6 #include "bam_maqcns.h"
9 KHASH_SET_INIT_INT64(64)
11 #define BAM_PLF_SIMPLE 0x01
12 #define BAM_PLF_CNS 0x02
13 #define BAM_PLF_INDEL_ONLY 0x04
14 #define BAM_PLF_GLF 0x08
19 bam_maqindel_opt_t *ido;
23 int tid, len, last_pos;
26 glfFile fp; // for glf output only
29 char **bam_load_pos(const char *fn, int *_n);
30 void bam_init_header_hash(bam_header_t *header);
31 int32_t bam_get_tid(const bam_header_t *header, const char *seq_name);
33 static khash_t(64) *load_pos(const char *fn, bam_header_t *h)
39 bam_init_header_hash(h);
40 list = bam_load_pos(fn, &n);
42 for (i = 0; i < n; ++i) {
43 x = (uint64_t)bam_get_tid(h, list[i]) << 32;
46 x |= *((uint32_t*)s) - 1;
47 kh_put(64, hash, x, &tmp);
54 // an analogy to pileup_func() below
55 static int glt3_func(uint32_t tid, uint32_t pos, int n, const bam_pileup1_t *pu, void *data)
57 pu_data_t *d = (pu_data_t*)data;
58 bam_maqindel_ret_t *r = 0;
63 fprintf(stderr, "[glt3_func] reference sequence is required for generating GLT. Abort!\n");
66 if (d->hash && kh_get(64, d->hash, (uint64_t)tid<<32|pos) == kh_end(d->hash)) return 0;
68 if (d->fai && (int)tid != d->tid) {
69 if (d->ref) { // then write the end mark
70 g3->rtype = GLF3_RTYPE_END;
71 glf3_write1(d->fp, g3);
73 glf3_ref_write(d->fp, d->h->target_name[tid], d->h->target_len[tid]); // write reference
75 d->ref = fai_fetch(d->fai, d->h->target_name[tid], &d->len);
79 rb = (d->ref && (int)pos < d->len)? d->ref[pos] : 'N';
80 g = bam_maqcns_glfgen(n, pu, bam_nt16_table[rb], d->c);
81 memcpy(g3, g, sizeof(glf1_t));
82 g3->rtype = GLF3_RTYPE_SUB;
83 g3->offset = pos - d->last_pos;
85 glf3_write1(d->fp, g3);
86 r = bam_maqindel(n, pos, d->ido, pu, d->ref);
87 if (r) { // then write indel line
90 if (min > r->gl[0]) min = r->gl[0];
91 if (min > r->gl[1]) min = r->gl[1];
93 g3->rtype = GLF3_RTYPE_INDEL;
94 memset(g3->lk, 0, 10);
95 g3->lk[0] = r->gl[0] - min < 255? r->gl[0] - min : 255;
96 g3->lk[1] = r->gl[1] - min < 255? r->gl[1] - min : 255;
97 g3->lk[2] = het - min < 255? het - min : 255;
99 g3->indel_len[0] = r->indel1;
100 g3->indel_len[1] = r->indel2;
101 g3->min_lk = min < 255? min : 255;
102 g3->max_len = (abs(r->indel1) > abs(r->indel2)? abs(r->indel1) : abs(r->indel2)) + 1;
103 g3->indel_seq[0] = strdup(r->s[0]+1);
104 g3->indel_seq[1] = strdup(r->s[1]+1);
105 glf3_write1(d->fp, g3);
106 bam_maqindel_ret_destroy(r);
113 static int pileup_func(uint32_t tid, uint32_t pos, int n, const bam_pileup1_t *pu, void *data)
115 pu_data_t *d = (pu_data_t*)data;
116 bam_maqindel_ret_t *r = 0;
117 int i, j, rb, max_mapq = 0;
119 if (d->hash && kh_get(64, d->hash, (uint64_t)tid<<32|pos) == kh_end(d->hash)) return 0;
120 if (d->format & BAM_PLF_GLF) return glt3_func(tid, pos, n, pu, data);
121 if (d->fai && (int)tid != d->tid) {
123 d->ref = fai_fetch(d->fai, d->h->target_name[tid], &d->len);
126 rb = (d->ref && (int)pos < d->len)? d->ref[pos] : 'N';
