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annotate src/main/java/com/glavsoft/rfb/encoding/decoder/ZRLEDecoder.java @ 560:bdd659ce8e64

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fix null renderer
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 31 Jan 2020 11:41:13 +0900
parents ff4c1972aa2e
children 5bbe53b47d0a
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1 // Copyright (C) 2010, 2011, 2012, 2013 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.encoding.decoder;
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26
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27 import com.glavsoft.drawing.Renderer;
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28 import com.glavsoft.exceptions.TransportException;
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29 import com.glavsoft.rfb.encoding.EncodingType;
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30 import com.glavsoft.rfb.protocol.ReceiverTask;
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31 import com.glavsoft.transport.Reader;
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32 import jp.ac.u_ryukyu.treevnc.CheckDelay;
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33 import jp.ac.u_ryukyu.treevnc.TreeRFBProto;
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34
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35 import java.io.UnsupportedEncodingException;
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36 import java.nio.ByteBuffer;
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37 import java.util.LinkedList;
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38 import java.util.zip.Deflater;
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39
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40 public class ZRLEDecoder extends ZlibDecoder {
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41 private static final int MAX_TILE_SIZE = 64;
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42 private int[] decodedBitmap;
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43 private int[] palette;
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44
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45 class TileLoop {
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46 private final boolean blocking;
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47 private int deflate_size = 55507;
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48 private ByteBuffer c1;
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49 private int width; // phase2 length
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50 private FramebufferUpdateRectangle c1rect;
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51 private int prevLineOffset;
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52 private int prevC1Offset;
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53 private int prevC1LineOffset;
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54 private int prevoffset;
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55 private Deflater deflater;
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56
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57 /**
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58 * Multicast framebufferUpdate to children.
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59 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet.
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60 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset().
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61 * <p>
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62 * Haeder
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63 * messageID ( FrameBuffer Update
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64 * 1 byte padding
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65 * 2 byte numberofrectangle
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66 * 2 - U16 - x-position
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67 * 2 - U16 - y-position
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68 * 2 - U16 - width
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69 * 2 - U16 - height
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70 * 4 - S32 - encoding-type
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71 * 4 byte datalengths
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72 * datalengths databyte
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73 *
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74 * @throws TransportException
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75 * @throws UnsupportedEncodingException
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76 */
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77
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78 public TileLoop(int offset) {
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79 prevoffset = prevLineOffset = offset;
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80 prevC1Offset = 0;
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81 if (offset < deflate_size + spanGap) {
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82 // packet size fit in broadcast send it all at once
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83 blocking = false;
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84 } else
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85 blocking = true;
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86 }
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87
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88 private void zrleeBlocking(TreeRFBProto rfb, ByteBuffer header, FramebufferUpdateRectangle rect, byte bytes[]) {
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89 // dump32(inputs);
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90 deflater = rfb.deflater;
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91 c1rect = new FramebufferUpdateRectangle(rect.x, rect.y, 0, 0);
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92 newMulticastPacket(rfb, rect);
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93 c1.put(header.get(0));
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94 if (!blocking) {
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95 deflater.setInput(bytes, 0, prevoffset);
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96 deflater.deflate(c1);
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97 flushMuticast(rfb);
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98 }
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99 return;
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100 }
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101
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102 private void newMulticastPacket(TreeRFBProto rfb, FramebufferUpdateRectangle rect) {
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103 c1 = rfb.multicastqueue.allocate(deflate_size + 20);
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104 c1.limit(c1.limit() - 20);
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105 if (rfb.addSerialNum)
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106 c1.putLong(rfb.counter++);
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107 if (rfb.checkDelay)
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108 CheckDelay.checkDelay(c1, rect.x, rect.y, rect.width, rect.height, System.currentTimeMillis(), EncodingType.CHECK_DELAY);
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109 c1.put((byte) 0);
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110 c1.put((byte) 0);
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111 c1.putShort((short) 0);
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112 c1.position(c1.position() + 12);
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113 c1.putInt(0); // should be data length
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114 prevC1Offset = c1.position();
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115 prevC1LineOffset = prevC1Offset;
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116 width = 0;
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117 c1rect.width = c1rect.height = 0;
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118 }
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119
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120 int spanGap = 128;
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121 /**
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122 * Series of tiles compose at most three rectangles. SYNC_FLUSH is necessary on
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123 * rectangle boundaries.
