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
|
/* This file is part of Strigi Desktop Search
*
* Copyright (C) 2007 Vincent Ricard <magic@magicninja.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "tgathroughanalyzer.h"
#include <strigi/strigiconfig.h>
#include <strigi/analysisresult.h>
#include <strigi/fieldtypes.h>
#include <strigi/textutils.h>
using namespace std;
using namespace Strigi;
// AnalyzerFactory
void
TgaThroughAnalyzerFactory::registerFields(FieldRegister& reg) {
compressionField = reg.registerField(
"http://freedesktop.org/standards/xesam/1.0/core#compressionAlgorithm");
colorDepthField = reg.registerField(
"http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#colorDepth");
colorModeField = reg.registerField(
"http://freedesktop.org/standards/xesam/1.0/core#colorSpace");
widthField = reg.registerField(
"http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#width");
heightField = reg.registerField(
"http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#height");
typeField = reg.typeField;
addField(compressionField);
addField(colorDepthField);
addField(colorModeField);
addField(widthField);
addField(heightField);
addField(typeField);
}
// Analyzer
void
TgaThroughAnalyzer::setIndexable(AnalysisResult* i) {
analysisResult = i;
}
InputStream*
TgaThroughAnalyzer::connectInputStream(InputStream* in) {
if (in == 0) return 0;
const int32_t nreq = 18;
const char* buf;
int32_t nread = in->read(buf, nreq, -1);
in->reset(0);
if (nread < nreq) {
return in;
}
uint8_t imagetype = *(buf+2);
/* //FIXME: either get rid of this or replace with NIE equivalent
switch (imagetype) {
case 1 :
case 9 :
case 32 :
analysisResult->addValue(factory->colorModeField, "Color-Mapped");
break;
case 2 :
case 10 :
case 33 :
analysisResult->addValue(factory->colorModeField, "RGB");
break;
case 3 :
case 11 :
analysisResult->addValue(factory->colorModeField, "Black and White");
break;
default :
analysisResult->addValue(factory->colorModeField, "Unknown");
}
switch (imagetype) {
case 1 :
case 2 :
case 3 :
analysisResult->addValue(factory->compressionField, "None");
break;
case 9 :
case 10 :
case 11 :
analysisResult->addValue(factory->compressionField, "RLE");
break;
case 32 :
analysisResult->addValue(factory->compressionField, "Huffman, Delta & RLE");
break;
case 33 :
analysisResult->addValue(factory->compressionField, "Huffman, Delta, RLE (4-pass quadtree)");
break;
default :
analysisResult->addValue(factory->compressionField, "Unknown");
};
*/
uint16_t width = readLittleEndianUInt16(buf+12);
uint16_t height = readLittleEndianUInt16(buf+14);
analysisResult->addValue(factory->widthField, width);
analysisResult->addValue(factory->heightField, height);
uint8_t colorDepth = *(buf+16);
analysisResult->addValue(factory->colorDepthField, colorDepth);
analysisResult->addValue(factory->typeField, "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#RasterImage");
return in;
}
bool
TgaThroughAnalyzer::isReadyWithStream() {
return true;
}
//Factory
class Factory : public AnalyzerFactoryFactory {
public:
list<StreamThroughAnalyzerFactory*>
streamThroughAnalyzerFactories() const {
list<StreamThroughAnalyzerFactory*> af;
af.push_back(new TgaThroughAnalyzerFactory());
return af;
}
};
STRIGI_ANALYZER_FACTORY(Factory);
|
