/****************************************************************************
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** use the contact form at http://qt.digia.com/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** Alternatively, this file may be used under the terms of the GNU
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****************************************************************************/

#ifndef ETCPROVIDER_H
#define ETCPROVIDER_H

#include <qopengl.h>
#include <QQuickImageProvider>
#include <QtQuick/QSGTexture>
#include <QUrl>

class EtcProvider : public QQuickImageProvider
{
public:
    EtcProvider()
        : QQuickImageProvider(QQuickImageProvider::Texture)
    {}

    QQuickTextureFactory *requestTexture(const QString &id, QSize *size, const QSize &requestedSize);

    void setBaseUrl(const QUrl &base);

private:
    QUrl m_baseUrl;
};

class EtcTexture : public QSGTexture
{
    Q_OBJECT
public:
    EtcTexture();
    ~EtcTexture();

    void bind();

    QSize textureSize() const { return m_size; }
    int textureId() const;

    bool hasAlphaChannel() const { return false; }
    bool hasMipmaps() const { return false; }

    QByteArray m_data;
    QSize m_size;
    QSize m_paddedSize;
    GLuint m_texture_id;
    bool m_uploaded;
};

#endif // ETCPROVIDER_H