TurboPFor: Floating Point encode/decode
This commit is contained in:
x
284
fp.c
284
fp.c
@ -39,7 +39,7 @@
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#define DEC64(u,h) zigzagdec64(u)+(int64_t)h
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//---- Last value Predictor
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unsigned char *fppenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t start) {
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unsigned char *fppenc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
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uint64_t *ip, _p[VSIZE], *p;
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#define FE64(i) { uint64_t u = ip[i]; p[i] = ENC64(u, start); start = u; }
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@ -54,7 +54,7 @@ unsigned char *fppenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t s
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return out;
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}
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unsigned char *fppdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t start) {
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unsigned char *fppdec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) {
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uint64_t *op, _p[VSIZE+32],*p;
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#define FD64(i) { uint64_t u = DEC64(p[i], start); op[i] = u; start = u; }
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@ -67,7 +67,7 @@ unsigned char *fppdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t s
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}
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// delta of delta
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unsigned char *fpddenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t start) {
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unsigned char *fpddenc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
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uint64_t *ip, _p[VSIZE], *p; int64_t pd=0;
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#define FE64(i) { uint64_t u = ip[i],d = u-start; p[i] = ENC64((int64_t)d,pd); pd = d; start = u; }
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@ -82,7 +82,7 @@ unsigned char *fpddenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t
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return out;
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}
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unsigned char *fpdddec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t start) {
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unsigned char *fpdddec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) {
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uint64_t *op, h = 0, _p[VSIZE+32],*p, pd=0;
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#define FD64(i) { uint64_t u = DEC64(p[i],start+pd); op[i] = u; pd = u - start; start = u; }
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@ -97,7 +97,7 @@ unsigned char *fpdddec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t
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#define HBITS 13 //15
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#define HASH64(_h_,_u_) (((_h_)<<5 ^ (_u_)>>50) & ((1u<<HBITS)-1))
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//---- FCM: Finite Context Method Predictor
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unsigned char *fpfcmenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t start) {
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unsigned char *fpfcmenc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
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uint64_t *ip, htab[1<<HBITS] = {0}, h = 0, _p[VSIZE], *p;
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#define FE64(i) { uint64_t u = ip[i]; p[i] = ENC64(u, htab[h]); htab[h] = u; h = HASH64(h,u); }
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@ -112,7 +112,7 @@ unsigned char *fpfcmenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t
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return out;
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}
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unsigned char *fpfcmdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t start) {
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unsigned char *fpfcmdec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) {
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uint64_t *op, htab[1<<HBITS] = {0}, h = 0, _p[VSIZE+32],*p;
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#define FD64(i) { uint64_t u = DEC64(p[i], htab[h]); op[i] = u; htab[h] = u; h = HASH64(h,u); }
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@ -125,7 +125,7 @@ unsigned char *fpfcmdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t
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}
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// DFCM: Differential Finite Context Method Predictor
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unsigned char *fpdfcmenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t start) {
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unsigned char *fpdfcmenc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
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uint64_t *ip, _p[VSIZE+32], h = 0, *p, htab[1<<HBITS] = {0};
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#define DE64(i) { uint64_t u = ip[i]; p[i] = ENC64(u, (htab[h]+start)); htab[h] = start = u - start; h = HASH64(h,start); start = u; }
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@ -140,7 +140,7 @@ unsigned char *fpdfcmenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_
