Re: [AL] Allegro, color conversion and blits.

[Matthew S. <ma...@th...>]

----- Original Message -----
From: Matthew Smith <ma...@th...>

This uses a smaller table and is just as fast

 short  colores[512];

         //    these    are       256 - one for each value of attr  when
 bit=0  and  no flash
                                     x2        and for each attr when bit =
1


 draw_spectrum_line_16bpp (  short *  output_line , char * spec_attr ,
 char * spec_bitmap ) {

 int x,b,c;

         for ( x=0; x<32 ; x++ )   {

                     b= spec_bitmap++ ;  c= spec_attr++ ;
                     if ( hardware_flash ) c ^= 256 ;     // just reverse
how bit is used

                     output_line++ = colores[(b & 128) ? c ^ 256 : c];
                        etc


you need an init_colores_por_spec_16bpp()   routine which I can't write as I
forget how the speccy attributes go :(P