Mercurial > hg > Applications > TreeVNC

annotate src/main/java/com/glavsoft/rfb/encoding/decoder/HextileDecoder.java @ 0:4689cc86d6cb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
create TreeViewer2 Repository
author Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
date Tue, 03 Jul 2012 13:20:49 +0900
parents
children 17b702648079
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 // Copyright (C) 2010, 2011 GlavSoft LLC.
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
2 // All rights reserved.
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
3 //
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
4 //-------------------------------------------------------------------------
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
5 // This file is part of the TightVNC software. Please visit our Web site:
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
6 //
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
7 // http://www.tightvnc.com/
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
8 //
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
9 // This program is free software; you can redistribute it and/or modify
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
10 // it under the terms of the GNU General Public License as published by
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 // the Free Software Foundation; either version 2 of the License, or
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
12 // (at your option) any later version.
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
13 //
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 // This program is distributed in the hope that it will be useful,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 // GNU General Public License for more details.
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
18 //
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
19 // You should have received a copy of the GNU General Public License along
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
20 // with this program; if not, write to the Free Software Foundation, Inc.,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
22 //-------------------------------------------------------------------------
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
23 //
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
24
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
25 package com.glavsoft.rfb.encoding.decoder;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
26
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
27 import com.glavsoft.drawing.Renderer;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
28 import com.glavsoft.exceptions.TransportException;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
29 import com.glavsoft.transport.Reader;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
30
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
31
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
32 public class HextileDecoder extends Decoder {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
33 private static final int DEFAULT_TILE_SIZE = 16;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
34 private static final int RAW_MASK = 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
35 private static final int BACKGROUND_SPECIFIED_MASK = 2;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
36 private static final int FOREGROUND_SPECIFIED_MASK = 4;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
37 private static final int ANY_SUBRECTS_MASK = 8;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
38 private static final int SUBRECTS_COLOURED_MASK = 16;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
39 private static final int FG_COLOR_INDEX = 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
40 private static final int BG_COLOR_INDEX = 1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
41
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
42 @Override
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
43 public void decode(Reader reader, Renderer renderer,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
44 FramebufferUpdateRectangle rect) throws TransportException {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
45 if (rect.width == 0 || rect.height == 0) return;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
46 int[] colors = new int[] {-1, -1};
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
47 int maxX = rect.x + rect.width;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
48 int maxY = rect.y + rect.height;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
49 for (int tileY = rect.y; tileY < maxY;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
50 tileY += DEFAULT_TILE_SIZE) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
51 int tileHeight = Math.min(maxY - tileY, DEFAULT_TILE_SIZE);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
52 for (int tileX = rect.x; tileX < maxX;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
53 tileX += DEFAULT_TILE_SIZE) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
54 int tileWidth = Math.min(maxX - tileX, DEFAULT_TILE_SIZE);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
55 decodeHextileSubrectangle(reader, renderer, colors, tileX,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
56 tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
57 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
58 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
59
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
60 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
61
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
62 private void decodeHextileSubrectangle(Reader reader,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
63 Renderer renderer, int[] colors,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
64 int tileX, int tileY, int tileWidth, int tileHeight)
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
65 throws TransportException {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
66
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
67 int subencoding = reader.readUInt8();
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
68
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
69 if ((subencoding & RAW_MASK) != 0) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
70 RawDecoder.getInstance().decode(reader, renderer,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
71 tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
72 return;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
73 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
74
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
75 if ((subencoding & BACKGROUND_SPECIFIED_MASK) != 0) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
76 colors[BG_COLOR_INDEX] = renderer.readPixelColor(reader);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
77 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
78 assert colors[BG_COLOR_INDEX] != -1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
79 renderer.fillRect(colors[BG_COLOR_INDEX],
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
80 tileX, tileY, tileWidth, tileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
81
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
82 if ((subencoding & FOREGROUND_SPECIFIED_MASK) != 0) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
83 colors[FG_COLOR_INDEX] = renderer.readPixelColor(reader);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
84 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
85
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
86 if ((subencoding & ANY_SUBRECTS_MASK) == 0)
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
87 return;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
88
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
89 int numberOfSubrectangles = reader.readUInt8();
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
90 boolean colorSpecified =
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
91 (subencoding & SUBRECTS_COLOURED_MASK) != 0;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
92 for (int i = 0; i < numberOfSubrectangles; ++i) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
93 if (colorSpecified) {
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
94 colors[FG_COLOR_INDEX] = renderer.readPixelColor(reader);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
95 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
96 byte dimensions = reader.readByte(); // bits 7-4 for x, bits 3-0 for y
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
97 int subtileX = dimensions >> 4 & 0x0f;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
98 int subtileY = dimensions & 0x0f;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
99 dimensions = reader.readByte(); // bits 7-4 for w, bits 3-0 for h
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
100 int subtileWidth = 1 + (dimensions >> 4 & 0x0f);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
101 int subtileHeight = 1 + (dimensions & 0x0f);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
102 assert colors[FG_COLOR_INDEX] != -1;
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
103 renderer.fillRect(colors[FG_COLOR_INDEX],
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
104 tileX + subtileX, tileY + subtileY,
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
105 subtileWidth, subtileHeight);
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
106 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
107 }
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
108
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
109
4689cc86d6cb create TreeViewer2 Repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
110 }