qcsrc/client/hud/panel/engineinfo.qc

   1 #include "engineinfo.qh"
   2
   3 #include <client/autocvars.qh>
   4 #include <client/miscfunctions.qh>
   5
   6 // Engine info (#13)
   7
   8 float prevfps;
   9 float prevfps_time;
  10 int framecounter;
  11
  12 float frametimeavg;
  13 float frametimeavg1; // 1 frame ago
  14 float frametimeavg2; // 2 frames ago
  15 float autocvar_hud_panel_engineinfo_framecounter_exponentialmovingaverage;
  16 float autocvar_hud_panel_engineinfo_framecounter_exponentialmovingaverage_new_weight;
  17 float autocvar_hud_panel_engineinfo_framecounter_exponentialmovingaverage_instantupdate_change_threshold;
  18 void HUD_EngineInfo()
  19 {
  20         if(!autocvar__hud_configure)
  21         {
  22                 if(!autocvar_hud_panel_engineinfo) return;
  23         }
  24
  25         HUD_Panel_LoadCvars();
  26         vector pos, mySize;
  27         pos = panel_pos;
  28         mySize = panel_size;
  29
  30         if (autocvar_hud_panel_engineinfo_dynamichud)
  31                 HUD_Scale_Enable();
  32         else
  33                 HUD_Scale_Disable();
  34         HUD_Panel_DrawBg();
  35         if(panel_bg_padding)
  36         {
  37                 pos += '1 1 0' * panel_bg_padding;
  38                 mySize -= '2 2 0' * panel_bg_padding;
  39         }
  40
  41         float currentTime = gettime(GETTIME_REALTIME);
  42         if(autocvar_hud_panel_engineinfo_framecounter_exponentialmovingaverage)
  43         {
  44                 float currentframetime = currentTime - prevfps_time;
  45                 frametimeavg = (frametimeavg + frametimeavg1 + frametimeavg2 + currentframetime)/4; // average three frametimes into framecounter for slightly more stable fps readings :P
  46                 frametimeavg2 = frametimeavg1;
  47                 frametimeavg1 = frametimeavg;
  48
  49                 float weight;
  50                 weight = autocvar_hud_panel_engineinfo_framecounter_exponentialmovingaverage_new_weight;
  51                 if(currentframetime > 0.0001) // filter out insane values which sometimes seem to occur and throw off the average? If you are getting 10,000 fps or more, then you don't need a framerate counter.
  52                 {
  53                         if(fabs(prevfps - (1/frametimeavg)) > prevfps * autocvar_hud_panel_engineinfo_framecounter_exponentialmovingaverage_instantupdate_change_threshold) // if there was a big jump in fps, just force prevfps at current (1/currentframetime) to make big updates instant
  54                                 prevfps = (1/currentframetime);
  55                         prevfps = (1 - weight) * prevfps + weight * (1/frametimeavg); // framecounter just used so there's no need for a new variable, think of it as "frametime average"
  56                 }
  57                 prevfps_time = currentTime;
  58         }
  59         else
  60         {
  61                 framecounter += 1;
  62                 if(currentTime - prevfps_time > autocvar_hud_panel_engineinfo_framecounter_time)
  63                 {
  64                         prevfps = framecounter/(currentTime - prevfps_time);
  65                         framecounter = 0;
  66                         prevfps_time = currentTime;
  67                 }
  68         }
  69
  70         vector color;
  71         color = HUD_Get_Num_Color (prevfps, 100);
  72         drawstring_aspect(pos, sprintf(_("FPS: %.*f"), autocvar_hud_panel_engineinfo_framecounter_decimals, prevfps), mySize, color, panel_fg_alpha, DRAWFLAG_NORMAL);
  73 }