304 lines
11 KiB
C
304 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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bool allowoverflow; // if false, do a Sys_Error
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bool overflowed; // set to true if the buffer size failed
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byte *data;
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int32_t maxsize;
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int32_t cursize;
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} sizebuf_t;
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void SZ_Alloc(sizebuf_t *buf, int32_t 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, int32_t length);
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void SZ_Write(sizebuf_t *buf, const void *data, int32_t 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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//============================================================================
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extern bool host_bigendian;
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extern int16_t (*BigShort)(int16_t l);
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extern int16_t (*LittleShort)(int16_t l);
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extern int32_t (*BigLong)(int32_t l);
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extern int32_t (*LittleLong)(int32_t 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, int32_t c);
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void MSG_WriteByte(sizebuf_t *sb, int32_t c);
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void MSG_WriteShort(sizebuf_t *sb, int32_t c);
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void MSG_WriteLong(sizebuf_t *sb, int32_t 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, uint32_t flags);
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void MSG_WriteAngle(sizebuf_t *sb, float f, uint32_t flags);
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void MSG_WriteAngle16(sizebuf_t *sb, float f, uint32_t flags); //johnfitz
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extern int32_t msg_readcount;
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extern bool msg_badread; // set if a read goes beyond end of message
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void MSG_BeginReading(void);
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int32_t MSG_ReadChar(void);
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int32_t MSG_ReadByte(void);
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int32_t MSG_ReadShort(void);
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int32_t 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(uint32_t flags);
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float MSG_ReadAngle(uint32_t flags);
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float MSG_ReadAngle16(uint32_t flags); //johnfitz
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//============================================================================
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void Q_memset(void *dest, int32_t fill, size_t count);
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void Q_memcpy(void *dest, const void *src, size_t count);
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int32_t 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, int32_t count);
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int32_t 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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int32_t Q_strcmp(const char *s1, const char *s2);
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int32_t Q_strncmp(const char *s1, const char *s2, int32_t count);
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int32_t 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 int32_t q_strcasecmp(const char * s1, const char * s2);
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extern int32_t 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 int32_t q_snprintf(char *str, size_t size, const char *format, ...) FUNC_PRINTF(3, 4);
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extern int32_t 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 bool com_eof;
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const char *COM_Parse(const char *data);
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extern int32_t com_argc;
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extern char **com_argv;
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extern int32_t 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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int32_t COM_CheckParm(const char *parm);
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void COM_Init(void);
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void COM_InitArgv(int32_t 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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int32_t 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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int32_t handle;
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int32_t 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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uint32_t 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 int32_t 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 int32_t file_from_pak; // global indicating that file came from a pak
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void COM_WriteFile(const char *filename, const void *data, int32_t len);
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int32_t COM_OpenFile(const char *filename, int32_t *handle, uint32_t *path_id);
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int32_t COM_FOpenFile(const char *filename, FILE **file, uint32_t *path_id);
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bool COM_FileExists(const char *filename, uint32_t *path_id);
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void COM_CloseFile(int32_t 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, int32_t bufsize,
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uint32_t *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, uint32_t *path_id);
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// allocates the buffer on the temp hunk.
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byte *COM_LoadHunkFile(const char *path, uint32_t *path_id);
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// allocates the buffer on the hunk.
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byte *COM_LoadZoneFile(const char *path, uint32_t *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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uint32_t *path_id);
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// uses cache mem for allocating the buffer.
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byte *COM_LoadMallocFile(const char *path, uint32_t *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 int32_t, 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, int32_t *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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bool 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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int32_t FS_fseek(fshandle_t *fh, long offset, int32_t 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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int32_t FS_feof(fshandle_t *fh);
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int32_t FS_ferror(fshandle_t *fh);
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int32_t FS_fclose(fshandle_t *fh);
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int32_t FS_fgetc(fshandle_t *fh);
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char *FS_fgets(char *s, int32_t size, fshandle_t *fh);
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long FS_filelength(fshandle_t *fh);
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extern bool standard_quake, rogue, hipnotic;
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/* if true, run in fitzquake mode disabling custom quakespasm hacks */
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struct cvar_s;
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#endif /* _Q_COMMON_H */
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