mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-11 21:31:30 +00:00
1699 lines
46 KiB
C
1699 lines
46 KiB
C
/*
|
|
progs.h
|
|
|
|
Progs VM Engine interface.
|
|
|
|
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:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
$Id$
|
|
*/
|
|
|
|
#ifndef __QF_progs_h
|
|
#define __QF_progs_h
|
|
|
|
/** \defgroup progs QuakeC Virtual Machine (VM)
|
|
\image html vm-mem.svg
|
|
\image latex vm-mem.eps "VM memory map"
|
|
*/
|
|
|
|
#include "QF/pr_comp.h"
|
|
#include "QF/pr_debug.h"
|
|
|
|
struct QFile_s;
|
|
|
|
/** \ingroup progs */
|
|
//@{
|
|
typedef struct progs_s progs_t;
|
|
typedef struct pr_resource_s pr_resource_t;
|
|
typedef struct edict_s edict_t;
|
|
//@}
|
|
|
|
//============================================================================
|
|
|
|
/** \defgroup progs_misc Miscelaneous functions
|
|
\ingroup progs
|
|
*/
|
|
//@{
|
|
|
|
/** Initialize the progs engine.
|
|
*/
|
|
void PR_Init (void);
|
|
|
|
/** Initialize the Cvars for the progs engine. Call before calling PR_Init().
|
|
*/
|
|
void PR_Init_Cvars (void);
|
|
|
|
void PR_Error (progs_t *pr, const char *error, ...) __attribute__((format(printf,2,3), noreturn));
|
|
void PR_RunError (progs_t *pr, const char *error, ...) __attribute__((format(printf,2,3), noreturn));
|
|
|
|
//@}
|
|
|
|
/** \defgroup progs_execution Execution
|
|
\ingroup progs
|
|
*/
|
|
//@{
|
|
|
|
/** Ensure P_* macros point to the right place for passing parameters to progs
|
|
functions.
|
|
\param pr pointer to ::progs_t VM struct
|
|
|
|
\warning Failure to use this macro before assigning to the P_* macros can
|
|
cause corruption of the VM data due to "register" based calling. Can be
|
|
safely ignored for parameterless functions, or forwarding parameters
|
|
though a builtin.
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define PR_RESET_PARAMS(pr) \
|
|
do { \
|
|
(pr)->pr_params[0] = (pr)->pr_real_params[0]; \
|
|
(pr)->pr_params[1] = (pr)->pr_real_params[1]; \
|
|
} while (0)
|
|
|
|
/** Save the current parameters.
|
|
\param pr pointer to ::progs_t VM struct
|
|
*/
|
|
void PR_SaveParams (progs_t *pr);
|
|
|
|
/** Restore the parameters saved by PR_SaveParams().
|
|
\param pr pointer to ::progs_t VM struct
|
|
*/
|
|
void PR_RestoreParams (progs_t *pr);
|
|
|
|
/** Push an execution frame onto the VM stack. Saves current execution state.
|
|
\param pr pointer to ::progs_t VM struct
|
|
*/
|
|
void PR_PushFrame (progs_t *pr);
|
|
|
|
/** Pop an execution frame from the VM stack. Restores execution state. Also
|
|
frees any temporary strings allocated in this frame (via
|
|
PR_FreeTempStrings()).
|
|
\param pr pointer to ::progs_t VM struct
|
|
*/
|
|
void PR_PopFrame (progs_t *pr);
|
|
|
|
/** Run a progs function. If \p fnum is a builtin rather than a progs
|
|
function, PR_ExecuteProgram() will call the function and then immediately
|
|
return to the caller. Nested calls are fully supported.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param fnum number of the function to call
|
|
*/
|
|
void PR_ExecuteProgram (progs_t *pr, func_t fnum);
|
|
|
|
/** Setup to call a function. If \p fnum is a builtin rather than a progs
|
|
function, then the function is called immediately. When called from a
|
|
builtin function, and \p fnum is not a builtin, the progs function will
|
|
execute upon return of control to PR_ExecuteProgram().
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param fnum number of the function to call
|
|
\return true if \p fnum was a progs function, false if \p fnum was
|
|
a builtin
|
|
*/
|
|
int PR_CallFunction (progs_t *pr, func_t fnum);
|
|
|
|
//@}
|
|
|
|
/** \defgroup progs_load Loading
|
|
\ingroup progs
|
|
*/
|
|
//@{
|
|
|
|
/** Type of functions that are called at progs load.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\return true for success, false for failure
|
|
*/
|
|
typedef int pr_load_func_t (progs_t *pr);
|
|
|
|
/** Initialize a ::progs_t VM struct from an already open file.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param file handle of file to read progs data from
|
|
\param size bytes of \p file to read
|
|
\param edicts \e number of entities to allocate space for
|
|
\param zone minimum size of dynamic memory to allocate space for
|
|
|
|
\note \e All runtime strings (permanent or temporary) are allocated from
|
|
the VM's dynamic memory space, so be sure \p zone is of sufficient size.
|
|
So far, 1MB has proven more than sufficient for Quakeword, even when using
|
|
Ruamoko objects.
|
|
*/
|
|
void PR_LoadProgsFile (progs_t *pr, struct QFile_s *file, int size, int edicts,
|
|
int zone);
|
|
|
|
/** Convenience wrapper for PR_LoadProgsFile() and PR_RunLoadFuncs().
|
|
Searches for the specified file in the Quake filesystem.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param progsname name of the file to load as progs data
|
|
\param edicts \e number of entities to allocate space for
|
|
\param zone minimum size of dynamic memory to allocate space for
|
|
*/
|
|
void PR_LoadProgs (progs_t *pr, const char *progsname, int edicts, int zone);
|
|
|
|
/** Register a primary function to be called after the progs code has been
|
|
loaded. These functions are remembered across progs loads. They will be
|
|
called in order of registration.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param func function to call
|
|
*/
|
|
void PR_AddLoadFunc (progs_t *pr, pr_load_func_t *func);
|
|
|
|
/** Register a secondary function to be called after the progs code has been
|
|
loaded. These functions will be forgotten after each load. They will be
|
|
called in \e reverse order of being registered.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param func function to call
|
|
*/
|
|
void PR_AddLoadFinishFunc (progs_t *pr, pr_load_func_t *func);
|
|
|
|
/** Run all load functions. Any load function returning false will abort the
|
|
load operation.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\return true for success, false for failure
|
|
|
|
Calls the first set of internal load functions followed by the supplied
|
|
symbol resolution function, if any (progs_t::resolve), the second set of
|
|
internal load functions. After that, any primary load functions are called
|
|
in order of registration followed by any \c .ctor functions in the progs,
|
|
then any secondary load functions the primary load functions registered
|
|
in \e reverse order of registration.
