Added ability to dump narrow phase stats for performance test

PerformanceTest/PerformanceTest.cpp

@@ -8,6 +8,7 @@
 #include <Core/JobSystemThreadPool.h>
 #include <Physics/PhysicsSettings.h>
 #include <Physics/PhysicsSystem.h>
+#include <Physics/Collision/NarrowPhaseStats.h>
 #ifdef JPH_DEBUG_RENDERER
 	#include <Renderer/DebugRendererRecorder.h>
 	#include <Core/StreamWrapper.h>
@@ -18,6 +19,7 @@
 #include <thread>
 #include <chrono>
 #include <memory>
+#include <cstdarg>
 
 using namespace JPH;
 using namespace std;
@@ -32,6 +34,18 @@ constexpr float cDeltaTime = 1.0f / 60.0f;
 // Number of iterations to run the test
 constexpr uint cMaxIterations = 500;
 
+static void TraceImpl(const char *inFMT, ...)
+{ 
+	// Format the message
+	va_list list;
+	va_start(list, inFMT);
+	char buffer[1024];
+	vsnprintf(buffer, sizeof(buffer), inFMT, list);
+
+	// Print to the TTY
+	cout << buffer << endl;
+}
+
 // Program entry point
 int main(int argc, char** argv)
 {
@@ -103,6 +117,9 @@ int main(int argc, char** argv)
 		}
 	}
 
+	// Install callbacks
+	Trace = TraceImpl;
+
 	// Register all Jolt physics types
 	RegisterTypes();
 
@@ -243,6 +260,10 @@ int main(int argc, char** argv)
 		}
 	}
 
+#ifdef JPH_TRACK_NARROWPHASE_STATS
+	NarrowPhaseStat::sReportStats();
+#endif // JPH_TRACK_NARROWPHASE_STATS
+
 	// End profiling this thread
 	JPH_PROFILE_THREAD_END();