NAME
fade_in - Gradually fades the palette from black. Allegro game
programming library.
SYNOPSIS
#include <allegro.h>
void fade_in(const PALETTE p, int speed);
DESCRIPTION
Fades gradually from a black screen to the specified palette. The speed
is from 1 (the slowest) up to 64 (instantaneous).
Note that this function will block your game while the fade is in
effect, and it won't work right visually if you are not in an 8 bit
color depth resolution.
SEE ALSO
fade_out(3alleg), fade_from(3alleg), fade_interpolate(3alleg),
fade_in_range(3alleg)