|
|
*/
|
|
int PR_RunLoadFuncs (progs_t *pr);
|
|
|
|
/** Validate the opcodes and statement addresses in the progs. This is an
|
|
internal load function.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\return true for success, false for failure
|
|
|
|
\todo should this be elsewhere?
|
|
*/
|
|
int PR_Check_Opcodes (progs_t *pr);
|
|
|
|
void PR_BoundsCheckSize (progs_t *pr, int addr, unsigned size);
|
|
void PR_BoundsCheck (progs_t *pr, int addr, etype_t type);
|
|
|
|
//@}
|
|
|
|
/** \defgroup progs_edict Edict management
|
|
\ingroup progs
|
|
*/
|
|
//@{
|
|
|
|
struct edict_s {
|
|
qboolean free;
|
|
float freetime; ///< sv.time when the object was freed
|
|
void *edata; ///< external per-edict data
|
|
pr_type_t v[1]; ///< fields from progs
|
|
};
|
|
|
|
// pr_edict.c
|
|
void ED_ClearEdict (progs_t *pr, edict_t *e, int val);
|
|
edict_t *ED_Alloc (progs_t *pr);
|
|
void ED_Free (progs_t *pr, edict_t *ed);
|
|
edict_t *ED_EdictNum(progs_t *pr, pr_int_t n);
|
|
pr_int_t ED_NumForEdict(progs_t *pr, edict_t *e);
|
|
void ED_Count (progs_t *pr);
|
|
qboolean PR_EdictValid (progs_t *pr, pr_int_t e);
|
|
|
|
// pr_debug.c
|
|
void ED_Print (progs_t *pr, edict_t *ed);
|
|
void ED_PrintEdicts (progs_t *pr, const char *fieldval);
|
|
void ED_PrintNum (progs_t *pr, pr_int_t ent);
|
|
|
|
// pr_parse.c
|
|
struct script_s;
|
|
struct plitem_s;
|
|
qboolean ED_ParseEpair (progs_t *pr, pr_type_t *base, ddef_t *key,
|
|
const char *s);
|
|
struct plitem_s *ED_EntityDict (progs_t *pr, edict_t *ed);
|
|
struct plitem_s *ED_GlobalsDict (progs_t *pr);
|
|
void ED_InitGlobals (progs_t *pr, struct plitem_s *globals);
|
|
void ED_InitEntity (progs_t *pr, struct plitem_s *entity, edict_t *ent);
|
|
struct plitem_s *ED_ConvertToPlist (progs_t *pr, struct script_s *script);
|
|
struct plitem_s *ED_Parse (progs_t *pr, const char *data);
|
|
void ED_LoadFromFile (progs_t *pr, const char *data);
|
|
void ED_EntityParseFunction (progs_t *pr);
|
|
|
|
#define PR_edicts(p) ((byte *) *(p)->edicts)
|
|
|
|
#define NEXT_EDICT(p,e) ((edict_t *) ((byte *) e + (p)->pr_edict_size))
|
|
#define EDICT_TO_PROG(p,e) ((pr_int_t)(intptr_t)((byte *)(e) - PR_edicts (p)))
|
|
#define PROG_TO_EDICT(p,e) ((edict_t *) (PR_edicts (p) + (e)))
|
|
#define NUM_FOR_BAD_EDICT(p,e) (EDICT_TO_PROG (p, e) / (p)->pr_edict_size)
|
|
#ifndef PR_PARANOID_PROGS
|
|
# define EDICT_NUM(p,n) (PROG_TO_EDICT (p, (n) * (p)->pr_edict_size))
|
|
# define NUM_FOR_EDICT(p,e) NUM_FOR_BAD_EDICT (p, e)
|
|
#else
|
|
# define EDICT_NUM(p,n) ED_EdictNum (p, n)
|
|
# define NUM_FOR_EDICT(p,e) ED_NumForEdict (p, e)
|
|
#endif
|
|
|
|
//@}
|
|
|
|
/** \defgroup pr_symbols Symbol Management
|
|
\ingroup progs
|
|
Lookup functions for symbol name resolution.
|
|
*/
|
|
//@{
|
|
|
|
ddef_t *PR_FieldAtOfs (progs_t *pr, pr_int_t ofs);
|
|
ddef_t *PR_GlobalAtOfs (progs_t *pr, pr_int_t ofs);
|
|
|
|
ddef_t *PR_FindField (progs_t *pr, const char *name);
|
|
ddef_t *PR_FindGlobal (progs_t *pr, const char *name);
|
|
dfunction_t *PR_FindFunction (progs_t *pr, const char *name);
|
|
|
|
int PR_ResolveGlobals (progs_t *pr);
|
|
|
|
int PR_AccessField (progs_t *pr, const char *name, etype_t type,
|
|
const char *file, int line);
|
|
|
|
void PR_Undefined (progs_t *pr, const char *type, const char *name) __attribute__((noreturn));
|
|
//@}
|
|
|
|
//============================================================================
|
|
|
|
/** \defgroup progs_data_access Data Access
|
|
\ingroup progs
|
|
Macros for accessing data in the VM address space
|
|
*/
|
|
|
|
/** \defgroup prda_globals Globals
|
|
\ingroup progs_data_access
|
|
Typed global access macros. No checking is done against the QC type, but
|
|
the appropriate C type will be used.
|
|
*/
|
|
//@{
|
|
|
|
/** \internal
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\param t typename prefix (see pr_type_u)
|
|
\return lvalue of the appropriate type
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_var(p,o,t) ((p)->pr_globals[o].t##_var)
|
|
|
|
/** Access a float global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c float
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return float lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_FLOAT(p,o) G_var (p, o, float)
|
|
|
|
/** Access an integer global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c integer
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return int lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_INT(p,o) G_var (p, o, integer)
|
|
|
|
/** Access an unsigned integer global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c uinteger
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return unsigned int lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_UINT(p,o) G_var (p, o, uinteger)
|
|
|
|
/** Access a vector global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c vector
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return vec3_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_VECTOR(p,o) G_var (p, o, vector)
|
|
|
|
/** Access a quaternion global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c quaternion
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return quat_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_QUAT(p,o) G_var (p, o, quat)
|
|
|
|
/** Access a string index global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return string_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_STRING(p,o) G_var (p, o, string)
|
|
|
|
/** Access a function global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c void()
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return func_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_FUNCTION(p,o) G_var (p, o, func)
|
|
|
|
/** Access a pointer global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return pointer_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_POINTER(p,o) G_var (p, o, pointer)
|
|
|
|
|
|
/** Access an entity global.
