src/Object/Image.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Object;
  23
  24 use Exception;
  25 use Friendica\DI;
  26 use Friendica\Util\Images;
  27 use Imagick;
  28 use ImagickDraw;
  29 use ImagickPixel;
  30 use GDImage;
  31 use kornrunner\Blurhash\Blurhash;
  32
  33 /**
  34  * Class to handle images
  35  */
  36 class Image
  37 {
  38         /** @var GDImage|Imagick|resource */
  39         private $image;
  40
  41         /*
  42          * Put back gd stuff, not everybody have Imagick
  43          */
  44         private $imagick;
  45         private $width;
  46         private $height;
  47         private $valid;
  48         private $type;
  49         private $types;
  50
  51         /**
  52          * Constructor
  53          *
  54          * @param string $data Image data
  55          * @param string $type optional, default null
  56          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  57          * @throws \ImagickException
  58          */
  59         public function __construct(string $data, string $type = null)
  60         {
  61                 $this->imagick = class_exists('Imagick');
  62                 $this->types = Images::supportedTypes();
  63                 if (!array_key_exists($type, $this->types)) {
  64                         $type = 'image/jpeg';
  65                 }
  66                 $this->type = $type;
  67
  68                 if ($this->isImagick() && (empty($data) || $this->loadData($data))) {
  69                         $this->valid = !empty($data);
  70                         return;
  71                 } else {
  72                         // Failed to load with Imagick, fallback
  73                         $this->imagick = false;
  74                 }
  75                 $this->loadData($data);
  76         }
  77
  78         /**
  79          * Destructor
  80          *
  81          * @return void
  82          */
  83         public function __destruct()
  84         {
  85                 if ($this->image) {
  86                         if ($this->isImagick()) {
  87                                 $this->image->clear();
  88                                 $this->image->destroy();
  89                                 return;
  90                         }
  91                         if (is_resource($this->image)) {
  92                                 imagedestroy($this->image);
  93                         }
  94                 }
  95         }
  96
  97         /**
  98          * @return boolean
  99          */
 100         public function isImagick()
 101         {
 102                 return $this->imagick;
 103         }
 104
 105         /**
 106          * Loads image data into handler class
 107          *
 108          * @param string $data Image data
 109          * @return boolean Success
 110          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 111          * @throws \ImagickException
 112          */
 113         private function loadData(string $data): bool
 114         {
 115                 if ($this->isImagick()) {
 116                         $this->image = new Imagick();
 117                         try {
 118                                 $this->image->readImageBlob($data);
 119                         } catch (Exception $e) {
 120                                 // Imagick couldn't use the data
 121                                 return false;
 122                         }
 123
 124                         /*
 125                          * Setup the image to the format it will be saved to
 126                          */
 127                         $map = Images::getFormatsMap();
 128                         $format = $map[$this->type];
 129                         $this->image->setFormat($format);
 130
 131                         // Always coalesce, if it is not a multi-frame image it won't hurt anyway
 132                         try {
 133                                 $this->image = $this->image->coalesceImages();
 134                         } catch (Exception $e) {
 135                                 return false;
 136                         }
 137
 138                         /*
 139                          * setup the compression here, so we'll do it only once
 140                          */
 141                         switch ($this->getType()) {
 142                                 case 'image/png':
 143                                         $quality = DI::config()->get('system', 'png_quality');
 144                                         /*
 145                                          * From http://www.imagemagick.org/script/command-line-options.php#quality:
 146                                          *
 147                                          * 'For the MNG and PNG image formats, the quality value sets
 148                                          * the zlib compression level (quality / 10) and filter-type (quality % 10).
