Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-// AK new vm
+// AK new vm
#include "quakedef.h"
#include "progsvm.h"
qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s);
// LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
-cvar_t prvm_boundscheck = {0, "prvm_boundscheck", "1"};
+cvar_t prvm_boundscheck = {0, "prvm_boundscheck", "1", "enables detection of out of bounds memory access in the QuakeC code being run (in other words, prevents really exceedingly bad QuakeC code from doing nasty things to your computer)"};
// LordHavoc: prints every opcode as it executes - warning: this is significant spew
-cvar_t prvm_traceqc = {0, "prvm_traceqc", "0"};
-
-ddef_t *PRVM_ED_FindField (const char *name);
-mfunction_t *PRVM_ED_FindFunction (const char *name);
+cvar_t prvm_traceqc = {0, "prvm_traceqc", "0", "prints every QuakeC statement as it is executed (only for really thorough debugging!)"};
//============================================================================
// mempool handling
PRVM_MEM_Alloc
===============
*/
-void PRVM_MEM_Alloc()
+void PRVM_MEM_Alloc(void)
{
int i;
// reserve space for the null entity aka world
// check bound of max_edicts
- prog->max_edicts = bound(1, prog->max_edicts, prog->limit_edicts);
- prog->num_edicts = bound(1, prog->num_edicts, prog->max_edicts);
+ prog->max_edicts = bound(1 + prog->reserved_edicts, prog->max_edicts, prog->limit_edicts);
+ prog->num_edicts = bound(1 + prog->reserved_edicts, prog->num_edicts, prog->max_edicts);
// edictprivate_size has to be min as big prvm_edict_private_t
- prog->edictprivate_size = max(prog->edictprivate_size,(int)sizeof(prvm_edict_private_t));
+ prog->edictprivate_size = max(prog->edictprivate_size,(int)sizeof(prvm_edict_private_t));
// alloc edicts
- prog->edicts = Mem_Alloc(prog->edicts_mempool,prog->limit_edicts * sizeof(prvm_edict_t));
-
+ prog->edicts = (prvm_edict_t *)Mem_Alloc(prog->progs_mempool,prog->limit_edicts * sizeof(prvm_edict_t));
+
// alloc edict private space
- prog->edictprivate = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edictprivate_size);
-
+ prog->edictprivate = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edictprivate_size);
+
// alloc edict fields
- prog->edictsfields = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edict_size);
+ prog->edictsfields = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edict_size);
// set edict pointers
for(i = 0; i < prog->max_edicts; i++)
{
- prog->edicts[i].p.e = (prvm_edict_private_t *)((qbyte *)prog->edictprivate + i * prog->edictprivate_size);
- prog->edicts[i].v = (void*)((qbyte *)prog->edictsfields + i * prog->edict_size);
+ prog->edicts[i].priv.required = (prvm_edict_private_t *)((unsigned char *)prog->edictprivate + i * prog->edictprivate_size);
+ prog->edicts[i].fields.vp = (void*)((unsigned char *)prog->edictsfields + i * prog->edict_size);
}
}
PRVM_MEM_IncreaseEdicts
===============
*/
-void PRVM_MEM_IncreaseEdicts()
+void PRVM_MEM_IncreaseEdicts(void)
{
int i;
- int oldmaxedicts = prog->max_edicts;
+ int oldmaxedicts = prog->max_edicts;
void *oldedictsfields = prog->edictsfields;
void *oldedictprivate = prog->edictprivate;
-
+
if(prog->max_edicts >= prog->limit_edicts)
return;
-
+
PRVM_GCALL(begin_increase_edicts)();
// increase edicts
prog->max_edicts = min(prog->max_edicts + 256, prog->limit_edicts);
- prog->edictsfields = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edict_size);
- prog->edictprivate = Mem_Alloc(prog->edicts_mempool, prog->max_edicts * prog->edictprivate_size);
+ prog->edictsfields = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edict_size);
+ prog->edictprivate = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edictprivate_size);
memcpy(prog->edictsfields, oldedictsfields, oldmaxedicts * prog->edict_size);
memcpy(prog->edictprivate, oldedictprivate, oldmaxedicts * prog->edictprivate_size);
//set e and v pointers
for(i = 0; i < prog->max_edicts; i++)
{
- prog->edicts[i].p.e = (prvm_edict_private_t *)((qbyte *)prog->edictprivate + i * prog->edictprivate_size);
- prog->edicts[i].v = (void*)((qbyte *)prog->edictsfields + i * prog->edict_size);
+ prog->edicts[i].priv.required = (prvm_edict_private_t *)((unsigned char *)prog->edictprivate + i * prog->edictprivate_size);
+ prog->edicts[i].fields.vp = (void*)((unsigned char *)prog->edictsfields + i * prog->edict_size);
}
PRVM_GCALL(end_increase_edicts)();
return d->ofs*4;
}
+ddef_t* PRVM_ED_FindGlobal(const char *name);
+int PRVM_ED_FindGlobalOffset(const char *global)
+{
+ ddef_t *d;
+ d = PRVM_ED_FindGlobal(global);
+ if (!d)
+ return 0;
+ return d->ofs*4;
+}
+
qboolean PRVM_ProgLoaded(int prognr)
{
if(prognr < 0 || prognr >= PRVM_MAXPROGS)
*/
void PRVM_SetProg(int prognr)
{
- if(prognr && prognr < PRVM_MAXPROGS)
- {
+ if(0 <= prognr && prognr < PRVM_MAXPROGS)
+ {
if(prog_list[prognr].loaded)
prog = &prog_list[prognr];
else
- PRVM_ERROR("%i(%s) not loaded !\n", prognr, PRVM_NAME);
+ PRVM_ERROR("%i not loaded !", prognr);
return;
}
- PRVM_ERROR("Invalid program number %i\n", prognr);
+ PRVM_ERROR("Invalid program number %i", prognr);
}
/*
*/
void PRVM_ED_ClearEdict (prvm_edict_t *e)
{
- int num;
- memset (e->v, 0, prog->progs->entityfields * 4);
- e->p.e->free = false;
- // LordHavoc: for consistency set these here
