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source: vbox/trunk/src/VBox/Additions/x11/x11include/fontsproto-2.1.0/X11/fonts/fontstruct.h@ 54853

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export more X11 stuff to OSE
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1/***********************************************************
2Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
3
4 All Rights Reserved
5
6Permission to use, copy, modify, and distribute this software and its
7documentation for any purpose and without fee is hereby granted,
8provided that the above copyright notice appear in all copies and that
9both that copyright notice and this permission notice appear in
10supporting documentation, and that the name of Digital not be
11used in advertising or publicity pertaining to distribution of the
12software without specific, written prior permission.
13
14DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
15ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
16DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
17ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
18WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
19ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
20SOFTWARE.
21
22******************************************************************/
23
24#ifndef FONTSTR_H
25#define FONTSTR_H
26
27#include <X11/Xproto.h>
28#include "font.h"
29#include <X11/Xfuncproto.h>
30#include <X11/Xdefs.h>
31
32/*
33 * This version of the server font data strucutre is only for describing
34 * the in memory data structure. The file structure is not necessarily a
35 * copy of this. That is up to the compiler and the OS layer font loading
36 * machinery.
37 */
38
39#define GLYPHPADOPTIONS 4 /* 1, 2, 4, or 8 */
40
41typedef struct _FontProp {
42 long name;
43 long value; /* assumes ATOM is not larger than INT32 */
44} FontPropRec;
45
46typedef struct _FontResolution {
47 unsigned short x_resolution;
48 unsigned short y_resolution;
49 unsigned short point_size;
50} FontResolutionRec;
51
52typedef struct _ExtentInfo {
53 DrawDirection drawDirection;
54 int fontAscent;
55 int fontDescent;
56 int overallAscent;
57 int overallDescent;
58 int overallWidth;
59 int overallLeft;
60 int overallRight;
61} ExtentInfoRec;
62
63typedef struct _CharInfo {
64 xCharInfo metrics; /* info preformatted for Queries */
65 char *bits; /* pointer to glyph image */
66} CharInfoRec;
67
68/*
69 * Font is created at font load time. It is specific to a single encoding.
70 * e.g. not all of the glyphs in a font may be part of a single encoding.
71 */
72
73typedef struct _FontInfo {
74 unsigned short firstCol;
75 unsigned short lastCol;
76 unsigned short firstRow;
77 unsigned short lastRow;
78 unsigned short defaultCh;
79 unsigned int noOverlap:1;
80 unsigned int terminalFont:1;
81 unsigned int constantMetrics:1;
82 unsigned int constantWidth:1;
83 unsigned int inkInside:1;
84 unsigned int inkMetrics:1;
85 unsigned int allExist:1;
86 unsigned int drawDirection:2;
87 unsigned int cachable:1;
88 unsigned int anamorphic:1;
89 short maxOverlap;
90 short pad;
91 xCharInfo maxbounds;
92 xCharInfo minbounds;
93 xCharInfo ink_maxbounds;
94 xCharInfo ink_minbounds;
95 short fontAscent;
96 short fontDescent;
97 int nprops;
98 FontPropPtr props;
99 char *isStringProp;
100} FontInfoRec;
101
102typedef struct _Font {
103 int refcnt;
104 FontInfoRec info;
105 char bit;
106 char byte;
107 char glyph;
108 char scan;
109 fsBitmapFormat format;
110 int (*get_glyphs) (FontPtr /* font */,
111 unsigned long /* count */,
112 unsigned char * /* chars */,
113 FontEncoding /* encoding */,
114 unsigned long * /* count */,
115 CharInfoPtr * /* glyphs */);
116 int (*get_metrics) (FontPtr /* font */,
117 unsigned long /* count */,
118 unsigned char * /* chars */,
119 FontEncoding /* encoding */,
120 unsigned long * /* count */,
121 xCharInfo ** /* glyphs */);
122 void (*unload_font) (FontPtr /* font */);
123 void (*unload_glyphs) (FontPtr /* font */);
124 FontPathElementPtr fpe;
125 pointer svrPrivate;
126 pointer fontPrivate;
127 pointer fpePrivate;
128 int maxPrivate;
129 pointer *devPrivates;
130} FontRec;
131
132#define FontGetPrivate(pFont,n) ((n) > (pFont)->maxPrivate ? (pointer) 0 : \
133 (pFont)->devPrivates[n])
134
135#define FontSetPrivate(pFont,n,ptr) ((n) > (pFont)->maxPrivate ? \
136 _FontSetNewPrivate (pFont, n, ptr) : \
137 ((((pFont)->devPrivates[n] = (ptr)) != 0) || TRUE))
138
139typedef struct _FontNames {
140 int nnames;
141 int size;
142 int *length;
143 char **names;
144} FontNamesRec;
145
