fli_pal_dirty_to

fli_pal_dirty_from(3alleg4)      Allegro manual      fli_pal_dirty_from(3alleg4)



NAME
       fli_pal_dirty_from, fli_pal_dirty_to - Indicate which parts of the
       palette 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_variables(). 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_palette(). 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 ALSO
       fli_palette(3alleg4), reset_fli_variables(3alleg4)



Allegro                           version 4.4.3      fli_pal_dirty_from(3alleg4)