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Does Logic 7.2.3(Intel) support DependentParameters correctly?
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Does Logic 7.2.3(Intel) support DependentParameters correctly?


  • Subject: Does Logic 7.2.3(Intel) support DependentParameters correctly?
  • From: yoshida <email@hidden>
  • Date: Wed, 9 May 2007 15:27:22 +0900

Hi,

My AudioUnit plugin has 2 relational parameters and other parameters.
For example, I have the following parameters.
 Param A (required A<B, if A>B then B=A+1 )
 Param B (required A<B, if A>B then A=B-1 )
 Param C

So I set kAudioUnitParameterFlag_IsGlobalMeta to Param A and B, and implemented
GetPropertySize() and GetProperty() to support kAudioUnitProperty_DependentParameters.
In this situation, if I edited Param A, I expected Logic to notice the change in Param B.
But Logic's Param B display was never changed. Still my plugin's GUI changed correctly.


Actually, if I didn't support kAudioUnitProperty_DependentParameters, my plugin
works fine except one thing:
That is, If I recorded automation for Meta-flag parameter, then other unrelated
parameter's automation data was broken...
For example,
 1. recorded Param C's automation
 2. recorded Param A's automation
 3. Param C's automation data was broken!!

This situation happens only on Intel-Mac. On PPC-Mac, It works well whether
kAudioUnitProperty_DependentParameters was supported or not.
So I suspect this is a bug of Logic(Intel).

Any help would be appreciated.
--
-----------------------------------------
English is not my native language,
so I'm not good at English, sorry :-(

                        M.Yoshida @ Japan
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