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)
34 float aliasbboxmin[3], aliasbboxmax[3]; // LordHavoc: proper bounding box considerations
37 float vertst[MAXVERTS][2];
38 int vertusage[MAXVERTS];
39 int vertonseam[MAXVERTS];
40 int vertremap[MAXVERTS];
41 unsigned short temptris[MAXVERTS][3];
43 #define NUMVERTEXNORMALS 162
44 extern float r_avertexnormals[NUMVERTEXNORMALS][3];
45 void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, trivert2 *out)
49 for (i = 0;i < inverts;i++)
51 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
53 temp[0] = v[i].v[0] * scale[0] + translate[0];
54 temp[1] = v[i].v[1] * scale[1] + translate[1];
55 temp[2] = v[i].v[2] * scale[2] + translate[2];
56 // update bounding box
57 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
58 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
59 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
60 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
61 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
62 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
63 j = vertremap[i]; // not onseam
66 VectorCopy(v[i].v, out[j].v);
67 out[j].n[0] = (signed char) (r_avertexnormals[v[i].lightnormalindex][0] * 127.0);
68 out[j].n[1] = (signed char) (r_avertexnormals[v[i].lightnormalindex][1] * 127.0);
69 out[j].n[2] = (signed char) (r_avertexnormals[v[i].lightnormalindex][2] * 127.0);
71 j = vertremap[i+inverts]; // onseam
74 VectorCopy(v[i].v, out[j].v);
75 out[j].n[0] = (signed char) (r_avertexnormals[v[i].lightnormalindex][0] * 127.0);
76 out[j].n[1] = (signed char) (r_avertexnormals[v[i].lightnormalindex][1] * 127.0);
77 out[j].n[2] = (signed char) (r_avertexnormals[v[i].lightnormalindex][2] * 127.0);
87 void * Mod_LoadAliasFrame (void *pin, maliasframe_t *frame, maliashdr_t *mheader, int inverts, int outverts, trivert2 **posevert)
90 daliasframe_t *pdaliasframe;
92 pdaliasframe = (daliasframe_t *)pin;
94 strcpy(frame->name, pdaliasframe->name);
95 frame->start = posenum;
97 frame->rate = 10.0f; // unnecessary but...
99 pinframe = (trivertx_t *)(pdaliasframe + 1);
101 Mod_ConvertAliasVerts(inverts, mheader->scale, mheader->scale_origin, pinframe, *posevert);
102 *posevert += outverts;
107 return (void *)pinframe;
116 void *Mod_LoadAliasGroup (void *pin, maliasframe_t *frame, maliashdr_t *mheader, int inverts, int outverts, trivert2 **posevert)
122 numframes = LittleLong (((daliasgroup_t *)pin)->numframes);
124 strcpy(frame->name, "group");
125 frame->start = posenum;
126 frame->length = numframes;
127 interval = LittleFloat (((daliasinterval_t *)(((daliasgroup_t *)pin) + 1))->interval); // FIXME: support variable framerate groups?
128 if (interval < 0.01f)
129 Host_Error("Mod_LoadAliasGroup: invalid interval");
130 frame->rate = 1.0f / interval;
132 ptemp = (void *)(((daliasinterval_t *)(((daliasgroup_t *)pin) + 1)) + numframes);
134 for (i=0 ; i<numframes ; i++)
136 ((daliasframe_t *)ptemp)++;
137 Mod_ConvertAliasVerts(inverts, mheader->scale, mheader->scale_origin, ptemp, *posevert);
138 *posevert += outverts;
140 ptemp = (trivertx_t *)ptemp + inverts;
146 //=========================================================
152 Fill background pixels so mipmapping doesn't have haloes - Ed
161 // must be a power of 2
162 #define FLOODFILL_FIFO_SIZE 0x1000
163 #define FLOODFILL_FIFO_MASK (FLOODFILL_FIFO_SIZE - 1)
165 #define FLOODFILL_STEP( off, dx, dy ) \
167 if (pos[off] == fillcolor) \
170 fifo[inpt].x = x + (dx), fifo[inpt].y = y + (dy); \
171 inpt = (inpt + 1) & FLOODFILL_FIFO_MASK; \
173 else if (pos[off] != 255) fdc = pos[off]; \
176 void Mod_FloodFillSkin( byte *skin, int skinwidth, int skinheight )
178 byte fillcolor = *skin; // assume this is the pixel to fill
179 floodfill_t fifo[FLOODFILL_FIFO_SIZE];
180 int inpt = 0, outpt = 0;
181 int filledcolor = -1;
184 if (filledcolor == -1)
187 // attempt to find opaque black
188 for (i = 0; i < 256; ++i)
189 if (d_8to24table[i] == (255 << 0)) // alpha 1.0
196 // can't fill to filled color or to transparent color (used as visited marker)
197 if ((fillcolor == filledcolor) || (fillcolor == 255))
199 //printf( "not filling skin from %d to %d\n", fillcolor, filledcolor );
203 fifo[inpt].x = 0, fifo[inpt].y = 0;
204 inpt = (inpt + 1) & FLOODFILL_FIFO_MASK;
206 while (outpt != inpt)
