XGetFCtl.c revision c27c18e8 
1/************************************************************
2
3Copyright 1989, 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 1989 by Hewlett-Packard Company, Palo Alto, California.
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 Hewlett-Packard not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39HEWLETT-PACKARD 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 *
49 * XGetFeedbackControl - get the feedback attributes of an extension device.
50 *
51 */
52
53#include <X11/extensions/XI.h>
54#include <X11/extensions/XIproto.h>
55#include <X11/Xlibint.h>
56#include <X11/Xlib.h>
57#include <X11/extensions/XInput.h>
58#include <X11/extensions/extutil.h>
59#include "XIint.h"
60
61XFeedbackState *
62XGetFeedbackControl(
63    register Display	*dpy,
64    XDevice		*dev,
65    int			*num_feedbacks)
66{
67    int size = 0;
68    int nbytes, i;
69    XFeedbackState *Feedback = NULL;
70    XFeedbackState *Sav = NULL;
71    xFeedbackState *f = NULL;
72    xFeedbackState *sav = NULL;
73    xGetFeedbackControlReq *req;
74    xGetFeedbackControlReply rep;
75    XExtDisplayInfo *info = XInput_find_display(dpy);
76
77    LockDisplay(dpy);
78    if (_XiCheckExtInit(dpy, XInput_Initial_Release, info) == -1)
79	return ((XFeedbackState *) NoSuchExtension);
80
81    GetReq(GetFeedbackControl, req);
82    req->reqType = info->codes->major_opcode;
83    req->ReqType = X_GetFeedbackControl;
84    req->deviceid = dev->device_id;
85
86    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
87	UnlockDisplay(dpy);
88	SyncHandle();
89	return (XFeedbackState *) NULL;
90    }
91    if (rep.length > 0) {
92	*num_feedbacks = rep.num_feedbacks;
93	nbytes = (long)rep.length << 2;
94	f = (xFeedbackState *) Xmalloc((unsigned)nbytes);
95	if (!f) {
96	    _XEatData(dpy, (unsigned long)nbytes);
97	    UnlockDisplay(dpy);
98	    SyncHandle();
99	    return (XFeedbackState *) NULL;
100	}
101	sav = f;
102	_XRead(dpy, (char *)f, nbytes);
103
104	for (i = 0; i < *num_feedbacks; i++) {
105	    switch (f->class) {
106	    case KbdFeedbackClass:
107		size += sizeof(XKbdFeedbackState);
108		break;
109	    case PtrFeedbackClass:
110		size += sizeof(XPtrFeedbackState);
111		break;
112	    case IntegerFeedbackClass:
113		size += sizeof(XIntegerFeedbackState);
114		break;
115	    case StringFeedbackClass:
116	    {
117		xStringFeedbackState *strf = (xStringFeedbackState *) f;
118
119		size += sizeof(XStringFeedbackState) +
120		    (strf->num_syms_supported * sizeof(KeySym));
121	    }
122		break;
123	    case LedFeedbackClass:
124		size += sizeof(XLedFeedbackState);
125		break;
126	    case BellFeedbackClass:
127		size += sizeof(XBellFeedbackState);
128		break;
129	    default:
130		size += f->length;
131		break;
132	    }
133	    f = (xFeedbackState *) ((char *)f + f->length);
134	}
135
136	Feedback = (XFeedbackState *) Xmalloc((unsigned)size);
137	if (!Feedback) {
138	    UnlockDisplay(dpy);
139	    SyncHandle();
140	    return (XFeedbackState *) NULL;
141	}
142	Sav = Feedback;
143
144	f = sav;
145	for (i = 0; i < *num_feedbacks; i++) {
146	    switch (f->class) {
147	    case KbdFeedbackClass:
148	    {
149		xKbdFeedbackState *k;
150		XKbdFeedbackState *K;
151
152		k = (xKbdFeedbackState *) f;
153		K = (XKbdFeedbackState *) Feedback;
154
155		K->class = k->class;
156		K->length = sizeof(XKbdFeedbackState);
157		K->id = k->id;
158		K->click = k->click;
159		K->percent = k->percent;
160		K->pitch = k->pitch;
161		K->duration = k->duration;
162		K->led_mask = k->led_mask;
163		K->global_auto_repeat = k->global_auto_repeat;
164		memcpy((char *)&K->auto_repeats[0],
165		       (char *)&k->auto_repeats[0], 32);
166		break;
167	    }
168	    case PtrFeedbackClass:
169	    {
170		xPtrFeedbackState *p;
171		XPtrFeedbackState *P;
172
173		p = (xPtrFeedbackState *) f;
174		P = (XPtrFeedbackState *) Feedback;
175
176		P->class = p->class;
177		P->length = sizeof(XPtrFeedbackState);
178		P->id = p->id;
179		P->accelNum = p->accelNum;
180		P->accelDenom = p->accelDenom;
181		P->threshold = p->threshold;
182		break;
183	    }
184	    case IntegerFeedbackClass:
185	    {
186		xIntegerFeedbackState *i;
187		XIntegerFeedbackState *I;
188
189		i = (xIntegerFeedbackState *) f;
190		I = (XIntegerFeedbackState *) Feedback;
191
192		I->class = i->class;
193		I->length = sizeof(XIntegerFeedbackState);
194		I->id = i->id;
195		I->resolution = i->resolution;
196		I->minVal = i->min_value;
197		I->maxVal = i->max_value;
198		break;
199	    }
200	    case StringFeedbackClass:
201	    {
202		xStringFeedbackState *s;
203		XStringFeedbackState *S;
204
205		s = (xStringFeedbackState *) f;
206		S = (XStringFeedbackState *) Feedback;
207
208		S->class = s->class;
209		S->length = sizeof(XStringFeedbackState) +
210		    (s->num_syms_supported * sizeof(KeySym));
211		S->id = s->id;
212		S->max_symbols = s->max_symbols;
213		S->num_syms_supported = s->num_syms_supported;
214		S->syms_supported = (KeySym *) (S + 1);
215		memcpy((char *)S->syms_supported, (char *)(s + 1),
216		       (S->num_syms_supported * sizeof(KeySym)));
217		break;
218	    }
219	    case LedFeedbackClass:
220	    {
221		xLedFeedbackState *l;
222		XLedFeedbackState *L;
223
224		l = (xLedFeedbackState *) f;
225		L = (XLedFeedbackState *) Feedback;
226
227		L->class = l->class;
228		L->length = sizeof(XLedFeedbackState);
229		L->id = l->id;
230		L->led_values = l->led_values;
231		L->led_mask = l->led_mask;
232		break;
233	    }
234	    case BellFeedbackClass:
235	    {
236		xBellFeedbackState *b;
237		XBellFeedbackState *B;
238
239		b = (xBellFeedbackState *) f;
240		B = (XBellFeedbackState *) Feedback;
241
242		B->class = b->class;
243		B->length = sizeof(XBellFeedbackState);
244		B->id = b->id;
245		B->percent = b->percent;
246		B->pitch = b->pitch;
247		B->duration = b->duration;
248		break;
249	    }
250	    default:
251		break;
252	    }
253	    f = (xFeedbackState *) ((char *)f + f->length);
254	    Feedback = (XFeedbackState *) ((char *)Feedback + Feedback->length);
255	}
256	XFree((char *)sav);
257    }
258
259    UnlockDisplay(dpy);
260    SyncHandle();
261    return (Sav);
262}
263
264void
265XFreeFeedbackList(XFeedbackState *list)
266{
267    XFree((char *)list);
268}
269