71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* JPEG image viewer
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* (This is a real mess if it has to be coded in one single C file)
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*
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* File scrolling addition (C) 2005 Alexander Spyridakis
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* Copyright (C) 2004 Jörg Hohensohn aka [IDC]Dragon
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* Heavily borrowed from the IJG implementation (C) Thomas G. Lane
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* Small & fast downscaling IDCT (C) 2002 by Guido Vollbeding JPEGclub.org
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "resize.h"
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#include "bmp.h"
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#include "jpeg_common.h"
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#ifndef _JPEG_LOAD_H
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#define _JPEG_LOAD_H
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int read_jpeg_file(const char* filename,
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struct bitmap *bm,
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int maxsize,
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int format,
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const struct custom_format *cformat);
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int read_jpeg_fd(int fd,
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struct bitmap *bm,
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int maxsize,
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int format,
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const struct custom_format *cformat);
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/**
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* read embedded jpeg files as above. Needs an offset and length into
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* the file
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**/
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int clip_jpeg_file(const char* filename,
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int offset,
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unsigned long jpeg_size,
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struct bitmap *bm,
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int maxsize,
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int format,
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const struct custom_format *cformat);
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/**
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* read embedded jpeg files as above. Needs an open file descripter, and
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* assumes the caller has lseek()'d to the start of the jpeg blob
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**/
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int clip_jpeg_fd(int fd,
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unsigned long jpeg_size,
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struct bitmap *bm,
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int maxsize,
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int format,
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const struct custom_format *cformat);
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#endif /* _JPEG_JPEG_DECODER_H */
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