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 | 6a1a0d0 | 2017-02-19 15:48:17 +0100 | [diff] [blame] | 3 | * Copyright 2009-2017 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> |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 21 | #include <rdr/OutStream.h> |
| 22 | #include <rfb/msgTypes.h> |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 23 | #include <rfb/fenceTypes.h> |
| 24 | #include <rfb/Exception.h> |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 25 | #include <rfb/ConnParams.h> |
| 26 | #include <rfb/UpdateTracker.h> |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 27 | #include <rfb/Encoder.h> |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 28 | #include <rfb/SMsgWriter.h> |
| 29 | #include <rfb/LogWriter.h> |
| 30 | |
| 31 | using namespace rfb; |
| 32 | |
| 33 | static LogWriter vlog("SMsgWriter"); |
| 34 | |
| 35 | SMsgWriter::SMsgWriter(ConnParams* cp_, rdr::OutStream* os_) |
Pierre Ossman | 20dd2a9 | 2015-02-11 17:43:15 +0100 | [diff] [blame] | 36 | : cp(cp_), os(os_), |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 37 | nRectsInUpdate(0), nRectsInHeader(0), |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 38 | needSetDesktopSize(false), needExtendedDesktopSize(false), |
Pierre Ossman | 8053c8e | 2017-02-21 12:59:04 +0100 | [diff] [blame] | 39 | needSetDesktopName(false), needSetCursor(false), |
| 40 | needSetXCursor(false), needSetCursorWithAlpha(false) |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 41 | { |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 42 | } |
| 43 | |
| 44 | SMsgWriter::~SMsgWriter() |
| 45 | { |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 46 | } |
| 47 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 48 | void SMsgWriter::writeServerInit() |
| 49 | { |
| 50 | os->writeU16(cp->width); |
| 51 | os->writeU16(cp->height); |
| 52 | cp->pf().write(os); |
| 53 | os->writeString(cp->name()); |
| 54 | endMsg(); |
| 55 | } |
| 56 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 57 | void SMsgWriter::writeSetColourMapEntries(int firstColour, int nColours, |
Pierre Ossman | b6b4dc6 | 2014-01-20 15:05:21 +0100 | [diff] [blame] | 58 | const rdr::U16 red[], |
| 59 | const rdr::U16 green[], |
| 60 | const rdr::U16 blue[]) |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 61 | { |
| 62 | startMsg(msgTypeSetColourMapEntries); |
| 63 | os->pad(1); |
| 64 | os->writeU16(firstColour); |
| 65 | os->writeU16(nColours); |
| 66 | for (int i = firstColour; i < firstColour+nColours; i++) { |
Pierre Ossman | b6b4dc6 | 2014-01-20 15:05:21 +0100 | [diff] [blame] | 67 | os->writeU16(red[i]); |
| 68 | os->writeU16(green[i]); |
| 69 | os->writeU16(blue[i]); |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 70 | } |
| 71 | endMsg(); |
| 72 | } |
| 73 | |
| 74 | void SMsgWriter::writeBell() |
| 75 | { |
| 76 | startMsg(msgTypeBell); |
| 77 | endMsg(); |
| 78 | } |
| 79 | |
| 80 | void SMsgWriter::writeServerCutText(const char* str, int len) |
| 81 | { |
| 82 | startMsg(msgTypeServerCutText); |
| 83 | os->pad(3); |
| 84 | os->writeU32(len); |
| 85 | os->writeBytes(str, len); |
| 86 | endMsg(); |
| 87 | } |
| 88 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 89 | void SMsgWriter::writeFence(rdr::U32 flags, unsigned len, const char data[]) |
| 90 | { |
| 91 | if (!cp->supportsFence) |
| 92 | throw Exception("Client does not support fences"); |
| 93 | if (len > 64) |
| 94 | throw Exception("Too large fence payload"); |
