source: extensions/DynamicResize/resize.php @ 14588

<?php
//bool file_exists ( string $filename )
//take parameters in priority, then, cookie, then ..todo

 $missing_size=false;
 $debug=false;
 if (isset($_GET["picture_url"])) { $picture_url = $_GET["picture_url"];} else { die("pictureUrl parameter missing");} 
 if (isset($_GET["width"])) { $width = $_GET["width"];} else {$width=0;}
 if (isset($_GET["height"])) { $height = $_GET["height"];} else {$height=0;}
 if (isset($_COOKIE["dynamic_width"])) { $dynamic_width=$_COOKIE["dynamic_width"];} 
 if (isset($_COOKIE["dynamic_height"])) { $dynamic_height=$_COOKIE["dynamic_height"];} 
 if (isset($_GET["dyn_width"])) {$dynamic_width=($_GET["dyn_width"]);}
 if (isset($_GET["dyn_height"])) {$dynamic_height=($_GET["dyn_height"]);}
 if (!isset($dynamic_width) && !isset($dynamic_height)) $missing_size=true;
 if (isset($_GET["debug"])) $debug=$_GET["debug"];
 $picture_path='/home/piwigo/webapp/web'.substr($picture_url,1);
 
 if($debug){
        echo "pictureUrl:".$picture_url."<br/>";
        echo "width:".$width."<br/>";
        echo "height:".$height."<br/>";
        echo "dynamic_width:".$dynamic_width."<br/>";
        echo "dynamic_heigth:".$dynamic_height."<br/>"; 
        echo "picturePath:".$picture_path."<br/>";
 
        list($usec, $sec) = explode(' ', microtime());
        $script_start= (float) $sec + (float) $usec;
}
if($missing_size){
        die("pictureUrl parameter missing");
        //@todo: in a next version ,let it go ? (see test below)
}

if (extension_loaded('imagick')) {
        $image = new Imagick($picture_path);
        if(! $missing_size){
                $image->adaptiveResizeImage($dynamic_width,$dynamic_height);
        }
        $image->setCompression(Imagick::COMPRESSION_JPEG);
        $image->setCompressionQuality(80);
        $image->setImageFormat('jpeg'); 
        
        $size = $image->getImageLength(); 
}else{
        //todo echo "Imagick not loaded, please check your server or contact your hosting service"; 
        //try alternate method using GD
}

if(!$debug){
        header('Content-type: image/jpeg');
        //header('Content-Length:'.$image->getImageSize());
        header('Content-Transfer-Encoding :binary');
        echo $image;
}else{
        echo 'imageSize:'.$size.'<br/>';
        echo 'compression;'.$image->getCompression();
        echo 'compressionq:'.$image->getCompressionQuality();
        
        list($usec, $sec) = explode(' ', microtime());
        $script_end = (float) $sec + (float) $usec;
        $elapsed_time = round($script_end - $script_start, 5);
        if($missing_size){
                echo "No resize data. Please check that cookie has been set. Image <strong>NOT</strong> resized, computed in ".$elapsed_time." s<br/>";
        }else{
                echo "Image resized and computed in ".$elapsed_time." s<br/>";
        }
}

?>