/**
* Initializes the instance.
*
* @param Reader $reader The reader that provides the data.
*
* @throws UnexpectedHeaderException Throws an UnexpectedHeaderException if the header signature is not valid.
* @throws Exception Throws an Exception in case of errors.
*/
public function __construct(Reader $reader)
{
parent::__construct($reader);
if ($this->headerSignature !== 'PMGI') {
throw UnexpectedHeaderException::create('PMGI', $this->headerSignature);
}
$this->freeSpace = $reader->readUInt32();
}
/**
* Initializes the instance.
*
* @param Reader $reader The reader that provides the data.
*
* @throws UnexpectedHeaderException Throws an UnexpectedHeaderException if the header signature is not valid.
* @throws Exception Throws an Exception in case of errors.
*/
public function __construct(Reader $reader)
{
parent::__construct($reader);
if ($this->headerSignature !== 'PMGL') {
throw UnexpectedHeaderException::create('PMGL', $this->headerSignature);
}
$this->freeSpace = $reader->readUInt32();
/* Unknown (0) */
$reader->readUInt32();
$this->previousChunk = $reader->readInt32();
$this->nextChunk = $reader->readInt32();
}
/**
* Initializes the instance.
*
* @param Reader $reader The reader that provides the data.
*
* @throws UnexpectedHeaderException Throws an UnexpectedHeaderException if the header signature is not valid.
* @throws Exception Throws an Exception in case of errors.
*/
public function __construct(Reader $reader)
{
$size = $reader->readUInt32();
if ($size < 6) {
throw new Exception('The LZXC entry is too small');
}
parent::__construct($reader);
if ($this->headerSignature !== 'LZXC') {
throw UnexpectedHeaderException::create('LZXC', $this->headerSignature);
}
$this->version = $reader->readUInt32();
if ($this->version !== 2) {
throw new Exception("Unsupported LZXC header version: {$this->version}");
}
$this->resetInterval = $reader->readUInt32();
$this->windowSize = $reader->readUInt32();
$this->cacheSize = $reader->readUInt32();
}
/**
* Initializes the instance.
*
* @param Reader $reader The reader that provides the data.
*
* @throws \Exception Throws an Exception in case of errors.
*/
public function __construct(Reader $reader)
{
parent::__construct($reader);
$this->headerVersion = $reader->readUInt32();
$this->headerLength = $reader->readUInt32();
}