//------------------------------------------------------------------------------
// Author:		Gero Mueller <gero.mueller@cloo.de>
// Copyright:	(c) 2006 Gero Mueller
// License:		MIT License
//------------------------------------------------------------------------------

#ifndef BLUECORE_TEXTURE_MANAGER_H
#define BLUECORE_TEXTURE_MANAGER_H

// system includes
#include <map>
#include <string>

// project includes
#include "Utilities/Referenced.h"

namespace BlueCore
{
	// forward declaration
	class TextureManager;
	
	class Texture : public Referenced
	{
		unsigned int _Id;
		unsigned int _Width, _Height;
		
		~Texture();
		
	public:

	  Texture( unsigned int id, unsigned int width, unsigned int height ) :
			_Id( id ),
			_Width( width ),
			_Height( height )
		{
		}

	  unsigned int getWidth() const
		{
			return _Width;
		}

	  unsigned int getHeight() const
		{
			return _Height;
		}

	  unsigned int getId() const
		{
			return _Id;
		} 
	};

	class TextureManager : public Referenced
	{

	private:

		typedef std::map<std::string, Texture *> TextureMap;

		TextureMap textures;

		float _maxAnisotopy;
		unsigned int _maxTextureSize;
		unsigned int _lodDrop;
		bool _textureCompression;

		void clearTextures();

		bool saveToCache ( const std::string &name, int levels );

		bool loadFromCache (
			const std::string &filename,
			unsigned int &max_width,
			unsigned int &max_height  );
			
	   ~TextureManager();

	   void TextureDestroySlot(Referenced *referenced);
	   
	public:

		TextureManager();

		Texture *loadTexture (
			const std::string &filename,
			int mipmapLevel = -1,
			int compressionLevel = 1 );
	};
}

#endif