csprogs.c

   1 #include "quakedef.h"
   2 #include "progsvm.h"
   3 #include "clprogdefs.h"
   4 #include "csprogs.h"
   5 #include "cl_collision.h"
   6 #include "snd_main.h"
   7 #include "clvm_cmds.h"
   8 #include "prvm_cmds.h"
   9
  10 //============================================================================
  11 // Client prog handling
  12 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
  13
  14 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
  15 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
  16 #define CSQC_END                prog=csqc_tmpprog;
  17
  18 static prvm_prog_t *csqc_tmpprog;
  19
  20 void CL_VM_PreventInformationLeaks(void)
  21 {
  22         prvm_eval_t *val;
  23         if(!cl.csqc_loaded)
  24                 return;
  25         CSQC_BEGIN
  26                 VM_ClearTraceGlobals();
  27                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_networkentity)))
  28                         val->_float = 0;
  29         CSQC_END
  30 }
  31
  32 //[515]: these are required funcs
  33 static char *cl_required_func[] =
  34 {
  35         "CSQC_Init",
  36         "CSQC_InputEvent",
  37         "CSQC_UpdateView",
  38         "CSQC_ConsoleCommand",
  39 };
  40
  41 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
  42
  43 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
  44 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
  45 {
  46         char errorstring[4096];
  47         va_list argptr;
  48
  49         va_start (argptr, format);
  50         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
  51         va_end (argptr);
  52 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
  53
  54         PRVM_Crash();
  55         cl.csqc_loaded = false;
  56
  57         Cvar_SetValueQuick(&csqc_progcrc, -1);
  58         Cvar_SetValueQuick(&csqc_progsize, -1);
  59
  60 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
  61         Host_Error("CL_VM_Error: %s", errorstring);
  62 }
  63 void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
  64 {
  65         prvm_eval_t *val;
  66         if(cl.csqc_loaded)
  67         {
  68                 CSQC_BEGIN
  69                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_take);
  70                 if(val)
  71                         val->_float = dmg_take;
  72                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_save);
  73                 if(val)
  74                         val->_float = dmg_save;
  75                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.dmg_origin);
  76                 if(val)
  77                 {
  78                         val->vector[0] = dmg_origin[0];
  79                         val->vector[1] = dmg_origin[1];
  80                         val->vector[2] = dmg_origin[2];
  81                 }
  82                 CSQC_END
  83         }
  84 }
  85
  86 void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
  87 {
  88         prvm_eval_t *val;
  89         if(!cl.csqc_loaded)
  90                 return;
  91         CSQC_BEGIN
  92         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.servertime)))
  93                 val->_float = newtime;
  94         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverprevtime)))
  95                 val->_float = oldtime;
  96         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.serverdeltatime)))
  97                 val->_float = newtime - oldtime;
  98         CSQC_END
  99 }
 100
 101 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
 102 static void CSQC_SetGlobals (void)
 103 {
 104         prvm_eval_t *val;
 105         CSQC_BEGIN
 106                 prog->globals.client->time = cl.time;
 107                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
 108                 prog->globals.client->servercommandframe = cls.servermovesequence;
 109                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
 110                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
 111                 VectorCopy(cl.viewangles, cl.csqc_angles);
 112                 // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
 113                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
 114                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
 115                 //VectorCopy(cl.movement_origin, cl.csqc_origin);
 116                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, cl.csqc_origin);
 117
 118                 // LordHavoc: Spike says not to do this, but without pmove_org the
 119                 // CSQC is useless as it can't alter the view origin without
 120                 // completely replacing it
 121                 VectorCopy(cl.csqc_origin, prog->globals.client->pmove_org);
 122                 VectorCopy(cl.movement_velocity, prog->globals.client->pmove_vel);
 123
 124                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
 125                         VectorCopy(cl.viewangles, val->vector);
 126                 prog->globals.client->maxclients = cl.maxclients;
 127         CSQC_END
 128 }
 129
 130 void CSQC_Predraw (prvm_edict_t *ed)
 131 {
 132         int b;
 133         if(!ed->fields.client->predraw)
 134                 return;
 135         b = prog->globals.client->self;
 136         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 137         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
 138         prog->globals.client->self = b;
 139 }
 140
 141 void CSQC_Think (prvm_edict_t *ed)
 142 {
 143         int b;
 144         if(ed->fields.client->think)
 145         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
 146         {
 147                 ed->fields.client->nextthink = 0;
 148                 b = prog->globals.client->self;
 149                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
 150                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
 151                 prog->globals.client->self = b;
 152         }
 153 }
 154
 155 extern cvar_t cl_noplayershadow;
