[PD] netsending pixes

Claude Heiland-Allen claudiusmaximus at goto10.org
Fri Apr 11 13:17:41 CEST 2008

Jack wrote:
> About [pix_share_read] and [pix_share_write]. Is there a method using  
> this two objects to share a picture that come from a  
> [gemframebuffer] ? I think is not possible. Am I wrong ?

As far as I know (correct me if I'm wrong!), [gemframebuffer] stores 
images in GPU memory, you need to get it back to CPU memory as a pix, 
using eg [pix_snap], but that only snaps what is currently displayed 
(not from a framebuffer) (again correct me if I'm wrong).

And in my experience with oldish AGP graphics cards, GPU->CPU image 
copying is rather slow.  PCIe may be better, I don't know.

I don't know if there is any way to share GPU memory between independent 
processes on the same machine, would be cool.


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