File indexing completed on 2024-05-12 16:01:48

 /*
  *  SPDX-FileCopyrightText: 2018 Dmitry Kazakov <dimula73@gmail.com>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 #ifndef KISFRAMECACHESTORE_H
 #define KISFRAMECACHESTORE_H
 
 #include "kritaui_export.h"
 #include <QScopedPointer>
 #include "kis_types.h"
 
 #include "opengl/kis_texture_tile_info_pool.h"
 
 class KisOpenGLUpdateInfoBuilder;
 
 class KisOpenGLUpdateInfo;
 typedef KisSharedPtr<KisOpenGLUpdateInfo> KisOpenGLUpdateInfoSP;
 
 /**
  * KisFrameCacheStore is a middle-level class for reading/writing
  * animation frames on disk. Its main responsibilities:
  *
  * 1) Convert frames from KisOpenGLUpdateInfo format into a serializable
  *    KisFrameDataSerializer::Frame format.
  *
  * 2) Calculate differences between the frames and decide which
  *    frame will be a keyframe for other frames.
  *
  * 3) The keyframes will be used as a base for difference
  *    calculation and stored in a short in-memory cache to avoid
  *    fetching them from disk too often.
  *
  * 4) The in-memory cache of the keyframes is stored in serializable
  *    KisFrameDataSerializer::Frame format.
  */
 
 class KRITAUI_EXPORT KisFrameCacheStore
 {
 public:
     KisFrameCacheStore();
     KisFrameCacheStore(const QString &frameCachePath);
 
     ~KisFrameCacheStore();
 
     // WARNING: after transferring \p info to saveFrame() the object becomes invalid
     void saveFrame(int frameId, KisOpenGLUpdateInfoSP info, const QRect &imageBounds);
     KisOpenGLUpdateInfoSP loadFrame(int frameId, const KisOpenGLUpdateInfoBuilder &builder);
 
     void moveFrame(int srcFrameId, int dstFrameId);
 
     void forgetFrame(int frameId);
     bool hasFrame(int frameId) const;
 
     int frameLevelOfDetail(int frameId) const;
     QRect frameDirtyRect(int frameId) const;
 
 private:
     struct Private;
     const QScopedPointer<Private> m_d;
 };
 
 #endif // KISFRAMECACHESTORE_H