| 95 | if ((flags & ~fenceFlagsSupported) != 0) |
| 96 | throw Exception("Unknown fence flags"); |
| 97 | |
| 98 | startMsg(msgTypeServerFence); |
| 99 | os->pad(3); |
| 100 | |
| 101 | os->writeU32(flags); |
| 102 | |
| 103 | os->writeU8(len); |
Michal Srb | f3afa24 | 2017-03-27 19:02:15 +0300 | [diff] [blame] | 104 | |
| 105 | if (len > 0) |
| 106 | os->writeBytes(data, len); |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 107 | |
| 108 | endMsg(); |
| 109 | } |
| 110 | |
| 111 | void SMsgWriter::writeEndOfContinuousUpdates() |
| 112 | { |
| 113 | if (!cp->supportsContinuousUpdates) |
| 114 | throw Exception("Client does not support continuous updates"); |
| 115 | |
| 116 | startMsg(msgTypeEndOfContinuousUpdates); |
| 117 | endMsg(); |
| 118 | } |
| 119 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 120 | bool SMsgWriter::writeSetDesktopSize() { |
| 121 | if (!cp->supportsDesktopResize) |
| 122 | return false; |
| 123 | |
| 124 | needSetDesktopSize = true; |
| 125 | |
| 126 | return true; |
| 127 | } |
| 128 | |
| 129 | bool SMsgWriter::writeExtendedDesktopSize() { |
| 130 | if (!cp->supportsExtendedDesktopSize) |
| 131 | return false; |
| 132 | |
| 133 | needExtendedDesktopSize = true; |
| 134 | |
| 135 | return true; |
| 136 | } |
| 137 | |
| 138 | bool SMsgWriter::writeExtendedDesktopSize(rdr::U16 reason, rdr::U16 result, |
| 139 | int fb_width, int fb_height, |
| 140 | const ScreenSet& layout) { |
| 141 | ExtendedDesktopSizeMsg msg; |
| 142 | |
| 143 | if (!cp->supportsExtendedDesktopSize) |
| 144 | return false; |
| 145 | |
| 146 | msg.reason = reason; |
| 147 | msg.result = result; |
| 148 | msg.fb_width = fb_width; |
| 149 | msg.fb_height = fb_height; |
| 150 | msg.layout = layout; |
| 151 | |
| 152 | extendedDesktopSizeMsgs.push_back(msg); |
| 153 | |
| 154 | return true; |
| 155 | } |
| 156 | |
| 157 | bool SMsgWriter::writeSetDesktopName() { |
| 158 | if (!cp->supportsDesktopRename) |
| 159 | return false; |
| 160 | |
| 161 | needSetDesktopName = true; |
| 162 | |
| 163 | return true; |
| 164 | } |
| 165 | |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 166 | bool SMsgWriter::writeSetCursor() |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 167 | { |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 168 | if (!cp->supportsLocalCursor) |
| 169 | return false; |
| 170 | |
| 171 | needSetCursor = true; |
| 172 | |
| 173 | return true; |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 174 | } |
| 175 | |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 176 | bool SMsgWriter::writeSetXCursor() |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 177 | { |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 178 | if (!cp->supportsLocalXCursor) |
| 179 | return false; |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 180 | |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 181 | needSetXCursor = true; |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 182 | |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 183 | return true; |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 184 | } |
| 185 | |
Pierre Ossman | 8053c8e | 2017-02-21 12:59:04 +0100 | [diff] [blame] | 186 | bool SMsgWriter::writeSetCursorWithAlpha() |
| 187 | { |
| 188 | if (!cp->supportsLocalCursorWithAlpha) |
| 189 | return false; |
| 190 | |
| 191 | needSetCursorWithAlpha = true; |
| 192 | |
| 193 | return true; |
| 194 | } |