208 int x = fifo[outpt].x, y = fifo[outpt].y;
209 int fdc = filledcolor;
210 byte *pos = &skin[x + skinwidth * y];
212 outpt = (outpt + 1) & FLOODFILL_FIFO_MASK;
214 if (x > 0) FLOODFILL_STEP( -1, -1, 0 );
215 if (x < skinwidth - 1) FLOODFILL_STEP( 1, 1, 0 );
216 if (y > 0) FLOODFILL_STEP( -skinwidth, 0, -1 );
217 if (y < skinheight - 1) FLOODFILL_STEP( skinwidth, 0, 1 );
218 skin[x + skinwidth * y] = fdc;
222 int GL_SkinSplitShirt(byte *in, byte *out, int width, int height, unsigned short bits, char *name)
224 int i, pixels, passed;
226 for (i = 0;i < 16;i++)
227 pixeltest[i] = (bits & (1 << i)) != 0;
228 pixels = width*height;
232 if (pixeltest[*in >> 4] && *in != 0 && *in != 255)
235 // turn to white while copying
236 if (*in >= 128 && *in < 224) // backwards ranges
237 *out = (*in & 15) ^ 15;
247 return GL_LoadTexture (name, width, height, out - width*height, true, false, 1);
252 int GL_SkinSplit(byte *in, byte *out, int width, int height, unsigned short bits, char *name)
254 int i, pixels, passed;
256 for (i = 0;i < 16;i++)
257 pixeltest[i] = (bits & (1 << i)) != 0;
258 pixels = width*height;
262 if (pixeltest[*in >> 4] && *in != 0 && *in != 255)
273 return GL_LoadTexture (name, width, height, out - width*height, true, false, 1);
278 int GL_SkinCheck(byte *in, int width, int height, unsigned short bits)
280 int i, pixels, passed;
282 for (i = 0;i < 16;i++)
283 pixeltest[i] = (bits & (1 << i)) != 0;
284 pixels = width*height;
288 if (pixeltest[*in >> 4] && *in != 0 && *in != 255)
295 void Mod_LoadSkin (maliashdr_t *mheader, char *basename, byte *skindata, byte *skintemp, int width, int height, int *skintexnum)
298 int skin_normal, skin_pants, skin_shirt, skin_glow, skin_body, temp;
299 skin_normal = loadtextureimage(va("%s_normal", basename));
300 skin_pants = loadtextureimage(va("%s_pants" , basename));
301 skin_shirt = loadtextureimage(va("%s_shirt" , basename));
302 skin_glow = loadtextureimage(va("%s_glow" , basename));
303 skin_body = loadtextureimage(va("%s_body" , basename));
304 if (!(skin_normal || skin_pants || skin_shirt || skin_glow || skin_body))
305 skin_body = loadtextureimage(name);
306 if (skin_normal || skin_pants || skin_shirt || skin_glow || skin_body)
308 skintexnum[0] = skin_normal;
309 skintexnum[1] = skin_pants;
310 skintexnum[2] = skin_shirt;
311 skintexnum[3] = skin_glow;
312 skintexnum[4] = skin_body;
316 Mod_FloodFillSkin(skin, width, height);
317 skin_normal = GL_SkinCheck((byte *)pskintype, width, height, 0x3FBD);
318 skin_pants = GL_SkinCheck((byte *)pskintype, width, height, 0x0040);
319 skin_shirt = GL_SkinCheck((byte *)pskintype, width, height, 0x0002);
320 skin_glow = GL_SkinCheck((byte *)pskintype, width, height, 0xC000);
321 skin_body = GL_SkinCheck((byte *)pskintype, width, height, 0x3FFF);
322 if (skin_pants || skin_shirt)
325 saveskin = Hunk_AllocName(width*height, va("%s skin", loadname));
326 memcpy((saveskin, byte *)pskintype, width*height);
327 temp = (int) saveskin - (int) mheader;
328 skintexnum[0] = skin_normal ? -temp : 0;
329 skintexnum[1] = skin_pants ? -temp : 0;
330 skintexnum[2] = skin_shirt ? -temp : 0;
331 skintexnum[3] = GL_SkinSplit((byte *)pskintype, skintemp, width, height, 0xC000, va("%s_glow", basename)); // glow
332 skintexnum[4] = GL_SkinSplit((byte *)pskintype, skintemp, width, height, 0x3FFF, va("%s_body", basename)); // body (normal + pants + shirt, but not glow)
339 skintexnum[3] = GL_SkinSplit((byte *)pskintype, skintemp, width, height, 0xC000, va("%s_glow", basename)); // glow
340 skintexnum[4] = GL_SkinSplit((byte *)pskintype, skintemp, width, height, 0x3FFF, va("%s_body", basename)); // body (normal + pants + shirt, but not glow)
344 skintexnum[0] = loadtextureimage(va("%s_normal", basename), 0, 0, false, true);
347 skintexnum[3] = loadtextureimage(va("%s_glow" , basename), 0, 0, false, true);
351 skintexnum[1] = loadtextureimage(va("%s_pants" , basename), 0, 0, false, true);
352 skintexnum[2] = loadtextureimage(va("%s_shirt" , basename), 0, 0, false, true);
356 skintexnum[0] = loadtextureimage(basename, 0, 0, false, true);
359 skintexnum[0] = GL_SkinSplit(skindata, skintemp, width, height, 0x3FBD, va("&%s_normal", basename)); // normal (no special colors)
360 skintexnum[1] = GL_SkinSplitShirt(skindata, skintemp, width, height, 0x0040, va("&%s_pants", basename)); // pants
