itsmattkc
40b3879440
Major refactoring work to try sharing as much code as possible between the video renderers and audio renderers, as well as make them as platform-independent as possible.
123 lines
2.3 KiB
C++
123 lines
2.3 KiB
C++
#ifndef RENDERBACKEND_H
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#define RENDERBACKEND_H
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#include <QLinkedList>
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#include "decodercache.h"
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#include "node/output/viewer/viewer.h"
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#include "renderworker.h"
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class RenderBackend : public QObject
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{
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Q_OBJECT
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public:
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RenderBackend(QObject* parent = nullptr);
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Q_DISABLE_COPY_MOVE(RenderBackend)
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bool Init();
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void Close();
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const QString& GetError() const;
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void SetViewerNode(ViewerOutput* viewer_node);
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void SetCacheName(const QString& s);
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bool IsInitiated();
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public slots:
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virtual void InvalidateCache(const rational &start_range, const rational &end_range) = 0;
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bool Compile();
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void Decompile();
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protected:
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void RegenerateCacheID();
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virtual bool InitInternal() = 0;
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virtual void CloseInternal() = 0;
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virtual bool CompileInternal() = 0;
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virtual void DecompileInternal() = 0;
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const QVector<QThread*>& threads();
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/**
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* @brief Internal function for generating the cache ID
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*/
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virtual bool GenerateCacheIDInternal(QCryptographicHash& hash) = 0;
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virtual void CacheIDChangedEvent(const QString& id);
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void SetError(const QString& error);
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virtual void ViewerNodeChangedEvent(ViewerOutput* node);
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/**
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* @brief Function called when there are frames in the queue to cache
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*
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* This function is NOT thread-safe and should only be called in the main thread.
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*/
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void CacheNext();
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bool GenerateData(const TimeRange& range);
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void InitWorkers();
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virtual NodeInput* GetDependentInput() = 0;
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virtual void ConnectWorkerToThis(RenderWorker* worker) = 0;
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ViewerOutput* viewer_node() const;
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DecoderCache* decoder_cache();
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const QString& cache_id() const;
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QList<TimeRange> cache_queue_;
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QVector<RenderWorker*> processors_;
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bool compiled_;
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bool caching_;
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private:
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/**
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* @brief Internal list of RenderProcessThreads
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*/
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QVector<QThread*> threads_;
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/**
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* @brief Internal variable that contains whether the Renderer has started or not
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*/
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bool started_;
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/**
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* @brief Internal reference to attached viewer node
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*/
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ViewerOutput* viewer_node_;
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/**
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* @brief Error string that can be set in SetError() to handle failures
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*/
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QString error_;
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DecoderCache decoder_cache_;
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QString cache_name_;
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qint64 cache_time_;
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QString cache_id_;
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private slots:
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void ThreadRequestedSibling(NodeDependency dep);
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};
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#endif // RENDERBACKEND_H
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