]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - prvm_edict.c
change representation of string offsets for allocated strings and engine
[xonotic/darkplaces.git] / prvm_edict.c
index 6ba12f52d08db59105c2fb76babd00fd92ba0796..e227d6122a8c342d49678aa8d7ac60ae70b1083c 100644 (file)
@@ -31,6 +31,7 @@ int           prvm_type_size[8] = {1,sizeof(string_t)/4,1,3,1,1,sizeof(func_t)/4,sizeof(v
 ddef_t *PRVM_ED_FieldAtOfs(int ofs);
 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qboolean parsebackslash);
 
+cvar_t prvm_language = {0, "prvm_language", "", "when set, loads progs.dat.LANGUAGENAME.po for string translations; when set to dump, progs.dat.dump.po is written from the strings in the progs"};
 // LordHavoc: prints every opcode as it executes - warning: this is significant spew
 cvar_t prvm_traceqc = {0, "prvm_traceqc", "0", "prints every QuakeC statement as it is executed (only for really thorough debugging!)"};
 // LordHavoc: counts usage of each QuakeC statement
@@ -42,12 +43,9 @@ cvar_t prvm_errordump = {0, "prvm_errordump", "0", "write a savegame on crash to
 cvar_t prvm_reuseedicts_startuptime = {0, "prvm_reuseedicts_startuptime", "2", "allows immediate re-use of freed entity slots during start of new level (value in seconds)"};
 cvar_t prvm_reuseedicts_neverinsameframe = {0, "prvm_reuseedicts_neverinsameframe", "1", "never allows re-use of freed entity slots during same frame"};
 
+static double prvm_reuseedicts_always_allow = 0;
 qboolean prvm_runawaycheck = true;
 
-// LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
-// 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)
-qboolean prvm_boundscheck = true;
-
 extern sizebuf_t vm_tempstringsbuf;
 
 //============================================================================
@@ -77,13 +75,14 @@ void PRVM_MEM_Alloc(void)
        prog->edictprivate = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edictprivate_size);
 
        // alloc edict fields
-       prog->edictsfields = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edict_size);
+       prog->entityfieldsarea = prog->entityfields * prog->max_edicts;
+       prog->edictsfields = (vec_t *)Mem_Alloc(prog->progs_mempool, prog->entityfieldsarea * sizeof(vec_t));
 
        // set edict pointers
        for(i = 0; i < prog->max_edicts; i++)
        {
                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);
+               prog->edicts[i].fields.vp = prog->edictsfields + i * prog->entityfields;
        }
 }
 
@@ -95,9 +94,6 @@ PRVM_MEM_IncreaseEdicts
 void PRVM_MEM_IncreaseEdicts(void)
 {
        int             i;
-       int             oldmaxedicts = prog->max_edicts;
-       void    *oldedictsfields = prog->edictsfields;
-       void    *oldedictprivate = prog->edictprivate;
 
        if(prog->max_edicts >= prog->limit_edicts)
                return;
@@ -107,23 +103,18 @@ void PRVM_MEM_IncreaseEdicts(void)
        // increase edicts
        prog->max_edicts = min(prog->max_edicts + 256, prog->limit_edicts);
 
-       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);
+       prog->entityfieldsarea = prog->entityfields * prog->max_edicts;
+       prog->edictsfields = (vec_t*)Mem_Realloc(prog->progs_mempool, (void *)prog->edictsfields, prog->entityfieldsarea * sizeof(vec_t));
+       prog->edictprivate = (void *)Mem_Realloc(prog->progs_mempool, (void *)prog->edictprivate, prog->max_edicts * prog->edictprivate_size);
 
        //set e and v pointers
        for(i = 0; i < prog->max_edicts; i++)
        {
                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);
+               prog->edicts[i].fields.vp = prog->edictsfields + i * prog->entityfields;
        }
 
        PRVM_GCALL(end_increase_edicts)();
-
-       Mem_Free(oldedictsfields);
-       Mem_Free(oldedictprivate);
 }
 
 //============================================================================
@@ -249,6 +240,8 @@ qboolean PRVM_ED_CanAlloc(prvm_edict_t *e)
 {
        if(!e->priv.required->free)
                return false;
+       if(prvm_reuseedicts_always_allow == realtime)
+               return true;
        if(realtime <= e->priv.required->freetime && prvm_reuseedicts_neverinsameframe.integer)
                return false; // never allow reuse in same frame (causes networking trouble)
        if(e->priv.required->freetime < prog->starttime + prvm_reuseedicts_startuptime.value)
@@ -452,7 +445,7 @@ char *PRVM_ValueString (etype_t type, prvm_eval_t *val)
                break;
        case ev_entity:
                n = val->edict;
-               if (n < 0 || n >= prog->limit_edicts)
+               if (n < 0 || n >= prog->max_edicts)
                        dpsnprintf (line, sizeof(line), "entity %i (invalid!)", n);
                else
                        dpsnprintf (line, sizeof(line), "entity %i", n);
@@ -555,10 +548,10 @@ char *PRVM_UglyValueString (etype_t type, prvm_eval_t *val)
                dpsnprintf (line, sizeof (line), "void");
                break;
        case ev_float:
-               dpsnprintf (line, sizeof (line), "%f", val->_float);
+               dpsnprintf (line, sizeof (line), "%.9g", val->_float);
                break;
        case ev_vector:
-               dpsnprintf (line, sizeof (line), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
+               dpsnprintf (line, sizeof (line), "%.9g %.9g %.9g", val->vector[0], val->vector[1], val->vector[2]);
                break;
        default:
                dpsnprintf (line, sizeof (line), "bad type %i", type);
@@ -663,7 +656,7 @@ void PRVM_ED_Print(prvm_edict_t *ed, const char *wildcard_fieldname)
                                // Didn't match; skip
                                continue;
 