|
|
|
|
\par QC type:
|
|
\c entity
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return C pointer to the entity
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_EDICT(p,o) ((edict_t *)(PR_edicts (p) + G_INT (p, o)))
|
|
|
|
/** Access an entity global.
|
|
|
|
\par QC type:
|
|
\c entity
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return the entity number
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_EDICTNUM(p,o) NUM_FOR_EDICT(p, G_EDICT (p, o))
|
|
|
|
/** Access a string global, converting it to a C string. Kills the program
|
|
if the string is invalid.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return const char * to the string
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_GSTRING(p,o) PR_GetString (p, G_STRING (p, o))
|
|
|
|
/** Access a dstring global. Kills the program if the dstring is invalid.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return dstring_t * to the dstring
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_DSTRING(p,o) PR_GetMutableString (p, G_STRING (p, o))
|
|
|
|
/** Access a pointer parameter.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return C pointer represented by the parameter. 0 offset -> NULL
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_GPOINTER(p,o) PR_GetPointer (p, o)
|
|
|
|
/** Access a structure global. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\param t C type of the structure
|
|
\param o offset into global data space
|
|
\return structure lvalue. use & to make a pointer of the
|
|
appropriate type.
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define G_STRUCT(p,t,o) (*(t *)G_GPOINTER (p, o))
|
|
//@}
|
|
|
|
/** \defgroup prda_parameters Parameters
|
|
\ingroup progs_data_access
|
|
Typed parameter access macros. No checking is done against the QC type, but
|
|
the appropriate C type will be used.
|
|
*/
|
|
//@{
|
|
|
|
/** \internal
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\param t typename prefix (see pr_type_u)
|
|
\return lvalue of the appropriate type
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_var(p,n,t) ((p)->pr_params[n]->t##_var)
|
|
|
|
/** Access a float parameter. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c float
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return float lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_FLOAT(p,n) P_var (p, n, float)
|
|
|
|
/** Access an integer parameter. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c integer
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return int lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_INT(p,n) P_var (p, n, integer)
|
|
|
|
/** Access an unsigned integer parameter. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c uinteger
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return unsigned int lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_UINT(p,n) P_var (p, n, uinteger)
|
|
|
|
/** Access a vector parameter. Can be used any way a vec3_t variable can.
|
|
|
|
\par QC type:
|
|
\c vector
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return vec3_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_VECTOR(p,n) P_var (p, n, vector)
|
|
|
|
/** Access a quaterion parameter. Can be used any way a quat_t variable can.
|
|
|
|
\par QC type:
|
|
\c quaterion
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return quat_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_QUAT(p,n) P_var (p, n, quat)
|
|
|
|
/** Access a string index parameter. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return string_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_STRING(p,n) P_var (p, n, string)
|
|
|
|
/** Access a function parameter. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c void()
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return func_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_FUNCTION(p,n) P_var (p, n, func)
|
|
|
|
/** Access a pointer parameter. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return pointer_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_POINTER(p,n) P_var (p, n, pointer)
|
|
|
|
|
|
/** Access an entity parameter.
|
|
|
|
\par QC type:
|
|
\c entity
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return C pointer to the entity
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_EDICT(p,n) ((edict_t *)(PR_edicts (p) + P_INT (p, n)))
|
|
|
|
/** Access an entity parameter.
|
|
|
|
\par QC type:
|
|
\c entity
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return the entity number
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_EDICTNUM(p,n) NUM_FOR_EDICT (p, P_EDICT (p, n))
|
|
|
|
/** Access a string parameter, converting it to a C string. Kills the program
|
|
if the string is invalid.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return const char * to the string
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_GSTRING(p,n) PR_GetString (p, P_STRING (p, n))
|
|
|
|
/** Access a dstring parameter. Kills the program if the dstring is invalid.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return dstring_t * to the dstring
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_DSTRING(p,n) PR_GetMutableString (p, P_STRING (p, n))
|
|
|
|
/** Access a pointer parameter.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\param n parameter number (0-7)
|
|
\return C pointer represented by the parameter. 0 offset -> NULL
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_GPOINTER(p,n) PR_GetPointer (p, P_POINTER (p, n))
|
|
|
|
/** Access a structure pointer parameter.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\param t C type of the structure
|
|
\param n parameter number (0-7)
|
|
\return structure lvalue. use & to make a pointer of the
|
|
appropriate type.
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define P_STRUCT(p,t,n) (*(t *)P_GPOINTER (p, n))
|
|
//@}
|
|
|
|
/** \defgroup prda_return Return Values
|
|
\ingroup progs_data_access
|
|
These macros are used to access the value returned by an interpreted VM
|
|
function, and to return values from engine functions into progs space
|
|
(that is, builtins).
|
|
\warning No checking is performed against progs types; for example, if you
|
|
ask for an \c int from a function that returned a \c float, you're asking
|
|
for trouble.
|
|
*/
|
|
//@{
|
|
|
|
/** \internal
|
|
\param p pointer to ::progs_t VM struct
|
|
\param t typename prefix (see pr_type_u)
|
|
\return lvalue of the appropriate type
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_var(p,t) ((p)->pr_return->t##_var)
|
|
|
|
/** Access the VM function return value as a \c float
|
|
|
|
\par QC type:
|
|
\c float
|
|
\param p pointer to ::progs_t VM struct
|
|
\return float lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_FLOAT(p) R_var (p, float)
|
|
|
|
/** Access the VM function return value as a \c ::pr_int_t (AKA int32_t)
|
|
|
|
\par QC type:
|
|
\c integer
|
|
\param p pointer to ::progs_t VM struct
|
|
\return ::pr_int_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_INT(p) R_var (p, integer)
|
|
|
|
/** Access the VM function return value as a \c ::pr_uint_t (AKA uint32_t)
|
|
|
|
\par QC type:
|
|
\c uinteger
|
|
\param p pointer to ::progs_t VM struct
|
|
\return ::pr_int_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_UINT(p) R_var (p, uinteger)
|
|
|
|
/** Access the VM function return value as a \c ::vec3_t vector.
|
|
|
|
\par QC type:
|
|
\c vector
|
|
\param p pointer to ::progs_t VM struct
|
|
\return ::vec3_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_VECTOR(p) R_var (p, vector)
|
|
|
|
/** Access the VM function return value as a \c ::quat_t quaternion.
|
|
|
|
\par QC type:
|
|
\c quaternion
|
|
\param p pointer to ::progs_t VM struct
|
|
\return ::quat_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_QUAT(p) R_var (p, quat)
|
|
|
|
/** Access the VM function return value as a ::string_t (a VM string reference).
