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https://github.com/ZDoom/qzdoom.git
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336 lines
10 KiB
C++
336 lines
10 KiB
C++
/*
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** farchive.h
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#ifndef __FARCHIVE_H__
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#define __FARCHIVE_H__
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#include <stdio.h>
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#include "dobject.h"
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#include "r_state.h"
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class FFile
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{
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public:
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enum EOpenMode
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{
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EReading,
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EWriting,
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ENotOpen
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};
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enum ESeekPos
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{
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ESeekSet,
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ESeekRelative,
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ESeekEnd
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};
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virtual ~FFile () {}
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virtual bool Open (const char *name, EOpenMode mode) = 0;
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virtual void Close () = 0;
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virtual void Flush () = 0;
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virtual EOpenMode Mode () const = 0;
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virtual bool IsPersistent () const = 0;
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virtual bool IsOpen () const = 0;
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virtual FFile& Write (const void *, unsigned int) = 0;
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virtual FFile& Read (void *, unsigned int) = 0;
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virtual unsigned int Tell () const = 0;
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virtual FFile& Seek (int, ESeekPos) = 0;
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inline FFile& Seek (unsigned int i, ESeekPos p) { return Seek ((int)i, p); }
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};
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class FCompressedFile : public FFile
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{
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public:
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FCompressedFile ();
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FCompressedFile (const char *name, EOpenMode mode, bool dontcompress = false);
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FCompressedFile (FILE *file, EOpenMode mode, bool dontcompress = false, bool postopen=true);
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~FCompressedFile ();
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bool Open (const char *name, EOpenMode mode);
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void Close ();
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void Flush ();
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EOpenMode Mode () const;
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bool IsPersistent () const { return true; }
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bool IsOpen () const;
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unsigned int GetSize () const { return m_BufferSize; }
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FFile &Write (const void *, unsigned int);
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FFile &Read (void *, unsigned int);
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unsigned int Tell () const;
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FFile &Seek (int, ESeekPos);
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protected:
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unsigned int m_Pos;
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unsigned int m_BufferSize;
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unsigned int m_MaxBufferSize;
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unsigned char *m_Buffer;
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bool m_NoCompress;
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EOpenMode m_Mode;
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FILE *m_File;
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void Implode ();
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void Explode ();
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virtual bool FreeOnExplode () { return true; }
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void PostOpen ();
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private:
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void BeEmpty ();
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};
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class FCompressedMemFile : public FCompressedFile
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{
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public:
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FCompressedMemFile ();
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FCompressedMemFile (FILE *file); // Create for reading
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~FCompressedMemFile ();
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bool Open (const char *name, EOpenMode mode); // Works for reading only
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bool Open (void *memblock); // Open for reading only
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bool Open (); // Open for writing only
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bool Reopen (); // Re-opens imploded file for reading only
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void Close ();
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bool IsOpen () const;
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void GetSizes(unsigned int &one, unsigned int &two) const;
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void Serialize (FArchive &arc);
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protected:
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bool FreeOnExplode () { return !m_SourceFromMem; }
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private:
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bool m_SourceFromMem;
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unsigned char *m_ImplodedBuffer;
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};
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class FPNGChunkFile : public FCompressedFile
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{
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public:
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FPNGChunkFile (FILE *file, DWORD id); // Create for writing
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FPNGChunkFile (FILE *file, DWORD id, size_t chunklen); // Create for reading
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void Close ();
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private:
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DWORD m_ChunkID;
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};
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class FArchive
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{
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public:
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FArchive (FFile &file);
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virtual ~FArchive ();
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inline bool IsLoading () const { return m_Loading; }
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inline bool IsStoring () const { return m_Storing; }
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inline bool IsPeristent () const { return m_Persistent; }
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void SetHubTravel () { m_HubTravel = true; }
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void Close ();
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virtual void Write (const void *mem, unsigned int len);
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virtual void Read (void *mem, unsigned int len);
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void WriteString (const char *str);
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void WriteCount (DWORD count);
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DWORD ReadCount ();
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void UserWriteClass (const PClass *info);
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void UserReadClass (const PClass *&info);
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FArchive& operator<< (BYTE &c);
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FArchive& operator<< (WORD &s);
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FArchive& operator<< (DWORD &i);
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FArchive& operator<< (QWORD &i);
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FArchive& operator<< (QWORD_UNION &i) { return operator<< (i.AsOne); }
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FArchive& operator<< (float &f);
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FArchive& operator<< (double &d);
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FArchive& operator<< (char *&str);
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FArchive& operator<< (FName &n);
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FArchive& operator<< (FString &str);
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FArchive& SerializePointer (void *ptrbase, BYTE **ptr, DWORD elemSize);
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FArchive& SerializeObject (DObject *&object, PClass *type);
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FArchive& WriteObject (DObject *obj);
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FArchive& ReadObject (DObject *&obj, PClass *wanttype);
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void WriteName (const char *name);
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const char *ReadName (); // The returned name disappears with the archive, unlike strings
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void WriteSprite (int spritenum);
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int ReadSprite ();
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inline FArchive& operator<< (SBYTE &c) { return operator<< ((BYTE &)c); }
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inline FArchive& operator<< (SWORD &s) { return operator<< ((WORD &)s); }
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inline FArchive& operator<< (SDWORD &i) { return operator<< ((DWORD &)i); }
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inline FArchive& operator<< (SQWORD &i) { return operator<< ((QWORD &)i); }
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inline FArchive& operator<< (unsigned char *&str) { return operator<< ((char *&)str); }
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inline FArchive& operator<< (signed char *&str) { return operator<< ((char *&)str); }
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inline FArchive& operator<< (bool &b) { return operator<< ((BYTE &)b); }
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inline FArchive& operator<< (DObject* &object) { return ReadObject (object, RUNTIME_CLASS(DObject)); }
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protected:
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enum { EObjectHashSize = 137 };
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DWORD FindObjectIndex (const DObject *obj) const;
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DWORD MapObject (const DObject *obj);
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DWORD WriteClass (const PClass *info);
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const PClass *ReadClass ();
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const PClass *ReadClass (const PClass *wanttype);
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const PClass *ReadStoredClass (const PClass *wanttype);
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DWORD HashObject (const DObject *obj) const;
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DWORD AddName (const char *name);
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DWORD AddName (unsigned int start); // Name has already been added to storage
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DWORD FindName (const char *name) const;
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DWORD FindName (const char *name, unsigned int bucket) const;
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bool m_Persistent; // meant for persistent storage (disk)?