 149                                          * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
 150                                          * unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
 151                                          */
 152                                         $quality = $quality * 10;
 153                                         $this->image->setCompressionQuality($quality);
 154                                         break;
 155
 156                                 case 'image/jpg':
 157                                 case 'image/jpeg':
 158                                         $quality = DI::config()->get('system', 'jpeg_quality');
 159                                         $this->image->setCompressionQuality($quality);
 160                         }
 161
 162                         $this->width  = $this->image->getImageWidth();
 163                         $this->height = $this->image->getImageHeight();
 164                         $this->valid  = !empty($this->image);
 165
 166                         return $this->valid;
 167                 }
 168
 169                 $this->valid = false;
 170                 try {
 171                         $this->image = @imagecreatefromstring($data);
 172                         if ($this->image !== false) {
 173                                 $this->width  = imagesx($this->image);
 174                                 $this->height = imagesy($this->image);
 175                                 $this->valid  = true;
 176                                 imagealphablending($this->image, false);
 177                                 imagesavealpha($this->image, true);
 178
 179                                 return true;
 180                         }
 181                 } catch (\Throwable $error) {
 182                         /** @see https://github.com/php/doc-en/commit/d09a881a8e9059d11e756ee59d75bf404d6941ed */
 183                         if (strstr($error->getMessage(), "gd-webp cannot allocate temporary buffer")) {
 184                                 DI::logger()->notice('Image is probably animated and therefore unsupported', ['error' => $error]);
 185                         } else {
 186                                 DI::logger()->warning('Unexpected throwable.', ['error' => $error]);
 187                         }
 188                 }
 189
 190                 return false;
 191         }
 192
 193         /**
 194          * @return boolean
 195          */
 196         public function isValid(): bool
 197         {
 198                 if ($this->isImagick()) {
 199                         return ($this->image !== false);
 200                 }
 201                 return $this->valid;
 202         }
 203
 204         /**
 205          * @return mixed
 206          */
 207         public function getWidth()
 208         {
 209                 if (!$this->isValid()) {
 210                         return false;
 211                 }
 212
 213                 return $this->width;
 214         }
 215
 216         /**
 217          * @return mixed
 218          */
 219         public function getHeight()
 220         {
 221                 if (!$this->isValid()) {
 222                         return false;
 223                 }
 224
 225                 return $this->height;
 226         }
 227
 228         /**
 229          * @return mixed
 230          */
 231         public function getImage()
 232         {
 233                 if (!$this->isValid()) {
 234                         return false;
 235                 }
 236
 237                 if ($this->isImagick()) {
 238                         try {
 239                                 /* Clean it */
 240                                 $this->image = $this->image->deconstructImages();
 241                                 return $this->image;
 242                         } catch (Exception $e) {
 243                                 return false;
 244                         }
 245                 }
 246                 return $this->image;
 247         }
 248
 249         /**
 250          * @return mixed
 251          */
 252         public function getType()
 253         {
 254                 if (!$this->isValid()) {
 255                         return false;
 256                 }
 257
 258                 return $this->type;
 259         }
 260
 261         /**
 262          * @return mixed
 263          */
 264         public function getExt()
 265         {
 266                 if (!$this->isValid()) {
 267                         return false;
 268                 }
 269
 270                 return $this->types[$this->getType()];
 271         }
 272
 273         /**
 274          * Scales image down
 275          *
 276          * @param integer $max max dimension
 277          * @return mixed
 278          */
 279         public function scaleDown(int $max)
 280         {
 281                 if (!$this->isValid()) {
 282                         return false;
 283                 }
 284
 285                 $width = $this->getWidth();
 286                 $height = $this->getHeight();
 287
 288                 if ((! $width)|| (! $height)) {
 289                         return false;
 290                 }
 291
 292                 if ($width > $max && $height > $max) {
 293                         // very tall image (greater than 16:9)
 294                         // constrain the width - let the height float.
