render.h

/*
    This file is part of Nori, a simple educational ray tracer
 
    Copyright (c) 2015 by Romain Prévost
 
    Nori is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License Version 3
    as published by the Free Software Foundation.
 
    Nori 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, see <http://www.gnu.org/licenses/>.
*/
 
#if !defined(__NORI_RENDER_H)
#define __NORI_RENDER_H
 
#include <nori/common.h>
#include <thread>
#include <nori/block.h>
#include <atomic>
 
NORI_NAMESPACE_BEGIN
 
class RenderThread {
 
public:
    RenderThread(ImageBlock & block);
    ~RenderThread();
 
    void renderScene(const std::string & filename);
 
    bool isBusy();
    void stopRendering();
 
    float getProgress();
 
protected:
    Scene* m_scene = nullptr;
    ImageBlock & m_block;
    std::thread m_render_thread;
    std::atomic<int> m_render_status; // 0: free, 1: busy, 2: interruption, 3: done
    std::atomic<float> m_progress;
 
};
 
NORI_NAMESPACE_END
 
#endif //__NORI_RENDER_H