model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28
  29 cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  30
  31 dp_model_t *loadmodel;
  32
  33 static mempool_t *mod_mempool;
  34 static memexpandablearray_t models;
  35
  36 static mempool_t* q3shaders_mem;
  37 typedef struct q3shader_hash_entry_s
  38 {
  39   q3shaderinfo_t shader;
  40   struct q3shader_hash_entry_s* chain;
  41 } q3shader_hash_entry_t;
  42 #define Q3SHADER_HASH_SIZE  1021
  43 typedef struct q3shader_data_s
  44 {
  45   memexpandablearray_t hash_entries;
  46   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  47   memexpandablearray_t char_ptrs;
  48 } q3shader_data_t;
  49 static q3shader_data_t* q3shader_data;
  50
  51 static void mod_start(void)
  52 {
  53         int i, count;
  54         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  55         dp_model_t *mod;
  56
  57         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  58         count = 0;
  59         for (i = 0;i < nummodels;i++)
  60                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  61                         if (mod->used)
  62                                 ++count;
  63         for (i = 0;i < nummodels;i++)
  64                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  65                         if (mod->used)
  66                         {
  67                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  68                                 Mod_LoadModel(mod, true, false);
  69                                 SCR_PopLoadingScreen(false);
  70                         }
  71         SCR_PopLoadingScreen(false);
  72 }
  73
  74 static void mod_shutdown(void)
  75 {
  76         int i;
  77         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  78         dp_model_t *mod;
  79
  80         for (i = 0;i < nummodels;i++)
  81                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  82                         Mod_UnloadModel(mod);
  83
  84         Mod_FreeQ3Shaders();
  85 }
  86
  87 static void mod_newmap(void)
  88 {
  89         msurface_t *surface;
  90         int i, j, k, surfacenum, ssize, tsize;
  91         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  92         dp_model_t *mod;
  93
  94         R_SkinFrame_PrepareForPurge();
  95         for (i = 0;i < nummodels;i++)
  96         {
  97                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_textures)
  98                 {
  99                         for (j = 0;j < mod->num_textures;j++)
 100                         {
 101                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 102                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 103                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 104                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
 105                         }
 106                 }
 107         }
 108         R_SkinFrame_Purge();
 109
 110         if (!cl_stainmaps_clearonload.integer)
 111                 return;
 112
 113         for (i = 0;i < nummodels;i++)
 114         {
 115                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 116                 {
 117                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 118                         {
 119                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 120                                 {
 121                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 122                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 123                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 124                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 125                                 }
 126                         }
 127                 }
 128         }
 129 }
 130
 131 /*
 132 ===============
 133 Mod_Init
 134 ===============
 135 */
 136 static void Mod_Print(void);
 137 static void Mod_Precache (void);
 138 static void Mod_Decompile_f(void);
 139 static void Mod_BuildVBOs(void);
 140 void Mod_Init (void)
 141 {
 142         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 143         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 144
 145         Mod_BrushInit();
 146         Mod_AliasInit();
 147         Mod_SpriteInit();
 148
 149         Cvar_RegisterVariable(&r_mipskins);
 150         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 151         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 152         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 153 }
 154
 155 void Mod_RenderInit(void)
 156 {
 157         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap);
 158 }
 159
 160 void Mod_UnloadModel (dp_model_t *mod)
 161 {
 162         char name[MAX_QPATH];
 163         qboolean used;
 164         dp_model_t *parentmodel;
 165
 166         if (developer_loading.integer)
 167                 Con_Printf("unloading model %s\n", mod->name);
 168
 169         strlcpy(name, mod->name, sizeof(name));
 170         parentmodel = mod->brush.parentmodel;
 171         used = mod->used;
 172         if (mod->surfmesh.ebo3i)
 173                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3i);
 174         if (mod->surfmesh.ebo3s)
 175                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3s);
 176         if (mod->surfmesh.vbo)
 177                 R_Mesh_DestroyBufferObject(mod->surfmesh.vbo);
 178         // free textures/memory attached to the model
 179         R_FreeTexturePool(&mod->texturepool);
 180         Mem_FreePool(&mod->mempool);
 181         // clear the struct to make it available
 182         memset(mod, 0, sizeof(dp_model_t));
 183         // restore the fields we want to preserve
 184         strlcpy(mod->name, name, sizeof(mod->name));
 185         mod->brush.parentmodel = parentmodel;
 186         mod->used = used;
 187         mod->loaded = false;
 188 }
 189
 190 void R_Model_Null_Draw(entity_render_t *ent)
 191 {
 192         return;
 193 }
 194
 195
 196 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, void *pass);
 197
 198 int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 199 {
 200         const char *bufptr;
 201         int start, len;
 202         float fps;
 203         unsigned int i;
 204         qboolean loop;
 205
 206         bufptr = buf;
 207         i = 0;
 208         for(;;)
 209         {
 210                 // an anim scene!
 211                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 212                         break;
 213                 if (!strcmp(com_token, "\n"))
 214                         continue; // empty line
 215                 start = atoi(com_token);
 216                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 217                         break;
 218                 if (!strcmp(com_token, "\n"))
 219                 {
 220                         Con_Printf("framegroups file: missing number of frames\n");
 221                         continue;
 222                 }
 223                 len = atoi(com_token);
 224                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 225                         break;
 226                 // we default to looping as it's usually wanted, so to NOT loop you append a 0
 227                 if (strcmp(com_token, "\n"))
 228                 {
 229                         fps = atof(com_token);
 230                         if (!COM_ParseToken_Simple(&bufptr, true, false))
 231                                 break;
 232                         if (strcmp(com_token, "\n"))
 233                                 loop = atoi(com_token) != 0;
 234                         else
 235                                 loop = true;
 236                 }
 237                 else
 238                 {
 239                         fps = 20;
 240                         loop = true;
 241                 }
 242
 243                 if(cb)
 244                         cb(i, start, len, fps, loop, pass);
 245                 ++i;
 246         }
 247
 248         return i;
 249 }
 250
 251 void Mod_FrameGroupify_ParseGroups_Count (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 252 {
 253         unsigned int *cnt = (unsigned int *) pass;
 254         ++*cnt;
 255 }
 256
 257 void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 258 {
 259         dp_model_t *mod = (dp_model_t *) pass;
 260         animscene_t *anim = &mod->animscenes[i];
 261         dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d", i);
 262         anim->firstframe = bound(0, start, mod->num_poses - 1);
 263         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 264         anim->framerate = max(1, fps);
 265         anim->loop = !!loop;
 266         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 267 }
 268
 269 void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 270 {
 271         unsigned int cnt;
 272
 273         // 0. count
 274         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 275         if(!cnt)
 276         {
 277                 Con_Printf("no scene found in framegroups file, aborting\n");
 278                 return;
 279         }
 280         mod->numframes = cnt;
 281
 282         // 1. reallocate
 283         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 284         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 285
 286         // 2. parse
 287         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 288 }
 289
 290 /*
 291 ==================
 292 Mod_LoadModel
 293
 294 Loads a model
 295 ==================
 296 */
 297 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 298 {
 299         int num;
 300         unsigned int crc;
 301         void *buf;
 302         fs_offset_t filesize;
 303
 304         mod->used = true;
 305
 306         if (mod->name[0] == '*') // submodel
 307                 return mod;
 308
 309         if (!strcmp(mod->name, "null"))
 310         {
 311                 if(mod->loaded)
 312                         return mod;
 313
 314                 if (mod->loaded || mod->mempool)
 315                         Mod_UnloadModel(mod);
 316
 317                 if (developer_loading.integer)
 318                         Con_Printf("loading model %s\n", mod->name);
 319
 320                 mod->used = true;
 321                 mod->crc = (unsigned int)-1;
 322                 mod->loaded = false;
 323
 324                 VectorClear(mod->normalmins);
 325                 VectorClear(mod->normalmaxs);
 326                 VectorClear(mod->yawmins);
 327                 VectorClear(mod->yawmaxs);
 328                 VectorClear(mod->rotatedmins);
 329                 VectorClear(mod->rotatedmaxs);
 330
 331                 mod->modeldatatypestring = "null";
 332                 mod->type = mod_null;
 333                 mod->Draw = R_Model_Null_Draw;
 334                 mod->numframes = 2;
 335                 mod->numskins = 1;
 336
 337                 // no fatal errors occurred, so this model is ready to use.
 338                 mod->loaded = true;
 339
 340                 return mod;
 341         }
 342
 343         crc = 0;
 344         buf = NULL;
 345
 346         // even if the model is loaded it still may need reloading...
 347
 348         // if it is not loaded or checkdisk is true we need to calculate the crc
 349         if (!mod->loaded || checkdisk)
 350         {
 351                 if (checkdisk && mod->loaded)
 352                         Con_DPrintf("checking model %s\n", mod->name);
 353                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 354                 if (buf)
 355                 {
 356                         crc = CRC_Block((unsigned char *)buf, filesize);
 357                         // we need to reload the model if the crc does not match
 358                         if (mod->crc != crc)
 359                                 mod->loaded = false;
 360                 }
 361         }
 362
 363         // if the model is already loaded and checks passed, just return
 364         if (mod->loaded)
 365         {
 366                 if (buf)
 367                         Mem_Free(buf);
 368                 return mod;
 369         }
 370
 371         if (developer_loading.integer)
 372                 Con_Printf("loading model %s\n", mod->name);
 373
 374         SCR_PushLoadingScreen(true, mod->name, 1);
 375
 376         // LordHavoc: unload the existing model in this slot (if there is one)
 377         if (mod->loaded || mod->mempool)
 378                 Mod_UnloadModel(mod);
 379
 380         // load the model
 381         mod->used = true;
 382         mod->crc = crc;
 383         // errors can prevent the corresponding mod->loaded = true;
 384         mod->loaded = false;
 385
 386         // default model radius and bounding box (mainly for missing models)
 387         mod->radius = 16;
 388         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 389         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 390         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 391         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 392         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 393         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 394
 395         if (!q3shaders_mem)
 396         {
 397                 // load q3 shaders for the first time, or after a level change
 398                 Mod_LoadQ3Shaders();
 399         }
 400
 401         if (buf)
 402         {
 403                 char *bufend = (char *)buf + filesize;
 404
 405                 // all models use memory, so allocate a memory pool
 406                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 407
 408                 num = LittleLong(*((int *)buf));
 409                 // call the apropriate loader
 410                 loadmodel = mod;
 411                      if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 412                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 413                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 414                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 415                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 416                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 417                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 418                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 419                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 420                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 421                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 422                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 423                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 424                 Mem_Free(buf);
 425
 426                 buf = FS_LoadFile (va("%s.framegroups", mod->name), tempmempool, false, &filesize);
 427                 if(buf)
 428                 {
 429                         Mod_FrameGroupify(mod, (const char *)buf);
 430                         Mem_Free(buf);
 431                 }
 432
 433                 Mod_BuildVBOs();
 434         }
 435         else if (crash)
 436         {
 437                 // LordHavoc: Sys_Error was *ANNOYING*
 438                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 439         }
 440
 441         // no fatal errors occurred, so this model is ready to use.
