Mercurial > hg > Members > nobuyasu > tightVNCProxy
annotate src/VncCanvas.java @ 13:a5d73cafc8fe
add ProxyVncCanvas and VncProxyService
| author | e085711 |
|---|---|
| date | Sun, 17 Apr 2011 01:50:24 +0900 |
| parents | 2869ca1579ae |
| children | 89e1c5f84407 |
| rev | line source |
|---|---|
| 0 | 1 // |
| 2 // Copyright (C) 2004 Horizon Wimba. All Rights Reserved. | |
| 3 // Copyright (C) 2001-2003 HorizonLive.com, Inc. All Rights Reserved. | |
| 4 // Copyright (C) 2001,2002 Constantin Kaplinsky. All Rights Reserved. | |
| 5 // Copyright (C) 2000 Tridia Corporation. All Rights Reserved. | |
| 6 // Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. | |
| 7 // | |
| 8 // This is free software; you can redistribute it and/or modify | |
| 9 // it under the terms of the GNU General Public License as published by | |
| 10 // the Free Software Foundation; either version 2 of the License, or | |
| 11 // (at your option) any later version. | |
| 12 // | |
| 13 // This software is distributed in the hope that it will be useful, | |
| 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 // GNU General Public License for more details. | |
| 17 // | |
| 18 // You should have received a copy of the GNU General Public License | |
| 19 // along with this software; if not, write to the Free Software | |
| 20 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
| 21 // USA. | |
| 22 // | |
| 23 | |
| 24 import java.awt.*; | |
| 25 import java.awt.event.*; | |
| 26 import java.awt.image.*; | |
| 27 import java.io.*; | |
| 28 import java.lang.*; | |
| 29 import java.nio.ByteBuffer; | |
| 30 import java.util.zip.*; | |
| 31 | |
| 11 | 32 import java.net.Socket; |
| 33 | |
| 0 | 34 // |
| 35 // VncCanvas is a subclass of Canvas which draws a VNC desktop on it. | |
| 36 // | |
| 37 | |
| 4 | 38 class VncCanvas extends Canvas implements KeyListener, MouseListener, |
| 39 MouseMotionListener { | |
| 0 | 40 |
| 4 | 41 VncViewer viewer; |
| 8 | 42 MyRfbProto rfb; |
| 4 | 43 ColorModel cm8, cm24; |
| 44 Color[] colors; | |
| 45 int bytesPixel; | |
| 0 | 46 |
| 4 | 47 int maxWidth = 0, maxHeight = 0; |
| 48 int scalingFactor; | |
| 49 int scaledWidth, scaledHeight; | |
| 0 | 50 |
| 4 | 51 Image memImage; |
| 52 Graphics memGraphics; | |
| 0 | 53 |
| 4 | 54 Image rawPixelsImage; |
| 55 MemoryImageSource pixelsSource; | |
| 56 byte[] pixels8; | |
| 57 int[] pixels24; | |
| 0 | 58 |
| 4 | 59 // Update statistics. |
| 60 long statStartTime; // time on first framebufferUpdateRequest | |
| 61 int statNumUpdates; // counter for FramebufferUpdate messages | |
| 62 int statNumTotalRects; // rectangles in FramebufferUpdate messages | |
| 63 int statNumPixelRects; // the same, but excluding pseudo-rectangles | |
| 64 int statNumRectsTight; // Tight-encoded rectangles (including JPEG) | |
| 65 int statNumRectsTightJPEG; // JPEG-compressed Tight-encoded rectangles | |
| 66 int statNumRectsZRLE; // ZRLE-encoded rectangles | |
| 67 int statNumRectsHextile; // Hextile-encoded rectangles | |
| 68 int statNumRectsRaw; // Raw-encoded rectangles | |
| 69 int statNumRectsCopy; // CopyRect rectangles | |
| 70 int statNumBytesEncoded; // number of bytes in updates, as received | |
| 71 int statNumBytesDecoded; // number of bytes, as if Raw encoding was used | |
| 0 | 72 |
| 4 | 73 // ZRLE encoder's data. |
| 74 byte[] zrleBuf; | |
| 75 int zrleBufLen = 0; | |
| 76 byte[] zrleTilePixels8; | |
| 77 int[] zrleTilePixels24; | |
| 78 ZlibInStream zrleInStream; | |
| 79 boolean zrleRecWarningShown = false; | |
| 0 | 80 |
| 4 | 81 // Zlib encoder's data. |
| 82 byte[] zlibBuf; | |
| 83 int zlibBufLen = 0; | |
| 84 Inflater zlibInflater; | |
| 0 | 85 |
| 4 | 86 // Tight encoder's data. |
| 87 final static int tightZlibBufferSize = 512; | |
| 88 Inflater[] tightInflaters; | |
| 0 | 89 |
| 4 | 90 // Since JPEG images are loaded asynchronously, we have to remember |
| 91 // their position in the framebuffer. Also, this jpegRect object is | |
| 92 // used for synchronization between the rfbThread and a JVM's thread | |
| 93 // which decodes and loads JPEG images. | |
| 94 Rectangle jpegRect; | |
| 0 | 95 |
| 4 | 96 // True if we process keyboard and mouse events. |
| 97 boolean inputEnabled; | |
| 0 | 98 |
| 4 | 99 // |
| 100 // The constructors. | |
| 101 // | |
| 0 | 102 |
| 4 | 103 public VncCanvas(VncViewer v, int maxWidth_, int maxHeight_) |
| 104 throws IOException { | |
| 0 | 105 |
| 4 | 106 viewer = v; |
| 107 maxWidth = maxWidth_; | |
| 108 maxHeight = maxHeight_; | |
| 0 | 109 |
| 4 | 110 rfb = viewer.rfb; |
| 111 scalingFactor = viewer.options.scalingFactor; | |
| 112 | |
| 113 tightInflaters = new Inflater[4]; | |
| 0 | 114 |
| 4 | 115 cm8 = new DirectColorModel(8, 7, (7 << 3), (3 << 6)); |
| 116 cm24 = new DirectColorModel(24, 0xFF0000, 0x00FF00, 0x0000FF); | |
| 0 | 117 |
| 4 | 118 colors = new Color[256]; |
| 119 for (int i = 0; i < 256; i++) | |
| 120 colors[i] = new Color(cm8.getRGB(i)); | |
| 121 | |
| 122 setPixelFormat(); | |
| 0 | 123 |
| 4 | 124 inputEnabled = false; |
| 125 if (!viewer.options.viewOnly) | |
| 126 enableInput(true); | |
| 127 | |
| 128 // Keyboard listener is enabled even in view-only mode, to catch | |
| 129 // 'r' or 'R' key presses used to request screen update. | |
| 130 addKeyListener(this); | |
| 0 | 131 } |
| 4 | 132 |
| 133 public VncCanvas(VncViewer v) throws IOException { | |
| 134 this(v, 0, 0); | |
| 135 } | |
| 0 | 136 |
| 4 | 137 // |
| 138 // Callback methods to determine geometry of our Component. | |
| 139 // | |
| 140 | |
| 141 public Dimension getPreferredSize() { | |
| 142 return new Dimension(scaledWidth, scaledHeight); | |
| 143 } | |
| 0 | 144 |
| 4 | 145 public Dimension getMinimumSize() { |
| 146 return new Dimension(scaledWidth, scaledHeight); | |
| 147 } | |
| 148 | |
| 149 public Dimension getMaximumSize() { | |
| 150 return new Dimension(scaledWidth, scaledHeight); | |
| 151 } | |
| 0 | 152 |
| 4 | 153 // |
| 154 // All painting is performed here. | |
| 155 // | |
| 0 | 156 |
| 4 | 157 public void update(Graphics g) { |
| 158 paint(g); | |
| 159 } | |
| 0 | 160 |
| 4 | 161 public void paint(Graphics g) { |
| 162 synchronized (memImage) { | |
| 163 if (rfb.framebufferWidth == scaledWidth) { | |
| 164 g.drawImage(memImage, 0, 0, null); | |
| 165 } else { | |
| 166 paintScaledFrameBuffer(g); | |
| 167 } | |
| 168 } | |
| 169 if (showSoftCursor) { | |
| 170 int x0 = cursorX - hotX, y0 = cursorY - hotY; | |
| 171 Rectangle r = new Rectangle(x0, y0, cursorWidth, cursorHeight); | |
| 172 if (r.intersects(g.getClipBounds())) { | |
| 173 g.drawImage(softCursor, x0, y0, null); | |
| 174 } | |
| 175 } | |
| 176 } | |
| 0 | 177 |
| 4 | 178 public void paintScaledFrameBuffer(Graphics g) { |
| 179 g.drawImage(memImage, 0, 0, scaledWidth, scaledHeight, null); | |
| 180 } | |
| 0 | 181 |
| 4 | 182 // |
| 183 // Override the ImageObserver interface method to handle drawing of | |
| 184 // JPEG-encoded data. | |
| 185 // | |
| 0 | 186 |
| 4 | 187 public boolean imageUpdate(Image img, int infoflags, int x, int y, |
| 188 int width, int height) { | |
| 189 if ((infoflags & (ALLBITS | ABORT)) == 0) { | |
| 190 return true; // We need more image data. | |
| 191 } else { | |
| 192 // If the whole image is available, draw it now. | |
| 193 if ((infoflags & ALLBITS) != 0) { | |
| 194 if (jpegRect != null) { | |
| 195 synchronized (jpegRect) { | |
| 196 memGraphics | |
| 197 .drawImage(img, jpegRect.x, jpegRect.y, null); | |
| 198 scheduleRepaint(jpegRect.x, jpegRect.y, jpegRect.width, | |
| 199 jpegRect.height); | |
| 200 jpegRect.notify(); | |
| 201 } | |
| 202 } | |
| 203 } | |
| 204 return false; // All image data was processed. | |
| 205 } | |
| 206 } | |
| 0 | 207 |
| 4 | 208 // |
| 209 // Start/stop receiving mouse events. Keyboard events are received | |
| 210 // even in view-only mode, because we want to map the 'r' key to the | |
| 211 // screen refreshing function. | |
| 212 // | |
| 0 | 213 |
| 4 | 214 public synchronized void enableInput(boolean enable) { |
| 215 if (enable && !inputEnabled) { | |
| 216 inputEnabled = true; | |
| 217 addMouseListener(this); | |
| 218 addMouseMotionListener(this); | |
| 219 if (viewer.showControls) { | |
| 220 viewer.buttonPanel.enableRemoteAccessControls(true); | |
| 221 } | |
| 222 createSoftCursor(); // scaled cursor | |
| 223 } else if (!enable && inputEnabled) { | |
| 224 inputEnabled = false; | |
| 225 removeMouseListener(this); | |
