FONTSTR_H
-
-#include <X11/Xproto.h>
-#include "font.h"
-#include <X11/Xfuncproto.h>
-#include <X11/Xdefs.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 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) (FontPtr /* font */,
- unsigned long /* count */,
- unsigned char * /* chars */,
- FontEncoding /* encoding */,
- unsigned long * /* count */,
- CharInfoPtr * /* glyphs */);
- int (*get_metrics) (FontPtr /* font */,
- unsigned long /* count */,
- unsigned char * /* chars */,
- FontEncoding /* encoding */,
- unsigned long * /* count */,
- xCharInfo ** /* glyphs */);
- void (*unload_font) (FontPtr /* font */);
- void (*unload_glyphs) (FontPtr /* font */);
- FontPathElementPtr fpe;
- pointer svrPrivate;
- pointer fontPrivate;
- pointer fpePrivate;
- int maxPrivate;
- pointer *devPrivates;
-} FontRec;
-
-#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 Bool (*NameCheckFunc) (char *name);
-typedef int (*InitFpeFunc) (FontPathElementPtr fpe);
-typedef int (*FreeFpeFunc) (FontPathElementPtr fpe);
-typedef int (*ResetFpeFunc) (FontPathElementPtr fpe);
-typedef int (*OpenFontFunc) ( pointer client,
- FontPathElementPtr fpe,
- Mask flags,
- char* name,
- int namelen,
- fsBitmapFormat format,
- fsBitmapFormatMask fmask,
- XID id,
- FontPtr* pFont,
- char** aliasName,
- FontPtr non_cachable_font);
-typedef void (*CloseFontFunc) (FontPathElementPtr fpe, FontPtr pFont);
-typedef int (*ListFontsFunc) (pointer client,
- FontPathElementPtr fpe,
- char* pat,
- int len,
- int max,
- FontNamesPtr names);
-
-typedef int (*StartLfwiFunc) (pointer client,
- FontPathElementPtr fpe,
- char* pat,
- int len,
- int max,
- pointer* privatep);
-
-typedef int (*NextLfwiFunc) (pointer client,
- FontPathElementPtr fpe,
- char** name,
- int* namelen,
- FontInfoPtr* info,
- int* numFonts,
- pointer private);
-
-typedef int (*WakeupFpeFunc) (FontPathElementPtr fpe,
- unsigned long* LastSelectMask);
-
-typedef void (*ClientDiedFunc) (pointer client,
- FontPathElementPtr fpe);
-
-typedef int (*LoadGlyphsFunc) (pointer client,
- FontPtr pfont,
- Bool range_flag,
- unsigned int nchars,
- int item_size,
- unsigned char* data);
-
-typedef int (*StartLaFunc) (pointer client,
- FontPathElementPtr fpe,
- char* pat,
- int len,
- int max,
- pointer* privatep);
-
-typedef int (*NextLaFunc) (pointer client,
- FontPathElementPtr fpe,
- char** namep,
- int* namelenp,
- char** resolvedp,
- int* resolvedlenp,
- pointer private);
-
-typedef void (*SetPathFunc)(void);
-
-typedef struct _FPEFunctions {
- NameCheckFunc name_check;
- InitFpeFunc init_fpe;
- ResetFpeFunc reset_fpe;
- FreeFpeFunc free_fpe;
- OpenFontFunc open_font;
- CloseFontFunc close_font;
- ListFontsFunc list_fonts;
- StartLaFunc start_list_fonts_and_aliases;
- NextLaFunc list_next_font_or_alias;
- StartLfwiFunc start_list_fonts_with_info;
- NextLfwiFunc list_next_font_with_info;
- WakeupFpeFunc wakeup_fpe;
- ClientDiedFunc client_died;
- /* for load_glyphs, range_flag = 0 ->
- nchars = # of characters in data
- item_size = bytes/char
- data = list of characters
- range_flag = 1 ->
- nchars = # of fsChar2b's in data
- item_size is ignored
- data = list of fsChar2b's */
- LoadGlyphsFunc load_glyphs;
- SetPathFunc set_path_hook;
-} FPEFunctionsRec, FPEFunctions;
-
-/*
- * 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))
-
-#include "fontproto.h"
-
-#endif /* FONTSTR_H */
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