Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 1 | /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved. |
DRC | 33c15e3 | 2011-11-03 18:49:21 +0000 | [diff] [blame] | 2 | * Copyright (C) 2011 D. R. Commander. All Rights Reserved. |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 3 | * Copyright 2009-2014 Pierre Ossman for Cendio AB |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 4 | * |
| 5 | * This is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This software is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this software; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| 18 | * USA. |
| 19 | */ |
| 20 | |
Peter Åstrand | c359f36 | 2011-08-23 12:04:46 +0000 | [diff] [blame] | 21 | #ifdef HAVE_CONFIG_H |
| 22 | #include <config.h> |
| 23 | #endif |
| 24 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 25 | #include <assert.h> |
DRC | b65bb93 | 2011-06-24 03:17:00 +0000 | [diff] [blame] | 26 | #ifndef _WIN32 |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 27 | #include <unistd.h> |
DRC | b65bb93 | 2011-06-24 03:17:00 +0000 | [diff] [blame] | 28 | #endif |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 29 | |
| 30 | #include <rfb/CMsgWriter.h> |
Pierre Ossman | 0068a4f | 2015-11-09 15:48:19 +0100 | [diff] [blame^] | 31 | #include <rfb/CSecurity.h> |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 32 | #include <rfb/encodings.h> |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 33 | #include <rfb/Decoder.h> |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 34 | #include <rfb/Hostname.h> |
| 35 | #include <rfb/LogWriter.h> |
Pierre Ossman | 0068a4f | 2015-11-09 15:48:19 +0100 | [diff] [blame^] | 36 | #include <rfb/Security.h> |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 37 | #include <rfb/util.h> |
| 38 | #include <rfb/screenTypes.h> |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 39 | #include <rfb/fenceTypes.h> |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 40 | #include <rfb/Timer.h> |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 41 | #include <rdr/MemInStream.h> |
| 42 | #include <rdr/MemOutStream.h> |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 43 | #include <network/TcpSocket.h> |
| 44 | |
| 45 | #include <FL/Fl.H> |
| 46 | #include <FL/fl_ask.H> |
| 47 | |
| 48 | #include "CConn.h" |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 49 | #include "OptionsDialog.h" |
Pierre Ossman | 947b48d | 2014-01-27 16:52:35 +0100 | [diff] [blame] | 50 | #include "DesktopWindow.h" |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 51 | #include "i18n.h" |
| 52 | #include "parameters.h" |
Pierre Ossman | 39ceb50 | 2011-07-12 15:54:25 +0000 | [diff] [blame] | 53 | #include "vncviewer.h" |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 54 | |
DRC | b65bb93 | 2011-06-24 03:17:00 +0000 | [diff] [blame] | 55 | #ifdef WIN32 |
| 56 | #include "win32.h" |
| 57 | #endif |
| 58 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 59 | using namespace rdr; |
| 60 | using namespace rfb; |
| 61 | using namespace std; |
| 62 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 63 | static rfb::LogWriter vlog("CConn"); |
| 64 | |
Pierre Ossman | cf836f2 | 2011-07-14 14:34:09 +0000 | [diff] [blame] | 65 | // 8 colours (1 bit per component) |
| 66 | static const PixelFormat verylowColourPF(8, 3,false, true, |
| 67 | 1, 1, 1, 2, 1, 0); |
| 68 | // 64 colours (2 bits per component) |
| 69 | static const PixelFormat lowColourPF(8, 6, false, true, |
| 70 | 3, 3, 3, 4, 2, 0); |
Pierre Ossman | b6b4dc6 | 2014-01-20 15:05:21 +0100 | [diff] [blame] | 71 | // 256 colours (2-3 bits per component) |
| 72 | static const PixelFormat mediumColourPF(8, 8, false, true, |
| 73 | 7, 7, 3, 5, 2, 0); |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 74 | |
Pierre Ossman | 2a7a8d6 | 2013-02-15 08:33:39 +0000 | [diff] [blame] | 75 | CConn::CConn(const char* vncServerName, network::Socket* socket=NULL) |
| 76 | : serverHost(0), serverPort(0), desktop(NULL), |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 77 | pendingPFChange(false), |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 78 | currentEncoding(encodingTight), lastServerEncoding((unsigned int)-1), |
| 79 | formatChange(false), encodingChange(false), |
Pierre Ossman | aa73c89 | 2011-11-15 12:13:37 +0000 | [diff] [blame] | 80 | firstUpdate(true), pendingUpdate(false), continuousUpdates(false), |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 81 | forceNonincremental(true), supportsSyncFence(false) |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 82 | { |
