MIPStage.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 MIPSTAGE_H_6014714286
#define MIPSTAGE_H_6014714286

#include <Carna/presets/VolumeRenderingStage.h>
#include <Carna/Carna.h>
#include <memory>

namespace Carna
{

namespace presets
{



// ----------------------------------------------------------------------------------
// MIPStage
// ----------------------------------------------------------------------------------

class CARNA_LIB MIPStage : public VolumeRenderingStage
{

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

public:
    
    const static unsigned int ROLE_INTENSITIES = 0;

    explicit MIPStage( unsigned int geometryType );

    virtual ~MIPStage();
    
    MIPStage* clone() const override;

    virtual void reshape( base::FrameRenderer& fr, unsigned int width, unsigned int height ) override;

    virtual void renderPass
        ( const base::math::Matrix4f& viewTransform
        , base::RenderTask& rt
        , const base::Viewport& vp ) override;
    
    void ascendLayer( const MIPLayer& layer );
    
    void appendLayer( MIPLayer* layer );
    
    MIPLayer* removeLayer( const MIPLayer& layer );

    std::size_t layersCount() const;

    MIPLayer& layer( std::size_t layerIndex );

    const MIPLayer& layer( std::size_t layerIndex ) const;

    void clearLayers();

protected:

    virtual void createVolumeSamplers( const std::function< void( unsigned int, base::Sampler* ) >& registerSampler ) override;

    virtual const base::ShaderProgram& acquireShader() override;

    virtual const std::string& uniformName( unsigned int role ) const override;

    virtual void configureShader() override;

    virtual void configureShader( const base::Renderable& ) override;

}; // MIPStage



}  // namespace Carna :: presets

}  // namespace Carna

#endif // MIPSTAGE_H_6014714286