 156 extern cvar_t r_equalize_entities_fullbright;
 157 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
 158 {
 159         int renderflags;
 160         int c;
 161         float scale;
 162         prvm_eval_t *val;
 163         entity_render_t *entrender;
 164         dp_model_t *model;
 165         matrix4x4_t tagmatrix, matrix2;
 166
 167         model = CL_GetModelFromEdict(ed);
 168         if (!model)
 169                 return false;
 170
 171         entrender = CL_NewTempEntity(0);
 172         if (!entrender)
 173                 return false;
 174
 175         entrender->model = model;
 176         entrender->skinnum = (int)ed->fields.client->skin;
 177         entrender->effects |= entrender->model->effects;
 178         scale = 1;
 179         renderflags = 0;
 180         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
 181         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           entrender->alpha = val->_float;
 182         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           entrender->scale = scale = val->_float;
 183         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, entrender->colormod);
 184         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.glowmod)) && VectorLength2(val->vector))  VectorCopy(val->vector, entrender->glowmod);
 185         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) entrender->effects |= (int)val->_float;
 186         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
 187         {
 188                 int tagentity;
 189                 int tagindex = 0;
 190                 tagentity = val->edict;
 191                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
 192                         tagindex = (int)val->_float;
 193                 CL_GetTagMatrix (&tagmatrix, PRVM_PROG_TO_EDICT(tagentity), tagindex);
 194         }
 195         else
 196                 Matrix4x4_CreateIdentity(&tagmatrix);
 197         if (!VectorLength2(entrender->colormod))
 198                 VectorSet(entrender->colormod, 1, 1, 1);
 199         if (!VectorLength2(entrender->glowmod))
 200                 VectorSet(entrender->glowmod, 1, 1, 1);
 201
 202         if (renderflags & RF_USEAXIS)
 203         {
 204                 vec3_t left;
 205                 VectorNegate(prog->globals.client->v_right, left);
 206                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
 207                 Matrix4x4_Scale(&matrix2, scale, 1);
 208         }
 209         else
 210         {
 211                 vec3_t angles;
 212                 VectorCopy(ed->fields.client->angles, angles);
 213                 // if model is alias, reverse pitch direction
 214                 if (entrender->model->type == mod_alias)
 215                         angles[0] = -angles[0];
 216
 217                 // set up the render matrix
 218                 Matrix4x4_CreateFromQuakeEntity(&matrix2, ed->fields.client->origin[0], ed->fields.client->origin[1], ed->fields.client->origin[2], angles[0], angles[1], angles[2], scale);
 219         }
 220
 221         // set up the animation data
 222         CL_LoadFrameGroupBlend(ed, entrender);
 223
 224         // concat the matrices to make the entity relative to its tag
 225         Matrix4x4_Concat(&entrender->matrix, &tagmatrix, &matrix2);
 226
 227         // transparent offset
 228         if ((renderflags & RF_USETRANSPARENTOFFSET) && (val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.transparent_offset)))
 229                 entrender->transparent_offset = val->_float;
 230
 231         if(renderflags)
 232         {
 233                 if(renderflags & RF_VIEWMODEL)  entrender->flags |= RENDER_VIEWMODEL | RENDER_NODEPTHTEST;
 234                 if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
 235                 if(renderflags & RF_NOCULL)             entrender->flags |= RENDER_NOCULL;
 236                 if(renderflags & RF_DEPTHHACK)  entrender->flags |= RENDER_NODEPTHTEST;
 237                 if(renderflags & RF_ADDITIVE)           entrender->flags |= RENDER_ADDITIVE;
 238
 239         }
 240
 241         c = (int)ed->fields.client->colormap;
 242         if (c <= 0)
 243                 CL_SetEntityColormapColors(entrender, -1);
 244         else if (c <= cl.maxclients && cl.scores != NULL)
 245                 CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
 246         else
 247                 CL_SetEntityColormapColors(entrender, c);
 248
 249         entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
 250         // either fullbright or lit
 251         if(!r_fullbright.integer)
 252         {
 253                 if (!(entrender->effects & EF_FULLBRIGHT))
 254                         entrender->flags |= RENDER_LIGHT;
 255                 else if(r_equalize_entities_fullbright.integer)
 256                         entrender->flags |= RENDER_LIGHT | RENDER_EQUALIZE;
 257         }
 258         // hide player shadow during intermission or nehahra movie
 259         if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
 260          &&  (entrender->alpha >= 1)
 261          && !(entrender->flags & RENDER_VIEWMODEL)
 262          && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 263                 entrender->flags |= RENDER_SHADOW;
 264         if (entrender->flags & RENDER_VIEWMODEL)
 265                 entrender->flags |= RENDER_NOSELFSHADOW;
 266         if (entrender->effects & EF_NOSELFSHADOW)
 267                 entrender->flags |= RENDER_NOSELFSHADOW;
 268         if (entrender->effects & EF_NODEPTHTEST)
 269                 entrender->flags |= RENDER_NODEPTHTEST;
 270         if (entrender->effects & EF_ADDITIVE)
 271                 entrender->flags |= RENDER_ADDITIVE;
 272         if (entrender->effects & EF_DOUBLESIDED)
 273                 entrender->flags |= RENDER_DOUBLESIDED;
 274
 275         // make the other useful stuff
 276         CL_UpdateRenderEntity(entrender);
 277
 278         return true;
 279 }
 280
 281 qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
