corrected comment again, indicating that the offset for polygon 3 is in the bottom...
[divverent/darkplaces.git] / 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 float vertst[MAXALIASVERTS][2];
33 static int vertusage[MAXALIASVERTS];
34 static int vertonseam[MAXALIASVERTS];
35 static int vertremap[MAXALIASVERTS];
36 static int temptris[MAXALIASTRIS][3];
37
38 static void Mod_CalcAliasModelBBoxes (void)
39 {
40         int vnum, meshnum;
41         float dist, yawradius, radius;
42         aliasmesh_t *mesh;
43         aliasvertex_t *v;
44         VectorClear(loadmodel->normalmins);
45         VectorClear(loadmodel->normalmaxs);
46         yawradius = 0;
47         radius = 0;
48         for (meshnum = 0, mesh = loadmodel->aliasdata_meshes;meshnum < loadmodel->aliasnum_meshes;meshnum++, mesh++)
49         {
50                 for (vnum = 0, v = mesh->data_vertices;vnum < mesh->num_vertices * mesh->num_frames;vnum++, v++)
51                 {
52                         if (loadmodel->normalmins[0] > v->origin[0]) loadmodel->normalmins[0] = v->origin[0];
53                         if (loadmodel->normalmins[1] > v->origin[1]) loadmodel->normalmins[1] = v->origin[1];
54                         if (loadmodel->normalmins[2] > v->origin[2]) loadmodel->normalmins[2] = v->origin[2];
55                         if (loadmodel->normalmaxs[0] < v->origin[0]) loadmodel->normalmaxs[0] = v->origin[0];
56                         if (loadmodel->normalmaxs[1] < v->origin[1]) loadmodel->normalmaxs[1] = v->origin[1];
57                         if (loadmodel->normalmaxs[2] < v->origin[2]) loadmodel->normalmaxs[2] = v->origin[2];
58                         dist = v->origin[0] * v->origin[0] + v->origin[1] * v->origin[1];
59                         if (yawradius < dist)
60                                 yawradius = dist;
61                         dist += v->origin[2] * v->origin[2];
62                         if (radius < dist)
63                                 radius = dist;
64                 }
65         }
66         radius = sqrt(radius);
67         yawradius = sqrt(yawradius);
68         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
69         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
70         loadmodel->yawmins[2] = loadmodel->normalmins[2];
71         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
72         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
73         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
74         loadmodel->radius = radius;
75         loadmodel->radius2 = radius * radius;
76 }
77
78 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, aliasvertex_t *out)
79 {
80         int i, j;
81         vec3_t temp;
82         for (i = 0;i < inverts;i++)
83         {
84                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
85                         continue;
86                 temp[0] = v[i].v[0] * scale[0] + translate[0];
87                 temp[1] = v[i].v[1] * scale[1] + translate[1];
88                 temp[2] = v[i].v[2] * scale[2] + translate[2];
89                 j = vertremap[i]; // not onseam
90                 if (j >= 0)
91                         VectorCopy(temp, out[j].origin);
92                 j = vertremap[i+inverts]; // onseam
93                 if (j >= 0)
94                         VectorCopy(temp, out[j].origin);
95         }
96 }
97
98 static void Mod_BuildAliasVertexTextureVectors(int numverts, aliasvertex_t *vertices, const float *texcoords, float *vertexbuffer, float *svectorsbuffer, float *tvectorsbuffer, float *normalsbuffer, int numtriangles, const int *elements)
99 {
100         int i;
101         for (i = 0;i < numverts;i++)
102                 VectorCopy(vertices[i].origin, &vertexbuffer[i * 4]);
103         Mod_BuildTextureVectorsAndNormals(numverts, numtriangles, vertexbuffer, texcoords, elements, svectorsbuffer, tvectorsbuffer, normalsbuffer);
104         for (i = 0;i < numverts;i++)
105         {
106                 // LordHavoc: alias models are backwards, apparently
107                 vertices[i].normal[0] = normalsbuffer[i * 4 + 0];
108                 vertices[i].normal[1] = normalsbuffer[i * 4 + 1];
109                 vertices[i].normal[2] = normalsbuffer[i * 4 + 2];
110                 vertices[i].svector[0] = svectorsbuffer[i * 4 + 0];
111                 vertices[i].svector[1] = svectorsbuffer[i * 4 + 1];
112                 vertices[i].svector[2] = svectorsbuffer[i * 4 + 2];
113         }
114 }
115
116 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, int outverts, vec3_t scale, vec3_t translate, float *texcoords, aliasvertex_t *posedata, int numtris, int *elements)
117 {
118         int i, f, pose, groupframes;
119         float interval, *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
120         daliasframetype_t *pframetype;
121         daliasframe_t *pinframe;
122         daliasgroup_t *group;
123         daliasinterval_t *intervals;
124         animscene_t *scene;
125         pose = 0;
126         scene = loadmodel->animscenes;
127         vertexbuffer = Mem_Alloc(tempmempool, outverts * sizeof(float[4]) * 4);
128         svectorsbuffer = vertexbuffer + outverts * 4;
129         tvectorsbuffer = svectorsbuffer + outverts * 4;
130         normalsbuffer = tvectorsbuffer + outverts * 4;
131         for (f = 0;f < loadmodel->numframes;f++)
132         {
133                 pframetype = (daliasframetype_t *)datapointer;
134                 datapointer += sizeof(daliasframetype_t);
135                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
136                 {
137                         // a single frame is still treated as a group
138                         interval = 0.1f;
139                         groupframes = 1;
140                 }
141                 else
142                 {
143                         // read group header
144                         group = (daliasgroup_t *)datapointer;
145                         datapointer += sizeof(daliasgroup_t);
146                         groupframes = LittleLong (group->numframes);
147
148                         // intervals (time per frame)
149                         intervals = (daliasinterval_t *)datapointer;
150                         datapointer += sizeof(daliasinterval_t) * groupframes;
151
152                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
153                         if (interval < 0.01f)
154                                 Host_Error("Mod_MDL_LoadFrames: invalid interval");
155                 }
156
157                 // get scene name from first frame
158                 pinframe = (daliasframe_t *)datapointer;
159
160                 strcpy(scene->name, pinframe->name);
161                 scene->firstframe = pose;
