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annotate src/main/java/com/glavsoft/rfb/encoding/decoder/ZRLEESender.java @ 533:4be31e107121

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fix bloking
author riono210
date Sun, 05 May 2019 18:32:55 +0900
parents fcd833c2e148
children
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1 package com.glavsoft.rfb.encoding.decoder;
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3 import java.io.UnsupportedEncodingException;
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4 import java.nio.ByteBuffer;
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6 import com.glavsoft.rfb.protocol.NullRenderer;
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7 import jp.ac.u_ryukyu.treevnc.TreeRFBProto;
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9 import com.glavsoft.drawing.Renderer;
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10 import com.glavsoft.exceptions.TransportException;
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11 import com.glavsoft.rfb.encoding.EncodingType;
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12 import com.glavsoft.transport.Reader;
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14 public class ZRLEESender extends Decoder {
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16 private TreeRFBProto rfb;
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18 public ZRLEESender(TreeRFBProto rfb) {
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19 this.rfb = rfb;
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20 }
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22 public ZRLEESender() {
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23 }
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25 @Override
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26 public void decode(Reader reader, Renderer renderer,
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27 FramebufferUpdateRectangle rect) throws TransportException, UnsupportedEncodingException {
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28 // TreeVNC handling
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29 int dataLen = getZrleLength(rect, reader);
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30 reader.reset();
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31 //System.out.println("ZRLEESender: " + rect + " length: " + dataLen);
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32 if (rfb.hasViewer()) {
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33 ZRLEDecoder decoder = new ZRLEDecoder();
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34 if (rect.getEncodingType() == EncodingType.ZRLE) {
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35 // ReadSendData convert ZRLE to ZRLEE
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36 // unzipped data in the bytes
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37 byte[] bytes = new byte[rect.width * rect.height * renderer.getBytesPerPixel()];
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38 if (rfb.multicastBlocking) {
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39 decoder.multicastDecode(reader, renderer, rect, rfb);
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40 } else {
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41 ByteBuffer header = rfb.readSendData(dataLen, reader, bytes, rect);
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42 decoder.decode1(renderer, header, rect, bytes, 0, rfb);
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43 }
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44 return;
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45 } else {
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46 // no reencoding is required
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47 // readSend does not peform unzip, do the fullrecoding
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48 rfb.readSendData(dataLen, reader, null, rect);
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49 reader.reset();
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50 if (rect.getEncodingType() == EncodingType.CHECK_DELAY) {
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51 reader.skip(24);
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52 } else {
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53 reader.skip(16);
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54 }
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55 decoder.decode(reader, renderer, rect);
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56 return;
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57 }
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58 }
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59 if (rfb.multicastBlocking) {
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60 // do something
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61 ZRLEDecoder decoder = new ZRLEDecoder();
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62 decoder.multicastDecode(reader, renderer, rect, rfb);
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63 } else {
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64 byte[] bytes = new byte[dataLen];
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65 rfb.readSendData(dataLen, reader, bytes, rect);
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66 }
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67 }
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69 private int getZrleLength(FramebufferUpdateRectangle rect, Reader reader)
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70 throws TransportException {
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71 int zrleLength = 0;
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72 if (rect.getEncodingType() == EncodingType.ZRLE
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73 || rect.getEncodingType() == EncodingType.ZRLEE
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74 || rect.getEncodingType() == EncodingType.ZLIB || rect.getEncodingType() == EncodingType.CHECK_DELAY) {
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75 zrleLength = reader.readInt32();
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76 }
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77 if (rect.getEncodingType() == EncodingType.CHECK_DELAY) {
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78 // plus time byte
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79 return zrleLength + 20 + 8;
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80 }
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81 return zrleLength + 20;
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82 }
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84 }