Re: Re: No sound - Solaris x86

Thu Dec 04 2003, Darrel Hankerson wrote:
> Concerning the performance of ogle on Solaris/x86, I wrote:
> 
>    The only disappointment is that a 400 MHz Pentium II with 128MB and
>    a ATI Rage Pro can do more than 20 fps in simple tests with Linux,
>    but is slower by a factor close to 3 with Solaris 8.
> 
> This was unfair to Solaris, which was running display depth 24 while
> the fastest Linux timings were run in 16-bit depth.  The factor is
> closer to 2 if both run at 24-bit depth.
> 
> ogle-0.9.2/mpeg2_video/yuv2rgb_mmx.c uses the single-instruction
> multiple-data (MMX) registers for depth 16.  At 24-bit depth, ogle
> advises "No accelerated colorspace coversion found".  I do not
> understand this well enough to know if 24-bit depth could benefit from
> SIMD.
> 
I'm sure it could, just no one has feelt inclined to write the code.

Much faster and also giving you scaling would be if you where to run
XFree86 (with a supported video card).  I'm unsure of the feasibility
of running XFree86 under Solaris/x86 though.

-- 
Håkan Hjort