162                 scene->framecount = groupframes;
163                 scene->framerate = 1.0f / interval;
164                 scene->loop = true;
165                 scene++;
166
167                 // read frames
168                 for (i = 0;i < groupframes;i++)
169                 {
170                         pinframe = (daliasframe_t *)datapointer;
171                         datapointer += sizeof(daliasframe_t);
172                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, posedata + pose * outverts);
173                         Mod_BuildAliasVertexTextureVectors(outverts, posedata + pose * outverts, texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer, numtris, elements);
174                         datapointer += sizeof(trivertx_t) * inverts;
175                         pose++;
176                 }
177         }
178         Mem_Free(vertexbuffer);
179 }
180
181 void Mod_BuildAliasSkinFromSkinFrame(aliasskin_t *skin, skinframe_t *skinframe)
182 {
183         aliaslayer_t *layer;
184         skin->flags = 0;
185         // fog texture only exists if some pixels are transparent...
186         if (skinframe->fog != NULL)
187                 skin->flags |= ALIASSKIN_TRANSPARENT;
188         // fog and gloss layers always exist
189         skin->num_layers = 2;
190         if (skinframe->glow != NULL)
191                 skin->num_layers++;
192         if (skinframe->merged != NULL)
193                 skin->num_layers += 2;
194         if (skinframe->base != NULL)
195                 skin->num_layers += 2;
196         if (skinframe->pants != NULL)
197                 skin->num_layers += 2;
198         if (skinframe->shirt != NULL)
199                 skin->num_layers += 2;
200         layer = skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
201         if (skinframe->glow != NULL)
202         {
203                 layer->flags = 0;
204                 layer->texture = skinframe->glow;
205                 layer++;
206         }
207         if (skinframe->merged != NULL)
208         {
209                 layer->flags = ALIASLAYER_NODRAW_IF_COLORMAPPED | ALIASLAYER_DIFFUSE;
210                 if (skinframe->glow != NULL)
211                         layer->flags |= ALIASLAYER_ADD;
212                 layer->texture = skinframe->merged;
213                 layer->nmap = skinframe->nmap;
214                 layer++;
215         }
216         if (skinframe->base != NULL)
217         {
218                 layer->flags = ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_DIFFUSE;
219                 if (skinframe->glow != NULL)
220                         layer->flags |= ALIASLAYER_ADD;
221                 layer->texture = skinframe->base;
222                 layer->nmap = skinframe->nmap;
223                 layer++;
224         }
225         if (skinframe->pants != NULL)
226         {
227                 layer->flags = ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_DIFFUSE | ALIASLAYER_COLORMAP_SHIRT;
228                 if (skinframe->glow != NULL || skinframe->base != NULL)
229                         layer->flags |= ALIASLAYER_ADD;
230                 layer->texture = skinframe->pants;
231                 layer->nmap = skinframe->nmap;
232                 layer++;
233         }
234         if (skinframe->shirt != NULL)
235         {
236                 layer->flags = ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_DIFFUSE | ALIASLAYER_COLORMAP_SHIRT;
237                 if (skinframe->glow != NULL || skinframe->base != NULL || skinframe->pants != NULL)
238                         layer->flags |= ALIASLAYER_ADD;
239                 layer->texture = skinframe->shirt;
240                 layer->nmap = skinframe->nmap;
241                 layer++;
242         }
243         layer->flags = ALIASLAYER_FOG;
244         layer->texture = skinframe->fog;
245         layer++;
246         layer->flags = ALIASLAYER_DRAW_PER_LIGHT | ALIASLAYER_SPECULAR;
247         layer->texture = skinframe->gloss;
248         layer->nmap = skinframe->nmap;
249         layer++;
250         if (skinframe->merged != NULL)
251         {
252                 layer->flags = ALIASLAYER_DRAW_PER_LIGHT | ALIASLAYER_NODRAW_IF_COLORMAPPED | ALIASLAYER_DIFFUSE;
253                 layer->texture = skinframe->merged;
254                 layer->nmap = skinframe->nmap;
255                 layer++;
256         }
257         if (skinframe->base != NULL)
258         {
259                 layer->flags = ALIASLAYER_DRAW_PER_LIGHT | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_DIFFUSE;
260                 layer->texture = skinframe->base;
261                 layer->nmap = skinframe->nmap;
262                 layer++;
263         }
264         if (skinframe->pants != NULL)
265         {
266                 layer->flags = ALIASLAYER_DRAW_PER_LIGHT | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_DIFFUSE | ALIASLAYER_COLORMAP_PANTS;
267                 layer->texture = skinframe->pants;
268                 layer->nmap = skinframe->nmap;
269                 layer++;
270         }
271         if (skinframe->shirt != NULL)
272         {
273                 layer->flags = ALIASLAYER_DRAW_PER_LIGHT | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_DIFFUSE | ALIASLAYER_COLORMAP_SHIRT;
274                 layer->texture = skinframe->shirt;
275                 layer->nmap = skinframe->nmap;
276                 layer++;
277         }
278 }
279
280 void Mod_BuildMDLMD2MeshInfo(int numverts, int numtris, int *elements, float *texcoords, aliasvertex_t *posedata)
281 {
282         int i;
283         aliasmesh_t *mesh;
284
285         loadmodel->aliasnum_meshes = 1;
286         mesh = loadmodel->aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->aliasnum_meshes * sizeof(aliasmesh_t));
287         mesh->num_skins = 0;
288         mesh->num_frames = 0;
289         for (i = 0;i < loadmodel->numframes;i++)
290                 mesh->num_frames += loadmodel->animscenes[i].framecount;
291         for (i = 0;i < loadmodel->numskins;i++)
292                 mesh->num_skins += loadmodel->skinscenes[i].framecount;
293         mesh->num_triangles = numtris;
294         mesh->num_vertices = numverts;
295         mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
296         mesh->data_elements = elements;
297         mesh->data_neighbors = Mem_Alloc(loadmodel->mempool, numtris * sizeof(int[3]));
298         Mod_ValidateElements(mesh->data_elements, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
299         Mod_BuildTriangleNeighbors(mesh->data_neighbors, mesh->data_elements, mesh->num_triangles);
300         mesh->data_texcoords = texcoords;
301         mesh->data_vertices = posedata;
302         for (i = 0;i < mesh->num_skins;i++)
