rockbox/apps/plugins/imageviewer/image_decoder.h
Teruaki Kawashima 68cc564c9b FS#11819: image viewer: use magick number in file to determine image type.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29110 a1c6a512-1295-4272-9138-f99709370657
2011-01-22 13:41:53 +00:00

52 lines
1.6 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* load image decoder.
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _IMAGE_DECODER_H
#define _IMAGE_DECODER_H
#include "imageviewer.h"
enum image_type {
IMAGE_UNKNOWN = -1,
IMAGE_BMP = 0,
IMAGE_JPEG,
IMAGE_PNG,
#ifdef HAVE_LCD_COLOR
IMAGE_PPM,
#endif
MAX_IMAGE_TYPES
};
struct loader_info {
enum image_type type;
const struct imgdec_api *iv;
unsigned char* buffer;
size_t size;
};
/* Check file type by magic number or file extension */
enum image_type get_image_type(const char *name, bool quiet);
/* Load image decoder */
const struct image_decoder *load_decoder(struct loader_info *loader_info);
/* Release the loaded decoder */
void release_decoder(void);
#endif /* _IMAGE_DECODER_H */