void FilesystemBinding::CreateTempDirectory(const ValueList& args, KValueRef result)
{
try
{
Poco::TemporaryFile tempDir;
tempDir.keepUntilExit();
tempDir.createDirectory();
ti::File* jsFile = new ti::File(tempDir.path());
result->SetObject(jsFile);
}
catch (Poco::Exception& exc)
{
throw ValueException::FromString(exc.displayText());
}
}
static std::string& BlankURLToFilePath()
{
static std::string path;
if (path.empty())
{
Poco::TemporaryFile temp;
temp.keepUntilExit();
path = temp.path();
std::string contents("<html><body></body></html>");
Poco::FileStream stream;
stream.open(path, std::ios::out);
stream.write(contents.c_str(), contents.size());
stream.close();
}
return path;
}
bool File::load(string path) {
//load the blend file into the stream
if(file.is_open())
file.close();
file.open(ofToDataPath(path, true).c_str(), ios::binary);
//info should contain blender now, if not it is compressed
string info = readString(7);
//check if the file is gzipped
if(info != "BLENDER") {
seek(0);
//unzip the blend file to a temp file and reload
Poco::InflatingInputStream inflater(file, Poco::InflatingStreamBuf::STREAM_GZIP);
Poco::TemporaryFile tempFile;
tempFile.keepUntilExit();
std::ofstream out(tempFile.path().c_str(), ios::binary);
Poco::StreamCopier::copyStream( inflater, out);
out.close();
file.close();
file.open(tempFile.path().c_str(), ios::binary);
info = readString(7);
if(info != "BLENDER") {
ofLogWarning(OFX_BLENDER) << "Could not read blend file " << path;
} else {
ofLogVerbose(OFX_BLENDER) << "Blend file is gzipped, temporarily decompressed contents to " << tempFile.path();
}
}
//now extract the rest of the header data
string tempString = readString(1);
if(tempString == "-")
pointerSize = 8;
else if(tempString == "_")
pointerSize = 4;
//ofLogVerbose(OFX_BLENDER) << "Pointer Size is " << pointerSize;
if(pointerSize == 4) {
readPointer = std::bind(&File::read<unsigned int>, this);
} else {
readPointer = std::bind(&File::read<unsigned long>, this);
}
bool littleEndianness;
char structPre = ' ';
tempString = readString(1);
if(tempString == "v") {
littleEndianness = true;
structPre = '<';
} else if(tempString == "V") {
littleEndianness = false;
structPre = '>';
}
//ofLogVerbose(OFX_BLENDER) << "Struct pre is " << structPre;
//ofLogVerbose(OFX_BLENDER) << "Little Endianness is " << littleEndianness;
//version
version = readString(3);
//now go through all them blocks
blocks.push_back(Block(this));
//read the first block
readHeader(blocks.back());
while(blocks.back().code != "DNA1" && blocks.back().code != "SDNA") {
//skip the block data
file.seekg(file.tellg() + streamoff(blocks.back().size));
//read a new block
blocks.push_back(Block(this));
readHeader(blocks.back());
}
//advance
readString(4);
readString(4);
//NAMES
unsigned int numNames = read<unsigned int>();
for(unsigned int i=0; i<numNames; i++) {
catalog.names.push_back(DNAName(readString(0)));
}
align(file);
//TYPES
readString(4);
unsigned int numTypes = read<unsigned int>();
//cout << "FOUND TYPES " << numTypes << endl;
for(unsigned int i=0; i<numTypes; i++) {
catalog.types.push_back(DNAType(readString(0), i));
}
align(file);
//TYPE LENGTHS
readString(4);;
for(unsigned int i=0; i<numTypes; i++) {
catalog.types[i].size = read<unsigned short>();
if(catalog.types[i].size == 0) //assume it is a pointer
catalog.types[i].size = pointerSize;
}
align(file);
//STRUCTURES
readString(4);
unsigned int numStructs = read<unsigned int>();
//cout << "FOUND STRUCTURES " << numStructs << endl;
for(unsigned int i=0; i<numStructs; i++) {
//get the type
unsigned int index = read<unsigned short>();
DNAType* type = &catalog.types[index];
catalog.structures.push_back(DNAStructure(type));
DNAStructure& structure = catalog.structures.back();
//get the fields for the structure
unsigned short numFields = read<unsigned short>();
unsigned int curOffset = 0;
for(unsigned int j=0; j<numFields; j++) {
unsigned short typeIndex = read<unsigned short>();
unsigned short nameIndex = read<unsigned short>();
DNAType* type = &catalog.types[typeIndex];
DNAName* name = &catalog.names[nameIndex];
structure.fields.push_back(DNAField(type, name, curOffset));
//if the field is a pointer, then only add the pointer size to offset
bool offsetSet = false;
if(structure.fields.back().isPointer) {
int amount = 0;
if(structure.fields.back().isArray) {
amount = structure.fields.back().arraySizes[0];
}
if(amount == 0)
amount = 1;
curOffset += (pointerSize * amount);
offsetSet = true;
} else if(structure.fields.back().isArray) { //arrays add n times the size to offset
float multi = 0;
for(int s: structure.fields.back().arraySizes) {
if(s!=-1) {
if(multi == 0)
multi += s;
else
multi *= s;
}
}
if(multi != 0)
offsetSet = true;
curOffset += type->size * multi;
}
if(!offsetSet) {
curOffset += type->size;
}
}
}
align(file);
//now link all structures with the File Blocks
vector<Block>::iterator it = blocks.begin();
while(it != blocks.end()) {
(*it).structure = &catalog.structures[(*it).SDNAIndex];
it++;
}
ofLogVerbose(OFX_BLENDER) << "Loaded \"" << path << "\" - Blender version is " << version;
return true;
}