 442         mod->loaded = true;
 443
 444         SCR_PopLoadingScreen(false);
 445
 446         return mod;
 447 }
 448
 449 void Mod_ClearUsed(void)
 450 {
 451         int i;
 452         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 453         dp_model_t *mod;
 454         for (i = 0;i < nummodels;i++)
 455                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 456                         mod->used = false;
 457 }
 458
 459 void Mod_PurgeUnused(void)
 460 {
 461         int i;
 462         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 463         dp_model_t *mod;
 464         for (i = 0;i < nummodels;i++)
 465         {
 466                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 467                 {
 468                         Mod_UnloadModel(mod);
 469                         Mem_ExpandableArray_FreeRecord(&models, mod);
 470                 }
 471         }
 472 }
 473
 474 /*
 475 ==================
 476 Mod_FindName
 477
 478 ==================
 479 */
 480 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 481 {
 482         int i;
 483         int nummodels;
 484         dp_model_t *mod;
 485
 486         if (!parentname)
 487                 parentname = "";
 488
 489         // if we're not dedicatd, the renderer calls will crash without video
 490         Host_StartVideo();
 491
 492         nummodels = Mem_ExpandableArray_IndexRange(&models);
 493
 494         if (!name[0])
 495                 Host_Error ("Mod_ForName: NULL name");
 496
 497         // search the currently loaded models
 498         for (i = 0;i < nummodels;i++)
 499         {
 500                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !strcmp(mod->name, name) && ((!mod->brush.parentmodel && !parentname[0]) || (mod->brush.parentmodel && parentname[0] && !strcmp(mod->brush.parentmodel->name, parentname))))
 501                 {
 502                         mod->used = true;
 503                         return mod;
 504                 }
 505         }
 506
 507         // no match found, create a new one
 508         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 509         strlcpy(mod->name, name, sizeof(mod->name));
 510         if (parentname[0])
 511                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 512         else
 513                 mod->brush.parentmodel = NULL;
 514         mod->loaded = false;
 515         mod->used = true;
 516         return mod;
 517 }
 518
 519 /*
 520 ==================
 521 Mod_ForName
 522
 523 Loads in a model for the given name
 524 ==================
 525 */
 526 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 527 {
 528         dp_model_t *model;
 529         model = Mod_FindName(name, parentname);
 530         if (!model->loaded || checkdisk)
 531                 Mod_LoadModel(model, crash, checkdisk);
 532         return model;
 533 }
 534
 535 /*
 536 ==================
 537 Mod_Reload
 538
 539 Reloads all models if they have changed
 540 ==================
 541 */
 542 void Mod_Reload(void)
 543 {
 544         int i, count;
 545         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 546         dp_model_t *mod;
 547
 548         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 549         count = 0;
 550         for (i = 0;i < nummodels;i++)
 551                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 552                         ++count;
 553         for (i = 0;i < nummodels;i++)
 554                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 555                 {
 556                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 557                         Mod_LoadModel(mod, true, true);
 558                         SCR_PopLoadingScreen(false);
 559                 }
 560         SCR_PopLoadingScreen(false);
 561 }
 562
 563 unsigned char *mod_base;
 564
 565
 566 //=============================================================================
 567
 568 /*
 569 ================
 570 Mod_Print
 571 ================
 572 */
 573 static void Mod_Print(void)
 574 {
 575         int i;
 576         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 577         dp_model_t *mod;
 578
 579         Con_Print("Loaded models:\n");
 580         for (i = 0;i < nummodels;i++)
 581         {
 582                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 583                 {
 584                         if (mod->brush.numsubmodels)
 585                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 586                         else
 587                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 588                 }
 589         }
 590 }
 591
 592 /*
 593 ================
 594 Mod_Precache
 595 ================
 596 */
 597 static void Mod_Precache(void)
 598 {
 599         if (Cmd_Argc() == 2)
 600                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 601         else
 602                 Con_Print("usage: modelprecache <filename>\n");
 603 }
 604
 605 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 606 {
 607         int i, count;
 608         unsigned char *used;
 609         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 610         memset(used, 0, numvertices);
 611         for (i = 0;i < numelements;i++)
 612                 used[elements[i]] = 1;
 613         for (i = 0, count = 0;i < numvertices;i++)
 614                 remapvertices[i] = used[i] ? count++ : -1;
 615         Mem_Free(used);
 616         return count;
 617 }
 618
 619 #if 1
 620 // fast way, using an edge hash
 621 #define TRIANGLEEDGEHASH 8192
 622 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 623 {
 624         int i, j, p, e1, e2, *n, hashindex, count, match;
 625         const int *e;
 626         typedef struct edgehashentry_s
 627         {
 628                 struct edgehashentry_s *next;
 629                 int triangle;
 630                 int element[2];
 631         }
 632         edgehashentry_t;
 633         edgehashentry_t *edgehash[TRIANGLEEDGEHASH], *edgehashentries, edgehashentriesbuffer[TRIANGLEEDGEHASH*3], *hash;
 634         memset(edgehash, 0, sizeof(edgehash));
 635         edgehashentries = edgehashentriesbuffer;
 636         // if there are too many triangles for the stack array, allocate larger buffer
 637         if (numtriangles > TRIANGLEEDGEHASH)
 638                 edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 639         // find neighboring triangles
 640         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 641         {
 642                 for (j = 0, p = 2;j < 3;p = j, j++)
 643                 {
 644                         e1 = e[p];
 645                         e2 = e[j];
 646                         // this hash index works for both forward and backward edges
 647                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 648                         hash = edgehashentries + i * 3 + j;
 649                         hash->next = edgehash[hashindex];
 650                         edgehash[hashindex] = hash;
 651                         hash->triangle = i;
 652                         hash->element[0] = e1;
 653                         hash->element[1] = e2;
 654                 }
 655         }
 656         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 657         {
 658                 for (j = 0, p = 2;j < 3;p = j, j++)
 659                 {
 660                         e1 = e[p];
 661                         e2 = e[j];
 662                         // this hash index works for both forward and backward edges
 663                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 664                         count = 0;
 665                         match = -1;
 666                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 667                         {
 668                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 669                                 {
 670                                         if (hash->triangle != i)
 671                                                 match = hash->triangle;
 672                                         count++;
 673                                 }
 674                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 675                                         count++;
 676                         }
 677                         // detect edges shared by three triangles and make them seams
 678                         if (count > 2)
 679                                 match = -1;
 680                         n[p] = match;
 681                 }
 682
 683                 // also send a keepalive here (this can take a while too!)
 684                 CL_KeepaliveMessage(false);
 685         }
 686         // free the allocated buffer
 687         if (edgehashentries != edgehashentriesbuffer)
 688                 Mem_Free(edgehashentries);
 689 }
 690 #else
 691 // very slow but simple way
 692 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 693 {
 694         int i, match, count;
 695         count = 0;
 696         match = -1;
 697         for (i = 0;i < numtriangles;i++, elements += 3)
 698         {
 699                      if ((elements[0] == start && elements[1] == end)
 700                       || (elements[1] == start && elements[2] == end)
 701                       || (elements[2] == start && elements[0] == end))
 702                 {
 703                         if (i != ignore)
 704                                 match = i;
 705                         count++;
 706                 }
 707                 else if ((elements[1] == start && elements[0] == end)
 708                       || (elements[2] == start && elements[1] == end)
 709                       || (elements[0] == start && elements[2] == end))
 710                         count++;
 711         }
 712         // detect edges shared by three triangles and make them seams
 713         if (count > 2)
 714                 match = -1;
 715         return match;
 716 }
 717
 718 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 719 {
 720         int i, *n;
 721         const int *e;
 722         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 723         {
 724                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 725                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 726                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 727         }
 728 }
 729 #endif
 730
 731 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 732 {
 733         int i, warned = false, endvertex = firstvertex + numverts;
 734         for (i = 0;i < numtriangles * 3;i++)
 735         {
 736                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 737                 {
 738                         if (!warned)
 739                         {
 740                                 warned = true;
 741                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 742                         }
 743                         elements[i] = firstvertex;
 744                 }
 745         }
 746 }
 747
 748 // warning: this is an expensive function!
