daiduo/TurboPFor-Integer-Compression
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This commit is contained in:
powturbo
2015-06-21 18:53:51 +02:00
parent c5867bd9bd
commit dabd4c3272
1 changed files with 53 additions and 69 deletions
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122
vint.h
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@ -31,10 +31,11 @@
extern "C" {
#endif
//-------------------------------------- variable byte : 32 bits ----------------------------------------------------------------
#define vbvlen(__x) vtab[(__x)&0xf]
//--------- 32 bits ------------------
extern unsigned char vtab[];
#define vbvlen32(__x) vtab[(__x)&0xf]
#define vbputa(__op, __x, __act) {\
#define _vbput32(__op, __x, __act) {\
if(likely(__x < (1<< 7))) { *__op++ = __x << 1; __act;}\
else if(likely(__x < (1<<14))) { *(unsigned short *)__op = __x << 2 | 0x01; __op += 2; __act;}\
else if(likely(__x < (1<<21))) { *(unsigned short *)__op = __x << 3 | 0x03; __op += 2; *__op++ = __x >> 13; __act;}\
@ -42,7 +43,29 @@ extern "C" {
else { *(unsigned *)__op = __x << 4 | 0x0f; __op += 4; *__op++ = __x >> 28; __act;}\
}
#define vbputa64(__op, __x, __act) {\
//#define __AVX2__VINT
#if defined(__AVX2__) && defined(__AVX2__VINT)
#include <immintrin.h>
extern unsigned long long mtab[];
#define _vbget32(__ip, __x, __act) do { unsigned _vdx=(*__ip)&0xf; __x = _pext_u64(*(unsigned long long *)__ip, mtab[_vdx]); __ip+=vtab[_vdx]; __act; } while(0)
#else
#define _vbget32(__ip, __x, __act) do {\
if(!((__x = *__ip) & (1<<0))) { __ip++; __x >>= 1; __act;}\
else if(!(__x & (1<<1))) { __x = (*(unsigned short *)__ip) >> 2; __ip += 2; __act;}\
else if(!(__x & (1<<2))) { __x = (*(unsigned short *)__ip) >> 3 | (unsigned)(*(__ip+2)) << 13; __ip += 3; __act;}\
else if(!(__x & (1<<3))) { __x = (*(unsigned *)__ip) >> 4; __ip += 4; __act;}\
else { __x = (*(unsigned *)__ip) >> 4 | *(__ip+4) << 28; __ip += 5; __act;}\
} while(0)
#endif
//----------------- 16 bits --------------------------
#define _vbput16(__op, __x) _vbput32(__op, __x)
#define _vbget16(__ip, __x, __act) _vbget32(__ip, __x, __act)
//----------------- 64 bits --------------------------
#define _vbput64(__op, __x, __act) {\
if(__x < 1 << 7) { *__op++ = __x << 1; __act;}\
else if(__x < 1 <<14) { *(unsigned short *)__op = __x << 2 | 0x01; __op += 2; __act;}\
else if(__x < 1 <<21) { *(unsigned short *)__op = __x << 3 | 0x03; __op += 2; *__op++ = __x >> 13; __act;}\
@ -54,7 +77,7 @@ extern "C" {
else { *__op++ = 0xff; *(unsigned long long *)__op = __x; __op+=8; __act;}\
}
#define vbgeta64(__ip, __x, __act) do {\
#define _vbget64(__ip, __x, __act) do {\
if(!((__x = *__ip) & 1<<0)) { __ip++; __x >>= 1; __act;}\
else if(!(__x & 1<<1)) { __x = (*(unsigned short *)__ip) >> 2; __ip += 2; __act;}\
else if(!(__x & 1<<2)) { __x = (*(unsigned short *)__ip) >> 3 | *(__ip+2) << 13; __ip += 3; __act;}\
@ -66,84 +89,45 @@ extern "C" {
else { __x = *(unsigned long long *)(__ip+1); __ip += 9; __act;}\
} while(0)
//#define __AVX2__VINT
#if defined(__AVX2__) && defined(__AVX2__VINT)
#include <immintrin.h>
extern unsigned long long mtab[];
#define vbgeta(__ip, __x, __act) do { unsigned _vdx=(*__ip)&0xf; __x = _pext_u64(*(unsigned long long *)__ip, mtab[_vdx]); __ip+=vtab[_vdx]; __act; } while(0)
#else
#if 1
#define vbgeta(__ip, __x, __act) do {\
if(!((__x = *__ip) & (1<<0))) { __ip++; __x >>= 1; __act;}\
else if(!(__x & (1<<1))) { __x = (*(unsigned short *)__ip) >> 2; __ip += 2; __act;}\
else if(!(__x & (1<<2))) { __x = (*(unsigned short *)__ip) >> 3 | *(__ip+2) << 13; __ip += 3; __act;}\
else if(!(__x & (1<<3))) { __x = (*(unsigned *)__ip) >> 4; __ip += 4; __act;}\
else { __x = (*(unsigned *)__ip) >> 4 | *(__ip+4) << 28; __ip += 5; __act;}\
} while(0)
#else
#define vbgeta(__ip, __x, __act) do {\
if(!((__x = *__ip) & (1<<0))) { __ip++; __x >>= 1; __act;}\
else if(!((__x = *(unsigned short *)__ip) & (1<<1))) { __ip += 2; __x >>= 2; __act;}\
else if(!( __x & (1<<2))) { __ip += 3; __x = __x >> 3 | (unsigned)__ip[-1] << 13; __act;}\
else if(!((__x = *(unsigned *)__ip) & (1<<3))) { __ip += 4; __x >>= 4; __act;}\
else { __ip += 5; __x = __x >> 4 | (unsigned)__ip[-1] << 28; __act;}\
} while(0)
#endif
#endif
//------------------------------------------------------------------------------------------------------------------------
extern unsigned char vtab[];
//----------------------------- Variable byte functions -----------------------------------------------------------------------
// Length of uncompress value. Input __x is the compressed buffer start
#define vblen32(__x) ({ unsigned _x = __x; _x > 0x7f?(_x > 0x3fff?(_x > 0x1fffff?(_x > 0x0fffffff?5:4):3):2):1; })
// Length in bytes of compressed "__x" when using variable byte
#define vblen(__x) ({ unsigned _x = __x; _x > 0x7f?(_x > 0x3fff?(_x > 0x1fffff?(_x > 0x0fffffff?5:4):3):2):1; })
