void XnSensorIRGenerator::OnResChanged()
{
// we calculate the size because the IR stream actually gives out a bigger buffer, but
// we want the buffer we return to be with the right size.
XnMapOutputMode outputMode;
GetMapOutputMode(outputMode);
XnUInt32 nPixels = outputMode.nXRes * outputMode.nYRes;
XnCropping cropping;
GetCropping(cropping);
if (cropping.bEnabled)
{
nPixels = cropping.nXSize * cropping.nYSize;
}
m_nBufferSize = nPixels * sizeof(XnIRPixel);
}
XnStatus XnSensorDepthGenerator::GetUserPosition(XnUInt32 nIndex, XnBoundingBox3D& Position)
{
XnStatus nRetVal = XN_STATUS_OK;
// get
XnDepthAGCBin bin;
bin.nBin = nIndex;
nRetVal = m_pSensor->GetProperty(m_strModule, XN_STREAM_PROPERTY_AGC_BIN, XN_PACK_GENERAL_BUFFER(bin));
XN_IS_STATUS_OK(nRetVal);
XnMapOutputMode MapOutputMode;
nRetVal = GetMapOutputMode(MapOutputMode);
XN_IS_STATUS_OK(nRetVal);
// we only support Z position for now
Position.LeftBottomNear.Z = bin.nMin;
Position.RightTopFar.Z = bin.nMax;
Position.LeftBottomNear.X = 0;
Position.RightTopFar.X = MapOutputMode.nXRes - 1;
Position.LeftBottomNear.Y = 0;
Position.RightTopFar.Y = MapOutputMode.nYRes - 1;
return (XN_STATUS_OK);
}
XnUInt32 XnSensorImageGenerator::FindSupportedInputFormat(XnUInt32* anAllowedInputFormats, XnUInt32 nAllowedInputFormats)
{
// first check if current one is allowed
XnUInt64 nCurrentInputFormat;
GetIntProperty(XN_STREAM_PROPERTY_INPUT_FORMAT, nCurrentInputFormat);
for (XnUInt32 i = 0; i < nAllowedInputFormats; ++i)
{
if (anAllowedInputFormats[i] == nCurrentInputFormat)
{
return (XnUInt32)nCurrentInputFormat;
}
}
// current one is not allowed. find a matching mode and take its input format
XnMapOutputMode outputMode;
GetMapOutputMode(outputMode);
// the order in the allowed input formats is the preferred one
for (XnUInt32 iInput = 0; iInput < nAllowedInputFormats; ++iInput)
{
// see if such a mode exists
for (XnUInt32 iMode = 0; iMode < m_nSupportedModesCount; ++iMode)
{
if (m_aSupportedModes[iMode].nInputFormat == anAllowedInputFormats[iInput] &&
m_aSupportedModes[iMode].OutputMode.nXRes == outputMode.nXRes &&
m_aSupportedModes[iMode].OutputMode.nYRes == outputMode.nYRes &&
m_aSupportedModes[iMode].OutputMode.nFPS == outputMode.nFPS)
{
return anAllowedInputFormats[iInput];
}
}
}
return INVALID_INPUT_FORMAT;
}