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\return ::string_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_STRING(p) R_var (p, string)
|
|
|
|
/** Access the VM function return value as a ::func_t (a VM function reference)
|
|
|
|
\par QC type:
|
|
\c void()
|
|
\param p pointer to ::progs_t VM struct
|
|
\return ::func_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_FUNCTION(p) R_var (p, func)
|
|
|
|
/** Access the VM function return value as a ::pointer_t (a VM "pointer")
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\return ::pointer_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define R_POINTER(p) R_var (p, pointer)
|
|
|
|
|
|
/** Set the return value to the given C string. The returned string will
|
|
eventually be garbage collected (see PR_SetReturnString()).
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param s C string to be returned
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define RETURN_STRING(p,s) (R_STRING (p) = PR_SetReturnString((p), s))
|
|
|
|
/** Set the return value to the given C entity pointer. The pointer is
|
|
converted into a progs entity address.
|
|
|
|
\par QC type:
|
|
\c entity
|
|
\param p pointer to ::progs_t VM struct
|
|
\param e C entity pointer to be returned
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define RETURN_EDICT(p,e) (R_STRING (p) = EDICT_TO_PROG(p, e))
|
|
|
|
/** Set the return value to the given C pointer. NULL is converted to 0.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param p pointer to ::progs_t VM struct
|
|
\param ptr C entity pointer to be returned
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define RETURN_POINTER(p,ptr) (R_POINTER (p) = PR_SetPointer (p, ptr))
|
|
|
|
/** Set the return value to the given vector.
|
|
|
|
\par QC type:
|
|
\c vector
|
|
\param p pointer to ::progs_t VM struct
|
|
\param v vector to be returned
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define RETURN_VECTOR(p,v) VectorCopy (v, R_VECTOR (p))
|
|
|
|
/** Set the return value to the given quaterion.
|
|
|
|
\par QC type:
|
|
\c vector
|
|
\param p pointer to ::progs_t VM struct
|
|
\param q quaternion to be returned
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define RETURN_QUAT(p,q) VectorCopy (q, R_QUAT (p))
|
|
//@}
|
|
|
|
/** \defgroup prda_entity_fields Entity Fields
|
|
\ingroup progs_data_access
|
|
Typed entity field access macros. No checking is done against the QC type,
|
|
but the appropriate C type will be used.
|
|
*/
|
|
//@{
|
|
|
|
/** \internal
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\param t typename prefix (see pr_type_u)
|
|
\return lvalue of the appropriate type
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_var(e,o,t) ((e)->v[o].t##_var)
|
|
|
|
|
|
/** Access a float entity field. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c float
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return float lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_FLOAT(e,o) E_var (e, o, float)
|
|
|
|
/** Access an integer entity field. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c integer
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return int lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_INT(e,o) E_var (e, o, integer)
|
|
|
|
/** Access an unsigned integer entity field. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c uinteger
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return unsigned int lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_UINT(e,o) E_var (e, o, uinteger)
|
|
|
|
/** Access a vector entity field. Can be used any way a vec3_t variable can.
|
|
|
|
\par QC type:
|
|
\c vector
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return vec3_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_VECTOR(e,o) E_var (e, o, vector)
|
|
|
|
/** Access a quaternion entity field. Can be used any way a quat_t variable
|
|
can.
|
|
|
|
\par QC type:
|
|
\c quaterion
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return quat_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_QUAT(e,o) E_var (e, o, quat)
|
|
|
|
/** Access a string index entity field. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return string_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_STRING(e,o) E_var (e, o, string)
|
|
|
|
/** Access a function entity field. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c void()
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return func_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_FUNCTION(e,o) E_var (e, o, func)
|
|
|
|
/** Access a pointer entity field. Can be assigned to.
|
|
|
|
\par QC type:
|
|
\c void *
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return pointer_t lvalue
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_POINTER(e,o) E_var (e, o, pointer)
|
|
|
|
|
|
/** Access a string entity field, converting it to a C string. Kills the
|
|
program if the string is invalid.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return const char * to the string
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_GSTRING(p,e,o) (PR_GetString (p, E_STRING (e, o)))
|
|
|
|
/** Access a dstring entity field. Kills the program if the dstring is invalid.
|
|
|
|
\par QC type:
|
|
\c string
|
|
\param p pointer to ::progs_t VM struct
|
|
\param e pointer to the entity
|
|
\param o field offset into entity data space
|
|
\return dstring_t * to the dstring
|
|
|
|
\hideinitializer
|
|
*/
|
|
#define E_DSTRING(p,e,o) (PR_GetMutableString (p, E_STRING (e, o)))
|
|
//@}
|
|
|
|
/** \defgroup pr_builtins VM Builtin functions
|
|
\ingroup progs
|
|
Builtin management functions.
|
|
|
|
Builtins are arranged into groups of 65536 to allow for diffent expantion
|
|
sets. eg, stock id is 0x0000xxxx, quakeforge is 0x000fxxxx. predefined
|
|
groups go up to 0x0fffxxxx allowing 4096 different groups. Builtins
|
|
0x10000000 to 0x7fffffff are reserved for auto-allocation. The range
|
|
0x8000000 to 0xffffffff is unavailable due to the builtin number being
|
|
a negative statement address.
|
|
*/
|
|
//@{
|
|
|
|
#define PR_RANGE_SHIFT 16
|
|
#define PR_RANGE_MASK 0xffff0000
|
|
|
|
#define PR_RANGE_QF 0x000f
|
|
|
|
#define PR_RANGE_AUTO 0x1000
|
|
#define PR_RANGE_MAX 0x7fff
|
|
#define PR_RANGE_NONE 0xffff
|
|
#define PR_AUTOBUILTIN (PR_RANGE_AUTO << PR_RANGE_SHIFT)
|
|
|
|
typedef void (*builtin_proc) (progs_t *pr);
|
|
|
|
/** Create a static array of these and pass the array to PR_RegisterBuiltins()
|
|
to register the module's QC builtin functions.
|
|
*/
|
|
typedef struct {
|
|
/// QC name of the builtin. Must be an exact match for automatically
|
|
/// resolved builtins (func = \#0 in QC). NULL indicates end of array for
|
|
/// PR_RegisterBuiltins()
|
|
const char *name;
|
|
/// Pointer to the C implementation of the builtin function.
|
|
builtin_proc proc;
|
|
/// The number of the builtin for \#N in QC. -1 for automatic allocation.
