model_alias.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
  25 static cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
  26
  27 void Mod_AliasInit (void)
  28 {
  29         Cvar_RegisterVariable(&r_mipskins);
  30 }
  31
  32 static void Mod_CalcAliasModelBBoxes (void)
  33 {
  34         int vnum, meshnum;
  35         float dist, yawradius, radius;
  36         aliasmesh_t *mesh;
  37         float *v;
  38         VectorClear(loadmodel->normalmins);
  39         VectorClear(loadmodel->normalmaxs);
  40         yawradius = 0;
  41         radius = 0;
  42         for (meshnum = 0, mesh = loadmodel->alias.aliasdata_meshes;meshnum < loadmodel->alias.aliasnum_meshes;meshnum++, mesh++)
  43         {
  44                 for (vnum = 0, v = mesh->data_aliasvertex3f;vnum < mesh->num_vertices * mesh->num_frames;vnum++, v += 3)
  45                 {
  46                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
  47                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
  48                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
  49                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
  50                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
  51                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
  52                         dist = v[0] * v[0] + v[1] * v[1];
  53                         if (yawradius < dist)
  54                                 yawradius = dist;
  55                         dist += v[2] * v[2];
  56                         if (radius < dist)
  57                                 radius = dist;
  58                 }
  59         }
  60         radius = sqrt(radius);
  61         yawradius = sqrt(yawradius);
  62         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
  63         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
  64         loadmodel->yawmins[2] = loadmodel->normalmins[2];
  65         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
  66         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
  67         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
  68         loadmodel->radius = radius;
  69         loadmodel->radius2 = radius * radius;
  70 }
  71
  72 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
  73 {
  74         int i, j;
  75         vec3_t temp;
  76         for (i = 0;i < inverts;i++)
  77         {
  78                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  79                         continue;
  80                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  81                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  82                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  83                 j = vertremap[i]; // not onseam
  84                 if (j >= 0)
  85                         VectorCopy(temp, out3f + j * 3);
  86                 j = vertremap[i+inverts]; // onseam
  87                 if (j >= 0)
  88                         VectorCopy(temp, out3f + j * 3);
  89         }
  90 }
  91
  92 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
  93 {
  94         int i, f, pose, groupframes;
  95         float interval;
  96         daliasframetype_t *pframetype;
  97         daliasframe_t *pinframe;
  98         daliasgroup_t *group;
  99         daliasinterval_t *intervals;
 100         animscene_t *scene;
 101         pose = 0;
 102         scene = loadmodel->animscenes;
 103         for (f = 0;f < loadmodel->numframes;f++)
 104         {
 105                 pframetype = (daliasframetype_t *)datapointer;
 106                 datapointer += sizeof(daliasframetype_t);
 107                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 108                 {
 109                         // a single frame is still treated as a group
 110                         interval = 0.1f;
 111                         groupframes = 1;
 112                 }
 113                 else
 114                 {
 115                         // read group header
 116                         group = (daliasgroup_t *)datapointer;
 117                         datapointer += sizeof(daliasgroup_t);
 118                         groupframes = LittleLong (group->numframes);
 119
 120                         // intervals (time per frame)
 121                         intervals = (daliasinterval_t *)datapointer;
 122                         datapointer += sizeof(daliasinterval_t) * groupframes;
 123
 124                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 125                         if (interval < 0.01f)
 126                                 Host_Error("Mod_MDL_LoadFrames: invalid interval");
 127                 }
 128
 129                 // get scene name from first frame
 130                 pinframe = (daliasframe_t *)datapointer;
 131
 132                 strcpy(scene->name, pinframe->name);
 133                 scene->firstframe = pose;
 134                 scene->framecount = groupframes;
 135                 scene->framerate = 1.0f / interval;
 136                 scene->loop = true;
 137                 scene++;
 138
 139                 // read frames
 140                 for (i = 0;i < groupframes;i++)
 141                 {
 142                         pinframe = (daliasframe_t *)datapointer;
 143                         datapointer += sizeof(daliasframe_t);
 144                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, vertremap);
 145                         Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
 146                         datapointer += sizeof(trivertx_t) * inverts;
 147                         pose++;
 148                 }
 149         }
 150 }
 151
 152 aliaslayer_t mod_alias_layersbuffer[16]; // 7 currently used
 153 void Mod_BuildAliasSkinFromSkinFrame(aliasskin_t *skin, skinframe_t *skinframe)
 154 {
 155         aliaslayer_t *layer;
 156
 157         memset(&mod_alias_layersbuffer, 0, sizeof(mod_alias_layersbuffer));
 158         layer = mod_alias_layersbuffer;
 159         layer->flags = ALIASLAYER_SPECULAR;
 160         layer->texture = skinframe->gloss;
 161         layer->nmap = skinframe->nmap;
 162         layer++;
 163         if (skinframe->merged != NULL)
 164         {
 165                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_COLORMAPPED;
 166                 layer->texture = skinframe->merged;
 167                 layer->nmap = skinframe->nmap;
 168                 layer++;
 169         }
 170         if (skinframe->base != NULL)
 171         {
