// Copyright (C) 2002-2010 Nikolaus Gebhardt

// This file is part of the "Irrlicht Engine".

// For conditions of distribution and use, see copyright notice in irrlicht.h



#ifndef __C_TRIANGLE_RENDERER_TEXTURE_GOURAUD_H_INCLUDED__

#define __C_TRIANGLE_RENDERER_TEXTURE_GOURAUD_H_INCLUDED__



#include "IrrCompileConfig.h"



#ifndef _IRR_COMPILE_WITH_SOFTWARE_

// forward declarations for create methods

namespace irr

{

namespace video

{

	class ITriangleRenderer;

	class IZBuffer;

} // end namespace video

} // end namespace irr



#else



#include "ITriangleRenderer.h"

#include "IImage.h"



namespace irr

{

namespace video

{

	//! CTRTextureGouraud class

	class CTRTextureGouraud : public ITriangleRenderer

	{

	public:



		//! constructor

		CTRTextureGouraud(IZBuffer* zbuffer);

	

		//! destructor

		virtual ~CTRTextureGouraud();

	

		//! sets a render target

		virtual void setRenderTarget(video::IImage* surface, const core::rect<s32>& viewPort);



		//! draws an indexed triangle list

		virtual void drawIndexedTriangleList(S2DVertex* vertices, s32 vertexCount, const u16* indexList, s32 triangleCount);



		//! en or disables the backface culling

		virtual void setBackfaceCulling(bool enabled = true);



		//! sets the Texture

		virtual void setTexture(video::IImage* texture);



	protected:



		//! vertauscht zwei vertizen

		inline void swapVertices(const S2DVertex** v1, const S2DVertex** v2)

		{

			const S2DVertex* b = *v1;

			*v1 = *v2;

			*v2 = b;

		}



		video::IImage* RenderTarget;

		core::rect<s32> ViewPortRect;



		IZBuffer* ZBuffer;



		s32 SurfaceWidth;

		s32 SurfaceHeight;

		bool BackFaceCullingEnabled;

		TZBufferType* lockedZBuffer;

		u16* lockedSurface;

		u16* lockedTexture;

		s32 lockedTextureWidth;

		s32 textureXMask, textureYMask;

		video::IImage* Texture;

	};



} // end namespace video

} // end namespace irr



#endif



#endif