////  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 <gpu/Framebuffer.h>#include <DependencyManager.h> namespace gpu {class Batch;} /// Stores cached textures, including render-to-texture targets.class FramebufferCache : public Dependency {    SINGLETON_DEPENDENCY    public:    // Shadow map size is static    static const int SHADOW_MAP_SIZE = 2048;     /// Sets the desired texture resolution for the framebuffer objects.     void setFrameBufferSize(QSize frameBufferSize);    const QSize& getFrameBufferSize() const { return _frameBufferSize; }      void setAmbientOcclusionResolutionLevel(int level);    gpu::FramebufferPointer getOcclusionFramebuffer();    gpu::TexturePointer getOcclusionTexture();    gpu::FramebufferPointer getOcclusionBlurredFramebuffer();    gpu::TexturePointer getOcclusionBlurredTexture();     /// Returns the framebuffer object used to render selfie maps;    gpu::FramebufferPointer getSelfieFramebuffer();     /// Returns a free framebuffer with a single color attachment for temp or intra-frame operations    gpu::FramebufferPointer getFramebuffer();     // TODO add sync functionality to the release, so we don't reuse a framebuffer being read from    /// Releases a free framebuffer back for reuse    void releaseFramebuffer(const gpu::FramebufferPointer& framebuffer); private:    FramebufferCache();    virtual ~FramebufferCache();     void createPrimaryFramebuffer();     gpu::FramebufferPointer _shadowFramebuffer;     gpu::FramebufferPointer _selfieFramebuffer;     gpu::FramebufferPointer _occlusionFramebuffer;    gpu::TexturePointer _occlusionTexture;        gpu::FramebufferPointer _occlusionBlurredFramebuffer;    gpu::TexturePointer _occlusionBlurredTexture;     QSize _frameBufferSize{ 100, 100 };    int _AOResolutionLevel = 1; // AO perform at half res     // Resize/reallocate the buffers used for AO    // the size of the AO buffers is scaled by the AOResolutionScale;    void resizeAmbientOcclusionBuffers();}; #endif // hifi_FramebufferCache_h