 749 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 750 {
 751         int i, j;
 752         const int *element;
 753         float *vectorNormal;
 754         float areaNormal[3];
 755         // clear the vectors
 756         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 757         // process each vertex of each triangle and accumulate the results
 758         // use area-averaging, to make triangles with a big area have a bigger
 759         // weighting on the vertex normal than triangles with a small area
 760         // to do so, just add the 'normals' together (the bigger the area
 761         // the greater the length of the normal is
 762         element = elements;
 763         for (i = 0; i < numtriangles; i++, element += 3)
 764         {
 765                 TriangleNormal(
 766                         vertex3f + element[0] * 3,
 767                         vertex3f + element[1] * 3,
 768                         vertex3f + element[2] * 3,
 769                         areaNormal
 770                         );
 771
 772                 if (!areaweighting)
 773                         VectorNormalize(areaNormal);
 774
 775                 for (j = 0;j < 3;j++)
 776                 {
 777                         vectorNormal = normal3f + element[j] * 3;
 778                         vectorNormal[0] += areaNormal[0];
 779                         vectorNormal[1] += areaNormal[1];
 780                         vectorNormal[2] += areaNormal[2];
 781                 }
 782         }
 783         // and just normalize the accumulated vertex normal in the end
 784         vectorNormal = normal3f + 3 * firstvertex;
 785         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 786                 VectorNormalize(vectorNormal);
 787 }
 788
 789 void Mod_BuildBumpVectors(const float *v0, const float *v1, const float *v2, const float *tc0, const float *tc1, const float *tc2, float *svector3f, float *tvector3f, float *normal3f)
 790 {
 791         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 792         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 793         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 794
 795         // 6 multiply, 9 subtract
 796         VectorSubtract(v1, v0, v10);
 797         VectorSubtract(v2, v0, v20);
 798         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 799         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 800         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 801         // 12 multiply, 10 subtract
 802         tc10[1] = tc1[1] - tc0[1];
 803         tc20[1] = tc2[1] - tc0[1];
 804         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 805         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 806         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 807         tc10[0] = tc1[0] - tc0[0];
 808         tc20[0] = tc2[0] - tc0[0];
 809         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 810         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 811         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 812         // 12 multiply, 4 add, 6 subtract
 813         f = DotProduct(svector3f, normal3f);
 814         svector3f[0] -= f * normal3f[0];
 815         svector3f[1] -= f * normal3f[1];
 816         svector3f[2] -= f * normal3f[2];
 817         f = DotProduct(tvector3f, normal3f);
 818         tvector3f[0] -= f * normal3f[0];
 819         tvector3f[1] -= f * normal3f[1];
 820         tvector3f[2] -= f * normal3f[2];
 821         // if texture is mapped the wrong way (counterclockwise), the tangents
 822         // have to be flipped, this is detected by calculating a normal from the
 823         // two tangents, and seeing if it is opposite the surface normal
 824         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 825         CrossProduct(tvector3f, svector3f, tangentcross);
 826         if (DotProduct(tangentcross, normal3f) < 0)
 827         {
 828                 VectorNegate(svector3f, svector3f);
 829                 VectorNegate(tvector3f, tvector3f);
 830         }
 831 }
 832
 833 // warning: this is a very expensive function!
 834 void Mod_BuildTextureVectorsFromNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const float *texcoord2f, const float *normal3f, const int *elements, float *svector3f, float *tvector3f, qboolean areaweighting)
 835 {
 836         int i, tnum;
 837         float sdir[3], tdir[3], normal[3], *sv, *tv;
 838         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 839         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 840         const int *e;
 841         // clear the vectors
 842         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 843         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 844         // process each vertex of each triangle and accumulate the results
 845         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 846         {
 847                 v0 = vertex3f + e[0] * 3;
 848                 v1 = vertex3f + e[1] * 3;
 849                 v2 = vertex3f + e[2] * 3;
 850                 tc0 = texcoord2f + e[0] * 2;
 851                 tc1 = texcoord2f + e[1] * 2;
 852                 tc2 = texcoord2f + e[2] * 2;
 853
 854                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 855                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 856
 857                 // calculate the edge directions and surface normal
 858                 // 6 multiply, 9 subtract
 859                 VectorSubtract(v1, v0, v10);
 860                 VectorSubtract(v2, v0, v20);
 861                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 862                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 863                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 864
 865                 // calculate the tangents
 866                 // 12 multiply, 10 subtract
 867                 tc10[1] = tc1[1] - tc0[1];
 868                 tc20[1] = tc2[1] - tc0[1];
 869                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 870                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 871                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 872                 tc10[0] = tc1[0] - tc0[0];
 873                 tc20[0] = tc2[0] - tc0[0];
 874                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 875                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 876                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 877
 878                 // if texture is mapped the wrong way (counterclockwise), the tangents
 879                 // have to be flipped, this is detected by calculating a normal from the
 880                 // two tangents, and seeing if it is opposite the surface normal
 881                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 882                 CrossProduct(tdir, sdir, tangentcross);
 883                 if (DotProduct(tangentcross, normal) < 0)
 884                 {
 885                         VectorNegate(sdir, sdir);
 886                         VectorNegate(tdir, tdir);
 887                 }
 888
 889                 if (!areaweighting)
 890                 {
 891                         VectorNormalize(sdir);
 892                         VectorNormalize(tdir);
 893                 }
 894                 for (i = 0;i < 3;i++)
 895                 {
 896                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 897                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 898                 }
 899         }
 900         // make the tangents completely perpendicular to the surface normal, and
 901         // then normalize them
 902         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 903         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 904         {
 905                 f = -DotProduct(sv, n);
 906                 VectorMA(sv, f, n, sv);
 907                 VectorNormalize(sv);
 908                 f = -DotProduct(tv, n);
 909                 VectorMA(tv, f, n, tv);
 910                 VectorNormalize(tv);
 911         }
 912 }
 913
 914 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
 915 {
 916         unsigned char *data;
 917         data = (unsigned char *)Mem_Alloc(mempool, numvertices * (3 + 3 + 3 + 3 + 2 + 2 + (vertexcolors ? 4 : 0)) * sizeof(float) + numvertices * (lightmapoffsets ? 1 : 0) * sizeof(int) + numtriangles * (3 + (neighbors ? 3 : 0)) * sizeof(int) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0));
 918         loadmodel->surfmesh.num_vertices = numvertices;
 919         loadmodel->surfmesh.num_triangles = numtriangles;
 920         if (loadmodel->surfmesh.num_vertices)
 921         {
 922                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 923                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 924                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 925                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 926                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 927                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 928                 if (vertexcolors)
 929                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 930                 if (lightmapoffsets)
 931                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 932         }
 933         if (loadmodel->surfmesh.num_triangles)
 934         {
 935                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 936                 if (neighbors)
 937                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 938                 if (loadmodel->surfmesh.num_vertices <= 65536)
 939                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 940         }
 941 }
 942
 943 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
 944 {
 945         shadowmesh_t *newmesh;
 946         unsigned char *data;
 947         int size;
 948         size = sizeof(shadowmesh_t);
 949         size += maxverts * sizeof(float[3]);
 950         if (light)
 951                 size += maxverts * sizeof(float[11]);
 952         size += maxtriangles * sizeof(int[3]);
 953         if (maxverts <= 65536)
 954                 size += maxtriangles * sizeof(unsigned short[3]);
 955         if (neighbors)
 956                 size += maxtriangles * sizeof(int[3]);
 957         if (expandable)
 958                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
 959         data = (unsigned char *)Mem_Alloc(mempool, size);
 960         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
 961         newmesh->map_diffuse = map_diffuse;
 962         newmesh->map_specular = map_specular;
 963         newmesh->map_normal = map_normal;
 964         newmesh->maxverts = maxverts;
 965         newmesh->maxtriangles = maxtriangles;
 966         newmesh->numverts = 0;
 967         newmesh->numtriangles = 0;
 968         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
 969         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
 970
 971         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
 972         if (light)
 973         {
 974                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
 975                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
 976                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
 977                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
 978         }
 979         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
 980         if (neighbors)
 981         {
 982                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
 983         }
 984         if (expandable)
 985         {
 986                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
 987                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
 988         }
 989         if (maxverts <= 65536)
 990                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
 991         return newmesh;
 992 }
 993
 994 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
 995 {
 996         shadowmesh_t *newmesh;
 997         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
 998         newmesh->numverts = oldmesh->numverts;
 999         newmesh->numtriangles = oldmesh->numtriangles;
1000         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1001         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1002
1003         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1004         if (newmesh->svector3f && oldmesh->svector3f)
1005         {
1006                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1007                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1008                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1009                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1010         }
1011         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1012         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1013                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1014         return newmesh;
1015 }
1016
1017 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1018 {
1019         int hashindex, vnum;
1020         shadowmeshvertexhash_t *hash;
1021         // this uses prime numbers intentionally
1022         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1023         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1024         {
1025                 vnum = (hash - mesh->vertexhashentries);
1026                 if ((mesh->vertex3f == NULL || (mesh->vertex3f[vnum * 3 + 0] == vertex14f[0] && mesh->vertex3f[vnum * 3 + 1] == vertex14f[1] && mesh->vertex3f[vnum * 3 + 2] == vertex14f[2]))
1027                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1028                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1029                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1030                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1031                         return hash - mesh->vertexhashentries;
1032         }
1033         vnum = mesh->numverts++;
1034         hash = mesh->vertexhashentries + vnum;
1035         hash->next = mesh->vertexhashtable[hashindex];
1036         mesh->vertexhashtable[hashindex] = hash;
1037         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1038         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1039         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1040         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1041         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1042         return vnum;
1043 }
1044
1045 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1046 {
1047         if (mesh->numtriangles == 0)
1048         {
1049                 // set the properties on this empty mesh to be more favorable...
1050                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1051                 mesh->map_diffuse = map_diffuse;
1052                 mesh->map_specular = map_specular;
1053                 mesh->map_normal = map_normal;
1054         }
1055         while (mesh->map_diffuse != map_diffuse || mesh->map_specular != map_specular || mesh->map_normal != map_normal || mesh->numverts + 3 > mesh->maxverts || mesh->numtriangles + 1 > mesh->maxtriangles)
1056         {
1057                 if (mesh->next == NULL)
1058                         mesh->next = Mod_ShadowMesh_Alloc(mempool, max(mesh->maxverts, 300), max(mesh->maxtriangles, 100), map_diffuse, map_specular, map_normal, mesh->svector3f != NULL, mesh->neighbor3i != NULL, true);
1059                 mesh = mesh->next;
1060         }
1061         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1062         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1063         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1064         mesh->numtriangles++;
1065 }
1066
1067 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, const float *vertex3f, const float *svector3f, const float *tvector3f, const float *normal3f, const float *texcoord2f, int numtris, const int *element3i)
1068 {
1069         int i, j, e;
1070         float vbuf[3*14], *v;
1071         memset(vbuf, 0, sizeof(vbuf));
1072         for (i = 0;i < numtris;i++)
1073         {
1074                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1075                 {
1076                         e = *element3i++;
1077                         if (vertex3f)
1078                         {
1079                                 v[0] = vertex3f[e * 3 + 0];
1080                                 v[1] = vertex3f[e * 3 + 1];
1081                                 v[2] = vertex3f[e * 3 + 2];
1082                         }
1083                         if (svector3f)
1084                         {
1085                                 v[3] = svector3f[e * 3 + 0];
1086                                 v[4] = svector3f[e * 3 + 1];
1087                                 v[5] = svector3f[e * 3 + 2];
1088                         }
1089                         if (tvector3f)
1090                         {
1091                                 v[6] = tvector3f[e * 3 + 0];
1092                                 v[7] = tvector3f[e * 3 + 1];
1093                                 v[8] = tvector3f[e * 3 + 2];
1094                         }
1095                         if (normal3f)
1096                         {
1097                                 v[9] = normal3f[e * 3 + 0];
1098                                 v[10] = normal3f[e * 3 + 1];
1099                                 v[11] = normal3f[e * 3 + 2];
1100                         }
1101                         if (texcoord2f)
1102                         {
1103                                 v[12] = texcoord2f[e * 2 + 0];
1104                                 v[13] = texcoord2f[e * 2 + 1];
1105                         }
1106                 }
1107                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1108         }
1109
1110         // the triangle calculation can take a while, so let's do a keepalive here
1111         CL_KeepaliveMessage(false);
1112 }
1113
1114 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
1115 {
1116         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1117         CL_KeepaliveMessage(false);
1118
1119         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1120 }
1121
1122 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
1123 {
1124         if (!gl_support_arb_vertex_buffer_object)
1125                 return;
1126
1127         // element buffer is easy because it's just one array
1128         if (mesh->numtriangles)
1129         {
1130                 if (mesh->element3s)
1131                         mesh->ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3s, mesh->numtriangles * sizeof(unsigned short[3]), "shadowmesh");
1132                 else
1133                         mesh->ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3i, mesh->numtriangles * sizeof(unsigned int[3]), "shadowmesh");
1134         }
1135
1136         // vertex buffer is several arrays and we put them in the same buffer
1137         //
1138         // is this wise?  the texcoordtexture2f array is used with dynamic
1139         // vertex/svector/tvector/normal when rendering animated models, on the
1140         // other hand animated models don't use a lot of vertices anyway...
