7e4902bf6b
ef9ee89 introduced Read{Big,Little}{Short,Long,Float} functions to safely
read a value in memory. These incorrectly take char*, which causes them to
output erroneous 0xff bytes when given bytes with bit 7 set.
Change-Id: I9531172301aecfdacae405d2f782f662608ce6df
201 lines
6 KiB
C
201 lines
6 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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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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// comndef.h -- general definitions
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#if !defined BYTE_DEFINED
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typedef unsigned char byte;
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#define BYTE_DEFINED 1
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#endif
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#undef true
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#undef false
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typedef int qboolean;
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enum {false, true};
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//============================================================================
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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, void *data, int length);
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void SZ_Print (sizebuf_t *buf, 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 - (int)&(((t *)0)->m)))
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//============================================================================
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#ifndef NULL
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#define NULL ((void *)0)
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#endif
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#define Q_MAXCHAR ((char)0x7f)
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#define Q_MAXSHORT ((short)0x7fff)
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#define Q_MAXINT ((int)0x7fffffff)
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#define Q_MAXLONG ((int)0x7fffffff)
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#define Q_MAXFLOAT ((int)0x7fffffff)
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#define Q_MINCHAR ((char)0x80)
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#define Q_MINSHORT ((short)0x8000)
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#define Q_MININT ((int)0x80000000)
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#define Q_MINLONG ((int)0x80000000)
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#define Q_MINFLOAT ((int)0x7fffffff)
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//============================================================================
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extern qboolean bigendien;
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// not safe on unaligned data
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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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#define LittleShortUnaligned(x) ReadLittleShort(((unsigned char*)(&(x))))
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#define BigShortUnaligned(x) ReadBigShort(((unsigned char*)&(x)))
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#define LittleLongUnaligned(x) ReadLittleLong(((unsigned char*)&(x)))
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#define BigLongUnaligned(x) ReadBigLong(((unsigned char*)&(x)))
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#define LittleFloatUnaligned(x) ReadLittleFloat(((unsigned char*)&(x)))
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#define BigFloatUnaligned(x) ReadBigFloat(((unsigned char*)&(x))
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// for unaligned
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short ReadBigShort (unsigned char *l);
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short ReadLittleShort (unsigned char *l);
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int ReadBigLong (unsigned char *l);
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int ReadLittleLong (unsigned char *l);
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float ReadBigFloat (unsigned char *l);
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float ReadLittleFloat (unsigned char *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, char *s);
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void MSG_WriteCoord (sizebuf_t *sb, float f);
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void MSG_WriteAngle (sizebuf_t *sb, float f);
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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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char *MSG_ReadString (void);
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float MSG_ReadCoord (void);
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float MSG_ReadAngle (void);
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//============================================================================
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void Q_memset (void *dest, int fill, int count);
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void Q_memcpy (void *dest, void *src, int count);
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int Q_memcmp (void *m1, void *m2, int count);
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void Q_strcpy (char *dest, char *src);
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void Q_strncpy (char *dest, char *src, int count);
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int Q_strlen (char *str);
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char *Q_strrchr (char *s, char c);
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void Q_strcat (char *dest, char *src);
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int Q_strcmp (char *s1, char *s2);
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int Q_strncmp (char *s1, char *s2, int count);
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int Q_strcasecmp (char *s1, char *s2);
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int Q_strncasecmp (char *s1, char *s2, int n);
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int Q_atoi (char *str);
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float Q_atof (char *str);
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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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char *COM_Parse (char *data);
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extern int com_argc;
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extern char **com_argv;
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int COM_CheckParm (char *parm);
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void COM_Init (char *path);
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void COM_InitArgv (int argc, char **argv);
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char *COM_SkipPath (char *pathname);
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void COM_StripExtension (char *in, char *out);
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void COM_FileBase (char *in, char *out);
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void COM_DefaultExtension (char *path, char *extension);
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char *va(char *format, ...);
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// does a varargs printf into a temp buffer
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//============================================================================
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extern int com_filesize;
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struct cache_user_s;
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extern char com_gamedir[MAX_OSPATH];
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void COM_WriteFile (char *filename, void *data, int len);
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int COM_OpenFile (char *filename, int *hndl);
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int COM_FOpenFile (char *filename, FILE **file);
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void COM_CloseFile (int h);
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byte *COM_LoadStackFile (char *path, void *buffer, int bufsize);
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byte *COM_LoadTempFile (char *path);
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byte *COM_LoadHunkFile (char *path);
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void COM_LoadCacheFile (char *path, struct cache_user_s *cu);
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extern struct cvar_s registered;
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extern qboolean standard_quake, rogue, hipnotic;
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