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124 * <p>
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125 * +----+
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126 * | | phase 0
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127 * +---------------+
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128 * | | phase 1
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129 * +----+----------+
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130 * | | phase 2
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131 * +----+
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132 * <p>
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133 * Broadcast packet have to less than 64kbytes
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134 * A tile 64x64x3 11288byte, a packet can contain 5 raw tiles, when these are
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135 * compressed 10 to 100 tiles can be stored. It is impossible to predict the
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136 * compression rate. To check the compressed capacity, Deflate.needsInputs() can
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137 * be used. If needsInputs() is false on SYNC_FLUSH, smaller input is necessary.
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138 * <p>
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139 * We'll try 512 tiles before SYNC_FLUSH in a phase, if it fails try flush former 256 tiles.
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140 * If it will failed again, flush the previous line and do flush 512 tiles in new Packet.
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141 * If it failed again try former 256 tiles flushed, if this failes again dicard the former half.
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142 * The last case cannot happen but former 256 tiles have to be flushed, because the next 256 lines
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143 * may failed again and restart the from this point.
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144 * The next packet start with later 256 tiles filled and unflushed.
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145 *
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146 * @param rfb
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147 * @param last
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148 * @param rect
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149 * @param bytes
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150 * @param offset
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151 * @param tileW
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152 * @param tileH
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153 */
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154
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155 int MAX_ZTILE = 512;
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156
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157 public void multicastPut(TreeRFBProto rfb, boolean last, FramebufferUpdateRectangle rect, byte[] bytes, int offset, int tileW, int tileH) {
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158 if (!blocking) return;
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159 int span = offset - prevoffset;
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160 deflater.setInput(bytes, prevoffset, span);
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161 prevoffset = offset;
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162 width += tileW;
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163 if (c1rect.x > rect.x) { // phase 0
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164 if (c1rect.x + c1rect.width < rect.x + rect.width) {
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165 compressAndCheckFlush(rfb, rect, bytes, offset, false, last);
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166 } else {
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167 c1rect.width = rect.x + rect.width - c1rect.x;
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168 prevC1LineOffset = c1.position();
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169 compressAndCheckFlush(rfb, rect, bytes, offset, true, last);
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170 }
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171 } else { // phase 1
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172 if (width >= rect.width) {
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173 c1rect.width = rect.width;
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174 width = 0;
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175 prevLineOffset = offset;
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176 prevC1LineOffset = c1.position();
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177 compressAndCheckFlush(rfb, rect, bytes, offset, true, last);
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178 } else {
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179 compressAndCheckFlush(rfb, rect, bytes, offset, false, last);
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180
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181
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182 }
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183 }
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184 }
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185
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186 private boolean compressAndCheckFlush(TreeRFBProto rfb, FramebufferUpdateRectangle rect, byte[] bytes, int offset, boolean flush, boolean last) {
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187 deflater.deflate(c1, Deflater.NO_FLUSH);
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188 int headerLength = 20;
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189 if (!deflater.needsInput()) {
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190 deflater.finish();
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191 if (offset != prevLineOffset) {
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192 // fix phase1 rectangle header
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193 //c1.putShort(prevC1Offset - 16, (short) c1rect.x);
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194 //c1.putShort(prevC1Offset - 14, (short) c1rect.y);
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195 //c1.putShort(prevC1Offset - 12, (short) c1rect.width);
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196 //c1.putShort(prevC1Offset - 10, (short) c1rect.height);
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197 //c1.putInt(prevC1Offset - 8, EncodingType.ZRLEE.getId());
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198 //c1.putInt(prevC1Offset - 4, c1.position() - prevC1LineOffset - 12); // data length
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199 //c1.putShort(2, (short) (c1.getShort(2) + 1)); // increment rectangle count
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200
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201
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202 //if (c1rect.x == rect.x) { // phase0 needs no phase1
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203 // // make header space for phase2