1141         if (mesh->numverts)
1142         {
1143                 size_t size;
1144                 unsigned char *mem;
1145                 size = 0;
1146                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1147                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1148                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1149                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1150                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1151                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1152                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1153                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1154                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1155                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1156                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1157                 mesh->vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, "shadowmesh");
1158                 Mem_Free(mem);
1159         }
1160 }
1161
1162 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1163 {
1164         shadowmesh_t *mesh, *newmesh, *nextmesh;
1165         // reallocate meshs to conserve space
1166         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1167         {
1168                 nextmesh = mesh->next;
1169                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1170                 {
1171                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1172                         newmesh->next = firstmesh;
1173                         firstmesh = newmesh;
1174                         if (newmesh->element3s)
1175                         {
1176                                 int i;
1177                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1178                                         newmesh->element3s[i] = newmesh->element3i[i];
1179                         }
1180                         if (createvbo)
1181                                 Mod_ShadowMesh_CreateVBOs(newmesh);
1182                 }
1183                 Mem_Free(mesh);
1184         }
1185
1186         // this can take a while, so let's do a keepalive here
1187         CL_KeepaliveMessage(false);
1188
1189         return firstmesh;
1190 }
1191
1192 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1193 {
1194         int i;
1195         shadowmesh_t *mesh;
1196         vec3_t nmins, nmaxs, ncenter, temp;
1197         float nradius2, dist2, *v;
1198         VectorClear(nmins);
1199         VectorClear(nmaxs);
1200         // calculate bbox
1201         for (mesh = firstmesh;mesh;mesh = mesh->next)
1202         {
1203                 if (mesh == firstmesh)
1204                 {
1205                         VectorCopy(mesh->vertex3f, nmins);
1206                         VectorCopy(mesh->vertex3f, nmaxs);
1207                 }
1208                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1209                 {
1210                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1211                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1212                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1213                 }
1214         }
1215         // calculate center and radius
1216         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1217         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1218         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1219         nradius2 = 0;
1220         for (mesh = firstmesh;mesh;mesh = mesh->next)
1221         {
1222                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1223                 {
1224                         VectorSubtract(v, ncenter, temp);
1225                         dist2 = DotProduct(temp, temp);
1226                         if (nradius2 < dist2)
1227                                 nradius2 = dist2;
1228                 }
1229         }
1230         // return data
1231         if (mins)
1232                 VectorCopy(nmins, mins);
1233         if (maxs)
1234                 VectorCopy(nmaxs, maxs);
1235         if (center)
1236                 VectorCopy(ncenter, center);
1237         if (radius)
1238                 *radius = sqrt(nradius2);
1239 }
1240
1241 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1242 {
1243         shadowmesh_t *nextmesh;
1244         for (;mesh;mesh = nextmesh)
1245         {
1246                 if (mesh->ebo3i)
1247                         R_Mesh_DestroyBufferObject(mesh->ebo3i);
1248                 if (mesh->ebo3s)
1249                         R_Mesh_DestroyBufferObject(mesh->ebo3s);
1250                 if (mesh->vbo)
1251                         R_Mesh_DestroyBufferObject(mesh->vbo);
1252                 nextmesh = mesh->next;
1253                 Mem_Free(mesh);
1254         }
1255 }
1256
1257 void Mod_GetTerrainVertex3fTexCoord2fFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1258 {
1259         float v[3], tc[3];
1260         v[0] = ix;
1261         v[1] = iy;
1262         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1263                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1264         else
1265                 v[2] = 0;
1266         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1267         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1268         texcoord2f[0] = tc[0];
1269         texcoord2f[1] = tc[1];
1270 }
1271
1272 void Mod_GetTerrainVertexFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1273 {
1274         float vup[3], vdown[3], vleft[3], vright[3];
1275         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1276         float sv[3], tv[3], nl[3];
1277         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1278         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1279         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1280         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1281         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1282         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1283         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1284         VectorAdd(svector3f, sv, svector3f);
1285         VectorAdd(tvector3f, tv, tvector3f);
1286         VectorAdd(normal3f, nl, normal3f);
1287         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1288         VectorAdd(svector3f, sv, svector3f);
1289         VectorAdd(tvector3f, tv, tvector3f);
1290         VectorAdd(normal3f, nl, normal3f);
1291         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1292         VectorAdd(svector3f, sv, svector3f);
1293         VectorAdd(tvector3f, tv, tvector3f);
1294         VectorAdd(normal3f, nl, normal3f);
1295 }
1296
1297 void Mod_ConstructTerrainPatchFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, int *neighbor3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1298 {
1299         int x, y, ix, iy, *e;
1300         e = element3i;
1301         for (y = 0;y < height;y++)
1302         {
1303                 for (x = 0;x < width;x++)
1304                 {
1305                         e[0] = (y + 1) * (width + 1) + (x + 0);
1306                         e[1] = (y + 0) * (width + 1) + (x + 0);
1307                         e[2] = (y + 1) * (width + 1) + (x + 1);
1308                         e[3] = (y + 0) * (width + 1) + (x + 0);
1309                         e[4] = (y + 0) * (width + 1) + (x + 1);
1310                         e[5] = (y + 1) * (width + 1) + (x + 1);
1311                         e += 6;
1312                 }
1313         }
1314         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1315         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1316                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1317                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1318 }
1319
1320 q3wavefunc_t Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1321 {
1322         if (!strcasecmp(s, "sin"))             return Q3WAVEFUNC_SIN;
1323         if (!strcasecmp(s, "square"))          return Q3WAVEFUNC_SQUARE;
1324         if (!strcasecmp(s, "triangle"))        return Q3WAVEFUNC_TRIANGLE;
1325         if (!strcasecmp(s, "sawtooth"))        return Q3WAVEFUNC_SAWTOOTH;
1326         if (!strcasecmp(s, "inversesawtooth")) return Q3WAVEFUNC_INVERSESAWTOOTH;
1327         if (!strcasecmp(s, "noise"))           return Q3WAVEFUNC_NOISE;
1328         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1329         return Q3WAVEFUNC_NONE;
1330 }
1331
1332 void Mod_FreeQ3Shaders(void)
1333 {
1334         Mem_FreePool(&q3shaders_mem);
1335 }
1336
1337 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1338 {
1339         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1340         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1341         q3shader_hash_entry_t* lastEntry = NULL;
1342         while (entry != NULL)
1343         {
1344                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1345                 {
1346                         unsigned char *start, *end, *start2;
1347                         start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1348                         end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1349                         start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1350                         if(memcmp(start, start2, end - start))
1351                                 Con_Printf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1352                         else
1353                                 Con_DPrintf("Shader '%s' already defined\n", shader->name);
1354                         return;
1355                 }
1356                 lastEntry = entry;
1357                 entry = entry->chain;
1358         }
1359         if (entry == NULL)
1360         {
1361                 if (lastEntry->shader.name[0] != 0)
1362                 {
1363                         /* Add to chain */
1364                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1365                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1366
1367                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1368                         lastEntry->chain = newEntry;
1369                         newEntry->chain = NULL;
1370                         lastEntry = newEntry;
1371                 }
1372                 /* else: head of chain, in hash entry array */
1373                 entry = lastEntry;
1374         }
1375         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1376 }
1377
1378 extern cvar_t r_picmipworld;
1379 void Mod_LoadQ3Shaders(void)
1380 {
1381         int j;
1382         int fileindex;
1383         fssearch_t *search;
1384         char *f;
1385         const char *text;
1386         q3shaderinfo_t shader;
1387         q3shaderinfo_layer_t *layer;
1388         int numparameters;
1389         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1390
1391         Mod_FreeQ3Shaders();
1392
1393         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1394         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1395                 sizeof (q3shader_data_t));
1396         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1397                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1398         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1399                 q3shaders_mem, sizeof (char**), 256);
1400
1401         search = FS_Search("scripts/*.shader", true, false);
1402         if (!search)
1403                 return;
1404         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1405         {
1406                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1407                 if (!f)
1408                         continue;
1409                 while (COM_ParseToken_QuakeC(&text, false))
1410                 {
1411                         memset (&shader, 0, sizeof(shader));
1412                         shader.reflectmin = 0;
1413                         shader.reflectmax = 1;
1414                         shader.refractfactor = 1;
1415                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1416                         shader.reflectfactor = 1;
1417                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1418                         shader.r_water_wateralpha = 1;
1419                         shader.specularpowermod = 1;
1420
1421                         strlcpy(shader.name, com_token, sizeof(shader.name));
1422                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1423                         {
1424                                 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1425                                 break;
1426                         }
1427                         while (COM_ParseToken_QuakeC(&text, false))
1428                         {
1429                                 if (!strcasecmp(com_token, "}"))
1430                                         break;
1431                                 if (!strcasecmp(com_token, "{"))
1432                                 {
1433                                         static q3shaderinfo_layer_t dummy;
1434                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1435                                         {
1436                                                 layer = shader.layers + shader.numlayers++;
1437                                         }
1438                                         else
1439                                         {
1440                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1441                                                 memset(&dummy, 0, sizeof(dummy));
1442                                                 layer = &dummy;
1443                                         }
1444                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1445                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1446                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1447                                         layer->blendfunc[0] = GL_ONE;
1448                                         layer->blendfunc[1] = GL_ZERO;
1449                                         while (COM_ParseToken_QuakeC(&text, false))
1450                                         {
1451                                                 if (!strcasecmp(com_token, "}"))
1452                                                         break;
1453                                                 if (!strcasecmp(com_token, "\n"))
1454                                                         continue;
1455                                                 numparameters = 0;
1456                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1457                                                 {
1458                                                         if (j < TEXTURE_MAXFRAMES + 4)
1459                                                         {
1460                                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1461                                                                 numparameters = j + 1;
1462                                                         }
1463                                                         if (!COM_ParseToken_QuakeC(&text, true))
1464                                                                 break;
1465                                                 }
1466                                                 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1467                                                         parameter[j][0] = 0;
1468                                                 if (developer.integer >= 100)
1469                                                 {
1470                                                         Con_Printf("%s %i: ", shader.name, shader.numlayers - 1);
1471                                                         for (j = 0;j < numparameters;j++)
1472                                                                 Con_Printf(" %s", parameter[j]);
1473                                                         Con_Print("\n");
1474                                                 }
1475                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1476                                                 {
1477                                                         if (numparameters == 2)
1478                                                         {
1479                                                                 if (!strcasecmp(parameter[1], "add"))
1480                                                                 {
1481                                                                         layer->blendfunc[0] = GL_ONE;
1482                                                                         layer->blendfunc[1] = GL_ONE;
1483                                                                 }
1484                                                                 else if (!strcasecmp(parameter[1], "filter"))
1485                                                                 {
1486                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1487                                                                         layer->blendfunc[1] = GL_ZERO;
1488                                                                 }
1489                                                                 else if (!strcasecmp(parameter[1], "blend"))
1490                                                                 {
1491                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1492                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1493                                                                 }
1494                                                         }
1495                                                         else if (numparameters == 3)
1496                                                         {
1497                                                                 int k;
1498                                                                 for (k = 0;k < 2;k++)
1499                                                                 {
1500                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1501                                                                                 layer->blendfunc[k] = GL_ONE;
1502                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1503                                                                                 layer->blendfunc[k] = GL_ZERO;
1504                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1505                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1506                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1507                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1508                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1509                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1510                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1511                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1512                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1513                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1514                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1515                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1516                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1517                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1518                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1519                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1520                                                                         else
