1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
<?php
namespace Zotlabs\Photo;
/**
* @brief ImageMagick photo driver.
*/
class PhotoImagick extends PhotoDriver {
public function supportedTypes() {
return [
'image/jpeg' => 'jpg',
'image/png' => 'png',
'image/gif' => 'gif',
];
}
private function get_FormatsMap() {
return [
'image/jpeg' => 'JPG',
'image/png' => 'PNG',
'image/gif' => 'GIF',
];
}
protected function load($data, $type) {
$this->valid = false;
$this->image = new \Imagick();
if(! $data)
return;
try {
$this->image->readImageBlob($data);
} catch(\Exception $e) {
logger('Imagick readImageBlob() exception:' . print_r($e, true));
return;
}
/*
* Setup the image to the format it will be saved to
*/
$map = $this->get_FormatsMap();
$format = $map[$type];
if($this->image) {
$this->image->setFormat($format);
// Always coalesce, if it is not a multi-frame image it won't hurt anyway
$this->image = $this->image->coalesceImages();
$this->valid = true;
$this->setDimensions();
/*
* setup the compression here, so we'll do it only once
*/
switch($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);
default:
break;
}
}
}
protected function destroy() {
if($this->is_valid()) {
$this->image->clear();
$this->image->destroy();
}
}
protected function setDimensions() {
$this->width = $this->image->getImageWidth();
$this->height = $this->image->getImageHeight();
}
/**
* @brief Strips the image of all profiles and comments.
*
* Keep ICC profile for better colors.
*
* @see \Zotlabs\Photo\PhotoDriver::clearexif()
*/
public function clearexif() {
$profiles = $this->image->getImageProfiles('icc', true);
$this->image->stripImage();
if(! empty($profiles)) {
$this->image->profileImage('icc', $profiles['icc']);
}
}
/**
* @brief Return a \Imagick object of the current image.
*
* @see \Zotlabs\Photo\PhotoDriver::getImage()
*
* @return boolean|\Imagick
*/
public function getImage() {
if(! $this->is_valid())
return false;
$this->image = $this->image->deconstructImages();
return $this->image;
}
public function doScaleImage($dest_width, $dest_height) {
/*
* 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
$this->image->setFirstIterator();
do {
$this->image->scaleImage($dest_width, $dest_height);
} while($this->image->nextImage());
$this->setDimensions();
}
public function rotate($degrees) {
if(! $this->is_valid())
return false;
$this->image->setFirstIterator();
do {
// ImageMagick rotates in the opposite direction of imagerotate()
$this->image->rotateImage(new \ImagickPixel(), -$degrees);
} while($this->image->nextImage());
$this->setDimensions();
}
public function flip($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());
$this->setDimensions(); // Shouldn't really be necessary
}
public function cropImage($max,$x,$y,$w,$h) {
if(!$this->is_valid())
return false;
$this->image->setFirstIterator();
do {
$this->image->cropImage($w, $h, $x, $y);
/*
* We need to remove the canvas,
* 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());
$this->doScaleImage($max, $max);
}
public function cropImageRect($maxx, $maxy, $x, $y, $w, $h) {
if(! $this->is_valid())
return false;
$this->image->setFirstIterator();
do {
$this->image->cropImage($w, $h, $x, $y);
/*
* We need to remove the canvas,
* 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());
$this->doScaleImage($maxx, $maxy);
}
public function imageString() {
if(! $this->is_valid())
return false;
/* Clean it */
$this->image = $this->image->deconstructImages();
return $this->image->getImagesBlob();
}
}
|