| 83 | setShared(::shared); |
Pierre Ossman | 2a7a8d6 | 2013-02-15 08:33:39 +0000 | [diff] [blame] | 84 | sock = socket; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 85 | |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 86 | memset(decoders, 0, sizeof(decoders)); |
| 87 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 88 | int encNum = encodingNum(preferredEncoding); |
| 89 | if (encNum != -1) |
| 90 | currentEncoding = encNum; |
| 91 | |
Pierre Ossman | da38956 | 2011-06-09 08:24:37 +0000 | [diff] [blame] | 92 | cp.supportsLocalCursor = true; |
| 93 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 94 | cp.supportsDesktopResize = true; |
| 95 | cp.supportsExtendedDesktopSize = true; |
| 96 | cp.supportsDesktopRename = true; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 97 | |
Pierre Ossman | a22459d | 2014-03-17 14:42:10 +0100 | [diff] [blame] | 98 | if (customCompressLevel) |
| 99 | cp.compressLevel = compressLevel; |
| 100 | else |
| 101 | cp.compressLevel = -1; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 102 | |
Pierre Ossman | a22459d | 2014-03-17 14:42:10 +0100 | [diff] [blame] | 103 | if (!noJpeg) |
| 104 | cp.qualityLevel = qualityLevel; |
| 105 | else |
| 106 | cp.qualityLevel = -1; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 107 | |
Pierre Ossman | 2a7a8d6 | 2013-02-15 08:33:39 +0000 | [diff] [blame] | 108 | if(sock == NULL) { |
| 109 | try { |
| 110 | getHostAndPort(vncServerName, &serverHost, &serverPort); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 111 | |
Pierre Ossman | 2a7a8d6 | 2013-02-15 08:33:39 +0000 | [diff] [blame] | 112 | sock = new network::TcpSocket(serverHost, serverPort); |
| 113 | vlog.info(_("connected to host %s port %d"), serverHost, serverPort); |
| 114 | } catch (rdr::Exception& e) { |
| 115 | vlog.error("%s", e.str()); |
| 116 | fl_alert("%s", e.str()); |
| 117 | exit_vncviewer(); |
| 118 | return; |
| 119 | } |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | Fl::add_fd(sock->getFd(), FL_READ | FL_EXCEPT, socketEvent, this); |
| 123 | |
| 124 | // See callback below |
| 125 | sock->inStream().setBlockCallback(this); |
| 126 | |
| 127 | setServerName(serverHost); |
| 128 | setStreams(&sock->inStream(), &sock->outStream()); |
| 129 | |
| 130 | initialiseProtocol(); |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 131 | |
| 132 | OptionsDialog::addCallback(handleOptions, this); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | CConn::~CConn() |
| 136 | { |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 137 | OptionsDialog::removeCallback(handleOptions); |
Pierre Ossman | d9b9003 | 2015-09-23 12:18:52 +0200 | [diff] [blame] | 138 | Fl::remove_timeout(handleUpdateTimeout, this); |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 139 | |
Pierre Ossman | 5c23b9e | 2015-03-03 16:26:03 +0100 | [diff] [blame] | 140 | for (size_t i = 0; i < sizeof(decoders)/sizeof(decoders[0]); i++) |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 141 | delete decoders[i]; |
| 142 | |
Pierre Ossman | 6a9e2e6 | 2011-05-19 14:47:43 +0000 | [diff] [blame] | 143 | if (desktop) |
| 144 | delete desktop; |
| 145 | |
Pierre Ossman | 5e04c26 | 2011-11-09 11:31:12 +0000 | [diff] [blame] | 146 | delete [] serverHost; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 147 | if (sock) |
| 148 | Fl::remove_fd(sock->getFd()); |
| 149 | delete sock; |
| 150 | } |
| 151 | |
Pierre Ossman | d4c61ce | 2011-04-29 11:18:12 +0000 | [diff] [blame] | 152 | void CConn::refreshFramebuffer() |
| 153 | { |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 154 | forceNonincremental = true; |
| 155 | |
| 156 | // Without fences, we cannot safely trigger an update request directly |
| 157 | // but must wait for the next update to arrive. |
| 158 | if (supportsSyncFence) |
| 159 | requestNewUpdate(); |
Pierre Ossman | d4c61ce | 2011-04-29 11:18:12 +0000 | [diff] [blame] | 160 | } |
| 161 | |
Pierre Ossman | 2eb1d11 | 2011-05-16 12:18:08 +0000 | [diff] [blame] | 162 | const char *CConn::connectionInfo() |
| 163 | { |
| 164 | static char infoText[1024] = ""; |
| 165 | |
Pierre Ossman | b204643 | 2014-09-22 11:17:34 +0200 | [diff] [blame] | 166 | char scratch[100]; |
Pierre Ossman | 2eb1d11 | 2011-05-16 12:18:08 +0000 | [diff] [blame] | 167 | char pfStr[100]; |
Pierre Ossman | b204643 | 2014-09-22 11:17:34 +0200 | [diff] [blame] | 168 | |
