#include "kstring.h"
#include "bcf.h"
-void bcf_hdr_clear(bcf_hdr_t *b)
-{
- free(b->name); free(b->sname); free(b->txt); free(b->ns); free(b->sns);
- memset(b, 0, sizeof(bcf_hdr_t));
-}
-
bcf_t *bcf_open(const char *fn, const char *mode)
{
bcf_t *b;
return 0;
}
-#define char2int(s) (((int)s[0])<<8|s[1])
-
-int bcf_sync(int n_smpl, bcf1_t *b)
+int bcf_sync(bcf1_t *b)
{
- char *p, *tmp[5], *s;
- int i, n;
+ char *p, *tmp[5];
+ int i, n, n_smpl = b->n_smpl;
+ ks_tokaux_t aux;
// set ref, alt, flt, info, fmt
b->ref = b->alt = b->flt = b->info = b->fmt = 0;
for (p = b->str, n = 0; p < b->str + b->l_str; ++p)
if (*p == 0 && p+1 != b->str + b->l_str) tmp[n++] = p + 1;
- if (n != 5) return -1;
+ if (n != 5) {
+ fprintf(stderr, "[%s] incorrect number of fields (%d != 5). Corrupted file?\n", __func__, n);
+ return -1;
+ }
b->ref = tmp[0]; b->alt = tmp[1]; b->flt = tmp[2]; b->info = tmp[3]; b->fmt = tmp[4];
// set n_alleles
- for (p = b->alt, n = 1; *p; ++p)
- if (*p == ',') ++n;
- b->n_alleles = n + 1;
+ if (*b->alt == 0) b->n_alleles = 1;
+ else {
+ for (p = b->alt, n = 1; *p; ++p)
+ if (*p == ',') ++n;
+ b->n_alleles = n + 1;
+ }
// set n_gi and gi[i].fmt
for (p = b->fmt, n = 1; *p; ++p)
if (*p == ':') ++n;
memset(b->gi + old_m, 0, (b->m_gi - old_m) * sizeof(bcf_ginfo_t));
}
b->n_gi = n;
- for (p = s = b->fmt, n = 0; *p; ++p) {
- if (*p == ':' || *(p+1) == 0) {
- char *q = *p == ':'? p : p + 1;
- if ((q - s) != 2) return -2;
- b->gi[n].fmt = char2int(s);
- s = q;
- }
- }
+ for (p = kstrtok(b->fmt, ":", &aux), n = 0; p; p = kstrtok(0, 0, &aux))
+ b->gi[n++].fmt = bcf_str2int(p, aux.p - p);
// set gi[i].len
for (i = 0; i < b->n_gi; ++i) {
- if (b->gi[i].fmt == char2int("PL")) {
+ if (b->gi[i].fmt == bcf_str2int("PL", 2)) {
b->gi[i].len = b->n_alleles * (b->n_alleles + 1) / 2;
- } else if (b->gi[i].fmt == char2int("DP") || b->gi[i].fmt == char2int("HQ")) {
+ } else if (b->gi[i].fmt == bcf_str2int("DP", 2) || b->gi[i].fmt == bcf_str2int("HQ", 2)) {
b->gi[i].len = 2;
- } else if (b->gi[i].fmt == char2int("GQ") || b->gi[i].fmt == char2int("GT")) {
+ } else if (b->gi[i].fmt == bcf_str2int("GQ", 2) || b->gi[i].fmt == bcf_str2int("GT", 2)
+ || b->gi[i].fmt == bcf_str2int("SP", 2))
+ {
b->gi[i].len = 1;
- } else if (b->gi[i].fmt == char2int("GL")) {
- b->gi[i].len = 4;
+ } else if (b->gi[i].fmt == bcf_str2int("GL", 2)) {
+ b->gi[i].len = b->n_alleles * (b->n_alleles + 1) / 2 * 4;
}
b->gi[i].data = realloc(b->gi[i].data, n_smpl * b->gi[i].len);
}
