Mercurial > hg > Applications > TreeVNC

annotate src/main/java/com/glavsoft/rfb/protocol/ReceiverTask.java @ 27:85958cba5d15

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Create new constructor in TreeTask
author one
date Fri, 31 Aug 2012 18:21:20 +0900
parents 73b13bc335c2
children 18fad65bc447
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // Copyright (C) 2010, 2011 GlavSoft LLC.
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2 // All rights reserved.
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3 //
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4 //-------------------------------------------------------------------------
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5 // This file is part of the TightVNC software. Please visit our Web site:
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6 //
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7 // http://www.tightvnc.com/
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8 //
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9 // This program is free software; you can redistribute it and/or modify
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10 // it under the terms of the GNU General Public License as published by
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11 // the Free Software Foundation; either version 2 of the License, or
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12 // (at your option) any later version.
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13 //
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14 // This program is distributed in the hope that it will be useful,
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 // GNU General Public License for more details.
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18 //
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19 // You should have received a copy of the GNU General Public License along
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20 // with this program; if not, write to the Free Software Foundation, Inc.,
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 //-------------------------------------------------------------------------
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23 //
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24
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25 package com.glavsoft.rfb.protocol;
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26
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27 import com.glavsoft.drawing.Renderer;
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28 import com.glavsoft.exceptions.CommonException;
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29 import com.glavsoft.exceptions.ProtocolException;
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30 import com.glavsoft.exceptions.TransportException;
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31 import com.glavsoft.rfb.ClipboardController;
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32 import com.glavsoft.rfb.IRepaintController;
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33 import com.glavsoft.rfb.client.FramebufferUpdateRequestMessage;
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34 import com.glavsoft.rfb.client.SetPixelFormatMessage;
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35 import com.glavsoft.rfb.encoding.EncodingType;
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36 import com.glavsoft.rfb.encoding.PixelFormat;
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37 import com.glavsoft.rfb.encoding.decoder.Decoder;
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38 import com.glavsoft.rfb.encoding.decoder.DecodersContainer;
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39 import com.glavsoft.rfb.encoding.decoder.FramebufferUpdateRectangle;
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40 import com.glavsoft.rfb.encoding.decoder.RichCursorDecoder;
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41 import com.glavsoft.transport.Reader;
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42
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43 import java.io.PrintWriter;
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44 import java.io.StringWriter;
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45 import java.util.logging.Logger;
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46
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47 import jp.ac.u_ryukyu.treevnc.server.MyRfbProtoProxy;
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48
0
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49 public class ReceiverTask implements Runnable {
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50 private static final byte FRAMEBUFFER_UPDATE = 0;
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51 private static final byte SET_COLOR_MAP_ENTRIES = 1;
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52 private static final byte BELL = 2;
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53 private static final byte SERVER_CUT_TEXT = 3;
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54
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55
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56 protected static Logger logger = Logger.getLogger("com.glavsoft.rfb.protocol.ReceiverTask");
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57 protected final Reader reader;
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58 private volatile boolean isRunning = false;
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59 protected Renderer renderer;
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60 protected final IRepaintController repaintController;
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61 private final ClipboardController clipboardController;
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62 protected final DecodersContainer decoders;
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63 protected FramebufferUpdateRequestMessage fullscreenFbUpdateIncrementalRequest;
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64 protected final ProtocolContext context;
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65 protected PixelFormat pixelFormat;
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66 protected boolean needSendPixelFormat;
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67
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68 public ReceiverTask(Reader reader,
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69 IRepaintController repaintController, ClipboardController clipboardController,
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70 DecodersContainer decoders, ProtocolContext context,boolean flag) {
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71 this.reader = reader;
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72 this.repaintController = repaintController;
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73 this.clipboardController = clipboardController;
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74 this.context = context;
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75 this.decoders = decoders;
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76 renderer = repaintController.createRenderer(reader, context.getFbWidth(), context.getFbHeight(),
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77 context.getPixelFormat());
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78 fullscreenFbUpdateIncrementalRequest =
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79 new FramebufferUpdateRequestMessage(0, 0, context.getFbWidth(), context.getFbHeight(), true);
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80 }
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81
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82 public ReceiverTask(Reader reader,
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83 IRepaintController repaintController, ClipboardController clipboardController,
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84 DecodersContainer decoders, ProtocolContext context) {
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85 this.reader = reader;
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86 this.repaintController = repaintController;
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87 this.clipboardController = clipboardController;
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88 this.context = context;
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89 this.decoders = decoders;
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90 renderer = repaintController.createRenderer(reader, context.getFbWidth(), context.getFbHeight(),
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91 context.getPixelFormat());
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92 fullscreenFbUpdateIncrementalRequest =
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93 new FramebufferUpdateRequestMessage(0, 0, context.getFbWidth(), context.getFbHeight(), true);
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94 }
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95
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96 @Override
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97 public void run() {
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98 isRunning = true;
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99 while (isRunning) {
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100 try {
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101 reader.mark(20);
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102 byte messageId = reader.readByte();
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103 switch (messageId) {
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104 case FRAMEBUFFER_UPDATE:
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105 // logger.fine("Server message: FramebufferUpdate (0)");
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106 framebufferUpdateMessage();
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107 break;
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108 case SET_COLOR_MAP_ENTRIES:
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109 logger.severe("Server message SetColorMapEntries is not implemented. Skip.");
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110 setColorMapEntries();
