#include <btStridingMeshInterface.h>

Public Member Functions
	btStridingMeshInterface ()
virtual	~btStridingMeshInterface ()
virtual void	InternalProcessAllTriangles (btInternalTriangleIndexCallback *callback, const btVector3 &aabbMin, const btVector3 &aabbMax) const
void	calculateAabbBruteForce (btVector3 &aabbMin, btVector3 &aabbMax)
	brute force method to calculate aabb
virtual void	getLockedVertexIndexBase (unsigned char vertexbase, int &numverts, PHY_ScalarType &type, int &stride, unsigned char indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0)=0
virtual void	getLockedReadOnlyVertexIndexBase (const unsigned char vertexbase, int &numverts, PHY_ScalarType &type, int &stride, const unsigned char indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0) const =0
virtual void	unLockVertexBase (int subpart)=0
virtual void	unLockReadOnlyVertexBase (int subpart) const =0
virtual int	getNumSubParts () const =0
virtual void	preallocateVertices (int numverts)=0
virtual void	preallocateIndices (int numindices)=0
virtual bool	hasPremadeAabb () const
virtual void	setPremadeAabb (const btVector3 &aabbMin, const btVector3 &aabbMax) const
virtual void	getPremadeAabb (btVector3 aabbMin, btVector3 aabbMax) const
const btVector3 &	getScaling () const
void	setScaling (const btVector3 &scaling)
virtual int	calculateSerializeBufferSize () const
virtual const char *	serialize (void dataBuffer, btSerializer serializer) const
	fills the dataBuffer and returns the struct name (and 0 on failure)
Protected Attributes
btVector3	m_scaling

Detailed Description

The btStridingMeshInterface is the interface class for high performance generic access to triangle meshes, used in combination with btBvhTriangleMeshShape and some other collision shapes. Using index striding of 3*sizeof(integer) it can use triangle arrays, using index striding of 1*sizeof(integer) it can handle triangle strips. It allows for sharing graphics and collision meshes. Also it provides locking/unlocking of graphics meshes that are in gpu memory.

Definition at line 30 of file btStridingMeshInterface.h.

Constructor & Destructor Documentation

btStridingMeshInterface::btStridingMeshInterface ( ) [inline]

Definition at line 37 of file btStridingMeshInterface.h.

btStridingMeshInterface::~btStridingMeshInterface ( ) [virtual]

Definition at line 19 of file btStridingMeshInterface.cpp.

Member Function Documentation

void btStridingMeshInterface::calculateAabbBruteForce	(	btVector3 &	aabbMin,
		btVector3 &	aabbMax
	)

brute force method to calculate aabb

Definition at line 176 of file btStridingMeshInterface.cpp.

References BT_LARGE_FLOAT, and InternalProcessAllTriangles().

SIMD_FORCE_INLINE int btStridingMeshInterface::calculateSerializeBufferSize ( ) const [virtual]

Definition at line 155 of file btStridingMeshInterface.h.

virtual void btStridingMeshInterface::getLockedReadOnlyVertexIndexBase	(	const unsigned char **	vertexbase,
		int &	numverts,
		PHY_ScalarType &	type,
		int &	stride,
		const unsigned char **	indexbase,
		int &	indexstride,
		int &	numfaces,
		PHY_ScalarType &	indicestype,
		int	subpart = `0`
	)		const `[pure virtual]`

Referenced by btGenerateInternalEdgeInfo(), GetHitTriangle(), InternalProcessAllTriangles(), btGImpactMeshShapePart::TrimeshPrimitiveManager::lock(), and serialize().

virtual void btStridingMeshInterface::getLockedVertexIndexBase	(	unsigned char **	vertexbase,
		int &	numverts,
		PHY_ScalarType &	type,
		int &	stride,
		unsigned char **	indexbase,
		int &	indexstride,
		int &	numfaces,
		PHY_ScalarType &	indicestype,
		int	subpart = `0`
	)		`[pure virtual]`

get read and write access to a subpart of a triangle mesh this subpart has a continuous array of vertices and indices in this way the mesh can be handled as chunks of memory with striding very similar to OpenGL vertexarray support make a call to unLockVertexBase when the read and write access is finished

virtual int btStridingMeshInterface::getNumSubParts ( ) const [pure virtual]

getNumSubParts returns the number of seperate subparts each subpart has a continuous array of vertices and indices

Referenced by ATTRIBUTE_ALIGNED16(), btGenerateInternalEdgeInfo(), btGImpactMeshShape::buildMeshParts(), InternalProcessAllTriangles(), and serialize().

virtual void btStridingMeshInterface::getPremadeAabb	(	btVector3 *	aabbMin,
		btVector3 *	aabbMax
	)		const `[inline, virtual]`

Definition at line 80 of file btStridingMeshInterface.h.

Referenced by btTriangleMeshShape::btTriangleMeshShape().

const btVector3& btStridingMeshInterface::getScaling ( ) const [inline]

Definition at line 86 of file btStridingMeshInterface.h.

