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Direktori : /home2/selectio/public_html/myclassicfit.com/vendor/mpdf/mpdf/src/Gif/ |
Current File : /home2/selectio/public_html/myclassicfit.com/vendor/mpdf/mpdf/src/Gif/ImageHeader.php |
<?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 ImageHeader { var $m_nLeft; var $m_nTop; var $m_nWidth; var $m_nHeight; var $m_bLocalClr; var $m_bInterlace; var $m_bSorted; var $m_nTableSize; /** * @var \Mpdf\Gif\ColorTable */ var $m_colorTable; public function __construct() { unset($this->m_nLeft); unset($this->m_nTop); unset($this->m_nWidth); unset($this->m_nHeight); unset($this->m_bLocalClr); unset($this->m_bInterlace); unset($this->m_bSorted); unset($this->m_nTableSize); unset($this->m_colorTable); } function load($lpData, &$hdrLen) { $hdrLen = 0; $this->m_nLeft = $this->w2i(substr($lpData, 0, 2)); $this->m_nTop = $this->w2i(substr($lpData, 2, 2)); $this->m_nWidth = $this->w2i(substr($lpData, 4, 2)); $this->m_nHeight = $this->w2i(substr($lpData, 6, 2)); if (!$this->m_nWidth || !$this->m_nHeight) { return false; } $b = ord($lpData[8]); $this->m_bLocalClr = ($b & 0x80) ? true : false; $this->m_bInterlace = ($b & 0x40) ? true : false; $this->m_bSorted = ($b & 0x20) ? true : false; $this->m_nTableSize = 2 << ($b & 0x07); $hdrLen = 9; if ($this->m_bLocalClr) { $this->m_colorTable = new ColorTable(); if (!$this->m_colorTable->load(substr($lpData, $hdrLen), $this->m_nTableSize)) { return false; } $hdrLen += 3 * $this->m_nTableSize; } return true; } function w2i($str) { return ord(substr($str, 0, 1)) + (ord(substr($str, 1, 1)) << 8); } }