model_brush.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
  21 #include "quakedef.h"
  22 #include "image.h"
  23 #include "r_shadow.h"
  24 #include "polygon.h"
  25 #include "curves.h"
  26 #include "wad.h"
  27
  28
  29 //cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
  30 cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
  31 cvar_t mcbsp = {0, "mcbsp", "0", "indicates the current map is mcbsp format (useful to know because of different bounding box sizes)"};
  32 cvar_t r_novis = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
  33 cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1", "whether to use RGBA (32bit) or RGB (24bit) lightmaps"};
  34 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
  35 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
  36 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
  37 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
  38 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
  39 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
  40 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
  41 cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
  42 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
  43 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
  44 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
  45 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
  46
  47 static texture_t mod_q1bsp_texture_solid;
  48 static texture_t mod_q1bsp_texture_sky;
  49 static texture_t mod_q1bsp_texture_lava;
  50 static texture_t mod_q1bsp_texture_slime;
  51 static texture_t mod_q1bsp_texture_water;
  52
  53 void Mod_BrushInit(void)
  54 {
  55 //      Cvar_RegisterVariable(&r_subdivide_size);
  56         Cvar_RegisterVariable(&halflifebsp);
  57         Cvar_RegisterVariable(&mcbsp);
  58         Cvar_RegisterVariable(&r_novis);
  59         Cvar_RegisterVariable(&r_lightmaprgba);
  60         Cvar_RegisterVariable(&r_nosurftextures);
  61         Cvar_RegisterVariable(&r_subdivisions_tolerance);
  62         Cvar_RegisterVariable(&r_subdivisions_mintess);
  63         Cvar_RegisterVariable(&r_subdivisions_maxtess);
  64         Cvar_RegisterVariable(&r_subdivisions_maxvertices);
  65         Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
  66         Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
  67         Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
  68         Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
  69         Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
  70         Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
  71         Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
  72
  73         memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
  74         strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
  75         mod_q1bsp_texture_solid.surfaceflags = 0;
  76         mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
  77
  78         mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
  79         strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
  80         mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
  81         mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
  82
  83         mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
  84         strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
  85         mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
  86         mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
  87
  88         mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
  89         strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
  90         mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
  91         mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
  92
  93         mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
  94         strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
  95         mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
  96         mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
  97 }
  98
  99 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
 100 {
 101         mnode_t *node;
 102
 103         if (model == NULL)
 104                 return NULL;
 105
 106         // LordHavoc: modified to start at first clip node,
 107         // in other words: first node of the (sub)model
 108         node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
 109         while (node->plane)
 110                 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
 111
 112         return (mleaf_t *)node;
 113 }
 114
 115 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
 116 {
 117         int i;
 118         mleaf_t *leaf;
 119         leaf = Mod_Q1BSP_PointInLeaf(model, p);
 120         if (leaf)
 121         {
 122                 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
 123                 if (i)
 124                 {
 125                         memcpy(out, leaf->ambient_sound_level, i);
 126                         out += i;
 127                         outsize -= i;
 128                 }
 129         }
 130         if (outsize)
 131                 memset(out, 0, outsize);
 132 }
 133
 134 static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
 135 {
 136         int numclusters = 0;
 137         int nodestackindex = 0;
 138         mnode_t *node, *nodestack[1024];
 139         if (!model->brush.num_pvsclusters)
 140                 return -1;
 141         node = model->brush.data_nodes;
 142         for (;;)
 143         {
 144 #if 1
 145                 if (node->plane)
 146                 {
 147                         // node - recurse down the BSP tree
 148                         int sides = BoxOnPlaneSide(mins, maxs, node->plane);
 149                         if (sides < 3)
 150                         {
 151                                 if (sides == 0)
 152                                         return -1; // ERROR: NAN bounding box!
 153                                 // box is on one side of plane, take that path
 154                                 node = node->children[sides-1];
 155                         }
 156                         else
 157                         {
 158                                 // box crosses plane, take one path and remember the other
 159                                 if (nodestackindex < 1024)
 160                                         nodestack[nodestackindex++] = node->children[0];
 161                                 node = node->children[1];
 162                         }
 163                         continue;
 164                 }
 165                 else
 166                 {
 167                         // leaf - add clusterindex to list
 168                         if (numclusters < maxclusters)
 169                                 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
 170                         numclusters++;
 171                 }
 172 #else
 173                 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
 174                 {
 175                         if (node->plane)
 176                         {
 177                                 if (nodestackindex < 1024)
 178                                         nodestack[nodestackindex++] = node->children[0];
 179                                 node = node->children[1];
 180                                 continue;
 181                         }
 182                         else
 183                         {
 184                                 // leaf - add clusterindex to list
 185                                 if (numclusters < maxclusters)
 186                                         clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
 187                                 numclusters++;
 188                         }
 189                 }
 190 #endif
 191                 // try another path we didn't take earlier
 192                 if (nodestackindex == 0)
 193                         break;
 194                 node = nodestack[--nodestackindex];
 195         }
 196         // return number of clusters found (even if more than the maxclusters)
 197         return numclusters;
 198 }
 199
 200 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
 201 {
 202         int nodestackindex = 0;
 203         mnode_t *node, *nodestack[1024];
 204         if (!model->brush.num_pvsclusters)
 205                 return true;
 206         node = model->brush.data_nodes;
 207         for (;;)
 208         {
 209 #if 1
 210                 if (node->plane)
 211                 {
 212                         // node - recurse down the BSP tree
 213                         int sides = BoxOnPlaneSide(mins, maxs, node->plane);
 214                         if (sides < 3)
 215                         {
 216                                 if (sides == 0)
 217                                         return -1; // ERROR: NAN bounding box!
 218                                 // box is on one side of plane, take that path
 219                                 node = node->children[sides-1];
 220                         }
 221                         else
 222                         {
 223                                 // box crosses plane, take one path and remember the other
 224                                 if (nodestackindex < 1024)
 225                                         nodestack[nodestackindex++] = node->children[0];
 226                                 node = node->children[1];
 227                         }
 228                         continue;
 229                 }
 230                 else
 231                 {
 232                         // leaf - check cluster bit
 233                         int clusterindex = ((mleaf_t *)node)->clusterindex;
 234                         if (CHECKPVSBIT(pvs, clusterindex))
 235                         {
 236                                 // it is visible, return immediately with the news
 237                                 return true;
 238                         }
 239                 }
 240 #else
 241                 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
 242                 {
 243                         if (node->plane)
 244                         {
 245                                 if (nodestackindex < 1024)
 246                                         nodestack[nodestackindex++] = node->children[0];
 247                                 node = node->children[1];
 248                                 continue;
 249                         }
 250                         else
 251                         {
 252                                 // leaf - check cluster bit
 253                                 int clusterindex = ((mleaf_t *)node)->clusterindex;
 254                                 if (CHECKPVSBIT(pvs, clusterindex))
 255                                 {
 256                                         // it is visible, return immediately with the news
 257                                         return true;
 258                                 }
 259                         }
 260                 }
 261 #endif
 262                 // nothing to see here, try another path we didn't take earlier
 263                 if (nodestackindex == 0)
 264                         break;
 265                 node = nodestack[--nodestackindex];
 266         }
 267         // it is not visible
 268         return false;
 269 }
 270
 271 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
 272 {
 273         int nodestackindex = 0;
 274         mnode_t *node, *nodestack[1024];
 275         if (!model->brush.num_leafs)
 276                 return true;
 277         node = model->brush.data_nodes;
 278         for (;;)
 279         {
 280 #if 1
 281                 if (node->plane)
 282                 {
 283                         // node - recurse down the BSP tree
 284                         int sides = BoxOnPlaneSide(mins, maxs, node->plane);
 285                         if (sides < 3)
 286                         {
 287                                 if (sides == 0)
 288                                         return -1; // ERROR: NAN bounding box!
 289                                 // box is on one side of plane, take that path
 290                                 node = node->children[sides-1];
 291                         }
 292                         else
 293                         {
 294                                 // box crosses plane, take one path and remember the other
 295                                 if (nodestackindex < 1024)
 296                                         nodestack[nodestackindex++] = node->children[0];
 297                                 node = node->children[1];
 298                         }
 299                         continue;
 300                 }
 301                 else
 302                 {
 303                         // leaf - check cluster bit
 304                         int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
 305                         if (CHECKPVSBIT(pvs, clusterindex))
 306                         {
 307                                 // it is visible, return immediately with the news
 308                                 return true;
 309                         }
 310                 }
 311 #else
 312                 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
 313                 {
 314                         if (node->plane)
 315                         {
 316                                 if (nodestackindex < 1024)
 317                                         nodestack[nodestackindex++] = node->children[0];
 318                                 node = node->children[1];
 319                                 continue;
 320                         }
 321                         else
 322                         {
 323                                 // leaf - check cluster bit
 324                                 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
 325                                 if (CHECKPVSBIT(pvs, clusterindex))
 326                                 {
 327                                         // it is visible, return immediately with the news
 328                                         return true;
 329                                 }
 330                         }
 331                 }
 332 #endif
 333                 // nothing to see here, try another path we didn't take earlier
 334                 if (nodestackindex == 0)
 335                         break;
 336                 node = nodestack[--nodestackindex];
 337         }
 338         // it is not visible
 339         return false;
 340 }
 341
 342 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
 343 {
 344         int nodestackindex = 0;
 345         mnode_t *node, *nodestack[1024];
 346         if (!model->brush.num_leafs)
 347                 return true;
 348         node = model->brush.data_nodes;
 349         for (;;)
 350         {
 351 #if 1
 352                 if (node->plane)
 353                 {
 354                         // node - recurse down the BSP tree
 355                         int sides = BoxOnPlaneSide(mins, maxs, node->plane);
 356                         if (sides < 3)
 357                         {
 358                                 if (sides == 0)
 359                                         return -1; // ERROR: NAN bounding box!
 360                                 // box is on one side of plane, take that path
 361                                 node = node->children[sides-1];
 362                         }
 363                         else
 364                         {
 365                                 // box crosses plane, take one path and remember the other
 366                                 if (nodestackindex < 1024)
 367                                         nodestack[nodestackindex++] = node->children[0];
 368                                 node = node->children[1];
 369                         }
 370                         continue;
 371                 }
 372                 else
 373                 {
 374                         // leaf - check if it is visible
 375                         if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
 376                         {
 377                                 // it is visible, return immediately with the news
 378                                 return true;
 379                         }
 380                 }
 381 #else
 382                 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
 383                 {
 384                         if (node->plane)
 385                         {
 386                                 if (nodestackindex < 1024)
 387                                         nodestack[nodestackindex++] = node->children[0];
 388                                 node = node->children[1];
 389                                 continue;
 390                         }
 391                         else
 392                         {
 393                                 // leaf - check if it is visible
 394                                 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
 395                                 {
 396                                         // it is visible, return immediately with the news
 397                                         return true;
 398                                 }
 399                         }
 400                 }
 401 #endif
 402                 // nothing to see here, try another path we didn't take earlier
 403                 if (nodestackindex == 0)
 404                         break;
 405                 node = nodestack[--nodestackindex];
 406         }
 407         // it is not visible
 408         return false;
 409 }
 410
 411 typedef struct findnonsolidlocationinfo_s
 412 {
 413         vec3_t center;
 414         vec_t radius;
 415         vec3_t nudge;
 416         vec_t bestdist;
 417         model_t *model;
 418 }
 419 findnonsolidlocationinfo_t;
 420
 421 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
 422 {
 423         int i, surfacenum, k, *tri, *mark;
 424         float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
 425         msurface_t *surface;
 426         for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
 427         {
 428                 surface = info->model->data_surfaces + *mark;
 429                 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
 430                 {
 431                         for (k = 0;k < surface->num_triangles;k++)
 432                         {
 433                                 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
 434                                 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
 435                                 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
 436                                 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
 437                                 VectorSubtract(vert[1], vert[0], edge[0]);
 438                                 VectorSubtract(vert[2], vert[1], edge[1]);
 439                                 CrossProduct(edge[1], edge[0], facenormal);
 440                                 if (facenormal[0] || facenormal[1] || facenormal[2])
 441                                 {
 442                                         VectorNormalize(facenormal);
 443                                         f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
 444                                         if (f <= info->bestdist && f >= -info->bestdist)
 445                                         {
 446                                                 VectorSubtract(vert[0], vert[2], edge[2]);
 447                                                 VectorNormalize(edge[0]);
 448                                                 VectorNormalize(edge[1]);
 449                                                 VectorNormalize(edge[2]);
 450                                                 CrossProduct(facenormal, edge[0], edgenormal[0]);
 451                                                 CrossProduct(facenormal, edge[1], edgenormal[1]);
 452                                                 CrossProduct(facenormal, edge[2], edgenormal[2]);
 453                                                 // face distance
 454                                                 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
 455                                                  && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
 456                                                  && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
 457                                                 {
 458                                                         // we got lucky, the center is within the face
 459                                                         dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
 460                                                         if (dist < 0)
 461                                                         {
 462                                                                 dist = -dist;
 463                                                                 if (info->bestdist > dist)
 464                                                                 {
 465                                                                         info->bestdist = dist;
 466                                                                         VectorScale(facenormal, (info->radius - -dist), info->nudge);
 467                                                                 }
 468                                                         }
 469                                                         else
 470                                                         {
 471                                                                 if (info->bestdist > dist)
 472                                                                 {
 473                                                                         info->bestdist = dist;
 474                                                                         VectorScale(facenormal, (info->radius - dist), info->nudge);
 475                                                                 }
 476                                                         }
 477                                                 }
 478                                                 else
 479                                                 {
 480                                                         // check which edge or vertex the center is nearest
 481                                                         for (i = 0;i < 3;i++)
 482                                                         {
 483                                                                 f = DotProduct(info->center, edge[i]);
 484                                                                 if (f >= DotProduct(vert[0], edge[i])
 485                                                                  && f <= DotProduct(vert[1], edge[i]))
 486                                                                 {
 487                                                                         // on edge
 488                                                                         VectorMA(info->center, -f, edge[i], point);
 489                                                                         dist = sqrt(DotProduct(point, point));
 490                                                                         if (info->bestdist > dist)
 491                                                                         {
 492                                                                                 info->bestdist = dist;
 493                                                                                 VectorScale(point, (info->radius / dist), info->nudge);
 494                                                                         }
 495                                                                         // skip both vertex checks
 496                                                                         // (both are further away than this edge)
 497                                                                         i++;
 498                                                                 }
 499                                                                 else
 500                                                                 {
 501                                                                         // not on edge, check first vertex of edge
 502                                                                         VectorSubtract(info->center, vert[i], point);
 503                                                                         dist = sqrt(DotProduct(point, point));
 504                                                                         if (info->bestdist > dist)
 505                                                                         {
 506                                                                                 info->bestdist = dist;
 507                                                                                 VectorScale(point, (info->radius / dist), info->nudge);
 508                                                                         }
 509                                                                 }
 510                                                         }
 511                                                 }
 512                                         }
 513                                 }
 514                         }
 515                 }
 516         }
 517 }
 518
 519 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
 520 {
 521         if (node->plane)
 522         {
 523                 float f = PlaneDiff(info->center, node->plane);
 524                 if (f >= -info->bestdist)
 525                         Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
 526                 if (f <= info->bestdist)
 527                         Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
 528         }
 529         else
 530         {
 531                 if (((mleaf_t *)node)->numleafsurfaces)
 532                         Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
 533         }
 534 }
 535
 536 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
 537 {
 538         int i;
 539         findnonsolidlocationinfo_t info;
 540         if (model == NULL)
 541         {
 542                 VectorCopy(in, out);
 543                 return;
 544         }
 545         VectorCopy(in, info.center);
 546         info.radius = radius;
 547         info.model = model;
 548         i = 0;
 549         do
 550         {
 551                 VectorClear(info.nudge);
 552                 info.bestdist = radius;
 553                 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
 554                 VectorAdd(info.center, info.nudge, info.center);
 555         }
 556         while (info.bestdist < radius && ++i < 10);
 557         VectorCopy(info.center, out);
 558 }
 559
 560 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
 561 {
 562         switch(nativecontents)
 563         {
 564                 case CONTENTS_EMPTY:
 565                         return 0;
 566                 case CONTENTS_SOLID:
 567                         return SUPERCONTENTS_SOLID;
 568                 case CONTENTS_WATER:
 569                         return SUPERCONTENTS_WATER;
 570                 case CONTENTS_SLIME:
 571                         return SUPERCONTENTS_SLIME;
 572                 case CONTENTS_LAVA:
 573                         return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
 574                 case CONTENTS_SKY:
 575                         return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
 576         }
 577         return 0;
 578 }
 579
 580 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
 581 {
 582         if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
 583                 return CONTENTS_SOLID;
 584         if (supercontents & SUPERCONTENTS_SKY)
 585                 return CONTENTS_SKY;
 586         if (supercontents & SUPERCONTENTS_LAVA)
 587                 return CONTENTS_LAVA;
 588         if (supercontents & SUPERCONTENTS_SLIME)
 589                 return CONTENTS_SLIME;
 590         if (supercontents & SUPERCONTENTS_WATER)
 591                 return CONTENTS_WATER;
 592         return CONTENTS_EMPTY;
 593 }
 594
 595 typedef struct RecursiveHullCheckTraceInfo_s
 596 {
 597         // the hull we're tracing through
 598         const hull_t *hull;
 599
 600         // the trace structure to fill in
 601         trace_t *trace;
 602
 603         // start, end, and end - start (in model space)
 604         double start[3];
 605         double end[3];
 606         double dist[3];
 607 }
 608 RecursiveHullCheckTraceInfo_t;
 609
 610 // 1/32 epsilon to keep floating point happy
 611 #define DIST_EPSILON (0.03125)
 612
 613 #define HULLCHECKSTATE_EMPTY 0
 614 #define HULLCHECKSTATE_SOLID 1
 615 #define HULLCHECKSTATE_DONE 2
 616
 617 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
 618 {
 619         // status variables, these don't need to be saved on the stack when
 620         // recursing...  but are because this should be thread-safe
 621         // (note: tracing against a bbox is not thread-safe, yet)
 622         int ret;
 623         mplane_t *plane;
 624         double t1, t2;
 625
 626         // variables that need to be stored on the stack when recursing
 627         dclipnode_t *node;
 628         int side;
 629         double midf, mid[3];
 630
 631         // LordHavoc: a goto!  everyone flee in terror... :)
 632 loc0:
 633         // check for empty
 634         if (num < 0)
 635         {
 636                 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
 637                 if (!t->trace->startfound)
 638                 {
 639                         t->trace->startfound = true;
 640                         t->trace->startsupercontents |= num;
 641                 }
 642                 if (num & SUPERCONTENTS_LIQUIDSMASK)
 643                         t->trace->inwater = true;
 644                 if (num == 0)
 645                         t->trace->inopen = true;
 646                 if (num & SUPERCONTENTS_SOLID)
 647                         t->trace->hittexture = &mod_q1bsp_texture_solid;
 648                 else if (num & SUPERCONTENTS_SKY)
 649                         t->trace->hittexture = &mod_q1bsp_texture_sky;
 650                 else if (num & SUPERCONTENTS_LAVA)
 651                         t->trace->hittexture = &mod_q1bsp_texture_lava;
 652                 else if (num & SUPERCONTENTS_SLIME)
 653                         t->trace->hittexture = &mod_q1bsp_texture_slime;
 654                 else
 655                         t->trace->hittexture = &mod_q1bsp_texture_water;
 656                 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
 657                 t->trace->hitsupercontents = num;
 658                 if (num & t->trace->hitsupercontentsmask)
 659                 {
 660                         // if the first leaf is solid, set startsolid
 661                         if (t->trace->allsolid)
 662                                 t->trace->startsolid = true;
 663 #if COLLISIONPARANOID >= 3
 664                         Con_Print("S");
 665 #endif
 666                         return HULLCHECKSTATE_SOLID;
 667                 }
 668                 else
 669                 {
 670                         t->trace->allsolid = false;
 671 #if COLLISIONPARANOID >= 3
 672                         Con_Print("E");
 673 #endif
 674                         return HULLCHECKSTATE_EMPTY;
 675                 }
 676         }
 677
 678         // find the point distances
 679         node = t->hull->clipnodes + num;
 680
 681         plane = t->hull->planes + node->planenum;
 682         if (plane->type < 3)
 683         {
 684                 t1 = p1[plane->type] - plane->dist;
 685                 t2 = p2[plane->type] - plane->dist;
 686         }
 687         else
 688         {
 689                 t1 = DotProduct (plane->normal, p1) - plane->dist;
 690                 t2 = DotProduct (plane->normal, p2) - plane->dist;
 691         }
 692
 693         if (t1 < 0)
 694         {
 695                 if (t2 < 0)
 696                 {
 697 #if COLLISIONPARANOID >= 3
 698                         Con_Print("<");
 699 #endif
 700                         num = node->children[1];
 701                         goto loc0;
 702                 }
 703                 side = 1;
 704         }
 705         else
 706         {
 707                 if (t2 >= 0)
 708                 {
 709 #if COLLISIONPARANOID >= 3
 710                         Con_Print(">");
 711 #endif
 712                         num = node->children[0];
 713                         goto loc0;
 714                 }
 715                 side = 0;
 716         }
 717
 718         // the line intersects, find intersection point
 719         // LordHavoc: this uses the original trace for maximum accuracy
 720 #if COLLISIONPARANOID >= 3
 721         Con_Print("M");
 722 #endif
 723         if (plane->type < 3)
 724         {
 725                 t1 = t->start[plane->type] - plane->dist;
 726                 t2 = t->end[plane->type] - plane->dist;
 727         }
 728         else
 729         {
 730                 t1 = DotProduct (plane->normal, t->start) - plane->dist;
 731                 t2 = DotProduct (plane->normal, t->end) - plane->dist;
 732         }
 733
 734         midf = t1 / (t1 - t2);
 735         midf = bound(p1f, midf, p2f);
 736         VectorMA(t->start, midf, t->dist, mid);
 737
 738         // recurse both sides, front side first
 739         ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
 740         // if this side is not empty, return what it is (solid or done)
 741         if (ret != HULLCHECKSTATE_EMPTY)
 742                 return ret;
 743
 744         ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
 745         // if other side is not solid, return what it is (empty or done)
 746         if (ret != HULLCHECKSTATE_SOLID)
 747                 return ret;
 748
 749         // front is air and back is solid, this is the impact point...
 750         if (side)
 751         {
 752                 t->trace->plane.dist = -plane->dist;
 753                 VectorNegate (plane->normal, t->trace->plane.normal);
 754         }
 755         else
 756         {
 757                 t->trace->plane.dist = plane->dist;
 758                 VectorCopy (plane->normal, t->trace->plane.normal);
 759         }
 760
 761         // calculate the true fraction
 762         t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
 763         t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
 764         midf = t1 / (t1 - t2);
 765         t->trace->realfraction = bound(0, midf, 1);
 766
 767         // calculate the return fraction which is nudged off the surface a bit
 768         midf = (t1 - DIST_EPSILON) / (t1 - t2);
 769         t->trace->fraction = bound(0, midf, 1);
 770
 771 #if COLLISIONPARANOID >= 3
 772         Con_Print("D");
 773 #endif
 774         return HULLCHECKSTATE_DONE;
 775 }
 776
 777 //#if COLLISIONPARANOID < 2
 778 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
 779 {
 780         while (num >= 0)
 781                 num = t->hull->clipnodes[num].children[(t->hull->planes[t->hull->clipnodes[num].planenum].type < 3 ? t->start[t->hull->planes[t->hull->clipnodes[num].planenum].type] : DotProduct(t->hull->planes[t->hull->clipnodes[num].planenum].normal, t->start)) < t->hull->planes[t->hull->clipnodes[num].planenum].dist];
 782         num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
 783         t->trace->startsupercontents |= num;
 784         if (num & SUPERCONTENTS_LIQUIDSMASK)
 785                 t->trace->inwater = true;
 786         if (num == 0)
 787                 t->trace->inopen = true;
 788         if (num & t->trace->hitsupercontentsmask)
 789         {
 790                 t->trace->allsolid = t->trace->startsolid = true;
 791                 return HULLCHECKSTATE_SOLID;
 792         }
 793         else
 794         {
 795                 t->trace->allsolid = t->trace->startsolid = false;
 796                 return HULLCHECKSTATE_EMPTY;
 797         }
 798 }
 799 //#endif
 800
 801 static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
 802 {
 803         // this function currently only supports same size start and end
 804         double boxsize[3];
 805         RecursiveHullCheckTraceInfo_t rhc;
 806
 807         memset(&rhc, 0, sizeof(rhc));
 808         memset(trace, 0, sizeof(trace_t));
 809         rhc.trace = trace;
 810         rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
 811         rhc.trace->fraction = 1;
 812         rhc.trace->realfraction = 1;
 813         rhc.trace->allsolid = true;
 814         VectorSubtract(boxmaxs, boxmins, boxsize);
 815         if (boxsize[0] < 3)
 816                 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
 817         else if (model->brush.ismcbsp)
 818         {
 819                 if (boxsize[2] < 48) // pick the nearest of 40 or 56
 820                         rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
 821                 else
 822                         rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
 823         }
 824         else if (model->brush.ishlbsp)
 825         {
 826                 // LordHavoc: this has to have a minor tolerance (the .1) because of
 827                 // minor float precision errors from the box being transformed around
 828                 if (boxsize[0] < 32.1)
 829                 {
 830                         if (boxsize[2] < 54) // pick the nearest of 36 or 72
 831                                 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
 832                         else
 833                                 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
 834                 }
 835                 else
 836                         rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
 837         }
 838         else
 839         {
 840                 // LordHavoc: this has to have a minor tolerance (the .1) because of
 841                 // minor float precision errors from the box being transformed around
 842                 if (boxsize[0] < 32.1)
 843                         rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
 844                 else
 845                         rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
 846         }
 847         VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
 848         VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
 849         VectorSubtract(rhc.end, rhc.start, rhc.dist);
 850 #if COLLISIONPARANOID >= 2
 851         Con_Printf("t(%f %f %f,%f %f %f,%i %f %f %f)", rhc.start[0], rhc.start[1], rhc.start[2], rhc.end[0], rhc.end[1], rhc.end[2], rhc.hull - model->brushq1.hulls, rhc.hull->clip_mins[0], rhc.hull->clip_mins[1], rhc.hull->clip_mins[2]);
 852         Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
 853         {
 854
 855                 double test[3];
 856                 trace_t testtrace;
 857                 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
 858                 memset(&testtrace, 0, sizeof(trace_t));
 859                 rhc.trace = &testtrace;
 860                 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
 861                 rhc.trace->fraction = 1;
 862                 rhc.trace->realfraction = 1;
 863                 rhc.trace->allsolid = true;
 864                 VectorCopy(test, rhc.start);
 865                 VectorCopy(test, rhc.end);
 866                 VectorClear(rhc.dist);
 867                 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
 868                 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
 869                 if (!trace->startsolid && testtrace.startsolid)
 870                         Con_Printf(" - ended in solid!\n");
 871         }
 872         Con_Print("\n");
 873 #else
 874         if (VectorLength2(rhc.dist))
 875                 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
 876         else
 877                 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
 878 #endif
 879 }
 880
 881 void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture)
 882 {
 883 #if 1
 884         colbrushf_t cbox;
 885         colplanef_t cbox_planes[6];
 886         cbox.supercontents = boxsupercontents;
 887         cbox.numplanes = 6;
 888         cbox.numpoints = 0;
 889         cbox.numtriangles = 0;
 890         cbox.planes = cbox_planes;
 891         cbox.points = NULL;
 892         cbox.elements = NULL;
 893         cbox.markframe = 0;
 894         cbox.mins[0] = 0;
 895         cbox.mins[1] = 0;
 896         cbox.mins[2] = 0;
 897         cbox.maxs[0] = 0;
 898         cbox.maxs[1] = 0;
 899         cbox.maxs[2] = 0;
 900         cbox_planes[0].normal[0] =  1;cbox_planes[0].normal[1] =  0;cbox_planes[0].normal[2] =  0;cbox_planes[0].dist = cmaxs[0] - mins[0];
 901         cbox_planes[1].normal[0] = -1;cbox_planes[1].normal[1] =  0;cbox_planes[1].normal[2] =  0;cbox_planes[1].dist = maxs[0] - cmins[0];
 902         cbox_planes[2].normal[0] =  0;cbox_planes[2].normal[1] =  1;cbox_planes[2].normal[2] =  0;cbox_planes[2].dist = cmaxs[1] - mins[1];
 903         cbox_planes[3].normal[0] =  0;cbox_planes[3].normal[1] = -1;cbox_planes[3].normal[2] =  0;cbox_planes[3].dist = maxs[1] - cmins[1];
 904         cbox_planes[4].normal[0] =  0;cbox_planes[4].normal[1] =  0;cbox_planes[4].normal[2] =  1;cbox_planes[4].dist = cmaxs[2] - mins[2];
 905         cbox_planes[5].normal[0] =  0;cbox_planes[5].normal[1] =  0;cbox_planes[5].normal[2] = -1;cbox_planes[5].dist = maxs[2] - cmins[2];
 906         cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
 907         cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
 908         cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
 909         cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
 910         cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
 911         cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
 912         memset(trace, 0, sizeof(trace_t));
 913         trace->hitsupercontentsmask = hitsupercontentsmask;
 914         trace->fraction = 1;
 915         trace->realfraction = 1;
 916         Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
 917 #else
 918         RecursiveHullCheckTraceInfo_t rhc;
 919         static hull_t box_hull;
 920         static dclipnode_t box_clipnodes[6];
 921         static mplane_t box_planes[6];
 922         // fill in a default trace
 923         memset(&rhc, 0, sizeof(rhc));
 924         memset(trace, 0, sizeof(trace_t));
 925         //To keep everything totally uniform, bounding boxes are turned into small
 926         //BSP trees instead of being compared directly.
 927         // create a temp hull from bounding box sizes
 928         box_planes[0].dist = cmaxs[0] - mins[0];
 929         box_planes[1].dist = cmins[0] - maxs[0];
 930         box_planes[2].dist = cmaxs[1] - mins[1];
 931         box_planes[3].dist = cmins[1] - maxs[1];
 932         box_planes[4].dist = cmaxs[2] - mins[2];
 933         box_planes[5].dist = cmins[2] - maxs[2];
 934 #if COLLISIONPARANOID >= 3
 935         Con_Printf("box_planes %f:%f %f:%f %f:%f\ncbox %f %f %f:%f %f %f\nbox %f %f %f:%f %f %f\n", box_planes[0].dist, box_planes[1].dist, box_planes[2].dist, box_planes[3].dist, box_planes[4].dist, box_planes[5].dist, cmins[0], cmins[1], cmins[2], cmaxs[0], cmaxs[1], cmaxs[2], mins[0], mins[1], mins[2], maxs[0], maxs[1], maxs[2]);
 936 #endif
 937
 938         if (box_hull.clipnodes == NULL)
 939         {
 940                 int i, side;
 941
 942                 //Set up the planes and clipnodes so that the six floats of a bounding box
 943                 //can just be stored out and get a proper hull_t structure.
 944
 945                 box_hull.clipnodes = box_clipnodes;
 946                 box_hull.planes = box_planes;
 947                 box_hull.firstclipnode = 0;
 948                 box_hull.lastclipnode = 5;
 949
 950                 for (i = 0;i < 6;i++)
 951                 {
 952                         box_clipnodes[i].planenum = i;
 953
 954                         side = i&1;
 955
 956                         box_clipnodes[i].children[side] = CONTENTS_EMPTY;
 957                         if (i != 5)
 958                                 box_clipnodes[i].children[side^1] = i + 1;
 959                         else
 960                                 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
 961
 962                         box_planes[i].type = i>>1;
 963                         box_planes[i].normal[i>>1] = 1;
 964                 }
 965         }
 966
 967         // trace a line through the generated clipping hull
 968         //rhc.boxsupercontents = boxsupercontents;
 969         rhc.hull = &box_hull;
 970         rhc.trace = trace;
 971         rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
 972         rhc.trace->fraction = 1;
 973         rhc.trace->realfraction = 1;
 974         rhc.trace->allsolid = true;
 975         VectorCopy(start, rhc.start);
 976         VectorCopy(end, rhc.end);
 977         VectorSubtract(rhc.end, rhc.start, rhc.dist);
 978         Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
 979         //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
 980         if (rhc.trace->startsupercontents)
 981                 rhc.trace->startsupercontents = boxsupercontents;
 982 #endif
 983 }
 984
 985 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
 986 {
 987         int side;
 988         float front, back;
 989         float mid, distz = endz - startz;
 990
 991 loc0:
 992         if (!node->plane)
 993                 return false;           // didn't hit anything
 994
 995         switch (node->plane->type)
 996         {
 997         case PLANE_X:
 998                 node = node->children[x < node->plane->dist];
 999                 goto loc0;
1000         case PLANE_Y:
1001                 node = node->children[y < node->plane->dist];
1002                 goto loc0;
1003         case PLANE_Z:
1004                 side = startz < node->plane->dist;
1005                 if ((endz < node->plane->dist) == side)
1006                 {
1007                         node = node->children[side];
1008                         goto loc0;
1009                 }
1010                 // found an intersection
1011                 mid = node->plane->dist;
1012                 break;
1013         default:
1014                 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1015                 front += startz * node->plane->normal[2];
1016                 back += endz * node->plane->normal[2];
1017                 side = front < node->plane->dist;
1018                 if ((back < node->plane->dist) == side)
1019                 {
1020                         node = node->children[side];
1021                         goto loc0;
1022                 }
1023                 // found an intersection
1024                 mid = startz + distz * (front - node->plane->dist) / (front - back);
1025                 break;
1026         }
1027
1028         // go down front side
1029         if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1030                 return true;    // hit something
1031         else
1032         {
1033                 // check for impact on this node
1034                 if (node->numsurfaces)
1035                 {
1036                         int i, ds, dt;
1037                         msurface_t *surface;
1038
1039                         surface = model->data_surfaces + node->firstsurface;
1040                         for (i = 0;i < node->numsurfaces;i++, surface++)
1041                         {
1042                                 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1043                                         continue;       // no lightmaps
1044
1045                                 ds = (int) (x * surface->lightmapinfo->texinfo->vecs[0][0] + y * surface->lightmapinfo->texinfo->vecs[0][1] + mid * surface->lightmapinfo->texinfo->vecs[0][2] + surface->lightmapinfo->texinfo->vecs[0][3]) - surface->lightmapinfo->texturemins[0];
1046                                 dt = (int) (x * surface->lightmapinfo->texinfo->vecs[1][0] + y * surface->lightmapinfo->texinfo->vecs[1][1] + mid * surface->lightmapinfo->texinfo->vecs[1][2] + surface->lightmapinfo->texinfo->vecs[1][3]) - surface->lightmapinfo->texturemins[1];
1047
1048                                 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1049                                 {
1050                                         unsigned char *lightmap;
1051                                         int lmwidth, lmheight, maps, line3, size3, dsfrac = ds & 15, dtfrac = dt & 15, scale = 0, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
1052                                         lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1053                                         lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1054                                         line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1055                                         size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1056
1057                                         lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1058
1059                                         for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1060                                         {
1061                                                 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1062                                                 r00 += lightmap[      0] * scale;g00 += lightmap[      1] * scale;b00 += lightmap[      2] * scale;
1063                                                 r01 += lightmap[      3] * scale;g01 += lightmap[      4] * scale;b01 += lightmap[      5] * scale;
1064                                                 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1065                                                 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1066                                                 lightmap += size3;
1067                                         }
1068
1069 /*
1070 LordHavoc: here's the readable version of the interpolation
1071 code, not quite as easy for the compiler to optimize...
1072
1073 dsfrac is the X position in the lightmap pixel, * 16
1074 dtfrac is the Y position in the lightmap pixel, * 16
1075 r00 is top left corner, r01 is top right corner
1076 r10 is bottom left corner, r11 is bottom right corner
1077 g and b are the same layout.
1078 r0 and r1 are the top and bottom intermediate results
1079
1080 first we interpolate the top two points, to get the top
1081 edge sample
1082
1083         r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1084         g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1085         b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1086
1087 then we interpolate the bottom two points, to get the
1088 bottom edge sample
1089
1090         r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1091         g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1092         b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1093
1094 then we interpolate the top and bottom samples to get the
1095 middle sample (the one which was requested)
1096
1097         r = (((r1-r0) * dtfrac) >> 4) + r0;
1098         g = (((g1-g0) * dtfrac) >> 4) + g0;
1099         b = (((b1-b0) * dtfrac) >> 4) + b0;
1100 */
1101
1102                                         ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1103                                         ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1104                                         ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1105                                         return true; // success
1106                                 }
1107                         }
1108                 }
1109
1110                 // go down back side
1111                 node = node->children[side ^ 1];
1112                 startz = mid;
1113                 distz = endz - startz;
1114                 goto loc0;
1115         }
1116 }
1117
1118 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1119 {
1120         Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2] + 0.125, p[2] - 65536);
1121         VectorSet(diffusenormal, 0, 0, -1);
1122 }
1123
1124 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1125 {
1126         int c;
1127         unsigned char *outstart = out;
1128         while (out < outend)
1129         {
1130                 if (in == inend)
1131                 {
1132                         Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1133                         return;
1134                 }
1135                 c = *in++;
1136                 if (c)
1137                         *out++ = c;
1138                 else
1139                 {
1140                         if (in == inend)
1141                         {
1142                                 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1143                                 return;
1144                         }
1145                         for (c = *in++;c > 0;c--)
1146                         {
1147                                 if (out == outend)
1148                                 {
1149                                         Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1150                                         return;
1151                                 }
1152                                 *out++ = 0;
1153                         }
1154                 }
1155         }
1156 }
1157
1158 /*
1159 =============
1160 R_Q1BSP_LoadSplitSky
1161
1162 A sky texture is 256*128, with the right side being a masked overlay
1163 ==============
1164 */
1165 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1166 {
1167         int i, j;
1168         unsigned solidpixels[128*128], alphapixels[128*128];
1169
1170         // if sky isn't the right size, just use it as a solid layer
1171         if (width != 256 || height != 128)
1172         {
1173                 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", width, height, src, bytesperpixel == 4 ? TEXTYPE_RGBA : TEXTYPE_PALETTE, TEXF_PRECACHE, bytesperpixel == 1 ? palette_complete : NULL);
1174                 loadmodel->brush.alphaskytexture = NULL;
1175                 return;
1176         }
1177
1178         if (bytesperpixel == 4)
1179         {
1180                 for (i = 0;i < 128;i++)
1181                 {
1182                         for (j = 0;j < 128;j++)
1183                         {
1184                                 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1185                                 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1186                         }
1187                 }
1188         }
1189         else
1190         {
1191                 // make an average value for the back to avoid
1192                 // a fringe on the top level
1193                 int p, r, g, b;
1194                 union
1195                 {
1196                         unsigned int i;
1197                         unsigned char b[4];
1198                 }
1199                 rgba;
1200                 r = g = b = 0;
1201                 for (i = 0;i < 128;i++)
1202                 {
1203                         for (j = 0;j < 128;j++)
1204                         {
1205                                 rgba.i = palette_complete[src[i*256 + j + 128]];
1206                                 r += rgba.b[0];
1207                                 g += rgba.b[1];
1208                                 b += rgba.b[2];
1209                         }
1210                 }
1211                 rgba.b[0] = r/(128*128);
1212                 rgba.b[1] = g/(128*128);
1213                 rgba.b[2] = b/(128*128);
1214                 rgba.b[3] = 0;
1215                 for (i = 0;i < 128;i++)
1216                 {
1217                         for (j = 0;j < 128;j++)
1218                         {
1219                                 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1220                                 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1221                         }
1222                 }
1223         }
1224
1225         loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1226         loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1227 }
1228
1229 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1230 {
1231         int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1232         miptex_t *dmiptex;
1233         texture_t *tx, *tx2, *anims[10], *altanims[10];
1234         dmiptexlump_t *m;
1235         unsigned char *data, *mtdata;
1236         const char *s;
1237         char mapname[MAX_QPATH], name[MAX_QPATH];
1238
1239         loadmodel->data_textures = NULL;
1240
1241         // add two slots for notexture walls and notexture liquids
1242         if (l->filelen)
1243         {
1244                 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1245                 m->nummiptex = LittleLong (m->nummiptex);
1246                 loadmodel->num_textures = m->nummiptex + 2;
1247         }
1248         else
1249         {
1250                 m = NULL;
1251                 loadmodel->num_textures = 2;
1252         }
1253
1254         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1255
1256         // fill out all slots with notexture
1257         for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1258         {
1259                 strcpy(tx->name, "NO TEXTURE FOUND");
1260                 tx->width = 16;
1261                 tx->height = 16;
1262                 tx->skin.base = r_texture_notexture;
1263                 tx->basematerialflags = 0;
1264                 if (i == loadmodel->num_textures - 1)
1265                 {
1266                         tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1267                         tx->supercontents = mod_q1bsp_texture_water.supercontents;
1268                         tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1269                 }
1270                 else
1271                 {
1272                         tx->basematerialflags |= MATERIALFLAG_WALL;
1273                         tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1274                         tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1275                 }
1276                 tx->currentframe = tx;
1277         }
1278
1279         if (!m)
1280                 return;
1281
1282         s = loadmodel->name;
1283         if (!strncasecmp(s, "maps/", 5))
1284                 s += 5;
1285         FS_StripExtension(s, mapname, sizeof(mapname));
1286
1287         // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1288         dofs = m->dataofs;
1289         // LordHavoc: mostly rewritten map texture loader
1290         for (i = 0;i < m->nummiptex;i++)
1291         {
1292                 dofs[i] = LittleLong(dofs[i]);
1293                 if (dofs[i] == -1 || r_nosurftextures.integer)
1294                         continue;
1295                 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1296
1297                 // make sure name is no more than 15 characters
1298                 for (j = 0;dmiptex->name[j] && j < 15;j++)
1299                         name[j] = dmiptex->name[j];
1300                 name[j] = 0;
1301
1302                 mtwidth = LittleLong(dmiptex->width);
1303                 mtheight = LittleLong(dmiptex->height);
1304                 mtdata = NULL;
1305                 j = LittleLong(dmiptex->offsets[0]);
1306                 if (j)
1307                 {
1308                         // texture included
1309                         if (j < 40 || j + mtwidth * mtheight > l->filelen)
1310                         {
1311                                 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1312                                 continue;
1313                         }
1314                         mtdata = (unsigned char *)dmiptex + j;
1315                 }
1316
1317                 if ((mtwidth & 15) || (mtheight & 15))
1318                         Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1319
1320                 // LordHavoc: force all names to lowercase
1321                 for (j = 0;name[j];j++)
1322                         if (name[j] >= 'A' && name[j] <= 'Z')
1323                                 name[j] += 'a' - 'A';
1324
1325                 tx = loadmodel->data_textures + i;
1326                 strcpy(tx->name, name);
1327                 tx->width = mtwidth;
1328                 tx->height = mtheight;
1329
1330                 if (!tx->name[0])
1331                 {
1332                         sprintf(tx->name, "unnamed%i", i);
1333                         Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1334                 }
1335
1336                 if (cls.state != ca_dedicated)
1337                 {
1338                         // LordHavoc: HL sky textures are entirely different than quake
1339                         if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1340                         {
1341                                 if (loadmodel->isworldmodel)
1342                                 {
1343                                         data = loadimagepixels(tx->name, false, 0, 0);
1344                                         if (data)
1345                                         {
1346                                                 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1347                                                 Mem_Free(data);
1348                                         }
1349                                         else if (mtdata != NULL)
1350                                                 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1351                                 }
1352                         }
1353                         else
1354                         {
1355                                 if (!Mod_LoadSkinFrame(&tx->skin, gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true)
1356                                  && !Mod_LoadSkinFrame(&tx->skin, gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
1357                                 {
1358                                         // did not find external texture, load it from the bsp or wad3
1359                                         if (loadmodel->brush.ishlbsp)
1360                                         {
1361                                                 // internal texture overrides wad
1362                                                 unsigned char *pixels, *freepixels;
1363                                                 pixels = freepixels = NULL;
1364                                                 if (mtdata)
1365                                                         pixels = W_ConvertWAD3Texture(dmiptex);
1366                                                 if (pixels == NULL)
1367                                                         pixels = freepixels = W_GetTexture(tx->name);
1368                                                 if (pixels != NULL)
1369                                                 {
1370                                                         tx->width = image_width;
1371                                                         tx->height = image_height;
1372                                                         Mod_LoadSkinFrame_Internal(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, false, pixels, image_width, image_height, 32, NULL, NULL);
1373                                                 }
1374                                                 if (freepixels)
1375                                                         Mem_Free(freepixels);
1376                                         }
1377                                         else if (mtdata) // texture included
1378                                                 Mod_LoadSkinFrame_Internal(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height, 8, NULL, NULL);
1379                                 }
1380                         }
1381                         if (tx->skin.base == NULL)
1382                         {
1383                                 // no texture found
1384                                 tx->width = 16;
1385                                 tx->height = 16;
1386                                 tx->skin.base = r_texture_notexture;
1387                         }
1388                 }
1389
1390                 tx->basematerialflags = 0;
1391                 if (tx->name[0] == '*')
1392                 {
1393                         // LordHavoc: some turbulent textures should not be affected by wateralpha
1394                         if (strncmp(tx->name,"*lava",5)
1395                          && strncmp(tx->name,"*teleport",9)
1396                          && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1397                                 tx->basematerialflags |= MATERIALFLAG_WATERALPHA;
1398                         if (!strncmp(tx->name, "*lava", 5))
1399                         {
1400                                 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1401                                 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1402                         }
1403                         else if (!strncmp(tx->name, "*slime", 6))
1404                         {
1405                                 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1406                                 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1407                         }
1408                         else
1409                         {
1410                                 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1411                                 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1412                         }
1413                         tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1414                 }
1415                 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1416                 {
1417                         tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1418                         tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1419                         tx->basematerialflags |= MATERIALFLAG_SKY;
1420                 }
1421                 else
1422                 {
1423                         tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1424                         tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1425                         tx->basematerialflags |= MATERIALFLAG_WALL;
1426                 }
1427                 if (tx->skin.fog)
1428                         tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
1429
1430                 // start out with no animation
1431                 tx->currentframe = tx;
1432         }
1433
1434         // sequence the animations
1435         for (i = 0;i < m->nummiptex;i++)
1436         {
1437                 tx = loadmodel->data_textures + i;
1438                 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1439                         continue;
1440                 if (tx->anim_total[0] || tx->anim_total[1])
1441                         continue;       // already sequenced
1442
1443                 // find the number of frames in the animation
1444                 memset(anims, 0, sizeof(anims));
1445                 memset(altanims, 0, sizeof(altanims));
1446
1447                 for (j = i;j < m->nummiptex;j++)
1448                 {
1449                         tx2 = loadmodel->data_textures + j;
1450                         if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1451                                 continue;
1452
1453                         num = tx2->name[1];
1454                         if (num >= '0' && num <= '9')
1455                                 anims[num - '0'] = tx2;
1456                         else if (num >= 'a' && num <= 'j')
1457                                 altanims[num - 'a'] = tx2;
1458                         else
1459                                 Con_Printf("Bad animating texture %s\n", tx->name);
1460                 }
1461
1462                 max = altmax = 0;
1463                 for (j = 0;j < 10;j++)
1464                 {
1465                         if (anims[j])
1466                                 max = j + 1;
1467                         if (altanims[j])
1468                                 altmax = j + 1;
1469                 }
1470                 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1471
1472                 incomplete = false;
1473                 for (j = 0;j < max;j++)
1474                 {
1475                         if (!anims[j])
1476                         {
1477                                 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1478                                 incomplete = true;
1479                         }
1480                 }
1481                 for (j = 0;j < altmax;j++)
1482                 {
1483                         if (!altanims[j])
1484                         {
1485                                 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1486                                 incomplete = true;
1487                         }
1488                 }
1489                 if (incomplete)
1490                         continue;
1491
1492                 if (altmax < 1)
1493                 {
1494                         // if there is no alternate animation, duplicate the primary
1495                         // animation into the alternate
1496                         altmax = max;
1497                         for (k = 0;k < 10;k++)
1498                                 altanims[k] = anims[k];
1499                 }
1500
1501                 // link together the primary animation
1502                 for (j = 0;j < max;j++)
1503                 {
1504                         tx2 = anims[j];
1505                         tx2->animated = true;
1506                         tx2->anim_total[0] = max;
1507                         tx2->anim_total[1] = altmax;
1508                         for (k = 0;k < 10;k++)
1509                         {
1510                                 tx2->anim_frames[0][k] = anims[k];
1511                                 tx2->anim_frames[1][k] = altanims[k];
1512                         }
1513                 }
1514
1515                 // if there really is an alternate anim...
