state-reproducibility-flush test ignores CLAP_PARAM_IS_READONLY

[falkTX]

I have a plugin that only has "output" style parameters, basically pure metering that is exposed to the host with the parameter flags set as CLAP_PARAM_IS_READONLY

The validator tool fails to take this into account and tries to set values for these parameters, even though they are marked as read-only.

[robbert-vdh]

Only parameters marked as CLAP_PARAM_IS_AUTOMATABLE are considered in these tests. So it sounds like the parameter in question has both the CLAP_PARAM_IS_AUTOMATABLE and CLAP_PARAM_IS_READONLY flags set. Since even without CLAP_PARAM_IS_AUTOMATABLE parameters can still be changed by the host as a result of live user input, I'll change the filter to allow any non-hidden and non-readonly parameter to be randomized, as opposed to only randomizing automatable parameters. I'll also add a check that disallows parameters that have both CLAP_PARAM_IS_READONLY and CLAP_PARAM_IS_AUTOMATABLE/CLAP_PARAM_IS_MODULATABLE, as that is obviously an error on the plugin's side.

Can you try again with the latest master branch version?

[falkTX]

Hi, any chance for a rebuild or CI fixup? I do not have a rust compiler setup here, was hoping to test it with the GH actions but latest build failed (due to using deprecated 18.04 as base)

I did check on my side btw, and I am not using CLAP_PARAM_IS_AUTOMATABLE together with CLAP_PARAM_IS_READONLY, they are mutually exclusive on DPF side. The validation issue was all about the host changing params marked as read-only, which I believe it is fixed now but cannot test at the moment.