mirror of
https://github.com/microsoft/Microsoft-3D-Movie-Maker.git
synced 2024-11-22 02:12:33 +01:00
330 lines
9.0 KiB
C++
330 lines
9.0 KiB
C++
/* Copyright (c) Microsoft Corporation.
|
|
Licensed under the MIT License. */
|
|
|
|
/* Copyright (c) Microsoft Corporation.
|
|
Licensed under the MIT License. */
|
|
|
|
/***************************************************************************
|
|
Author: ShonK
|
|
Project: Kauai
|
|
Reviewed:
|
|
Copyright (c) Microsoft Corporation
|
|
|
|
Chunky file classes. See comments in chunk.cpp.
|
|
|
|
***************************************************************************/
|
|
#ifndef CHUNK_H
|
|
#define CHUNK_H
|
|
|
|
|
|
/***************************************************************************
|
|
These must be unsigned longs! We sort on them and assume in the code
|
|
that they are unsinged.
|
|
***************************************************************************/
|
|
typedef ulong CTG; // chunk tag/type
|
|
typedef ulong CNO; // chunk number
|
|
typedef ulong CHID; // child chunk id
|
|
|
|
enum
|
|
{
|
|
fcflNil = 0x0000,
|
|
fcflWriteEnable = 0x0001,
|
|
fcflTemp = 0x0002,
|
|
fcflMark = 0x0004,
|
|
fcflAddToExtra = 0x0008,
|
|
|
|
// This flag indicates that when data is read, it should first be
|
|
// copied to the extra file (if it's not already there). This is
|
|
// for chunky files that are on a CD for which we want to cache data
|
|
// to the hard drive.
|
|
fcflReadFromExtra = 0x0010,
|
|
|
|
#ifdef DEBUG
|
|
// for AssertValid
|
|
fcflGraph = 0x4000, // check the graph structure for cycles
|
|
fcflFull = fobjAssertFull,
|
|
#endif //DEBUG
|
|
};
|
|
|
|
|
|
// chunk identification
|
|
struct CKI
|
|
{
|
|
CTG ctg;
|
|
CNO cno;
|
|
};
|
|
const BOM kbomCki = 0xF0000000;
|
|
|
|
|
|
// child chunk identification
|
|
struct KID
|
|
{
|
|
CKI cki;
|
|
CHID chid;
|
|
};
|
|
const BOM kbomKid = 0xFC000000;
|
|
|
|
|
|
/***************************************************************************
|
|
Chunky file class.
|
|
***************************************************************************/
|
|
typedef class CFL *PCFL;
|
|
#define CFL_PAR BLL
|
|
#define kclsCFL 'CFL'
|
|
class CFL : public CFL_PAR
|
|
{
|
|
RTCLASS_DEC
|
|
BLL_DEC(CFL, PcflNext)
|
|
ASSERT
|
|
MARKMEM
|
|
|
|
private:
|
|
// chunk storage
|
|
struct CSTO
|
|
{
|
|
PFIL pfil; // the file
|
|
FP fpMac; // logical end of file (for writing new chunks)
|
|
PGL pglfsm; // free space map
|
|
};
|
|
|
|
PGG _pggcrp; //the index
|
|
CSTO _csto; //the main file
|
|
CSTO _cstoExtra; //the scratch file
|
|
|
|
