/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

/* -*- Mode: C; tab-width: 4 -*-
 *  il_strm.h --- Stream converters for the image library.
 *  $Id: il_strm.h,v 3.1 1998/03/28 03:34:57 ltabb Exp $
 */


/******************** Identifiers for standard image types. ******************/
#define IL_UNKNOWN 0
#define IL_GIF     1
#define IL_XBM     2
#define IL_JPEG    3
#define IL_PPM     4
#define IL_PNG     5

#define IL_NOTFOUND 256


/********************** Opaque reference to MWContext. ***********************/
#ifdef IL_INTERNAL              /* If used within the Image Library. */
#define OPAQUE_CONTEXT void
#else
#define OPAQUE_CONTEXT MWContext /* The old MWContext. */
#endif /* IL_INTERNAL */

/********************** Image Library stream converters. *********************/
extern int IL_DisplayMemCacheInfoAsHTML(FO_Present_Types format_out,
                                        URL_Struct *urls,
                                        OPAQUE_CONTEXT *net_cx);

/********************** Image Library stream converters. *********************/
XP_BEGIN_PROTOS

/* The standard converter for all types of images which are part of an HTML
   document. */
extern NET_StreamClass * IL_NewStream (FO_Present_Types format_out,
                                       void *data_obj,
                                       URL_Struct *urls,
                                       OPAQUE_CONTEXT *cx);

/* The converter used to handle images which are viewed by themselves e.g.
   http://home.netscape.com/foo.gif.  This generates a fake
   HTML document, and ships it off to the parser. */
extern NET_StreamClass * IL_ViewStream (FO_Present_Types format_out,
                                        void *data_obj,
                                        URL_Struct *urls,
                                        OPAQUE_CONTEXT *cx);
XP_END_PROTOS