| 226 removeMouseMotionListener(this); | |
| 227 if (viewer.showControls) { | |
| 228 viewer.buttonPanel.enableRemoteAccessControls(false); | |
| 229 } | |
| 230 createSoftCursor(); // non-scaled cursor | |
| 231 } | |
| 232 } | |
| 0 | 233 |
| 4 | 234 public void setPixelFormat() throws IOException { |
| 235 if (viewer.options.eightBitColors) { | |
| 236 rfb.writeSetPixelFormat(8, 8, false, true, 7, 7, 3, 0, 3, 6); | |
| 237 bytesPixel = 1; | |
| 238 } else { | |
| 239 rfb.writeSetPixelFormat(32, 24, false, true, 255, 255, 255, 16, 8, | |
| 240 0); | |
| 241 bytesPixel = 4; | |
| 242 } | |
| 243 updateFramebufferSize(); | |
| 244 } | |
| 0 | 245 |
| 4 | 246 void updateFramebufferSize() { |
| 0 | 247 |
| 4 | 248 // Useful shortcuts. |
| 249 int fbWidth = rfb.framebufferWidth; | |
| 250 int fbHeight = rfb.framebufferHeight; | |
| 0 | 251 |
| 4 | 252 // Calculate scaling factor for auto scaling. |
| 253 if (maxWidth > 0 && maxHeight > 0) { | |
| 254 int f1 = maxWidth * 100 / fbWidth; | |
| 255 int f2 = maxHeight * 100 / fbHeight; | |
| 256 scalingFactor = Math.min(f1, f2); | |
| 257 if (scalingFactor > 100) | |
| 258 scalingFactor = 100; | |
| 259 System.out.println("Scaling desktop at " + scalingFactor + "%"); | |
| 260 } | |
| 0 | 261 |
| 4 | 262 // Update scaled framebuffer geometry. |
| 263 scaledWidth = (fbWidth * scalingFactor + 50) / 100; | |
| 264 scaledHeight = (fbHeight * scalingFactor + 50) / 100; | |
| 0 | 265 |
| 4 | 266 // Create new off-screen image either if it does not exist, or if |
| 267 // its geometry should be changed. It's not necessary to replace | |
| 268 // existing image if only pixel format should be changed. | |
| 269 if (memImage == null) { | |
| 270 memImage = viewer.vncContainer.createImage(fbWidth, fbHeight); | |
| 271 memGraphics = memImage.getGraphics(); | |
| 272 } else if (memImage.getWidth(null) != fbWidth | |
| 273 || memImage.getHeight(null) != fbHeight) { | |
| 274 synchronized (memImage) { | |
| 275 memImage = viewer.vncContainer.createImage(fbWidth, fbHeight); | |
| 276 memGraphics = memImage.getGraphics(); | |
| 277 } | |
| 278 } | |
| 0 | 279 |
| 4 | 280 // Images with raw pixels should be re-allocated on every change |
| 281 // of geometry or pixel format. | |
| 282 if (bytesPixel == 1) { | |
| 0 | 283 |
| 4 | 284 pixels24 = null; |
| 285 pixels8 = new byte[fbWidth * fbHeight]; | |
| 286 | |
| 287 pixelsSource = new MemoryImageSource(fbWidth, fbHeight, cm8, | |
| 288 pixels8, 0, fbWidth); | |
| 289 | |
| 290 zrleTilePixels24 = null; | |
| 291 zrleTilePixels8 = new byte[64 * 64]; | |
| 0 | 292 |
| 4 | 293 } else { |
| 0 | 294 |
| 4 | 295 pixels8 = null; |
| 296 pixels24 = new int[fbWidth * fbHeight]; | |
| 0 | 297 |
| 4 | 298 pixelsSource = new MemoryImageSource(fbWidth, fbHeight, cm24, |
| 299 pixels24, 0, fbWidth); | |
| 0 | 300 |
| 4 | 301 zrleTilePixels8 = null; |
| 302 zrleTilePixels24 = new int[64 * 64]; | |
| 0 | 303 |
| 304 } | |
| 4 | 305 pixelsSource.setAnimated(true); |
| 306 rawPixelsImage = Toolkit.getDefaultToolkit().createImage(pixelsSource); | |
| 0 | 307 |
| 4 | 308 // Update the size of desktop containers. |
| 309 if (viewer.inSeparateFrame) { | |
| 310 if (viewer.desktopScrollPane != null) | |
| 311 resizeDesktopFrame(); | |
| 312 } else { | |
| 313 setSize(scaledWidth, scaledHeight); | |
| 314 } | |
| 315 viewer.moveFocusToDesktop(); | |
| 316 } | |
| 0 | 317 |
| 4 | 318 void resizeDesktopFrame() { |
| 319 setSize(scaledWidth, scaledHeight); | |
| 0 | 320 |
| 4 | 321 // FIXME: Find a better way to determine correct size of a |
| 322 // ScrollPane. -- const | |
| 323 Insets insets = viewer.desktopScrollPane.getInsets(); | |
| 324 viewer.desktopScrollPane.setSize( | |
| 325 scaledWidth + 2 * Math.min(insets.left, insets.right), | |
| 326 scaledHeight + 2 * Math.min(insets.top, insets.bottom)); | |
| 0 | 327 |
| 4 | 328 viewer.vncFrame.pack(); |
| 0 | 329 |
| 4 | 330 // Try to limit the frame size to the screen size. |
| 0 | 331 |
| 4 | 332 Dimension screenSize = viewer.vncFrame.getToolkit().getScreenSize(); |
| 333 Dimension frameSize = viewer.vncFrame.getSize(); | |
| 334 Dimension newSize = frameSize; | |
| 335 | |
| 336 // Reduce Screen Size by 30 pixels in each direction; | |
| 337 // This is a (poor) attempt to account for | |
| 338 // 1) Menu bar on Macintosh (should really also account for | |
| 339 // Dock on OSX). Usually 22px on top of screen. | |
| 340 // 2) Taxkbar on Windows (usually about 28 px on bottom) | |
| 341 // 3) Other obstructions. | |
| 342 | |
| 343 screenSize.height -= 30; | |
| 344 screenSize.width -= 30; | |
| 0 | 345 |
| 4 | 346 boolean needToResizeFrame = false; |
| 347 if (frameSize.height > screenSize.height) { | |
| 348 newSize.height = screenSize.height; | |
| 349 needToResizeFrame = true; | |
| 350 } | |
| 351 if (frameSize.width > screenSize.width) { | |
| 352 newSize.width = screenSize.width; | |
| 353 needToResizeFrame = true; | |
| 354 } | |
| 355 if (needToResizeFrame) { | |
| 356 viewer.vncFrame.setSize(newSize); | |
| 357 } | |
| 0 | 358 |
| 4 | 359 viewer.desktopScrollPane.doLayout(); |
| 0 | 360 } |
| 361 | |
| 4 | 362 // |
| 363 // processNormalProtocol() - executed by the rfbThread to deal with the | |
| 364 // RFB socket. | |
| 365 // | |
| 366 | |
| 367 public void processNormalProtocol() throws Exception { | |
| 368 | |
| 369 // Start/stop session recording if necessary. | |
| 370 viewer.checkRecordingStatus(); | |
| 371 | |
| 372 rfb.writeFramebufferUpdateRequest(0, 0, rfb.framebufferWidth, | |
| 373 rfb.framebufferHeight, false); | |
| 374 | |
| 375 resetStats(); | |
| 376 boolean statsRestarted = false; | |
| 377 | |
| 378 // | |
| 379 // main dispatch loop | |
| 380 // | |
| 381 | |
| 382 long count = 0; | |
| 13 | 383 rfb.initServSock(5550); |
| 11 | 384 try { |
| 13 | 385 // rfb.setSoTimeout(1000); |
| 386 Socket newCli = rfb.accept(); | |
| 387 rfb.sendInitData(newCli); | |
| 388 rfb.addSock(newCli); | |
| 389 } catch (IOException e) { | |
| 11 | 390 } |
| 13 | 391 /* |
| 392 * Thread accept = new Thread(new acceptThread(rfb)); accept.start(); | |
| 393 */ | |
| 394 while (true) { | |
| 11 | 395 |
| 4 | 396 if (rfb.MYVNC) { |
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397 if (rfb.cliSize() > 0) { |
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398 System.out.println("\ncount=" + count); |
| 6 | 399 |
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400 int nBytes = 0; |
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401 rfb.mark(20); |
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402 int msgType = rfb.readU8(); |
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403 System.out.println("msgType=" + msgType); |
| 6 | 404 |
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405 rfb.skipBytes(11); |
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406 int encoding = rfb.readU32(); |
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407 System.out.println("encoding=" + encoding); |
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408 nBytes = rfb.readU32(); |
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409 System.out.println("nBytes=" + nBytes); |
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410 rfb.reset(); |
| 4 | 411 |
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412 int len = rfb.available(); |
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413 System.out.println("rfb.available()=" + len); |
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414 if (len > 0) { |
| 4 | 415 |
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416 if (nBytes > 0 & encoding == 16) {// 0より大きい（データがある）ときデータを転送 |
| 4 | 417 |
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418 rfb.mark(nBytes + 20); |
| 4 | 419 |
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420 byte b[] = new byte[nBytes + 20]; |
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421 // byte b[] = new byte[18+rfb.rnBytes]; |
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422 System.out.println("b.length=" + b.length); |
| 4 | 423 |
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424 rfb.readFully(b); |
| 4 | 425 |
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426 // rfb.cliSock.getOutputStream().write(b, 0, |
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427 // b.length); |
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428 rfb.sendData(b); |
| 0 | 429 |
