private void _UpdateState()
{
ApiPrestoStatus prestoStatus = ApiPrestoStatus.Uninitialized;
ExternApi.ArPresto_getStatus(ref prestoStatus);
IsTracking = prestoStatus == ApiPrestoStatus.Resumed;
SessionStatus = prestoStatus.ToSessionStatus();
}
private void _OnEarlyUpdate()
{
// Update session activity before EarlyUpdate.
if (m_CachedSessionEnabled.HasValue)
{
_SetSessionEnabled(m_CachedSessionEnabled.Value);
m_CachedSessionEnabled = null;
}
// Perform updates before calling ArPresto_update.
_UpdateDisplayGeometry();
if (SessionComponent != null)
{
_SetCameraDirection(SessionComponent.DeviceCameraDirection);
_SetConfiguration(SessionComponent.SessionConfig);
}
// Update ArPresto and potentially ArCore.
ExternApi.ArPresto_update();
// Get state information from ARPresto.
ApiPrestoStatus prestoStatus = ApiPrestoStatus.Uninitialized;
ExternApi.ArPresto_getStatus(ref prestoStatus);
SessionStatus = prestoStatus.ToSessionStatus();
LostTrackingReason = LostTrackingReason.None;
if (NativeSession != null && SessionStatus == SessionStatus.LostTracking)
{
var cameraHandle = NativeSession.FrameApi.AcquireCamera();
LostTrackingReason = NativeSession.CameraApi.GetLostTrackingReason(cameraHandle);
NativeSession.CameraApi.Release(cameraHandle);
}
// Get the current session from presto and note if it has changed.
IntPtr sessionHandle = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref sessionHandle);
IsSessionChangedThisFrame = m_CachedSessionHandle != sessionHandle;
m_CachedSessionHandle = sessionHandle;
ExternApi.ArPresto_getFrame(ref m_CachedFrameHandle);
// Update the native session with the newest frame.
if (NativeSession != null)
{
NativeSession.OnUpdate(m_CachedFrameHandle);
}
_UpdateTextureIfNeeded();
if (EarlyUpdate != null)
{
EarlyUpdate();
}
}
private void _OnEarlyUpdate()
{
// Perform updates before calling ArPresto_update.
_UpdateDisplayGeometry();
if (SessionComponent != null)
{
_SetConfiguration(SessionComponent.SessionConfig);
}
// Update ArPresto and potentially ArCore.
ExternApi.ArPresto_update();
// Get state information from ARPresto.
ApiPrestoStatus prestoStatus = ApiPrestoStatus.Uninitialized;
IntPtr sessionHandle = IntPtr.Zero;
IntPtr frameHandle = IntPtr.Zero;
ExternApi.ArPresto_getStatus(ref prestoStatus);
ExternApi.ArPresto_getSession(ref sessionHandle);
ExternApi.ArPresto_getFrame(ref frameHandle);
SessionStatus = prestoStatus.ToSessionStatus();
// Update native session reference to match presto.
if (sessionHandle == IntPtr.Zero)
{
NativeSession = null;
}
else if (NativeSession == null)
{
NativeSession = new NativeSession(sessionHandle, frameHandle);
}
// Update the native session with the newest frame.
if (NativeSession != null)
{
NativeSession.OnUpdate(frameHandle);
}
_UpdateTextureIfNeeded();
if (EarlyUpdate != null)
{
EarlyUpdate();
}
}
public static SessionStatus ToSessionStatus(this ApiPrestoStatus prestoStatus)
{
switch (prestoStatus)
{
case ApiPrestoStatus.Uninitialized:
return(SessionStatus.None);
case ApiPrestoStatus.RequestingApkInstall:
case ApiPrestoStatus.RequestingPermission:
return(SessionStatus.Initializing);
case ApiPrestoStatus.Resumed:
return(SessionStatus.Tracking);
case ApiPrestoStatus.ResumedNotTracking:
return(SessionStatus.LostTracking);
case ApiPrestoStatus.Paused:
return(SessionStatus.NotTracking);
case ApiPrestoStatus.ErrorFatal:
return(SessionStatus.FatalError);
case ApiPrestoStatus.ErrorApkNotAvailable:
return(SessionStatus.ErrorApkNotAvailable);
case ApiPrestoStatus.ErrorPermissionNotGranted:
return(SessionStatus.ErrorPermissionNotGranted);
case ApiPrestoStatus.ErrorSessionConfigurationNotSupported:
return(SessionStatus.ErrorSessionConfigurationNotSupported);
case ApiPrestoStatus.ErrorCameraNotAvailable:
return(SessionStatus.ErrorCameraNotAvailable);
case ApiPrestoStatus.ErrorIllegalState:
return(SessionStatus.ErrorIllegalState);
case ApiPrestoStatus.ErrorInvalidCameraConfig:
return(SessionStatus.ErrorInvalidCameraConfig);
default:
Debug.LogErrorFormat("Unexpected presto status {0}", prestoStatus);
return(SessionStatus.FatalError);
}
}
private bool SetCameraDirection(DeviceCameraDirection cameraDirection)
{
// The camera direction has not changed.