1521                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1522                                                                 }
1523                                                         }
1524                                                 }
1525                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1526                                                         layer->alphatest = true;
1527                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1528                                                 {
1529                                                         if (!strcasecmp(parameter[0], "clampmap"))
1530                                                                 layer->clampmap = true;
1531                                                         layer->numframes = 1;
1532                                                         layer->framerate = 1;
1533                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1534                                                                 &q3shader_data->char_ptrs);
1535                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1536                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1537                                                                 shader.lighting = true;
1538                                                 }
1539                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1540                                                 {
1541                                                         int i;
1542                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1543                                                         layer->framerate = atof(parameter[1]);
1544                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1545                                                         for (i = 0;i < layer->numframes;i++)
1546                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1547                                                 }
1548                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1549                                                 {
1550                                                         int i;
1551                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1552                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1553                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1554                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1555                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1556                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1557                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1558                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1559                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1560                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1561                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1562                                                         else if (!strcasecmp(parameter[1], "wave"))
1563                                                         {
1564                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1565                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1566                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1567                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1568                                                         }
1569                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1570                                                 }
1571                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1572                                                 {
1573                                                         int i;
1574                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1575                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1576                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1577                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1578                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1579                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1580                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1581                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1582                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1583                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1584                                                         else if (!strcasecmp(parameter[1], "wave"))
1585                                                         {
1586                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1587                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1588                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1589                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1590                                                         }
1591                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1592                                                 }
1593                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1594                                                 {
1595                                                         int i;
1596                                                         // observed values: tcgen environment
1597                                                         // no other values have been observed in real shaders
1598                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1599                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1600                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1601                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1602                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1603                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1604                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1605                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1606                                                 }
1607                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1608                                                 {
1609                                                         int i, tcmodindex;
1610                                                         // observed values:
1611                                                         // tcmod rotate #
1612                                                         // tcmod scale # #
1613                                                         // tcmod scroll # #
1614                                                         // tcmod stretch sin # # # #
1615                                                         // tcmod stretch triangle # # # #
1616                                                         // tcmod transform # # # # # #
1617                                                         // tcmod turb # # # #
1618                                                         // tcmod turb sin # # # #  (this is bogus)
1619                                                         // no other values have been observed in real shaders
1620                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1621                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1622                                                                         break;
1623                                                         if (tcmodindex < Q3MAXTCMODS)
1624                                                         {
1625                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1626                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1627                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1628                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1629                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1630                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1631                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1632                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1633                                                                 {
1634                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1635                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1636                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1637                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1638                                                                 }
1639                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1640                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1641                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1642                                                         }
1643                                                         else
1644                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1645                                                 }
1646                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1647                                                 if (!strcasecmp(com_token, "}"))
1648                                                         break;
1649                                         }
1650                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1651                                                 shader.lighting = true;
1652                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1653                                         {
1654                                                 if (layer == shader.layers + 0)
1655                                                 {
1656                                                         // vertex controlled transparency
1657                                                         shader.vertexalpha = true;
1658                                                 }
1659                                                 else
1660                                                 {
1661                                                         // multilayer terrain shader or similar
1662                                                         shader.textureblendalpha = true;
1663                                                 }
1664                                         }
1665                                         layer->texflags = TEXF_ALPHA | TEXF_PRECACHE;
1666                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1667                                                 layer->texflags |= TEXF_MIPMAP;
1668                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1669                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1670                                         if (layer->clampmap)
1671                                                 layer->texflags |= TEXF_CLAMP;
1672                                         continue;
1673                                 }
1674                                 numparameters = 0;
1675                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1676                                 {
1677                                         if (j < TEXTURE_MAXFRAMES + 4)
1678                                         {
1679                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1680                                                 numparameters = j + 1;
1681                                         }
1682                                         if (!COM_ParseToken_QuakeC(&text, true))
1683                                                 break;
1684                                 }
1685                                 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1686                                         parameter[j][0] = 0;
1687                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1688                                         break;
1689                                 if (developer.integer >= 100)
1690                                 {
1691                                         Con_Printf("%s: ", shader.name);
1692                                         for (j = 0;j < numparameters;j++)
1693                                                 Con_Printf(" %s", parameter[j]);
1694                                         Con_Print("\n");
1695                                 }
1696                                 if (numparameters < 1)
1697                                         continue;
1698                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1699                                 {
1700                                         if (!strcasecmp(parameter[1], "alphashadow"))
1701                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1702                                         else if (!strcasecmp(parameter[1], "areaportal"))
1703                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1704                                         else if (!strcasecmp(parameter[1], "botclip"))
1705                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1706                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1707                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1708                                         else if (!strcasecmp(parameter[1], "detail"))
1709                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1710                                         else if (!strcasecmp(parameter[1], "donotenter"))
1711                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1712                                         else if (!strcasecmp(parameter[1], "dust"))
1713                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1714                                         else if (!strcasecmp(parameter[1], "hint"))
1715                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1716                                         else if (!strcasecmp(parameter[1], "fog"))
1717                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1718                                         else if (!strcasecmp(parameter[1], "lava"))
1719                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1720                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1721                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1722                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1723                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1724                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1725                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1726                                         else if (!strcasecmp(parameter[1], "nodamage"))
1727                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1728                                         else if (!strcasecmp(parameter[1], "nodlight"))
1729                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1730                                         else if (!strcasecmp(parameter[1], "nodraw"))
1731                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1732                                         else if (!strcasecmp(parameter[1], "nodrop"))
1733                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1734                                         else if (!strcasecmp(parameter[1], "noimpact"))
1735                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1736                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1737                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1738                                         else if (!strcasecmp(parameter[1], "nomarks"))
1739                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1740                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1741                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1742                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1743                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1744                                         else if (!strcasecmp(parameter[1], "origin"))
1745                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1746                                         else if (!strcasecmp(parameter[1], "playerclip"))
1747                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1748                                         else if (!strcasecmp(parameter[1], "sky"))
1749                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1750                                         else if (!strcasecmp(parameter[1], "slick"))
1751                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1752                                         else if (!strcasecmp(parameter[1], "slime"))
1753                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1754                                         else if (!strcasecmp(parameter[1], "structural"))
1755                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1756                                         else if (!strcasecmp(parameter[1], "trans"))
1757                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1758                                         else if (!strcasecmp(parameter[1], "water"))
1759                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1760                                         else if (!strcasecmp(parameter[1], "pointlight"))
1761                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1762                                         else if (!strcasecmp(parameter[1], "antiportal"))
1763                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1764                                         else
1765                                                 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1766                                 }
1767                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1768                                         shader.dpshadow = true;
1769                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1770                                         shader.dpnoshadow = true;
1771                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
1772                                 {
1773                                         // some q3 skies don't have the sky parm set
1774                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1775                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1776                                 }
1777                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
1778                                 {
1779                                         // some q3 skies don't have the sky parm set
1780                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1781                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
1782                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1783                                 }
1784                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
1785                                 {
1786                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
1787                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
1788                                 }
1789                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
1790                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1791                                 else if (!strcasecmp(parameter[0], "nopicmip"))
