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
|
/**************************************************************************/
/* */
/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */
/* Copyright (c) 2008-2017 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */
/* Copyright (c) 2011-2022 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
/* Copyright (c) 2014-2019 Mihai Moldovan <ionic@ionic.de> */
/* Copyright (c) 2014-2022 Ulrich Sibiller <uli42@gmx.de> */
/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */
/* */
/* NXAGENT, NX protocol compression and NX extensions to this software */
/* are copyright of the aforementioned persons and companies. */
/* */
/* Redistribution and use of the present software is allowed according */
/* to terms specified in the file LICENSE which comes in the source */
/* distribution. */
/* */
/* All rights reserved. */
/* */
/* NOTE: This software has received contributions from various other */
/* contributors, only the core maintainers and supporters are listed as */
/* copyright holders. Please contact us, if you feel you should be listed */
/* as copyright holder, as well. */
/* */
/**************************************************************************/
#include "scrnintstr.h"
#include "windowstr.h"
#include "Agent.h"
#include "Screen.h"
#include "Display.h"
#include "Options.h"
#include "Windows.h"
#include "X11/include/Xcomposite_nxagent.h"
/*
* Set here the required log level.
*/
#define PANIC
#define WARNING
#undef TEST
#undef DEBUG
/*
* Set if the composite extension is supported by the remote display.
*/
Bool nxagentCompositeEnable = False;
void nxagentCompositeExtensionInit(void)
{
/*
* Set the flag only if the initialization completes.
*/
nxagentCompositeEnable = False;
if (nxagentOption(Composite))
{
int eventBase, errorBase;
#ifdef TEST
fprintf(stderr, "nxagentCompositeExtensionInit: Checking if the composite extension is supported.\n");
#endif
if (XCompositeQueryExtension(nxagentDisplay, &eventBase, &errorBase) == 1)
{
/*
* At the moment we don't need to care the version of the
* extension.
*/
#ifdef TEST
int major = -1;
int minor = -1;
XCompositeQueryVersion(nxagentDisplay, &major, &minor);
fprintf(stderr, "nxagentCompositeExtensionInit: The remote display supports version [%d] "
"minor [%d].\n", major, minor);
if (major < 0 || minor < 2)
{
#ifdef WARNING
fprintf(stderr, "nxagentCompositeExtensionInit: WARNING! Potentially incompatible version "
"[%d] minor [%d] detected.\n", major, minor);
#endif
}
#endif
#ifdef TEST
fprintf(stderr, "nxagentCompositeExtensionInit: Enabling the use of the composite extension.\n");
#endif
nxagentCompositeEnable = True;
}
#ifdef TEST
else
{
fprintf(stderr, "nxagentCompositeExtensionInit: Composite extension not supported on this display.\n");
}
#endif
}
#ifdef TEST
else
{
fprintf(stderr, "nxagentCompositeExtensionInit: Use of the composite extension not enabled.\n");
}
#endif
}
void nxagentRedirectDefaultWindows(void)
{
if (nxagentOption(Rootless) || !nxagentCompositeEnable)
{
#ifdef TEST
fprintf(stderr, "nxagentRedirectDefaultWindows: Not redirecting default "
"windows with rootless mode [%d] and composite [%d].\n",
nxagentOption(Rootless), nxagentCompositeEnable);
#endif
return;
}
for (int i = 0; i < screenInfo.numScreens; i++)
{
WindowPtr pWin = screenInfo.screens[i]->root;
ScreenPtr pScreen = pWin -> drawable.pScreen;
#ifdef TEST
fprintf(stderr, "nxagentRedirectDefaultWindows: WARNING! Redirecting default window id [%ld] "
"to off-screen memory.\n", (long int)nxagentDefaultWindows[pScreen->myNum]);
#endif
/*
* When trying to redirect only the top level window, and not the
* subwindows, we incur in a strange behaviour. The top level is
* unmapped, mapped, unmapped and then reparented. This at first
* makes the agent think that the window manager is gone, then the
* agent window disappears. To make things even more weird, this
* happens only at reconnection.
*/
XCompositeRedirectSubwindows(nxagentDisplay, nxagentDefaultWindows[pScreen->myNum],
CompositeRedirectAutomatic);
}
}
void nxagentRedirectWindow(WindowPtr pWin)
{
if (!nxagentOption(Rootless) || !nxagentCompositeEnable)
{
#ifdef TEST
fprintf(stderr, "nxagentRedirectWindow: Not redirecting window id [%ld] "
"to off-screen memory with rootless mode [%d] and composite [%d].\n",
nxagentWindow(pWin), nxagentOption(Rootless),
nxagentCompositeEnable);
#endif
return;
}
#ifdef TEST
fprintf(stderr, "nxagentRedirectWindow: WARNING! Redirecting window id [%ld] "
"to off-screen memory.\n", (long int)nxagentWindow(pWin));
#endif
XCompositeRedirectWindow(nxagentDisplay, nxagentWindow(pWin),
CompositeRedirectAutomatic);
nxagentWindowPriv(pWin) -> isRedirected = 1;
}
void nxagentUnredirectWindow(WindowPtr pWin)
{
if (nxagentWindowPriv(pWin) -> isRedirected == 1)
{
#ifdef TEST
fprintf(stderr, "nxagentUnredirectWindow: Disabling redirection of window id [%ld] "
"to off-screen memory.\n", nxagentWindow(pWin));
#endif
XCompositeUnredirectWindow(nxagentDisplay, nxagentWindow(pWin),
CompositeRedirectAutomatic);
nxagentWindowPriv(pWin) -> isRedirected = 0;
}
#ifdef WARNING
else
{
fprintf(stderr, "nxagentUnredirectWindow: WARNING! The window id [%ld] "
"was not redirected.\n", (long int)nxagentWindow(pWin));
}
#endif
}
|
