private async Task _tf_DoWork(Object sender, DoWorkEventArgs e)
{
Classes.HT16K33AnimatorAction action = (Classes.HT16K33AnimatorAction)e.Argument;
try {
do
{
foreach (Classes.HT16K33AnimatorActionFrame frame in action.Frames)
{
if (!_ezb.IsConnected)
{
return;
}
_ht.UpdateLEDs(frame.Matrix);
await Task.Delay(frame.PauseTimeMS);
if (_tf.CancellationPending)
{
return;
}
}
} while (action.Repeats && !_tf.CancellationPending);
} catch (Exception ex) {
_ezb.Log(false, "Error in thread worker of HT16K33 Animator: {0}", ex);
}
}
/// <summary>
/// Stream raw audio data to the EZ-B v4's speakers.
/// 0 is silent, 100 is normal, 200 is 2x gain, 300 is 3x gain, etc.
/// The audio must be RAW 8 Bit at 18 KHZ Sample Rate
/// </summary>
public async Task PlayData(Stream ms, decimal volume, int[] progressPositions, int playFromSample)
{
await Stop();
if (!_ezb.IsConnected)
{
return;
}
if (_ezb.EZBType != EZB.EZ_B_Type_Enum.ezb4)
{
_ezb.Log(false, "This feature is only available for EZ-B v4");
return;
}
if (_ms != null)
{
_ms.Dispose();
}
_ms = new MemoryStream();
ms.CopyTo(_ms);
byte[] bTmp = new byte[PREBUFFER_SIZE];
_ms.Write(bTmp, 0, bTmp.Length);
_playFromSample = playFromSample;
_ms.Position = playFromSample;
_progressPositions = progressPositions;
Volume = volume;
_threadAudio.RunWorkerAsync();
}
/// <summary>
/// Set the clock speed of the i2c interface
/// </summary>
public void SetClockSpeed(UInt32 rate)
{
if (_ezb.EZBType != EZB.EZ_B_Type_Enum.ezb4)
{
return;
}
_ezb.Log(false, "Setting i2c rate: {0}", rate);
List <Byte> b = new List <byte>();
b.Add((byte)EZB.CmdEZBv4Enum.CmdV4I2CClockSpeed);
b.AddRange(BitConverter.GetBytes(rate));
_ezb.sendCommand(EZB.CommandEnum.CmdEZBv4, b.ToArray());
}
private async Task _worker_DoWork(Object sender, DoWorkEventArgs e)
{
List <byte> bufferImage = new List <byte>();
byte[] bufferTmp = new byte[BUFFER_SIZE];
try {
if (OnStart != null)
{
OnStart();
}
_settingsToSend.Add((byte)CameraSettingsEnum.START);
while (!_worker.CancellationPending)
{
if (_settingsToSend.Count > 0)
{
await _tcpClient.Send(_settingsToSend.ToArray());
_settingsToSend.Clear();
}
bufferImage.AddRange(await _tcpClient.ReadBytes(BUFFER_SIZE));
int foundStart = Functions.IndexOf(bufferImage.ToArray(), 0, TAG_EZIMAGE);
if (foundStart == -1)
{
continue;
}
if (foundStart > 0)
{
bufferImage.RemoveRange(0, foundStart);
}
if (bufferImage.Count < TAG_EZIMAGE.Length + sizeof(UInt32))
{
continue;
}
int imageSize = (int)BitConverter.ToUInt32(bufferImage.GetRange(TAG_EZIMAGE.Length, sizeof(UInt32)).ToArray(), 0);
if (bufferImage.Count <= imageSize + TAG_EZIMAGE.Length + sizeof(UInt32))
{
continue;
}
bufferImage.RemoveRange(0, TAG_EZIMAGE.Length + sizeof(UInt32));
_imageSize = imageSize;
try {
if (OnImageDataReady != null)
{
OnImageDataReady(bufferImage.GetRange(0, imageSize).ToArray());
}
} catch (Exception ex) {
_ezb.Log(false, "ezbv4 camera image render error: {0}", ex);
}
bufferImage.RemoveRange(0, imageSize);
}
await _tcpClient.Send((byte)CameraSettingsEnum.STOP);
_tcpClient.Disconnect();
} catch (Exception ex) {
_ezb.Log(false, "EZ-B v4 Camera Error: {0}", ex);
} finally {
if (OnStop != null)
{
OnStop();
}
}
}