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430 try { |
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431 rfb.reset(); |
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432 } catch (IOException e) { |
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433 System.out.println(e); |
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434 } |
| 4 | 435 } |
| 436 } | |
| 437 } | |
| 438 } | |
| 439 count++; | |
| 440 | |
| 441 // Read message type from the server. | |
| 442 int msgType = rfb.readServerMessageType(); | |
| 443 | |
| 444 // Process the message depending on its type. | |
| 445 switch (msgType) { | |
| 446 case RfbProto.FramebufferUpdate: | |
| 447 | |
| 448 if (statNumUpdates == viewer.debugStatsExcludeUpdates | |
| 449 && !statsRestarted) { | |
| 450 resetStats(); | |
| 451 statsRestarted = true; | |
| 452 } else if (statNumUpdates == viewer.debugStatsMeasureUpdates | |
| 453 && statsRestarted) { | |
| 454 viewer.disconnect(); | |
| 455 } | |
| 456 | |
| 457 rfb.readFramebufferUpdate(); | |
| 458 statNumUpdates++; | |
| 459 | |
| 460 boolean cursorPosReceived = false; | |
| 461 | |
| 462 for (int i = 0; i < rfb.updateNRects; i++) { | |
| 463 | |
| 464 rfb.readFramebufferUpdateRectHdr(); | |
| 465 statNumTotalRects++; | |
| 466 int rx = rfb.updateRectX, ry = rfb.updateRectY; | |
| 467 int rw = rfb.updateRectW, rh = rfb.updateRectH; | |
| 468 | |
| 469 if (rfb.updateRectEncoding == rfb.EncodingLastRect) | |
| 470 break; | |
| 471 | |
| 472 if (rfb.updateRectEncoding == rfb.EncodingNewFBSize) { | |
| 473 rfb.setFramebufferSize(rw, rh); | |
| 474 updateFramebufferSize(); | |
| 475 break; | |
| 476 } | |
| 477 | |
| 478 if (rfb.updateRectEncoding == rfb.EncodingXCursor | |
| 479 || rfb.updateRectEncoding == rfb.EncodingRichCursor) { | |
| 480 handleCursorShapeUpdate(rfb.updateRectEncoding, rx, ry, | |
| 481 rw, rh); | |
| 482 continue; | |
| 483 } | |
| 484 | |
| 485 if (rfb.updateRectEncoding == rfb.EncodingPointerPos) { | |
| 486 softCursorMove(rx, ry); | |
| 487 cursorPosReceived = true; | |
| 488 continue; | |
| 489 } | |
| 490 | |
| 491 long numBytesReadBefore = rfb.getNumBytesRead(); | |
| 492 | |
| 493 rfb.startTiming(); | |
| 0 | 494 |
| 4 | 495 switch (rfb.updateRectEncoding) { |
| 496 case RfbProto.EncodingRaw: | |
| 497 statNumRectsRaw++; | |
| 498 handleRawRect(rx, ry, rw, rh); | |
| 499 break; | |
| 500 case RfbProto.EncodingCopyRect: | |
| 501 statNumRectsCopy++; | |
| 502 handleCopyRect(rx, ry, rw, rh); | |
| 503 break; | |
| 504 case RfbProto.EncodingRRE: | |
| 505 handleRRERect(rx, ry, rw, rh); | |
| 506 break; | |
| 507 case RfbProto.EncodingCoRRE: | |
| 508 handleCoRRERect(rx, ry, rw, rh); | |
| 509 break; | |
| 510 case RfbProto.EncodingHextile: | |
| 511 statNumRectsHextile++; | |
| 512 handleHextileRect(rx, ry, rw, rh); | |
| 513 break; | |
| 514 case RfbProto.EncodingZRLE: | |
| 515 statNumRectsZRLE++; | |
| 516 handleZRLERect(rx, ry, rw, rh); | |
| 517 break; | |
| 518 case RfbProto.EncodingZlib: | |
| 519 handleZlibRect(rx, ry, rw, rh); | |
| 520 break; | |
| 521 case RfbProto.EncodingTight: | |
| 522 statNumRectsTight++; | |
| 523 handleTightRect(rx, ry, rw, rh); | |
| 524 break; | |
| 525 default: | |
| 526 throw new Exception("Unknown RFB rectangle encoding " | |
| 527 + rfb.updateRectEncoding); | |
| 528 } | |
| 529 | |
| 530 rfb.stopTiming(); | |
| 531 | |
| 532 statNumPixelRects++; | |
| 533 statNumBytesDecoded += rw * rh * bytesPixel; | |
| 534 statNumBytesEncoded += (int) (rfb.getNumBytesRead() - numBytesReadBefore); | |
| 535 } | |
| 536 | |
| 537 boolean fullUpdateNeeded = false; | |
| 538 | |
| 539 // Start/stop session recording if necessary. Request full | |
| 540 // update if a new session file was opened. | |
| 541 if (viewer.checkRecordingStatus()) | |
| 542 fullUpdateNeeded = true; | |
| 543 | |
| 544 // Defer framebuffer update request if necessary. But wake up | |
| 545 // immediately on keyboard or mouse event. Also, don't sleep | |
| 546 // if there is some data to receive, or if the last update | |
| 547 // included a PointerPos message. | |
| 548 if (viewer.deferUpdateRequests > 0 && rfb.available() == 0 | |
| 549 && !cursorPosReceived) { | |
| 550 synchronized (rfb) { | |
| 551 try { | |
| 552 rfb.wait(viewer.deferUpdateRequests); | |
| 553 } catch (InterruptedException e) { | |
| 554 } | |
| 555 } | |
| 556 } | |
| 557 | |
| 558 viewer.autoSelectEncodings(); | |
| 559 | |
| 560 // Before requesting framebuffer update, check if the pixel | |
| 561 // format should be changed. | |
| 562 if (viewer.options.eightBitColors != (bytesPixel == 1)) { | |
| 563 // Pixel format should be changed. | |
| 564 setPixelFormat(); | |
| 565 fullUpdateNeeded = true; | |
| 566 } | |
| 567 | |
| 568 // Request framebuffer update if needed. | |
| 569 int w = rfb.framebufferWidth; | |
| 570 int h = rfb.framebufferHeight; | |
| 571 rfb.writeFramebufferUpdateRequest(0, 0, w, h, !fullUpdateNeeded); | |
| 572 | |
| 573 break; | |
| 574 | |
| 575 case RfbProto.SetColourMapEntries: | |
| 576 throw new Exception("Can't handle SetColourMapEntries message"); | |
| 577 | |
| 578 case RfbProto.Bell: | |
| 579 Toolkit.getDefaultToolkit().beep(); | |
| 580 break; | |
| 581 | |
| 582 case RfbProto.ServerCutText: | |
| 583 String s = rfb.readServerCutText(); | |
| 584 viewer.clipboard.setCutText(s); | |
| 585 break; | |
| 586 | |
| 587 default: | |
| 588 throw new Exception("Unknown RFB message type " + msgType); | |
| 589 } | |
| 590 | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 // | |
| 595 // Handle a raw rectangle. The second form with paint==false is used | |
| 596 // by the Hextile decoder for raw-encoded tiles. | |
| 597 // | |
| 598 | |
| 599 void handleRawRect(int x, int y, int w, int h) throws IOException { | |
| 600 handleRawRect(x, y, w, h, true); | |
| 601 } | |
| 602 | |
| 603 void handleRawRect(int x, int y, int w, int h, boolean paint) | |
| 604 throws IOException { | |
| 605 | |
| 606 if (bytesPixel == 1) { | |
| 607 for (int dy = y; dy < y + h; dy++) { | |
| 608 rfb.readFully(pixels8, dy * rfb.framebufferWidth + x, w); | |
| 609 if (rfb.rec != null) { | |
| 610 rfb.rec.write(pixels8, dy * rfb.framebufferWidth + x, w); | |
| 611 } | |
| 612 } | |
| 613 } else { | |
| 614 byte[] buf = new byte[w * 4]; | |
| 615 int i, offset; | |
| 616 for (int dy = y; dy < y + h; dy++) { | |
| 617 rfb.readFully(buf); | |
| 618 if (rfb.rec != null) { | |
| 619 rfb.rec.write(buf); | |
| 620 } | |
| 621 offset = dy * rfb.framebufferWidth + x; | |
| 622 for (i = 0; i < w; i++) { | |
| 623 pixels24[offset + i] = (buf[i * 4 + 2] & 0xFF) << 16 | |
| 624 | (buf[i * 4 + 1] & 0xFF) << 8 | |
| 625 | (buf[i * 4] & 0xFF); | |
| 626 } | |
| 627 } | |
| 628 } | |
| 629 | |
| 630 handleUpdatedPixels(x, y, w, h); | |
| 631 if (paint) | |
| 632 scheduleRepaint(x, y, w, h); | |
| 633 } | |
| 634 | |
| 635 // | |
| 636 // Handle a CopyRect rectangle. | |
| 637 // | |
| 638 | |
| 639 void handleCopyRect(int x, int y, int w, int h) throws IOException { | |
| 640 | |
| 641 rfb.readCopyRect(); | |
| 642 memGraphics.copyArea(rfb.copyRectSrcX, rfb.copyRectSrcY, w, h, x | |
| 643 - rfb.copyRectSrcX, y - rfb.copyRectSrcY); | |
| 644 | |
| 645 scheduleRepaint(x, y, w, h); | |
| 0 | 646 } |
| 647 | |
| 4 | 648 // |
| 649 // Handle an RRE-encoded rectangle. | |
| 650 // | |
| 651 | |
| 652 void handleRRERect(int x, int y, int w, int h) throws IOException { | |
| 653 | |
| 654 int nSubrects = rfb.readU32(); | |
| 655 | |
| 656 byte[] bg_buf = new byte[bytesPixel]; | |
| 657 rfb.readFully(bg_buf); | |
| 658 Color pixel; | |
| 659 if (bytesPixel == 1) { | |
| 660 pixel = colors[bg_buf[0] & 0xFF]; | |
| 661 } else { | |
| 662 pixel = new Color(bg_buf[2] & 0xFF, bg_buf[1] & 0xFF, | |
| 663 bg_buf[0] & 0xFF); | |
| 664 } | |
| 665 memGraphics.setColor(pixel); | |
| 666 memGraphics.fillRect(x, y, w, h); | |
| 667 | |
| 668 byte[] buf = new byte[nSubrects * (bytesPixel + 8)]; | |
| 669 rfb.readFully(buf); | |
| 670 DataInputStream ds = new DataInputStream(new ByteArrayInputStream(buf)); | |
| 671 | |
| 672 if (rfb.rec != null) { | |
| 673 rfb.rec.writeIntBE(nSubrects); | |
| 674 rfb.rec.write(bg_buf); | |
| 675 rfb.rec.write(buf); | |
| 676 } | |
| 677 | |
| 678 int sx, sy, sw, sh; | |
| 679 | |
| 680 for (int j = 0; j < nSubrects; j++) { | |
| 681 if (bytesPixel == 1) { | |
| 682 pixel = colors[ds.readUnsignedByte()]; | |
| 683 } else { | |
| 684 ds.skip(4); | |
