Viewing file:  Gif.php (1.25 KB) -rw-r--r--
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<?php
namespace Mpdf\Gif;
/**
* GIF Util - (C) 2003 Yamasoft (S/C)
*
* All Rights Reserved
*
* This file can be freely copied, distributed, modified, updated by anyone under the only
* condition to leave the original address (Yamasoft, http://www.yamasoft.com) and this header.
*
* @link http://www.yamasoft.com
*/
class Gif
{
var $m_gfh;
var $m_lpData;
var $m_img;
var $m_bLoaded;
public function __construct()
{
$this->m_gfh = new FileHeader();
$this->m_img = new Image();
$this->m_lpData = '';
$this->m_bLoaded = false;
}
function ClearData()
{
$this->m_lpData = '';
unset($this->m_img->m_data);
unset($this->m_img->m_lzw->Next);
unset($this->m_img->m_lzw->Vals);
unset($this->m_img->m_lzw->Stack);
unset($this->m_img->m_lzw->Buf);
}
function loadFile(&$data, $iIndex)
{
if ($iIndex < 0) {
return false;
}
$this->m_lpData = $data;
// GET FILE HEADER
$len = 0;
if (!$this->m_gfh->load($this->m_lpData, $len)) {
return false;
}
$this->m_lpData = substr($this->m_lpData, $len);
do {
$imgLen = 0;
if (!$this->m_img->load($this->m_lpData, $imgLen)) {
return false;
}
$this->m_lpData = substr($this->m_lpData, $imgLen);
} while ($iIndex-- > 0);
$this->m_bLoaded = true;
return true;
}
}
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