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dzo_composer_gd.php
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<?php
//myDeepZoom very nice Composer of the happy ardent OpenSeadragon (DZO) v0.1
//Part of the OpenSeadragon DZI online composer utils.
//Needs imagick.so installed and active in the PHP settings.
//Alfonso Abelenda Escudero, chafalladas.com. (c) 2016 license BSD-type 2.
//In fact is my first PHP script ever, needs a lot of recode and cleansing.
//It lacks functions and a proper structure since I was learning how to use PHP.
//But it does the job for the good local people.
global $debug_info, $log_info, $sessid;
$target_dir = $_POST['upload_dir']; #Using precreated dirs, tiles and info will be created under this dir.
$sessid = $_POST['sessid'];
$debug_info = $_POST['debug_info'];
$log_info = $_POST['log_info'];
$overlap = $_POST['overlap'];
$tilesize = $_POST['tilesize'];
$target_file = $target_dir . "/" . basename($_FILES["file"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
function prof_flag($str)
{
global $prof_timing, $prof_names, $sessid;
$prof_timing[] = microtime(true);
$prof_names[] = $str;
}
function prof_print()
{
global $prof_timing, $prof_names, $sessid;
$size = count($prof_timing);
for($i=0;$i<$size - 1; $i++)
{
FilePrint("log_dzo.txt", "",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . $prof_names[$i] . ": ","a+", true);
FilePrint("log_dzo.txt", "", sprintf("%f\n", $prof_timing[$i+1]-$prof_timing[$i]),"a+", true);
}
}
prof_flag("Error Handling");
function myErrorHandler($errno, $errstr, $errfile, $errline)
{
global $sessid;
//Take care of known warning so they don't get logged
$myWarns = array("Undefined variable: tileSize","File exists");
foreach ($myWarns as $warn){$pos = strpos($errstr, $warn);$warn = $warn + $pos;}
if($warn !== false)
{
return;
}
else
{
switch ($errno)
{
case E_USER_ERROR:
echo "<b>My ERROR</b> [$errno] $errstr<br />\n";
echo " Fatal error on line $errline in file $errfile";
echo ", PHP " . PHP_VERSION . " (" . PHP_OS . ")<br />\n";
echo "Aborting...<br />\n";
FilePrint("log_dzo.txt", "",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "My ERROR</b> [$errno] $errstr at $errline in $errfile\n","a+", true);
exit(1);
break;
case E_USER_WARNING:
echo "My WARNING</b> [$errno] $errstr<br />\n";
FilePrint("log_dzo.txt", "",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "My WARNING</b> [$errno] $errstr at $errline in $errfile\n","a+", true);
break;
case E_WARNING:
echo "<b>My WARNING</b> [$errno] $errstr<br />\n";
FilePrint("log_dzo.txt", "",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "My WARNING</b> [$errno] $errstr at $errline in $errfile\n","a+", true);
break;
case E_USER_NOTICE:
echo "<b>My NOTICE</b> [$errno] $errstr<br />\n";
FilePrint("log_dzo.txt", "",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "My NOTICE</b> [$errno] $errstr at $errline in $errfile\n","a+", true);
break;
default:
echo "Unknown error type: [$errno] $errstr<br />\n";
FilePrint("log_dzo.txt", "",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "Unknown error type: [$errno] $errstr at $errline in $errfile\n","a+", true);
break;
}
/* Don't execute PHP internal error handler */
return true;
}
}
$old_error_handler = set_error_handler("myErrorHandler",E_ALL | E_WARNING);
//my $log_info = $query->param("log_info"); #Pass log info to the referrer.
prof_flag("Start");
FilePrint($sessid, ".txt", $sessid . ":0:12\n","w", true);
//print_r(get_declared_classes()); //Good for testing the classes loaded.
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["file"]["tmp_name"]);
if($check !== false) {
FilePrint("log_dzo.txt", "",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "File is an image - " . $check["mime"] . ".\n","a+", true);
$uploadOk = 1;
} else {
FilePrint("log_dzo.txt", "", date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "File is not an image.\n","a+", true);
$uploadOk = 0;
}
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
FilePrint("log_dzo.txt", "", date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "Sorry, there was an error uploading your file.\n","a+", true);
exit(1);
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["file"]["tmp_name"], $target_file)) {
FilePrint("log_dzo.txt", "", date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "The file ". basename( $_FILES["file"]["name"]). " has been uploaded.\n","a+", true);
} else {
FilePrint("log_dzo.txt", "", date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "Sorry, there was an error uploading your file.\n","a+", true);
exit(1);
}
}
// Create the tiles
//Parameters
//Image, path ,.dzi name, output format, tilesize, overlap, width, height, zipped output, reason, progress(fine/coarse)
prof_flag("Tiling");
//Get the image
list($width, $height, $image_type) = getimagesize($target_file);
switch($image_type) {
case 1 :
$myimage = imagecreatefromgif($target_file);
break;
case 3 :
$myimage = imagecreatefrompng($target_file);
break;
case 6 :
$myimage = imagecreatetruecolor($target_file);
break;
case 2 :
$myimage = imagecreatefromjpeg($target_file);
break;
default:
FilePrint("log_dzo.txt", "", date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "Image is not GIF, JPEG, PNG or BMP." . $image_type . "\n","a+", true);
exit(1);
break;
}
// Get new sizes
// Load
// Resize
//Get dimensions of the image.
