1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
//
// PixelFormat
//
package com.tigervnc.rfb;
import com.tigervnc.rdr.*;
public class PixelFormat {
public PixelFormat(int b, int d, boolean e, boolean t) {
bpp = b;
depth = d;
bigEndian = e;
trueColour = t;
}
public PixelFormat(int b, int d, boolean e, boolean t,
int rm, int gm, int bm, int rs, int gs, int bs) {
this(b, d, e, t);
redMax = rm;
greenMax = gm;
blueMax = bm;
redShift = rs;
greenShift = gs;
blueShift = bs;
}
public PixelFormat() { this(8,8,false,true,7,7,3,0,3,6); }
public boolean equal(PixelFormat x) {
return (bpp == x.bpp &&
depth == x.depth &&
(bigEndian == x.bigEndian || bpp == 8) &&
trueColour == x.trueColour &&
(!trueColour || (redMax == x.redMax &&
greenMax == x.greenMax &&
blueMax == x.blueMax &&
redShift == x.redShift &&
greenShift == x.greenShift &&
blueShift == x.blueShift)));
}
public void read(InStream is) {
bpp = is.readU8();
depth = is.readU8();
bigEndian = is.readU8()!=0;
trueColour = is.readU8()!=0;
redMax = is.readU16();
greenMax = is.readU16();
blueMax = is.readU16();
redShift = is.readU8();
greenShift = is.readU8();
blueShift = is.readU8();
is.skip(3);
}
public void write(OutStream os) {
os.writeU8(bpp);
os.writeU8(depth);
os.writeU8(bigEndian?1:0);
os.writeU8(trueColour?1:0);
os.writeU16(redMax);
os.writeU16(greenMax);
os.writeU16(blueMax);
os.writeU8(redShift);
os.writeU8(greenShift);
os.writeU8(blueShift);
os.pad(3);
}
public final boolean is888() {
if(!trueColour)
return false;
if(bpp != 32)
return false;
if(depth != 24)
return false;
if(redMax != 255)
return false;
if(greenMax != 255)
return false;
if(blueMax != 255)
return false;
return true;
}
public void bufferFromRGB(int dst, byte[] src) {
if (bigEndian) {
dst =
(src[0] & 0xFF) << 16 | (src[1] & 0xFF) << 8 | (src[2] & 0xFF) | 0xFF << 24;
} else {
dst =
(src[2] & 0xFF) << 16 | (src[1] & 0xFF) << 8 | (src[0] & 0xFF) | 0xFF << 24;
}
}
public String print() {
StringBuffer s = new StringBuffer();
s.append("depth "+depth+" ("+bpp+"bpp)");
if (bpp != 8) {
if (bigEndian)
s.append(" big-endian");
else
s.append(" little-endian");
}
if (!trueColour) {
s.append(" colour-map");
return s.toString();
}
if (blueShift == 0 && greenShift > blueShift && redShift > greenShift &&
blueMax == (1 << greenShift) - 1 &&
greenMax == (1 << (redShift-greenShift)) - 1 &&
redMax == (1 << (depth-redShift)) - 1)
{
s.append(" rgb"+(depth-redShift)+(redShift-greenShift)+greenShift);
return s.toString();
}
if (redShift == 0 && greenShift > redShift && blueShift > greenShift &&
redMax == (1 << greenShift) - 1 &&
greenMax == (1 << (blueShift-greenShift)) - 1 &&
blueMax == (1 << (depth-blueShift)) - 1)
{
s.append(" bgr"+(depth-blueShift)+(blueShift-greenShift)+greenShift);
return s.toString();
}
s.append(" rgb max "+redMax+","+greenMax+","+blueMax+" shift "+redShift+
","+greenShift+","+blueShift);
return s.toString();
}
public int bpp;
public int depth;
public boolean bigEndian;
public boolean trueColour;
public int redMax;
public int greenMax;
public int blueMax;
public int redShift;
public int greenShift;
public int blueShift;
}
|
