/* -----------------------------------------------------------------------------
	GSFramework
	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
------------------------------------------------------------------------------*/


#ifndef	__NPICTUREIOCODEC__
#define	__NPICTUREIOCODEC__


		#include "filesystem/io_handle.h"
		#include "nstring/nstring.h"


namespace GS {
	class Picture;

/*
	@short	Picture I/O codec.
	@author Emmanuel Julien (ejulien@gsworks.fr)
*/
struct	PictureCodec
{
enum
{
		NoCaps			= 0,

		CanRead			= (1 << 0),					///< Codec can read data.
		CanWrite		= (1 << 1),					///< Codec can write data.
		WriteRaw		= (1 << 2),					///< Codec supports raw output.
		WriteLossy		= (1 << 3),					///< Codec supports lossy compression.
		WriteLossless	= (1 << 4),					///< Codec supports lossless compression.
		AlphaChannel	= (1 << 5),					///< Codec supports alpha channel.
		RealData		= (1 << 6)					///< Codec works on real data.
};

virtual	bool		Load(IO::Handle &, Picture &) = 0;
virtual	bool		Save(IO::Handle &, const Picture &) { return false; }

virtual	const char	*GetName() const = 0;
virtual	const char	*GetDesc() const = 0;

virtual	uint		GetCaps() const = 0;

virtual	~PictureCodec() {}
};

} // GS


#endif	// __NPICTUREIOCODEC__