Beispiel #1
0
/* static */ void
IDecodingTask::NotifyProgress(NotNull<RasterImage*> aImage,
                              NotNull<Decoder*> aDecoder)
{
  MOZ_ASSERT(aDecoder->HasProgress() && !aDecoder->IsMetadataDecode());

  // Capture the decoder's state. If we need to notify asynchronously, it's
  // important that we don't wait until the lambda actually runs to capture the
  // state that we're going to notify. That would both introduce data races on
  // the decoder's state and cause inconsistencies between the NotifyProgress()
  // calls we make off-main-thread and the notifications that RasterImage
  // actually receives, which would cause bugs.
  Progress progress = aDecoder->TakeProgress();
  IntRect invalidRect = aDecoder->TakeInvalidRect();
  Maybe<uint32_t> frameCount = aDecoder->TakeCompleteFrameCount();
  SurfaceFlags surfaceFlags = aDecoder->GetSurfaceFlags();

  // Synchronously notify if we can.
  if (NS_IsMainThread() &&
      !(aDecoder->GetDecoderFlags() & DecoderFlags::ASYNC_NOTIFY)) {
    aImage->NotifyProgress(progress, invalidRect,
                           frameCount, surfaceFlags);
    return;
  }

  // We're forced to notify asynchronously.
  NotNull<RefPtr<RasterImage>> image = aImage;
  NS_DispatchToMainThread(NS_NewRunnableFunction([=]() -> void {
    image->NotifyProgress(progress, invalidRect,
                          frameCount, surfaceFlags);
  }));
}
Beispiel #2
0
static void
NotifyProgress(NotNull<Decoder*> aDecoder)
{
  MOZ_ASSERT(aDecoder->HasProgress() && !aDecoder->IsMetadataDecode());

  Progress progress = aDecoder->TakeProgress();
  IntRect invalidRect = aDecoder->TakeInvalidRect();
  Maybe<uint32_t> frameCount = aDecoder->TakeCompleteFrameCount();
  SurfaceFlags surfaceFlags = aDecoder->GetSurfaceFlags();

  // Synchronously notify if we can.
  if (NS_IsMainThread() &&
      !(aDecoder->GetDecoderFlags() & DecoderFlags::ASYNC_NOTIFY)) {
    aDecoder->GetImage()->NotifyProgress(progress, invalidRect,
                                         frameCount, surfaceFlags);
    return;
  }

  // We're forced to notify asynchronously.
  NotNull<RefPtr<Decoder>> decoder = aDecoder;
  NS_DispatchToMainThread(NS_NewRunnableFunction([=]() -> void {
    decoder->GetImage()->NotifyProgress(progress, invalidRect,
                                        frameCount, surfaceFlags);
  }));
}
/* static */ void
IDecodingTask::NotifyProgress(NotNull<Decoder*> aDecoder)
{
  MOZ_ASSERT(aDecoder->HasProgress() && !aDecoder->IsMetadataDecode());

  // Synchronously notify if we can.
  if (NS_IsMainThread() &&
      !(aDecoder->GetDecoderFlags() & DecoderFlags::ASYNC_NOTIFY)) {
    aDecoder->GetImage()->NotifyProgress(aDecoder->TakeProgress(),
                                         aDecoder->TakeInvalidRect(),
                                         aDecoder->GetSurfaceFlags());
    return;
  }

  // We're forced to notify asynchronously.
  NotNull<RefPtr<Decoder>> decoder = aDecoder;
  NS_DispatchToMainThread(NS_NewRunnableFunction([=]() -> void {
    decoder->GetImage()->NotifyProgress(decoder->TakeProgress(),
                                        decoder->TakeInvalidRect(),
                                        decoder->GetSurfaceFlags());
  }));
}