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70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
#ifndef OPENMW_MWRENDER_LUMINANCECALCULATOR_H
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#define OPENMW_MWRENDER_LUMINANCECALCULATOR_H
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#include <array>
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#include <osg/FrameBufferObject>
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#include <osg/Program>
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#include <osg/Texture2D>
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namespace Shader
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{
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class ShaderManager;
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}
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namespace MWRender
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{
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class PingPongCanvas;
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class LuminanceCalculator
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{
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public:
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LuminanceCalculator() = default;
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LuminanceCalculator(Shader::ShaderManager& shaderManager);
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void draw(const PingPongCanvas& canvas, osg::RenderInfo& renderInfo, osg::State& state, osg::GLExtensions* ext,
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size_t frameId);
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bool isEnabled() const { return mEnabled; }
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void enable() { mEnabled = true; }
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void disable() { mEnabled = false; }
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void dirty(int w, int h);
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osg::ref_ptr<osg::Texture2D> getLuminanceTexture(size_t frameId) const;
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private:
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void compile();
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struct Container
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{
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osg::ref_ptr<osg::FrameBufferObject> sceneLumFbo;
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osg::ref_ptr<osg::FrameBufferObject> resolveSceneLumFbo;
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osg::ref_ptr<osg::FrameBufferObject> resolveFbo;
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osg::ref_ptr<osg::FrameBufferObject> luminanceProxyFbo;
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osg::ref_ptr<osg::Texture2D> mipmappedSceneLuminanceTex;
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osg::ref_ptr<osg::Texture2D> luminanceTex;
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osg::ref_ptr<osg::Texture2D> luminanceProxyTex;
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osg::ref_ptr<osg::StateSet> sceneLumSS;
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osg::ref_ptr<osg::StateSet> resolveSS;
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};
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std::array<Container, 2> mBuffers;
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osg::ref_ptr<osg::Program> mLuminanceProgram;
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osg::ref_ptr<osg::Program> mResolveProgram;
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bool mCompiled = false;
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bool mEnabled = false;
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bool mIsBlank = true;
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int mWidth = 1;
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int mHeight = 1;
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osg::Vec2f mScale = osg::Vec2f(1, 1);
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};
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}
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#endif
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