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turbob64v128.c
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/**
Copyright (C) powturbo 2016-2022
GPL v3 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 3 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
**/
// Turbo-Base64: ssse3 + arm neon functions (see also turbob64v256)
#include <string.h>
#if defined(__AVX__)
#include <immintrin.h>
#define FUNPREF tb64v128a
#elif defined(__SSE4_1__)
#include <smmintrin.h>
#define FUNPREF tb64v128
#elif defined(__SSSE3__)
#ifdef __powerpc64__
#define __SSE__ 1
#define __SSE2__ 1
#define __SSE3__ 1
#define NO_WARN_X86_INTRINSICS 1
#endif
#define FUNPREF tb64v128
#include <tmmintrin.h>
#elif defined(__SSE2__)
#include <emmintrin.h>
#elif defined(__ARM_NEON)
#include <arm_neon.h>
#endif
#define UA_MEMCPY
#include "conf.h"
#include "turbob64.h"
#include "turbob64_.h"
#ifdef __ARM_NEON //----------------------------------- arm neon --------------------------------
#define _ 0xff // invald entry
static const unsigned char lut[] = {
_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, _, _, _, _, _, _,62, _, _, _,63,
52,53,54,55,56,57,58,59,60,61, _, _, _, _, _, _,
_, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,
15,16,17,18,19,20,21,22,23,24,25, _, _, _, _, _,
_,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,
41,42,43,44,45,46,47,48,49,50,51, _, _, _, _, _,
};
#undef _
#if defined(__GNUC__) && !defined(__clang__) && (__GNUC__ == 10 && __GNUC_MINOR__ <= 2 || \
__GNUC__ == 9 && __GNUC_MINOR__ <= 3 || \
__GNUC__ == 8 && __GNUC_MINOR__ <= 4 || \
__GNUC__ <= 7)
static inline uint8x16x4_t vld1q_u8_x4(const uint8_t *lut) {
uint8x16x4_t v;
v.val[0] = vld1q_u8(lut);
v.val[1] = vld1q_u8(lut+16);
v.val[2] = vld1q_u8(lut+32);
v.val[3] = vld1q_u8(lut+48);
return v;
}
#endif
#define B64D(iv, ov) {\
iv.val[0] = vqtbx4q_u8(vqtbl4q_u8(vlut1, veorq_u8(iv.val[0], cv40)), vlut0, iv.val[0]);\
iv.val[1] = vqtbx4q_u8(vqtbl4q_u8(vlut1, veorq_u8(iv.val[1], cv40)), vlut0, iv.val[1]);\
iv.val[2] = vqtbx4q_u8(vqtbl4q_u8(vlut1, veorq_u8(iv.val[2], cv40)), vlut0, iv.val[2]);\
iv.val[3] = vqtbx4q_u8(vqtbl4q_u8(vlut1, veorq_u8(iv.val[3], cv40)), vlut0, iv.val[3]);\
\
ov.val[0] = vorrq_u8(vshlq_n_u8(iv.val[0], 2), vshrq_n_u8(iv.val[1], 4));\
ov.val[1] = vorrq_u8(vshlq_n_u8(iv.val[1], 4), vshrq_n_u8(iv.val[2], 2));\
ov.val[2] = vorrq_u8(vshlq_n_u8(iv.val[2], 6), iv.val[3] );\
}
#define _MM_B64CHK(iv, xv) xv = vorrq_u8(xv, vorrq_u8(vorrq_u8(iv.val[0], iv.val[1]), vorrq_u8(iv.val[2], iv.val[3])))
size_t tb64v128dec(const unsigned char *in, size_t inlen, unsigned char *out) {
const unsigned char *ip;
