2 Copyright (C) 1996-1997 Id Software, Inc.
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.
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.
13 See the GNU General Public License for more details.
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.
28 void Mod_AliasInit (void)
40 //stvert_t stverts[MAXALIASVERTS];
41 //mtriangle_t triangles[MAXALIASTRIS];
43 // a pose is a single set of vertexes. a frame may be
44 // an animating sequence of poses
45 //trivertx_t *poseverts[MAXALIASFRAMES];
48 byte **player_8bit_texels_tbl;
49 byte *player_8bit_texels;
51 float aliasbboxmin[3], aliasbboxmax[3]; // LordHavoc: proper bounding box considerations
53 // LordHavoc: changed to use the normals from the model data itself
54 #define NUMVERTEXNORMALS 162
55 extern float r_avertexnormals[NUMVERTEXNORMALS][3];
56 void Mod_ConvertAliasVerts (int numverts, int numtris, vec3_t scale, vec3_t translate, trivertx_t *v, trivert2 *out)
60 for (i = 0;i < numverts;i++)
62 VectorCopy(v[i].v, out[i].v);
63 temp[0] = v[i].v[0] * scale[0] + translate[0];
64 temp[1] = v[i].v[1] * scale[1] + translate[1];
65 temp[2] = v[i].v[2] * scale[2] + translate[2];
66 // update bounding box
67 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
68 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
69 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
70 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
71 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
72 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
73 out[i].n[0] = (signed char) (r_avertexnormals[v[i].lightnormalindex][0] * 127.0);
74 out[i].n[1] = (signed char) (r_avertexnormals[v[i].lightnormalindex][1] * 127.0);
75 out[i].n[2] = (signed char) (r_avertexnormals[v[i].lightnormalindex][2] * 127.0);
85 } tempvert[MD2MAX_VERTS];
87 // decompress vertices
88 for (i = 0;i < numverts;i++)
90 VectorCopy(v[i].v, out[i].v);
91 tempvert[i].v[0] = v[i].v[0] * scale[0] + translate[0];
92 tempvert[i].v[1] = v[i].v[1] * scale[1] + translate[1];
93 tempvert[i].v[2] = v[i].v[2] * scale[2] + translate[2];
94 tempvert[i].normal[0] = tempvert[i].normal[1] = tempvert[i].normal[2] = 0;
95 tempvert[i].count = 0;
96 // update bounding box
97 if (tempvert[i].v[0] < aliasbboxmin[0]) aliasbboxmin[0] = tempvert[i].v[0];
98 if (tempvert[i].v[1] < aliasbboxmin[1]) aliasbboxmin[1] = tempvert[i].v[1];
99 if (tempvert[i].v[2] < aliasbboxmin[2]) aliasbboxmin[2] = tempvert[i].v[2];
100 if (tempvert[i].v[0] > aliasbboxmax[0]) aliasbboxmax[0] = tempvert[i].v[0];
101 if (tempvert[i].v[1] > aliasbboxmax[1]) aliasbboxmax[1] = tempvert[i].v[1];
102 if (tempvert[i].v[2] > aliasbboxmax[2]) aliasbboxmax[2] = tempvert[i].v[2];
104 // calculate surface normals
106 for (i = 0;i < numtris;i++)
108 VectorSubtract(tempvert[tris->v[0]].v, tempvert[tris->v[1]].v, t1);
109 VectorSubtract(tempvert[tris->v[2]].v, tempvert[tris->v[1]].v, t2);
110 CrossProduct(t1, t2, tris->normal);
