/**
* Determines from the magic number whether the given InputStream points to an SGI RGB image. The
* given InputStream must return true from markSupported() and support a minimum of two bytes of
* read-ahead.
*/
public static boolean isSGIImage(InputStream in) throws IOException {
if (!(in instanceof BufferedInputStream)) {
in = new BufferedInputStream(in);
}
if (!in.markSupported()) {
throw new IOException(
"Can not test non-destructively whether given InputStream is an SGI RGB image");
}
final DataInputStream dIn = new DataInputStream(in);
dIn.mark(4);
final short magic = dIn.readShort();
dIn.reset();
return (magic == MAGIC);
}
public static FragmentShader load(Class<?> base, String name) {
InputStream in = base.getResourceAsStream(name);
try {
try {
return (parse(new InputStreamReader(in, Utils.ascii)));
} finally {
in.close();
}
} catch (IOException e) {
throw (new RuntimeException(e));
}
}