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annotate src/viewer_swing/java/com/glavsoft/viewer/swing/RendererImpl.java @ 59:433c79184c05

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merge version2.7.2
author Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
date Tue, 17 Dec 2013 20:16:48 +0900
parents 17b702648079 f70008073a03
children
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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.viewer.swing;
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26
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27 import com.glavsoft.drawing.Renderer;
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28 import com.glavsoft.rfb.encoding.PixelFormat;
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29 import com.glavsoft.rfb.encoding.decoder.FramebufferUpdateRectangle;
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30 import com.glavsoft.transport.Reader;
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31
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32 import java.awt.*;
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33 import java.awt.image.*;
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34 import java.util.concurrent.BrokenBarrierException;
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35 import java.util.concurrent.CyclicBarrier;
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36 import java.util.concurrent.TimeUnit;
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37 import java.util.concurrent.TimeoutException;
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38
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39 public class RendererImpl extends Renderer implements ImageObserver {
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40 CyclicBarrier barrier = new CyclicBarrier(2);
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41 private final Image offscreanImage;
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42
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43 public RendererImpl(Reader reader, int width, int height, PixelFormat pixelFormat) {
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44 if (0 == width) width = 1;
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45 if (0 == height) height = 1;
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46 init(reader, width, height, pixelFormat);
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47 ColorModel colorModel = new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
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48 SampleModel sampleModel = colorModel.createCompatibleSampleModel(width,
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49 height);
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50
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51 DataBuffer dataBuffer = new DataBufferInt(pixels, width * height);
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52 WritableRaster raster = Raster.createWritableRaster(sampleModel,
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53 dataBuffer, null);
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54 offscreanImage = new BufferedImage(colorModel, raster, false, null);
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55 cursor = new SoftCursorImpl(0, 0, 0, 0);
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56 }
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57
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58 /**
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59 * Draw jpeg image data
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60 *
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61 * @param bytes jpeg image data array
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62 * @param offset start offset at data array
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63 * @param jpegBufferLength jpeg image data array length
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64 * @param rect image location and dimensions
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65 */
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66 @Override
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67 public void drawJpegImage(byte[] bytes, int offset, int jpegBufferLength,
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68 FramebufferUpdateRectangle rect) {
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69 Image jpegImage = Toolkit.getDefaultToolkit().createImage(bytes,
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70 offset, jpegBufferLength);
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71 Toolkit.getDefaultToolkit().prepareImage(jpegImage, -1, -1, this);
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72 try {
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73 barrier.await(3, TimeUnit.SECONDS);
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74 } catch (InterruptedException e) {
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75 // nop
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76 } catch (BrokenBarrierException e) {
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77 // nop
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78 } catch (TimeoutException e) {
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79 // nop
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80 }
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81 Graphics graphics = offscreanImage.getGraphics();
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82 graphics.drawImage(jpegImage, rect.x, rect.y, rect.width, rect.height, this);
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83 }
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84
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85 @Override
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86 public boolean imageUpdate(Image img, int infoflags, int x, int y,
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87 int width, int height) {
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88 boolean isReady = (infoflags & (ALLBITS | ABORT)) != 0;
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89 if (isReady) {
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90 try {
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91 barrier.await();
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92 } catch (InterruptedException e) {
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93 // nop
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94 } catch (BrokenBarrierException e) {
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95 // nop
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96 }
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97 }
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98 return ! isReady;
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99 }
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100
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101 /* Swing specific interface */
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102 public Image getOffscreenImage() {
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103 return offscreanImage;
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104 }
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105
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106 public SoftCursorImpl getCursor() {
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107 return (SoftCursorImpl) cursor;
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108 }
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109
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110 }