Mercurial > hg > Applications > tvnjviewer

comparison src/main/java/com/glavsoft/rfb/encoding/PixelFormat.java @ 0:daa24f8a557b

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TightVNC original
author YU
date Thu, 11 Sep 2014 07:30:03 +0900
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-1:000000000000 0:daa24f8a557b
1 // Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC.
2 // All rights reserved.
3 //
4 //-------------------------------------------------------------------------
5 // This file is part of the TightVNC software. Please visit our Web site:
6 //
7 // http://www.tightvnc.com/
8 //
9 // This program is free software; you can redistribute it and/or modify
10 // it under the terms of the GNU General Public License as published by
11 // the Free Software Foundation; either version 2 of the License, or
12 // (at your option) any later version.
13 //
14 // This program is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18 //
19 // You should have received a copy of the GNU General Public License along
20 // with this program; if not, write to the Free Software Foundation, Inc.,
21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 //-------------------------------------------------------------------------
23 //
24
25 package com.glavsoft.rfb.encoding;
26
27 import com.glavsoft.exceptions.TransportException;
28 import com.glavsoft.transport.Reader;
29 import com.glavsoft.transport.Writer;
30
31 /**
32 * Pixel Format:
33 * 1 - U8 - bits-per-pixel
34 * 1 - U8 - depth
35 * 1 - U8 - big-endian-flag
36 * 1 - U8 - true-color-flag
37 * 2 - U16 - red-max
38 * 2 - U16 - green-max
39 * 2 - U16 - blue-max
40 * 1 - U8 - red-shift
41 * 1 - U8 - green-shift
42 * 1 - U8 - blue-shift
43 * 3 - - padding
44 */
45 public class PixelFormat {
46 public byte bitsPerPixel;
47 public byte depth;
48 public byte bigEndianFlag;
49 public byte trueColourFlag;
50 public short redMax;
51 public short greenMax;
52 public short blueMax;
53 public byte redShift;
54 public byte greenShift;
55 public byte blueShift;
56
57 public void fill(Reader reader) throws TransportException {
58 bitsPerPixel = reader.readByte();
59 depth = reader.readByte();
60 bigEndianFlag = reader.readByte();
61 trueColourFlag = reader.readByte();
62 redMax = reader.readInt16();
63 greenMax = reader.readInt16();
64 blueMax = reader.readInt16();
65 redShift = reader.readByte();
66 greenShift = reader.readByte();
67 blueShift = reader.readByte();
68 reader.readBytes(3); // skip padding bytes
69 }
70
71 public void send(Writer writer) throws TransportException {
72 writer.write(bitsPerPixel);
73 writer.write(depth);
74 writer.write(bigEndianFlag);
75 writer.write(trueColourFlag);
76 writer.write(redMax);
77 writer.write(greenMax);
78 writer.write(blueMax);
79 writer.write(redShift);
80 writer.write(greenShift);
81 writer.write(blueShift);
82 writer.writeInt16(0); // padding bytes
83 writer.writeByte(0); // padding bytes
84 }
85
86 public static PixelFormat create24bitColorDepthPixelFormat(int bigEndianFlag) {
87 final PixelFormat pixelFormat = new PixelFormat();
88 pixelFormat.bigEndianFlag = (byte) bigEndianFlag;
89 pixelFormat.bitsPerPixel = 32;
90 pixelFormat.blueMax = 255;
91 pixelFormat.blueShift = 0;
