FrameRenderer.h

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/*
 *  Copyright (C) 2010 - 2015 Leonid Kostrykin
 *
 *  Chair of Medical Engineering (mediTEC)
 *  RWTH Aachen University
 *  Pauwelsstr. 20
 *  52074 Aachen
 *  Germany
 *
 */

#ifndef FRAMERENDERER_H_6014714286
#define FRAMERENDERER_H_6014714286

#include <Carna/Carna.h>
#include <Carna/base/RenderStageSequence.h>
#include <Carna/base/Aggregation.h>
#include <Carna/base/noncopyable.h>
#include <Carna/base/math.h>
#include <string>

namespace Carna
{

namespace base
{



// ----------------------------------------------------------------------------------
// FrameRenderer
// ----------------------------------------------------------------------------------

class CARNA_LIB FrameRenderer : public RenderStageSequence
{

    NON_COPYABLE

    struct Details;
    const std::unique_ptr< Details > pimpl;

public:
    
    FrameRenderer( GLContext& glContext, unsigned int width, unsigned int height, bool fitSquare );

    virtual ~FrameRenderer();

    GLContext& glContext() const;
    
    virtual void clearStages() override;
    
    unsigned int width() const;
    
    unsigned int height() const;

    const Viewport& viewport() const;

    void setBackgroundColor( const math::Vector4f& );
    
    void reshape( unsigned int width, unsigned int height, bool fitSquare );
    
    void reshape( unsigned int width, unsigned int height );
    
    void render( Camera& cam, Node& root ) const;
    
    void render( Camera& cam ) const;

    struct RenderTextureParams
    {
        unsigned int unit;
        
        bool useDefaultSampler;
        
        bool useDefaultShader;

        std::string textureUniformName;

        float alphaFactor;

        RenderTextureParams( unsigned int unit );
    };

    void renderTexture( const RenderTextureParams& params ) const;
    
    const math::Statistics< double >& framesPerSecond() const;

private:

    void render( Camera& cam, Node& root, const Viewport& vp ) const;

}; // FrameRenderer



}  // namespace Carna :: base

}  // namespace Carna

#endif // FRAMERENDERER_H_6014714286