/** Copyright (C) powturbo 2013-2017 GPL v2 License This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - homepage : https://sites.google.com/site/powturbo/ - github : https://github.com/powturbo - twitter : https://twitter.com/powturbo - email : powturbo [_AT_] gmail [_DOT_] com **/ // "TurboPFor: Integer Compression" Turbo PFor/PforDelta #ifndef USIZE #include #include "conf.h" #include "bitpack.h" #include "vint.h" #include "bitutil.h" #include "vp4.h" #undef P4DELTA #define PAD8(_x_) ( (((_x_)+8-1)/8) ) //------------------------------------------ #define _P4BITS _p4bits #define P4BITS _p4bits //-- Scalar #define _P4ENC _p4enc #define P4ENC p4enc #define P4NENC p4nenc #define BITPACK bitpack #define BITDELTA bitdenc #define USIZE 8 #include "vp4c.c" #define EXCEP 1 // Hybrid TurboPFor : 0=fixed bit packing, 1=fixed BP+Variable byte #define USIZE 16 #include "vp4c.c" #define USIZE 32 #include "vp4c.c" #define USIZE 64 #include "vp4c.c" #define P4DELTA 0 #define P4DENC p4denc #define P4NENC p4ndenc #define P4NENCS p4denc #define EXCEP 0 #define USIZE 8 #include "vp4c.c" #define EXCEP 1 #define USIZE 16 #include "vp4c.c" #define USIZE 32 #include "vp4c.c" #define USIZE 64 #include "vp4c.c" #define P4DELTA 1 #define P4DENC p4d1enc #define P4NENC p4nd1enc #define P4NENCS p4d1enc #define EXCEP 0 #define USIZE 8 #include "vp4c.c" #define EXCEP 1 #define USIZE 16 #include "vp4c.c" #define USIZE 32 #include "vp4c.c" #define USIZE 64 #include "vp4c.c" #define BITDELTA bitzenc #define P4DENC p4zenc #define P4NENC p4nzenc #define P4NENCS p4zenc #define EXCEP 0 #define USIZE 8 #include "vp4c.c" #define EXCEP 1 #define USIZE 16 #include "vp4c.c" #define USIZE 32 #include "vp4c.c" #define USIZE 64 #include "vp4c.c" #define BITDELTA bitdenc #undef P4DELTA #define EXCEP 0 // Direct access #define P4BITS _p4bitsx #define _P4BITS _p4bitsx #define _P4ENC _p4encx #define P4ENC p4encx #define P4NENC p4nencx #define USIZE 8 #include "vp4c.c" #define USIZE 16 #include "vp4c.c" #define USIZE 32 #include "vp4c.c" #undef _P4ENC #undef P4ENC #undef BITPACK #undef _P4BITS #define P4BITS _p4bits #ifndef NSIMD #define EXCEP 1 // #ifdef __SSE2__ //-- SIMD: Vertical bitpacking #define VSIZE 128 #define _P4ENC _p4enc128v #define P4ENC p4enc128v #define P4NENCS p4enc #define P4NENC p4nenc128v #define BITPACK bitpack128v #define USIZE 32 #include "vp4c.c" #define P4DELTA 0 #define P4DENC p4denc128v #define P4NENC p4ndenc128v #define P4NENCS p4denc #include "vp4c.c" #define P4DELTA 1 #define P4DENC p4d1enc128v #define P4NENC p4nd1enc128v #define P4NENCS p4d1enc #include "vp4c.c" #define P4DELTA 0 #define BITDELTA bitzenc #define P4DENC p4zenc128v #define P4NENC p4nzenc128v #define P4NENCS p4zenc #include "vp4c.c" #define BITDELTA bitdenc #undef P4DELTA #undef _P4ENC #undef P4ENC #undef BITPACK #endif #ifdef __AVX2__ #define VSIZE 256 #define _P4ENC _p4enc256v #define P4ENC p4enc256v #define P4NENC p4nenc256v #define P4NENCS p4enc #define BITPACK bitpack256v #define USIZE 32 #include "vp4c.c" #define P4DELTA 0 #define P4DENC p4denc256v #define P4NENC p4ndenc256v #define P4NENCS p4denc #include "vp4c.c" #define P4DELTA 1 #define P4DENC p4d1enc256v #define P4NENC p4nd1enc256v #define P4NENCS p4d1enc #include "vp4c.c" #undef P4DELTA #undef _P4ENC #undef P4ENC #undef BITPACK #endif #endif #undef USIZE #else #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wparentheses" #pragma GCC push_options #pragma GCC optimize ("align-functions=16") #define uint_t TEMPLATE3(uint, USIZE, _t) #ifdef VSIZE #define CSIZE VSIZE #else #define CSIZE 128 #endif #ifndef P4DELTA #ifdef _P4BITS unsigned TEMPLATE2(_P4BITS, USIZE)(uint_t *__restrict in, unsigned n, unsigned *pbx) { #if EXCEP == 1 unsigned _vb[USIZE*2+5] = {0}, *vb=&_vb[USIZE]; #endif unsigned cnt[USIZE+1] = {0}, x, bx, bmp8=(n+7)/8; uint_t *ip, u=0; int b,i,ml,l,fx=0; #define CNTE(i) { ++cnt[TEMPLATE2(bsr, USIZE)(ip[i])], u |= ip[i]; } for(ip = in; ip != in+(n&~3); ip+=4) { CNTE(0); CNTE(1); CNTE(2); CNTE(3); } for(;ip != in+n;ip++) CNTE(0); b = TEMPLATE2(bsr, USIZE)(u); bx = b; ml = PAD8(n*b)+1; x = cnt[b]; #if EXCEP > 0 #define VBB(_x_,_b_) vb[_b_-7]+=_x_; vb[_b_-15]+=_x_*2; vb[_b_-19]+=_x_*3; vb[_b_-25]+=_x_*4; int vv = x; VBB(x,b); #else ml -= 2+bmp8; #endif for(i = b-1; i >= 0; --i) { #if EXCEP > 0 l = PAD8(n*i) + 2+bmp8 + PAD8(x*(bx-i)); int v = PAD8(n*i) + 2 + x + vv, vx = 0; x += cnt[i]; vv +=cnt[i]+vb[i]; VBB(cnt[i],i); int fi = l < ml; ml = fi?l:ml; b = fi?i:b; fx=fi?0:fx; fi = v < ml; ml = fi?v:ml; b = fi?i:b; fx=fi?1:fx; #else l = PAD8(n*i) + PAD8(x*(bx-i)); x += cnt[i]; int fi = l < ml; ml = fi?l:ml; b = fi?i:b; #endif } //fx = 0; #if EXCEP > 0 *pbx = fx?(USIZE+1):(bx - b); #else *pbx = bx - b; #endif return b; } #endif inline unsigned char *TEMPLATE2(_P4ENC, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out, unsigned b, unsigned bx) { if(!bx) return TEMPLATE2(BITPACK, USIZE)(in, n, out, b); uint_t msk = (1ull << b)-1,_in[P4D_MAX], inx[P4D_MAX*2]; unsigned long long xmap[P4D_MAX/64] = { 0 }; unsigned miss[P4D_MAX],i, xn, c; #define MISS { miss[xn] = i; xn += in[i] > msk; _in[i] = in[i] & msk; i++; } for(xn = i = 0; i != n&~3; ) { MISS; MISS; MISS; MISS; } while(i != n) MISS; for(i = 0; i != xn; ++i) { c = miss[i]; xmap[c>>6] |= (1ull << (c&0x3f)); inx[i] = in[c] >> b; } unsigned char *_out = out; #if EXCEP > 0 if(bx <= USIZE) { #endif for(i = 0; i < (n+63)/64; i++) ctou64(out+i*8) = xmap[i]; out += PAD8(n); out = TEMPLATE2(bitpack, USIZE)(inx, xn, out, bx); out = TEMPLATE2(BITPACK, USIZE)(_in, n, out, b); #if EXCEP > 0 } else { *out++ = xn; out = TEMPLATE2(BITPACK, USIZE)(_in, n, out, b); out = TEMPLATE2(vbenc, USIZE)(inx, xn, out); for(i = 0; i != xn; ++i) *out++ = miss[i]; } #endif return out; } unsigned char *TEMPLATE2(P4ENC, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out) { if(!n) return out; unsigned bx, b = TEMPLATE2(P4BITS, USIZE)(in, n, &bx); #if EXCEP > 0 if(bx <= USIZE) { P4SAVE(out, b, bx); } else *out++= 0x80|b<<1; #else P4SAVE(out, b, bx); #endif return TEMPLATE2(_P4ENC, USIZE)(in, n, out, b, bx); } size_t TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *__restrict out) { if(!n) return 0; unsigned char *op = out; uint_t *ip; for(ip = in; ip != in+(n&~(CSIZE-1)); ip += CSIZE) { __builtin_prefetch(ip+512); unsigned bx, b = TEMPLATE2(P4BITS, USIZE)(ip, CSIZE, &bx); #if EXCEP > 0 if(bx <= USIZE) { P4SAVE(op, b, bx); } else *op++= 0x80|b<<1; #else P4SAVE(op, b, bx); #endif op = TEMPLATE2(_P4ENC, USIZE)(ip, CSIZE, op, b, bx); // op = TEMPLATE2(P4ENC, USIZE)(ip, CSIZE, op); } return TEMPLATE2(p4enc, USIZE)(ip, n&(CSIZE-1), op) - out; } #else ALWAYS_INLINE unsigned char *TEMPLATE2(P4DENC, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out, uint_t start) { if(!n) return out; uint_t _in[P4D_MAX+8]; TEMPLATE2(BITDELTA, USIZE)(in, n, _in, start, P4DELTA); return TEMPLATE2(P4ENC, USIZE)(_in, n, out); } size_t TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *__restrict out) { if(!n) return out; unsigned char *op = out; uint_t *ip, start = *in++; TEMPLATE2(vbxput, USIZE)(op, start); for(ip = in, --n; ip != in+(n&~(CSIZE-1)); ip += CSIZE) { __builtin_prefetch(ip+512); uint_t _in[P4D_MAX+8]; TEMPLATE2(BITDELTA, USIZE)(ip, CSIZE, _in, start, P4DELTA); unsigned bx, b = TEMPLATE2(_p4bits, USIZE)(_in, CSIZE, &bx); #if EXCEP > 0 if(bx <= USIZE) { P4SAVE(op, b, bx); } else *op++= 0x80|b<<1; #else P4SAVE(op, b, bx); #endif op = TEMPLATE2(_P4ENC, USIZE)(_in, CSIZE, op, b, bx); // op = TEMPLATE2(P4ENC, USIZE)(_in, CSIZE, op); start = ip[CSIZE-1]; } return TEMPLATE2(P4NENCS, USIZE)(ip, n&(CSIZE-1), op, start) - out; } #endif #pragma clang diagnostic pop #endif /*TODO 111 : 32 bits = bitpack b=32 if bits=0x1f EOB 000 : bitpack = bitpack no exp b=0..5 001 : vbyte b=0..5 010 : exp equ. b=0..5 b,bitpack 011 : bp. equal b=0..5 b,exp. 1XX : EOB last block */