92 pixelFormat.greenMax = 255;
93 pixelFormat.greenShift = 8;
94 pixelFormat.redMax = 255;
95 pixelFormat.redShift = 16;
96 pixelFormat.depth = 24;
97 pixelFormat.trueColourFlag = 1;
98 return pixelFormat;
99 }
100
101 /**
102 * specifies 65536 colors, 5bit per Red, 6bit per Green, 5bit per Blue
103 */
104 public static PixelFormat create16bitColorDepthPixelFormat(int bigEndianFlag) {
105 final PixelFormat pixelFormat = new PixelFormat();
106 pixelFormat.bigEndianFlag = (byte) bigEndianFlag;
107 pixelFormat.bitsPerPixel = 16;
108 pixelFormat.blueMax = 31;
109 pixelFormat.blueShift = 0;
110 pixelFormat.greenMax = 63;
111 pixelFormat.greenShift = 5;
112 pixelFormat.redMax = 31;
113 pixelFormat.redShift = 11;
114 pixelFormat.depth = 16;
115 pixelFormat.trueColourFlag = 1;
116 return pixelFormat;
117 }
118
119 /**
120 * specifies 256 colors, 2bit per Blue, 3bit per Green & Red
121 */
122 public static PixelFormat create8bitColorDepthBGRPixelFormat(int bigEndianFlag) {
123 final PixelFormat pixelFormat = new PixelFormat();
124 pixelFormat.bigEndianFlag = (byte) bigEndianFlag;
125 pixelFormat.bitsPerPixel = 8;
126 pixelFormat.redMax = 7;
127 pixelFormat.redShift = 0;
128 pixelFormat.greenMax = 7;
129 pixelFormat.greenShift = 3;
130 pixelFormat.blueMax = 3;
131 pixelFormat.blueShift = 6;
132 pixelFormat.depth = 8;
133 pixelFormat.trueColourFlag = 1;
134 return pixelFormat;
135 }
136
137 /**
138 * specifies 64 colors, 2bit per Red, Green & Blue
139 */
140 public static PixelFormat create6bitColorDepthPixelFormat(int bigEndianFlag) {
141 final PixelFormat pixelFormat = new PixelFormat();
142 pixelFormat.bigEndianFlag = (byte) bigEndianFlag;
143 pixelFormat.bitsPerPixel = 8;
144 pixelFormat.blueMax = 3;
145 pixelFormat.blueShift = 0;
146 pixelFormat.greenMax = 3;
147 pixelFormat.greenShift = 2;
148 pixelFormat.redMax = 3;
149 pixelFormat.redShift = 4;
150 pixelFormat.depth = 6;
151 pixelFormat.trueColourFlag = 1;
152 return pixelFormat;
153 }
154
155 /**
156 * specifies 8 colors, 1bit per Red, Green & Blue
157 */
158 public static PixelFormat create3bppPixelFormat(int bigEndianFlag) {
159 final PixelFormat pixelFormat = new PixelFormat();
160 pixelFormat.bigEndianFlag = (byte) bigEndianFlag;
161 pixelFormat.bitsPerPixel = 8;
162 pixelFormat.blueMax = 1;
163 pixelFormat.blueShift = 0;
164 pixelFormat.greenMax = 1;
165 pixelFormat.greenShift = 1;
166 pixelFormat.redMax = 1;
167 pixelFormat.redShift = 2;
168 pixelFormat.depth = 3;
169 pixelFormat.trueColourFlag = 1;
170 return pixelFormat;
171 }
172
173 @Override
174 public String toString() {
175 return "PixelFormat: [bits-per-pixel: " + String.valueOf(0xff & bitsPerPixel) +
176 ", depth: " + String.valueOf(0xff & depth) +
177 ", big-endian-flag: " + String.valueOf(0xff & bigEndianFlag) +
178 ", true-color-flag: " + String.valueOf(0xff & trueColourFlag) +
179 ", red-max: " + String.valueOf(0xffff & redMax) +
180 ", green-max: " + String.valueOf(0xffff & greenMax) +
181 ", blue-max: " + String.valueOf(0xffff & blueMax) +
182 ", red-shift: " + String.valueOf(0xff & redShift) +
183 ", green-shift: " + String.valueOf(0xff & greenShift) +
184 ", blue-shift: " + String.valueOf(0xff & blueShift) +
185 "]";
186 }
187 }