 172                 layer->flags = ALIASLAYER_DIFFUSE;
 173                 if (skinframe->merged != NULL)
 174                         layer->flags |= ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED;
 175                 layer->texture = skinframe->base;
 176                 layer->nmap = skinframe->nmap;
 177                 layer++;
 178         }
 179         if (skinframe->pants != NULL)
 180         {
 181                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_PANTS;
 182                 layer->texture = skinframe->pants;
 183                 layer->nmap = skinframe->nmap;
 184                 layer++;
 185         }
 186         if (skinframe->shirt != NULL)
 187         {
 188                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_SHIRT;
 189                 layer->texture = skinframe->shirt;
 190                 layer->nmap = skinframe->nmap;
 191                 layer++;
 192         }
 193
 194         if (skinframe->glow != NULL)
 195         {
 196                 layer->flags = 0;
 197                 layer->texture = skinframe->glow;
 198                 layer++;
 199         }
 200
 201         layer->flags = ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS;
 202         layer->texture = skinframe->fog;
 203         layer++;
 204
 205         skin->flags = 0;
 206         // fog texture only exists if some pixels are transparent...
 207         if (skinframe->fog != NULL)
 208                 skin->flags |= ALIASSKIN_TRANSPARENT;
 209
 210         skin->num_layers = layer - mod_alias_layersbuffer;
 211         skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
 212         memcpy(skin->data_layers, mod_alias_layersbuffer, skin->num_layers * sizeof(aliaslayer_t));
 213 }
 214
 215 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)\n", loadmodel->name, VALUE, MIN, MAX);
 216 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)\n", loadmodel->name, VALUE, MIN, MAX);
 217 extern void R_Model_Alias_Draw(entity_render_t *ent);
 218 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 219 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 220 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
 221 void Mod_IDP0_Load(model_t *mod, void *buffer)
 222 {
 223         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 224         float scales, scalet, scale[3], translate[3], interval;
 225         mdl_t *pinmodel;
 226         stvert_t *pinstverts;
 227         dtriangle_t *pintriangles;
 228         daliasskintype_t *pinskintype;
 229         daliasskingroup_t *pinskingroup;
 230         daliasskininterval_t *pinskinintervals;
 231         daliasframetype_t *pinframetype;
 232         daliasgroup_t *pinframegroup;
 233         qbyte *datapointer, *startframes, *startskins;
 234         char name[MAX_QPATH];
 235         skinframe_t tempskinframe;
 236         animscene_t *tempskinscenes;
 237         skinframe_t *tempskinframes;
 238         float *vertst;
 239         int *vertonseam, *vertremap;
 240
 241         datapointer = buffer;
 242         pinmodel = (mdl_t *)datapointer;
 243         datapointer += sizeof(mdl_t);
 244
 245         version = LittleLong (pinmodel->version);
 246         if (version != ALIAS_VERSION)
 247                 Host_Error ("%s has wrong version number (%i should be %i)",
 248                                  loadmodel->name, version, ALIAS_VERSION);
 249
 250         loadmodel->type = mod_alias;
 251         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 252         loadmodel->DrawSky = NULL;
 253         loadmodel->Draw = R_Model_Alias_Draw;
 254         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 255         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 256         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 257
 258         loadmodel->alias.aliasnum_meshes = 1;
 259         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 260
 261         loadmodel->numskins = LittleLong(pinmodel->numskins);
 262         BOUNDI(loadmodel->numskins,0,256);
 263         skinwidth = LittleLong (pinmodel->skinwidth);
 264         BOUNDI(skinwidth,0,4096);
 265         skinheight = LittleLong (pinmodel->skinheight);
 266         BOUNDI(skinheight,0,4096);
 267         numverts = LittleLong(pinmodel->numverts);
 268         BOUNDI(numverts,0,65536);
 269         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->numtris);
 270         BOUNDI(loadmodel->alias.aliasdata_meshes->num_triangles,0,65536 / 3); // max elements limit, rather than max triangles limit
 271         loadmodel->numframes = LittleLong(pinmodel->numframes);
 272         BOUNDI(loadmodel->numframes,0,65536);
 273         loadmodel->synctype = LittleLong (pinmodel->synctype);
 274         BOUNDI(loadmodel->synctype,0,2);
 275         loadmodel->flags = LittleLong (pinmodel->flags);
 276
 277         for (i = 0;i < 3;i++)
 278         {
 279                 scale[i] = LittleFloat (pinmodel->scale[i]);
 280                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 281         }
 282
 283         startskins = datapointer;
 284         totalskins = 0;
 285         for (i = 0;i < loadmodel->numskins;i++)
 286         {
 287                 pinskintype = (daliasskintype_t *)datapointer;
 288                 datapointer += sizeof(daliasskintype_t);
 289                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 290                         groupskins = 1;
 291                 else
 292                 {
 293                         pinskingroup = (daliasskingroup_t *)datapointer;
 294                         datapointer += sizeof(daliasskingroup_t);
 295                         groupskins = LittleLong(pinskingroup->numskins);
 296                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 297                 }
 298
 299                 for (j = 0;j < groupskins;j++)
 300                 {
 301                         datapointer += skinwidth * skinheight;
 302                         totalskins++;
 303                 }
 304         }
 305
 306         pinstverts = (stvert_t *)datapointer;
 307         datapointer += sizeof(stvert_t) * numverts;
 308
 309         pintriangles = (dtriangle_t *)datapointer;
 310         datapointer += sizeof(dtriangle_t) * loadmodel->alias.aliasdata_meshes->num_triangles;
 311
 312         startframes = datapointer;
 313         loadmodel->alias.aliasdata_meshes->num_frames = 0;
 314         for (i = 0;i < loadmodel->numframes;i++)
 315         {
 316                 pinframetype = (daliasframetype_t *)datapointer;