111 VectorNormalize(tris->normal);
112 // add surface normal to vertices
113 for (j = 0;j < 3;j++)
115 VectorAdd(tris->normal, tempvert[tris->v[j]].normal, tempvert[tris->v[j]].normal);
116 tempvert[tris->v[j]].count++;
120 // average normals and write out 1.7bit format
121 for (i = 0;i < pheader->numtris;i++)
123 VectorNormalize(tempvert[i].normal);
124 out[i].n[0] = (signed char) (tempvert[i].normal[0] * 127.0);
125 out[i].n[1] = (signed char) (tempvert[i].normal[1] * 127.0);
126 out[i].n[2] = (signed char) (tempvert[i].normal[2] * 127.0);
136 void * Mod_LoadAliasFrame (void * pin, maliasframedesc_t *frame)
138 trivertx_t *pinframe;
140 daliasframe_t *pdaliasframe;
142 pdaliasframe = (daliasframe_t *)pin;
144 strcpy (frame->name, pdaliasframe->name);
145 frame->firstpose = posenum;
148 for (i=0 ; i<3 ; i++)
150 // these are byte values, so we don't have to worry about
152 frame->bboxmin.v[i] = pdaliasframe->bboxmin.v[i];
153 frame->bboxmax.v[i] = pdaliasframe->bboxmax.v[i]; // LordHavoc: was setting bboxmin a second time (bug)
156 pinframe = (trivertx_t *)(pdaliasframe + 1);
158 // poseverts[posenum] = pinframe;
159 Mod_ConvertAliasVerts(pheader->numverts, pheader->numtris, pheader->scale, pheader->scale_origin, pinframe, (void *)((int) pheader + pheader->posedata + sizeof(trivert2) * pheader->numverts * posenum));
160 // // LordHavoc: copy the frame data
161 // memcpy((void *)((int) pheader + pheader->posedata + sizeof(trivertx_t) * pheader->numverts * posenum), pinframe, sizeof(trivertx_t) * pheader->numverts);
164 pinframe += pheader->numverts;
166 return (void *)pinframe;
175 void *Mod_LoadAliasGroup (void * pin, maliasframedesc_t *frame)
177 daliasgroup_t *pingroup;
179 daliasinterval_t *pin_intervals;
182 pingroup = (daliasgroup_t *)pin;
184 numframes = LittleLong (pingroup->numframes);
186 frame->firstpose = posenum;
187 frame->numposes = numframes;
189 for (i=0 ; i<3 ; i++)
191 // these are byte values, so we don't have to worry about endianness
192 frame->bboxmin.v[i] = pingroup->bboxmin.v[i];
193 frame->bboxmax.v[i] = pingroup->bboxmax.v[i]; // LordHavoc: was setting bboxmin a second time (bug)
196 pin_intervals = (daliasinterval_t *)(pingroup + 1);
198 frame->interval = LittleFloat (pin_intervals->interval);
200 pin_intervals += numframes;
202 ptemp = (void *)pin_intervals;
204 for (i=0 ; i<numframes ; i++)
206 // poseverts[posenum] = (trivertx_t *)((daliasframe_t *)ptemp + 1);
207 Mod_ConvertAliasVerts(pheader->numverts, pheader->numtris, pheader->scale, pheader->scale_origin, (void *)((daliasframe_t *)ptemp + 1), (void *)((int) pheader + pheader->posedata + sizeof(trivert2) * pheader->numverts * posenum));
208 // // LordHavoc: copy the frame data
209 // memcpy((void *)((int) pheader + pheader->posedata + sizeof(trivertx_t) * pheader->numverts * posenum), (void *)((daliasframe_t *)ptemp + 1), sizeof(trivertx_t) * pheader->numverts);