-               v = (int *)((char *)ed->fields.vp + d->ofs*4);
+               v = (int *)(ed->fields.vp + d->ofs);
 
        // if the value is still all 0, skip the field
                type = d->type & ~DEF_SAVEGLOBAL;
@@ -741,7 +734,7 @@ void PRVM_ED_Write (qfile_t *f, prvm_edict_t *ed)
                if (name[strlen(name)-2] == '_')
                        continue;       // skip _x, _y, _z vars
 
-               v = (int *)((char *)ed->fields.vp + d->ofs*4);
+               v = (int *)(ed->fields.vp + d->ofs);
 
        // if the value is still all 0, skip the field
                type = d->type & ~DEF_SAVEGLOBAL;
@@ -995,9 +988,9 @@ qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qbool
        mfunction_t *func;
 
        if (ent)
-               val = (prvm_eval_t *)((int *)ent->fields.vp + key->ofs);
+               val = (prvm_eval_t *)(ent->fields.vp + key->ofs);
        else
-               val = (prvm_eval_t *)((int *)prog->globals.generic + key->ofs);
+               val = (prvm_eval_t *)(prog->globals.generic + key->ofs);
        switch (key->type & ~DEF_SAVEGLOBAL)
        {
        case ev_string:
@@ -1046,12 +1039,12 @@ qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qbool
                        s++;
                i = atoi(s);
                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);
+                       Con_Printf("PRVM_ED_ParseEpair: ev_entity reference too large (edict %u >= MAX_EDICTS %u) on %s\n", (unsigned int)i, prog->limit_edicts, PRVM_NAME);
                while (i >= prog->max_edicts)
                        PRVM_MEM_IncreaseEdicts();
                // if IncreaseEdicts was called the base pointer needs to be updated
                if (ent)
-                       val = (prvm_eval_t *)((int *)ent->fields.vp + key->ofs);
+                       val = (prvm_eval_t *)(ent->fields.vp + key->ofs);
                val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM((int)i));
                break;
 
@@ -1187,7 +1180,7 @@ void PRVM_ED_EdictGet_f(void)
                goto fail;
        }
 
-       v = (prvm_eval_t *)((char *)ed->fields.vp + key->ofs*4);
+       v = (prvm_eval_t *)(ed->fields.vp + key->ofs);
        s = PRVM_UglyValueString(key->type, v);
        if(Cmd_Argc() == 5)
        {
@@ -1412,6 +1405,7 @@ void PRVM_ED_LoadFromFile (const char *data)
        spawned = 0;
        died = 0;
 
+       prvm_reuseedicts_always_allow = realtime;
 
 // parse ents
        while (1)
@@ -1523,6 +1517,8 @@ void PRVM_ED_LoadFromFile (const char *data)
        }
 
        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);
+
+       prvm_reuseedicts_always_allow = 0;
 }
 
 void PRVM_FindOffsets(void)
@@ -1616,6 +1612,8 @@ void PRVM_FindOffsets(void)
        prog->fieldoffsets.nodrawtoclient                 = PRVM_ED_FindFieldOffset("nodrawtoclient");
        prog->fieldoffsets.pflags                         = PRVM_ED_FindFieldOffset("pflags");
        prog->fieldoffsets.ping                           = PRVM_ED_FindFieldOffset("ping");
+       prog->fieldoffsets.packetloss                     = PRVM_ED_FindFieldOffset("ping_packetloss");
+       prog->fieldoffsets.movementloss                   = PRVM_ED_FindFieldOffset("ping_movementloss");
        prog->fieldoffsets.pitch_speed                    = PRVM_ED_FindFieldOffset("pitch_speed");
        prog->fieldoffsets.playermodel                    = PRVM_ED_FindFieldOffset("playermodel");
        prog->fieldoffsets.playerskin                     = PRVM_ED_FindFieldOffset("playerskin");
@@ -1656,6 +1654,8 @@ void PRVM_FindOffsets(void)
        prog->fieldoffsets.jointtype                      = PRVM_ED_FindFieldOffset("jointtype");
        prog->fieldoffsets.movedir                        = PRVM_ED_FindFieldOffset("movedir");
 
