/* 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);
}));
}
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());
}));
}