212 ptemp = (trivertx_t *)((daliasframe_t *)ptemp + 1) + pheader->numverts;
218 //=========================================================
224 Fill background pixels so mipmapping doesn't have haloes - Ed
233 extern unsigned d_8to24table[];
235 // must be a power of 2
236 #define FLOODFILL_FIFO_SIZE 0x1000
237 #define FLOODFILL_FIFO_MASK (FLOODFILL_FIFO_SIZE - 1)
239 #define FLOODFILL_STEP( off, dx, dy ) \
241 if (pos[off] == fillcolor) \
244 fifo[inpt].x = x + (dx), fifo[inpt].y = y + (dy); \
245 inpt = (inpt + 1) & FLOODFILL_FIFO_MASK; \
247 else if (pos[off] != 255) fdc = pos[off]; \
250 void Mod_FloodFillSkin( byte *skin, int skinwidth, int skinheight )
252 byte fillcolor = *skin; // assume this is the pixel to fill
253 floodfill_t fifo[FLOODFILL_FIFO_SIZE];
254 int inpt = 0, outpt = 0;
255 int filledcolor = -1;
258 if (filledcolor == -1)
261 // attempt to find opaque black
262 for (i = 0; i < 256; ++i)
263 if (d_8to24table[i] == (255 << 0)) // alpha 1.0
270 // can't fill to filled color or to transparent color (used as visited marker)
271 if ((fillcolor == filledcolor) || (fillcolor == 255))
273 //printf( "not filling skin from %d to %d\n", fillcolor, filledcolor );
277 fifo[inpt].x = 0, fifo[inpt].y = 0;
278 inpt = (inpt + 1) & FLOODFILL_FIFO_MASK;
280 while (outpt != inpt)
282 int x = fifo[outpt].x, y = fifo[outpt].y;
283 int fdc = filledcolor;
284 byte *pos = &skin[x + skinwidth * y];
286 outpt = (outpt + 1) & FLOODFILL_FIFO_MASK;
288 if (x > 0) FLOODFILL_STEP( -1, -1, 0 );
289 if (x < skinwidth - 1) FLOODFILL_STEP( 1, 1, 0 );
290 if (y > 0) FLOODFILL_STEP( -skinwidth, 0, -1 );
291 if (y < skinheight - 1) FLOODFILL_STEP( skinwidth, 0, 1 );
292 skin[x + skinwidth * y] = fdc;
301 void *Mod_LoadAllSkins (int numskins, daliasskintype_t *pskintype, int bytesperpixel)
308 daliasskingroup_t *pinskingroup;
310 daliasskininterval_t *pinskinintervals;
312 skin = (byte *)(pskintype + 1);
314 if (numskins < 1 || numskins > MAX_SKINS)
315 Host_Error ("Mod_LoadAliasModel: Invalid # of skins: %d\n", numskins);
317 s = pheader->skinwidth * pheader->skinheight;
319 for (i = 0;i < numskins;i++)
321 if (pskintype->type == ALIAS_SKIN_SINGLE)
323 if (bytesperpixel == 1)
324 Mod_FloodFillSkin( skin, pheader->skinwidth, pheader->skinheight );
326 // save 8 bit texels for the player model to remap
327 // if (!strcmp(loadmodel->name,"progs/player.mdl")) {
328 texels = Hunk_AllocName(s, loadname);
329 pheader->texels[i] = texels - (byte *)pheader;
330 memcpy (texels, (byte *)(pskintype + 1), s);
332 sprintf (name, "%s_%i", loadmodel->name, i);
333 pheader->gl_texturenum[i][0] =
334 pheader->gl_texturenum[i][1] =
335 pheader->gl_texturenum[i][2] =
336 pheader->gl_texturenum[i][3] =
337 GL_LoadTexture (name, pheader->skinwidth, pheader->skinheight, (byte *)(pskintype + 1), true, false, bytesperpixel);
338 pskintype = (daliasskintype_t *)((byte *)(pskintype+1) + s);
342 // animating skin group. yuck.
