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Better image processing. Add support for GraphicsMagick (a fork of ImageMagick) and exiftool (for stripping EXIF metadata quickly).

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This commit is contained in:
Michael Foster 2013-08-03 20:34:59 -04:00
parent a3fbff2259
commit 5300ffadf1
4 changed files with 104 additions and 29 deletions
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55
inc/image.php
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@ -19,7 +19,7 @@ class Image {
if ($config['thumb_method'] == 'imagick') {
$classname = 'ImageImagick';
} elseif ($config['thumb_method'] == 'convert' || $config['thumb_method'] == 'convert+gifsicle') {
} elseif (in_array($config['thumb_method'], array('convert', 'convert+gifsicle', 'gm', 'gm+gifsicle'))) {
$classname = 'ImageConvert';
} else {
$classname = 'Image' . strtoupper($this->format);
@ -44,8 +44,6 @@ class Image {
public function resize($extension, $max_width, $max_height) {
global $config;
$gifsicle = false;
if ($config['thumb_method'] == 'imagick') {
$classname = 'ImageImagick';
@ -54,6 +52,13 @@ class Image {
} elseif ($config['thumb_method'] == 'convert+gifsicle') {
$classname = 'ImageConvert';
$gifsicle = true;
} elseif ($config['thumb_method'] == 'gm') {
$classname = 'ImageConvert';
$gm = true;
} elseif ($config['thumb_method'] == 'gm+gifsicle') {
$classname = 'ImageConvert';
$gm = true;
$gifsicle = true;
} else {
$classname = 'Image' . strtoupper($extension);
if (!class_exists($classname)) {
@ -81,7 +86,6 @@ class Image {
$height = $max_height;
}
$thumb->gifsicle = $gifsicle;
$thumb->_resize($this->image->image, $width, $height);
return $thumb;
@ -227,15 +231,20 @@ class ImageImagick extends ImageBase {
class ImageConvert extends ImageBase {
public $width, $height, $temp, $gifsicle;
public $width, $height, $temp, $gm = false, $gifsicle = false;
public function init() {
global $config;
if ($config['thumb_method'] == 'gm' || $config['thumb_method'] == 'gm+gifsicle')
$this->gm = true;
if ($config['thumb_method'] == 'convert+gifsicle' || $config['thumb_method'] == 'gm+gifsicle')
$this->gifsicle = true;
$this->temp = false;
}
public function from() {
$size = trim(shell_exec('identify -format "%w %h" ' . escapeshellarg($this->src . '[0]')));
public function from() {
$size = shell_exec_error(($this->gm ? 'gm ' : '') . 'identify -format "%w %h" ' . escapeshellarg($this->src . '[0]'));
if (preg_match('/^(\d+) (\d+)$/', $size, $m)) {
$this->width = $m[1];
$this->height = $m[2];
@ -251,9 +260,17 @@ class ImageConvert extends ImageBase {
if (!$this->temp) {
if ($config['strip_exif']) {
shell_exec('convert ' . escapeshellarg($this->src) . ' -auto-orient -strip ' . escapeshellarg($src));
if($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
escapeshellarg($this->src) . ' -auto-orient -strip ' . escapeshellarg($src))) {
$this->destroy();
error('Failed to resize image!', null, $error);
}
} else {
shell_exec('convert ' . escapeshellarg($this->src) . ' -auto-orient ' . escapeshellarg($src));
if($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
escapeshellarg($this->src) . ' -auto-orient ' . escapeshellarg($src))) {
$this->destroy();
error('Failed to resize image!', null, $error);
}
}
} else {
rename($this->temp, $src);
@ -289,13 +306,25 @@ class ImageConvert extends ImageBase {
escapeshellarg($this->temp) . '2>&1 &&echo $?') !== '0') || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
} else {
if (trim($error = shell_exec('convert ' . sprintf($config['convert_args'], '', $this->width, $this->height) . ' ' .
escapeshellarg($this->src) . ' ' . escapeshellarg($this->temp) . ' 2>&1 &&echo $?')) !== '0' || !file_exists($this->temp))
if ($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($config['convert_args'],
$this->width,
$this->height,
escapeshellarg($this->src),
$this->width,
$this->height,
escapeshellarg($this->temp))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
}
} else {
if (trim($error = shell_exec('convert ' . sprintf($config['convert_args'], '-flatten', $this->width, $this->height) . ' ' .
escapeshellarg($this->src . '[0]') . " " . escapeshellarg($this->temp) . ' 2>&1 &&echo $?')) !== '0' || !file_exists($this->temp))
if ($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($config['convert_args'],
$this->width,
$this->height,
escapeshellarg($this->src . '[0]'),
$this->width,
$this->height,
escapeshellarg($this->temp))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
}
}