 295
 296                         if ((($height * 9) / 16) > $width) {
 297                                 $dest_width = $max;
 298                                 $dest_height = intval(($height * $max) / $width);
 299                         } elseif ($width > $height) {
 300                                 // else constrain both dimensions
 301                                 $dest_width = $max;
 302                                 $dest_height = intval(($height * $max) / $width);
 303                         } else {
 304                                 $dest_width = intval(($width * $max) / $height);
 305                                 $dest_height = $max;
 306                         }
 307                 } else {
 308                         if ($width > $max) {
 309                                 $dest_width = $max;
 310                                 $dest_height = intval(($height * $max) / $width);
 311                         } else {
 312                                 if ($height > $max) {
 313                                         // very tall image (greater than 16:9)
 314                                         // but width is OK - don't do anything
 315
 316                                         if ((($height * 9) / 16) > $width) {
 317                                                 $dest_width = $width;
 318                                                 $dest_height = $height;
 319                                         } else {
 320                                                 $dest_width = intval(($width * $max) / $height);
 321                                                 $dest_height = $max;
 322                                         }
 323                                 } else {
 324                                         $dest_width = $width;
 325                                         $dest_height = $height;
 326                                 }
 327                         }
 328                 }
 329
 330                 return $this->scale($dest_width, $dest_height);
 331         }
 332
 333         /**
 334          * Rotates image
 335          *
 336          * @param integer $degrees degrees to rotate image
 337          * @return mixed
 338          */
 339         public function rotate(int $degrees)
 340         {
 341                 if (!$this->isValid()) {
 342                         return false;
 343                 }
 344
 345                 if ($this->isImagick()) {
 346                         $this->image->setFirstIterator();
 347                         do {
 348                                 $this->image->rotateImage(new ImagickPixel(), -$degrees); // ImageMagick rotates in the opposite direction of imagerotate()
 349                         } while ($this->image->nextImage());
 350
 351                         $this->width  = $this->image->getImageWidth();
 352                         $this->height = $this->image->getImageHeight();
 353                         return;
 354                 }
 355
 356                 // if script dies at this point check memory_limit setting in php.ini
 357                 $this->image  = imagerotate($this->image, $degrees, 0);
 358                 $this->width  = imagesx($this->image);
 359                 $this->height = imagesy($this->image);
 360         }
 361
 362         /**
 363          * Flips image
 364          *
 365          * @param boolean $horiz optional, default true
 366          * @param boolean $vert  optional, default false
 367          * @return mixed
 368          */
 369         public function flip(bool $horiz = true, bool $vert = false)
 370         {
 371                 if (!$this->isValid()) {
 372                         return false;
 373                 }
 374
 375                 if ($this->isImagick()) {
 376                         $this->image->setFirstIterator();
 377                         do {
 378                                 if ($horiz) {
 379                                         $this->image->flipImage();
 380                                 }
 381                                 if ($vert) {
 382                                         $this->image->flopImage();
 383                                 }
 384                         } while ($this->image->nextImage());
 385                         return;
 386                 }
 387
 388                 $w = imagesx($this->image);
 389                 $h = imagesy($this->image);
 390                 $flipped = imagecreate($w, $h);
 391                 if ($horiz) {
 392                         for ($x = 0; $x < $w; $x++) {
 393                                 imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h);
 394                         }
 395                 }
 396                 if ($vert) {
 397                         for ($y = 0; $y < $h; $y++) {
 398                                 imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1);
 399                         }
 400                 }
 401                 $this->image = $flipped;
 402         }
 403
 404         /**
 405          * Fixes orientation and maybe returns EXIF data (?)