| 195 | |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 196 | bool SMsgWriter::needFakeUpdate() |
| 197 | { |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 198 | if (needSetDesktopName) |
| 199 | return true; |
Pierre Ossman | 8053c8e | 2017-02-21 12:59:04 +0100 | [diff] [blame] | 200 | if (needSetCursor || needSetXCursor || needSetCursorWithAlpha) |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 201 | return true; |
| 202 | if (needNoDataUpdate()) |
| 203 | return true; |
| 204 | |
| 205 | return false; |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 206 | } |
| 207 | |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 208 | bool SMsgWriter::needNoDataUpdate() |
| 209 | { |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 210 | if (needSetDesktopSize) |
| 211 | return true; |
| 212 | if (needExtendedDesktopSize || !extendedDesktopSizeMsgs.empty()) |
| 213 | return true; |
| 214 | |
| 215 | return false; |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | void SMsgWriter::writeNoDataUpdate() |
| 219 | { |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 220 | int nRects; |
| 221 | |
| 222 | nRects = 0; |
| 223 | |
| 224 | if (needSetDesktopSize) |
| 225 | nRects++; |
| 226 | if (needExtendedDesktopSize) |
| 227 | nRects++; |
| 228 | if (!extendedDesktopSizeMsgs.empty()) |
| 229 | nRects += extendedDesktopSizeMsgs.size(); |
| 230 | |
| 231 | writeFramebufferUpdateStart(nRects); |
| 232 | writeNoDataRects(); |
| 233 | writeFramebufferUpdateEnd(); |
Pierre Ossman | e9962f7 | 2009-04-23 12:31:42 +0000 | [diff] [blame] | 234 | } |
| 235 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 236 | void SMsgWriter::writeFramebufferUpdateStart(int nRects) |
| 237 | { |
| 238 | startMsg(msgTypeFramebufferUpdate); |
| 239 | os->pad(1); |
| 240 | |
| 241 | if (nRects != 0xFFFF) { |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 242 | if (needSetDesktopName) |
| 243 | nRects++; |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 244 | if (needSetCursor) |
| 245 | nRects++; |
| 246 | if (needSetXCursor) |
| 247 | nRects++; |
Pierre Ossman | 8053c8e | 2017-02-21 12:59:04 +0100 | [diff] [blame] | 248 | if (needSetCursorWithAlpha) |
| 249 | nRects++; |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 250 | } |
| 251 | |
| 252 | os->writeU16(nRects); |
| 253 | |
| 254 | nRectsInUpdate = 0; |
| 255 | if (nRects == 0xFFFF) |
| 256 | nRectsInHeader = 0; |
| 257 | else |
| 258 | nRectsInHeader = nRects; |
| 259 | |
| 260 | writePseudoRects(); |
| 261 | } |
| 262 | |
| 263 | void SMsgWriter::writeFramebufferUpdateEnd() |
| 264 | { |
| 265 | if (nRectsInUpdate != nRectsInHeader && nRectsInHeader) |
| 266 | throw Exception("SMsgWriter::writeFramebufferUpdateEnd: " |
| 267 | "nRects out of sync"); |
| 268 | |
| 269 | if (nRectsInHeader == 0) { |
| 270 | // Send last rect. marker |
| 271 | os->writeS16(0); |
| 272 | os->writeS16(0); |
| 273 | os->writeU16(0); |
| 274 | os->writeU16(0); |
| 275 | os->writeU32(pseudoEncodingLastRect); |
| 276 | } |
| 277 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 278 | endMsg(); |
| 279 | } |
| 280 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 281 | void SMsgWriter::writeCopyRect(const Rect& r, int srcX, int srcY) |
| 282 | { |
| 283 | startRect(r,encodingCopyRect); |
| 284 | os->writeU16(srcX); |
| 285 | os->writeU16(srcY); |
| 286 | endRect(); |
| 287 | } |
| 288 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 289 | void SMsgWriter::startRect(const Rect& r, int encoding) |
