public bool GetAllCameraMetadataTags(IntPtr cameraMetadataHandle, List <CameraMetadataTag> resultList)
{
IntPtr ndkMetadataHandle = IntPtr.Zero;
ExternApi.ArImageMetadata_getNdkCameraMetadata(m_NativeSession.SessionHandle,
cameraMetadataHandle, ref ndkMetadataHandle);
IntPtr tagsHandle = IntPtr.Zero;
int tagsCount = 0;
NdkCameraStatus status = ExternApi.ACameraMetadata_getAllTags(ndkMetadataHandle, ref tagsCount, ref tagsHandle);
if (status != NdkCameraStatus.Ok)
{
ARDebug.LogErrorFormat("ACameraMetadata_getAllTags error with native camera error code: {0}",
status);
return(false);
}
for (int i = 0; i < tagsCount; i++)
{
resultList.Add((CameraMetadataTag)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <int>(tagsHandle, i),
typeof(int)));
}
return(true);
}
public bool GetAllCameraMetadataTags(
IntPtr cameraMetadataHandle, List <CameraMetadataTag> resultList)
{
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access camera metadata tags");
return(false);
}
IntPtr tagsHandle = IntPtr.Zero;
int tagsCount = 0;
ExternApi.ArImageMetadata_getAllKeys(
_nativeSession.SessionHandle, cameraMetadataHandle, ref tagsCount, ref tagsHandle);
if (tagsCount == 0 || tagsHandle == IntPtr.Zero)
{
ARDebug.LogError(
"ArImageMetadata_getAllKeys error with empty metadata keys list.");
return(false);
}
for (int i = 0; i < tagsCount; i++)
{
resultList.Add((CameraMetadataTag)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <int>(tagsHandle, i),
typeof(int)));
}
return(true);
}
public void CopyPoints(IntPtr pointCloudHandle, List <Vector4> points)
{
points.Clear();
IntPtr pointCloudNativeHandle = IntPtr.Zero;
int pointCloudSize = GetNumberOfPoints(pointCloudHandle);
ExternApi.ArPointCloud_getData(m_NativeApi.SessionHandle, pointCloudHandle, ref pointCloudNativeHandle);
MarshalingHelper.AddUnmanagedStructArrayToList <Vector4>(pointCloudNativeHandle,
pointCloudSize, points);
for (int i = 0; i < pointCloudSize; ++i)
{
// Negate z axis because points are returned in OpenGl space.
points[i] = new Vector4(points[i].x, points[i].y,
-points[i].z, points[i].w);
}
}
private bool _UpdateMostRecentApiPlanes()
{
IntPtr apiPlanesPtr = IntPtr.Zero;
int planeCount = 0;
if (TangoClientApi.TangoService_Experimental_getPlanes(ref apiPlanesPtr, ref planeCount).IsTangoFailure())
{
for (int i = 0; i < m_mostRecentApiPlanes.Count; i++)
{
ApiPlaneData planeData = m_mostRecentApiPlanes[i];
planeData.isValid = false;
m_mostRecentApiPlanes[i] = planeData;
}
return(true);
}
// The planes api is handling a COM reset, and the current state is not available. Leave the most recent
// Api planes collection unchanged.
if (apiPlanesPtr == null)
{
return(false);
}
// Marshal the most recent planes returned from the Api into m_mostRecentApiPlanes.