unsigned char *op;
const uint8x16x4_t vlut0 = vld1q_u8_x4( lut),
vlut1 = vld1q_u8_x4(&lut[64]);
const uint8x16_t cv40 = vdupq_n_u8(0x40);
uint8x16_t xv = vdupq_n_u8(0);
#define DN 256
for(ip = in, op = out; ip != in+(inlen&~(DN-1)); ip += DN, op += (DN/4)*3) { PREFETCH(ip,256,0);
uint8x16x4_t iv0 = vld4q_u8(ip),
iv1 = vld4q_u8(ip+64);
uint8x16x3_t ov0,ov1;
B64D(iv0, ov0);
#if DN > 128
CHECK1(_MM_B64CHK(iv0,xv));
#else
CHECK0(_MM_B64CHK(iv0,xv));
#endif
B64D(iv1, ov1); CHECK1(_MM_B64CHK(iv1,xv));
#if DN > 128
iv0 = vld4q_u8(ip+128);
iv1 = vld4q_u8(ip+192);
#endif
vst3q_u8(op, ov0);
vst3q_u8(op+48, ov1);
#if DN > 128
B64D(iv0,ov0); CHECK1(_MM_B64CHK(iv0,xv));
B64D(iv1,ov1);
vst3q_u8(op+ 96, ov0);
vst3q_u8(op+144, ov1);
CHECK0(_MM_B64CHK(iv1,xv));
#endif
}
for( ; ip != in+(inlen&~(64-1)); ip += 64, op += (64/4)*3) {
uint8x16x4_t iv = vld4q_u8(ip);
uint8x16x3_t ov; B64D(iv,ov);
vst3q_u8(op, ov);
CHECK0(xv = vorrq_u8(xv, vorrq_u8(vorrq_u8(iv.val[0], iv.val[1]), vorrq_u8(iv.val[2], iv.val[3]))));
}
size_t rc;
if(!(rc=tb64xdec(ip, inlen&(64-1), op)) || vaddvq_u8(vshrq_n_u8(xv,7))) return 0; //decode all
return (op-out)+rc;
}
//--------------------------------------------------------------------------------------------------
#define B64E(iv, ov) {\
ov.val[0] = vshrq_n_u8(iv.val[0], 2);\
ov.val[1] = vandq_u8(vorrq_u8(vshlq_n_u8(iv.val[0], 4), vshrq_n_u8(iv.val[1], 4)), cv3f);\
ov.val[2] = vandq_u8(vorrq_u8(vshlq_n_u8(iv.val[1], 2), vshrq_n_u8(iv.val[2], 6)), cv3f);\
ov.val[3] = vandq_u8( iv.val[2], cv3f);\
\
ov.val[0] = vqtbl4q_u8(vlut, ov.val[0]);\
ov.val[1] = vqtbl4q_u8(vlut, ov.val[1]);\
ov.val[2] = vqtbl4q_u8(vlut, ov.val[2]);\
ov.val[3] = vqtbl4q_u8(vlut, ov.val[3]);\
}
size_t tb64v128enc(const unsigned char* in, size_t inlen, unsigned char *out) {
static unsigned char lut[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const unsigned char *ip;
unsigned char *op;
const size_t outlen = TB64ENCLEN(inlen);
const uint8x16x4_t vlut = vld1q_u8_x4(lut);
const uint8x16_t cv3f = vdupq_n_u8(0x3f);
#define EN 128 // 256//
for(ip = in, op = out; op != out+(outlen&~(EN-1)); op += EN, ip += (EN/4)*3) {
uint8x16x3_t iv0 = vld3q_u8(ip),
iv1 = vld3q_u8(ip+48);
uint8x16x4_t ov0,ov1; B64E(iv0, ov0); B64E(iv1, ov1);
#if EN > 128
iv0 = vld3q_u8(ip+ 96);
iv1 = vld3q_u8(ip+144);
#endif
vst4q_u8(op, ov0);
vst4q_u8(op+64, ov1); //PREFETCH(ip,256,0);
#if EN > 128
B64E(iv0, ov0); B64E(iv1, ov1);
vst4q_u8(op+128, ov0);
vst4q_u8(op+192, ov1);
#endif
}
for( ; op != out+(outlen&~(64-1)); op += 64, ip += (64/4)*3) {
const uint8x16x3_t iv = vld3q_u8(ip);
uint8x16x4_t ov;
B64E(iv, ov);
vst4q_u8(op,ov);
}
