CLAP_PARAM_IS_STEPPED parameter is not working properly

[lewloiwc]

When I make this (https://github.com/baconpaul/clap-c99-distortion) into a VST3 using the method described in Getting Started, parameters with CLAP_PARAM_IS_STEPPED don't work properly. Reaper → https://youtu.be/EfBnUljIXgg Bitwig → https://youtu.be/cVVahhtgy9o Live → https://youtu.be/S-7ci_UcmuE

In the CLAP I'm creating, parameters with CLAP_PARAM_IS_STEPPED also don't work properly, so I think it might be an issue with clap-wrapper. Can you reproduce this in your environment?

I'm using Windows 10, and for building, I'm using: Developer Command Prompt for VS 2022 Visual Studio 2022 Developer Command Prompt v17.10.5

[defiantnerd]

I have to redact my comment and check it out first:

[defiantnerd]

it seems that it is an issue with the value string, the parameter itself is working well (you can hear the three different settings). I'll check it out if I can reproduce that.

[defiantnerd]

I am able to reproduce it and this is the fix:

--- a/src/detail/vst3/parameter.h
+++ b/src/detail/vst3/parameter.h
@@ -54,7 +54,7 @@ class Vst3Parameter : public Steinberg::Vst::Parameter
   {
     if (info.stepCount > 0)
     {
-      return (vst3value * info.stepCount + 1) + min_value;
+      return (vst3value * info.stepCount) + min_value;
     }
     return (vst3value * (max_value - min_value)) + min_value;
   }

I'll prepare a fix for the wrapper, too.