 282 {
 283         qboolean r;
 284
 285         if(!cl.csqc_loaded)
 286                 return false;
 287
 288         CSQC_BEGIN
 289                 if (!prog->funcoffsets.CSQC_InputEvent)
 290                         r = false;
 291                 else
 292                 {
 293                         prog->globals.client->time = cl.time;
 294                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 295                         PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
 296                         PRVM_G_FLOAT(OFS_PARM1) = key;
 297                         PRVM_G_FLOAT(OFS_PARM2) = ascii;
 298                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
 299                         r = CSQC_RETURNVAL != 0;
 300                 }
 301         CSQC_END
 302         return r;
 303 }
 304
 305 qboolean CL_VM_UpdateView (void)
 306 {
 307         vec3_t emptyvector;
 308         emptyvector[0] = 0;
 309         emptyvector[1] = 0;
 310         emptyvector[2] = 0;
 311 //      vec3_t oldangles;
 312         if(!cl.csqc_loaded)
 313                 return false;
 314         CSQC_BEGIN
 315                 //VectorCopy(cl.viewangles, oldangles);
 316                 prog->globals.client->time = cl.time;
 317                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 318                 CSQC_SetGlobals();
 319                 // clear renderable entity and light lists to prevent crashes if the
 320                 // CSQC_UpdateView function does not call R_ClearScene as it should
 321                 r_refdef.scene.numentities = 0;
 322                 r_refdef.scene.numlights = 0;
 323                 // pass in width and height as parameters (EXT_CSQC_1)
 324                 PRVM_G_FLOAT(OFS_PARM0) = vid.width;
 325                 PRVM_G_FLOAT(OFS_PARM1) = vid.height;
 326                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
 327                 //VectorCopy(oldangles, cl.viewangles);
 328                 // Dresk : Reset Dmg Globals Here
 329                 CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
 330         CSQC_END
 331         return true;
 332 }
 333
 334 extern sizebuf_t vm_tempstringsbuf;
 335 qboolean CL_VM_ConsoleCommand (const char *cmd)
 336 {
 337         int restorevm_tempstringsbuf_cursize;
 338         qboolean r = false;
 339         if(!cl.csqc_loaded)
 340                 return false;
 341         CSQC_BEGIN
 342         if (prog->funcoffsets.CSQC_ConsoleCommand)
 343         {
 344                 prog->globals.client->time = cl.time;
 345                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 346                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 347                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
 348                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
 349                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 350                 r = CSQC_RETURNVAL != 0;
 351         }
 352         CSQC_END
 353         return r;
 354 }
 355
 356 qboolean CL_VM_Parse_TempEntity (void)
 357 {
 358         int                     t;
 359         qboolean        r = false;
 360         if(!cl.csqc_loaded)
 361                 return false;
 362         CSQC_BEGIN
 363         if(prog->funcoffsets.CSQC_Parse_TempEntity)
 364         {
 365                 t = msg_readcount;
 366                 prog->globals.client->time = cl.time;
 367                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 368                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
 369                 r = CSQC_RETURNVAL != 0;
 370                 if(!r)
 371                 {
 372                         msg_readcount = t;
 373                         msg_badread = false;
 374                 }
 375         }
 376         CSQC_END
 377         return r;
 378 }
 379
 380 void CL_VM_Parse_StuffCmd (const char *msg)
 381 {
 382         int restorevm_tempstringsbuf_cursize;
 383         if(msg[0] == 'c')
 384         if(msg[1] == 's')
 385         if(msg[2] == 'q')
 386         if(msg[3] == 'c')
 387         {
 388                 // if this is setting a csqc variable, deprotect csqc_progcrc
 389                 // temporarily so that it can be set by the cvar command,
 390                 // and then reprotect it afterwards
 391                 int crcflags = csqc_progcrc.flags;
 392                 int sizeflags = csqc_progcrc.flags;
 393                 csqc_progcrc.flags &= ~CVAR_READONLY;
 394                 csqc_progsize.flags &= ~CVAR_READONLY;
 395                 Cmd_ExecuteString (msg, src_command);
 396                 csqc_progcrc.flags = crcflags;
 397                 csqc_progsize.flags = sizeflags;
 398                 return;
 399         }
 400
 401         if(cls.demoplayback)
 402         if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
 403         {
 404                 // special handling for map download commands
 405                 // run these commands IMMEDIATELY, instead of waiting for a client frame
 406                 // that way, there is no black screen when playing back demos
 407                 // I know this is a really ugly hack, but I can't think of any better way
 408                 // FIXME find the actual CAUSE of this, and make demo playback WAIT
 409                 // until all maps are loaded, then remove this hack
 410
 411                 char buf[MAX_INPUTLINE];
 412                 const char *p, *q;
 413                 size_t l;
 414
 415                 p = msg;
 416
 417                 for(;;)
 418                 {
 419                         q = strchr(p, '\n');
 420                         if(q)
 421                                 l = q - p;
 422                         else
 423                                 l = strlen(p);
 424                         if(l > sizeof(buf) - 1)
 425                                 l = sizeof(buf) - 1;
 426                         strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!
