/// <summary>
/// Configures the camera setting up required buffers.
/// Allows separation of this time-intensive task from
/// acquisition start.
/// </summary>
/// <param name="bufferCount">The number of frames requested as buffer</param>
public void Configure(uint bufferCount)
{
//set up ring buffer pointers
_ringBuffer = new IntPtr[bufferCount];
//create buffer list
NIImaq.CheckError(NIImaq.imgCreateBufList(bufferCount, out _bufId));
//compute required buffer size
uint bufSize = _width * _height * BytesPerPixel;
//if this is a 16bit acquisition we pre-allocate an internal buffer
//to allow us handing out 8bit images instead
_imgDownsize = new Image16((int)Width, (int)Height);
//Create our camera buffers and set up the buffer list
//We set the list up as a ring buffer which means that the command
//is NEXT for each buffer except the last one, where it will be loop
for (uint i = 0; i < bufferCount; i++)
{
//Let imaq obtain the buffer memory
NIImaq.CheckError(NIImaq.imgCreateBuffer(_sid, Buffer_Location.IMG_HOST_FRAME, bufSize, out _ringBuffer[i]));
//assign buffer to our buffer list
NIImaq.CheckError(NIImaq.imgSetBufferElement2(_bufId, i, BlItemType.IMG_BUFF_ADDRESS, _ringBuffer[i]));
//tell the list about our buffer size
NIImaq.CheckError(NIImaq.imgSetBufferElement2(_bufId, i, BlItemType.IMG_BUFF_SIZE, bufSize));
//Set the appropriate buffer command
var bufCmd = i < (bufferCount - 1) ? BuffCommands.IMG_CMD_NEXT : BuffCommands.IMG_CMD_LOOP;
NIImaq.CheckError(NIImaq.imgSetBufferElement2(_bufId, i, BlItemType.IMG_BUFF_COMMAND, bufCmd));
}
//lock buffer list (supposed to be obsolote but example still does it...)
NIImaq.CheckError(NIImaq.imgMemLock(_bufId));
//configure the session to use this buffer list
NIImaq.CheckError(NIImaq.imgSessionConfigure(_sid, _bufId));
_configured = true;
}
