[fpc-devel] sdlgraph, pre-alpha

Evgeniy Ivanov lolkaantimat at gmail.com
Thu Aug 23 09:53:32 CEST 2007

2007/8/22, Jonas Maebe <jonas.maebe at elis.ugent.be>:
> On 22 Aug 2007, at 20:59, Evgeniy Ivanov wrote:
> I guess the problem is that you blit the entire screen after every
> drawing operation. It will be faster when drawing lines at a time,
> but still slow. In theory, the flipping could/should be done from a
> separate thread, which only does the flipping once per vertical
> refresh of the monitor. I don't know whether SDL provides access to
> this information though.

Thanks a lot! Now I understand how I may speed up it.
There're no flipping once per vertical refresh, but there is flipping of
needed rect (not entire screen). I will try to use it with separate thread.

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