Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 1 | /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved. |
DRC | b4a8323 | 2011-08-19 04:57:18 +0000 | [diff] [blame] | 2 | * Copyright (C) 2011 D. R. Commander. All Rights Reserved. |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 3 | * Copyright 2009-2014 Pierre Ossman for Cendio AB |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +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 | #include <stdio.h> |
| 21 | #include <assert.h> |
| 22 | #include <rdr/OutStream.h> |
| 23 | #include <rfb/msgTypes.h> |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 24 | #include <rfb/fenceTypes.h> |
| 25 | #include <rfb/Exception.h> |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 26 | #include <rfb/ColourMap.h> |
| 27 | #include <rfb/ConnParams.h> |
| 28 | #include <rfb/UpdateTracker.h> |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 29 | #include <rfb/Encoder.h> |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 30 | #include <rfb/SMsgWriter.h> |
| 31 | #include <rfb/LogWriter.h> |
| 32 | |
| 33 | using namespace rfb; |
| 34 | |
| 35 | static LogWriter vlog("SMsgWriter"); |
| 36 | |
| 37 | SMsgWriter::SMsgWriter(ConnParams* cp_, rdr::OutStream* os_) |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 38 | : imageBufIdealSize(0), cp(cp_), os(os_), currentEncoding(0), |
| 39 | nRectsInUpdate(0), nRectsInHeader(0), |
| 40 | wsccb(0), needSetDesktopSize(false), |
| 41 | needExtendedDesktopSize(false), needSetDesktopName(false), |
| 42 | lenBeforeRect(0), updatesSent(0), rawBytesEquivalent(0), |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 43 | imageBuf(0), imageBufSize(0) |
| 44 | { |
Peter Åstrand | 98fe98c | 2010-02-10 07:43:02 +0000 | [diff] [blame] | 45 | for (int i = 0; i <= encodingMax; i++) { |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 46 | encoders[i] = 0; |
| 47 | bytesSent[i] = 0; |
| 48 | rectsSent[i] = 0; |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | SMsgWriter::~SMsgWriter() |
| 53 | { |
| 54 | vlog.info("framebuffer updates %d",updatesSent); |
| 55 | int bytes = 0; |
Peter Åstrand | 98fe98c | 2010-02-10 07:43:02 +0000 | [diff] [blame] | 56 | for (int i = 0; i <= encodingMax; i++) { |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 57 | delete encoders[i]; |
| 58 | if (i != encodingCopyRect) |
| 59 | bytes += bytesSent[i]; |
| 60 | if (rectsSent[i]) |
| 61 | vlog.info(" %s rects %d, bytes %d", |
| 62 | encodingName(i), rectsSent[i], bytesSent[i]); |
| 63 | } |
DRC | 887c5fd | 2011-08-19 03:13:47 +0000 | [diff] [blame] | 64 | vlog.info(" raw bytes equivalent %llu, compression ratio %f", |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 65 | rawBytesEquivalent, (double)rawBytesEquivalent / bytes); |
| 66 | delete [] imageBuf; |
| 67 | } |
| 68 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 69 | void SMsgWriter::writeServerInit() |
| 70 | { |
| 71 | os->writeU16(cp->width); |
| 72 | os->writeU16(cp->height); |
| 73 | cp->pf().write(os); |
| 74 | os->writeString(cp->name()); |
| 75 | endMsg(); |
| 76 | } |
| 77 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 78 | void SMsgWriter::writeSetColourMapEntries(int firstColour, int nColours, |
| 79 | ColourMap* cm) |
| 80 | { |
| 81 | startMsg(msgTypeSetColourMapEntries); |
| 82 | os->pad(1); |
