309 lines
11 KiB
C
309 lines
11 KiB
C
/*
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Copyright (C) 1996-2001 Id Software, Inc.
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Copyright (C) 2002-2009 John Fitzgibbons and others
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Copyright (C) 2010-2014 QuakeSpasm developers
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _Q_COMMON_H
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#define _Q_COMMON_H
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// comndef.h -- general definitions
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#if defined(_WIN32)
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#ifdef _MSC_VER
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# pragma warning(disable:4244)
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/* 'argument' : conversion from 'type1' to 'type2',
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possible loss of data */
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# pragma warning(disable:4305)
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/* 'identifier' : truncation from 'type1' to 'type2' */
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/* in our case, truncation from 'double' to 'float' */
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# pragma warning(disable:4267)
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/* 'var' : conversion from 'size_t' to 'type',
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possible loss of data (/Wp64 warning) */
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#endif /* _MSC_VER */
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#endif /* _WIN32 */
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#undef min
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#undef max
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#define q_min(a, b) (((a) < (b)) ? (a) : (b))
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#define q_max(a, b) (((a) > (b)) ? (a) : (b))
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#define CLAMP(_minval, x, _maxval) \
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((x) < (_minval) ? (_minval) : \
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(x) > (_maxval) ? (_maxval) : (x))
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typedef struct sizebuf_s
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{
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qboolean allowoverflow; // if false, do a Sys_Error
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qboolean overflowed; // set to true if the buffer size failed
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byte *data;
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int maxsize;
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int cursize;
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} sizebuf_t;
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void SZ_Alloc (sizebuf_t *buf, int startsize);
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void SZ_Free (sizebuf_t *buf);
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void SZ_Clear (sizebuf_t *buf);
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void *SZ_GetSpace (sizebuf_t *buf, int length);
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void SZ_Write (sizebuf_t *buf, const void *data, int length);
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void SZ_Print (sizebuf_t *buf, const char *data); // strcats onto the sizebuf
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//============================================================================
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typedef struct link_s
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{
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struct link_s *prev, *next;
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} link_t;
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void ClearLink (link_t *l);
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void RemoveLink (link_t *l);
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void InsertLinkBefore (link_t *l, link_t *before);
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void InsertLinkAfter (link_t *l, link_t *after);
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// (type *)STRUCT_FROM_LINK(link_t *link, type, member)
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// ent = STRUCT_FROM_LINK(link,entity_t,order)
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// FIXME: remove this mess!
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#define STRUCT_FROM_LINK(l,t,m) ((t *)((byte *)l - (intptr_t)&(((t *)0)->m)))
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//============================================================================
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extern qboolean host_bigendian;
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extern short (*BigShort) (short l);
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extern short (*LittleShort) (short l);
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extern int (*BigLong) (int l);
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extern int (*LittleLong) (int l);
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extern float (*BigFloat) (float l);
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extern float (*LittleFloat) (float l);
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//============================================================================
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void MSG_WriteChar (sizebuf_t *sb, int c);
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void MSG_WriteByte (sizebuf_t *sb, int c);
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void MSG_WriteShort (sizebuf_t *sb, int c);
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void MSG_WriteLong (sizebuf_t *sb, int c);
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void MSG_WriteFloat (sizebuf_t *sb, float f);
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void MSG_WriteString (sizebuf_t *sb, const char *s);
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void MSG_WriteCoord (sizebuf_t *sb, float f, unsigned int flags);
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void MSG_WriteAngle (sizebuf_t *sb, float f, unsigned int flags);
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void MSG_WriteAngle16 (sizebuf_t *sb, float f, unsigned int flags); //johnfitz
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extern int msg_readcount;
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extern qboolean msg_badread; // set if a read goes beyond end of message
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void MSG_BeginReading (void);
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int MSG_ReadChar (void);
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int MSG_ReadByte (void);
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int MSG_ReadShort (void);
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int MSG_ReadLong (void);
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float MSG_ReadFloat (void);
