add fps output

GDP/D3D9/Time.cpp

@@ -1,4 +1,8 @@
 #include "Time.h"
+#if _DEBUG
+#include <string>  
+#endif // _DEBUG
+
 
 UINT Time::init()
 {
@@ -14,7 +18,15 @@ void Time::update()
     _lastFrame = now;
     _deltaTime = diff.count();
 
-
+#ifdef _DEBUG
+#ifdef UNICODE
+    wstring output = L"fps: " + to_wstring(1 / _deltaTime) + L"\n";
+    OutputDebugString(output.c_str());
+#else // !UNICODE
+    string output = "fps: " + to_string(1 / _deltaTime) + "\n";
+    OutputDebugString(output.c_str());
+#endif // UNICODE
+#endif // DEBUG
 }
 
 void Time::deInit()