 427
 428                         Cmd_ExecuteString(buf, src_command);
 429
 430                         p += l;
 431                         if(*p == '\n')
 432                                 ++p; // skip the newline and continue
 433                         else
 434                                 break; // end of string or overflow
 435                 }
 436                 Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
 437                 return;
 438         }
 439
 440         if(!cl.csqc_loaded)
 441         {
 442                 Cbuf_AddText(msg);
 443                 return;
 444         }
 445         CSQC_BEGIN
 446         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
 447         {
 448                 prog->globals.client->time = cl.time;
 449                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 450                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 451                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 452                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
 453                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 454         }
 455         else
 456                 Cbuf_AddText(msg);
 457         CSQC_END
 458 }
 459
 460 static void CL_VM_Parse_Print (const char *msg)
 461 {
 462         int restorevm_tempstringsbuf_cursize;
 463         prog->globals.client->time = cl.time;
 464         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 465         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 466         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 467         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
 468         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 469 }
 470
 471 void CSQC_AddPrintText (const char *msg)
 472 {
 473         size_t i;
 474         if(!cl.csqc_loaded)
 475         {
 476                 Con_Print(msg);
 477                 return;
 478         }
 479         CSQC_BEGIN
 480         if(prog->funcoffsets.CSQC_Parse_Print)
 481         {
 482                 // FIXME: is this bugged?
 483                 i = strlen(msg)-1;
 484                 if(msg[i] != '\n' && msg[i] != '\r')
 485                 {
 486                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
 487                         {
 488                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 489                                 cl.csqc_printtextbuf[0] = 0;
 490                         }
 491                         else
 492                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 493                         return;
 494                 }
 495                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
 496                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
 497                 cl.csqc_printtextbuf[0] = 0;
 498         }
 499         else
 500                 Con_Print(msg);
 501         CSQC_END
 502 }
 503
 504 void CL_VM_Parse_CenterPrint (const char *msg)
 505 {
 506         int restorevm_tempstringsbuf_cursize;
 507         if(!cl.csqc_loaded)
 508         {
 509                 SCR_CenterPrint(msg);
 510                 return;
 511         }
 512         CSQC_BEGIN
 513         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
 514         {
 515                 prog->globals.client->time = cl.time;
 516                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 517                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
 518                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
 519                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
 520                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 521         }
 522         else
 523                 SCR_CenterPrint(msg);
 524         CSQC_END
 525 }
 526
 527 void CL_VM_UpdateIntermissionState (int intermission)
 528 {
 529         prvm_eval_t *val;
 530         if(cl.csqc_loaded)
 531         {
 532                 CSQC_BEGIN
 533                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.intermission);
 534                 if(val)
 535                         val->_float = intermission;
 536                 CSQC_END
 537         }
 538 }
 539 void CL_VM_UpdateShowingScoresState (int showingscores)
 540 {
 541         prvm_eval_t *val;
 542         if(cl.csqc_loaded)
 543         {
 544                 CSQC_BEGIN
 545                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.sb_showscores);
 546                 if(val)
 547                         val->_float = showingscores;
 548                 CSQC_END
 549         }
 550 }
 551 qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
 552 {
 553         qboolean r = false;