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return out;
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}
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unsigned char *fpdfcmdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t start) {
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unsigned char *fpdfcmdec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) {
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uint64_t _p[VSIZE+32], *op, h = 0, *p, htab[1<<HBITS] = {0};
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#define DD64(i) { uint64_t u = DEC64(p[i], (htab[h]+start)); op[i] = u; htab[h] = start = u-start; h = HASH64(h,start); start = u; }
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@ -175,11 +175,11 @@ unsigned char *fpdfcmdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_
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#define bitdnorm( _bw_,_br_,_ip_) _bw_ = ctou64(_ip_ += (_br_>>3)), _br_ &= 7
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#define bitalign( _bw_,_br_,_ip_) _ip_ += (_br_+7)>>3
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#define bitput64(bw,br,_b_,_x_,_op_) if(_b_>45) { bitput(bw,br,_b_-32, (_x_)>>32); bitenorm(bw,br,_op_); bitput(bw,br,32,(unsigned)(_x_)); } else bitput(bw,br,_b_,_x_);
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#define bitget64(bw,br,_b_,_x_,_ip_) if(_b_>45) { unsigned _v; bitget(bw,br,_b_-32,_x_); bitdnorm(bw,br,_ip_); bitget(bw,br,32,_v); _x_ = _x_<<32|_v; } else bitget(bw,br,_b_,_x_);
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#define bitput64(bw,br,_b_,_x_,_op_) if((_b_)>45) { bitput(bw,br,(_b_)-32, (_x_)>>32); bitenorm(bw,br,_op_); bitput(bw,br,32,(unsigned)(_x_)); } else bitput(bw,br,_b_,_x_);
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#define bitget64(bw,br,_b_,_x_,_ip_) if((_b_)>45) { unsigned _v; bitget(bw,br,(_b_)-32,_x_); bitdnorm(bw,br,_ip_); bitget(bw,br,32,_v); _x_ = _x_<<32|_v; } else bitget(bw,br,_b_,_x_);
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// Fastest Gorilla (see Facebook paper) Floating point/Integer compression implementation using zigzag encoding instead of XOR. Compression 5 GB/s, Decompression: 10 GB/s
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unsigned char *fpgenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t start) {
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unsigned char *fpgenc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
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uint64_t *ip;
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unsigned ol = 0,ot = 0;
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bitdef(bw,br);
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@ -196,7 +196,7 @@ unsigned char *fpgenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t s
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return out;
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}
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unsigned char *fpgdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t start) { if(!n) return in;
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unsigned char *fpgdec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) { if(!n) return in;
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uint64_t *op;
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unsigned ol = 0,ot = 0,x;
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bitdef(bw,br);
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@ -212,10 +212,183 @@ unsigned char *fpgdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t s
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}
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// Improved Gorilla style compression with sliding double delta for timestamps in time series.
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// Up to 300 times better compression and several times faster
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#define N2 7 // for seconds time series
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#define N3 9
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#define N4 12
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unsigned char *bitgenc32(uint32_t *in, unsigned n, unsigned char *out, uint32_t start) {
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#define N4 12
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#define NL 18
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#define ENC32(_pp_, _ip_, _d_, _op_) do {\
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size_t _r = _ip_ - _pp_;\
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if(_r > NL) { _r -= NL; unsigned _b = (bsr32(_r)+7)>>3; bitput(bw,br,4+3+3,(_b-1)<<(4+3)); bitput64(bw,br,_b<<3, _r, _op_); bitenorm(bw,br,out); }\
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else while(_r--) { bitput(bw,br,1,1); bitenorm(bw,br,out); }\
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_d_ = zigzagenc32(_d_);\
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if(!_d_) bitput(bw,br, 1, 1);\
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else if(_d_ < (1<< (N2-1))) bitput(bw,br, N2+2,_d_<<2|2);\
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else if(_d_ < (1<< (N3-1))) bitput(bw,br, N3+3,_d_<<3|4);\
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else if(_d_ < (1<< (N4-1))) bitput(bw,br, N4+4,_d_<<4|8);\
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else { unsigned _b = (bsr32(_d_)+7)>>3; bitput(bw,br,4+3,(_b-1)<<4); bitput(bw,br, _b<<3, _d_); }\
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bitenorm(bw,br,out);\
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} while(0)
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unsigned char *bitgenc32(uint32_t *in, size_t n, unsigned char *out, uint32_t start) {