303                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins + i, loadmodel->skinframes + i);
304         Mod_CalcAliasModelBBoxes();
305 }
306
307 #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);
308 #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);
309 extern void R_Model_Alias_Draw(entity_render_t *ent);
310 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
311 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
312 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
313 void Mod_LoadQ1AliasModel (model_t *mod, void *buffer)
314 {
315         int i, j, version, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins, *elements, numverts, numtris;
316         float scales, scalet, scale[3], translate[3], interval, *texcoords;
317         mdl_t *pinmodel;
318         stvert_t *pinstverts;
319         dtriangle_t *pintriangles;
320         daliasskintype_t *pinskintype;
321         daliasskingroup_t *pinskingroup;
322         daliasskininterval_t *pinskinintervals;
323         daliasframetype_t *pinframetype;
324         daliasgroup_t *pinframegroup;
325         aliasvertex_t *posedata;
326         qbyte *datapointer, *startframes, *startskins;
327         char name[MAX_QPATH];
328         skinframe_t tempskinframe;
329         animscene_t *tempskinscenes;
330         skinframe_t *tempskinframes;
331
332         datapointer = buffer;
333         pinmodel = (mdl_t *)datapointer;
334         datapointer += sizeof(mdl_t);
335
336         version = LittleLong (pinmodel->version);
337         if (version != ALIAS_VERSION)
338                 Host_Error ("%s has wrong version number (%i should be %i)",
339                                  loadmodel->name, version, ALIAS_VERSION);
340
341         loadmodel->type = mod_alias;
342         loadmodel->aliastype = ALIASTYPE_ALIAS;
343         loadmodel->DrawSky = NULL;
344         loadmodel->Draw = R_Model_Alias_Draw;
345         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
346         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
347         loadmodel->DrawLight = R_Model_Alias_DrawLight;
348
349         loadmodel->numskins = LittleLong(pinmodel->numskins);
350         BOUNDI(loadmodel->numskins,0,256);
351         skinwidth = LittleLong (pinmodel->skinwidth);
352         BOUNDI(skinwidth,0,4096);
353         skinheight = LittleLong (pinmodel->skinheight);
354         BOUNDI(skinheight,0,4096);
355         numverts = LittleLong(pinmodel->numverts);
356         BOUNDI(numverts,0,MAXALIASVERTS);
357         numtris = LittleLong(pinmodel->numtris);
358         BOUNDI(numtris,0,MAXALIASTRIS);
359         loadmodel->numframes = LittleLong(pinmodel->numframes);
360         BOUNDI(loadmodel->numframes,0,65536);
361         loadmodel->synctype = LittleLong (pinmodel->synctype);
362         BOUNDI(loadmodel->synctype,0,2);
363         loadmodel->flags = LittleLong (pinmodel->flags);
364
365         for (i = 0;i < 3;i++)
366         {
367                 scale[i] = LittleFloat (pinmodel->scale[i]);
368                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
369         }
370
371         startskins = datapointer;
372         totalskins = 0;
373         for (i = 0;i < loadmodel->numskins;i++)
374         {
375                 pinskintype = (daliasskintype_t *)datapointer;
376                 datapointer += sizeof(daliasskintype_t);
377                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
378                         groupskins = 1;
379                 else
380                 {
381                         pinskingroup = (daliasskingroup_t *)datapointer;
382                         datapointer += sizeof(daliasskingroup_t);
383                         groupskins = LittleLong(pinskingroup->numskins);
384                         datapointer += sizeof(daliasskininterval_t) * groupskins;
385                 }
386
387                 for (j = 0;j < groupskins;j++)
388                 {
389                         datapointer += skinwidth * skinheight;
390                         totalskins++;
391                 }
392         }
393
394         pinstverts = (stvert_t *)datapointer;
395         datapointer += sizeof(stvert_t) * numverts;
396
397         pintriangles = (dtriangle_t *)datapointer;
398         datapointer += sizeof(dtriangle_t) * numtris;
399
400         startframes = datapointer;
401         totalposes = 0;
402         for (i = 0;i < loadmodel->numframes;i++)
403         {
404                 pinframetype = (daliasframetype_t *)datapointer;
405                 datapointer += sizeof(daliasframetype_t);
406                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
407                         groupframes = 1;
408                 else
409                 {
410                         pinframegroup = (daliasgroup_t *)datapointer;
411                         datapointer += sizeof(daliasgroup_t);
412                         groupframes = LittleLong(pinframegroup->numframes);
413                         datapointer += sizeof(daliasinterval_t) * groupframes;
414                 }
415
416                 for (j = 0;j < groupframes;j++)
417                 {
418                         datapointer += sizeof(daliasframe_t);
419                         datapointer += sizeof(trivertx_t) * numverts;
420                         totalposes++;
421                 }
422         }
423
424         // load the skins
425         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
426         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
427         totalskins = 0;
428         datapointer = startskins;
429         for (i = 0;i < loadmodel->numskins;i++)
430         {
431                 pinskintype = (daliasskintype_t *)datapointer;
432                 datapointer += sizeof(daliasskintype_t);
433
434                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
435                 {
436                         groupskins = 1;
437                         interval = 0.1f;
438                 }
439                 else
440                 {
441                         pinskingroup = (daliasskingroup_t *)datapointer;
442                         datapointer += sizeof(daliasskingroup_t);
443
444                         groupskins = LittleLong (pinskingroup->numskins);
445
446                         pinskinintervals = (daliasskininterval_t *)datapointer;
447                         datapointer += sizeof(daliasskininterval_t) * groupskins;
448
449                         interval = LittleFloat(pinskinintervals[0].interval);
450                         if (interval < 0.01f)
451                                 Host_Error("Mod_LoadQ1AliasModel: invalid interval\n");
452                 }
453
454                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
