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
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/*
* Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
*
* 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 on 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
* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
* 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.
*/
/*
* Author:
* Rickard E. (Rik) Faith <faith@redhat.com>
*
*/
/** \file
* Provides DPMS support and unifies all DPMS and other screen-saver
* support in one file. If -dpms is given on the command line, or the
* Xdmx server is not compiled with DPMS support, then the DPMS extension
* does not work for clients, but DPMS on the backends is still disables
* (and restored at Xdmx server shutdown time).
*/
#ifdef HAVE_DMX_CONFIG_H
#include <dmx-config.h>
#endif
#include "dmx.h"
#include "dmxdpms.h"
#include "dmxlog.h"
#include "dmxsync.h"
#ifdef DPMSExtension
#include "dpmsproc.h"
#endif
#include "windowstr.h" /* For screenIsSaved */
#include <X11/extensions/dpms.h>
static unsigned long dpmsGeneration = 0;
static Bool dpmsSupported = TRUE;
static void _dmxDPMSInit(DMXScreenInfo *dmxScreen)
{
int event_base, error_base;
int major, minor;
CARD16 level, standby, suspend, off;
BOOL state;
const char *monitor;
if (dpmsGeneration != serverGeneration) {
dpmsSupported = TRUE; /* On unless a backend doesn't support it */
dpmsGeneration = serverGeneration;
}
#ifdef DPMSExtension
if (DPMSDisabledSwitch) dpmsSupported = FALSE; /* -dpms turns off */
#endif
dmxScreen->dpmsCapable = 0;
if (!dmxScreen->beDisplay) {
dmxLogOutput(dmxScreen,
"Cannot determine if DPMS supported (detached screen)\n");
dpmsSupported = FALSE;
return;
}
if (!DPMSQueryExtension(dmxScreen->beDisplay,
&event_base, &error_base)) {
dmxLogOutput(dmxScreen, "DPMS not supported\n");
dpmsSupported = FALSE;
return;
}
if (!DPMSGetVersion(dmxScreen->beDisplay, &major, &minor)) {
dmxLogOutput(dmxScreen, "DPMS not supported\n");
dpmsSupported = FALSE;
return;
}
if (!DPMSCapable(dmxScreen->beDisplay)) {
dmxLogOutput(dmxScreen, "DPMS %d.%d (not DPMS capable)\n",
major, minor);
dpmsSupported = FALSE;
return;
}
DPMSInfo(dmxScreen->beDisplay, &level, &state);
DPMSGetTimeouts(dmxScreen->beDisplay, &standby, &suspend, &off);
DPMSSetTimeouts(dmxScreen->beDisplay, 0, 0, 0);
DPMSEnable(dmxScreen->beDisplay);
DPMSForceLevel(dmxScreen->beDisplay, DPMSModeOn);
dmxScreen->dpmsCapable = 1;
dmxScreen->dpmsEnabled = !!state;
dmxScreen->dpmsStandby = standby;
dmxScreen->dpmsSuspend = suspend;
dmxScreen->dpmsOff = off;
switch (level) {
case DPMSModeOn: monitor = "on"; break;
case DPMSModeStandby: monitor = "standby"; break;
case DPMSModeSuspend: monitor = "suspend"; break;
case DPMSModeOff: monitor = "off"; break;
default: monitor = "unknown"; break;
}
dmxLogOutput(dmxScreen,
"DPMS %d.%d (%s, %s, %d %d %d)\n",
major, minor, monitor, state ? "enabled" : "disabled",
standby, suspend, off);
}
/** Initialize DPMS support. We save the current settings and turn off
* DPMS. The settings are restored in #dmxDPMSTerm. */
void dmxDPMSInit(DMXScreenInfo *dmxScreen)
{
int interval, preferBlanking, allowExposures;
/* Turn off DPMS */
_dmxDPMSInit(dmxScreen);
if (!dmxScreen->beDisplay)
return;
/* Turn off screen saver */
XGetScreenSaver(dmxScreen->beDisplay, &dmxScreen->savedTimeout, &interval,
&preferBlanking, &allowExposures);
XSetScreenSaver(dmxScreen->beDisplay, 0, interval,
preferBlanking, allowExposures);
XResetScreenSaver(dmxScreen->beDisplay);
dmxSync(dmxScreen, FALSE);
}
/** Terminate DPMS support on \a dmxScreen. We restore the settings
* saved in #dmxDPMSInit. */
void dmxDPMSTerm(DMXScreenInfo *dmxScreen)
{
int timeout, interval, preferBlanking, allowExposures;
if (!dmxScreen->beDisplay)
return;
XGetScreenSaver(dmxScreen->beDisplay, &timeout, &interval,
&preferBlanking, &allowExposures);
XSetScreenSaver(dmxScreen->beDisplay, dmxScreen->savedTimeout, interval,
preferBlanking, allowExposures);
if (dmxScreen->dpmsCapable) {
/* Restore saved state */
DPMSForceLevel(dmxScreen->beDisplay, DPMSModeOn);
DPMSSetTimeouts(dmxScreen->beDisplay, dmxScreen->dpmsStandby,
dmxScreen->dpmsSuspend, dmxScreen->dpmsOff);
if (dmxScreen->dpmsEnabled) DPMSEnable(dmxScreen->beDisplay);
else DPMSDisable(dmxScreen->beDisplay);
}
dmxSync(dmxScreen, FALSE);
}
/** Called when activity is detected so that DPMS power-saving mode can
* be deactivated. */
void dmxDPMSWakeup(void)
{
if (screenIsSaved == SCREEN_SAVER_ON)
SaveScreens(serverClient, SCREEN_SAVER_OFF, ScreenSaverReset);
#ifdef DPMSExtension
if (DPMSPowerLevel) DPMSSet(serverClient, 0);
#endif
}
#ifdef DPMSExtension
/** This is called on each server generation. It should determine if
* DPMS is supported on all of the backends and, if so, return TRUE. */
Bool DPMSSupported(void)
{
return dpmsSupported;
}
/** This is used by clients (e.g., xset) to set the DPMS level. */
int DPMSSet(ClientPtr client, int level)
{
int i;
if (!dpmsSupported) return Success;
if (level < 0) level = DPMSModeOn;
if (level > 3) level = DPMSModeOff;
DPMSPowerLevel = level;
for (i = 0; i < dmxNumScreens; i++) {
DMXScreenInfo *dmxScreen = &dmxScreens[i];
if (dmxScreen->beDisplay) {
DPMSForceLevel(dmxScreen->beDisplay, level);
dmxSync(dmxScreen, FALSE);
}
}
return Success;
}
#endif
|
