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BitUtil: Delta, ZigZag, NumBits, Floating Point,...

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2018-01-13 16:02:23 +01:00
parent 6eea9204d2
commit 07a3c092fa
1 changed files with 33 additions and 10 deletions
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43
bitutil.c
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@ -41,10 +41,33 @@ unsigned bit64(uint64_t *in, unsigned n) { uint64_t b; BITSIZE_( in, n, b, 64);
//---- Delta (min. Delta = 0)
//-- max. bits for delta encoding
unsigned bitd8( uint8_t *in, unsigned n, uint8_t start) { uint8_t b = 0,x; BITDE(uint8_t, in, n, 0, b |= x); return bsr8( b); }
unsigned bitd16(uint16_t *in, unsigned n, uint16_t start) { uint16_t b = 0,x; BITDE(uint16_t, in, n, 0, b |= x); return bsr16(b); }
unsigned bitd64(uint64_t *in, unsigned n, uint64_t start) { uint64_t b = 0,x; BITDE(uint64_t, in, n, 0, b |= x); return bsr64(b); }
unsigned bitd16(uint16_t *in, unsigned n, uint16_t start) {
#if defined(__SSE2__) && defined(USE_SSE)
uint16_t *ip,b; __m128i bv = _mm_setzero_si128(), sv = _mm_set1_epi16(start);
for(ip = in; ip != in+(n&~(8-1)); ip += 8) {
__m128i iv = _mm_loadu_si128((__m128i *)ip);
bv = _mm_or_si128(bv, DELTA128x16(iv,sv));
sv = iv;
}
start = (unsigned short)_mm_cvtsi128_si32(_mm_srli_si128(sv,14));
HOR128x16(bv, b);
while(ip != in+n) {
unsigned x = *ip-start;
start = *ip++;
b |= x;
}
#else
uint16_t b = 0,x;
BITDE(uint16_t,in,n, 0, b |= x);
#endif
return bsr32(b);
}
unsigned bitd32(uint32_t *in, unsigned n, uint32_t start) {
#ifdef __SSE2__
#if defined(__SSE2__) && defined(USE_SSE)
unsigned *ip,b; __m128i bv = _mm_setzero_si128(), sv = _mm_set1_epi32(start);
for(ip = in; ip != in+(n&~(4-1)); ip += 4) {
__m128i iv = _mm_loadu_si128((__m128i *)ip);
@ -90,7 +113,7 @@ void bitddec32(uint32_t *p, unsigned n, unsigned start) {
*ip = (start += (*ip));
ip++;
}
#elif defined(__SSE2__)
#elif defined(__SSE2__) && defined(USE_SSE)
__m128i sv = _mm_set1_epi32(start);
unsigned *ip;
for(ip = p; ip != p+(n&~(4-1)); ip += 4) {
@ -113,7 +136,7 @@ unsigned bitd18( uint8_t *in, unsigned n, uint8_t start) { uint8_t b = 0,x; B
unsigned bitd116(uint16_t *in, unsigned n, uint16_t start) { uint16_t b = 0,x; BITDE(uint16_t, in, n, 1, b |= x); return bsr16(b); }
unsigned bitd164(uint64_t *in, unsigned n, uint64_t start) { uint64_t b = 0,x; BITDE(uint64_t, in, n, 1, b |= x); return bsr64(b); }
unsigned bitd132(uint32_t *in, unsigned n, uint32_t start) {
#ifdef __SSE2__
#if defined(__SSE2__) && defined(USE_SSE)
unsigned *ip,b; __m128i bv = _mm_setzero_si128(), sv = _mm_set1_epi32(start), cv = _mm_set1_epi32(1);
for(ip = in; ip != in+(n&~(4-1)); ip += 4) {
__m128i iv = _mm_loadu_si128((__m128i *)ip);
@ -152,7 +175,7 @@ void bitd1dec32(uint32_t *p, unsigned n, uint32_t start) {
*ip = (start += (*ip) + 1);
ip++;
}
#elif defined(__SSE2__)
#elif defined(__SSE2__) && defined(USE_SSE)
__m128i sv = _mm_set1_epi32(start), cv = _mm_set_epi32(4,3,2,1);
unsigned *ip;
for(ip = p; ip != p+(n&~(4-1)); ip += 4) {