 317                 datapointer += sizeof(daliasframetype_t);
 318                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 319                         groupframes = 1;
 320                 else
 321                 {
 322                         pinframegroup = (daliasgroup_t *)datapointer;
 323                         datapointer += sizeof(daliasgroup_t);
 324                         groupframes = LittleLong(pinframegroup->numframes);
 325                         datapointer += sizeof(daliasinterval_t) * groupframes;
 326                 }
 327
 328                 for (j = 0;j < groupframes;j++)
 329                 {
 330                         datapointer += sizeof(daliasframe_t);
 331                         datapointer += sizeof(trivertx_t) * numverts;
 332                         loadmodel->alias.aliasdata_meshes->num_frames++;
 333                 }
 334         }
 335
 336         // load the skins
 337         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 338         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 339         totalskins = 0;
 340         datapointer = startskins;
 341         for (i = 0;i < loadmodel->numskins;i++)
 342         {
 343                 pinskintype = (daliasskintype_t *)datapointer;
 344                 datapointer += sizeof(daliasskintype_t);
 345
 346                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 347                 {
 348                         groupskins = 1;
 349                         interval = 0.1f;
 350                 }
 351                 else
 352                 {
 353                         pinskingroup = (daliasskingroup_t *)datapointer;
 354                         datapointer += sizeof(daliasskingroup_t);
 355
 356                         groupskins = LittleLong (pinskingroup->numskins);
 357
 358                         pinskinintervals = (daliasskininterval_t *)datapointer;
 359                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 360
 361                         interval = LittleFloat(pinskinintervals[0].interval);
 362                         if (interval < 0.01f)
 363                                 Host_Error("Mod_IDP0_Load: invalid interval\n");
 364                 }
 365
 366                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 367                 loadmodel->skinscenes[i].firstframe = totalskins;
 368                 loadmodel->skinscenes[i].framecount = groupskins;
 369                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 370                 loadmodel->skinscenes[i].loop = true;
 371
 372                 for (j = 0;j < groupskins;j++)
 373                 {
 374                         if (groupskins > 1)
 375                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 376                         else
 377                                 sprintf (name, "%s_%i", loadmodel->name, i);
 378                         if (!Mod_LoadSkinFrame(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 379                                 Mod_LoadSkinFrame_Internal(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true, (qbyte *)datapointer, skinwidth, skinheight);
 380                         datapointer += skinwidth * skinheight;
 381                         totalskins++;
 382                 }
 383         }
 384         // check for skins that don't exist in the model, but do exist as external images
 385         // (this was added because yummyluv kept pestering me about support for it)
 386         for (;;)
 387         {
 388                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 389                 if (Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 390                 {
 391                         // expand the arrays to make room
 392                         tempskinscenes = loadmodel->skinscenes;
 393                         tempskinframes = loadmodel->skinframes;
 394                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 395                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 396                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 397                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 398                         Mem_Free(tempskinscenes);
 399                         Mem_Free(tempskinframes);
 400                         // store the info about the new skin
 401                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 402                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 403                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 404                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 405                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 406                         loadmodel->skinframes[totalskins] = tempskinframe;
 407                         loadmodel->numskins++;
 408                         totalskins++;
 409                 }
 410                 else
 411                         break;
 412         }
 413
 414         loadmodel->alias.aliasdata_meshes->num_skins = 0;
 415         for (i = 0;i < loadmodel->numskins;i++)
 416                 loadmodel->alias.aliasdata_meshes->num_skins += loadmodel->skinscenes[i].framecount;
 417         loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 418
 419         // store texture coordinates into temporary array, they will be stored
 420         // after usage is determined (triangle data)
 421         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 422         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 423         vertonseam = vertremap + numverts * 2;
 424
 425         scales = 1.0 / skinwidth;
 426         scalet = 1.0 / skinheight;
 427         for (i = 0;i < numverts;i++)
 428         {
 429                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 430                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 431                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 432                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 433                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 434         }
 435
 436 // load triangle data
 437         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->alias.aliasdata_meshes->num_triangles);
 438
 439         // read the triangle elements
 440         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 441                 for (j = 0;j < 3;j++)
 442                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 443         // validate (note numverts is used because this is the original data)