EXTAIL();
return outlen;
}
#elif defined(__SSSE3__) //----------------- SSSE3 / SSE4.1 / AVX (derived from the AVX2 functions ) -----------------------------------------------------------------
//--------------- decode -------------------
#define DS128(_i_) {\
__m128i iv2 = _mm_loadu_si128((__m128i *)(ip+32+_i_*64 )),\
iv3 = _mm_loadu_si128((__m128i *)(ip+32+_i_*64+16));\
\
__m128i ov0,shifted0; MM_MAP8TO6(iv0, shifted0,delta_asso, delta_values, ov0); MM_PACK8TO6(ov0, cpv);\
__m128i ov1,shifted1; MM_MAP8TO6(iv1, shifted1,delta_asso, delta_values, ov1); MM_PACK8TO6(ov1, cpv);\
_mm_storeu_si128((__m128i*)(op+_i_*48) , ov0);\
_mm_storeu_si128((__m128i*)(op+_i_*48+12), ov1);\
CHECK0(MM_B64CHK(iv0, shifted0, check_asso, check_values, vx));\
CHECK1(MM_B64CHK(iv1, shifted1, check_asso, check_values, vx));\
\
iv0 = _mm_loadu_si128((__m128i *)(ip+32+_i_*64+32));\
iv1 = _mm_loadu_si128((__m128i *)(ip+32+_i_*64+48));\
\
__m128i ov2,shifted2; MM_MAP8TO6(iv2, shifted2,delta_asso, delta_values, ov2); MM_PACK8TO6(ov2, cpv);\
__m128i ov3,shifted3; MM_MAP8TO6(iv3, shifted3,delta_asso, delta_values, ov3); MM_PACK8TO6(ov3, cpv);\
_mm_storeu_si128((__m128i*)(op+_i_*48+24), ov2);\
_mm_storeu_si128((__m128i*)(op+_i_*48+36), ov3);\
CHECK1(MM_B64CHK(iv2, shifted2, check_asso, check_values, vx));\
CHECK1(MM_B64CHK(iv3, shifted3, check_asso, check_values, vx));\
}
size_t T2(FUNPREF, dec)(const unsigned char *__restrict in, size_t inlen, unsigned char *__restrict out) {
if(!inlen || (inlen&3)) return 0;
if(inlen <= 28) return _tb64xd(in, inlen, out);
const unsigned char *ip = in;
unsigned char *op = out;
#define DN 128
__m128i vx = _mm_setzero_si128();
const __m128i delta_asso = _mm_setr_epi8(0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x0f);
const __m128i delta_values = _mm_setr_epi8(0x00, 0x00, 0x00, 0x13, 0x04, 0xbf, 0xbf, 0xb9, 0xb9, 0x00, 0x10, 0xc3, 0xbf, 0xbf, 0xb9, 0xb9);
#ifndef NB64CHECK
const __m128i check_asso = _mm_setr_epi8(0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x03, 0x07, 0x0b, 0x0b, 0x0b, 0x0f);
const __m128i check_values = _mm_setr_epi8(0x80, 0x80, 0x80, 0x80, 0xcf, 0xbf, 0xd5, 0xa6, 0xb5, 0x86, 0xd1, 0x80, 0xb1, 0x80, 0x91, 0x80);
#endif
const __m128i cpv = _mm_set_epi8( -1, -1, -1, -1, 12, 13, 14, 8, 9, 10, 4, 5, 6, 0, 1, 2);
if(inlen > 28+64) {
__m128i iv0 = _mm_loadu_si128((__m128i *) ip);
__m128i iv1 = _mm_loadu_si128((__m128i *)(ip+16));
for(; ip < in+inlen-(32+DN); ip += DN, op += DN*3/4) { DS128(0); DS128(1); PREFETCH(ip,384,0); }
for(; ip < in+inlen-(28+64); ip += 64, op += 64*3/4) DS128(0);
}
for(; ip < (in+inlen)-16-4; ip += 16, op += 16*3/4) {
