Weblabor

<?PHP
// vim: set expandtab tabstop=4 shiftwidth=4:
// +----------------------------------------------------------------------+
// | SAPID: XML Sapiens Engine Demonstrator                               |
// +----------------------------------------------------------------------+
// | Author:  Max Baryshnikov aka Mephius <mb##kukac##rg.by>                      |
// | Copyright (c) 2004 Max Baryshnikov                                   |
// | http://sapid.sourceforge.net                                             |
// +----------------------------------------------------------------------+
// | This source file is free software; you can redistribute it and/or    |
// | modify it under the terms of the GNU Lesser General Public           |
// | License as published by the Free Software Foundation; either         |
// | version 2.1 of the License, or (at your option) any later version.   |
// |                                                                      |
// | This source file 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    |
// | Lesser General Public License for more details.                      |
// +----------------------------------------------------------------------+
// Release: 13.11.04 (dd/mm/yy)
// $Id: image_resize.inc.php,v 1.4 2006/03/11 17:54:13 sapidaddons Exp $

function _sysB_chkgd2()
{
    $rep=false;
    if(isset($GLOBALS["gBGDVersion"])) {
        $rep=$GLOBALS["gBGDVersion"];
    } else {
        //Edited by Zik
        $arr=get_loaded_extensions();
        if(in_array("gd", $arr) and function_exists(imagecreatetruecolor))
        $GLOBALS["gBGDVersion"]=$rep="2.0";
        elseif (in_array("gd", $arr) and !function_exists(imagecreatetruecolor))
        $GLOBALS["gBGDVersion"]=$rep="1.6";
    }
    return $GLOBALS["gBGDVersion"];
}


function create_tnail($file, $w, $h, $path_prefix, $name_prefix, $unlink=false){

   

    $GLOBALS["gBGDVersion"]=_sysB_chkgd2();
    if(intval($GLOBALS["gBGDVersion"])>=2){
        $resample_function="imagecopyresampled";
        $create_function="imageCreateTrueColor";
    }else{
        $resample_function="imagecopyresized";
        $create_function="imageCreate";
    }

    $info = $imageInfo = getimagesize($file["tmp_name"]);

    $MB = 1048576;  // number of bytes in 1M
    $K64 = 65536;    // number of bytes in 64K
    $TWEAKFACTOR = 3;  // Or whatever works for you
    $memoryNeeded = round( ( $imageInfo[0] * $imageInfo[1]
    * $imageInfo['bits']
    * $imageInfo['channels'] / 8
    + $K64
    ) * $TWEAKFACTOR
    );

    //ini_get('memory_limit') only works if compiled with "--enable-memory-limit" also
    //Default memory limit is 8MB so well stick with that.
    //To find out what yours is, view your php.ini file.
    $memoryLimitMB = 8;
    $memoryLimit = $memoryLimitMB * $MB;
    if (function_exists('memory_get_usage') && memory_get_usage() + $memoryNeeded > $memoryLimit)
    {
        $newLimit = $memoryLimitMB + ceil( ( memory_get_usage()
        + $memoryNeeded
        - $memoryLimit
        ) / $MB
        );

        ini_set( 'memory_limit', $newLimit . 'M' );
        
    }

    switch ($info[2]) {
        case 1:
            $img=imagecreatefromgif($file["tmp_name"]);
            break;
        case 2:
            $img=imagecreatefromjpeg($file["tmp_name"]);
            break;
        case 3:
            $img=imagecreatefrompng($file["tmp_name"]);
            break;
    }

    if(($info[0]/$info[1])<=($w/$h)){
        $new_w=$w;
        $new_h=(int)(($w/$info[0])*$info[1]);
        if( !@($tmp_im=$create_function($new_w, $new_h)) ) return false;
        $resample_function($tmp_im, $img, 0, 0, 0, 0, $new_w, $new_h, $info[0], $info[1]);
        
        imagedestroy($img);
        $im=($create_function($w, $h));
        $offset=(int)(($new_h-$h)/2);
        imagecopy($im, $tmp_im, 0,0,0,$offset,$w, $h);

        $filename=$path_prefix . $name_prefix . $file["name"];
        touch($filename);
        imagejpeg($im, $filename, 75);

        imagedestroy($im);
        imagedestroy($tmp_im);

        if ($unlink) @unlink($file["tmp_name"]);
    }elseif (($info[0]/$info[1])>($w/$h)){
        $new_h=$h;
        $new_w=(int)(($h/$info[1])*$info[0]);
        if( !@($tmp_im=$create_function($new_w, $new_h)) ) return false;
        $resample_function($tmp_im, $img, 0, 0, 0, 0, $new_w, $new_h, $info[0], $info[1]);

        imagedestroy($img);
        $im=$create_function($w, $h);
        $offset=(int)(($new_w-$w)/2);
        imagecopy($im, $tmp_im, 0,0,$offset,0,$w, $h);

        $filename=$path_prefix . $name_prefix . $file["name"];
        touch($filename);
        imagejpeg($im, $filename, 75);

        imagedestroy($im);
        imagedestroy($tmp_im);

        if ($unlink) @unlink($file["tmp_name"]);
    }
    return array("init_width"=>$info[0], "init_height"=>$info[1]);
}


//create_tnail(array("tmp_name"=>$_SERVER["DOCUMENT_ROOT"] . "/sapid/usr/content/images/1.jpg", "name"=>"1.jpg"), 200, 200, $_SERVER["DOCUMENT_ROOT"] . "/sapid/usr/content/images/", "icon_", false);
?>