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annotate src/main/java/com/glavsoft/rfb/encoding/decoder/ZRLEDecoder.java @ 540:b86d445685c7

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fix latest ZRLEDecoder
author e165729 <e165729@ie.u-ryukyu.ac.jp>
date Tue, 10 Sep 2019 17:03:16 +0900
parents 0d11471e0b5b
children 2840e75d2fd7
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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.transport.Reader;
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31 import jp.ac.u_ryukyu.treevnc.CheckDelay;
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32 import jp.ac.u_ryukyu.treevnc.TreeRFBProto;
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33
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34 import java.io.UnsupportedEncodingException;
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35 import java.nio.ByteBuffer;
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36 import java.util.LinkedList;
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37 import java.util.zip.Deflater;
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38
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39 public class ZRLEDecoder extends ZlibDecoder {
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40 private static final int MAX_TILE_SIZE = 64;
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41 private int[] decodedBitmap;
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42 private int[] palette;
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43
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44 // TileLoopクラス 複数の関数持ち
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45 class TileLoop {
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46 private final boolean blocking;
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47 private final int half;
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48 private int deflate_size = 65507; // 圧縮サイズ
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49 private ByteBuffer c1; // パケット?
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50 private int width; // phase2 length
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51 private FramebufferUpdateRectangle c1rect;
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52 private int c1headerPos;
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53 private int prevLineOffset;
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54 private int prevC1Offset;
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55 private int prevoffset;
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56 private Deflater deflater; // 圧縮クラス
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57 private int rectPos;
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58 private int ztileInLine;
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59 private int hwidth;
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60 private int hc1width;
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61 private int hoffset;
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62 private int hc1offset;
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63 private int discard;
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64
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65 /**
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66 * Multicast framebufferUpdate to children.
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67 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet.
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68 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset().
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69 *
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70 * framebufferUpdateを子nodeに送信する際に、ZLEを辞書をつけてZLEEのパケットに変換する
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71 * multicast queueに入れる。普通のレンダリングではis.reset()を使って同じストリームを読み込む
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72 *
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73 * Haeder
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74 * messageID ( FrameBuffer Update
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75 * 1 byte padding
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76 * 2 byte numberofrectangle
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77 * 2 - U16 - x-position
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78 * 2 - U16 - y-position
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79 * 2 - U16 - width
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80 * 2 - U16 - height
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81 * 4 - S32 - encoding-type
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82 * 4 byte datalengths
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83 * datalengths databyte
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84 *
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85 * @throws TransportException
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86 * @throws UnsupportedEncodingException
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87 */
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88
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89 // コンストラクタ
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90 public TileLoop(int offset) {
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91 prevoffset = prevLineOffset = prevC1Offset = offset; // オフセット記憶群に代入
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92 if (offset < deflate_size+spanGap) {
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93 // packet size fit in broadcast send it all at once
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94 // ブロードキャストに適合するパケットサイズで一斉に送信
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95 // 十分に小さいのでブロッキングせずに送信
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96 blocking = false;
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97 } else
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98 blocking = true;
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99 discard = 0; half = 0;
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100 }
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101
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102 // ?: ブロッキングしたものをc1に渡している?
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103 private void zrleeBlocking(TreeRFBProto rfb, ByteBuffer header, FramebufferUpdateRectangle rect, byte bytes[]) {
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104 // dump32(inputs);
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105 deflater = rfb.deflater; // TreeRFBProtでoverrideしたdeflater(圧縮クラス)を使用
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106 newMulticastPacket(rfb, rect);
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107 c1.put(header.get(0)); // headerの0番目をc1に入れる
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108 c1rect = new FramebufferUpdateRectangle(rect.x, rect.y, 0, 0); // rectangleのインスタンス生成
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109 if (!blocking) {
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110 deflater.setInput(bytes,0,prevoffset); // bytesを圧縮データとして0からprevoffsetまでをdeflater内部にセットする
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111 deflater.deflate(c1); // setInputで入力したデータを圧縮してc1に入れる
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112 flushMuticast(rfb);
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113 }
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114 return;
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115 }
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116
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117 // ?: c1を初期化? 要: TreeRFBProto読み
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118 private void newMulticastPacket(TreeRFBProto rfb, FramebufferUpdateRectangle rect) {
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119 c1 = rfb.multicastqueue.allocate(deflate_size); // ByteBufferのallocateと同等 容量確保
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120 if (rfb.addSerialNum) // 有効時
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121 c1.putLong(rfb.counter++); // 現在のByteBufferにlongの値を書き込み
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122 if (rfb.checkDelay) // 有効時
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123 CheckDelay.checkDelay(c1, rect.x, rect.y, rect.width, rect.height, System.currentTimeMillis(), EncodingType.CHECK_DELAY);
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124 c1headerPos = c1.position(); // c1の今の読み込み位置がどこにあるかを記憶　headerの位置
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125 // c1の初期化
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126 c1.put((byte) 0);
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127 c1.put((byte) 0);
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128 c1.putShort((short) 0);
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129 c1.position(c1.position()+16);
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130 c1.putInt(0); // should be data length
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131 width = 0;
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132 rectPos = 4;
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133 ztileInLine = 0;
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134 }
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135
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136 // oh... フィールド変数です...
