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code backup; it is wrong

This commit is contained in:
Heng Li 2013-02-03 17:25:40 -05:00
parent 92b084e553
commit e8a1962efe
2 changed files with 21 additions and 10 deletions
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27
ksw.c
View File

@ -314,7 +314,7 @@ int ksw_sse2(ksw_query_t *q, int tlen, const uint8_t *target, ksw_aux_t *a)
typedef struct {
int32_t h, e;
} eh_t;
#include <stdio.h>
int ksw_extend(int qlen, const uint8_t *query, int tlen, const uint8_t *target, int m, const int8_t *mat, int gapo, int gape, int w, int h0, const int *qw, int *_qpos, int *_tpos)
{
eh_t *eh;
@ -324,20 +324,24 @@ int ksw_extend(int qlen, const uint8_t *query, int tlen, const uint8_t *target,
eh = calloc(qlen + 1, 8);
qp = malloc(qlen * m);
// generate the query profile
for (j = i = 0; j < qlen; ++j) {
const int8_t *p = &mat[query[j] * m];
for (k = 0; k < m; ++j) qp[i++] = p[k];
for (k = i = 0; k < m; ++k) {
const int8_t *p = &mat[k * m];
for (j = 0; j < qlen; ++j) qp[i++] = p[query[j]];
}
// fill the first row
eh[0].h = h0;
// DP loop
eh[0].h = h0; max = 0, max_i = max_j = -1;
beg = 0, end = 1;
max = 0, max_i = max_j = -1;
beg = 0, end = qlen;
for (i = 0; LIKELY(i < tlen); ++i) {
int f = 0, h1 = 0, m = 0, mj = -1, t;
int8_t *q = &qp[target[i] * qlen];
// apply the band and the constraint (if provided)
t = (qw && qw[i] < w)? qw[i] : w; // this is the band width at $i
if (beg < i - t) beg = i - t;
if (end > i + t + 1) end = i + t + 1;
if (end > qlen) end = qlen;
printf("[%d]\t%d,%d", i, beg, end);
for (j = beg; LIKELY(j < end); ++j) {
// At the beginning of the loop: eh[j] = { H(i-1,j-1), E(i,j) }, f = F(i,j) and h1 = H(i,j-1)
// Similar to SSE2-SW, cells are computed in the following order:
@ -347,7 +351,7 @@ int ksw_extend(int qlen, const uint8_t *query, int tlen, const uint8_t *target,
eh_t *p = &eh[j];
int h = p->h, e = p->e; // get H(i-1,j-1) and E(i-1,j)
p->h = h1; // set H(i,j-1) for the next row
h += qp[j];
h += q[j];
h = h > e? h : e;
h = h > f? h : f;
h1 = h; // save H(i,j) to h1 for the next column
@ -360,19 +364,22 @@ int ksw_extend(int qlen, const uint8_t *query, int tlen, const uint8_t *target,
p->e = e; // save E(i+1,j) for the next row
f -= gape;
f = f > h? f : h; // computed F(i,j+1)
printf("\t%d:%d", j, h1);
}
putchar('\n');
eh[end].h = h1; eh[end].e = 0;
if (m == 0) break;
if (m > max) max = m, max_i = i, max_j = mj;
// update beg and end for the next round
for (j = mj; j > beg && eh[j].h; --j);
for (j = mj; j >= beg && eh[j].h; --j);
beg = j + 1;
for (j = mj + 2; j <= end && eh[j].h; ++j);
end = j;
beg = 0; end = qlen; // uncomment this line for debugging
}
free(eh); free(qp);
if (_qpos) *_qpos = max_i;
if (_tpos) *_tpos = max_j;
if (_qpos) *_qpos = max_i + 1;
if (_tpos) *_tpos = max_j + 1;
return max;
}

4
ksw.h
View File

@ -1,6 +1,8 @@
#ifndef __AC_KSW_H
#define __AC_KSW_H
#include <stdint.h>
struct _ksw_query_t;
typedef struct _ksw_query_t ksw_query_t;
@ -47,6 +49,8 @@ extern "C" {
/** Unified interface for ksw_sse2_8() and ksw_sse2_16() */
int ksw_sse2(ksw_query_t *q, int tlen, const uint8_t *target, ksw_aux_t *a);
int ksw_extend(int qlen, const uint8_t *query, int tlen, const uint8_t *target, int m, const int8_t *mat, int gapo, int gape, int w, int h0, const int *qw, int *_qpos, int *_tpos);
#ifdef __cplusplus
}
#endif