Bullet Collision Detection & Physics Library: btStridingMeshInterface.h Source File

Bullet Collision Detection & Physics Library

btStridingMeshInterface.h
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1 /*
2 Bullet Continuous Collision Detection and Physics Library
3 Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
4
5 This software is provided 'as-is', without any express or implied warranty.
6 In no event will the authors be held liable for any damages arising from the use of this software.
7 Permission is granted to anyone to use this software for any purpose,
8 including commercial applications, and to alter it and redistribute it freely,
9 subject to the following restrictions:
10
11 1. 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.
12 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
13 3. This notice may not be removed or altered from any source distribution.
14 */
15
16 #ifndef BT_STRIDING_MESHINTERFACE_H
17 #define BT_STRIDING_MESHINTERFACE_H
18
19 #include "LinearMath/btVector3.h"
20 #include "btTriangleCallback.h"
21 #include "btConcaveShape.h"
22
26 ATTRIBUTE_ALIGNED16(class)
27 btStridingMeshInterface
28 {
29 protected:
30 btVector3 m_scaling;
31
32 public:
33 BT_DECLARE_ALIGNED_ALLOCATOR();
34
35 btStridingMeshInterface() : m_scaling(btScalar(1.), btScalar(1.), btScalar(1.))
36 {
37 }
38
39 virtual ~btStridingMeshInterface();
40
41 virtual void InternalProcessAllTriangles(btInternalTriangleIndexCallback * callback, const btVector3& aabbMin, const btVector3& aabbMax) const;
42
44 void calculateAabbBruteForce(btVector3 & aabbMin, btVector3 & aabbMax);
45
51 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;
52
53 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;
54
57 virtual void unLockVertexBase(int subpart) = 0;
58
59 virtual void unLockReadOnlyVertexBase(int subpart) const = 0;
60
63 virtual int getNumSubParts() const = 0;
64
65 virtual void preallocateVertices(int numverts) = 0;
66 virtual void preallocateIndices(int numindices) = 0;
67
68 virtual bool hasPremadeAabb() const { return false; }
69 virtual void setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax) const
70 {
71 (void)aabbMin;
72 (void)aabbMax;
73 }
74 virtual void getPremadeAabb(btVector3 * aabbMin, btVector3 * aabbMax) const
75 {
76 (void)aabbMin;
77 (void)aabbMax;
78 }
79
80 const btVector3& getScaling() const
81 {
82 return m_scaling;
83 }
84 void setScaling(const btVector3& scaling)
85 {
86 m_scaling = scaling;
87 }
88
89 virtual int calculateSerializeBufferSize() const;
90
92 virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const;
93 };
94
95 struct btIntIndexData
96 {
97 int m_value;
98 };
99
100 struct btShortIntIndexData
101 {
102 short m_value;
103 char m_pad[2];
104 };
105
106 struct btShortIntIndexTripletData
107 {
108 short m_values[3];
109 char m_pad[2];
110 };
111
112 struct btCharIndexTripletData
113 {
114 unsigned char m_values[3];
115 char m_pad;
116 };
117
118 // clang-format off
119
121 struct btMeshPartData
122 {
123 btVector3FloatData *m_vertices3f;
124 btVector3DoubleData *m_vertices3d;
125
126 btIntIndexData *m_indices32;
127 btShortIntIndexTripletData *m_3indices16;
128 btCharIndexTripletData *m_3indices8;
129
130 btShortIntIndexData *m_indices16;//backwards compatibility
131
132 int m_numTriangles;//length of m_indices = m_numTriangles
133 int m_numVertices;
134 };
135
136
138 struct btStridingMeshInterfaceData
139 {
140 btMeshPartData *m_meshPartsPtr;
141 btVector3FloatData m_scaling;
142 int m_numMeshParts;
143 char m_padding[4];
144 };
145
146 // clang-format on
147
148 SIMD_FORCE_INLINE int btStridingMeshInterface::calculateSerializeBufferSize() const
149 {
150 return sizeof(btStridingMeshInterfaceData);
151 }
152
153 #endif //BT_STRIDING_MESHINTERFACE_H
btStridingMeshInterfaceData::m_padding
char m_padding[4]
Definition: btStridingMeshInterface.h:143
btStridingMeshInterfaceData::m_meshPartsPtr
btMeshPartData * m_meshPartsPtr
Definition: btStridingMeshInterface.h:140
btStridingMeshInterface::hasPremadeAabb
virtual bool hasPremadeAabb() const
Definition: btStridingMeshInterface.h:68
btIntIndexData::m_value
int m_value
Definition: btStridingMeshInterface.h:97
btVector3.h
btShortIntIndexData::m_value
short m_value
Definition: btStridingMeshInterface.h:102
btCharIndexTripletData
Definition: btStridingMeshInterface.h:112
SIMD_FORCE_INLINE
#define SIMD_FORCE_INLINE
Definition: btScalar.h:83
btStridingMeshInterface::setScaling
void setScaling(const btVector3 &scaling)
Definition: btStridingMeshInterface.h:84
btMeshPartData
do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 ...
