----- Original Message -----
From: "Michel Dänzer" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, October 28, 2002 2:38 AM
Subject: [Dri-devel] radeon: pageflipping & CRTC{,2}_OFFSET_{,CNTL}> > http://penguinppc.org/~daenzer/DRI/radeon-pageflip.diff > > is an attempt to fix the following pageflipping issues: > > * the 2D driver clobbers the CRTC{,2}_OFFSET_CNTL registers when > switching modes; as a consequence, flips only take place on the > next vertical blank, so you can see the back buffer being drawn to > * the 2D driver AdjustFrame() function doesn't take the current page > into account > * the DRM doesn't take the viewport position into account, so the > viewport is always reset to the upper left on a flip > * the DRM doesn't handle CRTC2 (for CloneMode) > > I can't fully test it, people who have reported any of these items (in > particular Jacek Rosik IIRC :) please give it a spin and let me know if > it helps. Unfortunately there is a bug. In radeon_state.c (radeon_cp_dispatch_flip) dev_priv->front_pitch is not in pixels but in bytes. So it must not be multipied by bpp. With following change everything seems to be ok. http://stud.ics.p.lodz.pl/~paproch/dri/radeon_state.c.diff BTW: Pitch is more than (max screen width)*4 in my case pitch~7680 with max width 1280. I think this is what caused problems with xawtv. -- Jacek ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
