RGB_MAP − Stores an rgb map to accelerate conversions. Allegro game programming library.
#include <allegro.h>
typedef struct RGB_MAP
unsigned char data[32][32][32];
Read chapter "Converting between color formats" for a description on how to obtain/use this structure.
create_rgb_table(3), ex3d(3), excolmap(3), exrgbhsv(3), exshade(3), extrans(3)