127 if (d->format & BAM_PLF_INDEL_ONLY) {
128 for (i = 0; i < n; ++i)
129 if (pu[i].indel != 0) break;
130 if (i == n) return 0;
132 printf("%s\t%d\t%c\t", d->h->target_name[tid], pos + 1, rb);
133 if (d->format & BAM_PLF_CNS) { // consensus
134 int ref_q, rb4 = bam_nt16_table[rb];
135 x = bam_maqcns_call(n, pu, d->c);
137 if (rb4 != 15 && x>>28 != 15 && x>>28 != rb4) { // a SNP
138 ref_q = ((x>>24&0xf) == rb4)? x>>8&0xff : (x>>8&0xff) + (x&0xff);
139 if (ref_q > 255) ref_q = 255;
141 printf("%c\t%d\t%d\t%d\t", bam_nt16_rev_table[x>>28], x>>8&0xff, ref_q, x>>16&0xff);
143 if (d->format & (BAM_PLF_CNS|BAM_PLF_INDEL_ONLY)) {
144 if (d->ref) // indel calling
145 r = bam_maqindel(n, pos, d->ido, pu, d->ref);
149 for (i = 0; i < n; ++i) {
150 const bam_pileup1_t *p = pu + i;
151 if (max_mapq < p->b->core.qual) max_mapq = p->b->core.qual;
152 if (p->is_head) printf("^%c", p->b->core.qual > 93? 126 : p->b->core.qual + 33);
154 int c = bam_nt16_rev_table[bam1_seqi(bam1_seq(p->b), p->qpos)];
155 if (toupper(c) == toupper(rb)) c = bam1_strand(p->b)? ',' : '.';
156 else c = bam1_strand(p->b)? tolower(c) : toupper(c);
159 printf("+%d", p->indel);
160 for (j = 1; j <= p->indel; ++j) {
161 c = bam_nt16_rev_table[bam1_seqi(bam1_seq(p->b), p->qpos + j)];
162 putchar(bam1_strand(p->b)? tolower(c) : toupper(c));
164 } else if (p->indel < 0) {
165 printf("%d", p->indel);
166 for (j = 1; j <= -p->indel; ++j) {
167 c = (d->ref && (int)pos+j < d->len)? d->ref[pos+j] : 'N';
168 putchar(bam1_strand(p->b)? tolower(c) : toupper(c));
172 if (p->is_tail) putchar('$');
175 for (i = 0; i < n; ++i) {
176 const bam_pileup1_t *p = pu + i;
177 int c = bam1_qual(p->b)[p->qpos] + 33;
178 if (c > 126) c = 126;
181 if (d->format & BAM_PLF_SIMPLE) {
183 for (i = 0; i < n; ++i) {
184 int c = pu[i].b->core.qual + 33;
185 if (c > 126) c = 126;
190 if (r) { // then print indel line
191 printf("%s\t%d\t*\t", d->h->target_name[tid], pos + 1);
192 if (r->gt < 2) printf("%s/%s\t", r->s[r->gt], r->s[r->gt]);
193 else printf("%s/%s\t", r->s[0], r->s[1]);
194 printf("%d\t%d\t", r->q_cns, r->q_ref);
195 printf("%d\t%d\t", max_mapq, n);
196 printf("%s\t%s\t", r->s[0], r->s[1]);
197 //printf("%d\t%d\t", r->gl[0], r->gl[1]);
198 printf("%d\t%d\t%d\t%d\n", r->cnt1, r->cnt2, r->cnt_ambi, r->cnt_anti);
199 bam_maqindel_ret_destroy(r);
204 int bam_pileup(int argc, char *argv[])
207 char *fn_list = 0, *fn_fa = 0, *fn_pos = 0;
208 pu_data_t *d = (pu_data_t*)calloc(1, sizeof(pu_data_t));
209 d->tid = -1; d->mask = BAM_DEF_MASK;
210 d->c = bam_maqcns_init();
211 d->ido = bam_maqindel_opt_init();
212 while ((c = getopt(argc, argv, "st:f:cT:N:r:l:im:gI:G:")) >= 0) {
214 case 's': d->format |= BAM_PLF_SIMPLE; break;
215 case 't': fn_list = strdup(optarg); break;
216 case 'l': fn_pos = strdup(optarg); break;
217 case 'f': fn_fa = strdup(optarg); break;
218 case 'T': d->c->theta = atof(optarg); break;
219 case 'N': d->c->n_hap = atoi(optarg); break;