__m128i iv = _mm_loadu_si128((__m128i *)ip), ov, shifted0;
MM_MAP8TO6(iv, shifted0,delta_asso, delta_values, ov);
MM_PACK8TO6(ov, cpv);
_mm_storeu_si128((__m128i*) op, ov);
CHECK1(MM_B64CHK(iv, shifted0, check_asso, check_values, vx));
}
size_t rc;
if(!(rc = _tb64xd(ip, inlen-(ip-in), op)) || _mm_movemask_epi8(vx)) return 0;
return (op-out)+rc;
}
//---------------------- encode ------------------
#define ES128(_i_) {\
__m128i v0 = _mm_loadu_si128((__m128i*)(ip+24+_i_*48+ 0)),\
v1 = _mm_loadu_si128((__m128i*)(ip+24+_i_*48+12));\
\
u0 = _mm_shuffle_epi8(u0, shuf);\
u1 = _mm_shuffle_epi8(u1, shuf);\
u0 = mm_unpack6to8(u0);\
u1 = mm_unpack6to8(u1);\
u0 = mm_map6to8(u0);\
u1 = mm_map6to8(u1);\
_mm_storeu_si128((__m128i*)(op+_i_*64+ 0), u0);\
_mm_storeu_si128((__m128i*)(op+_i_*64+16), u1);\
\
u0 = _mm_loadu_si128((__m128i*)(ip+24+_i_*48+24));\
u1 = _mm_loadu_si128((__m128i*)(ip+24+_i_*48+36));\
\
v0 = _mm_shuffle_epi8(v0, shuf);\
v1 = _mm_shuffle_epi8(v1, shuf);\
v0 = mm_unpack6to8(v0);\
v1 = mm_unpack6to8(v1); \
v0 = mm_map6to8(v0);\
v1 = mm_map6to8(v1);\
_mm_storeu_si128((__m128i*)(op+_i_*64+32), v0);\
_mm_storeu_si128((__m128i*)(op+_i_*64+48), v1);\
}
size_t T2(FUNPREF, enc)(const unsigned char *__restrict in, size_t inlen, unsigned char *__restrict out) {
const unsigned char *ip = in;
unsigned char *op = out;
size_t outlen = TB64ENCLEN(inlen);
#define EN 128
const __m128i shuf = _mm_set_epi8(10,11, 9,10, 7, 8, 6, 7, 4, 5, 3, 4, 1, 2, 0, 1);
if(outlen > 32+64) {
__m128i u0 = _mm_loadu_si128((__m128i*) ip),
u1 = _mm_loadu_si128((__m128i*)(ip+12));
for(; op < (out+outlen)-(32+EN); op += EN, ip += EN*3/4) { ES128(0); ES128(1); /*PREFETCH(ip,256,0);*/ }
for(; op < (out+outlen)-(32+64); op += 64, ip += 64*3/4) ES128(0);
}
for(; op < out+(outlen-16); op += 16, ip += 16*3/4) {
__m128i v = _mm_loadu_si128((__m128i*)ip);
v = _mm_shuffle_epi8(v, shuf);
v = mm_unpack6to8(v);
v = mm_map6to8(v);
_mm_storeu_si128((__m128i*)op, v);
}
EXTAIL();
return outlen;
}
#endif
//-------------------------------------------------------------------------------------------------------------------
#if !defined(__AVX__) //include only 1 time
size_t tb64memcpy(const unsigned char* in, size_t inlen, unsigned char *out) {
memcpy(out, in, inlen);
return inlen;
}
static unsigned _cpuisa;
//--------------------- CPU detection -------------------------------------------
#if defined(__i386__) || defined(__x86_64__)
#if _MSC_VER >=1300
#include <intrin.h>
#elif defined (__INTEL_COMPILER)
#include <x86intrin.h>
#endif
static inline void cpuid(int reg[4], int id) {
#if defined (_MSC_VER) //|| defined (__INTEL_COMPILER)