+       prog->fieldoffsets.camera_transform               = PRVM_ED_FindFieldOffset("camera_transform");
+
        prog->funcoffsets.CSQC_ConsoleCommand             = PRVM_ED_FindFunctionOffset("CSQC_ConsoleCommand");
        prog->funcoffsets.CSQC_Ent_Remove                 = PRVM_ED_FindFunctionOffset("CSQC_Ent_Remove");
        prog->funcoffsets.CSQC_Ent_Spawn                  = PRVM_ED_FindFunctionOffset("CSQC_Ent_Spawn");
@@ -1690,6 +1690,7 @@ void PRVM_FindOffsets(void)
        prog->globaloffsets.dmg_save                      = PRVM_ED_FindGlobalOffset("dmg_save");
        prog->globaloffsets.dmg_take                      = PRVM_ED_FindGlobalOffset("dmg_take");
        prog->globaloffsets.drawfont                      = PRVM_ED_FindGlobalOffset("drawfont");
+       prog->globaloffsets.drawfontscale                 = PRVM_ED_FindGlobalOffset("drawfontscale");
        prog->globaloffsets.gettaginfo_forward            = PRVM_ED_FindGlobalOffset("gettaginfo_forward");
        prog->globaloffsets.gettaginfo_name               = PRVM_ED_FindGlobalOffset("gettaginfo_name");
        prog->globaloffsets.gettaginfo_offset             = PRVM_ED_FindGlobalOffset("gettaginfo_offset");
@@ -1756,12 +1757,253 @@ PRVM_ResetProg
 ===============
 */
 