//------- encode/decode single value ----------
#define vbput16(__op, __x) vbput32(__op, __x)
#define vbget16(__ip) vbget32(__ip)
// encode/decode single value
#define vbput32(__op, __x) { unsigned _x_ = __x; vbputa(__op, _x_, ;); }
#define vbget32(__ip) ({ unsigned _x_; vbgeta(__ip, _x_, ;); _x_; })
#define vbput32(__op, __x) { unsigned _x_ = __x; _vbput32(__op, _x_, ;); }
#define vbget32(__ip) ({ unsigned _x_; _vbget32(__ip, _x_, ;); _x_; })
#define vbput(__op, __x) vbput32(__op, __x)
#define vbget(__ip) vbget32(__ip)
#define vbput16(__op, __x) vbput(__op, __x)
#define vbget16(__ip) vbget(__ip)
#define vbput64(__op, __x) { unsigned long long _x_ = __x; vbputa64(__op, _x_, ;); }
#define vbget64(__ip) ({ unsigned long long _x_; vbgeta64(__ip, _x_, ;); _x_; })
#define vbput64(__op, __x) { unsigned long long _x_ = __x; _vbput64(__op, _x_, ;); }
#define vbget64(__ip) ({ unsigned long long _x_; _vbget64(__ip, _x_, ;); _x_; })
// encode array with n unsigned (32 bits in[n]) values to the buffer out. Return value = end of compressed buffer out
unsigned char *vbenc16(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out);
unsigned char *vbenc32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out);
unsigned char *vbenc64(uint64_t *__restrict in, unsigned n, unsigned char *__restrict out);
//#define vbenc(in,n,out) vbenc32(in,n,out)
unsigned char *vbenc16(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out);
unsigned char *vbenc32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out);
unsigned char *vbenc64(uint64_t *__restrict in, unsigned n, unsigned char *__restrict out);
// decompress buffer into an array of n unsigned values. Return value = end of decompressed buffer in
unsigned char *vbdec16(unsigned char *__restrict in, unsigned n, unsigned short *__restrict out);
unsigned char *vbdec32(unsigned char *__restrict in, unsigned n, unsigned *__restrict out);
unsigned char *vbdec64(unsigned char *__restrict in, unsigned n, uint64_t *__restrict out);
//#define vbdec(in,n,out) vbdec32(in,n,out)
//---------------------------------- increasing integer lists -------------------------------------------------------------
unsigned char *vbdenc32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start);
unsigned char *vbddec32(unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start);
//#define vbdenc(in,n,out,start) vbdenc32(in,n,out,start)
//#define vbddec(in,n,out,start) vbddec32(in,n,out,start)
//------ decompress buffer into an array of n unsigned values. Return value = end of decompressed buffer in
unsigned char *vbdec16(unsigned char *__restrict in, unsigned n, unsigned short *__restrict out);
unsigned char *vbdec32(unsigned char *__restrict in, unsigned n, unsigned *__restrict out);
unsigned char *vbdec64(unsigned char *__restrict in, unsigned n, uint64_t *__restrict out);
//------ increasing integer lists -------------------------------------------------------------
unsigned char *vbdenc32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start);
unsigned char *vbddec32(unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start);
//---------------------------------- strictly increasing (never remaining constant or decreasing) integer lists------------
//----- strictly increasing (never remaining constant or decreasing) integer lists------------
unsigned char *vbd1enc32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start);
unsigned char *vbd1dec32(unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start);
//#define vbd1enc(in,n,out,start) vbd1enc32(in,n,out,start)
//#define vbd1dec(in,n,out,start) vbd1dec32(in,n,out,start)
//---------------------------------- variable byte : 15 bits integer lists ------------------------------------------------
//--- 15 bits integer lists ------------
#define vbput15(__op, __x) do { unsigned _x = __x; if(likely(_x < 0x80)) *__op++ = _x; else { *__op++ = (_x) >> 8 | 0x80; *__op++ = _x; } } while(0)
#define vbgeta15(__ip,__x, __act) do { if((__x = *__ip++) > 0x7f) __x = (__x & 0x7f) << 8 | *__ip++; __act; } while(0)
#define _vbget15(__ip,__x, __act) do { if((__x = *__ip++) > 0x7f) __x = (__x & 0x7f) << 8 | *__ip++; __act; } while(0)
#define vblen15(__x) ((__x) > 0x7f?2:1)
#define vbget15(__ip) ({ unsigned _x; vbgeta15(__ip, _x, ;); _x; })
unsigned char *vbenc15(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out);
unsigned char *vbdec15(unsigned char *__restrict in, unsigned n, unsigned short *__restrict out);
#define vbget15(__ip) ({ unsigned _x; _vbget15(__ip, _x, ;); _x; })
unsigned char *vbenc15( unsigned short *__restrict in, unsigned n, unsigned char *__restrict out);
unsigned char *vbdec15( unsigned char *__restrict in, unsigned n, unsigned short *__restrict out);
#ifdef __cplusplus
}