Imported Upstream version 1.15.1
[deb_xorg-server.git] / mi / miinitext.c
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1/***********************************************************
2
3Copyright 1987, 1998 The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
26
27 All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Digital not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
44
45******************************************************************/
46
47/*
48 * Copyright (c) 2000 by The XFree86 Project, Inc.
49 *
50 * Permission is hereby granted, free of charge, to any person obtaining a
51 * copy of this software and associated documentation files (the "Software"),
52 * to deal in the Software without restriction, including without limitation
53 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
54 * and/or sell copies of the Software, and to permit persons to whom the
55 * Software is furnished to do so, subject to the following conditions:
56 *
57 * The above copyright notice and this permission notice shall be included in
58 * all copies or substantial portions of the Software.
59 *
60 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
61 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
62 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
63 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
64 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
65 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
66 * OTHER DEALINGS IN THE SOFTWARE.
67 *
68 * Except as contained in this notice, the name of the copyright holder(s)
69 * and author(s) shall not be used in advertising or otherwise to promote
70 * the sale, use or other dealings in this Software without prior written
71 * authorization from the copyright holder(s) and author(s).
72 */
73
74#ifdef HAVE_DIX_CONFIG_H
75#include <dix-config.h>
76#endif
77
78#ifdef HAVE_XORG_CONFIG_H
79#include <xorg-config.h>
80#include "xf86Extensions.h"
81#endif
82
83#ifdef HAVE_DMX_CONFIG_H
84#include <dmx-config.h>
85#undef XV
86#undef DBE
87#undef SCREENSAVER
88#undef RANDR
89#undef DAMAGE
90#undef COMPOSITE
91#undef MITSHM
92#endif
93
94#ifdef HAVE_XNEST_CONFIG_H
95#include <xnest-config.h>
96#undef COMPOSITE
97#undef DPMSExtension
98#endif
99
100#ifdef HAVE_KDRIVE_CONFIG_H
101#include <kdrive-config.h>
102#endif
103
104#ifdef HAVE_XGL_CONFIG_H
105#include <xgl-config.h>
106#endif
107
108#include "misc.h"
109#include "extension.h"
110#include "extinit.h"
111#include "micmap.h"
112#include "globals.h"
113
114/* The following is only a small first step towards run-time
115 * configurable extensions.
116 */
117typedef struct {
118 const char *name;
119 Bool *disablePtr;
120} ExtensionToggle;
121
122static ExtensionToggle ExtensionToggleList[] = {
123 /* sort order is extension name string as shown in xdpyinfo */
124 {"Generic Events", &noGEExtension},
125#ifdef COMPOSITE
126 {"Composite", &noCompositeExtension},
127#endif
128#ifdef DAMAGE
129 {"DAMAGE", &noDamageExtension},
130#endif
131#ifdef DBE
132 {"DOUBLE-BUFFER", &noDbeExtension},
133#endif
134#ifdef DPMSExtension
135 {"DPMS", &noDPMSExtension},
136#endif
137#ifdef GLXEXT
138 {"GLX", &noGlxExtension},
139#endif
140#ifdef SCREENSAVER
141 {"MIT-SCREEN-SAVER", &noScreenSaverExtension},
