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39
40#include "qtexturefilereader_p.h"
41
42#include "qpkmhandler_p.h"
43#include "qktxhandler_p.h"
44#include "qastchandler_p.h"
45
46#include <QFileInfo>
47
48QT_BEGIN_NAMESPACE
49
50QTextureFileReader::QTextureFileReader(QIODevice *device, const QString &fileName)
51 : m_device(device), m_fileName(fileName)
52{
53}
54
55QTextureFileReader::~QTextureFileReader()
56{
57 delete m_handler;
58}
59
60QTextureFileData QTextureFileReader::read()
61{
62 if (!canRead())
63 return QTextureFileData();
64 return m_handler->read();
65}
66
67bool QTextureFileReader::canRead()
68{
69 if (!checked) {
70 checked = true;
71 if (!init())
72 return false;
73
74 QByteArray headerBlock = m_device->peek(64);
75 QFileInfo fi(m_fileName);
76 QByteArray suffix = fi.suffix().toLower().toLatin1();
77 QByteArray logName = fi.fileName().toUtf8();
78
79 // Currently the handlers are hardcoded; later maybe a list of plugins
80 if (QPkmHandler::canRead(suffix, headerBlock)) {
81 m_handler = new QPkmHandler(m_device, logName);
82 } else if (QKtxHandler::canRead(suffix, headerBlock)) {
83 m_handler = new QKtxHandler(m_device, logName);
84 } else if (QAstcHandler::canRead(suffix, headerBlock)) {
85 m_handler = new QAstcHandler(m_device, logName);
86 }
87 // else if OtherHandler::canRead() ...etc.
88 }
89 return (m_handler != nullptr);
90}
91
92QList<QByteArray> QTextureFileReader::supportedFileFormats()
93{
94 // Hardcoded for now
95 return {QByteArrayLiteral("pkm"), QByteArrayLiteral("ktx"), QByteArrayLiteral("astc")};
96}
97
98bool QTextureFileReader::init()
99{
100 if (!m_device)
101 return false;
102 return m_device->isReadable();
103}
104
105QT_END_NAMESPACE
106