/**
* Reads the headers of a region file: chunk offsets/timestamps
*/
bool RegionFile::readHeaders(std::ifstream& file) {
if (!file)
return false;
containing_chunks.clear();
for (int i = 0; i < 1024; i++) {
chunk_offsets[i] = 0;
chunk_timestamps[i] = 0;
}
file.seekg(0, std::ios::end);
int filesize = file.tellg();
file.seekg(0, std::ios::beg);
// make sure the region file has a header
if (filesize < 8192) {
return false;
}
for (int x = 0; x < 32; x++) {
for (int z = 0; z < 32; z++) {
file.seekg(4 * (x + z * 32), std::ios::beg);
int tmp;
file.read(reinterpret_cast<char*>(&tmp), 4);
if (tmp == 0)
continue;
int offset = util::bigEndian32(tmp << 8) * 4096;
//uint8_t sectors = ((uint8_t*) &tmp)[3];
file.seekg(4096, std::ios::cur);
int timestamp;
file.read(reinterpret_cast<char*>(×tamp), 4);
timestamp = util::bigEndian32(timestamp);
ChunkPos pos(x + regionpos.x * 32, z + regionpos.z * 32);
if (rotation)
pos.rotate(rotation);
containing_chunks.insert(pos);
chunk_offsets[z * 32 + x] = offset;
chunk_timestamps[z * 32 + x] = timestamp;
}
}
return true;
}
void Mz::decodeSubMesh( std::ifstream& f, int s )
{
if (mVersion >= 20)
{
mSubmeshes.resize(s / sizeof(sSubMesh), sSubMeshWithName());
size_t i = 0;
while (s > 0)
{
f.read((char*)&mSubmeshes[i], sizeof(sSubMesh));
f.read(mSubmeshes[i].name, mSubmeshes[i].nameLen);
s -= (sizeof(sSubMesh) + mSubmeshes[i].nameLen);
++i;
}
mSubmeshes.resize(i);
}
else
{
mSubmeshes.resize(s / sizeof(sSubMeshWithName_V3), sSubMeshWithName());
size_t i = 0;
sSubMeshWithName_V3 v3;
while (s > 0)
{
f.read((char*)&v3, sizeof(sSubMeshWithName_V3));
memcpy(&mSubmeshes[i], &v3, sizeof(sSubMesh) - sizeof(u8));
mSubmeshes[i].nameLen = strlen(v3.name);
memcpy(mSubmeshes[i].name, v3.name, sizeof(mSubmeshes[i].name));
s -= sizeof(sSubMeshWithName_V3);
++i;
}
}
for(int i = 0; i != mSubmeshes.size(); ++i)
{
sSubMeshWithName& s = mSubmeshes[i];
for(int k = 0; k != 128; ++k)
{
if(s.name[k] == '|' || s.name[k] == ' ')
{
s.name[k] = '_';
}
}
}
}
void
Producer::populateSegments(std::ifstream& ifs)
{
BOOST_ASSERT(m_segments.size() == 0);
// calculate how many segments are needed
std::streampos begin, end;
begin = ifs.tellg();
ifs.seekg(0, std::ios::end);
end = ifs.tellg();
int num_segments = (end-begin) / m_maxSegmentSize;
if ((end-begin) % m_maxSegmentSize != 0)
num_segments++;
std::cout << "Size of the file: " << (end-begin) << " bytes." << std::endl;
std::cout << "Maximum size of a segment: " << m_maxSegmentSize << " bytes." << std::endl;
std::cout << "Number of segments: " << num_segments << std::endl;
std::vector<uint8_t> buffer(m_maxSegmentSize);
ifs.seekg(0, std::ios::beg);
for (int i = 0; i < (end-begin) / m_maxSegmentSize; ++i) {
ifs.read(reinterpret_cast<char*>(buffer.data()), m_maxSegmentSize);
auto data = make_shared<Data>(Name(m_prefix).appendSegment(i));
data->setFreshnessPeriod(m_freshnessPeriod);
data->setContent(&buffer[0], m_maxSegmentSize);
//std::cout << *data << std::endl;
m_segments.push_back(data);
}
if ((end-begin) % m_maxSegmentSize != 0) {
ifs.read(reinterpret_cast<char*>(buffer.data()), (end-begin) % m_maxSegmentSize);
auto data = make_shared<Data>(Name(m_prefix).appendSegment(m_segments.size()));
data->setFreshnessPeriod(m_freshnessPeriod);
data->setContent(&buffer[0], (end-begin) % m_maxSegmentSize);
//std::cout << *data << std::endl;
m_segments.push_back(data);
}
auto finalBlockId = name::Component::fromSegment(m_segments.size() - 1);
for (const auto& data : m_segments) {
data->setFinalBlockId(finalBlockId);
m_keyChain.sign(*data, m_signingInfo);
}
}
/*
* Read a string from the file stream.
