LinuxMusicians

Posted: **Fri Apr 10, 2020 8:02 pm**

Hey everyone my name is Martin and I am learning how to program plugins (and also still learning c++)

I'm making a plugin that will generate random midi cc messages, values within a specific range (max 0-127),
and also with a randomness in time (if the user want, 20ms-2000ms).
I'm using DISTRHO Plugin Framework (DPF)
I have no input (midi or audio) and I don't know when the host will call run() I think I need a loop but on what frames should it be based on?
I want to control the time in some way. I have this function for midi output below, but I can't figure it out by myself

Code: Select all

bool writeMidiEvent(const MidiEvent& midiEvent) noexcept;

In DistrhoPluginInfo.h I have only

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#define DISTRHO_PLUGIN_WANT_MIDI_OUTPUT 1
#define DISTRHO_PLUGIN_WANT_PROGRAMS 1

I have an empty run function
and I need you help to get started

Thanks

Posted: **Fri Apr 10, 2020 8:11 pm**

I am relaying this message from the DPF author falktx from the #lad IRC channel on freenode, who does not have a forum account here.

Code: Select all

needs to define that it wants midi input. with that defined, the run function changes to have midi events

slightly useful link https://distrho.github.io/DPF/classPlugin.html#a0a969c78f8455ac6ba65fa42e8c498f6

the idea is already there, just really needs that DISTRHO_PLUGIN_WANT_MIDI_INPUT 

another useful link https://distrho.github.io/DPF/group__PluginMacros.html

Posted: **Fri Apr 10, 2020 8:48 pm**

Okey, thanks. seems dirty, but I guess I could use midi input for something fun

edit: I realized I could use the midi input just like an "midi thru".

not so dirty after all...

LinuxMusicians

DPF run() with only midi out help

DPF run() with only midi out help

Re: DPF run() with only midi out help

Re: DPF run() with only midi out help