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php-mpq/src/Stream/Parser/BinaryStreamParser.php

76 lines
2.2 KiB
PHP

<?php
/**
* Copyright (c) 2016, Rogiel Sulzbach
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace Rogiel\MPQ\Stream\Parser;
use Rogiel\MPQ\Stream\Stream;
class BinaryStreamParser {
private $stream;
/**
* BinaryStreamParser constructor.
* @param Stream $stream
*/
public function __construct(Stream $stream) {
$this->stream = $stream;
}
public function seek($position) {
$this->stream->seek($position);
}
public function skip($bytes) {
$this->stream->skip($bytes);
}
// read little endian 32-bit integer
public function readUInt32() {
$t = unpack("V", $this->stream->readBytes(4));
return $t[1];
}
public function readUInt16() {
$t = unpack("v", $this->stream->readBytes(2));
return $t[1];
}
public function readByte() {
$t = unpack("C", $this->stream->readBytes(1));
return $t[1];
}
public function readBytes($size) {
return $this->stream->readBytes($size);
}
public function eof() {
return $this->stream->eof();
}
}