Photo now uses Imagick instead of gd.
This commit is contained in:
Domovoy
parent
0ff93edeee
commit
fb2f4b6b35
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@ -4,145 +4,125 @@ if(! class_exists("Photo")) {
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class Photo {
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private $image;
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private $width;
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private $height;
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private $valid;
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private $type;
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private $types;
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private $ext;
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/**
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* supported mimetypes and corresponding file extensions
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*/
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static function supportedTypes() {
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$t = array();
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$t['image/jpeg'] ='jpg';
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if (imagetypes() & IMG_PNG) $t['image/png'] = 'png';
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/**
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* Imagick::queryFormats won't help us a lot there...
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* At least, not yet, other parts of friendica uses this array
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*/
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$t = array(
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'image/jpeg' => 'jpg',
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'image/png' => 'png',
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'image/gif' => 'gif'
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);
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return $t;
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}
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public function __construct($data, $type="image/jpeg") {
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public function __construct($data, $type=null) {
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$this->image = new Imagick();
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$this->image->readImageBlob($data);
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$this->types = $this->supportedTypes();
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if (!array_key_exists($type,$this->types)){
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$type='image/jpeg';
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}
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$this->valid = false;
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$this->type = $type;
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$this->image = @imagecreatefromstring($data);
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if($this->image !== FALSE) {
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$this->width = imagesx($this->image);
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$this->height = imagesy($this->image);
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$this->valid = true;
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imagealphablending($this->image, false);
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imagesavealpha($this->image, true);
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}
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// If it is a gif, it may be animated, get it ready for any future operations
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if($this->image->getFormat() !== "GIF") $this->image = $this->image->coalesceImages();
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$this->ext = strtolower($this->image->getImageFormat());
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}
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public function __destruct() {
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if($this->image)
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imagedestroy($this->image);
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if($this->image) {
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$this->image->clear();
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$this->image->destroy();
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}
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}
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public function is_valid() {
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return $this->valid;
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return ($this->image !== FALSE);
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}
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public function getWidth() {
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return $this->width;
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if(!$this->is_valid())
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return FALSE;
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return $this->image->getImageWidth();
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}
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public function getHeight() {
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return $this->height;
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if(!$this->is_valid())
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return FALSE;
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return $this->image->getImageHeight();
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}
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public function getImage() {
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if(!$this->is_valid())
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return FALSE;
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/* Clean it */
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$this->image = $this->image->deconstructImages();
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return $this->image;
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}
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public function getType() {
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return $this->type;
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if(!$this->is_valid())
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return FALSE;
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// This should do the trick (see supportedTypes above)
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return 'image/'. $this->getExt();
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}
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public function getExt() {
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return $this->types[$this->type];
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if(!$this->is_valid())
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return FALSE;
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return $this->ext;
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}
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public function scaleImage($max) {
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$width = $this->width;
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$height = $this->height;
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$dest_width = $dest_height = 0;
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if((! $width)|| (! $height))
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if(!$this->is_valid())
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return FALSE;
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if($width > $max && $height > $max) {
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if($width > $height) {
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$dest_width = $max;
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$dest_height = intval(( $height * $max ) / $width);
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}
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else {
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$dest_width = intval(( $width * $max ) / $height);
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$dest_height = $max;
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}
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}
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else {
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if( $width > $max ) {
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$dest_width = $max;
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$dest_height = intval(( $height * $max ) / $width);
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}
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else {
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if( $height > $max ) {
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$dest_width = intval(( $width * $max ) / $height);
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$dest_height = $max;
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}
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else {
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$dest_width = $width;
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$dest_height = $height;
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}
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}
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}
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$dest = imagecreatetruecolor( $dest_width, $dest_height );
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imagealphablending($dest, false);
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imagesavealpha($dest, true);
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if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
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imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
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if($this->image)
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imagedestroy($this->image);
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$this->image = $dest;
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$this->width = imagesx($this->image);
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$this->height = imagesy($this->image);
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/**