- num = PRVM_NUM_FOR_EDICT(e) - 1;
+ memset (e->fields.vp, 0, prog->progs->entityfields * 4);
+ e->priv.required->free = false;
// AK: Let the init_edict function determine if something needs to be initialized
- PRVM_GCALL(init_edict)(num);
+ PRVM_GCALL(init_edict)(e);
}
/*
// AK: changed i=svs.maxclients+1
// AK: changed so the edict 0 wont spawn -> used as reserved/world entity
// although the menu/client has no world
- for (i = 1;i < prog->num_edicts;i++)
+ for (i = prog->reserved_edicts + 1;i < prog->num_edicts;i++)
{
e = PRVM_EDICT_NUM(i);
// the first couple seconds of server time can involve a lot of
// freeing and allocating, so relax the replacement policy
- if (e->p.e->free && ( e->p.e->freetime < 2 || (*prog->time - e->p.e->freetime) > 0.5 ) )
+ if (e->priv.required->free && ( e->priv.required->freetime < 2 || (*prog->time - e->priv.required->freetime) > 0.5 ) )
{
PRVM_ED_ClearEdict (e);
return e;
}
}
- if (i == MAX_EDICTS)
+ if (i == prog->limit_edicts)
PRVM_ERROR ("%s: PRVM_ED_Alloc: no free edicts",PRVM_NAME);
prog->num_edicts++;
*/
void PRVM_ED_Free (prvm_edict_t *ed)
{
- // dont delete the null entity (world)
- if(PRVM_NUM_FOR_EDICT(ed) == 0)
+ // dont delete the null entity (world) or reserved edicts
+ if(PRVM_NUM_FOR_EDICT(ed) <= prog->reserved_edicts )
return;
PRVM_GCALL(free_edict)(ed);
- ed->p.e->free = true;
- ed->p.e->freetime = *prog->time;
+ ed->priv.required->free = true;
+ ed->priv.required->freetime = *prog->time;
}
//===========================================================================
*/
char *PRVM_ValueString (etype_t type, prvm_eval_t *val)
{
- static char line[1024]; // LordHavoc: enlarged a bit (was 256)
+ static char line[MAX_INPUTLINE];
ddef_t *def;
mfunction_t *f;
int n;
- type &= ~DEF_SAVEGLOBAL;
+ type = (etype_t)((int) type & ~DEF_SAVEGLOBAL);
switch (type)
{
break;
case ev_entity:
n = val->edict;
- if (n < 0 || n >= MAX_EDICTS)
+ if (n < 0 || n >= prog->limit_edicts)
sprintf (line, "entity %i (invalid!)", n);
else
sprintf (line, "entity %i", n);
*/
char *PRVM_UglyValueString (etype_t type, prvm_eval_t *val)
{
- static char line[4096];
+ static char line[MAX_INPUTLINE];
int i;
- char *s;
+ const char *s;
ddef_t *def;
mfunction_t *f;
-
- type &= ~DEF_SAVEGLOBAL;
-
+
+ type = (etype_t)((int)type & ~DEF_SAVEGLOBAL);
+
switch (type)
{
case ev_string:
line[i] = '\0';
break;
case ev_entity:
- snprintf (line, sizeof (line), "%i", PRVM_NUM_FOR_EDICT(PRVM_PROG_TO_EDICT(val->edict)));
+ dpsnprintf (line, sizeof (line), "%i", PRVM_NUM_FOR_EDICT(PRVM_PROG_TO_EDICT(val->edict)));
break;
case ev_function:
- f = pr_functions + val->function;
+ f = prog->functions + val->function;
strlcpy (line, PRVM_GetString (f->s_name), sizeof (line));
break;
case ev_field:
def = PRVM_ED_FieldAtOfs ( val->_int );
- snprintf (line, sizeof (line), ".%s", PRVM_GetString(def->s_name));
+ dpsnprintf (line, sizeof (line), ".%s", PRVM_GetString(def->s_name));
break;
case ev_void:
- snprintf (line, sizeof (line), "void");
+ dpsnprintf (line, sizeof (line), "void");
break;
case ev_float:
- snprintf (line, sizeof (line), "%f", val->_float);
+ dpsnprintf (line, sizeof (line), "%f", val->_float);
break;
case ev_vector:
- snprintf (line, sizeof (line), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
+ dpsnprintf (line, sizeof (line), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
break;
default:
- snprintf (line, sizeof (line), "bad type %i", type);
+ dpsnprintf (line, sizeof (line), "bad type %i", type);
break;
}
-
+
return line;
}
char *PRVM_GlobalString (int ofs)
{
char *s;
- int i;
+ size_t i;
ddef_t *def;
void *val;
static char line[128];
- val = (void *)&prog->globals[ofs];
+ val = (void *)&prog->globals.generic[ofs];
def = PRVM_ED_GlobalAtOfs(ofs);
if (!def)
sprintf (line,"%i(?)", ofs);
else
{
- s = PRVM_ValueString (def->type, val);
+ s = PRVM_ValueString ((etype_t)def->type, (prvm_eval_t *)val);
sprintf (line,"%i(%s)%s", ofs, PRVM_GetString(def->s_name), s);
}
char *PRVM_GlobalStringNoContents (int ofs)
{
- int i;
+ size_t i;
ddef_t *def;
static char line[128];
// LordHavoc: changed to print out every 4096 characters (incase there are a lot of fields to print)
void PRVM_ED_Print(prvm_edict_t *ed)
{
- int l;
+ size_t l;
ddef_t *d;
int *v;
int i, j;
- char *name;
+ const char *name;
int type;
- char tempstring[8192], tempstring2[260]; // temporary string buffers
+ char tempstring[MAX_INPUTLINE], tempstring2[260]; // temporary string buffers
- if (ed->p.e->free)
+ if (ed->priv.required->free)
{
Con_Printf("%s: FREE\n",PRVM_NAME);
return;
if (name[strlen(name)-2] == '_')
continue; // skip _x, _y, _z vars
- v = (int *)((char *)ed->v + d->ofs*4);
+ v = (int *)((char *)ed->fields.vp + d->ofs*4);
// if the value is still all 0, skip the field
type = d->type & ~DEF_SAVEGLOBAL;
if (j == prvm_type_size[type])
continue;
- if (strlen(name) > 256)
+ if (strlen(name) > sizeof(tempstring2)-4)
{
- memcpy (tempstring2, name, 256);
- tempstring2[256] = tempstring2[257] = tempstring2[258] = '.';
- tempstring2[259] = 0;
+ memcpy (tempstring2, name, sizeof(tempstring2)-4);
+ tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
+ tempstring2[sizeof(tempstring2)-1] = 0;
name = tempstring2;
}
strcat(tempstring, name);
strcat(tempstring, " ");
strcat(tempstring, " ");
- name = PRVM_ValueString(d->type, (prvm_eval_t *)v);
