From 6c2cd91184c0d1ced708802b73d62458dcaca997 Mon Sep 17 00:00:00 2001 From: Domovoy Date: Sun, 22 Jul 2012 13:43:46 +0200 Subject: [PATCH] gd is back in the game as a fallback: not everybody can have Imagick. --- include/Photo.php | 407 ++++++++++++++++++++++++++++++++++++---------- 1 file changed, 318 insertions(+), 89 deletions(-) diff --git a/include/Photo.php b/include/Photo.php index 18e8e6e9a1..de29dfb672 100644 --- a/include/Photo.php +++ b/include/Photo.php @@ -6,55 +6,105 @@ class Photo { private $image; private $ext; + /** + * Put back gd stuff, not everybody have Imagick + */ + private $imagick; + private $width; + private $height; + private $valid; + private $type; + private $types; + /** * supported mimetypes and corresponding file extensions */ static function supportedTypes() { - /** - * Imagick::queryFormats won't help us a lot there... - * At least, not yet, other parts of friendica uses this array - */ - $t = array( - 'image/jpeg' => 'jpg', - 'image/png' => 'png', - 'image/gif' => 'gif' - ); + if(class_exists('Imagick')) { + /** + * Imagick::queryFormats won't help us a lot there... + * At least, not yet, other parts of friendica uses this array + */ + $t = array( + 'image/jpeg' => 'jpg', + 'image/png' => 'png', + 'image/gif' => 'gif' + ); + } else { + $t = array(); + $t['image/jpeg'] ='jpg'; + if (imagetypes() & IMG_PNG) $t['image/png'] = 'png'; + } + return $t; } public function __construct($data, $type=null) { - $this->image = new Imagick(); - $this->image->readImageBlob($data); - - // If it is a gif, it may be animated, get it ready for any future operations - if($this->image->getFormat() !== "GIF") $this->image = $this->image->coalesceImages(); - - $this->ext = strtolower($this->image->getImageFormat()); + $this->imagick = class_exists('Imagick'); + + if($this->is_imagick()) { + $this->image = new Imagick(); + $this->image->readImageBlob($data); + + // If it is a gif, it may be animated, get it ready for any future operations + if($this->image->getFormat() !== "GIF") $this->image = $this->image->coalesceImages(); + + $this->ext = strtolower($this->image->getImageFormat()); + } else { + $this->types = $this->supportedTypes(); + if (!array_key_exists($type,$this->types)){ + $type='image/jpeg'; + } + $this->valid = false; + $this->type = $type; + $this->image = @imagecreatefromstring($data); + if($this->image !== FALSE) { + $this->width = imagesx($this->image); + $this->height = imagesy($this->image); + $this->valid = true; + imagealphablending($this->image, false); + imagesavealpha($this->image, true); + } + } } public function __destruct() { if($this->image) { - $this->image->clear(); - $this->image->destroy(); + if($this->is_imagick()) { + $this->image->clear(); + $this->image->destroy(); + return; + } + imagedestroy($this->image); } } + public function is_imagick() { + return $this->imagick; + } + public function is_valid() { - return ($this->image !== FALSE); + if($this->is_imagick()) + return ($this->image !== FALSE); + return $this->valid; } public function getWidth() { if(!$this->is_valid()) return FALSE; - return $this->image->getImageWidth(); + if($this->is_imagick()) + return $this->image->getImageWidth(); + return $this->width; } public function getHeight() { if(!$this->is_valid()) return FALSE; - return $this->image->getImageHeight(); + if($this->is_imagick()) + return $this->image->getImageHeight(); + return $this->height; } public function getImage() { @@ -62,7 +112,10 @@ class Photo { return FALSE; /* Clean it */ - $this->image = $this->image->deconstructImages(); + if($this->is_imagick()) { + $this->image = $this->image->deconstructImages(); + return $this->image; + } return $this->image; } @@ -70,51 +123,131 @@ class Photo { if(!$this->is_valid()) return FALSE; - // This should do the trick (see supportedTypes above) - return 'image/'. $this->getExt(); + if($this->is_imagick()) { + // This should do the trick (see supportedTypes above) + return 'image/'. $this->getExt(); + } + return $this->type; } public function getExt() { if(!$this->is_valid()) return FALSE; - return $this->ext; + if($this->is_imagick()) + return $this->ext; + return $this->types[$this->type]; } public function scaleImage($max) { if(!