361 skintexnum[2] = GL_SkinSplitShirt(skindata, skintemp, width, height, 0x0002, va("&%s_shirt", basename)); // shirt
362 skintexnum[3] = GL_SkinSplit(skindata, skintemp, width, height, 0xC000, va("%s_glow", basename)); // glow
363 skintexnum[4] = GL_SkinSplit(skindata, skintemp, width, height, 0x3FFF, va("%s_body", basename)); // body (normal + pants + shirt, but not glow)
374 void *Mod_LoadAllSkins (maliashdr_t *mheader, int numskins, daliasskintype_t *pskintype, int width, int height)
380 daliasskingroup_t *pinskingroup;
382 daliasskininterval_t *pinskinintervals;
383 int skinranges, skincount, *skintexnum, *skinrange, skinnum;
385 byte *skintemp = NULL;
387 skin = (byte *)(pskintype + 1);
389 if (numskins < 1 || numskins > MAX_SKINS)
390 Host_Error ("Mod_LoadAliasModel: Invalid # of skins: %d\n", numskins);
393 skintemp = qmalloc(s);
395 // LordHavoc: skim the data, measure the number of skins and number of groups
396 skinranges = numskins;
399 for (i = 0;i < numskins;i++)
402 if (pskintype[-1].type == ALIAS_SKIN_SINGLE)
405 (byte *)pskintype += s;
409 groupskins = LittleLong (((daliasskingroup_t *)pskintype)->numskins);
410 skincount += groupskins;
411 (byte *)pskintype += (s + sizeof(daliasskininterval_t)) * groupskins + sizeof(daliasskingroup_t);
416 skinrange = loadmodel->skinanimrange;
417 skintexnum = loadmodel->skinanim;
418 // skinrange = Hunk_AllocName (sizeof(int) * (skinranges + skincount), loadname);
419 // skintexnum = skinrange + skinranges * 2;
420 // loadmodel->skinanimrange = (int) skinrange - (int) pheader;
421 // loadmodel->skinanim = (int) skintexnum - (int) pheader;
423 for (i = 0;i < numskins;i++)
425 *skinrange++ = skinnum; // start of the range
427 if (pskintype[-1].type == ALIAS_SKIN_SINGLE)
429 *skinrange++ = 1; // single skin
431 sprintf (name, "%s_%i", loadmodel->name, i);
432 Mod_LoadSkin(mheader, name, (byte *)pskintype, skintemp, width, height, skintexnum);
434 pskintype = (daliasskintype_t *)((byte *)(pskintype) + s);
438 // animating skin group. yuck.
439 pinskingroup = (daliasskingroup_t *)pskintype;
440 groupskins = LittleLong (pinskingroup->numskins);
441 pinskinintervals = (daliasskininterval_t *)(pinskingroup + 1);
443 pskintype = (void *)(pinskinintervals + groupskins);
445 *skinrange++ = groupskins; // number of skins
446 skinnum += groupskins;
447 for (j = 0;j < groupskins;j++)
449 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
450 Mod_LoadSkin(mheader, name, (byte *)pskintype, skintemp, width, height, skintexnum);
452 pskintype = (daliasskintype_t *)((byte *)(pskintype) + s);
456 loadmodel->numskins = numskins;
459 return (void *)pskintype;
462 void *Mod_SkipAllSkins (int numskins, daliasskintype_t *pskintype, int skinsize)
465 for (i = 0;i < numskins;i++)
468 if (pskintype[-1].type == ALIAS_SKIN_SINGLE)
469 (byte *)pskintype += skinsize;
471 (byte *)pskintype += (skinsize + sizeof(daliasskininterval_t)) * LittleLong (((daliasskingroup_t *)pskintype)->numskins) + sizeof(daliasskingroup_t);
476 //=========================================================================
478 //void GL_MakeAliasModelDisplayLists (model_t *m, aliashdr_t *hdr);
485 #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);
486 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid VALUE (%f exceeds %f - %f)\n", mod->name, VALUE, MIN, MAX);
487 void Mod_LoadAliasModel (model_t *mod, void *buffer)
489 int i, j, version, numframes, start, end, total, numverts, numtris, numposes, numskins, skinwidth, skinheight, f, totalverts;
491 stvert_t *pinstverts;
492 dtriangle_t *pintriangles;
493 daliasframetype_t *pframetype;
494 daliasskintype_t *pskintype;
495 float *pouttexcoords, scales, scalet;
496 maliashdr_t *mheader;
497 unsigned short *pouttris;
498 maliasframe_t *frame;
501 start = Hunk_LowMark ();
503 pinmodel = (mdl_t *)buffer;
505 version = LittleLong (pinmodel->version);
506 if (version != ALIAS_VERSION)
507 Host_Error ("%s has wrong version number (%i should be %i)",
508 mod->name, version, ALIAS_VERSION);
510 mod->type = mod_alias;
511 mod->aliastype = ALIASTYPE_MDL;
513 numframes = LittleLong(pinmodel->numframes);
514 BOUNDI(numframes,0,65536);
515 numverts = LittleLong(pinmodel->numverts);
516 BOUNDI(numverts,0,MAXALIASVERTS);
517 numtris = LittleLong(pinmodel->numtris);
