/*
 * Copyright © 2011-2020 Frictional Games
 * 
 * This file is part of Amnesia: A Machine For Pigs.
 * 
 * Amnesia: A Machine For Pigs is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version. 

 * Amnesia: A Machine For Pigs is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Amnesia: A Machine For Pigs.  If not, see <https://www.gnu.org/licenses/>.
 */

#ifndef HPL_TEXTURE_MANAGER_H
#define HPL_TEXTURE_MANAGER_H

#include "resources/ResourceManager.h"
#include "graphics/Texture.h"

namespace hpl {

	class cGraphics;
	class cResources;
	class iTexture;
	class cBitmapLoaderHandler;
	
	//------------------------------------------------------
	
	typedef std::map<tString, iTexture*> tTextureAttenuationMap;
	typedef std::map<tString, iTexture*>::iterator tTextureAttenuationMapIt;
	
	//------------------------------------------------------

	class cTextureManager : public iResourceManager
	{
	public:
		cTextureManager(cGraphics* apGraphics,cResources *apResources);
		~cTextureManager();

		iTexture* Create1D(	const tString& asName,bool abUseMipMaps, eTextureUsage aUsage=eTextureUsage_Normal,
							unsigned int alTextureSizeLevel=0);
		
		iTexture* Create2D(	const tString& asName,bool abUseMipMaps,eTextureType aType= eTextureType_2D,
							eTextureUsage aUsage=eTextureUsage_Normal,unsigned int alTextureSizeLevel=0);

		iTexture* Create3D(	const tString& asName,bool abUseMipMaps, eTextureUsage aUsage=eTextureUsage_Normal,
							unsigned int alTextureSizeLevel=0);

		iTexture* CreateFlattened3D(	const tString& asName,bool abUseMipMaps, eTextureUsage aUsage=eTextureUsage_Normal,
							unsigned int alTextureSizeLevel=0);
		/**
		 * Creates an animated texture. The name must be [name]01.[ext]. And then the textures in the animation must
		 * be named [name]01.[ext], [name]02.[ext], etc 
		 */
		iTexture* CreateAnim(	const tString& asFirstFrameName,bool abUseMipMaps, eTextureType aType,
								eTextureUsage aUsage=eTextureUsage_Normal,
								unsigned int alTextureSizeLevel=0);

		iTexture* CreateCubeMap(const tString& asName,bool abUseMipMaps, eTextureUsage aUsage=eTextureUsage_Normal,
								unsigned int alTextureSizeLevel=0);


		void Destroy(iResourceBase* apResource);
		void Unload(iResourceBase* apResource);

		void Update(float afTimeStep);

		int GetMemoryUsage(){ return mlMemoryUsage;}

	private:
		iTexture* CreateSimpleTexture(const tString& asName,bool abUseMipMaps, 
									eTextureUsage aUsage, eTextureType aType, 
									unsigned int alTextureSizeLevel,
                                    bool isFlattened3d = false);

		iTexture* FindTexture2D(const tString &asName, tWString &asFilePath);

		tTextureAttenuationMap m_mapAttenuationTextures;
		
		tStringVec mvCubeSideSuffixes;

		int mlMemoryUsage;

		cGraphics* mpGraphics;
		cResources* mpResources;
		cBitmapLoaderHandler *mpBitmapLoaderHandler;
	};

};
#endif // HPL_TEXTURE_MANAGER_H