+#define PO_HASHSIZE 16384
+typedef struct po_string_s
+{
+       char *key, *value;
+       struct po_string_s *nextonhashchain;
+}
+po_string_t;
+typedef struct po_s
+{
+       po_string_t *hashtable[PO_HASHSIZE];
+}
+po_t;
+void PRVM_PO_UnparseString(char *out, const char *in, size_t outsize)
+{
+       for(;;)
+       {
+               switch(*in)
+               {
+                       case 0:
+                               *out++ = 0;
+                               return;
+                       case '\a': if(outsize >= 2) { *out++ = '\\'; *out++ = 'a'; outsize -= 2; } break;
+                       case '\b': if(outsize >= 2) { *out++ = '\\'; *out++ = 'b'; outsize -= 2; } break;
+                       case '\t': if(outsize >= 2) { *out++ = '\\'; *out++ = 't'; outsize -= 2; } break;
+                       case '\r': if(outsize >= 2) { *out++ = '\\'; *out++ = 'r'; outsize -= 2; } break;
+                       case '\n': if(outsize >= 2) { *out++ = '\\'; *out++ = 'n'; outsize -= 2; } break;
+                       case '\\': if(outsize >= 2) { *out++ = '\\'; *out++ = '\\'; outsize -= 2; } break;
+                       case '"': if(outsize >= 2) { *out++ = '\\'; *out++ = '"'; outsize -= 2; } break;
+                       default:
+                               if(*in >= 0 && *in <= 0x1F)
+                               {
+                                       if(outsize >= 4)
+                                       {
+                                               *out++ = '\\';
+                                               *out++ = '0' + ((*in & 0700) >> 6);
+                                               *out++ = '0' + ((*in & 0070) >> 3);
+                                               *out++ = '0' + ((*in & 0007));
+                                               outsize -= 4;
+                                       }
+                               }
+                               else
+                               {
+                                       if(outsize >= 1)
+                                       {
+                                               *out++ = *in;
+                                               outsize -= 1;
+                                       }
+                               }
+                               break;
+               }
+               ++in;
+       }
+}
+void PRVM_PO_ParseString(char *out, const char *in, size_t outsize)
+{
+       for(;;)
+       {
+               switch(*in)
+               {
+                       case 0:
+                               *out++ = 0;
+                               return;
+                       case '\\':
+                               ++in;
+                               switch(*in)
+                               {
+                                       case 'a': if(outsize > 0) { *out++ = '\a'; --outsize; } break;
+                                       case 'b': if(outsize > 0) { *out++ = '\b'; --outsize; } break;
+                                       case 't': if(outsize > 0) { *out++ = '\t'; --outsize; } break;
+                                       case 'r': if(outsize > 0) { *out++ = '\r'; --outsize; } break;
+                                       case 'n': if(outsize > 0) { *out++ = '\n'; --outsize; } break;
+                                       case '\\': if(outsize > 0) { *out++ = '\\'; --outsize; } break;
+                                       case '"': if(outsize > 0) { *out++ = '"'; --outsize; } break;
+                                       case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7':
+                                               if(outsize > 0) 
+                                                       *out = *in - '0';
+                                               ++in;
+                                               if(*in >= '0' && *in <= '7')
+                                               {
+                                                       if(outsize > 0)
+                                                               *out = (*out << 3) | (*in - '0');
+                                                       ++in;
+                                               }
+                                               if(*in >= '0' && *in <= '7')
+                                               {
+                                                       if(outsize > 0)
+                                                               *out = (*out << 3) | (*in - '0');
+                                                       ++in;
+                                               }
+                                               --in;
+                                               if(outsize > 0)
+                                               {
+                                                       ++out;
+                                                       --outsize;
+                                               }
+                                               break;
+                                       default:
+                                               if(outsize > 0) { *out++ = *in; --outsize; }
+                                               break;
+                               }
+                               break;
+                       default:
+                               if(outsize > 0)
+                               {
+                                       *out++ = *in;
+                                       --outsize;
+                               }
+                               break;
+               }
+               ++in;
+       }
+}
+po_t *PRVM_PO_Load(const char *filename, mempool_t *pool)
+{
+       po_t *po;
+       const char *p, *q;
+       int mode;
+       char inbuf[MAX_INPUTLINE];
+       char decodedbuf[MAX_INPUTLINE];
+       size_t decodedpos;
+       int hashindex;
+       po_string_t thisstr;
+       const char *buf = (const char *) FS_LoadFile(filename, pool, true, NULL);
+
+       if(!buf)
+               return NULL;
+
+       po = Mem_Alloc(pool, sizeof(*po));
+       memset(po, 0, sizeof(*po));
+
+       p = buf;
+       while(*p)
+       {
+               if(*p == '#')
+               {
+                       // skip to newline
+                       p = strchr(p, '\n');
+                       if(!p)
+                               break;
+                       ++p;
+                       continue;
+               }
+               if(*p == '\r' || *p == '\n')
+               {
+                       ++p;
+                       continue;
+               }
+               if(!strncmp(p, "msgid \"", 7))
+               {
+                       mode = 0;
+                       p += 6;
+               }
+               else if(!strncmp(p, "msgstr \"", 8))
+               {
+                       mode = 1;
+                       p += 7;
+               }
+               else
+               {
+                       p = strchr(p, '\n');
+                       if(!p)
+                               break;
+                       ++p;
+                       continue;
+               }
+               decodedpos = 0;
+               while(*p == '"')
+               {
+                       ++p;
+                       q = strchr(p, '\n');
+                       if(!q)
+                               break;
+                       if(*(q-1) == '\r')
+                               --q;
+                       if(*(q-1) != '"')
+                               break;
+                       if((size_t)(q - p) >= (size_t) sizeof(inbuf))
+                               break;
+                       strlcpy(inbuf, p, q - p); // not - 1, because this adds a NUL
+                       PRVM_PO_ParseString(decodedbuf + decodedpos, inbuf, sizeof(decodedbuf) - decodedpos);
+                       decodedpos += strlen(decodedbuf + decodedpos);
+                       if(*q == '\r')
+                               ++q;
+                       if(*q == '\n')
+                               ++q;
+                       p = q;
+               }
+               if(mode == 0)
+               {
+                       if(thisstr.key)
+                               Mem_Free(thisstr.key);
+                       thisstr.key = Mem_Alloc(pool, decodedpos + 1);
+                       memcpy(thisstr.key, decodedbuf, decodedpos + 1);
+               }
+               else if(decodedpos > 0 && thisstr.key) // skip empty translation results
+               {
+                       thisstr.value = Mem_Alloc(pool, decodedpos + 1);
+                       memcpy(thisstr.value, decodedbuf, decodedpos + 1);
+                       hashindex = CRC_Block((const unsigned char *) thisstr.key, strlen(thisstr.key)) % PO_HASHSIZE;
+                       thisstr.nextonhashchain = po->hashtable[hashindex];
+                       po->hashtable[hashindex] = Mem_Alloc(pool, sizeof(thisstr));
+                       memcpy(po->hashtable[hashindex], &thisstr, sizeof(thisstr));
+                       memset(&thisstr, 0, sizeof(thisstr));
+               }
+       }
+       
+       Mem_Free((char *) buf);
+       return po;
+}
+const char *PRVM_PO_Lookup(po_t *po, const char *str)
+{
+       int hashindex = CRC_Block((const unsigned char *) str, strlen(str)) % PO_HASHSIZE;
+       po_string_t *p = po->hashtable[hashindex];
+       while(p)
+       {
+               if(!strcmp(str, p->key))
+                       return p->value;
+               p = p->nextonhashchain;
+       }
+       return NULL;
+}
+void PRVM_PO_Destroy(po_t *po)
+{
+       int i;
+       for(i = 0; i < PO_HASHSIZE; ++i)
+       {
+               po_string_t *p = po->hashtable[i];
+               while(p)
+               {
+                       po_string_t *q = p;
+                       p = p->nextonhashchain;
+                       Mem_Free(q->key);
+                       Mem_Free(q->value);
+                       Mem_Free(q);
+               }
+       }
+       Mem_Free(po);
+}
+
 void PRVM_LeakTest(void);
 void PRVM_ResetProg(void)
 {
        PRVM_LeakTest();
        PRVM_GCALL(reset_cmd)();
        Mem_FreePool(&prog->progs_mempool);
+       if(prog->po)
+               PRVM_PO_Destroy((po_t *) prog->po);
        memset(prog,0,sizeof(prvm_prog_t));
        prog->starttime = Sys_DoubleTime();
 }
@@ -1875,8 +2117,6 @@ void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required
 
        prog->statement_profile = (double *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof(*prog->statement_profile));
 