142#endif
143#ifdef MITSHM
144 {SHMNAME, &noMITShmExtension},
145#endif
146#ifdef RANDR
147 {"RANDR", &noRRExtension},
148#endif
149 {"RENDER", &noRenderExtension},
150#ifdef XCSECURITY
151 {"SECURITY", &noSecurityExtension},
152#endif
153#ifdef RES
154 {"X-Resource", &noResExtension},
155#endif
156#ifdef XF86BIGFONT
157 {"XFree86-Bigfont", &noXFree86BigfontExtension},
158#endif
159#ifdef XORGSERVER
160#ifdef XFreeXDGA
161 {"XFree86-DGA", &noXFree86DGAExtension},
162#endif
163#ifdef XF86DRI
164 {"XFree86-DRI", &noXFree86DRIExtension},
165#endif
166#ifdef XF86VIDMODE
167 {"XFree86-VidModeExtension", &noXFree86VidModeExtension},
168#endif
169#endif
170 {"XFIXES", &noXFixesExtension},
171#ifdef PANORAMIX
172 {"XINERAMA", &noPanoramiXExtension},
173#endif
174 {"XInputExtension", NULL},
175 {"XKEYBOARD", NULL},
176#ifdef XSELINUX
177 {"SELinux", &noSELinuxExtension},
178#endif
179 {"XTEST", &noTestExtensions},
180#ifdef XV
181 {"XVideo", &noXvExtension},
182#endif
183};
184
185Bool
186EnableDisableExtension(const char *name, Bool enable)
187{
188 ExtensionToggle *ext;
189 int i;
190
191 for (i = 0; i < ARRAY_SIZE(ExtensionToggleList); i++) {
192 ext = &ExtensionToggleList[i];
193 if (strcmp(name, ext->name) == 0) {
194 if (ext->disablePtr != NULL) {
195 *ext->disablePtr = !enable;
196 return TRUE;
197 }
198 else {
199 /* Extension is always on, impossible to disable */
200 return enable; /* okay if they wanted to enable,
201 fail if they tried to disable */
202 }
203 }
204 }
205
206 return FALSE;
207}
208
209void
210EnableDisableExtensionError(const char *name, Bool enable)
211{
212 ExtensionToggle *ext;
213 int i;
214 Bool found = FALSE;
215
216 for (i = 0; i < ARRAY_SIZE(ExtensionToggleList); i++) {
217 ext = &ExtensionToggleList[i];
218 if ((strcmp(name, ext->name) == 0) && (ext->disablePtr == NULL)) {
219 ErrorF("[mi] Extension \"%s\" can not be disabled\n", name);
220 found = TRUE;
221 break;
222 }
223 }
224 if (found == FALSE)
225 ErrorF("[mi] Extension \"%s\" is not recognized\n", name);
226 ErrorF("[mi] Only the following extensions can be run-time %s:\n",
227 enable ? "enabled" : "disabled");
228 for (i = 0; i < ARRAY_SIZE(ExtensionToggleList); i++) {
229 ext = &ExtensionToggleList[i];
230 if (ext->disablePtr != NULL) {
231 ErrorF("[mi] %s\n", ext->name);
232 }
233 }
234}
235
236/* List of built-in (statically linked) extensions */
237static ExtensionModule staticExtensions[] = {
238 {GEExtensionInit, "Generic Event Extension", &noGEExtension},
239 {ShapeExtensionInit, "SHAPE", NULL},
240#ifdef MITSHM
241 {ShmExtensionInit, SHMNAME, &noMITShmExtension},
242#endif
243 {XInputExtensionInit, "XInputExtension", NULL},
244#ifdef XTEST
245 {XTestExtensionInit, XTestExtensionName, &noTestExtensions},
246#endif
247 {BigReqExtensionInit, "BIG-REQUESTS", NULL},
248 {SyncExtensionInit, "SYNC", NULL},
249 {XkbExtensionInit, XkbName, NULL},
250 {XCMiscExtensionInit, "XC-MISC", NULL},
251#ifdef XCSECURITY
252 {SecurityExtensionInit, SECURITY_EXTENSION_NAME, &noSecurityExtension},
253#endif
254#ifdef PANORAMIX
255 {PanoramiXExtensionInit, PANORAMIX_PROTOCOL_NAME, &noPanoramiXExtension},
256#endif
257#ifdef INXQUARTZ
258 /* PseudoramiXExtensionInit must be done before RRExtensionInit, or
259 * XQuartz will render windows offscreen.
