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Variable Byte

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This commit is contained in:
powturbo
2015-06-11 20:38:45 +02:00
parent cd09e6fafb
commit da3b65b0c9
1 changed files with 7 additions and 6 deletions
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13
vint.c
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@ -36,7 +36,7 @@
#define M4 0xfffffff0ull //28 #define M4 0xfffffff0ull //28
#define M5 0xfffffffff0ull //36 #define M5 0xfffffffff0ull //36
//0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 //0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111
unsigned long long mtab[] = { M1, M2, M1, M3, M1, M2, M1, M4, M1, M2, M1, M3, M1, M2, M1, M5 }; unsigned long long mtab[] = { M1, M2, M1, M3, M1, M2, M1, M4, M1, M2, M1, M3, M1, M2, M1, M5 };
#endif #endif
//------------------------------------------------------------------------------------------------------------------------ //------------------------------------------------------------------------------------------------------------------------
@ -161,8 +161,9 @@ unsigned char *vbd1dec(unsigned char *__restrict in, unsigned n, unsigned *__res
return in; return in;
} }
//--------------------------------------- variable byte : 15 bits ------------------------------------------------------------------- //--------------------------------------- variable byte : 16/15 bits -------------------------------------------------------------------
// like vbenc32 but for 16 bits values unsigned char *vbenc15(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned short *in_ = in +n; while(in < in_) vbput15(out, *in++); return out;}
unsigned char *vbenc16(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned short *in_ = in +n; while(in < in_) vbput16(out, *in++); return out;} unsigned char *vbdec15(unsigned char *__restrict in, unsigned n, unsigned short *__restrict out) { unsigned short *out_ = out+n,x; while(out < out_) vbgeta15(in, x, *out++ = x); return in; }
// like vbdec32 but for 16 bits values
unsigned char *vbdec16(unsigned char *__restrict in, unsigned n, unsigned short *__restrict out) { unsigned short *out_ = out+n,x; while(out < out_) vbgeta16(in, x, *out++ = x); return in; } unsigned char *vbenc16(unsigned short *__restrict in, unsigned n, unsigned char *__restrict out) { unsigned short *in_ = in +n; while(in < in_) vbput(out, *in++); return out;}
unsigned char *vbdec16(unsigned char *__restrict in, unsigned n, unsigned short *__restrict out) { unsigned short *out_ = out+n,x; while(out < out_) vbgeta(in, x, *out++ = x); return in; }