217 lines
18 KiB
C
217 lines
18 KiB
C
/**
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Copyright (C) powturbo 2013-2017
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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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#ifndef BITPACK_H_
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#define BITPACK_H_
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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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//********************************** Bit Packing : Pack ****************************************************************
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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 *bitpack8( uint8_t *__restrict in, unsigned n, const unsigned char *__restrict out , unsigned b);
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unsigned char *bitpack16( uint16_t *__restrict in, unsigned n, const unsigned char *__restrict out , unsigned b);
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unsigned char *bitpack32( uint32_t *__restrict in, unsigned n, const unsigned char *__restrict out , unsigned b);
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unsigned char *bitpack64( uint64_t *__restrict in, unsigned n, const unsigned char *__restrict out , unsigned b);
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// delta bit packing
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unsigned char *bitdpack8( uint8_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitdpack16( uint16_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitdpack32( uint32_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitdpack64( uint64_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint64_t start, unsigned b);
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unsigned char *bitd1pack8( uint8_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitd1pack16( uint16_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitd1pack32( uint32_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitd1pack64( uint64_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint64_t start, unsigned b);
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// FOR bit packing : sorted integer array
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unsigned char *bitfpack8( uint8_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitfpack16( uint16_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitfpack32( uint32_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitfpack64( uint64_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint64_t start, unsigned b);
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unsigned char *bitf1pack8( uint8_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitf1pack16( uint16_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitf1pack32( uint32_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitf1pack64( uint64_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint64_t start, unsigned b);
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// zigzag : unsorted integer array
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unsigned char *bitzpack8( uint8_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitzpack16( uint16_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitzpack32( uint32_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitzpack64( uint64_t *__restrict in, unsigned n, const unsigned char *__restrict out, uint64_t start, unsigned b);
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//-------------------------------------- SIMD ------------------------------------------------------------------------------------------
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// Pack array with 128 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 *bitpack128v32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out , unsigned b);
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unsigned char *bitdpack128v32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitd1pack128v32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitzpack128v32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitpack256v32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out , unsigned b);
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unsigned char *bitdpack256v32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitd1pack256v32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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unsigned char *bitzpack256v32( unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b);
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//********************************** Bit Packing : Unpack ****************************************************************
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// ---------------- Unpack a b-bits packed integer array -------------------------------------------------------------------------------
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// unpack a bitpacked integer array. Return value = end of packed buffer in
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unsigned char *bitunpack8( const unsigned char *__restrict in, unsigned n, uint8_t *__restrict out, unsigned b);
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unsigned char *bitunpack16( const unsigned char *__restrict in, unsigned n, uint16_t *__restrict out, unsigned b);
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unsigned char *bitunpack32( const unsigned char *__restrict in, unsigned n, uint32_t *__restrict out, unsigned b);
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unsigned char *bitunpack64( const unsigned char *__restrict in, unsigned n, uint64_t *__restrict out, unsigned b);
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// ---------------- Direct Access to a single packed integer array entry --------------------------------------------------------------
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#ifndef NTURBOPFOR_DAC
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#ifdef __AVX2__
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#include <immintrin.h>
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#define bzhi64(_u_, _b_) _bzhi_u64(_u_, _b_)
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#define bzhi32(_u_, _b_) _bzhi_u32(_u_, _b_)
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#else
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#define bzhi64(_u_, _b_) ((_u_) & ((1ull<<(_b_))-1))
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#define bzhi32(_u_, _b_) ((_u_) & ((1u <<(_b_))-1))
