TurboRLE: decode
This commit is contained in:
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369
trled.c
Executable file
369
trled.c
Executable file
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/**
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Copyright (C) powturbo 2015-2019
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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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- email : powturbo [AT] gmail.com
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- github : https://github.com/powturbo
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- homepage : https://sites.google.com/site/powturbo/
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- twitter : https://twitter.com/powturbo
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TurboRLE - "Most efficient and fastest Run Length Encoding"
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**/
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#ifndef USIZE
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#include <string.h>
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#ifdef __AVX2__
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#include <immintrin.h>
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#elif defined(__AVX__)
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#include <immintrin.h>
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#elif defined(__SSE4_1__)
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#include <smmintrin.h>
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#elif defined(__SSSE3__)
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#include <tmmintrin.h>
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#elif defined(__SSE2__)
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#include <emmintrin.h>
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#elif defined(__ARM_NEON)
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#define ARM_NEON_ON
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#include <arm_neon.h>
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#endif
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#include "sse_neon.h"
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#include "trle.h"
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#include "trle_.h"
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//------------------------------------- RLE 8 with Escape char ------------------------------------------------------------------
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//#define MEMSAFE
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#define SRLE8 32
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#define USIZE 8
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#include "trled.c"
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#if SRLE8
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#define rmemset8(_op_, _c_, _i_) while(_i_--) *_op_++ = _c_
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unsigned _srled8(const unsigned char *__restrict in, unsigned char *__restrict out, unsigned outlen, unsigned char e) {
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uint8_t *ip = in, *op = out, c, *oe = out+outlen;
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uint32_t r;
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#ifdef __AVX2__
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__m256i ev = _mm256_set1_epi8(e);
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#elif defined(__SSE__)
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__m128i ev = _mm_set1_epi8(e);
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#elif defined(__ARM_NEON)
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uint8x8_t ev = vdup_n_u8(e);
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#endif
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if(outlen >= SRLE8)
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while(op < out+(outlen-SRLE8)) {
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#if defined(__AVX2__) || defined(__SSE__) //|| defined(__ARM_NEON)
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uint32_t mask;
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#ifdef __AVX2__
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__m256i v = _mm256_loadu_si256((__m256i*)ip); _mm256_storeu_si256((__m256i *)op, v); mask = _mm256_movemask_epi8(_mm256_cmpeq_epi8(v, ev)); if(mask) goto a; op += 32; ip += 32;
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#elif defined(__SSE__)
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__m128i v = _mm_loadu_si128((__m128i*)ip); _mm_storeu_si128((__m128i *)op, v); mask = _mm_movemask_epi8(_mm_cmpeq_epi8(v, ev)); if(mask) goto a; ip += 16; op += 16;
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#if SRLE8 >= 32
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v = _mm_loadu_si128((__m128i*)ip); _mm_storeu_si128((__m128i *)op, v); mask = _mm_movemask_epi8(_mm_cmpeq_epi8(v, ev)); if(mask) goto a; ip += 16; op += 16;
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#endif
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#endif
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__builtin_prefetch(ip+512, 0);
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continue;
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a: r = ctz32(mask); ip += r+1; __builtin_prefetch(ip+512, 0);
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op += r;
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#else
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if(likely((c = *ip++) != e)) { *op++ = c; continue; }
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#endif
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vlget32(ip, r);
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if(likely(r) >= 3) {
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uint8_t c = *ip++;
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r = r-3+4;
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rmemset(op, c, r);
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} else { r++;
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rmemset8(op, e, r);
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}
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}
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while(op < out+outlen)
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if(likely((c = *ip++) != e)) {
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*op++ = c;
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} else {
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vlget32(ip, r);
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if(likely(r) >= 3) {
