Пример #1
0
void MidiFile::writeEvent(const MidiEvent& event)
      {
      switch(event.type()) {
            case ME_NOTEON:
                  writeStatus(ME_NOTEON, event.channel());
                  put(event.pitch());
                  put(event.velo());
                  break;

            case ME_NOTEOFF:
                  writeStatus(ME_NOTEOFF, event.channel());
                  put(event.pitch());
                  put(event.velo());
                  break;

            case ME_CONTROLLER:
                  switch(event.controller()) {
                        case CTRL_PROGRAM:
                              writeStatus(ME_PROGRAM, event.channel());
                              put(event.value() & 0x7f);
                              break;
                        case CTRL_PITCH:
                              {
                              writeStatus(ME_PITCHBEND, event.channel());
                              int v = event.value() + 8192;
                              put(v & 0x7f);
                              put((v >> 7) & 0x7f);
                              }
                              break;
                        case CTRL_PRESS:
                              writeStatus(ME_AFTERTOUCH, event.channel());
                              put(event.value() & 0x7f);
                              break;
                        default:
                              writeStatus(ME_CONTROLLER, event.channel());
                              put(event.controller());
                              put(event.value() & 0x7f);
                              break;
                        }
                  break;

            case ME_META:
                  put(ME_META);
                  put(event.metaType());
                  putvl(event.len());
                  write(event.edata(), event.len());
                  resetRunningStatus();     // really ?!
                  break;

            case ME_SYSEX:
                  put(ME_SYSEX);
                  putvl(event.len() + 1);  // including 0xf7
                  write(event.edata(), event.len());
                  put(ME_ENDSYSEX);
                  resetRunningStatus();
                  break;
            }
      }