| 290 | { |
| 291 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 292 | throw Exception("SMsgWriter::startRect: nRects out of sync"); |
| 293 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 294 | os->writeS16(r.tl.x); |
| 295 | os->writeS16(r.tl.y); |
| 296 | os->writeU16(r.width()); |
| 297 | os->writeU16(r.height()); |
| 298 | os->writeU32(encoding); |
| 299 | } |
| 300 | |
| 301 | void SMsgWriter::endRect() |
| 302 | { |
Pierre Ossman | 3529468 | 2016-04-29 14:27:08 +0200 | [diff] [blame] | 303 | os->flush(); |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 304 | } |
| 305 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 306 | void SMsgWriter::startMsg(int type) |
| 307 | { |
| 308 | os->writeU8(type); |
| 309 | } |
| 310 | |
| 311 | void SMsgWriter::endMsg() |
| 312 | { |
| 313 | os->flush(); |
| 314 | } |
| 315 | |
| 316 | void SMsgWriter::writePseudoRects() |
| 317 | { |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 318 | if (needSetCursor) { |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 319 | const Cursor& cursor = cp->cursor(); |
| 320 | |
Pierre Ossman | 6a1a0d0 | 2017-02-19 15:48:17 +0100 | [diff] [blame] | 321 | rdr::U8Array data(cursor.width()*cursor.height() * cp->pf().bpp/8); |
| 322 | rdr::U8Array mask(cursor.getMask()); |
| 323 | |
| 324 | const rdr::U8* in; |
| 325 | rdr::U8* out; |
| 326 | |
| 327 | in = cursor.getBuffer(); |
| 328 | out = data.buf; |
| 329 | for (int i = 0;i < cursor.width()*cursor.height();i++) { |
| 330 | cp->pf().bufferFromRGB(out, in, 1); |
| 331 | in += 4; |
| 332 | out += cp->pf().bpp/8; |
| 333 | } |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 334 | |
| 335 | writeSetCursorRect(cursor.width(), cursor.height(), |
Pierre Ossman | 6a1a0d0 | 2017-02-19 15:48:17 +0100 | [diff] [blame] | 336 | cursor.hotspot().x, cursor.hotspot().y, |
| 337 | data.buf, mask.buf); |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 338 | needSetCursor = false; |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 339 | } |
| 340 | |
| 341 | if (needSetXCursor) { |
| 342 | const Cursor& cursor = cp->cursor(); |
Pierre Ossman | 6a1a0d0 | 2017-02-19 15:48:17 +0100 | [diff] [blame] | 343 | rdr::U8Array bitmap(cursor.getBitmap()); |
| 344 | rdr::U8Array mask(cursor.getMask()); |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 345 | |
| 346 | writeSetXCursorRect(cursor.width(), cursor.height(), |
Pierre Ossman | 6a1a0d0 | 2017-02-19 15:48:17 +0100 | [diff] [blame] | 347 | cursor.hotspot().x, cursor.hotspot().y, |
| 348 | bitmap.buf, mask.buf); |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 349 | needSetXCursor = false; |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 350 | } |
| 351 | |
Pierre Ossman | 8053c8e | 2017-02-21 12:59:04 +0100 | [diff] [blame] | 352 | if (needSetCursorWithAlpha) { |
| 353 | const Cursor& cursor = cp->cursor(); |
| 354 | |
| 355 | writeSetCursorWithAlphaRect(cursor.width(), cursor.height(), |
| 356 | cursor.hotspot().x, cursor.hotspot().y, |
| 357 | cursor.getBuffer()); |
| 358 | needSetCursorWithAlpha = false; |
| 359 | } |
| 360 | |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 361 | if (needSetDesktopName) { |
Pierre Ossman | c0b1aa0 | 2014-01-16 13:39:05 +0100 | [diff] [blame] | 362 | writeSetDesktopNameRect(cp->name()); |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 363 | needSetDesktopName = false; |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | void SMsgWriter::writeNoDataRects() |