| 83 | os->writeU16(firstColour); |
| 84 | os->writeU16(nColours); |
| 85 | for (int i = firstColour; i < firstColour+nColours; i++) { |
| 86 | int r, g, b; |
| 87 | cm->lookup(i, &r, &g, &b); |
| 88 | os->writeU16(r); |
| 89 | os->writeU16(g); |
| 90 | os->writeU16(b); |
| 91 | } |
| 92 | endMsg(); |
| 93 | } |
| 94 | |
| 95 | void SMsgWriter::writeBell() |
| 96 | { |
| 97 | startMsg(msgTypeBell); |
| 98 | endMsg(); |
| 99 | } |
| 100 | |
| 101 | void SMsgWriter::writeServerCutText(const char* str, int len) |
| 102 | { |
| 103 | startMsg(msgTypeServerCutText); |
| 104 | os->pad(3); |
| 105 | os->writeU32(len); |
| 106 | os->writeBytes(str, len); |
| 107 | endMsg(); |
| 108 | } |
| 109 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 110 | void SMsgWriter::writeFence(rdr::U32 flags, unsigned len, const char data[]) |
| 111 | { |
| 112 | if (!cp->supportsFence) |
| 113 | throw Exception("Client does not support fences"); |
| 114 | if (len > 64) |
| 115 | throw Exception("Too large fence payload"); |
| 116 | if ((flags & ~fenceFlagsSupported) != 0) |
| 117 | throw Exception("Unknown fence flags"); |
| 118 | |
| 119 | startMsg(msgTypeServerFence); |
| 120 | os->pad(3); |
| 121 | |
| 122 | os->writeU32(flags); |
| 123 | |
| 124 | os->writeU8(len); |
| 125 | os->writeBytes(data, len); |
| 126 | |
| 127 | endMsg(); |
| 128 | } |
| 129 | |
| 130 | void SMsgWriter::writeEndOfContinuousUpdates() |
| 131 | { |
| 132 | if (!cp->supportsContinuousUpdates) |
| 133 | throw Exception("Client does not support continuous updates"); |
| 134 | |
| 135 | startMsg(msgTypeEndOfContinuousUpdates); |
| 136 | endMsg(); |
| 137 | } |
| 138 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 139 | void SMsgWriter::setupCurrentEncoder() |
| 140 | { |
Peter Åstrand | 98fe98c | 2010-02-10 07:43:02 +0000 | [diff] [blame] | 141 | int encoding = cp->currentEncoding(); |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 142 | |
| 143 | // FIXME: Code duplication, see writeRect(). |
| 144 | if (!encoders[encoding]) { |
| 145 | encoders[encoding] = Encoder::createEncoder(encoding, this); |
| 146 | assert(encoders[encoding]); |
| 147 | } |
| 148 | |
| 149 | encoders[encoding]->setCompressLevel(cp->compressLevel); |
| 150 | encoders[encoding]->setQualityLevel(cp->qualityLevel); |
DRC | b4a8323 | 2011-08-19 04:57:18 +0000 | [diff] [blame] | 151 | encoders[encoding]->setFineQualityLevel(cp->fineQualityLevel, |
| 152 | cp->subsampling); |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 153 | } |
| 154 | |
| 155 | int SMsgWriter::getNumRects(const Rect &r) |
| 156 | { |
Peter Åstrand | 98fe98c | 2010-02-10 07:43:02 +0000 | [diff] [blame] | 157 | int encoding = cp->currentEncoding(); |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 158 | |
| 159 | if (!encoders[encoding]) |
| 160 | setupCurrentEncoder(); |
| 161 | |
| 162 | return encoders[encoding]->getNumRects(r); |
| 163 | } |
| 164 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 165 | bool SMsgWriter::writeSetDesktopSize() { |
| 166 | if (!cp->supportsDesktopResize) |
| 167 | return false; |
| 168 | |
| 169 | needSetDesktopSize = true; |
| 170 | |
| 171 | return true; |
| 172 | } |
| 173 | |
| 174 | bool SMsgWriter::writeExtendedDesktopSize() { |
| 175 | if (!cp->supportsExtendedDesktopSize) |
| 176 | return false; |
