[prev in list] [next in list] [prev in thread] [next in thread] 

List:       theora-dev
Subject:    [Theora-dev] theora MMX decoder
From:       pin () medic ! chalmers ! se (Ivan Popov)
Date:       2004-08-29 17:07:09
Message-ID: 20040827214820.GA26674 () fettuccine ! tekno ! chalmers ! se
[Download RAW message or body]

On Wed, Aug 25, 2004 at 07:37:08AM +0900, VP3HoSwiYO wrote:
> good morning everybody.
> I have finished converting mmx decode code to gcc.
> Now this can be compiled with both vc and gcc.
> 
> http://kyoto.cool.ne.jp/vp3/developers/theora-a3-MMXd.zip

Nice!

I get 22-30 % decoding acceleration compared to Wim's mmx-aware version
and   22-37 % compared to the mmx-unaware version on a
----------------------------------------------------------------------------
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 2
model name      : AMD Athlon(tm) Processor
stepping        : 1
cpu MHz         : 805.669
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat \
pse36 mmx fxsr syscall mmxext 3dnowext 3dnow bogomips        : 1605.63
----------------------------------------------------------------------------

Hope both encoder and decoder optimizations will eventually merge together.
Right now I have to link encoder and decoder binaries to different runtime
libs.

Thanks!
--
Ivan


[prev in list] [next in list] [prev in thread] [next in thread]