I'd be interested in helping out with the savage work. I don't know much about the DRI, but I can help test. I'm actually working (slowly) on adding dual head (duoview) support to the savage driver for the mobile savages. I've started on the code, but I've been so busy lately that I've had no time to do much with it. I'd like to do the dual head support so that each head was just a view port into a single frame buffer, but there is no example code for this in any other X driver (I've modeled it after the radeon and mga drivers); doing this would allow for DRI on both heads. As an added bonus, the savage chips have 2 video scalers so each head could theoretically have Xv support.
just my 2 cents. Alex ---------------------------- I've just started two branches on DRI CVS, savage-0-0-1-branch and nv-0-0-1-branch, for the development of drivers for the Savage chips (in particular the Savage4) and the older nVidia chips (such as the Riva TNT Vanta). Both these cards are very old by now and the interest of a DRI driver diminishes every day - including mine -, so I've decided that it should be now or never. I chose now, even though my PhD is demanding more and more time from me. This endeavor has no time plan. Actually my main interest is the learning experience of making a DRI driver from ground up - experience which I plan to share by writing a thorough HOWTO describing the steps and explaining the working of a driver from the high-level structure to the low-level implementation details. (You already can see the very first writings on http://dri.sf.net/doc/howto/) I have the Savage4 specifications (BCI documentation still missing), not thanks to S3 of whom I'm waiting for a final answer until today. I don't have any documentation from nVidia - I confess I haven't contact them yet but the impression I have is that no documentation is made available. There is support for both these chips in the Utah-GLX project. Also the proprietary nVidia Linux drivers come with some source code (which was also the basis for the Utah-GLX drivers). The plan is to: 1. Make the existing 2D drivers DRI aware. 2. Make a simple DRM which dispatches buffers to the card trhough MMIO 3. Make the Mesa driver, hopefully reusing some of the Utah-GLX code (but probably 4. Implement proper DMA in the kernel. The nVidia driver will follow the Savage a little from behind to avoid making the same mistakes twice. In the beginning it will be mainly coding - I won't make any debugging with the cards myself until the Mach64 is finished and in the trunk (hopefully it won't take long, but it's not done yet). People which are interested in having these drivers see the light of day (I know that the Savage chip is common on laptops and AFAIK there no nVidia proprietary drivers for non-Linux non-x86 platforms) are surely welcome to help, as they can turn this small project of mine in something definite. I know that Max Lingua has better documentation for the Savage4 than I and he even has the beginnings of a driver but long time I don't hear from him, and I already had asked him to commit whatever he had to cvs much before with no answer to that. José Fonseca __________________________________________________ Do you Yahoo!? HotJobs - Search new jobs daily now http://hotjobs.yahoo.com/ _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