| 177 | |
| 178 | needExtendedDesktopSize = true; |
| 179 | |
| 180 | return true; |
| 181 | } |
| 182 | |
| 183 | bool SMsgWriter::writeExtendedDesktopSize(rdr::U16 reason, rdr::U16 result, |
| 184 | int fb_width, int fb_height, |
| 185 | const ScreenSet& layout) { |
| 186 | ExtendedDesktopSizeMsg msg; |
| 187 | |
| 188 | if (!cp->supportsExtendedDesktopSize) |
| 189 | return false; |
| 190 | |
| 191 | msg.reason = reason; |
| 192 | msg.result = result; |
| 193 | msg.fb_width = fb_width; |
| 194 | msg.fb_height = fb_height; |
| 195 | msg.layout = layout; |
| 196 | |
| 197 | extendedDesktopSizeMsgs.push_back(msg); |
| 198 | |
| 199 | return true; |
| 200 | } |
| 201 | |
| 202 | bool SMsgWriter::writeSetDesktopName() { |
| 203 | if (!cp->supportsDesktopRename) |
| 204 | return false; |
| 205 | |
| 206 | needSetDesktopName = true; |
| 207 | |
| 208 | return true; |
| 209 | } |
| 210 | |
| 211 | void SMsgWriter::cursorChange(WriteSetCursorCallback* cb) |
| 212 | { |
| 213 | wsccb = cb; |
| 214 | } |
| 215 | |
| 216 | void SMsgWriter::writeSetCursor(int width, int height, const Point& hotspot, |
| 217 | void* data, void* mask) |
| 218 | { |
| 219 | if (!wsccb) |
| 220 | return; |
| 221 | |
| 222 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 223 | throw Exception("SMsgWriter::writeSetCursor: nRects out of sync"); |
| 224 | |
| 225 | os->writeS16(hotspot.x); |
| 226 | os->writeS16(hotspot.y); |
| 227 | os->writeU16(width); |
| 228 | os->writeU16(height); |
| 229 | os->writeU32(pseudoEncodingCursor); |
| 230 | os->writeBytes(data, width * height * (cp->pf().bpp/8)); |
| 231 | os->writeBytes(mask, (width+7)/8 * height); |
| 232 | } |
| 233 | |
| 234 | void SMsgWriter::writeSetXCursor(int width, int height, int hotspotX, |
| 235 | int hotspotY, void* data, void* mask) |
| 236 | { |
| 237 | if (!wsccb) |
| 238 | return; |
| 239 | |
| 240 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 241 | throw Exception("SMsgWriter::writeSetXCursor: nRects out of sync"); |
| 242 | |
| 243 | os->writeS16(hotspotX); |
| 244 | os->writeS16(hotspotY); |
| 245 | os->writeU16(width); |
| 246 | os->writeU16(height); |
| 247 | os->writeU32(pseudoEncodingXCursor); |
| 248 | // FIXME: We only support black and white cursors, currently. We |
| 249 | // could pass the correct color by using the pix0/pix1 values |
| 250 | // returned from getBitmap, in writeSetCursorCallback. However, we |
| 251 | // would then need to undo the conversion from rgb to Pixel that is |
| 252 | // done by FakeAllocColor. |
| 253 | if (width * height) { |
| 254 | os->writeU8(0); |
| 255 | os->writeU8(0); |
| 256 | os->writeU8(0); |
| 257 | os->writeU8(255); |
| 258 | os->writeU8(255); |
| 259 | os->writeU8(255); |
| 260 | os->writeBytes(data, (width+7)/8 * height); |
| 261 | os->writeBytes(mask, (width+7)/8 * height); |
| 262 | } |
| 263 | } |
| 264 | |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 265 | bool SMsgWriter::needFakeUpdate() |
| 266 | { |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 267 | return wsccb || needSetDesktopName || needNoDataUpdate(); |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 268 | } |
| 269 | |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 270 | bool SMsgWriter::needNoDataUpdate() |
| 271 | { |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 272 | return needSetDesktopSize || needExtendedDesktopSize || |