1516                 if (anims[0] != altanims[0])
1517                 {
1518                         // link together the alternate animation
1519                         for (j = 0;j < altmax;j++)
1520                         {
1521                                 tx2 = altanims[j];
1522                                 tx2->animated = true;
1523                                 // the primary/alternate are reversed here
1524                                 tx2->anim_total[0] = altmax;
1525                                 tx2->anim_total[1] = max;
1526                                 for (k = 0;k < 10;k++)
1527                                 {
1528                                         tx2->anim_frames[0][k] = altanims[k];
1529                                         tx2->anim_frames[1][k] = anims[k];
1530                                 }
1531                         }
1532                 }
1533         }
1534 }
1535
1536 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1537 {
1538         int i;
1539         unsigned char *in, *out, *data, d;
1540         char litfilename[MAX_QPATH];
1541         char dlitfilename[MAX_QPATH];
1542         fs_offset_t filesize;
1543         if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1544         {
1545                 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1546                 for (i=0; i<l->filelen; i++)
1547                         loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1548         }
1549         else if (loadmodel->brush.ismcbsp)
1550         {
1551                 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1552                 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1553         }
1554         else // LordHavoc: bsp version 29 (normal white lighting)
1555         {
1556                 // LordHavoc: hope is not lost yet, check for a .lit file to load
1557                 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1558                 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1559                 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1560                 strlcat (litfilename, ".lit", sizeof (litfilename));
1561                 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1562                 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1563                 if (data)
1564                 {
1565                         if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1566                         {
1567                                 i = LittleLong(((int *)data)[1]);
1568                                 if (i == 1)
1569                                 {
1570                                         Con_DPrintf("loaded %s\n", litfilename);
1571                                         loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1572                                         memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1573                                         Mem_Free(data);
1574                                         data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1575                                         if (data)
1576                                         {
1577                                                 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1578                                                 {
1579                                                         i = LittleLong(((int *)data)[1]);
1580                                                         if (i == 1)
1581                                                         {
1582                                                                 Con_DPrintf("loaded %s\n", dlitfilename);
1583                                                                 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1584                                                                 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1585                                                                 loadmodel->brushq3.deluxemapping_modelspace = false;
1586                                                                 loadmodel->brushq3.deluxemapping = true;
1587                                                         }
1588                                                 }
1589                                                 Mem_Free(data);
1590                                                 data = NULL;
1591                                         }
1592                                         return;
1593                                 }
1594                                 else
1595                                         Con_Printf("Unknown .lit file version (%d)\n", i);
1596                         }
1597                         else if (filesize == 8)
1598                                 Con_Print("Empty .lit file, ignoring\n");
1599                         else
1600                                 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", filesize, 8 + l->filelen * 3);
1601                         if (data)
1602                         {
1603                                 Mem_Free(data);
1604                                 data = NULL;
1605                         }
1606                 }
1607                 // LordHavoc: oh well, expand the white lighting data
1608                 if (!l->filelen)
1609                         return;
1610                 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1611                 in = mod_base + l->fileofs;
1612                 out = loadmodel->brushq1.lightdata;
1613                 for (i = 0;i < l->filelen;i++)
1614                 {
1615                         d = *in++;
1616                         *out++ = d;
1617                         *out++ = d;
1618                         *out++ = d;
1619                 }
1620         }
1621 }
1622
1623 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1624 {
1625         loadmodel->brushq1.num_compressedpvs = 0;
1626         loadmodel->brushq1.data_compressedpvs = NULL;
1627         if (!l->filelen)
1628                 return;
1629         loadmodel->brushq1.num_compressedpvs = l->filelen;
1630         loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1631         memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1632 }
1633
1634 // used only for HalfLife maps
1635 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1636 {
1637         char key[128], value[4096];
1638         char wadname[128];
1639         int i, j, k;
1640         if (!data)
1641                 return;
1642         if (!COM_ParseTokenConsole(&data))
1643                 return; // error
1644         if (com_token[0] != '{')
1645                 return; // error
1646         while (1)
1647         {
1648                 if (!COM_ParseTokenConsole(&data))
1649                         return; // error
1650                 if (com_token[0] == '}')
1651                         break; // end of worldspawn
1652                 if (com_token[0] == '_')
1653                         strcpy(key, com_token + 1);
1654                 else
1655                         strcpy(key, com_token);
1656                 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1657                         key[strlen(key)-1] = 0;
1658                 if (!COM_ParseTokenConsole(&data))
1659                         return; // error
1660                 dpsnprintf(value, sizeof(value), "%s", com_token);
1661                 if (!strcmp("wad", key)) // for HalfLife maps
1662                 {
1663                         if (loadmodel->brush.ishlbsp)
1664                         {
1665                                 j = 0;
1666                                 for (i = 0;i < (int)sizeof(value);i++)
1667                                         if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1668                                                 break;
1669                                 if (value[i])
1670                                 {
1671                                         for (;i < (int)sizeof(value);i++)
1672                                         {
1673                                                 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1674                                                 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1675                                                         j = i+1;
1676                                                 else if (value[i] == ';' || value[i] == 0)
1677                                                 {
1678                                                         k = value[i];
1679                                                         value[i] = 0;
1680                                                         strcpy(wadname, "textures/");
1681                                                         strcat(wadname, &value[j]);
1682                                                         W_LoadTextureWadFile(wadname, false);
1683                                                         j = i+1;
1684                                                         if (!k)
1685                                                                 break;
1686                                                 }
1687                                         }
1688                                 }
1689                         }
1690                 }
1691         }
1692 }
1693
1694 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1695 {
1696         loadmodel->brush.entities = NULL;
1697         if (!l->filelen)
1698                 return;
1699         loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1700         memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1701         if (loadmodel->brush.ishlbsp)
1702                 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1703 }
1704
1705
1706 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1707 {
1708         dvertex_t       *in;
1709         mvertex_t       *out;
1710         int                     i, count;
1711
1712         in = (dvertex_t *)(mod_base + l->fileofs);
1713         if (l->filelen % sizeof(*in))
1714                 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1715         count = l->filelen / sizeof(*in);
1716         out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1717
1718         loadmodel->brushq1.vertexes = out;
1719         loadmodel->brushq1.numvertexes = count;
1720
1721         for ( i=0 ; i<count ; i++, in++, out++)
1722         {
1723                 out->position[0] = LittleFloat(in->point[0]);
1724                 out->position[1] = LittleFloat(in->point[1]);
1725                 out->position[2] = LittleFloat(in->point[2]);
1726         }
1727 }
1728
1729 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1730 // can be used for this
1731 // REMOVEME
1732 int SB_ReadInt (unsigned char **buffer)
1733 {
1734         int     i;
1735         i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1736         (*buffer) += 4;
1737         return i;
1738 }
1739
1740 // REMOVEME
1741 float SB_ReadFloat (unsigned char **buffer)
1742 {
1743         union
1744         {
1745                 int             i;
1746                 float   f;
1747         } u;
1748
1749         u.i = SB_ReadInt (buffer);
1750         return u.f;
1751 }
1752
1753 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1754 {
1755         unsigned char           *index;
1756         dmodel_t        *out;
1757         int                     i, j, count;
1758
1759         index = (unsigned char *)(mod_base + l->fileofs);
1760         if (l->filelen % (48+4*hullinfo->filehulls))
1761                 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1762
1763         count = l->filelen / (48+4*hullinfo->filehulls);
1764         out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1765
1766         loadmodel->brushq1.submodels = out;
1767         loadmodel->brush.numsubmodels = count;
1768
1769         for (i = 0; i < count; i++, out++)
1770         {
1771         // spread out the mins / maxs by a pixel
1772                 out->mins[0] = SB_ReadFloat (&index) - 1;
1773                 out->mins[1] = SB_ReadFloat (&index) - 1;
1774                 out->mins[2] = SB_ReadFloat (&index) - 1;
1775                 out->maxs[0] = SB_ReadFloat (&index) + 1;
1776                 out->maxs[1] = SB_ReadFloat (&index) + 1;
1777                 out->maxs[2] = SB_ReadFloat (&index) + 1;
1778                 out->origin[0] = SB_ReadFloat (&index);
1779                 out->origin[1] = SB_ReadFloat (&index);
1780                 out->origin[2] = SB_ReadFloat (&index);
1781                 for (j = 0; j < hullinfo->filehulls; j++)
1782                         out->headnode[j] = SB_ReadInt (&index);
1783                 out->visleafs = SB_ReadInt (&index);
1784                 out->firstface = SB_ReadInt (&index);
1785                 out->numfaces = SB_ReadInt (&index);
1786         }
1787 }
1788
1789 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1790 {
1791         dedge_t *in;
1792         medge_t *out;
1793         int     i, count;
1794
1795         in = (dedge_t *)(mod_base + l->fileofs);
1796         if (l->filelen % sizeof(*in))
1797                 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1798         count = l->filelen / sizeof(*in);
1799         out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1800
1801         loadmodel->brushq1.edges = out;
1802         loadmodel->brushq1.numedges = count;
1803
1804         for ( i=0 ; i<count ; i++, in++, out++)
1805         {
1806                 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1807                 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1808                 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1809                 {
1810                         Con_Printf("Mod_Q1BSP_LoadEdges: %s has invalid vertex indices in edge %i (vertices %i %i >= numvertices %i)\n", loadmodel->name, i, out->v[0], out->v[1], loadmodel->brushq1.numvertexes);
1811                         out->v[0] = 0;
1812                         out->v[1] = 0;
1813                 }
1814         }
1815 }
1816
1817 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1818 {
1819         texinfo_t *in;
1820         mtexinfo_t *out;
1821         int i, j, k, count, miptex;
1822
1823         in = (texinfo_t *)(mod_base + l->fileofs);
1824         if (l->filelen % sizeof(*in))
1825                 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1826         count = l->filelen / sizeof(*in);
1827         out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1828
1829         loadmodel->brushq1.texinfo = out;
1830         loadmodel->brushq1.numtexinfo = count;
1831
1832         for (i = 0;i < count;i++, in++, out++)
1833         {
1834                 for (k = 0;k < 2;k++)
1835                         for (j = 0;j < 4;j++)
1836                                 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1837
1838                 miptex = LittleLong(in->miptex);
1839                 out->flags = LittleLong(in->flags);
1840
1841                 out->texture = NULL;
1842                 if (loadmodel->data_textures)
1843                 {
1844                         if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1845                                 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1846                         else
1847                                 out->texture = loadmodel->data_textures + miptex;
1848                 }
1849                 if (out->flags & TEX_SPECIAL)
1850                 {
1851                         // if texture chosen is NULL or the shader needs a lightmap,
1852                         // force to notexture water shader
1853                         if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1854                                 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1855                 }
1856                 else
1857                 {
1858                         // if texture chosen is NULL, force to notexture
1859                         if (out->texture == NULL)
1860                                 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1861                 }
1862         }
1863 }
1864
1865 #if 0
1866 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1867 {
1868         int             i, j;
1869         float   *v;
1870
1871         mins[0] = mins[1] = mins[2] = 9999;
1872         maxs[0] = maxs[1] = maxs[2] = -9999;
1873         v = verts;
1874         for (i = 0;i < numverts;i++)
1875         {
1876                 for (j = 0;j < 3;j++, v++)
1877                 {
1878                         if (*v < mins[j])
1879                                 mins[j] = *v;
1880                         if (*v > maxs[j])
1881                                 maxs[j] = *v;
1882                 }
1883         }
1884 }
1885
1886 #define MAX_SUBDIVPOLYTRIANGLES 4096
1887 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1888
1889 static int subdivpolyverts, subdivpolytriangles;
1890 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1891 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1892
1893 static int subdivpolylookupvert(vec3_t v)
1894 {
1895         int i;
1896         for (i = 0;i < subdivpolyverts;i++)
1897                 if (subdivpolyvert[i][0] == v[0]
1898                  && subdivpolyvert[i][1] == v[1]
1899                  && subdivpolyvert[i][2] == v[2])
1900                         return i;
1901         if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1902                 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1903         VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1904         return subdivpolyverts++;
1905 }
1906
1907 static void SubdividePolygon(int numverts, float *verts)
1908 {
1909         int             i, i1, i2, i3, f, b, c, p;
1910         vec3_t  mins, maxs, front[256], back[256];
1911         float   m, *pv, *cv, dist[256], frac;
1912
1913         if (numverts > 250)
1914                 Host_Error("SubdividePolygon: ran out of verts in buffer");
1915
1916         BoundPoly(numverts, verts, mins, maxs);
1917
1918         for (i = 0;i < 3;i++)
1919         {
1920                 m = (mins[i] + maxs[i]) * 0.5;
1921                 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1922                 if (maxs[i] - m < 8)
1923                         continue;
1924                 if (m - mins[i] < 8)
1925                         continue;
1926
1927                 // cut it
1928                 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1929                         dist[c] = cv[i] - m;
1930
1931                 f = b = 0;
1932                 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1933                 {
1934                         if (dist[p] >= 0)
1935                         {
1936                                 VectorCopy(pv, front[f]);
1937                                 f++;
1938                         }
1939                         if (dist[p] <= 0)
1940                         {
1941                                 VectorCopy(pv, back[b]);
1942                                 b++;
1943                         }
1944                         if (dist[p] == 0 || dist[c] == 0)
1945                                 continue;
1946                         if ((dist[p] > 0) != (dist[c] > 0) )
1947                         {
1948                                 // clip point
1949                                 frac = dist[p] / (dist[p] - dist[c]);
1950                                 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1951                                 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1952                                 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1953                                 f++;
1954                                 b++;
1955                         }
1956                 }
1957
1958                 SubdividePolygon(f, front[0]);
1959                 SubdividePolygon(b, back[0]);
1960                 return;
1961         }
1962
1963         i1 = subdivpolylookupvert(verts);
1964         i2 = subdivpolylookupvert(verts + 3);
1965         for (i = 2;i < numverts;i++)
1966         {
1967                 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1968                 {
1969                         Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1970                         return;
1971                 }
1972
1973                 i3 = subdivpolylookupvert(verts + i * 3);
1974                 subdivpolyindex[subdivpolytriangles][0] = i1;
1975                 subdivpolyindex[subdivpolytriangles][1] = i2;
1976                 subdivpolyindex[subdivpolytriangles][2] = i3;
1977                 i2 = i3;
1978                 subdivpolytriangles++;
1979         }
1980 }
1981
1982 //Breaks a polygon up along axial 64 unit
1983 //boundaries so that turbulent and sky warps
1984 //can be done reasonably.
1985 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
1986 {
1987         int i, j;
1988         surfvertex_t *v;
1989         surfmesh_t *mesh;
1990
1991         subdivpolytriangles = 0;
1992         subdivpolyverts = 0;
1993         SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
1994         if (subdivpolytriangles < 1)
1995                 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
1996
1997         surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
1998         mesh->num_vertices = subdivpolyverts;
1999         mesh->num_triangles = subdivpolytriangles;
2000         mesh->vertex = (surfvertex_t *)(mesh + 1);
2001         mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2002         memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2003
2004         for (i = 0;i < mesh->num_triangles;i++)
2005                 for (j = 0;j < 3;j++)
2006                         mesh->index[i*3+j] = subdivpolyindex[i][j];
2007
2008         for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2009         {
2010                 VectorCopy(subdivpolyvert[i], v->v);
2011                 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2012                 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2013         }
2014 }
2015 #endif
2016
2017 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2018 {
2019         int y, x2, y2;
2020         int bestx = totalwidth, besty = 0;
2021         // find the left-most space we can find
2022         for (y = 0;y <= totalheight - blockheight;y++)
2023         {
2024                 x2 = 0;
2025                 for (y2 = 0;y2 < blockheight;y2++)
2026                         x2 = max(x2, lineused[y+y2]);
2027                 if (bestx > x2)
2028                 {
2029                         bestx = x2;
2030                         besty = y;
2031                 }
2032         }
2033         // if the best was not good enough, return failure
2034         if (bestx > totalwidth - blockwidth)
2035                 return false;
2036         // we found a good spot
2037         if (outx)
2038                 *outx = bestx;
2039         if (outy)
2040                 *outy = besty;
2041         // now mark the space used
2042         for (y2 = 0;y2 < blockheight;y2++)
2043                 lineused[besty+y2] = bestx + blockwidth;
2044         // return success
2045         return true;
2046 }
2047
2048 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2049 {
2050         dface_t *in;
2051         msurface_t *surface;
2052         int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
2053         float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
2054 #define LIGHTMAPSIZE 256
2055         rtexture_t *lightmaptexture, *deluxemaptexture;
2056         int lightmap_lineused[LIGHTMAPSIZE];
2057
2058         in = (dface_t *)(mod_base + l->fileofs);
2059         if (l->filelen % sizeof(*in))
2060                 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2061         count = l->filelen / sizeof(*in);
2062         loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2063         loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2064
2065         loadmodel->num_surfaces = count;
2066
2067         totalverts = 0;
2068         totaltris = 0;
2069         for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2070         {
2071                 numedges = LittleShort(in->numedges);
2072                 totalverts += numedges;
2073                 totaltris += numedges - 2;
2074         }
2075
2076         Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2077
2078         lightmaptexture = NULL;
2079         deluxemaptexture = r_texture_blanknormalmap;
2080         lightmapnumber = 1;
2081         lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
2082
2083         totalverts = 0;
2084         totaltris = 0;
2085         for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2086         {
2087                 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2088
2089                 // FIXME: validate edges, texinfo, etc?
