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texture.h

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/*
        $Id: texture.h,v 1.7 2001/03/04 17:54:49 mbn Exp $

        ------------------------------------------------------------------------
        ClanLib, the platform independent game SDK.

        This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
        version 2. See COPYING for details.

        For a total list of contributers see CREDITS.

        ------------------------------------------------------------------------
*/


#ifndef header_texture
#define header_texture

class CL_SurfaceProvider;
class CL_ResourceManager;
class CL_DisplayCard;

class CL_Texture
//: Texture loading class for OpenGL.
// <p>This class can load the image(s) from surface provider into OpenGL
// textures.</p>
//
// <p>This class works just like a <a class="CL_Surface">surface</a>, except that it
// requires the image width to be 2^n.</p>
{
public:
        static CL_Texture *create(CL_SurfaceProvider *provider, bool delete_provider=false);
        // Creates a texture from a surface provider.

        static CL_Texture *load(const char *id, CL_ResourceManager *manager);
        // Load the texture from a surface resource.

        virtual ~CL_Texture() { ; }

        virtual void bind(int texture_no=0)=0;
        // Bind the texture in OpenGL.

        virtual CL_SurfaceProvider *get_provider() const =0;
        // Returns the surface provider.

        virtual void reload()=0; 
        //: Forces surface to reload texture data from provider.

        virtual int get_width() const =0;
        //: Returns the width of the surface

        virtual int get_height() const =0;
        //: Returns the height of the texture

        virtual int get_num_frames() const =0;
        //: Returns the number of subtextures in the texture

        virtual void flush(CL_DisplayCard *card = NULL)=0;
        //: completely flushes textures (removes from video/system-memory)
};

#endif

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