-       // moved edict_size calculation down below field adding code
-
        //pr_global_struct = (globalvars_t *)((unsigned char *)progs + progs->ofs_globals);
        prog->globals.generic = (float *)((unsigned char *)prog->progs + prog->progs->ofs_globals);
 
@@ -1936,6 +2176,7 @@ void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required
                        prog->progs->entityfields++;
                prog->progs->numfielddefs++;
        }
+       prog->entityfields = prog->progs->entityfields;
 
        // check required functions
        for(i=0 ; i < numrequiredfunc ; i++)
@@ -1950,11 +2191,6 @@ void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required
        for (i=0 ; i<prog->progs->numglobals ; 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 prvm_edict_t header
-       prog->edict_size = prog->progs->entityfields * 4;
-       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++)
        {
@@ -2072,6 +2308,155 @@ void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required
 
        PRVM_Init_Exec();
 
+       if(*prvm_language.string)
+       // in CSQC we really shouldn't be able to change how stuff works... sorry for now
+       // later idea: include a list of authorized .po file checksums with the csprogs
+       {
+               qboolean deftrans = !!strcmp(PRVM_NAME, "client");
+               if(!strcmp(prvm_language.string, "dump"))
+               {
+                       qfile_t *f = FS_OpenRealFile(va("%s.%s.po", filename, prvm_language.string), "w", false);
+                       Con_Printf("Dumping to %s.%s.po\n", filename, prvm_language.string);
+                       if(f)
+                       {
+                               for (i=0 ; i<prog->progs->numglobaldefs ; i++)
+                               {
+                                       const char *name;
+                                       name = PRVM_GetString(prog->globaldefs[i].s_name);
+                                       if(deftrans ? (!name || strncmp(name, "notranslate_", 12)) : (name && !strncmp(name, "dotranslate_", 12)))
+                                       if((prog->globaldefs[i].type & ~DEF_SAVEGLOBAL) == ev_string)
+                                       {
+                                               prvm_eval_t *val = (prvm_eval_t *)(prog->globals.generic + prog->globaldefs[i].ofs);
+                                               const char *value = PRVM_GetString(val->string);
+                                               if(*value)
+                                               {
+                                                       char buf[MAX_INPUTLINE];
+                                                       PRVM_PO_UnparseString(buf, value, sizeof(buf));
+                                                       FS_Printf(f, "msgid \"%s\"\nmsgstr \"\"\n\n", buf);
+                                               }
+                                       }
+                               }
+                               FS_Close(f);
+                       }
+               }
+               else
+               {
+                       po_t *po = PRVM_PO_Load(va("%s.%s.po", filename, prvm_language.string), prog->progs_mempool);
+                       if(po)
+                       {
+                               for (i=0 ; i<prog->progs->numglobaldefs ; i++)
+                               {
+                                       const char *name;
+                                       name = PRVM_GetString(prog->globaldefs[i].s_name);
+                                       if(deftrans ? (!name || strncmp(name, "notranslate_", 12)) : (name && !strncmp(name, "dotranslate_", 12)))
+                                       if((prog->globaldefs[i].type & ~DEF_SAVEGLOBAL) == ev_string)
+                                       {
+                                               prvm_eval_t *val = (prvm_eval_t *)(prog->globals.generic + prog->globaldefs[i].ofs);
+                                               const char *value = PRVM_GetString(val->string);
+                                               if(*value)
+                                               {
+                                                       value = PRVM_PO_Lookup(po, value);
+                                                       if(value)
+                                                               val->string = PRVM_SetEngineString(value);
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+
+       for (i=0 ; i<prog->progs->numglobaldefs ; i++)
+       {
+               const char *name;
+               name = PRVM_GetString(prog->globaldefs[i].s_name);
+               //Con_Printf("found var %s\n", name);
+               if(name
+                       && !strncmp(name, "autocvar_", 9)
+                       && !(strlen(name) > 1 && name[strlen(name)-2] == '_' && (name[strlen(name)-1] == 'x' || name[strlen(name)-1] == 'y' || name[strlen(name)-1] == 'z'))
+               )
+               {
+                       prvm_eval_t *val = (prvm_eval_t *)(prog->globals.generic + prog->globaldefs[i].ofs);
+                       cvar_t *cvar = Cvar_FindVar(name + 9);
+                       //Con_Printf("PRVM_LoadProgs: autocvar global %s in %s, processing...\n", name, PRVM_NAME);
+                       if(!cvar)
+                       {
+                               const char *value;
+                               char buf[64];
+                               Con_Printf("PRVM_LoadProgs: no cvar for autocvar global %s in %s, creating...\n", name, PRVM_NAME);
+                               switch(prog->globaldefs[i].type & ~DEF_SAVEGLOBAL)
+                               {
+                                       case ev_float:
+                                               if((float)((int)(val->_float)) == val->_float)
+                                                       dpsnprintf(buf, sizeof(buf), "%i", (int)(val->_float));
+                                               else
+                                                       dpsnprintf(buf, sizeof(buf), "%.9g", val->_float);
+                                               value = buf;
+                                               break;
+                                       case ev_vector:
+                                               dpsnprintf(buf, sizeof(buf), "%.9g %.9g %.9g", val->vector[0], val->vector[1], val->vector[2]); value = buf;
+                                               break;
+                                       case ev_string:
+                                               value = PRVM_GetString(val->string);
+                                               break;
+                                       default:
+                                               Con_Printf("PRVM_LoadProgs: invalid type of autocvar global %s in %s\n", name, PRVM_NAME);
+                                               goto fail;
+                               }
+                               cvar = Cvar_Get(name + 9, value, 0, NULL);
+                               if((prog->globaldefs[i].type & ~DEF_SAVEGLOBAL) == ev_string)
+                               {
+                                       val->string = PRVM_SetEngineString(cvar->string);
+                                       cvar->globaldefindex_stringno[prog - prog_list] = val->string;
+                               }
+                               if(!cvar)
+                                       PRVM_ERROR("PRVM_LoadProgs: could not create cvar for autocvar global %s in %s", name, PRVM_NAME);
+                               cvar->globaldefindex_progid[prog - prog_list] = prog->id;
+                               cvar->globaldefindex[prog - prog_list] = i;
+                       }
+                       else if((cvar->flags & CVAR_PRIVATE) == 0)
+                       {
+                               // MUST BE SYNCED WITH cvar.c Cvar_Set
+                               int j;
+                               const char *s;
+                               switch(prog->globaldefs[i].type & ~DEF_SAVEGLOBAL)
+                               {
+                                       case ev_float:
+                                               val->_float = cvar->value;
+                                               break;
+                                       case ev_vector:
+                                               s = cvar->string;
+                                               VectorClear(val->vector);
+                                               for (j = 0;j < 3;j++)
+                                               {
+                                                       while (*s && ISWHITESPACE(*s))
+                                                               s++;
+                                                       if (!*s)
+                                                               break;
+                                                       val->vector[j] = atof(s);
+                                                       while (!ISWHITESPACE(*s))
+                                                               s++;
+                                                       if (!*s)
+                                                               break;
+                                               }
+                                               break;
+                                       case ev_string:
+                                               val->string = PRVM_SetEngineString(cvar->string);
+                                               cvar->globaldefindex_stringno[prog - prog_list] = val->string;
+                                               break;
+                                       default:
+                                               Con_Printf("PRVM_LoadProgs: invalid type of autocvar global %s in %s\n", name, PRVM_NAME);
+                                               goto fail;
+                               }
+                               cvar->globaldefindex_progid[prog - prog_list] = prog->id;
+                               cvar->globaldefindex[prog - prog_list] = i;
+                       }
+                       else
+                               Con_Printf("PRVM_LoadProgs: private cvar for autocvar global %s in %s\n", name, PRVM_NAME);
+               }
+fail:
+               ;
+       }
+
        prog->loaded = TRUE;
 