- if (strlen(name) > 256)
+ name = PRVM_ValueString((etype_t)d->type, (prvm_eval_t *)v);
+ if (strlen(name) > sizeof(tempstring2)-4)
{
- memcpy (tempstring2, name, 256);
- tempstring2[256] = tempstring2[257] = tempstring2[258] = '.';
- tempstring2[259] = 0;
+ memcpy (tempstring2, name, sizeof(tempstring2)-4);
+ tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
+ tempstring2[sizeof(tempstring2)-1] = 0;
name = tempstring2;
}
strcat(tempstring, name);
strcat(tempstring, "\n");
- if (strlen(tempstring) >= 4096)
+ if (strlen(tempstring) >= sizeof(tempstring)/2)
{
Con_Print(tempstring);
tempstring[0] = 0;
ddef_t *d;
int *v;
int i, j;
- char *name;
+ const char *name;
int type;
FS_Print(f, "{\n");
- if (ed->p.e->free)
+ if (ed->priv.required->free)
{
FS_Print(f, "}\n");
return;
if (name[strlen(name)-2] == '_')
continue; // skip _x, _y, _z vars
- v = (int *)((char *)ed->v + d->ofs*4);
+ v = (int *)((char *)ed->fields.vp + d->ofs*4);
// if the value is still all 0, skip the field
type = d->type & ~DEF_SAVEGLOBAL;
continue;
FS_Printf(f,"\"%s\" ",name);
- FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString(d->type, (prvm_eval_t *)v));
+ FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)d->type, (prvm_eval_t *)v));
}
FS_Print(f, "}\n");
Con_Print("prvm_edicts <program name>\n");
return;
}
-
+
PRVM_Begin;
if(!PRVM_SetProgFromString(Cmd_Argv(1)))
return;
for (i=0 ; i<prog->num_edicts ; i++)
{
ent = PRVM_EDICT_NUM(i);
- if (ent->p.e->free)
+ if (ent->priv.required->free)
continue;
active++;
}
-
+
Con_Printf("num_edicts:%3i\n", prog->num_edicts);
Con_Printf("active :%3i\n", active);
}
{
ddef_t *def;
int i;
- char *name;
+ const char *name;
int type;
FS_Print(f,"{\n");
name = PRVM_GetString(def->s_name);
FS_Printf(f,"\"%s\" ", name);
- FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString(type, (prvm_eval_t *)&prog->globals[def->ofs]));
+ FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)type, (prvm_eval_t *)&prog->globals.generic[def->ofs]));
}
FS_Print(f,"}\n");
}
*/
void PRVM_ED_ParseGlobals (const char *data)
{
- char keyname[1024]; // LordHavoc: good idea? bad idea? was 64
+ char keyname[MAX_INPUTLINE];
ddef_t *key;
while (1)
{
// parse key
if (!COM_ParseToken(&data, false))
- PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
+ PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
if (com_token[0] == '}')
break;
// parse value
if (!COM_ParseToken(&data, false))
- PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
+ PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
if (com_token[0] == '}')
- PRVM_ERROR ("PRVM_ED_ParseEntity: closing brace without data");
+ PRVM_ERROR ("PRVM_ED_ParseGlobals: closing brace without data");
key = PRVM_ED_FindGlobal (keyname);
if (!key)
//============================================================================
-/*
-=============
-PRVM_ED_NewString
-=============
-*/
-char *PRVM_ED_NewString (const char *string)
-{
- char *new, *new_p;
- int i,l;
-
- l = strlen(string) + 1;
- new = Mem_Alloc(prog->edictstring_mempool, l);
- new_p = new;
-
- for (i=0 ; i< l ; i++)
- {
- if (string[i] == '\\' && i < l-1)
- {
- i++;
- if (string[i] == 'n')
- *new_p++ = '\n';
- else
- *new_p++ = '\\';
- }
- else
- *new_p++ = string[i];
- }
-
- return new;
-}
-
/*
=============
PRVM_ED_ParseEval
*/
qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s)
{
- int i;
+ int i, l;
+ char *new_p;
ddef_t *def;
prvm_eval_t *val;
mfunction_t *func;
if (ent)
- val = (prvm_eval_t *)((int *)ent->v + key->ofs);
+ val = (prvm_eval_t *)((int *)ent->fields.vp + key->ofs);
else
- val = (prvm_eval_t *)((int *)prog->globals + key->ofs);
+ val = (prvm_eval_t *)((int *)prog->globals.generic + key->ofs);
switch (key->type & ~DEF_SAVEGLOBAL)
{
case ev_string:
- val->string = PRVM_SetString(PRVM_ED_NewString(s));
+ l = (int)strlen(s) + 1;
+ val->string = PRVM_AllocString(l, &new_p);
+ for (i = 0;i < l;i++)
+ {
+ if (s[i] == '\\' && i < l-1)
+ {
+ i++;
+ if (s[i] == 'n')
+ *new_p++ = '\n';
+ else if (s[i] == 'r')
+ *new_p++ = '\r';
+ else
+ *new_p++ = s[i];
+ }
+ else
+ *new_p++ = s[i];
+ }
break;
case ev_float:
while (*s && *s <= ' ')
s++;
i = atoi(s);
- if (i < 0 || i >= MAX_EDICTS)
- Con_Printf("PRVM_ED_ParseEpair: ev_entity reference too large (edict %i >= MAX_EDICTS %i) on %s\n", i, MAX_EDICTS, PRVM_NAME);
+ if (i >= prog->limit_edicts)
+ Con_Printf("PRVM_ED_ParseEpair: ev_entity reference too large (edict %u >= MAX_EDICTS %u) on %s\n", (unsigned int)i, (unsigned int)MAX_EDICTS, PRVM_NAME);
while (i >= prog->max_edicts)
PRVM_MEM_IncreaseEdicts();
//SV_IncreaseEdicts();
// if SV_IncreaseEdicts was called the base pointer needs to be updated
if (ent)
- val = (prvm_eval_t *)((int *)ent->v + key->ofs);
- val->edict = PRVM_EDICT_TO_PROG(EDICT_NUM(i));
+ val = (prvm_eval_t *)((int *)ent->fields.vp + key->ofs);
+ val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM((int)i));
break;
case ev_field:
break;
default:
- Con_Printf("PRVM_ED_ParseEpair: Unknown key->type %i for key \"%s\" on %s\n", key->type, PR_GetString(key->s_name), PRVM_NAME);
+ Con_Printf("PRVM_ED_ParseEpair: Unknown key->type %i for key \"%s\" on %s\n", key->type, PRVM_GetString(key->s_name), PRVM_NAME);
return false;
}
return true;
Used for initial level load and for savegames.
