fli_pal_dirty_from(3) Allegro manual fli_pal_dirty_from(3)NAME
fli_pal_dirty_from, fli_pal_dirty_to - Indicate which parts of the pal‐
ette have changed. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
extern int fli_pal_dirty_from;
extern int fli_pal_dirty_to;
DESCRIPTION
These variables are set by next_fli_frame() to indicate which part of
the fli_palette has changed since the last call to reset_fli_vari‐
ables(). If fli_pal_dirty_from is greater than fli_pal_dirty_to, the
palette has not changed, otherwise colors fli_pal_dirty_from to
fli_pal_dirty_to (inclusive) have altered. You can use these when
updating the hardware palette, to avoid unnecessary calls to set_pal‐
ette(). Example:
if (fli_pal_dirty_from <= fli_pal_dirty_to)
set_palette_range(fli_palette, fli_pal_dirty_from,
fli_pal_dirty_to, 1);
SEE ALSOfli_palette(3), reset_fli_variables(3)Allegro version 4.4.2 fli_pal_dirty_from(3)