*/
std::string FileInput::ReadString8(std::ifstream &instr, int32_t len)
{
char *buf = new char [len+1];
instr.read(buf, len);
buf[len]=0;
std::string s=buf;
delete[] buf;
return s;
}
/**@brief read one char from file handle
*
* @return read a char read from file_
*/
inline const unsigned char nextChar()
{
char out;
if (file_.read(&out, 1)) {
return out;
} else {
throw Exception(__PRETTY_FUNCTION__, "Error reading file.");
}
}
static void loadVec3Array(std::ifstream& fin, std::vector<ml::vec3f>& array) {
int array_size;
fin.read((char*)(&array_size), sizeof(int));
array.resize(array_size);
for (int i = 0; i < array_size; ++i) {
loadVec3(fin, array[i]);
}
return;
}
// Helper function to read a null terminated c-str from an ifstream.
std::string readNullTermString(std::ifstream & fileHandle) {
std::string value;
while (true) {
char c;
fileHandle.read(&c, sizeof(char));
if (c != '\0') { value.push_back(c); }
else { return value; }
}
}
CartridgeHeader RomParser::parse(std::ifstream& rom)
{
CartridgeHeader header;
rom.seekg(0x100, std::ios::beg);
rom.read((char*)&header, sizeof(CartridgeHeader));
return header;
}
ByteString read_bytes_from_stream(std::ifstream& stream, size_t size)
{
char* cbuff = new char[size];
stream.read(cbuff, size);
ByteString bytes(reinterpret_cast<uint8_t*>(cbuff), size);
delete[] cbuff;
return bytes;
}
unsigned char iReadByte (std::ifstream & ifile)
{
// will read 1 byte from the file
char b;
ifile.read(&b, 1);
return b;
}
BitVector::BitVector(std::ifstream& file) :
rank_index(0), select_index(0)
{
file.read((char*)&(this->size), sizeof(this->size));
file.read((char*)&(this->items), sizeof(this->items));
file.read((char*)&(this->number_of_blocks), sizeof(this->number_of_blocks));
file.read((char*)&(this->block_size), sizeof(this->block_size));
usint* array_buffer = new usint[this->block_size * this->number_of_blocks];
file.read((char*)(array_buffer), this->block_size * this->number_of_blocks * sizeof(usint));
this->array = array_buffer;
this->integer_bits = length(this->size);
this->samples = new ReadBuffer(file, 2 * (this->number_of_blocks + 1), this->integer_bits);
this->indexForRank();
this->indexForSelect();
}
binary_reader::market_message::market_message( std::ifstream& _in )
: m_type(readValue<boost::uint32_t>(_in))
, m_time(readValue<boost::uint32_t>(_in))
, m_len(readValue<boost::uint32_t>(_in))
{
m_msg = new char[m_len + 1];
_in.read(&m_msg[0], m_len);
m_msg[m_len] = '\0';
}
bool VCFont::ParseCommon(std::ifstream& f)
{
char blockType = ReadInt8(f);
int blockSize = ReadInt32(f);
f.read((char*) &Common, 15);
return true;
}
/*---------------------------------------------------------*/
bool NOMAD::Cache_File_Point::read ( std::ifstream & fin )
{
reset();
// 1. _eval_status:
fin.read ( (char *) &_eval_status , sizeof(_eval_status) );
if ( fin.fail() || _eval_status > 3 )
return false;
// 2. _n:
fin.read ( (char *) &_n , sizeof(_n) );
if ( fin.fail() || _n <= 0 ) {
_n = 0;
return false;
}
