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videorenderer: if an InvalidateVisible() signal comes through, cancel the queue

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Optimization that frees up the GPU as quickly as possible when the user starts
making changes that may require quick feedback.
This commit is contained in:
itsmattkc
2020-05-07 00:56:16 +10:00
parent 2eb753e99d
commit c61adbf2a2
7 changed files with 59 additions and 27 deletions
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app/render/backend/videorenderbackend.cpp
+20 -4
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@@ -152,7 +152,7 @@ void VideoRenderBackend::ConnectWorkerToThis(RenderWorker *processor)
connect(video_processor, &VideoRenderWorker::GeneratedFrame, this, &VideoRenderBackend::ThreadGeneratedFrame, Qt::QueuedConnection);
}
void VideoRenderBackend::InvalidateCacheInternal(const rational &start_range, const rational &end_range)
void VideoRenderBackend::InvalidateCacheInternal(const rational &start_range, const rational &end_range, bool only_visible)
{
TimeRange invalidated(start_range, end_range);
@@ -160,7 +160,21 @@ void VideoRenderBackend::InvalidateCacheInternal(const rational &start_range, co
emit RangeInvalidated(invalidated);
Requeue();
if (only_visible) {
// We're only caching this frame, and for maximum responsiveness, should cancel the rest of the
// queue
cache_queue_.clear();
cache_queue_.InsertTimeRange(TimeRange(start_range, end_range));
CacheNext();
} else {
// Rework the queue
Requeue();
}
}
VideoRenderFrameCache *VideoRenderBackend::frame_cache()
@@ -201,9 +215,11 @@ QString VideoRenderBackend::GetCachedFrame(const rational &time)
void VideoRenderBackend::UpdateLastRequestedTime(const rational &time)
{
last_time_requested_ = time;
if (last_time_requested_ != time) {
last_time_requested_ = time;
Requeue();
Requeue();
}
}
NodeInput *VideoRenderBackend::GetDependentInput()