455                 loadmodel->skinscenes[i].firstframe = totalskins;
456                 loadmodel->skinscenes[i].framecount = groupskins;
457                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
458                 loadmodel->skinscenes[i].loop = true;
459
460                 for (j = 0;j < groupskins;j++)
461                 {
462                         if (groupskins > 1)
463                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
464                         else
465                                 sprintf (name, "%s_%i", loadmodel->name, i);
466                         if (!Mod_LoadSkinFrame(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA, true, false, true))
467                                 Mod_LoadSkinFrame_Internal(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA, true, false, true, (qbyte *)datapointer, skinwidth, skinheight);
468                         datapointer += skinwidth * skinheight;
469                         totalskins++;
470                 }
471         }
472         // check for skins that don't exist in the model, but do exist as external images
473         // (this was added because yummyluv kept pestering me about support for it)
474         for (;;)
475         {
476                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
477                 if (Mod_LoadSkinFrame (&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA, true, false, true))
478                 {
479                         // expand the arrays to make room
480                         tempskinscenes = loadmodel->skinscenes;
481                         tempskinframes = loadmodel->skinframes;
482                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
483                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
484                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
485                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
486                         Mem_Free(tempskinscenes);
487                         Mem_Free(tempskinframes);
488                         // store the info about the new skin
489                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
490                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
491                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
492                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
493                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
494                         loadmodel->skinframes[totalskins] = tempskinframe;
495                         loadmodel->numskins++;
496                         totalskins++;
497                 }
498                 else
499                         break;
500         }
501
502         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
503         scales = 1.0 / skinwidth;
504         scalet = 1.0 / skinheight;
505         for (i = 0;i < numverts;i++)
506         {
507                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
508                 vertst[i][0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
509                 vertst[i][1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
510                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
511                 vertst[i+numverts][1] = vertst[i][1];
512                 vertusage[i] = 0;
513                 vertusage[i+numverts] = 0;
514         }
515
516 // load triangle data
517         elements = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * numtris);
518
519         // count the vertices used
520         for (i = 0;i < numverts*2;i++)
521                 vertusage[i] = 0;
522         for (i = 0;i < numtris;i++)
523         {
524                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
525                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
526                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
527                 if (!LittleLong(pintriangles[i].facesfront)) // backface
528                 {
529                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
530                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
531                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
532                 }
533                 vertusage[temptris[i][0]]++;
534                 vertusage[temptris[i][1]]++;
535                 vertusage[temptris[i][2]]++;
536         }
537         // build remapping table and compact array
538         totalverts = 0;
539         for (i = 0;i < numverts*2;i++)
540         {
541                 if (vertusage[i])
542                 {
543                         vertremap[i] = totalverts;
544                         vertst[totalverts][0] = vertst[i][0];
545                         vertst[totalverts][1] = vertst[i][1];
546                         totalverts++;
547                 }
548                 else
549                         vertremap[i] = -1; // not used at all
550         }
551         // remap the triangle references
552         for (i = 0;i < numtris;i++)
553         {
554                 elements[i*3+0] = vertremap[temptris[i][0]];
555                 elements[i*3+1] = vertremap[temptris[i][1]];
556                 elements[i*3+2] = vertremap[temptris[i][2]];
557         }
558         // store the texture coordinates
559         texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[4]) * totalverts);
560         for (i = 0;i < totalverts;i++)
561         {
562                 texcoords[i*4+0] = vertst[i][0];
563                 texcoords[i*4+1] = vertst[i][1];
564         }
565
566 // load the frames
567         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
568         posedata = Mem_Alloc(loadmodel->mempool, sizeof(aliasvertex_t) * totalposes * totalverts);
569         Mod_MDL_LoadFrames (startframes, numverts, totalverts, scale, translate, texcoords, posedata, numtris, elements);
570         Mod_BuildMDLMD2MeshInfo(totalverts, numtris, elements, texcoords, posedata);
571 }
572
573 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, aliasvertex_t *out, int numverts, int *vertremap)
574 {
575         int i;
576         trivertx_t *in;
577         for (i = 0;i < numverts;i++)
578         {
579                 in = v + vertremap[i];
580                 out[i].origin[0] = in->v[0] * scale[0] + translate[0];
581                 out[i].origin[1] = in->v[1] * scale[1] + translate[1];
582                 out[i].origin[2] = in->v[2] * scale[2] + translate[2];
583         }
584 }
585
586 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
587 {
588         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, *elements, numverts, numtris;