        // set flags & ddef_ts in prog
@@ -2128,7 +2513,7 @@ void PRVM_Fields_f (void)
                        name = PRVM_GetString(d->s_name);
                        if (name[strlen(name)-2] == '_')
                                continue;       // skip _x, _y, _z vars
-                       v = (int *)((char *)ed->fields.vp + d->ofs*4);
+                       v = (int *)(ed->fields.vp + d->ofs);
                        // if the value is still all 0, skip the field
                        for (j = 0;j < prvm_type_size[d->type & ~DEF_SAVEGLOBAL];j++)
                        {
@@ -2329,9 +2714,7 @@ void PRVM_Init (void)
        Cmd_AddCommand ("menu_cmd", PRVM_GameCommand_Menu_f, "calls the menu QC function GameCommand with the supplied string as argument");
        Cmd_AddCommand ("sv_cmd", PRVM_GameCommand_Server_f, "calls the server QC function GameCommand with the supplied string as argument");
 
-       // COMMANDLINEOPTION: PRVM: -noboundscheck disables the bounds checks (security hole if CSQC is in use!)
-       prvm_boundscheck = !COM_CheckParm("-noboundscheck");
-
+       Cvar_RegisterVariable (&prvm_language);
        Cvar_RegisterVariable (&prvm_traceqc);
        Cvar_RegisterVariable (&prvm_statementprofiling);
        Cvar_RegisterVariable (&prvm_backtraceforwarnings);
@@ -2354,6 +2737,8 @@ PRVM_InitProg
 */
 void PRVM_InitProg(int prognr)
 {
+       static unsigned int progid = 0;
+
        if(prognr < 0 || prognr >= PRVM_MAXPROGS)
                Sys_Error("PRVM_InitProg: Invalid program number %i",prognr);
 