| 169 | // Crude way of avoiding constant overflow checks |
| 170 | assert((sizeof(scratch) + 1) * 10 < sizeof(infoText)); |
| 171 | |
| 172 | infoText[0] = '\0'; |
| 173 | |
| 174 | snprintf(scratch, sizeof(scratch), |
| 175 | _("Desktop name: %.80s"), cp.name()); |
| 176 | strcat(infoText, scratch); |
| 177 | strcat(infoText, "\n"); |
| 178 | |
| 179 | snprintf(scratch, sizeof(scratch), |
| 180 | _("Host: %.80s port: %d"), serverHost, serverPort); |
| 181 | strcat(infoText, scratch); |
| 182 | strcat(infoText, "\n"); |
| 183 | |
| 184 | snprintf(scratch, sizeof(scratch), |
| 185 | _("Size: %d x %d"), cp.width, cp.height); |
| 186 | strcat(infoText, scratch); |
| 187 | strcat(infoText, "\n"); |
Pierre Ossman | 2eb1d11 | 2011-05-16 12:18:08 +0000 | [diff] [blame] | 188 | |
Pierre Ossman | 744e55c | 2014-12-03 14:00:54 +0100 | [diff] [blame] | 189 | // TRANSLATORS: Will be filled in with a string describing the |
| 190 | // protocol pixel format in a fairly language neutral way |
Pierre Ossman | 2eb1d11 | 2011-05-16 12:18:08 +0000 | [diff] [blame] | 191 | cp.pf().print(pfStr, 100); |
Pierre Ossman | b204643 | 2014-09-22 11:17:34 +0200 | [diff] [blame] | 192 | snprintf(scratch, sizeof(scratch), |
| 193 | _("Pixel format: %s"), pfStr); |
| 194 | strcat(infoText, scratch); |
| 195 | strcat(infoText, "\n"); |
Pierre Ossman | 2eb1d11 | 2011-05-16 12:18:08 +0000 | [diff] [blame] | 196 | |
Pierre Ossman | 744e55c | 2014-12-03 14:00:54 +0100 | [diff] [blame] | 197 | // TRANSLATORS: Similar to the earlier "Pixel format" string |
Pierre Ossman | b204643 | 2014-09-22 11:17:34 +0200 | [diff] [blame] | 198 | serverPF.print(pfStr, 100); |
| 199 | snprintf(scratch, sizeof(scratch), |
| 200 | _("(server default %s)"), pfStr); |
| 201 | strcat(infoText, scratch); |
| 202 | strcat(infoText, "\n"); |
Pierre Ossman | 2eb1d11 | 2011-05-16 12:18:08 +0000 | [diff] [blame] | 203 | |
Pierre Ossman | b204643 | 2014-09-22 11:17:34 +0200 | [diff] [blame] | 204 | snprintf(scratch, sizeof(scratch), |
| 205 | _("Requested encoding: %s"), encodingName(currentEncoding)); |
| 206 | strcat(infoText, scratch); |
| 207 | strcat(infoText, "\n"); |
| 208 | |
| 209 | snprintf(scratch, sizeof(scratch), |
| 210 | _("Last used encoding: %s"), encodingName(lastServerEncoding)); |
| 211 | strcat(infoText, scratch); |
| 212 | strcat(infoText, "\n"); |
| 213 | |
| 214 | snprintf(scratch, sizeof(scratch), |
| 215 | _("Line speed estimate: %d kbit/s"), sock->inStream().kbitsPerSecond()); |
| 216 | strcat(infoText, scratch); |
| 217 | strcat(infoText, "\n"); |
| 218 | |
| 219 | snprintf(scratch, sizeof(scratch), |
| 220 | _("Protocol version: %d.%d"), cp.majorVersion, cp.minorVersion); |
| 221 | strcat(infoText, scratch); |
| 222 | strcat(infoText, "\n"); |
| 223 | |
| 224 | snprintf(scratch, sizeof(scratch), |
| 225 | _("Security method: %s"), secTypeName(csecurity->getType())); |
| 226 | strcat(infoText, scratch); |
| 227 | strcat(infoText, "\n"); |
Pierre Ossman | 2eb1d11 | 2011-05-16 12:18:08 +0000 | [diff] [blame] | 228 | |
| 229 | return infoText; |
| 230 | } |
| 231 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 232 | // The RFB core is not properly asynchronous, so it calls this callback |
| 233 | // whenever it needs to block to wait for more data. Since FLTK is |
| 234 | // monitoring the socket, we just make sure FLTK gets to run. |
| 235 | |
| 236 | void CConn::blockCallback() |
| 237 | { |
| 238 | int next_timer; |
| 239 | |
| 240 | next_timer = Timer::checkTimeouts(); |
| 241 | if (next_timer == 0) |
| 242 | next_timer = INT_MAX; |
| 243 | |
| 244 | Fl::wait((double)next_timer / 1000.0); |
Pierre Ossman | 1db7324 | 2015-09-23 12:20:32 +0200 | [diff] [blame] | 245 | |
| 246 | if (should_exit()) |
| 247 | throw rdr::Exception("Termination requested"); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 248 | } |
| 249 | |
DRC | 3e7ed81 | 2013-02-26 10:34:22 +0000 | [diff] [blame] | 250 | void CConn::socketEvent(FL_SOCKET fd, void *data) |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 251 | { |
| 252 | CConn *cc; |
| 253 | static bool recursing = false; |
| 254 | |
| 255 | assert(data); |
| 256 | cc = (CConn*)data; |
| 257 | |
| 258 | // I don't think processMsg() is recursion safe, so add this check |
| 259 | if (recursing) |
| 260 | return; |
| 261 | |
| 262 | recursing = true; |
| 263 | |
| 264 | try { |
| 265 | // processMsg() only processes one message, so we need to loop |
