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https://github.com/electronicarts/CnC_Remastered_Collection
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03416d24e1
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
112 lines
5 KiB
C++
112 lines
5 KiB
C++
//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/* $Header: F:\projects\c&c\vcs\code\ccfile.h_v 2.18 16 Oct 1995 16:45:28 JOE_BOSTIC $ */
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : Command & Conquer *
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* *
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* File Name : CCFILE.H *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : October 17, 1994 *
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* *
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* Last Update : October 17, 1994 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#ifndef CCFILE_H
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#define CCFILE_H
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#include <wwlib32.h>
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#include <limits.h>
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#include "mixfile.h"
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#include "cdfile.h"
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/*
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** This derived class for file access knows about mixfiles (packed files). It can handle opening
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** a file that is embedded within a mixfile. This is true if the mixfile is cached or resides on
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** disk. It is functionally similar to pakfiles, except much faster and less RAM intensive.
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*/
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class CCFileClass : public CDFileClass
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{
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public:
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CCFileClass(char const *filename);
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CCFileClass(void);
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virtual ~CCFileClass(void) {};
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// Delete should be overloaded here as well. Don't allow deletes of mixfiles.
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virtual int Open(char const *filename, int rights=READ) {Set_Name(filename);return Open(rights);};
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virtual int Open(int rights=READ);
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virtual int Is_Open(void) const;
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virtual int Is_Available(int forced=false);
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virtual long Read(void *buffer, long size);
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virtual long Seek(long pos, int dir=SEEK_CUR);
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virtual long Size(void);
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virtual long Write(void const *buffer, long size);
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virtual void Close(void);
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virtual void Error(int error, int canretry = false, char const * filename=NULL);
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private:
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/*
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** This flag indicates that the file is part of a mixfile and the mixfile resides on
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** disk. The file handle for this file is a legitimate DOS handle, although special
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** handling is necessary that takes into account the embedded nature of the file.
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*/
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bool FromDisk;
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/*
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** This indicates the file is actually part of a resident image of the mixfile
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** itself. In this case, the embedded file handle is invalid. All file access actually
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** gets routed through the cached version of the file. This is a pointer to the start
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** of the RAM image of the file.
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*/
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void * Pointer;
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/*
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** This is the starting offset of the beginning of the file. This value is only valid
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** if the file is part of a mixfile that resides on disk. It serves as the counterpart
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** to the "Pointer" variable.
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*/
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long Start;
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/*
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** This is the current seek position of the file. It is duplicated here if the file is
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** part of a mixfile since the DOS seek position is not accurate. This value will
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** range from zero to the size of the file in bytes.
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*/
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long Position;
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/*
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** This is the size of the file if it was embedded in a mixfile. The size must be manually
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** kept track of because the DOS file size is invalid.
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*/
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long Length;
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// Force these to never be invoked.
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CCFileClass const operator = (CCFileClass const & c);
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CCFileClass (CCFileClass const & ) {};
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};
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#endif
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