// 3. _m:
fin.read ( (char *) &_m , sizeof(_m) );
if ( fin.fail() || _m < 0 ) {
_n = _m = 0;
return false;
}
// 4. _m_def:
fin.read ( (char *) &_m_def , sizeof(_m_def) );
if ( fin.fail() || _m_def < 0 ) {
_m_def = _n = _m = 0;
return false;
}
// 5. _coords:
_coords = new double [_n];
fin.read ( (char *) _coords , _n*sizeof(double) );
if ( fin.fail() ) {
reset();
return false;
}
if ( _m_def > 0 ) {
// 6. _bb_def:
_bbo_def = new double [_m_def];
fin.read ( (char *) _bbo_def , _m_def*sizeof(double) );
if ( fin.fail() ) {
reset();
return false;
}
// 7. _bbo_index:
_bbo_index = new int [_m_def];
fin.read ( (char *) _bbo_index , _m_def*sizeof(int) );
if ( fin.fail() ) {
reset();
return false;
}
}
return true;
}
bool WLMatLib::MATReader::readMatrixDouble( Eigen::MatrixXd* const matrix, const ElementInfo_t& element, std::ifstream& ifs,
const FileInfo_t& info )
{
// Check some errors //
// ----------------- //
if( matrix == NULL )
{
wlog::error( LIBNAME ) << "Matrix object is null!";
return false;
}
if( info.fileSize <= static_cast< size_t >( element.posData ) )
{
wlog::error( LIBNAME ) << "Data position is beyond file end!";
return false;
}
if( element.dataType != DataTypes::miMATRIX )
{
wlog::error( LIBNAME ) << "Data type is not a matrix: " << element.dataType;
return false;
}
const mArrayType_t arrayType = ArrayFlags::getArrayType( element.arrayFlags );
if( arrayType != ArrayTypes::mxDOUBLE_CLASS )
{
wlog::error( LIBNAME ) << "Numeric Types does not match!";
return false;
}
const std::streampos pos = ifs.tellg();
// Read data //
// --------- //
ifs.seekg( element.posData );
mDataType_t type;
mNumBytes_t bytes;
if( !readTagField( &type, &bytes, ifs ) )
{
wlog::error( LIBNAME ) << "Could not read Data Element!";
ifs.seekg( pos );
return false;
}
if( type != DataTypes::miDOUBLE )
{
wlog::error( LIBNAME ) << "Numeric Types does not match or compressed data, which is not supported: " << type;
ifs.seekg( pos );
return false;
}
matrix->resize( element.rows, element.cols );
ifs.read( ( char* )matrix->data(), bytes );
nextElement( ifs, element.posData, bytes );
return true;
}
bool Archiver::readFooter(std::ifstream &tar) {
String footer(12, '\0');
const char FOOTER[] = "END ARCHIVE\0";
if (tar.read(&footer[0], footer.length())) {
for (unsigned char i = 0; i < footer.length(); i++)
if (footer[i] != FOOTER[i]) return false;
return true;
}
return false;
}
bool Archiver::readHeader(std::ifstream &tar) {
String header(8, '\0');
const char HEADER[] = "ARCHIVE\0";
if (tar.read(&header[0], header.length())) {
for (unsigned char i = 0; i < header.length(); i++)
if (header[i] != HEADER[i]) return false;
return true;
}
return false;
}
/*
** Unserialize std::string
*/
inline void unserialize(std::ifstream &file, std::string & a)
{
int strSize;
unserialize(file, strSize);
char *str = new char[strSize + 1]();
file.read(str, strSize);
str[strSize] = '\0';
a.assign(str);
delete[] str;
}
/**
Loads and checks both bitmap file and info headers.
