316 lines
6.7 KiB
C++
316 lines
6.7 KiB
C++
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#ifndef TCACHEDLEVEL_INCLUDED
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#define TCACHEDLEVEL_INCLUDED
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/*
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PER ORA SI PUO' USARE LA CACHE SOLO CON WINDOWS
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*/
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#ifdef WIN32
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#include <windows.h>
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#endif
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#include "tfilepath.h"
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#include "traster.h"
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#include "tthread.h"
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#undef DVAPI
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#undef DVVAR
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#ifdef TRASTERIMAGE_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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//=============================================================================
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// forward declaration
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class TRawDataCodec;
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class TRasterCodec;
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class TCachePersist;
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//=============================================================================
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/*
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class TCache {
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public:
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TCache();
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virtual ~TCache();
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bool isCached(int frame) const = 0;
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bool isCached(int starFrame, int endFrame) const = 0; // estremi compresi
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virtual void putRaster(int frame, const TRasterP &ras) = 0;
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virtual void getRaster(int frame, TRaster32P &ras) const
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{ getRaster(frame, TRasterP(ras)); }
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virtual void getRaster(int frame, TRaster64P &ras) const
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{ getRaster(frame, TRasterP(ras)); }
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virtual void getRaster(int frame, TRasterYUV422P &ras) const
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{ getRaster(frame, TRasterP(ras)); }
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void invalidateAll() = 0;
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void invalidate(int starFrame, int endFrame) = 0; // estremi compresi
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protected:
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virtual void getRaster(int frame, TRasterP &ras) const = 0;
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};
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class TRamCache : public TCache {
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public:
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TRamCache();
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};
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class TDiskCache : public TCache {
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public:
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TDiskCache();
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};
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void TDiskCache::putRaster(int frame, const TRsterP &ras)
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{
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}
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void TDiskCache::getRaster(
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class TRAMUncompressedCache : public TRamCache {
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};
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class TRAMLzoCache : public TRamCache {
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};
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class TDiskUncompressedCache : public TDiskCache {
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};
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class TDiskYUV422Cache : public TDiskCache {
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public:
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TDiskYUV422Cache();
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~TDiskYUV422Cache();
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void putRaster(int frame, const TRasterP &ras);
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void getRaster(int frame, TRasterYUV422P &ras) const;
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};
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void TRAMUncompressedCache::getRaster(int frame, TRasterP &ras)
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{
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TRaster32P ras32(ras.getSize());
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getRaster(frame, ras32);
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convert(ras, ras32);
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}
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void TRAMUncompressedCache::getRaster(int frame, TRaster32P &ras) const
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{
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//....
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}
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*/
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//=============================================================================
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//=============================================================================
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//=============================================================================
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class DVAPI TRasterCache
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{
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public:
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TRasterCache(TCachePersist *cp);
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virtual ~TRasterCache();
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void setMode(const TDimension &size, int bpp);
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void getMode(TDimension &size, int &bpp) const;
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TRasterP getRaster(int frame) const;
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bool getBuffer(int frame, UCHAR *&buffer, int &wrap, int &bpp, TDimension &rasDim) const;
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bool getRaster(int frame, TRaster32P &ras) const;
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void putRaster(int frame, const TRasterP &ras);
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UCHAR *getRawData(int frame, TINT32 &size, int &lx, int &ly) const;
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bool isFrameCached(int frame) const;
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void invalidate();
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void invalidate(int startFrame, int endFrame);
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void enablePrefetch(bool newState);
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bool isPrefetchEnabled() const;
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TUINT64 getUsedSpace();
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protected:
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// virtual TRasterP doGetRaster(int frame) = 0;
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// virtual void doPutRaster(int frame, const TRasterP &ras) = 0;
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private:
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class Data;
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Data *m_data;
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};
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//------------------------------------------------------------------------------
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class DVAPI TCachePersist
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{
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public:
