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|
struct smd;
struct smdbone
{
string name;
int parent;
smdbone() : parent(-1) { name[0] = '\0'; }
};
struct smd : skelloader<smd>
{
smd(const char *name) : skelloader(name) {}
static const char *formatname() { return "smd"; }
int type() const { return MDL_SMD; }
struct smdmesh : skelmesh
{
};
struct smdmeshgroup : skelmeshgroup
{
smdmeshgroup()
{
}
bool skipcomment(char *&curbuf)
{
while(*curbuf && isspace(*curbuf)) curbuf++;
switch(*curbuf)
{
case '#':
case ';':
case '\r':
case '\n':
case '\0':
return true;
case '/':
if(curbuf[1] == '/') return true;
break;
}
return false;
}
void skipsection(stream *f, char *buf, size_t bufsize)
{
while(f->getline(buf, bufsize))
{
char *curbuf = buf;
if(skipcomment(curbuf)) continue;
if(!strncmp(curbuf, "end", 3)) break;
}
}
void readname(char *&curbuf, char *name, size_t namesize)
{
char *curname = name;
while(*curbuf && isspace(*curbuf)) curbuf++;
bool allowspace = false;
if(*curbuf == '"') { curbuf++; allowspace = true; }
while(*curbuf)
{
char c = *curbuf++;
if(c == '"') break;
if(isspace(c) && !allowspace) break;
if(curname < &name[namesize-1]) *curname++ = c;
}
*curname = '\0';
}
void readnodes(stream *f, char *buf, size_t bufsize, vector<smdbone> &bones)
{
while(f->getline(buf, bufsize))
{
char *curbuf = buf;
if(skipcomment(curbuf)) continue;
if(!strncmp(curbuf, "end", 3)) break;
int id = strtol(curbuf, &curbuf, 10);
string name;
readname(curbuf, name, sizeof(name));
int parent = strtol(curbuf, &curbuf, 10);
if(id < 0 || id > 255 || parent > 255 || !name[0]) continue;
while(!bones.inrange(id)) bones.add();
smdbone &bone = bones[id];
copystring(bone.name, name);
bone.parent = parent;
}
}
void readmaterial(char *&curbuf, char *name, size_t namesize)
{
char *curname = name;
while(*curbuf && isspace(*curbuf)) curbuf++;
while(*curbuf)
{
char c = *curbuf++;
if(isspace(c)) break;
if(c == '.')
{
while(*curbuf && !isspace(*curbuf)) curbuf++;
break;
}
if(curname < &name[namesize-1]) *curname++ = c;
}
*curname = '\0';
}
struct smdmeshdata
{
smdmesh *mesh;
vector<vert> verts;
vector<tri> tris;
void finalize()
{
if(verts.empty() || tris.empty()) return;
vert *mverts = new vert[mesh->numverts + verts.length()];
if(mesh->numverts)
{
memcpy(mverts, mesh->verts, mesh->numverts*sizeof(vert));
delete[] mesh->verts;
}
memcpy(&mverts[mesh->numverts], verts.getbuf(), verts.length()*sizeof(vert));
mesh->numverts += verts.length();
mesh->verts = mverts;
tri *mtris = new tri[mesh->numtris + tris.length()];
if(mesh->numtris)
{
memcpy(mtris, mesh->tris, mesh->numtris*sizeof(tri));
delete[] mesh->tris;
}
memcpy(&mtris[mesh->numtris], tris.getbuf(), tris.length()*sizeof(tri));
mesh->numtris += tris.length();
mesh->tris = mtris;
}
};
struct smdvertkey : vert
{
smdmeshdata *mesh;
smdvertkey(smdmeshdata *mesh) : mesh(mesh) {}
};
void readtriangles(stream *f, char *buf, size_t bufsize)
{
smdmeshdata *curmesh = NULL;
hashtable<const char *, smdmeshdata> materials(1<<6);
hashset<int> verts(1<<12);
while(f->getline(buf, bufsize))
{
char *curbuf = buf;
if(skipcomment(curbuf)) continue;
if(!strncmp(curbuf, "end", 3)) break;
string material;
readmaterial(curbuf, material, sizeof(material));
if(!curmesh || strcmp(curmesh->mesh->name, material))
{
curmesh = materials.access(material);
if(!curmesh)
{
smdmesh *m = new smdmesh;
m->group = this;
m->name = newstring(material);
meshes.add(m);
curmesh = &materials[m->name];
curmesh->mesh = m;
}
}
tri curtri;
loopi(3)
{
char *curbuf;
do
{
if(!f->getline(buf, bufsize)) goto endsection;
curbuf = buf;
} while(skipcomment(curbuf));
smdvertkey key(curmesh);
int parent = -1, numlinks = 0, len = 0;
