[maemo-developers] [maemo-developers] SDL vertical blank (vbl) sync.

[From: Frantisek Dufka]

Juha Yrjölä wrote:

> Unfortunately we don't provide user-space with the vsync information (or 
> "Tearing Effect" signal, as it's called in LCD land).
> 
> If there's large enough need for this, we might consider implementing 
> the support.  The tearing effects should be minimal on the 770, however, 
> because of the high (around 55 Hz) refresh rate of the display.
> 

Hello,

well the effect is visible even when playing the Ice Age Trailer (I 
suppose it is not already in the movie data). I think such feature is 
quite useful for games and movie playback. BTW how big is the 
framebuffer memory? Is there space for 2 frames so double-buffering is 
possible? Also is there some datasheet for the Epson hwa742 chip? Can 
you make it public? I tried to google for it (and for lph8923 too) but 
found nothing useful. Thanks.

Frantisek