C++ (Cpp) MIDI_GET_STATUS_FROM_DATA Examples

Example #1

static void midijoin_process(NativePluginHandle handle, float** inBuffer, float** outBuffer, uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)
{
    const NativeHostDescriptor* const host = handlePtr->host;
    NativeMidiEvent tmpEvent;

    for (uint32_t i=0; i < midiEventCount; ++i)
    {
        const NativeMidiEvent* const midiEvent = &midiEvents[i];

        if (midiEvent->port >= MAX_MIDI_CHANNELS)
            continue;

        const uint8_t status = (uint8_t)MIDI_GET_STATUS_FROM_DATA(midiEvent->data);

        tmpEvent.port    = 0;
        tmpEvent.time    = midiEvent->time;
        tmpEvent.data[0] = (uint8_t)(status | (midiEvent->port & MIDI_CHANNEL_BIT));
        tmpEvent.data[1] = midiEvent->data[1];
        tmpEvent.data[2] = midiEvent->data[2];
        tmpEvent.data[3] = midiEvent->data[3];
        tmpEvent.size    = midiEvent->size;

        host->write_midi_event(host->handle, &tmpEvent);
    }

    return;

    // unused
    (void)inBuffer;
    (void)outBuffer;
    (void)frames;
}

Example #2

File: midi-transpose.c Project: dmlloyd/Carla

static void midiTranspose_process(PluginHandle handle, float** inBuffer, float** outBuffer, uint32_t frames, uint32_t midiEventCount, const MidiEvent* midiEvents)
{
    HostDescriptor* const host = handlePtr->host;
    const int octaves = handlePtr->octaves;
    MidiEvent tmpEvent;

    for (uint32_t i=0; i < midiEventCount; ++i)
    {
        const MidiEvent* const midiEvent = &midiEvents[i];

        const uint8_t status = MIDI_GET_STATUS_FROM_DATA(midiEvent->data);

        if (status == MIDI_STATUS_NOTE_OFF || status == MIDI_STATUS_NOTE_ON)
        {
            int oldnote = midiEvent->data[1];
            int newnote = oldnote + octaves*12;

            if (newnote < 0 || newnote >= MAX_MIDI_NOTE)
                continue;

            tmpEvent.port    = midiEvent->port;
            tmpEvent.time    = midiEvent->time;
            tmpEvent.data[0] = midiEvent->data[0];
            tmpEvent.data[1] = newnote;
            tmpEvent.data[2] = midiEvent->data[2];
            tmpEvent.data[3] = midiEvent->data[3];
            tmpEvent.size    = midiEvent->size;

            host->write_midi_event(host->handle, &tmpEvent);
        }
        else
            host->write_midi_event(host->handle, midiEvent);
    }

    return;

    // unused
    (void)inBuffer;
    (void)outBuffer;
    (void)frames;
}