mirror of
https://github.com/Rogiel/php-mpq
synced 2025-12-06 08:23:05 +00:00
58 lines
2.0 KiB
PHP
58 lines
2.0 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\Compression;
|
|
|
|
|
|
use Rogiel\MPQ\Exception\Compression\InvalidInputDataException;
|
|
|
|
class DeflateCompression implements Compression {
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function compress($data, $length) {
|
|
$output = @gzdeflate(substr($data, 0, $length));
|
|
if(!is_string($output)) {
|
|
throw new InvalidInputDataException('The compression input data is invalid.', $output);
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function decompress($data, $length) {
|
|
$output = @gzinflate(substr($data, 0, $length), $length);
|
|
if($output === false) {
|
|
throw new InvalidInputDataException('The decompression input data is invalid.', $output);
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
} |