|
|
/// 0 or >= ::PR_AUTOBUILTIN is invalid.
|
|
pr_int_t binum;
|
|
} builtin_t;
|
|
|
|
/** Duplicate the dfunction_t descriptor with the addition of a pointer to the
|
|
builtin function. Avoids a level of indirection when calling a builtin
|
|
function.
|
|
*/
|
|
typedef struct {
|
|
pr_int_t first_statement;
|
|
pr_int_t parm_start;
|
|
pr_int_t locals;
|
|
pr_int_t profile;
|
|
pr_int_t numparms;
|
|
uint8_t parm_size[MAX_PARMS];
|
|
dfunction_t *descriptor;
|
|
builtin_proc func;
|
|
} bfunction_t;
|
|
|
|
/** Register a set of builtin functions with the VM. Different VMs within the
|
|
same program can have different builtin sets. May be called multiple times
|
|
for the same VM, but redefining a builtin is an error.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param builtins array of builtin_t builtins
|
|
*/
|
|
void PR_RegisterBuiltins (progs_t *pr, builtin_t *builtins);
|
|
|
|
/** Lookup a builtin function referred by name.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param name name of the builtin function to lookup
|
|
\return pointer to the builtin function entry, or NULL if not found
|
|
*/
|
|
builtin_t *PR_FindBuiltin (progs_t *pr, const char *name);
|
|
|
|
/** Lookup a builtin function by builtin number.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param num number of the builtin function to lookup
|
|
\return pointer to the builtin function entry, or NULL if not found
|
|
*/
|
|
builtin_t *PR_FindBuiltinNum (progs_t *pr, pr_int_t num);
|
|
|
|
/** Fixup all automatically resolved builtin functions (func = #0 in QC).
|
|
Performs any necessary builtin function number mapping. Also builds the
|
|
bfunction_t table. Called automatically during progs load.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\return true for success, false for failure
|
|
*/
|
|
int PR_RelocateBuiltins (progs_t *pr);
|
|
|
|
//@}
|
|
|
|
/** \defgroup pr_strings String Management
|
|
\ingroup progs
|
|
Strings management functions.
|
|
|
|
All strings accessable by the VM are stored within the VM address space.
|
|
These functions provide facilities to set permanent, dynamic and
|
|
temporary strings, as well as mutable strings using dstrings.
|
|
|
|
Permanent strings are either supplied by the progs (+ve string index) or
|
|
set by the main program using PR_SetString(). Permanent strings can never
|
|
be altered and will exist until the next progs load.
|
|
|
|
Dynamic strings can be freed at any time, but not altered.
|
|
|
|
Temporary strings are always set by the main program using
|
|
PR_SetTempString() or PR_CatStrings(). They will be freed when the
|
|
current progs stack frame is cleared. Use PR_PushFrame() and PR_PopFrame()
|
|
around the calls to PR_SetTempString() and PR_ExecuteProgram() when using
|
|
strings as parameters to a progs function.
|
|
|
|
Mutable strings are dstrings (dstring_t) mapped into the VM address space.
|
|
They can be created, altered, and destroyed at any time by the main
|
|
program (or the progs code via an appropriate builtin function).
|
|
*/
|
|
//@{
|
|
|
|
/** Initialize the string tables using the strings supplied by the progs.
|
|
Called automatically during progs load.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\return true for success, false for failure
|
|
*/
|
|
int PR_LoadStrings (progs_t *pr);
|
|
|
|
/** Check the validity of a string index.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param num string index to be validated
|
|
\return true if the index is valid, false otherwise
|
|
*/
|
|
qboolean PR_StringValid (progs_t *pr, string_t num);
|
|
|
|
/** Convert a string index to a C string.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param num string index to be converted
|
|
\return C pointer to the string.
|
|
*/
|
|
const char *PR_GetString(progs_t *pr, string_t num);
|
|
|
|
/** Retrieve the dstring_t associated with a mutable string.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param num string index of the mutable string
|
|
\return the dstring implementing the mutable string
|
|
*/
|
|
struct dstring_s *PR_GetMutableString(progs_t *pr, string_t num);
|
|
|
|
/** Make a permanent progs string from the given C string. Will not create a
|
|
duplicate permanent string (temporary and mutable strings are not checked).
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param s C string to be made into a permanent progs string
|
|
\return string index of the progs string
|
|
*/
|
|
string_t PR_SetString(progs_t *pr, const char *s);
|
|
|
|
/** Make a temporary progs string that will survive across function returns.
|
|
Will not duplicate a permanent string. If a new progs string is created,
|
|
it will be freed after ::PR_RS_SLOTS calls to this function. ie, up to
|
|
::PR_RS_SLOTS return strings can exist at a time.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param s C string to be returned to the progs code
|
|
\return string index of the progs string
|
|
*/
|
|
string_t PR_SetReturnString(progs_t *pr, const char *s);
|
|
|
|
/** Make a temporary progs string that will be freed when the current progs
|
|
stack frame is exited. Will not duplicate a permantent string.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param s C string
|
|
\return string index of the progs string
|
|
*/
|
|
string_t PR_SetTempString(progs_t *pr, const char *s);
|
|
|
|
/** Make a temporary progs string that is the concatenation of two C strings.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param a C string
|
|
\param b C string
|
|
\return string index of the progs string that represents the
|
|
concatenation of strings a and b
|
|
*/
|
|
string_t PR_CatStrings (progs_t *pr, const char *a, const char *b);
|
|
|
|
/** Convert a mutable string to a temporary string.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param str string index of the mutable string to be converted
|
|
*/
|
|
void PR_MakeTempString(progs_t *pr, string_t str);
|
|
|
|
/** Create a new mutable string.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\return string index of the newly created mutable string
|
|
*/
|
|
string_t PR_NewMutableString (progs_t *pr);
|
|
|
|
/** Make a dynamic progs string from the given C string. Will not create a
|
|
duplicate permanent string (temporary, dynamic and mutable strings are
|
|
not checked).
