mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-10-14 02:27:39 -04:00
b8238f7b20
Added jpeg decoder jpegp.c using RAINBOW lib. Currently enabled only for pictures not supported by old decoder (as old decoder more optimized for low mem targets) Someone TODO: * Old decoder has optimized downscale logic which new decoder doesn't have (it gives big difference in required memory and time for decoding). This logic should be ported/adapted if possible. * Add smooth downscaling. * Grayscale support Change-Id: Ie96bc62848b51cc6a3942f8e069ec6ab02dc1c56
55 lines
1.6 KiB
C
55 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
|
|
IMAGE_GIF,
|
|
IMAGE_JPEG_PROGRESSIVE,
|
|
|
|
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 */
|