| 368 | { |
| 369 | // Start with specific ExtendedDesktopSize messages |
| 370 | if (!extendedDesktopSizeMsgs.empty()) { |
| 371 | std::list<ExtendedDesktopSizeMsg>::const_iterator ri; |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 372 | |
| 373 | for (ri = extendedDesktopSizeMsgs.begin();ri != extendedDesktopSizeMsgs.end();++ri) { |
Pierre Ossman | c0b1aa0 | 2014-01-16 13:39:05 +0100 | [diff] [blame] | 374 | writeExtendedDesktopSizeRect(ri->reason, ri->result, |
| 375 | ri->fb_width, ri->fb_height, ri->layout); |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 376 | } |
| 377 | |
| 378 | extendedDesktopSizeMsgs.clear(); |
| 379 | } |
| 380 | |
| 381 | // Send this before SetDesktopSize to make life easier on the clients |
| 382 | if (needExtendedDesktopSize) { |
Pierre Ossman | c0b1aa0 | 2014-01-16 13:39:05 +0100 | [diff] [blame] | 383 | writeExtendedDesktopSizeRect(0, 0, cp->width, cp->height, |
| 384 | cp->screenLayout); |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 385 | needExtendedDesktopSize = false; |
| 386 | } |
| 387 | |
| 388 | // Some clients assume this is the last rectangle so don't send anything |
| 389 | // more after this |
| 390 | if (needSetDesktopSize) { |
Pierre Ossman | c0b1aa0 | 2014-01-16 13:39:05 +0100 | [diff] [blame] | 391 | writeSetDesktopSizeRect(cp->width, cp->height); |
Pierre Ossman | 7638e9c | 2014-01-16 13:12:40 +0100 | [diff] [blame] | 392 | needSetDesktopSize = false; |
| 393 | } |
| 394 | } |
Pierre Ossman | c0b1aa0 | 2014-01-16 13:39:05 +0100 | [diff] [blame] | 395 | |
| 396 | void SMsgWriter::writeSetDesktopSizeRect(int width, int height) |
| 397 | { |
| 398 | if (!cp->supportsDesktopResize) |
| 399 | throw Exception("Client does not support desktop resize"); |
| 400 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 401 | throw Exception("SMsgWriter::writeSetDesktopSizeRect: nRects out of sync"); |
| 402 | |
| 403 | os->writeS16(0); |
| 404 | os->writeS16(0); |
| 405 | os->writeU16(width); |
| 406 | os->writeU16(height); |
| 407 | os->writeU32(pseudoEncodingDesktopSize); |
| 408 | } |
| 409 | |
| 410 | void SMsgWriter::writeExtendedDesktopSizeRect(rdr::U16 reason, |
| 411 | rdr::U16 result, |
| 412 | int fb_width, |
| 413 | int fb_height, |
| 414 | const ScreenSet& layout) |
| 415 | { |
| 416 | ScreenSet::const_iterator si; |
| 417 | |
| 418 | if (!cp->supportsExtendedDesktopSize) |
| 419 | throw Exception("Client does not support extended desktop resize"); |
| 420 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 421 | throw Exception("SMsgWriter::writeExtendedDesktopSizeRect: nRects out of sync"); |
| 422 | |
| 423 | os->writeU16(reason); |
| 424 | os->writeU16(result); |
| 425 | os->writeU16(fb_width); |
| 426 | os->writeU16(fb_height); |
| 427 | os->writeU32(pseudoEncodingExtendedDesktopSize); |
| 428 | |
| 429 | os->writeU8(layout.num_screens()); |
| 430 | os->pad(3); |
| 431 | |
| 432 | for (si = layout.begin();si != layout.end();++si) { |
| 433 | os->writeU32(si->id); |
| 434 | os->writeU16(si->dimensions.tl.x); |
| 435 | os->writeU16(si->dimensions.tl.y); |
| 436 | os->writeU16(si->dimensions.width()); |
| 437 | os->writeU16(si->dimensions.height()); |
| 438 | os->writeU32(si->flags); |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | void SMsgWriter::writeSetDesktopNameRect(const char *name) |
| 443 | { |
| 444 | if (!cp->supportsDesktopRename) |
| 445 | throw Exception("Client does not support desktop rename"); |