| 273 | !extendedDesktopSizeMsgs.empty(); |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | void SMsgWriter::writeNoDataUpdate() |
| 277 | { |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 278 | int nRects; |
| 279 | |
| 280 | nRects = 0; |
| 281 | |
| 282 | if (needSetDesktopSize) |
| 283 | nRects++; |
| 284 | if (needExtendedDesktopSize) |
| 285 | nRects++; |
| 286 | if (!extendedDesktopSizeMsgs.empty()) |
| 287 | nRects += extendedDesktopSizeMsgs.size(); |
| 288 | |
| 289 | writeFramebufferUpdateStart(nRects); |
| 290 | writeNoDataRects(); |
| 291 | writeFramebufferUpdateEnd(); |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 292 | } |
| 293 | |
DRC | ffe09d6 | 2011-08-17 02:27:59 +0000 | [diff] [blame] | 294 | void SMsgWriter::writeRects(const UpdateInfo& ui, TransImageGetter* ig, |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 295 | Region* updatedRegion) |
| 296 | { |
| 297 | std::vector<Rect> rects; |
| 298 | std::vector<Rect>::const_iterator i; |
| 299 | updatedRegion->copyFrom(ui.changed); |
| 300 | updatedRegion->assign_union(ui.copied); |
| 301 | |
| 302 | ui.copied.get_rects(&rects, ui.copy_delta.x <= 0, ui.copy_delta.y <= 0); |
| 303 | for (i = rects.begin(); i != rects.end(); i++) |
| 304 | writeCopyRect(*i, i->tl.x - ui.copy_delta.x, i->tl.y - ui.copy_delta.y); |
| 305 | |
| 306 | ui.changed.get_rects(&rects); |
| 307 | for (i = rects.begin(); i != rects.end(); i++) { |
| 308 | Rect actual; |
| 309 | if (!writeRect(*i, ig, &actual)) { |
| 310 | updatedRegion->assign_subtract(*i); |
| 311 | updatedRegion->assign_union(actual); |
| 312 | } |
| 313 | } |
| 314 | } |
| 315 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 316 | void SMsgWriter::writeFramebufferUpdateStart(int nRects) |
| 317 | { |
| 318 | startMsg(msgTypeFramebufferUpdate); |
| 319 | os->pad(1); |
| 320 | |
| 321 | if (nRects != 0xFFFF) { |
| 322 | if (wsccb) |
| 323 | nRects++; |
| 324 | if (needSetDesktopName) |
| 325 | nRects++; |
| 326 | } |
| 327 | |
| 328 | os->writeU16(nRects); |
| 329 | |
| 330 | nRectsInUpdate = 0; |
| 331 | if (nRects == 0xFFFF) |
| 332 | nRectsInHeader = 0; |
| 333 | else |
| 334 | nRectsInHeader = nRects; |
| 335 | |
| 336 | writePseudoRects(); |
| 337 | } |
| 338 | |
| 339 | void SMsgWriter::writeFramebufferUpdateEnd() |
| 340 | { |
| 341 | if (nRectsInUpdate != nRectsInHeader && nRectsInHeader) |
| 342 | throw Exception("SMsgWriter::writeFramebufferUpdateEnd: " |
| 343 | "nRects out of sync"); |
| 344 | |
| 345 | if (nRectsInHeader == 0) { |
| 346 | // Send last rect. marker |
| 347 | os->writeS16(0); |
| 348 | os->writeS16(0); |
| 349 | os->writeU16(0); |
| 350 | os->writeU16(0); |
| 351 | os->writeU32(pseudoEncodingLastRect); |
| 352 | } |
| 353 | |
| 354 | updatesSent++; |
| 355 | endMsg(); |
| 356 | } |
| 357 | |
DRC | ffe09d6 | 2011-08-17 02:27:59 +0000 | [diff] [blame] | 358 | bool SMsgWriter::writeRect(const Rect& r, TransImageGetter* ig, Rect* actual) |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 359 | { |
| 360 | return writeRect(r, cp->currentEncoding(), ig, actual); |
| 361 | } |
| 362 | |
Peter Åstrand | 98fe98c | 2010-02-10 07:43:02 +0000 | [diff] [blame] | 363 | bool SMsgWriter::writeRect(const Rect& r, int encoding, |
