CnC_Red_Alert/WINVQ/VQM32/MIXFILE.H

106 lines
2.9 KiB
C

/*
** Command & Conquer Red Alert(tm)
** Copyright 2025 Electronic Arts Inc.
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef VQMMIXFILE_H
#define VQMMIXFILE_H
/****************************************************************************
*
* 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
*
*----------------------------------------------------------------------------
*
* FILE
* mixfile.h
*
* DESCRIPTION
* A mix file is basically a group of files concatinated together
* proceeded by a header describing where in the file each individual
* entry is located. These definitions are provided to simplify the access
* to these file entries.
*
* PROGRAMMER
* Denzil E. Long, Jr.
*
* DATE
* January 26, 1995
*
****************************************************************************/
/* Disable structure alignment.*/
#ifdef __WATCOMC__
#pragma pack(1);
#endif
/*---------------------------------------------------------------------------
* STRUCTURE DEFINITIONS
*-------------------------------------------------------------------------*/
/* MIXHeader: Mix file data header.
*
* Count - Number of entries contained in this mix file.
* Size - Size of Mix file.
*/
typedef struct _MIXHeader {
short Count;
long Size;
} MIXHeader;
/* MIXSubBlock: Mix file entry descriptor.
*
* CRC - Unique entry identifier.
* Offset - Offset from beginning of data segment to entry.
* Size - Size of entry.
*/
typedef struct _MIXSubBlock {
long CRC;
long Offset;
long Size;
} MIXSubBlock;
/* MIXHandle: Mix file handle.
*
* Name - Pointer to the name of the mix file this handle is for.
* Size - Size of entire mix file.
* FH - DOS file handle of opened entry.
* Count - Number of files contained in this mix.
* Entries - Array of 'Count' MIXSubBlock structure entries.
*/
typedef struct _MIXHandle {
char *Name;
long Size;
long FH;
long Count;
MIXSubBlock Entries[];
} MIXHandle;
/*---------------------------------------------------------------------------
* PROTOTYPES
*-------------------------------------------------------------------------*/
MIXHandle *OpenMix(char *name);
void CloseMix(MIXHandle *mix);
long OpenMixEntry(MIXHandle *mix, char *name);
/* Restore original alignment */
#ifdef __WATCOMC__
#pragma pack();
#endif
#endif /* VQMMIXFILE_H */