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fixes regression in createthumb.php, adds readability

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Jan Niggemann 2015-02-23 16:17:21 +01:00
parent 6cf6beb978
commit 4b7ce9dbec
1 changed files with 33 additions and 15 deletions
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48
createthumb.php
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@ -124,23 +124,41 @@ else
}
// Rotate JPG pictures
// for more info on orientation see
// http://www.daveperrett.com/articles/2012/07/28/exif-orientation-handling-is-a-ghetto/
$degrees = 0;
$flip = '';
if ($get_filename_type == "JPG")
{
if (function_exists('exif_read_data') && function_exists('imagerotate'))
{
$exif = exif_read_data($get_filename, 0, true);
if (isset($exif['IFD0']) && isset($exif['IFD0']['Orientation']))
$ort = $exif['IFD0']['Orientation'];
else
$ort = 0;
// for more info on orientation see
// http://www.daveperrett.com/articles/2012/07/28/exif-orientation-handling-is-a-ghetto/
$ort2deg = array(3=>180, 4=>180, 5=>270, 6=>270, 7=>90, 8=>90);
$degrees = in_array($ort, $ort2deg) ? $ort2deg[$ort] : 0;
$ort2flip = array(2, 4, 5, 7);
$flip = in_array($ort, $flip2deg) ? 'vertical' : '';
if (preg_match("/.jpg$|.jpeg$/i", $_GET['filename'])) {
if (function_exists('exif_read_data') && function_exists('imagerotate')) {
$exif = exif_read_data($_GET['filename'], 0, true);
$ort = $exif['IFD0']['Orientation'];
switch ($ort) {
case 3: // 180 rotate right
$degrees = 180;
break;
case 6: // 90 rotate right
$degrees = 270;
break;
case 8: // 90 rotate left
$degrees = 90;
break;
case 2: // flip vertical
$flip = 'vertical';
break;
case 7: // flipped
$degrees = 90;
$flip = 'vertical';
break;
case 5: // flipped
$degrees = 270;
$flip = 'vertical';
break;
case 4: // flipped
$degrees = 180;
$flip = 'vertical';
break;
}
}
}