Stefano D'Angelo zanga.mail at gmail.com
Thu Jun 18 21:23:45 UTC 2009

2009/6/18 Tim Goetze <tim at quitte.de>:
> [Stefano D'Angelo]
>>Note: a weird host could copy make a copy of the descriptors (I see
>>nothing claiming this should not happen in the header file), thus ABI
>>would be broken... this could maybe happen in LADSPA hosts written in
>>non-C languages (why does Java come to my mind?).
> No, it's not a problem.  A host that does this is just treating the
> plugin as a 1.1 version and ignoring the extra fields of the struct,
> which is completely legal and causes no problems whatsoever.

As long as new stuff is added at the end of the struct (after all other fields).

> Besides, the ladspa.h file states:
> """The plugin descriptor from which this instantiate function was
> found must also be passed."""
> when describing the instantiate() method of the plugin, the only one
> that takes a descriptor pointer as an argument, effectively precluding
> the plugin code stumbling across the use of a copied descriptor struct
> as you describe it.

Sorry, didn't see that. Well, I guess there's no problem on the plugin
side then... any other possible problems on the host side?

In case there are none, we could add an array or another callback.


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