1792                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
1793                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
1794                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
1795                                 else if (!strcasecmp(parameter[0], "dp_refract") && numparameters >= 5)
1796                                 {
1797                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
1798                                         shader.refractfactor = atof(parameter[1]);
1799                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
1800                                 }
1801                                 else if (!strcasecmp(parameter[0], "dp_reflect") && numparameters >= 6)
1802                                 {
1803                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
1804                                         shader.reflectfactor = atof(parameter[1]);
1805                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
1806                                 }
1807                                 else if (!strcasecmp(parameter[0], "dp_water") && numparameters >= 12)
1808                                 {
1809                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
1810                                         shader.reflectmin = atof(parameter[1]);
1811                                         shader.reflectmax = atof(parameter[2]);
1812                                         shader.refractfactor = atof(parameter[3]);
1813                                         shader.reflectfactor = atof(parameter[4]);
1814                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
1815                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
1816                                         shader.r_water_wateralpha = atof(parameter[11]);
1817                                 }
1818                                 else if (!strcasecmp(parameter[0], "dp_specularpowermod") && numparameters >= 2)
1819                                 {
1820                                         shader.specularpowermod = atof(parameter[1]);
1821                                 }
1822                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
1823                                 {
1824                                         int i, deformindex;
1825                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
1826                                                 if (!shader.deforms[deformindex].deform)
1827                                                         break;
1828                                         if (deformindex < Q3MAXDEFORMS)
1829                                         {
1830                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
1831                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
1832                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
1833                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
1834                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
1835                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
1836                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
1837                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
1838                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
1839                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
1840                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
1841                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
1842                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
1843                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
1844                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
1845                                                 else if (!strcasecmp(parameter[1], "wave"            ))
1846                                                 {
1847                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
1848                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
1849                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
1850                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
1851                                                 }
1852                                                 else if (!strcasecmp(parameter[1], "move"            ))
1853                                                 {
1854                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
1855                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
1856                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
1857                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
1858                                                 }
1859                                         }
1860                                 }
1861                         }
1862                         // pick the primary layer to render with
1863                         if (shader.numlayers)
1864                         {
1865                                 shader.backgroundlayer = -1;
1866                                 shader.primarylayer = 0;
1867                                 // if lightmap comes first this is definitely an ordinary texture
1868                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
1869                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
1870                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
1871                                 {
1872                                         shader.backgroundlayer = -1;
1873                                         shader.primarylayer = 1;
1874                                 }
1875                                 else if (shader.numlayers >= 2
1876                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
1877                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
1878                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
1879                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
1880                                 {
1881                                         // terrain blending or other effects
1882                                         shader.backgroundlayer = 0;
1883                                         shader.primarylayer = 1;
1884                                 }
1885                         }
1886                         // fix up multiple reflection types
1887                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
1888                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION);
1889
1890                         Q3Shader_AddToHash (&shader);
1891                 }
1892                 Mem_Free(f);
1893         }
1894         FS_FreeSearch(search);
1895 }
1896
1897 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
1898 {
1899         unsigned short hash;
1900         q3shader_hash_entry_t* entry;
1901         if (!q3shaders_mem)
1902                 Mod_LoadQ3Shaders();
1903         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
1904         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1905         while (entry != NULL)
1906         {
1907                 if (strcasecmp (entry->shader.name, name) == 0)
1908                         return &entry->shader;
1909                 entry = entry->chain;
1910         }
1911         return NULL;
1912 }
1913
1914 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
1915 {
1916         int j;
1917         int texflagsmask;
1918         qboolean success = true;
1919         q3shaderinfo_t *shader;
1920         if (!name)
1921                 name = "";
1922         strlcpy(texture->name, name, sizeof(texture->name));
1923         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
1924
1925         texflagsmask = ~0;
1926         if(!(defaulttexflags & TEXF_PICMIP))
1927                 texflagsmask &= ~TEXF_PICMIP;
1928         if(!(defaulttexflags & TEXF_COMPRESS))
1929                 texflagsmask &= ~TEXF_COMPRESS;
1930         texture->specularpowermod = 1; // unless later loaded from the shader
1931
1932         if (shader)
1933         {
1934                 if (developer_loading.integer)
1935                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
1936                 texture->surfaceparms = shader->surfaceparms;
1937
1938                 // allow disabling of picmip or compression by defaulttexflags
1939                 texture->textureflags = shader->textureflags & texflagsmask;
1940
1941                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
1942                 {
1943                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1944                         if (shader->skyboxname[0])
1945                         {
1946                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
1947                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
1948                         }
1949                 }
1950                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
1951                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1952                 else
1953                         texture->basematerialflags = MATERIALFLAG_WALL;
1954
1955                 if (shader->layers[0].alphatest)
1956                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1957                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1958                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
1959                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
1960                         texture->biaspolygonoffset -= 2;
1961                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
1962                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
1963                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
1964                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
1965                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
1966                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
1967                 texture->customblendfunc[0] = GL_ONE;
1968                 texture->customblendfunc[1] = GL_ZERO;
1969                 if (shader->numlayers > 0)
1970                 {
1971                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
1972                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
1973 /*
1974 Q3 shader blendfuncs actually used in the game (* = supported by DP)
1975 * additive               GL_ONE GL_ONE
1976 additive weird         GL_ONE GL_SRC_ALPHA
1977 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
1978 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
1979 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
1980 brighten               GL_DST_COLOR GL_ONE
1981 brighten               GL_ONE GL_SRC_COLOR
1982 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
1983 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
1984 * modulate               GL_DST_COLOR GL_ZERO
1985 * modulate               GL_ZERO GL_SRC_COLOR
1986 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
1987 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
1988 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
1989 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
1990 * no blend               GL_ONE GL_ZERO
1991 nothing                GL_ZERO GL_ONE
1992 */
1993                         // if not opaque, figure out what blendfunc to use
1994                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
1995                         {
1996                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
1997                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1998                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
1999                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2000                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2001                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2002                                 else
2003                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2004                         }
2005                 }
2006                 if (!shader->lighting)
2007                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2008                 if (shader->primarylayer >= 0)
2009                 {
2010                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2011                         // copy over many primarylayer parameters
2012                         texture->rgbgen = primarylayer->rgbgen;
2013                         texture->alphagen = primarylayer->alphagen;
2014                         texture->tcgen = primarylayer->tcgen;
2015                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2016                         // load the textures
2017                         texture->numskinframes = primarylayer->numframes;
2018                         texture->skinframerate = primarylayer->framerate;
2019                         for (j = 0;j < primarylayer->numframes;j++)
2020                         {
2021                                 if(cls.state == ca_dedicated)
2022                                 {
2023                                         texture->skinframes[j] = NULL;
2024                                 }
2025                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], primarylayer->texflags & texflagsmask, false)))
2026                                 {
2027                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (frame %i) for shader ^2\"%s\"\n", loadmodel->name, primarylayer->texturename[j], j, texture->name);
2028                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2029                                 }
2030                         }
2031                 }
2032                 if (shader->backgroundlayer >= 0)
2033                 {
2034                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2035                         // copy over one secondarylayer parameter
2036                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2037                         // load the textures
2038                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2039                         texture->backgroundskinframerate = backgroundlayer->framerate;
2040                         for (j = 0;j < backgroundlayer->numframes;j++)
2041                         {
2042                                 if(cls.state == ca_dedicated)
2043                                 {
2044                                         texture->skinframes[j] = NULL;
2045                                 }
2046                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], backgroundlayer->texflags & texflagsmask, false)))
2047                                 {
2048                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (background frame %i) for shader ^2\"%s\"\n", loadmodel->name, backgroundlayer->texturename[j], j, texture->name);
2049                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2050                                 }
2051                         }
2052                 }
2053                 if (shader->dpshadow)
2054                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2055                 if (shader->dpnoshadow)
2056                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2057                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2058                 texture->reflectmin = shader->reflectmin;
2059                 texture->reflectmax = shader->reflectmax;
2060                 texture->refractfactor = shader->refractfactor;
2061                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2062                 texture->reflectfactor = shader->reflectfactor;
2063                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2064                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2065                 texture->specularpowermod = shader->specularpowermod;
2066         }
2067         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2068         {
2069                 if (developer.integer >= 100)
2070                         Con_Printf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2071                 texture->surfaceparms = 0;
2072         }
2073         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2074         {
2075                 if (developer.integer >= 100)
2076                         Con_Printf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2077                 texture->surfaceparms = 0;
2078                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2079         }
2080         else
2081         {
2082                 if (developer.integer >= 100)
2083                         Con_Printf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2084                 texture->surfaceparms = 0;
2085                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2086                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2087                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2088                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2089                 else
2090                         texture->basematerialflags |= MATERIALFLAG_WALL;
2091                 texture->numskinframes = 1;
2092                 if(cls.state == ca_dedicated)
2093                 {
2094                         texture->skinframes[0] = NULL;
2095                 }
2096                 else
2097                 {
2098                         if (fallback)
2099                         {
2100                                 qboolean has_alpha;
2101                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal_CheckAlpha(texture->name, defaulttexflags, false, &has_alpha)))
2102                                 {
2103                                         if(has_alpha && (defaulttexflags & TEXF_ALPHA))
2104                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2105                                 }
2106                                 else
2107                                         success = false;
2108                         }
2109                         else
2110                                 success = false;
2111                         if (!success && warnmissing)
2112                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2113                 }
2114         }
2115         // init the animation variables
2116         texture->currentframe = texture;
2117         if (texture->numskinframes < 1)
2118                 texture->numskinframes = 1;
2119         if (!texture->skinframes[0])
2120                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2121         texture->currentskinframe = texture->skinframes[0];
2122         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2123         return success;
2124 }
2125
2126 skinfile_t *Mod_LoadSkinFiles(void)
2127 {
2128         int i, words, line, wordsoverflow;
2129         char *text;
2130         const char *data;
2131         skinfile_t *skinfile = NULL, *first = NULL;
2132         skinfileitem_t *skinfileitem;
2133         char word[10][MAX_QPATH];
2134
2135 /*
2136 sample file:
2137 U_bodyBox,models/players/Legoman/BikerA2.tga
2138 U_RArm,models/players/Legoman/BikerA1.tga
2139 U_LArm,models/players/Legoman/BikerA1.tga
2140 U_armor,common/nodraw
2141 U_sword,common/nodraw
2142 U_shield,common/nodraw
2143 U_homb,common/nodraw
2144 U_backpack,common/nodraw
2145 U_colcha,common/nodraw
2146 tag_head,
2147 tag_weapon,
2148 tag_torso,
2149 */
2150         memset(word, 0, sizeof(word));