$this->is_valid()) return FALSE; - /** - * If it is not animated, there will be only one iteration here, - * so don't bother checking - */ - // Don't forget to go back to the first frame for any further operation - $this->image->setFirstIterator(); - do { - $this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, true); - } while ($this->image->nextImage()); + if($this->is_imagick()) { + /** + * If it is not animated, there will be only one iteration here, + * so don't bother checking + */ + // Don't forget to go back to the first frame for any further operation + $this->image->setFirstIterator(); + do { + $this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, true); + } while ($this->image->nextImage()); + return; + } + + $width = $this->width; + $height = $this->height; + + $dest_width = $dest_height = 0; + + if((! $width)|| (! $height)) + return FALSE; + + if($width > $max && $height > $max) { + if($width > $height) { + $dest_width = $max; + $dest_height = intval(( $height * $max ) / $width); + } + else { + $dest_width = intval(( $width * $max ) / $height); + $dest_height = $max; + } + } + else { + if( $width > $max ) { + $dest_width = $max; + $dest_height = intval(( $height * $max ) / $width); + } + else { + if( $height > $max ) { + $dest_width = intval(( $width * $max ) / $height); + $dest_height = $max; + } + else { + $dest_width = $width; + $dest_height = $height; + } + } + } + + + $dest = imagecreatetruecolor( $dest_width, $dest_height ); + imagealphablending($dest, false); + imagesavealpha($dest, true); + if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha + imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height); + if($this->image) + imagedestroy($this->image); + $this->image = $dest; + $this->width = imagesx($this->image); + $this->height = imagesy($this->image); } public function rotate($degrees) { if(!$this->is_valid()) return FALSE; - $this->image->setFirstIterator(); - do { - $this->image->rotateImage(new ImagickPixel(), $degrees); - } while ($this->image->nextImage()); + if($this->is_imagick()) { + $this->image->setFirstIterator(); + do { + $this->image->rotateImage(new ImagickPixel(), $degrees); + } while ($this->image->nextImage()); + return; + } + + $this->image = imagerotate($this->image,$degrees,0); + $this->width = imagesx($this->image); + $this->height = imagesy($this->image); } public function flip($horiz = true, $vert = false) { if(!$this->is_valid()) return FALSE; - $this->image->setFirstIterator(); - do { - if($horiz) $this->image->flipImage(); - if($vert) $this->image->flopImage(); - } while ($this->image->nextImage()); + if($this->is_imagick()) { + $this->image->setFirstIterator(); + do { + if($horiz) $this->image->flipImage(); + if($vert) $this->image->flopImage(); + } while ($this->image->nextImage()); + return; + } + + $w = imagesx($this->image); + $h = imagesy($this->image); + $flipped = imagecreate($w, $h); + if($horiz) { + for ($x = 0; $x < $w; $x++) { + imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h); + } + } + if($vert) { + for ($y = 0; $y < $h; $y++) { + imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1); + } + } + $this->image = $flipped; } public function orient($filename) { @@ -172,7 +305,55 @@ class Photo { if(!$this->is_valid()) return FALSE; - $this->scaleImage($min); + if($this->is_imagick()) + return $this->scaleImage($min); + + $width = $this->width; + $height = $this->height; + + $dest_width = $dest_height = 0; + + if((! $width)|| (! $height)) + return FALSE; + + if($width < $min && $height < $min) { + if($width > $height) { + $dest_width = $min; + $dest_height = intval(( $height * $min ) / $width); + } + else { + $dest_width = intval(( $width * $min ) / $height); + $dest_height = $min; + } + } + else { + if( $width < $min ) { + $dest_width = $min; + $dest_height = intval(( $height * $min ) / $width); + } + else { + if( $height < $min ) { + $dest_width = intval(( $width * $min ) / $height); + $dest_height = $min; + } + else { + $dest_width = $width; + $dest_height = $height; + } + } + } + + + $dest = imagecreatetruecolor( $dest_width, $dest_height ); + imagealphablending($dest, false); + imagesavealpha($dest, true); + if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha + imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height); + if($this->image) + imagedestroy($this->image); + $this->image = $dest; + $this->width = imagesx($this->image); + $this->height = imagesy($this->image); } @@ -181,10 +362,24 @@ class Photo { if(!$this->is_valid()) return FALSE; - $this->image->setFirstIterator(); - do { - $this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, false); - } while ($this->image->nextImage()); + if($this->is_imagick()) { + $this->image->setFirstIterator(); + do { + $this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, false); + } while ($this->image->nextImage()); + return; + } + + $dest = imagecreatetruecolor( $dim, $dim ); + imagealphablending($dest, false); + imagesavealpha($dest, true); + if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha + imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height); + if($this->image) + imagedestroy($this->image); + $this->image = $dest; + $this->width = imagesx($this->image); + $this->height = imagesy($this->image); } @@ -192,17 +387,30 @@ class Photo { if(!