@param[in] FileStream The input file stream.
@param[out] FileHeader The bitmap file header read from the file.
@param[out] InfoHeader The bitmap info header read from the file.
@return One of #BitmapLoadStatus codes.
*/
static BitmapLoadStatus LoadAndValidateHeaders(std::ifstream& FileStream, BitmapFileHeader* FileHeader,
BitmapInfoHeader* InfoHeader)
{
FileStream.read(reinterpret_cast<char*>(FileHeader), sizeof(*FileHeader));
if (FileStream.bad()) {
return INVALID_FILE_HEADER;
}
if (!ValidateFileHeader(*FileHeader)) {
return INVALID_FILE_HEADER;
}
FileStream.read(reinterpret_cast<char*>(InfoHeader), sizeof(*InfoHeader));
if (FileStream.bad() || !ValidateInfoHeader(*InfoHeader)) {
return INVALID_INFO_HEADER;
}
return LOAD_SUCCESS;
}
int iReadInt(std::ifstream & ifile)
{
// will use 4 bytes from the file to read an int (according to the MSG definition of int)
unsigned char buf [4];
ifile.read((char*)buf, 4);
int iResult = (buf[0]<<24)+(buf[1]<<16)+(buf[2]<<8)+buf[3];
return iResult;
}
tile::tile(std::ifstream& file) : contours()
{
int contourCount = 0;
file.read((char*)&contourCount, 4);
for(int i = 0; i < contourCount; i++)
{
contour c(file);
contours.push_back(c);
}
}
std::unique_ptr<TorchStage> ParallelTable::loadFromFile(std::ifstream& file) {
int n_nodes;
file.read(reinterpret_cast<char*>(&n_nodes), sizeof(n_nodes));
std::unique_ptr<ParallelTable> ret(new ParallelTable());
ret->network_.reserve(n_nodes);
for (int32_t i = 0; i < n_nodes; i++) {
ret->network_.push_back(TorchStage::loadFromFile(file));
}
return std::unique_ptr<TorchStage>(std::move(ret));
}
void STLFile::read_binary( std::ifstream &ifstr )
{
// Skip header
char buf[80];
ifstr.read( buf, 80 );
// Read number of triangles
uint32_t tcount;
ifstr.read( (char *)(&tcount), 4 );
// Check if sensible
if( tcount > 10000000 )
throw( ErrorUnimplemented( ERROR_LOCATION, "Too high number of triangles" ) );
_tri.reserve( tcount );
// Read triangles
for( uint32_t a = 0; a < tcount; a++ )
_tri.push_back( Triangle( ifstr ) );
}
static bool readIStat( std::ifstream &in, int sflg, char *flag )
{
if ( sflg == CF_FLAG_SIZE )
{
in.read( flag, sflg );
if ( !in )
return true; // error
}
else
{
int istat;
in.read( reinterpret_cast< char * >( &istat ), sflg );
if ( !in )
return true; // error
else
*flag = ( istat == 1 );
}
return false;
}
void ReadSharedArray(std::ifstream &saIn) {
std::cout << "reading a shared suffix array index." << std::endl;
saIn.read((char*) &this->length, sizeof(int));
indexHandle = "suffixarray.index." + shmIdTag;
AllocateMappedShare(indexHandle, this->length + 1, indexShared, indexID);
std::cout << "the shared index is: " << indexShared << std::endl;
this->index = indexShared;
std::cout << "the index used is: " << this->index << std::endl;
this->ReadAllocatedArray(saIn);
}
inline void load(std::ifstream& ifs, MatD& params){
Real val = 0.0;
for (int i = 0; i < params.cols(); ++i){
for (int j = 0; j < params.rows(); ++j){
ifs.read((char*)&val, sizeof(Real));
params.coeffRef(j, i) = val;
}
}
}
std::string CMuleCollection::ReadString(std::ifstream& infile, int TagType = 0x02)
{
if (TagType >= 0x11 && TagType <= 0x20) {
std::vector<char> buffer(TagType - 0x10);
infile.read(&buffer[0], TagType - 0x10);
return buffer.empty() ?