146/* External view of font paths */
147typedef struct _FontPathElement {
148 int name_length;
149 char *name;
150 int type;
151 int refcount;
152 pointer private;
153} FontPathElementRec;
154
155typedef Bool (*NameCheckFunc) (char *name);
156typedef int (*InitFpeFunc) (FontPathElementPtr fpe);
157typedef int (*FreeFpeFunc) (FontPathElementPtr fpe);
158typedef int (*ResetFpeFunc) (FontPathElementPtr fpe);
159typedef int (*OpenFontFunc) ( pointer client,
160 FontPathElementPtr fpe,
161 Mask flags,
162 char* name,
163 int namelen,
164 fsBitmapFormat format,
165 fsBitmapFormatMask fmask,
166 XID id,
167 FontPtr* pFont,
168 char** aliasName,
169 FontPtr non_cachable_font);
170typedef void (*CloseFontFunc) (FontPathElementPtr fpe, FontPtr pFont);
171typedef int (*ListFontsFunc) (pointer client,
172 FontPathElementPtr fpe,
173 char* pat,
174 int len,
175 int max,
176 FontNamesPtr names);
177
178typedef int (*StartLfwiFunc) (pointer client,
179 FontPathElementPtr fpe,
180 char* pat,
181 int len,
182 int max,
183 pointer* privatep);
184
185typedef int (*NextLfwiFunc) (pointer client,
186 FontPathElementPtr fpe,
187 char** name,
188 int* namelen,
189 FontInfoPtr* info,
190 int* numFonts,
191 pointer private);
192
193typedef int (*WakeupFpeFunc) (FontPathElementPtr fpe,
194 unsigned long* LastSelectMask);
195
196typedef void (*ClientDiedFunc) (pointer client,
197 FontPathElementPtr fpe);
198
199typedef int (*LoadGlyphsFunc) (pointer client,
200 FontPtr pfont,
201 Bool range_flag,
202 unsigned int nchars,
203 int item_size,
204 unsigned char* data);
205
206typedef int (*StartLaFunc) (pointer client,
207 FontPathElementPtr fpe,
208 char* pat,
209 int len,
210 int max,
211 pointer* privatep);
212
213typedef int (*NextLaFunc) (pointer client,
214 FontPathElementPtr fpe,
215 char** namep,
216 int* namelenp,
217 char** resolvedp,
218 int* resolvedlenp,
219 pointer private);
220
221typedef void (*SetPathFunc)(void);
222
223typedef struct _FPEFunctions {
224 NameCheckFunc name_check;
225 InitFpeFunc init_fpe;
226 ResetFpeFunc reset_fpe;
227 FreeFpeFunc free_fpe;
228 OpenFontFunc open_font;
229 CloseFontFunc close_font;
230 ListFontsFunc list_fonts;
231 StartLaFunc start_list_fonts_and_aliases;
232 NextLaFunc list_next_font_or_alias;
233 StartLfwiFunc start_list_fonts_with_info;
234 NextLfwiFunc list_next_font_with_info;
235 WakeupFpeFunc wakeup_fpe;
236 ClientDiedFunc client_died;
237 /* for load_glyphs, range_flag = 0 ->
238 nchars = # of characters in data
239 item_size = bytes/char
240 data = list of characters
241 range_flag = 1 ->
242 nchars = # of fsChar2b's in data
243 item_size is ignored
244 data = list of fsChar2b's */
245 LoadGlyphsFunc load_glyphs;
246 SetPathFunc set_path_hook;
247} FPEFunctionsRec, FPEFunctions;
248
249/*
250 * Various macros for computing values based on contents of
251 * the above structures
252 */
253
254#define GLYPHWIDTHPIXELS(pci) \
255 ((pci)->metrics.rightSideBearing - (pci)->metrics.leftSideBearing)
256
257#define GLYPHHEIGHTPIXELS(pci) \
258 ((pci)->metrics.ascent + (pci)->metrics.descent)
259
260#define GLYPHWIDTHBYTES(pci) (((GLYPHWIDTHPIXELS(pci))+7) >> 3)
261
262#define GLYPHWIDTHPADDED(bc) (((bc)+7) & ~0x7)
263
264#define BYTES_PER_ROW(bits, nbytes) \
265 ((nbytes) == 1 ? (((bits)+7)>>3) /* pad to 1 byte */ \
266 :(nbytes) == 2 ? ((((bits)+15)>>3)&~1) /* pad to 2 bytes */ \
267 :(nbytes) == 4 ? ((((bits)+31)>>3)&~3) /* pad to 4 bytes */ \
268 :(nbytes) == 8 ? ((((bits)+63)>>3)&~7) /* pad to 8 bytes */ \
269 : 0)
270
271#define BYTES_FOR_GLYPH(ci,pad) (GLYPHHEIGHTPIXELS(ci) * \
272 BYTES_PER_ROW(GLYPHWIDTHPIXELS(ci),pad))
273/*
274 * Macros for computing different bounding boxes for fonts; from
275 * the font protocol
276 */
277
278#define FONT_MAX_ASCENT(pi) ((pi)->fontAscent > (pi)->ink_maxbounds.ascent ? \
279 (pi)->fontAscent : (pi)->ink_maxbounds.ascent)
280#define FONT_MAX_DESCENT(pi) ((pi)->fontDescent > (pi)->ink_maxbounds.descent ? \
281 (pi)->fontDescent : (pi)->ink_maxbounds.descent)
282#define FONT_MAX_HEIGHT(pi) (FONT_MAX_ASCENT(pi) + FONT_MAX_DESCENT(pi))
283#define FONT_MIN_LEFT(pi) ((pi)->ink_minbounds.leftSideBearing < 0 ? \
284 (pi)->ink_minbounds.leftSideBearing : 0)
285#define FONT_MAX_RIGHT(pi) ((pi)->ink_maxbounds.rightSideBearing > \
286 (pi)->ink_maxbounds.characterWidth ? \
287 (pi)->ink_maxbounds.rightSideBearing : \
288 (pi)->ink_maxbounds.characterWidth)
289#define FONT_MAX_WIDTH(pi) (FONT_MAX_RIGHT(pi) - FONT_MIN_LEFT(pi))
290
291#include "fontproto.h"
292
293#endif /* FONTSTR_H */
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