====================
*/
+extern cvar_t developer_entityparsing;
const char *PRVM_ED_ParseEdict (const char *data, prvm_edict_t *ent)
{
ddef_t *key;
qboolean anglehack;
qboolean init;
char keyname[256];
- int n;
+ size_t n;
init = false;
{
// parse key
if (!COM_ParseToken(&data, false))
- PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
+ PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
+ if (developer_entityparsing.integer)
+ Con_Printf("Key: \"%s\"", com_token);
if (com_token[0] == '}')
break;
// parse value
if (!COM_ParseToken(&data, false))
- PRVM_ERROR ("PRVM_ED_ParseEntity: EOF without closing brace");
+ PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
+ if (developer_entityparsing.integer)
+ Con_Printf(" \"%s\"\n", com_token);
if (com_token[0] == '}')
- PRVM_ERROR ("PRVM_ED_ParseEntity: closing brace without data");
+ PRVM_ERROR ("PRVM_ED_ParseEdict: closing brace without data");
init = true;
+ // ignore attempts to set key "" (this problem occurs in nehahra neh1m8.bsp)
+ if (!keyname[0])
+ continue;
+
// keynames with a leading underscore are used for utility comments,
// and are immediately discarded by quake
if (keyname[0] == '_')
}
if (!init)
- ent->p.e->free = true;
+ ent->priv.required->free = true;
return data;
}
if (com_token[0] != '{')
PRVM_ERROR ("PRVM_ED_LoadFromFile: %s: found %s when expecting {", PRVM_NAME, com_token);
- // CHANGED: this is not conform to ED_LoadFromFile
- if(!prog->num_edicts)
+ // CHANGED: this is not conform to PR_LoadFromFile
+ if(prog->loadintoworld)
+ {
+ prog->loadintoworld = false;
ent = PRVM_EDICT_NUM(0);
- else
+ }
+ else
ent = PRVM_ED_Alloc();
// clear it
if (ent != prog->edicts) // hack
- memset (ent->v, 0, prog->progs->entityfields * 4);
+ memset (ent->fields.vp, 0, prog->progs->entityfields * 4);
data = PRVM_ED_ParseEdict (data, ent);
parsed++;
//
if(prog->self && prog->flag & PRVM_FE_CLASSNAME)
{
- string_t handle = *(string_t*)&((float*)ent->v)[PRVM_ED_FindFieldOffset("classname")];
+ string_t handle = *(string_t*)&((unsigned char*)ent->fields.vp)[PRVM_ED_FindFieldOffset("classname")];
if (!handle)
{
Con_Print("No classname for:\n");
PRVM_ED_Free (ent);
continue;
}
-
+
// look for the spawn function
func = PRVM_ED_FindFunction (PRVM_GetString(handle));
-
+
if (!func)
{
if (developer.integer) // don't confuse non-developers with errors
PRVM_ED_Free (ent);
continue;
}
-
+
// self = ent
PRVM_G_INT(prog->self->ofs) = PRVM_EDICT_TO_PROG(ent);
PRVM_ExecuteProgram (func - prog->functions, "");
}
-
+
spawned++;
- if (ent->p.e->free)
+ if (ent->priv.required->free)
died++;
}
Con_DPrintf("%s: %i new entities parsed, %i new inhibited, %i (%i new) spawned (whereas %i removed self, %i stayed)\n", PRVM_NAME, parsed, inhibited, prog->num_edicts, spawned, died, spawned - died);
-}
+}
// not used
/*
void PRVM_ResetProg()
{
- /*mempool_t *t1, *t2, *t3;
-
- t1 = prog->progs_mempool;
- t2 = prog->edictstring_mempool;
- t3 = prog->edicts_mempool;
-
- Mem_EmptyPool(prog->progs_mempool);
- Mem_EmptyPool(prog->edictstring_mempool);
- Mem_EmptyPool(prog->edicts_mempool);*/
+ PRVM_GCALL(reset_cmd)();
Mem_FreePool(&prog->progs_mempool);
- Mem_FreePool(&prog->edictstring_mempool);
- Mem_FreePool(&prog->edicts_mempool);
-
memset(prog,0,sizeof(prvm_prog_t));
-
- /*prog->time = &prog->_time;
-
- prog->progs_mempool = t1;
- prog->edictstring_mempool = t2;
- prog->edicts_mempool = t3;*/
+}
- PRVM_GCALL(reset_cmd)();
+/*
+===============
+PRVM_LoadLNO
+===============
+*/
+void PRVM_LoadLNO( const char *progname ) {
+ fs_offset_t filesize;
+ unsigned char *lno;
+ unsigned int *header;
+ char filename[512];
+
+ FS_StripExtension( progname, filename, sizeof( filename ) );
+ strlcat( filename, ".lno", sizeof( filename ) );
+
+ lno = FS_LoadFile( filename, tempmempool, false, &filesize );
+ if( !lno ) {
+ return;
+ }
+
+/*
+<Spike> SafeWrite (h, &lnotype, sizeof(int));
+<Spike> SafeWrite (h, &version, sizeof(int));
+<Spike> SafeWrite (h, &numglobaldefs, sizeof(int));
+<Spike> SafeWrite (h, &numpr_globals, sizeof(int));
+<Spike> SafeWrite (h, &numfielddefs, sizeof(int));
+<Spike> SafeWrite (h, &numstatements, sizeof(int));
+<Spike> SafeWrite (h, statement_linenums, numstatements*sizeof(int));
+*/
+ if( (unsigned) filesize < (6 + prog->progs->numstatements) * sizeof( int ) ) {
+ Mem_Free(lno);
+ return;
+ }
+
+ header = (unsigned int *) lno;
+ if( header[ 0 ] == *(unsigned int *) "LNOF" &&
+ LittleLong( header[ 1 ] ) == 1 &&
+ (unsigned int)LittleLong( header[ 2 ] ) == (unsigned int)prog->progs->numglobaldefs &&
+ (unsigned int)LittleLong( header[ 3 ] ) == (unsigned int)prog->progs->numglobals &&
+ (unsigned int)LittleLong( header[ 4 ] ) == (unsigned int)prog->progs->numfielddefs &&
+ (unsigned int)LittleLong( header[ 5 ] ) == (unsigned int)prog->progs->numstatements )
+ {
+ prog->statement_linenums = (int *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof( int ) );