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204 // c1.limit(c1.limit() + headerLength);
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205 // int pos = c1.position() - 1;
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206 // // to make rectangle header shift last bytes
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207 // for (int i = 0; i < pos - prevC1LineOffset; i++) {
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208 // c1.array()[pos + headerLength - i] = c1.array()[pos - i];
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209 // }
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210 // prevC1Offset = prevC1LineOffset;
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211 //}
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212 }
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213 flushRectangle(rect);
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214 flushMuticast(rfb);
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215 newMulticastPacket(rfb, rect);
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216 deflater.deflate(c1, Deflater.NO_FLUSH);
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217 return true;
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218 } else if (last) {
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219 flushRectangle(rect);
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220 flushMuticast(rfb);
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221 return true;
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222 }
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223 return false;
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224 }
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225
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226 /**
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227 * fix rectangle header
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228 * create next rectangle header
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229 * update position paramater
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230 * send muticast pacate if nessesally
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231 */
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232 private void flushRectangle(FramebufferUpdateRectangle rect) {
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233 c1.putShort(prevC1Offset - 16, (short) c1rect.x);
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234 c1.putShort(prevC1Offset - 14, (short) c1rect.y);
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235 c1.putShort(prevC1Offset - 12, (short) c1rect.width);
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236 c1.putShort(prevC1Offset - 10, (short) c1rect.height);
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237 c1.putInt(prevC1Offset - 8, EncodingType.ZRLEE.getId());
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238 c1.putInt(prevC1Offset - 4, c1.position() - prevC1Offset - 12); // data length
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239 c1.putShort(2, (short) (c1.getShort(2) + 1)); // increment rectangle count
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240 prevC1Offset = c1.position();
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241
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242 nextPhase(rect);
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243 }
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244
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245 private void nextPhase(FramebufferUpdateRectangle rect) {
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246 if (c1rect.x + c1rect.width < rect.x + rect.width) {
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247 c1rect.x = c1rect.width; // next rectangle is phase 1
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248 } else {
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249 c1rect.x = rect.x;
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250 c1rect.y += c1rect.height;
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251 }
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252 width = 0;
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253 }
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254
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255 private void flushMuticast(TreeRFBProto rfb) {
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256 c1.flip();
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257 //System.out.println("multicastPut: " + c1rect + " length: " + (c1.remaining()-c1headerPos-header.limit()));
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258 deflater.reset();
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259
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260 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>();
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261 bufs.add(c1);
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262 rfb.getContext().checkFrameBufferRectanble(c1);
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263 if (rfb.isTreeManager() && rfb.connectionPresenter.isUseMulticast()) {
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264 for (ByteBuffer buf : bufs)
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265 rfb.getViewer().getRfbBroadcastListener().multicastUpdateRectangle(buf);
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266 } else {
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267 rfb.multicastqueue.put(bufs);
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268 }
528
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269 }
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270 }
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271
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272 @Override
0
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273 public void decode(Reader reader, Renderer renderer,
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274 FramebufferUpdateRectangle rect) throws TransportException {
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275 int zippedLength = (int) reader.readUInt32();
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276 if (0 == zippedLength) return;
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277 int length = rect.width * rect.height * renderer.getBytesPerPixel();
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diff changeset
278 byte[] bytes = unzip(reader, zippedLength, length, rect.getEncodingType());
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279 decode1(renderer, null, rect, bytes, zippedLength, null);
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280 }
533
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281
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282
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283 public void multicastDecode(Reader reader, Renderer renderer,
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284 FramebufferUpdateRectangle rect, TreeRFBProto rfb) throws TransportException {
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285 ByteBuffer header = ByteBuffer.allocate(16);
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286 reader.read(header.array());
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287 int zippedLength = (int) reader.readUInt32();