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111 break;
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112 case BELL:
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113 logger.fine("Server message: Bell");
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114 // System.out.print("\0007");
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115 // System.out.flush();
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116 break;
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117 case SERVER_CUT_TEXT:
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118 logger.fine("Server message: CutText (3)");
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119 serverCutText();
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120 break;
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121 default:
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122 logger.severe("Unsupported server message. Id = " + messageId);
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123 }
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124 } catch (TransportException e) {
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125 logger.severe("Close session: " + e.getMessage());
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126 if (isRunning) {
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127 context.cleanUpSession("Connection closed.");
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128 }
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129 stopTask();
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130 } catch (ProtocolException e) {
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131 logger.severe(e.getMessage());
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132 if (isRunning) {
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133 context.cleanUpSession(e.getMessage() + "\nConnection closed.");
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134 }
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135 stopTask();
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136 } catch (CommonException e) {
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137 logger.severe(e.getMessage());
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138 if (isRunning) {
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139 context.cleanUpSession("Connection closed.");
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140 }
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141 stopTask();
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142 } catch (Throwable te) {
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143 StringWriter sw = new StringWriter();
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144 PrintWriter pw = new PrintWriter(sw);
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145 te.printStackTrace(pw);
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146 if (isRunning) {
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147 context.cleanUpSession(te.getMessage() + "\n" + sw.toString());
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148 }
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149 stopTask();
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150 }
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151 }
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152 }
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153
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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154 private void setColorMapEntries() throws TransportException {
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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155 reader.readByte(); // padding
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156 reader.readUInt16(); // first color index
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157 int length = reader.readUInt16();
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158 while (length-- > 0) {
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159 reader.readUInt16(); // R
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160 reader.readUInt16(); // G
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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161 reader.readUInt16(); // B
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162 }
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163 }
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164
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165 private void serverCutText() throws TransportException {
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166 reader.readByte(); // padding
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167 reader.readInt16(); // padding
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168 int length = reader.readInt32() & Integer.MAX_VALUE;
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169 clipboardController.updateSystemClipboard(reader.readBytes(length));
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170 }
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171
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172 public void framebufferUpdateMessage() throws CommonException {
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173 reader.readByte(); // padding
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174 int numberOfRectangles = reader.readUInt16();
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175 while (numberOfRectangles-- > 0) {
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176 FramebufferUpdateRectangle rect = new FramebufferUpdateRectangle();
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177 rect.fill(reader);
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178
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179 Decoder decoder = decoders.getDecoderByType(rect.getEncodingType());
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180 logger.finest(rect.toString() + (0 == numberOfRectangles ? "\n---" : ""));
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181 if (decoder != null) {
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182 decoder.decode(reader, renderer, rect);
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183 repaintController.repaintBitmap(rect);
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184 } else if (rect.getEncodingType() == EncodingType.RICH_CURSOR) {
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185 RichCursorDecoder.getInstance().decode(reader, renderer, rect);
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186 repaintController.repaintCursor();
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187 } else if (rect.getEncodingType() == EncodingType.CURSOR_POS) {
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188 renderer.decodeCursorPosition(rect);
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189 repaintController.repaintCursor();
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190 } else if (rect.getEncodingType() == EncodingType.DESKTOP_SIZE) {
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191 fullscreenFbUpdateIncrementalRequest =
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192 new FramebufferUpdateRequestMessage(0, 0, rect.width, rect.height, true);
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193 synchronized (renderer) {
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194 renderer = repaintController.createRenderer(reader, rect.width, rect.height,
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195 context.getPixelFormat());
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196 }
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197 context.sendMessage(new FramebufferUpdateRequestMessage(0, 0, rect.width, rect.height, false));
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198 // repaintController.repaintCursor();
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199 } else
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200 throw new CommonException("Unprocessed encoding: " + rect.toString());
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201 }
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202 synchronized (this) {
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203 if (needSendPixelFormat) {
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204 needSendPixelFormat = false;
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205 context.setPixelFormat(pixelFormat);
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206 context.sendMessage(new SetPixelFormatMessage(pixelFormat));
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207 logger.fine("sent: "+pixelFormat);
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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208 context.sendRefreshMessage();
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209 logger.fine("sent: nonincremental fb update");
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210 } else {
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211 context.sendMessage(fullscreenFbUpdateIncrementalRequest);
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212 }
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parents:
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213 }
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parents:
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214 }
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215
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216 public synchronized void queueUpdatePixelFormat(PixelFormat pf) {
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217 pixelFormat = pf;
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218 needSendPixelFormat = true;
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219 // context.sendMessage(new FramebufferUpdateRequestMessage(0, 0, 1, 1, false));
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220 }
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parents:
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221
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parents:
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222 public void stopTask() {
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parents:
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223 isRunning = false;
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224 }
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225 }