+ memcpy( prog->statement_linenums, (int *) lno + 6, prog->progs->numstatements * sizeof( int ) );
+ }
+ Mem_Free( lno );
}
/*
PRVM_LoadProgs
===============
*/
-void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required_func)
+void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required_func, int numrequiredfields, prvm_required_field_t *required_field)
{
int i;
dstatement_t *st;
ddef_t *infielddefs;
dfunction_t *dfunctions;
+ fs_offset_t filesize;
- Mem_EmptyPool(prog->progs_mempool);
- Mem_EmptyPool(prog->edictstring_mempool);
+ if( prog->loaded ) {
+ PRVM_ERROR ("PRVM_LoadProgs: there is already a %s program loaded!", PRVM_NAME );
+ }
- prog->progs = (dprograms_t *)FS_LoadFile (filename, prog->progs_mempool, false);
- if (prog->progs == NULL)
+ prog->progs = (dprograms_t *)FS_LoadFile (filename, prog->progs_mempool, false, &filesize);
+ if (prog->progs == NULL || filesize < (fs_offset_t)sizeof(dprograms_t))
PRVM_ERROR ("PRVM_LoadProgs: couldn't load %s for %s", filename, PRVM_NAME);
- Con_DPrintf("%s programs occupy %iK.\n", PRVM_NAME, fs_filesize/1024);
+ Con_DPrintf("%s programs occupy %iK.\n", PRVM_NAME, filesize/1024);
- pr_crc = CRC_Block((qbyte *)prog->progs, fs_filesize);
+ prog->filecrc = CRC_Block((unsigned char *)prog->progs, filesize);
// byte swap the header
for (i = 0;i < (int) sizeof(*prog->progs) / 4;i++)
if (prog->progs->version != PROG_VERSION)
PRVM_ERROR ("%s: %s has wrong version number (%i should be %i)", PRVM_NAME, filename, prog->progs->version, PROG_VERSION);
- if (prog->progs->crc != prog->crc)
+ if (prog->progs->crc != prog->headercrc)
PRVM_ERROR ("%s: %s system vars have been modified, progdefs.h is out of date", PRVM_NAME, filename);
- //pr_functions = (dfunction_t *)((qbyte *)progs + progs->ofs_functions);
- dfunctions = (dfunction_t *)((qbyte *)prog->progs + prog->progs->ofs_functions);
+ //prog->functions = (dfunction_t *)((unsigned char *)progs + progs->ofs_functions);
+ dfunctions = (dfunction_t *)((unsigned char *)prog->progs + prog->progs->ofs_functions);
+
prog->strings = (char *)prog->progs + prog->progs->ofs_strings;
- prog->globaldefs = (ddef_t *)((qbyte *)prog->progs + prog->progs->ofs_globaldefs);
+ prog->stringssize = 0;
+ for (i = 0;i < prog->progs->numstrings;i++)
+ {
+ if (prog->progs->ofs_strings + prog->stringssize >= (int)filesize)
+ PRVM_ERROR ("%s: %s strings go past end of file", PRVM_NAME, filename);
+ prog->stringssize += (int)strlen (prog->strings + prog->stringssize) + 1;
+ }
+ prog->numknownstrings = 0;
+ prog->maxknownstrings = 0;
+ prog->knownstrings = NULL;
+ prog->knownstrings_freeable = NULL;
+
+ prog->globaldefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_globaldefs);
// we need to expand the fielddefs list to include all the engine fields,
// so allocate a new place for it
- infielddefs = (ddef_t *)((qbyte *)prog->progs + prog->progs->ofs_fielddefs);
+ infielddefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_fielddefs);
// ( + DPFIELDS )
- prog->fielddefs = Mem_Alloc(prog->progs_mempool, prog->progs->numfielddefs * sizeof(ddef_t));
+ prog->fielddefs = (ddef_t *)Mem_Alloc(prog->progs_mempool, (prog->progs->numfielddefs + numrequiredfields) * sizeof(ddef_t));
- prog->statements = (dstatement_t *)((qbyte *)prog->progs + prog->progs->ofs_statements);
+ prog->statements = (dstatement_t *)((unsigned char *)prog->progs + prog->progs->ofs_statements);
// moved edict_size calculation down below field adding code
- //pr_global_struct = (globalvars_t *)((qbyte *)progs + progs->ofs_globals);
- prog->globals = (float *)((qbyte *)prog->progs + prog->progs->ofs_globals);
+ //pr_global_struct = (globalvars_t *)((unsigned char *)progs + progs->ofs_globals);
+ prog->globals.generic = (float *)((unsigned char *)prog->progs + prog->progs->ofs_globals);
// byte swap the lumps
for (i=0 ; i<prog->progs->numstatements ; i++)
prog->statements[i].c = LittleShort(prog->statements[i].c);
}
- prog->functions = Mem_Alloc(prog->progs_mempool, sizeof(mfunction_t) * prog->progs->numfunctions);
+ prog->functions = (mfunction_t *)Mem_Alloc(prog->progs_mempool, sizeof(mfunction_t) * prog->progs->numfunctions);
for (i = 0;i < prog->progs->numfunctions;i++)
{
prog->functions[i].first_statement = LittleLong (dfunctions[i].first_statement);
prog->fielddefs[i].s_name = LittleLong (infielddefs[i].s_name);
}
-/* // append the darkplaces fields
- for (i = 0;i < (int) DPFIELDS;i++)
+ // append the required fields
+ for (i = 0;i < (int) numrequiredfields;i++)
{
- pr_fielddefs[progs->numfielddefs].type = dpfields[i].type;
- pr_fielddefs[progs->numfielddefs].ofs = progs->entityfields;
- pr_fielddefs[progs->numfielddefs].s_name = PR_SetString(dpfields[i].string);
- if (pr_fielddefs[progs->numfielddefs].type == ev_vector)
- progs->entityfields += 3;
+ prog->fielddefs[prog->progs->numfielddefs].type = required_field[i].type;
+ prog->fielddefs[prog->progs->numfielddefs].ofs = prog->progs->entityfields;
