1 /*
2 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Copyright © 2003 Keith Packard
24 *
25 * Permission to use, copy, modify, distribute, and sell this software and its
26 * documentation for any purpose is hereby granted without fee, provided that
27 * the above copyright notice appear in all copies and that both that
28 * copyright notice and this permission notice appear in supporting
29 * documentation, and that the name of Keith Packard not be used in
30 * advertising or publicity pertaining to distribution of the software without
31 * specific, written prior permission. Keith Packard makes no
32 * representations about the suitability of this software for any purpose. It
33 * is provided "as is" without express or implied warranty.
34 *
35 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
36 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
37 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
38 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
39 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
40 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
41 * PERFORMANCE OF THIS SOFTWARE.
42 */
43
44 #ifdef HAVE_DIX_CONFIG_H
45 #include <dix-config.h>
46 #endif
47
48 #include "compint.h"
49 #include "xace.h"
50
51 #ifdef PANORAMIX
52 #include "panoramiXsrv.h"
53 #endif
54
55 /*
56 * Delete the given overlay client list element from its screen list.
57 */
58 void
compFreeOverlayClient(CompOverlayClientPtr pOcToDel)59 compFreeOverlayClient(CompOverlayClientPtr pOcToDel)
60 {
61 ScreenPtr pScreen = pOcToDel->pScreen;
62 CompScreenPtr cs = GetCompScreen(pScreen);
63 CompOverlayClientPtr *pPrev, pOc;
64
65 for (pPrev = &cs->pOverlayClients; (pOc = *pPrev); pPrev = &pOc->pNext) {
66 if (pOc == pOcToDel) {
67 *pPrev = pOc->pNext;
68 free(pOc);
69 break;
70 }
71 }
72
73 /* Destroy overlay window when there are no more clients using it */
74 if (cs->pOverlayClients == NULL)
75 compDestroyOverlayWindow(pScreen);
76 }
77
78 /*
79 * Return the client's first overlay client rec from the given screen
80 */
81 CompOverlayClientPtr
compFindOverlayClient(ScreenPtr pScreen,ClientPtr pClient)82 compFindOverlayClient(ScreenPtr pScreen, ClientPtr pClient)
83 {
84 CompScreenPtr cs = GetCompScreen(pScreen);
85 CompOverlayClientPtr pOc;
86
87 for (pOc = cs->pOverlayClients; pOc != NULL; pOc = pOc->pNext)
88 if (pOc->pClient == pClient)
89 return pOc;
90
91 return NULL;
92 }
93
94 /*
95 * Create an overlay client object for the given client
96 */
97 CompOverlayClientPtr
compCreateOverlayClient(ScreenPtr pScreen,ClientPtr pClient)98 compCreateOverlayClient(ScreenPtr pScreen, ClientPtr pClient)
99 {
100 CompScreenPtr cs = GetCompScreen(pScreen);
101 CompOverlayClientPtr pOc;
102
103 pOc = (CompOverlayClientPtr) malloc(sizeof(CompOverlayClientRec));
104 if (pOc == NULL)
105 return NULL;
106
107 pOc->pClient = pClient;
108 pOc->pScreen = pScreen;
109 pOc->resource = FakeClientID(pClient->index);
110 pOc->pNext = cs->pOverlayClients;
111 cs->pOverlayClients = pOc;
112
113 /*
114 * Create a resource for this element so it can be deleted
115 * when the client goes away.
116 */
117 if (!AddResource(pOc->resource, CompositeClientOverlayType, (void *) pOc))
118 return NULL;
119
120 return pOc;
121 }
122
123 /*
124 * Create the overlay window and map it
125 */
126 Bool
compCreateOverlayWindow(ScreenPtr pScreen)127 compCreateOverlayWindow(ScreenPtr pScreen)
128 {
129 CompScreenPtr cs = GetCompScreen(pScreen);
130 WindowPtr pRoot = pScreen->root;
131 WindowPtr pWin;
132 XID attrs[] = { None, TRUE }; /* backPixmap, overrideRedirect */
133 int result;
134 int w = pScreen->width;
135 int h = pScreen->height;
136 int x = 0, y = 0;
137
138 #ifdef PANORAMIX
139 if (!noPanoramiXExtension) {
140 x = -pScreen->x;
141 y = -pScreen->y;
142 w = PanoramiXPixWidth;
143 h = PanoramiXPixHeight;
144 }
145 #endif
146
147 pWin = cs->pOverlayWin =
148 CreateWindow(cs->overlayWid, pRoot, x, y, w, h, 0,
149 InputOutput, CWBackPixmap | CWOverrideRedirect, &attrs[0],
150 pRoot->drawable.depth,
151 serverClient, pScreen->rootVisual, &result);
152 if (pWin == NULL)
153 return FALSE;
154
155 if (!AddResource(pWin->drawable.id, RT_WINDOW, (void *) pWin))
156 return FALSE;
157
158 MapWindow(pWin, serverClient);
159
160 return TRUE;
161 }
162
163 /*
164 * Destroy the overlay window
165 */
166 void
compDestroyOverlayWindow(ScreenPtr pScreen)167 compDestroyOverlayWindow(ScreenPtr pScreen)
168 {
169 CompScreenPtr cs = GetCompScreen(pScreen);
170
171 cs->pOverlayWin = NullWindow;
172 FreeResource(cs->overlayWid, RT_NONE);
173 }
174