diff options
Diffstat (limited to 'extern/bullet2/BulletMultiThreaded/btGpu3DGridBroadphase.cpp')
| -rw-r--r-- | extern/bullet2/BulletMultiThreaded/btGpu3DGridBroadphase.cpp | 590 |
1 files changed, 0 insertions, 590 deletions
diff --git a/extern/bullet2/BulletMultiThreaded/btGpu3DGridBroadphase.cpp b/extern/bullet2/BulletMultiThreaded/btGpu3DGridBroadphase.cpp deleted file mode 100644 index 84a5e59f0af..00000000000 --- a/extern/bullet2/BulletMultiThreaded/btGpu3DGridBroadphase.cpp +++ /dev/null @@ -1,590 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org -Copyright (C) 2006, 2009 Sony Computer Entertainment Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -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. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///The 3 following lines include the CPU implementation of the kernels, keep them in this order. -#include "BulletMultiThreaded/btGpuDefines.h" -#include "BulletMultiThreaded/btGpuUtilsSharedDefs.h" -#include "BulletMultiThreaded/btGpuUtilsSharedCode.h" - - - -#include "LinearMath/btAlignedAllocator.h" -#include "LinearMath/btQuickprof.h" -#include "BulletCollision/BroadphaseCollision/btOverlappingPairCache.h" - - - -#include "btGpuDefines.h" -#include "btGpuUtilsSharedDefs.h" - -#include "btGpu3DGridBroadphaseSharedDefs.h" - -#include "btGpu3DGridBroadphase.h" -#include <string.h> //for memset - - -#include <stdio.h> - - - -static bt3DGridBroadphaseParams s3DGridBroadphaseParams; - - - -btGpu3DGridBroadphase::btGpu3DGridBroadphase( const btVector3& worldAabbMin,const btVector3& worldAabbMax, - int gridSizeX, int gridSizeY, int gridSizeZ, - int maxSmallProxies, int maxLargeProxies, int maxPairsPerBody, - int maxBodiesPerCell, - btScalar cellFactorAABB) : - btSimpleBroadphase(maxSmallProxies, -// new (btAlignedAlloc(sizeof(btSortedOverlappingPairCache),16)) btSortedOverlappingPairCache), - new (btAlignedAlloc(sizeof(btHashedOverlappingPairCache),16)) btHashedOverlappingPairCache), - m_bInitialized(false), - m_numBodies(0) -{ - _initialize(worldAabbMin, worldAabbMax, gridSizeX, gridSizeY, gridSizeZ, - maxSmallProxies, maxLargeProxies, maxPairsPerBody, - maxBodiesPerCell, cellFactorAABB); -} - - - -btGpu3DGridBroadphase::btGpu3DGridBroadphase( btOverlappingPairCache* overlappingPairCache, - const btVector3& worldAabbMin,const btVector3& worldAabbMax, - int gridSizeX, int gridSizeY, int gridSizeZ, - int maxSmallProxies, int maxLargeProxies, int maxPairsPerBody, - int maxBodiesPerCell, - btScalar cellFactorAABB) : - btSimpleBroadphase(maxSmallProxies, overlappingPairCache), - m_bInitialized(false), - m_numBodies(0) -{ - _initialize(worldAabbMin, worldAabbMax, gridSizeX, gridSizeY, gridSizeZ, - maxSmallProxies, maxLargeProxies, maxPairsPerBody, - maxBodiesPerCell, cellFactorAABB); -} - - - -btGpu3DGridBroadphase::~btGpu3DGridBroadphase() -{ - //btSimpleBroadphase will free memory of btSortedOverlappingPairCache, because m_ownsPairCache - assert(m_bInitialized); - _finalize(); -} - - - -void btGpu3DGridBroadphase::_initialize( const btVector3& worldAabbMin,const btVector3& worldAabbMax, - int gridSizeX, int gridSizeY, int