References m_scaling.

Referenced by btGenerateInternalEdgeInfo(), btTriangleMeshShape::getLocalScaling(), btConvexTriangleMeshShape::getLocalScaling(), InternalProcessAllTriangles(), serialize(), and btGImpactMeshShapePart::TrimeshPrimitiveManager::TrimeshPrimitiveManager().

virtual bool btStridingMeshInterface::hasPremadeAabb ( ) const [inline, virtual]

Definition at line 74 of file btStridingMeshInterface.h.

Referenced by btTriangleMeshShape::btTriangleMeshShape().

void btStridingMeshInterface::InternalProcessAllTriangles	(	btInternalTriangleIndexCallback *	callback,
		const btVector3 &	aabbMin,
		const btVector3 &	aabbMax
	)		const `[virtual]`

if the number of parts is big, the performance might drop due to the innerloop switch on indextype

unlike that developers want to pass in double-precision meshes in single-precision Bullet build so disable this feature by default see patch http://code.google.com/p/bullet/issues/detail?id=213

Definition at line 25 of file btStridingMeshInterface.cpp.

References btAssert, getLockedReadOnlyVertexIndexBase(), getNumSubParts(), getScaling(), btInternalTriangleIndexCallback::internalProcessTriangleIndex(), PHY_DOUBLE, PHY_FLOAT, PHY_INTEGER, PHY_SHORT, PHY_UCHAR, and unLockReadOnlyVertexBase().

Referenced by btConvexTriangleMeshShape::batchedUnitVectorGetSupportingVertexWithoutMargin(), calculateAabbBruteForce(), btConvexTriangleMeshShape::calculatePrincipalAxisTransform(), btCollisionWorld::debugDrawObject(), btConvexTriangleMeshShape::localGetSupportingVertexWithoutMargin(), and btTriangleMeshShape::processAllTriangles().

virtual void btStridingMeshInterface::preallocateIndices ( int numindices ) [pure virtual]

virtual void btStridingMeshInterface::preallocateVertices ( int numverts ) [pure virtual]

const char * btStridingMeshInterface::serialize	(	void *	dataBuffer,
		btSerializer *	serializer
	)		const `[virtual]`

fills the dataBuffer and returns the struct name (and 0 on failure)

if the number of parts is big, the performance might drop due to the innerloop switch on indextype

Definition at line 217 of file btStridingMeshInterface.cpp.

References btSerializer::allocate(), BT_ARRAY_CODE, btAssert, btSerializer::finalizeChunk(), getLockedReadOnlyVertexIndexBase(), getNumSubParts(), getScaling(), btSerializer::getUniquePointer(), i, btMeshPartData::m_3indices16, btMeshPartData::m_3indices8, btVector3DoubleData::m_floats, btVector3FloatData::m_floats, btMeshPartData::m_indices16, btMeshPartData::m_indices32, btStridingMeshInterfaceData::m_meshPartsPtr, btStridingMeshInterfaceData::m_numMeshParts, btMeshPartData::m_numTriangles, btMeshPartData::m_numVertices, btChunk::m_oldPtr, m_scaling, btStridingMeshInterfaceData::m_scaling, btIntIndexData::m_value, btCharIndexTripletData::m_values, btShortIntIndexTripletData::m_values, btMeshPartData::m_vertices3d, btMeshPartData::m_vertices3f, PHY_DOUBLE, PHY_FLOAT, PHY_INTEGER, PHY_SHORT, PHY_UCHAR, and unLockReadOnlyVertexBase().

Referenced by ATTRIBUTE_ALIGNED16(), and btGImpactMeshShape::serialize().

virtual void btStridingMeshInterface::setPremadeAabb	(	const btVector3 &	aabbMin,
		const btVector3 &	aabbMax
	)		const `[inline, virtual]`

Definition at line 75 of file btStridingMeshInterface.h.

void btStridingMeshInterface::setScaling ( const btVector3 & scaling ) [inline]

Definition at line 89 of file btStridingMeshInterface.h.

References m_scaling.

Referenced by btConvexTriangleMeshShape::setLocalScaling(), and btTriangleMeshShape::setLocalScaling().

virtual void btStridingMeshInterface::unLockReadOnlyVertexBase ( int subpart ) const [pure virtual]

Referenced by GetHitTriangle(), InternalProcessAllTriangles(), serialize(), and btGImpactMeshShapePart::TrimeshPrimitiveManager::unlock().

virtual void btStridingMeshInterface::unLockVertexBase ( int subpart ) [pure virtual]

unLockVertexBase finishes the access to a subpart of the triangle mesh make a call to unLockVertexBase when the read and write access (using getLockedVertexIndexBase) is finished

Member Data Documentation

btVector3 btStridingMeshInterface::m_scaling [protected]

Definition at line 34 of file btStridingMeshInterface.h.

Referenced by getScaling(), serialize(), and setScaling().

The documentation for this class was generated from the following files:

btStridingMeshInterface Class Reference

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation