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Add SysEx support for VST3

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This commit is contained in:
Robbert van der Helm 2023-01-31 21:52:21 +01:00
parent e7be5ef178
commit b35914bbbd
1 changed files with 47 additions and 1 deletions
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48
src/wrapper/vst3/wrapper.rs
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@ -1,10 +1,11 @@
use std::borrow::Borrow;
use std::cmp;
use std::ffi::c_void;
use std::mem::{self, MaybeUninit};
use std::ptr;
use std::sync::atomic::Ordering;
use std::sync::Arc;
use vst3_com::vst::{IProcessContextRequirementsFlags, ProcessModes};
use vst3_com::vst::{DataEvent, IProcessContextRequirementsFlags, ProcessModes};
use vst3_sys::base::{kInvalidArgument, kNoInterface, kResultFalse, kResultOk, tresult, TBool};
use vst3_sys::base::{IBStream, IPluginBase};
use vst3_sys::utils::SharedVstPtr;
@ -27,6 +28,7 @@ use super::util::{VST3_MIDI_CHANNELS, VST3_MIDI_PARAMS_END};
use super::view::WrapperView;
use crate::buffer::Buffer;
use crate::context::process::Transport;
use crate::midi::sysex::SysExMessage;
use crate::midi::{MidiConfig, NoteEvent};
use crate::params::ParamFlags;
use crate::plugin::{
@ -1235,6 +1237,27 @@ impl<P: Vst3Plugin> IAudioProcessor for Wrapper<P> {
event.type_id
),
}
} else if event.type_ == EventTypes::kDataEvent as u16
&& event.event.data.type_ == 0
{
// 0 = kMidiSysEx
let event = event.event.data;
assert!(!event.bytes.is_null());
let sysex_buffer =
std::slice::from_raw_parts(event.bytes, event.size as usize);
match NoteEvent::from_midi(timing, sysex_buffer) {
Ok(note_event) => {
process_events.push(ProcessEvent::NoteEvent {
timing,
event: note_event,
});
}
Err(_) => {
// `NoteEvent::from_midi` contains more detailed tracing
nih_debug_assert_failure!("Could not parse SysEx message");
}
};
}
}
}
@ -1732,6 +1755,29 @@ impl<P: Vst3Plugin> IAudioProcessor for Wrapper<P> {
value2: 0,
};
}
NoteEvent::MidiSysEx { timing: _, message }
if P::MIDI_OUTPUT >= MidiConfig::Basic =>
{
let mut sysex_buffer = Default::default();
let length = message.to_buffer(&mut sysex_buffer);
let sysex_buffer = sysex_buffer.borrow();
nih_debug_assert!(sysex_buffer.len() >= length);
let sysex_buffer = &sysex_buffer[..length];
vst3_event.type_ = EventTypes::kDataEvent as u16;
vst3_event.event.data = DataEvent {
size: sysex_buffer.len() as u32,
type_: 0, // kMidiSysEx
bytes: sysex_buffer.as_ptr(),
};
// NOTE: We need to have this call here while `sysex_buffer` is
// still in scope since the event contains pointers to it
let result = events.add_event(&mut vst3_event);
nih_debug_assert_eq!(result, kResultOk);
continue;
}
_ => {
nih_debug_assert_failure!(
"Invalid output event for the current MIDI_OUTPUT setting"