Helpful ReplyBUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs index)

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breebaar
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2017/03/27 21:30:55 (permalink)

BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs index)

With the latest Steinberg VST3 SDK update (v3.6.7), VST3 plugins that are compiled against this SDK crash in Sonar, which did not crash with VST3 SDK v3.6.6 or earlier. These are VST3 plugins that also use the JUCE framework (v4.3.1).
 
The root cause seems to be that for plugin parameters that are marked as 'program change' parameters, the following function from the VST SDK is called from Sonar with a parameter ID as first argument instead of the parameter index:
 
vsteditcontroller.cpp, line 105:
tresult PLUGIN_API EditController::getParameterInfo (int32 paramIndex, ParameterInfo& info)
 
If the parameter ID (represented as int32) is out of bounds re the parameter array, the VST3 SDK v3.6.7 throws an error (while v3.6.6 did not). Both versions of the SDK however exhibit the problem of calls with the parameter ID argument being mixed up as paramIndex (the SDKs seem to differ in robustness of dealing with this issue).
 
Using the exact same code, other hosts do call the above function with the correct arguments so this seems a Sonar specific problem. Parameters that are not marked as program change parameters work correctly in Sonar.
 
The issue occurs for Windows (7) x64, Sonar version 23.2.0 Build 45.
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    clintmartin
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/27 23:21:48 (permalink)
    This needs to be sent to someone who can help.

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    promidi
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/27 23:48:57 (permalink)
    This needs to be posted in the problem reports forum.

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    Keith Albright [Cakewalk]
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/28 00:43:46 (permalink) ☄ Helpfulby clintmartin 2017/03/28 02:58:42
    Thanks for the report.  We'll check it out.  
     
    Keith

    Keith
    #4
    Anderton
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/28 01:07:20 (permalink)
    Thank you Keith!!!

    The first 3 books in "The Musician's Guide to Home Recording" series are available from Hal Leonard and http://www.reverb.com. Listen to my music on http://www.YouTube.com/thecraiganderton, and visit http://www.craiganderton.com. Thanks!
    #5
    bitman
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/28 01:25:15 (permalink)
    Holy moly.

    lsb
     
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    #6
    djtrailmixxx
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/28 15:25:05 (permalink)
    Only slightly related. If you install the latest Stardock Fences on windows 10 x64, Production or Insider builds, it breaks plugin scanning. Nearly every plugin generates an error during auto scan.

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    #7
    pwalpwal
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/28 15:31:17 (permalink)
    djtrailmixxx Stardock Fences

    i had to look it up (i only know stardock as a games publisher) so i'll save the rest of you the trouble https://www.stardock.com/products/fences/
    not sure what could be happening to break plugin scanning?

    just a sec

    #8
    Keith Albright [Cakewalk]
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/29 17:53:58 (permalink)
    Thanks again for the specific report with the VST3 program change param.
    This is updated for 2017.04.
    Tested with Melda PowerSynth demo which is now responding to the program change from the Inspector.
    If anyone knows a synth that supports multiple program change params (i.e. for multiple midi channels) that'd be cool to check.  Melda supports a single unit with 1 program change param.
    Thanks.
     
    Keith
     

    Keith
    #9
    breebaar
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/03/29 22:49:08 (permalink) ☄ Helpfulby djtrailmixxx 2017/03/30 19:54:25
    Hi Keith,
     
    Thanks for looking into this and following up so quickly! 
     
    As for testing: the plugin that initially revealed the issue was not a synth but a VST3 effect plugin. I've made that plugin available for testing purposes here:
     
    www.toneboosters.com/downloads/Barricade_v4.1.2_win.zip
     
    The crash can be reproduced as follows:
    - Open a new project
    - Add a new audio track
    - Insert Barricade VST3 as effect on the track
     
    We've made an update available as temporary fix (by reverting to VST3 SDK v3.6.6) that won't crash, but still receives the program parameter call with the wrong arguments:
     
    www.toneboosters.com/downloads/Barricade_v4.1.3_win.zip
     
    Let me know if you need anything else for testing.
    #10
    Keith Albright [Cakewalk]
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    Re: BUG REPORT: Sonar calls VST3 plugin function with the wrong arguments (paramID vs inde 2017/04/24 18:36:38 (permalink)
    Have you tried the early access 2017.04 build?  Should be working.

    Keith
    #11
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