Load .obj meshes (yuck). They should at least be useful for loading the odd q3 .map file.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5543 fc73d0e0-1445-4013-8a0c-d673dee63da5
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3 changed files with 329 additions and 1 deletions
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@ -9161,6 +9161,330 @@ static qboolean QDECL Mod_LoadCompositeAnim(model_t *mod, void *buffer, size_t f
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#endif //MD5MODELS
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#ifdef MODELFMT_OBJ
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#include <ctype.h>
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struct objvert { size_t attrib[3]; };
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struct objbuf_s { char *ptr; char *end; };
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static char *obj_getline(struct objbuf_s *vf, char *buffer, size_t buflen)
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{
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char in;
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char *out = buffer;
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size_t len;
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if (buflen <= 1)
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return NULL;
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len = buflen-1;
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while (len > 0)
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{
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if (vf->ptr == vf->end)
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{
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if (len == buflen-1)
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return NULL;
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*out = '\0';
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return buffer;
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}
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in = *vf->ptr++;
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if (in == '\n')
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break;
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*out++ = in;
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len--;
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}
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*out = '\0';
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//if there's a trailing \r, strip it.
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if (out > buffer)
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if (out[-1] == '\r')
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out[-1] = 0;
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return buffer;
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}
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struct objattrib_s {
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size_t length;
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size_t maxlength;
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float *data;
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};
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static qboolean parseobjvert(char *s, struct objattrib_s *out)
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{
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int i;
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float *v;
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char *n;
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if (out->length == out->maxlength)
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Z_ReallocElements((void**)&out->data,&out->maxlength,out->length+1024,3*sizeof(float));
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v = out->data+out->length*3;
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out->length++;
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while(isalpha(*s)) s++;
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for (i = 0; i < 3;)
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{
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v[i] = strtod(s, &n);
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if (n==s)
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return false;
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s = n;
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while(isspace(*s)) s++;
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i++;
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if(!*s) break;
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}
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for (; i < 3; i++)
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v[i] = 0;
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return true;
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}
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static galiasinfo_t *Obj_FinishFace(model_t *mod, galiasinfo_t *m, struct objattrib_s *attribs, struct objvert *vert, size_t numverts, index_t *indexes, size_t *numelements)
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{ //this is really lame. not optimised and I don't care.
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qboolean calcnorms = false;
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size_t i;
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if (m && numverts < MAX_INDICIES)
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{
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m->ofs_skel_xyz = ZG_Malloc(&mod->memgroup, sizeof(*m->ofs_skel_xyz)*numverts);
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m->ofs_st_array = ZG_Malloc(&mod->memgroup, sizeof(*m->ofs_st_array)*numverts);
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m->ofs_skel_norm = ZG_Malloc(&mod->memgroup, sizeof(*m->ofs_skel_norm)*numverts);
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m->ofs_skel_svect = ZG_Malloc(&mod->memgroup, sizeof(*m->ofs_skel_svect)*numverts);
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m->ofs_skel_tvect = ZG_Malloc(&mod->memgroup, sizeof(*m->ofs_skel_tvect)*numverts);
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for (i = 0; i < numverts; i++)
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{
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if (vert[i].attrib[0] >= attribs[0].length)
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VectorClear(m->ofs_skel_xyz[i]);
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else
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VectorCopy(attribs[0].data+3*vert[i].attrib[0], m->ofs_skel_xyz[i]);
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AddPointToBounds(m->ofs_skel_xyz[i], mod->mins, mod->maxs);
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if (vert[i].attrib[1] >= attribs[1].length)
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Vector2Clear(m->ofs_st_array[i]);
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else
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Vector2Copy(attribs[1].data+3*vert[i].attrib[1], m->ofs_st_array[i]);
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if (vert[i].attrib[2] >= attribs[2].length)
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{
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VectorClear(m->ofs_skel_norm[i]);
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calcnorms = true;
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}
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else
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VectorCopy(attribs[2].data+3*vert[i].attrib[2], m->ofs_skel_norm[i]);
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}
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m->numverts = i;
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m->ofs_indexes = ZG_Malloc(&mod->memgroup, sizeof(*m->ofs_indexes)**numelements);
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memcpy(m->ofs_indexes, indexes, sizeof(*m->ofs_indexes)**numelements);
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m->numindexes = *numelements;
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//calc tangents.
