Bullet Collision Detection & Physics Library: btTriangleIndexVertexArray.cpp Source File

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btTriangleIndexVertexArray.cpp
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1/*
2Bullet Continuous Collision Detection and Physics Library
3Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
4
5This software is provided 'as-is', without any express or implied warranty.
6In no event will the authors be held liable for any damages arising from the use of this software.
7Permission is granted to anyone to use this software for any purpose,
8including commercial applications, and to alter it and redistribute it freely,
9subject to the following restrictions:
10
111. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
122. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
133. This notice may not be removed or altered from any source distribution.
14*/
15
16#include "btTriangleIndexVertexArray.h"
17
18 btTriangleIndexVertexArray::btTriangleIndexVertexArray(int numTriangles, int* triangleIndexBase, int triangleIndexStride, int numVertices, btScalar* vertexBase, int vertexStride)
19 : m_hasAabb(0)
20{
21 btIndexedMesh mesh;
22
23 mesh.m_numTriangles = numTriangles;
24 mesh.m_triangleIndexBase = (const unsigned char*)triangleIndexBase;
25 mesh.m_triangleIndexStride = triangleIndexStride;
26 mesh.m_numVertices = numVertices;
27 mesh.m_vertexBase = (const unsigned char*)vertexBase;
28 mesh.m_vertexStride = vertexStride;
29
30 addIndexedMesh(mesh);
31}
32
33btTriangleIndexVertexArray::~btTriangleIndexVertexArray()
34{
35}
36
37 void btTriangleIndexVertexArray::getLockedVertexIndexBase(unsigned char** vertexbase, int& numverts, PHY_ScalarType& type, int& vertexStride, unsigned char** indexbase, int& indexstride, int& numfaces, PHY_ScalarType& indicestype, int subpart)
38{
39 btAssert(subpart < getNumSubParts());
40
41 btIndexedMesh& mesh = m_indexedMeshes[subpart];
42
43 numverts = mesh.m_numVertices;
44 (*vertexbase) = (unsigned char*)mesh.m_vertexBase;
45
46 type = mesh.m_vertexType;
47
48 vertexStride = mesh.m_vertexStride;
49
50 numfaces = mesh.m_numTriangles;
51
52 (*indexbase) = (unsigned char*)mesh.m_triangleIndexBase;
53 indexstride = mesh.m_triangleIndexStride;
54 indicestype = mesh.m_indexType;
55}
56
57 void btTriangleIndexVertexArray::getLockedReadOnlyVertexIndexBase(const unsigned char** vertexbase, int& numverts, PHY_ScalarType& type, int& vertexStride, const unsigned char** indexbase, int& indexstride, int& numfaces, PHY_ScalarType& indicestype, int subpart) const
58{
59 const btIndexedMesh& mesh = m_indexedMeshes[subpart];
60
61 numverts = mesh.m_numVertices;
62 (*vertexbase) = (const unsigned char*)mesh.m_vertexBase;
63
64 type = mesh.m_vertexType;
65
66 vertexStride = mesh.m_vertexStride;
67
68 numfaces = mesh.m_numTriangles;
69 (*indexbase) = (const unsigned char*)mesh.m_triangleIndexBase;
70 indexstride = mesh.m_triangleIndexStride;
71 indicestype = mesh.m_indexType;
72}
73
74 bool btTriangleIndexVertexArray::hasPremadeAabb() const
75{
76 return (m_hasAabb == 1);
77}
78
79 void btTriangleIndexVertexArray::setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax) const
80{
81 m_aabbMin = aabbMin;
82 m_aabbMax = aabbMax;
83 m_hasAabb = 1; // this is intentionally an int see notes in header
84}
85
86 void btTriangleIndexVertexArray::getPremadeAabb(btVector3* aabbMin, btVector3* aabbMax) const
87{
88 *aabbMin = m_aabbMin;
89 *aabbMax = m_aabbMax;
90}
PHY_ScalarType
PHY_ScalarType
PHY_ScalarType enumerates possible scalar types.
Definition: btConcaveShape.h:26
btScalar
float btScalar
The btScalar type abstracts floating point numbers, to easily switch between double and single floati...