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c = *ip++;
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r = r-3+4;
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rmemset8(op, c, r);
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} else { r++;
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rmemset8(op, e, r);
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}
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}
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return ip - in;
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}
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#endif
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unsigned _srled(const unsigned char *__restrict in, unsigned char *__restrict out, unsigned outlen) {
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return _srled8(in+1, out, outlen, *in);
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}
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unsigned srled(const unsigned char *__restrict in, unsigned inlen, unsigned char *__restrict out, unsigned outlen) { unsigned l; unsigned char *ip=in;
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if(inlen == outlen)
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memcpy(out, in, outlen);
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else if(inlen == 1)
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memset(out, in[0], outlen);
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else { ip++;
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ip += _srled8(ip, out, outlen, *in); //AS((ip-in) == inlen,"FatalI l>inlen %d ", (ip-in) - inlen);
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}
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return inlen;
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}
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//------------------------------------- TurboRLE ------------------------------------------
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unsigned _trled(const unsigned char *__restrict in, unsigned char *__restrict out, unsigned outlen) {
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uint8_t rmap[256] = {0}, *op = out, *ip = in;
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unsigned m = 0, i, c;
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if(!outlen)
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return 0;
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if(!(c = *ip++))
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return _srled8(ip+1, out, outlen, *ip)+2;
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#if 0 //def TRLEVER2
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for(ip += (c+7)/8, i = 0; i != c; i++) { uint8_t *pb = &rmap[i<<3], *q = in+1;
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if(BIT_ISSET(q,i)) {
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unsigned u = *ip++,v;
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v = (u >> 0) & 1; m += v; pb[0] = v?m:0;
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v = (u >> 1) & 1; m += v; pb[1] = v?m:0;
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v = (u >> 2) & 1; m += v; pb[2] = v?m:0;
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v = (u >> 3) & 1; m += v; pb[3] = v?m:0;
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v = (u >> 4) & 1; m += v; pb[4] = v?m:0;
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v = (u >> 5) & 1; m += v; pb[5] = v?m:0;
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v = (u >> 6) & 1; m += v; pb[6] = v?m:0;
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v = (u >> 7) & 1; m += v; pb[7] = v?m:0;
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}
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}
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for(i = c*8; i != 256; i++) rmap[i] = ++m;
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#elif 0
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for(ip += 1, i = 0; i != 32; i++) { uint8_t *pb = &rmap[i<<3], *q = in+1; unsigned j = i/4;
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if(BIT_ISSET(q,j)) {
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unsigned u = *ip++,v;
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v = (u >> 0) & 1; m += v; pb[0] = v?m:0;
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v = (u >> 1) & 1; m += v; pb[1] = v?m:0;
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v = (u >> 2) & 1; m += v; pb[2] = v?m:0;
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v = (u >> 3) & 1; m += v; pb[3] = v?m:0;
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v = (u >> 4) & 1; m += v; pb[4] = v?m:0;
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v = (u >> 5) & 1; m += v; pb[5] = v?m:0;
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v = (u >> 6) & 1; m += v; pb[6] = v?m:0;
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v = (u >> 7) & 1; m += v; pb[7] = v?m:0;
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}
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}
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//for(i = c*8; i != 256; i++) rmap[i] = ++m;
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#else
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for(i = 0; i != c; i++) { uint8_t *pb = &rmap[i<<3]; unsigned u = ip[i],v;
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v = (u >> 0) & 1; m += v; pb[0] = v?m:0;
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v = (u >> 1) & 1; m += v; pb[1] = v?m:0;
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v = (u >> 2) & 1; m += v; pb[2] = v?m:0;
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v = (u >> 3) & 1; m += v; pb[3] = v?m:0;
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v = (u >> 4) & 1; m += v; pb[4] = v?m:0;
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v = (u >> 5) & 1; m += v; pb[5] = v?m:0;
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v = (u >> 6) & 1; m += v; pb[6] = v?m:0;
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v = (u >> 7) & 1; m += v; pb[7] = v?m:0;
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}
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ip += c;
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for(i = c*8; i != 256; i++) rmap[i] = ++m;
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#endif
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m--;
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if(outlen >= 32)
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while(op < out+(outlen-32)) {
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#if __WORDSIZE == 64