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param s C string to be made into a permanent progs string
|
|
\return string index of the progs string
|
|
*/
|
|
string_t PR_SetDynamicString (progs_t *pr, const char *s);
|
|
|
|
/** Clear all of the return string slots. Called at progs load.
|
|
\param pr pointer to ::progs_t VM struct
|
|
*/
|
|
void PR_ClearReturnStrings (progs_t *pr);
|
|
|
|
/** Destroy a mutable, dynamic or temporary string.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param str string index of the string to be destroyed
|
|
*/
|
|
void PR_FreeString (progs_t *pr, string_t str);
|
|
|
|
/** Free all the temporary strings allocated in the current stack frame.
|
|
\param pr pointer to ::progs_t VM struct
|
|
*/
|
|
void PR_FreeTempStrings (progs_t *pr);
|
|
|
|
/** Formatted printing similar to C's vsprintf, but using QC types.
|
|
The format string is a string of characters (other than \c \%) to be
|
|
printed that includes optional format specifiers, one for each arg to be
|
|
printed.
|
|
A format specifier can be one of two forms:
|
|
<ul>
|
|
<li>\c "%%" print a single \c '\%'
|
|
<li><tt>%[flags][field width][precision](conversion specifier)</tt> print a
|
|
single arg of the type specified by the conversion specifier using
|
|
the given format.
|
|
</ul>
|
|
|
|
<ul>
|
|
<li>flags (optional)
|
|
<ul>
|
|
<li>\c '#' print the value using an alternat form
|
|
<li>\c '0' the value should be zero padded
|
|
<li>\c '-' the value is to be left adjusted on the field bondary.
|
|
<li><tt>' '</tt> A blank should be left before a positve number (or
|
|
empty string) produced by a signed conversion.
|
|
<li>\c '+' A sign (+ or -) will always be placed before a number
|
|
produced by a signed conversion.
|
|
</ul>
|
|
<li>field width (optional)
|
|
<ul>
|
|
<li>a string of decimal digits with nonzero first digit.
|
|
</ul>
|
|
<li>precision (optional)
|
|
<ul>
|
|
<li>a string consisting of <tt>'.'</tt> followed by 0 or more decimal
|
|
digits.
|
|
</ul>
|
|
<li>conversion specifier (mandatory)
|
|
<ul>
|
|
<li>\c '@' \c id Not yet implemented. Silently ignored.
|
|
<li>\c 'e' \c entity Prints the edict number of the given entity ("%i")
|
|
<li>\c 'i' \c integer Print a integer value. ("%i")
|
|
<li>\c 'f' \c float Print a float value. ("%f")
|
|
<li>\c 'g' \c float Print a float value. ("%f")
|
|
<li>\c 'p' \c void * Print a pointer value. ("%#x")
|
|
<li>\c 's' \c string Print a string value. ("%s")
|
|
<li>\c 'v' \c vector Print a vector value. ("'%g %g %g'")
|
|
<li>\c 'q' \c quaternion Print a quaternion value. ("'%g %g %g %g'")
|
|
<li>\c 'x' \c uinteger Print an unsigned integer value. ("%x")
|
|
</ul>
|
|
</ul>
|
|
|
|
For details, refer to the C documentation for printf.
|
|
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param result dstring to which printing is done
|
|
\param name name to be reported in case of errors
|
|
\param format the format string
|
|
\param count number of args
|
|
\param args array of pointers to the values to be printed
|
|
*/
|
|
void PR_Sprintf (progs_t *pr, struct dstring_s *result, const char *name,
|
|
const char *format, int count, pr_type_t **args);
|
|
|
|
//@}
|
|
|
|
/** \defgroup pr_resources Resource Management
|
|
\ingroup progs
|
|
Builtin module private data management.
|
|
*/
|
|
//@{
|
|
|
|
/** Initialize the resource management fields.
|
|
|
|
\param pr The VM of which the resource fields will be initialized.
|
|
*/
|
|
void PR_Resources_Init (progs_t *pr);
|
|
|
|
/** Clear all resources before loading a new progs.
|
|
|
|
Calls the clear() callback of all registered resources.
|
|
|
|
\param pr The VM of which the resources will be cleared.
|
|
*/
|
|
void PR_Resources_Clear (progs_t *pr);
|
|
|
|
/** Register a resource with a VM.
|
|
|
|
\param pr The VM to which the resource will be associated.
|
|
\param name The name of the resource. Used for retrieving the
|
|
resource.
|
|
\param data The resource data.
|
|
callback.
|
|
\param clear Callback for performing any necessary cleanup. Called
|
|
by PR_Resources_Clear(). The parameters are the current
|
|
VM (\p pr) and \p data.
|
|
\note The name should be unique to the VM, but no checking is
|
|
done. If the name is not unique, the previous registered
|
|
resource will break. The name of the sub-system
|
|
registering the resource is a suitable name, and will
|
|
probably be unique.
|
|
*/
|
|
void PR_Resources_Register (progs_t *pr, const char *name, void *data,
|
|
void (*clear)(progs_t *, void *));
|
|
|
|
/** Retrieve a resource registered with the VM.
|
|
|
|
\param pr The VM from which the resource will be retrieved.
|
|
\param name The name of the resource.
|
|
\return The resource, or NULL if \p name does not match any
|
|
resource registered with the VM.
|
|
*/
|
|
void *PR_Resources_Find (progs_t *pr, const char *name);
|
|
|
|
/** \name Resource Map support
|
|
|
|
These macros can be used to create functions for mapping C resources
|
|
to QuakeC integer handles.
|
|
|
|
Valid handles are always negative.
|
|
|
|
\note \p map is the resource map itself, not a pointer to the
|
|
resource map.
|
|
*/
|
|
//@{
|
|
|
|
/** Type delcaration for the resource map.
|
|
|
|
\param type The type of the resource. The size must be at least
|
|
as large as \c sizeof(type *).
|
|
*/
|
|
#define PR_RESMAP(type) struct { type *_free; type **_map; unsigned _size; }
|
|
|
|
/** Allocate a new resource from the resource map.
|
|
|
|
\param type The type of the resource. Must match the \c type parameter
|
|
used for PR_RESMAP.
|
|
\param map The resource map.
|
|
\return A pointer to the new resource, or null if no more could
|
|
be allocated.
|
|
*/
|
|
#define PR_RESNEW(type,map) \
|
|
type *t; \
|
|
\
|
|
if (!map._free) { \
|
|
int i, size; \
|
|
map._size++; \
|
|
size = map._size * sizeof (type *); \
|
|
map._map = realloc (map._map, size); \
|
|
if (!map._map) \
|
|
return 0; \
|
|
map._free = calloc (1024, sizeof (type)); \
|
|
if (!map._free) \
|
|
return 0; \
|
|
map._map[map._size - 1] = map._free; \
|
|
for (i = 0; i < 1023; i++) \
|
|
*(type **) &map._free[i] = &map._free[i + 1]; \
|
|
*(type **) &map._free[i] = 0; \
|
|
} \
|
|
t = map._free; \
|
|
map._free = *(type **) t; \
|
|
memset (t, 0, sizeof (type)); \
|
|
return t
|
|
|
|
/** Free a resource returning it to the resource map.