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const char *MSG_ReadString (void);
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float MSG_ReadCoord (unsigned int flags);
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float MSG_ReadAngle (unsigned int flags);
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float MSG_ReadAngle16 (unsigned int flags); //johnfitz
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//============================================================================
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void Q_memset (void *dest, int fill, size_t count);
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void Q_memcpy (void *dest, const void *src, size_t count);
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int Q_memcmp (const void *m1, const void *m2, size_t count);
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void Q_strcpy (char *dest, const char *src);
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void Q_strncpy (char *dest, const char *src, int count);
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int Q_strlen (const char *str);
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char *Q_strrchr (const char *s, char c);
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void Q_strcat (char *dest, const char *src);
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int Q_strcmp (const char *s1, const char *s2);
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int Q_strncmp (const char *s1, const char *s2, int count);
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int Q_atoi (const char *str);
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float Q_atof (const char *str);
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#include "strl_fn.h"
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/* locale-insensitive strcasecmp replacement functions: */
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extern int q_strcasecmp (const char * s1, const char * s2);
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extern int q_strncasecmp (const char *s1, const char *s2, size_t n);
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/* locale-insensitive case-insensitive alternative to strstr */
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extern char *q_strcasestr(const char *haystack, const char *needle);
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/* locale-insensitive strlwr/upr replacement functions: */
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extern char *q_strlwr (char *str);
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extern char *q_strupr (char *str);
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/* snprintf, vsnprintf : always use our versions. */
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extern int q_snprintf (char *str, size_t size, const char *format, ...) FUNC_PRINTF(3,4);
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extern int q_vsnprintf(char *str, size_t size, const char *format, va_list args) FUNC_PRINTF(3,0);
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//============================================================================
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extern char com_token[1024];
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extern qboolean com_eof;
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const char *COM_Parse (const char *data);
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extern int com_argc;
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extern char **com_argv;
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extern int safemode;
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/* safe mode: in true, the engine will behave as if one
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of these arguments were actually on the command line:
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-nosound, -nocdaudio, -nomidi, -stdvid, -dibonly,
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-nomouse, -nojoy, -nolan
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*/
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int COM_CheckParm (const char *parm);
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void COM_Init (void);
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void COM_InitArgv (int argc, char **argv);
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void COM_InitFilesystem (void);
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const char *COM_SkipPath (const char *pathname);
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void COM_StripExtension (const char *in, char *out, size_t outsize);
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void COM_FileBase (const char *in, char *out, size_t outsize);
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void COM_AddExtension (char *path, const char *extension, size_t len);
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#if 0 /* COM_DefaultExtension can be dangerous */
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void COM_DefaultExtension (char *path, const char *extension, size_t len);
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#endif
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const char *COM_FileGetExtension (const char *in); /* doesn't return NULL */
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void COM_ExtractExtension (const char *in, char *out, size_t outsize);
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void COM_CreatePath (char *path);
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char *va (const char *format, ...) FUNC_PRINTF(1,2);
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// does a varargs printf into a temp buffer
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//============================================================================
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// QUAKEFS
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typedef struct
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{
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char name[MAX_QPATH];
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int filepos, filelen;
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} packfile_t;
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typedef struct pack_s
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{
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char filename[MAX_OSPATH];
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int handle;
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int numfiles;
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packfile_t *files;
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} pack_t;
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typedef struct searchpath_s
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{
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unsigned int path_id; // identifier assigned to the game directory
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// Note that <install_dir>/game1 and
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// <userdir>/game1 have the same id.
