FramebufferCache.h

//
//  Created by Bradley Austin Davis on 2015/07/20
//  Copyright 2015 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
 
#ifndef hifi_FramebufferCache_h
#define hifi_FramebufferCache_h
 
#include <QSize>
 
#include <mutex>
#include <gpu/Forward.h>
#include <DependencyManager.h>
 
class FramebufferCache : public Dependency {
    SINGLETON_DEPENDENCY
    
public:
    // Shadow map size is static
    static const int SHADOW_MAP_SIZE = 2048;
 
    void setFrameBufferSize(QSize frameBufferSize);
    const QSize& getFrameBufferSize() const { return _frameBufferSize; } 
 
    gpu::FramebufferPointer getFramebuffer();
 
    // TODO add sync functionality to the release, so we don't reuse a framebuffer being read from
    void releaseFramebuffer(const gpu::FramebufferPointer& framebuffer);
 
private:
    void createPrimaryFramebuffer();
 
    gpu::FramebufferPointer _shadowFramebuffer;
 
    QSize _frameBufferSize{ 100, 100 };
 
    std::mutex _mutex;
    std::list<gpu::FramebufferPointer> _cachedFramebuffers;
};
 
#endif // hifi_FramebufferCache_h