/*****************************************************************************
 *	Texture2D.h 															 *
 *																			 *
 *	XFX::Graphics::Texture2D class definition file  						 *
 *	Copyright (c) XFX Team. All Rights Reserved 							 *
 *****************************************************************************/
#ifndef _XFX_GRAPHICS_TEXTURE2D_
#define _XFX_GRAPHICS_TEXTURE2D_

#include "Texture.h"
#include <System/IO/Stream.h>
#include <System/Types.h>

using namespace System;
using namespace System::IO;

namespace XFX
{
	struct Rectangle;

	namespace Content
	{
		class Texture2DReader;
	}

	namespace Graphics
	{
		class GraphicsDevice;

		/**
		 * Represents a 2D grid of texels.
		 */
		class Texture2D : public Texture
		{
			friend class XFX::Content::Texture2DReader;

		private:
			bool _isDisposed; // True when the texture has been disposed
			int _numberOfLevels; // The number of mip levels for the texture
			SurfaceFormat_t _surfaceFormat; // The colour format of the texture
			int textureId; // The reference ID of the texture in OpenGL memory
			uint* textureData;

			void Load(byte buffer[]);

		protected:
			void Dispose(bool disposing);

		public:
			Rectangle getBounds() const;
			SurfaceFormat_t Format() const;
			const int Height;
			const int Width;
			
			Texture2D(GraphicsDevice * const graphicsDevice, const int width, const int height);
			Texture2D(GraphicsDevice * const graphicsDevice, const int width, const int height, bool mipmap, const SurfaceFormat_t format);
			virtual ~Texture2D();

			static Texture2D* FromStream(GraphicsDevice * const graphicsDevice, Stream * const stream);
			static Texture2D* FromStream(GraphicsDevice * const graphicsDevice, Stream * const stream, int width, int height, bool zoom);
			void GetData(uint data[], const int startIndex, const int elementCount) const;
			static const Type& GetType();
			void SaveAsJpeg(Stream * const stream, int width, int height);
			void SaveAsPng(Stream * const stream, int width, int height);
			void SetData(uint data[], const int startIndex, const int elementCount);

			bool operator ==(const Texture2D& right) const;
			bool operator !=(const Texture2D& right) const;
		};
	}
}

#endif //_XFX_GRAPHICS_TEXTURE2D_