示例#1
0
文件: Form1.cs 项目: HaKDMoDz/geff
        public void OpenMidiFile(string fileName)
        {
            if (!File.Exists(fileName))
            {
                Form1_Resize(null, null);
                return;
            }

            //NAudio.Midi.MidiFile midiFile = new MidiFile(@"D:\Libraries\Musics\Midi\beethoven-pour-elise.mid");
            //flourish
            //town
            MidiFile midiFile = new MidiFile(fileName);
            string part = String.Empty;
            TimeSignatureEvent lastTimeSignature = null;// new TimeSignatureEvent(4,4,24,32,

            List<NoteEvent> listNote = new List<NoteEvent>();

            Dictionary<float, string> dicNoteType = new Dictionary<float, string>();

            //dicNoteType.Add(1.75f * 4f, "Ronde double pointée");
            //dicNoteType.Add(1.5f * 4f, "Ronde pointée");
            dicNoteType.Add(4f, "Ronde");

            dicNoteType.Add(1.75f * 2f, "Blanche double pointée");
            dicNoteType.Add(1.5f * 2f, "Blanche pointée");
            dicNoteType.Add(2f, "Blanche");

            dicNoteType.Add(1.75f * 1f, "Noire double pointée");
            dicNoteType.Add(1.5f * 1f, "Noire pointée");
            dicNoteType.Add(1f, "Noire");

            dicNoteType.Add(1.75f * 0.5f, "Croche double pointée");
            dicNoteType.Add(1.5f * 0.5f, "Croche pointée");
            dicNoteType.Add(0.5f, "Croche");

            dicNoteType.Add(1.75f * 0.25f, "Double croche double pointée");
            dicNoteType.Add(1.5f * 0.25f, "Double croche pointée");
            dicNoteType.Add(0.25f, "Double croche");

            dicNoteType.Add(1.75f * 0.125f, "Triple croche double pointée");
            dicNoteType.Add(1.5f * 0.125f, "Triple croche pointée");
            dicNoteType.Add(0.125f, "Triple croche");

            dicNoteType.Add(1.75f * 0.0625f, "Quadruple croche double pointée");
            dicNoteType.Add(1.5f * 0.0625f, "Quadruple croche pointée");
            dicNoteType.Add(0.0625f, "Quadruple croche");

            music = new Music();
            music.ListChanel = new List<Channel>();
            Measure curMeasure = null;
            bool hasNote = false;
            StringBuilder partition = new StringBuilder();

            if (midiFile != null)
            {
                part += String.Format(" [ DeltaTicksPerQuarterNote : {0} ] ", midiFile.DeltaTicksPerQuarterNote);

                for (int i = 0; i < midiFile.Tracks; i++)
                {
                    Channel currentChannel = null;
                    currentChannel = new Channel();
                    hasNote = false;

                    partition.AppendLine();

                    foreach (MidiEvent midiEvent in midiFile.Events[i])
                    {
                        NoteOnEvent noteEvent = midiEvent as NoteOnEvent;

                        partition.AppendLine();

                        if (midiEvent is TimeSignatureEvent)
                        {
                            lastTimeSignature = midiEvent as TimeSignatureEvent;
                            //part += String.Format(" [ {0} ] ", midiEvent.ToString());
                            partition.AppendLine(String.Format(" [ {0} ] ", midiEvent.ToString()));
                        }
                        else if (noteEvent != null && noteEvent.CommandCode == MidiCommandCode.NoteOn && noteEvent.Velocity > 0)
                        {
                            int noteLength = 1;
                            noteLength = noteEvent.NoteLength;

                            partition.AppendLine(String.Format(" [ AbsoluteTime {0} #  DeltaTime {1} # NoteName {2} # NoteNumber {3} # NoteLength {4}  # Channel {5}]  ", noteEvent.AbsoluteTime, noteEvent.DeltaTime, noteEvent.NoteName, noteEvent.NoteNumber, noteLength, noteEvent.Channel));

                            float typeNote = (float)noteLength / (float)midiFile.DeltaTicksPerQuarterNote;

                            string typeNoteString = String.Empty;

                            if (dicNoteType.ContainsKey(typeNote))
                                typeNoteString = dicNoteType[typeNote];

                            partition.AppendLine(String.Format(" OFF :: {0} :: {1}", typeNote, typeNoteString));

                            listNote.Add(noteEvent);

                            float measureLenght = (float)lastTimeSignature.Numerator * 4f / (float)lastTimeSignature.No32ndNotesInQuarterNote * (float)midiFile.DeltaTicksPerQuarterNote;

                            Note newNote = new Note();
                            newNote.NoteLength = noteEvent.NoteLength;
                            newNote.NoteName = noteEvent.NoteName;
                            newNote.NoteNumber = noteEvent.NoteNumber;
                            newNote.AbsoluteTime = noteEvent.AbsoluteTime;

                            curMeasure = currentChannel.FindMeasure(noteEvent.AbsoluteTime);

                            if (curMeasure == null)
                            {
                                int nbPrevMeasure = (int)(noteEvent.AbsoluteTime / measureLenght);

                                curMeasure = new Measure(nbPrevMeasure * measureLenght, measureLenght);
                                currentChannel.AddMeasure(curMeasure);
                            }

                            curMeasure.AddNote(newNote);
                            hasNote = true;
                        }
                        else
                        {
                            partition.AppendLine(String.Format(" [ {0} ] ", midiEvent.ToString()));
                        }
                    }

                    if (hasNote)
                    {
                        music.AddChannel(currentChannel);
                    }
                }
            }

            Form1_Resize(null, null);
        }
示例#2
0
文件: Channel.cs 项目: HaKDMoDz/geff
 public void AddMeasure(Measure measure)
 {
     this.ListMeasure.Add(measure);
     measure.NumMeasure = (int)(measure.MeasureStart / measure.MeasureLength + 1);
 }