diff options
Diffstat (limited to 'extern/bullet2/src/BulletCollision/Gimpact/btGImpactShape.cpp')
| -rw-r--r-- | extern/bullet2/src/BulletCollision/Gimpact/btGImpactShape.cpp | 183 |
1 files changed, 112 insertions, 71 deletions
diff --git a/extern/bullet2/src/BulletCollision/Gimpact/btGImpactShape.cpp b/extern/bullet2/src/BulletCollision/Gimpact/btGImpactShape.cpp index ac8efdf3833..34c229a3aba 100644 --- a/extern/bullet2/src/BulletCollision/Gimpact/btGImpactShape.cpp +++ b/extern/bullet2/src/BulletCollision/Gimpact/btGImpactShape.cpp @@ -18,125 +18,169 @@ subject to the following restrictions: 3. This notice may not be removed or altered from any source distribution. */ - #include "btGImpactShape.h" #include "btGImpactMassUtil.h" +btGImpactMeshShapePart::btGImpactMeshShapePart(btStridingMeshInterface* meshInterface, int part) +{ + // moved from .h to .cpp because of conditional compilation + // (The setting of BT_THREADSAFE may differ between various cpp files, so it is best to + // avoid using it in h files) + m_primitive_manager.m_meshInterface = meshInterface; + m_primitive_manager.m_part = part; + m_box_set.setPrimitiveManager(&m_primitive_manager); +#if BT_THREADSAFE + // If threadsafe is requested, this object uses a different lock/unlock + // model with the btStridingMeshInterface -- lock once when the object is constructed + // and unlock once in the destructor. + // The other way of locking and unlocking for each collision check in the narrowphase + // is not threadsafe. Note these are not thread-locks, they are calls to the meshInterface's + // getLockedReadOnlyVertexIndexBase virtual function, which by default just returns a couple of + // pointers. In theory a client could override the lock function to do all sorts of + // things like reading data from GPU memory, or decompressing data on the fly, but such things + // do not seem all that likely or useful, given the performance cost. + m_primitive_manager.lock(); +#endif +} -#define CALC_EXACT_INERTIA 1 +btGImpactMeshShapePart::~btGImpactMeshShapePart() +{ + // moved from .h to .cpp because of conditional compilation +#if BT_THREADSAFE + m_primitive_manager.unlock(); +#endif +} +void btGImpactMeshShapePart::lockChildShapes() const +{ + // moved from .h to .cpp because of conditional compilation +#if !BT_THREADSAFE + // called in the narrowphase -- not threadsafe! + void* dummy = (void*)(m_box_set.getPrimitiveManager()); + TrimeshPrimitiveManager* dummymanager = static_cast<TrimeshPrimitiveManager*>(dummy); + dummymanager->lock(); +#endif +} -void btGImpactCompoundShape::calculateLocalInertia(btScalar mass,btVector3& inertia) const +void btGImpactMeshShapePart::unlockChildShapes() const +{ + // moved from .h to .cpp because of conditional compilation +#if !BT_THREADSAFE + // called in the narrowphase -- not threadsafe! + void* dummy = (void*)(m_box_set.getPrimitiveManager()); + TrimeshPrimitiveManager* dummymanager = static_cast<TrimeshPrimitiveManager*>(dummy); + dummymanager->unlock(); +#endif +} + +#define CALC_EXACT_INERTIA 1 + +void btGImpactCompoundShape::calculateLocalInertia(btScalar mass, btVector3& inertia) const { lockChildShapes(); #ifdef CALC_EXACT_INERTIA - inertia.setValue(0.f,0.f,0.f); + inertia.setValue(0.f, 0.f, 0.f); int i = this->getNumChildShapes(); - btScalar shapemass = mass/btScalar(i); + btScalar shapemass = mass / btScalar(i); - while(i--) + while (i--) { btVector3 temp_inertia; - m_childShapes[i]->calculateLocalInertia(shapemass,temp_inertia); - if(childrenHasTransform()) + m_childShapes[i]->calculateLocalInertia(shapemass, temp_inertia); + if (childrenHasTransform()) { - inertia = gim_inertia_add_transformed( inertia,temp_inertia,m_childTransforms[i]); + inertia = gim_inertia_add_transformed(inertia, temp_inertia, m_childTransforms[i]); } else { - inertia = gim_inertia_add_transformed( inertia,temp_inertia,btTransform::getIdentity()); + inertia = gim_inertia_add_transformed(inertia, temp_inertia, btTransform::getIdentity()); } - } #else // Calc box inertia - btScalar lx= m_localAABB.m_max[0] - m_localAABB.m_min[0]; - btScalar ly= m_localAABB.m_max[1] - m_localAABB.m_min[1]; - btScalar lz= m_localAABB.m_max[2] - m_localAABB.m_min[2]; - const btScalar x2 = lx*lx; - const btScalar y2 = ly*ly; - const btScalar z2 = lz*lz; + btScalar lx = m_localAABB.m_max[0] - m_localAABB.m_min[0]; + btScalar ly = m_localAABB.m_max[1] - m_localAABB.m_min[1]; + btScalar lz = m_localAABB.m_max[2] - m_localAABB.m_min[2]; + const btScalar x2 = lx * lx; + const btScalar y2 = ly * ly; + const btScalar z2 = lz * lz; const btScalar scaledmass = mass * btScalar(0.08333333); - inertia = scaledmass * (btVector3(y2+z2,x2+z2,x2+y2)); + inertia = scaledmass * (btVector3(y2 + z2, x2 + z2, x2 + y2)); #endif unlockChildShapes(); } - - -void btGImpactMeshShapePart::calculateLocalInertia(btScalar mass,btVector3& inertia) const +void btGImpactMeshShapePart::calculateLocalInertia(btScalar mass, btVector3& inertia) const { lockChildShapes(); - #ifdef CALC_EXACT_INERTIA - inertia.setValue(0.f,0.f,0.f); + inertia.setValue(0.f, 0.f, 0.f); int i = this->getVertexCount(); - btScalar pointmass = mass/btScalar(i); + btScalar pointmass = mass / btScalar(i); - while(i--) + while (i--) { btVector3 pointintertia; - this->getVertex(i,pointintertia); - pointintertia = gim_get_point_inertia(pointintertia,pointmass); - inertia+=pointintertia; + this->getVertex(i, pointintertia); + pointintertia = gim_get_point_inertia(pointintertia, pointmass); + inertia += pointintertia; } #else // Calc box inertia - btScalar lx= m_localAABB.m_max[0] - m_localAABB.m_min[0]; - btScalar ly= m_localAABB.m_max[1] - m_localAABB.m_min[1]; - btScalar lz= m_localAABB.m_max[2] - m_localAABB.m_min[2]; - const btScalar x2 = lx*lx; - const btScalar y2 = ly*ly; - const btScalar z2 = lz*lz; + btScalar lx = m_localAABB.m_max[0] - m_localAABB.m_min[0]; + btScalar ly = m_localAABB.m_max[1] - m_localAABB.m_min[1]; + btScalar lz = m_localAABB.m_max[2] - m_localAABB.m_min[2]; + const btScalar x2 = lx * lx; + const btScalar y2 = ly * ly; + const btScalar z2 = lz * lz; const btScalar scaledmass = mass * btScalar(0.08333333); - inertia = scaledmass * (btVector3(y2+z2,x2+z2,x2+y2)); + inertia = scaledmass * (btVector3(y2 + z2, x2 + z2, x2 + y2)); #endif unlockChildShapes(); } -void btGImpactMeshShape::calculateLocalInertia(btScalar mass,btVector3& inertia) const +void btGImpactMeshShape::calculateLocalInertia(btScalar mass, btVector3& inertia) const { - #ifdef CALC_EXACT_INERTIA - inertia.setValue(0.f,0.f,0.f); + inertia.setValue(0.f, 0.f, 0.f); int i = this->getMeshPartCount(); - btScalar partmass = mass/btScalar(i); + btScalar partmass = mass / btScalar(i); - while(i--) + while (i--) { btVector3 partinertia; - getMeshPart(i)->calculateLocalInertia(partmass,partinertia); - inertia+=partinertia; + getMeshPart(i)->calculateLocalInertia(partmass, partinertia); + inertia += partinertia; } #else // Calc box inertia - btScalar lx= m_localAABB.m_max[0] - m_localAABB.m_min[0]; - btScalar ly= m_localAABB.m_max[1] - m_localAABB.m_min[1]; - btScalar lz= m_localAABB.m_max[2] - m_localAABB.m_min[2]; - const btScalar x2 = lx*lx; - const btScalar y2 = ly*ly; - const btScalar z2 = lz*lz; + btScalar lx = m_localAABB.m_max[0] - m_localAABB.m_min[0]; + btScalar ly = m_localAABB.m_max[1] - m_localAABB.m_min[1]; + btScalar lz = m_localAABB.m_max[2] - m_localAABB.m_min[2]; + const btScalar x2 = lx * lx; + const btScalar y2 = ly * ly; + const btScalar z2 = lz * lz; const btScalar scaledmass = mass * btScalar(0.08333333); - inertia = scaledmass * (btVector3(y2+z2,x2+z2,x2+y2)); + inertia = scaledmass * (btVector3(y2 + z2, x2 + z2, x2 + y2)); #endif } @@ -145,7 +189,7 @@ void btGImpactMeshShape::rayTest(const btVector3& rayFrom, const btVector3& rayT { } -void btGImpactMeshShapePart::processAllTrianglesRay(btTriangleCallback* callback,const btVector3& rayFrom, const btVector3& rayTo) const +void btGImpactMeshShapePart::processAllTrianglesRay(btTriangleCallback* callback, const btVector3& rayFrom, const btVector3& rayTo) const { lockChildShapes(); @@ -154,7 +198,7 @@ void btGImpactMeshShapePart::processAllTrianglesRay(btTriangleCallback* callback rayDir.normalize(); m_box_set.rayQuery(rayDir, rayFrom, collided); - if(collided.size()==0) + if (collided.size() == 0) { unlockChildShapes(); return; @@ -163,15 +207,15 @@ void btGImpactMeshShapePart::processAllTrianglesRay(btTriangleCallback* callback int part = (int)getPart(); btPrimitiveTriangle triangle; int i = collided.size(); - while(i--) + while (i--) { - getPrimitiveTriangle(collided[i],triangle); - callback->processTriangle(triangle.m_vertices,part,collided[i]); + getPrimitiveTriangle(collided[i], triangle); + callback->processTriangle(triangle.m_vertices, part, collided[i]); } unlockChildShapes(); } -void btGImpactMeshShapePart::processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const +void btGImpactMeshShapePart::processAllTriangles(btTriangleCallback* callback, const btVector3& aabbMin, const btVector3& aabbMax) const { lockChildShapes(); btAABB box; @@ -179,9 +223,9 @@ void btGImpactMeshShapePart::processAllTriangles(btTriangleCallback* callback,co box.m_max = aabbMax; btAlignedObjectArray<int> collided; - m_box_set.boxQuery(box,collided); + m_box_set.boxQuery(box, collided); - if(collided.size()==0) + if (collided.size() == 0) { unlockChildShapes(); return; @@ -190,40 +234,38 @@ void btGImpactMeshShapePart::processAllTriangles(btTriangleCallback* callback,co int part = (int)getPart(); btPrimitiveTriangle triangle; int i = collided.size(); - while(i--) + while (i--) { - this->getPrimitiveTriangle(collided[i],triangle); - callback->processTriangle(triangle.m_vertices,part,collided[i]); + this->getPrimitiveTriangle(collided[i], triangle); + callback->processTriangle(triangle.m_vertices, part, collided[i]); } unlockChildShapes(); - } -void btGImpactMeshShape::processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const +void btGImpactMeshShape::processAllTriangles(btTriangleCallback* callback, const btVector3& aabbMin, const btVector3& aabbMax) const { int i = m_mesh_parts.size(); - while(i--) + while (i--) { - m_mesh_parts[i]->processAllTriangles(callback,aabbMin,aabbMax); + m_mesh_parts[i]->processAllTriangles(callback, aabbMin, aabbMax); } } -void btGImpactMeshShape::processAllTrianglesRay(btTriangleCallback* callback,const btVector3& rayFrom, const btVector3& rayTo) const +void btGImpactMeshShape::processAllTrianglesRay(btTriangleCallback* callback, const btVector3& rayFrom, const btVector3& rayTo) const { int i = m_mesh_parts.size(); - while(i--) + while (i--) { m_mesh_parts[i]->processAllTrianglesRay(callback, rayFrom, rayTo); } } - ///fills the dataBuffer and returns the struct name (and 0 on failure) -const char* btGImpactMeshShape::serialize(void* dataBuffer, btSerializer* serializer) const +const char* btGImpactMeshShape::serialize(void* dataBuffer, btSerializer* serializer) const { - btGImpactMeshShapeData* trimeshData = (btGImpactMeshShapeData*) dataBuffer; + btGImpactMeshShapeData* trimeshData = (btGImpactMeshShapeData*)dataBuffer; - btCollisionShape::serialize(&trimeshData->m_collisionShapeData,serializer); + btCollisionShape::serialize(&trimeshData->m_collisionShapeData, serializer); m_meshInterface->serialize(&trimeshData->m_meshInterface, serializer); @@ -235,4 +277,3 @@ const char* btGImpactMeshShape::serialize(void* dataBuffer, btSerializer* serial return "btGImpactMeshShapeData"; } - |