 554         if(cl.csqc_loaded)
 555         {
 556                 CSQC_BEGIN
 557                 if(prog->funcoffsets.CSQC_Event_Sound)
 558                 {
 559                         prog->globals.client->time = cl.time;
 560                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 561                         PRVM_G_FLOAT(OFS_PARM0) = ent;
 562                         PRVM_G_FLOAT(OFS_PARM1) = channel;
 563                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
 564                         PRVM_G_FLOAT(OFS_PARM3) = volume;
 565                         PRVM_G_FLOAT(OFS_PARM4) = attenuation;
 566                         VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
 567                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event_Sound, "QC function CSQC_Event_Sound is missing");
 568                         r = CSQC_RETURNVAL != 0;
 569                 }
 570                 CSQC_END
 571         }
 572
 573         return r;
 574 }
 575 void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
 576 {
 577         // Avoid global names for clean(er) coding
 578         int localcoop;
 579         int localdeathmatch;
 580
 581         prvm_eval_t *val;
 582         if(cl.csqc_loaded)
 583         {
 584                 if(gametype == GAME_COOP)
 585                 {
 586                         localcoop = 1;
 587                         localdeathmatch = 0;
 588                 }
 589                 else
 590                 if(gametype == GAME_DEATHMATCH)
 591                 {
 592                         localcoop = 0;
 593                         localdeathmatch = 1;
 594                 }
 595                 else
 596                 {
 597                         // How did the ServerInfo send an unknown gametype?
 598                         // Better just assign the globals as 0...
 599                         localcoop = 0;
 600                         localdeathmatch = 0;
 601                 }
 602                 CSQC_BEGIN
 603                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.coop);
 604                 if(val)
 605                         val->_float = localcoop;
 606                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.deathmatch);
 607                 if(val)
 608                         val->_float = localdeathmatch;
 609                 CSQC_END
 610         }
 611 }
 612 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
 613 {
 614         float r = 0;
 615         if(!cl.csqc_loaded)
 616                 return 0;
 617         CSQC_BEGIN
 618         if(prog->funcoffsets.CSQC_Event)
 619         {
 620                 prog->globals.client->time = cl.time;
 621                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[cl.playerentity];
 622                 PRVM_G_FLOAT(OFS_PARM0) = event;
 623                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
 624                 r = CSQC_RETURNVAL;
 625         }
 626         CSQC_END
 627         return r;
 628 }
 629
 630 void CSQC_ReadEntities (void)
 631 {
 632         unsigned short entnum, oldself, realentnum;
 633         if(!cl.csqc_loaded)
 634         {
 635                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
 636                 return;
 637         }
 638
 639         CSQC_BEGIN
 640                 prog->globals.client->time = cl.time;
 641                 oldself = prog->globals.client->self;
 642                 while(1)
 643                 {
 644                         entnum = MSG_ReadShort();
 645                         if(!entnum || msg_badread)
 646                                 return;
 647                         realentnum = entnum & 0x7FFF;
 648                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
 649                         if(entnum & 0x8000)
 650                         {
 651                                 if(prog->globals.client->self)
 652                                 {
 653                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
 654                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
 655                                 }
 656                                 else
 657                                 {
 658                                         // LordHavoc: removing an entity that is already gone on
 659                                         // the csqc side is possible for legitimate reasons (such
 660                                         // as a repeat of the remove message), so no warning is
 661                                         // needed
 662                                         //Con_Printf("Bad csqc_server2csqcentitynumber map\n"); //[515]: never happens ?