|
|
|
|
\param type The type of the resource. Must match the \c type parameter
|
|
used for PR_RESMAP.
|
|
\param map The resource map.
|
|
\param t Pointer to the resource to be freed.
|
|
*/
|
|
#define PR_RESFREE(type,map,t) \
|
|
memset (t, 0, sizeof (type)); \
|
|
*(type **) t = map._free; \
|
|
map._free = t
|
|
|
|
/** Free all resources in the resource map.
|
|
|
|
Any memory allocated to the resource must be freed before freeing the
|
|
resource.
|
|
|
|
\param type The type of the resource. Must match the \c type parameter
|
|
used for PR_RESMAP.
|
|
\param map The resource map.
|
|
*/
|
|
#define PR_RESRESET(type,map) \
|
|
unsigned i, j; \
|
|
if (!map._size) \
|
|
return; \
|
|
for (i = 0; i < map._size; i++) { \
|
|
map._free = map._map[i]; \
|
|
for (j = 0; j < 1023; j++) \
|
|
*(type **) &map._free[j] = &map._free[j + 1]; \
|
|
if (i < map._size - 1) \
|
|
*(type **) &map._free[j] = &map._map[i + 1][0]; \
|
|
} \
|
|
map._free = map._map[0];
|
|
|
|
/** Retrieve a resource from the resource map using a handle.
|
|
|
|
\param map The resource map.
|
|
\param col The handle.
|
|
\return A pointer to the resource, or NULL if the handle is
|
|
invalid.
|
|
*/
|
|
#define PR_RESGET(map,col) \
|
|
unsigned row = ~col / 1024; \
|
|
col = ~col % 1024; \
|
|
if (row >= map._size) \
|
|
return 0; \
|
|
return &map._map[row][col]
|
|
|
|
/** Convert a resource pointer to a handle.
|
|
|
|
\param map The resource map.
|
|
\param ptr The resource pointer.
|
|
\return The handle or 0 if the pointer is invalid.
|
|
*/
|
|
#define PR_RESINDEX(map,ptr) \
|
|
unsigned i; \
|
|
for (i = 0; i < map._size; i++) { \
|
|
long d = ptr - map._map[i]; \
|
|
if (d >= 0 && d < 1024) \
|
|
return ~(i * 1024 + d); \
|
|
} \
|
|
return 0
|
|
//@}
|
|
|
|
//@}
|
|
|
|
/** \defgroup pr_zone VM memory management.
|
|
\ingroup progs
|
|
|
|
Used to allocate and free memory in the VM address space.
|
|
*/
|
|
//@{
|
|
|
|
void PR_Zone_Init (progs_t *pr);
|
|
void PR_Zone_Free (progs_t *pr, void *ptr);
|
|
void *PR_Zone_Malloc (progs_t *pr, pr_int_t size);
|
|
void *PR_Zone_Realloc (progs_t *pr, void *ptr, pr_int_t size);
|
|
|
|
//@}
|
|
|
|
/** \defgroup debug VM Debugging
|
|
\ingroup progs
|
|
Progs debugging support.
|
|
*/
|
|
//@{
|
|
|
|
void PR_Debug_Init (void);
|
|
void PR_Debug_Init_Cvars (void);
|
|
int PR_LoadDebug (progs_t *pr);
|
|
void PR_Debug_Watch (progs_t *pr, const char *expr);
|
|
void PR_Debug_Print (progs_t *pr, const char *expr);
|
|
pr_auxfunction_t *PR_Get_Lineno_Func (progs_t *pr, pr_lineno_t *lineno);
|
|
pr_uint_t PR_Get_Lineno_Addr (progs_t *pr, pr_lineno_t *lineno);
|
|
pr_uint_t PR_Get_Lineno_Line (progs_t *pr, pr_lineno_t *lineno);
|
|
pr_lineno_t *PR_Find_Lineno (progs_t *pr, pr_uint_t addr);
|
|
const char *PR_Get_Source_File (progs_t *pr, pr_lineno_t *lineno);
|
|
const char *PR_Get_Source_Line (progs_t *pr, pr_uint_t addr);
|
|
ddef_t *PR_Get_Param_Def (progs_t *pr, dfunction_t *func, unsigned parm);
|
|
ddef_t *PR_Get_Local_Def (progs_t *pr, pr_int_t offs);
|
|
void PR_PrintStatement (progs_t *pr, dstatement_t *s, int contents);
|
|
void PR_DumpState (progs_t *pr);
|
|
void PR_StackTrace (progs_t *pr);
|
|
void PR_Profile (progs_t *pr);
|
|
|
|
extern struct cvar_s *pr_debug;
|
|
extern struct cvar_s *pr_deadbeef_ents;
|
|
extern struct cvar_s *pr_deadbeef_locals;
|
|
extern struct cvar_s *pr_boundscheck;
|
|
extern struct cvar_s *pr_faultchecks;
|
|
|
|
//@}
|
|
|
|
/** \defgroup pr_cmds Quake and Quakeworld common builtins
|
|
\ingroup progs
|
|
\todo This really doesn't belong in progs.
|
|
*/
|
|
//@{
|
|
|
|
char *PF_VarString (progs_t *pr, int first);
|
|
void PR_Cmds_Init (progs_t *pr);
|
|
|
|
extern const char *pr_gametype;
|
|
|
|
//@}
|
|
|
|
//============================================================================
|
|
|
|
#define MAX_STACK_DEPTH 64
|
|
#define LOCALSTACK_SIZE 4096
|
|
#define PR_RS_SLOTS 16
|
|
|
|
typedef struct strref_s strref_t;
|
|
|
|
typedef struct {
|
|
pr_int_t s; ///< Return statement.
|
|
bfunction_t *f; ///< Calling function.
|
|
strref_t *tstr; ///< Linked list of temporary strings.
