bool AutoLockYCbCrClient::EnsureDeprecatedTextureClient(PlanarYCbCrImage* aImage)
{
  MOZ_ASSERT(aImage);
  if (!aImage) {
    return false;
  }

  const PlanarYCbCrData *data = aImage->GetData();
  NS_ASSERTION(data, "Must be able to retrieve yuv data from image!");
  if (!data) {
    return false;
  }

  bool needsAllocation = false;
  if (mDescriptor->type() != SurfaceDescriptor::TYCbCrImage) {
    needsAllocation = true;
  } else {
    ipc::Shmem& shmem = mDescriptor->get_YCbCrImage().data();
    YCbCrImageDataSerializer serializer(shmem.get<uint8_t>());
    if (serializer.GetYSize() != data->mYSize ||
        serializer.GetCbCrSize() != data->mCbCrSize) {
      needsAllocation = true;
    }
  }

  if (!needsAllocation) {
    return true;
  }

  mDeprecatedTextureClient->ReleaseResources();

  ipc::SharedMemory::SharedMemoryType shmType = OptimalShmemType();
  size_t size = YCbCrImageDataSerializer::ComputeMinBufferSize(data->mYSize,
                                                               data->mCbCrSize);
  ipc::Shmem shmem;
  if (!mDeprecatedTextureClient->GetForwarder()->AllocUnsafeShmem(size, shmType, &shmem)) {
    return false;
  }

  YCbCrImageDataSerializer serializer(shmem.get<uint8_t>());
  serializer.InitializeBufferInfo(data->mYSize,
                                  data->mCbCrSize,
                                  data->mStereoMode);

  *mDescriptor = YCbCrImage(shmem, 0);

  return true;
}
SharedImage* ImageContainerChild::AllocateSharedImageFor(Image* image)
{
  NS_ABORT_IF_FALSE(InImageBridgeChildThread(),
                  "Should be in ImageBridgeChild thread.");
  if (!image) {
    return nullptr;
  }

  if (image->GetFormat() == PLANAR_YCBCR ) {
    PlanarYCbCrImage *planarYCbCrImage = static_cast<PlanarYCbCrImage*>(image);
    const PlanarYCbCrImage::Data *data = planarYCbCrImage->GetData();
    NS_ASSERTION(data, "Must be able to retrieve yuv data from image!");
    if (!data) {
      return nullptr;
    }

    SharedMemory::SharedMemoryType shmType = OptimalShmemType();
    size_t size = ShmemYCbCrImage::ComputeMinBufferSize(data->mYSize,
                                                        data->mCbCrSize);
    Shmem shmem;
    if (!AllocUnsafeShmem(size, shmType, &shmem)) {
      return nullptr;
    }

    ShmemYCbCrImage::InitializeBufferInfo(shmem.get<uint8_t>(),
                                          data->mYSize,
                                          data->mCbCrSize);
    ShmemYCbCrImage shmemImage(shmem);

    if (!shmemImage.IsValid()) {
      NS_WARNING("Failed to properly allocate image data!");
      DeallocShmem(shmem);
      return nullptr;
    }

    ++mActiveImageCount;
    return new SharedImage(YCbCrImage(shmem, 0, data->GetPictureRect()));
  } else {
    NS_RUNTIMEABORT("TODO: Only YCbCrImage is supported here right now.");
  }
  return nullptr;
}
SharedImage* ImageContainerChild::CreateSharedImageFromData(Image* image)
{
    NS_ABORT_IF_FALSE(InImageBridgeChildThread(),
                      "Should be in ImageBridgeChild thread.");

    if (!image) {
        return nullptr;
    }
    if (image->GetFormat() == PLANAR_YCBCR ) {
        PlanarYCbCrImage *planarYCbCrImage = static_cast<PlanarYCbCrImage*>(image);
        const PlanarYCbCrImage::Data *data = planarYCbCrImage->GetData();
        NS_ASSERTION(data, "Must be able to retrieve yuv data from image!");
        if (!data) {
            return nullptr;
        }

        SharedMemory::SharedMemoryType shmType = OptimalShmemType();
        size_t size = ShmemYCbCrImage::ComputeMinBufferSize(data->mYSize,
                      data->mCbCrSize);
        Shmem shmem;
        if (!AllocUnsafeShmem(size, shmType, &shmem)) {
            return nullptr;
        }

        ShmemYCbCrImage::InitializeBufferInfo(shmem.get<uint8_t>(),
                                              data->mYSize,
                                              data->mCbCrSize);
        ShmemYCbCrImage shmemImage(shmem);

        if (!shmemImage.IsValid() || shmem.Size<uint8_t>() < size) {
            DeallocShmem(shmem);
            return nullptr;
        }

        for (int i = 0; i < data->mYSize.height; i++) {
            memcpy(shmemImage.GetYData() + i * shmemImage.GetYStride(),
                   data->mYChannel + i * data->mYStride,
                   data->mYSize.width);
        }
        for (int i = 0; i < data->mCbCrSize.height; i++) {
            memcpy(shmemImage.GetCbData() + i * shmemImage.GetCbCrStride(),
                   data->mCbChannel + i * data->mCbCrStride,
                   data->mCbCrSize.width);
            memcpy(shmemImage.GetCrData() + i * shmemImage.GetCbCrStride(),
                   data->mCrChannel + i * data->mCbCrStride,
                   data->mCbCrSize.width);
        }

        ++mActiveImageCount;
        SharedImage* result = new SharedImage(YCbCrImage(shmem, 0, data->GetPictureRect()));
        return result;
#ifdef MOZ_WIDGET_GONK
    } else if (image->GetFormat() == GONK_IO_SURFACE) {
        GonkIOSurfaceImage* gonkImage = static_cast<GonkIOSurfaceImage*>(image);
        SharedImage* result = new SharedImage(gonkImage->GetSurfaceDescriptor());
        return result;
    } else if (image->GetFormat() == GRALLOC_PLANAR_YCBCR) {
        GrallocPlanarYCbCrImage* GrallocImage = static_cast<GrallocPlanarYCbCrImage*>(image);
        SharedImage* result = new SharedImage(GrallocImage->GetSurfaceDescriptor());
        return result;
#endif
    } else {
        NS_RUNTIMEABORT("TODO: Only YCbCrImage is supported here right now.");
    }
    return nullptr;
}