59 lines
3.3 KiB
C
59 lines
3.3 KiB
C
/**
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Copyright (C) powturbo 2013-2015
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GPL v2 License
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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 as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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- homepage : https://sites.google.com/site/powturbo/
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- github : https://github.com/powturbo
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- twitter : https://twitter.com/powturbo
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- email : powturbo [_AT_] gmail [_DOT_] com
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**/
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// bitpack.h - "Integer Compression" Binary Packing header file
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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// bipackNN: Pack array with n unsigned (NN bits in[n]) values to the buffer out using nbits per value. Return value = end of compressed buffer out
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unsigned char *bitpack32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out , unsigned b);
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unsigned char *bitpack16( unsigned short *__restrict in, unsigned n, unsigned char *__restrict out , unsigned b);
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unsigned char *bitpack64( uint64_t *__restrict in, unsigned n, unsigned char *__restrict out , unsigned b);
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// delta bit packing
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unsigned char *bitdpack32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitd1pack32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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// for bit packing
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unsigned char *bitfpack32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitf1pack32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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// zigzag
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unsigned char *bitzpack32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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//-------------------------------------- SIMD ------------------------------------------------------------------------------------------
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// Pack array with n unsigned (32 bits in[n]) values to the buffer out using nbits per value. Return value = end of compressed buffer out
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unsigned char *bitpackv32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out , unsigned b);
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unsigned char *bitdpackv32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitd1packv32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitzpackv32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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// like bitpack32 but for 16 bits arrays
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unsigned char *bitpackv16( unsigned short *__restrict in, unsigned n, unsigned char *__restrict out , unsigned b);
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#ifdef __cplusplus
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}
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#endif
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