294 lines
9.1 KiB
C
294 lines
9.1 KiB
C
/***********************************************************
|
|
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.
|
|
|
|
******************************************************************/
|
|
|
|
#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 */
|