 663                                 }
 664                         }
 665                         else
 666                         {
 667                                 if(!prog->globals.client->self)
 668                                 {
 669                                         if(!prog->funcoffsets.CSQC_Ent_Spawn)
 670                                         {
 671                                                 prvm_edict_t    *ed;
 672                                                 ed = PRVM_ED_Alloc();
 673                                                 ed->fields.client->entnum = realentnum;
 674                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
 675                                         }
 676                                         else
 677                                         {
 678                                                 // entity( float entnum ) CSQC_Ent_Spawn;
 679                                                 // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
 680                                                 PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
 681                                                 // make sure no one gets wrong ideas
 682                                                 prog->globals.client->self = 0;
 683                                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Spawn, "QC function CSQC_Ent_Spawn is missing");
 684                                                 prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
 685                                         }
 686                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
 687                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 688                                 }
 689                                 else {
 690                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
 691                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
 692                                 }
 693                         }
 694                 }
 695                 prog->globals.client->self = oldself;
 696         CSQC_END
 697 }
 698
 699 void CL_VM_CB_BeginIncreaseEdicts(void)
 700 {
 701         // links don't survive the transition, so unlink everything
 702         World_UnlinkAll(&cl.world);
 703 }
 704
 705 void CL_VM_CB_EndIncreaseEdicts(void)
 706 {
 707         int i;
 708         prvm_edict_t *ent;
 709
 710         // link every entity except world
 711         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
 712                 if (!ent->priv.server->free)
 713                         CL_LinkEdict(ent);
 714 }
 715
 716 void CL_VM_CB_InitEdict(prvm_edict_t *e)
 717 {
 718         e->priv.server->move = false; // don't move on first frame
 719 }
 720
 721 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
 722 {
 723         World_UnlinkEdict(ed);
 724         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
 725         World_Physics_RemoveFromEntity(&cl.world, ed);
 726         World_Physics_RemoveJointFromEntity(&cl.world, ed);
 727 }
 728
 729 void CL_VM_CB_CountEdicts(void)
 730 {
 731         int             i;
 732         prvm_edict_t    *ent;
 733         int             active = 0, models = 0, solid = 0;
 734
 735         for (i=0 ; i<prog->num_edicts ; i++)
 736         {
 737                 ent = PRVM_EDICT_NUM(i);
 738                 if (ent->priv.server->free)
 739                         continue;
 740                 active++;
 741                 if (ent->fields.client->solid)
 742                         solid++;
 743                 if (ent->fields.client->model)
 744                         models++;
 745         }
 746
 747         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 748         Con_Printf("active    :%3i\n", active);
 749         Con_Printf("view      :%3i\n", models);
 750         Con_Printf("touch     :%3i\n", solid);
 751 }
 752
 753 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
 754 {
 755         return true;
 756 }
 757
 758 void Cmd_ClearCsqcFuncs (void);
 759
 760 // returns true if the packet is valid, false if end of file is reached
 761 // used for dumping the CSQC download into demo files
 762 qboolean MakeDownloadPacket(const char *filename, unsigned char *data, unsigned long len, int crc, int cnt, sizebuf_t *buf, int protocol)
 763 {
 764         int packetsize = buf->maxsize - 7; // byte short long
 765         int npackets = (len + packetsize - 1) / (packetsize);
 766
 767         if(protocol == PROTOCOL_QUAKEWORLD)
 768                 return false; // CSQC can't run in QW anyway
 769
 770         SZ_Clear(buf);
 771         if(cnt == 0)
 772         {
 773                 MSG_WriteByte(buf, svc_stufftext);
 774                 MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", len, filename));
 775                 return true;
 776         }
 777         else if(cnt >= 1 && cnt <= npackets)
 778         {
 779                 unsigned long thispacketoffset = (cnt - 1) * packetsize;
 780                 int thispacketsize = len - thispacketoffset;
 781                 if(thispacketsize > packetsize)
 782                         thispacketsize = packetsize;
 783
 784                 MSG_WriteByte(buf, svc_downloaddata);
 785                 MSG_WriteLong(buf, thispacketoffset);
 786                 MSG_WriteShort(buf, thispacketsize);
 787                 SZ_Write(buf, data + thispacketoffset, thispacketsize);
 788
 789                 return true;
 790         }
 791         else if(cnt == npackets + 1)
 792         {
 793                 MSG_WriteByte(buf, svc_stufftext);
 794                 MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", len, crc));
 795                 return true;
 796         }
 797         return false;
 798 }
 799
 800 void CL_VM_Init (void)
 801 {
 802         const char* csprogsfn;
 803         unsigned char *csprogsdata;
 804         fs_offset_t csprogsdatasize;
 805         int csprogsdatacrc, requiredcrc;
 806         int requiredsize;
 807         prvm_eval_t *val;
 808
 809         // reset csqc_progcrc after reading it, so that changing servers doesn't
 810         // expect csqc on the next server
 811         requiredcrc = csqc_progcrc.integer;
 812         requiredsize = csqc_progsize.integer;
 813         Cvar_SetValueQuick(&csqc_progcrc, -1);
 814         Cvar_SetValueQuick(&csqc_progsize, -1);
 815
 816         // if the server is not requesting a csprogs, then we're done here
 817         if (requiredcrc < 0)
 818                 return;
 819
 820         // see if the requested csprogs.dat file matches the requested crc
 821         csprogsdatacrc = -1;
 822         csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
 823         csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 824         if (!csprogsdata)
 825         {
 826                 csprogsfn = csqc_progname.string;
 827                 csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
 828         }
 829         if (csprogsdata)
 830         {
 831                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
 832                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
 833                 {
 834                         if (cls.demoplayback)
 835                         {
 836                                 Con_Printf("^1Warning: Your %s is not the same version as the demo was recorded with (CRC/size are %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
 837                                 // Mem_Free(csprogsdata);
 838                                 // return;
 839                                 // We WANT to continue here, and play the demo with different csprogs!