2151         for (i = 0;i < MAX_SKINS && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2152         {
2153                 // If it's the first file we parse
2154                 if (skinfile == NULL)
2155                 {
2156                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2157                         first = skinfile;
2158                 }
2159                 else
2160                 {
2161                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2162                         skinfile = skinfile->next;
2163                 }
2164                 skinfile->next = NULL;
2165
2166                 for(line = 0;;line++)
2167                 {
2168                         // parse line
2169                         if (!COM_ParseToken_QuakeC(&data, true))
2170                                 break;
2171                         if (!strcmp(com_token, "\n"))
2172                                 continue;
2173                         words = 0;
2174                         wordsoverflow = false;
2175                         do
2176                         {
2177                                 if (words < 10)
2178                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2179                                 else
2180                                         wordsoverflow = true;
2181                         }
2182                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2183                         if (wordsoverflow)
2184                         {
2185                                 Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: line with too many statements, skipping\n", loadmodel->name, i, line);
2186                                 continue;
2187                         }
2188                         // words is always >= 1
2189                         if (!strcmp(word[0], "replace"))
2190                         {
2191                                 if (words == 3)
2192                                 {
2193                                         if (developer_loading.integer)
2194                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2195                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2196                                         skinfileitem->next = skinfile->items;
2197                                         skinfile->items = skinfileitem;
2198                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2199                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2200                                 }
2201                                 else
2202                                         Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: wrong number of parameters to command \"%s\", see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line, word[0]);
2203                         }
2204                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2205                         {
2206                                 // tag name, like "tag_weapon,"
2207                                 // not used for anything (not even in Quake3)
2208                         }
2209                         else if (words >= 2 && !strcmp(word[1], ","))
2210                         {
2211                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2212                                 if (developer_loading.integer)
2213                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2214                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2215                                 skinfileitem->next = skinfile->items;
2216                                 skinfile->items = skinfileitem;
2217                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2218                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2219                         }
2220                         else
2221                                 Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: does not look like tag or mesh specification, or replace command, see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line);
2222                 }
2223                 Mem_Free(text);
2224         }
2225         if (i)
2226                 loadmodel->numskins = i;
2227         return first;
2228 }
2229
2230 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2231 {
2232         skinfile_t *next;
2233         skinfileitem_t *skinfileitem, *nextitem;
2234         for (;skinfile;skinfile = next)
2235         {
2236                 next = skinfile->next;
2237                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2238                 {
2239                         nextitem = skinfileitem->next;
2240                         Mem_Free(skinfileitem);
2241                 }
2242                 Mem_Free(skinfile);
2243         }
2244 }
2245
2246 int Mod_CountSkinFiles(skinfile_t *skinfile)
2247 {
2248         int i;
2249         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2250         return i;
2251 }
2252
2253 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2254 {
2255         int i;
2256         double isnap = 1.0 / snap;
2257         for (i = 0;i < numvertices*numcomponents;i++)
2258                 vertices[i] = floor(vertices[i]*isnap)*snap;
2259 }
2260
2261 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2262 {
2263         int i, outtriangles;
2264         float edgedir1[3], edgedir2[3], temp[3];
2265         // a degenerate triangle is one with no width (thickness, surface area)
2266         // these are characterized by having all 3 points colinear (along a line)
2267         // or having two points identical
2268         // the simplest check is to calculate the triangle's area
2269         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2270         {
2271                 // calculate first edge
2272                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2273                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2274                 CrossProduct(edgedir1, edgedir2, temp);
2275                 if (VectorLength2(temp) < 0.001f)
2276                         continue; // degenerate triangle (no area)
2277                 // valid triangle (has area)
2278                 VectorCopy(inelement3i, outelement3i);
2279                 outelement3i += 3;
2280                 outtriangles++;
2281         }
2282         return outtriangles;
2283 }
2284
2285 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2286 {
2287         int i, e;
2288         int firstvertex, lastvertex;
2289         if (numelements > 0 && elements)
2290         {
2291                 firstvertex = lastvertex = elements[0];
2292                 for (i = 1;i < numelements;i++)
2293                 {
2294                         e = elements[i];
2295                         firstvertex = min(firstvertex, e);
2296                         lastvertex = max(lastvertex, e);
2297                 }
2298         }
2299         else
2300                 firstvertex = lastvertex = 0;
2301         if (firstvertexpointer)
2302                 *firstvertexpointer = firstvertex;
2303         if (lastvertexpointer)
2304                 *lastvertexpointer = lastvertex;
2305 }
2306
2307 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2308 {
2309         // make an optimal set of texture-sorted batches to draw...
2310         int j, t;
2311         int *firstsurfacefortexture;
2312         int *numsurfacesfortexture;
2313         if (!mod->sortedmodelsurfaces)
2314                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2315         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2316         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2317         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2318         for (j = 0;j < mod->nummodelsurfaces;j++)
2319         {
2320                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2321                 int t = (int)(surface->texture - mod->data_textures);
2322                 numsurfacesfortexture[t]++;
2323         }
2324         j = 0;
2325         for (t = 0;t < mod->num_textures;t++)
2326         {
2327                 firstsurfacefortexture[t] = j;
2328                 j += numsurfacesfortexture[t];
2329         }
2330         for (j = 0;j < mod->nummodelsurfaces;j++)
2331         {
2332                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2333                 int t = (int)(surface->texture - mod->data_textures);
2334                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2335         }
2336         Mem_Free(firstsurfacefortexture);
2337         Mem_Free(numsurfacesfortexture);
2338 }
2339
2340 static void Mod_BuildVBOs(void)
2341 {
2342         if (!gl_support_arb_vertex_buffer_object)
2343                 return;
2344
2345         // element buffer is easy because it's just one array
2346         if (loadmodel->surfmesh.num_triangles)
2347         {
2348                 if (loadmodel->surfmesh.data_element3s)
2349                 {
2350                         int i;
2351                         for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2352                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2353                         loadmodel->surfmesh.ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]), loadmodel->name);
2354                 }
2355                 else
2356                         loadmodel->surfmesh.ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(unsigned int[3]), loadmodel->name);
2357         }
2358
2359         // vertex buffer is several arrays and we put them in the same buffer
2360         //
2361         // is this wise?  the texcoordtexture2f array is used with dynamic
2362         // vertex/svector/tvector/normal when rendering animated models, on the
2363         // other hand animated models don't use a lot of vertices anyway...
2364         if (loadmodel->surfmesh.num_vertices)
2365         {
2366                 size_t size;
2367                 unsigned char *mem;
2368                 size = 0;
2369                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2370                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2371                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2372                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2373                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2374                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2375                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2376                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2377                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2378                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2379                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2380                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2381                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2382                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2383                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2384                 loadmodel->surfmesh.vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, loadmodel->name);
2385                 Mem_Free(mem);
2386         }
2387 }
2388
2389 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
2390 {
2391         int vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
2392         int a, b, c;
2393         const char *texname;
2394         const int *e;
2395         const float *v, *vn, *vt;
2396         size_t l;
2397         size_t outbufferpos = 0;
2398         size_t outbuffermax = 0x100000;
2399         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2400         const msurface_t *surface;
2401         const int maxtextures = 256;
2402         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
2403
2404         // construct the mtllib file
2405         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
2406         if (l > 0)
2407                 outbufferpos += l;
2408         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2409         {
2410                 countsurfaces++;
2411                 countvertices += surface->num_vertices;
2412                 countfaces += surface->num_triangles;
2413                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
2414                 for (textureindex = 0;textureindex < maxtextures && texturenames[textureindex*MAX_QPATH];textureindex++)
2415                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
2416                                 break;
2417                 if (textureindex >= maxtextures)
2418                         continue; // just a precaution
2419                 if (counttextures < textureindex + 1)
2420                         counttextures = textureindex + 1;
2421                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
2422                 if (outbufferpos >= outbuffermax >> 1)
2423                 {
2424                         outbuffermax *= 2;
2425                         oldbuffer = outbuffer;
2426                         outbuffer = (char *) Z_Malloc(outbuffermax);
2427                         memcpy(outbuffer, oldbuffer, outbufferpos);
2428                         Z_Free(oldbuffer);
2429                 }
2430                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "newmtl %s\nNs 96.078431\nKa 0 0 0\nKd 0.64 0.64 0.64\nKs 0.5 0.5 0.5\nNi 1\nd 1\nillum 2\nmap_Kd %s%s\n\n", texname, texname, strstr(texname, ".tga") ? "" : ".tga");
2431                 if (l > 0)
2432                         outbufferpos += l;
2433         }
2434
2435         // write the mtllib file
2436         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
2437         outbufferpos = 0;
2438
2439         // construct the obj file
2440         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# model exported from %s by darkplaces engine\n# %i vertices, %i faces, %i surfaces\nmtllib %s\n", originalfilename, countvertices, countfaces, countsurfaces, mtlfilename);
2441         if (l > 0)
2442                 outbufferpos += l;
2443         for (vertexindex = 0, v = model->surfmesh.data_vertex3f, vn = model->surfmesh.data_normal3f, vt = model->surfmesh.data_texcoordtexture2f;vertexindex < model->surfmesh.num_vertices;vertexindex++, v += 3, vn += 3, vt += 2)
2444         {
2445                 if (outbufferpos >= outbuffermax >> 1)
2446                 {
2447                         outbuffermax *= 2;
2448                         oldbuffer = outbuffer;
2449                         outbuffer = (char *) Z_Malloc(outbuffermax);
2450                         memcpy(outbuffer, oldbuffer, outbufferpos);
2451                         Z_Free(oldbuffer);
2452                 }
2453                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "v %f %f %f\nvn %f %f %f\nvt %f %f\n", v[0], v[2], -v[1], vn[0], vn[2], -vn[1], vt[0], 1-vt[1]);
2454                 if (l > 0)
2455                         outbufferpos += l;
2456         }
2457         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2458         {
2459                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
2460                 if (l > 0)
2461                         outbufferpos += l;
2462                 for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2463                 {
2464                         if (outbufferpos >= outbuffermax >> 1)
2465                         {
2466                                 outbuffermax *= 2;
2467                                 oldbuffer = outbuffer;
2468                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2469                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2470                                 Z_Free(oldbuffer);
2471                         }
2472                         a = e[0]+1;
2473                         b = e[2]+1;
2474                         c = e[1]+1;
2475                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "f %i/%i/%i %i/%i/%i %i/%i/%i\n", a,a,a,b,b,b,c,c,c);
2476                         if (l > 0)
2477                                 outbufferpos += l;
2478                 }
2479         }
2480
2481         // write the obj file
2482         FS_WriteFile(filename, outbuffer, outbufferpos);
2483
2484         // clean up
2485         Z_Free(outbuffer);
2486         Z_Free(texturenames);
2487
2488         // print some stats
2489         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
2490 }
2491
2492 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
2493 {
2494         int countnodes = 0, counttriangles = 0, countframes = 0;
2495         int surfaceindex;
2496         int triangleindex;
2497         int transformindex;
2498         int poseindex;
2499         int cornerindex;
2500         float modelscale;
2501         const int *e;
2502         const float *pose;
2503         size_t l;
2504         size_t outbufferpos = 0;
2505         size_t outbuffermax = 0x100000;
2506         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2507         const msurface_t *surface;
2508         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
2509         if (l > 0)
2510                 outbufferpos += l;
2511         modelscale = 1;
2512         if(model->num_poses >= 0)
2513                 modelscale = sqrt(model->data_poses[0] * model->data_poses[0] + model->data_poses[1] * model->data_poses[1] + model->data_poses[2] * model->data_poses[2]);
2514         if(fabs(modelscale - 1) > 1e-4)
2515         {
2516                 if(firstpose == 0) // only print the when writing the reference pose
2517                         Con_Printf("The model has an old-style model scale of %f\n", modelscale);
2518         }
2519         else
2520                 modelscale = 1;
2521         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
2522         {
2523                 if (outbufferpos >= outbuffermax >> 1)
2524                 {
2525                         outbuffermax *= 2;
2526                         oldbuffer = outbuffer;
2527                         outbuffer = (char *) Z_Malloc(outbuffermax);
2528                         memcpy(outbuffer, oldbuffer, outbufferpos);
2529                         Z_Free(oldbuffer);
2530                 }
2531                 countnodes++;
2532                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
2533                 if (l > 0)
2534                         outbufferpos += l;
2535         }
2536         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
2537         if (l > 0)
2538                 outbufferpos += l;
2539         for (poseindex = 0, pose = model->data_poses + model->num_bones * 12 * firstpose;poseindex < numposes;poseindex++)
2540         {
2541                 countframes++;
2542                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
2543                 if (l > 0)
2544                         outbufferpos += l;
2545                 for (transformindex = 0;transformindex < model->num_bones;transformindex++, pose += 12)
2546                 {
2547                         float a, b, c;
2548                         float angles[3];
2549                         float mtest[3][4];
2550                         if (outbufferpos >= outbuffermax >> 1)
2551                         {
2552                                 outbuffermax *= 2;
2553                                 oldbuffer = outbuffer;
2554                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2555                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2556                                 Z_Free(oldbuffer);
2557                         }
2558
2559                         // strangely the smd angles are for a transposed matrix, so we
2560                         // have to generate a transposed matrix, then convert that...
