On Wed, 2005-01-19 at 17:30 +0100, Roland Scheidegger wrote: > Michel DÃnzer wrote: > > > >>>> Also, if doing that in the drm, we'd need to mess with > >>>> OFFSET_CNTL there too (i.e. messy calculation or another field > >>>> in the sarea). > >>> > >>> > >>> You mean CRTC_OFFSET? I'm not sure the calculation is that big an > >>> issue... it'll never happen more than a couple thousand times > >>> per second anyway. ;) > >> > >> Well, both CRTC_OFFSET and CRTC_OFFSET_CNTL. > > > > > > The latter shouldn't matter if the writes are synchronized to the > > refresh anyway? Unless the update triggers at the same time the > > interrupt is generated without FLIP_CNTL... > I'm not 100% sure this will work. If you update the offset_cntl in the > ddx, the crtc might take the new value before drm had a chance to update > the offset register (if the vblank would just happen when you write the > offset_cntl, and thus the drm might need to wait for a full frame).
I see, I guess OFFSET_CNTL would have to be written by the DRM as well... > I was able to get rid of the new setparam + sarea variable for pageflip > + mergedfb/tiling. Cool. > Instead of double wrapping, I just got rid of DRIAdjustFrame altogether > (you can simply override the default wrap.AdjustFrame with 0). This will > probably break the fullscreen stuff, so I'm wondering should I care > about that or is this fullscreen stuff (deprecated for ages afaik) just > never used anyway and could be removed? I don't think we have to worry about that. -- Earthling Michel DÃnzer | Debian (powerpc), X and DRI developer Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