|
|
} prstack_t;
|
|
|
|
struct obj_list_s;
|
|
|
|
struct progs_s {
|
|
edict_t **edicts;
|
|
int *num_edicts;
|
|
int *reserved_edicts; ///< alloc will start at reserved_edicts+1
|
|
void (*unlink) (edict_t *ent);
|
|
void (*flush) (void);
|
|
int (*parse_field) (progs_t *pr, const char *key, const char *value);
|
|
int (*prune_edict) (progs_t *pr, edict_t *ent);
|
|
void (*free_edict) (progs_t *pr, edict_t *ent);
|
|
|
|
int null_bad;
|
|
int no_exec_limit;
|
|
|
|
void (*file_error) (progs_t *pr, const char *path);
|
|
void *(*load_file) (progs_t *pr, const char *path);
|
|
void *(*allocate_progs_mem) (progs_t *pr, int size);
|
|
void (*free_progs_mem) (progs_t *pr, void *mem);
|
|
|
|
int (*resolve) (progs_t *pr);
|
|
|
|
const char *progs_name;
|
|
|
|
dprograms_t *progs;
|
|
int progs_size;
|
|
unsigned short crc;
|
|
int denorm_found;
|
|
|
|
struct memzone_s *zone;
|
|
int zone_size;
|
|
|
|
/// \name builtin functions
|
|
//@{
|
|
struct hashtab_s *builtin_hash;
|
|
struct hashtab_s *builtin_num_hash;
|
|
unsigned bi_next;
|
|
unsigned (*bi_map) (progs_t *pr, unsigned binum);
|
|
//@}
|
|
|
|
/// \name symbol management
|
|
//@{
|
|
struct hashtab_s *function_hash;
|
|
struct hashtab_s *global_hash;
|
|
struct hashtab_s *field_hash;
|
|
//@}
|
|
|
|
/// \name load hooks
|
|
//@{
|
|
int num_load_funcs;
|
|
int max_load_funcs;
|
|
pr_load_func_t **load_funcs;
|
|
|
|
/// cleared each load
|
|
//@{
|
|
int num_load_finish_funcs;
|
|
int max_load_finish_funcs;
|
|
pr_load_func_t **load_finish_funcs;
|
|
//@}
|
|
//@}
|
|
|
|
/// \name string management
|
|
//@{
|
|
struct dstring_mem_s *ds_mem;
|
|
strref_t *free_string_refs;
|
|
strref_t *static_strings;
|
|
strref_t **string_map;
|
|
strref_t *return_strings[PR_RS_SLOTS];
|
|
int rs_slot;
|
|
unsigned dyn_str_size;
|
|
struct hashtab_s *strref_hash;
|
|
int num_strings;
|
|
strref_t *pr_xtstr;
|
|
//@}
|
|
|
|
/// \name memory map
|
|
//@{
|
|
dfunction_t *pr_functions;
|
|
bfunction_t *function_table;
|
|
char *pr_strings;
|
|
int pr_stringsize;
|
|
ddef_t *pr_globaldefs;
|
|
ddef_t *pr_fielddefs;
|
|
dstatement_t *pr_statements;
|
|
pr_type_t *pr_globals;
|
|
int globals_size;
|
|
//@}
|
|
|
|
/// \name parameter block
|
|
//@{
|
|
pr_type_t *pr_return;
|
|
pr_type_t *pr_params[MAX_PARMS];
|
|
pr_type_t *pr_real_params[MAX_PARMS];
|
|
pr_type_t *pr_param_ptrs[2];
|
|
pr_type_t *pr_saved_params;
|
|
int pr_saved_argc;
|
|
int pr_param_size; ///< covers both params and return
|
|
//@}
|
|
|
|
int pr_edict_size; ///< in bytes
|
|
int pr_edictareasize; ///< for bounds checking, starts at 0
|
|
func_t edict_parse;
|
|
|
|
/// \name execution state
|
|
//@{
|
|
int pr_argc;
|
|
|
|
qboolean pr_trace;
|
|
int pr_trace_depth;
|
|
bfunction_t *pr_xfunction;
|
|
int pr_xstatement;
|
|
|
|
prstack_t pr_stack[MAX_STACK_DEPTH];
|
|
int pr_depth;
|
|
|
|
int localstack[LOCALSTACK_SIZE];
|
|
int localstack_used;
|
|
//@}
|
|
|
|
/// \name resources
|
|
//@{
|
|
pr_resource_t *resources;
|
|
struct hashtab_s *resource_hash;
|
|
//@}
|
|
|
|
/// \name obj info
|
|
//@{
|
|
int selector_index;
|
|
int selector_index_max;
|
|
struct obj_list_s **selector_sels;
|
|
string_t *selector_names;
|
|
struct hashtab_s *selector_hash;
|
|
struct hashtab_s *classes;
|
|
struct hashtab_s *load_methods;
|
|
struct obj_list_s *unresolved_classes;
|
|
struct obj_list_s *unclaimed_categories;
|
|
struct obj_list_s *unclaimed_proto_list;
|
|
struct obj_list_s *module_list;
|
|
struct obj_list_s *class_tree_list;
|
|
//@}
|
|
|
|
/// \name debug info
|
|
//@{
|
|
const char *debugfile;
|
|
struct pr_debug_header_s *debug;
|
|
struct pr_auxfunction_s *auxfunctions;
|
|
struct pr_auxfunction_s **auxfunction_map;
|
|
struct pr_lineno_s *linenos;
|
|
ddef_t *local_defs;
|
|
pr_type_t *watch;
|
|
int wp_conditional;
|
|
pr_type_t wp_val;
|
|
//@}
|
|
|
|
/// \name globals and fields needed by the VM
|
|
//@{
|
|
struct {
|
|
float *time; ///< required for OP_STATE
|
|
pr_int_t *self; ///< required for OP_STATE
|
|
} globals;
|
|
struct {
|
|
pr_int_t nextthink; ///< required for OP_STATE
|
|
pr_int_t frame; ///< required for OP_STATE
|
|
pr_int_t think; ///< required for OP_STATE
|
|
pr_int_t this; ///< optional for entity<->object linking
|
|
} fields;
|
|
//@}
|
|
};
|
|
|
|
/** \addtogroup progs_data_access
|
|
*/
|
|
//@{
|
|
|
|
/** Convert a progs offset/pointer to a C pointer.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param o offset into global data space
|
|
\return C pointer represented by the parameter. 0 offset -> NULL
|
|
*/
|
|
static inline pr_type_t *
|
|
PR_GetPointer (progs_t *pr, pointer_t o)
|
|
{
|
|
return o ? pr->pr_globals + o : 0;
|
|
}
|
|
|
|
/** Convert a C pointer to a progs offset/pointer.
|
|
\param pr pointer to ::progs_t VM struct
|
|
\param p C pointer to be converted.
|
|
\return Progs offset/pointer represented by \c p. NULL -> 0 offset
|
|
*/
|
|
static inline pointer_t
|
|
PR_SetPointer (progs_t *pr, void *p)
|
|
{
|
|
return p ? (pr_type_t *) p - pr->pr_globals : 0;
|
|
}
|
|
|
|
//@}
|
|
|
|
/** \example vm-exec.c
|
|
*/
|
|
|
|
#endif//__QF_progs_h
|