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#include "sam_header.h"
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static int g_min_mapQ = 0, g_flag_on = 0, g_flag_off = 0;
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static char *g_library, *g_rg;
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static int g_sol2sanger_tbl[128];
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static void sol2sanger(bam1_t *b)
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uint8_t *qual = bam1_qual(b);
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if (g_sol2sanger_tbl[30] == 0) {
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for (l = 0; l != 128; ++l) {
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g_sol2sanger_tbl[l] = (int)(10.0 * log(1.0 + pow(10.0, (l - 64 + 33) / 10.0)) / log(10.0) + .499);
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if (g_sol2sanger_tbl[l] >= 93) g_sol2sanger_tbl[l] = 93;
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for (l = 0; l < b->core.l_qseq; ++l) {
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qual[l] = g_sol2sanger_tbl[q];
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static inline int __g_skip_aln(const bam_header_t *h, const bam1_t *b)
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if (b->core.qual < g_min_mapQ || ((b->core.flag & g_flag_on) != g_flag_on) || (b->core.flag & g_flag_off))
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if (g_library || g_rg) {
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uint8_t *s = bam_aux_get(b, "RG");
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if (g_rg && strcmp(g_rg, (char*)(s + 1)) == 0) return 0;
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const char *p = bam_strmap_get(h->rg2lib, (char*)(s + 1));
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return (p && strcmp(p, g_library) == 0)? 0 : 1;
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if (s && strcmp(g_rg, (char*)(s + 1)) == 0) return 0;
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const char *p = bam_get_library((bam_header_t*)h, b);
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return (p && strcmp(p, g_library) == 0)? 0 : 1;
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// callback function for bam_fetch()
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int main_samview(int argc, char *argv[])
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int c, is_header = 0, is_header_only = 0, is_bamin = 1, ret = 0, is_uncompressed = 0, is_bamout = 0;
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int c, is_header = 0, is_header_only = 0, is_bamin = 1, ret = 0, is_uncompressed = 0, is_bamout = 0, slx2sngr = 0;
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int of_type = BAM_OFDEC, is_long_help = 0;
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samfile_t *in = 0, *out = 0;
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char in_mode[5], out_mode[5], *fn_out = 0, *fn_list = 0, *fn_ref = 0;
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/* parse command-line options */
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strcpy(in_mode, "r"); strcpy(out_mode, "w");
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while ((c = getopt(argc, argv, "Sbt:hHo:q:f:F:ul:r:xX?T:")) >= 0) {
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while ((c = getopt(argc, argv, "Sbt:hHo:q:f:F:ul:r:xX?T:C")) >= 0) {
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case 'C': slx2sngr = 1; break;
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case 'S': is_bamin = 0; break;
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case 'b': is_bamout = 1; break;
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case 't': fn_list = strdup(optarg); is_bamin = 0; break;
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if (argc == optind + 1) { // convert/print the entire file
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bam1_t *b = bam_init1();
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while ((r = samread(in, b)) >= 0) // read one alignment from `in'
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if (!__g_skip_aln(in->header, b))
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while ((r = samread(in, b)) >= 0) { // read one alignment from `in'
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if (!__g_skip_aln(in->header, b)) {
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if (slx2sngr) sol2sanger(b);
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samwrite(out, b); // write the alignment to `out'
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if (r < -1) fprintf(stderr, "[main_samview] truncated file.\n");
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} else { // retrieve alignments in specified regions