| 77 | } |
| 78 | |
| 79 | static void split_feat_desc(vector<feat_desc_t>& fd, vector<feat_t>& f, |
| 80 | vector<desc_t>& d) { |
| 81 | f.resize(fd.size()); |
| 82 | d.resize(fd.size()); |
| 83 | for (size_t i = 0; i < fd.size(); i++) { |
| 84 | f[i].f[0] = fd[i].f[0]; |
| 85 | f[i].f[1] = fd[i].f[1]; |
| 86 | f[i].f[2] = fd[i].f[2]; |
| 87 | f[i].f[3] = fd[i].f[3]; |
| 88 | f[i].f[4] = fd[i].f[4]; |
| 89 | for (unsigned j = 0; j < 8; j++) d[i].d[j] = fd[i].d[j]; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | static unsigned popcount(unsigned x) { |
| 94 | x = x - ((x >> 1) & 0x55555555); |