putenv('LD_LIBRARY_PATH=/petabox/sw/lib/kakadu');
$unzipCmd = 'unzip -p ' . escapeshellarg($zipPath) . ' ' . escapeshellarg($file);
if ('jp2' == $fileExt) {
$decompressCmd = " | /petabox/sw/bin/kdu_expand -no_seek -quiet -reduce {$powReduce} -i /dev/stdin -o " . $stdoutLink;
if ($decompressToBmp) {
$decompressCmd .= ' | bmptopnm ';
}
} else {
if ('tif' == $fileExt) {
// We need to create a temporary file for tifftopnm since it cannot
// work on a pipe (the file must be seekable).
// We use the GnuBookTiff prefix to give a hint in case things don't
// get cleaned up.
$tempFile = tempnam("/tmp", "GnuBookTiff");
if (1 != $scale) {
if (onPowerNode()) {
$pbmReduce = ' | pnmscale -reduce ' . $scale;
} else {
$pbmReduce = ' | pnmscale -nomix -reduce ' . $scale;
}
} else {
$pbmReduce = '';
}
$decompressCmd = ' > ' . $tempFile . ' ; tifftopnm ' . $tempFile . ' 2>/dev/null' . $pbmReduce;
} else {
GBfatal('Unknown source file extension: ' . $fileExt);
}
}
// Non-integer scaling is currently disabled on the cluster
// if (isset($_REQUEST['height'])) {
// $cmd .= " | pnmscale -height {$_REQUEST['height']} ";
function reduceCommand($scale)
{
if (1 != $scale) {
if (onPowerNode()) {
return ' | pnmscale -reduce ' . $scale;
} else {
return ' | pnmscale -nomix -reduce ' . $scale;
}
} else {
return '';
}
}