int bcf_write(bcf_t *bp, const bcf_hdr_t *h, const bcf1_t *b)
{
- uint32_t x;
int i, l = 0;
if (b == 0) return -1;
bgzf_write(bp->fp, &b->tid, 4);
bgzf_write(bp->fp, &b->pos, 4);
- x = b->qual<<24 | b->l_str;
- bgzf_write(bp->fp, &x, 4);
+ bgzf_write(bp->fp, &b->qual, 4);
+ bgzf_write(bp->fp, &b->l_str, 4);
bgzf_write(bp->fp, b->str, b->l_str);
l = 12 + b->l_str;
for (i = 0; i < b->n_gi; ++i) {
int bcf_read(bcf_t *bp, const bcf_hdr_t *h, bcf1_t *b)
{
int i, l = 0;
- uint32_t x;
if (b == 0) return -1;
if (bgzf_read(bp->fp, &b->tid, 4) == 0) return -1;
+ b->n_smpl = h->n_smpl;
bgzf_read(bp->fp, &b->pos, 4);
- bgzf_read(bp->fp, &x, 4);
- b->qual = x >> 24; b->l_str = x << 8 >> 8;
+ bgzf_read(bp->fp, &b->qual, 4);
+ bgzf_read(bp->fp, &b->l_str, 4);
if (b->l_str > b->m_str) {
b->m_str = b->l_str;
kroundup32(b->m_str);
}
bgzf_read(bp->fp, b->str, b->l_str);
l = 12 + b->l_str;
- bcf_sync(h->n_smpl, b);
+ bcf_sync(b);
for (i = 0; i < b->n_gi; ++i) {
bgzf_read(bp->fp, b->gi[i].data, b->gi[i].len * h->n_smpl);
l += b->gi[i].len * h->n_smpl;
int i;
if (b == 0) return -1;
free(b->str);
- for (i = 0; i < b->n_gi; ++i)
+ for (i = 0; i < b->m_gi; ++i)
free(b->gi[i].data);
free(b->gi);
free(b);
else kputs(p, s);
}
-char *bcf_fmt(const bcf_hdr_t *h, bcf1_t *b)
+void bcf_fmt_core(const bcf_hdr_t *h, bcf1_t *b, kstring_t *s)
{
- kstring_t s;
int i, j, x;
- memset(&s, 0, sizeof(kstring_t));
- kputs(h->ns[b->tid], &s); kputc('\t', &s);
- kputw(b->pos + 1, &s); kputc('\t', &s);
- fmt_str(b->str, &s); kputc('\t', &s);
- fmt_str(b->ref, &s); kputc('\t', &s);
- fmt_str(b->alt, &s); kputc('\t', &s);
- kputw(b->qual, &s); kputc('\t', &s);
- fmt_str(b->flt, &s); kputc('\t', &s);
- fmt_str(b->info, &s);
+ s->l = 0;
+ if (h->n_ref) kputs(h->ns[b->tid], s);
+ else kputw(b->tid, s);
+ kputc('\t', s);
+ kputw(b->pos + 1, s); kputc('\t', s);
+ fmt_str(b->str, s); kputc('\t', s);
+ fmt_str(b->ref, s); kputc('\t', s);
+ fmt_str(b->alt, s); kputc('\t', s);
+ ksprintf(s, "%.3g", b->qual); kputc('\t', s);
+ fmt_str(b->flt, s); kputc('\t', s);
+ fmt_str(b->info, s);
if (b->fmt[0]) {
- kputc('\t', &s);
- fmt_str(b->fmt, &s);
+ kputc('\t', s);
+ fmt_str(b->fmt, s);
}
x = b->n_alleles * (b->n_alleles + 1) / 2;
+ if (b->n_gi == 0) return;
for (j = 0; j < h->n_smpl; ++j) {
- kputc('\t', &s);
+ kputc('\t', s);
for (i = 0; i < b->n_gi; ++i) {
- if (i) kputc(':', &s);
- if (b->gi[i].fmt == char2int("PL")) {
+ if (i) kputc(':', s);
+ if (b->gi[i].fmt == bcf_str2int("PL", 2)) {
uint8_t *d = (uint8_t*)b->gi[i].data + j * x;