Definition: btScalar.h:314
btAssert
#define btAssert(x)
Definition: btScalar.h:153
btTriangleIndexVertexArray.h
btTriangleIndexVertexArray::addIndexedMesh
void addIndexedMesh(const btIndexedMesh &mesh, PHY_ScalarType indexType=PHY_INTEGER)
Definition: btTriangleIndexVertexArray.h:87
btTriangleIndexVertexArray::m_hasAabb
int m_hasAabb
Definition: btTriangleIndexVertexArray.h:71
btTriangleIndexVertexArray::m_aabbMax
btVector3 m_aabbMax
Definition: btTriangleIndexVertexArray.h:73
btTriangleIndexVertexArray::getNumSubParts
virtual int getNumSubParts() const
getNumSubParts returns the number of separate subparts each subpart has a continuous array of vertice...
Definition: btTriangleIndexVertexArray.h:105
btTriangleIndexVertexArray::m_aabbMin
btVector3 m_aabbMin
Definition: btTriangleIndexVertexArray.h:72
btTriangleIndexVertexArray::setPremadeAabb
virtual void setPremadeAabb(const btVector3 &aabbMin, const btVector3 &aabbMax) const
Definition: btTriangleIndexVertexArray.cpp:79
btTriangleIndexVertexArray::~btTriangleIndexVertexArray
virtual ~btTriangleIndexVertexArray()
Definition: btTriangleIndexVertexArray.cpp:33
btTriangleIndexVertexArray::hasPremadeAabb
virtual bool hasPremadeAabb() const
Definition: btTriangleIndexVertexArray.cpp:74
btTriangleIndexVertexArray::m_indexedMeshes
IndexedMeshArray m_indexedMeshes
Definition: btTriangleIndexVertexArray.h:69
btTriangleIndexVertexArray::getLockedReadOnlyVertexIndexBase
virtual void getLockedReadOnlyVertexIndexBase(const unsigned char **vertexbase, int &numverts, PHY_ScalarType &type, int &vertexStride, const unsigned char **indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0) const
Definition: btTriangleIndexVertexArray.cpp:57
btTriangleIndexVertexArray::getPremadeAabb
virtual void getPremadeAabb(btVector3 *aabbMin, btVector3 *aabbMax) const
Definition: btTriangleIndexVertexArray.cpp:86
btTriangleIndexVertexArray::btTriangleIndexVertexArray
btTriangleIndexVertexArray()
Definition: btTriangleIndexVertexArray.h:78
btTriangleIndexVertexArray::getLockedVertexIndexBase
virtual void getLockedVertexIndexBase(unsigned char **vertexbase, int &numverts, PHY_ScalarType &type, int &vertexStride, unsigned char **indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0)
get read and write access to a subpart of a triangle mesh this subpart has a continuous array of vert...
Definition: btTriangleIndexVertexArray.cpp:37
btVector3
btVector3 can be used to represent 3D points and vectors.
Definition: btVector3.h:82
btIndexedMesh
The btIndexedMesh indexes a single vertex and index array.
Definition: btTriangleIndexVertexArray.h:27
btIndexedMesh::m_indexType
PHY_ScalarType m_indexType
Definition: btTriangleIndexVertexArray.h:41
btIndexedMesh::m_numVertices
int m_numVertices
Definition: btTriangleIndexVertexArray.h:34
btIndexedMesh::m_numTriangles
int m_numTriangles
Definition: btTriangleIndexVertexArray.h:30
btIndexedMesh::m_triangleIndexStride
int m_triangleIndexStride
Definition: btTriangleIndexVertexArray.h:33
btIndexedMesh::m_vertexBase
const unsigned char * m_vertexBase
Definition: btTriangleIndexVertexArray.h:35
btIndexedMesh::m_vertexStride
int m_vertexStride
Definition: btTriangleIndexVertexArray.h:37
btIndexedMesh::m_triangleIndexBase
const unsigned char * m_triangleIndexBase
Definition: btTriangleIndexVertexArray.h:31
btIndexedMesh::m_vertexType
PHY_ScalarType m_vertexType
Definition: btTriangleIndexVertexArray.h:46