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288 if (0 == zippedLength) return;
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289 int length = rect.width * rect.height * renderer.getBytesPerPixel();
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290 byte[] bytes = unzip(reader, zippedLength, length, rect.getEncodingType());
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291 decode1(renderer, header, rect, bytes, zippedLength, rfb);
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292 }
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293
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294 public void decode1(Renderer renderer, ByteBuffer header, FramebufferUpdateRectangle rect, byte[] bytes, int zippedLength, TreeRFBProto rfbProto) throws TransportException {
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295 int offset = zippedLength;
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296 int maxX = rect.x + rect.width;
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297 int maxY = rect.y + rect.height;
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298
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299 TileLoop tileloop = new TileLoop(zippedLength);
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300 //System.out.println("decode1: "+rect.toString());
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301 if (null == palette) {
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302 palette = new int[128];
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303 }
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304 if (null == decodedBitmap) {
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305 decodedBitmap = new int[MAX_TILE_SIZE * MAX_TILE_SIZE];
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306 }
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307
539
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308 if (rfbProto.multicastBlocking) {
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309 tileloop.zrleeBlocking(rfbProto, header, rect, bytes);
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310 }
539
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riono
parents: 538
diff changeset
311 try {
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
312 for (int tileY = rect.y; tileY < maxY; tileY += MAX_TILE_SIZE) {
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
313 int tileHeight = Math.min(maxY - tileY, MAX_TILE_SIZE);
541
355954eac478 fix ZRLEDecoder
riono
parents: 539
diff changeset
314 tileloop.c1rect.height += tileHeight;
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
315
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
316 for (int tileX = rect.x; tileX < maxX; tileX += MAX_TILE_SIZE) {
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
317 int tileWidth = Math.min(maxX - tileX, MAX_TILE_SIZE);
541
355954eac478 fix ZRLEDecoder
riono
parents: 539
diff changeset
318 tileloop.c1rect.width += tileWidth;
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
319 int subencoding = bytes[offset++] & 0x0ff;
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
320 if (subencoding != 0)
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
321 System.out.println("----------------" + subencoding);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
322 // 128 -plain RLE, 130-255 - Palette RLE
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
323 boolean isRle = (subencoding & 128) != 0;
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
324 // 2 to 16 for raw packed palette data, 130 to 255 for Palette RLE (subencoding - 128)
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
325 int paletteSize = subencoding & 127;
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
326 offset += readPalette(bytes, offset, renderer, paletteSize);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
327 if (1 == subencoding) { // A solid tile consisting of a single colour
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
328 renderer.fillRect(palette[0], tileX, tileY, tileWidth, tileHeight);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
329 } else if (isRle) {
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
330 if (0 == paletteSize) { // subencoding == 128 (or paletteSize == 0) - Plain RLE
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
331 offset += decodePlainRle(bytes, offset, renderer, tileX, tileY, tileWidth, tileHeight);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
332 } else {
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
333 offset += decodePaletteRle(bytes, offset, renderer, tileX, tileY, tileWidth, tileHeight);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
334 }
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
335 } else {
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
336 if (0 == paletteSize) { // subencoding == 0 (or paletteSize == 0) - raw CPIXEL data
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
337 offset += decodeRaw(bytes, offset, renderer, tileX, tileY, tileWidth, tileHeight);
63
84f1c39ba3bf temp commit
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 59
diff changeset
338 // System.out.println("offset:"+offset);
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
339 } else {
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
340 offset += decodePacked(bytes, offset, renderer, paletteSize, tileX, tileY, tileWidth, tileHeight);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
341 }
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
342 }
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
343 if (rfbProto != null && rfbProto.multicastBlocking)
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
344 tileloop.multicastPut(rfbProto, false, rect, bytes, offset, tileWidth, tileHeight);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
345 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
346 }
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
347 if (rfbProto != null && rfbProto.multicastBlocking)
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
348 tileloop.multicastPut(rfbProto, true, rect, bytes, offset, 0, 0);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
349 } catch (Exception e) {
560
bdd659ce8e64 fix null renderer
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 552
diff changeset
350 e.printStackTrace();
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
351 if (rfbProto != null && rfbProto.multicastBlocking)
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
352 tileloop.multicastPut(rfbProto, true, rect, bytes, offset, 0, 0);
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
353 throw e;
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
354 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
355 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
356
539
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
357
cb7c23cca231 fix ZRLEDecoder
riono
parents: 538
diff changeset
358
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
359 private int decodePlainRle(byte[] bytes, int offset, Renderer renderer,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
360 int tileX, int tileY, int tileWidth, int tileHeight) {
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
361 int bytesPerCPixel = renderer.getBytesPerCPixel();