344 pinskingroup = (daliasskingroup_t *)pskintype;
345 groupskins = LittleLong (pinskingroup->numskins);
346 pinskinintervals = (daliasskininterval_t *)(pinskingroup + 1);
348 pskintype = (void *)(pinskinintervals + groupskins);
350 for (j = 0;j < groupskins;j++)
352 if (bytesperpixel == 1)
353 Mod_FloodFillSkin( skin, pheader->skinwidth, pheader->skinheight );
356 texels = Hunk_AllocName(s, loadname);
357 pheader->texels[i] = texels - (byte *)pheader;
358 memcpy (texels, (byte *)(pskintype), s);
360 sprintf (name, "%s_%i_%i", loadmodel->name, i,j);
361 pheader->gl_texturenum[i][j&3] =
362 GL_LoadTexture (name, pheader->skinwidth, pheader->skinheight, (byte *)(pskintype), true, false, bytesperpixel);
363 pskintype = (daliasskintype_t *)((byte *)(pskintype) + s);
367 pheader->gl_texturenum[i][j&3] = pheader->gl_texturenum[i][j - k];
371 return (void *)pskintype;
374 //=========================================================================
376 //void GL_MakeAliasModelDisplayLists (model_t *m, aliashdr_t *hdr);
383 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid VALUE (%d exceeds %d - %d)\n", mod->name, VALUE, MIN, MAX);
384 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid VALUE (%g exceeds %g - %g)\n", mod->name, VALUE, MIN, MAX);
385 void Mod_LoadAliasModel (model_t *mod, void *buffer)
387 int i, j, version, numframes, size, start, end, total;
389 stvert_t *pinstverts;
390 dtriangle_t *pintriangles;
391 daliasframetype_t *pframetype;
392 daliasskintype_t *pskintype;
393 // LordHavoc: 32bit textures
395 unsigned short *poutvertindices;
396 float *pouttexcoords, scales, scalet;
399 start = Hunk_LowMark ();
402 temptris = malloc(sizeof(temptris_t) * MD2MAX_TRIANGLES);
404 pinmodel = (mdl_t *)buffer;
406 version = LittleLong (pinmodel->version);
407 if (version != ALIAS_VERSION && version != ALIAS32_VERSION)
408 Host_Error ("%s has wrong version number (%i should be %i or %i)",
409 mod->name, version, ALIAS_VERSION, ALIAS32_VERSION);
411 mod->type = ALIASTYPE_MDL;
414 // allocate space for a working header, plus all the data except the frames,
415 // skin and group info
417 // size = sizeof (aliashdr_t) + (LittleLong (pinmodel->numframes) - 1) * sizeof (pinmodel->frames[0]));
418 size = sizeof (aliashdr_t);
419 size += LittleLong (pinmodel->numverts) * sizeof(float[2][2]);
420 size += LittleLong (pinmodel->numtris) * sizeof(unsigned short[3]);
421 size += LittleLong (pinmodel->numframes) * (sizeof(trivert2) * LittleLong (pinmodel->numverts) + sizeof(maliasframedesc_t));
422 BOUNDI(size,256,4194304);
423 pheader = Hunk_AllocName (size, loadname);
425 mod->flags = LittleLong (pinmodel->flags);
426 mod->type = mod_alias;
428 // endian-adjust and copy the data, starting with the alias model header
429 pheader->boundingradius = LittleFloat (pinmodel->boundingradius);
430 BOUNDF(pheader->boundingradius,0,65536);
431 pheader->numskins = LittleLong (pinmodel->numskins);
432 BOUNDI(pheader->numskins,0,256);
433 pheader->skinwidth = LittleLong (pinmodel->skinwidth);
434 BOUNDI(pheader->skinwidth,0,4096);
435 pheader->skinheight = LittleLong (pinmodel->skinheight);
436 BOUNDI(pheader->skinheight,0,1024);
437 //LordHavoc: 32bit textures
438 bytesperpixel = version == ALIAS32_VERSION ? 4 : 1;
440 // if (pheader->skinheight > MAX_LBM_HEIGHT)
441 // Host_Error ("model %s has a skin taller than %d", mod->name, MAX_LBM_HEIGHT);