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#endif
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#include "conf.h"
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// Get a single 32 bits value with index "idx" (or bit index b*idx) from packed integer array
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static ALWAYS_INLINE unsigned bitgetx32(const unsigned char *__restrict in, unsigned idx, unsigned b) { unsigned bidx = b*idx; return bzhi64( ctou64((unsigned *)in+(bidx>>5)) >> (bidx&0x1f), b ); }
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static ALWAYS_INLINE unsigned _bitgetx32(const unsigned char *__restrict in, unsigned bidx, unsigned b) { return bzhi64( ctou64((unsigned *)in+(bidx>>5)) >> (bidx&0x1f), b ); }
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// like bitgetx32 but for 16 bits integer array
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static ALWAYS_INLINE unsigned bitgetx8( const unsigned char *__restrict in, unsigned idx, unsigned b) { unsigned bidx = b*idx; return bzhi32( ctou16((uint16_t *)in+(bidx>>4)) >> (bidx& 0xf), b ); }
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static ALWAYS_INLINE unsigned _bitgetx8( const unsigned char *__restrict in, unsigned bidx, unsigned b) { return bzhi32( ctou16((uint16_t *)in+(bidx>>4)) >> (bidx& 0xf), b ); }
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static ALWAYS_INLINE unsigned bitgetx16(const unsigned char *__restrict in, unsigned idx, unsigned b) { unsigned bidx = b*idx; return bzhi32( ctou32((uint32_t *)in+(bidx>>4)) >> (bidx& 0xf), b ); }
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static ALWAYS_INLINE unsigned _bitgetx16(const unsigned char *__restrict in, unsigned bidx, unsigned b) { return bzhi32( ctou32((unsigned *)in+(bidx>>4)) >> (bidx& 0xf), b ); }
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// Set a single value with index "idx"
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static ALWAYS_INLINE void bitsetx16(const unsigned char *__restrict in, unsigned idx, unsigned v, unsigned b) { unsigned bidx = b*idx; unsigned *p = (unsigned *) in+(bidx>>4) ; *p = ( *p & ~(((1u <<b)-1) << (bidx& 0xf)) ) | v<<(bidx& 0xf);}
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static ALWAYS_INLINE void bitsetx32(const unsigned char *__restrict in, unsigned idx, unsigned v, unsigned b) { unsigned bidx = b*idx; unsigned long long *p = (unsigned long long *)((unsigned *)in+(bidx>>5)); *p = ( *p & ~(((1ull<<b)-1) << (bidx&0x1f)) ) | (unsigned long long)v<<(bidx&0x1f);}
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#endif
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// ---------------- DFOR : integrated bitpacking, for delta packed SORTED array (Ex. DocId in inverted index) -------------------------------
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// start <= out[0] <= out[1] <= ... <= out[n-2] <= out[n-1] <= (1<<N)-1 N=8,16,32 or 64
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// out[0] = start + in[0]; out[1] = out[0] + in[1]; ... ; out[i] = out[i-1] + in[i]
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unsigned char *bitdunpack8( const unsigned char *__restrict in, unsigned n, uint8_t *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitdunpack16( const unsigned char *__restrict in, unsigned n, uint16_t *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitdunpack32( const unsigned char *__restrict in, unsigned n, uint32_t *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitdunpack64( const unsigned char *__restrict in, unsigned n, uint64_t *__restrict out, uint64_t start, unsigned b);
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// start < out[0] < out[1] < ... < out[n-2] < out[n-1] < (1<<N)-1, N=8,16,32 or 64
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// out[0] = start + in[0] + 1; out[1] = out[0] + in[1] + 1; ... ; out[i] = out[i-1] + in[i] + 1
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unsigned char *bitd1unpack8( const unsigned char *__restrict in, unsigned n, uint8_t *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitd1unpack16(const unsigned char *__restrict in, unsigned n, uint16_t *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitd1unpack32(const unsigned char *__restrict in, unsigned n, uint32_t *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitd1unpack64(const unsigned char *__restrict in, unsigned n, uint64_t *__restrict out, uint64_t start, unsigned b);
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// ---------------- ZigZag : integrated bitpacking, for zigzag packed unsorted
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unsigned char *bitzunpack8( const unsigned char *__restrict in, unsigned n, uint8_t *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitzunpack16( const unsigned char *__restrict in, unsigned n, uint16_t *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitzunpack32( const unsigned char *__restrict in, unsigned n, uint32_t *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitzunpack64( const unsigned char *__restrict in, unsigned n, uint64_t *__restrict out, uint64_t start, unsigned b);
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// ---------------- For : Direct Access for packed SORTED array --------------------------------------------
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// out[i] = start + in[i] + i
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unsigned char *bitfunpack8( const unsigned char *__restrict in, unsigned n, uint8_t *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitfunpack16( const unsigned char *__restrict in, unsigned n, uint16_t *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitfunpack32( const unsigned char *__restrict in, unsigned n, uint32_t *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitfunpack64( const unsigned char *__restrict in, unsigned n, uint64_t *__restrict out, uint64_t start, unsigned b);
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// out[i] = start + in[i] + i + 1
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unsigned char *bitf1unpack8( const unsigned char *__restrict in, unsigned n, uint8_t *__restrict out, uint8_t start, unsigned b);
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unsigned char *bitf1unpack16(const unsigned char *__restrict in, unsigned n, uint16_t *__restrict out, uint16_t start, unsigned b);
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unsigned char *bitf1unpack32(const unsigned char *__restrict in, unsigned n, uint32_t *__restrict out, uint32_t start, unsigned b);