 444         Mod_ValidateElements(loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles, numverts, __FILE__, __LINE__);
 445         // now butcher the elements according to vertonseam and tri->facesfront
 446         // and then compact the vertex set to remove duplicates
 447         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 448                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 449                         for (j = 0;j < 3;j++)
 450                                 if (vertonseam[loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j]])
 451                                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] += numverts;
 452         // count the usage
 453         // (this uses vertremap to count usage to save some memory)
 454         for (i = 0;i < numverts*2;i++)
 455                 vertremap[i] = 0;
 456         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles*3;i++)
 457                 vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]]++;
 458         // build remapping table and compact array
 459         loadmodel->alias.aliasdata_meshes->num_vertices = 0;
 460         for (i = 0;i < numverts*2;i++)
 461         {
 462                 if (vertremap[i])
 463                 {
 464                         vertremap[i] = loadmodel->alias.aliasdata_meshes->num_vertices;
 465                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+0] = vertst[i*2+0];
 466                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+1] = vertst[i*2+1];
 467                         loadmodel->alias.aliasdata_meshes->num_vertices++;
 468                 }
 469                 else
 470                         vertremap[i] = -1; // not used at all
 471         }
 472         // remap the elements to the new vertex set
 473         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles * 3;i++)
 474                 loadmodel->alias.aliasdata_meshes->data_element3i[i] = vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]];
 475         // store the texture coordinates
 476         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->alias.aliasdata_meshes->num_vertices);
 477         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_vertices;i++)
 478         {
 479                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = vertst[i*2+0];
 480                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = vertst[i*2+1];
 481         }
 482
 483 // load the frames
 484         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 485         loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[4][3]) * loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices);
 486         loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 1;
 487         loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 2;
 488         loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 3;
 489         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 490         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 491         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 492         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_skins;i++)
 493                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, loadmodel->skinframes + i);
 494         Mod_CalcAliasModelBBoxes();
 495
 496         Mem_Free(vertst);
 497         Mem_Free(vertremap);
 498 }
 499
 500 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 501 {
 502         int i;
 503         trivertx_t *in;
 504         for (i = 0;i < numverts;i++, out3f += 3)
 505         {
 506                 in = v + vertremap[i];
 507                 out3f[0] = in->v[0] * scale[0] + translate[0];
 508                 out3f[1] = in->v[1] * scale[1] + translate[1];
 509                 out3f[2] = in->v[2] * scale[2] + translate[2];
 510         }
 511 }
 512
 513 void Mod_IDP2_Load(model_t *mod, void *buffer)
 514 {
 515         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 516         float *stverts, s, t, scale[3], translate[3];
 517         md2_t *pinmodel;
 518         qbyte *base, *datapointer;
 519         md2frame_t *pinframe;
 520         char *inskin;
 521         md2triangle_t *intri;
 522         unsigned short *inst;
 523         struct md2verthash_s
 524         {
 525                 struct md2verthash_s *next;
 526                 int xyz;
 527                 float st[2];
 528         }
 529         *hash, **md2verthash, *md2verthashdata;
 530
 531         pinmodel = buffer;
 532         base = buffer;
 533
 534         version = LittleLong (pinmodel->version);
 535         if (version != MD2ALIAS_VERSION)
 536                 Host_Error ("%s has wrong version number (%i should be %i)",
 537                         loadmodel->name, version, MD2ALIAS_VERSION);
 538
 539         loadmodel->type = mod_alias;
 540         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 541         loadmodel->DrawSky = NULL;
 542         loadmodel->Draw = R_Model_Alias_Draw;
 543         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 544         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 545         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 546
 547         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > (65536 / 3))
 548                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 549         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > 65536)
 550                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 551         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > 65536)
 552                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 553         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > 256)
 554                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 555
 556         end = LittleLong(pinmodel->ofs_end);
 557         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 558                 Host_Error ("%s is not a valid model", loadmodel->name);
 559         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 560                 Host_Error ("%s is not a valid model", loadmodel->name);
 561         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 562                 Host_Error ("%s is not a valid model", loadmodel->name);
 563         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 564                 Host_Error ("%s is not a valid model", loadmodel->name);
