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FastBQSR/ext/htslib/bcf_sr_sort.c

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/*
Copyright (C) 2017-2021 Genome Research Ltd.
Author: Petr Danecek <pd3@sanger.ac.uk>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#define HTS_BUILDING_LIBRARY // Enables HTSLIB_EXPORT, see htslib/hts_defs.h
#include <config.h>
#include <assert.h>
#include <strings.h>
#include "bcf_sr_sort.h"
#include "htslib/khash_str2int.h"
#include "htslib/kbitset.h"
#define SR_REF 1
#define SR_SNP 2
#define SR_INDEL 4
#define SR_OTHER 8
#define SR_SCORE(srt,a,b) (srt)->score[((a)<<4)|(b)]
// Logical AND
static inline int kbs_logical_and(kbitset_t *bs1, kbitset_t *bs2)
{
// General case, bitsets of unequal size:
// int i, n = bs1->n < bs2->n ? bs1->n : bs2->n;
int i, n = bs1->n;
for (i=0; i<n; i++) if ( bs1->b[i] & bs2->b[i] ) return 1;
return 0;
}
// Bitwise OR, dst will be modified, src will be left unchanged
static inline void kbs_bitwise_or(kbitset_t *dst, kbitset_t *src)
{
int i;
for (i=0; i<dst->n; i++) dst->b[i] |= src->b[i];
}
static void bcf_sr_init_scores(sr_sort_t *srt)
{
int i,jbit,kbit;
// lower number = lower priority, zero means forbidden
if ( srt->pair & BCF_SR_PAIR_ANY ) srt->pair |= (BCF_SR_PAIR_SNPS | BCF_SR_PAIR_INDELS | BCF_SR_PAIR_SNP_REF | BCF_SR_PAIR_INDEL_REF);
if ( srt->pair & BCF_SR_PAIR_SNPS ) SR_SCORE(srt,SR_SNP,SR_SNP) = 3;
if ( srt->pair & BCF_SR_PAIR_INDELS ) SR_SCORE(srt,SR_INDEL,SR_INDEL) = 3;
if ( srt->pair & BCF_SR_PAIR_SNP_REF )
{
SR_SCORE(srt,SR_SNP,SR_REF) = 2;
SR_SCORE(srt,SR_REF,SR_SNP) = 2;
}
if ( srt->pair & BCF_SR_PAIR_INDEL_REF )
{
SR_SCORE(srt,SR_INDEL,SR_REF) = 2;
SR_SCORE(srt,SR_REF,SR_INDEL) = 2;
}
if ( srt->pair & BCF_SR_PAIR_ANY )
{
for (i=0; i<256; i++)
if ( !srt->score[i] ) srt->score[i] = 1;
}
// set all combinations
for (i=0; i<256; i++)
{
if ( srt->score[i] ) continue; // already set
int max = 0;
for (jbit=0; jbit<4; jbit++) // high bits
{
int j = 1<<jbit;
if ( !(i & (j<<4)) ) continue;
for (kbit=0; kbit<4; kbit++) // low bits
{
int k = 1<<kbit;
if ( !(i & k) ) continue;
if ( max < SR_SCORE(srt,j,k) ) max = SR_SCORE(srt,j,k);
}
}
srt->score[i] = max;
}
}
static int multi_is_exact(var_t *avar, var_t *bvar)
{
if ( avar->nalt != bvar->nalt ) return 0;
int alen = strlen(avar->str);
int blen = strlen(bvar->str);
if ( alen != blen ) return 0;
char *abeg = avar->str;
while ( *abeg )
{
char *aend = abeg;
while ( *aend && *aend!=',' ) aend++;
char *bbeg = bvar->str;
while ( *bbeg )
{
char *bend = bbeg;
while ( *bend && *bend!=',' ) bend++;
if ( bend - bbeg == aend - abeg && !strncasecmp(abeg,bbeg,bend-bbeg) ) break;
bbeg = *bend ? bend+1 : bend;
}
if ( !*bbeg ) return 0;
abeg = *aend ? aend+1 : aend;
}
return 1;
}
static int multi_is_subset(var_t *avar, var_t *bvar)
{
char *abeg = avar->str;
while ( *abeg )
{
char *aend = abeg;
while ( *aend && *aend!=',' ) aend++;
char *bbeg = bvar->str;
while ( *bbeg )
{
char *bend = bbeg;