__cpuidex(reg, id, 0);
#elif defined(__i386__) || defined(__x86_64__)
__asm("cpuid" : "=a"(reg[0]),"=b"(reg[1]),"=c"(reg[2]),"=d"(reg[3]) : "a"(id),"c"(0) : );
#endif
}
static inline uint64_t xgetbv (int ctr) {
#if(defined _MSC_VER && (_MSC_FULL_VER >= 160040219) || defined __INTEL_COMPILER)
return _xgetbv(ctr);
#elif defined(__i386__) || defined(__x86_64__)
unsigned a, d;
__asm("xgetbv" : "=a"(a),"=d"(d) : "c"(ctr) : );
return (uint64_t)d << 32 | a;
#else
unsigned a=0, d=0;
return (uint64_t)d << 32 | a;
#endif
}
#endif
#define AVX512F 0x001
#define AVX512DQ 0x002
#define AVX512IFMA 0x004
#define AVX512PF 0x008
#define AVX512ER 0x010
#define AVX512CD 0x020
#define AVX512BW 0x040
#define AVX512VL 0x080
#define AVX512VNNI 0x100
#define AVX512VBMI 0x200
#define AVX512VBMI2 0x400
#define IS_SSE 0x10
#define IS_SSE2 0x20
#define IS_SSE3 0x30
#define IS_SSSE3 0x32
#define IS_POWER9 0x34 // powerpc
#define IS_NEON 0x38 // arm neon
#define IS_SSE41 0x40
#define IS_SSE41x 0x41 //+popcount
#define IS_SSE42 0x42
#define IS_AVX 0x50
#define IS_AVX2 0x60
#define IS_AVX512 0x800
unsigned cpuisa(void) {
int c[4] = {0};
if(_cpuisa) return _cpuisa;
_cpuisa++;
#if defined(__i386__) || defined(__x86_64__)
cpuid(c, 0);
if(c[0]) {
cpuid(c, 1);
//family = ((c >> 8) & 0xf) + ((c >> 20) & 0xff)
//model = ((c >> 4) & 0xf) + ((c >> 12) & 0xf0)
if( c[3] & (1 << 25)) { _cpuisa = IS_SSE;
if( c[3] & (1 << 26)) { _cpuisa = IS_SSE2;
if( c[2] & (1 << 0)) { _cpuisa = IS_SSE3;
// _cpuisa = IS_SSE3SLOW; // Atom SSSE3 slow
if( c[2] & (1 << 9)) { _cpuisa = IS_SSSE3;
if( c[2] & (1 << 19)) { _cpuisa = IS_SSE41;
if( c[2] & (1 << 23)) { _cpuisa = IS_SSE41x; // +popcount
if( c[2] & (1 << 20)) { _cpuisa = IS_SSE42; // SSE4.2
if((c[2] & (1 << 28)) &&
(c[2] & (1 << 27)) && // OSXSAVE
(c[2] & (1 << 26)) && // XSAVE
(xgetbv(0) & 6)==6) { _cpuisa = IS_AVX; // AVX
if(c[2]& (1 << 3)) _cpuisa |= 1; // +FMA3
if(c[2]& (1 << 16)) _cpuisa |= 2; // +FMA4
if(c[2]& (1 << 25)) _cpuisa |= 4; // +AES
cpuid(c, 7);
if(c[1] & (1 << 5)) { _cpuisa = IS_AVX2;
if(c[1] & (1 << 16)) {
cpuid(c, 0xd);
if((c[0] & 0x60)==0x60) { _cpuisa = IS_AVX512;
cpuid(c, 7);
if(c[1] & (1<<16)) _cpuisa |= AVX512F;
if(c[1] & (1<<17)) _cpuisa |= AVX512DQ;
if(c[1] & (1<<21)) _cpuisa |= AVX512IFMA;
if(c[1] & (1<<26)) _cpuisa |= AVX512PF;
if(c[1] & (1<<27)) _cpuisa |= AVX512ER;
if(c[1] & (1<<28)) _cpuisa |= AVX512CD;
if(c[1] & (1<<30)) _cpuisa |= AVX512BW;
if(c[1] & (1u<<31)) _cpuisa |= AVX512VL;
if(c[2] & (1<< 1)) _cpuisa |= AVX512VBMI;
if(c[2] & (1<<11)) _cpuisa |= AVX512VNNI;
if(c[2] & (1<< 6)) _cpuisa |= AVX512VBMI2;
}}}
}}}}}}}}}
#elif defined(__powerpc64__)
_cpuisa = IS_POWER9; // power9
