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#ifndef __ASURA_TEXTURE_H__
#define __ASURA_TEXTURE_H__

#include <asura-utils/math/rect.hpp>
#include <asura-utils/math/vector2.hpp>

#include "../core_config.h"

#include "render_state.h"
#include "gl.h"

namespace AsuraEngine
{
	namespace Graphics
	{

		class RenderTarget;

		enum WrapMode
		{
			WRAP_MODE_REPEAT,
			WRAP_MODE_MIRROR,
			WRAP_MODE_CLAMPTOEDGE,
			WRAP_MODE_CLAMPTOBORDER,
			//WRAP_MODE_PERAXIS, // UVвͬ4ֵ
		};

		enum FilterMode
		{
			FILTER_MODE_NEAREST,
			FILTER_MODE_LINEAR,
		};

		///
		/// ͼݵɫʽ
		///
		enum ColorFormat
		{
			COLOR_FORMAT_UNKNOWN,

			COLOR_FORMAT_RGBA8,   ///< RGBA8bits int
			COLOR_FORMAT_RGBA32F, ///< RGBA32bits float
		};

		///
		/// 2D࣬2d meshrender targetбʹáTextureȾԭϽǣϷ
		/// ϲԵѿϵΪ׼EditorҲϽΪԭ㣬Ϊ
		/// 㡣
		///
		ASURA_ABSTRACT class Texture
		{
		public:

			LUAX_DECL_ABSTRACT_FACTORY();

			Texture();
			virtual ~Texture();

			GLuint GetGLTextureHandle() const;

			void SetFilterMode(FilterMode min, FilterMode mag);
			void SetWrapMode(WrapMode wrapMode);

			void GetFilterMode();
			void GetWrapMode();

			///
			/// UVfilterΪ
			///
			void IsGenMipmap();

			///
			/// ȾtexturertϣԭϽǣң
			///
			virtual void Render(const RenderTarget* rt, const RenderState& state) = 0;

			/// 
			/// ȾtextureһֵrtϣԭϽǣң졣
			/// 
			virtual void Render(const RenderTarget* rt, const Math::Rectf& quad, const RenderState& state) = 0;

		protected:

			LUAX_DECL_ENUM(ColorFormat);
			LUAX_DECL_ENUM(FilterMode);
			LUAX_DECL_ENUM(WrapMode);

			GLuint     mTexHandle;

			FilterMode mMinFilter;
			FilterMode mMagFilter;

			WrapMode   mWrapMode;

			bool       mIsGenMipmap;

		};

		using Drawable = Texture;

	}
}

#endif