| 685 pixel = new Color(buf[j * 12 + 2] & 0xFF, | |
| 686 buf[j * 12 + 1] & 0xFF, buf[j * 12] & 0xFF); | |
| 687 } | |
| 688 sx = x + ds.readUnsignedShort(); | |
| 689 sy = y + ds.readUnsignedShort(); | |
| 690 sw = ds.readUnsignedShort(); | |
| 691 sh = ds.readUnsignedShort(); | |
| 692 | |
| 693 memGraphics.setColor(pixel); | |
| 694 memGraphics.fillRect(sx, sy, sw, sh); | |
| 695 } | |
| 696 | |
| 697 scheduleRepaint(x, y, w, h); | |
| 698 } | |
| 699 | |
| 700 // | |
| 701 // Handle a CoRRE-encoded rectangle. | |
| 702 // | |
| 703 | |
| 704 void handleCoRRERect(int x, int y, int w, int h) throws IOException { | |
| 705 int nSubrects = rfb.readU32(); | |
| 706 | |
| 707 byte[] bg_buf = new byte[bytesPixel]; | |
| 708 rfb.readFully(bg_buf); | |
| 709 Color pixel; | |
| 710 if (bytesPixel == 1) { | |
| 711 pixel = colors[bg_buf[0] & 0xFF]; | |
| 712 } else { | |
| 713 pixel = new Color(bg_buf[2] & 0xFF, bg_buf[1] & 0xFF, | |
| 714 bg_buf[0] & 0xFF); | |
| 715 } | |
| 716 memGraphics.setColor(pixel); | |
| 717 memGraphics.fillRect(x, y, w, h); | |
| 718 | |
| 719 byte[] buf = new byte[nSubrects * (bytesPixel + 4)]; | |
| 720 rfb.readFully(buf); | |
| 721 | |
| 722 if (rfb.rec != null) { | |
| 723 rfb.rec.writeIntBE(nSubrects); | |
| 724 rfb.rec.write(bg_buf); | |
| 725 rfb.rec.write(buf); | |
| 726 } | |
| 727 | |
| 728 int sx, sy, sw, sh; | |
| 729 int i = 0; | |
| 730 | |
| 731 for (int j = 0; j < nSubrects; j++) { | |
| 732 if (bytesPixel == 1) { | |
| 733 pixel = colors[buf[i++] & 0xFF]; | |
| 734 } else { | |
| 735 pixel = new Color(buf[i + 2] & 0xFF, buf[i + 1] & 0xFF, | |
| 736 buf[i] & 0xFF); | |
| 737 i += 4; | |
| 738 } | |
| 739 sx = x + (buf[i++] & 0xFF); | |
| 740 sy = y + (buf[i++] & 0xFF); | |
| 741 sw = buf[i++] & 0xFF; | |
| 742 sh = buf[i++] & 0xFF; | |
| 743 | |
| 744 memGraphics.setColor(pixel); | |
| 745 memGraphics.fillRect(sx, sy, sw, sh); | |
| 746 } | |
| 747 | |
| 748 scheduleRepaint(x, y, w, h); | |
| 749 } | |
| 750 | |
| 751 // | |
| 752 // Handle a Hextile-encoded rectangle. | |
| 753 // | |
| 754 | |
| 755 // These colors should be kept between handleHextileSubrect() calls. | |
| 756 private Color hextile_bg, hextile_fg; | |
| 757 | |
| 758 void handleHextileRect(int x, int y, int w, int h) throws IOException { | |
| 759 | |
| 760 hextile_bg = new Color(0); | |
| 761 hextile_fg = new Color(0); | |
| 762 | |
| 763 for (int ty = y; ty < y + h; ty += 16) { | |
| 764 int th = 16; | |
| 765 if (y + h - ty < 16) | |
| 766 th = y + h - ty; | |
| 767 | |
| 768 for (int tx = x; tx < x + w; tx += 16) { | |
| 769 int tw = 16; | |
| 770 if (x + w - tx < 16) | |
| 771 tw = x + w - tx; | |
| 772 | |
| 773 handleHextileSubrect(tx, ty, tw, th); | |
| 774 } | |
| 775 | |
| 776 // Finished with a row of tiles, now let's show it. | |
| 777 scheduleRepaint(x, y, w, h); | |
| 778 } | |
| 779 } | |
| 780 | |
| 781 // | |
| 782 // Handle one tile in the Hextile-encoded data. | |
| 783 // | |
| 784 | |
| 785 void handleHextileSubrect(int tx, int ty, int tw, int th) | |
| 786 throws IOException { | |
| 787 | |
| 788 int subencoding = rfb.readU8(); | |
| 789 if (rfb.rec != null) { | |
| 790 rfb.rec.writeByte(subencoding); | |
| 791 } | |
| 792 | |
| 793 // Is it a raw-encoded sub-rectangle? | |
| 794 if ((subencoding & rfb.HextileRaw) != 0) { | |
| 795 handleRawRect(tx, ty, tw, th, false); | |
| 796 return; | |
| 797 } | |
| 0 | 798 |
| 4 | 799 // Read and draw the background if specified. |
| 800 byte[] cbuf = new byte[bytesPixel]; | |
| 801 if ((subencoding & rfb.HextileBackgroundSpecified) != 0) { | |
| 802 rfb.readFully(cbuf); | |
| 803 if (bytesPixel == 1) { | |
| 804 hextile_bg = colors[cbuf[0] & 0xFF]; | |
| 805 } else { | |
| 806 hextile_bg = new Color(cbuf[2] & 0xFF, cbuf[1] & 0xFF, | |
| 807 cbuf[0] & 0xFF); | |
| 808 } | |
| 809 if (rfb.rec != null) { | |
| 810 rfb.rec.write(cbuf); | |
| 811 } | |
| 812 } | |
| 813 memGraphics.setColor(hextile_bg); | |
| 814 memGraphics.fillRect(tx, ty, tw, th); | |
| 815 | |
| 816 // Read the foreground color if specified. | |
| 817 if ((subencoding & rfb.HextileForegroundSpecified) != 0) { | |
| 818 rfb.readFully(cbuf); | |
| 819 if (bytesPixel == 1) { | |
| 820 hextile_fg = colors[cbuf[0] & 0xFF]; | |
| 821 } else { | |
| 822 hextile_fg = new Color(cbuf[2] & 0xFF, cbuf[1] & 0xFF, | |
| 823 cbuf[0] & 0xFF); | |
| 824 } | |
| 825 if (rfb.rec != null) { | |
| 826 rfb.rec.write(cbuf); | |
| 827 } | |
| 828 } | |
| 829 | |
| 830 // Done with this tile if there is no sub-rectangles. | |
| 831 if ((subencoding & rfb.HextileAnySubrects) == 0) | |
| 832 return; | |
| 833 | |
| 834 int nSubrects = rfb.readU8(); | |
| 835 int bufsize = nSubrects * 2; | |
| 836 if ((subencoding & rfb.HextileSubrectsColoured) != 0) { | |
| 837 bufsize += nSubrects * bytesPixel; | |
| 838 } | |
| 839 byte[] buf = new byte[bufsize]; | |
| 840 rfb.readFully(buf); | |
| 841 if (rfb.rec != null) { | |
| 842 rfb.rec.writeByte(nSubrects); | |
| 843 rfb.rec.write(buf); | |
| 844 } | |
| 845 | |
| 846 int b1, b2, sx, sy, sw, sh; | |
| 847 int i = 0; | |
| 848 | |
| 849 if ((subencoding & rfb.HextileSubrectsColoured) == 0) { | |
| 850 | |
| 851 // Sub-rectangles are all of the same color. | |
| 852 memGraphics.setColor(hextile_fg); | |
| 853 for (int j = 0; j < nSubrects; j++) { | |
| 854 b1 = buf[i++] & 0xFF; | |
| 855 b2 = buf[i++] & 0xFF; | |
| 856 sx = tx + (b1 >> 4); | |
| 857 sy = ty + (b1 & 0xf); | |
| 858 sw = (b2 >> 4) + 1; | |
| 859 sh = (b2 & 0xf) + 1; | |
| 860 memGraphics.fillRect(sx, sy, sw, sh); | |
| 861 } | |
| 862 } else if (bytesPixel == 1) { | |
| 863 | |
| 864 // BGR233 (8-bit color) version for colored sub-rectangles. | |
| 865 for (int j = 0; j < nSubrects; j++) { | |
| 866 hextile_fg = colors[buf[i++] & 0xFF]; | |
| 867 b1 = buf[i++] & 0xFF; | |
| 868 b2 = buf[i++] & 0xFF; | |
| 869 sx = tx + (b1 >> 4); | |
| 870 sy = ty + (b1 & 0xf); | |
| 871 sw = (b2 >> 4) + 1; | |
| 872 sh = (b2 & 0xf) + 1; | |
| 873 memGraphics.setColor(hextile_fg); | |
| 874 memGraphics.fillRect(sx, sy, sw, sh); | |
| 875 } | |
| 876 | |
| 877 } else { | |
| 878 | |
| 879 // Full-color (24-bit) version for colored sub-rectangles. | |
| 880 for (int j = 0; j < nSubrects; j++) { | |
| 881 hextile_fg = new Color(buf[i + 2] & 0xFF, buf[i + 1] & 0xFF, | |
| 882 buf[i] & 0xFF); | |
| 883 i += 4; | |
| 884 b1 = buf[i++] & 0xFF; | |
| 885 b2 = buf[i++] & 0xFF; | |
| 886 sx = tx + (b1 >> 4); | |
| 887 sy = ty + (b1 & 0xf); | |
| 888 sw = (b2 >> 4) + 1; | |
| 889 sh = (b2 & 0xf) + 1; | |
| 890 memGraphics.setColor(hextile_fg); | |
| 891 memGraphics.fillRect(sx, sy, sw, sh); | |
| 892 } | |
| 893 | |
| 894 } | |
| 895 } | |
| 896 | |
| 897 // | |
| 898 // Handle a ZRLE-encoded rectangle. | |
| 899 // | |
| 900 // FIXME: Currently, session recording is not fully supported for ZRLE. | |
| 901 // | |
| 902 | |
| 903 void handleZRLERect(int x, int y, int w, int h) throws Exception { | |
| 904 | |
| 905 if (zrleInStream == null) | |
| 906 zrleInStream = new ZlibInStream(); | |
| 907 | |
| 908 int nBytes = rfb.readU32(); | |
| 909 if (nBytes > 64 * 1024 * 1024) | |
| 910 throw new Exception("ZRLE decoder: illegal compressed data size"); | |
| 911 | |
| 912 if (zrleBuf == null || zrleBufLen < nBytes) { | |
| 913 zrleBufLen = nBytes + 4096; | |
| 914 zrleBuf = new byte[zrleBufLen]; | |
| 915 } | |
| 916 | |
| 917 // FIXME: Do not wait for all the data before decompression. | |
| 918 rfb.readFully(zrleBuf, 0, nBytes); | |
| 919 | |
| 920 if (rfb.rec != null) { | |
| 921 if (rfb.recordFromBeginning) { | |
| 922 rfb.rec.writeIntBE(nBytes); | |
| 923 rfb.rec.write(zrleBuf, 0, nBytes); | |
| 924 } else if (!zrleRecWarningShown) { | |
| 925 System.out.println("Warning: ZRLE session can be recorded" | |
| 926 + " only from the beginning"); | |
| 927 System.out.println("Warning: Recorded file may be corrupted"); | |
| 928 zrleRecWarningShown = true; | |
| 929 } | |
| 930 | |
| 931 } | |
| 932 | |
| 933 zrleInStream.setUnderlying(new MemInStream(zrleBuf, 0, nBytes), nBytes); | |
| 934 | |
| 935 for (int ty = y; ty < y + h; ty += 64) { | |
| 936 | |
| 937 int th = Math.min(y + h - ty, 64); | |
| 938 | |
| 939 for (int tx = x; tx < x + w; tx += 64) { | |
| 940 | |
| 941 int tw = Math.min(x + w - tx, 64); | |
| 942 | |
| 943 int mode = zrleInStream.readU8(); | |
| 944 boolean rle = (mode & 128) != 0; | |
| 945 int palSize = mode & 127; | |
| 946 int[] palette = new int[128]; | |