518 BOUNDI(numtris,0,65536);
519 numskins = LittleLong(pinmodel->numskins);
520 BOUNDI(numskins,0,256);
521 skinwidth = LittleLong (pinmodel->skinwidth);
522 BOUNDI(skinwidth,0,4096);
523 skinheight = LittleLong (pinmodel->skinheight);
524 BOUNDI(skinheight,0,1024);
526 pskintype = (daliasskintype_t *)&pinmodel[1];
527 pinstverts = (stvert_t *)Mod_SkipAllSkins (numskins, pskintype, skinwidth * skinheight);
528 pintriangles = (dtriangle_t *)&pinstverts[numverts];
529 pframetype = (daliasframetype_t *)&pintriangles[numtris];
532 for (i=0 ; i<numframes ; i++)
534 if ((aliasframetype_t) LittleLong (pframetype->type) == ALIAS_SINGLE)
537 pframetype = (daliasframetype_t *)((int)pframetype + sizeof(daliasframetype_t) + (sizeof(daliasframe_t) + sizeof(trivertx_t) * numverts) );
541 f = LittleLong (((daliasgroup_t *)((int)pframetype + sizeof(daliasframetype_t)))->numframes);
543 pframetype = (daliasframetype_t *)((int)pframetype + sizeof(daliasframetype_t) + sizeof(daliasgroup_t) + (sizeof(daliasframe_t) + sizeof(daliasinterval_t) + sizeof(trivertx_t) * numverts) * f);
548 mheader = Hunk_AllocName (sizeof(maliashdr_t), va("%s model header", loadname));
549 mod->flags = LittleLong (pinmodel->flags);
550 mod->type = mod_alias;
551 // endian-adjust and copy the data, starting with the alias model header
552 mheader->numverts = numverts;
553 mod->numtris = mheader->numtris = numtris;
554 mod->numframes = mheader->numframes = numframes;
555 mod->synctype = LittleLong (pinmodel->synctype);
556 BOUNDI(mod->synctype,0,2);
558 for (i=0 ; i<3 ; i++)
560 mheader->scale[i] = LittleFloat (pinmodel->scale[i]);
561 BOUNDF(mheader->scale[i],0,65536);
562 mheader->scale_origin[i] = LittleFloat (pinmodel->scale_origin[i]);
563 BOUNDF(mheader->scale_origin[i],-65536,65536);
567 pskintype = (daliasskintype_t *)&pinmodel[1];
568 pskintype = Mod_LoadAllSkins(mheader, numskins, pskintype, skinwidth, skinheight);
570 // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
571 pinstverts = (stvert_t *)pskintype;
573 // LordHavoc: byteswap and convert stvert data
574 scales = 1.0 / skinwidth;
575 scalet = 1.0 / skinheight;
576 for (i = 0;i < numverts;i++)
578 vertonseam[i] = LittleLong(pinstverts[i].onseam);
579 vertst[i][0] = LittleLong(pinstverts[i].s) * scales;
580 vertst[i][1] = LittleLong(pinstverts[i].t) * scalet;
581 vertst[i+numverts][0] = vertst[i][0] + 0.5;
582 vertst[i+numverts][1] = vertst[i][1];
584 vertusage[i+numverts] = 0;
587 // load triangle data
588 pouttris = Hunk_AllocName(sizeof(unsigned short[3]) * numtris, va("%s triangles", loadname));
589 mheader->tridata = (int) pouttris - (int) mheader;
590 pintriangles = (dtriangle_t *)&pinstverts[mheader->numverts];
592 // count the vertices used
593 for (i = 0;i < numverts*2;i++)
595 for (i = 0;i < numtris;i++)
597 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
598 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
599 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
600 if (!LittleLong(pintriangles[i].facesfront)) // backface
602 if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
603 if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
604 if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
606 vertusage[temptris[i][0]]++;
607 vertusage[temptris[i][1]]++;
608 vertusage[temptris[i][2]]++;
610 // build remapping table and compact array
612 for (i = 0;i < numverts*2;i++)
616 vertremap[i] = totalverts;
617 vertst[totalverts][0] = vertst[i][0];
618 vertst[totalverts][1] = vertst[i][1];
622 vertremap[i] = -1; // not used at all
624 mheader->numverts = totalverts;
625 // remap the triangle references
626 for (i = 0;i < numtris;i++)
628 *pouttris++ = vertremap[temptris[i][0]];
629 *pouttris++ = vertremap[temptris[i][1]];
630 *pouttris++ = vertremap[temptris[i][2]];
632 // store the texture coordinates
633 pouttexcoords = Hunk_AllocName(sizeof(float[2]) * totalverts, va("%s texcoords", loadname));
634 mheader->texdata = (int) pouttexcoords - (int) mheader;
635 for (i = 0;i < totalverts;i++)
637 *pouttexcoords++ = vertst[i][0];
638 *pouttexcoords++ = vertst[i][1];
643 frame = Hunk_AllocName(sizeof(maliasframe_t) * numframes, va("%s frame info", loadname));
644 mheader->framedata = (int) frame - (int) mheader;
645 posevert = Hunk_AllocName(sizeof(trivert2) * numposes * totalverts, va("%s vertex data", loadname));