DRC | ffe09d6 | 2011-08-17 02:27:59 +0000 | [diff] [blame] | 364 | TransImageGetter* ig, Rect* actual) |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 365 | { |
| 366 | if (!encoders[encoding]) { |
| 367 | encoders[encoding] = Encoder::createEncoder(encoding, this); |
| 368 | assert(encoders[encoding]); |
| 369 | } |
| 370 | return encoders[encoding]->writeRect(r, ig, actual); |
| 371 | } |
| 372 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 373 | void SMsgWriter::writeCopyRect(const Rect& r, int srcX, int srcY) |
| 374 | { |
| 375 | startRect(r,encodingCopyRect); |
| 376 | os->writeU16(srcX); |
| 377 | os->writeU16(srcY); |
| 378 | endRect(); |
| 379 | } |
| 380 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 381 | void SMsgWriter::startRect(const Rect& r, int encoding) |
| 382 | { |
| 383 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 384 | throw Exception("SMsgWriter::startRect: nRects out of sync"); |
| 385 | |
| 386 | currentEncoding = encoding; |
| 387 | lenBeforeRect = os->length(); |
| 388 | if (encoding != encodingCopyRect) |
| 389 | rawBytesEquivalent += 12 + r.width() * r.height() * (bpp()/8); |
| 390 | |
| 391 | os->writeS16(r.tl.x); |
| 392 | os->writeS16(r.tl.y); |
| 393 | os->writeU16(r.width()); |
| 394 | os->writeU16(r.height()); |
| 395 | os->writeU32(encoding); |
| 396 | } |
| 397 | |
| 398 | void SMsgWriter::endRect() |
| 399 | { |
| 400 | if (currentEncoding <= encodingMax) { |
| 401 | bytesSent[currentEncoding] += os->length() - lenBeforeRect; |
| 402 | rectsSent[currentEncoding]++; |
| 403 | } |
| 404 | } |
| 405 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 406 | rdr::U8* SMsgWriter::getImageBuf(int required, int requested, int* nPixels) |
| 407 | { |
| 408 | int requiredBytes = required * (cp->pf().bpp / 8); |
| 409 | int requestedBytes = requested * (cp->pf().bpp / 8); |
| 410 | int size = requestedBytes; |
| 411 | if (size > imageBufIdealSize) size = imageBufIdealSize; |
| 412 | |
| 413 | if (size < requiredBytes) |
| 414 | size = requiredBytes; |
| 415 | |
| 416 | if (imageBufSize < size) { |
| 417 | imageBufSize = size; |
| 418 | delete [] imageBuf; |
| 419 | imageBuf = new rdr::U8[imageBufSize]; |
| 420 | } |
| 421 | if (nPixels) |
| 422 | *nPixels = imageBufSize / (cp->pf().bpp / 8); |
| 423 | return imageBuf; |
| 424 | } |
| 425 | |
| 426 | int SMsgWriter::bpp() |
| 427 | { |
| 428 | return cp->pf().bpp; |
| 429 | } |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame^] | 430 | |
| 431 | void SMsgWriter::startMsg(int type) |
| 432 | { |
| 433 | os->writeU8(type); |
| 434 | } |
| 435 | |
| 436 | void SMsgWriter::endMsg() |
| 437 | { |
| 438 | os->flush(); |
| 439 | } |
| 440 | |
| 441 | void SMsgWriter::writePseudoRects() |
| 442 | { |
| 443 | if (wsccb) { |
| 444 | wsccb->writeSetCursorCallback(); |
| 445 | wsccb = 0; |
| 446 | } |
| 447 | |
| 448 | if (needSetDesktopName) { |
| 449 | if (!cp->supportsDesktopRename) |
| 450 | throw Exception("Client does not support desktop rename"); |
| 451 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 452 | throw Exception("SMsgWriter::setDesktopName: nRects out of sync"); |
| 453 | |
| 454 | os->writeS16(0); |
| 455 | os->writeS16(0); |
| 456 | os->writeU16(0); |
| 457 | os->writeU16(0); |
| 458 | os->writeU32(pseudoEncodingDesktopName); |
| 459 | os->writeString(cp->name()); |
| 460 | |
