/*
 * Photo Image Print System
 * Copyright (C) 2000-2004 EPSON KOWA Corporation.
 * Copyright (C) SEIKO EPSON CORPORATION 2000-2004.
 *
 *  This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * As a special exception, EPSON KOWA Corporation gives permission to
 * link the code of this program with libraries which are covered by
 * the EPSON KOWA PUBLIC LICENCE and distribute their linked
 * combinations.  You must obey the GNU General Public License in all
 * respects for all of the code used other than the libraries which
 * are covered by EPSON KOWA PUBLIC LICENCE.
 */
#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#ifndef PF_PNG_EXT_H
#define PF_PNG_EXT_H

#include "pfpng.h"

extern void *dl_handle_libpng;

extern lib_png_access_version_number  *dl_png_access_version_number;
extern lib_png_create_info_struct     *dl_png_create_info_struct;
extern lib_png_create_read_struct     *dl_png_create_read_struct;
extern lib_png_destroy_read_struct    *dl_png_destroy_read_struct;
extern lib_png_get_IHDR               *dl_png_get_IHDR;
extern lib_png_get_valid              *dl_png_get_valid;
extern lib_png_init_io                *dl_png_init_io;
extern lib_png_read_end               *dl_png_read_end;
extern lib_png_read_info              *dl_png_read_info;
extern lib_png_read_rows              *dl_png_read_rows;
extern lib_png_read_update_info       *dl_png_read_update_info;
extern lib_png_set_expand             *dl_png_set_expand;
extern lib_png_set_gray_to_rgb        *dl_png_set_gray_to_rgb;
extern lib_png_set_interlace_handling *dl_png_set_interlace_handling;
extern lib_png_set_packing            *dl_png_set_packing;
extern lib_png_set_rgb_to_gray        *dl_png_set_rgb_to_gray;
extern lib_png_set_sig_bytes          *dl_png_set_sig_bytes;
extern lib_png_set_strip_16           *dl_png_set_strip_16;
extern lib_png_set_strip_alpha        *dl_png_set_strip_alpha;
extern lib_png_sig_cmp                *dl_png_sig_cmp;

void * open_png_library (void);
void close_png_library (void);

#endif /* PF_PNG_EXT_H */