589         float *stverts, s, t, scale[3], translate[3], *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer, *texcoords;
590         aliasvertex_t *posedata;
591         md2_t *pinmodel;
592         qbyte *base, *datapointer;
593         md2frame_t *pinframe;
594         char *inskin;
595         md2triangle_t *intri;
596         unsigned short *inst;
597         struct md2verthash_s
598         {
599                 struct md2verthash_s *next;
600                 int xyz;
601                 float st[2];
602         }
603         *hash, **md2verthash, *md2verthashdata;
604
605         pinmodel = buffer;
606         base = buffer;
607
608         version = LittleLong (pinmodel->version);
609         if (version != MD2ALIAS_VERSION)
610                 Host_Error ("%s has wrong version number (%i should be %i)",
611                         loadmodel->name, version, MD2ALIAS_VERSION);
612
613         loadmodel->type = mod_alias;
614         loadmodel->aliastype = ALIASTYPE_ALIAS;
615         loadmodel->DrawSky = NULL;
616         loadmodel->Draw = R_Model_Alias_Draw;
617         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
618         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
619         loadmodel->DrawLight = R_Model_Alias_DrawLight;
620
621         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
622                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
623         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
624                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
625         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
626                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
627         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
628                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
629
630         end = LittleLong(pinmodel->ofs_end);
631         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
632                 Host_Error ("%s is not a valid model", loadmodel->name);
633         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
634                 Host_Error ("%s is not a valid model", loadmodel->name);
635         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
636                 Host_Error ("%s is not a valid model", loadmodel->name);
637         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
638                 Host_Error ("%s is not a valid model", loadmodel->name);
639         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
640                 Host_Error ("%s is not a valid model", loadmodel->name);
641
642         loadmodel->numskins = LittleLong(pinmodel->num_skins);
643         numxyz = LittleLong(pinmodel->num_xyz);
644         numst = LittleLong(pinmodel->num_st);
645         numtris = LittleLong(pinmodel->num_tris);
646         loadmodel->numframes = LittleLong(pinmodel->num_frames);
647
648         loadmodel->flags = 0; // there are no MD2 flags
649         loadmodel->synctype = ST_RAND;
650
651         // load the skins
652         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
653         if (loadmodel->numskins)
654         {
655                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins + sizeof(skinframe_t) * loadmodel->numskins);
656                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + loadmodel->numskins);
657                 for (i = 0;i < loadmodel->numskins;i++)
658                 {
659                         loadmodel->skinscenes[i].firstframe = i;
660                         loadmodel->skinscenes[i].framecount = 1;
661                         loadmodel->skinscenes[i].loop = true;
662                         loadmodel->skinscenes[i].framerate = 10;
663                         Mod_LoadSkinFrame (loadmodel->skinframes + i, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE, true, false, true);
664                         inskin += MD2MAX_SKINNAME;
665                 }
666         }
667
668         // load the triangles and stvert data
669         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
670         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
671         skinwidth = LittleLong(pinmodel->skinwidth);
672         skinheight = LittleLong(pinmodel->skinheight);
673
674         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
675         s = 1.0f / skinwidth;
676         t = 1.0f / skinheight;
677         for (i = 0;i < numst;i++)
678         {
679                 j = (unsigned short) LittleShort(inst[i*2+0]);
680                 k = (unsigned short) LittleShort(inst[i*2+1]);
681                 if (j >= skinwidth || k >= skinheight)
682                 {
683                         Mem_Free(stverts);
684                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
685                 }
686                 stverts[i*2+0] = j * s;
687                 stverts[i*2+1] = k * t;
688         }
689
690         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
691         md2verthashdata = Mem_Alloc(tempmempool, numtris * 3 * sizeof(*hash));
692         // swap the triangle list
693         num = 0;
694         elements = Mem_Alloc(loadmodel->mempool, numtris * sizeof(int[3]));
695         for (i = 0;i < numtris;i++)
696         {
697                 for (j = 0;j < 3;j++)
698                 {
699                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
700                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
701                         if (xyz >= numxyz || st >= numst)
702                         {
703                                 Mem_Free(md2verthash);
704                                 Mem_Free(md2verthashdata);
705                                 Mem_Free(stverts);
706                                 if (xyz >= numxyz)
707                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
708                                 if (st >= numst)
709                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
710                         }
711                         s = stverts[st*2+0];
712                         t = stverts[st*2+1];
713                         hashindex = (xyz * 17 + st) & 255;
714                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
715                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
716                                         break;
717                         if (hash == NULL)
718                         {
719                                 hash = md2verthashdata + num++;
720                                 hash->xyz = xyz;
721                                 hash->st[0] = s;
722                                 hash->st[1] = t;
723                                 hash->next = md2verthash[hashindex];
