score-plugin-vst3/Vst3/MidiEvents.hpp

#pragma once
#include <Process/Dataflow/MidiSysexArena.hpp>
 
#include <libremidi/ump.hpp>
 
#include <pluginterfaces/vst/ivstevents.h>
 
#include <optional>
 
namespace vst3
{
inline std::optional<Steinberg::Vst::Event> toSysexEvent(
    const libremidi::ump& mess, Steinberg::int32 bus, Steinberg::int32 sampleOffset,
    Process::MidiSysexArena& arena, Process::MidiSysexArena::stream& stream) noexcept
{
  const auto bytes = arena.feed(stream, mess);
  if(bytes.empty())
    return std::nullopt;
 
  Steinberg::Vst::Event e{};
  e.busIndex = bus;
  e.sampleOffset = sampleOffset;
  e.ppqPosition = 0;
  e.flags = Steinberg::Vst::Event::kIsLive;
  e.type = Steinberg::Vst::Event::kDataEvent;
  e.data.type = Steinberg::Vst::DataEvent::kMidiSysEx;
  e.data.size = Steinberg::uint32(bytes.size());
  e.data.bytes = bytes.data();
  return e;
}
}