int k;
for (k = 0; k < x; ++k) {
- if (k > 0) kputc(',', &s);
- kputw(d[k], &s);
+ if (k > 0) kputc(',', s);
+ kputw(d[k], s);
+ }
+ } else if (b->gi[i].fmt == bcf_str2int("DP", 2)) {
+ kputw(((uint16_t*)b->gi[i].data)[j], s);
+ } else if (b->gi[i].fmt == bcf_str2int("GQ", 2) || b->gi[i].fmt == bcf_str2int("SP", 2)) {
+ kputw(((uint8_t*)b->gi[i].data)[j], s);
+ } else if (b->gi[i].fmt == bcf_str2int("GT", 2)) {
+ int y = ((uint8_t*)b->gi[i].data)[j];
+ if (y>>7&1) {
+ kputsn("./.", 3, s);
+ } else {
+ kputc('0' + (y>>3&7), s);
+ kputc("/|"[y>>6&1], s);
+ kputc('0' + (y&7), s);
+ }
+ } else if (b->gi[i].fmt == bcf_str2int("GL", 2)) {
+ float *d = (float*)b->gi[i].data + j * x;
+ int k;
+ //printf("- %lx\n", d);
+ for (k = 0; k < x; ++k) {
+ if (k > 0) kputc(',', s);
+ ksprintf(s, "%.2f", d[k]);
}
- } else if (b->gi[i].fmt == char2int("DP")) {
- kputw(((uint16_t*)b->gi[i].data)[j], &s);
- } else if (b->gi[i].fmt == char2int("GQ")) {
- kputw(((uint8_t*)b->gi[i].data)[j], &s);
}
}
}
+}
+
+char *bcf_fmt(const bcf_hdr_t *h, bcf1_t *b)
+{
+ kstring_t s;
+ s.l = s.m = 0; s.s = 0;
+ bcf_fmt_core(h, b, &s);
return s.s;
}
+
+int bcf_append_info(bcf1_t *b, const char *info, int l)
+{
+ int shift = b->fmt - b->str;
+ int l_fmt = b->l_str - shift;
+ char *ori = b->str;
+ if (b->l_str + l > b->m_str) { // enlarge if necessary
+ b->m_str = b->l_str + l;
+ kroundup32(b->m_str);
+ b->str = realloc(b->str, b->m_str);
+ }
+ memmove(b->str + shift + l, b->str + shift, l_fmt); // move the FORMAT field
+ memcpy(b->str + shift - 1, info, l); // append to the INFO field
+ b->str[shift + l - 1] = '\0';
+ b->fmt = b->str + shift + l;
+ b->l_str += l;
+ if (ori != b->str) bcf_sync(b); // synchronize when realloc changes the pointer
+ return 0;
+}
+
+int bcf_cpy(bcf1_t *r, const bcf1_t *b)
+{
+ char *t1 = r->str;
+ bcf_ginfo_t *t2 = r->gi;
+ int i, t3 = r->m_str, t4 = r->m_gi;
+ *r = *b;
+ r->str = t1; r->gi = t2; r->m_str = t3; r->m_gi = t4;
+ if (r->m_str < b->m_str) {
+ r->m_str = b->m_str;
+ r->str = realloc(r->str, r->m_str);
+ }
+ memcpy(r->str, b->str, r->m_str);
+ bcf_sync(r); // calling bcf_sync() is simple but inefficient
+ for (i = 0; i < r->n_gi; ++i)
+ memcpy(r->gi[i].data, b->gi[i].data, r->n_smpl * r->gi[i].len);
+ return 0;
+}
+
+int bcf_is_indel(const bcf1_t *b)
+{
+ char *p;
+ if (strlen(b->ref) > 1) return 1;
+ for (p = b->alt; *p; ++p)
+ if (*p != ',' && p[1] != ',' && p[1] != '\0')
+ return 1;
+ return 0;
+}
projects / samtools.git / blobdiff