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uint32_t *ip = in, pd = 0, *pp = in,dd;
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bitdef(bw,br);
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if(n > 4)
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for(; ip < in+(n-1-4);) {
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++; __builtin_prefetch(ip+256, 0);
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continue;
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a:;
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ENC32(pp,ip, dd, out);
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pp = ++ip;
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}
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for(;ip < in+n;) {
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto b; ip++;
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continue;
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b:;
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ENC32(pp,ip, dd, out);
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pp = ++ip;
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}
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if(ip > pp) {
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start = ip[0] - start; dd = start-pd;
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ENC32(pp, ip, dd, out);
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}
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bitflush(bw,br,out);
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return out;
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}
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unsigned char *bitgdec32(unsigned char *in, size_t n, uint32_t *out, uint32_t start) { if(!n) return in;
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uint32_t *op = out, pd = 0;
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bitdef(bw,br);
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for(bitdnorm(bw,br,in); op < out+n; ) { __builtin_prefetch(in+384, 0);
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uint32_t dd = bitpeek(bw,br);
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if(dd & 1) bitrmv(bw,br, 0+1), dd = 0;
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else if(dd & 2) bitrmv(bw,br,N2+2), dd = _bzhi_u32(dd>>2, N2);
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else if(dd & 4) bitrmv(bw,br,N3+3), dd = _bzhi_u32(dd>>3, N3);
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else if(dd & 8) bitrmv(bw,br,N4+4), dd = _bzhi_u32(dd>>4, N4);
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else {
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unsigned b,*_op; size_t r;
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bitget(bw,br, 4+3, b);
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if(!b) {
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bitget(bw,br,3,b); bitget64(bw,br,(b+1)*8,r,in); bitdnorm(bw,br,in);
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for(r+=NL, _op = op; op != _op+(r&~7); op += 8)
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op[0]=(start+=pd),
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op[1]=(start+=pd),
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op[2]=(start+=pd),
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op[3]=(start+=pd),
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op[4]=(start+=pd),
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op[5]=(start+=pd),
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op[6]=(start+=pd),
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op[7]=(start+=pd);
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for(; op != _op+r; op++)
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*op = (start+=pd);
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continue;
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}
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bitget(bw,br,((b>>4)+1)*8,dd);
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}
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pd += zigzagdec32(dd);
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*op++ = (start += pd);
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bitdnorm(bw,br,in);
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}
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return bitalign(bw,br,in);
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}
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#define N2 6 // for seconds/milliseconds,... time series
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#define N3 12
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#define N4 20
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#define ENC64(_pp_, _ip_, _d_, _op_) do {\
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uint64_t _r = _ip_ - _pp_;\
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if(_r > NL) { _r -= NL; unsigned _b = (bsr64(_r)+7)>>3; bitput(bw,br,4+3+3,(_b-1)<<(4+3)); bitput64(bw,br,_b<<3, _r, _op_); bitenorm(bw,br,out); }\
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else while(_r--) { bitput(bw,br,1,1); bitenorm(bw,br,out); }\
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_d_ = zigzagenc64(_d_);\
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if(!_d_) bitput(bw,br, 1, 1);\
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else if(_d_ < (1<< (N2-1))) bitput(bw,br, N2+2,_d_<<2|2);\
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else if(_d_ < (1<< (N3-1))) bitput(bw,br, N3+3,_d_<<3|4);\
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else if(_d_ < (1<< (N4-1))) bitput(bw,br, N4+4,_d_<<4|8);\
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else { unsigned _b = (bsr64(_d_)+7)>>3; bitput(bw,br,4+3,(_b-1)<<4); bitput64(bw,br, _b<<3, _d_,_op_); }\
