Current File : /home/lightco1/www/plugins/content/sigplus/core/librarian.php
<?php
/**
* @file
* @brief sigplus Image Gallery Plus library dependencies
* @author Levente Hunyadi
* @version 1.5.0
* @remarks Copyright (C) 2009-2017 Levente Hunyadi
* @remarks Licensed under GNU/GPLv3, see http://www.gnu.org/licenses/gpl-3.0.html
* @see http://hunyadi.info.hu/sigplus
*/
/*
* sigplus Image Gallery Plus plug-in for Joomla
* Copyright 2009-2017 Levente Hunyadi
*
* sigplus is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* sigplus is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );
/**
* Whether server has GD library enabled with JPEG, PNG and GIF read support.
*/
function is_gd_supported() {
static $supported = null;
if (isset($supported)) {
return $supported;
}
$supported = extension_loaded('gd');
if (!$supported) {
return false;
}
$supported = function_exists('gd_info'); // might fail in rare cases even if GD is available
if (!$supported) {
return false;
}
$gd = gd_info();
$supported = isset($gd['GIF Read Support']) && $gd['GIF Read Support']
&& isset($gd['GIF Create Support']) && $gd['GIF Create Support']
&& (isset($gd['JPG Support']) && $gd['JPG Support'] || isset($gd['JPEG Support']) && $gd['JPEG Support'])
&& isset($gd['PNG Support']) && $gd['PNG Support'];
return $supported;
}
/**
* Whether server has ImageMagick library support enabled.
*/
function is_imagick_supported() {
static $supported = null;
if (isset($supported)) {
return $supported;
}
$supported = extension_loaded('imagick');
if (!$supported) {
return false;
}
$supported = class_exists('Imagick');
if (!$supported) {
return false;
}
// see: https://www.imagemagick.org/script/formats.php
$formats = Imagick::queryformats();
$supported = in_array('GIF', $formats, true) && in_array('JPEG', $formats, true) && in_array('PNG', $formats, true);
return $supported;
}
/**
* Whether server has GraphicsMagick library support enabled.
*/
function is_gmagick_supported() {
static $supported = null;
if (isset($supported)) {
return $supported;
}
$supported = extension_loaded('gmagick');
if (!$supported) {
return false;
}
$supported = class_exists('Gmagick');
if (!$supported) {
return false;
}
$image = new Gmagick();
$formats = $image->queryformats();
$supported = in_array('GIF', $formats, true) && in_array('JPEG', $formats, true) && in_array('PNG', $formats, true);
return $supported;
}
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