[Ffmpeg-devel] BlackFin lowlevel pixel operations PATCH

[Michael Niedermayer]

Hi

On Thu, Mar 29, 2007 at 08:59:59PM -0400, Marc Hoffman wrote:
Content-Description: message body text
> Michael Niedermayer writes:
>  > Hi
>  > 
>  > On Tue, Mar 27, 2007 at 09:38:53PM -0400, Marc Hoffman wrote:
>  > > Michael Niedermayer writes:
>  > >  > Hi
>  > >  > 
>  > >  > On Tue, Mar 27, 2007 at 07:52:35AM -0400, Marc Hoffman wrote:
>  > >  > > Diego Biurrun writes:
>  > >  > >  > On Tue, Mar 27, 2007 at 07:11:33AM -0400, Marc Hoffman wrote:
>  > >  > >  > > Diego Biurrun writes:
>  > >  > >  > >  > On Mon, Mar 26, 2007 at 10:00:39PM -0400, Marc Hoffman wrote:
>  > >  > >  > >  > Content-Description: message body text
>  > >  > >  > >  > > 
>  > >  > >  > >  > > This is the a set of video optimization for the Blackfin processor it
>  > >  > >  > >  > > includes most of the low level pixel operations.
>  > >  > >  > > 
>  > >  > >  > > Is this the right one version 2 changes to 2.1 and a couple of other
>  > >  > >  > > words.  Good catch, just double check this one.
>  > >  > >  > > 
>  > >  > >  > 
>  > >  > >  > Yes, this one is correct.
>  > >  > >  > 
>  > >  > >  > Diego
>  > >  > > 
>  > >  > > Changes made.
>  > >  > 
>  > >  > tabs are forbidden in svn and please provide dct-test.c output fo the new idct
>  > >  > 
>  > >  > also function names starting with _ are reserved
>  > >  > 
>  > >  > asm not reviewed as i dont know blackfin asm
>  > >  > 
>  > >  > [...]
>  > >  > -- 
>  > > 
>  > > I kind of have to kludge up the dct-test mechanism can we agree on the
>  > > appropriate mechanism for changes to the dct-test?
>  > > 
>  > > oh by the way you help me find an error of 10 in the idct, I have a
>  > > modified routine which now passes correctly. I guess that would mean I
>  > > owe you a beer or two + an awesome story that will make you laugh your
>  > > head off if we ever actually meet. So the idct codes have changed to
>  > > meet spec.
>  > [...]
>  > > Now I'm thinking that we might want to build something a little more configurable for this dct test
>  > > 
>  > > struct {	 
>  > >        dct1,
>  > >        dct2,
>  > > blah blah
>  > >   
>  > > } dctsf
>  > > 
>  > > #ifdef MMX
>  > > 
>  > > blah table of dct functions
>  > > 
>  > > #elif ALTIVEC
>  > > 
>  > > blah
>  > > 
>  > > #else BFIN
>  > > 
>  > > blah
>  > > 
>  > > #endif
>  > > 
>  > > then call each one via indirection but otherwise here would be a stab
>  > > at the changes: Not sure who would do such a task I could do it if you
>  > > want to make it easier for others to test their backends.
>  > 
>  > iam fine with someone cleaning dct-test.c up ...
> 
> Michael I will put a proposal together with the initial code of the
> idea probably in the beginning of next week.
> 
> How is this patch shaping up?

as i dont know bfin asm i dont feel qualified to review it, so id be
glad if someone else who does now bfin asm could do that
(and no i dont have time to learn bfin asm ATM, not counting a brief 
look at the gas manual page but thats too little to review the code)

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Why not whip the teacher when the pupil misbehaves? -- Diogenes of Sinope
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