2090                 firstedge = LittleLong(in->firstedge);
2091                 numedges = LittleShort(in->numedges);
2092                 if ((unsigned int) firstedge > (unsigned int) loadmodel->brushq1.numsurfedges || (unsigned int) numedges > (unsigned int) loadmodel->brushq1.numsurfedges || (unsigned int) firstedge + (unsigned int) numedges > (unsigned int) loadmodel->brushq1.numsurfedges)
2093                         Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2094                 i = LittleShort(in->texinfo);
2095                 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2096                         Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2097                 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2098                 surface->texture = surface->lightmapinfo->texinfo->texture;
2099
2100                 planenum = LittleShort(in->planenum);
2101                 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2102                         Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2103
2104                 //surface->flags = surface->texture->flags;
2105                 //if (LittleShort(in->side))
2106                 //      surface->flags |= SURF_PLANEBACK;
2107                 //surface->plane = loadmodel->brush.data_planes + planenum;
2108
2109                 surface->num_firstvertex = totalverts;
2110                 surface->num_vertices = numedges;
2111                 surface->num_firsttriangle = totaltris;
2112                 surface->num_triangles = numedges - 2;
2113                 totalverts += numedges;
2114                 totaltris += numedges - 2;
2115
2116                 // convert edges back to a normal polygon
2117                 for (i = 0;i < surface->num_vertices;i++)
2118                 {
2119                         int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2120                         float s, t;
2121                         if (lindex > 0)
2122                                 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2123                         else
2124                                 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2125                         s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2126                         t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2127                         (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2128                         (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2129                         (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2130                         (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2131                         (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2132                 }
2133
2134                 for (i = 0;i < surface->num_triangles;i++)
2135                 {
2136                         (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2137                         (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2138                         (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2139                 }
2140
2141                 // compile additional data about the surface geometry
2142                 Mod_BuildNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, loadmodel->surfmesh.data_vertex3f, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle), loadmodel->surfmesh.data_normal3f, true);
2143                 Mod_BuildTextureVectorsFromNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle), loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
2144                 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2145
2146                 // generate surface extents information
2147                 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2148                 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2149                 for (i = 1;i < surface->num_vertices;i++)
2150                 {
2151                         for (j = 0;j < 2;j++)
2152                         {
2153                                 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2154                                 texmins[j] = min(texmins[j], val);
2155                                 texmaxs[j] = max(texmaxs[j], val);
2156                         }
2157                 }
2158                 for (i = 0;i < 2;i++)
2159                 {
2160                         surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2161                         surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2162                 }
2163
2164                 smax = surface->lightmapinfo->extents[0] >> 4;
2165                 tmax = surface->lightmapinfo->extents[1] >> 4;
2166                 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2167                 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2168
2169                 // lighting info
2170                 for (i = 0;i < MAXLIGHTMAPS;i++)
2171                         surface->lightmapinfo->styles[i] = in->styles[i];
2172                 surface->lightmaptexture = NULL;
2173                 surface->deluxemaptexture = r_texture_blanknormalmap;
2174                 i = LittleLong(in->lightofs);
2175                 if (i == -1)
2176                 {
2177                         surface->lightmapinfo->samples = NULL;
2178                         // give non-lightmapped water a 1x white lightmap
2179                         if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2180                         {
2181                                 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2182                                 surface->lightmapinfo->styles[0] = 0;
2183                                 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2184                         }
2185                 }
2186                 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2187                         surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2188                 else // LordHavoc: white lighting (bsp version 29)
2189                 {
2190                         surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2191                         if (loadmodel->brushq1.nmaplightdata)
2192                                 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2193                 }
2194
2195                 // check if we should apply a lightmap to this
2196                 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2197                 {
2198                         int i, iu, iv, lightmapx, lightmapy;
2199                         float u, v, ubase, vbase, uscale, vscale;
2200
2201                         if (ssize > 256 || tsize > 256)
2202                                 Host_Error("Bad surface extents");
2203                         // force lightmap upload on first time seeing the surface
2204                         surface->cached_dlight = true;
2205                         // stainmap for permanent marks on walls
2206                         surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2207                         // clear to white
2208                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2209
2210                         // find a place for this lightmap
2211                         if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
2212                         {
2213                                 // could not find room, make a new lightmap
2214                                 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2215                                 if (loadmodel->brushq1.nmaplightdata)
2216                                         deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2217                                 lightmapnumber++;
2218                                 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2219                                 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
2220                         }
2221
2222                         surface->lightmaptexture = lightmaptexture;
2223                         surface->deluxemaptexture = deluxemaptexture;
2224                         surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2225                         surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2226
2227                         ubase = lightmapx * lightmaptexcoordscale;
2228                         vbase = lightmapy * lightmaptexcoordscale;
2229                         uscale = lightmaptexcoordscale;
2230                         vscale = lightmaptexcoordscale;
2231
2232                         for (i = 0;i < surface->num_vertices;i++)
2233                         {
2234                                 u = ((DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3]) + 8 - surface->lightmapinfo->texturemins[0]) * (1.0 / 16.0);
2235                                 v = ((DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3]) + 8 - surface->lightmapinfo->texturemins[1]) * (1.0 / 16.0);
2236                                 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2237                                 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2238                                 // LordHavoc: calc lightmap data offset for vertex lighting to use
2239                                 iu = (int) u;
2240                                 iv = (int) v;
2241                                 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2242                         }
2243                 }
2244         }
2245 }
2246
2247 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2248 {
2249         //if (node->parent)
2250         //      Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2251         node->parent = parent;
2252         if (node->plane)
2253         {
2254                 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2255                 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2256         }
2257 }
2258
2259 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2260 {
2261         int                     i, j, count, p;
2262         dnode_t         *in;
2263         mnode_t         *out;
2264
2265         in = (dnode_t *)(mod_base + l->fileofs);
2266         if (l->filelen % sizeof(*in))
2267                 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2268         count = l->filelen / sizeof(*in);
2269         out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2270
2271         loadmodel->brush.data_nodes = out;
2272         loadmodel->brush.num_nodes = count;
2273
2274         for ( i=0 ; i<count ; i++, in++, out++)
2275         {
2276                 for (j=0 ; j<3 ; j++)
2277                 {
2278                         out->mins[j] = LittleShort(in->mins[j]);
2279                         out->maxs[j] = LittleShort(in->maxs[j]);
2280                 }
2281
2282                 p = LittleLong(in->planenum);
2283                 out->plane = loadmodel->brush.data_planes + p;
2284
2285                 out->firstsurface = LittleShort(in->firstface);
2286                 out->numsurfaces = LittleShort(in->numfaces);
2287
2288                 for (j=0 ; j<2 ; j++)
2289                 {
2290                         p = LittleShort(in->children[j]);
2291                         if (p >= 0)
2292                                 out->children[j] = loadmodel->brush.data_nodes + p;
2293                         else
2294                                 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2295                 }
2296         }
2297
2298         Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);      // sets nodes and leafs
2299 }
2300
2301 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2302 {
2303         dleaf_t *in;
2304         mleaf_t *out;
2305         int i, j, count, p;
2306
2307         in = (dleaf_t *)(mod_base + l->fileofs);
2308         if (l->filelen % sizeof(*in))
2309                 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2310         count = l->filelen / sizeof(*in);
2311         out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2312
2313         loadmodel->brush.data_leafs = out;
2314         loadmodel->brush.num_leafs = count;
2315         // get visleafs from the submodel data
2316         loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2317         loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2318         loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2319         memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2320
2321         for ( i=0 ; i<count ; i++, in++, out++)
2322         {
2323                 for (j=0 ; j<3 ; j++)
2324                 {
2325                         out->mins[j] = LittleShort(in->mins[j]);
2326                         out->maxs[j] = LittleShort(in->maxs[j]);
2327                 }
2328
2329                 // FIXME: this function could really benefit from some error checking
2330
2331                 out->contents = LittleLong(in->contents);
2332
2333                 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2334                 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2335                 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2336                 {
2337                         Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", out->firstleafsurface, out->firstleafsurface + out->numleafsurfaces, 0, loadmodel->brush.num_leafsurfaces);
2338                         out->firstleafsurface = NULL;
2339                         out->numleafsurfaces = 0;
2340                 }
2341
2342                 out->clusterindex = i - 1;
2343                 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2344                         out->clusterindex = -1;
2345
2346                 p = LittleLong(in->visofs);
2347                 // ignore visofs errors on leaf 0 (solid)
2348                 if (p >= 0 && out->clusterindex >= 0)
2349                 {
2350                         if (p >= loadmodel->brushq1.num_compressedpvs)
2351                                 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2352                         else
2353                                 Mod_Q1BSP_DecompressVis(loadmodel->brushq1.data_compressedpvs + p, loadmodel->brushq1.data_compressedpvs + loadmodel->brushq1.num_compressedpvs, loadmodel->brush.data_pvsclusters + out->clusterindex * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (out->clusterindex + 1) * loadmodel->brush.num_pvsclusterbytes);
2354                 }
2355
2356                 for (j = 0;j < 4;j++)
2357                         out->ambient_sound_level[j] = in->ambient_level[j];
2358
2359                 // FIXME: Insert caustics here
2360         }
2361 }
2362
2363 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2364 {
2365         dclipnode_t *in, *out;
2366         int                     i, count;
2367         hull_t          *hull;
2368
2369         in = (dclipnode_t *)(mod_base + l->fileofs);
2370         if (l->filelen % sizeof(*in))
2371                 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2372         count = l->filelen / sizeof(*in);
2373         out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2374
2375         loadmodel->brushq1.clipnodes = out;
2376         loadmodel->brushq1.numclipnodes = count;
2377
2378         for (i = 1; i < hullinfo->numhulls; i++)
2379         {
2380                 hull = &loadmodel->brushq1.hulls[i];
2381                 hull->clipnodes = out;
2382                 hull->firstclipnode = 0;
2383                 hull->lastclipnode = count-1;
2384                 hull->planes = loadmodel->brush.data_planes;
2385                 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2386                 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2387                 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2388                 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2389                 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2390                 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2391                 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2392         }
2393
2394         for (i=0 ; i<count ; i++, out++, in++)
2395         {
2396                 out->planenum = LittleLong(in->planenum);
2397                 out->children[0] = LittleShort(in->children[0]);
2398                 out->children[1] = LittleShort(in->children[1]);
2399                 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2400                         Host_Error("Corrupt clipping hull(out of range planenum)");
2401                 if (out->children[0] >= count || out->children[1] >= count)
2402                         Host_Error("Corrupt clipping hull(out of range child)");
2403         }
2404 }
2405
2406 //Duplicate the drawing hull structure as a clipping hull
2407 static void Mod_Q1BSP_MakeHull0(void)
2408 {
2409         mnode_t         *in;
2410         dclipnode_t *out;
2411         int                     i;
2412         hull_t          *hull;
2413
2414         hull = &loadmodel->brushq1.hulls[0];
2415
2416         in = loadmodel->brush.data_nodes;
2417         out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2418
2419         hull->clipnodes = out;
2420         hull->firstclipnode = 0;
2421         hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2422         hull->planes = loadmodel->brush.data_planes;
2423
2424         for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2425         {
2426                 out->planenum = in->plane - loadmodel->brush.data_planes;
2427                 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2428                 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2429         }
2430 }
2431
2432 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2433 {
2434         int i, j;
2435         short *in;
2436
2437         in = (short *)(mod_base + l->fileofs);
2438         if (l->filelen % sizeof(*in))
2439                 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2440         loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2441         loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2442
2443         for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2444         {
2445                 j = (unsigned) LittleShort(in[i]);
2446                 if (j >= loadmodel->num_surfaces)
2447                         Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2448                 loadmodel->brush.data_leafsurfaces[i] = j;
2449         }
2450 }
2451
2452 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2453 {
2454         int             i;
2455         int             *in;
2456
2457         in = (int *)(mod_base + l->fileofs);
2458         if (l->filelen % sizeof(*in))
2459                 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2460         loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2461         loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2462
2463         for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2464                 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2465 }
2466
2467
2468 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2469 {
2470         int                     i;
2471         mplane_t        *out;
2472         dplane_t        *in;
2473
2474         in = (dplane_t *)(mod_base + l->fileofs);
2475         if (l->filelen % sizeof(*in))
2476                 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2477
2478         loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2479         loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2480
2481         for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2482         {
2483                 out->normal[0] = LittleFloat(in->normal[0]);
2484                 out->normal[1] = LittleFloat(in->normal[1]);
2485                 out->normal[2] = LittleFloat(in->normal[2]);
2486                 out->dist = LittleFloat(in->dist);
2487
2488                 PlaneClassify(out);
2489         }
2490 }
2491
2492 static void Mod_Q1BSP_LoadMapBrushes(void)
2493 {
2494 #if 0
2495 // unfinished
2496         int submodel, numbrushes;
2497         qboolean firstbrush;
2498         char *text, *maptext;
2499         char mapfilename[MAX_QPATH];
2500         FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2501         strlcat (mapfilename, ".map", sizeof (mapfilename));
2502         maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2503         if (!maptext)
2504                 return;
2505         text = maptext;
2506         if (!COM_ParseTokenConsole(&data))
2507                 return; // error
2508         submodel = 0;
2509         for (;;)
2510         {
2511                 if (!COM_ParseTokenConsole(&data))
2512                         break;
2513                 if (com_token[0] != '{')
2514                         return; // error
2515                 // entity
2516                 firstbrush = true;
2517                 numbrushes = 0;
2518                 maxbrushes = 256;
2519                 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2520                 for (;;)
2521                 {
2522                         if (!COM_ParseTokenConsole(&data))
2523                                 return; // error
2524                         if (com_token[0] == '}')
2525                                 break; // end of entity
2526                         if (com_token[0] == '{')
2527                         {
2528                                 // brush
2529                                 if (firstbrush)
2530                                 {
2531                                         if (submodel)
2532                                         {
2533                                                 if (submodel > loadmodel->brush.numsubmodels)
2534                                                 {
2535                                                         Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2536                                                         model = NULL;
2537                                                 }
2538                                                 else
2539                                                         model = loadmodel->brush.submodels[submodel];
2540                                         }
2541                                         else
2542                                                 model = loadmodel;
2543                                 }
2544                                 for (;;)
2545                                 {
2546                                         if (!COM_ParseTokenConsole(&data))
2547                                                 return; // error
2548                                         if (com_token[0] == '}')
2549                                                 break; // end of brush
2550                                         // each brush face should be this format:
2551                                         // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2552                                         // FIXME: support hl .map format
2553                                         for (pointnum = 0;pointnum < 3;pointnum++)
2554                                         {
2555                                                 COM_ParseTokenConsole(&data);
2556                                                 for (componentnum = 0;componentnum < 3;componentnum++)
2557                                                 {
2558                                                         COM_ParseTokenConsole(&data);
2559                                                         point[pointnum][componentnum] = atof(com_token);
2560                                                 }
2561                                                 COM_ParseTokenConsole(&data);
2562                                         }
2563                                         COM_ParseTokenConsole(&data);
2564                                         strlcpy(facetexture, com_token, sizeof(facetexture));
2565                                         COM_ParseTokenConsole(&data);
2566                                         //scroll_s = atof(com_token);
2567                                         COM_ParseTokenConsole(&data);
2568                                         //scroll_t = atof(com_token);
2569                                         COM_ParseTokenConsole(&data);
2570                                         //rotate = atof(com_token);
2571                                         COM_ParseTokenConsole(&data);
2572                                         //scale_s = atof(com_token);
2573                                         COM_ParseTokenConsole(&data);
2574                                         //scale_t = atof(com_token);
2575                                         TriangleNormal(point[0], point[1], point[2], planenormal);
2576                                         VectorNormalizeDouble(planenormal);
2577                                         planedist = DotProduct(point[0], planenormal);
2578                                         //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2579                                 }
2580                                 continue;
2581                         }
2582                 }
2583         }
2584 #endif
2585 }
2586
2587
2588 #define MAX_PORTALPOINTS 64
2589
2590 typedef struct portal_s
2591 {
2592         mplane_t plane;
2593         mnode_t *nodes[2];              // [0] = front side of plane
2594         struct portal_s *next[2];
2595         int numpoints;
2596         double points[3*MAX_PORTALPOINTS];
2597         struct portal_s *chain; // all portals are linked into a list
2598 }
2599 portal_t;
2600
2601 static portal_t *portalchain;
2602
2603 /*
2604 ===========
2605 AllocPortal
2606 ===========
2607 */
2608 static portal_t *AllocPortal(void)
2609 {
2610         portal_t *p;
2611         p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2612         p->chain = portalchain;
2613         portalchain = p;
2614         return p;
2615 }
2616
2617 static void FreePortal(portal_t *p)
2618 {
2619         Mem_Free(p);
2620 }
2621
2622 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2623 {
2624         // process only nodes (leafs already had their box calculated)
2625         if (!node->plane)
2626                 return;
2627
2628         // calculate children first
2629         Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2630         Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2631
2632         // make combined bounding box from children
2633         node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2634         node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2635         node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2636         node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2637         node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2638         node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2639 }
2640
2641 static void Mod_Q1BSP_FinalizePortals(void)
2642 {
2643         int i, j, numportals, numpoints;
2644         portal_t *p, *pnext;
2645         mportal_t *portal;
2646         mvertex_t *point;
2647         mleaf_t *leaf, *endleaf;
2648
2649         // tally up portal and point counts and recalculate bounding boxes for all
2650         // leafs (because qbsp is very sloppy)
2651         leaf = loadmodel->brush.data_leafs;
2652         endleaf = leaf + loadmodel->brush.num_leafs;
2653         for (;leaf < endleaf;leaf++)
2654         {
2655                 VectorSet(leaf->mins,  2000000000,  2000000000,  2000000000);
2656                 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2657         }
2658         p = portalchain;
2659         numportals = 0;
2660         numpoints = 0;
2661         while (p)
2662         {
2663                 // note: this check must match the one below or it will usually corrupt memory
2664                 // the nodes[0] != nodes[1] check is because leaf 0 is the shared solid leaf, it can have many portals inside with leaf 0 on both sides
2665                 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2666                 {
2667                         numportals += 2;
2668                         numpoints += p->numpoints * 2;
2669                 }
2670                 p = p->chain;
2671         }
2672         loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2673         loadmodel->brush.num_portals = numportals;
2674         loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2675         loadmodel->brush.num_portalpoints = numpoints;
2676         // clear all leaf portal chains
2677         for (i = 0;i < loadmodel->brush.num_leafs;i++)
2678                 loadmodel->brush.data_leafs[i].portals = NULL;
2679         // process all portals in the global portal chain, while freeing them
2680         portal = loadmodel->brush.data_portals;
2681         point = loadmodel->brush.data_portalpoints;
2682         p = portalchain;
2683         portalchain = NULL;
2684         while (p)
2685         {
2686                 pnext = p->chain;
2687
2688                 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2689                 {
2690                         // note: this check must match the one above or it will usually corrupt memory
2691                         // the nodes[0] != nodes[1] check is because leaf 0 is the shared solid leaf, it can have many portals inside with leaf 0 on both sides
2692                         if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2693                         {
2694                                 // first make the back to front portal(forward portal)
2695                                 portal->points = point;
2696                                 portal->numpoints = p->numpoints;
2697                                 portal->plane.dist = p->plane.dist;
2698                                 VectorCopy(p->plane.normal, portal->plane.normal);
2699                                 portal->here = (mleaf_t *)p->nodes[1];
2700                                 portal->past = (mleaf_t *)p->nodes[0];
2701                                 // copy points
2702                                 for (j = 0;j < portal->numpoints;j++)
2703                                 {
2704                                         VectorCopy(p->points + j*3, point->position);
2705                                         point++;
2706                                 }
2707                                 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2708                                 PlaneClassify(&portal->plane);
2709
2710                                 // link into leaf's portal chain
2711                                 portal->next = portal->here->portals;
2712                                 portal->here->portals = portal;
2713
2714                                 // advance to next portal
2715                                 portal++;
2716
2717                                 // then make the front to back portal(backward portal)
2718                                 portal->points = point;
2719                                 portal->numpoints = p->numpoints;
2720                                 portal->plane.dist = -p->plane.dist;
2721                                 VectorNegate(p->plane.normal, portal->plane.normal);
2722                                 portal->here = (mleaf_t *)p->nodes[0];
2723                                 portal->past = (mleaf_t *)p->nodes[1];
2724                                 // copy points
2725                                 for (j = portal->numpoints - 1;j >= 0;j--)
2726                                 {
2727                                         VectorCopy(p->points + j*3, point->position);
2728                                         point++;
2729                                 }
2730                                 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2731                                 PlaneClassify(&portal->plane);
2732
2733                                 // link into leaf's portal chain
2734                                 portal->next = portal->here->portals;
2735                                 portal->here->portals = portal;
2736
2737                                 // advance to next portal
2738                                 portal++;
2739                         }
2740                         // add the portal's polygon points to the leaf bounding boxes
2741                         for (i = 0;i < 2;i++)
2742                         {
2743                                 leaf = (mleaf_t *)p->nodes[i];
2744                                 for (j = 0;j < p->numpoints;j++)
2745                                 {
2746                                         if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2747                                         if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2748                                         if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2749                                         if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2750                                         if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2751                                         if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2752                                 }
2753                         }
2754                 }
2755                 FreePortal(p);
2756                 p = pnext;
2757         }
2758         // now recalculate the node bounding boxes from the leafs
2759         Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2760 }
2761
2762 /*
2763 =============
2764 AddPortalToNodes
2765 =============
2766 */
2767 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2768 {
2769         if (!front)
2770                 Host_Error("AddPortalToNodes: NULL front node");
2771         if (!back)
2772                 Host_Error("AddPortalToNodes: NULL back node");
2773         if (p->nodes[0] || p->nodes[1])
2774                 Host_Error("AddPortalToNodes: already included");
2775         // note: front == back is handled gracefully, because leaf 0 is the shared solid leaf, it can often have portals with the same leaf on both sides
2776
2777         p->nodes[0] = front;
2778         p->next[0] = (portal_t *)front->portals;
2779         front->portals = (mportal_t *)p;
2780
2781         p->nodes[1] = back;
2782         p->next[1] = (portal_t *)back->portals;
2783         back->portals = (mportal_t *)p;
2784 }
2785
2786 /*
2787 =============
2788 RemovePortalFromNode
2789 =============
2790 */
2791 static void RemovePortalFromNodes(portal_t *portal)
2792 {
2793         int i;
2794         mnode_t *node;
2795         void **portalpointer;
2796         portal_t *t;
2797         for (i = 0;i < 2;i++)
2798         {
2799                 node = portal->nodes[i];
2800
2801                 portalpointer = (void **) &node->portals;
2802                 while (1)
2803                 {
2804                         t = (portal_t *)*portalpointer;
2805                         if (!t)
2806                                 Host_Error("RemovePortalFromNodes: portal not in leaf");
2807
2808                         if (t == portal)
2809                         {
2810                                 if (portal->nodes[0] == node)
2811                                 {
2812                                         *portalpointer = portal->next[0];
2813                                         portal->nodes[0] = NULL;
2814                                 }
2815                                 else if (portal->nodes[1] == node)
2816                                 {
2817                                         *portalpointer = portal->next[1];
2818                                         portal->nodes[1] = NULL;
2819                                 }
2820                                 else
2821                                         Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2822                                 break;
2823                         }
2824
2825                         if (t->nodes[0] == node)
2826                                 portalpointer = (void **) &t->next[0];
2827                         else if (t->nodes[1] == node)
2828                                 portalpointer = (void **) &t->next[1];
2829                         else
2830                                 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2831                 }
2832         }
2833 }
2834
2835 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2836 {
2837         int i, side;
2838         mnode_t *front, *back, *other_node;
2839         mplane_t clipplane, *plane;
2840         portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2841         int numfrontpoints, numbackpoints;
2842         double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2843
2844         // if a leaf, we're done
2845         if (!node->plane)
2846                 return;
2847
2848         plane = node->plane;
2849
2850         front = node->children[0];
2851         back = node->children[1];
2852         if (front == back)
2853                 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2854
2855         // create the new portal by generating a polygon for the node plane,
2856         // and clipping it by all of the other portals(which came from nodes above this one)
2857         nodeportal = AllocPortal();
2858         nodeportal->plane = *plane;
2859
2860         PolygonD_QuadForPlane(nodeportal->points, nodeportal->plane.normal[0], nodeportal->plane.normal[1], nodeportal->plane.normal[2], nodeportal->plane.dist, 1024.0*1024.0*1024.0);
2861         nodeportal->numpoints = 4;
2862         side = 0;       // shut up compiler warning
2863         for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2864         {
2865                 clipplane = portal->plane;
2866                 if (portal->nodes[0] == portal->nodes[1])
2867                         Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2868                 if (portal->nodes[0] == node)
2869                         side = 0;
2870                 else if (portal->nodes[1] == node)
2871                 {
2872                         clipplane.dist = -clipplane.dist;
2873                         VectorNegate(clipplane.normal, clipplane.normal);
2874                         side = 1;
2875                 }
2876                 else
2877                         Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2878
2879                 for (i = 0;i < nodeportal->numpoints*3;i++)
2880                         frontpoints[i] = nodeportal->points[i];
2881                 PolygonD_Divide(nodeportal->numpoints, frontpoints, clipplane.normal[0], clipplane.normal[1], clipplane.normal[2], clipplane.dist, 1.0/32.0, MAX_PORTALPOINTS, nodeportal->points, &nodeportal->numpoints, 0, NULL, NULL, NULL);
2882                 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2883                         break;
2884         }
2885
2886         if (nodeportal->numpoints < 3)
2887         {
2888                 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2889                 nodeportal->numpoints = 0;
2890         }
2891         else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2892         {
2893                 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2894                 nodeportal->numpoints = 0;
2895         }
2896
2897         AddPortalToNodes(nodeportal, front, back);
2898
2899         // split the portals of this node along this node's plane and assign them to the children of this node
2900         // (migrating the portals downward through the tree)
2901         for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2902         {
2903                 if (portal->nodes[0] == portal->nodes[1])
2904                         Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2905                 if (portal->nodes[0] == node)
2906                         side = 0;
2907                 else if (portal->nodes[1] == node)
2908                         side = 1;
2909                 else
2910                         Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2911                 nextportal = portal->next[side];
2912                 if (!portal->numpoints)
2913                         continue;
2914
2915                 other_node = portal->nodes[!side];
2916                 RemovePortalFromNodes(portal);
2917
2918                 // cut the portal into two portals, one on each side of the node plane
2919                 PolygonD_Divide(portal->numpoints, portal->points, plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, 1.0/32.0, MAX_PORTALPOINTS, frontpoints, &numfrontpoints, MAX_PORTALPOINTS, backpoints, &numbackpoints, NULL);
2920
2921                 if (!numfrontpoints)
2922                 {
2923                         if (side == 0)
2924                                 AddPortalToNodes(portal, back, other_node);
2925                         else
2926                                 AddPortalToNodes(portal, other_node, back);
2927                         continue;
2928                 }
2929                 if (!numbackpoints)
2930                 {
2931                         if (side == 0)
2932                                 AddPortalToNodes(portal, front, other_node);
2933                         else
2934                                 AddPortalToNodes(portal, other_node, front);
2935                         continue;
2936                 }
2937
2938                 // the portal is split
2939                 splitportal = AllocPortal();
2940                 temp = splitportal->chain;
2941                 *splitportal = *portal;
2942                 splitportal->chain = temp;
2943                 for (i = 0;i < numbackpoints*3;i++)
2944                         splitportal->points[i] = backpoints[i];
2945                 splitportal->numpoints = numbackpoints;
2946                 for (i = 0;i < numfrontpoints*3;i++)
2947                         portal->points[i] = frontpoints[i];
2948                 portal->numpoints = numfrontpoints;
2949
2950                 if (side == 0)
2951                 {
2952                         AddPortalToNodes(portal, front, other_node);
2953                         AddPortalToNodes(splitportal, back, other_node);
2954                 }
2955                 else
2956                 {
2957                         AddPortalToNodes(portal, other_node, front);
2958                         AddPortalToNodes(splitportal, other_node, back);
2959                 }
2960         }
2961
2962         Mod_Q1BSP_RecursiveNodePortals(front);
2963         Mod_Q1BSP_RecursiveNodePortals(back);
2964 }
2965
2966 static void Mod_Q1BSP_MakePortals(void)
2967 {
2968         portalchain = NULL;
2969         Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
2970         Mod_Q1BSP_FinalizePortals();
2971 }
2972
2973 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
2974 {
2975         int i, j, stylecounts[256], totalcount, remapstyles[256];
2976         msurface_t *surface;
2977         memset(stylecounts, 0, sizeof(stylecounts));
2978         for (i = 0;i < model->nummodelsurfaces;i++)
2979         {
2980                 surface = model->data_surfaces + model->firstmodelsurface + i;
2981                 for (j = 0;j < MAXLIGHTMAPS;j++)
2982                         stylecounts[surface->lightmapinfo->styles[j]]++;
2983         }
2984         totalcount = 0;
2985         model->brushq1.light_styles = 0;
2986         for (i = 0;i < 255;i++)
2987         {
2988                 if (stylecounts[i])
2989                 {
2990                         remapstyles[i] = model->brushq1.light_styles++;
2991                         totalcount += stylecounts[i] + 1;
2992                 }
2993         }
2994         if (!totalcount)
2995                 return;
2996         model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
2997         model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
2998         model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
2999         model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3000         model->brushq1.light_styles = 0;
3001         for (i = 0;i < 255;i++)
3002                 if (stylecounts[i])
3003                         model->brushq1.light_style[model->brushq1.light_styles++] = i;
3004         j = 0;
3005         for (i = 0;i < model->brushq1.light_styles;i++)
3006         {
3007                 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3008                 j += stylecounts[model->brushq1.light_style[i]] + 1;
3009         }
3010         for (i = 0;i < model->nummodelsurfaces;i++)
3011         {
3012                 surface = model->data_surfaces + model->firstmodelsurface + i;
3013                 for (j = 0;j < MAXLIGHTMAPS;j++)
3014                         if (surface->lightmapinfo->styles[j] != 255)
3015                                 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3016         }
3017         j = 0;
3018         for (i = 0;i < model->brushq1.light_styles;i++)
3019         {
3020                 *model->brushq1.light_styleupdatechains[i] = NULL;
3021                 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3022                 j += stylecounts[model->brushq1.light_style[i]] + 1;
3023         }
3024 }
3025
3026 //Returns PVS data for a given point
3027 //(note: can return NULL)
3028 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3029 {
3030         mnode_t *node;
3031         node = model->brush.data_nodes;
3032         while (node->plane)
3033                 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3034         if (((mleaf_t *)node)->clusterindex >= 0)
3035                 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3036         else
3037                 return NULL;
3038 }
3039
3040 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3041 {
3042         while (node->plane)
3043         {
3044                 float d = PlaneDiff(org, node->plane);
3045                 if (d > radius)
3046                         node = node->children[0];
3047                 else if (d < -radius)
3048                         node = node->children[1];
3049                 else
3050                 {
3051                         // go down both sides
3052                         Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3053                         node = node->children[1];
3054                 }
3055         }
3056         // if this leaf is in a cluster, accumulate the pvs bits
3057         if (((mleaf_t *)node)->clusterindex >= 0)
3058         {
3059                 int i;
3060                 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3061                 for (i = 0;i < pvsbytes;i++)
3062                         pvsbuffer[i] |= pvs[i];
3063         }
3064 }
3065
3066 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3067 //of the given point.