| 266 | // until the buffers are empty or things will stall. |
| 267 | do { |
| 268 | cc->processMsg(); |
| 269 | } while (cc->sock->inStream().checkNoWait(1)); |
| 270 | } catch (rdr::EndOfStream& e) { |
Pierre Ossman | ad8609a | 2012-04-26 09:04:14 +0000 | [diff] [blame] | 271 | vlog.info("%s", e.str()); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 272 | exit_vncviewer(); |
| 273 | } catch (rdr::Exception& e) { |
Pierre Ossman | ad8609a | 2012-04-26 09:04:14 +0000 | [diff] [blame] | 274 | vlog.error("%s", e.str()); |
Pierre Ossman | 1db7324 | 2015-09-23 12:20:32 +0200 | [diff] [blame] | 275 | // Somebody might already have requested us to terminate, and |
| 276 | // might have already provided an error message. |
| 277 | if (!should_exit()) |
| 278 | exit_vncviewer(e.str()); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | recursing = false; |
| 282 | } |
| 283 | |
| 284 | ////////////////////// CConnection callback methods ////////////////////// |
| 285 | |
| 286 | // serverInit() is called when the serverInit message has been received. At |
| 287 | // this point we create the desktop window and display it. We also tell the |
| 288 | // server the pixel format and encodings to use and request the first update. |
| 289 | void CConn::serverInit() |
| 290 | { |
| 291 | CConnection::serverInit(); |
| 292 | |
| 293 | // If using AutoSelect with old servers, start in FullColor |
| 294 | // mode. See comment in autoSelectFormatAndEncoding. |
| 295 | if (cp.beforeVersion(3, 8) && autoSelect) |
| 296 | fullColour.setParam(true); |
| 297 | |
| 298 | serverPF = cp.pf(); |
| 299 | |
| 300 | desktop = new DesktopWindow(cp.width, cp.height, cp.name(), serverPF, this); |
| 301 | fullColourPF = desktop->getPreferredPF(); |
| 302 | |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 303 | // Force a switch to the format and encoding we'd like |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 304 | formatChange = encodingChange = true; |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 305 | |
| 306 | // And kick off the update cycle |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 307 | requestNewUpdate(); |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 308 | |
| 309 | // This initial update request is a bit of a corner case, so we need |
| 310 | // to help out setting the correct format here. |
| 311 | assert(pendingPFChange); |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 312 | cp.setPF(pendingPF); |
| 313 | pendingPFChange = false; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | // setDesktopSize() is called when the desktop size changes (including when |
| 317 | // it is set initially). |
| 318 | void CConn::setDesktopSize(int w, int h) |
| 319 | { |
| 320 | CConnection::setDesktopSize(w,h); |
| 321 | resizeFramebuffer(); |
| 322 | } |
| 323 | |
| 324 | // setExtendedDesktopSize() is a more advanced version of setDesktopSize() |
Pierre Ossman | 28c1d54 | 2015-03-03 16:27:44 +0100 | [diff] [blame] | 325 | void CConn::setExtendedDesktopSize(unsigned reason, unsigned result, |
| 326 | int w, int h, const rfb::ScreenSet& layout) |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 327 | { |
| 328 | CConnection::setExtendedDesktopSize(reason, result, w, h, layout); |
| 329 | |
| 330 | if ((reason == reasonClient) && (result != resultSuccess)) { |
| 331 | vlog.error(_("SetDesktopSize failed: %d"), result); |
| 332 | return; |
| 333 | } |
| 334 | |
| 335 | resizeFramebuffer(); |
| 336 | } |
| 337 | |
| 338 | // setName() is called when the desktop name changes |
| 339 | void CConn::setName(const char* name) |
| 340 | { |
| 341 | CConnection::setName(name); |
| 342 | if (desktop) |
| 343 | desktop->setName(name); |
| 344 | } |
| 345 | |
| 346 | // framebufferUpdateStart() is called at the beginning of an update. |
| 347 | // Here we try to send out a new framebuffer update request so that the |
| 348 | // next update can be sent out in parallel with us decoding the current |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 349 | // one. |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 350 | void CConn::framebufferUpdateStart() |
| 351 | { |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 352 | // Note: This might not be true if sync fences are supported |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 353 | pendingUpdate = false; |
| 354 | |
| 355 | requestNewUpdate(); |
Pierre Ossman | d9b9003 | 2015-09-23 12:18:52 +0200 | [diff] [blame] | 356 | |
