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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSGCOMPRESSEDTEXTURE_P_H
#define QSGCOMPRESSEDTEXTURE_P_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 <QSGTexture>
#include <QtQuick/private/qsgcontext_p.h>
#include <QQuickTextureFactory>
#include <QOpenGLFunctions>
QT_BEGIN_NAMESPACE
struct Q_QUICK_PRIVATE_EXPORT QSGCompressedTextureData
{
QByteArray logName;
QByteArray data;
QSize size;
uint format = 0;
int dataOffset = 0;
int dataLength = 0;
bool hasAlpha = false;
bool isValid() const;
int sizeInBytes() const;
};
Q_QUICK_PRIVATE_EXPORT QDebug operator<<(QDebug, const QSGCompressedTextureData *);
class Q_QUICK_PRIVATE_EXPORT QSGCompressedTexture : public QSGTexture
{
Q_OBJECT
public:
typedef QSharedPointer<QSGCompressedTextureData> DataPtr;
QSGCompressedTexture(const DataPtr& texData);
virtual ~QSGCompressedTexture();
int textureId() const override;
QSize textureSize() const override;
bool hasAlphaChannel() const override;
bool hasMipmaps() const override;
void bind() override;
const QSGCompressedTextureData *textureData();
static bool formatIsOpaque(quint32 glTextureFormat);
protected:
DataPtr m_textureData;
QSize m_size;
mutable uint m_textureId = 0;
bool m_hasAlpha = false;
bool m_uploaded = false;
};
namespace QSGAtlasTexture {
class Manager;
}
class Q_QUICK_PRIVATE_EXPORT QSGCompressedTextureFactory : public QQuickTextureFactory
{
public:
QSGCompressedTextureFactory(const QSGCompressedTexture::DataPtr& texData);
QSGTexture *createTexture(QQuickWindow *) const override;
int textureByteCount() const override;
QSize textureSize() const override;
protected:
QSGCompressedTexture::DataPtr m_textureData;
private:
friend class QSGAtlasTexture::Manager;
};
QT_END_NAMESPACE
#endif // QSGCOMPRESSEDTEXTURE_P_H
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