+ prog->fielddefs[prog->progs->numfielddefs].s_name = PRVM_SetEngineString(required_field[i].name);
+ if (prog->fielddefs[prog->progs->numfielddefs].type == ev_vector)
+ prog->progs->entityfields += 3;
else
- progs->entityfields++;
- progs->numfielddefs++;
- }*/
+ prog->progs->entityfields++;
+ prog->progs->numfielddefs++;
+ }
// check required functions
for(i=0 ; i < numrequiredfunc ; i++)
if(PRVM_ED_FindFunction(required_func[i]) == 0)
- PRVM_ERROR("%s: %s not found in %s\n",PRVM_NAME, required_func[i], filename);
+ PRVM_ERROR("%s: %s not found in %s",PRVM_NAME, required_func[i], filename);
for (i=0 ; i<prog->progs->numglobals ; i++)
- ((int *)prog->globals)[i] = LittleLong (((int *)prog->globals)[i]);
+ ((int *)prog->globals.generic)[i] = LittleLong (((int *)prog->globals.generic)[i]);
// moved edict_size calculation down here, below field adding code
- // LordHavoc: this no longer includes the edict_t header
+ // LordHavoc: this no longer includes the prvm_edict_t header
prog->edict_size = prog->progs->entityfields * 4;
- prog->edictareasize = prog->edict_size * MAX_EDICTS;
+ prog->edictareasize = prog->edict_size * prog->limit_edicts;
// LordHavoc: bounds check anything static
for (i = 0,st = prog->statements;i < prog->progs->numstatements;i++,st++)
case OP_IF:
case OP_IFNOT:
if ((unsigned short) st->a >= prog->progs->numglobals || st->b + i < 0 || st->b + i >= prog->progs->numstatements)
- PRVM_ERROR("PRVM_LoadProgs: out of bounds IF/IFNOT (statement %d) in %s\n", i, PRVM_NAME);
+ PRVM_ERROR("PRVM_LoadProgs: out of bounds IF/IFNOT (statement %d) in %s", i, PRVM_NAME);
break;
case OP_GOTO:
if (st->a + i < 0 || st->a + i >= prog->progs->numstatements)
- PRVM_ERROR("PRVM_LoadProgs: out of bounds GOTO (statement %d) in %s\n", i, PRVM_NAME);
+ PRVM_ERROR("PRVM_LoadProgs: out of bounds GOTO (statement %d) in %s", i, PRVM_NAME);
break;
// global global global
case OP_ADD_F:
case OP_LOAD_FNC:
case OP_LOAD_V:
if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
- PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)\n", i);
+ PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)", i);
break;
// global none global
case OP_NOT_F:
case OP_NOT_FNC:
case OP_NOT_ENT:
if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
- PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s\n", i, PRVM_NAME);
+ PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
break;
// 2 globals
case OP_STOREP_F:
case OP_STOREP_V:
case OP_STORE_V:
if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals)
- PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)\n in %s", i, PRVM_NAME);
+ PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
break;
// 1 global
case OP_CALL0:
case OP_DONE:
case OP_RETURN:
if ((unsigned short) st->a >= prog->progs->numglobals)
- PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s\n", i, PRVM_NAME);
+ PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
break;
default:
- PRVM_ERROR("PRVM_LoadProgs: unknown opcode %d at statement %d in %s\n", st->op, i, PRVM_NAME);
+ Con_DPrintf("PRVM_LoadProgs: unknown opcode %d at statement %d in %s", st->op, i, PRVM_NAME);
break;
}
}
+ PRVM_LoadLNO(filename);
+
PRVM_Init_Exec();
prog->loaded = TRUE;
-
+
// set flags & ddef_ts in prog
-
+
prog->flag = 0;
-
+
prog->self = PRVM_ED_FindGlobal("self");
if( PRVM_ED_FindGlobal("time") && PRVM_ED_FindGlobal("time")->type & ev_float )
prog->flag |= PRVM_FE_CHAIN;
if(PRVM_ED_FindField ("classname"))
- prog->flag |= PRVM_FE_CLASSNAME;
+ prog->flag |= PRVM_FE_CLASSNAME;
- if(PRVM_ED_FindField ("nextthink") && PRVM_ED_FindField ("frame") && PRVM_ED_FindField ("think")
- && prog->flag && prog->self)
+ if(PRVM_ED_FindField ("nextthink") && PRVM_ED_FindField ("frame") && PRVM_ED_FindField ("think")
+ && prog->flag && prog->self)
prog->flag |= PRVM_OP_STATE;
-
- PRVM_GCALL(reset_cmd)();
+
PRVM_GCALL(init_cmd)();
// init mempools
{
int i, j, ednum, used, usedamount;
int *counts;
- char tempstring[5000], tempstring2[260], *name;
+ char tempstring[MAX_INPUTLINE], tempstring2[260];
+ const char *name;
prvm_edict_t *ed;
ddef_t *d;
int *v;
if(!PRVM_SetProgFromString(Cmd_Argv(1)))
return;
- counts = Mem_Alloc(tempmempool, prog->progs->numfielddefs * sizeof(int));
+ counts = (int *)Mem_Alloc(tempmempool, prog->progs->numfielddefs * sizeof(int));
for (ednum = 0;ednum < prog->max_edicts;ednum++)
{
ed = PRVM_EDICT_NUM(ednum);
- if (ed->p.e->free)
+ if (ed->priv.required->free)
continue;
for (i = 1;i < prog->progs->numfielddefs;i++)
{
name = PRVM_GetString(d->s_name);
if (name[strlen(name)-2] == '_')
continue; // skip _x, _y, _z vars
- v = (int *)((char *)ed->v + d->ofs*4);
+ v = (int *)((char *)ed->fields.vp + d->ofs*4);
// if the value is still all 0, skip the field
for (j = 0;j < prvm_type_size[d->type & ~DEF_SAVEGLOBAL];j++)
{
strcat(tempstring, tempstring2);
break;
}
- if (strlen(name) > 256)