724                                 md2verthash[hashindex] = hash;
725                         }
726                         elements[i*3+j] = (hash - md2verthashdata);
727                 }
728         }
729
730         Mem_Free(stverts);
731
732         numverts = num;
733         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
734         texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[4]));
735         for (i = 0;i < num;i++)
736         {
737                 hash = md2verthashdata + i;
738                 vertremap[i] = hash->xyz;
739                 texcoords[i*4+0] = hash->st[0];
740                 texcoords[i*4+1] = hash->st[1];
741         }
742
743         Mem_Free(md2verthash);
744         Mem_Free(md2verthashdata);
745
746         // load the frames
747         datapointer = (base + LittleLong(pinmodel->ofs_frames));
748         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
749         posedata = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->numframes * sizeof(trivertx_t));
750
751         vertexbuffer = Mem_Alloc(tempmempool, numverts * sizeof(float[4]) * 4);
752         svectorsbuffer = vertexbuffer + numverts * 4;
753         tvectorsbuffer = svectorsbuffer + numverts * 4;
754         normalsbuffer = tvectorsbuffer + numverts * 4;
755         for (i = 0;i < loadmodel->numframes;i++)
756         {
757                 pinframe = (md2frame_t *)datapointer;
758                 datapointer += sizeof(md2frame_t);
759                 for (j = 0;j < 3;j++)
760                 {
761                         scale[j] = LittleFloat(pinframe->scale[j]);
762                         translate[j] = LittleFloat(pinframe->translate[j]);
763                 }
764                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, posedata + i * numverts, numverts, vertremap);
765                 Mod_BuildAliasVertexTextureVectors(numverts, posedata + i * numverts, texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer, numtris, elements);
766                 datapointer += numxyz * sizeof(trivertx_t);
767
768                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
769                 loadmodel->animscenes[i].firstframe = i;
770                 loadmodel->animscenes[i].framecount = 1;
771                 loadmodel->animscenes[i].framerate = 10;
772                 loadmodel->animscenes[i].loop = true;
773         }
774         Mem_Free(vertexbuffer);
775
776         Mem_Free(vertremap);
777
778         Mod_BuildMDLMD2MeshInfo(numverts, numtris, elements, texcoords, posedata);
779 }
780
781 void Mod_LoadQ3AliasModel(model_t *mod, void *buffer)
782 {
783         int i, j, version;
784         float *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
785         md3modelheader_t *pinmodel;
786         md3frameinfo_t *pinframe;
787         md3mesh_t *pinmesh;
788         aliasmesh_t *mesh;
789         skinframe_t tempskinframe;
790
791         pinmodel = buffer;
792
793         if (memcmp(pinmodel->identifier, "IDP3", 4))
794                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
795         version = LittleLong (pinmodel->version);
796         if (version != MD3VERSION)
797                 Host_Error ("%s has wrong version number (%i should be %i)",
798                         loadmodel->name, version, MD3VERSION);
799
800         loadmodel->type = mod_alias;
801         loadmodel->aliastype = ALIASTYPE_ALIAS;
802         loadmodel->DrawSky = NULL;
803         loadmodel->Draw = R_Model_Alias_Draw;
804         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
805         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
806         loadmodel->DrawLight = R_Model_Alias_DrawLight;
807         loadmodel->flags = 0;
808         loadmodel->synctype = ST_RAND;
809
810         // set up some global info about the model
811         loadmodel->numframes = LittleLong(pinmodel->num_frames);
812         loadmodel->numskins = 1;
813         loadmodel->aliasnum_meshes = LittleLong(pinmodel->num_meshes);
814         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
815         loadmodel->skinscenes[0].firstframe = 0;
816         loadmodel->skinscenes[0].framecount = 1;
817         loadmodel->skinscenes[0].loop = true;
818         loadmodel->skinscenes[0].framerate = 10;
819
820         // load frameinfo
821         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
822         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
823         {
824                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
825                 loadmodel->animscenes[i].firstframe = i;
826                 loadmodel->animscenes[i].framecount = 1;
827                 loadmodel->animscenes[i].framerate = 10;
828                 loadmodel->animscenes[i].loop = true;
829         }
830
831         // tags are not loaded yet
832
833         // load meshes
834         loadmodel->aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->aliasnum_meshes * sizeof(aliasmesh_t));
835         for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->aliasnum_meshes;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
836         {
837                 if (memcmp(pinmesh->identifier, "IDP3", 4))
838                         Host_Error("Mod_LoadQ3AliasModel: invalid mesh identifier (not IDP3)\n");
839                 mesh = loadmodel->aliasdata_meshes + i;
840                 mesh->num_skins = loadmodel->numskins;
841                 mesh->num_frames = LittleLong(pinmesh->num_frames);
842                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
843                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
844                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
845                 mesh->data_elements = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
846                 mesh->data_neighbors = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
847                 mesh->data_texcoords = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[4]));
848                 mesh->data_vertices = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_frames * sizeof(aliasvertex_t));
849                 for (j = 0;j < mesh->num_triangles * 3;j++)
850                         mesh->data_elements[j] = LittleLong(((int *)((qbyte *)pinmesh + pinmesh->lump_elements))[j]);
851                 for (j = 0;j < mesh->num_vertices;j++)
852                 {
853                         mesh->data_texcoords[j * 4 + 0] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 0]);
854                         mesh->data_texcoords[j * 4 + 1] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 1]);
855                 }
856                 for (j = 0;j < mesh->num_vertices * mesh->num_frames;j++)
