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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) 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.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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef Q3DSIMAGEMANAGERER_P_H
#define Q3DSIMAGEMANAGERER_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 "q3dsruntimeglobal_p.h"
#include <QHash>
#include <QUrl>
#include <QImage>
#include <Qt3DRender/QAbstractTexture>
#include <Qt3DRender/QTextureImageData>
QT_BEGIN_NAMESPACE
class Q3DSProfiler;
namespace Qt3DCore {
class QEntity;
}
class Q3DSImageManager
{
public:
enum ImageFlag {
GenerateMipMapsForIBL = 0x01
};
Q_DECLARE_FLAGS(ImageFlags, ImageFlag)
static Q3DSImageManager &instance();
void invalidate();
Qt3DRender::QAbstractTexture *newTextureForImage(Qt3DCore::QEntity *parent,
ImageFlags flags,
const QByteArray &id,
Q3DSProfiler *profiler = nullptr,
const char *profName = nullptr, ...);
void setSource(Qt3DRender::QAbstractTexture *tex, const QUrl &source);
void setSource(Qt3DRender::QAbstractTexture *tex, const QImage &image);
QSize size(Qt3DRender::QAbstractTexture *tex) const;
Qt3DRender::QAbstractTexture::TextureFormat format(Qt3DRender::QAbstractTexture *tex) const;
bool wasCached(Qt3DRender::QAbstractTexture *tex) const;
qint64 ioTimeMsecs() const { return m_ioTime; }
qint64 iblTimeMsecs() const { return m_iblTime; }
private:
QVector<Qt3DRender::QTextureImageDataPtr> load(const QUrl &source, ImageFlags flags, bool *wasCached);
int blockSizeForFormat(QOpenGLTexture::TextureFormat format);
QByteArray generateIblMip(int w, int h, int prevW, int prevH,
QOpenGLTexture::TextureFormat format,
int blockSize, const QByteArray &prevLevelData);
struct TextureInfo {
ImageFlags flags;
QUrl source;
QSize size;
Qt3DRender::QAbstractTexture::TextureFormat format = Qt3DRender::QAbstractTexture::NoFormat;
bool wasCached = false;
};
QHash<Qt3DRender::QAbstractTexture *, TextureInfo> m_metadata;
QHash<QString, QVector<Qt3DRender::QTextureImageDataPtr> > m_cache;
qint64 m_ioTime = 0;
qint64 m_iblTime = 0;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(Q3DSImageManager::ImageFlags)
QT_END_NAMESPACE
#endif // Q3DSIMAGEMANAGERER_P_H
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