+ if (strlen(name) > sizeof(tempstring2)-4)
{
- memcpy (tempstring2, name, 256);
- tempstring2[256] = tempstring2[257] = tempstring2[258] = '.';
- tempstring2[259] = 0;
+ memcpy (tempstring2, name, sizeof(tempstring2)-4);
+ tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
+ tempstring2[sizeof(tempstring2)-1] = 0;
name = tempstring2;
}
strcat(tempstring, name);
- for (j = strlen(name);j < 25;j++)
+ for (j = (int)strlen(name);j < 25;j++)
strcat(tempstring, " ");
sprintf(tempstring2, "%5d", counts[i]);
strcat(tempstring, tempstring2);
strcat(tempstring, "\n");
- if (strlen(tempstring) >= 4096)
+ if (strlen(tempstring) >= sizeof(tempstring)/2)
{
Con_Print(tempstring);
tempstring[0] = 0;
if( !global )
Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
else
- Con_Printf( "%s: %s\n", Cmd_Argv(2), PRVM_ValueString( global->type, (prvm_eval_t *) &prog->globals[ global->ofs ] ) );
+ Con_Printf( "%s: %s\n", Cmd_Argv(2), PRVM_ValueString( (etype_t)global->type, (prvm_eval_t *) &prog->globals.generic[ global->ofs ] ) );
PRVM_End;
}
global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
if( !global )
Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
- else
+ else
PRVM_ED_ParseEpair( NULL, global, Cmd_Argv(3) );
PRVM_End;
}
*/
void PRVM_Init (void)
{
- Cmd_AddCommand ("prvm_edict", PRVM_ED_PrintEdict_f);
- Cmd_AddCommand ("prvm_edicts", PRVM_ED_PrintEdicts_f);
- Cmd_AddCommand ("prvm_edictcount", PRVM_ED_Count_f);
- Cmd_AddCommand ("prvm_profile", PRVM_Profile_f);
- Cmd_AddCommand ("prvm_fields", PRVM_Fields_f);
- Cmd_AddCommand ("prvm_globals", PRVM_Globals_f);
- Cmd_AddCommand ("prvm_global", PRVM_Global_f);
- Cmd_AddCommand ("prvm_globalset", PRVM_GlobalSet_f);
- Cmd_AddCommand ("prvm_edictset", PRVM_ED_EdictSet_f);
+ Cmd_AddCommand ("prvm_edict", PRVM_ED_PrintEdict_f, "print all data about an entity number in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_edicts", PRVM_ED_PrintEdicts_f, "set a property on an entity number in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_edictcount", PRVM_ED_Count_f, "prints number of active entities in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_profile", PRVM_Profile_f, "prints execution statistics about the most used QuakeC functions in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_fields", PRVM_Fields_f, "prints usage statistics on properties (how many entities have non-zero values) in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_globals", PRVM_Globals_f, "prints all global variables in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_global", PRVM_Global_f, "prints value of a specified global variable in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_globalset", PRVM_GlobalSet_f, "sets value of a specified global variable in the selected VM (server, client, menu)");
+ Cmd_AddCommand ("prvm_edictset", PRVM_ED_EdictSet_f, "changes value of a specified property of a specified entity in the selected VM (server, client, menu)");
// LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
Cvar_RegisterVariable (&prvm_boundscheck);
Cvar_RegisterVariable (&prvm_traceqc);
void PRVM_InitProg(int prognr)
{
if(prognr < 0 || prognr >= PRVM_MAXPROGS)
- Sys_Error("PRVM_InitProg: Invalid program number %i\n",prognr);
+ Sys_Error("PRVM_InitProg: Invalid program number %i",prognr);
prog = &prog_list[prognr];
memset(prog, 0, sizeof(prvm_prog_t));
prog->time = &prog->_time;
+ prog->error_cmd = Host_Error;
}
int PRVM_GetProgNr()
return prog - prog_list;
}
+void *_PRVM_Alloc(size_t buffersize, const char *filename, int fileline)
+{
+ return _Mem_Alloc(prog->progs_mempool, buffersize, filename, fileline);
+}
+
+void _PRVM_Free(void *buffer, const char *filename, int fileline)
+{
+ _Mem_Free(buffer, filename, fileline);
+}
+
+void _PRVM_FreeAll(const char *filename, int fileline)
+{
+ prog->progs = NULL;
+ prog->fielddefs = NULL;
+ prog->functions = NULL;
+ _Mem_EmptyPool(prog->progs_mempool, filename, fileline);
+}
+
// LordHavoc: turned PRVM_EDICT_NUM into a #define for speed reasons
prvm_edict_t *PRVM_EDICT_NUM_ERROR(int n, char *filename, int fileline)
{
return NULL;
}
-void PRVM_ProcessError(void)
-{
- if(prog)
- PRVM_GCALL(error_cmd)();
-}
-
/*
-int NUM_FOR_EDICT_ERROR(edict_t *e)
+int NUM_FOR_EDICT_ERROR(prvm_edict_t *e)
{
- Host_Error ("NUM_FOR_EDICT: bad pointer %p (world is %p, entity number would be %i)", e, sv.edicts, e - sv.edicts);
+ PRVM_ERROR ("PRVM_NUM_FOR_EDICT: bad pointer %p (world is %p, entity number would be %i)", e, prog->edicts, e - prog->edicts);
return 0;
}
-int NUM_FOR_EDICT(edict_t *e)
+int PRVM_NUM_FOR_EDICT(prvm_edict_t *e)
{
int n;
- n = e - sv.edicts;
- if ((unsigned int)n >= MAX_EDICTS)
- Host_Error ("NUM_FOR_EDICT: bad pointer");
+ n = e - prog->edicts;
+ if ((unsigned int)n >= prog->limit_edicts)
+ Host_Error ("PRVM_NUM_FOR_EDICT: bad pointer");
return n;
}
-//int NoCrash_NUM_FOR_EDICT(edict_t *e)
