Material.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 MATERIAL_H_6014714286
#define MATERIAL_H_6014714286

#include <Carna/Carna.h>
#include <Carna/base/GeometryFeature.h>
#include <Carna/base/ShaderManager.h>
#include <Carna/base/ShaderUniform.h>
#include <Carna/base/noncopyable.h>
#include <string>

namespace Carna
{

namespace base
{



// ----------------------------------------------------------------------------------
// Material
// ----------------------------------------------------------------------------------
    
class CARNA_LIB Material : public GeometryFeature
{

    NON_COPYABLE

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

    const ShaderProgram* shader;
    
protected:

    friend class GeometryFeature;
    
    Material( const std::string& shaderName );
    
    virtual ~Material();

public:

    const std::string shaderName;

    void addParameter( ShaderUniformBase* uniform );
    
    template< typename ParameterType >
    void setParameter( const std::string& name, const ParameterType& value );

    void clearParameters();

    void removeParameter( const std::string& name );
    
    bool hasParameter( const std::string& name ) const;
    
    const ShaderUniformBase& parameter( const std::string& name ) const;

    static Material& create( const std::string& shaderName );

    virtual bool controlsSameVideoResource( const GeometryFeature& other ) const override;

    // ------------------------------------------------------------------------------
    // Material :: ManagedInterface
    // ------------------------------------------------------------------------------
    
    class CARNA_LIB ManagedInterface : public GeometryFeature::ManagedInterface
    {
    
    public:
    
        ManagedInterface( Material& material );
    
        virtual ~ManagedInterface();

        void activate( RenderState& renderState ) const;

        const ShaderProgram& shader() const;
    
        Material& material;
    
    }; // Material :: ManagedInterface

    // ------------------------------------------------------------------------------
    
    virtual ManagedInterface* acquireVideoResource() override;

}; // Material

    
template< typename ParameterType >
void Material::setParameter( const std::string& name, const ParameterType& value )
{
    addParameter( new ShaderUniform< ParameterType >( name, value ) );
}



}  // namespace Carna :: base

}  // namespace Carna

#endif // MATERIAL_H_6014714286