 406          *
 407          * @param string $filename Filename
 408          * @return mixed
 409          */
 410         public function orient(string $filename)
 411         {
 412                 if ($this->isImagick()) {
 413                         // based off comment on http://php.net/manual/en/imagick.getimageorientation.php
 414                         $orientation = $this->image->getImageOrientation();
 415                         switch ($orientation) {
 416                                 case Imagick::ORIENTATION_BOTTOMRIGHT:
 417                                         $this->image->rotateimage("#000", 180);
 418                                         break;
 419                                 case Imagick::ORIENTATION_RIGHTTOP:
 420                                         $this->image->rotateimage("#000", 90);
 421                                         break;
 422                                 case Imagick::ORIENTATION_LEFTBOTTOM:
 423                                         $this->image->rotateimage("#000", -90);
 424                                         break;
 425                         }
 426
 427                         $this->image->setImageOrientation(Imagick::ORIENTATION_TOPLEFT);
 428                         return true;
 429                 }
 430                 // based off comment on http://php.net/manual/en/function.imagerotate.php
 431
 432                 if (!$this->isValid()) {
 433                         return false;
 434                 }
 435
 436                 if ((!function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg')) {
 437                         return;
 438                 }
 439
 440                 $exif = @exif_read_data($filename, null, true);
 441                 if (!$exif) {
 442                         return;
 443                 }
 444
 445                 $ort = isset($exif['IFD0']['Orientation']) ? $exif['IFD0']['Orientation'] : 1;
 446
 447                 switch ($ort) {
 448                         case 1: // nothing
 449                                 break;
 450
 451                         case 2: // horizontal flip
 452                                 $this->flip();
 453                                 break;
 454
 455                         case 3: // 180 rotate left
 456                                 $this->rotate(180);
 457                                 break;
 458
 459                         case 4: // vertical flip
 460                                 $this->flip(false, true);
 461                                 break;
 462
 463                         case 5: // vertical flip + 90 rotate right
 464                                 $this->flip(false, true);
 465                                 $this->rotate(-90);
 466                                 break;
 467
 468                         case 6: // 90 rotate right
 469                                 $this->rotate(-90);
 470                                 break;
 471
 472                         case 7: // horizontal flip + 90 rotate right
 473                                 $this->flip();
 474                                 $this->rotate(-90);
 475                                 break;
 476
 477                         case 8: // 90 rotate left
 478                                 $this->rotate(90);
 479                                 break;
 480                 }
 481
 482                 return $exif;
 483         }
 484
 485         /**
 486          * Rescales image to minimum size
 487          *
 488          * @param integer $min Minimum dimension
 489          * @return mixed
 490          */
 491         public function scaleUp(int $min)
 492         {
 493                 if (!$this->isValid()) {
 494                         return false;
 495                 }
 496
 497                 $width = $this->getWidth();
 498                 $height = $this->getHeight();
 499
 500                 if ((!$width)|| (!$height)) {
 501                         return false;
 502                 }
 503
 504                 if ($width < $min && $height < $min) {
 505                         if ($width > $height) {
 506                                 $dest_width = $min;
 507                                 $dest_height = intval(($height * $min) / $width);
 508                         } else {
 509                                 $dest_width = intval(($width * $min) / $height);
 510                                 $dest_height = $min;
 511                         }
 512                 } else {
 513                         if ($width < $min) {
 514                                 $dest_width = $min;
 515                                 $dest_height = intval(($height * $min) / $width);
 516                         } else {
 517                                 if ($height < $min) {
 518                                         $dest_width = intval(($width * $min) / $height);
 519                                         $dest_height = $min;
 520                                 } else {
 521                                         $dest_width = $width;
 522                                         $dest_height = $height;
 523                                 }
 524                         }
 525                 }
 526
 527                 return $this->scale($dest_width, $dest_height);
 528         }
 529
 530         /**
 531          * Scales image to square
 532          *
 533          * @param integer $dim Dimension
 534          * @return mixed
 535          */
 536         public function scaleToSquare(int $dim)
 537         {
 538                 if (!$this->isValid()) {
 539                         return false;
 540                 }
 541
 542                 return $this->scale($dim, $dim);
 543         }
 544
 545         /**
 546          * Scale image to target dimensions
 547          *
 548          * @param int $dest_width Destination width
 549          * @param int $dest_height Destination height
 550          * @return boolean Success
 551          */
 552         private function scale(int $dest_width, int $dest_height): bool
 553         {
 554                 if (!$this->isValid()) {
 555                         return false;
 556                 }
 557
 558                 if ($this->isImagick()) {
 559                         /*
 560                          * If it is not animated, there will be only one iteration here,
 561                          * so don't bother checking
 562                          */
 563                         // Don't forget to go back to the first frame
 564                         $this->image->setFirstIterator();
 565                         do {
 566                                 // FIXME - implement horizontal bias for scaling as in following GD functions
 567                                 // to allow very tall images to be constrained only horizontally.
