public MagicLeapProvider()
{
// ARFoundation often beats XRManagement to the instantiation so often times the MagicLeapPrivileges
// class will not be available to get privileges from. Because of this the class is acquired here.
MagicLeapPrivileges.Initialize();
m_PerceptionHandle = PerceptionHandle.Acquire();
if (s_NativeProviderPtr == IntPtr.Zero)
{
s_NativeProviderPtr = Native.Construct();
}
if (RequestPrivilegesIfNecessary())
{
if (s_NativeTrackerCreationJobHandle.Equals(default(JobHandle)))
{
RcoApi.Retain(s_NativeProviderPtr);
s_NativeTrackerCreationJobHandle = new CreateNativeImageTrackerJob {
nativeProvider = s_NativeProviderPtr
}.Schedule();
}
}
else
{
LogWarning($"Could not start the image tracking subsystem because privileges were denied.");
}
}
unsafe void DeserializeImageDatabaseFile(XRReferenceImageLibrary serializedLibrary)
{
var libraryPath = MagicLeapImageTrackingSubsystem.GetDatabaseFilePathFromLibrary(serializedLibrary);
if (!File.Exists(libraryPath))
{
throw new ArgumentException($"Serialized Image Tracking Library at '{libraryPath}' doesn't exist.");
}
var bytes = File.ReadAllBytes(libraryPath);
if (bytes.Length < sizeof(ulong))
{
throw new ArgumentException($"Serialized Image Tracking Library at '{libraryPath}' has no image data within it.");
}
var magicBytes = BitConverter.ToUInt64(bytes, 0);
var byteOffset = sizeof(ulong);
if (magicBytes != kMagicBytes)
{
throw new ArgumentException($"Serialized Image Tracking Library at '{libraryPath}' is not a valid image database file.");
}
for (int i = 0; i < serializedLibrary.count; ++i)
{
var referenceImage = serializedLibrary[i];
var imageHandle = MagicLeapImageTrackingSubsystem.Native.InvalidHandle;
var widthInPixels = BitConverter.ToInt32(bytes, byteOffset);
byteOffset += sizeof(int);
var heightInPixels = BitConverter.ToInt32(bytes, byteOffset);
byteOffset += sizeof(int);
// Retain in case we destroy before the images have been processed
RcoApi.Retain(m_NativePtr);
RcoApi.Retain(m_NativeProviderPtr);
fixed(byte *texturePtr = &bytes[byteOffset])
{
var grayscaleImage = new NativeArray <byte>(widthInPixels * heightInPixels, Allocator.Persistent);
NativeArray <byte> .Copy(bytes, byteOffset, grayscaleImage, 0, widthInPixels *heightInPixels);
new AddImageJob
{
nativeProvider = m_NativeProviderPtr,
database = m_NativePtr,
managedReferenceImage = new ManagedReferenceImage(referenceImage),
grayscaleImage = grayscaleImage,
width = widthInPixels,
height = heightInPixels,
name = new NativeArray <byte>(Encoding.UTF8.GetBytes(referenceImage.name + "\0"), Allocator.Persistent)
}.Schedule(m_CreateAssociatedNativeTrackerJobHandle);
}
byteOffset += widthInPixels * heightInPixels;
}
}
public MagicLeapProvider()
{
m_PerceptionHandle = PerceptionHandle.Acquire();
if (s_NativeProviderPtr == IntPtr.Zero)
{
s_NativeProviderPtr = Native.Construct();
}
if (RequestPrivilegesIfNecessary())
{
if (s_NativeTrackerCreationJobHandle.Equals(default(JobHandle)))
{
RcoApi.Retain(s_NativeProviderPtr);
s_NativeTrackerCreationJobHandle = new CreateNativeImageTrackerJob {
nativeProvider = s_NativeProviderPtr
}.Schedule();
}
}
else
{
LogWarning($"Could not start the image tracking subsystem because privileges were denied.");
}
}
protected override JobHandle ScheduleAddImageJobImpl(
NativeSlice <byte> imageBytes,
Vector2Int sizeInPixels,
TextureFormat format,
XRReferenceImage referenceImage,
JobHandle inputDeps)
{
if (m_NativeProviderPtr != MagicLeapImageTrackingSubsystem.nativeProviderPtr)
{
throw new InvalidOperationException($"Attempted to modify dead image library. The native provider that created this library doesn't exist and the native resource for this library has been released. Dispose this object.");
}
var grayscaleImage = new NativeArray <byte>(
sizeInPixels.x * sizeInPixels.y,
Allocator.Persistent,
NativeArrayOptions.UninitializedMemory);
var jobDependencies = JobHandle.CombineDependencies(m_CreateAssociatedNativeTrackerJobHandle, inputDeps);
var conversionHandle = ConversionJob.Schedule(imageBytes, sizeInPixels, format, grayscaleImage, jobDependencies);
// Retain in case we destroy before the images have been processed
RcoApi.Retain(m_NativePtr);
RcoApi.Retain(m_NativeProviderPtr);
return(new AddImageJob
{
nativeProvider = m_NativeProviderPtr,
database = m_NativePtr,
managedReferenceImage = new ManagedReferenceImage(referenceImage),
grayscaleImage = grayscaleImage,
width = sizeInPixels.x,
height = sizeInPixels.y,
name = new NativeArray <byte>(Encoding.UTF8.GetBytes(referenceImage.name + "\0"), Allocator.Persistent),
}.Schedule(conversionHandle));
}