| 947 | |
| 948 readZrlePalette(palette, palSize); | |
| 949 | |
| 950 if (palSize == 1) { | |
| 951 int pix = palette[0]; | |
| 952 Color c = (bytesPixel == 1) ? colors[pix] : new Color( | |
| 953 0xFF000000 | pix); | |
| 954 memGraphics.setColor(c); | |
| 955 memGraphics.fillRect(tx, ty, tw, th); | |
| 956 continue; | |
| 957 } | |
| 958 | |
| 959 if (!rle) { | |
| 960 if (palSize == 0) { | |
| 961 readZrleRawPixels(tw, th); | |
| 962 } else { | |
| 963 readZrlePackedPixels(tw, th, palette, palSize); | |
| 964 } | |
| 965 } else { | |
| 966 if (palSize == 0) { | |
| 967 readZrlePlainRLEPixels(tw, th); | |
| 968 } else { | |
| 969 readZrlePackedRLEPixels(tw, th, palette); | |
| 970 } | |
| 971 } | |
| 972 handleUpdatedZrleTile(tx, ty, tw, th); | |
| 973 } | |
| 974 } | |
| 975 | |
| 976 zrleInStream.reset(); | |
| 977 | |
| 978 scheduleRepaint(x, y, w, h); | |
| 0 | 979 } |
| 980 | |
| 4 | 981 int readPixel(InStream is) throws Exception { |
| 982 int pix; | |
| 0 | 983 |
| 4 | 984 if (bytesPixel == 1) { |
| 0 | 985 |
| 4 | 986 pix = is.readU8(); |
| 987 } else { | |
| 988 int p1 = is.readU8(); | |
| 989 int p2 = is.readU8(); | |
| 990 int p3 = is.readU8(); | |
| 991 pix = (p3 & 0xFF) << 16 | (p2 & 0xFF) << 8 | (p1 & 0xFF); | |
| 992 } | |
| 993 return pix; | |
| 994 } | |
| 0 | 995 |
| 4 | 996 void readPixels(InStream is, int[] dst, int count) throws Exception { |
| 997 int pix; | |
| 998 if (bytesPixel == 1) { | |
| 999 byte[] buf = new byte[count]; | |
| 1000 is.readBytes(buf, 0, count); | |
| 1001 for (int i = 0; i < count; i++) { | |
| 1002 dst[i] = (int) buf[i] & 0xFF; | |
| 1003 } | |
| 1004 } else { | |
| 1005 byte[] buf = new byte[count * 3]; | |
| 1006 is.readBytes(buf, 0, count * 3); | |
| 1007 for (int i = 0; i < count; i++) { | |
| 1008 dst[i] = ((buf[i * 3 + 2] & 0xFF) << 16 | |
| 1009 | (buf[i * 3 + 1] & 0xFF) << 8 | (buf[i * 3] & 0xFF)); | |
| 1010 } | |
| 1011 } | |
| 0 | 1012 } |
| 4 | 1013 |
| 1014 void readZrlePalette(int[] palette, int palSize) throws Exception { | |
| 1015 readPixels(zrleInStream, palette, palSize); | |
| 0 | 1016 } |
| 4 | 1017 |
| 1018 void readZrleRawPixels(int tw, int th) throws Exception { | |
| 1019 if (bytesPixel == 1) { | |
| 1020 zrleInStream.readBytes(zrleTilePixels8, 0, tw * th); | |
| 1021 } else { | |
| 1022 readPixels(zrleInStream, zrleTilePixels24, tw * th); // / | |
| 1023 } | |
| 0 | 1024 } |
| 1025 | |
| 4 | 1026 void readZrlePackedPixels(int tw, int th, int[] palette, int palSize) |
| 1027 throws Exception { | |
| 0 | 1028 |
| 4 | 1029 int bppp = ((palSize > 16) ? 8 : ((palSize > 4) ? 4 |
| 1030 : ((palSize > 2) ? 2 : 1))); | |
| 1031 int ptr = 0; | |
| 0 | 1032 |
| 4 | 1033 for (int i = 0; i < th; i++) { |
| 1034 int eol = ptr + tw; | |
| 1035 int b = 0; | |
| 1036 int nbits = 0; | |
| 0 | 1037 |
| 4 | 1038 while (ptr < eol) { |
| 1039 if (nbits == 0) { | |
| 1040 b = zrleInStream.readU8(); | |
| 1041 nbits = 8; | |
| 1042 } | |
| 1043 nbits -= bppp; | |
| 1044 int index = (b >> nbits) & ((1 << bppp) - 1) & 127; | |
| 1045 if (bytesPixel == 1) { | |
| 1046 zrleTilePixels8[ptr++] = (byte) palette[index]; | |
| 1047 } else { | |
| 1048 zrleTilePixels24[ptr++] = palette[index]; | |
| 1049 } | |
| 1050 } | |
| 1051 } | |
| 1052 } | |
| 0 | 1053 |
| 4 | 1054 void readZrlePlainRLEPixels(int tw, int th) throws Exception { |
| 1055 int ptr = 0; | |
| 1056 int end = ptr + tw * th; | |
| 1057 while (ptr < end) { | |
| 1058 int pix = readPixel(zrleInStream); | |
| 1059 int len = 1; | |
| 1060 int b; | |
| 1061 do { | |
| 1062 b = zrleInStream.readU8(); | |
| 1063 len += b; | |
| 1064 } while (b == 255); | |
| 0 | 1065 |
| 4 | 1066 if (!(len <= end - ptr)) |
| 1067 throw new Exception("ZRLE decoder: assertion failed" | |
| 1068 + " (len <= end-ptr)"); | |
| 0 | 1069 |
| 4 | 1070 if (bytesPixel == 1) { |
| 1071 while (len-- > 0) | |
| 1072 zrleTilePixels8[ptr++] = (byte) pix; | |
| 1073 } else { | |
| 1074 while (len-- > 0) | |
| 1075 zrleTilePixels24[ptr++] = pix; | |
| 1076 } | |
| 1077 } | |
| 1078 } | |
| 0 | 1079 |
| 4 | 1080 void readZrlePackedRLEPixels(int tw, int th, int[] palette) |
| 1081 throws Exception { | |
| 0 | 1082 |
| 4 | 1083 int ptr = 0; |
| 1084 int end = ptr + tw * th; | |
| 1085 while (ptr < end) { | |
| 1086 int index = zrleInStream.readU8(); | |
| 1087 int len = 1; | |
| 1088 if ((index & 128) != 0) { | |
| 1089 int b; | |
| 1090 do { | |
| 1091 b = zrleInStream.readU8(); | |
| 1092 len += b; | |
| 1093 } while (b == 255); | |
| 0 | 1094 |
| 4 | 1095 if (!(len <= end - ptr)) |
| 1096 throw new Exception("ZRLE decoder: assertion failed" | |
| 1097 + " (len <= end - ptr)"); | |
| 1098 } | |
| 0 | 1099 |
| 4 | 1100 index &= 127; |
| 1101 int pix = palette[index]; | |
| 0 | 1102 |
| 4 | 1103 if (bytesPixel == 1) { |
| 1104 while (len-- > 0) | |
| 1105 zrleTilePixels8[ptr++] = (byte) pix; | |
| 1106 } else { | |
| 1107 while (len-- > 0) | |
| 1108 zrleTilePixels24[ptr++] = pix; | |
| 1109 } | |
| 1110 } | |
| 1111 } | |
| 0 | 1112 |
| 4 | 1113 // |
| 1114 // Copy pixels from zrleTilePixels8 or zrleTilePixels24, then update. | |
| 1115 // | |
| 0 | 1116 |
| 4 | 1117 void handleUpdatedZrleTile(int x, int y, int w, int h) { |
| 1118 Object src, dst; | |
| 1119 if (bytesPixel == 1) { | |
| 1120 src = zrleTilePixels8; | |
| 1121 dst = pixels8; | |
| 1122 } else { | |
| 1123 src = zrleTilePixels24; | |
| 1124 dst = pixels24; | |
| 1125 } | |
| 1126 int offsetSrc = 0; | |
| 1127 int offsetDst = (y * rfb.framebufferWidth + x); | |
| 1128 for (int j = 0; j < h; j++) { | |
| 1129 System.arraycopy(src, offsetSrc, dst, offsetDst, w); | |
| 1130 offsetSrc += w; | |
| 1131 offsetDst += rfb.framebufferWidth; | |
| 1132 } | |
| 1133 handleUpdatedPixels(x, y, w, h); | |
| 1134 } | |
| 0 | 1135 |
| 4 | 1136 // |
| 1137 // Handle a Zlib-encoded rectangle. | |
| 1138 // | |
| 1139 | |
| 1140 void handleZlibRect(int x, int y, int w, int h) throws Exception { | |
| 1141 | |
| 1142 int nBytes = rfb.readU32(); | |
| 0 | 1143 |
| 4 | 1144 if (zlibBuf == null || zlibBufLen < nBytes) { |
| 1145 zlibBufLen = nBytes * 2; | |
| 1146 zlibBuf = new byte[zlibBufLen]; | |
| 1147 } | |
| 1148 | |
| 1149 rfb.readFully(zlibBuf, 0, nBytes); | |
| 1150 | |
| 1151 if (rfb.rec != null && rfb.recordFromBeginning) { | |
| 1152 rfb.rec.writeIntBE(nBytes); | |
| 1153 rfb.rec.write(zlibBuf, 0, nBytes); | |
| 1154 } | |
| 0 | 1155 |
| 4 | 1156 if (zlibInflater == null) { |
| 1157 zlibInflater = new Inflater(); | |
| 1158 } | |
| 1159 zlibInflater.setInput(zlibBuf, 0, nBytes); | |
| 0 | 1160 |
| 4 | 1161 if (bytesPixel == 1) { |
| 1162 for (int dy = y; dy < y + h; dy++) { | |
| 1163 zlibInflater.inflate(pixels8, dy * rfb.framebufferWidth + x, w); | |
| 1164 if (rfb.rec != null && !rfb.recordFromBeginning) | |
| 1165 rfb.rec.write(pixels8, dy * rfb.framebufferWidth + x, w); | |
| 1166 } | |
| 1167 } else { | |
| 1168 byte[] buf = new byte[w * 4]; | |
| 1169 int i, offset; | |
| 1170 for (int dy = y; dy < y + h; dy++) { | |
| 1171 zlibInflater.inflate(buf); | |
| 1172 offset = dy * rfb.framebufferWidth + x; | |
| 1173 for (i = 0; i < w; i++) { | |
| 1174 pixels24[offset + i] = (buf[i * 4 + 2] & 0xFF) << 16 | |
| 1175 | (buf[i * 4 + 1] & 0xFF) << 8 | |
| 1176 | (buf[i * 4] & 0xFF); | |
| 1177 } | |
| 1178 if (rfb.rec != null && !rfb.recordFromBeginning) | |
| 1179 rfb.rec.write(buf); | |
| 1180 } | |
| 1181 } | |
| 0 | 1182 |
| 4 | 1183 handleUpdatedPixels(x, y, w, h); |
| 1184 scheduleRepaint(x, y, w, h); | |
| 1185 } | |
| 0 | 1186 |
| 4 | 1187 // |
| 1188 // Handle a Tight-encoded rectangle. | |
| 1189 // | |
| 0 | 1190 |
| 4 | 1191 void handleTightRect(int x, int y, int w, int h) throws Exception { |
| 0 | 1192 |
| 4 | 1193 int comp_ctl = rfb.readU8(); |
| 1194 if (rfb.rec != null) { | |
| 1195 if (rfb.recordFromBeginning || comp_ctl == (rfb.TightFill << 4) | |
| 1196 || comp_ctl == (rfb.TightJpeg << 4)) { | |
| 1197 // Send data exactly as received. | |
| 1198 rfb.rec.writeByte(comp_ctl); | |
| 1199 } else { | |
| 1200 // Tell the decoder to flush each of the four zlib streams. | |
| 1201 rfb.rec.writeByte(comp_ctl | 0x0F); | |
| 1202 } | |
| 1203 } | |
| 0 | 1204 |
| 4 | 1205 // Flush zlib streams if we are told by the server to do so. |
| 1206 for (int stream_id = 0; stream_id < 4; stream_id++) { | |
| 1207 if ((comp_ctl & 1) != 0 && tightInflaters[stream_id] != null) { | |
| 1208 tightInflaters[stream_id] = null; | |
| 1209 } | |
