On 11.05.2017 20:43, James Richters wrote:
> I have a few console graphics applications that I originally wrote in
> Turbo Pascal that I have been able to convert over to Free Pascal and
> now have windows versions of these programs.  I notice that unless I run
> my program on a 3.5GHz machine or faster, the graphics are fairly
> slow.    By slow, I mean noticeably slower than they were on a Pentium
> 233 DOS machine with Turbo Pascal.  The intended computers for these
> programs are simple inexpensive PCs with motherboard video, no dedicated
> video cards, I think it should be possible for any modern computer to
> severely out perform a Pentium 233 with a VGA card in it, so I’m not
> sure what the issue is.   I am just using the graph unit for windows,
> and I wonder if there is a more efficient method of creating a full
> screen graphics only application than to use the graph unit?    I am
> only looking for it to work under windows and the main issue I would
> like to solve is the speed of drawing things on the screen like lines
> and arcs.  It would be nice if I am also able to get away from BGI fonts
> and use True Type fonts instead.  I don’t need 3D rendering or anything
> so complicated, just to draw lines and arcs and maybe ellipses as well
> as various text, and flood fill closed shapes with some solid color.
> 
>  
> 
> Any Suggestions?

You could try the units ptcgraph or sdlgraph as alternatives (both are
part of FPC). Other than that you could try to investigate why the
graphic unit is so slow on Windows...

Regards,
Sven
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