| 461 | needSetDesktopName = false; |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | void SMsgWriter::writeNoDataRects() |
| 466 | { |
| 467 | // Start with specific ExtendedDesktopSize messages |
| 468 | if (!extendedDesktopSizeMsgs.empty()) { |
| 469 | std::list<ExtendedDesktopSizeMsg>::const_iterator ri; |
| 470 | ScreenSet::const_iterator si; |
| 471 | |
| 472 | if (!cp->supportsExtendedDesktopSize) |
| 473 | throw Exception("Client does not support extended desktop resize"); |
| 474 | if ((nRectsInUpdate += extendedDesktopSizeMsgs.size()) > nRectsInHeader && nRectsInHeader) |
| 475 | throw Exception("SMsgWriter::SetDesktopSize reply: nRects out of sync"); |
| 476 | |
| 477 | for (ri = extendedDesktopSizeMsgs.begin();ri != extendedDesktopSizeMsgs.end();++ri) { |
| 478 | os->writeU16(ri->reason); |
| 479 | os->writeU16(ri->result); |
| 480 | os->writeU16(ri->fb_width); |
| 481 | os->writeU16(ri->fb_height); |
| 482 | os->writeU32(pseudoEncodingExtendedDesktopSize); |
| 483 | |
| 484 | os->writeU8(ri->layout.num_screens()); |
| 485 | os->pad(3); |
| 486 | |
| 487 | for (si = ri->layout.begin();si != ri->layout.end();++si) { |
| 488 | os->writeU32(si->id); |
| 489 | os->writeU16(si->dimensions.tl.x); |
| 490 | os->writeU16(si->dimensions.tl.y); |
| 491 | os->writeU16(si->dimensions.width()); |
| 492 | os->writeU16(si->dimensions.height()); |
| 493 | os->writeU32(si->flags); |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | extendedDesktopSizeMsgs.clear(); |
| 498 | } |
| 499 | |
| 500 | // Send this before SetDesktopSize to make life easier on the clients |
| 501 | if (needExtendedDesktopSize) { |
| 502 | if (!cp->supportsExtendedDesktopSize) |
| 503 | throw Exception("Client does not support extended desktop resize"); |
| 504 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 505 | throw Exception("SMsgWriter::setExtendedDesktopSize: nRects out of sync"); |
| 506 | |
| 507 | os->writeU16(0); |
| 508 | os->writeU16(0); |
| 509 | os->writeU16(cp->width); |
| 510 | os->writeU16(cp->height); |
| 511 | os->writeU32(pseudoEncodingExtendedDesktopSize); |
| 512 | |
| 513 | os->writeU8(cp->screenLayout.num_screens()); |
| 514 | os->pad(3); |
| 515 | |
| 516 | ScreenSet::const_iterator iter; |
| 517 | for (iter = cp->screenLayout.begin();iter != cp->screenLayout.end();++iter) { |
| 518 | os->writeU32(iter->id); |
| 519 | os->writeU16(iter->dimensions.tl.x); |
| 520 | os->writeU16(iter->dimensions.tl.y); |
| 521 | os->writeU16(iter->dimensions.width()); |
| 522 | os->writeU16(iter->dimensions.height()); |
| 523 | os->writeU32(iter->flags); |
| 524 | } |
| 525 | |
| 526 | needExtendedDesktopSize = false; |
| 527 | } |
| 528 | |
| 529 | // Some clients assume this is the last rectangle so don't send anything |
| 530 | // more after this |
| 531 | if (needSetDesktopSize) { |
| 532 | if (!cp->supportsDesktopResize) |
| 533 | throw Exception("Client does not support desktop resize"); |
| 534 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 535 | throw Exception("SMsgWriter::setDesktopSize: nRects out of sync"); |
| 536 | |
| 537 | os->writeS16(0); |
| 538 | os->writeS16(0); |
| 539 | os->writeU16(cp->width); |
| 540 | os->writeU16(cp->height); |
| 541 | os->writeU32(pseudoEncodingDesktopSize); |
| 542 | |
| 543 | needSetDesktopSize = false; |
| 544 | } |
| 545 | } |