if(sscanf(curbuf, " %d %f %f %f %f %f %f %f %f %d%n", &parent, &key.pos.x, &key.pos.y, &key.pos.z, &key.norm.x, &key.norm.y, &key.norm.z, &key.tc.x, &key.tc.y, &numlinks, &len) < 9) goto endsection;
curbuf += len;
key.pos.y = -key.pos.y;
key.norm.y = -key.norm.y;
key.tc.y = 1 - key.tc.y;
blendcombo c;
int sorted = 0;
float pweight = 0, tweight = 0;
for(; numlinks > 0; numlinks--)
{
int bone = -1, len = 0;
float weight = 0;
if(sscanf(curbuf, " %d %f%n", &bone, &weight, &len) < 2) break;
curbuf += len;
tweight += weight;
if(bone == parent) pweight += weight;
else sorted = c.addweight(sorted, weight, bone);
}
if(tweight < 1) pweight += 1 - tweight;
if(pweight > 0) sorted = c.addweight(sorted, pweight, parent);
c.finalize(sorted);
key.blend = curmesh->mesh->addblendcombo(c);
int index = verts.access(key, curmesh->verts.length());
if(index == curmesh->verts.length()) curmesh->verts.add(key);
curtri.vert[2-i] = index;
}
curmesh->tris.add(curtri);
}
endsection:
enumerate(materials, smdmeshdata, data, data.finalize());
}
void readskeleton(stream *f, char *buf, size_t bufsize)
{
int frame = -1;
while(f->getline(buf, bufsize))
{
char *curbuf = buf;
if(skipcomment(curbuf)) continue;
if(sscanf(curbuf, " time %d", &frame) == 1) continue;
else if(!strncmp(curbuf, "end", 3)) break;
else if(frame != 0) continue;
int bone;
vec pos, rot;
if(sscanf(curbuf, " %d %f %f %f %f %f %f", &bone, &pos.x, &pos.y, &pos.z, &rot.x, &rot.y, &rot.z) != 7)
continue;
if(bone < 0 || bone >= skel->numbones)
continue;
rot.x = -rot.x;
rot.z = -rot.z;
float cx = cosf(rot.x/2), sx = sinf(rot.x/2),
cy = cosf(rot.y/2), sy = sinf(rot.y/2),
cz = cosf(rot.z/2), sz = sinf(rot.z/2);
pos.y = -pos.y;
dualquat dq(quat(sx*cy*cz - cx*sy*sz,
cx*sy*cz + sx*cy*sz,
cx*cy*sz - sx*sy*cz,
cx*cy*cz + sx*sy*sz),
pos);
boneinfo &b = skel->bones[bone];
if(b.parent < 0) b.base = dq;
else b.base.mul(skel->bones[b.parent].base, dq);
(b.invbase = b.base).invert();
}
}
bool loadmesh(const char *filename)
{
stream *f = openfile(filename, "r");
if(!f) return false;
char buf[512];
int version = -1;
while(f->getline(buf, sizeof(buf)))
{
char *curbuf = buf;
if(skipcomment(curbuf)) continue;
if(sscanf(curbuf, " version %d", &version) == 1)
{
if(version != 1) { delete f; return false; }
}
else if(!strncmp(curbuf, "nodes", 5))
{
if(skel->numbones > 0) { skipsection(f, buf, sizeof(buf)); continue; }
vector<smdbone> bones;
readnodes(f, buf, sizeof(buf), bones);
if(bones.empty()) continue;
skel->numbones = bones.length();
skel->bones = new boneinfo[skel->numbones];
loopv(bones)
{
boneinfo &dst = skel->bones[i];
smdbone &src = bones[i];
dst.name = newstring(src.name);
dst.parent = src.parent;
}
skel->linkchildren();
}
else if(!strncmp(curbuf, "triangles", 9))
readtriangles(f, buf, sizeof(buf));
else if(!strncmp(curbuf, "skeleton", 8))
{
if(skel->shared > 1) skipsection(f, buf, sizeof(buf));
else readskeleton(f, buf, sizeof(buf));
}
else if(!strncmp(curbuf, "vertexanimation", 15))
skipsection(f, buf, sizeof(buf));
}
sortblendcombos();
delete f;
return true;
}
int readframes(stream *f, char *buf, size_t bufsize, vector<dualquat> &animbones)
{
int frame = -1, numframes = 0, lastbone = skel->numbones;
while(f->getline(buf, bufsize))
{
char *curbuf = buf;
if(skipcomment(curbuf)) continue;
int nextframe = -1;
if(sscanf(curbuf, " time %d", &nextframe) == 1)
{
for(; lastbone < skel->numbones; lastbone++) animbones[frame*skel->numbones + lastbone] = animbones[lastbone];
if(nextframe >= numframes)
{
databuf<dualquat> framebones = animbones.reserve(skel->numbones * (nextframe + 1 - numframes));
loopi(nextframe - numframes) framebones.put(animbones.getbuf(), skel->numbones);
animbones.addbuf(framebones);
animbones.advance(skel->numbones);
numframes = nextframe + 1;
}
frame = nextframe;
lastbone = 0;