3068 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength)
3069 {
3070         int bytes = model->brush.num_pvsclusterbytes;
3071         bytes = min(bytes, pvsbufferlength);
3072         if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3073         {
3074                 memset(pvsbuffer, 0xFF, bytes);
3075                 return bytes;
3076         }
3077         memset(pvsbuffer, 0, bytes);
3078         Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3079         return bytes;
3080 }
3081
3082 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3083 {
3084         vec3_t size;
3085         const hull_t *hull;
3086
3087         VectorSubtract(inmaxs, inmins, size);
3088         if (cmodel->brush.ismcbsp)
3089         {
3090                 if (size[0] < 3)
3091                         hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3092                 else if (size[2] < 48) // pick the nearest of 40 or 56
3093                         hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3094                 else
3095                         hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3096         }
3097         else if (cmodel->brush.ishlbsp)
3098         {
3099                 if (size[0] < 3)
3100                         hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3101                 else if (size[0] <= 32)
3102                 {
3103                         if (size[2] < 54) // pick the nearest of 36 or 72
3104                                 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3105                         else
3106                                 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3107                 }
3108                 else
3109                         hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3110         }
3111         else
3112         {
3113                 if (size[0] < 3)
3114                         hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3115                 else if (size[0] <= 32)
3116                         hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3117                 else
3118                         hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3119         }
3120         VectorCopy(inmins, outmins);
3121         VectorAdd(inmins, hull->clip_size, outmaxs);
3122 }
3123
3124 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3125 {
3126         int i, j, k;
3127         dheader_t *header;
3128         dmodel_t *bm;
3129         mempool_t *mainmempool;
3130         float dist, modelyawradius, modelradius, *vec;
3131         msurface_t *surface;
3132         int numshadowmeshtriangles;
3133         dheader_t _header;
3134         hullinfo_t hullinfo;
3135
3136         mod->type = mod_brushq1;
3137
3138         if (!memcmp (buffer, "MCBSPpad", 8))
3139         {
3140                 unsigned char   *index;
3141
3142                 mod->brush.ismcbsp = true;
3143                 mod->brush.ishlbsp = false;
3144
3145                 mod_base = (unsigned char*)buffer;
3146
3147                 index = mod_base;
3148                 index += 8;
3149                 i = SB_ReadInt (&index);
3150                 if (i != MCBSPVERSION)
3151                         Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3152
3153         // read hull info
3154                 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3155                 hullinfo.filehulls = hullinfo.numhulls;
3156                 VectorClear (hullinfo.hullsizes[0][0]);
3157                 VectorClear (hullinfo.hullsizes[0][1]);
3158                 for (i = 1; i < hullinfo.numhulls; i++)
3159                 {
3160                         hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3161                         hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3162                         hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3163                         hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3164                         hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3165                         hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3166                 }
3167
3168         // read lumps
3169                 _header.version = 0;
3170                 for (i = 0; i < HEADER_LUMPS; i++)
3171                 {
3172                         _header.lumps[i].fileofs = SB_ReadInt (&index);
3173                         _header.lumps[i].filelen = SB_ReadInt (&index);
3174                 }
3175
3176                 header = &_header;
3177         }
3178         else
3179         {
3180                 header = (dheader_t *)buffer;
3181
3182                 i = LittleLong(header->version);
3183                 if (i != BSPVERSION && i != 30)
3184                         Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3185                 mod->brush.ishlbsp = i == 30;
3186                 mod->brush.ismcbsp = false;
3187
3188         // fill in hull info
3189                 VectorClear (hullinfo.hullsizes[0][0]);
3190                 VectorClear (hullinfo.hullsizes[0][1]);
3191                 if (mod->brush.ishlbsp)
3192                 {
3193                         hullinfo.numhulls = 4;
3194                         hullinfo.filehulls = 4;
3195                         VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3196                         VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3197                         VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3198                         VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3199                         VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3200                         VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3201                 }
3202                 else
3203                 {
3204                         hullinfo.numhulls = 3;
3205                         hullinfo.filehulls = 4;
3206                         VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3207                         VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3208                         VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3209                         VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3210                 }
3211
3212         // read lumps
3213                 mod_base = (unsigned char*)buffer;
3214                 for (i = 0; i < HEADER_LUMPS; i++)
3215                 {
3216                         header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3217                         header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3218                 }
3219         }
3220
3221         mod->soundfromcenter = true;
3222         mod->TraceBox = Mod_Q1BSP_TraceBox;
3223         mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3224         mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3225         mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3226         mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3227         mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3228         mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3229         mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3230         mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3231         mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3232         mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3233         mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3234         mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3235         mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3236
3237         if (loadmodel->isworldmodel)
3238         {
3239                 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3240                 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3241         }
3242
3243 // load into heap
3244
3245         // store which lightmap format to use
3246         mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3247
3248         mod->brush.qw_md4sum = 0;
3249         mod->brush.qw_md4sum2 = 0;
3250         for (i = 0;i < HEADER_LUMPS;i++)
3251         {
3252                 if (i == LUMP_ENTITIES)
3253                         continue;
3254                 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3255                 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3256                         continue;
3257                 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3258         }
3259
3260         Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3261         Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3262         Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3263         Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3264         Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3265         Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3266         Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3267         Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3268         Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3269         Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3270         Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3271         // load submodels before leafs because they contain the number of vis leafs
3272         Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3273         Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3274         Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3275         Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3276
3277         if (!mod->brushq1.lightdata)
3278                 mod->brush.LightPoint = NULL;
3279
3280         if (mod->brushq1.data_compressedpvs)
3281                 Mem_Free(mod->brushq1.data_compressedpvs);
3282         mod->brushq1.data_compressedpvs = NULL;
3283         mod->brushq1.num_compressedpvs = 0;
3284
3285         Mod_Q1BSP_MakeHull0();
3286         Mod_Q1BSP_MakePortals();
3287
3288         mod->numframes = 2;             // regular and alternate animation
3289         mod->numskins = 1;
3290
3291         mainmempool = mod->mempool;
3292
3293         // make a single combined shadow mesh to allow optimized shadow volume creation
3294         numshadowmeshtriangles = 0;
3295         for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3296         {
3297                 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3298                 numshadowmeshtriangles += surface->num_triangles;
3299         }
3300         loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3301         for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3302                 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
3303         loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3304         Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3305
3306         if (loadmodel->brush.numsubmodels)
3307                 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3308
3309         if (loadmodel->isworldmodel)
3310         {
3311                 // clear out any stale submodels or worldmodels lying around
3312                 // if we did this clear before now, an error might abort loading and
3313                 // leave things in a bad state
3314                 Mod_RemoveStaleWorldModels(loadmodel);
3315         }
3316
3317         // LordHavoc: to clear the fog around the original quake submodel code, I
3318         // will explain:
3319         // first of all, some background info on the submodels:
3320         // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3321         // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3322         // now the weird for loop itself:
3323         // the loop functions in an odd way, on each iteration it sets up the
3324         // current 'mod' model (which despite the confusing code IS the model of
3325         // the number i), at the end of the loop it duplicates the model to become
3326         // the next submodel, and loops back to set up the new submodel.
3327
3328         // LordHavoc: now the explanation of my sane way (which works identically):
3329         // set up the world model, then on each submodel copy from the world model
3330         // and set up the submodel with the respective model info.
3331         for (i = 0;i < mod->brush.numsubmodels;i++)
3332         {
3333                 // LordHavoc: this code was originally at the end of this loop, but
3334                 // has been transformed to something more readable at the start here.
3335
3336                 if (i > 0)
3337                 {
3338                         char name[10];
3339                         // LordHavoc: only register submodels if it is the world
3340                         // (prevents external bsp models from replacing world submodels with
3341                         //  their own)
3342                         if (!loadmodel->isworldmodel)
3343                                 continue;
3344                         // duplicate the basic information
3345                         sprintf(name, "*%i", i);
3346                         mod = Mod_FindName(name);
3347                         // copy the base model to this one
3348                         *mod = *loadmodel;
3349                         // rename the clone back to its proper name
3350                         strcpy(mod->name, name);
3351                         // textures and memory belong to the main model
3352                         mod->texturepool = NULL;
3353                         mod->mempool = NULL;
3354                 }
3355
3356                 mod->brush.submodel = i;
3357
3358                 if (loadmodel->brush.submodels)
3359                         loadmodel->brush.submodels[i] = mod;
3360
3361                 bm = &mod->brushq1.submodels[i];
3362
3363                 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3364                 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3365                 {
3366                         mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3367                         mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3368                 }
3369
3370                 mod->firstmodelsurface = bm->firstface;
3371                 mod->nummodelsurfaces = bm->numfaces;
3372
3373                 // make the model surface list (used by shadowing/lighting)
3374                 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3375                 for (j = 0;j < mod->nummodelsurfaces;j++)
3376                         mod->surfacelist[j] = mod->firstmodelsurface + j;
3377
3378                 // this gets altered below if sky is used
3379                 mod->DrawSky = NULL;
3380                 mod->Draw = R_Q1BSP_Draw;
3381                 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3382                 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3383                 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3384                 mod->DrawLight = R_Q1BSP_DrawLight;
3385                 if (i != 0)
3386                 {
3387                         mod->brush.GetPVS = NULL;
3388                         mod->brush.FatPVS = NULL;
3389                         mod->brush.BoxTouchingPVS = NULL;
3390                         mod->brush.BoxTouchingLeafPVS = NULL;
3391                         mod->brush.BoxTouchingVisibleLeafs = NULL;
3392                         mod->brush.FindBoxClusters = NULL;
3393                         mod->brush.LightPoint = NULL;
3394                         mod->brush.AmbientSoundLevelsForPoint = NULL;
3395                 }
3396                 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3397                 if (mod->nummodelsurfaces)
3398                 {
3399                         // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3400                         mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3401                         mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3402                         modelyawradius = 0;
3403                         modelradius = 0;
3404                         for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3405                         {
3406                                 // we only need to have a drawsky function if it is used(usually only on world model)
3407                                 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3408                                         mod->DrawSky = R_Q1BSP_DrawSky;
3409                                 // calculate bounding shapes
3410                                 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3411                                 {
3412                                         if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3413                                         if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3414                                         if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3415                                         if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3416                                         if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3417                                         if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3418                                         dist = vec[0]*vec[0]+vec[1]*vec[1];
3419                                         if (modelyawradius < dist)
3420                                                 modelyawradius = dist;
3421                                         dist += vec[2]*vec[2];
3422                                         if (modelradius < dist)
3423                                                 modelradius = dist;
3424                                 }
3425                         }
3426                         modelyawradius = sqrt(modelyawradius);
3427                         modelradius = sqrt(modelradius);
3428                         mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3429                         mod->yawmins[2] = mod->normalmins[2];
3430                         mod->yawmaxs[2] = mod->normalmaxs[2];
3431                         mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3432                         mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3433                         mod->radius = modelradius;
3434                         mod->radius2 = modelradius * modelradius;
3435                 }
3436                 else
3437                 {
3438                         // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3439                         Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3440                 }
3441                 //mod->brushq1.num_visleafs = bm->visleafs;
3442         }
3443
3444         Mod_Q1BSP_LoadMapBrushes();
3445
3446         //Mod_Q1BSP_ProcessLightList();
3447
3448         if (developer.integer >= 10)
3449                 Con_Printf("Some stats for q1bsp model \"%s\": %i faces, %i nodes, %i leafs, %i visleafs, %i visleafportals\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals);
3450 }
3451
3452 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3453 {
3454 }
3455
3456 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3457 {
3458 /*
3459         d_t *in;
3460         m_t *out;
3461         int i, count;
3462
3463         in = (void *)(mod_base + l->fileofs);
3464         if (l->filelen % sizeof(*in))
3465                 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3466         count = l->filelen / sizeof(*in);
3467         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3468
3469         loadmodel-> = out;
3470         loadmodel->num = count;
3471
3472         for (i = 0;i < count;i++, in++, out++)
3473         {
3474         }
3475 */
3476 }
3477
3478 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3479 {
3480 /*
3481         d_t *in;
3482         m_t *out;
3483         int i, count;
3484
3485         in = (void *)(mod_base + l->fileofs);
3486         if (l->filelen % sizeof(*in))
3487                 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3488         count = l->filelen / sizeof(*in);
3489         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3490
3491         loadmodel-> = out;
3492         loadmodel->num = count;
3493
3494         for (i = 0;i < count;i++, in++, out++)
3495         {
3496         }
3497 */
3498 }
3499
3500 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3501 {
3502 /*
3503         d_t *in;
3504         m_t *out;
3505         int i, count;
3506
3507         in = (void *)(mod_base + l->fileofs);
3508         if (l->filelen % sizeof(*in))
3509                 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3510         count = l->filelen / sizeof(*in);
3511         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3512
3513         loadmodel-> = out;
3514         loadmodel->num = count;
3515
3516         for (i = 0;i < count;i++, in++, out++)
3517         {
3518         }
3519 */
3520 }
3521
3522 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3523 {
3524 /*
3525         d_t *in;
3526         m_t *out;
3527         int i, count;
3528
3529         in = (void *)(mod_base + l->fileofs);
3530         if (l->filelen % sizeof(*in))
3531                 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3532         count = l->filelen / sizeof(*in);
3533         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3534
3535         loadmodel-> = out;
3536         loadmodel->num = count;
3537
3538         for (i = 0;i < count;i++, in++, out++)
3539         {
3540         }
3541 */
3542 }
3543
3544 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3545 {
3546 /*
3547         d_t *in;
3548         m_t *out;
3549         int i, count;
3550
3551         in = (void *)(mod_base + l->fileofs);
3552         if (l->filelen % sizeof(*in))
3553                 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3554         count = l->filelen / sizeof(*in);
3555         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3556
3557         loadmodel-> = out;
3558         loadmodel->num = count;
3559
3560         for (i = 0;i < count;i++, in++, out++)
3561         {
3562         }
3563 */
3564 }
3565
3566 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3567 {
3568 /*
3569         d_t *in;
3570         m_t *out;
3571         int i, count;
3572
3573         in = (void *)(mod_base + l->fileofs);
3574         if (l->filelen % sizeof(*in))
3575                 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3576         count = l->filelen / sizeof(*in);
3577         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3578
3579         loadmodel-> = out;
3580         loadmodel->num = count;
3581
3582         for (i = 0;i < count;i++, in++, out++)
3583         {
3584         }
3585 */
3586 }
3587
3588 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3589 {
3590 /*
3591         d_t *in;
3592         m_t *out;
3593         int i, count;
3594
3595         in = (void *)(mod_base + l->fileofs);
3596         if (l->filelen % sizeof(*in))
3597                 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3598         count = l->filelen / sizeof(*in);
3599         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3600
3601         loadmodel-> = out;
3602         loadmodel->num = count;
3603
3604         for (i = 0;i < count;i++, in++, out++)
3605         {
3606         }
3607 */
3608 }
3609
3610 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3611 {
3612 /*
3613         d_t *in;
3614         m_t *out;
3615         int i, count;
3616
3617         in = (void *)(mod_base + l->fileofs);
3618         if (l->filelen % sizeof(*in))
3619                 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3620         count = l->filelen / sizeof(*in);
3621         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3622
3623         loadmodel-> = out;
3624         loadmodel->num = count;
3625
3626         for (i = 0;i < count;i++, in++, out++)
3627         {
3628         }
3629 */
3630 }
3631
3632 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3633 {
3634 /*
3635         d_t *in;
3636         m_t *out;
3637         int i, count;
3638
3639         in = (void *)(mod_base + l->fileofs);
3640         if (l->filelen % sizeof(*in))
3641                 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3642         count = l->filelen / sizeof(*in);
3643         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3644
3645         loadmodel-> = out;
3646         loadmodel->num = count;
3647
3648         for (i = 0;i < count;i++, in++, out++)
3649         {
3650         }
3651 */
3652 }
3653
3654 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3655 {
3656 /*
3657         d_t *in;
3658         m_t *out;
3659         int i, count;
3660
3661         in = (void *)(mod_base + l->fileofs);
3662         if (l->filelen % sizeof(*in))
3663                 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3664         count = l->filelen / sizeof(*in);
3665         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3666
3667         loadmodel-> = out;
3668         loadmodel->num = count;
3669
3670         for (i = 0;i < count;i++, in++, out++)
3671         {
3672         }
3673 */
3674 }
3675
3676 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3677 {
3678 /*
3679         d_t *in;
3680         m_t *out;
3681         int i, count;
3682
3683         in = (void *)(mod_base + l->fileofs);
3684         if (l->filelen % sizeof(*in))
3685                 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3686         count = l->filelen / sizeof(*in);
3687         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3688
3689         loadmodel-> = out;
3690         loadmodel->num = count;
3691
3692         for (i = 0;i < count;i++, in++, out++)
3693         {
3694         }
3695 */
3696 }
3697
3698 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3699 {
3700 /*
3701         d_t *in;
3702         m_t *out;
3703         int i, count;
3704
3705         in = (void *)(mod_base + l->fileofs);
3706         if (l->filelen % sizeof(*in))
3707                 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3708         count = l->filelen / sizeof(*in);
3709         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3710
3711         loadmodel-> = out;
3712         loadmodel->num = count;
3713
3714         for (i = 0;i < count;i++, in++, out++)
3715         {
3716         }
3717 */
3718 }
3719
3720 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3721 {
3722 /*
3723         d_t *in;
3724         m_t *out;
3725         int i, count;
3726
3727         in = (void *)(mod_base + l->fileofs);
3728         if (l->filelen % sizeof(*in))
3729                 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3730         count = l->filelen / sizeof(*in);
3731         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3732
3733         loadmodel-> = out;
3734         loadmodel->num = count;
3735
3736         for (i = 0;i < count;i++, in++, out++)
3737         {
3738         }
3739 */
3740 }
3741
3742 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3743 {
3744 /*
3745         d_t *in;
3746         m_t *out;
3747         int i, count;
3748
3749         in = (void *)(mod_base + l->fileofs);
3750         if (l->filelen % sizeof(*in))
3751                 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3752         count = l->filelen / sizeof(*in);
3753         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3754
3755         loadmodel-> = out;
3756         loadmodel->num = count;
3757
3758         for (i = 0;i < count;i++, in++, out++)
3759         {
3760         }
3761 */
3762 }
3763
3764 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3765 {
3766 /*
3767         d_t *in;
3768         m_t *out;
3769         int i, count;
3770
3771         in = (void *)(mod_base + l->fileofs);
3772         if (l->filelen % sizeof(*in))
3773                 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3774         count = l->filelen / sizeof(*in);
3775         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3776
3777         loadmodel-> = out;
3778         loadmodel->num = count;
3779
3780         for (i = 0;i < count;i++, in++, out++)
3781         {
3782         }
3783 */
3784 }
3785
3786 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3787 {
3788 /*
3789         d_t *in;
3790         m_t *out;
3791         int i, count;
3792
3793         in = (void *)(mod_base + l->fileofs);
3794         if (l->filelen % sizeof(*in))
3795                 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3796         count = l->filelen / sizeof(*in);
3797         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3798
3799         loadmodel-> = out;
3800         loadmodel->num = count;
3801
3802         for (i = 0;i < count;i++, in++, out++)
3803         {
3804         }
3805 */
3806 }
3807
3808 static void Mod_Q2BSP_LoadModels(lump_t *l)
3809 {
3810 /*
3811         d_t *in;
3812         m_t *out;
3813         int i, count;
3814
3815         in = (void *)(mod_base + l->fileofs);
3816         if (l->filelen % sizeof(*in))
3817                 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3818         count = l->filelen / sizeof(*in);
3819         out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3820
3821         loadmodel-> = out;
3822         loadmodel->num = count;
3823
3824         for (i = 0;i < count;i++, in++, out++)
3825         {
3826         }
3827 */
3828 }
3829
3830 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3831 {
3832         int i;
3833         q2dheader_t *header;
3834
3835         Host_Error("Mod_Q2BSP_Load: not yet implemented");
3836
3837         mod->type = mod_brushq2;
3838
3839         header = (q2dheader_t *)buffer;
3840
3841         i = LittleLong(header->version);
3842         if (i != Q2BSPVERSION)
3843                 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3844         mod->brush.ishlbsp = false;
3845         mod->brush.ismcbsp = false;
3846         if (loadmodel->isworldmodel)
3847         {
3848                 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3849                 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3850         }
3851
3852         mod_base = (unsigned char *)header;
3853
3854         // swap all the lumps
3855         for (i = 0;i < (int) sizeof(*header) / 4;i++)
3856                 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3857
3858         // store which lightmap format to use
3859         mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3860
3861         mod->brush.qw_md4sum = 0;
3862         mod->brush.qw_md4sum2 = 0;
3863         for (i = 0;i < Q2HEADER_LUMPS;i++)
3864         {
3865                 if (i == Q2LUMP_ENTITIES)
3866                         continue;
3867                 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3868                 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
3869                         continue;
3870                 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3871         }
3872
3873         Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3874         Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3875         Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3876         Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3877         Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3878         Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3879         Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3880         Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3881         Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3882         Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3883         Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3884         Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3885         Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3886         Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3887         Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3888         Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3889         Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3890         // LordHavoc: must go last because this makes the submodels
3891         Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3892 }
3893
3894 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3895 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3896
3897 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3898 {
3899         const char *data;
3900         char key[128], value[MAX_INPUTLINE];
3901         float v[3];
3902         loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3903         loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3904         loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3905         if (!l->filelen)
3906                 return;
3907         loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
3908         memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3909         data = loadmodel->brush.entities;
3910         // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3911         if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
3912         {
3913                 while (1)
3914                 {
3915                         if (!COM_ParseTokenConsole(&data))
3916                                 break; // error
3917                         if (com_token[0] == '}')
3918                                 break; // end of worldspawn
3919                         if (com_token[0] == '_')
3920                                 strcpy(key, com_token + 1);
3921                         else
3922                                 strcpy(key, com_token);
3923                         while (key[strlen(key)-1] == ' ') // remove trailing spaces
3924                                 key[strlen(key)-1] = 0;
3925                         if (!COM_ParseTokenConsole(&data))
3926                                 break; // error
3927                         strcpy(value, com_token);
3928                         if (!strcmp("gridsize", key))
3929                         {
3930                                 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3931                                         VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3932                         }
3933                 }
3934         }
3935 }
3936
3937 // FIXME: make MAXSHADERS dynamic
3938 #define Q3SHADER_MAXSHADERS 4096
3939 #define Q3SHADER_MAXLAYERS 8
