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/*

Copyright (C) 1996-1997 Id Software, 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 2

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, write to the Free Software

Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

// comndef.h  -- general definitions

#if !defined BYTE_DEFINED

typedef unsigned char 		byte;

#define BYTE_DEFINED 1

#endif

#undef true

#undef false

typedef enum {false, true}	qboolean;

//============================================================================

typedef struct sizebuf_s

{

	qboolean	allowoverflow;	// if false, do a Sys_Error

	qboolean	overflowed;		// set to true if the buffer size failed

	byte	*data;

	int		maxsize;

	int		cursize;

} sizebuf_t;

void SZ_Alloc (sizebuf_t *buf, int startsize);

void SZ_Free (sizebuf_t *buf);

void SZ_Clear (sizebuf_t *buf);

void *SZ_GetSpace (sizebuf_t *buf, int length);

void SZ_Write (sizebuf_t *buf, void *data, int length);

void SZ_Print (sizebuf_t *buf, char *data);	// strcats onto the sizebuf

//============================================================================

typedef struct link_s

{

	struct link_s	*prev, *next;

} link_t;

void ClearLink (link_t *l);

void RemoveLink (link_t *l);

void InsertLinkBefore (link_t *l, link_t *before);

void InsertLinkAfter (link_t *l, link_t *after);

// (type *)STRUCT_FROM_LINK(link_t *link, type, member)

// ent = STRUCT_FROM_LINK(link,entity_t,order)

// FIXME: remove this mess!

#define	STRUCT_FROM_LINK(l,t,m) ((t *)((byte *)l - (int)&(((t *)0)->m)))

//============================================================================

#ifndef NULL

#define NULL ((void *)0)

#endif

#define Q_MAXCHAR ((char)0x7f)

#define Q_MAXSHORT ((short)0x7fff)

#define Q_MAXINT	((int)0x7fffffff)

#define Q_MAXLONG ((int)0x7fffffff)

#define Q_MAXFLOAT ((int)0x7fffffff)

#define Q_MINCHAR ((char)0x80)

#define Q_MINSHORT ((short)0x8000)

#define Q_MININT 	((int)0x80000000)

#define Q_MINLONG ((int)0x80000000)

#define Q_MINFLOAT ((int)0x7fffffff)

//============================================================================

extern	qboolean		bigendien;

extern	short	(*BigShort) (short l);

extern	short	(*LittleShort) (short l);

extern	int	(*BigLong) (int l);

extern	int	(*LittleLong) (int l);

extern	float	(*BigFloat) (float l);

extern	float	(*LittleFloat) (float l);

//============================================================================

void MSG_WriteChar (sizebuf_t *sb, int c);

void MSG_WriteByte (sizebuf_t *sb, int c);

void MSG_WriteShort (sizebuf_t *sb, int c);

void MSG_WriteLong (sizebuf_t *sb, int c);

void MSG_WriteFloat (sizebuf_t *sb, float f);

void MSG_WriteString (sizebuf_t *sb, char *s);

void MSG_WriteCoord (sizebuf_t *sb, float f);

void MSG_WriteAngle (sizebuf_t *sb, float f);

extern	int			msg_readcount;

extern	qboolean	msg_badread;		// set if a read goes beyond end of message

void MSG_BeginReading (void);

int MSG_ReadChar (void);

int MSG_ReadByte (void);

int MSG_ReadShort (void);

int MSG_ReadLong (void);

float MSG_ReadFloat (void);

char *MSG_ReadString (void);

float MSG_ReadCoord (void);

float MSG_ReadAngle (void);

//============================================================================

void Q_memset (void *dest, int fill, int count);

void Q_memcpy (void *dest, void *src, int count);

int Q_memcmp (void *m1, void *m2, int count);

void Q_strcpy (char *dest, char *src);

void Q_strncpy (char *dest, char *src, int count);

int Q_strlen (char *str);

char *Q_strrchr (char *s, char c);

void Q_strcat (char *dest, char *src);

int Q_strcmp (char *s1, char *s2);

int Q_strncmp (char *s1, char *s2, int count);

int Q_strcasecmp (char *s1, char *s2);

int Q_strncasecmp (char *s1, char *s2, int n);

int	Q_atoi (char *str);

float Q_atof (char *str);

//============================================================================

extern	char		com_token[1024];

extern	qboolean	com_eof;

char *COM_Parse (char *data);

extern	int		com_argc;

extern	char	**com_argv;

int COM_CheckParm (char *parm);

void COM_Init (char *path);

void COM_InitArgv (int argc, char **argv);

char *COM_SkipPath (char *pathname);

void COM_StripExtension (char *in, char *out);

void COM_FileBase (char *in, char *out);

void COM_DefaultExtension (char *path, char *extension);

char	*va(char *format, ...);

// does a varargs printf into a temp buffer

//============================================================================

extern int com_filesize;

struct cache_user_s;

extern	char	com_gamedir[MAX_OSPATH];

void COM_WriteFile (char *filename, void *data, int len);

int COM_OpenFile (char *filename, int *hndl);

int COM_FOpenFile (char *filename, FILE **file);

void COM_CloseFile (int h);

byte *COM_LoadStackFile (char *path, void *buffer, int bufsize);

byte *COM_LoadTempFile (char *path);

byte *COM_LoadHunkFile (char *path);

void COM_LoadCacheFile (char *path, struct cache_user_s *cu);

extern	struct cvar_s	registered;

extern qboolean		standard_quake, rogue, hipnotic;