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char filename[MAX_OSPATH];
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pack_t *pack; // only one of filename / pack will be used
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struct searchpath_s *next;
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} searchpath_t;
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extern searchpath_t *com_searchpaths;
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extern searchpath_t *com_base_searchpaths;
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extern int com_filesize;
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struct cache_user_s;
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extern char com_basedir[MAX_OSPATH];
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extern char com_gamedir[MAX_OSPATH];
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extern int file_from_pak; // global indicating that file came from a pak
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void COM_WriteFile (const char *filename, const void *data, int len);
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int COM_OpenFile (const char *filename, int *handle, unsigned int *path_id);
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int COM_FOpenFile (const char *filename, FILE **file, unsigned int *path_id);
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qboolean COM_FileExists (const char *filename, unsigned int *path_id);
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void COM_CloseFile (int h);
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// these procedures open a file using COM_FindFile and loads it into a proper
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// buffer. the buffer is allocated with a total size of com_filesize + 1. the
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// procedures differ by their buffer allocation method.
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byte *COM_LoadStackFile (const char *path, void *buffer, int bufsize,
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unsigned int *path_id);
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// uses the specified stack stack buffer with the specified size
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// of bufsize. if bufsize is too short, uses temp hunk. the bufsize
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// must include the +1
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byte *COM_LoadTempFile (const char *path, unsigned int *path_id);
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// allocates the buffer on the temp hunk.
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byte *COM_LoadHunkFile (const char *path, unsigned int *path_id);
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// allocates the buffer on the hunk.
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byte *COM_LoadZoneFile (const char *path, unsigned int *path_id);
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// allocates the buffer on the zone.
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void COM_LoadCacheFile (const char *path, struct cache_user_s *cu,
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unsigned int *path_id);
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// uses cache mem for allocating the buffer.
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byte *COM_LoadMallocFile (const char *path, unsigned int *path_id);
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// allocates the buffer on the system mem (malloc).
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// Opens the given path directly, ignoring search paths.
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// Returns NULL on failure, or else a '\0'-terminated malloc'ed buffer.
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// Loads in "t" mode so CRLF to LF translation is performed on Windows.
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byte *COM_LoadMallocFile_TextMode_OSPath (const char *path, long *len_out);
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// Attempts to parse an int, followed by a newline.
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// Returns advanced buffer position.
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// Doesn't signal parsing failure, but this is not needed for savegame loading.
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const char *COM_ParseIntNewline(const char *buffer, int *value);
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// Attempts to parse a float followed by a newline.
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// Returns advanced buffer position.
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const char *COM_ParseFloatNewline(const char *buffer, float *value);
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// Parse a string of non-whitespace into com_token, then tries to consume a
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// newline. Returns advanced buffer position.
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const char *COM_ParseStringNewline(const char *buffer);
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/* The following FS_*() stdio replacements are necessary if one is
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* to perform non-sequential reads on files reopened on pak files
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* because we need the bookkeeping about file start/end positions.
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* Allocating and filling in the fshandle_t structure is the users'
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* responsibility when the file is initially opened. */
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typedef struct _fshandle_t
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{
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FILE *file;
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qboolean pak; /* is the file read from a pak */
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long start; /* file or data start position */
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long length; /* file or data size */
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long pos; /* current position relative to start */
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} fshandle_t;
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size_t FS_fread(void *ptr, size_t size, size_t nmemb, fshandle_t *fh);
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int FS_fseek(fshandle_t *fh, long offset, int whence);
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long FS_ftell(fshandle_t *fh);
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void FS_rewind(fshandle_t *fh);
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int FS_feof(fshandle_t *fh);
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int FS_ferror(fshandle_t *fh);
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int FS_fclose(fshandle_t *fh);
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int FS_fgetc(fshandle_t *fh);
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char *FS_fgets(char *s, int size, fshandle_t *fh);
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long FS_filelength (fshandle_t *fh);
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extern struct cvar_s registered;
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extern qboolean standard_quake, rogue, hipnotic;
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extern qboolean fitzmode;
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/* if true, run in fitzquake mode disabling custom quakespasm hacks */
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#endif /* _Q_COMMON_H */
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