hcq/TurboPFor-Integer-Compression
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TurboPFor: TurboPFor encode

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2018-02-05 13:35:15 +01:00
parent 5b8e0dc680
commit fa4d008432
1 changed files with 42 additions and 2 deletions
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40
vp4c.c
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@ -113,9 +113,47 @@
#define USIZE 64
#include "vp4c.c"
#undef _P4ENC
#undef P4ENC
#undef BITPACK
#define PREFETCH(_ip_) __builtin_prefetch(_ip_+768,0)//#define PREFETCH(ip)
#define P4NDENC(in, n, out, _csize_, _usize_, _p4c_) { if(!n) return 0;\
unsigned char *op = out; \
start = *in++;\
TEMPLATE2(vbxput, _usize_)(op, start);\
for(n--,ip = in; ip != in + (n&~(_csize_-1)); ) { PREFETCH(ip+512);\
op = TEMPLATE2(_p4c_, _usize_)(ip, _csize_, op, start); ip += _csize_; start = ip[-1];\
} if(n&=(_csize_-1)) { op = TEMPLATE2(_p4c_, _usize_)(ip, n, op, start); }\
return op - out;\
}
#define P4NDDEC(in, n, out, _csize_, _usize_, _p4d_) { if(!n) return 0;\
unsigned char *ip = in;\
TEMPLATE2(vbxget, _usize_)(ip, start);\
for(*out++ = start,--n,op = out; op != out+(n&~(_csize_-1)); ) { PREFETCH(ip+512);\
ip = TEMPLATE2(_p4d_, _usize_)(ip, _csize_, op, start); op += _csize_; start = op[-1];\
} if(n&=(_csize_-1)) { ip = TEMPLATE2(_p4d_, _usize_)(ip, n, op, start); }\
return ip - in;\
}
unsigned char *p4senc16(uint16_t *in, unsigned n, unsigned char *out, uint16_t x) { uint16_t pa[128+32], mdelta = bitdi16(in, n, x); vbput16(out, mdelta); bitdienc16(in, n, pa, x, mdelta); return p4enc16(pa, n, out);}
unsigned char *p4senc32(uint32_t *in, unsigned n, unsigned char *out, uint32_t x) { uint32_t pa[128+32], mdelta = bitdi32(in, n, x); vbput32(out, mdelta); bitdienc32(in, n, pa, x, mdelta); return p4enc32(pa, n, out);}
unsigned char *p4senc64(uint64_t *in, unsigned n, unsigned char *out, uint64_t x) { uint64_t pa[128+64], mdelta = bitdi64(in, n, x); vbput64(out, mdelta); bitdienc64(in, n, pa, x, mdelta); return p4enc64(pa, n, out);}
unsigned char *p4sdec16(unsigned char *in, unsigned n, uint16_t *out, uint16_t x) { uint16_t mdelta; vbget16(in, mdelta); in = p4dec16(in, n, out); bitdidec16(out, n, x, mdelta); return in; }
unsigned char *p4sdec32(unsigned char *in, unsigned n, uint32_t *out, uint32_t x) { uint32_t mdelta; vbget32(in, mdelta); in = p4dec32(in, n, out); bitdidec32(out, n, x, mdelta); return in; }
unsigned char *p4sdec64(unsigned char *in, unsigned n, uint64_t *out, uint64_t x) { uint64_t mdelta; vbget64(in, mdelta); in = p4dec64(in, n, out); bitdidec64(out, n, x, mdelta); return in; }
size_t p4nsenc16(uint16_t *in, size_t n, unsigned char *out) { uint16_t *ip,start; P4NDENC(in, n, out, 128, 16, p4senc); }
size_t p4nsenc32(uint32_t *in, size_t n, unsigned char *out) { uint32_t *ip,start; P4NDENC(in, n, out, 128, 32, p4senc); }
size_t p4nsenc64(uint64_t *in, size_t n, unsigned char *out) { uint64_t *ip,start; P4NDENC(in, n, out, 128, 64, p4senc); }
size_t p4nsdec16(unsigned char *in, size_t n, uint16_t *out) { uint16_t *op,start; P4NDDEC(in, n, out, 128, 16, p4sdec); }
size_t p4nsdec32(unsigned char *in, size_t n, uint32_t *out) { uint32_t *op,start; P4NDDEC(in, n, out, 128, 32, p4sdec); }
size_t p4nsdec64(unsigned char *in, size_t n, uint64_t *out) { uint64_t *op,start; P4NDDEC(in, n, out, 128, 64, p4sdec); }
#endif
#undef _P4BITS
@ -136,6 +174,8 @@
#include "vp4c.c"
#define USIZE 32
#include "vp4c.c"
#define USIZE 64
#include "vp4c.c"
#define P4DELTA 0
#define P4DENC p4denc128v