PxClothMeshDesc.h

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/*
 * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA CORPORATION and its licensors retain all intellectual property
 * and proprietary rights in and to this software, 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.
 */
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  


#ifndef PX_PHYSICS_NX_CLOTHMESHDESC
#define PX_PHYSICS_NX_CLOTHMESHDESC

#include "common/PxPhysXCommonConfig.h"
#include "geometry/PxSimpleTriangleMesh.h"

#ifndef PX_DOXYGEN
namespace physx
{
#endif

class PxClothMeshDesc
{
public:

    PxBoundedData points;

    PxBoundedData invMasses;

    PxBoundedData triangles;

    PxBoundedData quads;

    PxMeshFlags flags;

    PX_INLINE PxClothMeshDesc();
    PX_INLINE void setToDefault();
    PX_INLINE bool isValid() const;
};

PX_INLINE PxClothMeshDesc::PxClothMeshDesc()    //constructor sets to default
{
}

PX_INLINE void PxClothMeshDesc::setToDefault()
{
    *this = PxClothMeshDesc();
}

PX_INLINE bool PxClothMeshDesc::isValid() const
{
    if(points.count < 3)    //at least 1 trig's worth of points
        return false;
    if(points.count > 0xffff && flags & PxMeshFlag::e16_BIT_INDICES)
        return false;
    if(!points.data)
        return false;
    if(points.stride < sizeof(PxVec3))  //should be at least one point's worth of data
        return false;

    if(invMasses.data && invMasses.stride < sizeof(float))
        return false;
    if(invMasses.data && invMasses.count != points.count)
        return false;

    if (!triangles.count && !quads.count)   // no support for non-indexed mesh
        return false;
    if (triangles.count && !triangles.data)
        return false;
    if (quads.count && !quads.data)
        return false;

    PxU32 indexSize = (flags & PxMeshFlag::e16_BIT_INDICES) ? sizeof(PxU16) : sizeof(PxU32);
    if(triangles.count && triangles.stride < indexSize*3) 
        return false; 
    if(quads.count && quads.stride < indexSize*4)
        return false;

    return true;
}

#ifndef PX_DOXYGEN
} // namespace physx
#endif

#endif