Esempio n. 1
0
 /// <summary>
 /// Returns the number of bytes that can be read from this input stream without
 /// blocking.
 /// </summary>
 /// <remarks>
 /// Returns the number of bytes that can be read from this input stream without
 /// blocking. The <code>available</code> method of <code>InputStream</code>
 /// returns <code>0</code>. This method <B>should</B> be overridden by
 /// subclasses.
 /// </remarks>
 /// <returns>
 /// the number of bytes that can be read from this input stream without
 /// blocking.
 /// </returns>
 /// <exception>
 /// IOException
 /// if an I/O error occurs.
 /// </exception>
 /// <exception cref="System.IO.IOException"/>
 public override int Available()
 {
     if (!useWrap)
     {
         return(inStream.Available());
     }
     return(ofinish - ostart);
 }
Esempio n. 2
0
        private List <MidiTimestampPair> ReadMidiMessages(MidiCommandHeader midiCommandHeader, DataInputStream midiInputStream)
        {
            List <MidiTimestampPair> result = new List <MidiTimestampPair>();

            int status = -1;
            ByteArrayOutputStream sysexDataStream = null;
            int deltaTimeSum = midiCommandHeader.RtpHeader.Timestamp;

            while (midiInputStream.Available() > 0)
            {
                int deltaTime;
                if (midiCommandHeader.Z)
                {
                    deltaTime = ReadDeltaTime(midiInputStream);
                }
                else
                {
                    deltaTime = 0;
                }
                deltaTimeSum += deltaTime;

                byte midiOctet1          = (byte)midiInputStream.ReadByte();
                bool systemCommonMessage = (midiOctet1 & 0xF0) == 0xF0;
                int  possibleStatus      = midiOctet1 & 0xFF;
                if (systemCommonMessage)
                {
                    if (midiOctet1 == (byte)SysexMessage.SYSTEM_EXCLUSIVE)
                    {
                        sysexDataStream = new ByteArrayOutputStream();
                        sysexDataStream.Write(midiOctet1);
                        bool partial = ReadSysexData(midiInputStream, sysexDataStream);
                        if (!partial)
                        {
                            result.Add(new MidiTimestampPair(deltaTimeSum,
                                                             new SysexMessage(sysexDataStream.ToByteArray(), sysexDataStream.Size())));
                        }
                    }
                    else
                    if (midiOctet1 == (byte)SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE)
                    {
                        bool partial = ReadSysexData(midiInputStream, sysexDataStream);
                        if (!partial)
                        {
                            result.Add(new MidiTimestampPair(deltaTimeSum,
                                                             new SysexMessage(sysexDataStream.ToByteArray(), sysexDataStream.Size())));
                        }
                    }
                    else
                    if (midiOctet1 == (byte)0xF4)
                    {
                        sysexDataStream.Reset();
                    }
                    else
                    {
                        ShortMessage shortMessage = null;
                        switch (possibleStatus)
                        {
                        case ShortMessage.TUNE_REQUEST:
                        case ShortMessage.TIMING_CLOCK:
                        case ShortMessage.START:
                        case ShortMessage.STOP:
                        case ShortMessage.ACTIVE_SENSING:
                        case ShortMessage.SYSTEM_RESET:
                            status       = possibleStatus;
                            shortMessage = new ShortMessage((byte)(status & 0xFF));
                            break;

                        case ShortMessage.MIDI_TIME_CODE:
                        case ShortMessage.SONG_SELECT:
                            status       = possibleStatus;
                            shortMessage = new ShortMessage((byte)(status & 0xFF), (byte)midiInputStream.ReadByte());
                            break;

                        case ShortMessage.SONG_POSITION_POINTER:
                            status       = possibleStatus;
                            shortMessage = new ShortMessage((byte)(status & 0xFF), (byte)midiInputStream.ReadByte(),
                                                            (byte)midiInputStream.ReadByte());
                            break;

