fps counter with rle sprites

[eradicate] / src / game.c

diff --git a/src/game.c b/src/game.c
index 4c220b5..86170cb 100644 (file)
--- a/src/game.c
+++ b/src/game.c
@@ -1,3 +1,5 @@
+#include <stdio.h>
+#include <stdarg.h>
 #include "game.h"
 #include "screens.h"
 #include "sprite.h"
@@ -50,3 +52,34 @@ void dbg_print(void *fb, int x, int y, const char *str)
        }
 }
 
+void dbg_printf(void *fb, int x, int y, const char *fmt, ...)
+{
+       static char buf[2048];
+       va_list ap;
+
+       va_start(ap, fmt);
+       vsprintf(buf, fmt, ap);
+       va_end(ap);
+
+       dbg_print(fb, x, y, buf);
+}
+
+void dbg_fps(void *fb)
+{
+       static char fpsbuf[8];
+       static long frame, prev_upd;
+       long msec = time_msec;
+       long delta;
+
+       frame++;
+
+       delta = msec - prev_upd;
+       if(delta >= 1024) {
+               frame *= 1000;
+               sprintf(fpsbuf, "%2ld.%1ld", frame >> 10, 10 * (frame & 0x3ff) >> 10);
+               frame = 0;
+               prev_upd = msec;
+       }
+
+       dbg_print(fb, 2, 2, fpsbuf);
+}