gridSizeZ, - int maxSmallProxies, int maxLargeProxies, int maxPairsPerBody, - int maxBodiesPerCell, - btScalar cellFactorAABB) -{ - // set various paramerers - m_ownsPairCache = true; - m_params.m_gridSizeX = gridSizeX; - m_params.m_gridSizeY = gridSizeY; - m_params.m_gridSizeZ = gridSizeZ; - m_params.m_numCells = m_params.m_gridSizeX * m_params.m_gridSizeY * m_params.m_gridSizeZ; - btVector3 w_org = worldAabbMin; - m_params.m_worldOriginX = w_org.getX(); - m_params.m_worldOriginY = w_org.getY(); - m_params.m_worldOriginZ = w_org.getZ(); - btVector3 w_size = worldAabbMax - worldAabbMin; - m_params.m_cellSizeX = w_size.getX() / m_params.m_gridSizeX; - m_params.m_cellSizeY = w_size.getY() / m_params.m_gridSizeY; - m_params.m_cellSizeZ = w_size.getZ() / m_params.m_gridSizeZ; - m_maxRadius = btMin(btMin(m_params.m_cellSizeX, m_params.m_cellSizeY), m_params.m_cellSizeZ); - m_maxRadius *= btScalar(0.5f); - m_params.m_numBodies = m_numBodies; - m_params.m_maxBodiesPerCell = maxBodiesPerCell; - - m_numLargeHandles = 0; - m_maxLargeHandles = maxLargeProxies; - - m_maxPairsPerBody = maxPairsPerBody; - - m_cellFactorAABB = cellFactorAABB; - - m_LastLargeHandleIndex = -1; - - assert(!m_bInitialized); - // allocate host storage - m_hBodiesHash = new unsigned int[m_maxHandles * 2]; - memset(m_hBodiesHash, 0x00, m_maxHandles*2*sizeof(unsigned int)); - - m_hCellStart = new unsigned int[m_params.m_numCells]; - memset(m_hCellStart, 0x00, m_params.m_numCells * sizeof(unsigned int)); - - m_hPairBuffStartCurr = new unsigned int[m_maxHandles * 2 + 2]; - // --------------- for now, init with m_maxPairsPerBody for each body - m_hPairBuffStartCurr[0] = 0; - m_hPairBuffStartCurr[1] = 0; - for(int i = 1; i <= m_maxHandles; i++) - { - m_hPairBuffStartCurr[i * 2] = m_hPairBuffStartCurr[(i-1) * 2] + m_maxPairsPerBody; - m_hPairBuffStartCurr[i * 2 + 1] = 0; - } - //---------------- - unsigned int numAABB = m_maxHandles + m_maxLargeHandles; - m_hAABB = new bt3DGrid3F1U[numAABB * 2]; // AABB Min & Max - - m_hPairBuff = new unsigned int[m_maxHandles * m_maxPairsPerBody]; - memset(m_hPairBuff, 0x00, m_maxHandles * m_maxPairsPerBody * sizeof(unsigned int)); // needed? - - m_hPairScan = new unsigned int[m_maxHandles + 1]; - - m_hPairOut = new unsigned int[m_maxHandles * m_maxPairsPerBody]; - -// large proxies - - // allocate handles buffer and put all handles on free list - m_pLargeHandlesRawPtr = btAlignedAlloc(sizeof(btSimpleBroadphaseProxy) * m_maxLargeHandles, 16); - m_pLargeHandles = new(m_pLargeHandlesRawPtr) btSimpleBroadphaseProxy[m_maxLargeHandles]; - m_firstFreeLargeHandle = 0; - { - for (int i = m_firstFreeLargeHandle; i < m_maxLargeHandles; i++) - { - m_pLargeHandles[i].SetNextFree(i + 1); - m_pLargeHandles[i].m_uniqueId = m_maxHandles+2+i; - } - m_pLargeHandles[m_maxLargeHandles - 1].SetNextFree(0); - } - -// debug data - m_numPairsAdded = 0; - m_numOverflows = 0; - - m_bInitialized = true; -} - - - -void btGpu3DGridBroadphase::_finalize() -{ - assert(m_bInitialized); - delete [] m_hBodiesHash; - delete [] m_hCellStart; - delete [] m_hPairBuffStartCurr; - delete [] m_hAABB; - delete [] m_hPairBuff; - delete [] m_hPairScan; - delete [] m_hPairOut; - btAlignedFree(m_pLargeHandlesRawPtr); - m_bInitialized = false; -} - - - -void btGpu3DGridBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher) -{ - if(m_numHandles <= 0) - { - BT_PROFILE("addLarge2LargePairsToCache"); - addLarge2LargePairsToCache(dispatcher); - return; - } - // update constants - setParameters(&m_params); - // prepare AABB array - prepareAABB(); - // calculate hash - calcHashAABB(); - // sort bodies based on hash - sortHash(); - // find start of each cell - findCellStart(); - // findOverlappingPairs (small/small) - findOverlappingPairs(); - // findOverlappingPairs (small/large) - findPairsLarge(); - // add pairs to CPU cache - computePairCacheChanges(); - scanOverlappingPairBuff(); - squeezeOverlappingPairBuff(); - addPairsToCache(dispatcher); - // find and add large/large pairs to CPU cache - addLarge2LargePairsToCache(dispatcher); - return; -} - - - -void btGpu3DGridBroadphase::addPairsToCache(btDispatcher* dispatcher) -{ - m_numPairsAdded = 0; - m_numPairsRemoved = 0; - for(int i = 0; i < m_numHandles; i++) - { - unsigned int num = m_hPairScan[i+1] - m_hPairScan[i]; - if(!num) - { - continue; - } - unsigned int* pInp = m_hPairOut + m_hPairScan[i]; - unsigned int index0 = m_hAABB[i * 2].uw; - btSimpleBroadphaseProxy* proxy0 = &m_pHandles[index0]; - for(unsigned int j = 0; j < num; j++) - { - unsigned int indx1_s = pInp[j]; - unsigned int index1 = indx1_s & (~BT_3DGRID_PAIR_ANY_FLG); - btSimpleBroadphaseProxy* proxy1; - if(index1 < (unsigned int)m_maxHandles) - { - proxy1 = &m_pHandles[index1]; - } - else - { - index1 -= m_maxHandles; - btAssert((index1 >= 0) && (index1 < (unsigned int)m_maxLargeHandles)); - proxy1 = &m_pLargeHandles[index1]; - } - if(indx1_s & BT_3DGRID_PAIR_NEW_FLG) - { - m_pairCache->addOverlappingPair(proxy0,proxy1); - m_numPairsAdded++; - } - else - { - m_pairCache->removeOverlappingPair(proxy0,proxy1,dispatcher); - m_numPairsRemoved++; - } - } - } -} - - - -btBroadphaseProxy* btGpu3DGridBroadphase::createProxy( const btVector3& aabbMin, const btVector3& aabbMax,int shapeType,void* userPtr ,short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* dispatcher,void* multiSapProxy) -{ - btBroadphaseProxy* proxy; - bool bIsLarge = isLargeProxy(aabbMin, aabbMax); - if(bIsLarge) - { - if (m_numLargeHandles >= m_maxLargeHandles) - { - ///you have to increase the cell size, so 'large' proxies become 'small' proxies (fitting a cell) - btAssert(0); - return 0; //should never happen, but don't let the game crash ;-) - } - btAssert((aabbMin[0]<= aabbMax[0]) && (aabbMin[1]<= aabbMax[1]) && (aabbMin[2]<= aabbMax[2])); - int newHandleIndex = allocLargeHandle(); - proxy = new (&m_pLargeHandles[newHandleIndex])btSimpleBroadphaseProxy(aabbMin,aabbMax,shapeType,userPtr,collisionFilterGroup,collisionFilterMask,multiSapProxy); - } - else - { - proxy = btSimpleBroadphase::createProxy(aabbMin, aabbMax, shapeType, userPtr, collisionFilterGroup, collisionFilterMask, dispatcher, multiSapProxy); - } - return proxy; -} - - - -void btGpu3DGridBroadphase::destroyProxy(btBroadphaseProxy* proxy, btDispatcher* dispatcher) -{ - bool bIsLarge = isLargeProxy(proxy); - if(bIsLarge) - { - - btSimpleBroadphaseProxy* proxy0 = static_cast<btSimpleBroadphaseProxy*>(proxy); - freeLargeHandle(proxy0); - m_pairCache->removeOverlappingPairsContainingProxy(proxy,dispatcher); - } - else - { - btSimpleBroadphase::destroyProxy(proxy, dispatcher); - } - return; -} - - - -void btGpu3DGridBroadphase::resetPool(btDispatcher* dispatcher) -{ - m_hPairBuffStartCurr[0] = 0; - m_hPairBuffStartCurr[1] = 0; - for(int i = 1; i <= m_maxHandles; i++) - { - m_hPairBuffStartCurr[i * 2] = m_hPairBuffStartCurr[(i-1) * 2] + m_maxPairsPerBody; - m_hPairBuffStartCurr[i * 2 + 1] = 0; - } -} - - - -bool btGpu3DGridBroadphase::isLargeProxy(const btVector3& aabbMin, const btVector3& aabbMax) -{ - btVector3 diag = aabbMax - aabbMin; - - ///use the bounding sphere radius of this bounding box, to include rotation - btScalar radius = diag.length() * btScalar(0.5f); - radius *= m_cellFactorAABB; // user-defined factor - - return (radius > m_maxRadius); -} - - - -bool btGpu3DGridBroadphase::isLargeProxy(btBroadphaseProxy* proxy) -{ - return (proxy->getUid() >= (m_maxHandles+2)); -} - - - -void btGpu3DGridBroadphase::addLarge2LargePairsToCache(btDispatcher* dispatcher) -{ - int i,j; - if (m_numLargeHandles <= 0) - { - return; - } - int new_largest_index = -1; - for(i = 0; i <= m_LastLargeHandleIndex; i++) - { - btSimpleBroadphaseProxy* proxy0 = &m_pLargeHandles[i]; - if(!proxy0->m_clientObject) - { - continue; - } - new_largest_index = i; - for(j = i + 1; j <= m_LastLargeHandleIndex; j++) - { - btSimpleBroadphaseProxy* proxy1 = &m_pLargeHandles[j]; - if(!proxy1->m_clientObject) - { - continue; - } - 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 - { - if(m_pairCache->findPair(proxy0,proxy1)) - { - m_pairCache->removeOverlappingPair(proxy0,proxy1,dispatcher); - } - } - } - } - m_LastLargeHandleIndex = new_largest_index; - return; -} - - - -void btGpu3DGridBroadphase::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback) -{ - btSimpleBroadphase::rayTest(rayFrom, rayTo, rayCallback); - for (int i=0; i <= m_LastLargeHandleIndex; i++) - { - btSimpleBroadphaseProxy* proxy = &m_pLargeHandles[i]; - if(!proxy->m_clientObject) - { - continue; - } - rayCallback.process(proxy); - } -} - - - -// -// overrides for CPU version -// - - - -void btGpu3DGridBroadphase::prepareAABB() -{ - BT_PROFILE("prepareAABB"); - bt3DGrid3F1U* pBB = m_hAABB; - int i; - int new_largest_index = -1; - unsigned int num_small = 0; - for(i = 0; i <= m_LastHandleIndex; i++) - { - btSimpleBroadphaseProxy* proxy0 = &m_pHandles[i]; - if(!proxy0->m_clientObject) - { - continue; - } - new_largest_index = i; - pBB->fx = proxy0->m_aabbMin.getX(); - pBB->fy = proxy0->m_aabbMin.getY(); - pBB->fz = proxy0->m_aabbMin.getZ(); - pBB->uw = i; - pBB++; - pBB->fx = proxy0->m_aabbMax.getX(); - pBB->fy = proxy0->m_aabbMax.getY(); - pBB->fz = proxy0->m_aabbMax.getZ(); - pBB->uw = num_small; - pBB++; - num_small++; - } - m_LastHandleIndex = new_largest_index; - new_largest_index = -1; - unsigned int num_large = 0; - for(i = 0; i <= m_LastLargeHandleIndex; i++) - { - btSimpleBroadphaseProxy* proxy0 = &m_pLargeHandles[i]; - if(!proxy0->m_clientObject) - { - continue; - } - new_largest_index = i; - pBB->fx = proxy0->m_aabbMin.getX(); - pBB->fy = proxy0->m_aabbMin.getY(); - pBB->fz = proxy0->m_aabbMin.getZ(); - pBB->uw = i + m_maxHandles; - pBB++; - pBB->fx = proxy0->m_aabbMax.getX(); - pBB->fy = proxy0->m_aabbMax.getY(); - pBB->fz = proxy0->m_aabbMax.getZ(); - pBB->uw = num_large + m_maxHandles; - pBB++; - num_large++; - } - m_LastLargeHandleIndex = new_largest_index; - // paranoid checks - btAssert(num_small == m_numHandles); - btAssert(num_large == m_numLargeHandles); - return; -} - - - -void btGpu3DGridBroadphase::setParameters(bt3DGridBroadphaseParams* hostParams) -{ - s3DGridBroadphaseParams = *hostParams; - return; -} - - - -void btGpu3DGridBroadphase::calcHashAABB() -{ - BT_PROFILE("bt3DGrid_calcHashAABB"); - btGpu_calcHashAABB(m_hAABB, m_hBodiesHash, m_numHandles); - return; -} - - - -void btGpu3DGridBroadphase::sortHash() -{ - class bt3DGridHashKey - { - public: - unsigned int hash; - unsigned int index; - void quickSort(bt3DGridHashKey* pData, int lo, int hi) - { - int i=lo, j=hi; - bt3DGridHashKey x = pData[(lo+hi)/2]; - do - { - while(pData[i].hash > x.hash) i++; - while(x.hash > pData[j].hash) j--; - if(i <= j) - { - bt3DGridHashKey t = pData[i]; - pData[i] = pData[j]; - pData[j] = t; - i++; j--; - } - } while(i <= j); - if(lo < j) pData->quickSort(pData, lo, j); - if(i < hi) pData->quickSort(pData, i, hi); - } - }; - BT_PROFILE("bt3DGrid_sortHash"); - bt3DGridHashKey* pHash = (bt3DGridHashKey*)m_hBodiesHash; - pHash->quickSort(pHash, 0, m_numHandles - 1); - return; -} - - - -void btGpu3DGridBroadphase::findCellStart() -{ - BT_PROFILE("bt3DGrid_findCellStart"); - btGpu_findCellStart(m_hBodiesHash, m_hCellStart, m_numHandles, m_params.m_numCells); - return; -} - - - -void btGpu3DGridBroadphase::findOverlappingPairs() -{ - BT_PROFILE("bt3DGrid_findOverlappingPairs"); - btGpu_findOverlappingPairs(m_hAABB, m_hBodiesHash, m_hCellStart, m_hPairBuff, m_hPairBuffStartCurr, m_numHandles); - return; -} - - - -void btGpu3DGridBroadphase::findPairsLarge() -{ - BT_PROFILE("bt3DGrid_findPairsLarge"); - btGpu_findPairsLarge(m_hAABB, m_hBodiesHash, m_hCellStart, m_hPairBuff, m_hPairBuffStartCurr, m_numHandles, m_numLargeHandles); - return; -} - - - -void btGpu3DGridBroadphase::computePairCacheChanges() -{ - BT_PROFILE("bt3DGrid_computePairCacheChanges"); - btGpu_computePairCacheChanges(m_hPairBuff, m_hPairBuffStartCurr, m_hPairScan, m_hAABB, m_numHandles); - return; -} - - - -void btGpu3DGridBroadphase::scanOverlappingPairBuff() -{ - BT_PROFILE("bt3DGrid_scanOverlappingPairBuff"); - m_hPairScan[0] = 0; - for(int i = 1; i <= m_numHandles; i++) - { - unsigned int delta = m_hPairScan[i]; - m_hPairScan[i] = m_hPairScan[i-1] + delta; - } - return; -} - - - -void btGpu3DGridBroadphase::squeezeOverlappingPairBuff() -{ - BT_PROFILE("bt3DGrid_squeezeOverlappingPairBuff"); - btGpu_squeezeOverlappingPairBuff(m_hPairBuff, m_hPairBuffStartCurr, m_hPairScan, m_hPairOut, m_hAABB, m_numHandles); - return; -} - - - -#include "btGpu3DGridBroadphaseSharedCode.h" - - |