220 case 'r': d->c->het_rate = atoi(optarg); break;
221 case 'c': d->format |= BAM_PLF_CNS; break;
222 case 'i': d->format |= BAM_PLF_INDEL_ONLY; break;
223 case 'm': d->mask = atoi(optarg); break;
224 case 'g': d->format |= BAM_PLF_GLF; break;
225 case 'I': d->ido->q_indel = atoi(optarg); break;
226 case 'G': d->ido->r_indel = atof(optarg); break;
227 default: fprintf(stderr, "Unrecognizd option '-%c'.\n", c); return 1;
230 if (optind == argc) {
231 fprintf(stderr, "\n");
232 fprintf(stderr, "Usage: bamtk pileup [options] <in.bam>|<in.sam>\n\n");
233 fprintf(stderr, "Option: -s simple (yet incomplete) pileup format\n");
234 fprintf(stderr, " -i only show lines/consensus with indels\n");
235 fprintf(stderr, " -m INT filtering reads with bits in INT [%d]\n", d->mask);
236 fprintf(stderr, " -t FILE list of reference sequences (assume the input is in SAM)\n");
237 fprintf(stderr, " -l FILE list of sites at which pileup is output\n");
238 fprintf(stderr, " -f FILE reference sequence in the FASTA format\n\n");
239 fprintf(stderr, " -c output the maq consensus sequence\n");
240 fprintf(stderr, " -g output in the extended GLT format (suppressing -c/-i/-s)\n");
241 fprintf(stderr, " -T FLOAT theta in maq consensus calling model (for -c/-g) [%f]\n", d->c->theta);
242 fprintf(stderr, " -N INT number of haplotypes in the sample (for -c/-g) [%d]\n", d->c->n_hap);
243 fprintf(stderr, " -r FLOAT prior of a difference between two haplotypes (for -c/-g) [%f]\n", d->c->het_rate);
244 fprintf(stderr, " -G FLOAT prior of an indel between two haplotypes (for -c/-g) [%f]\n", d->ido->r_indel);
245 fprintf(stderr, " -I INT phred prob. of an indel in sequencing/prep. (for -c/-g) [%d]\n", d->ido->q_indel);
246 fprintf(stderr, "\n");
247 free(fn_list); free(fn_fa); free(d);
250 if (fn_fa) d->fai = fai_load(fn_fa);
252 bam_maqcns_prepare(d->c);
253 if (d->format & BAM_PLF_GLF) {
255 h = glf3_header_init();
256 d->fp = bgzf_fdopen(fileno(stdout), "w");
257 glf3_header_write(d->fp, h);
258 glf3_header_destroy(h);
264 bam_plbuf_t *buf = bam_plbuf_init(pileup_func, d);
265 bam_plbuf_set_mask(buf, d->mask);
266 d->h = sam_header_read2(fn_list);
267 if (fn_pos) d->hash = load_pos(fn_pos, d->h);
268 fp = sam_open(argv[optind]);
269 b = (bam1_t*)calloc(1, sizeof(bam1_t));
270 while ((ret = sam_read1(fp, d->h, b)) >= 0)
271 bam_plbuf_push(b, buf);
272 bam_plbuf_push(0, buf);
273 bam_plbuf_destroy(buf);
278 fp = (strcmp(argv[optind], "-") == 0)? bam_dopen(fileno(stdin), "r") : bam_open(argv[optind], "r");
279 d->h = bam_header_read(fp);
280 if (fn_pos) d->hash = load_pos(fn_pos, d->h);
281 bam_pileup_file(fp, d->mask, pileup_func, d);
284 if (d->format & BAM_PLF_GLF) bgzf_close(d->fp);
285 free(fn_pos); free(fn_list);
286 kh_destroy(64, d->hash);
287 bam_header_destroy(d->h);
288 if (d->fai) fai_destroy(d->fai);
289 bam_maqcns_destroy(d->c);
290 free(d->ido); free(d->ref); free(d);