$maxDimension = max($width,$height);
//Create DZI and Json info
$dziStr = "<?xml version='1.0' encoding='UTF-8'?><Image xmlns='http://schemas.microsoft.com/deepzoom/2008' Format='jpg' Overlap='" . $overlap . "' TileSize='" . $tilesize . "' ><Size Height='" . $height . "' Width='" . $width . "' /></Image>";
$jsonStr = "{Image: {xmlns: 'http://schemas.microsoft.com/deepzoom/2008', Format: 'jpg', Overlap:" . $overlap . ", TileSize: " . $tileSize . ", Size: { Width: " . $width . " , Height: " . $height . " } }}";
FilePrint($target_file,".dzi",$dziStr,"w", true);
FilePrint($target_file,".json",$jsonStr,"w", true);
//Calculate resize steps. Bassically calculate how many times we need to elevate 2 to get the goal size.
$stepsmax = (int)(log($maxDimension,2)) + 1;
//We choose to draw the less steps.
//While smaller side > 1
//$steps = $stepsmax;
$tempX = $width;
$tempY = $height;
$steps = $stepsmax;
$tempImage = imagecreatetruecolor($width, $height);
imagecopyresized($tempImage, $myimage, 0, 0, 0, 0, $width, $height, $width, $height);
for ($i = 0; $i <= $stepsmax; $i++)
{
//Create a clone to use as a temp image.
//$tempImage= clone $myimage;
//First step no resize.
if ($steps == $stepsmax)
{
FilePrint("log_dzo.txt","",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . " First Step: " . $steps . "\n","a+", true);
$stepsX = (int)($tempX/$tilesize);
$stepsY = (int)($tempY/$tilesize);
FilePrint("log_dzo.txt","",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "First dimensions. TempX: " . $tempX . "\n","a+", false);
}
else //Resize the temp image
{
FilePrint("log_dzo.txt","",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "Next Steps: " . $steps . "\n", "a+", false);
$tempX = (int)ceil($tempX / 2);
$tempY = (int)ceil($tempY / 2);
imagecopyresized($tempImage, $myimage, 0, 0, 0, 0, $tempX, $tempY, $width, $height);
$stepsX = (int)($tempX/$tilesize);
$stepsY = (int)($tempY/$tilesize);
FilePrint("log_dzo.txt","",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . "Next dimensions. TempX: ". $tempX . "\n","a+", false);
}
$Xtilesize = $tilesize;
//while cropped width > tilesize
for ($j = 0; $j <= $stepsX; $j++)
{
$Ytilesize = $tilesize;
$X1=($tilesize*$j)-($overlap*$j);
$Xlimit = $tempX - $X1;
if ($Xlimit < $tilesize){$Xtilesize = $Xlimit;}
for ($k = 0; $k <= $stepsY; $k++)
{
//Create a clone of the resized clone to use as a temp image for every crop done.
$Y1=($tilesize*$k)-($overlap*$k);
$Ylimit = $tempY - $Y1;
if ($Ylimit < $tilesize){$Ytilesize = $Ylimit;}
$croppedImage = imagecreatetruecolor($Xtilesize, $Ytilesize); // resample
//$to_crop_array = array('x' =>$X1 , 'y' => $Y1, 'width' => $Xtilesize, 'height'=> $Ytilesize); //PHP 5.5.0 and over
//$croppedImage = imagecrop($tempImage, $to_crop_array);
imagecopy ($croppedImage , $tempImage , 0 , 0 , $X1 , $Y1 , $Xtilesize , $Ytilesize);
mkdir($target_file . "_files/", 0755);
mkdir($target_file . "_files/" . $steps, 0755);
//Write the cropped file in the correspondent dir.
$croppedImage = imagejpeg($croppedImage,$target_file . "_files/" . $steps . "/" . $j . "_". $k . ".jpg",90);
$stro = "File: " . $target_file . " step: " . $steps . " stepX: " . $j . " StepY: ". $k ." X1: " . $X1 . " Y1: " . $Y1 . " cropped width: " . $Xtilesize . " cropped height: " . $Ytilesize . "\n";
FilePrint("log_dzo.txt","",date(DATE_RFC2822) . " " . $sessid . " " . $target_file . $stro,"a+", false);
FilePrint($sessid, ".txt", $sessid . ":" . $i . ":" . $stepsmax . "\n", "w", true);
}
}
$steps--;
}
prof_flag("Done");
prof_print();
//Do a happy day regard to the user.
function FilePrint($file,$ext,$string,$mode,$mandatory)
{
global $debug_info, $log_info;
if ($debug_info == "true"){echo $string;}
if ($log_info == "true" || $mandatory == true)
{
$fp = fopen($file . $ext, $mode);
fwrite($fp, $string);
fclose($fp);
}
}
?>