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
|
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright (C) 2011 D. R. Commander. 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.
*/
#include <stdio.h>
#include <rdr/InStream.h>
#include <rdr/OutStream.h>
#include <rfb/Exception.h>
#include <rfb/encodings.h>
#include <rfb/Encoder.h>
#include <rfb/ConnParams.h>
#include <rfb/util.h>
using namespace rfb;
ConnParams::ConnParams()
: majorVersion(0), minorVersion(0),
width(0), height(0), useCopyRect(false),
supportsLocalCursor(false), supportsLocalXCursor(false),
supportsDesktopResize(false), supportsExtendedDesktopSize(false),
supportsDesktopRename(false), supportsLastRect(false),
supportsSetDesktopSize(false), supportsFence(false),
supportsContinuousUpdates(false),
customCompressLevel(false), compressLevel(2),
noJpeg(false), qualityLevel(-1), fineQualityLevel(-1),
subsampling(SUBSAMP_UNDEFINED),
name_(0), nEncodings_(0), encodings_(0),
currentEncoding_(encodingRaw), verStrPos(0)
{
setName("");
}
ConnParams::~ConnParams()
{
delete [] name_;
delete [] encodings_;
}
bool ConnParams::readVersion(rdr::InStream* is, bool* done)
{
if (verStrPos >= 12) return false;
while (is->checkNoWait(1) && verStrPos < 12) {
verStr[verStrPos++] = is->readU8();
}
if (verStrPos < 12) {
*done = false;
return true;
}
*done = true;
verStr[12] = 0;
return (sscanf(verStr, "RFB %03d.%03d\n", &majorVersion,&minorVersion) == 2);
}
void ConnParams::writeVersion(rdr::OutStream* os)
{
char str[13];
sprintf(str, "RFB %03d.%03d\n", majorVersion, minorVersion);
os->writeBytes(str, 12);
os->flush();
}
void ConnParams::setPF(const PixelFormat& pf)
{
pf_ = pf;
if (pf.bpp != 8 && pf.bpp != 16 && pf.bpp != 32)
throw Exception("setPF: not 8, 16 or 32 bpp?");
}
void ConnParams::setName(const char* name)
{
delete [] name_;
name_ = strDup(name);
}
void ConnParams::setEncodings(int nEncodings, const rdr::S32* encodings)
{
if (nEncodings > nEncodings_) {
delete [] encodings_;
encodings_ = new rdr::S32[nEncodings];
}
nEncodings_ = nEncodings;
useCopyRect = false;
supportsLocalCursor = false;
supportsDesktopResize = false;
supportsExtendedDesktopSize = false;
supportsLocalXCursor = false;
supportsLastRect = false;
customCompressLevel = false;
compressLevel = -1;
noJpeg = true;
qualityLevel = -1;
fineQualityLevel = -1;
subsampling = SUBSAMP_UNDEFINED;
currentEncoding_ = encodingRaw;
for (int i = nEncodings-1; i >= 0; i--) {
encodings_[i] = encodings[i];
if (encodings[i] == encodingCopyRect)
useCopyRect = true;
else if (encodings[i] == pseudoEncodingCursor)
supportsLocalCursor = true;
else if (encodings[i] == pseudoEncodingXCursor)
supportsLocalXCursor = true;
else if (encodings[i] == pseudoEncodingDesktopSize)
supportsDesktopResize = true;
else if (encodings[i] == pseudoEncodingExtendedDesktopSize)
supportsExtendedDesktopSize = true;
else if (encodings[i] == pseudoEncodingDesktopName)
supportsDesktopRename = true;
else if (encodings[i] == pseudoEncodingLastRect)
supportsLastRect = true;
else if (encodings[i] == pseudoEncodingFence)
supportsFence = true;
else if (encodings[i] == pseudoEncodingContinuousUpdates)
supportsContinuousUpdates = true;
else if (encodings[i] >= pseudoEncodingCompressLevel0 &&
encodings[i] <= pseudoEncodingCompressLevel9) {
customCompressLevel = true;
compressLevel = encodings[i] - pseudoEncodingCompressLevel0;
} else if (encodings[i] >= pseudoEncodingQualityLevel0 &&
encodings[i] <= pseudoEncodingQualityLevel9) {
noJpeg = false;
qualityLevel = encodings[i] - pseudoEncodingQualityLevel0;
} else if (Encoder::supported(encodings[i]))
currentEncoding_ = encodings[i];
}
// If the TurboVNC fine quality/subsampling encodings exist, let them
// override the coarse TightVNC quality level
for (int i = nEncodings-1; i >= 0; i--) {
if (encodings[i] >= pseudoEncodingFineQualityLevel0 + 1 &&
encodings[i] <= pseudoEncodingFineQualityLevel100) {
noJpeg = false;
fineQualityLevel = encodings[i] - pseudoEncodingFineQualityLevel0;
} else if (encodings[i] >= pseudoEncodingSubsamp1X &&
encodings[i] <= pseudoEncodingSubsampGray) {
noJpeg = false;
subsampling = (JPEG_SUBSAMP)(encodings[i] - pseudoEncodingSubsamp1X);
}
}
}
|
