overte-HifiExperiments/libraries/render-utils/src/FramebufferCache.h
2016-06-10 17:18:12 -07:00

122 lines
3.9 KiB
C++

//
// 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; }
/// Returns a pointer to the primary framebuffer object. This render target includes a depth component, and is
/// used for scene rendering.
gpu::FramebufferPointer getPrimaryFramebuffer();
gpu::TexturePointer getPrimaryDepthTexture();
gpu::TexturePointer getPrimaryColorTexture();
gpu::FramebufferPointer getDeferredFramebuffer();
gpu::FramebufferPointer getDeferredFramebufferDepthColor();
gpu::TexturePointer getDeferredColorTexture();
gpu::TexturePointer getDeferredNormalTexture();
gpu::TexturePointer getDeferredSpecularTexture();
gpu::FramebufferPointer getDepthPyramidFramebuffer();
gpu::TexturePointer getDepthPyramidTexture();
gpu::FramebufferPointer getCurvatureFramebuffer();
gpu::TexturePointer getCurvatureTexture();
gpu::FramebufferPointer getScatteringFramebuffer();
gpu::TexturePointer getScatteringTexture();
void setAmbientOcclusionResolutionLevel(int level);
gpu::FramebufferPointer getOcclusionFramebuffer();
gpu::TexturePointer getOcclusionTexture();
gpu::FramebufferPointer getOcclusionBlurredFramebuffer();
gpu::TexturePointer getOcclusionBlurredTexture();
gpu::TexturePointer getLightingTexture();
gpu::FramebufferPointer getLightingFramebuffer();
/// 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 _primaryFramebuffer;
gpu::TexturePointer _primaryDepthTexture;
gpu::TexturePointer _primaryColorTexture;
gpu::FramebufferPointer _deferredFramebuffer;
gpu::FramebufferPointer _deferredFramebufferDepthColor;
gpu::TexturePointer _deferredColorTexture;
gpu::TexturePointer _deferredNormalTexture;
gpu::TexturePointer _deferredSpecularTexture;
gpu::TexturePointer _lightingTexture;
gpu::FramebufferPointer _lightingFramebuffer;
gpu::FramebufferPointer _shadowFramebuffer;
gpu::FramebufferPointer _selfieFramebuffer;
gpu::FramebufferPointer _depthPyramidFramebuffer;
gpu::TexturePointer _depthPyramidTexture;
gpu::FramebufferPointer _curvatureFramebuffer;
gpu::TexturePointer _curvatureTexture;
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