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* If it is not animated, there will be only one iteration here,
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* so don't bother checking
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*/
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// Don't forget to go back to the first frame for any further operation
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$this->image->setFirstIterator();
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do {
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$this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, true);
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} while ($this->image->nextImage());
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}
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public function rotate($degrees) {
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$this->image = imagerotate($this->image,$degrees,0);
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$this->width = imagesx($this->image);
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$this->height = imagesy($this->image);
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if(!$this->is_valid())
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return FALSE;
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$this->image->setFirstIterator();
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do {
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$this->image->rotateImage(new ImagickPixel(), $degrees);
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} while ($this->image->nextImage());
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}
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public function flip($horiz = true, $vert = false) {
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$w = imagesx($this->image);
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$h = imagesy($this->image);
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$flipped = imagecreate($w, $h);
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if($horiz) {
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for ($x = 0; $x < $w; $x++) {
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imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h);
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}
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}
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if($vert) {
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for ($y = 0; $y < $h; $y++) {
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imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1);
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}
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}
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$this->image = $flipped;
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if(!$this->is_valid())
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return FALSE;
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$this->image->setFirstIterator();
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do {
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if($horiz) $this->image->flipImage();
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if($vert) $this->image->flopImage();
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} while ($this->image->nextImage());
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}
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public function orient($filename) {
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// based off comment on http://php.net/manual/en/function.imagerotate.php
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if(!$this->is_valid())
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return FALSE;
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if( (! function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg') )
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return;
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@ -189,122 +169,96 @@ class Photo {
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public function scaleImageUp($min) {
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$width = $this->width;
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$height = $this->height;
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$dest_width = $dest_height = 0;
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if((! $width)|| (! $height))
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if(!$this->is_valid())
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return FALSE;
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if($width < $min && $height < $min) {
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if($width > $height) {
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$dest_width = $min;
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$dest_height = intval(( $height * $min ) / $width);
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}
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else {
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$dest_width = intval(( $width * $min ) / $height);
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$dest_height = $min;
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}
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}
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else {
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if( $width < $min ) {
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$dest_width = $min;
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$dest_height = intval(( $height * $min ) / $width);
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}
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else {
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if( $height < $min ) {
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$dest_width = intval(( $width * $min ) / $height);
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$dest_height = $min;
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}
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else {
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$dest_width = $width;
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$dest_height = $height;
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}
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}
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}
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$dest = imagecreatetruecolor( $dest_width, $dest_height );
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imagealphablending($dest, false);
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imagesavealpha($dest, true);
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if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
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imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
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if($this->image)
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imagedestroy($this->image);
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$this->image = $dest;
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$this->width = imagesx($this->image);
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$this->height = imagesy($this->image);
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$this->scaleImage($min);
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}
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public function scaleImageSquare($dim) {
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if(!$this->is_valid())
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return FALSE;
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$dest = imagecreatetruecolor( $dim, $dim );
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imagealphablending($dest, false);
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imagesavealpha($dest, true);
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if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
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imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height);
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if($this->image)
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imagedestroy($this->image);
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$this->image = $dest;
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$this->width = imagesx($this->image);
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$this->height = imagesy($this->image);
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$this->image->setFirstIterator();
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do {
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$this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, false);
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} while ($this->image->nextImage());
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}
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public function cropImage($max,$x,$y,$w,$h) {
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$dest = imagecreatetruecolor( $max, $max );
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imagealphablending($dest, false);
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imagesavealpha($dest, true);
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if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
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imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
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if($this->image)
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imagedestroy($this->image);
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$this->image = $dest;
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$this->width = imagesx($this->image);
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$this->height = imagesy($this->image);
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if(!$this->is_valid())
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return FALSE;
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$this->image->setFirstIterator();
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do {
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$this->image->cropImage($w, $h, $x, $y);
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/**
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* We need to remove the canva,
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* or the image is not resized to the crop:
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* http://php.net/manual/en/imagick.cropimage.php#97232
