public void CreateSession(ARCoreSession sessionComponent)
{
sessionComponent.StartCoroutine(InstantPreviewManager.InitializeIfNeeded());
if (SessionComponent != null)
{
Debug.LogError("Multiple ARCore session components cannot exist in the scene. " +
"Destroying the newest.");
GameObject.Destroy(sessionComponent);
return;
}
SessionComponent = sessionComponent;
}
public void GetImageDimensions(IntPtr cameraConfigHandle, out int width, out int height)
{
width = 0;
height = 0;
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access ARCamera image dimensions");
return;
}
ExternApi.ArCameraConfig_getImageDimensions(
m_NativeSession.SessionHandle, cameraConfigHandle, ref width, ref height);
}
public CameraConfigDepthSensorUsages GetDepthSensorUsage(IntPtr cameraConfigHandle)
{
int depthSensorUsage = (int)CameraConfigDepthSensorUsages.DoNotUse;
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access ARCamera DepthSensorUsage");
return((CameraConfigDepthSensorUsages)depthSensorUsage);
}
ExternApi.ArCameraConfig_getDepthSensorUsage(
m_NativeSession.SessionHandle, cameraConfigHandle, ref depthSensorUsage);
return((CameraConfigDepthSensorUsages)depthSensorUsage);
}
public void GetFpsRange(IntPtr cameraConfigHandle, out int minFps, out int maxFps)
{
minFps = 0;
maxFps = 0;
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access ARCamera FpsRange");
return;
}
ExternApi.ArCameraConfig_getFpsRange(
m_NativeSession.SessionHandle, cameraConfigHandle, ref minFps, ref maxFps);
}
public LostTrackingReason GetLostTrackingReason(IntPtr cameraHandle)
{
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("determine tracking failure " +
"reasons");
return(LostTrackingReason.None);
}
ApiTrackingFailureReason apiTrackingFailureReason = ApiTrackingFailureReason.None;
ExternApi.ArCamera_getTrackingFailureReason(m_NativeSession.SessionHandle,
cameraHandle, ref apiTrackingFailureReason);
return(apiTrackingFailureReason.ToLostTrackingReason());
}
public ApiCameraConfigFacingDirection GetFacingDirection(IntPtr cameraConfigHandle)
{
ApiCameraConfigFacingDirection direction = ApiCameraConfigFacingDirection.Back;
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access ARCamera facing direction");
return(direction);
}
ExternApi.ArCameraConfig_getFacingDirection(
m_NativeSession.SessionHandle, cameraConfigHandle, ref direction);
return(direction);
}
public CameraConfig GetCameraConfig()
{
IntPtr cameraConfigHandle = m_NativeSession.CameraConfigApi.Create();
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access camera config");
return(new CameraConfig());
}
ExternApi.ArSession_getCameraConfig(m_NativeSession.SessionHandle, cameraConfigHandle);
CameraConfig currentCameraConfig = _CreateCameraConfig(cameraConfigHandle);
m_NativeSession.CameraConfigApi.Destroy(cameraConfigHandle);
return(currentCameraConfig);
}
private void _SetConfiguration(ARCoreSessionConfig config)
{
// There is no configuration to set.
if (config == null)
{
return;
}
// The configuration has not been updated.
if (m_CachedConfig != null && config.Equals(m_CachedConfig) &&
(config.AugmentedImageDatabase == null ||
!config.AugmentedImageDatabase.m_IsDirty) &&
!ExperimentManager.Instance.IsConfigurationDirty)
{
return;
}
if (InstantPreviewManager.IsProvidingPlatform)
{
if (config.LightEstimationMode != LightEstimationMode.Disabled)
{
InstantPreviewManager.LogLimitedSupportMessage("enable 'Light Estimation'");
config.LightEstimationMode = LightEstimationMode.Disabled;
}
if (config.AugmentedImageDatabase != null)
{
InstantPreviewManager.LogLimitedSupportMessage("enable 'Augmented Images'");
config.AugmentedImageDatabase = null;
}
if (config.AugmentedFaceMode == AugmentedFaceMode.Mesh)
{
InstantPreviewManager.LogLimitedSupportMessage("enable 'Augmented Faces'");
config.AugmentedFaceMode = AugmentedFaceMode.Disabled;
}
}
var prestoConfig = new ApiPrestoConfig(config);
ExternApi.ArPresto_setConfiguration(ref prestoConfig);
m_CachedConfig = ScriptableObject.CreateInstance <ARCoreSessionConfig>();
m_CachedConfig.CopyFrom(config);
}
private void _UpdateTextureIfNeeded()
{
// If running in editor, updates background texture from Instant Preview only.