 568                                 try {
 569                                         $this->image->scaleImage($dest_width, $dest_height);
 570                                 } catch (Exception $e) {
 571                                         // Imagick couldn't use the data
 572                                         return false;
 573                                 }
 574                         } while ($this->image->nextImage());
 575
 576                         $this->width  = $this->image->getImageWidth();
 577                         $this->height = $this->image->getImageHeight();
 578                 } else {
 579                         $dest = imagecreatetruecolor($dest_width, $dest_height);
 580                         imagealphablending($dest, false);
 581                         imagesavealpha($dest, true);
 582
 583                         if ($this->type=='image/png') {
 584                                 imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 585                         }
 586
 587                         imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $this->width, $this->height);
 588
 589                         if ($this->image) {
 590                                 imagedestroy($this->image);
 591                         }
 592
 593                         $this->image = $dest;
 594                         $this->width  = imagesx($this->image);
 595                         $this->height = imagesy($this->image);
 596                 }
 597
 598                 return true;
 599         }
 600
 601         /**
 602          * Convert a GIF to a PNG to make it static
 603          *
 604          * @return void
 605          */
 606         public function toStatic()
 607         {
 608                 if ($this->type != 'image/gif') {
 609                         return;
 610                 }
 611
 612                 if ($this->isImagick()) {
 613                         $this->type == 'image/png';
 614                         $this->image->setFormat('png');
 615                 }
 616         }
 617
 618         /**
 619          * Crops image
 620          *
 621          * @param integer $max maximum
 622          * @param integer $x   x coordinate
 623          * @param integer $y   y coordinate
 624          * @param integer $w   width
 625          * @param integer $h   height
 626          * @return mixed
 627          */
 628         public function crop(int $max, int $x, int $y, int $w, int $h)
 629         {
 630                 if (!$this->isValid()) {
 631                         return false;
 632                 }
 633
 634                 if ($this->isImagick()) {
 635                         $this->image->setFirstIterator();
 636                         do {
 637                                 $this->image->cropImage($w, $h, $x, $y);
 638                                 /*
 639                                  * We need to remove the canva,
 640                                  * or the image is not resized to the crop:
 641                                  * http://php.net/manual/en/imagick.cropimage.php#97232
 642                                  */
 643                                 $this->image->setImagePage(0, 0, 0, 0);
 644                         } while ($this->image->nextImage());
 645                         return $this->scaleDown($max);
 646                 }
 647
 648                 $dest = imagecreatetruecolor($max, $max);
 649                 imagealphablending($dest, false);
 650                 imagesavealpha($dest, true);
 651                 if ($this->type=='image/png') {
 652                         imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 653                 }
 654                 imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
 655                 if ($this->image) {
 656                         imagedestroy($this->image);
 657                 }
 658                 $this->image  = $dest;
 659                 $this->width  = imagesx($this->image);
 660                 $this->height = imagesy($this->image);
 661
 662                 // All successful
 663                 return true;
 664         }
 665
 666         /**
 667          * Magic method allowing string casting of an Image object
 668          *
 669          * Ex: $data = $Image->asString();
 670          * can be replaced by
 671          * $data = (string) $Image;
 672          *
 673          * @return string
 674          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 675          */
 676         public function __toString(): string
 677         {
 678                 return (string) $this->asString();
 679         }
 680
 681         /**
 682          * Returns image as string or false on failure
 683          *
 684          * @return mixed
 685          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 686          */
 687         public function asString()
 688         {
 689                 if (!$this->isValid()) {
 690                         return false;
 691                 }
 692
 693                 if ($this->isImagick()) {
 694                         try {
 695                                 /* Clean it */
 696                                 $this->image = $this->image->deconstructImages();
 697                                 return $this->image->getImagesBlob();
 698                         } catch (Exception $e) {
 699                                 return false;
 700                         }
 701                 }
 702
