[PD] pix_buffer question

[jim]

Hi Mathieu,
Thanks a lot. A great solution!!
It works perfectly.
Cheers,
Jim
On Thu, 2010-04-01 at 21:07 -0400, Mathieu Bouchard wrote:
> Jim Ruxton a écrit :
> 
> > I wanted to create a fixed size pix_buffer which is continually fed, so for 
> > example if I have an index from 0 to 1000 once it is filled the most recent 
> > image always has the index 1000 and the oldest 0 indexed image is discarded 
> > and replaced by the second oldest image ie image with index 1. Is there a 
> > simple way to do this or do I have to do a pix_buffer_read and 
> > pix_buffer_write on all 1000 images stored to re-index them each time a new 
> > image is stored in the buffer? Thanks . I am assuming this is more or less 
> > how pix_delay works.
> 
> instead of that, once it goes beyond 1000, start over at 0. then whenever you 
> want to have a certain previous image, such as 666 frames ago, instead of 
> saying that you want frame 1000-666=334, say you want frame N-666 mod 1001, 
> that is,
> 
>   current frame number
>    |
>   [- 666]
>    |
>   [mod 1001]
>    |
>   ...
> 
> i say 1001 just because you say that the first index is 0 and the last index is 
> 1000, which means 1001 different indices, not 1000.
> 
>   _ _ __ ___ _____ ________ _____________ _____________________ ...
> | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801
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