StelTextureMgr.hpp

/*
 * Stellarium
 * Copyright (C) 2006 Fabien Chereau
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335, USA.
 */

#ifndef _STELTEXTUREMGR_HPP_
#define _STELTEXTUREMGR_HPP_

#include "StelTexture.hpp"
#include <QObject>
#include <QMap>
#include <QWeakPointer>
#include <QMutex>

class QNetworkReply;
class QThread;
class QThreadPool;

class StelTextureMgr : QObject
{
    Q_OBJECT
public:
    StelTextureSP createTexture(const QString& filename, const StelTexture::StelTextureParams& params=StelTexture::StelTextureParams());

    StelTextureSP createTextureThread(const QString& url, const StelTexture::StelTextureParams& params=StelTexture::StelTextureParams(), bool lazyLoading=true);

    StelTextureSP wrapperForGLTexture(GLuint texId);

    int getGLMemoryUsage();

private:
    friend class StelTexture;
    friend class ImageLoader;
    friend class StelApp;

    StelTextureMgr(QObject* parent = Q_NULLPTR);

    unsigned int glMemoryUsage;

    QThreadPool* loaderThreadPool;

    StelTextureSP lookupCache(const QString& file);
    typedef QMap<QString,QWeakPointer<StelTexture> > TexCache;
    typedef QMap<GLuint,QWeakPointer<StelTexture> > IdMap;
    QMutex mutex;
    TexCache textureCache;
    IdMap idMap;
};


#endif // _STELTEXTUREMGR_HPP_