while ( *bend && *bend!=',' ) bend++;
if ( bend - bbeg == aend - abeg && !strncasecmp(abeg,bbeg,bend-bbeg) ) return 1;
bbeg = *bend ? bend+1 : bend;
}
abeg = *aend ? aend+1 : aend;
}
return 0;
}
static uint32_t pairing_score(sr_sort_t *srt, int ivset, int jvset)
{
varset_t *iv = &srt->vset[ivset];
varset_t *jv = &srt->vset[jvset];
// Restrictive logic: the strictest type from a group is selected,
// so that, for example, snp+ref does not lead to the inclusion of an indel
int i,j;
uint32_t min = UINT32_MAX;
for (i=0; i<iv->nvar; i++)
{
var_t *ivar = &srt->var[iv->var[i]];
for (j=0; j<jv->nvar; j++)
{
var_t *jvar = &srt->var[jv->var[j]];
if ( srt->pair & BCF_SR_PAIR_EXACT )
{
if ( ivar->type != jvar->type ) continue;
if ( !strcmp(ivar->str,jvar->str) ) return UINT32_MAX; // exact match, best possibility
if ( multi_is_exact(ivar,jvar) ) return UINT32_MAX; // identical alleles
continue;
}
if ( ivar->type==jvar->type && !strcmp(ivar->str,jvar->str) ) return UINT32_MAX; // exact match, best possibility
if ( ivar->type & jvar->type && multi_is_subset(ivar,jvar) ) return UINT32_MAX; // one of the alleles is identical
uint32_t score = SR_SCORE(srt,ivar->type,jvar->type);
if ( !score ) return 0; // some of the varsets in the two groups are not compatible, will not pair
if ( min>score ) min = score;
}
}
if ( srt->pair & BCF_SR_PAIR_EXACT ) return 0;
assert( min!=UINT32_MAX );
uint32_t cnt = 0;
for (i=0; i<iv->nvar; i++) cnt += srt->var[iv->var[i]].nvcf;
for (j=0; j<jv->nvar; j++) cnt += srt->var[jv->var[j]].nvcf;
return (1u<<(28+min)) + cnt;
}
static void remove_vset(sr_sort_t *srt, int jvset)
{
if ( jvset+1 < srt->nvset )
{
varset_t tmp = srt->vset[jvset];
memmove(&srt->vset[jvset], &srt->vset[jvset+1], sizeof(varset_t)*(srt->nvset - jvset - 1));
srt->vset[srt->nvset-1] = tmp;
int *jmat = srt->pmat + jvset*srt->ngrp;
memmove(jmat, &jmat[srt->ngrp],sizeof(int)*(srt->nvset - jvset - 1)*srt->ngrp);
memmove(&srt->cnt[jvset], &srt->cnt[jvset+1], sizeof(int)*(srt->nvset - jvset - 1));
}
srt->nvset--;
}
static int merge_vsets(sr_sort_t *srt, int ivset, int jvset)
{
int i,j;
if ( ivset > jvset ) { i = ivset; ivset = jvset; jvset = i; }
varset_t *iv = &srt->vset[ivset];
varset_t *jv = &srt->vset[jvset];
kbs_bitwise_or(iv->mask,jv->mask);
i = iv->nvar;
iv->nvar += jv->nvar;
hts_expand(int, iv->nvar, iv->mvar, iv->var);
for (j=0; j<jv->nvar; j++,i++) iv->var[i] = jv->var[j];
int *imat = srt->pmat + ivset*srt->ngrp;
int *jmat = srt->pmat + jvset*srt->ngrp;
for (i=0; i<srt->ngrp; i++) imat[i] += jmat[i];
srt->cnt[ivset] += srt->cnt[jvset];
remove_vset(srt, jvset);
return ivset;
}
static int push_vset(sr_sort_t *srt, int ivset)
{
varset_t *iv = &srt->vset[ivset];
int i,j;
for (i=0; i<srt->sr->nreaders; i++)
{
vcf_buf_t *buf = &srt->vcf_buf[i];
buf->nrec++;
hts_expand(bcf1_t*,buf->nrec,buf->mrec,buf->rec);
buf->rec[buf->nrec-1] = NULL;
}
for (i=0; i<iv->nvar; i++)
{
var_t *var = &srt->var[ iv->var[i] ];
for (j=0; j<var->nvcf; j++)
