Enno Fennema wrote: > My longer term aim is to understand what my Radeon SE9200 can and cannot > do. Mesa is so clever that it hides by software when hardware is > deficient. I think that only by getting access to the the drm kernel > driver can I start exploring the hardware.
The DRM only exposes a few simple ioctls; the actual acceleration is done in Mesa. You'll need to read through the Mesa r200 code to understand what your card can and cannot do. :3 > As John Bridgman wrote DRI might be useful too for non-GL applications, > which do want contact with the X server not to clobber other windows but > otherwise would like to access non-GL capabilities of the hardware or GL > capabilities in a differnt way. That sounds icky. We're already working on a project called Gallium3D, which allows us to write non-GL apps in a standardized, simple way. (Of course, unfortunately, r200 isn't planned as part of Gallium3D... :C ) > Radeon documentation is possibly available but under non disclosure > conditions which I do not want to accept. At least I found very little > publicly available. r200 is documented in code; check out the r200-specific parts of xf86-video-ati and Mesa for more info. > In the short run I try to understand a bit better how DRI manages the > relation ships between X windows, those that GLXWindows and, maybe an > impossible animal, a DRM Window, which shows consideration for other X > windows. It's already been done with cairo-drm, which created Cairo contexts directly bound to i915 hardware through DRM. So it's certainly possible. ~ C. ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