646 mheader->posedata = (int) posevert - (int) mheader;
647 pframetype = (daliasframetype_t *)&pintriangles[numtris];
649 // LordHavoc: doing proper bbox for model
650 aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
651 aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
653 for (i=0 ; i<numframes ; i++)
655 if ((aliasframetype_t) LittleLong (pframetype->type) == ALIAS_SINGLE)
656 pframetype = (daliasframetype_t *) Mod_LoadAliasFrame (pframetype + 1, frame++, mheader, numverts, totalverts, &posevert);
658 pframetype = (daliasframetype_t *) Mod_LoadAliasGroup (pframetype + 1, frame++, mheader, numverts, totalverts, &posevert);
661 // LordHavoc: fixed model bbox - was //FIXME: do this right
662 //mod->mins[0] = mod->mins[1] = mod->mins[2] = -16;
663 //mod->maxs[0] = mod->maxs[1] = mod->maxs[2] = 16;
664 for (j = 0;j < 3;j++)
666 mod->mins[j] = aliasbboxmin[j];
667 mod->maxs[j] = aliasbboxmax[j];
670 // move the complete, relocatable alias model to the cache
671 end = Hunk_LowMark ();
674 Cache_Alloc (&mod->cache, total, loadname);
675 if (!mod->cache.data)
677 memcpy (mod->cache.data, mheader, total);
679 Hunk_FreeToLowMark (start);
682 void Mod_ConvertQ2AliasVerts (int numverts, vec3_t scale, vec3_t translate, trivertx_t *v, trivert2 *out)
686 for (i = 0;i < numverts;i++)
688 VectorCopy(v[i].v, out[i].v);
689 temp[0] = v[i].v[0] * scale[0] + translate[0];
690 temp[1] = v[i].v[1] * scale[1] + translate[1];
691 temp[2] = v[i].v[2] * scale[2] + translate[2];
692 // update bounding box
693 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
694 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
695 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
696 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
697 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
698 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
699 out[i].n[0] = (signed char) (r_avertexnormals[v[i].lightnormalindex][0] * 127.0);
700 out[i].n[1] = (signed char) (r_avertexnormals[v[i].lightnormalindex][1] * 127.0);
701 out[i].n[2] = (signed char) (r_avertexnormals[v[i].lightnormalindex][2] * 127.0);
711 } tempvert[MD2MAX_VERTS];
713 // decompress vertices
714 for (i = 0;i < numverts;i++)
716 VectorCopy(v[i].v, out[i].v);
717 tempvert[i].v[0] = v[i].v[0] * scale[0] + translate[0];
718 tempvert[i].v[1] = v[i].v[1] * scale[1] + translate[1];
719 tempvert[i].v[2] = v[i].v[2] * scale[2] + translate[2];
720 tempvert[i].normal[0] = tempvert[i].normal[1] = tempvert[i].normal[2] = 0;
721 tempvert[i].count = 0;
722 // update bounding box
723 if (tempvert[i].v[0] < aliasbboxmin[0]) aliasbboxmin[0] = tempvert[i].v[0];
724 if (tempvert[i].v[1] < aliasbboxmin[1]) aliasbboxmin[1] = tempvert[i].v[1];
725 if (tempvert[i].v[2] < aliasbboxmin[2]) aliasbboxmin[2] = tempvert[i].v[2];
726 if (tempvert[i].v[0] > aliasbboxmax[0]) aliasbboxmax[0] = tempvert[i].v[0];
727 if (tempvert[i].v[1] > aliasbboxmax[1]) aliasbboxmax[1] = tempvert[i].v[1];
728 if (tempvert[i].v[2] > aliasbboxmax[2]) aliasbboxmax[2] = tempvert[i].v[2];
730 // calculate surface normals
732 for (i = 0;i < numtris;i++)
734 VectorSubtract(tempvert[tris->v[0]].v, tempvert[tris->v[1]].v, t1);
735 VectorSubtract(tempvert[tris->v[2]].v, tempvert[tris->v[1]].v, t2);
736 CrossProduct(t1, t2, tris->normal);
737 VectorNormalize(tris->normal);
738 // add surface normal to vertices
739 for (j = 0;j < 3;j++)
741 VectorAdd(tris->normal, tempvert[tris->v[j]].normal, tempvert[tris->v[j]].normal);
742 tempvert[tris->v[j]].count++;
746 // average normals and write out 1.7bit format
747 for (i = 0;i < pheader->numtris;i++)
749 VectorNormalize(tempvert[i].normal);
750 out[i].n[0] = (signed char) (tempvert[i].normal[0] * 127.0);
751 out[i].n[1] = (signed char) (tempvert[i].normal[1] * 127.0);
752 out[i].n[2] = (signed char) (tempvert[i].normal[2] * 127.0);
762 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
764 int i, j, version, size, *pinglcmd, *poutglcmd, start, end, total, framesize;
767 md2triangle_t *pintriangles, *pouttriangles;
768 md2frame_t *pinframe;
769 md2memframe_t *poutframe;
773 start = Hunk_LowMark ();
776 // temptris = qmalloc(sizeof(temptris_t) * MD2MAX_TRIANGLES);
778 pinmodel = (md2_t *)buffer;
780 version = LittleLong (pinmodel->version);
