al_convert_mask_to_alpha3
Allegro 5 api
Usage
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#include <allegro5/allegro.h> void al_convert_mask_to_alpha(ALLEGRO_BITMAP *bitmap, ALLEGRO_COLOR mask_color)
Overview
Convert the given mask color to an alpha channel in the bitmap. Can be used to convert older 4.2-style bitmaps with magic pink to alpha-ready bitmaps.