2561                         mtest[0][0] = pose[ 0];
2562                         mtest[0][1] = pose[ 4];
2563                         mtest[0][2] = pose[ 8];
2564                         mtest[0][3] = pose[ 3];
2565                         mtest[1][0] = pose[ 1];
2566                         mtest[1][1] = pose[ 5];
2567                         mtest[1][2] = pose[ 9];
2568                         mtest[1][3] = pose[ 7];
2569                         mtest[2][0] = pose[ 2];
2570                         mtest[2][1] = pose[ 6];
2571                         mtest[2][2] = pose[10];
2572                         mtest[2][3] = pose[11];
2573                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
2574                         if (angles[0] >= 180) angles[0] -= 360;
2575                         if (angles[1] >= 180) angles[1] -= 360;
2576                         if (angles[2] >= 180) angles[2] -= 360;
2577
2578                         a = DEG2RAD(angles[ROLL]);
2579                         b = DEG2RAD(angles[PITCH]);
2580                         c = DEG2RAD(angles[YAW]);
2581
2582 #if 0
2583 {
2584                         float cy, sy, cp, sp, cr, sr;
2585                         float test[3][4];
2586                         // smd matrix construction, for comparing to non-transposed m
2587                         sy = sin(c);
2588                         cy = cos(c);
2589                         sp = sin(b);
2590                         cp = cos(b);
2591                         sr = sin(a);
2592                         cr = cos(a);
2593
2594                         test[0][0] = cp*cy;
2595                         test[1][0] = cp*sy;
2596                         test[2][0] = -sp;
2597                         test[0][1] = sr*sp*cy+cr*-sy;
2598                         test[1][1] = sr*sp*sy+cr*cy;
2599                         test[2][1] = sr*cp;
2600                         test[0][2] = (cr*sp*cy+-sr*-sy);
2601                         test[1][2] = (cr*sp*sy+-sr*cy);
2602                         test[2][2] = cr*cp;
2603                         test[0][3] = pose[3];
2604                         test[1][3] = pose[7];
2605                         test[2][3] = pose[11];
2606 }
2607 #endif
2608                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f\n", transformindex, pose[3] * modelscale, pose[7] * modelscale, pose[11] * modelscale, DEG2RAD(angles[ROLL]), DEG2RAD(angles[PITCH]), DEG2RAD(angles[YAW]));
2609                         if (l > 0)
2610                                 outbufferpos += l;
2611                 }
2612         }
2613         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2614         if (l > 0)
2615                 outbufferpos += l;
2616         if (writetriangles)
2617         {
2618                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
2619                 if (l > 0)
2620                         outbufferpos += l;
2621                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2622                 {
2623                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2624                         {
2625                                 counttriangles++;
2626                                 if (outbufferpos >= outbuffermax >> 1)
2627                                 {
2628                                         outbuffermax *= 2;
2629                                         oldbuffer = outbuffer;
2630                                         outbuffer = (char *) Z_Malloc(outbuffermax);
2631                                         memcpy(outbuffer, oldbuffer, outbufferpos);
2632                                         Z_Free(oldbuffer);
2633                                 }
2634                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
2635                                 if (l > 0)
2636                                         outbufferpos += l;
2637                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
2638                                 {
2639                                         const int index = e[2-cornerindex];
2640                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
2641                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
2642                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
2643                                         const int *wi = model->surfmesh.data_vertexweightindex4i + index * 4;
2644                                         const float *wf = model->surfmesh.data_vertexweightinfluence4f + index * 4;
2645                                              if (wf[3]) l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f 4 %i %f %i %f %i %f %i %f\n", wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1], wi[0], wf[0], wi[1], wf[1], wi[2], wf[2], wi[3], wf[3]);
2646                                         else if (wf[2]) l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f 3 %i %f %i %f %i %f\n"      , wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1], wi[0], wf[0], wi[1], wf[1], wi[2], wf[2]);
2647                                         else if (wf[1]) l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f 2 %i %f %i %f\n"            , wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1], wi[0], wf[0], wi[1], wf[1]);
2648                                         else            l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f\n"                          , wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1]);
2649                                         if (l > 0)
2650                                                 outbufferpos += l;
2651                                 }
2652                         }
2653                 }
2654                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2655                 if (l > 0)
2656                         outbufferpos += l;
2657         }
2658
2659         FS_WriteFile(filename, outbuffer, outbufferpos);
2660         Z_Free(outbuffer);
2661
2662         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
2663 }
2664
2665 /*
2666 ================
2667 Mod_Decompile_f
2668
2669 decompiles a model to editable files
2670 ================
2671 */
2672 static void Mod_Decompile_f(void)
2673 {
2674         int i, j, k, l, first, count;
2675         dp_model_t *mod;
2676         char inname[MAX_QPATH];
2677         char outname[MAX_QPATH];
2678         char mtlname[MAX_QPATH];
2679         char basename[MAX_QPATH];
2680         char animname[MAX_QPATH];
2681         char animname2[MAX_QPATH];
2682         char zymtextbuffer[16384];
2683         char dpmtextbuffer[16384];
2684         int zymtextsize = 0;
2685         int dpmtextsize = 0;
2686
2687         if (Cmd_Argc() != 2)
2688         {
2689                 Con_Print("usage: modeldecompile <filename>\n");
2690                 return;
2691         }
2692
2693         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
2694         FS_StripExtension(inname, basename, sizeof(basename));
2695
2696         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
2697         if (mod->brush.submodel)
2698         {
2699                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
2700                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
2701                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
2702                 outname[0] = 0;
2703         }
2704         if (!mod)
2705         {
2706                 Con_Print("No such model\n");
2707                 return;
2708         }
2709         if (!mod->surfmesh.num_triangles)
2710         {
2711                 Con_Print("Empty model (or sprite)\n");
2712                 return;
2713         }
2714
2715         // export OBJ if possible (not on sprites)
2716         if (mod->surfmesh.num_triangles)
2717         {
2718                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
2719                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
2720                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
2721         }
2722
2723         // export SMD if possible (only for skeletal models)
2724         if (mod->surfmesh.num_triangles && mod->num_bones)
2725         {
2726                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
2727                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
2728                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
2729                 if (l > 0) zymtextsize += l;
2730                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
2731                 if (l > 0) dpmtextsize += l;
2732                 for (i = 0;i < mod->numframes;i = j)
2733                 {
2734                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
2735                         first = mod->animscenes[i].firstframe;
2736                         if (mod->animscenes[i].framecount > 1)
2737                         {
2738                                 // framegroup anim
2739                                 count = mod->animscenes[i].framecount;
2740                                 j = i + 1;
2741                         }
2742                         else
2743                         {
2744                                 // individual frame
2745                                 // check for additional frames with same name
2746                                 for (l = 0, k = strlen(animname);animname[l];l++)
2747                                         if ((animname[l] < '0' || animname[l] > '9') && animname[l] != '_')
2748                                                 k = l + 1;
2749                                 animname[k] = 0;
2750                                 count = mod->num_poses - first;
2751                                 for (j = i + 1;j < mod->numframes;j++)
2752                                 {
2753                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
2754                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
2755                                                 if ((animname2[l] < '0' || animname2[l] > '9') && animname2[l] != '_')
2756                                                         k = l + 1;
2757                                         animname2[k] = 0;
2758                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
2759                                         {
2760                                                 count = mod->animscenes[j].firstframe - first;
2761                                                 break;
2762                                         }
2763                                 }
2764                                 // if it's only one frame, use the original frame name
2765                                 if (j == i + 1)
2766                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
2767
2768                         }
2769                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
2770                         Mod_Decompile_SMD(mod, outname, first, count, false);
2771                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
2772                         {
2773                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g\n", animname, mod->animscenes[i].framerate);
2774                                 if (l > 0) zymtextsize += l;
2775                         }
2776                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
2777                         {
2778                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd\n", animname);
2779                                 if (l > 0) dpmtextsize += l;
2780                         }
2781                 }
2782                 if (zymtextsize)
2783                         FS_WriteFile(va("%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
2784                 if (dpmtextsize)
2785                         FS_WriteFile(va("%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
2786         }
2787 }
2788