On Tue, 26 Feb 2002, ODOU Michel wrote: >Well, Mike, I understood but I still have some remarks :
>1- Why does is DRI code used for 2D acceleration ? I thought it >was a sort of API (like OpenGL), and didn't expect it to be used >in 2D. Common misconception. DRI is an interface between userland and the kernel to do DMA between the video board and memory basically in a nutshell. There is nothing at all restricting its usage for just 3D acceleration. The Radeon and Rage 128 drivers both use DRI for 2D acceleration as well if DRI is enabled. Newer code in the GATOS project also uses DRI for Xv IIRC. >2- This doesn't solve my problem : DRI works well on my >computer, and 2D acceleration isn't affected when I >enable/disable it : it is still choppy. I remember, under W98, I >had the same problem until I decided to install my Intellimouse >Optical's drivers. Then ... a miracle : when moving or resizing >a windows (even a almost maximized window), all was SMOOTH, I >could see the drawing was fast. Remember, all this in 1280x1024. I don't see how Windows 98 relates to the problem you're seeing. >Under Window Maker, it seems the window I'm moving is erased >somewhere and redrawn elsewhere, with very few transition. > >Finally, THAT is my problem : thre is no reason the W98 driver >is so fast and the X server isn't. Since I did encounter no >other problem under X 4.2.0, I think it is a configuration >problem. However, maybe it is because the mouse resolution is >much higher in Win98 than under X, although I tried the >"Resolution" option in the XF86Config-4 file. Windows 98 video drivers and XFree86 video drivers share nothing in common other than that they are video drivers. -- ---------------------------------------------------------------------- Mike A. Harris Shipping/mailing address: OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie, XFree86 maintainer Ontario, Canada, P6C 5B3 Red Hat Inc. Phone: (705)949-2136 http://www.redhat.com ftp://people.redhat.com/mharris Red Hat XFree86 mailing list: [EMAIL PROTECTED] General open IRC discussion: #xfree86 on irc.openprojects.net ---------------------------------------------------------------------- _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
