[Mplayer-dev-eng] MP3LIB: new stuff

[Nick Kurshev]

Hi!

>>> 4. It would be better to test this new stuff by all developers who has different cpus:
>>> (K6, Pent-MMX, k6-2, (k7 - tested), P3). After that it can be applyed to mplayer.
>>
>>
>>P200MMX: works!
>>and it's faster too!! :-)) (before: 9% after: 6.8%)
>>AUDIO: srate=44100  chans=2  bps=2  sfmt=0x10  ratio: 14000->176400
>>
>Thanks for testing.
>I plan to rewrite dct64_MMX from new stuff with using 3dnow optimization for
>using this stuff and on k6-2 too.
>May be someone who has k6-2 want to test my new code? (in attach)
>For testing - in new stuff you should simply modify one string in decode_MMX.s
>from
>call dct64_MMX
>to
>call dct64_MMX_3dnow
>Note: this function is only partial optimized for 3dnow! I'll continue work on it in the next days.
>But I'm interesting with benchmarks on k6-2 since only this cpu causes doubts for me.
Forgot to tell - if who will test it then pay attention to sr1.c MP3_Init(). You should disable 3dnow there.
Change:
    _3dnow=a3dnow();
to
    _3dnow=0;
It's a trick for correct calling decode_MMX ;)

Best regards! Nick



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