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137 int spanGap = 128;
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138 /**
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139 *
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140 * Series of tiles compose at most three rectangles. SYNC_FLUSH is necessary on
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141 * rectangle boundaries.
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142 *
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143 * tileは最大3つの長方形に分けられる
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144 * をSYNC_FLUSH(パケットへ書き込み)する際は長方形の区切りの部分(境界部分)である必要がある
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145 *
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146 * +----+
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147 * | | | phase 0
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148 * +---------------+
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149 * | | | phase 1
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150 * +----+----------+
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151 * | | | phase 2
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152 * +----+
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153 *
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154 * Broadcast packet have to less than 64kbytes
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155 * A tile 64x64x3 11288byte, a packet can contain 5 raw tiles, when these are
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156 * compressed 10 to 100 tiles can be stored. It is impossible to predict the
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157 * compression rate. To check the compressed capacity, Deflate.needsInputs() can
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158 * be used. If needsInputs() is false on SYNC_FLUSH, smaller input is necessary.
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159 *
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160 * We'll try 512 tiles before SYNC_FLUSH in a phase, if it fails try flush former 256 tiles.
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161 * If it will failed again, flush the previous line and do flush 512 tiles in new Packet.
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162 * If it failed again try former 256 tiles flushed, if this failes again dicard the former half.
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163 * The last case cannot happen but former 256 tiles have to be flushed, because the next 256 lines
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164 * may failed again and restart the from this point.
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165 * The next packet start with later 256 tiles filled and unflushed.
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166 *
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167 * ブロードキャストパケットは64KB以内である必要がある
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168 * タイルは64(縦)x64(横)x3(RGB)= 11288Byteであり、圧縮しない場合だと5tile分をパケットに含めることができる
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169 * tileを圧縮すると10~100タイルを含めることができる。しかし、どのくらい圧縮できるかは予想不可能
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170 * 圧縮容量はDeflate.needsInputs()で確認することができる
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171 * SYNC_FLUSHした時にneedsInputs()がfalseだった場合、書き込みを少なくする必要がある→パケットの容量不足、書き込み量を減らす
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172 *
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173 * あるphaseでSYNC_FLUSHをする前に512tileの書き込みを試す
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174 * 失敗した場合半分の256tileで試す
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175 * 更に失敗した場合は前の行までで書き込みを行い、新しいパケットで512tileを試す
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176 * 更に更に失敗した場合は前半分の256タイルで書き込みを試す
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177 * それでも失敗した場合は前半分の256タイルを破棄する??
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178 * 最後の場合は起こりえないが、次の256タイル(後半部256タイル)が失敗して一つ前の段階(前半部256タイル)から再開する可能性があるため
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179 * 前半部を書き込む必要がある
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180 * 次のパケットは、後の256タイルがいっぱいになってフラッシュされた状態で始まります。(次のパケットは後半部の256タイルが書き込まれていない状態で始まる?)
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181 *
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182 * @param rfb
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183 * @param last
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184 * @param rect
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185 * @param bytes
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186 * @param offset
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187 * @param tileW
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188 * @param tileH
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189 */
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190
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191 int MAX_ZTILE = 512; // 一つのパケットで圧縮を試す、最大のタイル数
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192
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193 // フェーズ分けして、ブロッキングを行なっている部分
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194 public void multicastPut(TreeRFBProto rfb, boolean last, FramebufferUpdateRectangle rect, byte[] bytes, int offset, int tileW, int tileH) {
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195 if (!blocking) return;
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196 int span = offset - prevoffset; // 一つ前のオフセットと現在のオフセットの差を出す
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197 deflater.setInput(bytes,prevoffset,span); // prevoffsetからspanまでに圧縮データを入れる
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198 prevoffset = offset; // prevoffsetの更新
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199 c1rect.width += tileW; width += tileW; // prevoffsetが更新されたのでwidthもタイル一つ分更新?
