0ceaff2b65
This adds ability to view gif images in rockbox. Works both on color and gray/monochrome targets (greylib). Aspect correction is supported as well. Limitations: - animated gifs are restricted to 32 frames - animated gifs loop always (loopcount is ignored) - plain text extension is not supported - animated gifs with interframe delay = 0 are treated as still images (web browsers usually treat delay 0 as 100ms to prevent exhaustive CPU load by such images) Change-Id: I61501f801ddcd403410e38d83e6bddc9883e7ede
53 lines
1.6 KiB
C
53 lines
1.6 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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* load image decoder.
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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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#ifndef _IMAGE_DECODER_H
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#define _IMAGE_DECODER_H
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#include "imageviewer.h"
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enum image_type {
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IMAGE_UNKNOWN = -1,
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IMAGE_BMP = 0,
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IMAGE_JPEG,
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IMAGE_PNG,
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#ifdef HAVE_LCD_COLOR
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IMAGE_PPM,
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#endif
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IMAGE_GIF,
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MAX_IMAGE_TYPES
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};
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struct loader_info {
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enum image_type type;
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const struct imgdec_api *iv;
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unsigned char* buffer;
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size_t size;
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};
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/* Check file type by magic number or file extension */
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enum image_type get_image_type(const char *name, bool quiet);
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/* Load image decoder */
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const struct image_decoder *load_decoder(struct loader_info *loader_info);
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/* Release the loaded decoder */
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void release_decoder(void);
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#endif /* _IMAGE_DECODER_H */
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