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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/* -- xrandr.c -- */
#include "x11vnc.h"
#include "cleanup.h"
#include "connections.h"
#include "remote.h"
#include "screen.h"
#include "win_utils.h"
time_t last_subwin_trap = 0;
int subwin_trap_count = 0;
XErrorHandler old_getimage_handler;
int xrandr_present = 0;
int xrandr_width = -1;
int xrandr_height = -1;
int xrandr_rotation = -1;
Time xrandr_timestamp = 0;
Time xrandr_cfg_time = 0;
void initialize_xrandr(void);
int check_xrandr_event(char *msg);
int known_xrandr_mode(char *s);
static int handle_subwin_resize(char *msg);
static void handle_xrandr_change(int new_x, int new_y);
void initialize_xrandr(void) {
if (xrandr_present && dpy) {
#if LIBVNCSERVER_HAVE_LIBXRANDR
Rotation rot;
X_LOCK;
xrandr_width = XDisplayWidth(dpy, scr);
xrandr_height = XDisplayHeight(dpy, scr);
XRRRotations(dpy, scr, &rot);
xrandr_rotation = (int) rot;
if (xrandr) {
XRRSelectInput(dpy, rootwin, RRScreenChangeNotifyMask);
} else {
XRRSelectInput(dpy, rootwin, 0);
}
X_UNLOCK;
#endif
} else if (xrandr) {
rfbLog("-xrandr mode specified, but no RANDR support on\n");
rfbLog(" display or in client library. Disabling -xrandr "
"mode.\n");
xrandr = 0;
}
}
static int handle_subwin_resize(char *msg) {
int new_x, new_y;
int i, check = 10, ms = 250; /* 2.5 secs total... */
if (msg) {} /* unused vars warning: */
if (! subwin) {
return 0; /* hmmm... */
}
if (! valid_window(subwin, NULL, 0)) {
rfbLogEnable(1);
rfbLog("subwin 0x%lx went away!\n", subwin);
X_UNLOCK;
clean_up_exit(1);
}
if (! get_window_size(subwin, &new_x, &new_y)) {
rfbLogEnable(1);
rfbLog("could not get size of subwin 0x%lx\n", subwin);
X_UNLOCK;
clean_up_exit(1);
}
if (wdpy_x == new_x && wdpy_y == new_y) {
/* no change */
return 0;
}
/* window may still be changing (e.g. drag resize) */
for (i=0; i < check; i++) {
int newer_x, newer_y;
usleep(ms * 1000);
if (! get_window_size(subwin, &newer_x, &newer_y)) {
rfbLogEnable(1);
rfbLog("could not get size of subwin 0x%lx\n", subwin);
clean_up_exit(1);
}
if (new_x == newer_x && new_y == newer_y) {
/* go for it... */
break;
} else {
rfbLog("subwin 0x%lx still changing size...\n", subwin);
new_x = newer_x;
new_y = newer_y;
}
}
rfbLog("subwin 0x%lx new size: x: %d -> %d, y: %d -> %d\n",
subwin, wdpy_x, new_x, wdpy_y, new_y);
rfbLog("calling handle_xrandr_change() for resizing\n");
X_UNLOCK;
handle_xrandr_change(new_x, new_y);
return 1;
}
static void handle_xrandr_change(int new_x, int new_y) {
rfbClientIteratorPtr iter;
rfbClientPtr cl;
RAWFB_RET_VOID
/* sanity check xrandr_mode */
if (! xrandr_mode) {
xrandr_mode = strdup("default");
} else if (! known_xrandr_mode(xrandr_mode)) {
free(xrandr_mode);
xrandr_mode = strdup("default");
}
rfbLog("xrandr_mode: %s\n", xrandr_mode);
if (!strcmp(xrandr_mode, "exit")) {
close_all_clients();
rfbLog(" shutting down due to XRANDR event.\n");
clean_up_exit(0);
}
if (!strcmp(xrandr_mode, "newfbsize") && screen) {
iter = rfbGetClientIterator(screen);
while( (cl = rfbClientIteratorNext(iter)) ) {
if (cl->useNewFBSize) {
continue;
}
rfbLog(" closing client %s (no useNewFBSize"
" support).\n", cl->host);
rfbCloseClient(cl);
rfbClientConnectionGone(cl);
}
rfbReleaseClientIterator(iter);
}
/* default, resize, and newfbsize create a new fb: */
rfbLog("check_xrandr_event: trying to create new framebuffer...\n");
if (new_x < wdpy_x || new_y < wdpy_y) {
check_black_fb();
}
do_new_fb(1);
rfbLog("check_xrandr_event: fb WxH: %dx%d\n", wdpy_x, wdpy_y);
}
int check_xrandr_event(char *msg) {
XEvent xev;
RAWFB_RET(0)
if (subwin) {
return handle_subwin_resize(msg);
}
#if LIBVNCSERVER_HAVE_LIBXRANDR
if (! xrandr || ! xrandr_present) {
return 0;
}
if (xrandr_base_event_type && XCheckTypedEvent(dpy,
xrandr_base_event_type + RRScreenChangeNotify, &xev)) {
int do_change;
XRRScreenChangeNotifyEvent *rev;
rev = (XRRScreenChangeNotifyEvent *) &xev;
rfbLog("check_xrandr_event():\n");
rfbLog("Detected XRANDR event at location '%s':\n", msg);
rfbLog(" serial: %d\n", (int) rev->serial);
rfbLog(" timestamp: %d\n", (int) rev->timestamp);
rfbLog(" cfg_timestamp: %d\n", (int) rev->config_timestamp);
rfbLog(" size_id: %d\n", (int) rev->size_index);
rfbLog(" sub_pixel: %d\n", (int) rev->subpixel_order);
rfbLog(" rotation: %d\n", (int) rev->rotation);
rfbLog(" width: %d\n", (int) rev->width);
rfbLog(" height: %d\n", (int) rev->height);
rfbLog(" mwidth: %d mm\n", (int) rev->mwidth);
rfbLog(" mheight: %d mm\n", (int) rev->mheight);
rfbLog("\n");
rfbLog("check_xrandr_event: previous WxH: %dx%d\n",
wdpy_x, wdpy_y);
if (wdpy_x == rev->width && wdpy_y == rev->height &&
xrandr_rotation == (int) rev->rotation) {
rfbLog("check_xrandr_event: no change detected.\n");
do_change = 0;
} else {
do_change = 1;
}
xrandr_width = rev->width;
xrandr_height = rev->height;
xrandr_timestamp = rev->timestamp;
xrandr_cfg_time = rev->config_timestamp;
xrandr_rotation = (int) rev->rotation;
rfbLog("check_xrandr_event: updating config...\n");
XRRUpdateConfiguration(&xev);
if (do_change) {
X_UNLOCK;
handle_xrandr_change(rev->width, rev->height);
}
rfbLog("check_xrandr_event: current WxH: %dx%d\n",
XDisplayWidth(dpy, scr), XDisplayHeight(dpy, scr));
rfbLog("check_xrandr_event(): returning control to"
" caller...\n");
return do_change;
}
#endif
return 0;
}
int known_xrandr_mode(char *s) {
/*
* default:
* resize: the default
* exit: shutdown clients and exit.
* newfbsize: shutdown clients that do not support NewFBSize encoding.
*/
if (strcmp(s, "default") && strcmp(s, "resize") &&
strcmp(s, "exit") && strcmp(s, "newfbsize")) {
return 0;
} else {
return 1;
}
}
|