@ -187,7 +210,7 @@ unsigned bitdienc8( uint8_t *in, unsigned n, uint8_t *out, uint8_t start, uin
unsigned bitdienc16(uint16_t *in, unsigned n, uint16_t *out, uint16_t start, uint16_t mindelta) { uint16_t b = 0,*op = out,x; BITDE(uint16_t, in, n, mindelta, b |= x;*op++ = x); return bsr16(b);}
unsigned bitdienc64(uint64_t *in, unsigned n, uint64_t *out, uint64_t start, uint64_t mindelta) { uint64_t b = 0,*op = out,x; BITDE(uint64_t, in, n, mindelta, b |= x;*op++ = x); return bsr64(b);}
unsigned bitdienc32(uint32_t *in, unsigned n, uint32_t *out, uint32_t start, uint32_t mindelta) {
#ifdef __SSE2__
#if defined(__SSE2__) && defined(USE_SSE)
unsigned *ip,b,*op = out;
__m128i bv = _mm_setzero_si128(), sv = _mm_set1_epi32(start), cv = _mm_set1_epi32(mindelta), dv;
for(ip = in; ip != in+(n&~(4-1)); ip += 4,op += 4) {
@ -232,7 +255,7 @@ unsigned bitz8( uint8_t *in, unsigned n, uint8_t start) { uint8_t b = 0, x; B
unsigned bitz16(uint16_t *in, unsigned n, uint16_t start) { uint16_t b = 0, x; BITZENC(uint16_t, int16_t,in, n, b |= x); return bsr16(b); }
unsigned bitz64(uint64_t *in, unsigned n, uint64_t start) { uint64_t b = 0, x; BITZENC(uint64_t, int64_t,in, n, b |= x); return bsr64(b); }
unsigned bitz32(unsigned *in, unsigned n, unsigned start) {
#ifdef __SSE2__
#if defined(__SSE2__) && defined(USE_SSE)
unsigned *ip,b;
__m128i bv = _mm_setzero_si128(), sv = _mm_set1_epi32(start), dv;
for(ip = in; ip != in+(n&~(4-1)); ip += 4) {
@ -261,7 +284,7 @@ unsigned bitzenc8( uint8_t *in, unsigned n, uint8_t *out, uint8_t start, uint
unsigned bitzenc16(uint16_t *in, unsigned n, uint16_t *out, uint16_t start, uint16_t mindelta) { uint16_t b = 0,*op = out;uint16_t x; BITZENC(uint16_t, int16_t,in, n, b |= x; *op++ = x); return bsr16(b); }
unsigned bitzenc64(uint64_t *in, unsigned n, uint64_t *out, uint64_t start, uint64_t mindelta) { uint64_t b = 0,*op = out;uint64_t x; BITZENC(uint64_t, int64_t,in, n, b |= x; *op++ = x); return bsr32(b); }
unsigned bitzenc32(unsigned *in, unsigned n, unsigned *out, unsigned start, uint32_t mindelta) {
#ifdef __SSE2__
#if defined(__SSE2__) && defined(USE_SSE)
unsigned *ip,b,*op = out;
__m128i bv = _mm_setzero_si128(), sv = _mm_set1_epi32(start), dv;
for(ip = in; ip != in+(n&~(4-1)); ip += 4,op += 4) {
@ -298,7 +321,7 @@ void bitzdec8( uint8_t *p, unsigned n, uint8_t start) { BITZDEC(uint8_t, p, n
void bitzdec64(uint64_t *p, unsigned n, uint64_t start) { BITZDEC(uint64_t, p, n); }
void bitzdec16(uint16_t *p, unsigned n, uint16_t start) {
#if defined(__SSSE3__)
#if defined(__SSSE3__) && defined(USE_SSE)
__m128i sv = _mm_set1_epi16(start); //, c1 = _mm_set1_epi32(1), cz = _mm_setzero_si128();
uint16_t *ip;
for(ip = p; ip != p+(n&~(8-1)); ip += 8) {
@ -332,7 +355,7 @@ void bitzdec32(unsigned *p, unsigned n, unsigned start) {
unsigned z = *ip;
*ip++ = (start += (z >> 1 ^ -(z & 1)));
}
#elif defined(__SSE2__)
#elif defined(__SSE2__) && defined(USE_SSE)
__m128i sv = _mm_set1_epi32(start); //, c1 = _mm_set1_epi32(1), cz = _mm_setzero_si128();
unsigned *ip;
for(ip = p; ip != p+(n&~(4-1)); ip += 4) {