                        default:
                            Log.Error("RtpMidi", "Invalid Message-status: {}", possibleStatus);
                            break;
                        }
                        if (shortMessage != null)
                        {
                            result.Add(new MidiTimestampPair(deltaTimeSum, shortMessage));
                        }
                    }
                }
                else
                {
                    ShortMessage shortMessage = null;
                    switch (midiOctet1 & 0xF0)
                    {
                    case ShortMessage.NOTE_OFF:
                    case ShortMessage.NOTE_ON:
                    case ShortMessage.POLY_PRESSURE:
                    case ShortMessage.CONTROL_CHANGE:
                    case ShortMessage.PITCH_BEND:
                        status       = possibleStatus;
                        shortMessage = new ShortMessage((byte)(status & 0xFF), (byte)midiInputStream.ReadByte(),
                                                        (byte)midiInputStream.ReadByte());
                        break;

                    case ShortMessage.PROGRAM_CHANGE:
                    case ShortMessage.CHANNEL_PRESSURE:
                        status       = possibleStatus;
                        shortMessage = new ShortMessage((byte)(status & 0xFF), (byte)midiInputStream.ReadByte());
                        break;

                    default:
                        Log.Error("rtpMidi", "Invalid ShortMessage-status: {}", midiOctet1 & 0xF0);
                        break;
                    }
                    if (shortMessage != null)
                    {
                        result.Add(new MidiTimestampPair(deltaTimeSum, shortMessage));
                    }
                }
            }
            return(result);
        }
Esempio n. 3
0
        static void LoadResToCache()
        {
            string loon_default_font       = "lfcache";
            IsolatedStorageFile isoStorage = IsolatedStorageFile.GetUserStoreForApplication();

            if (!isoStorage.FileExists(loon_default_font))
            {
                IsolatedStorageFileStream outStream = isoStorage.CreateFile(loon_default_font);
                Stream gzip = null;
                try
                {
                    gzip = new GZipInputStream(XNAConfig.LoadStream(LSystem.FRAMEWORK_IMG_NAME + "font.zip"));
                    byte[] buffer = new byte[4096];
                    int    charsRead;
                    while ((charsRead = gzip.Read(buffer, 0, buffer.Length)) != 0)
                    {
                        outStream.Write(buffer, 0, charsRead);
                    }
                    outStream.Flush();
                    if (gzip != null)
                    {
                        gzip.Close();
                        gzip.Dispose();
                        gzip = null;
                    }
                    buffer = null;
                }
                catch (Exception)
                {
                    if (outStream != null)
                    {
                        outStream.Close();
                        outStream.Dispose();
                        outStream = null;
                    }
                    if (gzip != null)
                    {
                        gzip.Close();
                        gzip.Dispose();
                        gzip = null;
                    }
                    IsolatedStorageFile.GetUserStoreForApplication().DeleteFile(loon_default_font);
                }
                finally
                {
                    if (outStream != null)
                    {
                        outStream.Close();
                        outStream = null;
                    }
                }
            }
            Stream ins = null;

            try
            {
                ins = isoStorage.OpenFile(loon_default_font, FileMode.Open);
                DataInputStream resStream = new DataInputStream(ins);
                realsize  = resStream.ReadUnsignedByte();
                offy      = resStream.ReadByte();
                fontSpace = (realsize + offy) * 2;
                if (realsize > 0x10)
                {
                    fontSpace *= 2;
                }
                int    num        = resStream.ReadInt();
                int    num2       = resStream.ReadByte();
                byte[] bufferData = new byte[resStream.Available()];
                resStream.Read(bufferData);
                fontData = bufferData;
                if (resStream != null)
                {
                    resStream.Close();
                    resStream = null;
                }
            }
            catch (Exception)
            {
                fontData = null;
                if (ins != null)
                {
                    ins.Close();
                    ins.Dispose();
                    ins = null;
                }
                LoadResToMemory();
            }
            finally
            {
                if (ins != null)
                {
                    ins.Close();
                    ins.Dispose();
                    ins = null;
                }
            }
        }