boo/lib/audiodev/MIDIEncoder.cpp

#include "boo/audiodev/MIDIEncoder.hpp"
#include "MIDICommon.hpp"

namespace boo
{

template <class Sender>
void MIDIEncoder<Sender>::_sendMessage(const uint8_t* data, size_t len)
{
    if (data[0] == m_status)
        m_sender.send(data + 1, len - 1);
    else
    {
        if (data[0] & 0x80)
            m_status = data[0];
        m_sender.send(data, len);
    }
}

template <class Sender>
void MIDIEncoder<Sender>::_sendContinuedValue(uint32_t val)
{
    uint8_t send[3] = {};
    uint8_t* ptr = nullptr;
    if (val >= 0x4000)
    {
        ptr = &send[0];
        send[0] = 0x80 | ((val / 0x4000) & 0x7f);
        send[1] = 0x80;
        val &= 0x3fff;
    }

    if (val >= 0x80)
    {
        if (!ptr)
            ptr = &send[1];
        send[1] = 0x80 | ((val / 0x80) & 0x7f);
    }

    if (!ptr)
        ptr = &send[2];
    send[2] = val & 0x7f;

    m_sender.send(ptr, 3 - (ptr - send));
}

template <class Sender>
void MIDIEncoder<Sender>::noteOff(uint8_t chan, uint8_t key, uint8_t velocity)
{
    uint8_t cmd[3] = {uint8_t(int(Status::NoteOff) | (chan & 0xf)),
                      uint8_t(key & 0x7f), uint8_t(velocity & 0x7f)};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::noteOn(uint8_t chan, uint8_t key, uint8_t velocity)
{
    uint8_t cmd[3] = {uint8_t(int(Status::NoteOn) | (chan & 0xf)),
                      uint8_t(key & 0x7f), uint8_t(velocity & 0x7f)};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::notePressure(uint8_t chan, uint8_t key, uint8_t pressure)
{
    uint8_t cmd[3] = {uint8_t(int(Status::NotePressure) | (chan & 0xf)),
                      uint8_t(key & 0x7f), uint8_t(pressure & 0x7f)};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::controlChange(uint8_t chan, uint8_t control, uint8_t value)
{
    uint8_t cmd[3] = {uint8_t(int(Status::ControlChange) | (chan & 0xf)),
                      uint8_t(control & 0x7f), uint8_t(value & 0x7f)};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::programChange(uint8_t chan, uint8_t program)
{
    uint8_t cmd[2] = {uint8_t(int(Status::ProgramChange) | (chan & 0xf)),
                      uint8_t(program & 0x7f)};
    _sendMessage(cmd, 2);
}

template <class Sender>
void MIDIEncoder<Sender>::channelPressure(uint8_t chan, uint8_t pressure)
{
    uint8_t cmd[2] = {uint8_t(int(Status::ChannelPressure) | (chan & 0xf)),
                      uint8_t(pressure & 0x7f)};
    _sendMessage(cmd, 2);
}

template <class Sender>
void MIDIEncoder<Sender>::pitchBend(uint8_t chan, int16_t pitch)
{
    uint8_t cmd[3] = {uint8_t(int(Status::PitchBend) | (chan & 0xf)),
                      uint8_t((pitch % 128) & 0x7f), uint8_t((pitch / 128) & 0x7f)};
    _sendMessage(cmd, 3);
}


template <class Sender>
void MIDIEncoder<Sender>::allSoundOff(uint8_t chan)
{
    uint8_t cmd[3] = {uint8_t(int(Status::ControlChange) | (chan & 0xf)),
                      120, 0};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::resetAllControllers(uint8_t chan)
{
    uint8_t cmd[3] = {uint8_t(int(Status::ControlChange) | (chan & 0xf)),
                      121, 0};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::localControl(uint8_t chan, bool on)
{
    uint8_t cmd[3] = {uint8_t(int(Status::ControlChange) | (chan & 0xf)),
                      122, uint8_t(on ? 127 : 0)};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::allNotesOff(uint8_t chan)
{
    uint8_t cmd[3] = {uint8_t(int(Status::ControlChange) | (chan & 0xf)),
                      123, 0};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::omniMode(uint8_t chan, bool on)
{
    uint8_t cmd[3] = {uint8_t(int(Status::ControlChange) | (chan & 0xf)),
                      uint8_t(on ? 125 : 124), 0};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::polyMode(uint8_t chan, bool on)
{
    uint8_t cmd[3] = {uint8_t(int(Status::ControlChange) | (chan & 0xf)),
                      uint8_t(on ? 127 : 126), 0};
    _sendMessage(cmd, 3);
}


template <class Sender>
void MIDIEncoder<Sender>::sysex(const void* data, size_t len)
{
    uint8_t cmd = uint8_t(Status::SysEx);
    _sendMessage(&cmd, 1);
    _sendContinuedValue(len);
    m_sender.send(data, len);
    cmd = uint8_t(Status::SysExTerm);
    _sendMessage(&cmd, 1);
}

template <class Sender>
void MIDIEncoder<Sender>::timeCodeQuarterFrame(uint8_t message, uint8_t value)
{
    uint8_t cmd[2] = {uint8_t(int(Status::TimecodeQuarterFrame)),
                      uint8_t((message & 0x7 << 4) | (value & 0xf))};
    _sendMessage(cmd, 2);
}

template <class Sender>
void MIDIEncoder<Sender>::songPositionPointer(uint16_t pointer)
{
    uint8_t cmd[3] = {uint8_t(int(Status::SongPositionPointer)),
                      uint8_t((pointer % 128) & 0x7f), uint8_t((pointer / 128) & 0x7f)};
    _sendMessage(cmd, 3);
}

template <class Sender>
void MIDIEncoder<Sender>::songSelect(uint8_t song)
{
    uint8_t cmd[2] = {uint8_t(int(Status::TimecodeQuarterFrame)),
                      uint8_t(song & 0x7f)};
    _sendMessage(cmd, 2);
}

template <class Sender>
void MIDIEncoder<Sender>::tuneRequest()
{
    uint8_t cmd = uint8_t(Status::TuneRequest);
    _sendMessage(&cmd, 1);
}


template <class Sender>
void MIDIEncoder<Sender>::startSeq()
{
    uint8_t cmd = uint8_t(Status::Start);
    _sendMessage(&cmd, 1);
}

template <class Sender>
void MIDIEncoder<Sender>::continueSeq()
{
    uint8_t cmd = uint8_t(Status::Continue);
    _sendMessage(&cmd, 1);
}

template <class Sender>
void MIDIEncoder<Sender>::stopSeq()
{
    uint8_t cmd = uint8_t(Status::Stop);
    _sendMessage(&cmd, 1);
}


template <class Sender>
void MIDIEncoder<Sender>::reset()
{
    uint8_t cmd = uint8_t(Status::Reset);
    _sendMessage(&cmd, 1);
}

template class MIDIEncoder<IMIDIOut>;
template class MIDIEncoder<IMIDIInOut>;

}