 565         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 566                 Host_Error ("%s is not a valid model", loadmodel->name);
 567
 568         loadmodel->alias.aliasnum_meshes = 1;
 569         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 570
 571         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 572         numxyz = LittleLong(pinmodel->num_xyz);
 573         numst = LittleLong(pinmodel->num_st);
 574         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->num_tris);
 575         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 576         loadmodel->alias.aliasdata_meshes->num_frames = loadmodel->numframes;
 577         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 578
 579         loadmodel->flags = 0; // there are no MD2 flags
 580         loadmodel->synctype = ST_RAND;
 581
 582         // load the skins
 583         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 584         if (loadmodel->numskins)
 585         {
 586                 // skins found (most likely not a player model)
 587                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 588                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 589                         Mod_LoadSkinFrame(loadmodel->skinframes + i, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 590         }
 591         else
 592         {
 593                 // no skins (most likely a player model)
 594                 loadmodel->numskins = 1;
 595                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 596         }
 597         loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 598         loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 599
 600         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 601         for (i = 0;i < loadmodel->numskins;i++)
 602         {
 603                 loadmodel->skinscenes[i].firstframe = i;
 604                 loadmodel->skinscenes[i].framecount = 1;
 605                 loadmodel->skinscenes[i].loop = true;
 606                 loadmodel->skinscenes[i].framerate = 10;
 607         }
 608
 609
 610         // load the triangles and stvert data
 611         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 612         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 613         skinwidth = LittleLong(pinmodel->skinwidth);
 614         skinheight = LittleLong(pinmodel->skinheight);
 615
 616         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 617         s = 1.0f / skinwidth;
 618         t = 1.0f / skinheight;
 619         for (i = 0;i < numst;i++)
 620         {
 621                 j = (unsigned short) LittleShort(inst[i*2+0]);
 622                 k = (unsigned short) LittleShort(inst[i*2+1]);
 623                 if (j >= skinwidth || k >= skinheight)
 624                 {
 625                         Mem_Free(stverts);
 626                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 627                 }
 628                 stverts[i*2+0] = j * s;
 629                 stverts[i*2+1] = k * t;
 630         }
 631
 632         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 633         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->alias.aliasdata_meshes->num_triangles * 3 * sizeof(*hash));
 634         // swap the triangle list
 635         num = 0;
 636         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 637         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 638         {
 639                 for (j = 0;j < 3;j++)
 640                 {
 641                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 642                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 643                         if (xyz >= numxyz || st >= numst)
 644                         {
 645                                 Mem_Free(md2verthash);
 646                                 Mem_Free(md2verthashdata);
 647                                 Mem_Free(stverts);
 648                                 if (xyz >= numxyz)
 649                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 650                                 if (st >= numst)
 651                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 652                         }
 653                         s = stverts[st*2+0];
 654                         t = stverts[st*2+1];
 655                         hashindex = (xyz * 17 + st) & 255;
 656                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 657                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 658                                         break;
 659                         if (hash == NULL)
 660                         {
 661                                 hash = md2verthashdata + num++;
 662                                 hash->xyz = xyz;
 663                                 hash->st[0] = s;
 664                                 hash->st[1] = t;
 665                                 hash->next = md2verthash[hashindex];
 666                                 md2verthash[hashindex] = hash;
 667                         }
 668                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = (hash - md2verthashdata);
 669                 }
 670         }
 671
 672         Mem_Free(stverts);
 673
 674         numverts = num;
 675         loadmodel->alias.aliasdata_meshes->num_vertices = numverts;
 676         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 677         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 678         for (i = 0;i < num;i++)
 679         {
 680                 hash = md2verthashdata + i;
 681                 vertremap[i] = hash->xyz;
 682                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = hash->st[0];
 683                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = hash->st[1];
 684         }
 685
 686         Mem_Free(md2verthash);
 687         Mem_Free(md2verthashdata);
 688
 689         // load the frames
 690         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 691         loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->alias.aliasdata_meshes->num_frames * sizeof(float[4][3]));
 692         loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 1;
 693         loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 2;
 694         loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 3;
 695         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_frames;i++)
 696         {
 697                 pinframe = (md2frame_t *)datapointer;
 698                 datapointer += sizeof(md2frame_t);
