43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
#include <stdlib.h>
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#include "mmpriv.h"
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void mm_select_sub_multi(void *km, float pri_ratio, float pri1, float pri2, int max_gap_ref, int min_diff, int best_n, int n_segs, const int *qlens, int *n_, mm_reg1_t *r)
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{
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if (pri_ratio > 0.0f && *n_ > 0) {
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int i, k, n = *n_, n_2nd = 0;
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int max_dist = n_segs == 2? qlens[0] + qlens[1] + max_gap_ref : 0;
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for (i = k = 0; i < n; ++i) {
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int to_keep = 0;
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if (r[i].parent == i) { // primary
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to_keep = 1;
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} else if (r[i].score + min_diff >= r[r[i].parent].score) {
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to_keep = 1;
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} else {
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mm_reg1_t *p = &r[r[i].parent], *q = &r[i];
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if (p->rev == q->rev && p->rid == q->rid && q->re - p->rs < max_dist && p->re - q->rs < max_dist) { // child and parent are close on the ref
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if (q->score >= p->score * pri1)
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to_keep = 1;
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} else {
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int is_par_both = (n_segs == 2 && p->qs < qlens[0] && p->qe > qlens[0]);
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int is_chi_both = (n_segs == 2 && q->qs < qlens[0] && q->qe > qlens[0]);
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if (is_chi_both || is_chi_both == is_par_both) {
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if (q->score >= p->score * pri_ratio)
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to_keep = 1;
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} else { // the remaining case: is_chi_both == 0 && is_par_both == 1
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if (q->score >= p->score * pri2)
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to_keep = 1;
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}
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}
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}
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if (to_keep && r[i].parent != i) {
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if (n_2nd++ >= best_n) to_keep = 0; // don't keep if there are too many secondary hits
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}
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if (to_keep) r[k++] = r[i];
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else if (r[i].p) free(r[i].p);
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}
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if (k != n) mm_sync_regs(km, k, r); // removing hits requires sync()
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*n_ = k;
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}
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}
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