blob: bc70f39e13a63262de2d78a0cf63f22eaa7a34a8 (
plain)
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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the TGA plugin in the Qt ImageFormats module.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qtgahandler.h"
#include "qtgafile.h"
#include <QtCore/QVariant>
#include <QtCore/QDebug>
#include <QtGui/QImage>
QT_BEGIN_NAMESPACE
QTgaHandler::QTgaHandler()
: QImageIOHandler()
, tga(0)
{
}
QTgaHandler::~QTgaHandler()
{
delete tga;
}
bool QTgaHandler::canRead() const
{
if (!tga)
tga = new QTgaFile(device());
if (tga->isValid())
{
setFormat("tga");
return true;
}
return false;
}
bool QTgaHandler::canRead(QIODevice *device)
{
if (!device) {
qWarning("QTgaHandler::canRead() called with no device");
return false;
}
// TGA reader implementation needs a seekable QIODevice, so
// sequential devices are not supported
if (device->isSequential())
return false;
qint64 pos = device->pos();
bool isValid;
{
QTgaFile tga(device);
isValid = tga.isValid();
}
device->seek(pos);
return isValid;
}
bool QTgaHandler::read(QImage *image)
{
if (!canRead())
return false;
*image = tga->readImage();
return !image->isNull();
}
QVariant QTgaHandler::option(ImageOption option) const
{
if (option == Size && canRead()) {
return tga->size();
} else if (option == CompressionRatio) {
return tga->compression();
} else if (option == ImageFormat) {
return QImage::Format_ARGB32;
}
return QVariant();
}
void QTgaHandler::setOption(ImageOption option, const QVariant &value)
{
Q_UNUSED(option);
Q_UNUSED(value);
}
bool QTgaHandler::supportsOption(ImageOption option) const
{
return option == CompressionRatio
|| option == Size
|| option == ImageFormat;
}
QT_END_NAMESPACE
|