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Mod_AccumulateTextureVectors(m->ofs_skel_xyz, m->ofs_st_array, m->ofs_skel_norm, m->ofs_skel_svect, m->ofs_skel_tvect, m->ofs_indexes, m->numindexes, calcnorms);
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Mod_NormaliseTextureVectors(m->ofs_skel_norm, m->ofs_skel_svect, m->ofs_skel_tvect, m->numverts, calcnorms);
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*numelements = 0;
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}
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return NULL;
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}
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static qboolean QDECL Mod_LoadObjModel(model_t *mod, void *buffer, size_t fsize)
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{
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struct objbuf_s f = {buffer, buffer+fsize};
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struct objattrib_s attrib[3] = {{},{},{}};
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char buf[512];
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char *meshname = NULL, *matname = NULL;
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galiasinfo_t *m = NULL, **link = (galiasinfo_t**)&mod->meshinfo;
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size_t numverts = 0;
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size_t maxverts = 0;
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struct objvert *vert = NULL, defaultvert={{-1,-1,-1}};
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size_t numelems = 0;
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size_t maxelems = 0;
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index_t *elem = NULL;
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qboolean badinput = false;
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int meshidx = 0;
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ClearBounds(mod->mins, mod->maxs);
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while(!badinput && obj_getline(&f, buf, sizeof(buf)))
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{
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char *c = buf;
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while(isspace(*c)) c++;
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switch(*c)
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{
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case '#': continue;
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case 'v':
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if(isspace(c[1])) badinput |= !parseobjvert(c, &attrib[0]);
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else if(c[1]=='t') badinput |= !parseobjvert(c, &attrib[1]);
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else if(c[1]=='n') badinput |= !parseobjvert(c, &attrib[2]);
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break;
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case 'g':
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{
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char *name;
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size_t namelen;
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while(isalpha(*c)) c++;
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while(isspace(*c)) c++;
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name = c;
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namelen = strlen(name);
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while(namelen > 0 && isspace(name[namelen-1])) namelen--;
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Z_Free(meshname);
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meshname = Z_Malloc(namelen+1);
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memcpy(meshname, name, namelen);
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meshname[namelen] = 0;
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m = Obj_FinishFace(mod, m, attrib, vert, numverts, elem, &numelems);
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break;
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}
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case 'u':
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{
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char *name;
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size_t namelen;
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if(strncmp(c, "usemtl", 6)) continue;
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while(isalpha(*c)) c++;
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while(isspace(*c)) c++;
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name = c;
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namelen = strlen(name);
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while(namelen > 0 && isspace(name[namelen-1])) namelen--;
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Z_Free(matname);
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matname = Z_Malloc(namelen+1);
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memcpy(matname, name, namelen);
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matname[namelen] = 0;
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m = Obj_FinishFace(mod, m, attrib, vert, numverts, elem, &numelems);
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break;
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}
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case 's':
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{
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if(!isspace(c[1])) continue;
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while(isalpha(*c)) c++;
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while(isspace(*c)) c++;
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int key = strtol(c, &c, 10);
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//make sure that these verts are not merged, ensuring that they get smoothed.
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//different texture coords will still have discontinuities though.
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defaultvert.attrib[2] = -2-key;
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break;
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}
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case 'f':
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{
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size_t i, v = 0;
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struct objvert vkey={};
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index_t first=0, prev=0, cur=0;
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//only generate a new mesh if something actually changed.
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if (!m)
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{
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#ifdef HAVE_CLIENT
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galiasskin_t *skin;
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skinframe_t *sframe;
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m = ZG_Malloc(&mod->memgroup, sizeof(*m)+sizeof(*skin)+sizeof(*sframe));
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#else
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m = ZG_Malloc(&mod->memgroup, sizeof(*m));
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#endif
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*link = m;
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link = &m->nextsurf;
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m->shares_verts = meshidx;
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Mod_DefaultMesh(m, COM_SkipPath(mod->name), meshidx++);
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Q_strncpyz(m->surfacename, meshname?meshname:"", sizeof(m->surfacename));
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#ifdef HAVE_CLIENT
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skin = (void*)(m+1);
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sframe = (void*)(skin+1);
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skin->frame = sframe;
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skin->numframes = 1;
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skin->skinspeed = 10;
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Q_strncpyz(skin->name, matname?matname:"", sizeof(skin->name));
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Q_strncpyz(sframe->shadername, matname?matname:"", sizeof(sframe->shadername));
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sframe->shader = NULL;
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m->ofsskins = skin;
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m->numskins = 1;
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#endif
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}
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while(isalpha(*c)) c++;
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for(;;)
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{
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while(isspace(*c)) c++;
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if(!*c) break;
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for (i = 0; i < countof(vkey.attrib); )
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{
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char *n;
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long v;
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v = strtol(c, &n, 10);
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if (c == n) {badinput = true; break;} //not a number if we read nothing!