857                 {
858                         mesh->data_vertices[j].origin[0] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 0]) * (1.0f / 64.0f);
859                         mesh->data_vertices[j].origin[1] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 1]) * (1.0f / 64.0f);
860                         mesh->data_vertices[j].origin[2] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 2]) * (1.0f / 64.0f);
861                 }
862                 vertexbuffer = Mem_Alloc(tempmempool, mesh->num_vertices * sizeof(float[4]) * 4);
863                 svectorsbuffer = vertexbuffer + mesh->num_vertices * 4;
864                 tvectorsbuffer = svectorsbuffer + mesh->num_vertices * 4;
865                 normalsbuffer = tvectorsbuffer + mesh->num_vertices * 4;
866                 for (j = 0;j < mesh->num_frames;j++)
867                         Mod_BuildAliasVertexTextureVectors(mesh->num_vertices, mesh->data_vertices + j * mesh->num_vertices, mesh->data_texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer, mesh->num_triangles, mesh->data_elements);
868                 Mem_Free(vertexbuffer);
869
870                 memset(&tempskinframe, 0, sizeof(tempskinframe));
871                 if (LittleLong(pinmesh->num_shaders) >= 1 && ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name[0])
872                         Mod_LoadSkinFrame (&tempskinframe, ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE, true, false, true);
873                 Mod_ValidateElements(mesh->data_elements, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
874                 Mod_BuildTriangleNeighbors(mesh->data_neighbors, mesh->data_elements, mesh->num_triangles);
875                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins, &tempskinframe);
876         }
877         Mod_CalcAliasModelBBoxes();
878 }
879
880 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
881 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
882 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
883 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
884 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
885 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
886 {
887         zymtype1header_t *pinmodel, *pheader;
888         qbyte *pbase;
889
890         pinmodel = (void *)buffer;
891         pbase = buffer;
892         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
893                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
894         if (BigLong(pinmodel->type) != 1)
895                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
896
897         loadmodel->type = mod_alias;
898         loadmodel->aliastype = ALIASTYPE_ZYM;
899         loadmodel->DrawSky = NULL;
900         loadmodel->Draw = R_Model_Zymotic_Draw;
901         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
902         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
903         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
904
905         // byteswap header
906         pheader = pinmodel;
907         pheader->type = BigLong(pinmodel->type);
908         pheader->filesize = BigLong(pinmodel->filesize);
909         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
910         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
911         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
912         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
913         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
914         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
915         pheader->radius = BigFloat(pinmodel->radius);
916         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
917         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
918         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
919         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
920         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
921         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
922         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
923         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
924         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
925         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
926         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
927         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
928         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
929         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
930         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
931         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
932         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
933         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
934         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
935         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
936         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
937         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
938         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
939
940         loadmodel->flags = 0; // there are no flags
941         loadmodel->numframes = pheader->numscenes;
942         loadmodel->synctype = ST_SYNC;
943         //loadmodel->numtris = pheader->numtris;
944         //loadmodel->numverts = 0;
945
946         {
947                 unsigned int i;
948                 float modelradius, corner[2];
949                 // model bbox
950                 modelradius = pheader->radius;
951                 for (i = 0;i < 3;i++)
952                 {
953                         loadmodel->normalmins[i] = pheader->mins[i];
954                         loadmodel->normalmaxs[i] = pheader->maxs[i];
955                         loadmodel->rotatedmins[i] = -modelradius;
956                         loadmodel->rotatedmaxs[i] = modelradius;
957                 }
958                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
959                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
960                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
961                 if (loadmodel->yawmaxs[0] > modelradius)
962                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
963                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
964                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
965                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
966                 loadmodel->radius = modelradius;
967                 loadmodel->radius2 = modelradius * modelradius;
968         }
969
970         {
971                 // FIXME: add shaders, and make them switchable shader sets and...
