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abstraction of recursion through bullet perf stats

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This commit is contained in:
Andrew Meadows 2017-12-06 16:49:27 -08:00
parent 0ff91e5926
commit 068d04c58d
2 changed files with 30 additions and 23 deletions
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52
libraries/physics/src/PhysicsEngine.cpp
View file

@ -10,6 +10,7 @@
//
#include <PhysicsCollisionGroups.h>
#include <functional>
#include <PerfStat.h>
@ -328,6 +329,33 @@ void PhysicsEngine::stepSimulation() {
}
}
using CProfileOperator = std::function<void(CProfileIterator*, QString)>;
CProfileOperator harvestProfile = [](CProfileIterator* profileIterator, QString contextName) {
QString childContextName = contextName + QString("/") + QString(profileIterator->Get_Current_Name());
uint64_t time = (uint64_t)((btScalar)MSECS_PER_SECOND * profileIterator->Get_Current_Total_Time());
PerformanceTimer::addTimerRecord(childContextName, time);
};
void recurseOpOnPerformanceStats(CProfileOperator op, CProfileIterator* profileIterator, QString contextName) {
QString parentContextName = contextName + QString("/") + QString(profileIterator->Get_Current_Parent_Name());
// get the stats for the children
int32_t numChildren = 0;
profileIterator->First();
while (!profileIterator->Is_Done()) {
op(profileIterator, contextName);
profileIterator->Next();
++numChildren;
}
// recurse the children
for (int32_t i = 0; i < numChildren; ++i) {
profileIterator->Enter_Child(i);
recurseOpOnPerformanceStats(op, profileIterator, parentContextName);
}
// retreat back to parent
profileIterator->Enter_Parent();
}
void PhysicsEngine::harvestPerformanceStats() {
// unfortunately the full context names get too long for our stats presentation format
//QString contextName = PerformanceTimer::getContextName(); // TODO: how to show full context name?
@ -340,7 +368,7 @@ void PhysicsEngine::harvestPerformanceStats() {
for (int32_t childIndex = 0; !profileIterator->Is_Done(); ++childIndex) {
if (QString(profileIterator->Get_Current_Name()) == "stepSimulation") {
profileIterator->Enter_Child(childIndex);
recursivelyHarvestPerformanceStats(profileIterator, contextName);
recurseOpOnPerformanceStats(harvestProfile, profileIterator, contextName);
break;
}
profileIterator->Next();
@ -348,27 +376,6 @@ void PhysicsEngine::harvestPerformanceStats() {
}
}
void PhysicsEngine::recursivelyHarvestPerformanceStats(CProfileIterator* profileIterator, QString contextName) {
QString parentContextName = contextName + QString("/") + QString(profileIterator->Get_Current_Parent_Name());
// get the stats for the children
int32_t numChildren = 0;
profileIterator->First();
while (!profileIterator->Is_Done()) {
QString childContextName = parentContextName + QString("/") + QString(profileIterator->Get_Current_Name());
uint64_t time = (uint64_t)((btScalar)MSECS_PER_SECOND * profileIterator->Get_Current_Total_Time());
PerformanceTimer::addTimerRecord(childContextName, time);
profileIterator->Next();
++numChildren;
}
// recurse the children
for (int32_t i = 0; i < numChildren; ++i) {
profileIterator->Enter_Child(i);
recursivelyHarvestPerformanceStats(profileIterator, contextName);
}
// retreat back to parent
profileIterator->Enter_Parent();
}
void PhysicsEngine::doOwnershipInfection(const btCollisionObject* objectA, const btCollisionObject* objectB) {
BT_PROFILE("ownershipInfection");
@ -515,6 +522,7 @@ const VectorOfMotionStates& PhysicsEngine::getChangedMotionStates() {
void PhysicsEngine::dumpStatsIfNecessary() {
if (_dumpNextStats) {
_dumpNextStats = false;
CProfileManager::Increment_Frame_Counter();
CProfileManager::dumpAll();
}
}

1
libraries/physics/src/PhysicsEngine.h
View file

@ -94,7 +94,6 @@ public:
private:
QList<EntityDynamicPointer> removeDynamicsForBody(btRigidBody* body);
void addObjectToDynamicsWorld(ObjectMotionState* motionState);
void recursivelyHarvestPerformanceStats(CProfileIterator* profileIterator, QString contextName);
/// \brief bump any objects that touch this one, then remove contact info
void bumpAndPruneContacts(ObjectMotionState* motionState);