Carsten Haitzler ([EMAIL PROTECTED]): > On Fri, 30 May 2003 13:16:54 +0100 Asier Goikoetxea Yanci <[EMAIL PROTECTED]> > babbled: > > > Hi there, > > > > I have writen an application to scroll a text on a window (just like kbanner > > screen saver but on a window). I provide different texts and the program > > scrolls them one after the other quite smoothly. > > > > However, there is an issue that I didn't manage to solve, flickering. I've > > been searching and I found that the flickering is caused because the print is > > not synchronised with the vertical frecuency/signal (or at least is what I > > understood). It seems that printing the text on the screen/window when vblank > > is happening solves the problem of flickering. And it seems that I have to > > use SYNC extension in order to solve this problem. Am I right? Correct me > > please if I am wrong. > > > > Well, the thing is that I have not clue on how to use SYNC extension, not even > > that still wont solve the problem. use double buffering. draw to a > pixmap - then when drawing is done copy it to the window.
That will solve flickering, won't solve tearing. I'd argue that both are pretty important. :) -Billy > > > if it would solve my problem. Any suggestion is wellcome. > > > > Thank you. > > > > Asier > > _______________________________________________ > > Devel mailing list > > [EMAIL PROTECTED] > > http://XFree86.Org/mailman/listinfo/devel > > > -- > --------------- Codito, ergo sum - "I code, therefore I am" -------------------- > The Rasterman (Carsten Haitzler) [EMAIL PROTECTED] > [EMAIL PROTECTED] > Mobile Phone: +61 (0)413 451 899 Home Phone: 02 9698 8615 > _______________________________________________ > Devel mailing list > [EMAIL PROTECTED] > http://XFree86.Org/mailman/listinfo/devel _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
