itsmattkc
f6064b40df
Workers run in different threads and the backends can poll whether the worker is currently busy or not. However the previous iteration has the worker (and an atomic int) provide the busy state which could easily desync with the main thread (since all workers run in different threads). By holding the busy states in the main thread, the main thread will always be able to poll the busy state accurately.
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#ifndef RENDERWORKER_H
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#define RENDERWORKER_H
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#include <QObject>
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#include "common/constructors.h"
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#include "node/output/track/track.h"
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#include "node/node.h"
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#include "decodercache.h"
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class RenderWorker : public QObject
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{
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Q_OBJECT
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public:
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RenderWorker(QObject* parent = nullptr);
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DISABLE_COPY_MOVE(RenderWorker)
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bool Init();
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bool IsStarted();
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public slots:
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void Close();
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void Render(NodeDependency path);
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NodeValueTable RenderAsSibling(NodeDependency dep);
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signals:
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void CompletedCache(NodeDependency dep, NodeValueTable data);
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protected:
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virtual bool InitInternal() = 0;
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virtual void CloseInternal() = 0;
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virtual NodeValueTable RenderInternal(const NodeDependency& path);
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virtual bool OutputIsAccelerated(Node *output);
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virtual void RunNodeAccelerated(Node *node, const NodeValueDatabase *input_params, NodeValueTable* output_params);
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StreamPtr ResolveStreamFromInput(NodeInput* input);
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DecoderPtr ResolveDecoderFromInput(StreamPtr stream);
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virtual FramePtr RetrieveFromDecoder(DecoderPtr decoder, const TimeRange& range) = 0;
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virtual void FrameToValue(StreamPtr stream, FramePtr frame, NodeValueTable* table) = 0;
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NodeValueTable ProcessNodeNormally(const NodeDependency &dep);
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virtual NodeValueTable RenderBlock(TrackOutput *track, const TimeRange& range) = 0;
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private:
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bool started_;
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DecoderCache decoder_cache_;
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};
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#endif // RENDERWORKER_H
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