Jerome Glisse wrote: ... > Why do you want to use XF86DRIQueryDirectRenderingCapable ? I only called XF86...Capable to confirm that the software recognized my video card as *capable* of direct rendering.
> glXIsDirect tells you what you want to know ie if it's direct > or not. Correct, glXDirect tells me the context is or is not *using* direct rendering. > I don't understand what you are trying to do here, you shouldn't > care to know if direct rendering is enabled or not, applications > shouldn't behave differently if DRI is enabled or not. I thought direct rendering is faster than indirect as it avoids the translation from OpenGL to the X protocol and then back again. The difference in application behaviour is then only speed but it my case the difference is 'crash' or 'works ok'. Another question is why should I specify direct/indirect in glXCreateContext if there is no reason to care. 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. 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. 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. 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. Regards, Enno ------------------------------------------------------------------------------ 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
