1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
/*
Copyright 1986, 1998 The Open Group
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "Xlibint.h"
#ifdef USE_DYNAMIC_XCURSOR
#ifdef __UNIXOS2__
#define RTLD_LAZY 1
#define LIBXCURSOR "Xcursor.dll"
#endif
#include <stdio.h>
#include <string.h>
#if defined(hpux)
#include <dl.h>
#else
#include <dlfcn.h>
#endif
#include "Cr.h"
#if defined(hpux)
typedef shl_dt XModuleType;
#else
typedef void *XModuleType;
#endif
#ifndef LIBXCURSOR
#define LIBXCURSOR "libXcursor.so"
#endif
static char libraryName[] = LIBXCURSOR;
static XModuleType
open_library (void)
{
char *library = libraryName;
char *dot;
XModuleType module;
for (;;)
{
#if defined(hpux)
module = shl_load(library, BIND_DEFERRED, 0L);
#else
module = dlopen(library, RTLD_LAZY);
#endif
if (module)
return module;
dot = strrchr (library, '.');
if (!dot)
break;
*dot = '\0';
}
return 0;
}
static void *
fetch_symbol (XModuleType module, char *under_symbol)
{
void *result = NULL;
char *symbol = under_symbol + 1;
#if defined(hpux)
int getsyms_cnt, i;
struct shl_symbol *symbols;
getsyms_cnt = shl_getsymbols(module, TYPE_PROCEDURE,
EXPORT_SYMBOLS, malloc, &symbols);
for(i=0; i<getsyms_cnt; i++) {
if(!strcmp(symbols[i].name, symbol)) {
result = symbols[i].value;
break;
}
}
if(getsyms_cnt > 0) {
free(symbols);
}
#else
result = dlsym (module, symbol);
if (!result)
result = dlsym (module, under_symbol);
#endif
return result;
}
typedef void (*NoticeCreateBitmapFunc) (Display *dpy,
Pixmap pid,
unsigned int width,
unsigned int height);
typedef void (*NoticePutBitmapFunc) (Display *dpy,
Drawable draw,
XImage *image);
typedef Cursor (*TryShapeBitmapCursorFunc) (Display *dpy,
Pixmap source,
Pixmap mask,
XColor *foreground,
XColor *background,
unsigned int x,
unsigned int y);
typedef Cursor (*TryShapeCursorFunc) (Display *dpy,
Font source_font,
Font mask_font,
unsigned int source_char,
unsigned int mask_char,
XColor _Xconst *foreground,
XColor _Xconst *background);
static XModuleType _XcursorModule;
static Bool _XcursorModuleTried;
#define GetFunc(type,name,ret) {\
static Bool been_here; \
static type staticFunc; \
\
_XLockMutex (_Xglobal_lock); \
if (!been_here) \
{ \
been_here = True; \
if (!_XcursorModuleTried) \
{ \
_XcursorModuleTried = True; \
_XcursorModule = open_library (); \
} \
if (_XcursorModule) \
staticFunc = (type) fetch_symbol (_XcursorModule, "_" name); \
} \
ret = staticFunc; \
_XUnlockMutex (_Xglobal_lock); \
}
static Cursor
_XTryShapeCursor (Display *dpy,
Font source_font,
Font mask_font,
unsigned int source_char,
unsigned int mask_char,
XColor _Xconst *foreground,
XColor _Xconst *background)
{
TryShapeCursorFunc func;
GetFunc (TryShapeCursorFunc, "XcursorTryShapeCursor", func);
if (func)
return (*func) (dpy, source_font, mask_font, source_char, mask_char,
foreground, background);
return None;
}
void
_XNoticeCreateBitmap (Display *dpy,
Pixmap pid,
unsigned int width,
unsigned int height)
{
NoticeCreateBitmapFunc func;
GetFunc (NoticeCreateBitmapFunc, "XcursorNoticeCreateBitmap", func);
if (func)
(*func) (dpy, pid, width, height);
}
void
_XNoticePutBitmap (Display *dpy,
Drawable draw,
XImage *image)
{
NoticePutBitmapFunc func;
GetFunc (NoticePutBitmapFunc, "XcursorNoticePutBitmap", func);
if (func)
(*func) (dpy, draw, image);
}
Cursor
_XTryShapeBitmapCursor (Display *dpy,
Pixmap source,
Pixmap mask,
XColor *foreground,
XColor *background,
unsigned int x,
unsigned int y)
{
TryShapeBitmapCursorFunc func;
GetFunc (TryShapeBitmapCursorFunc, "XcursorTryShapeBitmapCursor", func);
if (func)
return (*func) (dpy, source, mask, foreground, background, x, y);
return None;
}
#endif
Cursor XCreateGlyphCursor(dpy, source_font, mask_font,
source_char, mask_char,
foreground, background)
register Display *dpy;
Font source_font, mask_font;
unsigned int source_char, mask_char;
XColor _Xconst *foreground, *background;
{
Cursor cid;
register xCreateGlyphCursorReq *req;
#ifdef USE_DYNAMIC_XCURSOR
cid = _XTryShapeCursor (dpy, source_font, mask_font,
source_char, mask_char, foreground, background);
if (cid)
return cid;
#endif
LockDisplay(dpy);
GetReq(CreateGlyphCursor, req);
cid = req->cid = XAllocID(dpy);
req->source = source_font;
req->mask = mask_font;
req->sourceChar = source_char;
req->maskChar = mask_char;
req->foreRed = foreground->red;
req->foreGreen = foreground->green;
req->foreBlue = foreground->blue;
req->backRed = background->red;
req->backGreen = background->green;
req->backBlue = background->blue;
UnlockDisplay(dpy);
SyncHandle();
return (cid);
}
|
