void objLoader::readObjFile(t3DModel *pModel) {
char strLine[255] = {0};
char ch = 0;
while(!feof(m_FilePointer)) {
float x = 0.0f, y = 0.0f, z = 0.0f;
ch = fgetc(m_FilePointer);
switch(ch) {
case 'v':
if(m_bJustReadAFace) {
fillInObjectInfo(pModel);
}
readVertexInfo();
break;
case 'f':
readFaceInfo();
break;
case '\n':
break;
default:
fgets(strLine, 100, m_FilePointer);
break;
}
}
fillInObjectInfo(pModel);
}
/** main loop for reading in the .obj file */
void Obj::readFile(tOBJModel *pmodel)
{
char line[256];
while (! feof(fp)) {
switch (fgetc(fp)) { // get the beginning character of the current line
case 'v': // check if we just read in a 'v' (vertice/normal/textureCoord)
if (bJustReadAFace) fillInObjectInfo(pmodel); // save the last object's info
readVertexInfo(); // see if it's a vertex "v", normal "vn", or UV coordinate "vt"
break;
case 'f': // check if we just read in a face header ('f')
readFaceInfo();
bJustReadAFace = true;
break;
default:
fgets(line, sizeof(line), fp);
break;
}
}
fillInObjectInfo(pmodel); // we are done reading in the file
}
bool PtexReader::open(const char* path, Ptex::String& error)
{
if (!LittleEndian()) {
error = "Ptex library doesn't currently support big-endian cpu's";
return 0;
}
_path = path;
_fp = _io->open(path);
if (!_fp) {
std::string errstr = "Can't open ptex file: ";
errstr += path;
errstr += "\n";
errstr += _io->lastError();
error = errstr.c_str();
return 0;
}
readBlock(&_header, HeaderSize);
if (_header.magic != Magic) {
std::string errstr = "Not a ptex file: ";
errstr += path;
error = errstr.c_str();
return 0;
}
if (_header.version != 1) {
char ver[21];
snprintf(ver, 20, "%d", _header.version);
std::string errstr = "Unsupported ptex file version (";
errstr += ver;
errstr += "): ";
errstr += path;
error = errstr.c_str();
return 0;
}
_pixelsize = _header.pixelSize();
// read extended header
memset(&_extheader, 0, sizeof(_extheader));
readBlock(&_extheader, PtexUtils::min(uint32_t(ExtHeaderSize), _header.extheadersize));
// compute offsets of various blocks
FilePos pos = tell();
_faceinfopos = pos;
pos += _header.faceinfosize;
_constdatapos = pos;
pos += _header.constdatasize;
_levelinfopos = pos;
pos += _header.levelinfosize;
_leveldatapos = pos;
pos += _header.leveldatasize;
_metadatapos = pos;
pos += _header.metadatazipsize;
pos += sizeof(uint64_t); // compatibility barrier
_lmdheaderpos = pos;
pos += _extheader.lmdheaderzipsize;
_lmddatapos = pos;
pos += _extheader.lmddatasize;
// edit data may not start immediately if additional sections have been added
// use value from extheader if present (and > pos)
_editdatapos = PtexUtils::max(FilePos(_extheader.editdatapos), pos);
// read basic file info
readFaceInfo();
readConstData();
readLevelInfo();
readEditData();
// an error occurred while reading the file
if (!_ok) {
error = _error.c_str();
return 0;
}
return 1;
}