| 357 | // Update the screen prematurely for very slow updates |
| 358 | Fl::add_timeout(1.0, handleUpdateTimeout, this); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 359 | } |
| 360 | |
| 361 | // framebufferUpdateEnd() is called at the end of an update. |
| 362 | // For each rectangle, the FdInStream will have timed the speed |
| 363 | // of the connection, allowing us to select format and encoding |
| 364 | // appropriately, and then request another incremental update. |
| 365 | void CConn::framebufferUpdateEnd() |
| 366 | { |
Pierre Ossman | d9b9003 | 2015-09-23 12:18:52 +0200 | [diff] [blame] | 367 | Fl::remove_timeout(handleUpdateTimeout, this); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 368 | desktop->updateWindow(); |
| 369 | |
| 370 | if (firstUpdate) { |
Pierre Ossman | aa73c89 | 2011-11-15 12:13:37 +0000 | [diff] [blame] | 371 | // We need fences to make extra update requests and continuous |
| 372 | // updates "safe". See fence() for the next step. |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 373 | if (cp.supportsFence) |
| 374 | writer()->writeFence(fenceFlagRequest | fenceFlagSyncNext, 0, NULL); |
| 375 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 376 | firstUpdate = false; |
| 377 | } |
| 378 | |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 379 | // A format change has been scheduled and we are now past the update |
| 380 | // with the old format. Time to active the new one. |
| 381 | if (pendingPFChange) { |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 382 | cp.setPF(pendingPF); |
| 383 | pendingPFChange = false; |
| 384 | } |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 385 | |
| 386 | // Compute new settings based on updated bandwidth values |
| 387 | if (autoSelect) |
| 388 | autoSelectFormatAndEncoding(); |
| 389 | |
| 390 | // Make sure that the FLTK handling and the timers gets some CPU time |
| 391 | // in case of back to back framebuffer updates. |
| 392 | Fl::check(); |
| 393 | Timer::checkTimeouts(); |
| 394 | } |
| 395 | |
| 396 | // The rest of the callbacks are fairly self-explanatory... |
| 397 | |
| 398 | void CConn::setColourMapEntries(int firstColour, int nColours, rdr::U16* rgbs) |
| 399 | { |
Pierre Ossman | 8ca4c1d | 2014-09-22 12:54:26 +0200 | [diff] [blame] | 400 | vlog.error(_("Invalid SetColourMapEntries from server!")); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | void CConn::bell() |
| 404 | { |
| 405 | fl_beep(); |
| 406 | } |
| 407 | |
| 408 | void CConn::serverCutText(const char* str, rdr::U32 len) |
| 409 | { |
Pierre Ossman | 689c458 | 2011-05-26 15:39:41 +0000 | [diff] [blame] | 410 | char *buffer; |
| 411 | int size, ret; |
Pierre Ossman | d81e8f4 | 2011-05-19 14:47:15 +0000 | [diff] [blame] | 412 | |
Pierre Ossman | 5010488 | 2013-05-24 10:47:27 +0000 | [diff] [blame] | 413 | if (!acceptClipboard) |
| 414 | return; |
| 415 | |
Pierre Ossman | 689c458 | 2011-05-26 15:39:41 +0000 | [diff] [blame] | 416 | size = fl_utf8froma(NULL, 0, str, len); |
| 417 | if (size <= 0) |
Pierre Ossman | d81e8f4 | 2011-05-19 14:47:15 +0000 | [diff] [blame] | 418 | return; |
Pierre Ossman | 689c458 | 2011-05-26 15:39:41 +0000 | [diff] [blame] | 419 | |
| 420 | size++; |
| 421 | |
| 422 | buffer = new char[size]; |
| 423 | |
| 424 | ret = fl_utf8froma(buffer, size, str, len); |
| 425 | assert(ret < size); |
Pierre Ossman | d81e8f4 | 2011-05-19 14:47:15 +0000 | [diff] [blame] | 426 | |
Pierre Ossman | fb450fb | 2015-03-03 16:34:56 +0100 | [diff] [blame] | 427 | vlog.debug("Got clipboard data (%d bytes)", (int)strlen(buffer)); |
Pierre Ossman | d81e8f4 | 2011-05-19 14:47:15 +0000 | [diff] [blame] | 428 | |
Pierre Ossman | cf2443c | 2011-09-07 09:01:20 +0000 | [diff] [blame] | 429 | // RFB doesn't have separate selection and clipboard concepts, so we |
| 430 | // dump the data into both variants. |
| 431 | Fl::copy(buffer, ret, 0); |
Pierre Ossman | d81e8f4 | 2011-05-19 14:47:15 +0000 | [diff] [blame] | 432 | Fl::copy(buffer, ret, 1); |
Pierre Ossman | 689c458 | 2011-05-26 15:39:41 +0000 | [diff] [blame] | 433 | |
| 434 | delete [] buffer; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 435 | } |
| 436 | |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 437 | void CConn::dataRect(const Rect& r, int encoding) |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 438 | { |
| 439 | sock->inStream().startTiming(); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 440 | |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 441 | if (encoding != encodingCopyRect) |
