// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2017 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  


#ifndef QUANTIZER_H
#define QUANTIZER_H

#include "foundation/Px.h"

namespace physx
{

	//////////////////////////////////////////////////////////////////////////
	// K-means quantization class
	// see http://en.wikipedia.org/wiki/K-means_clustering
	// implementation from John Ratcliff http://codesuppository.blogspot.ch/2010/12/k-means-clustering-algorithm.html
	class Quantizer
	{
	public:
		// quantize the input vertices
		virtual const PxVec3* kmeansQuantize3D(PxU32 vcount,
													const PxVec3 *vertices,
													PxU32 stride,
													bool denormalizeResults,
													PxU32 maxVertices,
													PxU32 &outVertsCount) = 0;

		// returns the denormalized scale
		virtual const PxVec3& getDenormalizeScale(void) const = 0;

		// returns the denormalized center
		virtual const PxVec3& getDenormalizeCenter(void) const = 0;

		// release internal data
		virtual void release(void) = 0;


	protected:
		virtual ~Quantizer(void)
		{

		}
	};

	// creates the quantizer class
	Quantizer * createQuantizer(void);

}

#endif