443 pheader->numverts = LittleLong (pinmodel->numverts);
444 BOUNDI(pheader->numverts,0,MAXALIASVERTS);
446 if (pheader->numverts <= 0)
447 Host_Error ("model %s has no vertices", mod->name);
448 if (pheader->numverts > MAXALIASVERTS)
449 Host_Error ("model %s has too many vertices", mod->name);
452 pheader->numtris = LittleLong (pinmodel->numtris);
453 BOUNDI(pheader->numtris,0,65536);
454 // if (pheader->numtris <= 0)
455 // Host_Error ("model %s has no triangles", mod->name);
457 pheader->numframes = LittleLong (pinmodel->numframes);
458 BOUNDI(pheader->numframes,0,65536);
459 numframes = pheader->numframes;
460 // if (numframes < 1)
461 // Host_Error ("Mod_LoadAliasModel: Invalid # of frames: %d\n", numframes);
463 pheader->size = LittleFloat (pinmodel->size) * ALIAS_BASE_SIZE_RATIO;
464 BOUNDF(pheader->size,0,65536);
465 mod->synctype = LittleLong (pinmodel->synctype);
466 BOUNDI(pheader->synctype,0,2);
467 mod->numframes = pheader->numframes;
469 for (i=0 ; i<3 ; i++)
471 pheader->scale[i] = LittleFloat (pinmodel->scale[i]);
472 BOUNDF(pheader->scale[i],0,65536);
473 pheader->scale_origin[i] = LittleFloat (pinmodel->scale_origin[i]);
474 BOUNDF(pheader->scale_origin[i],-65536,65536);
475 pheader->eyeposition[i] = LittleFloat (pinmodel->eyeposition[i]);
476 BOUNDF(pheader->eyeposition[i],-65536,65536);
480 pskintype = (daliasskintype_t *)&pinmodel[1];
481 pskintype = Mod_LoadAllSkins (pheader->numskins, pskintype, bytesperpixel);
483 // load base s and t vertices
484 pinstverts = (stvert_t *)pskintype;
485 pouttexcoords = (float *)&pheader->frames[numframes];
486 pheader->texcoords = (int) pouttexcoords - (int) pheader;
488 // LordHavoc: byteswap and convert stvert data
489 scales = 1.0 / pheader->skinwidth;
490 scalet = 1.0 / pheader->skinheight;
491 for (i = 0;i < pheader->numverts;i++)
493 pouttexcoords[i*2] = LittleLong (pinstverts[i].s) * scales;
494 pouttexcoords[i*2+1] = LittleLong (pinstverts[i].t) * scalet;
495 pouttexcoords[(i+pheader->numverts)*2] = LittleLong (pinstverts[i].s) * scales + 0.5;
496 pouttexcoords[(i+pheader->numverts)*2+1] = LittleLong (pinstverts[i].t) * scalet;
497 if (pouttexcoords[i*2] >= 0.5) // already a back side coordinate
499 pouttexcoords[i*2] -= 0.5;
500 pouttexcoords[(i+pheader->numverts)*2] -= 0.5;
502 BOUNDF(pouttexcoords[i*2],0,1);
503 BOUNDF(pouttexcoords[i*2+1],0,1);
504 BOUNDF(pouttexcoords[(i+pheader->numverts)*2],0,1);
505 BOUNDF(pouttexcoords[(i+pheader->numverts)*2+1],0,1);
508 // load triangle data
509 pintriangles = (dtriangle_t *)&pinstverts[pheader->numverts];
510 poutvertindices = (unsigned short *)&pouttexcoords[pheader->numverts*4];
511 pheader->vertindices = (int) poutvertindices - (int) pheader;
512 // LordHavoc: sort triangles into front and back lists
513 // so they can be drawn refering to different texture coordinate arrays,
514 // but sharing vertex data
515 pheader->frontfaces = 0;
516 pheader->backfaces = 0;
518 for (i=0 ; i<pheader->numtris ; i++)
520 if (LittleLong(pintriangles[i].facesfront))
522 pheader->frontfaces++;
523 for (j=0 ; j<3 ; j++)
524 *poutvertindices++ = LittleLong (pintriangles[i].vertindex[j]);
526 for (j=0 ; j<3 ; j++)
527 tris->v[j] = LittleLong (pintriangles[i].vertindex[j]);
530 for (i=0 ; i<pheader->numtris ; i++)
532 if (!LittleLong(pintriangles[i].facesfront))
534 pheader->backfaces++;
535 for (j=0 ; j<3 ; j++)