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bitenorm(bw,br,out);\
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} while(0)
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unsigned char *bitgenc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
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uint64_t *ip = in, pd = 0, *pp = in,dd;
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bitdef(bw,br);
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if(n > 4)
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for(; ip < in+(n-1-4);) {
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++; __builtin_prefetch(ip+256, 0);
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continue;
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a:;
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ENC64(pp,ip, dd, out);
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pp = ++ip;
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}
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for(;ip < in+n;) {
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start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto b; ip++;
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continue;
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b:;
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ENC64(pp,ip, dd, out);
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pp = ++ip;
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}
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if(ip > pp) {
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start = ip[0] - start; dd = start-pd;
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ENC64(pp, ip, dd, out);
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}
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bitflush(bw,br,out);
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return out;
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}
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unsigned char *bitgdec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) { if(!n) return in;
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uint64_t *op = out, pd = 0;
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bitdef(bw,br);
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for(bitdnorm(bw,br,in); op < out+n; ) { __builtin_prefetch(in+384, 0);
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uint64_t dd = bitpeek(bw,br);
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if(dd & 1) bitrmv(bw,br, 0+1), dd = 0;
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else if(dd & 2) bitrmv(bw,br,N2+2), dd = _bzhi_u64(dd>>2, N2);
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else if(dd & 4) bitrmv(bw,br,N3+3), dd = _bzhi_u64(dd>>3, N3);
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else if(dd & 8) bitrmv(bw,br,N4+4), dd = _bzhi_u64(dd>>4, N4);
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else {
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unsigned b; uint64_t r,*_op;
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bitget(bw,br, 4+3, b);
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if(!b) {
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bitget(bw,br,3,b); bitget64(bw,br,(b+1)*8,r,in); bitdnorm(bw,br,in);
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//r+=NL; while(r--) *op++=(start+=pd);
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for(r+=NL, _op = op; op != _op+(r&~7); op += 8)
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op[0]=(start+=pd),
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op[1]=(start+=pd),
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op[2]=(start+=pd),
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op[3]=(start+=pd),
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op[4]=(start+=pd),
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op[5]=(start+=pd),
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op[6]=(start+=pd),
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op[7]=(start+=pd);
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for(; op != _op+r; op++)
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*op = (start+=pd);
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continue;
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}
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bitget64(bw,br,((b>>4)+1)*8,dd,in);
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}
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pd += zigzagdec64(dd);
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*op++ = (start += pd);
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bitdnorm(bw,br,in);
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}
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return bitalign(bw,br,in);
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}
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#if 0
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// Initial implementation without RLE
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#define N2 7 // for seconds time series
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#define N3 9
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#define N4 12
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unsigned char *bitg0enc32(uint32_t *in, size_t n, unsigned char *out, uint32_t start) {
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uint32_t *ip, pd = 0;
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bitdef(bw,br);
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@ -233,7 +406,7 @@ unsigned char *bitgenc32(uint32_t *in, unsigned n, unsigned char *out, uint32_t
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return out;
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}
