San Mehat | a430b2b | 2014-09-23 08:30:51 -0700 | [diff] [blame] | 1 | /* |
| 2 | Copyright (C) 2002-2010 Karl J. Runge <runge@karlrunge.com> |
| 3 | All rights reserved. |
| 4 | |
| 5 | This file is part of x11vnc. |
| 6 | |
| 7 | x11vnc is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or (at |
| 10 | your option) any later version. |
| 11 | |
| 12 | x11vnc is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with x11vnc; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA |
| 20 | or see <http://www.gnu.org/licenses/>. |
| 21 | |
| 22 | In addition, as a special exception, Karl J. Runge |
| 23 | gives permission to link the code of its release of x11vnc with the |
| 24 | OpenSSL project's "OpenSSL" library (or with modified versions of it |
| 25 | that use the same license as the "OpenSSL" library), and distribute |
| 26 | the linked executables. You must obey the GNU General Public License |
| 27 | in all respects for all of the code used other than "OpenSSL". If you |
| 28 | modify this file, you may extend this exception to your version of the |
| 29 | file, but you are not obligated to do so. If you do not wish to do |
| 30 | so, delete this exception statement from your version. |
| 31 | */ |
| 32 | |
| 33 | #ifndef _X11VNC_XRANDR_H |
| 34 | #define _X11VNC_XRANDR_H |
| 35 | |
| 36 | /* -- xrandr.h -- */ |
| 37 | |
| 38 | extern time_t last_subwin_trap; |
| 39 | extern int subwin_trap_count; |
| 40 | extern XErrorHandler old_getimage_handler; |
| 41 | |
| 42 | extern int xrandr_present; |
| 43 | extern int xrandr_width; |
| 44 | extern int xrandr_height; |
| 45 | extern int xrandr_rotation; |
| 46 | extern Time xrandr_timestamp; |
| 47 | extern Time xrandr_cfg_time; |
| 48 | |
| 49 | extern void initialize_xrandr(void); |
| 50 | extern int check_xrandr_event(char *msg); |
| 51 | extern int known_xrandr_mode(char *s); |
| 52 | |
| 53 | #define XRANDR_SET_TRAP_RET(x,y) \ |
| 54 | if (subwin || xrandr) { \ |
| 55 | trapped_getimage_xerror = 0; \ |
| 56 | old_getimage_handler = XSetErrorHandler(trap_getimage_xerror); \ |
| 57 | if (check_xrandr_event(y)) { \ |
| 58 | trapped_getimage_xerror = 0; \ |
| 59 | XSetErrorHandler(old_getimage_handler); \ |
| 60 | X_UNLOCK; \ |
| 61 | return(x); \ |
| 62 | } \ |
| 63 | } |
| 64 | #define XRANDR_CHK_TRAP_RET(x,y) \ |
| 65 | if (subwin || xrandr) { \ |
| 66 | if (trapped_getimage_xerror) { \ |
| 67 | if (subwin) { \ |
| 68 | static int last = 0; \ |
| 69 | subwin_trap_count++; \ |
| 70 | if (time(NULL) > last_subwin_trap + 60) { \ |
| 71 | rfbLog("trapped GetImage xerror" \ |
| 72 | " in SUBWIN mode. [%d]\n", \ |
| 73 | subwin_trap_count); \ |
| 74 | last_subwin_trap = time(NULL); \ |
| 75 | last = subwin_trap_count; \ |
| 76 | } \ |
| 77 | if (subwin_trap_count - last > 30) { \ |
| 78 | /* window probably iconified */ \ |
| 79 | usleep(1000*1000); \ |
| 80 | } \ |
| 81 | } else { \ |
| 82 | rfbLog("trapped GetImage xerror" \ |
| 83 | " in XRANDR mode.\n"); \ |
| 84 | } \ |
| 85 | trapped_getimage_xerror = 0; \ |
| 86 | XSetErrorHandler(old_getimage_handler); \ |
| 87 | XFlush_wr(dpy); \ |
| 88 | check_xrandr_event(y); \ |
| 89 | X_UNLOCK; \ |
| 90 | return(x); \ |
| 91 | } \ |
| 92 | } |
| 93 | |
| 94 | #endif /* _X11VNC_XRANDR_H */ |