apps/plugins/imageviewer/image_decoder.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * load image decoder.
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef _IMAGE_DECODER_H
  23 #define _IMAGE_DECODER_H
  24
  25 #include "imageviewer.h"
  26
  27 enum image_type {
  28     IMAGE_UNKNOWN = -1,
  29     IMAGE_BMP = 0,
  30     IMAGE_JPEG,
  31     IMAGE_PNG,
  32 #ifdef HAVE_LCD_COLOR
  33     IMAGE_PPM,
  34 #endif
  35     IMAGE_GIF,
  36     MAX_IMAGE_TYPES
  37 };
  38
  39 struct loader_info {
  40     enum image_type type;
  41     const struct imgdec_api *iv;
  42     unsigned char* buffer;
  43     size_t size;
  44 };
  45
  46 /* Check file type by magic number or file extension */
  47 enum image_type get_image_type(const char *name, bool quiet);
  48 /* Load image decoder */
  49 const struct image_decoder *load_decoder(struct loader_info *loader_info);
  50 /* Release the loaded decoder */
  51 void release_decoder(void);
  52
  53 #endif /* _IMAGE_DECODER_H */