536 *poutvertindices++ = LittleLong (pintriangles[i].vertindex[j]);
542 pheader->posedata = (int) poutvertindices - (int) pheader;
543 pframetype = (daliasframetype_t *)&pintriangles[pheader->numtris];
545 // LordHavoc: doing proper bbox for model
546 aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
547 aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
549 for (i=0 ; i<numframes ; i++)
551 aliasframetype_t frametype;
553 frametype = LittleLong (pframetype->type);
555 if (frametype == ALIAS_SINGLE)
556 pframetype = (daliasframetype_t *) Mod_LoadAliasFrame (pframetype + 1, &pheader->frames[i]);
558 pframetype = (daliasframetype_t *) Mod_LoadAliasGroup (pframetype + 1, &pheader->frames[i]);
561 pheader->numposes = posenum;
563 // LordHavoc: fixed model bbox - was //FIXME: do this right
564 //mod->mins[0] = mod->mins[1] = mod->mins[2] = -16;
565 //mod->maxs[0] = mod->maxs[1] = mod->maxs[2] = 16;
566 for (j = 0;j < 3;j++)
568 mod->mins[j] = aliasbboxmin[j];
569 mod->maxs[j] = aliasbboxmax[j];
572 // move the complete, relocatable alias model to the cache
573 end = Hunk_LowMark ();
576 Cache_Alloc (&mod->cache, total, loadname);
577 if (!mod->cache.data)
579 memcpy (mod->cache.data, pheader, total);
581 Hunk_FreeToLowMark (start);
589 int loadtextureimage (int texnum, char* filename, qboolean complain, int matchwidth, int matchheight);
590 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
592 int i, j, version, size, *pinglcmd, *poutglcmd, start, end, total, framesize;
595 md2triangle_t *pintriangles, *pouttriangles;
596 md2frame_t *pinframe;
597 md2memframe_t *poutframe;
601 start = Hunk_LowMark ();
604 temptris = malloc(sizeof(temptris_t) * MD2MAX_TRIANGLES);
606 pinmodel = (md2_t *)buffer;
608 version = LittleLong (pinmodel->version);
609 if (version != MD2ALIAS_VERSION)
610 Host_Error ("%s has wrong version number (%i should be %i)",
611 mod->name, version, MD2ALIAS_VERSION);
613 mod->type = mod_alias;
614 mod->aliastype = ALIASTYPE_MD2;
616 framesize = sizeof(md2memframe_t) + LittleLong(pinmodel->num_xyz) * sizeof(trivert2);
617 // LordHavoc: calculate size for in memory version
618 size = sizeof(md2mem_t)
619 + LittleLong(pinmodel->num_st) * sizeof(md2stvert_t)
620 + LittleLong(pinmodel->num_tris) * sizeof(md2triangle_t)
621 + LittleLong(pinmodel->num_frames) * framesize
622 + LittleLong(pinmodel->num_glcmds) * sizeof(int);
623 if (size <= 0 || size >= MD2MAX_SIZE)
624 Host_Error ("%s is not a valid model", mod->name);
625 pheader = Hunk_AllocName (size, loadname);
627 mod->flags = 0; // there are no MD2 flags
628 mod->numframes = LittleLong(pinmodel->num_frames);
629 mod->synctype = ST_RAND;
631 if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= LittleLong(pinmodel->ofs_end)))
632 Host_Error ("%s is not a valid model", mod->name);
633 if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= LittleLong(pinmodel->ofs_end))
634 Host_Error ("%s is not a valid model", mod->name);
635 if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= LittleLong(pinmodel->ofs_end))
636 Host_Error ("%s is not a valid model", mod->name);
637 if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= LittleLong(pinmodel->ofs_end))
638 Host_Error ("%s is not a valid model", mod->name);
639 if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= LittleLong(pinmodel->ofs_end))
640 Host_Error ("%s is not a valid model", mod->name);