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TCachePersist(TRasterCodec *codec) : m_codec(codec) {}
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virtual ~TCachePersist() {}
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virtual void setFrameSize(int lx, int ly, int bpp) = 0;
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virtual TRasterP doGetRaster(int frame) = 0;
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virtual bool doGetRaster(int frame, TRaster32P &ras) const = 0;
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virtual bool doPutRaster(int frame, const TRasterP &ras) = 0;
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virtual void onInvalidate() = 0;
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virtual void onInvalidate(int startFrame, int endFrame) = 0;
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virtual UCHAR *getRawData(int frame, TINT32 &size, int &lx, int &ly) = 0;
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virtual TUINT64 getUsedSpace() = 0;
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//private:
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TRasterCodec *m_codec;
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};
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class DVAPI TRamCachePersist : public TCachePersist
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{
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public:
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TRamCachePersist(TRasterCodec *codec);
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~TRamCachePersist();
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void setFrameSize(int lx, int ly, int bpp) {}
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void onInvalidate();
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void onInvalidate(int startFrame, int endFrame);
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UCHAR *getRawData(int frame, TINT32 &size, int &lx, int &ly);
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TUINT64 getUsedSpace();
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private:
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TRasterP doGetRaster(int frame);
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bool doGetRaster(int frame, TRaster32P &ras) const;
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bool doPutRaster(int frame, const TRasterP &ras);
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private:
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class Imp;
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Imp *m_imp;
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};
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//------------------------------------------------------------------------------
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class DVAPI TDiskCachePersist : public TCachePersist
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{
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public:
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TDiskCachePersist(TRasterCodec *codec, const TFilePath &fullpath);
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~TDiskCachePersist();
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void setFrameSize(int lx, int ly, int bpp);
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void onInvalidate();
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void onInvalidate(int startFrame, int endFrame);
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UCHAR *getRawData(int frame, TINT32 &size, int &lx, int &ly);
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TUINT64 getUsedSpace();
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private:
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TRasterP doGetRaster(int frame);
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bool doGetRaster(int frame, TRaster32P &ras) const;
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bool doPutRaster(int frame, const TRasterP &ras);
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private:
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class Imp;
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Imp *m_imp;
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};
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//------------------------------------------------------------------------------
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// TDiskCachePersist2 usa il Direct File I/O (acceso al disco non bufferizzato)
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class DVAPI TDiskCachePersist2 : public TCachePersist
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{
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public:
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TDiskCachePersist2(TRasterCodec *codec, const TFilePath &fullpath);
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~TDiskCachePersist2();
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void setFrameSize(int lx, int ly, int bpp);
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void onInvalidate();
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void onInvalidate(int startFrame, int endFrame);
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UCHAR *getRawData(int frame, TINT32 &size, int &lx, int &ly);
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TUINT64 getUsedSpace();
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private:
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TRasterP doGetRaster(int frame);
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bool doGetRaster(int frame, TRaster32P &ras) const;
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bool doPutRaster(int frame, const TRasterP &ras);
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private:
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class Imp;
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Imp *m_imp;
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};
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//------------------------------------------------------------------------------
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class DVAPI TCompressedLevel
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{
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public:
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TCompressedLevel(const TFilePath &fullpath);
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~TCompressedLevel();
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void setSize(TDimension d);
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void putImage(int frame, const TRaster32P &ras);
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TRaster32P getImage(int frame);
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void invalidate(int frame);
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void invalidateAll();
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private:
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TCompressedLevel(); //not implemented
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TFilePath m_fullpath;
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TRawDataCodec *m_codec;
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int m_viewFrameMin,
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m_viewFrameMax;
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#ifdef WIN32
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HANDLE m_hFile, m_hMap;
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LPVOID m_fileMapAddress;
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int m_xSize, m_ySize;
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int m_frameSize;
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SYSTEM_INFO m_systemInfo;
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__int64 m_mapOffset;
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static DWORD m_maxViewSize;
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static DWORD m_maxFileSize;
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static DWORD m_reallocFileSize;
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//-------
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HANDLE initFile(const TFilePath &fname);
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HANDLE mapFile(HANDLE hFile, ULONGLONG size);
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#endif
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static TThread::Mutex m_mutex;
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void setCurrentView(int frame, bool force = false);
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};
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#endif
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