153 lines
4.1 KiB
C++
153 lines
4.1 KiB
C++
/***
|
|
|
|
Olive - Non-Linear Video Editor
|
|
Copyright (C) 2019 Olive Team
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
***/
|
|
|
|
#ifndef VIDEORENDERERBACKEND_H
|
|
#define VIDEORENDERERBACKEND_H
|
|
|
|
#include <QLinkedList>
|
|
|
|
#include "colorprocessorcache.h"
|
|
#include "node/output/viewer/viewer.h"
|
|
#include "renderbackend.h"
|
|
#include "render/pixelformat.h"
|
|
#include "render/rendermodes.h"
|
|
#include "videorenderframecache.h"
|
|
#include "videorenderworker.h"
|
|
|
|
OLIVE_NAMESPACE_ENTER
|
|
|
|
/**
|
|
* @brief A multithreaded OpenGL based renderer for node systems
|
|
*/
|
|
class VideoRenderBackend : public RenderBackend
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
/**
|
|
* @brief Renderer Constructor
|
|
*
|
|
* Constructing a Renderer object will not start any threads/backend on its own. Use Start() to do this and Stop()
|
|
* when the Renderer is about to be destroyed.
|
|
*/
|
|
VideoRenderBackend(QObject* parent = nullptr);
|
|
|
|
/**
|
|
* @brief Set parameters of the Renderer
|
|
*
|
|
* The Renderer owns the buffers that are used in the rendering process and this function sets the kind of buffers
|
|
* to use. The Renderer must be stopped when calling this function.
|
|
*/
|
|
void SetParameters(const VideoRenderingParams ¶ms);
|
|
|
|
void SetOperatingMode(const VideoRenderWorker::OperatingMode& mode);
|
|
|
|
void SetFrameGenerationParams(int width, int height, const QMatrix4x4& matrix);
|
|
|
|
void SetOnlySignalLastFrameRequested(bool enabled);
|
|
|
|
bool IsRendered(const rational& time) const;
|
|
|
|
void SetLimitCaching(bool limit);
|
|
|
|
QString GetCachedFrame(const rational& time);
|
|
|
|
void UpdateLastRequestedTime(const rational& time);
|
|
|
|
VideoRenderFrameCache* frame_cache();
|
|
|
|
const VideoRenderingParams& params() const;
|
|
|
|
protected:
|
|
struct HashTimeMapping {
|
|
rational time;
|
|
QByteArray hash;
|
|
};
|
|
|
|
virtual void ConnectViewer(ViewerOutput* node) override;
|
|
|
|
virtual void DisconnectViewer(ViewerOutput* node) override;
|
|
|
|
virtual NodeInput* GetDependentInput() override;
|
|
|
|
virtual bool CanRender() override;
|
|
|
|
virtual TimeRange PopNextFrameFromQueue() override;
|
|
|
|
/**
|
|
* @brief Internal function for generating the cache ID
|
|
*/
|
|
virtual bool GenerateCacheIDInternal(QCryptographicHash& hash) override;
|
|
|
|
virtual void CacheIDChangedEvent(const QString& id) override;
|
|
|
|
virtual void ConnectWorkerToThis(RenderWorker* processor) override;
|
|
|
|
virtual void InvalidateCacheInternal(const rational &start_range, const rational &end_range) override;
|
|
|
|
virtual void ParamsChangedEvent(){}
|
|
|
|
VideoRenderWorker::OperatingMode operating_mode_;
|
|
|
|
signals:
|
|
void CachedTimeReady(const rational& time, qint64 job_time);
|
|
|
|
void RangeInvalidated(const TimeRange& range);
|
|
|
|
void GeneratedFrame(FramePtr frame);
|
|
|
|
private:
|
|
bool TimeIsQueued(const TimeRange &time) const;
|
|
|
|
bool JobIsCurrent(const NodeDependency &dep, const qint64& job_time) const;
|
|
|
|
bool SetFrameHash(const NodeDependency& dep, const QByteArray& hash, const qint64& job_time);
|
|
|
|
void Requeue();
|
|
|
|
VideoRenderingParams params_;
|
|
|
|
VideoRenderFrameCache frame_cache_;
|
|
|
|
TimeRangeList invalidated_;
|
|
|
|
rational last_time_requested_;
|
|
|
|
bool only_signal_last_frame_requested_;
|
|
|
|
bool limit_caching_;
|
|
|
|
bool pop_toggle_;
|
|
|
|
private slots:
|
|
void ThreadCompletedDownload(NodeDependency dep, qint64 job_time, QByteArray hash);
|
|
void ThreadSkippedFrame(NodeDependency dep, qint64 job_time, QByteArray hash);
|
|
void ThreadHashAlreadyExists(NodeDependency dep, qint64 job_time, QByteArray hash);
|
|
void ThreadGeneratedFrame();
|
|
|
|
void TruncateFrameCacheLength(const rational& length);
|
|
|
|
void FrameRemovedFromDiskCache(const QByteArray& hash);
|
|
|
|
};
|
|
|
|
OLIVE_NAMESPACE_EXIT
|
|
|
|
#endif // VIDEORENDERERBACKEND_H
|