781 if (version != MD2ALIAS_VERSION)
782 Host_Error ("%s has wrong version number (%i should be %i)",
783 mod->name, version, MD2ALIAS_VERSION);
785 mod->type = mod_alias;
786 mod->aliastype = ALIASTYPE_MD2;
788 framesize = sizeof(md2memframesize_t) + LittleLong(pinmodel->num_xyz) * sizeof(trivert2);
789 // LordHavoc: calculate size for in memory version
790 size = sizeof(md2mem_t)
791 + LittleLong(pinmodel->num_st) * sizeof(md2stvert_t)
792 + LittleLong(pinmodel->num_tris) * sizeof(md2triangle_t)
793 + LittleLong(pinmodel->num_frames) * framesize
794 + LittleLong(pinmodel->num_glcmds) * sizeof(int);
795 if (size <= 0 || size >= MD2MAX_SIZE)
796 Host_Error ("%s is not a valid model", mod->name);
797 pheader = Hunk_AllocName (size, va("%s Quake2 model", loadname));
799 mod->flags = 0; // there are no MD2 flags
800 mod->numframes = LittleLong(pinmodel->num_frames);
801 mod->synctype = ST_RAND;
802 mod->numtris = LittleLong(pinmodel->num_tris); // LordHavoc: to simplify renderer decisions
804 if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= LittleLong(pinmodel->ofs_end)))
805 Host_Error ("%s is not a valid model", mod->name);
806 if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= LittleLong(pinmodel->ofs_end))
807 Host_Error ("%s is not a valid model", mod->name);
808 if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= LittleLong(pinmodel->ofs_end))
809 Host_Error ("%s is not a valid model", mod->name);
810 if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= LittleLong(pinmodel->ofs_end))
811 Host_Error ("%s is not a valid model", mod->name);
812 if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= LittleLong(pinmodel->ofs_end))
813 Host_Error ("%s is not a valid model", mod->name);
815 if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
816 Host_Error ("%s has invalid number of triangles: %i", mod->name, LittleLong(pinmodel->num_tris));
817 if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
818 Host_Error ("%s has invalid number of vertices: %i", mod->name, LittleLong(pinmodel->num_xyz));
819 if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
820 Host_Error ("%s has invalid number of frames: %i", mod->name, LittleLong(pinmodel->num_frames));
821 if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MD2MAX_SKINS)
822 Host_Error ("%s has invalid number of skins: %i", mod->name, LittleLong(pinmodel->num_skins));
824 pheader->framesize = framesize;
825 pheader->num_skins = LittleLong(pinmodel->num_skins);
826 pheader->num_xyz = LittleLong(pinmodel->num_xyz);
827 pheader->num_st = LittleLong(pinmodel->num_st);
828 pheader->num_tris = LittleLong(pinmodel->num_tris);
829 pheader->num_frames = LittleLong(pinmodel->num_frames);
830 pheader->num_glcmds = LittleLong(pinmodel->num_glcmds);
833 if (pheader->num_skins)
835 int *skin, *skinrange;
836 skinrange = loadmodel->skinanimrange;
837 skin = loadmodel->skinanim;
838 // skinrange = Hunk_AllocName (sizeof(int) * (pheader->num_skins * 2), loadname);
839 // skin = skinrange + pheader->num_skins * 2;
840 // loadmodel->skinanimrange = (int) skinrange - (int) pheader;
841 // loadmodel->skinanim = (int) skin - (int) pheader;
842 pinskins = (void*)((int) pinmodel + LittleLong(pinmodel->ofs_skins));
843 for (i = 0;i < pheader->num_skins;i++)
847 *skin++ = loadtextureimage (pinskins, 0, 0, true, true);
848 *skin++ = 0; // the extra 4 layers are currently unused
852 pinskins += MD2MAX_SKINNAME;
855 loadmodel->numskins = pheader->num_skins;
858 pintriangles = (void*)((int) pinmodel + LittleLong(pinmodel->ofs_tris));
859 pouttriangles = (void*)&pheader[1];
860 pheader->ofs_tris = (int) pouttriangles - (int) pheader;
862 // swap the triangle list
863 for (i=0 ; i<pheader->num_tris ; i++)
865 for (j=0 ; j<3 ; j++)
867 temptris[i][j] = pouttriangles->index_xyz[j] = LittleShort (pintriangles->index_xyz[j]);
868 pouttriangles->index_st[j] = LittleShort (pintriangles->index_st[j]);
869 if (pouttriangles->index_xyz[j] >= pheader->num_xyz)
870 Host_Error ("%s has invalid vertex indices", mod->name);
871 if (pouttriangles->index_st[j] >= pheader->num_st)
872 Host_Error ("%s has invalid vertex indices", mod->name);
878 // LordHavoc: doing proper bbox for model
879 aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
880 aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