| 442 | lastServerEncoding = encoding; |
| 443 | |
| 444 | if (!Decoder::supported(encoding)) { |
Pierre Ossman | 744e55c | 2014-12-03 14:00:54 +0100 | [diff] [blame] | 445 | // TRANSLATORS: Refers to a VNC protocol encoding type |
Pierre Ossman | c76bd2b | 2014-12-03 14:01:31 +0100 | [diff] [blame] | 446 | vlog.error(_("Unknown encoding %d"), encoding); |
| 447 | throw Exception(_("Unknown encoding")); |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 448 | } |
| 449 | |
| 450 | if (!decoders[encoding]) { |
Pierre Ossman | 668468b | 2014-01-31 12:37:32 +0100 | [diff] [blame] | 451 | decoders[encoding] = Decoder::createDecoder(encoding, this); |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 452 | if (!decoders[encoding]) { |
Pierre Ossman | c76bd2b | 2014-12-03 14:01:31 +0100 | [diff] [blame] | 453 | vlog.error(_("Unknown encoding %d"), encoding); |
| 454 | throw Exception(_("Unknown encoding")); |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 455 | } |
| 456 | } |
Pierre Ossman | 0c9bd4b | 2014-07-09 16:44:11 +0200 | [diff] [blame] | 457 | decoders[encoding]->readRect(r, desktop->getFramebuffer()); |
Pierre Ossman | fdba3fe | 2014-01-31 13:12:18 +0100 | [diff] [blame] | 458 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 459 | sock->inStream().stopTiming(); |
| 460 | } |
| 461 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 462 | void CConn::setCursor(int width, int height, const Point& hotspot, |
| 463 | void* data, void* mask) |
| 464 | { |
Pierre Ossman | 835b4ef | 2011-06-08 17:02:36 +0000 | [diff] [blame] | 465 | desktop->setCursor(width, height, hotspot, data, mask); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 466 | } |
| 467 | |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 468 | void CConn::fence(rdr::U32 flags, unsigned len, const char data[]) |
| 469 | { |
| 470 | CMsgHandler::fence(flags, len, data); |
| 471 | |
| 472 | if (flags & fenceFlagRequest) { |
| 473 | // We handle everything synchronously so we trivially honor these modes |
| 474 | flags = flags & (fenceFlagBlockBefore | fenceFlagBlockAfter); |
| 475 | |
| 476 | writer()->writeFence(flags, len, data); |
| 477 | return; |
| 478 | } |
| 479 | |
| 480 | if (len == 0) { |
| 481 | // Initial probe |
Pierre Ossman | aa73c89 | 2011-11-15 12:13:37 +0000 | [diff] [blame] | 482 | if (flags & fenceFlagSyncNext) { |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 483 | supportsSyncFence = true; |
Pierre Ossman | aa73c89 | 2011-11-15 12:13:37 +0000 | [diff] [blame] | 484 | |
| 485 | if (cp.supportsContinuousUpdates) { |
| 486 | vlog.info(_("Enabling continuous updates")); |
| 487 | continuousUpdates = true; |
| 488 | writer()->writeEnableContinuousUpdates(true, 0, 0, cp.width, cp.height); |
| 489 | } |
| 490 | } |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 491 | } else { |
| 492 | // Pixel format change |
| 493 | rdr::MemInStream memStream(data, len); |
| 494 | PixelFormat pf; |
| 495 | |
| 496 | pf.read(&memStream); |
| 497 | |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 498 | cp.setPF(pf); |
| 499 | } |
| 500 | } |
| 501 | |
DRC | 33c15e3 | 2011-11-03 18:49:21 +0000 | [diff] [blame] | 502 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 503 | ////////////////////// Internal methods ////////////////////// |
| 504 | |
| 505 | void CConn::resizeFramebuffer() |
| 506 | { |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 507 | if (!desktop) |
| 508 | return; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 509 | |
Pierre Ossman | aa73c89 | 2011-11-15 12:13:37 +0000 | [diff] [blame] | 510 | if (continuousUpdates) |
| 511 | writer()->writeEnableContinuousUpdates(true, 0, 0, cp.width, cp.height); |
| 512 | |
Pierre Ossman | 6455d85 | 2011-06-01 09:33:00 +0000 | [diff] [blame] | 513 | desktop->resizeFramebuffer(cp.width, cp.height); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 514 | } |
| 515 | |
| 516 | // autoSelectFormatAndEncoding() chooses the format and encoding appropriate |
| 517 | // to the connection speed: |
| 518 | // |
| 519 | // First we wait for at least one second of bandwidth measurement. |
| 520 | // |
| 521 | // Above 16Mbps (i.e. LAN), we choose the second highest JPEG quality, |
| 522 | // which should be perceptually lossless. |
| 523 | // |
| 524 | // If the bandwidth is below that, we choose a more lossy JPEG quality. |
| 525 | // |
