(***********************************************************************)
(*                                                                     *)
(*                           Objective Caml                            *)
(*                                                                     *)
(*            Jun Furuse, projet Cristal, INRIA Rocquencourt           *)
(*                                                                     *)
(*  Copyright 1999-2004,                                               *)
(*  Institut National de Recherche en Informatique et en Automatique.  *)
(*  Distributed only by permission.                                    *)
(*                                                                     *)
(***********************************************************************)

(* $Id: converter.ml,v 1.11 2004/09/21 18:15:41 weis Exp $ *)

open Images;;
open OImages;;
open Info;;

let files = ref [] in
Arg.parse [] (fun s -> files := s :: !files) "converter src dst";
let src, dst =
  match List.rev !files with
  | [src; dst] -> src, dst
  | _ -> invalid_arg "you need two arguments" in

let src = OImages.load src [] in

let saver src = src#save dst None [] in
try saver src with
| Wrong_image_type ->
  (* try to use another color model *)
  let src' =
    match OImages.tag src with
    | Rgb24 img -> invalid_arg "Sorry! No color reduction is implemented"
    | Index8 img -> img#to_rgb24#coerce
    | Index16 img -> img#to_rgb24#coerce
    | _ -> invalid_arg "not supported" in
  saver src';;