| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| LZO_PUBLIC(lzo_bytep ) |
| STORE_RUN ( lzo_bytep const oo, const lzo_bytep const ii, lzo_uint r_len) |
| { |
| register lzo_bytep op; |
| register const lzo_bytep ip; |
| register lzo_uint t; |
| |
| LZO_STATS(lzo_stats->literals += r_len); |
| |
| op = oo; |
| ip = ii; |
| assert(r_len > 0); |
| |
| |
| if (r_len >= 512) |
| { |
| unsigned r_bits = 6; |
| lzo_uint tt = 32768u; |
| |
| while (r_len >= (t = tt)) |
| { |
| r_len -= t; |
| *op++ = 0; *op++ = (R0FAST - R0MIN) + 7; |
| MEMCPY8_DS(op, ip, t); |
| LZO_STATS(lzo_stats->r0long_runs++); |
| } |
| tt >>= 1; |
| do { |
| if (r_len >= (t = tt)) |
| { |
| r_len -= t; |
| *op++ = 0; *op++ = LZO_BYTE((R0FAST - R0MIN) + r_bits); |
| MEMCPY8_DS(op, ip, t); |
| LZO_STATS(lzo_stats->r0long_runs++); |
| } |
| tt >>= 1; |
| } while (--r_bits > 0); |
| } |
| assert(r_len < 512); |
| |
| while (r_len >= (t = R0FAST)) |
| { |
| r_len -= t; |
| *op++ = 0; *op++ = (R0FAST - R0MIN); |
| MEMCPY8_DS(op, ip, t); |
| LZO_STATS(lzo_stats->r0fast_runs++); |
| } |
| |
| t = r_len; |
| if (t >= R0MIN) |
| { |
| |
| *op++ = 0; *op++ = LZO_BYTE(t - R0MIN); |
| MEMCPY_DS(op, ip, t); |
| LZO_STATS(lzo_stats->r0short_runs++); |
| } |
| else if (t > 0) |
| { |
| |
| LZO_STATS(lzo_stats->lit_runs++); |
| LZO_STATS(lzo_stats->lit_run[t]++); |
| *op++ = LZO_BYTE(t); |
| MEMCPY_DS(op, ip, t); |
| } |
| |
| return op; |
| } |
| |
| |
| |
| |
| |
| |