QuadDraw revisited - drawing program work in progress

[James D Jarvis]

Just reading the code and wondering why you never free fontsheet&  , is that because you passed it to _Memimage ?

No, to increase speed when calling the SUB more than once.  I decided it better to make fontsheet& only once and just leave it open for the whole program run, so the image doesn't have to be decoded/created every time the SUB is called.  I plan to use this for things that need fast drawing.  In my testing this increased speed over 10x.  I could call the SUB 1500 times in one second this way, but only 135 times a second when freeing the image and having to make it over every time.   I usually don't like to leave images hanging open, but in this case thought it worth it for the speed gain.

- Dav

Is there something gained by doing this in the sub and keeping track of the memory location as opposed to doing it outside the sub but with a shared handle created before calling the sub?  (sorry about the questions, just getting into really paying attention to memory usage as a feature to speed execution as opposed to just being able to hold onto data and make use of it).