if (_cachedCameraDirection.HasValue &&
_cachedCameraDirection.Value == cameraDirection)
{
return(false);
}
if (InstantPreviewManager.IsProvidingPlatform &&
cameraDirection == DeviceCameraDirection.BackFacing)
{
return(false);
}
else if (InstantPreviewManager.IsProvidingPlatform)
{
InstantPreviewManager.LogLimitedSupportMessage(
"enable front-facing (selfie) camera");
_cachedCameraDirection = DeviceCameraDirection.BackFacing;
if (SessionComponent != null)
{
SessionComponent.DeviceCameraDirection = DeviceCameraDirection.BackFacing;
}
return(false);
}
_cachedCameraDirection = cameraDirection;
ApiPrestoStatus prestoStatus = ApiPrestoStatus.Uninitialized;
ExternApi.ArPresto_getStatus(ref prestoStatus);
if (prestoStatus == ApiPrestoStatus.ErrorInvalidCameraConfig)
{
// if the session is paused by invalid camera configuration,
// attempt to recover by changing the camera direction:
OnBeforeResumeSession(_cachedSessionHandle);
}
return(true);
}
public static extern void ArPresto_getStatus(ref ApiPrestoStatus prestoStatus);
private void _OnEarlyUpdate()
{
_SetCameraTextureName();
// Update session activity before EarlyUpdate.
if (m_HaveDisableToEnableTransition)
{
_SetSessionEnabled(false);
_SetSessionEnabled(true);
m_HaveDisableToEnableTransition = false;
// Avoid firing session enable event twice.
if (m_DesiredSessionState.HasValue && m_DesiredSessionState.Value)
{
m_DesiredSessionState = null;
}
}
if (m_DesiredSessionState.HasValue)
{
_SetSessionEnabled(m_DesiredSessionState.Value);
m_DesiredSessionState = null;
}
// Perform updates before calling ArPresto_update.
if (SessionComponent != null)
{
IntPtr previousSession = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref previousSession);
if (UpdateSessionFeatures != null)
{
UpdateSessionFeatures();
}
_SetCameraDirection(SessionComponent.DeviceCameraDirection);
IntPtr currentSession = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref currentSession);
// Fire the session enabled event when the underlying session has been changed
// due to session feature update(camera direction etc).
if (previousSession != currentSession)
{
_FireOnSessionSetEnabled(false);
_FireOnSessionSetEnabled(true);
}
// Validate and convert the SessionConfig to a Instant Preview supported config by
// logging and disabling limited supported features.
if (InstantPreviewManager.IsProvidingPlatform &&
SessionComponent.SessionConfig != null &&
!InstantPreviewManager.ValidateSessionConfig(SessionComponent.SessionConfig))
{
// A new SessionConfig object will be created based on the original
// SessionConfig with all limited support features disabled.
SessionComponent.SessionConfig =
InstantPreviewManager.GenerateInstantPreviewSupportedConfig(
SessionComponent.SessionConfig);
}
_UpdateConfiguration(SessionComponent.SessionConfig);
}
_UpdateDisplayGeometry();
// Update ArPresto and potentially ArCore.
ExternApi.ArPresto_update();
if (SystemInfo.graphicsMultiThreaded && !InstantPreviewManager.IsProvidingPlatform)
{
// Synchronize render thread with update call.
ExternApi.ARCoreRenderingUtils_CreatePostUpdateFence();
}
SessionStatus previousSessionStatus = SessionStatus;
// Get state information from ARPresto.
ApiPrestoStatus prestoStatus = ApiPrestoStatus.Uninitialized;
ExternApi.ArPresto_getStatus(ref prestoStatus);
SessionStatus = prestoStatus.ToSessionStatus();
LostTrackingReason = LostTrackingReason.None;
if (NativeSession != null && SessionStatus == SessionStatus.LostTracking)
{
var cameraHandle = NativeSession.FrameApi.AcquireCamera();
LostTrackingReason = NativeSession.CameraApi.GetLostTrackingReason(cameraHandle);
NativeSession.CameraApi.Release(cameraHandle);
}
// If the current status is an error, check if the SessionStatus error state changed.
if (SessionStatus.IsError() &&
previousSessionStatus.IsError() != SessionStatus.IsError())
{
// Disable internal session bits so we properly pause the session due to error.