 840                                 // After all, this is just a warning. Sure things may go wrong from here.
 841                         }
 842                         else
 843                         {
 844                                 Mem_Free(csprogsdata);
 845                                 Con_Printf("^1Your %s is not the same version as the server (CRC is %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
 846                                 CL_Disconnect();
 847                                 return;
 848                         }
 849                 }
 850         }
 851         else
 852         {
 853                 if (requiredcrc >= 0)
 854                 {
 855                         if (cls.demoplayback)
 856                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 857                         else
 858                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
 859                         CL_Disconnect();
 860                 }
 861                 return;
 862         }
 863
 864         PRVM_Begin;
 865         PRVM_InitProg(PRVM_CLIENTPROG);
 866
 867         // allocate the mempools
 868         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
 869         prog->headercrc = CL_PROGHEADER_CRC;
 870         prog->edictprivate_size = 0; // no private struct used
 871         prog->name = CL_NAME;
 872         prog->num_edicts = 1;
 873         prog->max_edicts = 512;
 874         prog->limit_edicts = CL_MAX_EDICTS;
 875         prog->reserved_edicts = 0;
 876         prog->edictprivate_size = sizeof(edict_engineprivate_t);
 877         // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
 878         prog->extensionstring = vm_sv_extensions;
 879         prog->builtins = vm_cl_builtins;
 880         prog->numbuiltins = vm_cl_numbuiltins;
 881         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
 882         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
 883         prog->init_edict = CL_VM_CB_InitEdict;
 884         prog->free_edict = CL_VM_CB_FreeEdict;
 885         prog->count_edicts = CL_VM_CB_CountEdicts;
 886         prog->load_edict = CL_VM_CB_LoadEdict;
 887         prog->init_cmd = VM_CL_Cmd_Init;
 888         prog->reset_cmd = VM_CL_Cmd_Reset;
 889         prog->error_cmd = CL_VM_Error;
 890         prog->ExecuteProgram = CLVM_ExecuteProgram;
 891
 892         PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
 893
 894         if (!prog->loaded)
 895         {
 896                 CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
 897                 if(!sv.active)
 898                         CL_Disconnect();
 899                 Mem_Free(csprogsdata);
 900                 return;
 901         }
 902
 903         Con_Printf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);
 904
 905         if(cls.demorecording)
 906         {
 907                 if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
 908                 {
 909                         int i;
 910                         char buf[NET_MAXMESSAGE];
 911                         sizebuf_t sb;
 912                         unsigned char *demobuf; fs_offset_t demofilesize;
 913
 914                         sb.data = (unsigned char *) buf;
 915                         sb.maxsize = sizeof(buf);
 916                         i = 0;
 917
 918                         CL_CutDemo(&demobuf, &demofilesize);
 919                         while(MakeDownloadPacket(csqc_progname.string, csprogsdata, csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
 920                                 CL_WriteDemoMessage(&sb);
 921                         CL_PasteDemo(&demobuf, &demofilesize);
 922
 923                         cls.demo_lastcsprogssize = csprogsdatasize;
 924                         cls.demo_lastcsprogscrc = csprogsdatacrc;
 925                 }
 926         }
 927         Mem_Free(csprogsdata);
 928
 929         // check if OP_STATE animation is possible in this dat file
 930         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
 931                 prog->flag |= PRVM_OP_STATE;
 932
 933         // set time
 934         prog->globals.client->time = cl.time;
 935         prog->globals.client->self = 0;
 936
 937         prog->globals.client->mapname = cl.worldmodel ? PRVM_SetEngineString(cl.worldmodel->name) : PRVM_SetEngineString("");
 938         prog->globals.client->player_localentnum = cl.playerentity;
 939
 940         // set map description (use world entity 0)
 941         val = PRVM_EDICTFIELDVALUE(prog->edicts, prog->fieldoffsets.message);
 942         if(val)
 943                 val->string = PRVM_SetEngineString(cl.levelname);
 944         VectorCopy(cl.world.mins, prog->edicts->fields.client->mins);
 945         VectorCopy(cl.world.maxs, prog->edicts->fields.client->maxs);
 946
 947         // call the prog init
 948         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
 949
 950         PRVM_End;
 951         cl.csqc_loaded = true;
 952
 953         cl.csqc_vidvars.drawcrosshair = false;
 954         cl.csqc_vidvars.drawenginesbar = false;
 955
 956         // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
 957         CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
 958 }
 959
 960 void CL_VM_ShutDown (void)
 961 {
 962         Cmd_ClearCsqcFuncs();
 963         //Cvar_SetValueQuick(&csqc_progcrc, -1);
 964         //Cvar_SetValueQuick(&csqc_progsize, -1);
 965         if(!cl.csqc_loaded)
 966                 return;
 967         CSQC_BEGIN
 968                 prog->globals.client->time = cl.time;
 969                 prog->globals.client->self = 0;
 970                 if (prog->funcoffsets.CSQC_Shutdown)
 971                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
 972                 PRVM_ResetProg();
 973         CSQC_END
 974         Con_Print("CSQC ^1unloaded\n");
 975         cl.csqc_loaded = false;
 976 }
 977
 978 qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
 979 {
 980         prvm_edict_t *ed;
 981         dp_model_t *mod;
 982         matrix4x4_t matrix;
 983         qboolean r = 0;
 984
 985         CSQC_BEGIN;
 986
 987         // FIXME consider attachments here!