+//int NoCrash_NUM_FOR_EDICT(prvm_edict_t *e)
//{
-// return e - sv.edicts;
+// return e - prog->edicts;
//}
-//#define EDICT_TO_PROG(e) ((qbyte *)(((edict_t *)e)->v) - (qbyte *)(sv.edictsfields))
-//#define PROG_TO_EDICT(e) (sv.edicts + ((e) / (progs->entityfields * 4)))
-int EDICT_TO_PROG(edict_t *e)
+//#define PRVM_EDICT_TO_PROG(e) ((unsigned char *)(((prvm_edict_t *)e)->v) - (unsigned char *)(prog->edictsfields))
+//#define PRVM_PROG_TO_EDICT(e) (prog->edicts + ((e) / (progs->entityfields * 4)))
+int PRVM_EDICT_TO_PROG(prvm_edict_t *e)
{
int n;
- n = e - sv.edicts;
- if ((unsigned int)n >= (unsigned int)sv.max_edicts)
- Host_Error("EDICT_TO_PROG: invalid edict %8p (number %i compared to world at %8p)\n", e, n, sv.edicts);
+ n = e - prog->edicts;
+ if ((unsigned int)n >= (unsigned int)prog->max_edicts)
+ Host_Error("PRVM_EDICT_TO_PROG: invalid edict %8p (number %i compared to world at %8p)", e, n, prog->edicts);
return n;// EXPERIMENTAL
- //return (qbyte *)e->v - (qbyte *)sv.edictsfields;
+ //return (unsigned char *)e->v - (unsigned char *)prog->edictsfields;
}
-edict_t *PROG_TO_EDICT(int n)
+prvm_edict_t *PRVM_PROG_TO_EDICT(int n)
{
- if ((unsigned int)n >= (unsigned int)sv.max_edicts)
- Host_Error("PROG_TO_EDICT: invalid edict number %i\n", n);
- return sv.edicts + n; // EXPERIMENTAL
- //return sv.edicts + ((n) / (progs->entityfields * 4));
+ if ((unsigned int)n >= (unsigned int)prog->max_edicts)
+ Host_Error("PRVM_PROG_TO_EDICT: invalid edict number %i", n);
+ return prog->edicts + n; // EXPERIMENTAL
+ //return prog->edicts + ((n) / (progs->entityfields * 4));
}
*/
+
+const char *PRVM_GetString(int num)
+{
+ if (num >= 0 && num < prog->stringssize)
+ return prog->strings + num;
+ else if (num < 0 && num >= -prog->numknownstrings)
+ {
+ num = -1 - num;
+ if (!prog->knownstrings[num])
+ PRVM_ERROR("PRVM_GetString: attempt to get string that is already freed");
+ return prog->knownstrings[num];
+ }
+ else
+ {
+ PRVM_ERROR("PRVM_GetString: invalid string offset %i", num);
+ return "";
+ }
+}
+
+int PRVM_SetEngineString(const char *s)
+{
+ int i;
+ if (!s)
+ return 0;
+ if (s >= prog->strings && s <= prog->strings + prog->stringssize)
+ PRVM_ERROR("PRVM_SetEngineString: s in prog->strings area");
+ for (i = 0;i < prog->numknownstrings;i++)
+ if (prog->knownstrings[i] == s)
+ return -1 - i;
+ // new unknown engine string
+ if (developer.integer >= 100)
+ Con_Printf("new engine string %p\n", s);
+ for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
+ if (!prog->knownstrings[i])
+ break;
+ if (i >= prog->numknownstrings)
+ {
+ if (i >= prog->maxknownstrings)
+ {
+ const char **oldstrings = prog->knownstrings;
+ const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
+ prog->maxknownstrings += 128;
+ prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
+ prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
+ if (prog->numknownstrings)
+ {
+ memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
+ memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
+ }
+ }
+ prog->numknownstrings++;
+ }
+ prog->firstfreeknownstring = i + 1;
+ prog->knownstrings[i] = s;
+ return -1 - i;
+}
+
+int PRVM_AllocString(size_t bufferlength, char **pointer)
+{
+ int i;
+ if (!bufferlength)
+ return 0;
+ for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
+ if (!prog->knownstrings[i])
+ break;
+ if (i >= prog->numknownstrings)
+ {
+ if (i >= prog->maxknownstrings)
+ {
+ const char **oldstrings = prog->knownstrings;
+ const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
+ prog->maxknownstrings += 128;
+ prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
+ prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
+ if (prog->numknownstrings)
+ {
+ memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
+ memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
+ }
+ }
+ prog->numknownstrings++;
+ }
+ prog->firstfreeknownstring = i + 1;
+ prog->knownstrings[i] = (char *)PRVM_Alloc(bufferlength);
+ prog->knownstrings_freeable[i] = true;
+ if (pointer)
+ *pointer = (char *)(prog->knownstrings[i]);
+ return -1 - i;
+}
+
+void PRVM_FreeString(int num)
+{
+ if (num == 0)
+ PRVM_ERROR("PRVM_FreeString: attempt to free a NULL string");
+ else if (num >= 0 && num < prog->stringssize)
+ PRVM_ERROR("PRVM_FreeString: attempt to free a constant string");
+ else if (num < 0 && num >= -prog->numknownstrings)
+ {
+ num = -1 - num;
+ if (!prog->knownstrings[num])
+ PRVM_ERROR("PRVM_FreeString: attempt to free a non-existent or already freed string");
+ if (!prog->knownstrings[num])
+ PRVM_ERROR("PRVM_FreeString: attempt to free a string owned by the engine");
+ PRVM_Free((char *)prog->knownstrings[num]);
+ prog->knownstrings[num] = NULL;
+ prog->knownstrings_freeable[num] = false;
+ prog->firstfreeknownstring = min(prog->firstfreeknownstring, num);
+ }
+ else
+ PRVM_ERROR("PRVM_FreeString: invalid string offset %i", num);
+}
+