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gd is back in the game as a fallback: not everybody can have Imagick.

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This commit is contained in:
Domovoy 2012-07-22 13:43:46 +02:00
parent 6608cc5018
commit 6c2cd91184
1 changed files with 316 additions and 87 deletions
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255
include/Photo.php
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@ -6,10 +6,21 @@ 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() {
if(class_exists('Imagick')) {
/**
* Imagick::queryFormats won't help us a lot there...
* At least, not yet, other parts of friendica uses this array
@ -19,10 +30,19 @@ class Photo {
'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) {
$this->imagick = class_exists('Imagick');
if($this->is_imagick()) {
$this->image = new Imagick();
$this->image->readImageBlob($data);
@ -30,31 +50,61 @@ class Photo {
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) {
if($this->is_imagick()) {
$this->image->clear();
$this->image->destroy();
return;
}
imagedestroy($this->image);
}
}
public function is_imagick() {
return $this->imagick;
}
public function is_valid() {
if($this->is_imagick())
return ($this->image !== FALSE);
return $this->valid;
}
public function getWidth() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->image->getImageWidth();
return $this->width;
}
public function getHeight() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->image->getImageHeight();
return $this->height;
}
public function getImage() {
@ -62,29 +112,38 @@ class Photo {
return FALSE;
/* Clean it */
if($this->is_imagick()) {
$this->image = $this->image->deconstructImages();
return $this->image;
}
return $this->image;
}
public function getType() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
// This should do the trick (see supportedTypes above)
return 'image/'. $this->getExt();
}
return $this->type;
}
public function getExt() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->ext;
return $this->types[$this->type];
}
public function scaleImage($max) {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
/**
* If it is not animated, there will be only one iteration here,
* so don't bother checking
@ -94,27 +153,101 @@ class Photo {
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;
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;
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(!$this->is_valid())
return FALSE;
if($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);
}
@ -192,6 +387,7 @@ class Photo {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
$this->image->setFirstIterator();
do {
$this->image->cropImage($w, $h, $x, $y);
@ -202,7 +398,19 @@ class Photo {
*/
$this->image->setImagePage(0, 0, 0, 0);
} while ($this->image->nextImage());
$this->scaleImage($max);
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) {
@ -220,16 +428,20 @@ 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))
$quality = PNG_QUALITY;
if($this->is_imagick()) {
/**
* From http://www.imagemagick.org/script/command-line-options.php#quality:
*
@ -239,8 +451,9 @@ class Photo {
* 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:
@ -248,9 +461,12 @@ class Photo {
$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,$quality);
}
if($this->is_imagick()) {
if($quality !== FALSE) {
// Do we need to iterate for animations?
$this->image->setImageCompressionQuality($quality);
@ -258,6 +474,11 @@ class Photo {
}
$string = $this->image->getImagesBlob();
} else {
$string = ob_get_contents();
ob_end_clean();
}
return $string;
}
@ -373,12 +594,7 @@ function guess_image_type($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 = $m;
}*/
if($this->is_imagick()) {
/**
* Well, this not much better,
* but at least it comes from the data inside the image,
@ -386,6 +602,14 @@ function guess_image_type($filename, $fromcurl=false) {
*/
$image = new Imagick($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);