[gmpi] Re: Topic 7: Audio packaging

On Wed, May 28, 2003 at 06:13:19 -0700, Chris Grigg wrote:
> >Er, there only needs to be one buffer of 0.0's per host, its never written
> >to.
> 
> Not true if connected to a process-in-place input, was my point. 
> Each one of those always needs its own copy because by definition it 
> will overwrite the input buffer with output, and then there go all 
> the 0.0's.

The host is not mandated to use inplace processing, it just has the option
to, if the plugin indicates it is compatible. If it wants the output to go
to a particular buffer (to save copying) it just sets the output as normal
and sets the input to be global_zero_buffer.

If the plugin indicated it /can/ run inplace it doesn't matter to it
wether it is or not, it shouldn't assume it will be. Equally if it has
inputs A and B and outputs C and D it shouldn't assume that A will become C
and B will become D, the host may have perfectly good reasons for crossing
them.

- Steve

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