48 lines
2.4 KiB
C
48 lines
2.4 KiB
C
/**
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Copyright (C) powturbo 2013-2019
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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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// "Integer Compression" variable simple "SimpleV"
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// this belongs to the integer compression known as "simple family", like simple-9,simple-16
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// or simple-8b. SimpleV is compressing integers in groups into variable word size 32, 40 and 64 bits + RLE (run length encoding)
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// SimpleV is faster than simple-16 and compress better than simple-16 or simple-8b.
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#ifdef __cplusplus
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extern "C" {
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#endif
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// vsencNN: compress array with n unsigned (NN bits in[n]) values to the buffer out. Return value = end of compressed output buffer out
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unsigned char *vsenc8( unsigned char *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *vsenc16(unsigned short *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *vsenc32(unsigned *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *vsenc64(uint64_t *__restrict in, size_t n, unsigned char *__restrict out);
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// vsdecNN: decompress buffer into an array of n unsigned values. Return value = end of compressed input buffer in
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unsigned char *vsdec8( unsigned char *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *vsdec16(unsigned char *__restrict in, size_t n, unsigned short *__restrict out);
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unsigned char *vsdec32(unsigned char *__restrict in, size_t n, unsigned *__restrict out);
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unsigned char *vsdec64(unsigned char *__restrict in, size_t n, uint64_t *__restrict out);
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#ifdef __cplusplus
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}
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#endif
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