642 if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
643 Host_Error ("%s has invalid number of triangles: %i", mod->name, LittleLong(pinmodel->num_tris));
644 if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
645 Host_Error ("%s has invalid number of vertices: %i", mod->name, LittleLong(pinmodel->num_xyz));
646 if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > 256) //MD2MAX_FRAMES)
647 Host_Error ("%s has invalid number of frames: %i", mod->name, LittleLong(pinmodel->num_frames));
648 if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MD2MAX_SKINS)
649 Host_Error ("%s has invalid number of skins: %i", mod->name, LittleLong(pinmodel->num_skins));
651 pheader->framesize = framesize;
652 pheader->num_skins = LittleLong(pinmodel->num_skins);
653 pheader->num_xyz = LittleLong(pinmodel->num_xyz);
654 pheader->num_st = LittleLong(pinmodel->num_st);
655 pheader->num_tris = LittleLong(pinmodel->num_tris);
656 pheader->num_frames = LittleLong(pinmodel->num_frames);
657 pheader->num_glcmds = LittleLong(pinmodel->num_glcmds);
660 if (pheader->num_skins)
662 pinskins = (void*)((int) pinmodel + LittleLong(pinmodel->ofs_skins));
663 for (i = 0;i < pheader->num_skins;i++)
665 pheader->gl_texturenum[i] = loadtextureimage (-1, pinskins, TRUE, 0, 0);
666 pinskins += MD2MAX_SKINNAME;
671 pintriangles = (void*)((int) pinmodel + LittleLong(pinmodel->ofs_tris));
672 pouttriangles = (void*)&pheader[1];
673 pheader->ofs_tris = (int) pouttriangles - (int) pheader;
675 // swap the triangle list
676 for (i=0 ; i<pheader->num_tris ; i++)
678 for (j=0 ; j<3 ; j++)
680 tris->v[j] = pouttriangles->index_xyz[j] = LittleShort (pintriangles->index_xyz[j]);
681 pouttriangles->index_st[j] = LittleShort (pintriangles->index_st[j]);
682 if (pouttriangles->index_xyz[j] >= pheader->num_xyz)
683 Host_Error ("%s has invalid vertex indices", mod->name);
684 if (pouttriangles->index_st[j] >= pheader->num_st)
685 Host_Error ("%s has invalid vertex indices", mod->name);
692 // LordHavoc: doing proper bbox for model
693 aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
694 aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
697 pinframe = (void*) ((int) pinmodel + LittleLong(pinmodel->ofs_frames));
698 poutframe = (void*) pouttriangles;
699 pheader->ofs_frames = (int) poutframe - (int) pheader;
700 for (i=0 ; i<pheader->num_frames ; i++)
702 for (j = 0;j < 3;j++)
704 poutframe->scale[j] = LittleFloat(pinframe->scale[j]);
705 poutframe->translate[j] = LittleFloat(pinframe->translate[j]);
707 Mod_ConvertAliasVerts (pheader->num_xyz, pheader->num_tris, poutframe->scale, poutframe->translate, &pinframe->verts[0], &poutframe->verts[0]);
708 pinframe = (void*) &pinframe->verts[j];
709 poutframe = (void*) &poutframe->verts[j];
712 // LordHavoc: model bbox
713 for (j = 0;j < 3;j++)
715 mod->mins[j] = aliasbboxmin[j];
716 mod->maxs[j] = aliasbboxmax[j];
719 // load the draw list
720 pinglcmd = (void*) ((int) pinmodel + LittleLong(pinmodel->ofs_glcmds));
721 poutglcmd = (void*) poutframe;
722 pheader->ofs_glcmds = (int) poutglcmd - (int) pheader;
723 for (i = 0;i < pheader->num_glcmds;i++)
724 *poutglcmd++ = LittleLong(*pinglcmd++);
726 // move the complete, relocatable alias model to the cache
727 end = Hunk_LowMark ();
730 Cache_Alloc (&mod->cache, total, loadname);
731 if (!mod->cache.data)
733 memcpy (mod->cache.data, pheader, total);
735 Hunk_FreeToLowMark (start);