template<class T> QVariant readBinaryArray(QDataStream& in, int& position) {
quint32 arrayLength;
quint32 encoding;
quint32 compressedLength;
in >> arrayLength;
in >> encoding;
in >> compressedLength;
position += sizeof(quint32) * 3;
QVector<T> values;
const unsigned int DEFLATE_ENCODING = 1;
if (encoding == DEFLATE_ENCODING) {
// preface encoded data with uncompressed length
QByteArray compressed(sizeof(quint32) + compressedLength, 0);
*((quint32*)compressed.data()) = qToBigEndian<quint32>(arrayLength * sizeof(T));
in.readRawData(compressed.data() + sizeof(quint32), compressedLength);
position += compressedLength;
QByteArray uncompressed = qUncompress(compressed);
QDataStream uncompressedIn(uncompressed);
uncompressedIn.setByteOrder(QDataStream::LittleEndian);
uncompressedIn.setVersion(QDataStream::Qt_4_5); // for single/double precision switch
for (quint32 i = 0; i < arrayLength; i++) {
T value;
uncompressedIn >> value;
values.append(value);
}
} else {
QVariant readBinaryArray(QDataStream& in, int& position) {
quint32 arrayLength;
quint32 encoding;
quint32 compressedLength;
in >> arrayLength;
in >> encoding;
in >> compressedLength;
position += sizeof(quint32) * 3;
QVector<T> values;
if ((int)QSysInfo::ByteOrder == (int)in.byteOrder()) {
values.resize(arrayLength);
QByteArray arrayData;
if (encoding == FBX_PROPERTY_COMPRESSED_FLAG) {
// preface encoded data with uncompressed length
QByteArray compressed(sizeof(quint32) + compressedLength, 0);
*((quint32*)compressed.data()) = qToBigEndian<quint32>(arrayLength * sizeof(T));
in.readRawData(compressed.data() + sizeof(quint32), compressedLength);
position += compressedLength;
arrayData = qUncompress(compressed);
if (arrayData.isEmpty() ||
(unsigned int)arrayData.size() != (sizeof(T) * arrayLength)) { // answers empty byte array if corrupt
throw QString("corrupt fbx file");
}
} else {
arrayData.resize(sizeof(T) * arrayLength);
position += sizeof(T) * arrayLength;
in.readRawData(arrayData.data(), arrayData.size());
}
if (arrayData.size() > 0) {
memcpy(&values[0], arrayData.constData(), arrayData.size());
}
} else {
values.reserve(arrayLength);
if (encoding == FBX_PROPERTY_COMPRESSED_FLAG) {
// preface encoded data with uncompressed length
QByteArray compressed(sizeof(quint32) + compressedLength, 0);
*((quint32*)compressed.data()) = qToBigEndian<quint32>(arrayLength * sizeof(T));
in.readRawData(compressed.data() + sizeof(quint32), compressedLength);
position += compressedLength;
QByteArray uncompressed = qUncompress(compressed);
if (uncompressed.isEmpty()) { // answers empty byte array if corrupt
throw QString("corrupt fbx file");
}
QDataStream uncompressedIn(uncompressed);
uncompressedIn.setByteOrder(QDataStream::LittleEndian);
uncompressedIn.setVersion(QDataStream::Qt_4_5); // for single/double precision switch
for (quint32 i = 0; i < arrayLength; i++) {
T value;
uncompressedIn >> value;
values.append(value);
}
} else {
for (quint32 i = 0; i < arrayLength; i++) {