Definition: btStridingMeshInterface.h:121
btMeshPartData::m_numVertices
int m_numVertices
Definition: btStridingMeshInterface.h:133
btMeshPartData::m_vertices3f
btVector3FloatData * m_vertices3f
Definition: btStridingMeshInterface.h:123
btInternalTriangleIndexCallback
Definition: btTriangleCallback.h:30
btMeshPartData::m_numTriangles
int m_numTriangles
Definition: btStridingMeshInterface.h:132
btShortIntIndexTripletData
Definition: btStridingMeshInterface.h:106
btSerializer
Definition: btSerializer.h:65
btShortIntIndexTripletData::m_values
short m_values[3]
Definition: btStridingMeshInterface.h:108
btConcaveShape.h
btMeshPartData::m_indices16
btShortIntIndexData * m_indices16
Definition: btStridingMeshInterface.h:130
btMeshPartData::m_3indices8
btCharIndexTripletData * m_3indices8
Definition: btStridingMeshInterface.h:128
btStridingMeshInterfaceData
do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 ...
Definition: btStridingMeshInterface.h:138
btMeshPartData::m_3indices16
btShortIntIndexTripletData * m_3indices16
Definition: btStridingMeshInterface.h:127
btTriangleCallback.h
btShortIntIndexData
Definition: btStridingMeshInterface.h:100
btStridingMeshInterface::btStridingMeshInterface
btStridingMeshInterface()
Definition: btStridingMeshInterface.h:35
btCharIndexTripletData::m_values
unsigned char m_values[3]
Definition: btStridingMeshInterface.h:114
btStridingMeshInterfaceData::m_numMeshParts
int m_numMeshParts
Definition: btStridingMeshInterface.h:142
btStridingMeshInterfaceData::m_scaling
btVector3FloatData m_scaling
Definition: btStridingMeshInterface.h:141
btVector3
btVector3 can be used to represent 3D points and vectors.
Definition: btVector3.h:80
ATTRIBUTE_ALIGNED16
#define ATTRIBUTE_ALIGNED16(a)
Definition: btScalar.h:84
btCharIndexTripletData::m_pad
char m_pad
Definition: btStridingMeshInterface.h:115
btStridingMeshInterface::getPremadeAabb
virtual void getPremadeAabb(btVector3 *aabbMin, btVector3 *aabbMax) const
Definition: btStridingMeshInterface.h:74
btShortIntIndexData::m_pad
char m_pad[2]
Definition: btStridingMeshInterface.h:103
btStridingMeshInterface
The btStridingMeshInterface is the interface class for high performance generic access to triangle me...
Definition: btStridingMeshInterface.h:26
btStridingMeshInterface::calculateSerializeBufferSize
virtual int calculateSerializeBufferSize() const
Definition: btStridingMeshInterface.h:148
btStridingMeshInterface::getScaling
const btVector3 & getScaling() const
Definition: btStridingMeshInterface.h:80
BT_DECLARE_ALIGNED_ALLOCATOR
#define BT_DECLARE_ALIGNED_ALLOCATOR()
Definition: btScalar.h:405
btIntIndexData
Definition: btStridingMeshInterface.h:95
btStridingMeshInterface::setPremadeAabb
virtual void setPremadeAabb(const btVector3 &aabbMin, const btVector3 &aabbMax) const
Definition: btStridingMeshInterface.h:69
btMeshPartData::m_indices32
btIntIndexData * m_indices32
Definition: btStridingMeshInterface.h:126
btVector3FloatData
Definition: btVector3.h:1281
btShortIntIndexTripletData::m_pad
char m_pad[2]
Definition: btStridingMeshInterface.h:109
btScalar
float btScalar
The btScalar type abstracts floating point numbers, to easily switch between double and single floati...
Definition: btScalar.h:294
btVector3DoubleData
Definition: btVector3.h:1286
PHY_ScalarType
PHY_ScalarType
PHY_ScalarType enumerates possible scalar types.
Definition: btConcaveShape.h:25
btStridingMeshInterface::m_scaling
btVector3 m_scaling
Definition: btStridingMeshInterface.h:30
btMeshPartData::m_vertices3d
btVector3DoubleData * m_vertices3d
Definition: btStridingMeshInterface.h:124