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unsigned char *bitf1unpack64(const unsigned char *__restrict in, unsigned n, uint64_t *__restrict out, uint64_t start, unsigned b);
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// ---------------- SIMD : unpack a SIMD bit packed integer array -------------------------------------------------------------------------------
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// SIMD unpack a 128/256 bitpacked integer array. Return value = end of packed buffer in
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unsigned char *bitunpack128v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned b);
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unsigned char *bitzunpack128v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitdunpack128v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitd1unpack128v32(const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitunpack256v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned b);
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unsigned char *bitzunpack256v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitdunpack256v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitd1unpack256v32(const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitunpack128h32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned b);
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unsigned char *bitzunpack128h32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitdunpack128h32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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unsigned char *bitd1unpack128h32(const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b);
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// internal TurboPFor functions: masked unpack
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unsigned char *_bitunpack128v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitdunpack128v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitd1unpack128v32(const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitunpack128h32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitdunpack128h32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitd1unpack128h32(const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitunpack256v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitdunpack256v32( const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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unsigned char *_bitd1unpack256v32(const unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned *__restrict pex, unsigned char *bb);
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//------------------------------- Multiple blocks --------------------------------
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unsigned char *bitnpack8( uint8_t *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *bitnpack16( uint16_t *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *bitnpack32( uint32_t *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *bitnpack64( uint64_t *__restrict in, size_t n, unsigned char *__restrict out);
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unsigned char *bitndpack8( uint8_t *__restrict in, size_t n, unsigned char *__restrict out, uint8_t start);
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unsigned char *bitndpack16( uint16_t *__restrict in, size_t n, unsigned char *__restrict out, uint16_t start);
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unsigned char *bitndpack32( uint32_t *__restrict in, size_t n, unsigned char *__restrict out, uint32_t start);
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unsigned char *bitndpack64( uint64_t *__restrict in, size_t n, unsigned char *__restrict out, uint64_t start);
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unsigned char *bitnd1pack8( uint8_t *__restrict in, size_t n, unsigned char *__restrict out, uint8_t start);
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unsigned char *bitnd1pack16( uint16_t *__restrict in, size_t n, unsigned char *__restrict out, uint16_t start);
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unsigned char *bitnd1pack32( uint32_t *__restrict in, size_t n, unsigned char *__restrict out, uint32_t start);
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unsigned char *bitnd1pack64( uint64_t *__restrict in, size_t n, unsigned char *__restrict out, uint64_t start);
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unsigned char *bitnunpack8( unsigned char *__restrict in, size_t n, uint8_t *__restrict out);
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unsigned char *bitnunpack16( unsigned char *__restrict in, size_t n, uint16_t *__restrict out);
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unsigned char *bitnunpack32( unsigned char *__restrict in, size_t n, uint32_t *__restrict out);
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unsigned char *bitnunpack64( unsigned char *__restrict in, size_t n, uint64_t *__restrict out);
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unsigned char *bitndunpack8( unsigned char *__restrict in, size_t n, uint8_t *__restrict out, uint8_t start);
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unsigned char *bitndunpack16( unsigned char *__restrict in, size_t n, uint16_t *__restrict out, uint16_t start);
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unsigned char *bitndunpack32( unsigned char *__restrict in, size_t n, uint32_t *__restrict out, uint32_t start);
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unsigned char *bitndunpack64( unsigned char *__restrict in, size_t n, uint64_t *__restrict out, uint64_t start);
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unsigned char *bitnd1unpack8( unsigned char *__restrict in, size_t n, uint8_t *__restrict out, uint8_t start);
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unsigned char *bitnd1unpack16(unsigned char *__restrict in, size_t n, uint16_t *__restrict out, uint16_t start);
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unsigned char *bitnd1unpack32(unsigned char *__restrict in, size_t n, uint32_t *__restrict out, uint32_t start);
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unsigned char *bitnd1unpack64(unsigned char *__restrict in, size_t n, uint64_t *__restrict out, uint64_t start);
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#ifdef __cplusplus
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}
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#endif
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#endif
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