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Merge pull request #403 from CyberDomovoy/Imagick

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Imagick
This commit is contained in:
friendica 2012-07-22 15:36:42 -07:00
commit c455e623bb
1 changed files with 71 additions and 66 deletions
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131
include/Photo.php
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@ -4,7 +4,6 @@ if(! class_exists("Photo")) {
class Photo {
private $image;
private $ext;
/**
* Put back gd stuff, not everybody have Imagick
@ -41,22 +40,53 @@ class Photo {
public function __construct($data, $type=null) {
$this->imagick = class_exists('Imagick');
$this->types = $this->supportedTypes();
if (!array_key_exists($type,$this->types)){
$type='image/jpeg';
}
$this->type = $type;
if($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();
/**
* Setup the image to the format it will be saved to
*/
$map = $this->get_FormatsMap();
$format = $map[$type];
$this->image->setFormat($format);
$this->ext = strtolower($this->image->getImageFormat());
} else {
$this->types = $this->supportedTypes();
if (!array_key_exists($type,$this->types)){
$type='image/jpeg';
// Always coalesce, if it is not a multi-frame image it won't hurt anyway
$this->image = $this->image->coalesceImages();
/**
* setup the compression here, so we'll do it only once
*/
switch($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;
$this->image->setCompressionQuality($quality);
break;
case "image/jpeg":
$quality = get_config('system','jpeg_quality');
if((! $quality) || ($quality > 100))
$quality = JPEG_QUALITY;
$this->image->setCompressionQuality($quality);
}
} else {
$this->valid = false;
$this->type = $type;
$this->image = @imagecreatefromstring($data);
if($this->image !== FALSE) {
$this->width = imagesx($this->image);
@ -83,6 +113,18 @@ class Photo {
return $this->imagick;
}
/**
* Maps Mime types to Imagick formats
*/
public function get_FormatsMap() {
$m = array(
'image/jpeg' => 'JPG',
'image/png' => 'PNG',
'image/gif' => 'GIF'
);
return $m;
}
public function is_valid() {
if($this->is_imagick())
return ($this->image !== FALSE);
@ -111,8 +153,8 @@ class Photo {
if(!$this->is_valid())
return FALSE;
/* Clean it */
if($this->is_imagick()) {
/* Clean it */
$this->image = $this->image->deconstructImages();
return $this->image;
}
@ -123,10 +165,6 @@ class Photo {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
// This should do the trick (see supportedTypes above)
return 'image/'. $this->getExt();
}
return $this->type;
}
@ -134,9 +172,7 @@ class Photo {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->ext;
return $this->types[$this->type];
return $this->types[$this->getType()];
}
public function scaleImage($max) {
@ -148,7 +184,7 @@ class Photo {
* 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
// Don't forget to go back to the first frame
$this->image->setFirstIterator();
do {
$this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, true);
@ -365,7 +401,7 @@ class Photo {
if($this->is_imagick()) {
$this->image->setFirstIterator();
do {
$this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, false);
$this->image->resizeImage($dim, $dim, imagick::FILTER_LANCZOS, 1, false);
} while ($this->image->nextImage());
return;
}
@ -425,59 +461,32 @@ class Photo {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
/* Clean it */
$this->image = $this->image->deconstructImages();
$string = $this->image->getImagesBlob();
return $string;
}
$quality = FALSE;
/**
* Hmmm, for Imagick
* we should do the conversion/compression at the initialisation i think
* This method may be called several times,
* and there is no need to do that more than once
*/
if(!$this->is_imagick()) ob_start();
ob_start();
switch($this->getType()){
case "image/png":
$quality = get_config('system','png_quality');
if((! $quality) || ($quality > 9))
$quality = PNG_QUALITY;
if($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, $quality);
imagepng($this->image,NULL, $quality);
break;
case "image/gif":
// We change nothing here, do we?
break;
default:
// Convert to jpeg by default
case "image/jpeg":
$quality = get_config('system','jpeg_quality');
if((! $quality) || ($quality > 100))
$quality = JPEG_QUALITY;
if($this->is_imagick())
$this->image->setImageFormat('jpeg');
else imagejpeg($this->image,NULL,$quality);
imagejpeg($this->image,NULL,$quality);
}
if($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();
}
return $string;
}
@ -594,14 +603,14 @@ function guess_image_type($filename, $fromcurl=false) {
}
if (is_null($type)){
// Guessing from extension? Isn't that... dangerous?
if($this->is_imagick()) {
if(class_exists('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());
$type = $image->getImageMimeType();
} else {
$ext = pathinfo($filename, PATHINFO_EXTENSION);
$types = Photo::supportedTypes();
@ -636,11 +645,7 @@ function import_profile_photo($photo,$uid,$cid) {
$filename = basename($photo);
$img_str = fetch_url($photo,true);
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()) {