_FireOnSessionSetEnabled(false);
m_DisabledSessionOnErrorState = true;
}
else if (SessionStatus.IsValid() && m_DisabledSessionOnErrorState)
{
if (SessionComponent.enabled)
{
_FireOnSessionSetEnabled(true);
}
m_DisabledSessionOnErrorState = false;
}
// Get the current session from presto and note if it has changed.
IntPtr sessionHandle = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref sessionHandle);
IsSessionChangedThisFrame = m_CachedSessionHandle != sessionHandle;
m_CachedSessionHandle = sessionHandle;
ExternApi.ArPresto_getFrame(ref m_CachedFrameHandle);
// Update the native session with the newest frame.
if (NativeSession != null)
{
NativeSession.OnUpdate(m_CachedFrameHandle);
}
_UpdateTextureIfNeeded();
if (EarlyUpdate != null)
{
EarlyUpdate();
}
}
private void _OnEarlyUpdate()
{
// Update session activity before EarlyUpdate.
if (m_HaveDisableToEnableTransition)
{
_SetSessionEnabled(false);
_SetSessionEnabled(true);
m_HaveDisableToEnableTransition = false;
// Avoid firing session enable event twice.
if (m_DesiredSessionState.HasValue && m_DesiredSessionState.Value)
{
m_DesiredSessionState = null;
}
}
if (m_DesiredSessionState.HasValue)
{
_SetSessionEnabled(m_DesiredSessionState.Value);
m_DesiredSessionState = null;
}
// Perform updates before calling ArPresto_update.
if (SessionComponent != null)
{
IntPtr previousSession = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref previousSession);
if (UpdateSessionFeatures != null)
{
UpdateSessionFeatures();
}
_SetCameraDirection(SessionComponent.DeviceCameraDirection);
IntPtr currentSession = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref currentSession);
// Fire the session enabled event when the underlying session has been changed
// due to session feature update(camera direction etc).
if (previousSession != currentSession)
{
_FireOnSessionSetEnabled(false);
_FireOnSessionSetEnabled(true);
}
_SetConfiguration(SessionComponent.SessionConfig);
}
_UpdateDisplayGeometry();
// Update ArPresto and potentially ArCore.
ExternApi.ArPresto_update();
SessionStatus previousSessionStatus = SessionStatus;
// Get state information from ARPresto.
ApiPrestoStatus prestoStatus = ApiPrestoStatus.Uninitialized;
ExternApi.ArPresto_getStatus(ref prestoStatus);
SessionStatus = prestoStatus.ToSessionStatus();
LostTrackingReason = LostTrackingReason.None;
if (NativeSession != null && SessionStatus == SessionStatus.LostTracking)
{
var cameraHandle = NativeSession.FrameApi.AcquireCamera();
LostTrackingReason = NativeSession.CameraApi.GetLostTrackingReason(cameraHandle);
NativeSession.CameraApi.Release(cameraHandle);
}
// If the current status is an error, check if the SessionStatus error state changed.
if (SessionStatus.IsError() &&
previousSessionStatus.IsError() != SessionStatus.IsError())
{
// Disable internal session bits so we properly pause the session due to error.
_FireOnSessionSetEnabled(false);
m_DisabledSessionOnErrorState = true;
}
else if (SessionStatus.IsValid() && m_DisabledSessionOnErrorState)
{
if (SessionComponent.enabled)
{
_FireOnSessionSetEnabled(true);
}
m_DisabledSessionOnErrorState = false;
}
// Get the current session from presto and note if it has changed.
IntPtr sessionHandle = IntPtr.Zero;
ExternApi.ArPresto_getSession(ref sessionHandle);
IsSessionChangedThisFrame = m_CachedSessionHandle != sessionHandle;
m_CachedSessionHandle = sessionHandle;
ExternApi.ArPresto_getFrame(ref m_CachedFrameHandle);
// Update the native session with the newest frame.
if (NativeSession != null)
{
NativeSession.OnUpdate(m_CachedFrameHandle);
}
_UpdateTextureIfNeeded();
if (EarlyUpdate != null)
{
EarlyUpdate();
}
}