 703                 $stream = fopen('php://memory','r+');
 704
 705                 // Enable interlacing
 706                 imageinterlace($this->image, true);
 707
 708                 switch ($this->getType()) {
 709                         case 'image/png':
 710                                 $quality = DI::config()->get('system', 'png_quality');
 711                                 imagepng($this->image, $stream, $quality);
 712                                 break;
 713
 714                         case 'image/jpeg':
 715                         case 'image/jpg':
 716                                 $quality = DI::config()->get('system', 'jpeg_quality');
 717                                 imagejpeg($this->image, $stream, $quality);
 718                                 break;
 719                 }
 720                 rewind($stream);
 721                 return stream_get_contents($stream);
 722         }
 723
 724         /**
 725          * Create a blurhash out of a given image string
 726          *
 727          * @param string $img_str
 728          * @return string
 729          */
 730         public function getBlurHash(): string
 731         {
 732                 $image = New Image($this->asString());
 733                 if (empty($image) || !$this->isValid()) {
 734                         return '';
 735                 }
 736
 737                 $width  = $image->getWidth();
 738                 $height = $image->getHeight();
 739
 740                 if (max($width, $height) > 90) {
 741                         $image->scaleDown(90);
 742                         $width  = $image->getWidth();
 743                         $height = $image->getHeight();
 744                 }
 745
 746                 if (empty($width) || empty($height)) {
 747                         return '';
 748                 }
 749
 750                 $pixels = [];
 751                 for ($y = 0; $y < $height; ++$y) {
 752                         $row = [];
 753                         for ($x = 0; $x < $width; ++$x) {
 754                                 if ($image->isImagick()) {
 755                                         try {
 756                                                 $colors = $image->image->getImagePixelColor($x, $y)->getColor();
 757                                         } catch (\Throwable $th) {
 758                                                 return '';
 759                                         }
 760                                         $row[] = [$colors['r'], $colors['g'], $colors['b']];
 761                                 } else {
 762                                         $index = imagecolorat($image->image, $x, $y);
 763                                         $colors = @imagecolorsforindex($image->image, $index);
 764                                         $row[] = [$colors['red'], $colors['green'], $colors['blue']];
 765                                 }
 766                         }
 767                         $pixels[] = $row;
 768                 }
 769
 770                 // The components define the amount of details (1 to 9).
 771                 $components_x = 9;
 772                 $components_y = 9;
 773
 774                 return Blurhash::encode($pixels, $components_x, $components_y);
 775         }
 776
 777         /**
 778          * Create an image out of a blurhash
 779          *
 780          * @param string $blurhash
 781          * @param integer $width
 782          * @param integer $height
 783          * @return void
 784          */
 785         public function getFromBlurHash(string $blurhash, int $width, int $height)
 786         {
 787                 $scaled = Images::getScalingDimensions($width, $height, 90);
 788                 $pixels = Blurhash::decode($blurhash, $scaled['width'], $scaled['height']);
 789
 790                 if ($this->isImagick()) {
 791                         $this->image = new Imagick();
 792                         $draw  = new ImagickDraw();
 793                         $this->image->newImage($scaled['width'], $scaled['height'], '', 'png');
 794                 } else {
 795                         $this->image = imagecreatetruecolor($scaled['width'], $scaled['height']);
 796                 }
 797
 798                 for ($y = 0; $y < $scaled['height']; ++$y) {
 799                         for ($x = 0; $x < $scaled['width']; ++$x) {
 800                                 [$r, $g, $b] = $pixels[$y][$x];
 801                                 if ($this->isImagick()) {
 802                                         $draw->setFillColor("rgb($r, $g, $b)");
 803                                         $draw->point($x, $y);
 804                                 } else {
 805                                         imagesetpixel($this->image, $x, $y, imagecolorallocate($this->image, $r, $g, $b));
 806                                 }
 807                         }
 808                 }
 809
 810                 if ($this->isImagick()) {
 811                         $this->image->drawImage($draw);
 812                         $this->width  = $this->image->getImageWidth();
 813                         $this->height = $this->image->getImageHeight();
 814                 } else {
 815                         $this->width  = imagesx($this->image);
 816                         $this->height = imagesy($this->image);
 817                 }
 818
 819                 $this->valid = !empty($this->image);
 820
 821                 $this->scaleUp(min($width, $height));
 822         }
 823 }