C++ (Cpp) MIOS32_MIDI_SendSysEx Examples

Example #1

File: lc_sysex.c Project: gillspice/mios32

/////////////////////////////////////////////////////////////////////////////
// This function sends the SysEx header if merger disabled
// if force == 1, send the footer regardless of merger state
/////////////////////////////////////////////////////////////////////////////
s32 LC_SYSEX_SendResponse(u8 *buffer, u8 len)
{
  int i;
  u8 sysex_buffer[128]; // should be enough?
  int sysex_buffer_ix = 0;

  // send header
  for(i=0; i<sizeof(sysex_header); ++i)
    sysex_buffer[sysex_buffer_ix++] = sysex_header[i];

  // add SysEx ID
  sysex_buffer[sysex_buffer_ix++] = sysex_id;

  // send buffer content
  for(i=0; i<len; ++i)
    sysex_buffer[sysex_buffer_ix++] = buffer[i];

  // send footer
  sysex_buffer[sysex_buffer_ix++] = 0xf7;

  // finally send SysEx stream and return error status
  return MIOS32_MIDI_SendSysEx(DEFAULT, (u8 *)sysex_buffer, sysex_buffer_ix);
}

Example #2

File: app.c Project: glocklueng/MIOS32

/////////////////////////////////////////////////////////////////////////////
// This function parses an incoming sysex stream for MIOS32 commands
/////////////////////////////////////////////////////////////////////////////
s32 APP_SYSEX_Parser(mios32_midi_port_t port, u8 midi_in)
{
  // determine SysEx buffer
  int sysex_in = 0;

  switch( port ) {
  case USB0: sysex_in = SYSEX_BUFFER_IN_USB0; break;
  case USB1: sysex_in = SYSEX_BUFFER_IN_USB1; break;
  case UART0: sysex_in = SYSEX_BUFFER_IN_UART0; break;
  case UART1: sysex_in = SYSEX_BUFFER_IN_UART1; break;
  case OSC0: sysex_in = SYSEX_BUFFER_IN_OSC0; break;
  case OSC1: sysex_in = SYSEX_BUFFER_IN_OSC1; break;
  default:
    return -1; // not assigned
  }

  // store value into buffer, send when:
  //   o 0xf7 (end of stream) has been received
  //   o 0xf0 (start of stream) has been received although buffer isn't empty
  //   o buffer size has been exceeded
  // we check for (SYSEX_BUFFER_SIZE-1), so that we always have a free byte for F7
  u32 buffer_len = sysex_buffer_len[sysex_in];
  if( midi_in == 0xf7 || (midi_in == 0xf0 && buffer_len != 0) || buffer_len >= (SYSEX_BUFFER_SIZE-1) ) {

    if( midi_in == 0xf7 && buffer_len < SYSEX_BUFFER_SIZE ) // note: we always have a free byte for F7
      sysex_buffer[sysex_in][sysex_buffer_len[sysex_in]++] = midi_in;

    switch( port ) {
    case USB0:
      MIOS32_MIDI_SendSysEx(UART0, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      OSC_CLIENT_SendSysEx(0, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      break;
    case USB1:
      MIOS32_MIDI_SendSysEx(UART1, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      OSC_CLIENT_SendSysEx(1, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      break;

    case UART0:
      MIOS32_MIDI_SendSysEx(USB0, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      OSC_CLIENT_SendSysEx(2, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      break;
    case UART1:
      MIOS32_MIDI_SendSysEx(USB1, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      OSC_CLIENT_SendSysEx(3, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      break;

    case OSC0:
      MIOS32_MIDI_SendSysEx(USB0, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      MIOS32_MIDI_SendSysEx(UART0, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      break;
    case OSC1:
      MIOS32_MIDI_SendSysEx(USB1, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      MIOS32_MIDI_SendSysEx(UART1, sysex_buffer[sysex_in], sysex_buffer_len[sysex_in]);
      break;
    }

    // empty buffer
    sysex_buffer_len[sysex_in] = 0;

    // fill with next byte if buffer size hasn't been exceeded
    if( midi_in != 0xf7 )
      sysex_buffer[sysex_in][sysex_buffer_len[sysex_in]++] = midi_in;

  } else {
    // add to buffer
    sysex_buffer[sysex_in][sysex_buffer_len[sysex_in]++] = midi_in;
  }

  return 0; // no error
}