| 1210 comp_ctl >>= 1; | |
| 1211 } | |
| 0 | 1212 |
| 4 | 1213 // Check correctness of subencoding value. |
| 1214 if (comp_ctl > rfb.TightMaxSubencoding) { | |
| 1215 throw new Exception("Incorrect tight subencoding: " + comp_ctl); | |
| 1216 } | |
| 0 | 1217 |
| 4 | 1218 // Handle solid-color rectangles. |
| 1219 if (comp_ctl == rfb.TightFill) { | |
| 0 | 1220 |
| 4 | 1221 if (bytesPixel == 1) { |
| 1222 int idx = rfb.readU8(); | |
| 1223 memGraphics.setColor(colors[idx]); | |
| 1224 if (rfb.rec != null) { | |
| 1225 rfb.rec.writeByte(idx); | |
| 1226 } | |
| 1227 } else { | |
| 1228 byte[] buf = new byte[3]; | |
| 1229 rfb.readFully(buf); | |
| 1230 if (rfb.rec != null) { | |
| 1231 rfb.rec.write(buf); | |
| 1232 } | |
| 1233 Color bg = new Color(0xFF000000 | (buf[0] & 0xFF) << 16 | |
| 1234 | (buf[1] & 0xFF) << 8 | (buf[2] & 0xFF)); | |
| 1235 memGraphics.setColor(bg); | |
| 1236 } | |
| 1237 memGraphics.fillRect(x, y, w, h); | |
| 1238 scheduleRepaint(x, y, w, h); | |
| 1239 return; | |
| 0 | 1240 |
| 4 | 1241 } |
| 0 | 1242 |
| 4 | 1243 if (comp_ctl == rfb.TightJpeg) { |
| 1244 | |
| 1245 statNumRectsTightJPEG++; | |
| 0 | 1246 |
| 4 | 1247 // Read JPEG data. |
| 1248 byte[] jpegData = new byte[rfb.readCompactLen()]; | |
| 1249 rfb.readFully(jpegData); | |
| 1250 if (rfb.rec != null) { | |
| 1251 if (!rfb.recordFromBeginning) { | |
| 1252 rfb.recordCompactLen(jpegData.length); | |
| 1253 } | |
| 1254 rfb.rec.write(jpegData); | |
| 1255 } | |
| 0 | 1256 |
| 4 | 1257 // Create an Image object from the JPEG data. |
| 1258 Image jpegImage = Toolkit.getDefaultToolkit().createImage(jpegData); | |
| 0 | 1259 |
| 4 | 1260 // Remember the rectangle where the image should be drawn. |
| 1261 jpegRect = new Rectangle(x, y, w, h); | |
| 0 | 1262 |
| 4 | 1263 // Let the imageUpdate() method do the actual drawing, here just |
| 1264 // wait until the image is fully loaded and drawn. | |
| 1265 synchronized (jpegRect) { | |
| 1266 Toolkit.getDefaultToolkit().prepareImage(jpegImage, -1, -1, | |
| 1267 this); | |
| 1268 try { | |
| 1269 // Wait no longer than three seconds. | |
| 1270 jpegRect.wait(3000); | |
| 1271 } catch (InterruptedException e) { | |
| 1272 throw new Exception("Interrupted while decoding JPEG image"); | |
| 1273 } | |
| 1274 } | |
| 0 | 1275 |
| 4 | 1276 // Done, jpegRect is not needed any more. |
| 1277 jpegRect = null; | |
| 1278 return; | |
| 0 | 1279 |
| 4 | 1280 } |
| 0 | 1281 |
| 4 | 1282 // Read filter id and parameters. |
| 1283 int numColors = 0, rowSize = w; | |
| 1284 byte[] palette8 = new byte[2]; | |
| 1285 int[] palette24 = new int[256]; | |
| 1286 boolean useGradient = false; | |
| 1287 if ((comp_ctl & rfb.TightExplicitFilter) != 0) { | |
| 1288 int filter_id = rfb.readU8(); | |
| 1289 if (rfb.rec != null) { | |
| 1290 rfb.rec.writeByte(filter_id); | |
| 1291 } | |
| 1292 if (filter_id == rfb.TightFilterPalette) { | |
| 1293 numColors = rfb.readU8() + 1; | |
| 1294 if (rfb.rec != null) { | |
| 1295 rfb.rec.writeByte(numColors - 1); | |
| 1296 } | |
| 1297 if (bytesPixel == 1) { | |
| 1298 if (numColors != 2) { | |
| 1299 throw new Exception("Incorrect tight palette size: " | |
| 1300 + numColors); | |
| 1301 } | |
| 1302 rfb.readFully(palette8); | |
| 1303 if (rfb.rec != null) { | |
| 1304 rfb.rec.write(palette8); | |
| 1305 } | |
| 1306 } else { | |
| 1307 byte[] buf = new byte[numColors * 3]; | |
| 1308 rfb.readFully(buf); | |
| 1309 if (rfb.rec != null) { | |
| 1310 rfb.rec.write(buf); | |
| 1311 } | |
| 1312 for (int i = 0; i < numColors; i++) { | |
| 1313 palette24[i] = ((buf[i * 3] & 0xFF) << 16 | |
| 1314 | (buf[i * 3 + 1] & 0xFF) << 8 | (buf[i * 3 + 2] & 0xFF)); | |
| 1315 } | |
| 1316 } | |
| 1317 if (numColors == 2) | |
| 1318 rowSize = (w + 7) / 8; | |
| 1319 } else if (filter_id == rfb.TightFilterGradient) { | |
| 1320 useGradient = true; | |
| 1321 } else if (filter_id != rfb.TightFilterCopy) { | |
| 1322 throw new Exception("Incorrect tight filter id: " + filter_id); | |
| 1323 } | |
| 1324 } | |
| 1325 if (numColors == 0 && bytesPixel == 4) | |
| 1326 rowSize *= 3; | |
| 0 | 1327 |
| 4 | 1328 // Read, optionally uncompress and decode data. |
| 1329 int dataSize = h * rowSize; | |
| 1330 if (dataSize < rfb.TightMinToCompress) { | |
| 1331 // Data size is small - not compressed with zlib. | |
| 1332 if (numColors != 0) { | |
| 1333 // Indexed colors. | |
| 1334 byte[] indexedData = new byte[dataSize]; | |
| 1335 rfb.readFully(indexedData); | |
| 1336 if (rfb.rec != null) { | |
| 1337 rfb.rec.write(indexedData); | |
| 1338 } | |
| 1339 if (numColors == 2) { | |
| 1340 // Two colors. | |
| 1341 if (bytesPixel == 1) { | |
| 1342 decodeMonoData(x, y, w, h, indexedData, palette8); | |
| 1343 } else { | |
| 1344 decodeMonoData(x, y, w, h, indexedData, palette24); | |
| 1345 } | |
| 1346 } else { | |
| 1347 // 3..255 colors (assuming bytesPixel == 4). | |
| 1348 int i = 0; | |
| 1349 for (int dy = y; dy < y + h; dy++) { | |
| 1350 for (int dx = x; dx < x + w; dx++) { | |
| 1351 pixels24[dy * rfb.framebufferWidth + dx] = palette24[indexedData[i++] & 0xFF]; | |
| 1352 } | |
| 1353 } | |
| 1354 } | |
| 1355 } else if (useGradient) { | |
| 1356 // "Gradient"-processed data | |
| 1357 byte[] buf = new byte[w * h * 3]; | |
| 1358 rfb.readFully(buf); | |
| 1359 if (rfb.rec != null) { | |
| 1360 rfb.rec.write(buf); | |
| 1361 } | |
| 1362 decodeGradientData(x, y, w, h, buf); | |
| 1363 } else { | |
| 1364 // Raw truecolor data. | |
| 1365 if (bytesPixel == 1) { | |
| 1366 for (int dy = y; dy < y + h; dy++) { | |
| 1367 rfb.readFully(pixels8, dy * rfb.framebufferWidth + x, w); | |
| 1368 if (rfb.rec != null) { | |
| 1369 rfb.rec.write(pixels8, dy * rfb.framebufferWidth | |
| 1370 + x, w); | |
| 1371 } | |
| 1372 } | |
| 1373 } else { | |
| 1374 byte[] buf = new byte[w * 3]; | |
| 1375 int i, offset; | |
| 1376 for (int dy = y; dy < y + h; dy++) { | |
| 1377 rfb.readFully(buf); | |
| 1378 if (rfb.rec != null) { | |
| 1379 rfb.rec.write(buf); | |
| 1380 } | |
| 1381 offset = dy * rfb.framebufferWidth + x; | |
| 1382 for (i = 0; i < w; i++) { | |
| 1383 pixels24[offset + i] = (buf[i * 3] & 0xFF) << 16 | |
| 1384 | (buf[i * 3 + 1] & 0xFF) << 8 | |
| 1385 | (buf[i * 3 + 2] & 0xFF); | |
| 1386 } | |
| 1387 } | |
| 1388 } | |
| 1389 } | |
| 1390 } else { | |
| 1391 // Data was compressed with zlib. | |
| 1392 int zlibDataLen = rfb.readCompactLen(); | |
| 1393 byte[] zlibData = new byte[zlibDataLen]; | |
| 1394 rfb.readFully(zlibData); | |
| 1395 if (rfb.rec != null && rfb.recordFromBeginning) { | |
| 1396 rfb.rec.write(zlibData); | |
| 1397 } | |
| 1398 int stream_id = comp_ctl & 0x03; | |
| 1399 if (tightInflaters[stream_id] == null) { | |
| 1400 tightInflaters[stream_id] = new Inflater(); | |
| 1401 } | |
| 1402 Inflater myInflater = tightInflaters[stream_id]; | |
| 1403 myInflater.setInput(zlibData); | |
| 1404 byte[] buf = new byte[dataSize]; | |
| 1405 myInflater.inflate(buf); | |
| 1406 if (rfb.rec != null && !rfb.recordFromBeginning) { | |
| 1407 rfb.recordCompressedData(buf); | |
| 1408 } | |
| 0 | 1409 |
| 4 | 1410 if (numColors != 0) { |
| 1411 // Indexed colors. | |
| 1412 if (numColors == 2) { | |
| 1413 // Two colors. | |
| 1414 if (bytesPixel == 1) { | |
| 1415 decodeMonoData(x, y, w, h, buf, palette8); | |
| 1416 } else { | |
| 1417 decodeMonoData(x, y, w, h, buf, palette24); | |
| 1418 } | |
| 1419 } else { | |
| 1420 // More than two colors (assuming bytesPixel == 4). | |
| 1421 int i = 0; | |
| 1422 for (int dy = y; dy < y + h; dy++) { | |
| 1423 for (int dx = x; dx < x + w; dx++) { | |
| 1424 pixels24[dy * rfb.framebufferWidth + dx] = palette24[buf[i++] & 0xFF]; | |
| 1425 } | |
| 1426 } | |
| 1427 } | |
| 1428 } else if (useGradient) { | |
| 1429 // Compressed "Gradient"-filtered data (assuming bytesPixel == | |
| 1430 // 4). | |
| 1431 decodeGradientData(x, y, w, h, buf); | |
| 1432 } else { | |
| 1433 // Compressed truecolor data. | |
| 1434 if (bytesPixel == 1) { | |
| 1435 int destOffset = y * rfb.framebufferWidth + x; | |
| 1436 for (int dy = 0; dy < h; dy++) { | |
| 1437 System.arraycopy(buf, dy * w, pixels8, destOffset, w); | |
| 1438 destOffset += rfb.framebufferWidth; | |
| 1439 } | |
| 1440 } else { | |
| 1441 int srcOffset = 0; | |
| 1442 int destOffset, i; | |
| 1443 for (int dy = 0; dy < h; dy++) { | |
| 1444 myInflater.inflate(buf); | |
| 1445 destOffset = (y + dy) * rfb.framebufferWidth + x; | |
| 1446 for (i = 0; i < w; i++) { | |
