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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qtexturefilereader_p.h"
#include "qpkmhandler_p.h"
#include "qktxhandler_p.h"
#include "qastchandler_p.h"
#include <QFileInfo>
QT_BEGIN_NAMESPACE
QTextureFileHandler::~QTextureFileHandler() = default;
QTextureFileReader::QTextureFileReader(QIODevice *device, const QString &fileName)
: m_device(device), m_fileName(fileName)
{
}
QTextureFileReader::~QTextureFileReader()
{
delete m_handler;
}
QTextureFileData QTextureFileReader::read()
{
if (!canRead())
return QTextureFileData();
return m_handler->read();
}
bool QTextureFileReader::canRead()
{
if (!checked) {
checked = true;
if (!init())
return false;
QByteArray headerBlock = m_device->peek(64);
QFileInfo fi(m_fileName);
QByteArray suffix = fi.suffix().toLower().toLatin1();
QByteArray logName = fi.fileName().toUtf8();
// Currently the handlers are hardcoded; later maybe a list of plugins
if (QPkmHandler::canRead(suffix, headerBlock)) {
m_handler = new QPkmHandler(m_device, logName);
} else if (QKtxHandler::canRead(suffix, headerBlock)) {
m_handler = new QKtxHandler(m_device, logName);
} else if (QAstcHandler::canRead(suffix, headerBlock)) {
m_handler = new QAstcHandler(m_device, logName);
}
// else if OtherHandler::canRead() ...etc.
}
return (m_handler != nullptr);
}
QList<QByteArray> QTextureFileReader::supportedFileFormats()
{
// Hardcoded for now
return {QByteArrayLiteral("pkm"), QByteArrayLiteral("ktx"), QByteArrayLiteral("astc")};
}
bool QTextureFileReader::init()
{
if (!m_device)
return false;
return m_device->isReadable();
}
QT_END_NAMESPACE
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