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
|
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright (C) 2005 Constantin Kaplinsky. 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 <rfb/TransImageGetter.h>
#include <rfb/encodings.h>
#include <rfb/SMsgWriter.h>
#include <rfb/HextileEncoder.h>
#include <rfb/Configuration.h>
using namespace rfb;
BoolParameter improvedHextile("ImprovedHextile",
"Use improved compression algorithm for Hextile "
"encoding which achieves better compression "
"ratios by the cost of using more CPU time",
true);
#define EXTRA_ARGS ImageGetter* ig
#define GET_IMAGE_INTO_BUF(r,buf) ig->getImage(buf, r);
#define BPP 8
#include <rfb/hextileEncode.h>
#include <rfb/hextileEncodeBetter.h>
#undef BPP
#define BPP 16
#include <rfb/hextileEncode.h>
#include <rfb/hextileEncodeBetter.h>
#undef BPP
#define BPP 32
#include <rfb/hextileEncode.h>
#include <rfb/hextileEncodeBetter.h>
#undef BPP
HextileEncoder::HextileEncoder(SMsgWriter* writer_) : writer(writer_)
{
}
HextileEncoder::~HextileEncoder()
{
}
bool HextileEncoder::writeRect(const Rect& r, TransImageGetter* ig,
Rect* actual)
{
writer->startRect(r, encodingHextile);
rdr::OutStream* os = writer->getOutStream();
switch (writer->bpp()) {
case 8:
if (improvedHextile) {
hextileEncodeBetter8(r, os, ig);
} else {
hextileEncode8(r, os, ig);
}
break;
case 16:
if (improvedHextile) {
hextileEncodeBetter16(r, os, ig);
} else {
hextileEncode16(r, os, ig);
}
break;
case 32:
if (improvedHextile) {
hextileEncodeBetter32(r, os, ig);
} else {
hextileEncode32(r, os, ig);
}
break;
}
writer->endRect();
return true;
}
|