| 1447 pixels24[destOffset + i] = (buf[srcOffset] & 0xFF) << 16 | |
| 1448 | (buf[srcOffset + 1] & 0xFF) << 8 | |
| 1449 | (buf[srcOffset + 2] & 0xFF); | |
| 1450 srcOffset += 3; | |
| 1451 } | |
| 1452 } | |
| 1453 } | |
| 1454 } | |
| 1455 } | |
| 0 | 1456 |
| 4 | 1457 handleUpdatedPixels(x, y, w, h); |
| 1458 scheduleRepaint(x, y, w, h); | |
| 0 | 1459 } |
| 1460 | |
| 4 | 1461 // |
| 1462 // Decode 1bpp-encoded bi-color rectangle (8-bit and 24-bit versions). | |
| 1463 // | |
| 0 | 1464 |
| 4 | 1465 void decodeMonoData(int x, int y, int w, int h, byte[] src, byte[] palette) { |
| 0 | 1466 |
| 4 | 1467 int dx, dy, n; |
| 1468 int i = y * rfb.framebufferWidth + x; | |
| 1469 int rowBytes = (w + 7) / 8; | |
| 1470 byte b; | |
| 0 | 1471 |
| 4 | 1472 for (dy = 0; dy < h; dy++) { |
| 1473 for (dx = 0; dx < w / 8; dx++) { | |
| 1474 b = src[dy * rowBytes + dx]; | |
| 1475 for (n = 7; n >= 0; n--) | |
| 1476 pixels8[i++] = palette[b >> n & 1]; | |
| 1477 } | |
| 1478 for (n = 7; n >= 8 - w % 8; n--) { | |
| 1479 pixels8[i++] = palette[src[dy * rowBytes + dx] >> n & 1]; | |
| 1480 } | |
| 1481 i += (rfb.framebufferWidth - w); | |
| 1482 } | |
| 0 | 1483 } |
| 1484 | |
| 4 | 1485 void decodeMonoData(int x, int y, int w, int h, byte[] src, int[] palette) { |
| 1486 | |
| 1487 int dx, dy, n; | |
| 1488 int i = y * rfb.framebufferWidth + x; | |
| 1489 int rowBytes = (w + 7) / 8; | |
| 1490 byte b; | |
| 1491 | |
| 1492 for (dy = 0; dy < h; dy++) { | |
| 1493 for (dx = 0; dx < w / 8; dx++) { | |
| 1494 b = src[dy * rowBytes + dx]; | |
| 1495 for (n = 7; n >= 0; n--) | |
| 1496 pixels24[i++] = palette[b >> n & 1]; | |
| 1497 } | |
| 1498 for (n = 7; n >= 8 - w % 8; n--) { | |
| 1499 pixels24[i++] = palette[src[dy * rowBytes + dx] >> n & 1]; | |
| 1500 } | |
| 1501 i += (rfb.framebufferWidth - w); | |
| 1502 } | |
| 0 | 1503 } |
| 4 | 1504 |
| 1505 // | |
| 1506 // Decode data processed with the "Gradient" filter. | |
| 1507 // | |
| 1508 | |
| 1509 void decodeGradientData(int x, int y, int w, int h, byte[] buf) { | |
| 0 | 1510 |
| 4 | 1511 int dx, dy, c; |
| 1512 byte[] prevRow = new byte[w * 3]; | |
| 1513 byte[] thisRow = new byte[w * 3]; | |
| 1514 byte[] pix = new byte[3]; | |
| 1515 int[] est = new int[3]; | |
| 1516 | |
| 1517 int offset = y * rfb.framebufferWidth + x; | |
| 1518 | |
| 1519 for (dy = 0; dy < h; dy++) { | |
| 1520 | |
| 1521 /* First pixel in a row */ | |
| 1522 for (c = 0; c < 3; c++) { | |
| 1523 pix[c] = (byte) (prevRow[c] + buf[dy * w * 3 + c]); | |
| 1524 thisRow[c] = pix[c]; | |
| 1525 } | |
| 1526 pixels24[offset++] = (pix[0] & 0xFF) << 16 | (pix[1] & 0xFF) << 8 | |
| 1527 | (pix[2] & 0xFF); | |
| 1528 | |
| 1529 /* Remaining pixels of a row */ | |
| 1530 for (dx = 1; dx < w; dx++) { | |
| 1531 for (c = 0; c < 3; c++) { | |
| 1532 est[c] = ((prevRow[dx * 3 + c] & 0xFF) + (pix[c] & 0xFF) - (prevRow[(dx - 1) | |
| 1533 * 3 + c] & 0xFF)); | |
| 1534 if (est[c] > 0xFF) { | |
| 1535 est[c] = 0xFF; | |
| 1536 } else if (est[c] < 0x00) { | |
| 1537 est[c] = 0x00; | |
| 1538 } | |
| 1539 pix[c] = (byte) (est[c] + buf[(dy * w + dx) * 3 + c]); | |
| 1540 thisRow[dx * 3 + c] = pix[c]; | |
| 1541 } | |
| 1542 pixels24[offset++] = (pix[0] & 0xFF) << 16 | |
| 1543 | (pix[1] & 0xFF) << 8 | (pix[2] & 0xFF); | |
| 1544 } | |
| 1545 | |
| 1546 System.arraycopy(thisRow, 0, prevRow, 0, w * 3); | |
| 1547 offset += (rfb.framebufferWidth - w); | |
| 1548 } | |
| 0 | 1549 } |
| 4 | 1550 |
| 1551 // | |
| 1552 // Display newly updated area of pixels. | |
| 1553 // | |
| 1554 | |
| 1555 void handleUpdatedPixels(int x, int y, int w, int h) { | |
| 1556 | |
| 1557 // Draw updated pixels of the off-screen image. | |
| 1558 pixelsSource.newPixels(x, y, w, h); | |
| 1559 memGraphics.setClip(x, y, w, h); | |
| 1560 memGraphics.drawImage(rawPixelsImage, 0, 0, null); | |
| 1561 memGraphics.setClip(0, 0, rfb.framebufferWidth, rfb.framebufferHeight); | |
| 0 | 1562 } |
| 4 | 1563 |
| 1564 // | |
| 1565 // Tell JVM to repaint specified desktop area. | |
| 1566 // | |
| 0 | 1567 |
| 4 | 1568 void scheduleRepaint(int x, int y, int w, int h) { |
| 1569 // Request repaint, deferred if necessary. | |
| 1570 if (rfb.framebufferWidth == scaledWidth) { | |
| 1571 repaint(viewer.deferScreenUpdates, x, y, w, h); | |
| 1572 } else { | |
| 1573 int sx = x * scalingFactor / 100; | |
| 1574 int sy = y * scalingFactor / 100; | |
| 1575 int sw = ((x + w) * scalingFactor + 49) / 100 - sx + 1; | |
| 1576 int sh = ((y + h) * scalingFactor + 49) / 100 - sy + 1; | |
| 1577 repaint(viewer.deferScreenUpdates, sx, sy, sw, sh); | |
| 1578 } | |
| 1579 } | |
| 1580 | |
| 1581 // | |
| 1582 // Handle events. | |
| 1583 // | |
| 1584 | |
| 1585 public void keyPressed(KeyEvent evt) { | |
| 1586 processLocalKeyEvent(evt); | |
| 0 | 1587 } |
| 4 | 1588 |
| 1589 public void keyReleased(KeyEvent evt) { | |
| 1590 processLocalKeyEvent(evt); | |
| 0 | 1591 } |
| 4 | 1592 |
| 1593 public void keyTyped(KeyEvent evt) { | |
| 1594 evt.consume(); | |
| 1595 } | |
| 0 | 1596 |
| 4 | 1597 public void mousePressed(MouseEvent evt) { |
| 1598 processLocalMouseEvent(evt, false); | |
| 1599 } | |
| 0 | 1600 |
| 4 | 1601 public void mouseReleased(MouseEvent evt) { |
| 1602 processLocalMouseEvent(evt, false); | |
| 1603 } | |
| 0 | 1604 |
| 4 | 1605 public void mouseMoved(MouseEvent evt) { |
| 1606 processLocalMouseEvent(evt, true); | |
| 1607 } | |
| 0 | 1608 |
| 4 | 1609 public void mouseDragged(MouseEvent evt) { |
| 1610 processLocalMouseEvent(evt, true); | |
| 1611 } | |
| 0 | 1612 |
| 4 | 1613 public void processLocalKeyEvent(KeyEvent evt) { |
| 1614 if (viewer.rfb != null && rfb.inNormalProtocol) { | |
| 1615 if (!inputEnabled) { | |
| 1616 if ((evt.getKeyChar() == 'r' || evt.getKeyChar() == 'R') | |
| 1617 && evt.getID() == KeyEvent.KEY_PRESSED) { | |
| 1618 // Request screen update. | |
| 1619 try { | |
| 1620 rfb.writeFramebufferUpdateRequest(0, 0, | |
| 1621 rfb.framebufferWidth, rfb.framebufferHeight, | |
| 1622 false); | |
| 1623 } catch (IOException e) { | |
| 1624 e.printStackTrace(); | |
| 1625 } | |
| 1626 } | |
| 1627 } else { | |
| 1628 // Input enabled. | |
| 1629 synchronized (rfb) { | |
| 1630 try { | |
| 1631 rfb.writeKeyEvent(evt); | |
| 1632 } catch (Exception e) { | |
| 1633 e.printStackTrace(); | |
| 1634 } | |
| 1635 rfb.notify(); | |
| 1636 } | |
| 1637 } | |
| 1638 } | |
| 1639 // Don't ever pass keyboard events to AWT for default processing. | |
| 1640 // Otherwise, pressing Tab would switch focus to ButtonPanel etc. | |
| 1641 evt.consume(); | |
| 1642 } | |
| 0 | 1643 |
| 4 | 1644 public void processLocalMouseEvent(MouseEvent evt, boolean moved) { |
| 1645 if (viewer.rfb != null && rfb.inNormalProtocol) { | |
| 1646 if (moved) { | |
| 1647 softCursorMove(evt.getX(), evt.getY()); | |
| 1648 } | |
| 1649 if (rfb.framebufferWidth != scaledWidth) { | |
| 1650 int sx = (evt.getX() * 100 + scalingFactor / 2) / scalingFactor; | |
| 1651 int sy = (evt.getY() * 100 + scalingFactor / 2) / scalingFactor; | |
| 1652 evt.translatePoint(sx - evt.getX(), sy - evt.getY()); | |
| 1653 } | |
| 1654 synchronized (rfb) { | |
| 1655 try { | |
| 1656 rfb.writePointerEvent(evt); | |
| 1657 } catch (Exception e) { | |
| 1658 e.printStackTrace(); | |
| 1659 } | |
| 1660 rfb.notify(); | |
| 1661 } | |
| 1662 } | |
| 0 | 1663 } |
| 1664 | |
| 4 | 1665 // |
| 1666 // Ignored events. | |
| 1667 // | |
| 0 | 1668 |
| 4 | 1669 public void mouseClicked(MouseEvent evt) { |
| 1670 } | |
| 1671 | |
| 1672 public void mouseEntered(MouseEvent evt) { | |
| 1673 } | |
| 0 | 1674 |
| 4 | 1675 public void mouseExited(MouseEvent evt) { |
| 1676 } | |
| 1677 | |
| 1678 // | |
| 1679 // Reset update statistics. | |
| 1680 // | |
| 0 | 1681 |
| 4 | 1682 void resetStats() { |
| 1683 statStartTime = System.currentTimeMillis(); | |
| 1684 statNumUpdates = 0; | |
| 1685 statNumTotalRects = 0; | |
| 1686 statNumPixelRects = 0; | |
| 1687 statNumRectsTight = 0; | |
| 1688 statNumRectsTightJPEG = 0; | |
| 1689 statNumRectsZRLE = 0; | |
| 1690 statNumRectsHextile = 0; | |
| 1691 statNumRectsRaw = 0; | |
| 1692 statNumRectsCopy = 0; | |
| 1693 statNumBytesEncoded = 0; | |
| 1694 statNumBytesDecoded = 0; | |
| 1695 } | |
| 0 | 1696 |
| 4 | 1697 // //////////////////////////////////////////////////////////////// |
| 1698 // | |
| 1699 // Handle cursor shape updates (XCursor and RichCursor encodings). | |
| 1700 // | |
| 1701 | |