| 526 | // If the bandwidth drops below 256 Kbps, we switch to palette mode. |
| 527 | // |
| 528 | // Note: The system here is fairly arbitrary and should be replaced |
| 529 | // with something more intelligent at the server end. |
| 530 | // |
| 531 | void CConn::autoSelectFormatAndEncoding() |
| 532 | { |
| 533 | int kbitsPerSecond = sock->inStream().kbitsPerSecond(); |
| 534 | unsigned int timeWaited = sock->inStream().timeWaited(); |
| 535 | bool newFullColour = fullColour; |
| 536 | int newQualityLevel = qualityLevel; |
| 537 | |
| 538 | // Always use Tight |
| 539 | if (currentEncoding != encodingTight) { |
| 540 | currentEncoding = encodingTight; |
| 541 | encodingChange = true; |
| 542 | } |
| 543 | |
| 544 | // Check that we have a decent bandwidth measurement |
| 545 | if ((kbitsPerSecond == 0) || (timeWaited < 10000)) |
| 546 | return; |
| 547 | |
| 548 | // Select appropriate quality level |
| 549 | if (!noJpeg) { |
| 550 | if (kbitsPerSecond > 16000) |
| 551 | newQualityLevel = 8; |
| 552 | else |
| 553 | newQualityLevel = 6; |
| 554 | |
| 555 | if (newQualityLevel != qualityLevel) { |
| 556 | vlog.info(_("Throughput %d kbit/s - changing to quality %d"), |
| 557 | kbitsPerSecond, newQualityLevel); |
| 558 | cp.qualityLevel = newQualityLevel; |
| 559 | qualityLevel.setParam(newQualityLevel); |
| 560 | encodingChange = true; |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | if (cp.beforeVersion(3, 8)) { |
| 565 | // Xvnc from TightVNC 1.2.9 sends out FramebufferUpdates with |
| 566 | // cursors "asynchronously". If this happens in the middle of a |
| 567 | // pixel format change, the server will encode the cursor with |
| 568 | // the old format, but the client will try to decode it |
| 569 | // according to the new format. This will lead to a |
| 570 | // crash. Therefore, we do not allow automatic format change for |
| 571 | // old servers. |
| 572 | return; |
| 573 | } |
| 574 | |
| 575 | // Select best color level |
| 576 | newFullColour = (kbitsPerSecond > 256); |
| 577 | if (newFullColour != fullColour) { |
| 578 | vlog.info(_("Throughput %d kbit/s - full color is now %s"), |
| 579 | kbitsPerSecond, |
| 580 | newFullColour ? _("enabled") : _("disabled")); |
| 581 | fullColour.setParam(newFullColour); |
| 582 | formatChange = true; |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | // checkEncodings() sends a setEncodings message if one is needed. |
| 587 | void CConn::checkEncodings() |
| 588 | { |
| 589 | if (encodingChange && writer()) { |
| 590 | vlog.info(_("Using %s encoding"),encodingName(currentEncoding)); |
| 591 | writer()->writeSetEncodings(currentEncoding, true); |
| 592 | encodingChange = false; |
| 593 | } |
| 594 | } |
| 595 | |
| 596 | // requestNewUpdate() requests an update from the server, having set the |
| 597 | // format and encoding appropriately. |
| 598 | void CConn::requestNewUpdate() |
| 599 | { |
| 600 | if (formatChange) { |
| 601 | PixelFormat pf; |
| 602 | |
| 603 | /* Catch incorrect requestNewUpdate calls */ |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 604 | assert(!pendingUpdate || supportsSyncFence); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 605 | |
| 606 | if (fullColour) { |
| 607 | pf = fullColourPF; |
| 608 | } else { |
| 609 | if (lowColourLevel == 0) |
Pierre Ossman | cf836f2 | 2011-07-14 14:34:09 +0000 | [diff] [blame] | 610 | pf = verylowColourPF; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 611 | else if (lowColourLevel == 1) |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 612 | pf = lowColourPF; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 613 | else |
Pierre Ossman | cf836f2 | 2011-07-14 14:34:09 +0000 | [diff] [blame] | 614 | pf = mediumColourPF; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 615 | } |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 616 | |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 617 | if (supportsSyncFence) { |
| 618 | // We let the fence carry the pixel format and switch once we |
| 619 | // get the response back. That way we will be synchronised with |
| 620 | // when the server switches. |
| 621 | rdr::MemOutStream memStream; |
| 622 | |
| 623 | pf.write(&memStream); |
| 624 | |
| 625 | writer()->writeFence(fenceFlagRequest | fenceFlagSyncNext, |
| 626 | memStream.length(), (const char*)memStream.data()); |
| 627 | } else { |
| 628 | // New requests are sent out at the start of processing the last |
| 629 | // one, so we cannot switch our internal format right now (doing so |
