aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/composite/compoverlay.c
blob: 20c860d5f65267d505619cbdf6c27d8dee3d3fc5 (plain)
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
/*
 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
 *
 * Copyright © 2003 Keith Packard
 *
 * 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, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include "compint.h"
#include "xace.h"

#ifdef PANORAMIX
#include "panoramiXsrv.h"
#endif

/*
 * Delete the given overlay client list element from its screen list.
 */
void
compFreeOverlayClient(CompOverlayClientPtr pOcToDel)
{
    ScreenPtr pScreen = pOcToDel->pScreen;
    CompScreenPtr cs = GetCompScreen(pScreen);
    CompOverlayClientPtr *pPrev, pOc;

    for (pPrev = &cs->pOverlayClients; (pOc = *pPrev); pPrev = &pOc->pNext) {
        if (pOc == pOcToDel) {
            *pPrev = pOc->pNext;
            free(pOc);
            break;
        }
    }

    /* Destroy overlay window when there are no more clients using it */
    if (cs->pOverlayClients == NULL)
        compDestroyOverlayWindow(pScreen);
}

/*
 * Return the client's first overlay client rec from the given screen
 */
CompOverlayClientPtr
compFindOverlayClient(ScreenPtr pScreen, ClientPtr pClient)
{
    CompScreenPtr cs = GetCompScreen(pScreen);
    CompOverlayClientPtr pOc;

    for (pOc = cs->pOverlayClients; pOc != NULL; pOc = pOc->pNext)
        if (pOc->pClient == pClient)
            return pOc;

    return NULL;
}

/*
 * Create an overlay client object for the given client
 */
CompOverlayClientPtr
compCreateOverlayClient(ScreenPtr pScreen, ClientPtr pClient)
{
    CompScreenPtr cs = GetCompScreen(pScreen);
    CompOverlayClientPtr pOc;

    pOc = (CompOverlayClientPtr) malloc(sizeof(CompOverlayClientRec));
    if (pOc == NULL)
        return NULL;

    pOc->pClient = pClient;
    pOc->pScreen = pScreen;
    pOc->resource = FakeClientID(pClient->index);
    pOc->pNext = cs->pOverlayClients;
    cs->pOverlayClients = pOc;

    /*
     * Create a resource for this element so it can be deleted
     * when the client goes away.
     */
    if (!AddResource(pOc->resource, CompositeClientOverlayType, (void *) pOc))
        return NULL;

    return pOc;
}

/*
 * Create the overlay window and map it
 */
Bool
compCreateOverlayWindow(ScreenPtr pScreen)
{
    CompScreenPtr cs = GetCompScreen(pScreen);
    WindowPtr pRoot = pScreen->root;
    WindowPtr pWin;
    XID attrs[] = { None, TRUE };       /* backPixmap, overrideRedirect */
    int result;
    int w = pScreen->width;
    int h = pScreen->height;
    int x = 0, y = 0;

#ifdef PANORAMIX
    if (!noPanoramiXExtension) {
        x = -pScreen->x;
        y = -pScreen->y;
        w = PanoramiXPixWidth;
        h = PanoramiXPixHeight;
    }
#endif

    pWin = cs->pOverlayWin =
        CreateWindow(cs->overlayWid, pRoot, x, y, w, h, 0,
                     InputOutput, CWBackPixmap | CWOverrideRedirect, &attrs[0],
                     pRoot->drawable.depth,
                     serverClient, pScreen->rootVisual, &result);
    if (pWin == NULL)
        return FALSE;

    if (!AddResource(pWin->drawable.id, RT_WINDOW, (void *) pWin))
        return FALSE;

    MapWindow(pWin, serverClient);

    return TRUE;
}

/*
 * Destroy the overlay window
 */
void
compDestroyOverlayWindow(ScreenPtr pScreen)
{
    CompScreenPtr cs = GetCompScreen(pScreen);

    cs->pOverlayWin = NullWindow;
    FreeResource(cs->overlayWid, RT_NONE);
}