public override TargetFinder.UpdateState Update()
{
QCARWrapper.Instance.TargetFinderUpdate(this.mTargetFinderStatePtr);
this.mTargetFinderState = (TargetFinderState)Marshal.PtrToStructure(this.mTargetFinderStatePtr, typeof(TargetFinderState));
if (this.mTargetFinderState.ResultCount > 0)
{
IntPtr searchResultArray = Marshal.AllocHGlobal((int)(Marshal.SizeOf(typeof(InternalTargetSearchResult)) * this.mTargetFinderState.ResultCount));
if (QCARWrapper.Instance.TargetFinderGetResults(searchResultArray, this.mTargetFinderState.ResultCount) != 1)
{
Debug.LogError("TargetFinder: Could not retrieve new results!");
return(TargetFinder.UpdateState.UPDATE_NO_MATCH);
}
this.mNewResults = new List <TargetFinder.TargetSearchResult>();
for (int i = 0; i < this.mTargetFinderState.ResultCount; i++)
{
IntPtr ptr = new IntPtr(searchResultArray.ToInt32() + (i * Marshal.SizeOf(typeof(QCARManagerImpl.TrackableResultData))));
InternalTargetSearchResult result = (InternalTargetSearchResult)Marshal.PtrToStructure(ptr, typeof(InternalTargetSearchResult));
TargetFinder.TargetSearchResult item = new TargetFinder.TargetSearchResult {
TargetName = Marshal.PtrToStringAnsi(result.TargetNamePtr),
UniqueTargetId = Marshal.PtrToStringAnsi(result.UniqueTargetIdPtr),
TargetSize = result.TargetSize,
MetaData = Marshal.PtrToStringAnsi(result.MetaDataPtr),
TrackingRating = result.TrackingRating,
TargetSearchResultPtr = result.TargetSearchResultPtr
};
this.mNewResults.Add(item);
}
Marshal.FreeHGlobal(searchResultArray);
}
return(this.mTargetFinderState.UpdateState);
}
/// <summary>
/// Update cloud reco results
///
/// Clears and rebuilds the list of target search results with results found
/// since the last call to updateSearchResults().
/// Also refreshes the IsRequesting flag.
/// Returns the status code UPDATE_RESULTS_AVAILABLE if new search results have been found.
/// </summary>
public override UpdateState Update()
{
// update the TargetFinder internally to find new results.
QCARWrapper.Instance.TargetFinderUpdate(mTargetFinderStatePtr);
mTargetFinderState = (TargetFinderState)Marshal.PtrToStructure(mTargetFinderStatePtr, typeof(TargetFinderState));
if (mTargetFinderState.ResultCount > 0)
{
// there are new results, poll them from native and parse them.
IntPtr newResultsPtr = Marshal.AllocHGlobal(Marshal.SizeOf(
typeof(InternalTargetSearchResult)) * mTargetFinderState.ResultCount);
if (QCARWrapper.Instance.TargetFinderGetResults(newResultsPtr, mTargetFinderState.ResultCount) != 1)
{
Debug.LogError("TargetFinder: Could not retrieve new results!");
return(UpdateState.UPDATE_NO_MATCH);
}
mNewResults = new List <TargetSearchResult>();
for (int i = 0; i < mTargetFinderState.ResultCount; i++)
{
IntPtr resultPtr = new IntPtr(newResultsPtr.ToInt32() + i *
Marshal.SizeOf(typeof(QCARManagerImpl.TrackableResultData)));
InternalTargetSearchResult internalTargetSearchResult = (InternalTargetSearchResult)
Marshal.PtrToStructure(resultPtr, typeof(InternalTargetSearchResult));
// store the results in a nice format
mNewResults.Add(new TargetSearchResult
{
TargetName = Marshal.PtrToStringAnsi(internalTargetSearchResult.TargetNamePtr),
UniqueTargetId = Marshal.PtrToStringAnsi(internalTargetSearchResult.UniqueTargetIdPtr),
TargetSize = internalTargetSearchResult.TargetSize,
MetaData = Marshal.PtrToStringAnsi(internalTargetSearchResult.MetaDataPtr),
TrackingRating = internalTargetSearchResult.TrackingRating,
TargetSearchResultPtr = internalTargetSearchResult.TargetSearchResultPtr
});
}
Marshal.FreeHGlobal(newResultsPtr);
}
return(mTargetFinderState.UpdateState);
}