| 1702 boolean showSoftCursor = false; | |
| 1703 | |
| 1704 MemoryImageSource softCursorSource; | |
| 1705 Image softCursor; | |
| 0 | 1706 |
| 4 | 1707 int cursorX = 0, cursorY = 0; |
| 1708 int cursorWidth, cursorHeight; | |
| 1709 int origCursorWidth, origCursorHeight; | |
| 1710 int hotX, hotY; | |
| 1711 int origHotX, origHotY; | |
| 1712 | |
| 1713 // | |
| 1714 // Handle cursor shape update (XCursor and RichCursor encodings). | |
| 1715 // | |
| 1716 | |
| 1717 synchronized void handleCursorShapeUpdate(int encodingType, int xhot, | |
| 1718 int yhot, int width, int height) throws IOException { | |
| 1719 | |
| 1720 softCursorFree(); | |
| 0 | 1721 |
| 4 | 1722 if (width * height == 0) |
| 1723 return; | |
| 1724 | |
| 1725 // Ignore cursor shape data if requested by user. | |
| 1726 if (viewer.options.ignoreCursorUpdates) { | |
| 1727 int bytesPerRow = (width + 7) / 8; | |
| 1728 int bytesMaskData = bytesPerRow * height; | |
| 0 | 1729 |
| 4 | 1730 if (encodingType == rfb.EncodingXCursor) { |
| 1731 rfb.skipBytes(6 + bytesMaskData * 2); | |
| 1732 } else { | |
| 1733 // rfb.EncodingRichCursor | |
| 1734 rfb.skipBytes(width * height * bytesPixel + bytesMaskData); | |
| 1735 } | |
| 1736 return; | |
| 1737 } | |
| 0 | 1738 |
| 4 | 1739 // Decode cursor pixel data. |
| 1740 softCursorSource = decodeCursorShape(encodingType, width, height); | |
| 0 | 1741 |
| 4 | 1742 // Set original (non-scaled) cursor dimensions. |
| 1743 origCursorWidth = width; | |
| 1744 origCursorHeight = height; | |
| 1745 origHotX = xhot; | |
| 1746 origHotY = yhot; | |
| 0 | 1747 |
| 4 | 1748 // Create off-screen cursor image. |
| 1749 createSoftCursor(); | |
| 0 | 1750 |
| 4 | 1751 // Show the cursor. |
| 1752 showSoftCursor = true; | |
| 1753 repaint(viewer.deferCursorUpdates, cursorX - hotX, cursorY - hotY, | |
| 1754 cursorWidth, cursorHeight); | |
| 1755 } | |
| 0 | 1756 |
| 4 | 1757 // |
| 1758 // decodeCursorShape(). Decode cursor pixel data and return | |
| 1759 // corresponding MemoryImageSource instance. | |
| 1760 // | |
| 1761 | |
| 1762 synchronized MemoryImageSource decodeCursorShape(int encodingType, | |
| 1763 int width, int height) throws IOException { | |
| 0 | 1764 |
| 4 | 1765 int bytesPerRow = (width + 7) / 8; |
| 1766 int bytesMaskData = bytesPerRow * height; | |
| 0 | 1767 |
| 4 | 1768 int[] softCursorPixels = new int[width * height]; |
| 1769 | |
| 1770 if (encodingType == rfb.EncodingXCursor) { | |
| 0 | 1771 |
| 4 | 1772 // Read foreground and background colors of the cursor. |
| 1773 byte[] rgb = new byte[6]; | |
| 1774 rfb.readFully(rgb); | |
| 1775 int[] colors = { | |
| 1776 (0xFF000000 | (rgb[3] & 0xFF) << 16 | (rgb[4] & 0xFF) << 8 | (rgb[5] & 0xFF)), | |
| 1777 (0xFF000000 | (rgb[0] & 0xFF) << 16 | (rgb[1] & 0xFF) << 8 | (rgb[2] & 0xFF)) }; | |
| 0 | 1778 |
| 4 | 1779 // Read pixel and mask data. |
| 1780 byte[] pixBuf = new byte[bytesMaskData]; | |
| 1781 rfb.readFully(pixBuf); | |
| 1782 byte[] maskBuf = new byte[bytesMaskData]; | |
| 1783 rfb.readFully(maskBuf); | |
| 0 | 1784 |
| 4 | 1785 // Decode pixel data into softCursorPixels[]. |
| 1786 byte pixByte, maskByte; | |
| 1787 int x, y, n, result; | |
| 1788 int i = 0; | |
| 1789 for (y = 0; y < height; y++) { | |
| 1790 for (x = 0; x < width / 8; x++) { | |
| 1791 pixByte = pixBuf[y * bytesPerRow + x]; | |
| 1792 maskByte = maskBuf[y * bytesPerRow + x]; | |
| 1793 for (n = 7; n >= 0; n--) { | |
| 1794 if ((maskByte >> n & 1) != 0) { | |
| 1795 result = colors[pixByte >> n & 1]; | |
| 1796 } else { | |
| 1797 result = 0; // Transparent pixel | |
| 1798 } | |
| 1799 softCursorPixels[i++] = result; | |
| 1800 } | |
| 1801 } | |
| 1802 for (n = 7; n >= 8 - width % 8; n--) { | |
| 1803 if ((maskBuf[y * bytesPerRow + x] >> n & 1) != 0) { | |
| 1804 result = colors[pixBuf[y * bytesPerRow + x] >> n & 1]; | |
| 1805 } else { | |
| 1806 result = 0; // Transparent pixel | |
| 1807 } | |
| 1808 softCursorPixels[i++] = result; | |
| 1809 } | |
| 1810 } | |
| 0 | 1811 |
| 4 | 1812 } else { |
| 1813 // encodingType == rfb.EncodingRichCursor | |
| 0 | 1814 |
| 4 | 1815 // Read pixel and mask data. |
| 1816 byte[] pixBuf = new byte[width * height * bytesPixel]; | |
| 1817 rfb.readFully(pixBuf); | |
| 1818 byte[] maskBuf = new byte[bytesMaskData]; | |
| 1819 rfb.readFully(maskBuf); | |
| 0 | 1820 |
| 4 | 1821 // Decode pixel data into softCursorPixels[]. |
| 1822 byte pixByte, maskByte; | |
| 1823 int x, y, n, result; | |
| 1824 int i = 0; | |
| 1825 for (y = 0; y < height; y++) { | |
| 1826 for (x = 0; x < width / 8; x++) { | |
| 1827 maskByte = maskBuf[y * bytesPerRow + x]; | |
| 1828 for (n = 7; n >= 0; n--) { | |
| 1829 if ((maskByte >> n & 1) != 0) { | |
| 1830 if (bytesPixel == 1) { | |
| 1831 result = cm8.getRGB(pixBuf[i]); | |
| 1832 } else { | |
| 1833 result = 0xFF000000 | |
| 1834 | (pixBuf[i * 4 + 2] & 0xFF) << 16 | |
| 1835 | (pixBuf[i * 4 + 1] & 0xFF) << 8 | |
| 1836 | (pixBuf[i * 4] & 0xFF); | |
| 1837 } | |
| 1838 } else { | |
| 1839 result = 0; // Transparent pixel | |
| 1840 } | |
| 1841 softCursorPixels[i++] = result; | |
| 1842 } | |
| 1843 } | |
| 1844 for (n = 7; n >= 8 - width % 8; n--) { | |
| 1845 if ((maskBuf[y * bytesPerRow + x] >> n & 1) != 0) { | |
| 1846 if (bytesPixel == 1) { | |
| 1847 result = cm8.getRGB(pixBuf[i]); | |
| 1848 } else { | |
| 1849 result = 0xFF000000 | |
| 1850 | (pixBuf[i * 4 + 2] & 0xFF) << 16 | |
| 1851 | (pixBuf[i * 4 + 1] & 0xFF) << 8 | |
| 1852 | (pixBuf[i * 4] & 0xFF); | |
| 1853 } | |
| 1854 } else { | |
| 1855 result = 0; // Transparent pixel | |
| 1856 } | |
| 1857 softCursorPixels[i++] = result; | |
| 1858 } | |
| 1859 } | |
| 0 | 1860 |
| 4 | 1861 } |
| 0 | 1862 |
| 4 | 1863 return new MemoryImageSource(width, height, softCursorPixels, 0, width); |
| 0 | 1864 } |
| 4 | 1865 |
| 1866 // | |
| 1867 // createSoftCursor(). Assign softCursor new Image (scaled if necessary). | |
| 1868 // Uses softCursorSource as a source for new cursor image. | |
| 1869 // | |
| 0 | 1870 |
| 4 | 1871 synchronized void createSoftCursor() { |
| 0 | 1872 |
| 4 | 1873 if (softCursorSource == null) |
| 1874 return; | |
| 1875 | |
| 1876 int scaleCursor = viewer.options.scaleCursor; | |
| 1877 if (scaleCursor == 0 || !inputEnabled) | |
| 1878 scaleCursor = 100; | |
| 0 | 1879 |
| 4 | 1880 // Save original cursor coordinates. |
| 1881 int x = cursorX - hotX; | |
| 1882 int y = cursorY - hotY; | |
| 1883 int w = cursorWidth; | |
| 1884 int h = cursorHeight; | |
| 0 | 1885 |
| 4 | 1886 cursorWidth = (origCursorWidth * scaleCursor + 50) / 100; |
| 1887 cursorHeight = (origCursorHeight * scaleCursor + 50) / 100; | |
| 1888 hotX = (origHotX * scaleCursor + 50) / 100; | |
| 1889 hotY = (origHotY * scaleCursor + 50) / 100; | |
| 1890 softCursor = Toolkit.getDefaultToolkit().createImage(softCursorSource); | |
| 0 | 1891 |
| 4 | 1892 if (scaleCursor != 100) { |
| 1893 softCursor = softCursor.getScaledInstance(cursorWidth, | |
| 1894 cursorHeight, Image.SCALE_SMOOTH); | |
| 1895 } | |
| 0 | 1896 |
| 4 | 1897 if (showSoftCursor) { |
| 1898 // Compute screen area to update. | |
| 1899 x = Math.min(x, cursorX - hotX); | |
| 1900 y = Math.min(y, cursorY - hotY); | |
| 1901 w = Math.max(w, cursorWidth); | |
| 1902 h = Math.max(h, cursorHeight); | |
| 0 | 1903 |
| 4 | 1904 repaint(viewer.deferCursorUpdates, x, y, w, h); |
| 1905 } | |
| 1906 } | |
| 0 | 1907 |
| 4 | 1908 // |
| 1909 // softCursorMove(). Moves soft cursor into a particular location. | |
| 1910 // | |
| 0 | 1911 |
| 4 | 1912 synchronized void softCursorMove(int x, int y) { |
| 1913 int oldX = cursorX; | |
| 1914 int oldY = cursorY; | |
| 1915 cursorX = x; | |
| 1916 cursorY = y; | |
| 1917 if (showSoftCursor) { | |
| 1918 repaint(viewer.deferCursorUpdates, oldX - hotX, oldY - hotY, | |
| 1919 cursorWidth, cursorHeight); | |
| 1920 repaint(viewer.deferCursorUpdates, cursorX - hotX, cursorY - hotY, | |
| 1921 cursorWidth, cursorHeight); | |
| 1922 } | |
| 1923 } | |
| 0 | 1924 |
| 4 | 1925 // |
| 1926 // softCursorFree(). Remove soft cursor, dispose resources. | |
| 1927 // | |
| 0 | 1928 |
| 4 | 1929 synchronized void softCursorFree() { |
| 1930 if (showSoftCursor) { | |
| 1931 showSoftCursor = false; | |
| 1932 softCursor = null; | |
| 1933 softCursorSource = null; | |
| 0 | 1934 |
| 4 | 1935 repaint(viewer.deferCursorUpdates, cursorX - hotX, cursorY - hotY, |
| 1936 cursorWidth, cursorHeight); | |
| 1937 } | |
| 1938 } | |
| 0 | 1939 } |