itsmattkc
53ae25a7cb
A huge optimization that ensures only the parts of a node graph that have changed get pushed to the renderer. For thread-safety, the node graph is copied elsewhere so that users can make changes asynchronously and the graph can update when its threads are ready. Up until now, if an input value changed, every node's values would be re-copied, or worse, if a connection was changed, the entire graph would be recopied. This has been negligible in testing since we've been largely testing with small graphs, but for massive projects, it's important that this be as optimized as possible.
144 lines
3.5 KiB
C++
144 lines
3.5 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef VIEWER_H
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#define VIEWER_H
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#include <QUuid>
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#include "common/timelinecommon.h"
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#include "node/block/block.h"
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#include "node/output/track/track.h"
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#include "node/output/track/tracklist.h"
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#include "node/node.h"
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#include "render/videoparams.h"
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#include "render/audioparams.h"
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#include "timeline/trackreference.h"
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OLIVE_NAMESPACE_ENTER
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/**
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* @brief A bridge between a node system and a ViewerPanel
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*
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* Receives update/time change signals from ViewerPanels and responds by sending them a texture of that frame
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*/
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class ViewerOutput : public Node
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{
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Q_OBJECT
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public:
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ViewerOutput();
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virtual Node* copy() const override;
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virtual QString Name() const override;
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virtual QString id() const override;
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virtual QString Category() const override;
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virtual QString Description() const override;
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NodeInput* texture_input() const;
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NodeInput* samples_input() const;
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virtual void InvalidateCache(const TimeRange &range, NodeInput *from, NodeInput* source) override;
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virtual void InvalidateVisible(NodeInput *from, NodeInput* source) override;
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const VideoParams& video_params() const;
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const AudioParams& audio_params() const;
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void set_video_params(const VideoParams& video);
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void set_audio_params(const AudioParams& audio);
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rational Length();
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const QUuid& uuid() const;
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const QVector<TrackOutput *> &Tracks() const;
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NodeInput* track_input(Timeline::TrackType type) const;
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TrackList* track_list(Timeline::TrackType type) const;
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virtual void Retranslate() override;
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const QString& media_name() const;
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void set_media_name(const QString& name);
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signals:
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void TimebaseChanged(const rational&);
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void VideoChangedBetween(const TimeRange& range, NodeInput* source);
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void AudioChangedBetween(const TimeRange& range, NodeInput* source);
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void VisibleInvalidated(NodeInput* source);
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void LengthChanged(const rational& length);
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void SizeChanged(int width, int height);
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void VideoParamsChanged();
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void BlockAdded(Block* block, TrackReference track);
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void BlockRemoved(Block* block);
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void TrackAdded(TrackOutput* track, Timeline::TrackType type);
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void TrackRemoved(TrackOutput* track);
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void TrackHeightChanged(Timeline::TrackType type, int index, int height);
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void MediaNameChanged(const QString& name);
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private:
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QUuid uuid_;
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NodeInput* texture_input_;
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NodeInput* samples_input_;
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VideoParams video_params_;
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AudioParams audio_params_;
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QVector<NodeInput*> track_inputs_;
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QVector<TrackList*> track_lists_;
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QVector<TrackOutput*> track_cache_;
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rational timeline_length_;
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QString media_name_;
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private slots:
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void UpdateTrackCache();
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void UpdateLength(const rational &length);
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void TrackListAddedBlock(Block* block, int index);
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void TrackListAddedTrack(TrackOutput* track);
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void TrackHeightChangedSlot(int index, int height);
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};
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OLIVE_NAMESPACE_EXIT
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#endif // VIEWER_H
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