{
int jvcf = var->vcf[j];
vcf_buf_t *buf = &srt->vcf_buf[jvcf];
buf->rec[buf->nrec-1] = var->rec[j];
}
}
remove_vset(srt, ivset);
return 0; // FIXME: check for errs in this function
}
static int cmpstringp(const void *p1, const void *p2)
{
return strcmp(* (char * const *) p1, * (char * const *) p2);
}
#define DEBUG_VSETS 0
#if DEBUG_VSETS
void debug_vsets(sr_sort_t *srt)
{
int i,j,k;
for (i=0; i<srt->nvset; i++)
{
fprintf(stderr,"dbg_vset %d:", i);
for (j=0; j<srt->vset[i].mask->n; j++) fprintf(stderr,"%c%lu",j==0?' ':':',srt->vset[i].mask->b[j]);
fprintf(stderr,"\t");
for (j=0; j<srt->vset[i].nvar; j++)
{
var_t *var = &srt->var[srt->vset[i].var[j]];
fprintf(stderr,"\t%s",var->str);
for (k=0; k<var->nvcf; k++)
fprintf(stderr,"%c%d", k==0?':':',',var->vcf[k]);
}
fprintf(stderr,"\n");
}
}
#endif
#define DEBUG_VBUF 0
#if DEBUG_VBUF
void debug_vbuf(sr_sort_t *srt)
{
int i, j;
for (j=0; j<srt->vcf_buf[0].nrec; j++)
{
fprintf(stderr,"dbg_vbuf %d:\t", j);
for (i=0; i<srt->sr->nreaders; i++)
{
vcf_buf_t *buf = &srt->vcf_buf[i];
fprintf(stderr,"\t%"PRIhts_pos, buf->rec[j] ? buf->rec[j]->pos+1 : 0);
}
fprintf(stderr,"\n");
}
}
#endif
static char *grp_create_key(sr_sort_t *srt)
{
if ( !srt->str.l ) return strdup("");
int i;
hts_expand(char*,srt->noff,srt->mcharp,srt->charp);
for (i=0; i<srt->noff; i++)
{
srt->charp[i] = srt->str.s + srt->off[i];
if ( i>0 ) srt->charp[i][-1] = 0;
}
qsort(srt->charp, srt->noff, sizeof(*srt->charp), cmpstringp);
char *ret = (char*) malloc(srt->str.l + 1), *ptr = ret;
for (i=0; i<srt->noff; i++)
{
int len = strlen(srt->charp[i]);
memcpy(ptr, srt->charp[i], len);
ptr += len + 1;
ptr[-1] = i+1==srt->noff ? 0 : ';';
}
return ret;
}
int bcf_sr_sort_set_active(sr_sort_t *srt, int idx)
{
hts_expand(int,idx+1,srt->mactive,srt->active);
srt->nactive = 1;
srt->active[srt->nactive - 1] = idx;
return 0; // FIXME: check for errs in this function
}
int bcf_sr_sort_add_active(sr_sort_t *srt, int idx)
{
hts_expand(int,idx+1,srt->mactive,srt->active);
srt->nactive++;
srt->active[srt->nactive - 1] = idx;
return 0; // FIXME: check for errs in this function
}
static int bcf_sr_sort_set(bcf_srs_t *readers, sr_sort_t *srt, const char *chr, hts_pos_t min_pos)
{
if ( !srt->grp_str2int )
{
// first time here, initialize
if ( !srt->pair )
{
if ( readers->collapse==COLLAPSE_NONE ) readers->collapse = BCF_SR_PAIR_EXACT;
bcf_sr_set_opt(readers, BCF_SR_PAIR_LOGIC, readers->collapse);
}
bcf_sr_init_scores(srt);
srt->grp_str2int = khash_str2int_init();
srt->var_str2int = khash_str2int_init();
}
int k;
khash_t(str2int) *hash;
hash = srt->grp_str2int;
for (k=0; k < kh_end(hash); k++)
if ( kh_exist(hash,k) ) free((char*)kh_key(hash,k));
hash = srt->var_str2int;
for (k=0; k < kh_end(hash); k++)
if ( kh_exist(hash,k) ) free((char*)kh_key(hash,k));
kh_clear(str2int, srt->grp_str2int);
kh_clear(str2int, srt->var_str2int);
srt->ngrp = srt->nvar = srt->nvset = 0;
grp_t grp;
memset(&grp,0,sizeof(grp_t));