#elif defined(__ARM_NEON)
_cpuisa = IS_NEON; // ARM_NEON
#endif
return _cpuisa;
}
unsigned cpuini(unsigned cpuisa) { if(cpuisa) _cpuisa = cpuisa; return _cpuisa; }
char *cpustr(unsigned cpuisa) {
if(!cpuisa) cpuisa = _cpuisa;
#if defined(__i386__) || defined(__x86_64__)
if(cpuisa >= IS_AVX512) {
if(cpuisa & AVX512VBMI2) return "avx512vbmi2";
if(cpuisa & AVX512VBMI) return "avx512vbmi";
if(cpuisa & AVX512VNNI) return "avx512vnni";
if(cpuisa & AVX512VL) return "avx512vl";
if(cpuisa & AVX512BW) return "avx512bw";
if(cpuisa & AVX512CD) return "avx512cd";
if(cpuisa & AVX512ER) return "avx512er";
if(cpuisa & AVX512PF) return "avx512pf";
if(cpuisa & AVX512IFMA) return "avx512ifma";
if(cpuisa & AVX512DQ) return "avx512dq";
if(cpuisa & AVX512F) return "avx512f";
return "avx512";
}
else if(cpuisa >= IS_AVX2) return "avx2";
else if(cpuisa >= IS_AVX)
switch(cpuisa&0xf) {
case 1: return "avx+fma3";
case 2: return "avx+fma4";
case 4: return "avx+aes";
case 5: return "avx+fma3+aes";
default:return "avx";
}
else if(cpuisa >= IS_SSE42) return "sse4.2";
else if(cpuisa >= IS_SSE41x) return "sse4.1+popcnt";
else if(cpuisa >= IS_SSE41) return "sse4.1";
else if(cpuisa >= IS_SSSE3) return "ssse3";
else if(cpuisa >= IS_SSE3) return "sse3";
else if(cpuisa >= IS_SSE2) return "sse2";
else if(cpuisa >= IS_SSE) return "sse";
#elif defined(__powerpc64__)
if(cpuisa >= IS_POWER9) return "power9";
#elif defined(__ARM_NEON)
if(cpuisa >= IS_NEON) return "arm_neon";
#endif
return "none";
}
//---------------------------------------------------------------------------------
TB64FUNC _tb64e = tb64xenc;
TB64FUNC _tb64d = tb64xdec;
static int tb64set;
void tb64ini(unsigned id, unsigned isshort) {
int i;
if(tb64set) return;
tb64set++;
i = id?id:cpuisa();
#if defined(__i386__) || defined(__x86_64__)
#ifdef USE_AVX512
if(i >= IS_AVX512) {
_tb64e = i >= (IS_AVX512|AVX512VL)?tb64v256enc:tb64v256enc;
_tb64d = tb64v512dec;
} else
#endif
#ifndef NO_AVX2
if(i >= IS_AVX2) {
_tb64e = isshort?_tb64v256enc:tb64v256enc;
_tb64d = isshort?_tb64v256dec:tb64v256dec;
} else
#endif
#ifndef NO_AVX
if(i >= IS_AVX) {
_tb64e = tb64v128aenc;
_tb64d = tb64v128adec;
} else
#endif
#endif
#if defined(__i386__) || defined(__x86_64__) || defined(__ARM_NEON) || defined(__powerpc64__)
#ifndef NO_SSE
if(i >= IS_SSSE3) {
_tb64e = tb64v128enc;
_tb64d = tb64v128dec;
}
#endif
#endif
}
size_t tb64enc(const unsigned char *in, size_t inlen, unsigned char *out) {
if(!tb64set) tb64ini(0,0);
return _tb64e(in,inlen,out);
}
size_t tb64dec(const unsigned char *in, size_t inlen, unsigned char *out) {
if(!tb64set) tb64ini(0,0);
return _tb64d(in,inlen,out);
}
#endif