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Fix for instances with old GraphicsMagick or ImageMagick versions (no -auto-orient).

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This commit is contained in:
Michael Foster 2013-08-03 22:14:25 -04:00
parent 486eccba2e
commit ac4306555b
5 changed files with 97 additions and 13 deletions
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87
inc/image.php
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@ -320,19 +320,23 @@ class ImageConvert extends ImageBase {
if ($this->format == 'gif' && ($config['thumb_ext'] == 'gif' || $config['thumb_ext'] == '') && $config['thumb_keep_animation_frames'] > 1) {
if ($this->gifsicle) {
if (trim($error = shell_exec("gifsicle --unoptimize -O2 --resize {$this->width}x{$this->height} < " .
if (($error = shell_exec_error("gifsicle --unoptimize -O2 --resize {$this->width}x{$this->height} < " .
escapeshellarg($this->src . '') . " \"#0-{$config['thumb_keep_animation_frames']}\" > " .
escapeshellarg($this->temp) . '2>&1 &&echo $?') !== '0') || !file_exists($this->temp))
escapeshellarg($this->temp))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
} else {
if ($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($config['convert_args'],
if ($config['convert_manual_orient'])
$convert_args = str_replace('-auto-orient', ImageConvert::jpeg_exif_orientation($this->src), $config['convert_args']);
else
$convert_args = &$config['convert_args'];
if (($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($convert_args,
$this->width,
$this->height,
escapeshellarg($this->src),
$this->width,
$this->height,
escapeshellarg($this->temp))) || !file_exists($this->temp))
escapeshellarg($this->temp)))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
if ($size = $this->get_size($this->temp)) {
$this->width = $size[0];
@ -340,14 +344,18 @@ class ImageConvert extends ImageBase {
}
}
} else {
if ($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($config['convert_args'],
if ($config['convert_manual_orient'])
$convert_args = str_replace('-auto-orient', ImageConvert::jpeg_exif_orientation($this->src), $config['convert_args']);
else
$convert_args = &$config['convert_args'];
if (($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($convert_args,
$this->width,
$this->height,
escapeshellarg($this->src . '[0]'),
$this->width,
$this->height,
escapeshellarg($this->temp))) || !file_exists($this->temp))
escapeshellarg($this->temp)))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
if ($size = $this->get_size($this->temp)) {
$this->width = $size[0];
@ -355,6 +363,69 @@ class ImageConvert extends ImageBase {
}
}
}
// For when -auto-orient doesn't exist (older versions)
static public function jpeg_exif_orientation($src, $exif = false) {
if (!$exif) {
$exif = exif_read_data($src);
if (!isset($exif['Orientation']))
return false;
}
switch($exif['Orientation']) {
case 1:
// Normal
return false;
case 2:
// 888888
// 88
// 8888
// 88
// 88
return '-flop';
case 3:
// 88
// 88
// 8888
// 88
// 888888
return '-flip -flop';
case 4:
// 88
// 88
// 8888
// 88
// 888888
return '-flip';
case 5:
// 8888888888
// 88 88
// 88
return '-rotate 90 -flop';
case 6:
// 88
// 88 88
// 8888888888
return '-rotate 90';
case 7:
// 88
// 88 88
// 8888888888
return '-rotate "-90" -flop';
case 8:
// 8888888888
// 88 88
// 88
return '-rotate "-90"';
}
}
}
class ImagePNG extends ImageBase {