bool _fAddToExtra: 1;
|
|
bool _fMark: 1;
|
|
bool _fFreeMapNotRead: 1;
|
|
bool _fReadFromExtra: 1;
|
|
bool _fInvalidMainFile: 1;
|
|
|
|
// for deferred reading of the free map
|
|
FP _fpFreeMap;
|
|
long _cbFreeMap;
|
|
|
|
#ifndef CHUNK_BIG_INDEX
|
|
struct RTIE
|
|
{
|
|
CTG ctg;
|
|
CNO cno;
|
|
long rti;
|
|
};
|
|
|
|
PGL _pglrtie;
|
|
|
|
bool _FFindRtie(CTG ctg, CNO cno, RTIE *prtie = pvNil,
|
|
long *pirtie = pvNil);
|
|
#endif //!CHUNK_BIG_INDEX
|
|
|
|
// static member variables
|
|
static long _rtiLast;
|
|
static PCFL _pcflFirst;
|
|
|
|
private:
|
|
// private methods
|
|
CFL(void);
|
|
~CFL(void);
|
|
|
|
static ulong CFL::_GrffilFromGrfcfl(ulong grfcfl);
|
|
|
|
bool _FReadIndex(void);
|
|
bool _TValidIndex(void);
|
|
bool _FWriteIndex(CTG ctgCreator);
|
|
bool _FCreateExtra(void);
|
|
bool _FAllocFlo(long cb, PFLO pflo, bool fForceOnExtra = fFalse);
|
|
bool _FFindCtgCno(CTG ctg, CNO cno, long *picrp);
|
|
void _GetUniqueCno(CTG ctg, long *picrp, CNO *pcno);
|
|
void _FreeFpCb(bool fOnExtra, FP fp, long cb);
|
|
bool _FAdd(long cb, CTG ctg, CNO cno, long icrp, PBLCK pblck);
|
|
bool _FPut(long cb, CTG ctg, CNO cno, PBLCK pblck, PBLCK pblckSrc,
|
|
void *pv);
|
|
bool _FCopy(CTG ctgSrc, CNO cnoSrc, PCFL pcflDst, CNO *pcnoDst,
|
|
bool fClone);
|
|
bool _FFindMatch(CTG ctgSrc, CNO cnoSrc, PCFL pcflDst, CNO *pcnoDst);
|
|
bool _FFindCtgRti(CTG ctg, long rti, CNO cnoMin, CNO *pcnoDst);
|
|
bool _FDecRefCount(long icrp);
|
|
void _DeleteCore(long icrp);
|
|
bool _FFindChild(long icrpPar, CTG ctgChild, CNO cnoChild, CHID chid,
|
|
long *pikid);
|
|
bool _FAdoptChild(long icrpPar, long ikid, CTG ctgChild, CNO cnoChild,
|
|
CHID chid, bool fClearLoner);
|
|
void _ReadFreeMap(void);
|
|
bool _FFindChidCtg(CTG ctgPar, CNO cnoPar, CHID chid, CTG ctg, KID *pkid);
|
|
bool _FSetName(long icrp, PSTN pstn);
|
|
bool _FGetName(long icrp, PSTN pstn);
|
|
void _GetFlo(long icrp, PFLO pflo);
|
|
void _GetBlck(long icrp, PBLCK pblck);
|
|
bool _FEnsureOnExtra(long icrp, FLO *pflo = pvNil);
|
|
|
|
long _Rti(CTG ctg, CNO cno);
|
|
bool _FSetRti(CTG ctg, CNO cno, long rti);
|
|
|
|
public:
|
|
// static methods
|
|
static PCFL PcflFirst(void)
|
|
{ return _pcflFirst; }
|
|
static PCFL PcflOpen(FNI *pfni, ulong grfcfl);
|
|
static PCFL PcflCreate(FNI *pfni, ulong grfcfl);
|
|
static PCFL PcflCreateTemp(FNI *pfni = pvNil);
|
|
static PCFL PcflFromFni(FNI *pfni);
|
|
|
|
static void ClearMarks(void);
|
|
static void CloseUnmarked(void);
|
|
#ifdef CHUNK_STATS
|
|
static void DumpStn(PSTN pstn, PFIL pfil = pvNil);
|
|
#endif //CHUNK_STATS
|
|
|
|