$this->is_valid()) return FALSE; - $this->image->setFirstIterator(); - do { - $this->image->cropImage($w, $h, $x, $y); - /** - * We need to remove the canva, - * or the image is not resized to the crop: - * http://php.net/manual/en/imagick.cropimage.php#97232 - */ - $this->image->setImagePage(0, 0, 0, 0); - } while ($this->image->nextImage()); - $this->scaleImage($max); + if($this->is_imagick()) { + $this->image->setFirstIterator(); + do { + $this->image->cropImage($w, $h, $x, $y); + /** + * We need to remove the canva, + * or the image is not resized to the crop: + * http://php.net/manual/en/imagick.cropimage.php#97232 + */ + $this->image->setImagePage(0, 0, 0, 0); + } while ($this->image->nextImage()); + return $this->scaleImage($max); + } + + $dest = imagecreatetruecolor( $max, $max ); + imagealphablending($dest, false); + imagesavealpha($dest, true); + if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha + imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h); + if($this->image) + imagedestroy($this->image); + $this->image = $dest; + $this->width = imagesx($this->image); + $this->height = imagesy($this->image); } public function saveImage($path) { @@ -220,27 +428,32 @@ class Photo { $quality = FALSE; /** - * Hmmm, + * Hmmm, for Imagick * we should do the conversion/compression at the initialisation i think * This method may be called several times, * and there is no need to do that more than once */ - switch($this->image->getImageFormat()){ - case "PNG": + + if(!$this->is_imagick()) ob_start(); + + switch($this->getType()){ + case "image/png": $quality = get_config('system','png_quality'); if((! $quality) || ($quality > 9)) $quality = PNG_QUALITY; - /** - * From http://www.imagemagick.org/script/command-line-options.php#quality: - * - * 'For the MNG and PNG image formats, the quality value sets - * the zlib compression level (quality / 10) and filter-type (quality % 10). - * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering, - * unless the image has a color map, in which case it means compression level 7 with no PNG filtering' - */ - $quality = $quality * 10; + if($this->is_imagick()) { + /** + * From http://www.imagemagick.org/script/command-line-options.php#quality: + * + * 'For the MNG and PNG image formats, the quality value sets + * the zlib compression level (quality / 10) and filter-type (quality % 10). + * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering, + * unless the image has a color map, in which case it means compression level 7 with no PNG filtering' + */ + $quality = $quality * 10; + } else imagepng($this->image,NULL, $quality); break; - case "GIF": + case "image/gif": // We change nothing here, do we? break; default: @@ -248,16 +461,24 @@ class Photo { $quality = get_config('system','jpeg_quality'); if((! $quality) || ($quality > 100)) $quality = JPEG_QUALITY; - $this->image->setImageFormat('jpeg'); + if($this->is_imagick()) + $this->image->setImageFormat('jpeg'); + else imagejpeg($this->image,NULL,$quality); } - if($quality !== FALSE) { + if($this->is_imagick()) { + if($quality !== FALSE) { // Do we need to iterate for animations? $this->image->setImageCompressionQuality($quality); $this->image->stripImage(); + } + + $string = $this->image->getImagesBlob(); + } else { + $string = ob_get_contents(); + ob_end_clean(); } - $string = $this->image->getImagesBlob(); return $string; } @@ -373,19 +594,22 @@ function guess_image_type($filename, $fromcurl=false) { } if (is_null($type)){ // Guessing from extension? Isn't that... dangerous? - /*$ext = pathinfo($filename, PATHINFO_EXTENSION); - $types = Photo::supportedTypes(); - $type = "image/jpeg"; - foreach ($types as $m=>$e){ - if ($ext==$e) $type = $m; - }*/ - /** - * Well, this not much better, - * but at least it comes from the data inside the image, - * we won't be tricked by a manipulated extension - */ - $image = new Imagick($filename); - $type = 'image/'. strtolower($image->getImageFormat()); + if($this->is_imagick()) { + /** + * Well, this not much better, + * but at least it comes from the data inside the image, + * we won't be tricked by a manipulated extension + */ + $image = new Imagick($filename); + $type = 'image/'. strtolower($image->getImageFormat()); + } else { + $ext = pathinfo($filename, PATHINFO_EXTENSION); + $types = Photo::supportedTypes(); + $type = "image/jpeg"; + foreach ($types as $m=>$e){ + if ($ext==$e) $type = $m; + } + } } logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG); return $type; @@ -412,7 +636,12 @@ function import_profile_photo($photo,$uid,$cid) { $filename = basename($photo); $img_str = fetch_url($photo,true); - $img = new Photo($img_str); + if($this->is_imagick()) $type = null; + else { + // guess mimetype from headers or filename + $type = guess_image_type($photo,true); + } + $img = new Photo($img_str, $type); if($img->is_valid()) { $img->scaleImageSquare(175); -- 2.39.5