260 */
261 {PseudoramiXExtensionInit, "PseudoramiX", &noPseudoramiXExtension},
262#endif
263 /* must be before Render to layer DisplayCursor correctly */
264 {XFixesExtensionInit, "XFIXES", &noXFixesExtension},
265#ifdef XF86BIGFONT
266 {XFree86BigfontExtensionInit, XF86BIGFONTNAME, &noXFree86BigfontExtension},
267#endif
268 {RenderExtensionInit, "RENDER", &noRenderExtension},
269#ifdef RANDR
270 {RRExtensionInit, "RANDR", &noRRExtension},
271#endif
272#ifdef COMPOSITE
273 {CompositeExtensionInit, "COMPOSITE", &noCompositeExtension},
274#endif
275#ifdef DAMAGE
276 {DamageExtensionInit, "DAMAGE", &noDamageExtension},
277#endif
278#ifdef SCREENSAVER
279 {ScreenSaverExtensionInit, ScreenSaverName, &noScreenSaverExtension},
280#endif
281#ifdef DBE
282 {DbeExtensionInit, "DOUBLE-BUFFER", &noDbeExtension},
283#endif
284#ifdef XRECORD
285 {RecordExtensionInit, "RECORD", &noTestExtensions},
286#endif
287#ifdef DPMSExtension
288 {DPMSExtensionInit, DPMSExtensionName, &noDPMSExtension},
289#endif
290#ifdef PRESENT
291 {present_extension_init, PRESENT_NAME, NULL},
292#endif
293#ifdef DRI3
294 {dri3_extension_init, DRI3_NAME, NULL},
295#endif
296#ifdef RES
297 {ResExtensionInit, XRES_NAME, &noResExtension},
298#endif
299#ifdef XV
300 {XvExtensionInit, XvName, &noXvExtension},
301 {XvMCExtensionInit, XvMCName, &noXvExtension},
302#endif
303#ifdef XSELINUX
304 {SELinuxExtensionInit, SELINUX_EXTENSION_NAME, &noSELinuxExtension},
305#endif
306};
307
308static ExtensionModule *ExtensionModuleList = NULL;
309static int numExtensionModules = 0;
310
311static void
312AddStaticExtensions(void)
313{
314 static Bool listInitialised = FALSE;
315 int i;
316
317 if (listInitialised)
318 return;
319 listInitialised = TRUE;
320
321 /* Add built-in extensions to the list. */
322 for (i = 0; i < ARRAY_SIZE(staticExtensions); i++)
323 LoadExtension(&staticExtensions[i], TRUE);
324}
325
326void
327InitExtensions(int argc, char *argv[])
328{
329 int i;
330 ExtensionModule *ext;
331
332 AddStaticExtensions();
333
334 for (i = 0; ExtensionModuleList[i].name != NULL; i++) {
335 ext = &ExtensionModuleList[i];
336 if (ext->initFunc != NULL &&
337 (ext->disablePtr == NULL || !*ext->disablePtr)) {
338 (ext->initFunc) ();
339 }
340 }
341}
342
343static ExtensionModule *
344NewExtensionModule(void)
345{
346 ExtensionModule *save = ExtensionModuleList;
347 int n;
348
349 /* Make sure built-in extensions get added to the list before those
350 * in modules. */
351 AddStaticExtensions();
352
353 /* Sanity check */
354 if (!ExtensionModuleList)
355 numExtensionModules = 0;
356
357 n = numExtensionModules + 1;
358 ExtensionModuleList = realloc(ExtensionModuleList,
359 (n + 1) * sizeof(ExtensionModule));
360 if (ExtensionModuleList == NULL) {
361 ExtensionModuleList = save;
362 return NULL;
363 }
364 else {
365 numExtensionModules++;
366 ExtensionModuleList[numExtensionModules].name = NULL;
367 return ExtensionModuleList + (numExtensionModules - 1);
368 }
369}
370
371void
372LoadExtension(const ExtensionModule * e, Bool builtin)
373{
374 ExtensionModule *newext;
375
376 if (e == NULL || e->name == NULL)
377 return;
378
379 if (!(newext = NewExtensionModule()))
380 return;
381
382 if (builtin)
383 ErrorF("Initializing built-in extension %s\n", e->name);
384 else
385 ErrorF("Loading extension %s\n", e->name);
386
387 newext->name = e->name;
388 newext->initFunc = e->initFunc;
389 newext->disablePtr = e->disablePtr;
390}