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
362 int decodedOffset = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
363 int decodedEnd = tileWidth * tileHeight;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
364 int index = offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
365 while (decodedOffset < decodedEnd) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
366 int color = renderer.getCompactPixelColor(bytes, index);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
367 index += bytesPerCPixel;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
368 int rlength = 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
369 do {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
370 rlength += bytes[index] & 0x0ff;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
371 } while ((bytes[index++] & 0x0ff) == 255);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
372 assert rlength <= decodedEnd - decodedOffset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
373 renderer.fillColorBitmapWithColor(decodedBitmap, decodedOffset, rlength, color);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
374 decodedOffset += rlength;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
375 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
376 renderer.drawColoredBitmap(decodedBitmap, tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
377 return index - offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
378 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
379
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
380 private int decodePaletteRle(byte[] bytes, int offset, Renderer renderer,
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
381 int tileX, int tileY, int tileWidth, int tileHeight) {
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
382 int decodedOffset = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
383 int decodedEnd = tileWidth * tileHeight;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
384 int index = offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
385 while (decodedOffset < decodedEnd) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
386 int colorIndex = bytes[index++];
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
387 int color = palette[colorIndex & 127];
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
388 int rlength = 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
389 if ((colorIndex & 128) != 0) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
390 do {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
391 rlength += bytes[index] & 0x0ff;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
392 } while (bytes[index++] == (byte) 255);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
393 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
394 assert rlength <= decodedEnd - decodedOffset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
395 renderer.fillColorBitmapWithColor(decodedBitmap, decodedOffset, rlength, color);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
396 decodedOffset += rlength;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
397 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
398 renderer.drawColoredBitmap(decodedBitmap, tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
399 return index - offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
400 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
401
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
402 private int decodePacked(byte[] bytes, int offset, Renderer renderer,
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
403 int paletteSize, int tileX, int tileY, int tileWidth, int tileHeight) {
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
404 int bitsPerPalletedPixel = paletteSize > 16 ? 8 : paletteSize > 4 ? 4
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
405 : paletteSize > 2 ? 2 : 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
406 int packedOffset = offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
407 int decodedOffset = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
408 for (int i = 0; i < tileHeight; ++i) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
409 int decodedRowEnd = decodedOffset + tileWidth;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
410 int byteProcessed = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
411 int bitsRemain = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
412
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
413 while (decodedOffset < decodedRowEnd) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
414 if (bitsRemain == 0) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
415 byteProcessed = bytes[packedOffset++];
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
416 bitsRemain = 8;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
417 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
418 bitsRemain -= bitsPerPalletedPixel;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
419 int index = byteProcessed >> bitsRemain & (1 << bitsPerPalletedPixel) - 1 & 127;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
420 int color = palette[index];
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
421 renderer.fillColorBitmapWithColor(decodedBitmap, decodedOffset, 1, color);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
422 ++decodedOffset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
423 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
424 }
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
425 renderer.drawColoredBitmap(decodedBitmap, tileX, tileY, tileWidth, tileHeight);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
426 return packedOffset - offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
427 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
428
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
429 private int decodeRaw(byte[] bytes, int offset, Renderer renderer,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
430 int tileX, int tileY, int tileWidth, int tileHeight) throws TransportException {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
431 return renderer.drawCompactBytes(bytes, offset, tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
432 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
433
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
434 private int readPalette(byte[] bytes, int offset, Renderer renderer, int paletteSize) {
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
435 final int bytesPerCPixel = renderer.getBytesPerCPixel();
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
436 for (int i=0; i<paletteSize; ++i) {
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
437 palette[i] = renderer.getCompactPixelColor(bytes, offset + i* bytesPerCPixel);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
438 }
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
439 return paletteSize * bytesPerCPixel;
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
440 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
441
526
fcd833c2e148 Multicast Bloking in ZRLEDecoder
riono210
parents: 515
diff changeset
442
fcd833c2e148 Multicast Bloking in ZRLEDecoder
riono210
parents: 515
diff changeset
443
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
444 }