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39 lines
1.2 KiB
39 lines
1.2 KiB
/* Copyright 2014-2017 Alex 'AdUser' Z (ad_user@runbox.com) |
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* |
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* This file is part of libsimdb |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef HAS_BITMAP_H |
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#define HAS_BITMAP_H 1 |
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/** |
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* @file |
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* @brief Functions for work with image bitmaps |
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*/ |
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/** Bits per bitmap side (currently - 16) */ |
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#define SIMDB_BITMAP_SIDE 16 |
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/** Total bits in bitmap (currently - 256) */ |
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#define SIMDB_BITMAP_BITS (SIMDB_BITMAP_SIDE * SIMDB_BITMAP_SIDE) |
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/** Bitmap size in bytes (currently - 32) */ |
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#define SIMDB_BITMAP_SIZE (SIMDB_BITMAP_BITS / 8) |
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/** |
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* @brief Compare two bitmaps |
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* @param a First bitmap to compare |
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* @param b Second bitmap to compare |
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* @returns Integer showing difference between bitmaps in bits (0-256) |
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*/ |
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int simdb_bitmap_compare(const unsigned char *a, const unsigned char *b); |
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/** |
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* @brief Unpack BITmap to BYTEmap |
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* @param map Source bitmap |
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* @param buf Pointer to store generated bytemap |
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* @returns Size of generated bytemap (now is @a BITMAP_BITS) |
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*/ |
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size_t simdb_bitmap_unpack(const unsigned char *map, char **buf); |
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#endif
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