private static unsafe void SoundCallbackPlaying(IntPtr hwi, uint uMsg, SoundWrapper dwInstance, uint dwParam1, uint dwParam2)
{
if (uMsg == WOM_DONE)
{
WAVEHDR *bufptr = (WAVEHDR *)dwParam1;
short[] data = new short[dwInstance.bufferLengthBytes / 2];
dwInstance.OnNewDataRequested(data);
Marshal.Copy(data, 0, bufptr->lpData, (int)(dwInstance.bufferLengthBytes / 2));
if (!dwInstance.finishing)
{
uint retval, retval2, retval3;
lock (dwInstance.locker)
{
retval = waveOutUnprepareHeader(dwInstance.waveHandle, ref *bufptr, 32);
retval2 = waveOutPrepareHeader(dwInstance.waveHandle, ref *bufptr, 32);
retval3 = waveOutWrite(dwInstance.waveHandle, ref *bufptr, 32);
}
if (retval != 0 || retval2 != 0 || retval3 != 0)
{
System.Windows.Forms.MessageBox.Show(string.Format("error in WOM_DATA: {0} {1} {2}\n", retval, retval2, retval3));
}
}
}
}
private static unsafe void SoundCallbackRecording(IntPtr hwi, uint uMsg, SoundWrapper dwInstance, uint dwParam1, uint dwParam2)
{
if (uMsg == WIM_DATA)
{
WAVEHDR *bufptr = (WAVEHDR *)dwParam1;
short[] data = new short[dwInstance.bufferLengthBytes / 2];
Marshal.Copy(bufptr->lpData, data, 0, (int)(bufptr->dwBytesRecorded / 2));
if (!dwInstance.finishing)
{
uint retval, retval2, retval3;
lock (dwInstance.locker)
{
retval = waveInUnprepareHeader(dwInstance.waveHandle, ref *bufptr, 32);
retval2 = waveInPrepareHeader(dwInstance.waveHandle, ref *bufptr, 32);
retval3 = waveInAddBuffer(dwInstance.waveHandle, ref *bufptr, 32);
}
if (retval != 0 || retval2 != 0 || retval3 != 0)
{
System.Windows.Forms.MessageBox.Show(string.Format("error in WIM_DATA: {0} {1} {2}\n", retval, retval2, retval3));
}
}
dwInstance.OnNewDataPresent(data);
}
}
private static extern uint waveOutOpen(ref IntPtr phwi, uint deviceID, ref WAVEFORMATEX wfx, SoundCallbackDelegate dwCallback, SoundWrapper dwInstance, uint dwFlags);