883 pinframe = (void*) ((int) pinmodel + LittleLong(pinmodel->ofs_frames));
884 poutframe = (void*) pouttriangles;
885 pheader->ofs_frames = (int) poutframe - (int) pheader;
886 for (i=0 ; i<pheader->num_frames ; i++)
888 for (j = 0;j < 3;j++)
890 strcpy(poutframe->name, pinframe->name);
891 poutframe->scale[j] = LittleFloat(pinframe->scale[j]);
892 poutframe->translate[j] = LittleFloat(pinframe->translate[j]);
894 Mod_ConvertQ2AliasVerts (pheader->num_xyz, poutframe->scale, poutframe->translate, &pinframe->verts[0], &poutframe->verts[0]);
895 pinframe = (void*) &pinframe->verts[j];
896 poutframe = (void*) &poutframe->verts[j];
899 // LordHavoc: model bbox
900 for (j = 0;j < 3;j++)
902 mod->mins[j] = aliasbboxmin[j];
903 mod->maxs[j] = aliasbboxmax[j];
906 // load the draw list
907 pinglcmd = (void*) ((int) pinmodel + LittleLong(pinmodel->ofs_glcmds));
908 poutglcmd = (void*) poutframe;
909 pheader->ofs_glcmds = (int) poutglcmd - (int) pheader;
910 for (i = 0;i < pheader->num_glcmds;i++)
911 *poutglcmd++ = LittleLong(*pinglcmd++);
913 // move the complete, relocatable alias model to the cache
914 end = Hunk_LowMark ();
917 Cache_Alloc (&mod->cache, total, loadname);
918 if (!mod->cache.data)
920 memcpy (mod->cache.data, pheader, total);
922 Hunk_FreeToLowMark (start);
925 void swapintblock(int *m, int size)
932 void Mod_LoadZymoticModel (model_t *mod, void *buffer)
934 int i, pbase, start, end, total, *skin, *skinrange, *texturenum;
936 zymtype1header_t *pinmodel, *pheader;
940 start = Hunk_LowMark ();
942 pinmodel = (void *)buffer;
944 if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
945 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
947 if (BigLong(pinmodel->type) != 1)
948 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported\n");
950 mod->type = mod_alias;
951 mod->aliastype = ALIASTYPE_ZYM;
953 pheader = Hunk_AllocName (BigLong(pinmodel->filesize), va("%s Zymotic model", loadname));
955 pbase = (int) pheader;
957 memcpy(pheader, pinmodel, BigLong(pinmodel->filesize));
960 memcpy(pheader->id, pinmodel->id, 12);
961 pheader->type = BigLong(pheader->type);
962 pheader->filesize = BigLong(pheader->filesize);
963 pheader->mins[0] = BigFloat(pheader->mins[0]);
964 pheader->mins[1] = BigFloat(pheader->mins[1]);
965 pheader->mins[2] = BigFloat(pheader->mins[2]);
966 pheader->maxs[0] = BigFloat(pheader->maxs[0]);
967 pheader->maxs[1] = BigFloat(pheader->maxs[1]);
968 pheader->maxs[2] = BigFloat(pheader->maxs[2]);
969 pheader->radius = BigFloat(pheader->radius);
970 pheader->numverts = BigLong(pheader->numverts);
971 pheader->numtris = BigLong(pheader->numtris);
972 pheader->numshaders = BigLong(pheader->numshaders);
973 pheader->numbones = BigLong(pheader->numbones);
974 pheader->numscenes = BigLong(pheader->numscenes);
977 pheader->lump_scenes.start = BigLong(pheader->lump_scenes.start);pheader->lump_scenes.length = BigLong(pheader->lump_scenes.length);
978 pheader->lump_poses.start = BigLong(pheader->lump_poses.start);pheader->lump_poses.length = BigLong(pheader->lump_poses.length);
979 pheader->lump_bones.start = BigLong(pheader->lump_bones.start);pheader->lump_bones.length = BigLong(pheader->lump_bones.length);
980 pheader->lump_vertbonecounts.start = BigLong(pheader->lump_vertbonecounts.start);pheader->lump_vertbonecounts.length = BigLong(pheader->lump_vertbonecounts.length);
981 pheader->lump_verts.start = BigLong(pheader->lump_verts.start);pheader->lump_verts.length = BigLong(pheader->lump_verts.length);
982 pheader->lump_texcoords.start = BigLong(pheader->lump_texcoords.start);pheader->lump_texcoords.length = BigLong(pheader->lump_texcoords.length);
983 pheader->lump_render.start = BigLong(pheader->lump_render.start);pheader->lump_render.length = BigLong(pheader->lump_render.length);
984 pheader->lump_shaders.start = BigLong(pheader->lump_shaders.start);pheader->lump_shaders.length = BigLong(pheader->lump_shaders.length);
985 pheader->lump_trizone.start = BigLong(pheader->lump_trizone.start);pheader->lump_trizone.length = BigLong(pheader->lump_trizone.length);
987 mod->flags = 0; // there are no flags
988 mod->numframes = pheader->numscenes;
989 mod->synctype = ST_SYNC;
990 mod->numtris = pheader->numtris;
992 // FIXME: add skin support and texturing and shaders and...
