Provided by: allegro4-doc_4.4.2-10_all bug


       rgb_map  -  Look  up table to speed up reducing RGB values to palette colors. Allegro game
       programming library.


       #include <allegro.h>

       extern RGB_MAP *rgb_map;


       To speed up reducing RGB values to 8-bit paletted colors, Allegro uses a 32k lookup  table
       (5  bits  for  each  color component). You must set up this table before using the gouraud
       shading routines, and if present the table will also vastly accelerate the makecol8()  and
       some  create_*_table() functions. RGB tables can be precalculated with the rgbmap utility,
       or generated at runtime with create_rgb_table().


       create_rgb_table(3alleg4),         makecol8(3alleg4),         create_trans_table(3alleg4),
       create_light_table(3alleg4),          create_color_table(3alleg4),          ex3d(3alleg4),
       excolmap(3alleg4), exrgbhsv(3alleg4), exshade(3alleg4), extrans(3alleg4)