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path: root/source/modules/asura-core/graphics/texture.h
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#ifndef __ASURA_TEXTURE_H__
#define __ASURA_TEXTURE_H__

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

#include "../core_config.h"

#include "render_state.h"
#include "gfx_device.h"

namespace AsuraEngine
{
	namespace Graphics
	{

		class RenderTarget;

		/// UVʽ
		enum WrapMode
		{
			WRAP_MODE_REPEAT,
			WRAP_MODE_MIRROR,
			WRAP_MODE_CLAMPTOEDGE,
			WRAP_MODE_CLAMPTOBORDER,
		};

		/// ˲ģʽ
		enum FilterMode
		{
			FILTER_MODE_NEAREST,
			FILTER_MODE_LINEAR,
		};

		/// ͼݵɫʽ
		enum ColorFormat
		{
			COLOR_FORMAT_UNKNOWN,
			COLOR_FORMAT_RGBA8,   ///< RGBA8bits int
			COLOR_FORMAT_RGBA32F, ///< RGBA32bits float
		};

		/// ʽGPUڲCPUⲿʽ
		struct TextureFormat
		{
			GLenum internalformat; ///< GPUڲʽ
			GLenum externalformat; ///< CPUⲿʽ
			GLenum type;           ///< ⲿʽÿchannelֵ
		};

		///
		/// 2D࣬2d meshrender targetбʹáTextureȾԭϽǣϷϲԵѿ
		/// ϵΪ׼EditorҲϽΪԭ㣬Ϊ˷㡣
		///
		ASURA_ABSTRACT class Texture : public AEScripting::Object
		{
		public:

			LUAX_DECL_ABSTRACT_FACTORY(Texture);

			Texture();
			virtual ~Texture();

			GLuint GetGLTexture() const;

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

			void GetFilterMode();
			void GetWrapMode();

			/// UVfilterΪ
			bool IsGenMipmap();

		protected:

			/// תcolor formatΪtexture format
			TextureFormat ConvertColorFormat(const ColorFormat& colorformat);

			GLuint     mTexID;
			FilterMode mMinFilter;
			FilterMode mMagFilter;
			WrapMode   mWrapMode;
			bool       mIsGenMipmap;

			LUAX_DECL_ENUM(ColorFormat, 1);
			LUAX_DECL_ENUM(FilterMode, 1);
			LUAX_DECL_ENUM(WrapMode, 1);

			LUAX_DECL_METHOD(_SetFilterMode);
			LUAX_DECL_METHOD(_SetWrapMode);
			LUAX_DECL_METHOD(_GetFilterMode);
			LUAX_DECL_METHOD(_GetWrapMode);
			LUAX_DECL_METHOD(_IsGenMipmap);

		};

		typedef Texture Drawable;

	}
}

#endif