3940
3941 typedef struct q3shaderinfo_layer_s
3942 {
3943         char texturename[Q3PATHLENGTH];
3944         int blendfunc[2];
3945         qboolean rgbgenvertex;
3946         qboolean alphagenvertex;
3947 }
3948 q3shaderinfo_layer_t;
3949
3950 typedef struct q3shaderinfo_s
3951 {
3952         char name[Q3PATHLENGTH];
3953         int surfaceparms;
3954         int textureflags;
3955         int numlayers;
3956         qboolean lighting;
3957         qboolean vertexalpha;
3958         qboolean textureblendalpha;
3959         q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
3960         q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
3961         char skyboxname[Q3PATHLENGTH];
3962 }
3963 q3shaderinfo_t;
3964
3965 int q3shaders_numshaders;
3966 q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
3967
3968 static void Mod_Q3BSP_LoadShaders(void)
3969 {
3970         int j;
3971         int fileindex;
3972         fssearch_t *search;
3973         char *f;
3974         const char *text;
3975         q3shaderinfo_t *shader;
3976         q3shaderinfo_layer_t *layer;
3977         int numparameters;
3978         char parameter[4][Q3PATHLENGTH];
3979         search = FS_Search("scripts/*.shader", true, false);
3980         if (!search)
3981                 return;
3982         q3shaders_numshaders = 0;
3983         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
3984         {
3985                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
3986                 if (!f)
3987                         continue;
3988                 while (COM_ParseToken(&text, false))
3989                 {
3990                         if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
3991                         {
3992                                 Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
3993                                 break;
3994                         }
3995                         shader = q3shaders_shaders + q3shaders_numshaders++;
3996                         memset(shader, 0, sizeof(*shader));
3997                         strlcpy(shader->name, com_token, sizeof(shader->name));
3998                         if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
3999                         {
4000                                 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
4001                                 break;
4002                         }
4003                         while (COM_ParseToken(&text, false))
4004                         {
4005                                 if (!strcasecmp(com_token, "}"))
4006                                         break;
4007                                 if (!strcasecmp(com_token, "{"))
4008                                 {
4009                                         if (shader->numlayers < Q3SHADER_MAXLAYERS)
4010                                         {
4011                                                 layer = shader->layers + shader->numlayers++;
4012                                                 layer->rgbgenvertex = false;
4013                                                 layer->alphagenvertex = false;
4014                                                 layer->blendfunc[0] = GL_ONE;
4015                                                 layer->blendfunc[1] = GL_ZERO;
4016                                         }
4017                                         else
4018                                                 layer = NULL;
4019                                         while (COM_ParseToken(&text, false))
4020                                         {
4021                                                 if (!strcasecmp(com_token, "}"))
4022                                                         break;
4023                                                 if (!strcasecmp(com_token, "\n"))
4024                                                         continue;
4025                                                 if (layer == NULL)
4026                                                         continue;
4027                                                 numparameters = 0;
4028                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4029                                                 {
4030                                                         if (j < 4)
4031                                                         {
4032                                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4033                                                                 numparameters = j + 1;
4034                                                         }
4035                                                         if (!COM_ParseToken(&text, true))
4036                                                                 break;
4037                                                 }
4038                                                 if (developer.integer >= 100)
4039                                                 {
4040                                                         Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
4041                                                         for (j = 0;j < numparameters;j++)
4042                                                                 Con_Printf(" %s", parameter[j]);
4043                                                         Con_Print("\n");
4044                                                 }
4045                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
4046                                                 {
4047                                                         if (numparameters == 2)
4048                                                         {
4049                                                                 if (!strcasecmp(parameter[1], "add"))
4050                                                                 {
4051                                                                         layer->blendfunc[0] = GL_ONE;
4052                                                                         layer->blendfunc[1] = GL_ONE;
4053                                                                 }
4054                                                                 else if (!strcasecmp(parameter[1], "filter"))
4055                                                                 {
4056                                                                         layer->blendfunc[0] = GL_DST_COLOR;
4057                                                                         layer->blendfunc[1] = GL_ZERO;
4058                                                                 }
4059                                                                 else if (!strcasecmp(parameter[1], "blend"))
4060                                                                 {
4061                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
4062                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
4063                                                                 }
4064                                                         }
4065                                                         else if (numparameters == 3)
4066                                                         {
4067                                                                 int k;
4068                                                                 for (k = 0;k < 2;k++)
4069                                                                 {
4070                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
4071                                                                                 layer->blendfunc[k] = GL_ONE;
4072                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
4073                                                                                 layer->blendfunc[k] = GL_ZERO;
4074                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
4075                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
4076                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
4077                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
4078                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
4079                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
4080                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
4081                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4082                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
4083                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
4084                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
4085                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
4086                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
4087                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
4088                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
4089                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4090                                                                         else
4091                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
4092                                                                 }
4093                                                         }
4094                                                 }
4095                                                 if (layer == shader->layers + 0)
4096                                                 {
4097                                                         if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
4098                                                                 shader->textureflags |= Q3TEXTUREFLAG_ALPHATEST;
4099                                                 }
4100                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
4101                                                 {
4102                                                         strlcpy(layer->texturename, parameter[1], sizeof(layer->texturename));
4103                                                         if (!strcasecmp(parameter[1], "$lightmap"))
4104                                                                 shader->lighting = true;
4105                                                 }
4106                                                 else if (numparameters >= 3 && !strcasecmp(parameter[0], "animmap"))
4107                                                         strlcpy(layer->texturename, parameter[2], sizeof(layer->texturename));
4108                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
4109                                                         layer->rgbgenvertex = true;
4110                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
4111                                                         layer->alphagenvertex = true;
4112                                                 // break out a level if it was }
4113                                                 if (!strcasecmp(com_token, "}"))
4114                                                         break;
4115                                         }
4116                                         if (layer->rgbgenvertex)
4117                                                 shader->lighting = true;
4118                                         if (layer->alphagenvertex)
4119                                         {
4120                                                 if (layer == shader->layers + 0)
4121                                                 {
4122                                                         // vertex controlled transparency
4123                                                         shader->vertexalpha = true;
4124                                                 }
4125                                                 else
4126                                                 {
4127                                                         // multilayer terrain shader or similar
4128                                                         shader->textureblendalpha = true;
4129                                                 }
4130                                         }
4131                                         continue;
4132                                 }
4133                                 numparameters = 0;
4134                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4135                                 {
4136                                         if (j < 4)
4137                                         {
4138                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4139                                                 numparameters = j + 1;
4140                                         }
4141                                         if (!COM_ParseToken(&text, true))
4142                                                 break;
4143                                 }
4144                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
4145                                         break;
4146                                 if (developer.integer >= 100)
4147                                 {
4148                                         Con_Printf("%s: ", shader->name);
4149                                         for (j = 0;j < numparameters;j++)
4150                                                 Con_Printf(" %s", parameter[j]);
4151                                         Con_Print("\n");
4152                                 }
4153                                 if (numparameters < 1)
4154                                         continue;
4155                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
4156                                 {
4157                                         if (!strcasecmp(parameter[1], "alphashadow"))
4158                                                 shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
4159                                         else if (!strcasecmp(parameter[1], "areaportal"))
4160                                                 shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
4161                                         else if (!strcasecmp(parameter[1], "botclip"))
4162                                                 shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
4163                                         else if (!strcasecmp(parameter[1], "clusterportal"))
4164                                                 shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
4165                                         else if (!strcasecmp(parameter[1], "detail"))
4166                                                 shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
4167                                         else if (!strcasecmp(parameter[1], "donotenter"))
4168                                                 shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
4169                                         else if (!strcasecmp(parameter[1], "dust"))
4170                                                 shader->surfaceparms |= Q3SURFACEPARM_DUST;
4171                                         else if (!strcasecmp(parameter[1], "hint"))
4172                                                 shader->surfaceparms |= Q3SURFACEPARM_HINT;
4173                                         else if (!strcasecmp(parameter[1], "fog"))
4174                                                 shader->surfaceparms |= Q3SURFACEPARM_FOG;
4175                                         else if (!strcasecmp(parameter[1], "lava"))
4176                                                 shader->surfaceparms |= Q3SURFACEPARM_LAVA;
4177                                         else if (!strcasecmp(parameter[1], "lightfilter"))
4178                                                 shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
4179                                         else if (!strcasecmp(parameter[1], "lightgrid"))
4180                                                 shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
4181                                         else if (!strcasecmp(parameter[1], "metalsteps"))
4182                                                 shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
4183                                         else if (!strcasecmp(parameter[1], "nodamage"))
4184                                                 shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
4185                                         else if (!strcasecmp(parameter[1], "nodlight"))
4186                                                 shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
4187                                         else if (!strcasecmp(parameter[1], "nodraw"))
4188                                                 shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
4189                                         else if (!strcasecmp(parameter[1], "nodrop"))
4190                                                 shader->surfaceparms |= Q3SURFACEPARM_NODROP;
4191                                         else if (!strcasecmp(parameter[1], "noimpact"))
4192                                                 shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
4193                                         else if (!strcasecmp(parameter[1], "nolightmap"))
4194                                                 shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
4195                                         else if (!strcasecmp(parameter[1], "nomarks"))
4196                                                 shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
4197                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
4198                                                 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4199                                         else if (!strcasecmp(parameter[1], "nonsolid"))
4200                                                 shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
4201                                         else if (!strcasecmp(parameter[1], "origin"))
4202                                                 shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
4203                                         else if (!strcasecmp(parameter[1], "playerclip"))
4204                                                 shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
4205                                         else if (!strcasecmp(parameter[1], "sky"))
4206                                                 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4207                                         else if (!strcasecmp(parameter[1], "slick"))
4208                                                 shader->surfaceparms |= Q3SURFACEPARM_SLICK;
4209                                         else if (!strcasecmp(parameter[1], "slime"))
4210                                                 shader->surfaceparms |= Q3SURFACEPARM_SLIME;
4211                                         else if (!strcasecmp(parameter[1], "structural"))
4212                                                 shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
4213                                         else if (!strcasecmp(parameter[1], "trans"))
4214                                                 shader->surfaceparms |= Q3SURFACEPARM_TRANS;
4215                                         else if (!strcasecmp(parameter[1], "water"))
4216                                                 shader->surfaceparms |= Q3SURFACEPARM_WATER;
4217                                         else if (!strcasecmp(parameter[1], "pointlight"))
4218                                                 shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
4219                                         else
4220                                                 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
4221                                 }
4222                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4223                                 {
4224                                         // some q3 skies don't have the sky parm set
4225                                         shader->surfaceparms |= Q3SURFACEPARM_SKY;
4226                                         strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4227                                 }
4228                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4229                                 {
4230                                         // some q3 skies don't have the sky parm set
4231                                         shader->surfaceparms |= Q3SURFACEPARM_SKY;
4232                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4233                                                 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4234                                 }
4235                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4236                                 {
4237                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4238                                                 shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
4239                                 }
4240                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
4241                                         shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4242                                 else if (!strcasecmp(parameter[0], "nopicmip"))
4243                                         shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
4244                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4245                                 {
4246                                         if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4247                                                 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
4248                                         if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4249                                                 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
4250                                 }
4251                         }
4252                         // identify if this is a blended terrain shader or similar
4253                         if (shader->numlayers)
4254                         {
4255                                 shader->primarylayer = shader->layers + 0;
4256                                 if (shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4257                                 {
4258                                         // terrain blending or other effects
4259                                         shader->backgroundlayer = shader->layers + 0;
4260                                         shader->primarylayer = shader->layers + 1;
4261                                 }
4262                                 // now see if the lightmap came first, and if so choose the second texture instead
4263                                 if (!strcasecmp(shader->primarylayer->texturename, "$lightmap"))
4264                                         shader->primarylayer = shader->layers + 1;
4265                         }
4266                 }
4267                 Mem_Free(f);
4268         }
4269 }
4270
4271 q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
4272 {
4273         int i;
4274         for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
4275                 if (!strcasecmp(q3shaders_shaders[i].name, name))
4276                         return q3shaders_shaders + i;
4277         return NULL;
4278 }
4279
4280 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4281 {
4282         q3dtexture_t *in;
4283         texture_t *out;
4284         int i, count, c;
4285
4286         in = (q3dtexture_t *)(mod_base + l->fileofs);
4287         if (l->filelen % sizeof(*in))
4288                 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4289         count = l->filelen / sizeof(*in);
4290         out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4291
4292         loadmodel->data_textures = out;
4293         loadmodel->num_textures = count;
4294
4295         // parse the Q3 shader files
4296         Mod_Q3BSP_LoadShaders();
4297
4298         c = 0;
4299         for (i = 0;i < count;i++, in++, out++)
4300         {
4301                 q3shaderinfo_t *shader;
4302                 strlcpy (out->name, in->name, sizeof (out->name));
4303                 out->surfaceflags = LittleLong(in->surfaceflags);
4304                 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
4305                 shader = Mod_Q3BSP_LookupShader(out->name);
4306                 if (shader)
4307                 {
4308                         out->surfaceparms = shader->surfaceparms;
4309                         out->textureflags = shader->textureflags;
4310                         out->basematerialflags = 0;
4311                         if (shader->surfaceparms & Q3SURFACEPARM_SKY)
4312                         {
4313                                 out->basematerialflags |= MATERIALFLAG_SKY;
4314                                 if (shader->skyboxname[0])
4315                                 {
4316                                         // quake3 seems to append a _ to the skybox name, so this must do so as well
4317                                         dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
4318                                 }
4319                         }
4320                         else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
4321                                 out->basematerialflags |= MATERIALFLAG_NODRAW;
4322                         else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
4323                                 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
4324                         else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
4325                                 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4326                         else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
4327                                 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4328                         else
4329                                 out->basematerialflags |= MATERIALFLAG_WALL;
4330                         if (shader->textureflags & Q3TEXTUREFLAG_ALPHATEST)
4331                                 out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_TRANSPARENT;
4332                         out->customblendfunc[0] = GL_ONE;
4333                         out->customblendfunc[1] = GL_ZERO;
4334                         if (shader->numlayers > 0)
4335                         {
4336                                 out->customblendfunc[0] = shader->layers[0].blendfunc[0];
4337                                 out->customblendfunc[1] = shader->layers[0].blendfunc[1];
4338 /*
4339 Q3 shader blendfuncs actually used in the game (* = supported by DP)
4340 * additive               GL_ONE GL_ONE
4341   additive weird         GL_ONE GL_SRC_ALPHA
4342   additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
4343 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
4344   alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
4345   brighten               GL_DST_COLOR GL_ONE
4346   brighten               GL_ONE GL_SRC_COLOR
4347   brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
4348   brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
4349 * modulate               GL_DST_COLOR GL_ZERO
4350 * modulate               GL_ZERO GL_SRC_COLOR
4351   modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
4352   modulate inverse alpha GL_ZERO GL_SRC_ALPHA
4353   modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
4354 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
4355 * no blend               GL_ONE GL_ZERO
4356   nothing                GL_ZERO GL_ONE
4357 */
4358                                 // if not opaque, figure out what blendfunc to use
4359                                 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
4360                                 {
4361                                         if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
4362                                                 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4363                                         else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
4364                                                 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4365                                         else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4366                                                 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4367                                         else
4368                                                 out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4369                                 }
4370                         }
4371                         if (!shader->lighting)
4372                                 out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4373                         if (cls.state != ca_dedicated)
4374                                 if (shader->primarylayer && !Mod_LoadSkinFrame(&out->skin, shader->primarylayer->texturename, ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true))
4375                                         Con_Printf("%s: could not load texture \"%s\" for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename, out->name);
4376                 }
4377                 else
4378                 {
4379                         c++;
4380                         Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4381                         out->surfaceparms = 0;
4382                         if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4383                                 out->basematerialflags |= MATERIALFLAG_NODRAW;
4384                         else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4385                                 out->basematerialflags |= MATERIALFLAG_SKY;
4386                         else
4387                                 out->basematerialflags |= MATERIALFLAG_WALL;
4388                         // these are defaults
4389                         //if (!strncmp(out->name, "textures/skies/", 15))
4390                         //      out->surfaceparms |= Q3SURFACEPARM_SKY;
4391                         //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4392                         // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4393                         //      out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4394                         //if (R_TextureHasAlpha(out->skin.base))
4395                         //      out->surfaceparms |= Q3SURFACEPARM_TRANS;
4396                         if (cls.state != ca_dedicated)
4397                                 if (!Mod_LoadSkinFrame(&out->skin, out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
4398                                         Con_Printf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
4399                 }
4400                 // no animation
4401                 out->currentframe = out;
4402         }
4403         if (c)
4404                 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4405 }
4406
4407 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4408 {
4409         q3dplane_t *in;
4410         mplane_t *out;
4411         int i, count;
4412
4413         in = (q3dplane_t *)(mod_base + l->fileofs);
4414         if (l->filelen % sizeof(*in))
4415                 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4416         count = l->filelen / sizeof(*in);
4417         out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4418
4419         loadmodel->brush.data_planes = out;
4420         loadmodel->brush.num_planes = count;
4421
4422         for (i = 0;i < count;i++, in++, out++)
4423         {
4424                 out->normal[0] = LittleFloat(in->normal[0]);
4425                 out->normal[1] = LittleFloat(in->normal[1]);
4426                 out->normal[2] = LittleFloat(in->normal[2]);
4427                 out->dist = LittleFloat(in->dist);
4428                 PlaneClassify(out);
4429         }
4430 }
4431
4432 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4433 {
4434         q3dbrushside_t *in;
4435         q3mbrushside_t *out;
4436         int i, n, count;
4437
4438         in = (q3dbrushside_t *)(mod_base + l->fileofs);
4439         if (l->filelen % sizeof(*in))
4440                 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4441         count = l->filelen / sizeof(*in);
4442         out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4443
4444         loadmodel->brush.data_brushsides = out;
4445         loadmodel->brush.num_brushsides = count;
4446
4447         for (i = 0;i < count;i++, in++, out++)
4448         {
4449                 n = LittleLong(in->planeindex);
4450                 if (n < 0 || n >= loadmodel->brush.num_planes)
4451                         Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4452                 out->plane = loadmodel->brush.data_planes + n;
4453                 n = LittleLong(in->textureindex);
4454                 if (n < 0 || n >= loadmodel->num_textures)
4455                         Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4456                 out->texture = loadmodel->data_textures + n;
4457         }
4458 }
4459
4460 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4461 {
4462         q3dbrush_t *in;
4463         q3mbrush_t *out;
4464         int i, j, n, c, count, maxplanes;
4465         colplanef_t *planes;
4466
4467         in = (q3dbrush_t *)(mod_base + l->fileofs);
4468         if (l->filelen % sizeof(*in))
4469                 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4470         count = l->filelen / sizeof(*in);
4471         out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4472
4473         loadmodel->brush.data_brushes = out;
4474         loadmodel->brush.num_brushes = count;
4475
4476         maxplanes = 0;
4477         planes = NULL;
4478
4479         for (i = 0;i < count;i++, in++, out++)
4480         {
4481                 n = LittleLong(in->firstbrushside);
4482                 c = LittleLong(in->numbrushsides);
4483                 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4484                         Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4485                 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4486                 out->numbrushsides = c;
