int LightWaveParser::parsePolygons() {
int size = readIntBE(in);
int count = 4;
string type = readChunkID(in, 4);
count += 4;
int vsize;
while(count < size) {
short pointCnt = readShortBE(in);
count += 2;
if(pointCnt == 3) {
int i1 = readVariableIntBE(in, vsize);
count += vsize;
int i2 = readVariableIntBE(in, vsize);
count += vsize;
int i3 = readVariableIntBE(in, vsize);
count += vsize;
addFace(i1, i2, i3);
}
else {
printf("count = %d\n", pointCnt);
}
}
return count;
}
void LightWaveParser::loadModel(string fname) {
in.open(fname.c_str(), ios::in | ios::binary);
if (!in.good()) {
fprintf(stderr, "Lightwave Parser: Error opening %s\n", fname.c_str());
return ;
}
string chunkID = readChunkID(in, 4);
int size = readIntBE(in);
int count = 0;
readChunkID(in, 4); // read LWO2
count += 4;
while(count < size) {
chunkID = readChunkID(in, 4);
count += 4;
fprintf(stderr, "ID = %s\n", chunkID.c_str());
if(chunkID == "TAGS") {
count += parseTags();
}
else if(chunkID == "PNTS") {
count += parsePoints();
}
else if(chunkID == "POLS") {
count += parsePolygons();
}
else if(chunkID == "PTAG") {
parsePTag();
}
else if(chunkID == "SURF") {
parseSurface();
}
else {
count += skipChunk();
}
}
in.close();
calculateNormals();
setupCells();
}
int LightWaveParser::parseSurface() {
int size = readIntBE(in);
int count = 4;
string sname = readString(in);
count += sname.size() + 1;
if(sname.size() % 2 == 0) {
count++;
readChar(in);
}
string pname = readString(in);
count += pname.size() + 1;
if(pname.size() % 2 == 0) {
count++;
readChar(in);
}
while(count < size) {
string subName = readChunkID(in, 4);
short subSize = readShortBE(in);
count += 6;
if(subName == "COLR") {
float r = readFloatBE(in);
float b = readFloatBE(in);
float g = readFloatBE(in);
readShortBE(in);
printf("Color = %f, %f, %f\n", r, g, b);
materialMap[sname]->setColor(r, g, b);
materialMap[sname]->setDiffuse(1.0);
}
else if(subName == "DIFF") {
float value = readFloatBE(in);
readShortBE(in);
printf("DIFF = %f\n", value);
materialMap[sname]->setDiffuse(value);
}
else {
printf("subName = %s\n", subName.c_str());
for(int i = 0; i < subSize; i++) {
readChar(in);
}
}
count += subSize;
}
return count;
}
void Riff::processSFList(int size)
{
quint32 chunkID = 0;
if (m_IOStream->atEnd()) return;
chunkID = readChunkID();
size -= 4;
switch (chunkID) {
case CKID_INFO:
processINFO(size);
break;
case CKID_PDTA:
processPDTA(size);
break;
default:
skip(size);
}
}
void Riff::read()
{
quint32 chunkID;
quint32 length = readExpectedChunk(CKID_RIFF);
if (length > 0) {
chunkID = readChunkID();
length -= 4;
switch(chunkID) {
case CKID_DLS:
//qDebug() << "DLS format";
processDLS(length);
break;
case CKID_SFBK:
//qDebug() << "SoundFont format";
processSF(length);
break;
default:
qWarning() << "Unsupported format";
}
}
}
int LightWaveParser::parsePTag() {
int size = readIntBE(in);
int count = 4;
string subtag = readChunkID(in, 4);
if(subtag == "SURF") {
while(count < size) {
short fidx = readShortBE(in);
short tidx = readShortBE(in);
printf("face %d uses %d\n", fidx, tidx);
// faces[fidx]->materialName = tags[tidx];
count += 4;
}
}
else {
char c;
while(count < size) {
c = readChar(in);
count++;
}
}
return size + 4;
}
