TextureGenerator.h

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#ifndef GLIMG_TEXTURE_GENERATOR_H
#define GLIMG_TEXTURE_GENERATOR_H

#include "ImageSet.h"
#include "TextureGeneratorExceptions.h"


namespace glimg
{

    enum ForcedConvertFlags
    {
        FORCE_SRGB_COLORSPACE_FMT   = 0x0001,   
        FORCE_BC1_ALPHA_FMT         = 0x0002,   
        FORCE_LUMINANCE_FMT         = 0x0008,   

//Not supported yet.
//      FORCE_REQUIRED_FMT          = 0x0010,   ///<Will only get image formats that are required to exist by OpenGL.
        FORCE_INTEGRAL_FMT          = 0x0020,   
        FORCE_SIGNED_FMT            = 0x0040,   
        FORCE_COLOR_RENDERABLE_FMT  = 0x0080,   

        FORCE_ARRAY_TEXTURE         = 0x0004,   
        USE_TEXTURE_STORAGE         = 0x0100,   
        FORCE_TEXTURE_STORAGE       = 0x0200,   
        USE_DSA                     = 0x0400,   
        FORCE_DSA                   = 0x0800,   
    };

    unsigned int GetInternalFormat(const ImageFormat &format, unsigned int forceConvertBits);

    struct OpenGLPixelTransferParams
    {
        unsigned int format;            
        unsigned int type;              
        unsigned int blockByteCount;    
    };

    OpenGLPixelTransferParams GetUploadFormatType(const ImageFormat &format, unsigned int forceConvertBits);

    unsigned int GetTextureType(const ImageSet *pImage, unsigned int forceConvertBits);

    unsigned int CreateTexture(const ImageSet *pImage, unsigned int forceConvertBits);

    void CreateTexture(unsigned int textureName, const ImageSet *pImage, unsigned int forceConvertBits);
}



#endif //GLIMG_TEXTURE_GENERATOR_H