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rgb_map(3)			 Allegro manual 		      rgb_map(3)

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

SYNOPSIS
     #include <allegro.h>

     extern RGB_MAP *rgb_map;

DESCRIPTION
     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() func-
     tions. RGB tables can be precalculated with the rgbmap utility,  or  gener-
     ated at runtime with create_rgb_table().

SEE ALSO
     create_rgb_table(3),  makecol8(3),  create_trans_table(3), create_light_ta-
     ble(3),   create_color_table(3),	ex3d(3),    excolmap(3),    exrgbhsv(3),
     exshade(3), extrans(3)

Allegro 			  version 4.4.3 		      rgb_map(3)

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