4487                 n = LittleLong(in->textureindex);
4488                 if (n < 0 || n >= loadmodel->num_textures)
4489                         Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4490                 out->texture = loadmodel->data_textures + n;
4491
4492                 // make a list of mplane_t structs to construct a colbrush from
4493                 if (maxplanes < out->numbrushsides)
4494                 {
4495                         maxplanes = out->numbrushsides;
4496                         if (planes)
4497                                 Mem_Free(planes);
4498                         planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4499                 }
4500                 for (j = 0;j < out->numbrushsides;j++)
4501                 {
4502                         VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4503                         planes[j].dist = out->firstbrushside[j].plane->dist;
4504                         planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4505                         planes[j].texture = out->firstbrushside[j].texture;
4506                 }
4507                 // make the colbrush from the planes
4508                 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4509         }
4510         if (planes)
4511                 Mem_Free(planes);
4512 }
4513
4514 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4515 {
4516         q3deffect_t *in;
4517         q3deffect_t *out;
4518         int i, n, count;
4519
4520         in = (q3deffect_t *)(mod_base + l->fileofs);
4521         if (l->filelen % sizeof(*in))
4522                 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4523         count = l->filelen / sizeof(*in);
4524         out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4525
4526         loadmodel->brushq3.data_effects = out;
4527         loadmodel->brushq3.num_effects = count;
4528
4529         for (i = 0;i < count;i++, in++, out++)
4530         {
4531                 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4532                 n = LittleLong(in->brushindex);
4533                 if (n >= loadmodel->brush.num_brushes)
4534                 {
4535                         Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4536                         n = -1;
4537                 }
4538                 out->brushindex = n;
4539                 out->unknown = LittleLong(in->unknown);
4540         }
4541 }
4542
4543 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4544 {
4545         q3dvertex_t *in;
4546         int i, count;
4547
4548         in = (q3dvertex_t *)(mod_base + l->fileofs);
4549         if (l->filelen % sizeof(*in))
4550                 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4551         loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4552         loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4553         loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4554         loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4555         loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4556         loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4557
4558         for (i = 0;i < count;i++, in++)
4559         {
4560                 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4561                 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4562                 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4563                 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4564                 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4565                 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4566                 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4567                 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4568                 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4569                 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4570                 // svector/tvector are calculated later in face loading
4571                 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4572                 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4573                 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4574                 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4575         }
4576 }
4577
4578 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4579 {
4580         int *in;
4581         int *out;
4582         int i, count;
4583
4584         in = (int *)(mod_base + l->fileofs);
4585         if (l->filelen % sizeof(int[3]))
4586                 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4587         count = l->filelen / sizeof(*in);
4588         out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4589
4590         loadmodel->brushq3.num_triangles = count / 3;
4591         loadmodel->brushq3.data_element3i = out;
4592
4593         for (i = 0;i < count;i++, in++, out++)
4594         {
4595                 *out = LittleLong(*in);
4596                 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4597                 {
4598                         Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4599                         *out = 0;
4600                 }
4601         }
4602 }
4603
4604 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4605 {
4606         q3dlightmap_t *in;
4607         rtexture_t **out;
4608         int i, count;
4609
4610         if (!l->filelen)
4611                 return;
4612         in = (q3dlightmap_t *)(mod_base + l->fileofs);
4613         if (l->filelen % sizeof(*in))
4614                 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4615         count = l->filelen / sizeof(*in);
4616         out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4617
4618         loadmodel->brushq3.data_lightmaps = out;
4619         loadmodel->brushq3.num_lightmaps = count;
4620
4621         for (i = 0;i < count;i++, in++, out++)
4622                 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4623 }
4624
4625 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4626 {
4627         q3dface_t *in, *oldin;
4628         msurface_t *out, *oldout;
4629         int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4630         //int *originalelement3i;
4631         //int *originalneighbor3i;
4632         float *originalvertex3f;
4633         //float *originalsvector3f;
4634         //float *originaltvector3f;
4635         float *originalnormal3f;
4636         float *originalcolor4f;
4637         float *originaltexcoordtexture2f;
4638         float *originaltexcoordlightmap2f;
4639         float *v;
4640
4641         in = (q3dface_t *)(mod_base + l->fileofs);
4642         if (l->filelen % sizeof(*in))
4643                 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4644         count = l->filelen / sizeof(*in);
4645         out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4646
4647         loadmodel->data_surfaces = out;
4648         loadmodel->num_surfaces = count;
4649
4650         // deluxemapped q3bsp files have an even number of lightmaps, and surfaces
4651         // always index even numbered ones (0, 2, 4, ...), the odd numbered
4652         // lightmaps are the deluxemaps (light direction textures), so if we
4653         // encounter any odd numbered lightmaps it is not a deluxemapped bsp, it
4654         // is also not a deluxemapped bsp if it has an odd number of lightmaps or
4655         // less than 2
4656         loadmodel->brushq3.deluxemapping = true;
4657         loadmodel->brushq3.deluxemapping_modelspace = true;
4658         if (loadmodel->brushq3.num_lightmaps >= 2 && !(loadmodel->brushq3.num_lightmaps & 1))
4659         {
4660                 for (i = 0;i < count;i++)
4661                 {
4662                         n = LittleLong(in[i].lightmapindex);
4663                         if (n >= 0 && ((n & 1) || n + 1 >= loadmodel->brushq3.num_lightmaps))
4664                         {
4665                                 loadmodel->brushq3.deluxemapping = false;
4666                                 break;
4667                         }
4668                 }
4669         }
4670         else
4671                 loadmodel->brushq3.deluxemapping = false;
4672         Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4673
4674         i = 0;
4675         oldi = i;
4676         oldin = in;
4677         oldout = out;
4678         meshvertices = 0;
4679         meshtriangles = 0;
4680         for (;i < count;i++, in++, out++)
4681         {
4682                 // check face type first
4683                 type = LittleLong(in->type);
4684                 if (type != Q3FACETYPE_POLYGON
4685                  && type != Q3FACETYPE_PATCH
4686                  && type != Q3FACETYPE_MESH
4687                  && type != Q3FACETYPE_FLARE)
4688                 {
4689                         Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4690                         continue;
4691                 }
4692
4693                 n = LittleLong(in->textureindex);
4694                 if (n < 0 || n >= loadmodel->num_textures)
4695                 {
4696                         Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4697                         continue;
4698                 }
4699                 out->texture = loadmodel->data_textures + n;
4700                 n = LittleLong(in->effectindex);
4701                 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4702                 {
4703                         if (developer.integer >= 100)
4704                                 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4705                         n = -1;
4706                 }
4707                 if (n == -1)
4708                         out->effect = NULL;
4709                 else
4710                         out->effect = loadmodel->brushq3.data_effects + n;
4711                 n = LittleLong(in->lightmapindex);
4712                 if (n >= loadmodel->brushq3.num_lightmaps)
4713                 {
4714                         Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4715                         n = -1;
4716                 }
4717                 else if (n < 0)
4718                         n = -1;
4719                 if (n == -1)
4720                 {
4721                         out->lightmaptexture = NULL;
4722                         out->deluxemaptexture = r_texture_blanknormalmap;
4723                 }
4724                 else
4725                 {
4726                         out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4727                         if (loadmodel->brushq3.deluxemapping)
4728                                 out->deluxemaptexture = loadmodel->brushq3.data_lightmaps[n+1];
4729                         else
4730                                 out->deluxemaptexture = r_texture_blanknormalmap;
4731                 }
4732
4733                 firstvertex = LittleLong(in->firstvertex);
4734                 numvertices = LittleLong(in->numvertices);
4735                 firstelement = LittleLong(in->firstelement);
4736                 numtriangles = LittleLong(in->numelements) / 3;
4737                 if (numtriangles * 3 != LittleLong(in->numelements))
4738                 {
4739                         Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): numelements %i is not a multiple of 3\n", i, out->texture->name, LittleLong(in->numelements));
4740                         continue;
4741                 }
4742                 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4743                 {
4744                         Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid vertex range %i : %i (%i vertices)\n", i, out->texture->name, firstvertex, firstvertex + numvertices, loadmodel->brushq3.num_vertices);
4745                         continue;
4746                 }
4747                 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4748                 {
4749                         Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid element range %i : %i (%i elements)\n", i, out->texture->name, firstelement, firstelement + numtriangles * 3, loadmodel->brushq3.num_triangles * 3);
4750                         continue;
4751                 }
4752                 switch(type)
4753                 {
4754                 case Q3FACETYPE_POLYGON:
4755                 case Q3FACETYPE_MESH:
4756                         // no processing necessary
4757                         break;
4758                 case Q3FACETYPE_PATCH:
4759                         patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4760                         patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4761                         if (numvertices != (patchsize[0] * patchsize[1]) || patchsize[0] < 3 || patchsize[1] < 3 || !(patchsize[0] & 1) || !(patchsize[1] & 1) || patchsize[0] * patchsize[1] >= min(r_subdivisions_maxvertices.integer, r_subdivisions_collision_maxvertices.integer))
4762                         {
4763                                 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4764                                 continue;
4765                         }
4766                         originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4767                         // convert patch to Q3FACETYPE_MESH
4768                         xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4769                         ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4770                         // bound to user settings
4771                         xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4772                         ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4773                         // bound to sanity settings
4774                         xtess = bound(1, xtess, 1024);
4775                         ytess = bound(1, ytess, 1024);
4776                         // bound to user limit on vertices
4777                         while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4778                         {
4779                                 if (xtess > ytess)
4780                                         xtess--;
4781                                 else
4782                                         ytess--;
4783                         }
4784                         finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4785                         finalheight = ((patchsize[1] - 1) * ytess) + 1;
4786                         numvertices = finalwidth * finalheight;
4787                         numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4788                         break;
4789                 case Q3FACETYPE_FLARE:
4790                         if (developer.integer >= 100)
4791                                 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4792                         // don't render it
4793                         continue;
4794                 }
4795                 out->num_vertices = numvertices;
4796                 out->num_triangles = numtriangles;
4797                 meshvertices += out->num_vertices;
4798                 meshtriangles += out->num_triangles;
4799         }
4800
4801         i = oldi;
4802         in = oldin;
4803         out = oldout;
4804         Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4805         meshvertices = 0;
4806         meshtriangles = 0;
4807         for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
4808         {
4809                 if (out->num_vertices < 3 || out->num_triangles < 1)
4810                         continue;
4811
4812                 type = LittleLong(in->type);
4813                 firstvertex = LittleLong(in->firstvertex);
4814                 firstelement = LittleLong(in->firstelement);
4815                 out->num_firstvertex = meshvertices;
4816                 out->num_firsttriangle = meshtriangles;
4817                 switch(type)
4818                 {
4819                 case Q3FACETYPE_POLYGON:
4820                 case Q3FACETYPE_MESH:
4821                         // no processing necessary
4822                         for (j = 0;j < out->num_vertices;j++)
4823                         {
4824                                 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4825                                 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4826                                 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4827                                 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
4828                                 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
4829                                 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
4830                                 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4831                                 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4832                                 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4833                                 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4834                                 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4835                                 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4836                                 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4837                                 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4838                         }
4839                         for (j = 0;j < out->num_triangles*3;j++)
4840                                 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4841                         break;
4842                 case Q3FACETYPE_PATCH:
4843                         patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4844                         patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4845                         originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4846                         originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
4847                         originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4848                         originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4849                         originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4850                         // convert patch to Q3FACETYPE_MESH
4851                         xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4852                         ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4853                         // bound to user settings
4854                         xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4855                         ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4856                         // bound to sanity settings
4857                         xtess = bound(1, xtess, 1024);
4858                         ytess = bound(1, ytess, 1024);
4859                         // bound to user limit on vertices
4860                         while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4861                         {
4862                                 if (xtess > ytess)
4863                                         xtess--;
4864                                 else
4865                                         ytess--;
4866                         }
4867                         finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4868                         finalheight = ((patchsize[1] - 1) * ytess) + 1;
4869                         finalvertices = finalwidth * finalheight;
4870                         finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4871                         type = Q3FACETYPE_MESH;
4872                         // generate geometry
4873                         // (note: normals are skipped because they get recalculated)
4874                         Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4875                         Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
4876                         Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4877                         Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4878                         Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4879                         Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4880                         out->num_triangles = Mod_RemoveDegenerateTriangles(out->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), loadmodel->surfmesh.data_vertex3f);
4881                         if (developer.integer >= 100)
4882                         {
4883                                 if (out->num_triangles < finaltriangles)
4884                                         Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles, %i degenerate triangles removed (leaving %i)\n", patchsize[0], patchsize[1], out->num_vertices, finaltriangles, finaltriangles - out->num_triangles, out->num_triangles);
4885                                 else
4886                                         Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles\n", patchsize[0], patchsize[1], out->num_vertices, out->num_triangles);
4887                         }
4888                         // q3map does not put in collision brushes for curves... ugh
4889                         // build the lower quality collision geometry
4890                         xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4891                         ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4892                         // bound to user settings
4893                         xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4894                         ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4895                         // bound to sanity settings
4896                         xtess = bound(1, xtess, 1024);
4897                         ytess = bound(1, ytess, 1024);
4898                         // bound to user limit on vertices
4899                         while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4900                         {
4901                                 if (xtess > ytess)
4902                                         xtess--;
4903                                 else
4904                                         ytess--;
4905                         }
4906                         finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4907                         finalheight = ((patchsize[1] - 1) * ytess) + 1;
4908                         finalvertices = finalwidth * finalheight;
4909                         finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4910
4911                         out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4912                         out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4913                         out->num_collisionvertices = finalvertices;
4914                         out->num_collisiontriangles = finaltriangles;
4915                         Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4916                         Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
4917
4918                         //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
4919                         Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
4920
4921                         oldnumtriangles = out->num_triangles;
4922                         oldnumtriangles2 = out->num_collisiontriangles;
4923                         out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
4924                         if (developer.integer >= 100)
4925                                 Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve became %i:%i vertices / %i:%i triangles (%i:%i degenerate)\n", patchsize[0], patchsize[1], out->num_vertices, out->num_collisionvertices, oldnumtriangles, oldnumtriangles2, oldnumtriangles - out->num_triangles, oldnumtriangles2 - out->num_collisiontriangles);
4926                         break;
4927                 default:
4928                         break;
4929                 }
4930                 meshvertices += out->num_vertices;
4931                 meshtriangles += out->num_triangles;
4932                 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
4933                         if ((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
4934                                 invalidelements++;
4935                 if (invalidelements)
4936                 {
4937                         Con_Printf("Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, firstvertex, out->num_vertices, firstelement, out->num_triangles * 3);
4938                         for (j = 0;j < out->num_triangles * 3;j++)
4939                         {
4940                                 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
4941                                 if ((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
4942                                         (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
4943                         }
4944                         Con_Print("\n");
4945                 }
4946                 // calculate a bounding box
4947                 VectorClear(out->mins);
4948                 VectorClear(out->maxs);
4949                 if (out->num_vertices)
4950                 {
4951                         VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
4952                         VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
4953                         for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
4954                         {
4955                                 out->mins[0] = min(out->mins[0], v[0]);
4956                                 out->maxs[0] = max(out->maxs[0], v[0]);
4957                                 out->mins[1] = min(out->mins[1], v[1]);
4958                                 out->maxs[1] = max(out->maxs[1], v[1]);
4959                                 out->mins[2] = min(out->mins[2], v[2]);
4960                                 out->maxs[2] = max(out->maxs[2], v[2]);
4961                         }
4962                         out->mins[0] -= 1.0f;
4963                         out->mins[1] -= 1.0f;
4964                         out->mins[2] -= 1.0f;
4965                         out->maxs[0] += 1.0f;
4966                         out->maxs[1] += 1.0f;
4967                         out->maxs[2] += 1.0f;
4968                 }
4969                 // set lightmap styles for consistency with q1bsp
4970                 //out->lightmapinfo->styles[0] = 0;
4971                 //out->lightmapinfo->styles[1] = 255;
4972                 //out->lightmapinfo->styles[2] = 255;
4973                 //out->lightmapinfo->styles[3] = 255;
4974         }
4975
4976         // for per pixel lighting
4977         Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
4978
4979         // free the no longer needed vertex data
4980         loadmodel->brushq3.num_vertices = 0;
4981         Mem_Free(loadmodel->brushq3.data_vertex3f);
4982         loadmodel->brushq3.data_vertex3f = NULL;
4983         loadmodel->brushq3.data_normal3f = NULL;
4984         loadmodel->brushq3.data_texcoordtexture2f = NULL;
4985         loadmodel->brushq3.data_texcoordlightmap2f = NULL;
4986         loadmodel->brushq3.data_color4f = NULL;
4987         // free the no longer needed triangle data
4988         loadmodel->brushq3.num_triangles = 0;
4989         Mem_Free(loadmodel->brushq3.data_element3i);
4990         loadmodel->brushq3.data_element3i = NULL;
4991 }
4992
4993 static void Mod_Q3BSP_LoadModels(lump_t *l)
4994 {
4995         q3dmodel_t *in;
4996         q3dmodel_t *out;
4997         int i, j, n, c, count;
4998
4999         in = (q3dmodel_t *)(mod_base + l->fileofs);
5000         if (l->filelen % sizeof(*in))
5001                 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5002         count = l->filelen / sizeof(*in);
5003         out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5004
5005         loadmodel->brushq3.data_models = out;
5006         loadmodel->brushq3.num_models = count;
5007
5008         for (i = 0;i < count;i++, in++, out++)
5009         {
5010                 for (j = 0;j < 3;j++)
5011                 {
5012                         out->mins[j] = LittleFloat(in->mins[j]);
5013                         out->maxs[j] = LittleFloat(in->maxs[j]);
5014                 }
5015                 n = LittleLong(in->firstface);
5016                 c = LittleLong(in->numfaces);
5017                 if (n < 0 || n + c > loadmodel->num_surfaces)
5018                         Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5019                 out->firstface = n;
5020                 out->numfaces = c;
5021                 n = LittleLong(in->firstbrush);
5022                 c = LittleLong(in->numbrushes);
5023                 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5024                         Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5025                 out->firstbrush = n;
5026                 out->numbrushes = c;
5027         }
5028 }
5029
5030 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5031 {
5032         int *in;
5033         int *out;
5034         int i, n, count;
5035
5036         in = (int *)(mod_base + l->fileofs);
5037         if (l->filelen % sizeof(*in))
5038                 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
5039         count = l->filelen / sizeof(*in);
5040         out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5041
5042         loadmodel->brush.data_leafbrushes = out;
5043         loadmodel->brush.num_leafbrushes = count;
5044
5045         for (i = 0;i < count;i++, in++, out++)
5046         {
5047                 n = LittleLong(*in);
5048                 if (n < 0 || n >= loadmodel->brush.num_brushes)
5049                         Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5050                 *out = n;
5051         }
5052 }
5053
5054 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5055 {
5056         int *in;
5057         int *out;
5058         int i, n, count;
5059
5060         in = (int *)(mod_base + l->fileofs);
5061         if (l->filelen % sizeof(*in))
5062                 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5063         count = l->filelen / sizeof(*in);
5064         out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5065
5066         loadmodel->brush.data_leafsurfaces = out;
5067         loadmodel->brush.num_leafsurfaces = count;
5068
5069         for (i = 0;i < count;i++, in++, out++)
5070         {
5071                 n = LittleLong(*in);
5072                 if (n < 0 || n >= loadmodel->num_surfaces)
5073                         Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5074                 *out = n;
5075         }
5076 }
5077
5078 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5079 {
5080         q3dleaf_t *in;
5081         mleaf_t *out;
5082         int i, j, n, c, count;
5083
5084         in = (q3dleaf_t *)(mod_base + l->fileofs);
5085         if (l->filelen % sizeof(*in))
5086                 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5087         count = l->filelen / sizeof(*in);
5088         out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5089
5090         loadmodel->brush.data_leafs = out;
5091         loadmodel->brush.num_leafs = count;
5092
5093         for (i = 0;i < count;i++, in++, out++)
5094         {
5095                 out->parent = NULL;
5096                 out->plane = NULL;
5097                 out->clusterindex = LittleLong(in->clusterindex);
5098                 out->areaindex = LittleLong(in->areaindex);
5099                 for (j = 0;j < 3;j++)
5100                 {
5101                         // yes the mins/maxs are ints
5102                         out->mins[j] = LittleLong(in->mins[j]) - 1;
5103                         out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5104                 }
5105                 n = LittleLong(in->firstleafface);
5106                 c = LittleLong(in->numleaffaces);
5107                 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5108                         Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5109                 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5110                 out->numleafsurfaces = c;
5111                 n = LittleLong(in->firstleafbrush);
5112                 c = LittleLong(in->numleafbrushes);
5113                 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5114                         Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5115                 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5116                 out->numleafbrushes = c;
5117         }
5118 }
5119
5120 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5121 {
5122         q3dnode_t *in;
5123         mnode_t *out;
5124         int i, j, n, count;
5125
5126         in = (q3dnode_t *)(mod_base + l->fileofs);
5127         if (l->filelen % sizeof(*in))
5128                 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5129         count = l->filelen / sizeof(*in);
5130         out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5131
5132         loadmodel->brush.data_nodes = out;
5133         loadmodel->brush.num_nodes = count;
5134
5135         for (i = 0;i < count;i++, in++, out++)
5136         {
5137                 out->parent = NULL;
5138                 n = LittleLong(in->planeindex);
5139                 if (n < 0 || n >= loadmodel->brush.num_planes)
5140                         Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5141                 out->plane = loadmodel->brush.data_planes + n;
5142                 for (j = 0;j < 2;j++)
5143                 {
5144                         n = LittleLong(in->childrenindex[j]);
5145                         if (n >= 0)
5146                         {
5147                                 if (n >= loadmodel->brush.num_nodes)
5148                                         Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5149                                 out->children[j] = loadmodel->brush.data_nodes + n;
5150                         }
5151                         else
5152                         {
5153                                 n = -1 - n;
5154                                 if (n >= loadmodel->brush.num_leafs)