// group VCFs into groups, each with a unique combination of variants in the duplicate lines
int ireader,ivar,irec,igrp,ivset,iact;
for (ireader=0; ireader<readers->nreaders; ireader++) srt->vcf_buf[ireader].nrec = 0;
for (iact=0; iact<srt->nactive; iact++)
{
ireader = srt->active[iact];
bcf_sr_t *reader = &readers->readers[ireader];
int rid = bcf_hdr_name2id(reader->header, chr);
grp.nvar = 0;
hts_expand(int,reader->nbuffer,srt->moff,srt->off);
srt->noff = 0;
srt->str.l = 0;
for (irec=1; irec<=reader->nbuffer; irec++)
{
bcf1_t *line = reader->buffer[irec];
if ( line->rid!=rid || line->pos!=min_pos ) break;
if ( srt->str.l ) kputc(';',&srt->str);
srt->off[srt->noff++] = srt->str.l;
size_t beg = srt->str.l;
int end_pos = -1;
for (ivar=1; ivar<line->n_allele; ivar++)
{
if ( ivar>1 ) kputc(',',&srt->str);
kputs(line->d.allele[0],&srt->str);
kputc('>',&srt->str);
kputs(line->d.allele[ivar],&srt->str);
// If symbolic allele, check also the END tag in case there are multiple events,
// such as <DEL>s, starting at the same positions
if ( line->d.allele[ivar][0]=='<' )
{
if ( end_pos==-1 )
{
bcf_info_t *end_info = bcf_get_info(reader->header,line,"END");
if ( end_info )
end_pos = (int)end_info->v1.i; // this is only to create a unique id, we don't mind a potential int64 overflow
else
end_pos = 0;
}
if ( end_pos )
{
kputc('/',&srt->str);
kputw(end_pos, &srt->str);
}
}
}
if ( line->n_allele==1 )
{
kputs(line->d.allele[0],&srt->str);
kputsn(">.",2,&srt->str);
}
// Create new variant or attach to existing one. But careful, there can be duplicate
// records with the same POS,REF,ALT (e.g. in dbSNP-b142)
char *var_str = beg + srt->str.s;
int ret, var_idx = 0, var_end = srt->str.l;
while ( 1 )
{
ret = khash_str2int_get(srt->var_str2int, var_str, &ivar);
if ( ret==-1 ) break;
var_t *var = &srt->var[ivar];
if ( var->vcf[var->nvcf-1] != ireader ) break;
srt->str.l = var_end;
kputw(var_idx, &srt->str);
var_str = beg + srt->str.s;
var_idx++;
}
if ( ret==-1 )
{
ivar = srt->nvar++;
hts_expand0(var_t,srt->nvar,srt->mvar,srt->var);
srt->var[ivar].nvcf = 0;
khash_str2int_set(srt->var_str2int, strdup(var_str), ivar);
free(srt->var[ivar].str); // possible left-over from the previous position
}
var_t *var = &srt->var[ivar];
var->nalt = line->n_allele - 1;
var->type = bcf_get_variant_types(line);
srt->str.s[var_end] = 0;
if ( ret==-1 )
var->str = strdup(var_str);
int mvcf = var->mvcf;
var->nvcf++;
hts_expand0(int*, var->nvcf, var->mvcf, var->vcf);
if ( mvcf != var->mvcf ) var->rec = (bcf1_t **) realloc(var->rec,sizeof(bcf1_t*)*var->mvcf);
var->vcf[var->nvcf-1] = ireader;
var->rec[var->nvcf-1] = line;
grp.nvar++;
hts_expand(var_t,grp.nvar,grp.mvar,grp.var);
grp.var[grp.nvar-1] = ivar;
}
char *grp_key = grp_create_key(srt);
int ret = khash_str2int_get(srt->grp_str2int, grp_key, &igrp);
if ( ret==-1 )
{
igrp = srt->ngrp++;
hts_expand0(grp_t, srt->ngrp, srt->mgrp, srt->grp);
free(srt->grp[igrp].var);
srt->grp[igrp] = grp;
srt->grp[igrp].key = grp_key;
