diff options
Diffstat (limited to 'extern/bullet2/src/BulletCollision/BroadphaseCollision/btSimpleBroadphase.cpp')
| -rw-r--r-- | extern/bullet2/src/BulletCollision/BroadphaseCollision/btSimpleBroadphase.cpp | 226 |
1 files changed, 152 insertions, 74 deletions
diff --git a/extern/bullet2/src/BulletCollision/BroadphaseCollision/btSimpleBroadphase.cpp b/extern/bullet2/src/BulletCollision/BroadphaseCollision/btSimpleBroadphase.cpp index 30bcbe0c5f1..a57952ffa06 100644 --- a/extern/bullet2/src/BulletCollision/BroadphaseCollision/btSimpleBroadphase.cpp +++ b/extern/bullet2/src/BulletCollision/BroadphaseCollision/btSimpleBroadphase.cpp @@ -14,83 +14,84 @@ subject to the following restrictions: */ #include "btSimpleBroadphase.h" -#include <BulletCollision/BroadphaseCollision/btDispatcher.h> -#include <BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h> +#include "BulletCollision/BroadphaseCollision/btDispatcher.h" +#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h" #include "LinearMath/btVector3.h" #include "LinearMath/btTransform.h" #include "LinearMath/btMatrix3x3.h" #include <new> +extern int gOverlappingPairs; void btSimpleBroadphase::validate() { - for (int i=0;i<m_numProxies;i++) + for (int i=0;i<m_numHandles;i++) { - for (int j=i+1;j<m_numProxies;j++) + for (int j=i+1;j<m_numHandles;j++) { - assert(m_pProxies[i] != m_pProxies[j]); + btAssert(&m_pHandles[i] != &m_pHandles[j]); } } } -btSimpleBroadphase::btSimpleBroadphase(int maxProxies) - :btOverlappingPairCache(), - m_firstFreeProxy(0), - m_numProxies(0), - m_maxProxies(maxProxies) +btSimpleBroadphase::btSimpleBroadphase(int maxProxies, btOverlappingPairCache* overlappingPairCache) + :m_pairCache(overlappingPairCache), + m_ownsPairCache(false), + m_invalidPair(0) { - m_proxies = new btSimpleBroadphaseProxy[maxProxies]; - m_freeProxies = new int[maxProxies]; - m_pProxies = new btSimpleBroadphaseProxy*[maxProxies]; + if (!overlappingPairCache) + { + void* mem = btAlignedAlloc(sizeof(btHashedOverlappingPairCache),16); + m_pairCache = new (mem)btHashedOverlappingPairCache(); + m_ownsPairCache = true; + } + + // allocate handles buffer and put all handles on free list + m_pHandlesRawPtr = btAlignedAlloc(sizeof(btSimpleBroadphaseProxy)*maxProxies,16); + m_pHandles = new(m_pHandlesRawPtr) btSimpleBroadphaseProxy[maxProxies]; + m_maxHandles = maxProxies; + m_numHandles = 0; + m_firstFreeHandle = 0; - int i; - for (i=0;i<m_maxProxies;i++) { - m_freeProxies[i] = i; + for (int i = m_firstFreeHandle; i < maxProxies; i++) + { + m_pHandles[i].SetNextFree(i + 1); + m_pHandles[i].m_uniqueId = i+2;//any UID will do, we just avoid too trivial values (0,1) for debugging purposes + } + m_pHandles[maxProxies - 1].SetNextFree(0); + } + } btSimpleBroadphase::~btSimpleBroadphase() { - delete[] m_proxies; - delete []m_freeProxies; - delete [] m_pProxies; + btAlignedFree(m_pHandlesRawPtr); - /*int i; - for (i=m_numProxies-1;i>=0;i--) + if (m_ownsPairCache) { - BP_Proxy* proxy = m_pProxies[i]; - destroyProxy(proxy); + m_pairCache->~btOverlappingPairCache(); + btAlignedFree(m_pairCache); } - */ } -btBroadphaseProxy* btSimpleBroadphase::createProxy( const btVector3& min, const btVector3& max,int shapeType,void* userPtr ,short int collisionFilterGroup,short int collisionFilterMask) +btBroadphaseProxy* btSimpleBroadphase::createProxy( const btVector3& aabbMin, const btVector3& aabbMax,int shapeType,void* userPtr ,short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* /*dispatcher*/,void* multiSapProxy) { - if (m_numProxies >= m_maxProxies) + if (m_numHandles >= m_maxHandles) { - assert(0); + btAssert(0); return 0; //should never happen, but don't let the game crash ;-) } - assert(min[0]<= max[0] && min[1]<= max[1] && min[2]<= max[2]); - - int freeIndex= m_freeProxies[m_firstFreeProxy]; - btSimpleBroadphaseProxy* proxy = new (&m_proxies[freeIndex])btSimpleBroadphaseProxy(min,max,shapeType,userPtr,collisionFilterGroup,collisionFilterMask); - m_firstFreeProxy++; - - btSimpleBroadphaseProxy* proxy1 = &m_proxies[0]; - - int index = int(proxy - proxy1); - btAssert(index == freeIndex); + assert(aabbMin[0]<= aabbMax[0] && aabbMin[1]<= aabbMax[1] && aabbMin[2]<= aabbMax[2]); - m_pProxies[m_numProxies] = proxy; - m_numProxies++; - //validate(); + int newHandleIndex = allocHandle(); + btSimpleBroadphaseProxy* proxy = new (&m_pHandles[newHandleIndex])btSimpleBroadphaseProxy(aabbMin,aabbMax,shapeType,userPtr,collisionFilterGroup,collisionFilterMask,multiSapProxy); return