@@ -2364,6 +2749,7 @@ void PRVM_InitProg(int prognr)
 
        memset(prog, 0, sizeof(prvm_prog_t));
        prog->starttime = Sys_DoubleTime();
+       prog->id = ++progid;
 
        prog->error_cmd = Host_Error;
        prog->leaktest_active = prvm_leaktest.integer != 0;
@@ -2376,7 +2762,7 @@ int PRVM_GetProgNr(void)
 
 void *_PRVM_Alloc(size_t buffersize, const char *filename, int fileline)
 {
-       return _Mem_Alloc(prog->progs_mempool, buffersize, filename, fileline);
+       return _Mem_Alloc(prog->progs_mempool, NULL, buffersize, 16, filename, fileline);
 }
 
 void _PRVM_Free(void *buffer, const char *filename, int fileline)
@@ -2399,95 +2785,39 @@ unsigned int PRVM_EDICT_NUM_ERROR(unsigned int n, char *filename, int fileline)
        return 0;
 }
 
-/*
-int NUM_FOR_EDICT_ERROR(prvm_edict_t *e)
-{
-       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 PRVM_NUM_FOR_EDICT(prvm_edict_t *e)
-{
-       int n;
-       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(prvm_edict_t *e)
-//{
-//     return e - prog->edicts;
-//}
-
-//#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 - 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 (unsigned char *)e->v - (unsigned char *)prog->edictsfields;
-}
-prvm_edict_t *PRVM_PROG_TO_EDICT(int n)
-{
-       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));
-}
-*/
-
-
 sizebuf_t vm_tempstringsbuf;
+#define PRVM_KNOWNSTRINGBASE 0x40000000
 
 const char *PRVM_GetString(int num)
 {
-       if (num >= 0)
+       if (num < 0)
        {
-               if (num < prog->stringssize)
-                       return prog->strings + num;
-               else
-#if 1
-               if (num <= prog->stringssize + vm_tempstringsbuf.maxsize)
-               {
-                       num -= prog->stringssize;
-                       if (num < vm_tempstringsbuf.cursize)
-                               return (char *)vm_tempstringsbuf.data + num;
-                       else
-                       {
-                               VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
-                               return "";
-                       }
-               }
+               // invalid
+               VM_Warning("PRVM_GetString: Invalid string offset (%i < 0)\n", num);
+               return "";
+       }
+       else if (num < prog->stringssize)
+       {
+               // constant string from progs.dat
+               return prog->strings + num;
+       }
+       else if (num <= prog->stringssize + vm_tempstringsbuf.maxsize)
+       {
+               // tempstring returned by engine to QC (becomes invalid after returning to engine)
+               num -= prog->stringssize;
+               if (num < vm_tempstringsbuf.cursize)
+                       return (char *)vm_tempstringsbuf.data + num;
                else
-#endif
                {
-                       VM_Warning("PRVM_GetString: Invalid constant-string offset (%i >= %i prog->stringssize)\n", num, prog->stringssize);
+                       VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
                        return "";
                }
        }
-       else
+       else if (num & PRVM_KNOWNSTRINGBASE)
        {
-               num = -1 - num;
-#if 0
-               if (num >= (1<<30))
-               {
-                       // special range reserved for tempstrings
-                       num -= (1<<30);
-                       if (num < vm_tempstringsbuf.cursize)
-                               return (char *)vm_tempstringsbuf.data + num;
-                       else
-                       {
-                               VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
-                               return "";
-                       }
-               }
-               else
-#endif
-               if (num < prog->numknownstrings)
+               // allocated string
+               num = num - PRVM_KNOWNSTRINGBASE;
+               if (num >= 0 && num < prog->numknownstrings)
                {
                        if (!prog->knownstrings[num])
                        {
@@ -2502,6 +2832,23 @@ const char *PRVM_GetString(int num)
                        return "";
                }
        }
+       else
+       {
+               // invalid string offset
+               VM_Warning("PRVM_GetString: Invalid constant-string offset (%i >= %i prog->stringssize)\n", num, prog->stringssize);
+               return "";
+       }
+}
+
+const char *PRVM_ChangeEngineString(int i, const char *s)
+{
+       const char *old;
+       i = i - PRVM_KNOWNSTRINGBASE;
+       if(i < 0 || i >= prog->numknownstrings)
+               PRVM_ERROR("PRVM_ChangeEngineString: s is not an engine string");
+       old = prog->knownstrings[i];
+       prog->knownstrings[i] = s;
+       return old;
 }
 