5155                                         Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5156                                 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5157                         }
5158                 }
5159                 for (j = 0;j < 3;j++)
5160                 {
5161                         // yes the mins/maxs are ints
5162                         out->mins[j] = LittleLong(in->mins[j]) - 1;
5163                         out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5164                 }
5165         }
5166
5167         // set the parent pointers
5168         Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5169 }
5170
5171 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5172 {
5173         q3dlightgrid_t *in;
5174         q3dlightgrid_t *out;
5175         int count;
5176
5177         in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5178         if (l->filelen % sizeof(*in))
5179                 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5180         loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5181         loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5182         loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5183         loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5184         loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5185         loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5186         loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5187         loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5188         loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5189         loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5190         loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5191         loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5192         count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5193         Matrix4x4_CreateScale3(&loadmodel->brushq3.num_lightgrid_indexfromworld, loadmodel->brushq3.num_lightgrid_scale[0], loadmodel->brushq3.num_lightgrid_scale[1], loadmodel->brushq3.num_lightgrid_scale[2]);
5194         Matrix4x4_ConcatTranslate(&loadmodel->brushq3.num_lightgrid_indexfromworld, -loadmodel->brushq3.num_lightgrid_imins[0] * loadmodel->brushq3.num_lightgrid_cellsize[0], -loadmodel->brushq3.num_lightgrid_imins[1] * loadmodel->brushq3.num_lightgrid_cellsize[1], -loadmodel->brushq3.num_lightgrid_imins[2] * loadmodel->brushq3.num_lightgrid_cellsize[2]);
5195
5196         // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5197         if (l->filelen)
5198         {
5199                 if (l->filelen < count * (int)sizeof(*in))
5200                         Host_Error("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, count * sizeof(*in), loadmodel->brushq3.num_lightgrid_dimensions[0], loadmodel->brushq3.num_lightgrid_dimensions[1], loadmodel->brushq3.num_lightgrid_dimensions[2]);
5201                 if (l->filelen != count * (int)sizeof(*in))
5202                         Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i", count * sizeof(*in), l->filelen);
5203                 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5204                 loadmodel->brushq3.data_lightgrid = out;
5205                 loadmodel->brushq3.num_lightgrid = count;
5206                 // no swapping or validation necessary
5207                 memcpy(out, in, count * (int)sizeof(*out));
5208         }
5209 }
5210
5211 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5212 {
5213         q3dpvs_t *in;
5214         int totalchains;
5215
5216         if (l->filelen == 0)
5217         {
5218                 int i;
5219                 // unvised maps often have cluster indices even without pvs, so check
5220                 // leafs to find real number of clusters
5221                 loadmodel->brush.num_pvsclusters = 1;
5222                 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5223                         loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5224
5225                 // create clusters
5226                 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5227                 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5228                 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5229                 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5230                 return;
5231         }
5232
5233         in = (q3dpvs_t *)(mod_base + l->fileofs);
5234         if (l->filelen < 9)
5235                 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5236
5237         loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5238         loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5239         if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5240                 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5241         totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5242         if (l->filelen < totalchains + (int)sizeof(*in))
5243                 Host_Error("Mod_Q3BSP_LoadPVS: lump too small ((numclusters = %i) * (chainlength = %i) + sizeof(q3dpvs_t) == %i bytes, lump is %i bytes)", loadmodel->brush.num_pvsclusters, loadmodel->brush.num_pvsclusterbytes, totalchains + sizeof(*in), l->filelen);
5244
5245         loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5246         memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5247 }
5248
5249 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5250 {
5251         int i, j, k, index[3];
5252         float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch;
5253         q3dlightgrid_t *a, *s;
5254         if (!model->brushq3.num_lightgrid)
5255         {
5256                 ambientcolor[0] = 1;
5257                 ambientcolor[1] = 1;
5258                 ambientcolor[2] = 1;
5259                 return;
5260         }
5261         Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5262         //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5263         //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5264         transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5265         transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5266         transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5267         index[0] = (int)floor(transformed[0]);
5268         index[1] = (int)floor(transformed[1]);
5269         index[2] = (int)floor(transformed[2]);
5270         //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5271         // now lerp the values
5272         VectorClear(diffusenormal);
5273         a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5274         for (k = 0;k < 2;k++)
5275         {
5276                 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5277                 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5278                         continue;
5279                 for (j = 0;j < 2;j++)
5280                 {
5281                         blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5282                         if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5283                                 continue;
5284                         for (i = 0;i < 2;i++)
5285                         {
5286                                 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0])));
5287                                 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5288                                         continue;
5289                                 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5290                                 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5291                                 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5292                                 pitch = s->diffusepitch * M_PI / 128;
5293                                 yaw = s->diffuseyaw * M_PI / 128;
5294                                 sinpitch = sin(pitch);
5295                                 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5296                                 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5297                                 diffusenormal[2] += blend * (cos(pitch));
5298                                 //Con_Printf("blend %f: ambient %i %i %i, diffuse %i %i %i, diffusepitch %i diffuseyaw %i (%f %f, normal %f %f %f)\n", blend, s->ambientrgb[0], s->ambientrgb[1], s->ambientrgb[2], s->diffusergb[0], s->diffusergb[1], s->diffusergb[2], s->diffusepitch, s->diffuseyaw, pitch, yaw, (cos(yaw) * cospitch), (sin(yaw) * cospitch), (-sin(pitch)));
5299                         }
5300                 }
5301         }
5302         VectorNormalize(diffusenormal);
5303         //Con_Printf("result: ambient %f %f %f diffuse %f %f %f diffusenormal %f %f %f\n", ambientcolor[0], ambientcolor[1], ambientcolor[2], diffusecolor[0], diffusecolor[1], diffusecolor[2], diffusenormal[0], diffusenormal[1], diffusenormal[2]);
5304 }
5305
5306 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5307 {
5308         int i;
5309         mleaf_t *leaf;
5310         colbrushf_t *brush;
5311         // find which leaf the point is in
5312         while (node->plane)
5313                 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5314         // point trace the brushes
5315         leaf = (mleaf_t *)node;
5316         for (i = 0;i < leaf->numleafbrushes;i++)
5317         {
5318                 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5319                 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5320                 {
5321                         brush->markframe = markframe;
5322                         Collision_TracePointBrushFloat(trace, point, brush);
5323                 }
5324         }
5325         // can't do point traces on curves (they have no thickness)
5326 }
5327
5328 static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
5329 {
5330         int i, startside, endside;
5331         float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5332         mleaf_t *leaf;
5333         msurface_t *surface;
5334         mplane_t *plane;
5335         colbrushf_t *brush;
5336         // walk the tree until we hit a leaf, recursing for any split cases
5337         while (node->plane)
5338         {
5339                 plane = node->plane;
5340                 // axial planes are much more common than non-axial, so an optimized
5341                 // axial case pays off here
5342                 if (plane->type < 3)
5343                 {
5344                         dist1 = start[plane->type] - plane->dist;
5345                         dist2 = end[plane->type] - plane->dist;
5346                 }
5347                 else
5348                 {
5349                         dist1 = DotProduct(start, plane->normal) - plane->dist;
5350                         dist2 = DotProduct(end, plane->normal) - plane->dist;
5351                 }
5352                 startside = dist1 < 0;
5353                 endside = dist2 < 0;
5354                 if (startside == endside)
5355                 {
5356                         // most of the time the line fragment is on one side of the plane
5357                         node = node->children[startside];
5358                 }
5359                 else
5360                 {
5361                         // line crosses node plane, split the line
5362                         dist1 = PlaneDiff(linestart, plane);
5363                         dist2 = PlaneDiff(lineend, plane);
5364                         midfrac = dist1 / (dist1 - dist2);
5365                         VectorLerp(linestart, midfrac, lineend, mid);
5366                         // take the near side first
5367                         Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5368                         // if we found an impact on the front side, don't waste time
5369                         // exploring the far side
5370                         if (midfrac <= trace->realfraction)
5371                                 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5372                         return;
5373                 }
5374         }
5375         // hit a leaf
5376         nodesegmentmins[0] = min(start[0], end[0]) - 1;
5377         nodesegmentmins[1] = min(start[1], end[1]) - 1;
5378         nodesegmentmins[2] = min(start[2], end[2]) - 1;
5379         nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5380         nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5381         nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5382         // line trace the brushes
5383         leaf = (mleaf_t *)node;
5384         for (i = 0;i < leaf->numleafbrushes;i++)
5385         {
5386                 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5387                 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5388                 {
5389                         brush->markframe = markframe;
5390                         Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5391                 }
5392         }
5393         // can't do point traces on curves (they have no thickness)
5394         if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5395         {
5396                 // line trace the curves
5397                 for (i = 0;i < leaf->numleafsurfaces;i++)
5398                 {
5399                         surface = model->data_surfaces + leaf->firstleafsurface[i];
5400                         if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5401                         {
5402                                 surface->collisionmarkframe = markframe;
5403                                 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5404                         }
5405                 }
5406         }
5407 }
5408
5409 static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
5410 {
5411         int i;
5412         int sides;
5413         mleaf_t *leaf;
5414         colbrushf_t *brush;
5415         msurface_t *surface;
5416         mplane_t *plane;
5417         float nodesegmentmins[3], nodesegmentmaxs[3];
5418         // walk the tree until we hit a leaf, recursing for any split cases
5419         while (node->plane)
5420         {
5421                 plane = node->plane;
5422                 // axial planes are much more common than non-axial, so an optimized
5423                 // axial case pays off here
5424                 if (plane->type < 3)
5425                 {
5426                         // this is an axial plane, compare bounding box directly to it and
5427                         // recurse sides accordingly
5428                         // recurse down node sides
5429                         // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5430                         //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5431                         //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5432                         sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5433                 }
5434                 else
5435                 {
5436                         // this is a non-axial plane, so check if the start and end boxes
5437                         // are both on one side of the plane to handle 'diagonal' cases
5438                         sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5439                 }
5440                 if (sides == 3)
5441                 {
5442                         // segment crosses plane
5443                         Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5444                         sides = 2;
5445                 }
5446                 // if sides == 0 then the trace itself is bogus (Not A Number values),
5447                 // in this case we simply pretend the trace hit nothing
5448                 if (sides == 0)
5449                         return; // ERROR: NAN bounding box!
5450                 // take whichever side the segment box is on
5451                 node = node->children[sides - 1];
5452         }
5453         nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5454         nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5455         nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5456         nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5457         nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5458         nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5459         // hit a leaf
5460         leaf = (mleaf_t *)node;
5461         for (i = 0;i < leaf->numleafbrushes;i++)
5462         {
5463                 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5464                 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5465                 {
5466                         brush->markframe = markframe;
5467                         Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5468                 }
5469         }
5470         if (mod_q3bsp_curves_collisions.integer)
5471         {
5472                 for (i = 0;i < leaf->numleafsurfaces;i++)
5473                 {
5474                         surface = model->data_surfaces + leaf->firstleafsurface[i];
5475                         if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5476                         {
5477                                 surface->collisionmarkframe = markframe;
5478                                 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5479                         }
5480                 }
5481         }
5482 }
5483
5484 static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
5485 {
5486         int i;
5487         float segmentmins[3], segmentmaxs[3];
5488         static int markframe = 0;
5489         msurface_t *surface;
5490         q3mbrush_t *brush;
5491         memset(trace, 0, sizeof(*trace));
5492         trace->fraction = 1;
5493         trace->realfraction = 1;
5494         trace->hitsupercontentsmask = hitsupercontentsmask;
5495         if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5496         {
5497                 if (VectorCompare(start, end))
5498                 {
5499                         // point trace
5500                         if (model->brush.submodel)
5501                         {
5502                                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5503                                         if (brush->colbrushf)
5504                                                 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5505                         }
5506                         else
5507                                 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5508                 }
5509                 else
5510                 {
5511                         // line trace
5512                         segmentmins[0] = min(start[0], end[0]) - 1;
5513                         segmentmins[1] = min(start[1], end[1]) - 1;
5514                         segmentmins[2] = min(start[2], end[2]) - 1;
5515                         segmentmaxs[0] = max(start[0], end[0]) + 1;
5516                         segmentmaxs[1] = max(start[1], end[1]) + 1;
5517                         segmentmaxs[2] = max(start[2], end[2]) + 1;
5518                         if (model->brush.submodel)
5519                         {
5520                                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5521                                         if (brush->colbrushf)
5522                                                 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5523                                 if (mod_q3bsp_curves_collisions.integer)
5524                                         for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5525                                                 if (surface->num_collisiontriangles)
5526                                                         Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5527                         }
5528                         else
5529                                 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5530                 }
5531         }
5532         else
5533         {
5534                 // box trace, performed as brush trace
5535                 colbrushf_t *thisbrush_start, *thisbrush_end;
5536                 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5537                 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5538                 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5539                 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5540                 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5541                 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5542                 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5543                 VectorAdd(start, boxmins, boxstartmins);
5544                 VectorAdd(start, boxmaxs, boxstartmaxs);
5545                 VectorAdd(end, boxmins, boxendmins);
5546                 VectorAdd(end, boxmaxs, boxendmaxs);
5547                 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5548                 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5549                 if (model->brush.submodel)
5550                 {
5551                         for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5552                                 if (brush->colbrushf)
5553                                         Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5554                         if (mod_q3bsp_curves_collisions.integer)
5555                                 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5556                                         if (surface->num_collisiontriangles)
5557                                                 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5558                 }
5559                 else
5560                         Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5561         }
5562 }
5563
5564 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5565 {
5566         int supercontents = 0;
5567         if (nativecontents & CONTENTSQ3_SOLID)
5568                 supercontents |= SUPERCONTENTS_SOLID;
5569         if (nativecontents & CONTENTSQ3_WATER)
5570                 supercontents |= SUPERCONTENTS_WATER;
5571         if (nativecontents & CONTENTSQ3_SLIME)
5572                 supercontents |= SUPERCONTENTS_SLIME;
5573         if (nativecontents & CONTENTSQ3_LAVA)
5574                 supercontents |= SUPERCONTENTS_LAVA;
5575         if (nativecontents & CONTENTSQ3_BODY)
5576                 supercontents |= SUPERCONTENTS_BODY;
5577         if (nativecontents & CONTENTSQ3_CORPSE)
5578                 supercontents |= SUPERCONTENTS_CORPSE;
5579         if (nativecontents & CONTENTSQ3_NODROP)
5580                 supercontents |= SUPERCONTENTS_NODROP;
5581         if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5582                 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5583         if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5584                 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5585         if (nativecontents & CONTENTSQ3_DONOTENTER)
5586                 supercontents |= SUPERCONTENTS_DONOTENTER;
5587         return supercontents;
5588 }
5589
5590 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5591 {
5592         int nativecontents = 0;
5593         if (supercontents & SUPERCONTENTS_SOLID)
5594                 nativecontents |= CONTENTSQ3_SOLID;
5595         if (supercontents & SUPERCONTENTS_WATER)
5596                 nativecontents |= CONTENTSQ3_WATER;
5597         if (supercontents & SUPERCONTENTS_SLIME)
5598                 nativecontents |= CONTENTSQ3_SLIME;
5599         if (supercontents & SUPERCONTENTS_LAVA)
5600                 nativecontents |= CONTENTSQ3_LAVA;
5601         if (supercontents & SUPERCONTENTS_BODY)
5602                 nativecontents |= CONTENTSQ3_BODY;
5603         if (supercontents & SUPERCONTENTS_CORPSE)
5604                 nativecontents |= CONTENTSQ3_CORPSE;
5605         if (supercontents & SUPERCONTENTS_NODROP)
5606                 nativecontents |= CONTENTSQ3_NODROP;
5607         if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5608                 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5609         if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5610                 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5611         if (supercontents & SUPERCONTENTS_DONOTENTER)
5612                 nativecontents |= CONTENTSQ3_DONOTENTER;
5613         return nativecontents;
5614 }
5615
5616 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5617 {
5618         int numleafs;
5619         while (node->plane)
5620         {
5621                 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5622                 node = node->children[1];
5623         }
5624         numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5625         if (loadmodel->brush.num_leafs < numleafs)
5626                 loadmodel->brush.num_leafs = numleafs;
5627 }
5628
5629 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5630 {
5631         int i, j, numshadowmeshtriangles;
5632         q3dheader_t *header;
5633         float corner[3], yawradius, modelradius;
5634         msurface_t *surface;
5635
5636         mod->type = mod_brushq3;
5637         mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5638         mod->numskins = 1;
5639
5640         header = (q3dheader_t *)buffer;
5641
5642         i = LittleLong(header->version);
5643         if (i != Q3BSPVERSION)
5644                 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5645         mod->brush.ishlbsp = false;
5646         mod->brush.ismcbsp = false;
5647         if (loadmodel->isworldmodel)
5648         {
5649                 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5650                 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5651         }
5652
5653         mod->soundfromcenter = true;
5654         mod->TraceBox = Mod_Q3BSP_TraceBox;
5655         mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5656         mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5657         mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5658         mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5659         mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5660         mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5661         mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5662         mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5663         mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5664         mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5665         mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5666         mod->Draw = R_Q1BSP_Draw;
5667         mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5668         mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5669         mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5670         mod->DrawLight = R_Q1BSP_DrawLight;
5671
5672         mod_base = (unsigned char *)header;
5673
5674         // swap all the lumps
5675         header->ident = LittleLong(header->ident);
5676         header->version = LittleLong(header->version);
5677         for (i = 0;i < Q3HEADER_LUMPS;i++)
5678         {
5679                 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5680                 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5681         }
5682
5683         mod->brush.qw_md4sum = 0;
5684         mod->brush.qw_md4sum2 = 0;
5685         for (i = 0;i < Q3HEADER_LUMPS;i++)
5686         {
5687                 if (i == Q3LUMP_ENTITIES)
5688                         continue;
5689                 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5690                 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
5691                         continue;
5692                 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5693         }
5694
5695         Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5696         Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5697         Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5698         Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5699         Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5700         Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5701         Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5702         Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5703         Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5704         Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5705         Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5706         Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5707         Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5708         Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5709         Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5710         Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5711         Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5712         loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5713
5714         // the MakePortals code works fine on the q3bsp data as well
5715         Mod_Q1BSP_MakePortals();
5716
5717         // make a single combined shadow mesh to allow optimized shadow volume creation
5718         numshadowmeshtriangles = 0;
5719         for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5720         {
5721                 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5722                 numshadowmeshtriangles += surface->num_triangles;
5723         }
5724         loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5725         for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5726                 if (surface->num_triangles > 0)
5727                         Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
5728         loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5729         Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5730
5731         loadmodel->brush.num_leafs = 0;
5732         Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5733
5734         if (loadmodel->isworldmodel)
5735         {
5736                 // clear out any stale submodels or worldmodels lying around
5737                 // if we did this clear before now, an error might abort loading and
5738                 // leave things in a bad state
5739                 Mod_RemoveStaleWorldModels(loadmodel);
5740         }
5741
5742         mod = loadmodel;
5743         for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5744         {
5745                 if (i > 0)
5746                 {
5747                         char name[10];
5748                         // LordHavoc: only register submodels if it is the world
5749                         // (prevents external bsp models from replacing world submodels with
5750                         //  their own)
5751                         if (!loadmodel->isworldmodel)
5752                                 continue;
5753                         // duplicate the basic information
5754                         sprintf(name, "*%i", i);
5755                         mod = Mod_FindName(name);
5756                         *mod = *loadmodel;
5757                         strcpy(mod->name, name);
5758                         // textures and memory belong to the main model
5759                         mod->texturepool = NULL;
5760                         mod->mempool = NULL;
5761                         mod->brush.GetPVS = NULL;
5762                         mod->brush.FatPVS = NULL;
5763                         mod->brush.BoxTouchingPVS = NULL;
5764                         mod->brush.BoxTouchingLeafPVS = NULL;
5765                         mod->brush.BoxTouchingVisibleLeafs = NULL;
5766                         mod->brush.FindBoxClusters = NULL;
5767                         mod->brush.LightPoint = NULL;
5768                         mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5769                 }
5770                 mod->brush.submodel = i;
5771
5772                 // make the model surface list (used by shadowing/lighting)
5773                 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5774                 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5775                 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5776                 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5777                 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5778                 for (j = 0;j < mod->nummodelsurfaces;j++)
5779                         mod->surfacelist[j] = mod->firstmodelsurface + j;
5780
5781                 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5782                 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5783                 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5784                 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5785                 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5786                 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5787                 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5788                 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5789                 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5790                 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5791                 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5792                 mod->yawmins[2] = mod->normalmins[2];
5793                 mod->yawmaxs[2] = mod->normalmaxs[2];
5794                 mod->radius = modelradius;
5795                 mod->radius2 = modelradius * modelradius;
5796
5797                 for (j = 0;j < mod->nummodelsurfaces;j++)
5798                         if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5799                                 break;
5800                 if (j < mod->nummodelsurfaces)
5801                         mod->DrawSky = R_Q1BSP_DrawSky;
5802         }
5803 }
5804
5805 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5806 {
5807         int i = LittleLong(((int *)buffer)[1]);
5808         if (i == Q3BSPVERSION)
5809                 Mod_Q3BSP_Load(mod,buffer, bufferend);
5810         else if (i == Q2BSPVERSION)
5811                 Mod_Q2BSP_Load(mod,buffer, bufferend);
5812         else
5813                 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
5814 }
5815
5816 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5817 {
5818         Host_Error("Mod_MAP_Load: not yet implemented");
5819 }
5820