ZZ>
  > void draw_char (int c, int x, int y, int colour, PCH pchScreen)
  > {
  >     int   p[][8][8] = {
  >         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  >         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  >         0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,
  >         0,1,1,1,1,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
  > etc...... };
  > }
  >
  > ..the compile takes waaay longer now..a few minutes..
ZZ>

  Well don't make that array an automatic (i.e. stack) variable, for a
  start.  You could turn it into a static variable.

  You could even hive it off to a separate module, so that it doesn't
  need recompiling every time that the code to actually write the
  characters changes.

  There's also rather a lot of wasted space there.  Making each row a
  single 8-bit unsigned char would help.  In Metaware High C++ for OS/2
  that can be done as follows

ZZ>
  > void draw_char (int c, int x, int y, int colour, PCH pchScreen)
  > {
  >     static unsigned char p[][Y_LEN] = {
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00000000,
  >         0x2x00111000,
  >         0x2x01000100,
  >         0x2x01000100,
  >         0x2x01111100,
  >         0x2x01000100,
  >         0x2x01000100,
  >         0x2x00000000,
  >         // And so forth.
  >     } ;
  > }
ZZ>

  Other C++ compilers don't support binary integer literal constants, so
  you would have to convert to hex, octal, or decimal by hand.

  You then have to modify the loop to use a bitmask.  You can also do
  some invariant code motion, whilst you are at it.

ZZ>
  >    for (int k = 0 ; k < Y_LEN ; ++k)
  >    {
  >        unsigned char bits = p[c][k] ;
  >        PCH screen = pchScreen + ( (i + k) * X_RES + x ) ;
  >
  >        for (unsigned char mask = 1 >= 1)
  >        {
  >            *screen++ = (bits & mask) ? colour : 0 ;
  >        }
  >    }
ZZ>

  A good optimiser should make a further few improvements to the above
  loop, too.

  > JdeBP <
___
 X MegaMail 2.10 #0:
--- Maximus/2 2.01wb