fli_timer (3) - Linux Manuals
fli_timer: Global variable for timing FLI playback. Allegro game programming library.
NAME
fli_timer - Global variable for timing FLI playback. Allegro game programming library.SYNOPSIS
#include <allegro.h>
extern volatile int fli_timer;
DESCRIPTION
Global variable for timing FLI playback. When you open an FLI file, a timer interrupt is installed which increments this variable every time a new frame should be displayed. Calling next_fli_frame() decrements it, so you can test it and know that it is time to display a new frame if it is greater than zero. Example:
while (next_fli_frame(0) == FLI_OK) {
/* Do stuff, like play audio stream
or check keys to skip animation. */
/* Rest some time until next frame... */
while (fli_timer <= 0)
rest(0);
}