On Wed, Oct 15, 2003 at 09:50:12AM +0200, M�ns Rullg�rd wrote: > Sven Luther <[EMAIL PROTECTED]> writes: > > >> >>>I've been trying to find specs for implementing hardware RENDER > >> >>>support for my graphics card. I have the specs for the card. The > >> >>>problem is that nobody seems to know what the various RENDER functions > >> >>>in a driver are supposed to do, or what the structs represent. > >> >>>Without this information, there's not much I can do. > >> >> > >> >>For a start, look at the mga or the sis driver. Both accelerate aa > >> >>texture blitting for aa text with quite remarkable speed improvements. > >> > > >> > > >> >I was hoping not to have to wade through hundreds of lines of chip > >> >specific code and try to guess what they tell the chip to do. If I > >> >only knew exactly what the functions are supposed to do, and what the > >> >supplied data is, it would be straight-forward to have my chip do the > >> >work. > >> > >> The parts that do RENDER accleration are by no means hundreds lines of > >> code. It plain two accelerator functions. I myself had no clue either > >> when I started, and implementing this took only one day. > > > > Then why has not someone added documentation for it in the XAA.HOWTO > > file, if it is that simple ? > > Good question. > > BTW, Sven. RENDER support for Permedia3 should be possible, right?
Yep, there is no reason it should not. The only problem is that pm3 doesn't support per color alpha if i remember well, but i don't know if this is really needed for the part of RENDER accel that is discussed here. Still, it is inexcusable of the RENDER author to not provide documentation, after more than 2 years of asking for it, especially if it is that short. I hope to have again a working pm3 setup in two weeks or so, so i would be willing to test your code if you write it. In fact i already have an old pentium II motherboard, altough i don't have a case for it right now, nor RAM or a disk. Friendly, Sven Luther _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
