Image.h

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#ifndef GlobeEngine_Image_h
#define GlobeEngine_Image_h

#include "OpenGL_Includes.h"
#include <string>
#include <vmmlib/vector.hpp>

namespace ge {
    
    struct HeightBinaryMetadata{
        vmml::Vector2i size;
        int sampleFormat; //1:uint  2:int  3:float
        int bitPerSample;
        int samplePerPixel;
    };
    
    
    class Image
    {

    public:
        Image();
        ~Image();
        void clear();
        void create();
        void load(std::string _filename, bool _remoteAccess = false);
        void loadWithProperties(std::string _filename, vmml::Vector2i _extent, short _bitsPerPixel, bool _remoteAccess = false);
        bool isValid();
        size_t getBitsPerPixel();
        
    private:
        void clampToZerof(double _minValue);
        void clampToZeros(unsigned short _minValue);


    public:

        //__declspec(align(16)) union {
        union {
            float* alpha;
            unsigned short* alpha16;
            unsigned char* alpha8;
            unsigned char* rgba;
            unsigned char* rgb;
            void* raw;
        } data;

        GLint internal_format;
        GLenum pixel_format;
        GLenum data_type;

        size_t width;
        size_t height;

        bool valid;
    private:
        void loadImageWithFreeImage(std::string _filename);
        void loadBinaryHeightImage(std::string _filename, vmml::Vector2i _extent, short _bitsPerPixel);
        size_t bitsPerPixel;
        //size_t bytesPerRow;
    };
}

#endif