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00020 // or patent rights of NVIDIA Corporation. Details are subject to change without notice.
00021 // This code supersedes and replaces all information previously supplied.
00022 // NVIDIA Corporation products are not authorized for use as critical
00023 // components in life support devices or systems without express written approval of
00024 // NVIDIA Corporation.
00025 //
00026 // Copyright (c) 2008-2017 NVIDIA Corporation. All rights reserved.
00027 // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
00028 // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
00029 
00030 
00031 #ifndef PX_PHYSICS_GEOMUTILS_NX_SIMPLETRIANGLEMESH
00032 #define PX_PHYSICS_GEOMUTILS_NX_SIMPLETRIANGLEMESH
00033 
00037 #include "foundation/PxVec3.h"
00038 #include "foundation/PxFlags.h"
00039 #include "common/PxCoreUtilityTypes.h"
00040 #include "common/PxPhysXCommonConfig.h"
00041 
00042 #if !PX_DOXYGEN
00043 namespace physx
00044 {
00045 #endif
00046 
00050 struct PxMeshFlag
00051 {
00052     enum Enum
00053     {
00067         eFLIPNORMALS        =   (1<<0),
00068         e16_BIT_INDICES     =   (1<<1)  
00069     };
00070 };
00071 
00077 typedef PxFlags<PxMeshFlag::Enum,PxU16> PxMeshFlags;
00078 PX_FLAGS_OPERATORS(PxMeshFlag::Enum,PxU16)
00079 
00080 
00081 
00084 class PxSimpleTriangleMesh
00085 {
00086 public:
00087 
00091     PxBoundedData points;
00092 
00108     PxBoundedData triangles;
00109 
00113     PxMeshFlags flags;
00114 
00118     PX_INLINE PxSimpleTriangleMesh();   
00122     PX_INLINE void setToDefault();
00126     PX_INLINE bool isValid() const;
00127 };
00128 
00129 
00130 PX_INLINE PxSimpleTriangleMesh::PxSimpleTriangleMesh()
00131 {
00132 }
00133 
00134 PX_INLINE void PxSimpleTriangleMesh::setToDefault()
00135 {
00136     *this = PxSimpleTriangleMesh();
00137 }
00138 
00139 PX_INLINE bool PxSimpleTriangleMesh::isValid() const
00140 {
00141     // Check geometry
00142     if(points.count > 0xffff && flags & PxMeshFlag::e16_BIT_INDICES)
00143         return false;
00144     if(!points.data)
00145         return false;
00146     if(points.stride < sizeof(PxVec3))  //should be at least one point's worth of data
00147         return false;
00148 
00149     // Check topology
00150     // The triangles pointer is not mandatory
00151     if(triangles.data)
00152     {
00153         // Indexed mesh
00154         PxU32 limit = (flags & PxMeshFlag::e16_BIT_INDICES) ? sizeof(PxU16)*3 : sizeof(PxU32)*3;
00155         if(triangles.stride < limit) 
00156             return false; 
00157     }
00158     return true;
00159 }
00160 
00161 #if !PX_DOXYGEN
00162 } // namespace physx
00163 #endif
00164 
00166 #endif