qktxhandler_p.h

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// Copyright (C) 2017 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
 
#ifndef QKTXHANDLER_H
#define QKTXHANDLER_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include "qtexturefilehandler_p.h"
 
#include <optional>
 
QT_BEGIN_NAMESPACE
 
struct KTXHeader;
 
class QKtxHandler : public QTextureFileHandler
{
public:
    using QTextureFileHandler::QTextureFileHandler;
    ~QKtxHandler() override;
 
    static bool canRead(const QByteArray &suffix, const QByteArray &block);
 
    QTextureFileData read() override;
 
private:
    bool checkHeader(const KTXHeader &header);
    std::optional<QMap<QByteArray, QByteArray>> decodeKeyValues(QByteArrayView view) const;
    quint32 decode(quint32 val) const;
 
    bool inverseEndian = false;
};
 
QT_END_NAMESPACE
 
#endif // QKTXHANDLER_H