Per frame logging use output_file and date

src/logging.h

@@ -40,15 +40,17 @@ void writeFile(string filename){
   logArray.clear();
 }
 
-void logging(void *params_void){
-  overlay_params *params = reinterpret_cast<overlay_params *>(params_void);
+string get_current_time(){
   time_t now_log = time(0);
   tm *log_time = localtime(&now_log);
   std::ostringstream buffer;
   buffer << std::put_time(log_time, "%Y-%m-%d_%H-%M-%S");
   string date = buffer.str();
+  return date;
+}
 
-
+void logging(void *params_void){
+  overlay_params *params = reinterpret_cast<overlay_params *>(params_void);
   while (loggingOn){
     uint64_t now = os_time_get();
     elapsedLog = now - log_start;
@@ -60,5 +62,5 @@ void logging(void *params_void){
       this_thread::sleep_for(chrono::milliseconds(log_period));
   }
 
-  writeFile(params->output_file + date);
+  writeFile(params->output_file + get_current_time());
 }

src/overlay.cpp

@@ -935,10 +935,11 @@ void check_keybinds(struct overlay_params& params){
          benchmark.fps_data.clear();
          log_start = now;
        }
-
+       if (!params.output_file.empty() && params.log_duration == 0 && loggingOn)
+         writeFile(params.output_file + get_current_time());
        loggingOn = !loggingOn;
        
-       if (loggingOn && log_period != 0 && !params.output_file.empty())
+       if (!params.output_file.empty() && loggingOn && log_period != 0)
          std::thread(logging, &params).detach();
 
      }
@@ -1500,10 +1501,10 @@ void render_imgui(swapchain_stats& data, struct overlay_params& params, ImVec2&
 
       if (loggingOn && log_period == 0){
          elapsedLog = (double)(now - log_start);
-         if ((elapsedLog) >= params.log_duration * 1000000)
+         if (params.log_duration && (elapsedLog) >= params.log_duration * 1000000)
             loggingOn = false;
 
-         out << fps << "," <<  cpuLoadLog << "," << gpuLoadLog << "," << (now - log_start) << endl;
+         logArray.push_back({fps, cpuLoadLog, gpuLoadLog, elapsedLog});
       }
 
       if (params.enabled[OVERLAY_PARAM_ENABLED_frame_timing]){