 699                 for (j = 0;j < 3;j++)
 700                 {
 701                         scale[j] = LittleFloat(pinframe->scale[j]);
 702                         translate[j] = LittleFloat(pinframe->translate[j]);
 703                 }
 704                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * numverts * 3, numverts, vertremap);
 705                 Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
 706                 datapointer += numxyz * sizeof(trivertx_t);
 707
 708                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 709                 loadmodel->animscenes[i].firstframe = i;
 710                 loadmodel->animscenes[i].framecount = 1;
 711                 loadmodel->animscenes[i].framerate = 10;
 712                 loadmodel->animscenes[i].loop = true;
 713         }
 714
 715         Mem_Free(vertremap);
 716
 717         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 718         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 719         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_skins;i++)
 720                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, loadmodel->skinframes + i);
 721         Mod_CalcAliasModelBBoxes();
 722 }
 723
 724 void Mod_IDP3_Load(model_t *mod, void *buffer)
 725 {
 726         int i, j, k, version;
 727         md3modelheader_t *pinmodel;
 728         md3frameinfo_t *pinframe;
 729         md3mesh_t *pinmesh;
 730         md3tag_t *pintag;
 731         aliasmesh_t *mesh;
 732         skinframe_t tempskinframe;
 733
 734         pinmodel = buffer;
 735
 736         if (memcmp(pinmodel->identifier, "IDP3", 4))
 737                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
 738         version = LittleLong (pinmodel->version);
 739         if (version != MD3VERSION)
 740                 Host_Error ("%s has wrong version number (%i should be %i)",
 741                         loadmodel->name, version, MD3VERSION);
 742
 743         loadmodel->type = mod_alias;
 744         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 745         loadmodel->DrawSky = NULL;
 746         loadmodel->Draw = R_Model_Alias_Draw;
 747         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 748         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 749         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 750         loadmodel->flags = 0;
 751         loadmodel->synctype = ST_RAND;
 752
 753         // set up some global info about the model
 754         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 755         loadmodel->numskins = 1;
 756         loadmodel->alias.aliasnum_meshes = LittleLong(pinmodel->num_meshes);
 757         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 758         loadmodel->skinscenes[0].firstframe = 0;
 759         loadmodel->skinscenes[0].framecount = 1;
 760         loadmodel->skinscenes[0].loop = true;
 761         loadmodel->skinscenes[0].framerate = 10;
 762
 763         // load frameinfo
 764         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 765         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
 766         {
 767                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 768                 loadmodel->animscenes[i].firstframe = i;
 769                 loadmodel->animscenes[i].framecount = 1;
 770                 loadmodel->animscenes[i].framerate = 10;
 771                 loadmodel->animscenes[i].loop = true;
 772         }
 773
 774         // load tags
 775         loadmodel->alias.aliasnum_tagframes = loadmodel->numframes;
 776         loadmodel->alias.aliasnum_tags = LittleLong(pinmodel->num_tags);
 777         loadmodel->alias.aliasdata_tags = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags * sizeof(aliastag_t));
 778         for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags;i++, pinframe++)
 779         {
 780                 strcpy(loadmodel->alias.aliasdata_tags[i].name, pintag->name);
 781                 Matrix4x4_CreateIdentity(&loadmodel->alias.aliasdata_tags[i].matrix);
 782                 for (j = 0;j < 3;j++)
 783                 {
 784                         for (k = 0;k < 3;k++)
 785                                 loadmodel->alias.aliasdata_tags[i].matrix.m[k][j] = LittleLong(pintag->rotationmatrix[j * 3 + k]);
 786                         loadmodel->alias.aliasdata_tags[i].matrix.m[j][3] = LittleLong(pintag->origin[j]);
 787                 }
 788         }
 789
 790         // load meshes
 791         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_meshes * sizeof(aliasmesh_t));
 792         for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->alias.aliasnum_meshes;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
 793         {
 794                 if (memcmp(pinmesh->identifier, "IDP3", 4))
 795                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
 796                 mesh = loadmodel->alias.aliasdata_meshes + i;
 797                 mesh->num_skins = loadmodel->numskins;
 798                 mesh->num_frames = LittleLong(pinmesh->num_frames);
 799                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
 800                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
 801                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
 802                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 803                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 804                 mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
 805                 mesh->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_frames * sizeof(float[4][3]));
 806                 mesh->data_aliassvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 1;
 807                 mesh->data_aliastvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 2;
 808                 mesh->data_aliasnormal3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 3;
 809                 for (j = 0;j < mesh->num_triangles * 3;j++)
 810                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + pinmesh->lump_elements))[j]);
 811                 for (j = 0;j < mesh->num_vertices;j++)
 812                 {
 813                         mesh->data_texcoord2f[j * 2 + 0] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 0]);
 814                         mesh->data_texcoord2f[j * 2 + 1] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 1]);
 815                 }
 816                 for (j = 0;j < mesh->num_vertices * mesh->num_frames;j++)
 817                 {
