makecol_depth - Man Page

#include <allegro.h>

int makecol_depth(int color_depth, int r, int g, int b);

Converts colors from a hardware independent format (red, green, and blue  values ranging 0-255) to the pixel format required by the specified color  depth. Example:

   /* Compose the green color for 15 bit color depth. */
   int green_15bit = makecol_depth(15, 0, 255, 0);

Returns the requested RGB triplet in the specified color depth.

makeacol(3), makecol(3), makecol8(3), makecol15_dither(3), rgb_map(3), set_color_depth(3)

makeacol(3), makecol(3), makecol8(3).