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Merge pull request #1766 from erwincoumans/master

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lazy creation of batch scheduler, it causes issues with the physics.
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erwincoumans 2018-06-16 14:02:11 -07:00 committed by GitHub
commit 8c851a70c7
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2 changed files with 18 additions and 10 deletions
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27
examples/SharedMemory/PhysicsServerCommandProcessor.cpp
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@ -1783,15 +1783,6 @@ PhysicsServerCommandProcessor::PhysicsServerCommandProcessor()
createEmptyDynamicsWorld();
#ifdef BT_THREADSAFE
if (btGetTaskScheduler() == 0) {
m_data->m_scheduler = btCreateDefaultTaskScheduler();
if (m_data->m_scheduler == 0) {
m_data->m_scheduler = btGetSequentialTaskScheduler();
}
btSetTaskScheduler(m_data->m_scheduler);
}
#endif //BT_THREADSAFE
}
PhysicsServerCommandProcessor::~PhysicsServerCommandProcessor()
@ -4820,6 +4811,19 @@ struct BatchRayCaster : public btIParallelForBody
}
};
void PhysicsServerCommandProcessor::createTaskScheduler()
{
#ifdef BT_THREADSAFE
if (btGetTaskScheduler() == 0) {
m_data->m_scheduler = btCreateDefaultTaskScheduler();
if (m_data->m_scheduler == 0) {
m_data->m_scheduler = btGetSequentialTaskScheduler();
}
btSetTaskScheduler(m_data->m_scheduler);
}
#endif //BT_THREADSAFE
}
bool PhysicsServerCommandProcessor::processRequestRaycastIntersectionsCommand(const struct SharedMemoryCommand& clientCmd, struct SharedMemoryStatus& serverStatusOut, char* bufferServerToClient, int bufferSizeInBytes)
{
bool hasStatus = true;
@ -4844,6 +4848,7 @@ bool PhysicsServerCommandProcessor::processRequestRaycastIntersectionsCommand(co
BatchRayCaster batchRayCaster(m_data->m_dynamicsWorld, &rays[0], (b3RayHitInfo *)bufferServerToClient, totalRays);
if (numThreads == 0) {
createTaskScheduler();
// When 0 is specified, Bullet can decide how many threads to use.
// About 16 rays per thread seems to work reasonably well.
batchRayCaster.castRays(totalRays / 16);
@ -4853,8 +4858,10 @@ bool PhysicsServerCommandProcessor::processRequestRaycastIntersectionsCommand(co
batchRayCaster.processRay(i);
}
} else {
// Otherwise, just use the user-specified number of threads. This is
// still limited by the number of virtual cores on the machine.
createTaskScheduler();
batchRayCaster.castRays(numThreads);
}
@ -7251,7 +7258,7 @@ bool PhysicsServerCommandProcessor::processSendPhysicsParametersCommand(const st
if (clientCmd.m_updateFlags&SIM_PARAM_ENABLE_SAT)
{
m_data->m_dynamicsWorld->getDispatchInfo().m_enableSatConvex = clientCmd.m_physSimParamArgs.m_enableSAT;
m_data->m_dynamicsWorld->getDispatchInfo().m_enableSatConvex = clientCmd.m_physSimParamArgs.m_enableSAT!=0;
}

1
examples/SharedMemory/PhysicsServerCommandProcessor.h
View File

@ -21,6 +21,7 @@ class PhysicsServerCommandProcessor : public CommandProcessorInterface
struct PhysicsServerCommandProcessorInternalData* m_data;
void resetSimulation();
void createTaskScheduler();
protected: