/**
* Resize an image (GDLib)
*
* @access public
* @param string Source Filename to resize
* @param string Target file
* @param int New width
* @return int New height (can be autodetected)
* @return array New image size
*/
function serendipity_resize_image_gd($infilename, $outfilename, $newwidth, $newheight = null)
{
$func = serendipity_functions_gd($infilename);
if (!is_array($func)) {
return false;
}
$in = $func['load']($infilename);
$width = imagesx($in);
$height = imagesy($in);
if (is_null($newheight)) {
$newsizes = serendipity_calculate_aspect_size($width, $height, $newwidth, 'width');
$newwidth = $newsizes[0];
$newheight = $newsizes[1];
}
if (is_null($newwidth)) {
$newsizes = serendipity_calculate_aspect_size($width, $height, $newheight, 'height');
$newwidth = $newsizes[0];
$newheight = $newsizes[1];
}
$out = imagecreatetruecolor($newwidth, $newheight);
/* Attempt to copy transparency information, this really only works for PNG */
if (function_exists('imagesavealpha')) {
imagealphablending($out, false);
imagesavealpha($out, true);
}
imagecopyresampled($out, $in, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
@umask(00);
touch($outfilename);
// safe_mode requirement
$func['save']($out, $outfilename, $func['qual']);
@chmod($outfilename, 0664);
$out = null;
$in = null;
return array($newwidth, $newheight);
}
/**
* Resize an image (GDLib)
*
* @access public
* @param string Source Filename to resize
* @param string Target file
* @param int New width
* @return int New height (can be autodetected)
* @return array New image size
*/
function serendipity_resize_image_gd($infilename, $outfilename, $newwidth, $newheight = null)
{
$func = serendipity_functions_gd($infilename);
if (!is_array($func)) {
return false;
}
try {
// if an image exist that can not be loaded (invalid gif for example), the page shall still be rendered
$in = $func['load']($infilename);
} catch (Exception $e) {
echo 'Could not create thumbnail: ', $e->getMessage(), "\n";
return false;
}
$width = imagesx($in);
$height = imagesy($in);
if (is_null($newheight)) {
$newsizes = serendipity_calculate_aspect_size($width, $height, $newwidth, 'width');
$newwidth = $newsizes[0];
$newheight = $newsizes[1];
}
if (is_null($newwidth)) {
$newsizes = serendipity_calculate_aspect_size($width, $height, $newheight, 'height');
$newwidth = $newsizes[0];
$newheight = $newsizes[1];
}
$out = imagecreatetruecolor($newwidth, $newheight);
/* Attempt to copy transparency information, this really only works for PNG */
if (function_exists('imagesavealpha')) {
imagealphablending($out, false);
imagesavealpha($out, true);
}
imagecopyresampled($out, $in, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
@umask(00);
touch($outfilename);
// safe_mode requirement
$func['save']($out, $outfilename, $func['qual']);
@chmod($outfilename, 0664);
$out = null;
$in = null;
return array($newwidth, $newheight);
}