libretro-tyrquake/include/progs.h
Kevin Shanahan 92a7d604a0 progs: add some type checking to NEXT_EDICT/EDICT_TO_PROG macros
Make sure that the argument is actually a pointer to an edict and in
the case of NEXT_EDICT, make sure we're not casting away constness.

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
2013-03-21 19:18:53 +10:30

158 lines
4.2 KiB
C

/*
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.
*/
#ifndef PROGS_H
#define PROGS_H
#include "pr_comp.h" // defs shared with qcc
#include "progdefs.h" // generated by program cdefs
#include "common.h"
typedef union eval_s {
string_t string;
float _float;
float vector[3];
func_t function;
int _int;
int edict;
} eval_t;
#define MAX_ENT_LEAFS 16
typedef struct edict_s {
qboolean free;
link_t area; // linked to a division node or leaf
int num_leafs;
short leafnums[MAX_ENT_LEAFS];
entity_state_t baseline;
float freetime; // sv.time when the object was freed
entvars_t v; // C exported fields from progs
// other fields from progs come immediately after
} edict_t;
//============================================================================
extern dprograms_t *progs;
extern dfunction_t *pr_functions;
extern char *pr_strings;
extern int pr_strings_size;
extern dstatement_t *pr_statements;
extern globalvars_t *pr_global_struct;
extern float *pr_globals; // same as pr_global_struct
extern int pr_edict_size; // in bytes
//============================================================================
void PR_Init(void);
void PR_ExecuteProgram(func_t fnum);
void PR_LoadProgs(void);
void PR_Profile_f(void);
edict_t *ED_Alloc(void);
void ED_Free(edict_t *ed);
// returns a copy of the string allocated from the server's string heap
void ED_Print(edict_t *ed);
void ED_Write(FILE *f, edict_t *ed);
const char *ED_ParseEdict(const char *data, edict_t *ent);
void ED_WriteGlobals(FILE *f);
void ED_ParseGlobals(const char *data);
void ED_LoadFromFile(const char *data);
edict_t *EDICT_NUM(int n);
int NUM_FOR_EDICT(const edict_t *e);
#define CHECK_EDICT_PTR(e) \
do { (void)((typeof(e))NULL == (const edict_t *)NULL); } while (0)
#define NEXT_EDICT(e) ({ \
CHECK_EDICT_PTR(e); \
(typeof(e))((const byte *)e + pr_edict_size); })
#define EDICT_TO_PROG(e) ({ \
CHECK_EDICT_PTR(e); \
((byte *)e - (byte *)sv.edicts); })
#define PROG_TO_EDICT(e) ((edict_t *)((byte *)sv.edicts + e))
//============================================================================
#define G_FLOAT(o) (pr_globals[o])
#define G_INT(o) (*(int *)&pr_globals[o])
#define G_EDICT(o) ((edict_t *)((byte *)sv.edicts+ *(int *)&pr_globals[o]))
#define G_EDICTNUM(o) NUM_FOR_EDICT(G_EDICT(o))
#define G_VECTOR(o) (&pr_globals[o])
#define G_STRING(o) (PR_GetString(*(string_t *)&pr_globals[o]))
#define G_FUNCTION(o) (*(func_t *)&pr_globals[o])
#define E_FLOAT(e,o) (((float*)&e->v)[o])
#define E_INT(e,o) (*(int *)&((float*)&e->v)[o])
#define E_VECTOR(e,o) (&((float*)&e->v)[o])
#define E_STRING(e,o) (PR_GetString(*(string_t *)&((float*)&e->v)[o]))
typedef void (*builtin_t) (void);
extern builtin_t *pr_builtins;
extern int pr_numbuiltins;
extern int pr_argc;
extern qboolean pr_trace;
extern dfunction_t *pr_xfunction;
extern int pr_xstatement;
#ifdef NQ_HACK
extern unsigned short pr_crc;
#endif
#if defined(QW_HACK) && defined(SERVERONLY)
extern func_t SpectatorConnect;
extern func_t SpectatorThink;
extern func_t SpectatorDisconnect;
#endif
void PR_RunError(const char *error, ...)
__attribute__((noreturn, format(printf,1,2)));
void ED_PrintEdicts(void);
void ED_PrintNum(int ent);
eval_t *GetEdictFieldValue(edict_t *ed, const char *field);
/*
* PR Strings stuff
*/
void PR_InitStringTable(void);
const char *PR_GetString(int num);
int PR_SetString(const char *s);
/*
* Somehow, I don't think this should be exposed - but better to have it here
* than have hidden exports between .c files.
*/
void PF_changeyaw(void);
#endif /* PROGS_H */