m_mostRecentApiPlanes.Clear();
MarshalingHelper.AddUnmanagedStructArrayToList <ApiPlaneData>(apiPlanesPtr, planeCount,
m_mostRecentApiPlanes);
if (TangoClientApi.TangoPlaneData_free(apiPlanesPtr, planeCount).IsTangoFailure())
{
ARDebug.LogErrorFormat("Failed to deallocate planes from the ARCore API.");
}
return(false);
}
public bool TryGetValues(IntPtr cameraMetadataHandle,
CameraMetadataTag tag, List <CameraMetadataValue> resultList)
{
IntPtr ndkMetadataHandle = IntPtr.Zero;
ExternApi.ArImageMetadata_getNdkCameraMetadata(m_NativeSession.SessionHandle,
cameraMetadataHandle, ref ndkMetadataHandle);
resultList.Clear();
NdkCameraMetadata entry = new NdkCameraMetadata();
NdkCameraStatus status = ExternApi.ACameraMetadata_getConstEntry(ndkMetadataHandle, tag, ref entry);
if (status != NdkCameraStatus.Ok)
{
ARDebug.LogErrorFormat("ACameraMetadata_getConstEntry error with native camera error code: {0}",
status);
return(false);
}
for (int i = 0; i < entry.Count; i++)
{
switch (entry.Type)
{
case NdkCameraMetadataType.Byte:
sbyte byteValue = (sbyte)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <sbyte>(entry.Value, i),
typeof(sbyte));
resultList.Add(new CameraMetadataValue(byteValue));
break;
case NdkCameraMetadataType.Int32:
int intValue = (int)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <int>(entry.Value, i),
typeof(int));
resultList.Add(new CameraMetadataValue(intValue));
break;
case NdkCameraMetadataType.Float:
float floatValue = (float)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <float>(entry.Value, i),
typeof(float));
resultList.Add(new CameraMetadataValue(floatValue));
break;
case NdkCameraMetadataType.Int64:
long longValue = (long)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <long>(entry.Value, i),
typeof(long));
resultList.Add(new CameraMetadataValue(longValue));
break;
case NdkCameraMetadataType.Double:
double doubleValue = (double)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <double>(entry.Value, i),
typeof(double));
resultList.Add(new CameraMetadataValue(doubleValue));
break;
case NdkCameraMetadataType.Rational:
CameraMetadataRational rationalValue = (CameraMetadataRational)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <CameraMetadataRational>(entry.Value, i),
typeof(CameraMetadataRational));
resultList.Add(new CameraMetadataValue(rationalValue));
break;
default:
return(false);
}
}
return(true);
}
public bool TryGetValues(IntPtr cameraMetadataHandle,
CameraMetadataTag tag, List <CameraMetadataValue> resultList)
{
resultList.Clear();
uint utag = (uint)tag;
ArCameraMetadata entry = new ArCameraMetadata();
ApiArStatus status =
ExternApi.ArImageMetadata_getConstEntry(_nativeSession.SessionHandle,
cameraMetadataHandle, utag,
ref entry);
if (status != ApiArStatus.Success)
{
ARDebug.LogErrorFormat(
"ArImageMetadata_getConstEntry error with native camera error code: {0}",
status);
return(false);
}
if (entry.Count > _maximumTagCountForWarning && !_warningTags.Contains((int)tag))
{
Debug.LogWarningFormat(
"TryGetValues for tag {0} has {1} values. Accessing tags with a large " +
"number of values may impede performance.", tag, entry.Count);
_warningTags.Add((int)tag);
}
for (int i = 0; i < entry.Count; i++)
{
switch (entry.Type)
{
case ArCameraMetadataType.Byte:
sbyte byteValue = (sbyte)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <sbyte>(entry.Value, i),
typeof(sbyte));
resultList.Add(new CameraMetadataValue(byteValue));
break;
case ArCameraMetadataType.Int32:
int intValue = (int)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <int>(entry.Value, i),
typeof(int));
resultList.Add(new CameraMetadataValue(intValue));
break;
case ArCameraMetadataType.Float:
float floatValue = (float)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <float>(entry.Value, i),
typeof(float));
resultList.Add(new CameraMetadataValue(floatValue));
break;
case ArCameraMetadataType.Int64:
long longValue = (long)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <long>(entry.Value, i),
typeof(long));
resultList.Add(new CameraMetadataValue(longValue));
break;
case ArCameraMetadataType.Double:
double doubleValue = (double)Marshal.PtrToStructure(
MarshalingHelper.GetPtrToUnmanagedArrayElement <double>(entry.Value, i),
typeof(double));
resultList.Add(new CameraMetadataValue(doubleValue));
break;
case ArCameraMetadataType.Rational:
CameraMetadataRational rationalValue =
(CameraMetadataRational)Marshal.PtrToStructure(
MarshalingHelper
.GetPtrToUnmanagedArrayElement <CameraMetadataRational>(
entry.Value, i),
typeof(CameraMetadataRational));
resultList.Add(new CameraMetadataValue(rationalValue));
break;
default:
return(false);
}
}
return(true);
}