 int PRVM_SetEngineString(const char *s)
@@ -2516,16 +2863,14 @@ int PRVM_SetEngineString(const char *s)
        if (s >= (char *)vm_tempstringsbuf.data && s < (char *)vm_tempstringsbuf.data + vm_tempstringsbuf.maxsize)
 #if 1
                return prog->stringssize + (s - (char *)vm_tempstringsbuf.data);
-#else
-               return -1 - ((1<<30) + (s - (char *)vm_tempstringsbuf.data));
 #endif
        // see if it's a known string address
        for (i = 0;i < prog->numknownstrings;i++)
                if (prog->knownstrings[i] == s)
-                       return -1 - i;
+                       return PRVM_KNOWNSTRINGBASE + i;
        // new unknown engine string
-       if (developer.integer >= 200)
-               Con_Printf("new engine string %p = \"%s\"\n", s, s);
+       if (developer_insane.integer)
+               Con_DPrintf("new engine string %p = \"%s\"\n", s, s);
        for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
                if (!prog->knownstrings[i])
                        break;
@@ -2556,7 +2901,7 @@ int PRVM_SetEngineString(const char *s)
        prog->knownstrings_freeable[i] = false;
        if(prog->leaktest_active)
                prog->knownstrings_origin[i] = NULL;
-       return -1 - i;
+       return PRVM_KNOWNSTRINGBASE + i;
 }
 
 // temp string handling
@@ -2575,8 +2920,8 @@ int PRVM_SetTempString(const char *s)
        if (!s)
                return 0;
        size = (int)strlen(s) + 1;
-       if (developer.integer >= 300)
-               Con_Printf("PRVM_SetTempString: cursize %i, size %i\n", vm_tempstringsbuf.cursize, size);
+       if (developer_insane.integer)
+               Con_DPrintf("PRVM_SetTempString: cursize %i, size %i\n", vm_tempstringsbuf.cursize, size);
        if (vm_tempstringsbuf.maxsize < vm_tempstringsbuf.cursize + size)
        {
                sizebuf_t old = vm_tempstringsbuf;
@@ -2587,8 +2932,7 @@ int PRVM_SetTempString(const char *s)
                        vm_tempstringsbuf.maxsize *= 2;
                if (vm_tempstringsbuf.maxsize != old.maxsize || vm_tempstringsbuf.data == NULL)
                {
-                       if (developer.integer >= 100)
-                               Con_Printf("PRVM_SetTempString: enlarging tempstrings buffer (%iKB -> %iKB)\n", old.maxsize/1024, vm_tempstringsbuf.maxsize/1024);
+                       Con_DPrintf("PRVM_SetTempString: enlarging tempstrings buffer (%iKB -> %iKB)\n", old.maxsize/1024, vm_tempstringsbuf.maxsize/1024);
                        vm_tempstringsbuf.data = (unsigned char *) Mem_Alloc(sv_mempool, vm_tempstringsbuf.maxsize);
                        if (old.cursize)
                                memcpy(vm_tempstringsbuf.data, old.data, old.cursize);
@@ -2629,7 +2973,12 @@ int PRVM_AllocString(size_t bufferlength, char **pointer)
                                if(prog->leaktest_active)
                                        memcpy((char **)prog->knownstrings_origin, oldstrings_origin, prog->numknownstrings * sizeof(char *));
                        }
-                       // TODO why not Mem_Free the old ones?
+                       if (oldstrings)
+                               Mem_Free(oldstrings);
+                       if (oldstrings_freeable)
+                               Mem_Free((unsigned char *)oldstrings_freeable);
+                       if (oldstrings_origin)
+                               Mem_Free(oldstrings_origin);
                }
                prog->numknownstrings++;
        }
@@ -2640,7 +2989,7 @@ int PRVM_AllocString(size_t bufferlength, char **pointer)
                prog->knownstrings_origin[i] = PRVM_AllocationOrigin();
        if (pointer)
                *pointer = (char *)(prog->knownstrings[i]);
-       return -1 - i;
+       return PRVM_KNOWNSTRINGBASE + i;
 }
 
 void PRVM_FreeString(int num)
@@ -2649,9 +2998,9 @@ void PRVM_FreeString(int num)
                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)
+       else if (num >= PRVM_KNOWNSTRINGBASE && num < PRVM_KNOWNSTRINGBASE + prog->numknownstrings)
        {
-               num = -1 - num;
+               num = num - PRVM_KNOWNSTRINGBASE;
                if (!prog->knownstrings[num])
                        PRVM_ERROR("PRVM_FreeString: attempt to free a non-existent or already freed string");
                if (!prog->knownstrings_freeable[num])
@@ -2691,7 +3040,7 @@ static qboolean PRVM_IsStringReferenced(string_t string)
                        ddef_t *d = &prog->fielddefs[i];
                        if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_string)
                                continue;
-                       if(string == ((prvm_eval_t *) &((float*)ed->fields.vp)[d->ofs])->string)
+                       if(string == ((prvm_eval_t *) &ed->fields.vp[d->ofs])->string)
                                return true;
                }
        }
@@ -2798,7 +3147,7 @@ static qboolean PRVM_IsEdictReferenced(prvm_edict_t *edict, int mark)
                        ddef_t *d = &prog->fielddefs[i];
                        if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_entity)
                                continue;
-                       if(edictnum == ((prvm_eval_t *) &((float*)ed->fields.vp)[d->ofs])->edict)
+                       if(edictnum == ((prvm_eval_t *) &ed->fields.vp[d->ofs])->edict)
                                return true;
                }
        }