khash_str2int_set(srt->grp_str2int, grp_key, igrp);
memset(&grp,0,sizeof(grp_t));
}
else
free(grp_key);
srt->grp[igrp].nvcf++;
}
free(grp.var);
// initialize bitmask - which groups is the variant present in
for (ivar=0; ivar<srt->nvar; ivar++)
{
if ( kbs_resize(&srt->var[ivar].mask, srt->ngrp) < 0 )
{
fprintf(stderr, "[%s:%d %s] kbs_resize failed\n", __FILE__,__LINE__,__func__);
exit(1);
}
kbs_clear(srt->var[ivar].mask);
}
for (igrp=0; igrp<srt->ngrp; igrp++)
{
for (ivar=0; ivar<srt->grp[igrp].nvar; ivar++)
{
int i = srt->grp[igrp].var[ivar];
kbs_insert(srt->var[i].mask, igrp);
}
}
// create the initial list of variant sets
for (ivar=0; ivar<srt->nvar; ivar++)
{
ivset = srt->nvset++;
hts_expand0(varset_t, srt->nvset, srt->mvset, srt->vset);
varset_t *vset = &srt->vset[ivset];
vset->nvar = 1;
hts_expand0(var_t, vset->nvar, vset->mvar, vset->var);
vset->var[vset->nvar-1] = ivar;
var_t *var = &srt->var[ivar];
vset->cnt = var->nvcf;
if ( kbs_resize(&vset->mask, srt->ngrp) < 0 )
{
fprintf(stderr, "[%s:%d %s] kbs_resize failed\n", __FILE__,__LINE__,__func__);
exit(1);
}
kbs_clear(vset->mask);
kbs_bitwise_or(vset->mask, var->mask);
int type = 0;
if ( var->type==VCF_REF ) type |= SR_REF;
else
{
if ( var->type & VCF_SNP ) type |= SR_SNP;
if ( var->type & VCF_MNP ) type |= SR_SNP;
if ( var->type & VCF_INDEL ) type |= SR_INDEL;
if ( var->type & VCF_OTHER ) type |= SR_OTHER;
}
var->type = type;
}
#if DEBUG_VSETS
debug_vsets(srt);
#endif
// initialize the pairing matrix
hts_expand(int, srt->ngrp*srt->nvset, srt->mpmat, srt->pmat);
hts_expand(int, srt->nvset, srt->mcnt, srt->cnt);
memset(srt->pmat, 0, sizeof(*srt->pmat)*srt->ngrp*srt->nvset);
for (ivset=0; ivset<srt->nvset; ivset++)
{
varset_t *vset = &srt->vset[ivset];
for (igrp=0; igrp<srt->ngrp; igrp++) srt->pmat[ivset*srt->ngrp+igrp] = 0;
srt->cnt[ivset] = vset->cnt;
}
// pair the lines
while ( srt->nvset )
{
#if DEBUG_VSETS
fprintf(stderr,"\n");
debug_vsets(srt);
#endif
int imax = 0;
for (ivset=1; ivset<srt->nvset; ivset++)
if ( srt->cnt[imax] < srt->cnt[ivset] ) imax = ivset;
int ipair = -1;
uint32_t max_score = 0;
for (ivset=0; ivset<srt->nvset; ivset++)
{
if ( kbs_logical_and(srt->vset[imax].mask,srt->vset[ivset].mask) ) continue; // cannot be merged
uint32_t score = pairing_score(srt, imax, ivset);
// fprintf(stderr,"score: %d %d, logic=%d \t..\t %u\n", imax,ivset,srt->pair,score);
if ( max_score < score ) { max_score = score; ipair = ivset; }
}
// merge rows creating a new variant set this way
if ( ipair!=-1 && ipair!=imax )
{
imax = merge_vsets(srt, imax, ipair);
continue;
}
push_vset(srt, imax);
}
srt->chr = chr;
srt->pos = min_pos;
return 0; // FIXME: check for errs in this function
}
int bcf_sr_sort_next(bcf_srs_t *readers, sr_sort_t *srt, const char *chr, hts_pos_t min_pos)
{
int i,j;
assert( srt->nactive>0 );
if ( srt->nsr != readers->nreaders )
{
srt->sr = readers;
if ( srt->nsr < readers->nreaders )
{