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*/
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$this->image->setImagePage(0, 0, 0, 0);
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} while ($this->image->nextImage());
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$this->scaleImage($max);
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}
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public function saveImage($path) {
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switch($this->type){
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case "image/png":
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$quality = get_config('system','png_quality');
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if((! $quality) || ($quality > 9))
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$quality = PNG_QUALITY;
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imagepng($this->image, $path, $quality);
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break;
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default:
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$quality = get_config('system','jpeg_quality');
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if((! $quality) || ($quality > 100))
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$quality = JPEG_QUALITY;
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imagejpeg($this->image,$path,$quality);
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}
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if(!$this->is_valid())
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return FALSE;
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$string = $this->imageString();
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file_put_contents($path, $string);
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}
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public function imageString() {
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ob_start();
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switch($this->type){
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case "image/png":
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if(!$this->is_valid())
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return FALSE;
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$quality = FALSE;
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/**
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* Hmmm,
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* we should do the conversion/compression at the initialisation i think
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* This method may be called several times,
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* and there is no need to do that more than once
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*/
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switch($this->image->getImageFormat()){
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case "PNG":
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$quality = get_config('system','png_quality');
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if((! $quality) || ($quality > 9))
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$quality = PNG_QUALITY;
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imagepng($this->image,NULL, $quality);
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/**
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* From http://www.imagemagick.org/script/command-line-options.php#quality:
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*
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* 'For the MNG and PNG image formats, the quality value sets
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* the zlib compression level (quality / 10) and filter-type (quality % 10).
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* The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
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* unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
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*/
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$quality = $quality * 10;
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break;
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case "GIF":
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// We change nothing here, do we?
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break;
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default:
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// Convert to jpeg by default
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$quality = get_config('system','jpeg_quality');
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if((! $quality) || ($quality > 100))
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$quality = JPEG_QUALITY;
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imagejpeg($this->image,NULL,$quality);
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$this->image->setImageFormat('jpeg');
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}
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$s = ob_get_contents();
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ob_end_clean();
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return $s;
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if($quality !== FALSE) {
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// Do we need to iterate for animations?
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$this->image->setImageCompressionQuality($quality);
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$this->image->stripImage();
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}
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$string = $this->image->getImagesBlob();
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return $string;
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}
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@ -354,10 +308,10 @@ class Photo {
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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dbesc(basename($filename)),
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dbesc($this->type),
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dbesc($this->getType()),
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dbesc($album),
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intval($this->height),
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intval($this->width),
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intval($this->getHeight()),
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intval($this->getWidth()),
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dbesc($this->imageString()),
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intval($scale),
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intval($profile),
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@ -379,10 +333,10 @@ class Photo {
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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dbesc(basename($filename)),
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dbesc($this->type),
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dbesc($this->getType()),
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dbesc($album),
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intval($this->height),
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intval($this->width),
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intval($this->getHeight()),
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intval($this->getWidth()),
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dbesc($this->imageString()),
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intval($scale),
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intval($profile),
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@ -418,13 +372,20 @@ function guess_image_type($filename, $fromcurl=false) {
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$type = $headers['Content-Type'];
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}
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if (is_null($type)){
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$ext = pathinfo($filename, PATHINFO_EXTENSION);
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// Guessing from extension? Isn't that... dangerous?
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/*$ext = pathinfo($filename, PATHINFO_EXTENSION);
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$types = Photo::supportedTypes();
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$type = "image/jpeg";
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foreach ($types as $m=>$e){
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if ($ext==$e) $type = $m;
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}
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}*/
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/**
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* Well, this not much better,
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* but at least it comes from the data inside the image,
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* we won't be tricked by a manipulated extension
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*/
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$image = new Imagick($filename);
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$type = 'image/'. strtolower($image->getImageFormat());
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}
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logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
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return $type;
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@ -451,11 +412,7 @@ function import_profile_photo($photo,$uid,$cid) {
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$filename = basename($photo);
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$img_str = fetch_url($photo,true);
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// guess mimetype from headers or filename
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$type = guess_image_type($photo,true);
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$img = new Photo($img_str, $type);
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$img = new Photo($img_str);
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if($img->is_valid()) {
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$img->scaleImageSquare(175);
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