| 446 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 447 | throw Exception("SMsgWriter::writeSetDesktopNameRect: nRects out of sync"); |
| 448 | |
| 449 | os->writeS16(0); |
| 450 | os->writeS16(0); |
| 451 | os->writeU16(0); |
| 452 | os->writeU16(0); |
| 453 | os->writeU32(pseudoEncodingDesktopName); |
| 454 | os->writeString(name); |
| 455 | } |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 456 | |
| 457 | void SMsgWriter::writeSetCursorRect(int width, int height, |
| 458 | int hotspotX, int hotspotY, |
| 459 | const void* data, const void* mask) |
| 460 | { |
| 461 | if (!cp->supportsLocalCursor) |
| 462 | throw Exception("Client does not support local cursors"); |
| 463 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 464 | throw Exception("SMsgWriter::writeSetCursorRect: nRects out of sync"); |
| 465 | |
| 466 | os->writeS16(hotspotX); |
| 467 | os->writeS16(hotspotY); |
| 468 | os->writeU16(width); |
| 469 | os->writeU16(height); |
| 470 | os->writeU32(pseudoEncodingCursor); |
| 471 | os->writeBytes(data, width * height * (cp->pf().bpp/8)); |
| 472 | os->writeBytes(mask, (width+7)/8 * height); |
| 473 | } |
| 474 | |
| 475 | void SMsgWriter::writeSetXCursorRect(int width, int height, |
| 476 | int hotspotX, int hotspotY, |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 477 | const void* data, const void* mask) |
| 478 | { |
| 479 | if (!cp->supportsLocalXCursor) |
| 480 | throw Exception("Client does not support local cursors"); |
| 481 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 482 | throw Exception("SMsgWriter::writeSetXCursorRect: nRects out of sync"); |
| 483 | |
| 484 | os->writeS16(hotspotX); |
| 485 | os->writeS16(hotspotY); |
| 486 | os->writeU16(width); |
| 487 | os->writeU16(height); |
| 488 | os->writeU32(pseudoEncodingXCursor); |
| 489 | if (width * height) { |
Pierre Ossman | 6a1a0d0 | 2017-02-19 15:48:17 +0100 | [diff] [blame] | 490 | os->writeU8(255); |
| 491 | os->writeU8(255); |
| 492 | os->writeU8(255); |
| 493 | os->writeU8(0); |
| 494 | os->writeU8(0); |
| 495 | os->writeU8(0); |
Pierre Ossman | 126e564 | 2014-02-13 14:40:25 +0100 | [diff] [blame] | 496 | os->writeBytes(data, (width+7)/8 * height); |
| 497 | os->writeBytes(mask, (width+7)/8 * height); |
| 498 | } |
| 499 | } |
Pierre Ossman | 8053c8e | 2017-02-21 12:59:04 +0100 | [diff] [blame] | 500 | |
| 501 | void SMsgWriter::writeSetCursorWithAlphaRect(int width, int height, |
| 502 | int hotspotX, int hotspotY, |
| 503 | const rdr::U8* data) |
| 504 | { |
| 505 | if (!cp->supportsLocalCursorWithAlpha) |
| 506 | throw Exception("Client does not support local cursors"); |
| 507 | if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader) |
| 508 | throw Exception("SMsgWriter::writeSetCursorWithAlphaRect: nRects out of sync"); |
| 509 | |
| 510 | os->writeS16(hotspotX); |
| 511 | os->writeS16(hotspotY); |
| 512 | os->writeU16(width); |
| 513 | os->writeU16(height); |
| 514 | os->writeU32(pseudoEncodingCursorWithAlpha); |
| 515 | |
| 516 | // FIXME: Use an encoder with compression? |
| 517 | os->writeU32(encodingRaw); |
| 518 | |
| 519 | // Alpha needs to be pre-multiplied |
| 520 | for (int i = 0;i < width*height;i++) { |
| 521 | os->writeU8((unsigned)data[0] * data[3] / 255); |
| 522 | os->writeU8((unsigned)data[1] * data[3] / 255); |
| 523 | os->writeU8((unsigned)data[2] * data[3] / 255); |
| 524 | os->writeU8(data[3]); |
| 525 | data += 4; |
| 526 | } |
| 527 | } |