RedAlert/CODE/LZOCONF.H

/*
**	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/>.
*/

/* lzoconf.h -- configuration for the LZO real-time data compression library

   This file is part of the LZO real-time data compression library.

   Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer

   The LZO library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   The LZO library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the LZO library; see the file COPYING.LIB.
   If not, write to the Free Software Foundation, Inc.,
   675 Mass Ave, Cambridge, MA 02139, USA.

   Markus F.X.J. Oberhumer
   [email protected]
 */


#ifndef __LZOCONF_H
#define __LZOCONF_H

#define LZO_VERSION             0x0200
#define LZO_VERSION_STRING      "0.20"
#define LZO_VERSION_DATE        "11 Aug 1996"


#include <limits.h>             /* CHAR_BIT, UINT_MAX, ULONG_MAX */
#if !defined(CHAR_BIT) || (CHAR_BIT != 8)
#  error invalid CHAR_BIT
#endif

//#ifdef __cplusplus
//extern "C" {
//#endif


/***********************************************************************
// defines
************************************************************************/

#if defined(__MSDOS__) || defined(MSDOS)
#  define __LZO_MSDOS
#  if (UINT_MAX < 0xffffffffL)
#    define __LZO_MSDOS16 
#  endif
#endif


/***********************************************************************
// integral and pointer types
************************************************************************/

/* Unsigned type with 32 bits or more */
#if (UINT_MAX >= 0xffffffffL)
   typedef unsigned int     lzo_uint;
   typedef int              lzo_int;
#  define LZO_UINT_MAX      UINT_MAX
#elif (ULONG_MAX >= 0xffffffffL)
   typedef unsigned long    lzo_uint;
   typedef long             lzo_int;
#  define LZO_UINT_MAX      ULONG_MAX
#else
#  error lzo_uint
#endif


/* Memory model that allows to access memory at offsets of lzo_uint.
 * Huge pointers (16 bit MSDOS) are somewhat slow, but they work
 * fine and I really don't care about 16 bit compiler
 * optimizations nowadays.
 */
#if (LZO_UINT_MAX <= UINT_MAX)
#  define __LZO_MMODEL
#elif defined(__LZO_MSDOS16)
#  define __LZO_MMODEL      huge
#  define __LZO_ENTRY       __cdecl
#else
#  error __LZO_MMODEL
#endif


/* no typedef here because of const-pointer issues */
#define lzo_byte            unsigned char __LZO_MMODEL
#define lzo_voidp           void __LZO_MMODEL *
#define lzo_bytep           unsigned char __LZO_MMODEL *
#define lzo_uintp           lzo_uint __LZO_MMODEL *
#define lzo_intp            lzo_int __LZO_MMODEL *
#define lzo_voidpp          lzo_voidp __LZO_MMODEL * 
#define lzo_bytepp          lzo_bytep __LZO_MMODEL * 


/* Unsigned type that can store all bits of a lzo_voidp */
typedef unsigned long       lzo_ptr_t;

/* Align a pointer on a boundary that is a multiple of 'size' */
#define LZO_ALIGN(ptr,size) \
    ((lzo_voidp) (((lzo_ptr_t)(ptr) + (size)-1) & ~((lzo_ptr_t)((size)-1))))


/***********************************************************************
// function types
************************************************************************/

//#ifdef __cplusplus
//#  define LZO_EXTERN_C          extern "C"
//#else
#  define LZO_EXTERN_C          extern
//#endif


#if !defined(__LZO_ENTRY)       /* calling convention */
#  define __LZO_ENTRY
#endif
#if !defined(__LZO_EXPORT)      /* DLL export (and maybe size) information */
#  define __LZO_EXPORT
#endif

#if !defined(LZO_EXTERN)
#  define LZO_EXTERN(_rettype)  LZO_EXTERN_C _rettype __LZO_ENTRY __LZO_EXPORT
#endif


typedef int __LZO_ENTRY
(__LZO_EXPORT *lzo_compress_t)  ( const lzo_byte *src, lzo_uint  src_len,
                                        lzo_byte *dst, lzo_uint *dst_len,
                                        lzo_voidp wrkmem );

typedef int __LZO_ENTRY
(__LZO_EXPORT *lzo_decompress_t)( const lzo_byte *src, lzo_uint  src_len,
                                        lzo_byte *dst, lzo_uint *dst_len,
                                        lzo_voidp wrkmem );


/* a progress indicator callback function */
typedef void __LZO_ENTRY
(__LZO_EXPORT *lzo_progress_callback_t)(lzo_uint,lzo_uint);


/***********************************************************************
// error codes and prototypes
************************************************************************/

/* Error codes for the compression/decompression functions. Negative
 * values are errors, positive values will be used for special but
 * normal events.
 */
#define LZO_E_OK                    0
#define LZO_E_ERROR                 (-1)
#define LZO_E_NOT_COMPRESSIBLE      (-2)    /* not used right now */
#define LZO_E_EOF_NOT_FOUND         (-3)
#define LZO_E_INPUT_OVERRUN         (-4)
#define LZO_E_OUTPUT_OVERRUN        (-5)
#define LZO_E_LOOKBEHIND_OVERRUN    (-6)
#define LZO_E_OUT_OF_MEMORY         (-7)    /* not used right now */


/* this should be the first function you call. Check the return code ! */
LZO_EXTERN(int) lzo_init(void);

/* version functions (useful for shared libraries) */
LZO_EXTERN(unsigned) lzo_version(void);
LZO_EXTERN(const char *) lzo_version_string(void);

/* string functions */
LZO_EXTERN(int)
lzo_memcmp(const lzo_voidp _s1, const lzo_voidp _s2, lzo_uint _len);
LZO_EXTERN(lzo_voidp)
lzo_memcpy(lzo_voidp _dest, const lzo_voidp _src, lzo_uint _len);
LZO_EXTERN(lzo_voidp)
lzo_memmove(lzo_voidp _dest, const lzo_voidp _src, lzo_uint _len);
LZO_EXTERN(lzo_voidp)
lzo_memset(lzo_voidp _s, int _c, lzo_uint _len);

/* checksum functions */
LZO_EXTERN(lzo_uint)
lzo_adler32(lzo_uint _adler, const lzo_byte *_buf, lzo_uint _len);

/* misc. */
LZO_EXTERN(int) lzo_assert(int _expr);
LZO_EXTERN(int) _lzo_config_check(void);


//#ifdef __cplusplus
//} /* extern "C" */
//#endif

#endif /* already included */

/*
vi:ts=4
*/