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Fix RegisterExternalContext() life cycle issues on WaveVR #3691

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Jul 16, 2020

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@MortimerGoro MortimerGoro commented Jul 16, 2020

Fixes #3688

It turns out that WVR_RenderInit() is a blocking call that waits for the activity to be active/resumed to complete the internal work. The function is slow to react so Gecko is initialized earlier and fails all the attempts to detect VR runtimes, because the external shmem is null. We need to process InitializeJava earlier instead of waiting for the slow WVR_RenderInit to complete.

100% reproducible STR:

  • Take off the HMD until the screen turns off
  • Launch FxR from Android Studio
  • Put the HMD AFTER the application has started

Fixes #3688

It turns out that WVR_RenderInit() is a blocking call that waits for the activity to be active/resumed to complete the internal work. The function is slow to react so Gecko is initializes earlier and fails all the attempts to detect VR runtimes, because the external shmem is null. We need to process InitializeJava earlier instead of waiting for the slow WVR_RenderInit to complete
@MortimerGoro MortimerGoro added the Uplift PR that needs to be uplifted. label Jul 16, 2020
@MortimerGoro MortimerGoro added this to the #11 polish milestone Jul 16, 2020
@MortimerGoro MortimerGoro self-assigned this Jul 16, 2020
@bluemarvin bluemarvin merged commit d672a66 into main Jul 16, 2020
@bluemarvin bluemarvin deleted the vive_external_life_cycle branch July 16, 2020 19:28
bluemarvin pushed a commit that referenced this pull request Jul 16, 2020
Fixes #3688

It turns out that WVR_RenderInit() is a blocking call that waits for the activity to be active/resumed to complete the internal work. The function is slow to react so Gecko is initializes earlier and fails all the attempts to detect VR runtimes, because the external shmem is null. We need to process InitializeJava earlier instead of waiting for the slow WVR_RenderInit to complete
@bluemarvin bluemarvin removed the Uplift PR that needs to be uplifted. label Jul 16, 2020
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Successfully merging this pull request may close these issues.

[HTC] [Intermittent] The headset is not recognized as a VR device after an update or sleep
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