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200 if (c1rect.x > rect.x) { // phase 0 引数の場所よりも容量が大きい場合 = 行の途中から始まって行の最後までの間
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201 if (c1rect.x+c1rect.width < rect.x+rect.width) {
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202 compressAndCheckFlush(rfb, rect, bytes, offset,false, last);
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203 } else {
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204 c1rect.width = rect.x+rect.width-c1rect.x ;
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205 c1rect.height += tileH;
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206 compressAndCheckFlush(rfb,rect,bytes,offset,true, last);
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207 }
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208 } else { // phase 1
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209 if (width >= rect.width) {
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210 c1rect.width = rect.width;
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211 width = 0;
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212 c1rect.height += tileH;
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213 prevLineOffset = offset;
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214 prevC1Offset = c1.position();
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215 compressAndCheckFlush(rfb,rect,bytes,offset,true, last);
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216 } else {
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217 compressAndCheckFlush(rfb,rect,bytes,offset,false, last);
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218 }
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219 }
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220 }
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221
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222
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223 // 圧縮とパケットへの書き込み
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224 private void compressAndCheckFlush(TreeRFBProto rfb, FramebufferUpdateRectangle rect, byte[] bytes, int offset, boolean flush, boolean last) {
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225 ztileInLine++;
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226 deflater.deflate(c1, Deflater.NO_FLUSH);
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227 int headerLength = 20;
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228 if (!deflater.needsInput()) {
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229 deflater.finish();
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230 if (offset != prevLineOffset) { // phase 2
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231 c1.limit(c1.limit() + headerLength);
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232 // to make rectangle header shift last bytes
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233 for (int i = 0; i < c1.position() - prevC1Offset; i++) {
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234 c1.array()[prevC1Offset + headerLength - i] = c1.array()[prevC1Offset - i];
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235 }
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236 c1.putShort(prevC1Offset + 1, (short) c1rect.x);
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237 c1.putShort(rectPos + 3, (short) c1rect.y);
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238 c1.putShort(rectPos + 5, (short) c1rect.width);
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239 c1.putShort(rectPos + 7, (short) c1rect.height);
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240 c1.putInt(rectPos + 9, EncodingType.ZRLEE.getId());
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241 c1.putInt(rectPos + 13, c1.position() - rectPos - 12); // data length
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242 c1.putShort(2, (short) (c1.getShort(2) + 1)); // increment rectangle count
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243 }
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244 flushMuticast(rfb);
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245 newMulticastPacket(rfb, rect);
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246 deflater.deflate(c1, Deflater.NO_FLUSH);
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247 }
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248 nextRectangle(rect);
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249 }
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250
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251 /**
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252 * fix rectangle header
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253 * create next rectangle header
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254 * update position paramater
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255 * send muticast pacate if nessesally
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256 */
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257 private void flushRectangle(FramebufferUpdateRectangle rect) {
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258 c1.putShort(rectPos + 0, (short)c1rect.x);
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259 c1.putShort(rectPos + 2, (short)c1rect.y);
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diff changeset
260 c1.putShort(rectPos + 4, (short)c1rect.width);
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diff changeset
261 c1.putShort(rectPos + 6, (short)c1rect.height);
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262 c1.putInt(rectPos + 8,EncodingType.ZRLEE.getId());
532
9292035b8d93 fix forloop
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diff changeset
263 c1.putInt(rectPos + 12, c1.position()-rectPos-12); // data length
529
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anatofuz
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diff changeset
264 rectPos = c1.position();
532
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diff changeset
265 c1.putShort(2,(short)(c1.getShort(2)+1)); // increment rectangle count
9292035b8d93 fix forloop
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parents: 531
diff changeset
266 nextRectangle(rect);
534
a3d0ba67e8cf try 512 tiles / 256 tiles flush
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 533
diff changeset
267 ztileInLine = 0;
a3d0ba67e8cf try 512 tiles / 256 tiles flush
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 533
diff changeset
268 }
a3d0ba67e8cf try 512 tiles / 256 tiles flush
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parents: 533