 818                         mesh->data_aliasvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 0]) * (1.0f / 64.0f);
 819                         mesh->data_aliasvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 1]) * (1.0f / 64.0f);
 820                         mesh->data_aliasvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 2]) * (1.0f / 64.0f);
 821                 }
 822                 for (j = 0;j < mesh->num_frames;j++)
 823                         Mod_BuildTextureVectorsAndNormals(mesh->num_vertices, mesh->num_triangles, mesh->data_aliasvertex3f + j * mesh->num_vertices * 3, mesh->data_texcoord2f, mesh->data_element3i, mesh->data_aliassvector3f + j * mesh->num_vertices * 3, mesh->data_aliastvector3f + j * mesh->num_vertices * 3, mesh->data_aliasnormal3f + j * mesh->num_vertices * 3);
 824
 825                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 826                 if (LittleLong(pinmesh->num_shaders) >= 1 && ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name[0])
 827                         Mod_LoadSkinFrame(&tempskinframe, ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 828                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
 829                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 830                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins, &tempskinframe);
 831         }
 832         Mod_CalcAliasModelBBoxes();
 833 }
 834
 835 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 836 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 837 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 838 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 839 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
 840 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
 841 {
 842         zymtype1header_t *pinmodel, *pheader;
 843         qbyte *pbase;
 844
 845         pinmodel = (void *)buffer;
 846         pbase = buffer;
 847         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 848                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
 849         if (BigLong(pinmodel->type) != 1)
 850                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 851
 852         loadmodel->type = mod_alias;
 853         loadmodel->alias.aliastype = ALIASTYPE_ZYM;
 854         loadmodel->DrawSky = NULL;
 855         loadmodel->Draw = R_Model_Zymotic_Draw;
 856         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 857         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 858         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 859
 860         // byteswap header
 861         pheader = pinmodel;
 862         pheader->type = BigLong(pinmodel->type);
 863         pheader->filesize = BigLong(pinmodel->filesize);
 864         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 865         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 866         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 867         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 868         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 869         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 870         pheader->radius = BigFloat(pinmodel->radius);
 871         pheader->numverts = loadmodel->alias.zymnum_verts = BigLong(pinmodel->numverts);
 872         pheader->numtris = loadmodel->alias.zymnum_tris = BigLong(pinmodel->numtris);
 873         pheader->numshaders = loadmodel->alias.zymnum_shaders = BigLong(pinmodel->numshaders);
 874         pheader->numbones = loadmodel->alias.zymnum_bones = BigLong(pinmodel->numbones);
 875         pheader->numscenes = loadmodel->alias.zymnum_scenes = BigLong(pinmodel->numscenes);
 876         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 877         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 878         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 879         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 880         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 881         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 882         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 883         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 884         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 885         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 886         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 887         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 888         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 889         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 890         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 891         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 892         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 893         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 894
 895         loadmodel->flags = 0; // there are no flags
 896         loadmodel->numframes = pheader->numscenes;
 897         loadmodel->synctype = ST_SYNC;
 898         //loadmodel->numtris = pheader->numtris;
 899         //loadmodel->numverts = 0;
 900
 901         {
 902                 unsigned int i;
 903                 float modelradius, corner[2];
 904                 // model bbox
 905                 modelradius = pheader->radius;
 906                 for (i = 0;i < 3;i++)
 907                 {
 908                         loadmodel->normalmins[i] = pheader->mins[i];
 909                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 910                         loadmodel->rotatedmins[i] = -modelradius;
 911                         loadmodel->rotatedmaxs[i] = modelradius;
 912                 }
 913                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 914                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 915                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 916                 if (loadmodel->yawmaxs[0] > modelradius)
 917                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 918                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 919                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 920                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 921                 loadmodel->radius = modelradius;
 922                 loadmodel->radius2 = modelradius * modelradius;
 923         }
 924
 925         {
 926                 // FIXME: add shaders, and make them switchable shader sets and...
