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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 "qtexturefilereader_p.h"
#include "qpkmhandler_p.h"
#include "qktxhandler_p.h"
#include "qastchandler_p.h"
#include <QFileInfo>
QT_BEGIN_NAMESPACE
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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