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bool m_Loading; // extracting objects?
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bool m_Storing; // inserting objects?
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bool m_HubTravel; // travelling inside a hub?
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FFile *m_File; // unerlying file object
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DWORD m_ObjectCount; // # of objects currently serialized
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DWORD m_MaxObjectCount;
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DWORD m_ClassCount; // # of unique classes currently serialized
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struct TypeMap
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{
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const PClass *toCurrent; // maps archive type index to execution type index
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DWORD toArchive; // maps execution type index to archive type index
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enum { NO_INDEX = 0xffffffff };
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} *m_TypeMap;
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struct ObjectMap
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{
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const DObject *object;
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DWORD hashNext;
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} *m_ObjectMap;
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DWORD m_ObjectHash[EObjectHashSize];
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struct NameMap
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{
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DWORD StringStart; // index into m_NameStorage
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DWORD HashNext; // next in hash bucket
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enum { NO_INDEX = 0xffffffff };
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};
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TArray<NameMap> m_Names;
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TArray<char> m_NameStorage;
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unsigned int m_NameHash[EObjectHashSize];
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int *m_SpriteMap;
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size_t m_NumSprites;
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FArchive ();
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void AttachToFile (FFile &file);
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private:
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FArchive (const FArchive &) {}
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void operator= (const FArchive &) {}
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};
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// Create an FPNGChunkFile and FArchive in one step
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class FPNGChunkArchive : public FArchive
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{
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public:
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FPNGChunkArchive (FILE *file, DWORD chunkid);
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FPNGChunkArchive (FILE *file, DWORD chunkid, size_t chunklen);
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~FPNGChunkArchive ();
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FPNGChunkFile Chunk;
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};
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inline FArchive &operator<< (FArchive &arc, PalEntry &p)
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{
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return arc << p.a << p.r << p.g << p.b;
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}
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template<class T>
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inline FArchive &operator<< (FArchive &arc, T* &object)
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{
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return arc.SerializeObject ((DObject*&)object, RUNTIME_CLASS(T));
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}
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FArchive &operator<< (FArchive &arc, const PClass * &info);
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class FFont;
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FArchive &SerializeFFontPtr (FArchive &arc, FFont* &font);
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template<> inline FArchive &operator<< <FFont> (FArchive &arc, FFont* &font)
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{
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return SerializeFFontPtr (arc, font);
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}
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struct FStrifeDialogueNode;
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struct FSwitchDef;
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struct FDoorAnimation;
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template<> FArchive &operator<< (FArchive &arc, FStrifeDialogueNode *&node);
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template<> FArchive &operator<< (FArchive &arc, FSwitchDef* &sw);
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template<> FArchive &operator<< (FArchive &arc, FDoorAnimation* &da);
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template<class T,class TT>
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inline FArchive &operator<< (FArchive &arc, TArray<T,TT> &self)
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{
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if (arc.IsStoring())
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{
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arc.WriteCount(self.Count);
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}
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else
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{
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DWORD numStored = arc.ReadCount();
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self.Resize(numStored);
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}
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for (unsigned int i = 0; i < self.Count; ++i)
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{
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arc << self.Array[i];
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}
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return arc;
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}
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struct sector_t;
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struct line_t;
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struct vertex_t;
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struct side_t;
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FArchive &operator<< (FArchive &arc, sector_t *&sec);
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FArchive &operator<< (FArchive &arc, const sector_t *&sec);
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FArchive &operator<< (FArchive &arc, line_t *&line);
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FArchive &operator<< (FArchive &arc, vertex_t *&vert);
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FArchive &operator<< (FArchive &arc, side_t *&side);
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#endif //__FARCHIVE_H__
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