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uint64_t z = (uint64_t)rmap[ip[7]]<<56 | (uint64_t)rmap[ip[6]] << 48 | (uint64_t)rmap[ip[5]] << 40 | (uint64_t)rmap[ip[4]] << 32 | (uint32_t)rmap[ip[3]] << 24 | (uint32_t)rmap[ip[2]] << 16| (uint32_t)rmap[ip[1]] << 8| rmap[ip[0]];
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ctou64(op) = ctou64(ip); if(z) goto a; ip += 8; op += 8;
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continue;
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a: z = ctz64(z)>>3;
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#else
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uint32_t z = (uint32_t)rmap[ip[3]] << 24 | (uint32_t)rmap[ip[2]] << 16| (uint32_t)rmap[ip[1]] << 8| rmap[ip[0]];
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ctou32(op) = ctou32(ip); if(z) goto a; ip += 4; op += 4;
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continue;
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a: z = ctz32(z)>>3;
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#endif
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ip += z; op += z;
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c = rmap[*ip++];
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vlzget(ip, i, m, c-1);
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c = *ip++;
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i += TMIN;
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rmemset(op,c,i); __builtin_prefetch(ip+512, 0);
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}
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while(op < out+outlen) {
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if(likely(!(c = rmap[*ip]))) *op++ = *ip++;
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else {
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ip++;
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vlzget(ip, i, m, c-1);
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c = *ip++;
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i += TMIN;
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rmemset8(op,c,i);
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}
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}
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return ip - in;
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}
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unsigned trled(const unsigned char *__restrict in, unsigned inlen, unsigned char *__restrict out, unsigned outlen) {
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if(inlen == outlen)
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memcpy(out, in, outlen);
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else if(inlen == 1)
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memset(out, in[0], outlen);
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else {
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unsigned l = _trled(in, out, outlen); //AS(l == inlen,"FatalI l>inlen %d ", l - inlen);
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}
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return inlen;
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}
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#undef USIZE
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#undef rmemset
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#undef SRLE8
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//------------------------------------- RLE 16, 32, 64 --------------------------------------------------
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#define USIZE 16
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#include "trled.c"
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#undef rmemset
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#undef USIZE
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#undef runcpy
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#define USIZE 32
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#include "trled.c"
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#undef rmemset
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#undef USIZE
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#undef runcpy
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#define USIZE 64
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#include "trled.c"
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#undef rmemset
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#undef USIZE
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#else // ---------------------------- include 16, 32, 64----------------------------------------------
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#ifdef MEMSAFE
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#define rmemset(_op_, _c_, _i_) while(_i_--) *_op_++ = _c_
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#elif (__SSE__ != 0 || __ARM_NEON != 0) && USIZE < 64
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#define rmemset(_op_, _c_, _i_) do { \
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__m128i *_up = (__m128i *)_op_, cv = TEMPLATE2(_mm_set1_epi, USIZE)(_c_);\
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_op_ += _i_;\
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do { _mm_storeu_si128( _up, cv); _mm_storeu_si128(_up+1, cv); _up+=2; } while(_up < (__m128i *)_op_);\
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} while(0)
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#else
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#define _cset64(_cc,_c_) _cc = _c_
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#define _cset32(_cc,_c_) _cc = _c_; _cc = _cc<<32|_cc
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#define _cset16(_cc,_c_) _cc = _c_; _cc = _cc<<48|_cc<<32|_cc<<16|_cc
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#define _cset8( _cc,_c_) _cc = (uint32_t)_c_<<24 | (uint32_t)_c_<<16 | (uint32_t)_c_<<8 | (uint32_t)_c_; _cc = _cc<<32|_cc
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#define rmemset(_op_, _c_, _i_) do { uint64_t _cc; uint8_t *_up = (uint8_t *)_op_; _op_ +=_i_;\
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TEMPLATE2(_cset, USIZE)(_cc,_c_);\
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do {\
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TEMPLATE2(ctou, USIZE)(_up) = _c_; _up += USIZE/8;\
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TEMPLATE2(ctou, USIZE)(_up) = _c_; _up += USIZE/8;\
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} while(_up < (uint8_t *)_op_);\
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} while(0)
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#endif
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#define uint_t TEMPLATE3(uint, USIZE, _t)
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#define ctout(_x_) *(uint_t *)(_x_)