diff changeset
269
532
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diff changeset
270 private void nextRectangle(FramebufferUpdateRectangle rect) {
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diff changeset
271 if (c1rect.x+c1rect.width < rect.x+rect.width) {
9292035b8d93 fix forloop
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diff changeset
272 c1rect.x = c1rect.width; // next rectangle is phase 1
9292035b8d93 fix forloop
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parents: 531
diff changeset
273 } else {
9292035b8d93 fix forloop
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diff changeset
274 c1rect.x = rect.x;
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diff changeset
275 c1rect.y += c1rect.height;
9292035b8d93 fix forloop
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 531
diff changeset
276 }
9292035b8d93 fix forloop
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 531
diff changeset
277 width = 0;
531
13d3c4341d14 remove .idea modules fix for loop
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 529
diff changeset
278 c1rect.width = 0;
13d3c4341d14 remove .idea modules fix for loop
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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diff changeset
279 c1rect.height = 0;
528
2956c4a7bfbd define TileLoop class
anatofuz
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280 }
2956c4a7bfbd define TileLoop class
anatofuz
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281
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diff changeset
282 private void flushMuticast(TreeRFBProto rfb) {
528
2956c4a7bfbd define TileLoop class
anatofuz
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283 c1.flip();
2956c4a7bfbd define TileLoop class
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284 //System.out.println("multicastPut: " + c1rect + " length: " + (c1.remaining()-c1headerPos-header.limit()));
2956c4a7bfbd define TileLoop class
anatofuz
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diff changeset
285 try {
529
9de5137e1598 refactoring flushRectangle
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diff changeset
286 deflater.reset();
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287
9de5137e1598 refactoring flushRectangle
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diff changeset
288 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>();
9de5137e1598 refactoring flushRectangle
anatofuz
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diff changeset
289 bufs.add(c1);
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anatofuz
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290 if (rfb.isTreeManager() && rfb.connectionPresenter.isUseMulticast()) {
9de5137e1598 refactoring flushRectangle
anatofuz
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291 for (ByteBuffer buf : bufs)
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292 rfb.getViewer().getRfbBroadcastListener().multicastUpdateRectangle(buf);
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anatofuz
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293 } else {
9de5137e1598 refactoring flushRectangle
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diff changeset
294 rfb.multicastqueue.waitput(bufs);
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295 }
528
2956c4a7bfbd define TileLoop class
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296 } catch (InterruptedException e) {
2956c4a7bfbd define TileLoop class
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297 e.printStackTrace();
2956c4a7bfbd define TileLoop class
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298 }
2956c4a7bfbd define TileLoop class
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299 }
2956c4a7bfbd define TileLoop class
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parents: 527
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300 }
526
fcd833c2e148 Multicast Bloking in ZRLEDecoder
riono210
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301
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302 @Override
0
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303 public void decode(Reader reader, Renderer renderer,
539
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304 FramebufferUpdateRectangle rect) throws TransportException {
0
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parents:
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305 int zippedLength = (int) reader.readUInt32();
4689cc86d6cb create TreeViewer2 Repository
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parents:
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306 if (0 == zippedLength) return;
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parents:
diff changeset
307 int length = rect.width * rect.height * renderer.getBytesPerPixel();
3
e7ce2b2ffed8 add and modify files
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
308 byte[] bytes = unzip(reader, zippedLength, length, rect.getEncodingType());
526
fcd833c2e148 Multicast Bloking in ZRLEDecoder
riono210
parents: 515
diff changeset
309 decode1(renderer, null, rect, bytes, zippedLength, null);
539
0d11471e0b5b add comment ZRLEDecoder
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diff changeset
310 }
533
4be31e107121 fix bloking
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diff changeset
311
4be31e107121 fix bloking
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diff changeset
312
4be31e107121 fix bloking
riono210
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diff changeset
313 public void multicastDecode(Reader reader, Renderer renderer,
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
314 FramebufferUpdateRectangle rect, TreeRFBProto rfb) throws TransportException {
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
315 ByteBuffer header = ByteBuffer.allocate(16);
0d11471e0b5b add comment ZRLEDecoder
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parents: 538
diff changeset
316 reader.read(header.array());
533
4be31e107121 fix bloking
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diff changeset
317 int zippedLength = (int) reader.readUInt32();
4be31e107121 fix bloking
riono210
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diff changeset
318 if (0 == zippedLength) return;
4be31e107121 fix bloking
riono210
parents: 532
diff changeset
319 int length = rect.width * rect.height * renderer.getBytesPerPixel();
4be31e107121 fix bloking
riono210
parents: 532
diff changeset
320 byte[] bytes = unzip(reader, zippedLength, length, rect.getEncodingType());
4be31e107121 fix bloking
riono210
parents: 532
diff changeset