994 skinrange = loadmodel->skinanimrange;
995 skin = loadmodel->skinanim;
996 // skinrange = Hunk_AllocName (sizeof(int) * (pheader->num_skins * 2), loadname);
997 // skin = skinrange + pheader->num_skins * 2;
998 // loadmodel->skinanimrange = (int) skinrange - (int) pheader;
999 // loadmodel->skinanim = (int) skin - (int) pheader;
1007 loadmodel->numskins = 1;
1009 // go through the lumps, swapping things
1011 // zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1012 scene = (void *) (pheader->lump_scenes.start + pbase);
1013 for (i = 0;i < pheader->numscenes;i++)
1015 scene->mins[0] = BigFloat(scene->mins[0]);
1016 scene->mins[1] = BigFloat(scene->mins[1]);
1017 scene->mins[2] = BigFloat(scene->mins[2]);
1018 scene->maxs[0] = BigFloat(scene->maxs[0]);
1019 scene->maxs[1] = BigFloat(scene->maxs[1]);
1020 scene->maxs[2] = BigFloat(scene->maxs[2]);
1021 scene->radius = BigFloat(scene->radius);
1022 scene->framerate = BigFloat(scene->framerate);
1023 scene->flags = BigLong(scene->flags);
1024 scene->start = BigLong(scene->start);
1025 scene->length = BigLong(scene->length);
1029 // zymlump_t lump_poses; // float pose[numposes][numbones][6]; // animation data
1030 swapintblock((void *) (pheader->lump_poses.start + pbase), pheader->lump_poses.length);
1032 // zymlump_t lump_bones; // zymbone_t bone[numbones];
1033 bone = (void *) (pheader->lump_bones.start + pbase);
1034 for (i = 0;i < pheader->numbones;i++)
1036 bone->flags = BigLong(bone->flags);
1037 bone->parent = BigLong(bone->parent);
1041 // zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1042 swapintblock((void *) (pheader->lump_vertbonecounts.start + pbase), pheader->lump_vertbonecounts.length);
1044 // zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1045 swapintblock((void *) (pheader->lump_verts.start + pbase), pheader->lump_verts.length);
1047 // zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1048 swapintblock((void *) (pheader->lump_texcoords.start + pbase), pheader->lump_texcoords.length);
1050 // zymlump_t lump_render; // int renderlist[rendersize]; // sorted by shader with run lengths (int shader, count), each run can be used with glDrawElements (each triangle is 3 int indices)
1051 swapintblock((void *) (pheader->lump_render.start + pbase), pheader->lump_render.length);
1053 // zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1054 shadername = (void *) (pheader->lump_shaders.start + pbase);
1055 texturenum = (void *) shadername;
1056 for (i = 0;i < pheader->numshaders;i++)
1059 j = loadtextureimage(shadername, 0, 0, true, true);
1061 *texturenum++ = j; // reuse shader name list for texture numbers
1064 // zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1065 swapintblock((void *) (pheader->lump_trizone.start + pbase), pheader->lump_trizone.length);
1068 for (i = 0;i < 3;i++)
1070 mod->mins[i] = pheader->mins[i];
1071 mod->maxs[i] = pheader->maxs[i];
1074 // move the complete, relocatable alias model to the cache
1075 end = Hunk_LowMark ();
1076 total = end - start;
1078 Cache_Alloc (&mod->cache, total, loadname);
1079 if (!mod->cache.data)
1081 memcpy (mod->cache.data, pheader, total);
1083 Hunk_FreeToLowMark (start);