proxy; } @@ -124,34 +125,19 @@ protected: }; }; -void btSimpleBroadphase::destroyProxy(btBroadphaseProxy* proxyOrg) +void btSimpleBroadphase::destroyProxy(btBroadphaseProxy* proxyOrg,btDispatcher* dispatcher) { - int i; - btSimpleBroadphaseProxy* proxy0 = static_cast<btSimpleBroadphaseProxy*>(proxyOrg); - btSimpleBroadphaseProxy* proxy1 = &m_proxies[0]; - - int index = int(proxy0 - proxy1); - btAssert (index < m_maxProxies); - m_freeProxies[--m_firstFreeProxy] = index; + freeHandle(proxy0); + + m_pairCache->removeOverlappingPairsContainingProxy(proxyOrg,dispatcher); - removeOverlappingPairsContainingProxy(proxyOrg); - - for (i=0;i<m_numProxies;i++) - { - if (m_pProxies[i] == proxyOrg) - { - m_pProxies[i] = m_pProxies[m_numProxies-1]; - break; - } - } - m_numProxies--; //validate(); } -void btSimpleBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax) +void btSimpleBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* /*dispatcher*/) { btSimpleBroadphaseProxy* sbp = getSimpleProxyFromProxy(proxy); sbp->m_min = aabbMin; @@ -186,37 +172,129 @@ public: } }; -void btSimpleBroadphase::refreshOverlappingPairs() +void btSimpleBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher) { //first check for new overlapping pairs int i,j; - for (i=0;i<m_numProxies;i++) + if (m_numHandles >= 0) { - btBroadphaseProxy* proxy0 = m_pProxies[i]; - for (j=i+1;j<m_numProxies;j++) + + for (i=0;i<m_numHandles;i++) { - btBroadphaseProxy* proxy1 = m_pProxies[j]; - btSimpleBroadphaseProxy* p0 = getSimpleProxyFromProxy(proxy0); - btSimpleBroadphaseProxy* p1 = getSimpleProxyFromProxy(proxy1); + btSimpleBroadphaseProxy* proxy0 = &m_pHandles[i]; - if (aabbOverlap(p0,p1)) + for (j=i+1;j<m_numHandles;j++) { - if ( !findPair(proxy0,proxy1)) + btSimpleBroadphaseProxy* proxy1 = &m_pHandles[j]; + btAssert(proxy0 != proxy1); + + btSimpleBroadphaseProxy* p0 = getSimpleProxyFromProxy(proxy0); + btSimpleBroadphaseProxy* p1 = getSimpleProxyFromProxy(proxy1); + + if (aabbOverlap(p0,p1)) + { + if ( !m_pairCache->findPair(proxy0,proxy1)) + { + m_pairCache->addOverlappingPair(proxy0,proxy1); + } + } else { - addOverlappingPair(proxy0,proxy1); + if (!m_pairCache->hasDeferredRemoval()) + { + if ( m_pairCache->findPair(proxy0,proxy1)) + { + m_pairCache->removeOverlappingPair(proxy0,proxy1,dispatcher); + } + } } } - } - } + if (m_ownsPairCache && m_pairCache->hasDeferredRemoval()) + { + + btBroadphasePairArray& overlappingPairArray = m_pairCache->getOverlappingPairArray(); - CheckOverlapCallback checkOverlap; + //perform a sort, to find duplicates and to sort 'invalid' pairs to the end + overlappingPairArray.quickSort(btBroadphasePairSortPredicate()); - processAllOverlappingPairs(&checkOverlap); + overlappingPairArray.resize(overlappingPairArray.size() - m_invalidPair); + m_invalidPair = 0; + btBroadphasePair previousPair; + previousPair.m_pProxy0 = 0; + previousPair.m_pProxy1 = 0; + previousPair.m_algorithm = 0; + + + for (i=0;i<overlappingPairArray.size();i++) + { + + btBroadphasePair& pair = overlappingPairArray[i]; + + bool isDuplicate = (pair == previousPair); + + previousPair = pair; + + bool needsRemoval = false; + + if (!isDuplicate) + { + bool hasOverlap = testAabbOverlap(pair.m_pProxy0,pair.m_pProxy1); + + if (hasOverlap) + { + needsRemoval = false;//callback->processOverlap(pair); + } else + { + needsRemoval = true; + } + } else + { + //remove duplicate + needsRemoval = true; + //should have no algorithm + btAssert(!pair.m_algorithm); + } + + if (needsRemoval) + { + m_pairCache->cleanOverlappingPair(pair,dispatcher); + + // m_overlappingPairArray.swap(i,m_overlappingPairArray.size()-1); + // m_overlappingPairArray.pop_back(); + pair.m_pProxy0 = 0; + pair.m_pProxy1 = 0; + m_invalidPair++; + gOverlappingPairs--; + } + + } + + ///if you don't like to skip the invalid pairs in the array, execute following code: +#define CLEAN_INVALID_PAIRS 1 +#ifdef CLEAN_INVALID_PAIRS + + //perform a sort, to sort 'invalid' pairs to the end + overlappingPairArray.quickSort(btBroadphasePairSortPredicate()); + + overlappingPairArray.resize(overlappingPairArray.size() - m_invalidPair); + m_invalidPair = 0; +#endif//CLEAN_INVALID_PAIRS + + } + } +} + + +bool btSimpleBroadphase::testAabbOverlap(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1) +{ + btSimpleBroadphaseProxy* p0 = getSimpleProxyFromProxy(proxy0); + btSimpleBroadphaseProxy* p1 = getSimpleProxyFromProxy(proxy1); + return aabbOverlap(p0,p1); } + |