continue;
}
else if(!strncmp(curbuf, "end", 3)) break;
int bone;
vec pos, rot;
if(sscanf(curbuf, " %d %f %f %f %f %f %f", &bone, &pos.x, &pos.y, &pos.z, &rot.x, &rot.y, &rot.z) != 7)
continue;
if(bone < 0 || bone >= skel->numbones)
continue;
for(; lastbone < bone; lastbone++) animbones[frame*skel->numbones + lastbone] = animbones[lastbone];
lastbone++;
float cx = cosf(rot.x/2), sx = sinf(rot.x/2),
cy = cosf(rot.y/2), sy = sinf(rot.y/2),
cz = cosf(rot.z/2), sz = sinf(rot.z/2);
pos.y = -pos.y;
dualquat dq(quat(-(sx*cy*cz - cx*sy*sz),
cx*sy*cz + sx*cy*sz,
-(cx*cy*sz - sx*sy*cz),
cx*cy*cz + sx*sy*sz),
pos);
if(adjustments.inrange(bone)) adjustments[bone].adjust(dq);
dq.mul(skel->bones[bone].invbase);
dualquat &dst = animbones[frame*skel->numbones + bone];
if(skel->bones[bone].parent < 0) dst = dq;
else dst.mul(skel->bones[skel->bones[bone].parent].base, dq);
dst.fixantipodal(skel->numframes > 0 ? skel->framebones[bone] : animbones[bone]);
}
for(; lastbone < skel->numbones; lastbone++) animbones[frame*skel->numbones + lastbone] = animbones[lastbone];
return numframes;
}
skelanimspec *loadanim(const char *filename)
{
skelanimspec *sa = skel->findskelanim(filename);
if(sa || skel->numbones <= 0) return sa;
stream *f = openfile(filename, "r");
if(!f) return NULL;
char buf[512];
int version = -1;
vector<dualquat> animbones;
while(f->getline(buf, sizeof(buf)))
{
char *curbuf = buf;
if(skipcomment(curbuf)) continue;
if(sscanf(curbuf, " version %d", &version) == 1)
{
if(version != 1) { delete f; return NULL; }
}
else if(!strncmp(curbuf, "nodes", 5))
{
vector<smdbone> bones;
readnodes(f, buf, sizeof(buf), bones);
if(bones.length() != skel->numbones) { delete f; return NULL; }
}
else if(!strncmp(curbuf, "triangles", 9))
skipsection(f, buf, sizeof(buf));
else if(!strncmp(curbuf, "skeleton", 8))
readframes(f, buf, sizeof(buf), animbones);
else if(!strncmp(curbuf, "vertexanimation", 15))
skipsection(f, buf, sizeof(buf));
}
int numframes = animbones.length() / skel->numbones;
dualquat *framebones = new dualquat[(skel->numframes+numframes)*skel->numbones];
if(skel->framebones)
{
memcpy(framebones, skel->framebones, skel->numframes*skel->numbones*sizeof(dualquat));
delete[] skel->framebones;
}
memcpy(&framebones[skel->numframes*skel->numbones], animbones.getbuf(), numframes*skel->numbones*sizeof(dualquat));
skel->framebones = framebones;
sa = &skel->addskelanim(filename);
sa->frame = skel->numframes;
sa->range = numframes;
skel->numframes += numframes;
delete f;
return sa;
}
bool load(const char *meshfile)
{
name = newstring(meshfile);
if(!loadmesh(meshfile)) return false;
return true;
}
};
meshgroup *loadmeshes(const char *name, va_list args)
{
smdmeshgroup *group = new smdmeshgroup;
group->shareskeleton(va_arg(args, char *));
if(!group->load(name)) { delete group; return NULL; }
return group;
}
bool loaddefaultparts()
{
skelpart &mdl = addpart();
mdl.pitchscale = mdl.pitchoffset = mdl.pitchmin = mdl.pitchmax = 0;
adjustments.setsize(0);
const char *fname = name + strlen(name);
do --fname; while(fname >= name && *fname!='/' && *fname!='\\');
fname++;
defformatstring(meshname, "packages/models/%s/%s.smd", name, fname);
mdl.meshes = sharemeshes(path(meshname), NULL);
if(!mdl.meshes) return false;
mdl.initanimparts();
mdl.initskins();
return true;
}
};
static inline uint hthash(const smd::smdmeshgroup::smdvertkey &k)
{
return hthash(k.pos);
}
static inline bool htcmp(const smd::smdmeshgroup::smdvertkey &k, int index)
{
if(!k.mesh->verts.inrange(index)) return false;
const smd::vert &v = k.mesh->verts[index];
return k.pos == v.pos && k.norm == v.norm && k.tc == v.tc && k.blend == v.blend;
}
skelcommands<smd> smdcommands;
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