virtual void Release(void);
|
|
bool FSetGrfcfl(ulong grfcfl, ulong grfcflMask = (ulong)~0);
|
|
void Mark(void) { _fMark = fTrue; }
|
|
void SetTemp(bool f) { _csto.pfil->SetTemp(f); }
|
|
bool FTemp(void) { return _csto.pfil->FTemp(); }
|
|
void GetFni(FNI *pfni) { _csto.pfil->GetFni(pfni); }
|
|
bool FSetFni(FNI *pfni) { return _csto.pfil->FSetFni(pfni); }
|
|
long ElError(void);
|
|
void ResetEl(long el = elNil);
|
|
bool FReopen(void);
|
|
|
|
// finding and reading chunks
|
|
bool FOnExtra(CTG ctg, CNO cno);
|
|
bool FEnsureOnExtra(CTG ctg, CNO cno);
|
|
bool FFind(CTG ctg, CNO cno, BLCK *pblck = pvNil);
|
|
bool FFindFlo(CTG ctg, CNO cno, PFLO pflo);
|
|
bool FReadHq(CTG ctg, CNO cno, HQ *phq);
|
|
void SetPacked(CTG ctg, CNO cno, bool fPacked);
|
|
bool FPacked(CTG ctg, CNO cno);
|
|
bool FUnpackData(CTG ctg, CNO cno);
|
|
bool FPackData(CTG ctg, CNO cno);
|
|
|
|
// creating and replacing chunks
|
|
bool FAdd(long cb, CTG ctg, CNO *pcno, PBLCK pblck = pvNil);
|
|
bool FAddPv(void *pv, long cb, CTG ctg, CNO *pcno);
|
|
bool FAddHq(HQ hq, CTG ctg, CNO *pcno);
|
|
bool FAddBlck(PBLCK pblckSrc, CTG ctg, CNO *pcno);
|
|
bool FPut(long cb, CTG ctg, CNO cno, PBLCK pblck = pvNil);
|
|
bool FPutPv(void *pv, long cb, CTG ctg, CNO cno);
|
|
bool FPutHq(HQ hq, CTG ctg, CNO cno);
|
|
bool FPutBlck(PBLCK pblck, CTG ctg, CNO cno);
|
|
bool FCopy(CTG ctgSrc, CNO cnoSrc, PCFL pcflDst, CNO *pcnoDst);
|
|
bool FClone(CTG ctgSrc, CNO cnoSrc, PCFL pcflDst, CNO *pcnoDst);
|
|
void SwapData(CTG ctg1, CNO cno1, CTG ctg2, CNO cno2);
|
|
void SwapChildren(CTG ctg1, CNO cno1, CTG ctg2, CNO cno2);
|
|
void Move(CTG ctg, CNO cno, CTG ctgNew, CNO cnoNew);
|
|
|
|
//creating child chunks
|
|
bool FAddChild(CTG ctgPar, CNO cnoPar, CHID chid,
|
|
long cb, CTG ctg, CNO *pcno, PBLCK pblck = pvNil);
|
|
bool FAddChildPv(CTG ctgPar, CNO cnoPar, CHID chid,
|
|
void *pv, long cb, CTG ctg, CNO *pcno);
|
|
bool FAddChildHq(CTG ctgPar, CNO cnoPar, CHID chid,
|
|
HQ hq, CTG ctg, CNO *pcno);
|
|
|
|
// deleting chunks
|
|
void Delete(CTG ctg, CNO cno);
|
|
void SetLoner(CTG ctg, CNO cno, bool fLoner);
|
|
bool FLoner(CTG ctg, CNO cno);
|
|
|
|
// chunk naming
|
|
bool FSetName(CTG ctg, CNO cno, PSTN pstn);
|
|
bool FGetName(CTG ctg, CNO cno, PSTN pstn);
|
|
|
|
// graph structure
|
|
bool FAdoptChild(CTG ctgPar, CNO cnoPar,
|
|
CTG ctgChild, CNO cnoChild, CHID chid = 0, bool fClearLoner = fTrue);
|
|
void DeleteChild(CTG ctgPar, CNO cnoPar,
|
|
CTG ctgChild, CNO cnoChild, CHID chid = 0);
|
|
long CckiRef(CTG ctg, CNO cno);
|
|
bool TIsDescendent(CTG ctg, CNO cno, CTG ctgSub, CNO cnoSub);