 988
 989         ed = PRVM_EDICT_NUM(entnum - MAX_EDICTS);
 990
 991         if(!ed->priv.required->free)
 992         {
 993                 mod = CL_GetModelFromEdict(ed);
 994                 VectorCopy(ed->fields.client->origin, out);
 995                 if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
 996                         Matrix4x4_OriginFromMatrix(&matrix, out);
 997                 if (mod && mod->soundfromcenter)
 998                         VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
 999                 r = 1;
1000         }
1001
1002         CSQC_END;
1003
1004         return r;
1005 }
1006
1007 void CL_LoadFrameGroupBlend(prvm_edict_t *ed, entity_render_t *entrender)
1008 {
1009         prvm_eval_t *val;
1010         // self.frame is the interpolation target (new frame)
1011         // self.frame1time is the animation base time for the interpolation target
1012         // self.frame2 is the interpolation start (previous frame)
1013         // self.frame2time is the animation base time for the interpolation start
1014         // self.lerpfrac is the interpolation strength for self.frame
1015         // 3+ are for additional blends (the main use for this feature is lerping
1016         // pitch angle on a player model where the animator set up 5 sets of
1017         // animations and the csqc simply lerps between sets)
1018         entrender->framegroupblend[0].frame = entrender->framegroupblend[1].frame = (int) ed->fields.client->frame;
1019         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) entrender->framegroupblend[1].frame = (int) val->_float;
1020         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3))) entrender->framegroupblend[2].frame = (int) val->_float;
1021         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4))) entrender->framegroupblend[3].frame = (int) val->_float;
1022         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) entrender->framegroupblend[0].start = val->_float;
1023         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) entrender->framegroupblend[1].start = val->_float;
1024         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3time))) entrender->framegroupblend[2].start = val->_float;
1025         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4time))) entrender->framegroupblend[3].start = val->_float;
1026         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) entrender->framegroupblend[0].lerp = val->_float;
1027         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac3))) entrender->framegroupblend[2].lerp = val->_float;
1028         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac4))) entrender->framegroupblend[3].lerp = val->_float;
1029         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.shadertime))) entrender->shadertime = val->_float;
1030         // assume that the (missing) lerpfrac2 is whatever remains after lerpfrac+lerpfrac3+lerpfrac4 are summed
1031         entrender->framegroupblend[1].lerp = 1 - entrender->framegroupblend[0].lerp - entrender->framegroupblend[2].lerp - entrender->framegroupblend[3].lerp;
1032 }
1033
1034 int CL_BlendTagMatrix(entity_render_t *entrender, int tagindex, matrix4x4_t *blendmatrix)
1035 {
1036         int j, l, k;
1037         int ret;
1038         float d;
1039         dp_model_t *model = entrender->model;
1040         // blend the matrices
1041         memset(blendmatrix, 0, sizeof(*blendmatrix));
1042         for (j = 0;j < MAX_FRAMEBLENDS && entrender->frameblend[j].lerp > 0;j++)
1043         {
1044                 matrix4x4_t tagmatrix;
1045                 ret = Mod_Alias_GetTagMatrix(model, entrender->frameblend[j].subframe, tagindex, &tagmatrix);
1046                 if(ret)
1047                         return ret;
1048                 d = entrender->frameblend[j].lerp;
1049                 for (l = 0;l < 4;l++)
1050                         for (k = 0;k < 4;k++)
1051                                 blendmatrix->m[l][k] += d * tagmatrix.m[l][k];
1052         }
1053         return 0;
1054 }