std::string() :
std::string (buffer.begin(), buffer.end());
}
if (TagType == 0x02) {
uint16_t TagStringSize = ReadInt<uint16_t>(infile);
std::vector<char> buffer (TagStringSize);
infile.read(&buffer[0], TagStringSize);
return buffer.empty() ?
std::string() :
std::string (buffer.begin(), buffer.end());
}
return std::string();
}
bool LightRecord::loadFromStream(std::ifstream& inStream)
{
if (!inStream.good())
{
DuskLog() << "LightRecord::loadFromStream: ERROR: stream contains errors.\n";
return false;
}
char ID_Buffer[256];
uint32_t Header = 0;
inStream.read((char*) &Header, sizeof(uint32_t));
if (Header != cHeaderLight)
{
DuskLog() << "LightRecord::loadFromStream: ERROR: invalid record header.\n";
return false;
}
//read ID length
Header = 0;
inStream.read((char*) &Header, sizeof(uint32_t));
if (Header>255)
{
DuskLog() << "LightRecord::loadFromStream: ERROR: ID is longer than 255"
<< "characters.\n";
return false;
}
//read ID
memset(ID_Buffer, 0, Header+1);
inStream.read(ID_Buffer, Header);
if (!inStream.good())
{
DuskLog() << "LightRecord::loadFromStream: ERROR while reading light's"
<< " ID from stream.\n";
return false;
}
ID_Buffer[Header] = '\0'; //make sure it's NUL-terminated
ID = std::string(ID_Buffer);
//read RGB and radius
inStream.read((char*) &red, sizeof(float));
inStream.read((char*) &green, sizeof(float));
inStream.read((char*) &blue, sizeof(float));
inStream.read((char*) &radius, sizeof(float));
//read light type
inStream.read((char*) &type, sizeof(Ogre::Light::LightTypes));
if (!inStream.good())
{
DuskLog() << "LightRecord::loadFromStream: ERROR while reading light's"
<< " colour values from stream.\n";
return false;
}
//normalise values, just to be safe
normalise();
return true;
}
// biSize以外を読み込む．biSizeはヘッダ識別のために既に読み込んでいるはずだから飛ばす．
int LoadInfoHeader( std::ifstream& ifs, BITMAPINFOHEADER& header ) {
ifs.read( reinterpret_cast< char* >( &header.biWidth ), 4 );
ifs.read( reinterpret_cast< char* >( &header.biHeight ), 4 );
ifs.read( reinterpret_cast< char* >( &header.biPlanes ), 2 );
ifs.read( reinterpret_cast< char* >( &header.biBitCount ), 2 );
ifs.read( reinterpret_cast< char* >( &header.biCompression ), 4 );
ifs.read( reinterpret_cast< char* >( &header.biSizeImage ), 4 );
ifs.read( reinterpret_cast< char* >( &header.biXPelsPerMeter ), 4 );
ifs.read( reinterpret_cast< char* >( &header.biYPelsPerMeter ), 4 );
ifs.read( reinterpret_cast< char* >( &header.biClrUsed ), 4 );
ifs.read( reinterpret_cast< char* >( &header.biClrImportant ), 4 );
return ifs.fail();
}
/*!
\param[in] ifs input file stream
\param[out] in_mat mat to load
*/
bool readMatBinary(std::ifstream& ifs, cv::Mat& in_mat)
{
if(!ifs.is_open()){
return false;
}
int rows, cols, type;
ifs.read((char*)(&rows), sizeof(int));
if(rows==0){
return true;
}
ifs.read((char*)(&cols), sizeof(int));
ifs.read((char*)(&type), sizeof(int));
in_mat.release();
in_mat.create(rows, cols, type);
ifs.read((char*)(in_mat.data), in_mat.elemSize() * in_mat.total());
return true;
}
