/**
* Config must provide the following keys:
* - server: ActiveMQ server to connect to. Messages go into an in-memory
* queue if the server name is "__test__".
* @return: null, as the rendition is generated asynchronously.
*/
public static function render($source, $target, $assetFile, $config)
{
$bucket = $config['_bucket'];
$queue = $config['queue'];
$message = array('asset' => $assetFile, 'config' => $config, 'bucket' => $bucket, 'tstamp' => time());
if ($queue == '__test__') {
array_push(self::$messages, $message);
} else {
$log = new api_log();
$log->debug("Queueing message: {$assetFile}");
$conn = new Amazon_SQS_Client($config['access_id'], $config['secret_key']);
$response = $conn->sendMessage(array('QueueName' => $queue, 'MessageBody' => json_encode($message)));
$result = $response->getSendMessageResult();
$log->debug("Queued message ID %s for asset file %s", $result->getMessageId(), $assetFile);
}
}
/**
* Convert a PDF/EPS to JPG/PNG.
*
* @param $from: File path to the original file.
* @param $to: File path where the new file should be saved.
* @param $format: Format to convert to.
*/
protected static function convert($from, $to, $format)
{
$cmd = binarypool_config::getUtilityPath('pdfconverter');
$cmd .= ' -f ' . $format;
$cmd .= ' ' . escapeshellarg($from) . ' ' . escapeshellarg($to);
$log = new api_log();
$log->debug("Rendering PDF with command: {$cmd}");
shell_exec($cmd);
}
protected static function convert($from, $to)
{
$cmd = binarypool_config::getUtilityPath('convert');
$cmd .= ' -density 288 -resize 220 +antialias';
# Make sure all output images are in RGB. This handles incoming CMYK
# images which some browsers can't display.
$cmd .= ' -colorspace RGB -trim ';
$cmd .= escapeshellarg($from) . ' ' . escapeshellarg($to);
$log = new api_log();
$log->debug("Converting PDF/EPS image using command: {$cmd}");
shell_exec($cmd);
}
/**
* Convert a picture to a different format and/or resize it.
*
* @param $from: File path to the original file.
* @param $to: File path where the new file should be saved.
* @param $mime: MIME type of the original image.
* @param $maxWidth: Maximum width of the new image. No resizing
* is done if this is empty. Can be used without
* specifying maxHeight.
* @param $maxHeight: Maximum height of the new image. Must be
* used together with $maxWidth.
*/
protected static function convert($from, $to, $mime, $maxWidth = '', $maxHeight = '')
{
$cmd = binarypool_config::getUtilityPath('convert');
# Make sure all output images are in RGB. This handles incoming CMYK
# images which some browsers can't display.
$cmd .= ' -colorspace RGB';
switch ($mime) {
case 'image/pdf':
case 'application/pdf':
$cmd .= ' -trim';
break;
case 'image/gif':
break;
default:
$cmd .= ' -flatten';
break;
}
if ($maxWidth != '') {
$scale = intval($maxWidth);
if ($maxHeight != '') {
$scale .= 'x' . intval($maxHeight);
# Don't enlarge if the size is already smaller than resized version
$scale .= '>';
}
$cmd .= ' -resize ' . escapeshellarg($scale) . '';
}
if ($mime == 'image/jpeg') {
# Sharpen image
$cmd .= ' -unsharp 0.5x1';
}
$cmd = $cmd . ' ' . escapeshellarg($from) . ' ' . escapeshellarg($to);
$log = new api_log();
$log->debug("Resizing image using command: {$cmd}");
shell_exec($cmd);
}
