Eigene Dateien/FlowVis/src/VProgram.h

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#pragma once

#ifndef __v_program_h
#define __v_program_h

#include "VShader.h"

class VProgram
{
public:

        VProgram() : m_uProgram(0)
        {
                m_refCount = new int;
                *m_refCount = 0; 
                //initialize();
        };

        VProgram(const VShader & shaShader) : m_uProgram(0)
        {
                m_refCount = new int;
                *m_refCount = 1;
                initialize();
                attach(shaShader);
        };

        VProgram(const VShader & shaShaderA, const VShader & shaShaderB) : m_uProgram(0)
        {
                m_refCount = new int;
                *m_refCount = 1;
                initialize();
                attach(shaShaderA);
                attach(shaShaderB);
        };

        ~VProgram()
        {
                --*m_refCount;
                if(*m_refCount == 0)
                {
                        uninitialize();
                        delete m_refCount;
                        m_refCount = 0;
                }
        };

        VProgram & operator=(const VProgram & rhs)
        {
                if(this != &rhs)
                {
                        --*m_refCount;
                        if(*m_refCount == 0)
                        {
                                uninitialize();
                                delete m_refCount;
                                m_refCount = 0;
                        }
                        m_refCount = rhs.m_refCount;
                        m_uProgram = rhs.m_uProgram;
                        m_lisShaders = rhs.m_lisShaders;
                        ++*m_refCount;
                }
                return (*this);
        }

        void attach(const VShader & shaShader);

        void detach(const VShader & shaShader);

        void bind();

        void release();

        const int getUniformLocation(const std::string & strName) const;

        const int getAttributeLocation(const std::string & strName) const;

protected:
        
        VProgram(const VProgram & rhs)
        {
                m_refCount = rhs.m_refCount;
                m_uProgram = rhs.m_uProgram;
                m_lisShaders = rhs.m_lisShaders;
                ++*m_refCount;
        }

        void link();

        void initialize();

        void uninitialize();

private:

        int * m_refCount;                                       
        unsigned int m_uProgram;                        
        std::list<VShader> m_lisShaders;                
};

#endif //__v_program_h

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