321 decode1(renderer, header, rect, bytes, zippedLength, rfb);
4be31e107121 fix bloking
riono210
parents: 532
diff changeset
322 }
4be31e107121 fix bloking
riono210
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diff changeset
323
526
fcd833c2e148 Multicast Bloking in ZRLEDecoder
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parents: 515
diff changeset
324 public void decode1(Renderer renderer, ByteBuffer header, FramebufferUpdateRectangle rect, byte[] bytes, int zippedLength, TreeRFBProto rfbProto) throws TransportException {
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
325 int offset = zippedLength;
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
326 int maxX = rect.x + rect.width;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
327 int maxY = rect.y + rect.height;
528
2956c4a7bfbd define TileLoop class
anatofuz
parents: 527
diff changeset
328
533
4be31e107121 fix bloking
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diff changeset
329 TileLoop tileloop = new TileLoop(zippedLength);
501
57ee5c26e8eb fix multicastput
oshiro
parents: 500
diff changeset
330 //System.out.println("decode1: "+rect);
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
331 if (null == palette) {
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
332 palette = new int [128];
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
333 }
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
334 if (null == decodedBitmap) {
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
335 decodedBitmap = new int[MAX_TILE_SIZE * MAX_TILE_SIZE];
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
336 }
526
fcd833c2e148 Multicast Bloking in ZRLEDecoder
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diff changeset
337
fcd833c2e148 Multicast Bloking in ZRLEDecoder
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diff changeset
338 if (rfbProto.multicastBlocking) {
535
17a2d0ea5c03 fix on ZRLEDecoder
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 534
diff changeset
339 tileloop.zrleeBlocking(rfbProto, header, rect,bytes);
526
fcd833c2e148 Multicast Bloking in ZRLEDecoder
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diff changeset
340 }
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
341 for (int tileY = rect.y; tileY < maxY; tileY += MAX_TILE_SIZE) {
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
342 int tileHeight = Math.min(maxY - tileY, MAX_TILE_SIZE);
0
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parents:
diff changeset
343
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
344 for (int tileX = rect.x; tileX < maxX; tileX += MAX_TILE_SIZE) {
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
345 int tileWidth = Math.min(maxX - tileX, MAX_TILE_SIZE);
0
4689cc86d6cb create TreeViewer2 Repository
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parents:
diff changeset
346 int subencoding = bytes[offset++] & 0x0ff;
63
84f1c39ba3bf temp commit
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 59
diff changeset
347 if(subencoding!=0)
84f1c39ba3bf temp commit
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 59
diff changeset
348 System.out.println("----------------"+subencoding);
0
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parents:
diff changeset
349 // 128 -plain RLE, 130-255 - Palette RLE
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
350 boolean isRle = (subencoding & 128) != 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
351 // 2 to 16 for raw packed palette data, 130 to 255 for Palette RLE (subencoding - 128)
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
352 int paletteSize = subencoding & 127;
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
353 offset += readPalette(bytes, offset, renderer, paletteSize);
0
4689cc86d6cb create TreeViewer2 Repository
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parents:
diff changeset
354 if (1 == subencoding) { // A solid tile consisting of a single colour
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
355 renderer.fillRect(palette[0], tileX, tileY, tileWidth, tileHeight);
500
6609174beafe fix subencoding
oshiro
parents: 499
diff changeset
356 } else if (isRle) {
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
357 if (0 == paletteSize) { // subencoding == 128 (or paletteSize == 0) - Plain RLE
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
358 offset += decodePlainRle(bytes, offset, renderer, tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
359 } else {
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
360 offset += decodePaletteRle(bytes, offset, renderer, tileX, tileY, tileWidth, tileHeight);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
361 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
362 } else {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
363 if (0 == paletteSize) { // subencoding == 0 (or paletteSize == 0) - raw CPIXEL data
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
364 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
365 // System.out.println("offset:"+offset);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
366 } else {
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
367 offset += decodePacked(bytes, offset, renderer, paletteSize, tileX, tileY, tileWidth, tileHeight);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
368 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
369 }
531
13d3c4341d14 remove .idea modules fix for loop
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 529
diff changeset
370 if (rfbProto != null && rfbProto.multicastBlocking) 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
371 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
372 }
531
13d3c4341d14 remove .idea modules fix for loop
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 529
diff changeset
373 if (rfbProto != null && rfbProto.multicastBlocking) tileloop.multicastPut(rfbProto, true, rect, bytes, offset, 0, 0);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
374 }
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 private int decodePlainRle(byte[] bytes, int offset, Renderer renderer,
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
377 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
378 int bytesPerCPixel = renderer.getBytesPerCPixel();
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
379 int decodedOffset = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
380 int decodedEnd = tileWidth * tileHeight;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
381 int index = offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
382 while (decodedOffset < decodedEnd) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
