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Andrew Mahone60d42092009-05-01 23:24:23 +00001/***************************************************************************
2* __________ __ ___.
3* Open \______ \ ____ ____ | | _\_ |__ _______ ___
4* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7* \/ \/ \/ \/ \/
8* $Id$
9*
10* JPEG image viewer
11* (This is a real mess if it has to be coded in one single C file)
12*
13* File scrolling addition (C) 2005 Alexander Spyridakis
14* Copyright (C) 2004 Jörg Hohensohn aka [IDC]Dragon
15* Heavily borrowed from the IJG implementation (C) Thomas G. Lane
16* Small & fast downscaling IDCT (C) 2002 by Guido Vollbeding JPEGclub.org
17*
18* This program is free software; you can redistribute it and/or
19* modify it under the terms of the GNU General Public License
20* as published by the Free Software Foundation; either version 2
21* of the License, or (at your option) any later version.
22*
23* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
24* KIND, either express or implied.
25*
26****************************************************************************/
27
28#include "resize.h"
29#include "bmp.h"
30#include "jpeg_common.h"
31
32#ifndef _JPEG_LOAD_H
33#define _JPEG_LOAD_H
34
35int read_jpeg_file(const char* filename,
36 struct bitmap *bm,
37 int maxsize,
38 int format,
39 const struct custom_format *cformat);
40
41int read_jpeg_fd(int fd,
42 struct bitmap *bm,
43 int maxsize,
44 int format,
45 const struct custom_format *cformat);
46
Thomas Martitzf577a6a2011-02-09 20:13:13 +000047/**
48 * read embedded jpeg files as above. Needs an offset and length into
49 * the file
50 **/
51int clip_jpeg_file(const char* filename,
52 int offset,
53 unsigned long jpeg_size,
54 struct bitmap *bm,
55 int maxsize,
56 int format,
57 const struct custom_format *cformat);
58
59/**
60 * read embedded jpeg files as above. Needs an open file descripter, and
61 * assumes the caller has lseek()'d to the start of the jpeg blob
62 **/
63int clip_jpeg_fd(int fd,
64 unsigned long jpeg_size,
65 struct bitmap *bm,
66 int maxsize,
67 int format,
68 const struct custom_format *cformat);
69
Andrew Mahone60d42092009-05-01 23:24:23 +000070#endif /* _JPEG_JPEG_DECODER_H */