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#if !SRLE8
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unsigned TEMPLATE2(_srled, USIZE)(const unsigned char *__restrict in, unsigned char *__restrict cout, unsigned outlen, uint_t e) {
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uint_t *out = (uint_t *)cout, *op = out, c;
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const unsigned char *ip = in;
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#ifdef __AVX2__
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#define _mm256_set1_epi64 _mm256_set1_epi64x
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__m256i ev = TEMPLATE2(_mm256_set1_epi, USIZE)(e);
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#elif (defined(__SSE__) /*|| defined(__ARM_NEON)*/)
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// #if USIZE != 64
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#define _mm_set1_epi64 _mm_set1_epi64x
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__m128i ev = TEMPLATE2(_mm_set1_epi, USIZE)(e);
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// #endif
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#endif
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if(outlen >= sizeof(uint_t)*8)
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while(op < out+outlen/sizeof(uint_t)-sizeof(uint_t)*8) { int r;
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#if __AVX2__ != 0 && USIZE != 64
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uint32_t mask;
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__m256i v = _mm256_loadu_si256((__m256i*)ip); _mm256_storeu_si256((__m256i *)op, v); mask = _mm256_movemask_epi8(TEMPLATE2(_mm256_cmpeq_epi,USIZE)(v, ev)); if(mask) goto a; ip += 32; op += 256/USIZE;
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v = _mm256_loadu_si256((__m256i*)ip); _mm256_storeu_si256((__m256i *)op, v); mask = _mm256_movemask_epi8(TEMPLATE2(_mm256_cmpeq_epi,USIZE)(v, ev)); if(mask) goto a; ip += 32; op += 256/USIZE;
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__builtin_prefetch(ip+512, 0);
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continue;
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a: r = ctz32(mask)/(USIZE/8);
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op += r;
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ip += (r+1)*sizeof(uint_t); __builtin_prefetch(ip+512, 0);
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#elif (__SSE__ != 0 /*|| __ARM_NEON != 0*/) && USIZE != 64
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uint32_t mask;
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__m128i v = _mm_loadu_si128((__m128i*)ip); _mm_storeu_si128((__m128i *)op, v); mask = _mm_movemask_epi8(TEMPLATE2(_mm_cmpeq_epi,USIZE)(v, ev)); if(mask) goto a; ip += 16; op += 128/USIZE;
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v = _mm_loadu_si128((__m128i*)ip); _mm_storeu_si128((__m128i *)op, v); mask = _mm_movemask_epi8(TEMPLATE2(_mm_cmpeq_epi,USIZE)(v, ev)); if(mask) goto a; ip += 16; op += 128/USIZE;
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v = _mm_loadu_si128((__m128i*)ip); _mm_storeu_si128((__m128i *)op, v); mask = _mm_movemask_epi8(TEMPLATE2(_mm_cmpeq_epi,USIZE)(v, ev)); if(mask) goto a; ip += 16; op += 128/USIZE;
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v = _mm_loadu_si128((__m128i*)ip); _mm_storeu_si128((__m128i *)op, v); mask = _mm_movemask_epi8(TEMPLATE2(_mm_cmpeq_epi,USIZE)(v, ev)); if(mask) goto a; ip += 16; op += 128/USIZE;
|
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__builtin_prefetch(ip+512, 0);
|
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continue;
|
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a: r = ctz32(mask)/(USIZE/8);
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op += r;
|
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ip += (r+1)*sizeof(uint_t); __builtin_prefetch(ip+512, 0);
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#else
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c;
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c;
|
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c;
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c;
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c;
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c;
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c;
|
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if(((c = ctout(ip)) == e)) goto a; ip += sizeof(uint_t); *op++ = c; __builtin_prefetch(ip +512, 0);
|
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continue;
|
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a: ip += sizeof(uint_t); __builtin_prefetch(ip +512, 0);
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#endif
|
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vlget32(ip, r);
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if(likely(r) >= 3) {
|
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c = ctout(ip); ip += sizeof(uint_t);
|
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r = r-3+4;
|
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rmemset(op, c, r);
|
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} else { r++;
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rmemset(op, e, r);
|
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}
|
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}
|
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|
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while(op < out+outlen/sizeof(uint_t)) {
|
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c = ctout(ip); ip += sizeof(uint_t);
|
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if(likely(c != e)) {
|
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*op++ = c;
|
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} else {
|
||||
int r;
|
||||
vlget32(ip, r);
|
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if(likely(r) >= 3) {
|
||||
c = ctout(ip); ip += sizeof(uint_t);
|
||||
r = r-3+4;
|
||||
rmemset(op, c, r);
|
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} else {
|
||||
r++;
|
||||
rmemset(op, e, r);
|
||||
}
|
||||
}
|
||||
}
|
||||
{ unsigned char *p = (unsigned char *)op;
|
||||
while(p < cout+outlen) *p++ = *ip++;
|
||||
}
|
||||
return ip - in;
|
||||
}
|
||||
#endif
|
||||
|
||||
unsigned TEMPLATE2(srled, USIZE)(const unsigned char *__restrict in, unsigned inlen, unsigned char *__restrict out, unsigned outlen, uint_t e) {
|
||||
if(inlen == outlen)
|
||||
memcpy(out, in, outlen);
|
||||
else if(inlen == 1)
|
||||
memset(out, in[0], outlen);
|
||||
else
|
||||
return TEMPLATE2(_srled, USIZE)(in, out, outlen, e);
|
||||
return inlen;
|
||||
}
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user