shithub: qk1

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add "showfps" cvar

--- a/screen.c

+++ b/screen.c

@@ -20,6 +20,7 @@

 cvar_t		scr_showturtle = {"showturtle","0"};

 cvar_t		scr_showpause = {"showpause","1"};

 cvar_t		scr_printspeed = {"scr_printspeed","8"};

+cvar_t		scr_showfps = {"showfps","0", true};

 qboolean	scr_initialized;		// ready to draw

@@ -299,6 +300,7 @@

 	Cvar_RegisterVariable (&scr_showpause);

 	Cvar_RegisterVariable (&scr_centertime);

 	Cvar_RegisterVariable (&scr_printspeed);

+	Cvar_RegisterVariable(&scr_showfps);

 	Cmd_AddCommand("screenshot", screenshot);

 	Cmd_AddCommand ("sizeup",SCR_SizeUp_f);

 	Cmd_AddCommand ("sizedown",SCR_SizeDown_f);

@@ -353,6 +355,26 @@

 	Draw_Pic (scr_vrect.x, scr_vrect.y, scr_turtle);

 }

+void SCR_DrawFPS (void)

+{

+	static uvlong lastframetime;

+	static int lastcnt, fps;

+	uvlong t;

+	int n;

+	char s[16];

+

+	if(!scr_showfps.value)

+		return;

+	t = nanosec();

+	if((t - lastframetime) >= 1000000000ULL){

+		fps = host_framecount - lastcnt;

+		lastcnt = host_framecount;

+		lastframetime = t;

+	}

+	n = snprint(s, sizeof(s), "%d", fps);

+	Draw_String(vid.width - n*8, 0, s);

+}

+

 /*

 ==============

 SCR_DrawNet

@@ -739,6 +761,7 @@

 		SCR_DrawConsole ();

 		M_Draw ();

 	}

+	SCR_DrawFPS();

 	V_UpdatePalette ();

 	flipfb(scr_copyeverything ? vid.height :