コード例 #1
0
        public byte[] ReadData(int Length)
        {
            byte[] Data   = new byte[Length];
            byte[] Header = { (byte)'S', (byte)(Length / 256), (byte)(Length & 255) };
            lock (FT245RLocker)
            {
                if (FT245R != null)
                {
                    try
                    {
                        uint Dummy = 0;
                        FT245R.CharReceived -= new EventHandler <EventArgs>(FT245R_CharReceived);
                        FT245R.Write(Header, 3, ref Dummy);


                        uint BytesRead = 0;
                        FT245R.Read(Data, ((uint)Length), ref BytesRead);


                        FT245R.CharReceived += new EventHandler <EventArgs>(FT245R_CharReceived);
                    }
                    catch { Close(); }
                }
            }
            return(Data);
        }
コード例 #2
0
 /// <summary>
 /// Sends a clear data buffer command to the Ledstrip controller
 /// </summary>
 public void ClearData()
 {
     lock (FT245RLocker)
     {
         if (FT245R != null)
         {
             try
             {
                 uint Dummy = 0;
                 FT245R.Write(new byte[] { (byte)'C' }, 1, ref Dummy);
             }
             catch { Close(); }
         }
     }
 }
コード例 #3
0
 /// <summary>
 /// Sends a display data command to the ledstrip controller.
 /// </summary>
 /// <param name="Length">The length of the data to be displayed.</param>
 public void DisplayData(int Length)
 {
     lock (FT245RLocker)
     {
         if (FT245R != null)
         {
             try
             {
                 uint Dummy = 0;
                 FT245R.Write(new byte[] { (byte)'O', (byte)(Length / 256), (byte)(Length & 255) }, 3, ref Dummy);
             }
             catch { Close(); }
         }
     }
 }
コード例 #4
0
 /// <summary>
 /// Sends the specified data to the ledstripn controller.
 /// </summary>
 /// <param name="Data">The data.</param>
 public void SetData(byte[] Data)
 {
     byte[] Header = { (byte)'R', (byte)(Data.Length / 256), (byte)(Data.Length & 255) };
     lock (FT245RLocker)
     {
         if (FT245R != null)
         {
             try
             {
                 uint Dummy = 0;
                 FT245R.Write(Header, 3, ref Dummy);
                 FT245R.Write(Data, Data.Length, ref Dummy);
             }
             catch { Close(); }
         }
     }
 }
コード例 #5
0
        /// <summary>
        /// Packs the specified data using a IFF like compression and send the data to the ledstrip controller.
        /// </summary>
        /// <param name="Data">The data.</param>
        public void SetPackedData(byte[] Data)
        {
            int DataPos = 0;

            //Calc number of bytes to pack. Truncate data to a length which is divideable by 3.
            int DataLength = Data.Length;

            if (DataLength % 3 != 0)
            {
                DataLength -= (DataLength % 3);
            }

            //Create array for packed data (I hope the calc für the max size of the packed data is correct)
            byte[] Packed    = new byte[(int)(DataLength + ((double)DataLength / 127) + 2)];
            int    PackedPos = 3;

            int  BlockStartPos = 0;
            byte BlockSize     = 0;

            while (DataPos < DataLength)
            {
                BlockStartPos       = PackedPos++;         //Store startpos of block
                Packed[PackedPos++] = Data[DataPos++];     //Get first 3 bytes
                Packed[PackedPos++] = Data[DataPos++];
                Packed[PackedPos++] = Data[DataPos++];
                BlockSize           = 1;

                if (DataPos >= DataLength)
                {
                    //reached the end of the data
                    Packed[BlockStartPos] = BlockSize; //Set the size of the block (1 triplet)
                }
                else
                {
                    //not yet the end of the data

                    //Check if the next bytes are the same as the first 3 bytes
                    if (Packed[BlockStartPos + 1] != Data[DataPos] || Packed[BlockStartPos + 2] != Data[DataPos + 1] || Packed[BlockStartPos + 3] != Data[DataPos + 2])
                    {
                        //Data is different, build block of org data

                        while (BlockSize < 127 && DataPos < DataLength && ((DataPos >= DataLength - 3) || (Data[DataPos] != Data[DataPos + 3] || Data[DataPos + 1] != Data[DataPos + 4] || Data[DataPos + 2] != Data[DataPos + 5])))
                        {
                            Packed[PackedPos++] = Data[DataPos++];      //Get next 3 bytes
                            Packed[PackedPos++] = Data[DataPos++];
                            Packed[PackedPos++] = Data[DataPos++];
                            BlockSize++;
                        }
                        Packed[BlockStartPos] = BlockSize; //Set the number of triplets for the block
                    }
                    else
                    {
                        //Data is the same, build block of packed data
                        while (BlockSize < 127 && DataPos < DataLength && Packed[BlockStartPos + 1] == Data[DataPos] && Packed[BlockStartPos + 2] == Data[DataPos + 1] && Packed[BlockStartPos + 3] == Data[DataPos + 2])
                        {
                            DataPos += 3;
                            BlockSize++;
                        }
                        Packed[BlockStartPos] = (byte)(BlockSize + 128); //Set the number of repetions for the block, add 128 to mark the packed data
                    }
                }
            }

            Packed[PackedPos++] = 0; //Add 0 byte to mark the end of the data

            byte[] Header = { (byte)'P', (byte)(PackedPos / 256), (byte)(PackedPos & 255) };
            lock (FT245RLocker)
            {
                if (FT245R != null)
                {
                    try
                    {
                        uint Dummy = 0;
                        FT245R.Write(Header, 3, ref Dummy);
                        FT245R.Write(Data, Data.Length, ref Dummy);
                    }
                    catch { Close(); }
                }
            }
        }