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if (v < 0)
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vkey.attrib[i] = attrib[i].length + v;
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else
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vkey.attrib[i] = v - 1; //0 is index-not-specified.
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i++;
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c = n;
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if(*c!='/') break;
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c++;
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}
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for (; i < countof(vkey.attrib); i++)
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vkey.attrib[i] = defaultvert.attrib[i];
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//figure out the verts, to avoid dupes
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for (cur = 0; cur < numverts; cur++)
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{
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if (vert[cur].attrib[0] == vkey.attrib[0] &&
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vert[cur].attrib[1] == vkey.attrib[1] &&
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vert[cur].attrib[2] == vkey.attrib[2])
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break;
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}
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if (cur == numverts)
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{
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if (numverts == maxverts)
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Z_ReallocElements((void**)&vert,&maxverts,numverts+1024,sizeof(*vert));
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vert[numverts++] = vkey;
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}
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//spew out the trifan
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if (v == 0)
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first = cur;
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else if (v > 1)
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{
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if (numelems+3 >= maxelems)
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{
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if (numelems >= 65535)
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{
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badinput = true;
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break; //don't depend upon the OOM killer... it kills everything else too
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}
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Z_ReallocElements((void**)&elem,&maxelems,numelems+1024,sizeof(*elem));
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}
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elem[numelems++] = cur;
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elem[numelems++] = prev;
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elem[numelems++] = first;
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}
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prev = cur;
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v++;
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}
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break;
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}
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}
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}
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m = Obj_FinishFace(mod, m, attrib, vert, numverts, elem, &numelems);
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Z_Free(vert);
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Z_Free(elem);
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Z_Free(attrib[0].data);
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Z_Free(attrib[1].data);
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Z_Free(attrib[2].data);
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if (badinput)
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{ //fail the load.
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Con_Printf(CON_WARNING "File \"%s\" with .obj extension does not appear to be an .obj file\n", mod->name);
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mod->meshinfo = NULL;
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return false;
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}
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Mod_ClampModelSize(mod);
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Mod_ParseModelEvents(mod, NULL, 0);
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mod->flags = 0;
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mod->type = mod_alias;
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mod->numframes = 0;
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mod->funcs.NativeTrace = Mod_Trace;
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return !!mod->meshinfo;
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}
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#endif
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void Alias_Register(void)
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{
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@ -9203,4 +9527,7 @@ void Alias_Register(void)
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Mod_RegisterModelFormatText(NULL, "MD5 Mesh/Anim (md5mesh)", "MD5Version", Mod_LoadMD5MeshModel);
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Mod_RegisterModelFormatText(NULL, "External Anim", "EXTERNALANIM", Mod_LoadCompositeAnim);
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#endif
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#ifdef MODELFMT_OBJ
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Mod_RegisterModelFormatText(NULL, "Wavefront Object (obj)", ".obj", Mod_LoadObjModel);
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#endif
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}
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@ -84,6 +84,7 @@
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#define HALFLIFEMODELS //horrible format that doesn't interact well with the rest of FTE's code. Unusable tools (due to license reasons).
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#define INTERQUAKEMODELS //Preferred model format, at least from an idealism perspective.
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#define MODELFMT_MDX //kingpin's format (for hitboxes+geomsets).
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#define MODELFMT_OBJ //lame mesh-only format that needs far too much processing and even lacks a proper magic identifier too
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#define RAGDOLL //ragdoll support. requires RBE support (via a plugin...).
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//Image formats
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@ -1434,7 +1434,7 @@ static void Mod_LoadModelWorker (void *ctx, void *data, size_t a, size_t b)
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//look for known extensions first, to try to avoid issues with specific formats
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for(i = 0; i < countof(modelloaders); i++)
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{
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if (modelloaders[i].load && modelloaders[i].ident && *modelloaders[i].ident == '.' && !Q_strcasecmp(modelloaders[i].ident+1, ext))
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if (modelloaders[i].load && modelloaders[i].ident && *modelloaders[i].ident == '.' && !Q_strcasecmp(modelloaders[i].ident, COM_GetFileExtension(mod->name, NULL)))
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break;
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}
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//now look to see if we can find one with the right magic header
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