383 int color = renderer.getCompactPixelColor(bytes, index);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
384 index += bytesPerCPixel;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
385 int rlength = 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
386 do {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
387 rlength += bytes[index] & 0x0ff;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
388 } while ((bytes[index++] & 0x0ff) == 255);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
389 assert rlength <= decodedEnd - decodedOffset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
390 renderer.fillColorBitmapWithColor(decodedBitmap, decodedOffset, rlength, color);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
391 decodedOffset += rlength;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
392 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
393 renderer.drawColoredBitmap(decodedBitmap, tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
394 return index - offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
395 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
396
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
397 private int decodePaletteRle(byte[] bytes, int offset, Renderer renderer,
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
398 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
399 int decodedOffset = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
400 int decodedEnd = tileWidth * tileHeight;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
401 int index = offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
402 while (decodedOffset < decodedEnd) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
403 int colorIndex = bytes[index++];
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
404 int color = palette[colorIndex & 127];
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
405 int rlength = 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
406 if ((colorIndex & 128) != 0) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
407 do {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
408 rlength += bytes[index] & 0x0ff;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
409 } while (bytes[index++] == (byte) 255);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
410 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
411 assert rlength <= decodedEnd - decodedOffset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
412 renderer.fillColorBitmapWithColor(decodedBitmap, decodedOffset, rlength, color);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
413 decodedOffset += rlength;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
414 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
415 renderer.drawColoredBitmap(decodedBitmap, tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
416 return index - offset;
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
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
419 private int decodePacked(byte[] bytes, int offset, Renderer renderer,
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
420 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
421 int bitsPerPalletedPixel = paletteSize > 16 ? 8 : paletteSize > 4 ? 4
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
422 : paletteSize > 2 ? 2 : 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
423 int packedOffset = offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
424 int decodedOffset = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
425 for (int i = 0; i < tileHeight; ++i) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
426 int decodedRowEnd = decodedOffset + tileWidth;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
427 int byteProcessed = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
428 int bitsRemain = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
429
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
430 while (decodedOffset < decodedRowEnd) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
431 if (bitsRemain == 0) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
432 byteProcessed = bytes[packedOffset++];
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
433 bitsRemain = 8;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
434 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
435 bitsRemain -= bitsPerPalletedPixel;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
436 int index = byteProcessed >> bitsRemain & (1 << bitsPerPalletedPixel) - 1 & 127;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
437 int color = palette[index];
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
438 renderer.fillColorBitmapWithColor(decodedBitmap, decodedOffset, 1, color);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
439 ++decodedOffset;
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 }
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
442 renderer.drawColoredBitmap(decodedBitmap, tileX, tileY, tileWidth, tileHeight);
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
443 return packedOffset - offset;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
444 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
445
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
446 private int decodeRaw(byte[] bytes, int offset, Renderer renderer,
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
447 int tileX, int tileY, int tileWidth, int tileHeight) throws TransportException {
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
448 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
449 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
450
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
451 private int readPalette(byte[] bytes, int offset, Renderer renderer, int paletteSize) {
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
452 final int bytesPerCPixel = renderer.getBytesPerCPixel();
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
453 for (int i=0; i<paletteSize; ++i) {
539
0d11471e0b5b add comment ZRLEDecoder
e165729 <e165729@ie.u-ryukyu.ac.jp>
parents: 538
diff changeset
454 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
455 }
57
17b702648079 version2.7.2 original version.
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
456 return paletteSize * bytesPerCPixel;
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
457 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
458
526
fcd833c2e148 Multicast Bloking in ZRLEDecoder
riono210
parents: 515
diff changeset
459
fcd833c2e148 Multicast Bloking in ZRLEDecoder
riono210
parents: 515
diff changeset
460
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
461 }