srt->vcf_buf = (vcf_buf_t*) realloc(srt->vcf_buf,readers->nreaders*sizeof(vcf_buf_t));
memset(srt->vcf_buf + srt->nsr, 0, sizeof(vcf_buf_t)*(readers->nreaders - srt->nsr));
if ( srt->msr < srt->nsr ) srt->msr = srt->nsr;
}
srt->nsr = readers->nreaders;
srt->chr = NULL;
}
if ( srt->nactive == 1 )
{
if ( readers->nreaders>1 )
memset(readers->has_line, 0, readers->nreaders*sizeof(*readers->has_line));
bcf_sr_t *reader = &readers->readers[srt->active[0]];
assert( reader->buffer[1]->pos==min_pos );
bcf1_t *tmp = reader->buffer[0];
for (j=1; j<=reader->nbuffer; j++) reader->buffer[j-1] = reader->buffer[j];
reader->buffer[ reader->nbuffer ] = tmp;
reader->nbuffer--;
readers->has_line[srt->active[0]] = 1;
return 1;
}
if ( !srt->chr || srt->pos!=min_pos || strcmp(srt->chr,chr) ) bcf_sr_sort_set(readers, srt, chr, min_pos);
if ( !srt->vcf_buf[0].nrec ) return 0;
#if DEBUG_VBUF
debug_vbuf(srt);
#endif
int nret = 0;
for (i=0; i<srt->sr->nreaders; i++)
{
vcf_buf_t *buf = &srt->vcf_buf[i];
if ( buf->rec[0] )
{
bcf_sr_t *reader = &srt->sr->readers[i];
for (j=1; j<=reader->nbuffer; j++)
if ( reader->buffer[j] == buf->rec[0] ) break;
assert( j<=reader->nbuffer );
bcf1_t *tmp = reader->buffer[0];
reader->buffer[0] = reader->buffer[j++];
for (; j<=reader->nbuffer; j++) reader->buffer[j-1] = reader->buffer[j];
reader->buffer[ reader->nbuffer ] = tmp;
reader->nbuffer--;
nret++;
srt->sr->has_line[i] = 1;
}
else
srt->sr->has_line[i] = 0;
buf->nrec--;
if ( buf->nrec > 0 )
memmove(buf->rec, &buf->rec[1], buf->nrec*sizeof(bcf1_t*));
}
return nret;
}
void bcf_sr_sort_remove_reader(bcf_srs_t *readers, sr_sort_t *srt, int i)
{
//vcf_buf is allocated only in bcf_sr_sort_next
//So, a call to bcf_sr_add_reader() followed immediately by bcf_sr_remove_reader()
//would cause the program to crash in this segment
if (srt->vcf_buf)
{
free(srt->vcf_buf[i].rec);
if ( i+1 < srt->nsr )
memmove(&srt->vcf_buf[i], &srt->vcf_buf[i+1], (srt->nsr - i - 1)*sizeof(vcf_buf_t));
memset(srt->vcf_buf + srt->nsr - 1, 0, sizeof(vcf_buf_t));
}
}
sr_sort_t *bcf_sr_sort_init(sr_sort_t *srt)
{
if ( !srt ) return calloc(1,sizeof(sr_sort_t));
memset(srt,0,sizeof(sr_sort_t));
return srt;
}
void bcf_sr_sort_reset(sr_sort_t *srt)
{
srt->chr = NULL;
}
void bcf_sr_sort_destroy(sr_sort_t *srt)
{
free(srt->active);
if ( srt->var_str2int ) khash_str2int_destroy_free(srt->var_str2int);
if ( srt->grp_str2int ) khash_str2int_destroy_free(srt->grp_str2int);
int i;
for (i=0; i<srt->nsr; i++) free(srt->vcf_buf[i].rec);
free(srt->vcf_buf);
for (i=0; i<srt->mvar; i++)
{
free(srt->var[i].str);
free(srt->var[i].vcf);
free(srt->var[i].rec);
kbs_destroy(srt->var[i].mask);
}
free(srt->var);
for (i=0; i<srt->mgrp; i++)
free(srt->grp[i].var);
free(srt->grp);
for (i=0; i<srt->mvset; i++)
{
kbs_destroy(srt->vset[i].mask);
free(srt->vset[i].var);
}
free(srt->vset);
free(srt->str.s);
free(srt->off);
free(srt->charp);
free(srt->cnt);
free(srt->pmat);
memset(srt,0,sizeof(*srt));
}
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