/// <summary>
/// Constructs a new IMAQ camera on the
/// specified camera link interface
/// </summary>
/// <param name="interfaceId">The interface name. Optionally followed by ::# identifying the port - 0 based</param>
public CameraLinkCamera(string interfaceId)
{
//Attach to interface
NIImaq.CheckError(NIImaq.imgInterfaceOpen(interfaceId, out _ifid));
//Open session
NIImaq.CheckError(NIImaq.imgSessionOpen(_ifid, out _sid));
//Get image dimensions
NIImaq.CheckError(NIImaq.imgGetAttribute(_sid, ImaqAttribute.IMG_ATTR_ROI_WIDTH, out _width));
NIImaq.CheckError(NIImaq.imgGetAttribute(_sid, ImaqAttribute.IMG_ATTR_ROI_HEIGHT, out _height));
NIImaq.CheckError(NIImaq.imgGetAttribute(_sid, ImaqAttribute.IMG_ATTR_BYTESPERPIXEL, out _bytesPerPixel));
System.Diagnostics.Debug.WriteLine("Bytes per pixel {0}", _bytesPerPixel);
NIImaq.CheckError(NIImaq.imgGetAttribute(_sid, ImaqAttribute.IMG_ATTR_BITSPERPIXEL, out _bitsPerPixel));
if (_bytesPerPixel == 2 && _bitsPerPixel < 16)
{
_scaleFactor = 1;
_scaleFactor <<= (16 - (int)_bitsPerPixel);
}
else
{
_scaleFactor = 1;
}
System.Diagnostics.Debug.WriteLine("Bits per pixel {0}", _bitsPerPixel);
System.Diagnostics.Debug.WriteLine("Frame width: {0}", _width);
System.Diagnostics.Debug.WriteLine("Frame height: {0}", _height);
//Unfortunately there is now way (?) to nicely align the camera buffers on 4-byte boundary for ipp
//The user generated image wrappers will expect this however - so for now do NOT allow to
//start acquisition with a width which is non-dividable by 4!!
System.Diagnostics.Debug.Assert(Width % 4 == 0, "At the moment for memory alignment, the class requires an image width which is dividable by 4!!");
//We also only allow images with either 1 or 2 bytes per pixel!
if (BytesPerPixel < 1 || BytesPerPixel > 2)
{
System.Diagnostics.Debug.Assert(false, "Unknown pixel depth", "Currently a pixel depth of {0} bytes is not supported", BytesPerPixel);
}
}