BGE bug #17858 fixed: [SHOWSTOPPER] BGE Memory leak. The memory leak has been identi...
[blender.git] / extern / bullet2 / src / BulletSoftBody / btSoftBodyRigidBodyCollisionConfiguration.cpp
1 /*
2 Bullet Continuous Collision Detection and Physics Library
3 Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
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 #include "btSoftBodyRigidBodyCollisionConfiguration.h"
17 #include "btSoftRigidCollisionAlgorithm.h"
18 #include "btSoftBodyConcaveCollisionAlgorithm.h"
19 #include "btSoftSoftCollisionAlgorithm.h"
20
21 #include "LinearMath/btPoolAllocator.h"
22
23 #define ENABLE_SOFTBODY_CONCAVE_COLLISIONS 1
24
25 btSoftBodyRigidBodyCollisionConfiguration::btSoftBodyRigidBodyCollisionConfiguration(const btDefaultCollisionConstructionInfo& constructionInfo)
26 :btDefaultCollisionConfiguration(constructionInfo)
27 {
28         void* mem;
29
30         mem = btAlignedAlloc(sizeof(btSoftSoftCollisionAlgorithm::CreateFunc),16);
31         m_softSoftCreateFunc = new(mem) btSoftSoftCollisionAlgorithm::CreateFunc;
32         
33         mem = btAlignedAlloc(sizeof(btSoftRigidCollisionAlgorithm::CreateFunc),16);
34         m_softRigidConvexCreateFunc = new(mem) btSoftRigidCollisionAlgorithm::CreateFunc;
35         
36         mem = btAlignedAlloc(sizeof(btSoftRigidCollisionAlgorithm::CreateFunc),16);
37         m_swappedSoftRigidConvexCreateFunc = new(mem) btSoftRigidCollisionAlgorithm::CreateFunc;
38         m_swappedSoftRigidConvexCreateFunc->m_swapped=true;
39
40 #ifdef ENABLE_SOFTBODY_CONCAVE_COLLISIONS
41         mem = btAlignedAlloc(sizeof(btSoftBodyConcaveCollisionAlgorithm::CreateFunc),16);
42         m_softRigidConcaveCreateFunc = new(mem) btSoftBodyConcaveCollisionAlgorithm::CreateFunc;
43         
44         mem = btAlignedAlloc(sizeof(btSoftBodyConcaveCollisionAlgorithm::CreateFunc),16);
45         m_swappedSoftRigidConcaveCreateFunc = new(mem) btSoftBodyConcaveCollisionAlgorithm::SwappedCreateFunc;
46         m_swappedSoftRigidConcaveCreateFunc->m_swapped=true;
47 #endif
48
49         //replace pool by a new one, with potential larger size
50         
51         if (m_ownsCollisionAlgorithmPool && m_collisionAlgorithmPool)
52         {
53                 int curElemSize = m_collisionAlgorithmPool->getElementSize();
54                 ///calculate maximum element size, big enough to fit any collision algorithm in the memory pool
55                 
56                 
57                 int maxSize0 = sizeof(btSoftSoftCollisionAlgorithm);
58                 int maxSize1 = sizeof(btSoftRigidCollisionAlgorithm);
59                 int maxSize2 = sizeof(btSoftBodyConcaveCollisionAlgorithm);
60
61                 int     collisionAlgorithmMaxElementSize = btMax(maxSize0,maxSize1);
62                 collisionAlgorithmMaxElementSize = btMax(collisionAlgorithmMaxElementSize,maxSize2);
63                 if (collisionAlgorithmMaxElementSize > curElemSize)
64                 {
65                         m_collisionAlgorithmPool->~btPoolAllocator();
66                         btAlignedFree(m_collisionAlgorithmPool);
67                         void* mem = btAlignedAlloc(sizeof(btPoolAllocator),16);
68                         m_collisionAlgorithmPool = new(mem) btPoolAllocator(collisionAlgorithmMaxElementSize,constructionInfo.m_defaultMaxCollisionAlgorithmPoolSize);
69                 }
70         }
71
72
73
74
75 }
76
77 btSoftBodyRigidBodyCollisionConfiguration::~btSoftBodyRigidBodyCollisionConfiguration()
78 {
79         m_softSoftCreateFunc->~btCollisionAlgorithmCreateFunc();
80         btAlignedFree(  m_softSoftCreateFunc);
81
82         m_softRigidConvexCreateFunc->~btCollisionAlgorithmCreateFunc();
83         btAlignedFree(  m_softRigidConvexCreateFunc);
84
85         m_swappedSoftRigidConvexCreateFunc->~btCollisionAlgorithmCreateFunc();
86         btAlignedFree(  m_swappedSoftRigidConvexCreateFunc);
87
88 #ifdef ENABLE_SOFTBODY_CONCAVE_COLLISIONS
89         m_softRigidConcaveCreateFunc->~btCollisionAlgorithmCreateFunc();
90         btAlignedFree(  m_softRigidConcaveCreateFunc);
91
92         m_swappedSoftRigidConcaveCreateFunc->~btCollisionAlgorithmCreateFunc();
93         btAlignedFree(  m_swappedSoftRigidConcaveCreateFunc);
94 #endif
95 }
96         
97 ///creation of soft-soft and soft-rigid, and otherwise fallback to base class implementation
98 btCollisionAlgorithmCreateFunc* btSoftBodyRigidBodyCollisionConfiguration::getCollisionAlgorithmCreateFunc(int proxyType0,int proxyType1)
99 {
100
101         ///try to handle the softbody interactions first
102
103         if ((proxyType0 == SOFTBODY_SHAPE_PROXYTYPE  ) && (proxyType1==SOFTBODY_SHAPE_PROXYTYPE))
104         {
105                 return  m_softSoftCreateFunc;
106         }
107
108         ///softbody versus convex
109         if (proxyType0 == SOFTBODY_SHAPE_PROXYTYPE  && btBroadphaseProxy::isConvex(proxyType1))
110         {
111                 return  m_softRigidConvexCreateFunc;
112         }
113
114         ///convex versus soft body
115         if (btBroadphaseProxy::isConvex(proxyType0) && proxyType1 == SOFTBODY_SHAPE_PROXYTYPE )
116         {
117                 return  m_swappedSoftRigidConvexCreateFunc;
118         }
119
120 #ifdef ENABLE_SOFTBODY_CONCAVE_COLLISIONS
121         ///softbody versus convex
122         if (proxyType0 == SOFTBODY_SHAPE_PROXYTYPE  && btBroadphaseProxy::isConcave(proxyType1))
123         {
124                 return  m_softRigidConcaveCreateFunc;
125         }
126
127         ///convex versus soft body
128         if (btBroadphaseProxy::isConcave(proxyType0) && proxyType1 == SOFTBODY_SHAPE_PROXYTYPE )
129         {
130                 return  m_swappedSoftRigidConcaveCreateFunc;
131         }
132 #endif
133
134         ///fallback to the regular rigid collision shape
135         return btDefaultCollisionConfiguration::getCollisionAlgorithmCreateFunc(proxyType0,proxyType1);
136 }