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unsigned char *bitgdec32(unsigned char *in, unsigned n, uint32_t *out, uint32_t start) { if(!n) return in;
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unsigned char *bitg0dec32(unsigned char *in, size_t n, uint32_t *out, uint32_t start) { if(!n) return in;
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uint32_t *op, pd = 0;
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bitdef(bw,br);
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@ -253,11 +426,11 @@ unsigned char *bitgdec32(unsigned char *in, unsigned n, uint32_t *out, uint32_t
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#define N2 6 // for seconds/milliseconds,... time series
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#define N3 12
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#define N4 20
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unsigned char *bitgenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t start) {
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unsigned char *bitg0enc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
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uint64_t *ip, pd = 0;
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bitdef(bw,br);
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#define FE64(i) { uint64_t dd; start = ip[i] - start; dd = start-pd; pd = start; dd = zigzagenc64(dd); start = ip[i];\
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#define FE64(i) { uint64_t dd; start = (int64_t)ip[i] - (int64_t)start; dd = (int64_t)start-(int64_t)pd; pd = start; dd = zigzagenc64(dd); start = ip[i];\
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if(!dd) bitput(bw,br, 1, 1);\
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else if(dd < (1<< (N2-1))) bitput(bw,br, N2+2,dd<<2|2);\
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else if(dd < (1<< (N3-1))) bitput(bw,br, N3+3,dd<<3|4);\
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@ -271,7 +444,7 @@ unsigned char *bitgenc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t
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return out;
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}
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unsigned char *bitgdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t start) { if(!n) return in;
|
||||
unsigned char *bitg0dec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) { if(!n) return in;
|
||||
uint64_t *op, pd = 0;
|
||||
bitdef(bw,br);
|
||||
|
||||
@ -280,10 +453,81 @@ unsigned char *bitgdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t
|
||||
else if(dd & 2) bitrmv(bw,br,N2+2), dd = _bzhi_u64(dd>>2, N2);\
|
||||
else if(dd & 4) bitrmv(bw,br,N3+3), dd = _bzhi_u64(dd>>3, N3);\
|
||||
else if(dd & 8) bitrmv(bw,br,N4+4), dd = _bzhi_u64(dd>>4, N4);\
|
||||
else { unsigned _b; bitget(bw,br,4+3,_b); bitget64(bw,br,((_b>>4)+1)*8,dd,in); }\
|
||||
pd += zigzagdec64(dd); op[i] = (start += pd); bitdnorm(bw,br,in);\
|
||||
else { unsigned _b; bitget(bw,br,4+3,_b); _b = ((_b>>4)+1)*8; bitget64(bw,br,_b,dd,in); }\
|
||||
pd += zigzagdec64(dd); start += pd; op[i] = start; bitdnorm(bw,br,in);\
|
||||
}
|
||||
for(bitdnorm(bw,br,in),op = out; op != out+(n&~(4-1)); op+=4) { FD64(0); FD64(1); FD64(2); FD64(3); __builtin_prefetch(in+512, 0); }
|
||||
for(; op != out+n; op++) FD64(0);
|
||||
return bitalign(bw,br,in);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*unsigned char *bitgenc64(uint64_t *in, size_t n, unsigned char *out, uint64_t start) {
|
||||
uint64_t *ip = in, pd = 0, *pp = in,dd;
|
||||
|
||||
bitdef(bw,br);
|
||||
if(n > 4)
|
||||
for(; ip < in+(n-1-4);) {
|
||||
start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
|
||||
start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
|
||||
start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++;
|
||||
start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto a; ip++; __builtin_prefetch(ip+256, 0);
|
||||
continue;
|
||||
a:;
|
||||
ENC64(pp,ip, dd, out);
|
||||
pp = ++ip;
|
||||
}
|
||||
|
||||
for(;ip < in+n;) {
|
||||
start = ip[0] - start; dd = start-pd; pd = start; start = ip[0]; if(dd) goto b; ip++; continue;
|
||||
b: ENC64(pp,ip, dd, out);
|
||||
pp = ++ip;
|
||||
}
|
||||
if(ip > pp) {
|
||||
start = ip[0] - start; dd = start-pd;
|
||||
ENC64(pp, ip, dd, out);
|
||||
}
|
||||
bitflush(bw,br,out);
|
||||
return out;
|
||||
}
|
||||
|
||||
unsigned char *bitgdec64(unsigned char *in, size_t n, uint64_t *out, uint64_t start) { if(!n) return in;
|
||||
uint64_t *op = out, pd = 0;
|
||||
bitdef(bw,br);
|
||||
for(bitdnorm(bw,br,in); op < out+n; ) { __builtin_prefetch(in+384, 0);
|
||||
uint32_t dd = bitpeek(bw,br);
|
||||
if(dd & 1) bitrmv(bw,br, 0+1), dd = 0;
|
||||
else if(dd & 2) bitrmv(bw,br,N2+2), dd = _bzhi_u32(dd>>2, N2);
|
||||
else if(dd & 4) bitrmv(bw,br,N3+3), dd = _bzhi_u32(dd>>3, N3);
|
||||
else if(dd & 8) bitrmv(bw,br,N4+4), dd = _bzhi_u32(dd>>4, N4);
|
||||
else {
|
||||
unsigned b; size_t r; uint64_t *_op;
|
||||
bitget(bw,br, 4+3, b);
|
||||
if(!b) {
|
||||
bitget(bw,br,3,b); bitget64(bw,br,(b+1)*8,r,in); bitdnorm(bw,br,in);
|
||||
for(r+=NL, _op = op; op != _op+(r&~7); op += 8)
|
||||
op[0]=(start+=pd),
|
||||
op[1]=(start+=pd),
|
||||
op[2]=(start+=pd),
|
||||
op[3]=(start+=pd),
|
||||
op[4]=(start+=pd),
|
||||
op[5]=(start+=pd),
|
||||
op[6]=(start+=pd),
|
||||
op[7]=(start+=pd);
|
||||
for(; op != _op+r; op++)
|
||||
*op = (start+=pd);
|
||||
continue;
|
||||
}
|
||||
uint64_t dd;
|
||||
bitget64(bw,br,((b>>4)+1)*8,dd,in);
|
||||
pd += zigzagdec64(dd);
|
||||
*op++ = (start += pd);
|
||||
bitdnorm(bw,br,in); continue;
|
||||
}
|
||||
pd += zigzagdec32(dd);
|
||||
*op++ = (start += pd);
|
||||
bitdnorm(bw,br,in);
|
||||
}
|
||||
return bitalign(bw,br,in);
|
||||
}
|
||||
*/
|
||||
|
||||
Reference in New Issue
Block a user