Texture2D previewBackgroundTexture = BackgroundTexture;
if (InstantPreviewManager.UpdateBackgroundTextureIfNeeded(ref previewBackgroundTexture))
{
BackgroundTexture = previewBackgroundTexture;
return;
}
IntPtr frameHandle = IntPtr.Zero;
ExternApi.ArPresto_getFrame(ref frameHandle);
int backgroundTextureId = ExternApi.ArCoreUnity_getBackgroundTextureId();
if (frameHandle == IntPtr.Zero)
{
// This prevents using a texture that has not been filled out by ARCore.
return;
}
else if (backgroundTextureId == -1)
{
return;
}
else if (BackgroundTexture != null &&
BackgroundTexture.GetNativeTexturePtr().ToInt32() == backgroundTextureId)
{
return;
}
else if (BackgroundTexture == null)
{
// The Unity-cached size and format of the texture (0x0, ARGB) is not the
// actual format of the texture. This is okay because the texture is not
// accessed by pixels, it is accessed with UV coordinates.
BackgroundTexture = Texture2D.CreateExternalTexture(
0, 0, TextureFormat.ARGB32, false, false, new IntPtr(backgroundTextureId));
return;
}
BackgroundTexture.UpdateExternalTexture(new IntPtr(backgroundTextureId));
}
public AsyncTask <ApkAvailabilityStatus> CheckApkAvailability()
{
Action <ApkAvailabilityStatus> onComplete;
AsyncTask <ApkAvailabilityStatus> task =
new AsyncTask <ApkAvailabilityStatus>(out onComplete);
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("determine ARCore APK " +
"availability");
return(task);
}
ExternApi.ArPresto_checkApkAvailability(m_CheckApkAvailabilityResultCallback,
IntPtr.Zero);
m_PendingAvailabilityCheckCallbacks.Add(onComplete);
return(task);
}
public AsyncTask <ApkInstallationStatus> RequestApkInstallation(bool userRequested)
{
Action <ApkInstallationStatus> onComplete;
AsyncTask <ApkInstallationStatus> task =
new AsyncTask <ApkInstallationStatus>(out onComplete);
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("request installation of ARCore " +
"APK");
return(task);
}
ExternApi.ArPresto_requestApkInstallation(userRequested,
m_RequestApkInstallationResultCallback, IntPtr.Zero);
m_PendingInstallationRequestCallbacks.Add(onComplete);
return(task);
}
public CameraIntrinsics GetTextureIntrinsics(IntPtr cameraHandle)
{
IntPtr cameraIntrinsicsHandle = IntPtr.Zero;
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access GPU texture intrinsics");
return(new CameraIntrinsics());
}
ExternApi.ArCameraIntrinsics_create(
m_NativeSession.SessionHandle, ref cameraIntrinsicsHandle);
ExternApi.ArCamera_getTextureIntrinsics(
m_NativeSession.SessionHandle, cameraHandle, cameraIntrinsicsHandle);
CameraIntrinsics textureIntrinsics =
_GetCameraIntrinsicsFromHandle(cameraIntrinsicsHandle);
ExternApi.ArCameraIntrinsics_destroy(cameraIntrinsicsHandle);
return(textureIntrinsics);
}
private bool _SetCameraDirection(DeviceCameraDirection cameraDirection)
{
// The camera direction has not changed.
if (m_CachedCameraDirection.HasValue &&
m_CachedCameraDirection.Value == cameraDirection)
{
return(false);
}
if (InstantPreviewManager.IsProvidingPlatform &&
cameraDirection == DeviceCameraDirection.BackFacing)
{
return(false);
}
else if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage(
"enable front-facing (selfie) camera");
m_CachedCameraDirection = DeviceCameraDirection.BackFacing;
if (SessionComponent != null)
{
SessionComponent.DeviceCameraDirection = DeviceCameraDirection.BackFacing;
}
return(false);
}
m_CachedCameraDirection = cameraDirection;
var apiCameraDirection =
cameraDirection == DeviceCameraDirection.BackFacing ?
ApiPrestoDeviceCameraDirection.BackFacing :
ApiPrestoDeviceCameraDirection.FrontFacing;
ExternApi.ArPresto_setDeviceCameraDirection(apiCameraDirection);
return(true);
}
public Int32 AddImageAtRuntime(
IntPtr databaseHandle, string name, Texture2D image, float width)
{
Int32 outIndex = -1;
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("add images to Augmented Image " +
"database");
return(outIndex);
}
GCHandle grayscaleBytesHandle = _ConvertTextureToGrayscaleBytes(image);
if (grayscaleBytesHandle.AddrOfPinnedObject() == IntPtr.Zero)
{
return(-1);
}
ApiArStatus status = ExternApi.ArPrestoAugmentedImageDatabase_addImageAtRuntime(
databaseHandle, name, grayscaleBytesHandle.AddrOfPinnedObject(), image.width,
image.height, image.width, width, ref outIndex);
if (grayscaleBytesHandle.IsAllocated)
{
grayscaleBytesHandle.Free();
}
if (status != ApiArStatus.Success)
{
Debug.LogWarningFormat(
"Failed to add aumented image at runtime with status {0}", status);
return(-1);
}
return(outIndex);
}
public bool GetAllCameraMetadataTags(
IntPtr cameraMetadataHandle, List <CameraMetadataTag> resultList)
{
IntPtr ndkMetadataHandle = IntPtr.Zero;
if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage("access camera metadata tags");
return(false);
}
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);
}