| 630 | // would mean misdecoding the current update). |
| 631 | pendingPFChange = true; |
| 632 | pendingPF = pf; |
| 633 | } |
Pierre Ossman | 5d512c3 | 2011-11-04 11:42:16 +0000 | [diff] [blame] | 634 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 635 | char str[256]; |
| 636 | pf.print(str, 256); |
| 637 | vlog.info(_("Using pixel format %s"),str); |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 638 | writer()->writeSetPixelFormat(pf); |
Pierre Ossman | d4c61ce | 2011-04-29 11:18:12 +0000 | [diff] [blame] | 639 | |
Pierre Ossman | d4c61ce | 2011-04-29 11:18:12 +0000 | [diff] [blame] | 640 | formatChange = false; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 641 | } |
Pierre Ossman | d4c61ce | 2011-04-29 11:18:12 +0000 | [diff] [blame] | 642 | |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 643 | checkEncodings(); |
Pierre Ossman | d4c61ce | 2011-04-29 11:18:12 +0000 | [diff] [blame] | 644 | |
Pierre Ossman | aa73c89 | 2011-11-15 12:13:37 +0000 | [diff] [blame] | 645 | if (forceNonincremental || !continuousUpdates) { |
| 646 | pendingUpdate = true; |
| 647 | writer()->writeFramebufferUpdateRequest(Rect(0, 0, cp.width, cp.height), |
| 648 | !forceNonincremental); |
| 649 | } |
Pierre Ossman | d4c61ce | 2011-04-29 11:18:12 +0000 | [diff] [blame] | 650 | |
| 651 | forceNonincremental = false; |
Pierre Ossman | 5156d5e | 2011-03-09 09:42:34 +0000 | [diff] [blame] | 652 | } |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 653 | |
| 654 | void CConn::handleOptions(void *data) |
| 655 | { |
| 656 | CConn *self = (CConn*)data; |
| 657 | |
| 658 | // Checking all the details of the current set of encodings is just |
| 659 | // a pain. Assume something has changed, as resending the encoding |
| 660 | // list is cheap. Avoid overriding what the auto logic has selected |
| 661 | // though. |
| 662 | if (!autoSelect) { |
| 663 | int encNum = encodingNum(preferredEncoding); |
| 664 | |
| 665 | if (encNum != -1) |
| 666 | self->currentEncoding = encNum; |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 667 | } |
| 668 | |
Pierre Ossman | da38956 | 2011-06-09 08:24:37 +0000 | [diff] [blame] | 669 | self->cp.supportsLocalCursor = true; |
| 670 | |
Pierre Ossman | a22459d | 2014-03-17 14:42:10 +0100 | [diff] [blame] | 671 | if (customCompressLevel) |
| 672 | self->cp.compressLevel = compressLevel; |
| 673 | else |
| 674 | self->cp.compressLevel = -1; |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 675 | |
Pierre Ossman | a22459d | 2014-03-17 14:42:10 +0100 | [diff] [blame] | 676 | if (!noJpeg && !autoSelect) |
| 677 | self->cp.qualityLevel = qualityLevel; |
| 678 | else |
| 679 | self->cp.qualityLevel = -1; |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 680 | |
| 681 | self->encodingChange = true; |
| 682 | |
| 683 | // Format changes refreshes the entire screen though and are therefore |
| 684 | // very costly. It's probably worth the effort to see if it is necessary |
| 685 | // here. |
| 686 | PixelFormat pf; |
| 687 | |
| 688 | if (fullColour) { |
| 689 | pf = self->fullColourPF; |
| 690 | } else { |
| 691 | if (lowColourLevel == 0) |
Pierre Ossman | cf836f2 | 2011-07-14 14:34:09 +0000 | [diff] [blame] | 692 | pf = verylowColourPF; |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 693 | else if (lowColourLevel == 1) |
| 694 | pf = lowColourPF; |
| 695 | else |
Pierre Ossman | cf836f2 | 2011-07-14 14:34:09 +0000 | [diff] [blame] | 696 | pf = mediumColourPF; |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 697 | } |
| 698 | |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 699 | if (!pf.equal(self->cp.pf())) { |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 700 | self->formatChange = true; |
Pierre Ossman | e28bdb2 | 2011-11-14 16:02:06 +0000 | [diff] [blame] | 701 | |
| 702 | // Without fences, we cannot safely trigger an update request directly |
| 703 | // but must wait for the next update to arrive. |
| 704 | if (self->supportsSyncFence) |
| 705 | self->requestNewUpdate(); |
| 706 | } |
Pierre Ossman | f4f3094 | 2011-05-17 09:39:07 +0000 | [diff] [blame] | 707 | } |
Pierre Ossman | d9b9003 | 2015-09-23 12:18:52 +0200 | [diff] [blame] | 708 | |
| 709 | void CConn::handleUpdateTimeout(void *data) |
| 710 | { |
| 711 | CConn *self = (CConn *)data; |
| 712 | |
| 713 | assert(self); |
| 714 | |
| 715 | self->desktop->updateWindow(); |
| 716 | |
| 717 | Fl::repeat_timeout(1.0, handleUpdateTimeout, data); |
| 718 | } |