r128 or new card

[Alex Deucher]

On Tue, Jun 24, 2008 at 3:27 PM, Ondrej Zary <linux at rainbow-software.org> wrote:
> On Tuesday 24 June 2008 20:32:34 Corbin Simpson wrote:
>> Alberto Hernando wrote:
>> > El Lunes, 23 de Junio de 2008 06:02, Alex Deucher escribió:
>> >> IIRC the gl requirements of the mplayer gl output are probably more
>> >> than the r128 3D engine can handle without software fallbacks, and I'd
>> >> imaging you are hitting quite a few.
>> >
>> > Hi.
>> >
>> > If this is so, considering that glxgears asks for a lot of cpu too...
>> > does it mean that the driver lacks a few features?
>> > OTOH, I've built the same in another box. It's one with and igp9100
>> > chipset. And I get more or less the same: glxgears not too fast (I don't
>> > have numbers, sorry) but also asking for a lot of cpu. That one is
>> > ati-6.8.191. But in this case what I really want is tv-out, so I don't
>> > care much.
>>
>> Gears Is Not A Benchmark. :3
>>
>> mplayer -vo gl is slow for a handful of reasons; typically, mplayer -vo
>> gl2 will be much faster. I don't know which one will perform better on
>> the r1xx series; it's entirely possible that both of them require
>> features that the r1xx just doesn't support.
>>
>> However, on Radeons, Xv is always going to be fastest because it uses 3D
>> engine code directly, without going through DRI, and it should be quite
>> suitable for your needs.
>
> Xv is best on Rage 128 too. Last time I tried it, there was a problem with
> 16MB card - Xv acceleration didn't work when DRI was enabled - looked like
> driver limitation.

Depends on the size of your screen.  Currently the front, back, and
depth buffers are statically allocated when the DRI is active so that
doesn't leave much ram left over for things like Xv.

Alex