129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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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.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef PARALLEL_ISLAND_DISPATCHER_H
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#define PARALLEL_ISLAND_DISPATCHER_H
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#include "BulletCollision/BroadphaseCollision/btDispatcher.h"
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#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h"
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#include "BulletCollision/CollisionDispatch/btUnionFind.h"
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#include "BulletCollision/CollisionDispatch/btManifoldResult.h"
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#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h"
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#include <vector>
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class IDebugDraw;
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#include "BulletCollision/CollisionDispatch/btCollisionCreateFunc.h"
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///ParallelIslandDispatcher dispatches entire simulation islands in parallel.
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///For both collision detection and constraint solving.
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///This development heads toward multi-core, CELL SPU and GPU approach
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class ParallelIslandDispatcher : public Dispatcher
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{
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std::vector<PersistentManifold*> m_manifoldsPtr;
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UnionFind m_unionFind;
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bool m_useIslands;
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ManifoldResult m_defaultManifoldResult;
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CollisionAlgorithmCreateFunc* m_doubleDispatch[MAX_BROADPHASE_COLLISION_TYPES][MAX_BROADPHASE_COLLISION_TYPES];
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public:
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UnionFind& GetUnionFind() { return m_unionFind;}
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struct IslandCallback
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{
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virtual ~IslandCallback() {};
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virtual void ProcessIsland(PersistentManifold** manifolds,int numManifolds) = 0;
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};
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int GetNumManifolds() const
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{
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return m_manifoldsPtr.size();
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}
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PersistentManifold* GetManifoldByIndexInternal(int index)
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{
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return m_manifoldsPtr[index];
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}
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const PersistentManifold* GetManifoldByIndexInternal(int index) const
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{
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return m_manifoldsPtr[index];
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}
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void InitUnionFind(int n)
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{
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if (m_useIslands)
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m_unionFind.reset(n);
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}
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void FindUnions();
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int m_count;
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ParallelIslandDispatcher ();
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virtual ~ParallelIslandDispatcher() {};
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virtual PersistentManifold* GetNewManifold(void* b0,void* b1);
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virtual void ReleaseManifold(PersistentManifold* manifold);
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virtual void BuildAndProcessIslands(CollisionObjectArray& collisionObjects, IslandCallback* callback);
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///allows the user to get contact point callbacks
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virtual ManifoldResult* GetNewManifoldResult(CollisionObject* obj0,CollisionObject* obj1,PersistentManifold* manifold);
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///allows the user to get contact point callbacks
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virtual void ReleaseManifoldResult(ManifoldResult*);
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virtual void ClearManifold(PersistentManifold* manifold);
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CollisionAlgorithm* FindAlgorithm(BroadphaseProxy& proxy0,BroadphaseProxy& proxy1)
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{
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CollisionAlgorithm* algo = InternalFindAlgorithm(proxy0,proxy1);
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return algo;
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}
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CollisionAlgorithm* InternalFindAlgorithm(BroadphaseProxy& proxy0,BroadphaseProxy& proxy1);
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virtual bool NeedsCollision(BroadphaseProxy& proxy0,BroadphaseProxy& proxy1);
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virtual bool NeedsResponse(const CollisionObject& colObj0,const CollisionObject& colObj1);
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virtual int GetUniqueId() { return RIGIDBODY_DISPATCHER;}
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virtual void DispatchAllCollisionPairs(OverlappingPairCache* pairCache,DispatcherInfo& dispatchInfo);
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};
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#endif //PARALLEL_ISLAND_DISPATCHER_H
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