 927                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 928                 loadmodel->skinscenes[0].firstframe = 0;
 929                 loadmodel->skinscenes[0].framecount = 1;
 930                 loadmodel->skinscenes[0].loop = true;
 931                 loadmodel->skinscenes[0].framerate = 10;
 932                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 933                 loadmodel->numskins = 1;
 934         }
 935
 936         // go through the lumps, swapping things
 937
 938         {
 939                 int i, numposes;
 940                 zymscene_t *scene;
 941         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 942                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 943                 scene = (void *) (pheader->lump_scenes.start + pbase);
 944                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 945                 for (i = 0;i < pheader->numscenes;i++)
 946                 {
 947                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 948                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 949                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 950                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 951                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 952                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
 953                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 954                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
 955                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 956                         if (loadmodel->animscenes[i].framerate < 0)
 957                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 958                         scene++;
 959                 }
 960         }
 961
 962         {
 963                 int i;
 964                 float *poses;
 965         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 966                 loadmodel->alias.zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 967                 poses = (void *) (pheader->lump_poses.start + pbase);
 968                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 969                         loadmodel->alias.zymdata_poses[i] = BigFloat(poses[i]);
 970         }
 971
 972         {
 973                 int i;
 974                 zymbone_t *bone;
 975         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 976                 loadmodel->alias.zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
 977                 bone = (void *) (pheader->lump_bones.start + pbase);
 978                 for (i = 0;i < pheader->numbones;i++)
 979                 {
 980                         memcpy(loadmodel->alias.zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
 981                         loadmodel->alias.zymdata_bones[i].flags = BigLong(bone[i].flags);
 982                         loadmodel->alias.zymdata_bones[i].parent = BigLong(bone[i].parent);
 983                         if (loadmodel->alias.zymdata_bones[i].parent >= i)
 984                                 Host_Error("Mod_ZYMOTICMODEL_Load: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
 985                 }
 986         }
 987
 988         {
 989                 int i, *bonecount;
 990         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 991                 loadmodel->alias.zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
 992                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 993                 for (i = 0;i < pheader->numverts;i++)
 994                 {
 995                         loadmodel->alias.zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
 996                         if (loadmodel->alias.zymdata_vertbonecounts[i] < 1)
 997                                 Host_Error("Mod_ZYMOTICMODEL_Load: bone vertex count < 1 in %s\n", loadmodel->name);
 998                 }
 999         }
1000
1001         {
1002                 int i;
1003                 zymvertex_t *vertdata;
1004         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1005                 loadmodel->alias.zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1006                 vertdata = (void *) (pheader->lump_verts.start + pbase);
1007                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1008                 {
1009                         loadmodel->alias.zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
1010                         loadmodel->alias.zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1011                         loadmodel->alias.zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1012                         loadmodel->alias.zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1013                 }
1014         }
1015
1016         {
1017                 int i;
1018                 float *intexcoord2f, *outtexcoord2f;
1019         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1020                 loadmodel->alias.zymdata_texcoords = outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1021                 intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1022                 for (i = 0;i < pheader->numverts;i++)
1023                 {
1024                         outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1025                         // flip T coordinate for OpenGL
1026                         outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1027                 }
1028         }
1029
1030         {
1031                 int i, count, *renderlist, *renderlistend, *outrenderlist;
1032         //      zymlump_t lump_render; // int renderlist[rendersize]; // sorted by shader with run lengths (int count), shaders are sequentially used, each run can be used with glDrawElements (each triangle is 3 int indices)
1033                 loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1034                 // byteswap, validate, and swap winding order of tris
1035                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1036                 if (pheader->lump_render.length != count)
1037                         Host_Error("Mod_ZYMOTICMODEL_Load: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1038                 outrenderlist = loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1039                 renderlist = (void *) (pheader->lump_render.start + pbase);
1040                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1041                 for (i = 0;i < pheader->numshaders;i++)
1042                 {
1043                         if (renderlist >= renderlistend)
1044                                 Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1045                         count = BigLong(*renderlist);renderlist++;
1046                         if (renderlist + count * 3 > renderlistend)
1047                                 Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1048                         *outrenderlist++ = count;
1049                         while (count--)
1050                         {
1051                                 outrenderlist[2] = BigLong(renderlist[0]);
1052                                 outrenderlist[1] = BigLong(renderlist[1]);
1053                                 outrenderlist[0] = BigLong(renderlist[2]);
1054                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1055                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1056                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1057                                         Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1058                                 renderlist += 3;
1059                                 outrenderlist += 3;
1060                         }
1061                 }
1062         }
1063
1064         {
1065                 int i;
1066                 char *shadername;
1067         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1068                 loadmodel->alias.zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1069                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1070                 for (i = 0;i < pheader->numshaders;i++)
1071                         loadmodel->alias.zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1072         }
1073
1074         {
1075         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1076                 loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1077                 memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1078         }
1079 }