public bool GetExposure(ref byte[] imgdata)
{
if (imgdata == null)
{
var mem_len = QhyCcdDll.GetQHYCCDMemLength(_handle);
imgdata = new byte[mem_len];
}
if (_useLive)
{
var res = QhyCcdDll.GetQHYCCDLiveFrame(_handle, ref _width, ref _height, ref _bpp, ref _channels, imgdata);
if (res == uint.MaxValue)
{
return(false);
}
else if (res == 0)
{
return(true);
}
else
{
throw new Exception($"Unknown error in GetQHYCCDLiveFrame: {res}");
}
}
else
{
Check(QhyCcdDll.GetQHYCCDSingleFrame(_handle, ref _width, ref _height, ref _bpp, ref _channels, imgdata));
ExpSingleFrame();
return(true);
}
}
public static string CameraName(int index)
{
var builder = new StringBuilder(512);
Check(QhyCcdDll.GetQHYCCDId(index, builder));
return(builder.ToString());
}
public void StartExposure()
{
if (_useLive)
{
Check(QhyCcdDll.BeginQHYCCDLive(_handle));
}
else
{
ExpSingleFrame();
}
}
private void ExpSingleFrame()
{
var res = QhyCcdDll.ExpQHYCCDSingleFrame(_handle);
if (res == 0x2001)
{
// QHYCCD_READ_DIRECTLY = 0x2001
return;
}
Check(res);
}
public void StopExposure()
{
if (_useLive)
{
Check(QhyCcdDll.StopQHYCCDLive(_handle));
}
else
{
Check(QhyCcdDll.CancelQHYCCDExposing(_handle));
}
}
private void Init()
{
Check(QhyCcdDll.SetQHYCCDStreamMode(_handle, _useLive ? 1U : 0U)); // 0 == single, 1 == stream
Check(QhyCcdDll.InitQHYCCD(_handle));
Check(QhyCcdDll.GetQHYCCDChipInfo(_handle, ref _chipWidth, ref _chipHeight, ref _width, ref _height, ref _pixelWidth, ref _pixelHeight, ref _bpp));
Console.WriteLine($"chip name: {_name}, chip width: {_chipWidth}, chip height: {_chipHeight}, image width: {_width}, image height: {_height}, pixel width: {_pixelWidth}, pixel height: {_pixelHeight}, bits per pixel: {_bpp}");
Check(QhyCcdDll.IsQHYCCDControlAvailable(_handle, CONTROL_ID.CONTROL_TRANSFERBIT));
Check(QhyCcdDll.SetQHYCCDBitsMode(_handle, 16));
_bpp = 16;
Check(QhyCcdDll.SetQHYCCDBinMode(_handle, 1, 1));
Check(QhyCcdDll.SetQHYCCDResolution(_handle, 0, 0, _width, _height));
}
public QhyCcd(bool useLive, int index)
{
var num = NumCameras();
if (index >= num)
{
throw new Exception($"Camera index out of range: {index} >= {num}");
}
var builder = new StringBuilder(512);
Check(QhyCcdDll.GetQHYCCDId(index, builder));
_name = builder.ToString();
_handle = QhyCcdDll.OpenQHYCCD(builder);
_useLive = useLive;
Init();
_controls = ((CONTROL_ID[])Enum.GetValues(typeof(CONTROL_ID))).Select(x => Control.Make(_handle, x)).Where(x => x != null).ToArray();
}
public static uint NumCameras() => QhyCcdDll.ScanQHYCCD();
static QhyCcd()
{
Check(QhyCcdDll.InitQHYCCDResource());
}
private Control(IntPtr cameraHandle, CONTROL_ID id)
{
_cameraHandle = cameraHandle;
_id = id;
QhyCcdDll.GetQHYCCDParamMinMaxStep(cameraHandle, id, ref _min, ref _max, ref _step);
}
public void Dispose() => Check(QhyCcdDll.CloseQHYCCD(_handle));