972                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
973                 loadmodel->skinscenes[0].firstframe = 0;
974                 loadmodel->skinscenes[0].framecount = 1;
975                 loadmodel->skinscenes[0].loop = true;
976                 loadmodel->skinscenes[0].framerate = 10;
977                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
978                 loadmodel->numskins = 1;
979         }
980
981         // go through the lumps, swapping things
982
983         {
984                 int i, numposes;
985                 zymscene_t *scene;
986         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
987                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
988                 scene = (void *) (pheader->lump_scenes.start + pbase);
989                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
990                 for (i = 0;i < pheader->numscenes;i++)
991                 {
992                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
993                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
994                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
995                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
996                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
997                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
998                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
999                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1000                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1001                         if (loadmodel->animscenes[i].framerate < 0)
1002                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
1003                         scene++;
1004                 }
1005         }
1006
1007         {
1008                 int i;
1009                 float *poses;
1010         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1011                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1012                 poses = (void *) (pheader->lump_poses.start + pbase);
1013                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
1014                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
1015         }
1016
1017         {
1018                 int i;
1019                 zymbone_t *bone;
1020         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
1021                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
1022                 bone = (void *) (pheader->lump_bones.start + pbase);
1023                 for (i = 0;i < pheader->numbones;i++)
1024                 {
1025                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
1026                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
1027                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
1028                         if (loadmodel->zymdata_bones[i].parent >= i)
1029                                 Host_Error("Mod_LoadZymoticModel: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
1030                 }
1031         }
1032
1033         {
1034                 int i, *bonecount;
1035         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1036                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1037                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1038                 for (i = 0;i < pheader->numverts;i++)
1039                 {
1040                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
1041                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
1042                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
1043                 }
1044         }
1045
1046         {
1047                 int i;
1048                 zymvertex_t *vertdata;
1049         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1050                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1051                 vertdata = (void *) (pheader->lump_verts.start + pbase);
1052                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1053                 {
1054                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
1055                         loadmodel->zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1056                         loadmodel->zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1057                         loadmodel->zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1058                 }
1059         }
1060
1061         {
1062                 int i;
1063                 float *intexcoord, *outtexcoord;
1064         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1065                 loadmodel->zymdata_texcoords = outtexcoord = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[4]));
1066                 intexcoord = (void *) (pheader->lump_texcoords.start + pbase);
1067                 for (i = 0;i < pheader->numverts;i++)
1068                 {
1069                         outtexcoord[i*4+0] = BigFloat(intexcoord[i*2+0]);
1070                         // flip T coordinate for OpenGL
1071                         outtexcoord[i*4+1] = 1 - BigFloat(intexcoord[i*2+1]);
1072                 }
1073         }
1074
1075         {
1076                 int i, count, *renderlist, *renderlistend, *outrenderlist;
1077         //      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)
1078                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1079                 // byteswap, validate, and swap winding order of tris
1080                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1081                 if (pheader->lump_render.length != count)
1082                         Host_Error("Mod_LoadZymoticModel: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1083                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1084                 renderlist = (void *) (pheader->lump_render.start + pbase);
1085                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1086                 for (i = 0;i < pheader->numshaders;i++)
1087                 {
1088                         if (renderlist >= renderlistend)
1089                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1090                         count = BigLong(*renderlist);renderlist++;
1091                         if (renderlist + count * 3 > renderlistend)
1092                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1093                         *outrenderlist++ = count;
1094                         while (count--)
1095                         {
1096                                 outrenderlist[2] = BigLong(renderlist[0]);
1097                                 outrenderlist[1] = BigLong(renderlist[1]);
1098                                 outrenderlist[0] = BigLong(renderlist[2]);
1099                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1100                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1101                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1102                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1103                                 renderlist += 3;
1104                                 outrenderlist += 3;
1105                         }
1106                 }
1107         }
1108
1109         {
1110                 int i;
1111                 char *shadername;
1112         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1113                 loadmodel->zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1114                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1115                 for (i = 0;i < pheader->numshaders;i++)
1116                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1117         }
1118
1119         {
1120         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1121                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1122                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1123         }
1124 }