On 6/29/06, Jussi Vainionpää <[EMAIL PROTECTED]> wrote:
> > So can the OGC framerate / vertical refresh be finetuned by software > > without causing glitches in the output? > > The thing to do is watch an in-coming vertical sync signal and adjust > when we start the next frame. We can't get the pixel timing exact, > but we can compensate for drift in frame start time. > Do you mean adjust the pixel clock at the start of the next frame? Or adjust the delay between frames without changing the pixel clock?
No. I mean to insert or delete clock cycles out of the blanking time at the end of a frame to compensate for drift between captured frame timing and output frame timing. Monitors will generally tolerate some variation as to when the frame starts. TVs in particular need to be very tolerant, because of how video tape has considerable variance in timing.
What I'm worried about is will the display device be able to keep its input and its internal updates to its LCD / DLP / whatever in sync without duplicating or dropping frames.
Isn't that a matter of how quickly you can get data into the framebuffer? _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