|
|
void ChangeChid(CTG ctgPar, CNO cnoPar, CTG ctgChild, CNO cnoChild,
|
|
CHID chidOld, CHID chidNew);
|
|
|
|
// enumerating chunks
|
|
long Ccki(void);
|
|
bool FGetCki(long icki, CKI *pcki, long *pckid = pvNil, PBLCK pblck = pvNil);
|
|
bool FGetIcki(CTG ctg, CNO cno, long *picki);
|
|
long CckiCtg(CTG ctg);
|
|
bool FGetCkiCtg(CTG ctg, long icki, CKI *pcki, long *pckid = pvNil,
|
|
PBLCK pblck = pvNil);
|
|
|
|
// enumerating child chunks
|
|
long Ckid(CTG ctgPar, CNO cnoPar);
|
|
bool FGetKid(CTG ctgPar, CNO cnoPar, long ikid, KID *pkid);
|
|
bool FGetKidChid(CTG ctgPar, CNO cnoPar, CHID chid, KID *pkid);
|
|
bool FGetKidChidCtg(CTG ctgPar, CNO cnoPar, CHID chid, CTG ctg, KID *pkid);
|
|
bool FGetIkid(CTG ctgPar, CNO cnoPar, CTG ctg, CNO cno, CHID chid, long *pikid);
|
|
|
|
// Serialized chunk forests
|
|
bool FWriteChunkTree(CTG ctg, CNO cno, PFIL pfilDst, FP fpDst, long *pcb);
|
|
static PCFL PcflReadForestFromFlo(PFLO pflo, bool fCopyData);
|
|
bool FForest(CTG ctg, CNO cno);
|
|
void SetForest(CTG ctg, CNO cno, bool fForest = fTrue);
|
|
PCFL PcflReadForest(CTG ctg, CNO cno, bool fCopyData);
|
|
|
|
// writing
|
|
bool FSave(CTG ctgCreator, FNI *pfni = pvNil);
|
|
bool FSaveACopy(CTG ctgCreator, FNI *pfni);
|
|
};
|
|
|
|
|
|
/***************************************************************************
|
|
Chunk graph enumerator
|
|
***************************************************************************/
|
|
enum
|
|
{
|
|
// inputs
|
|
fcgeNil = 0x0000,
|
|
fcgeSkipToSib = 0x0001,
|
|
|
|
// outputs
|
|
fcgePre = 0x0010,
|
|
fcgePost = 0x0020,
|
|
fcgeRoot = 0x0040,
|
|
fcgeError = 0x0080
|
|
};
|
|
|
|
#define CGE_PAR BASE
|
|
#define kclsCGE 'CGE'
|
|
class CGE : public CGE_PAR
|
|
{
|
|
RTCLASS_DEC
|
|
ASSERT
|
|
MARKMEM
|
|
NOCOPY(CGE)
|
|
|
|
private:
|
|
//data enumeration push state
|
|
struct DPS
|
|
{
|
|
KID kid;
|
|
long ikid;
|
|
};
|
|
|
|
// enumeration states
|
|
enum
|
|
{
|
|
esStart, //waiting to start the enumeration
|
|
esGo, //go to the next node
|
|
esGoNoSkip, //there are no children to skip, so ignore fcgeSkipToSib
|
|
esDone //we're done with the enumeration
|
|
};
|
|
|
|
long _es; //current state
|
|
PCFL _pcfl; //the chunky file
|
|
PGL _pgldps; //our stack of DPSs
|
|
DPS _dps; //the current DPS
|
|
|
|
public:
|
|
CGE(void);
|
|
~CGE(void);
|
|
|
|
void Init(PCFL pcfl, CTG ctg, CNO cno);
|
|
bool FNextKid(KID *pkid, CKI *pckiPar, ulong *pgrfcgeOut, ulong grfcgeIn);
|
|
};
|
|
|
|
|
|
#ifdef CHUNK_STATS
|
|
extern bool vfDumpChunkRequests;
|
|
#endif //CHUNK_STATS
|
|
|
|
#endif //!CHUNK_H
|
|
|