animationthread.h

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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 3
 * of the License, or (at your option) any later version.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GRAPHICS_AURORA_ANIMATIONTHREAD_H
#define GRAPHICS_AURORA_ANIMATIONTHREAD_H

#include <queue>

#include <boost/atomic.hpp>

#include "glm/vec3.hpp"
#include "glm/vec4.hpp"

#include "src/common/mutex.h"
#include "src/common/thread.h"

namespace Graphics {

namespace Aurora {

class Model;

class AnimationThread : public Common::Thread {
public:
    AnimationThread();
    void pause();
    void resume();

    // .--- Processing pool
    void registerModel(Model *model);
    void unregisterModel(Model *model);
    void flush();
    // '---
private:
    struct PoolModel {
        Model *model;
        uint32 lastChanged;
        uint8 skippedCount; 

        PoolModel(Model *m);
    };

    typedef std::list<PoolModel> ModelList;
    typedef std::queue<Model *> ModelQueue;

    ModelList _models;
    ModelQueue _registerQueue;

    boost::atomic<bool> _paused;
    boost::atomic<bool> _flushing;

    Common::Semaphore _modelsSem;   
    Common::Semaphore _registerSem; 

    void threadMethod();
    void registerModelInternal(Model *model);
    void unregisterModelInternal(Model *model);
    uint8 getNumIterationsToSkip(Model *model) const;
};

} // End of namespace Aurora

} // End of namespace Engines

#endif // GRAPHICS_AURORA_ANIMATIONTHREAD_H