8 // then alias bgzf_*() functions
11 static int glf3_is_BE = 0;
13 static inline uint32_t bam_swap_endian_4(uint32_t v)
15 v = ((v & 0x0000FFFFU) << 16) | (v >> 16);
16 return ((v & 0x00FF00FFU) << 8) | ((v & 0xFF00FF00U) >> 8);
19 static inline uint16_t bam_swap_endian_2(uint16_t v)
21 return (uint16_t)(((v & 0x00FF00FFU) << 8) | ((v & 0xFF00FF00U) >> 8));
24 static inline int bam_is_big_endian()
27 return !(*((char *)(&one)));
30 glf3_header_t *glf3_header_init()
32 glf3_is_BE = bam_is_big_endian();
33 return (glf3_header_t*)calloc(1, sizeof(glf3_header_t));
36 glf3_header_t *glf3_header_read(glfFile fp)
40 h = glf3_header_init();
41 bgzf_read(fp, magic, 4);
42 if (strncmp(magic, "GLF\3", 4)) {
43 fprintf(pysamerr, "[glf3_header_read] invalid magic.\n");
44 glf3_header_destroy(h);
47 bgzf_read(fp, &h->l_text, 4);
48 if (glf3_is_BE) h->l_text = bam_swap_endian_4(h->l_text);
50 h->text = (uint8_t*)calloc(h->l_text + 1, 1);
51 bgzf_read(fp, h->text, h->l_text);
56 void glf3_header_write(glfFile fp, const glf3_header_t *h)
59 bgzf_write(fp, "GLF\3", 4);
60 x = glf3_is_BE? bam_swap_endian_4(h->l_text) : h->l_text;
61 bgzf_write(fp, &x, 4);
62 if (h->l_text) bgzf_write(fp, h->text, h->l_text);
65 void glf3_header_destroy(glf3_header_t *h)
71 char *glf3_ref_read(glfFile fp, int *len)
76 if (bgzf_read(fp, &n, 4) != 4) return 0;
77 if (glf3_is_BE) n = bam_swap_endian_4(n);
79 fprintf(pysamerr, "[glf3_ref_read] invalid reference name length: %d.\n", n);
82 str = (char*)calloc(n + 1, 1); // not necesarily n+1 in fact
83 x = bgzf_read(fp, str, n);
84 x += bgzf_read(fp, len, 4);
86 free(str); *len = -1; return 0; // truncated
88 if (glf3_is_BE) *len = bam_swap_endian_4(*len);
92 void glf3_ref_write(glfFile fp, const char *str, int len)
94 int32_t m, n = strlen(str) + 1;
95 m = glf3_is_BE? bam_swap_endian_4(n) : n;
96 bgzf_write(fp, &m, 4);
97 bgzf_write(fp, str, n);
98 if (glf3_is_BE) len = bam_swap_endian_4(len);
99 bgzf_write(fp, &len, 4);
102 void glf3_view1(const char *ref_name, const glf3_t *g3, int pos)
105 if (g3->rtype == GLF3_RTYPE_END) return;
106 printf("%s\t%d\t%c\t%d\t%d\t%d", ref_name, pos + 1,
107 g3->rtype == GLF3_RTYPE_INDEL? '*' : "XACMGRSVTWYHKDBN"[g3->ref_base],
108 g3->depth, g3->rms_mapQ, g3->min_lk);
109 if (g3->rtype == GLF3_RTYPE_SUB)
110 for (j = 0; j != 10; ++j) printf("\t%d", g3->lk[j]);
112 printf("\t%d\t%d\t%d\t%d\t%d\t%s\t%s\t", g3->lk[0], g3->lk[1], g3->lk[2], g3->indel_len[0], g3->indel_len[1],
113 g3->indel_len[0]? g3->indel_seq[0] : "*", g3->indel_len[1]? g3->indel_seq[1] : "*");
118 int glf3_write1(glfFile fp, const glf3_t *g3)
123 c = g3->rtype<<4 | g3->ref_base;
124 r = bgzf_write(fp, &c, 1);
125 if (g3->rtype == GLF3_RTYPE_END) return r;
127 y[1] = g3->min_lk<<24 | g3->depth;
129 y[0] = bam_swap_endian_4(y[0]);
130 y[1] = bam_swap_endian_4(y[1]);
132 r += bgzf_write(fp, y, 8);
133 r += bgzf_write(fp, &g3->rms_mapQ, 1);
134 if (g3->rtype == GLF3_RTYPE_SUB) r += bgzf_write(fp, g3->lk, 10);
137 r += bgzf_write(fp, g3->lk, 3);
138 x[0] = glf3_is_BE? bam_swap_endian_2(g3->indel_len[0]) : g3->indel_len[0];
139 x[1] = glf3_is_BE? bam_swap_endian_2(g3->indel_len[1]) : g3->indel_len[1];
140 r += bgzf_write(fp, x, 4);
141 if (g3->indel_len[0]) r += bgzf_write(fp, g3->indel_seq[0], abs(g3->indel_len[0]));
142 if (g3->indel_len[1]) r += bgzf_write(fp, g3->indel_seq[1], abs(g3->indel_len[1]));
148 #define kv_roundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x))
151 int glf3_read1(glfFile fp, glf3_t *g3)
156 r = bgzf_read(fp, &c, 1);
157 if (r == 0) return 0;
158 g3->ref_base = c & 0xf;
160 if (g3->rtype == GLF3_RTYPE_END) return r;
161 r += bgzf_read(fp, y, 8);
163 y[0] = bam_swap_endian_4(y[0]);
164 y[1] = bam_swap_endian_4(y[1]);
167 g3->min_lk = y[1]>>24;
168 g3->depth = y[1]<<8>>8;
169 r += bgzf_read(fp, &g3->rms_mapQ, 1);
170 if (g3->rtype == GLF3_RTYPE_SUB) r += bgzf_read(fp, g3->lk, 10);
173 r += bgzf_read(fp, g3->lk, 3);
174 r += bgzf_read(fp, x, 4);
176 x[0] = bam_swap_endian_2(x[0]);
177 x[1] = bam_swap_endian_2(x[1]);
179 g3->indel_len[0] = x[0];
180 g3->indel_len[1] = x[1];
181 x[0] = abs(x[0]); x[1] = abs(x[1]);
182 max = (x[0] > x[1]? x[0] : x[1]) + 1;
183 if (g3->max_len < max) {
185 kv_roundup32(g3->max_len);
186 g3->indel_seq[0] = (char*)realloc(g3->indel_seq[0], g3->max_len);
187 g3->indel_seq[1] = (char*)realloc(g3->indel_seq[1], g3->max_len);
189 r += bgzf_read(fp, g3->indel_seq[0], x[0]);
190 r += bgzf_read(fp, g3->indel_seq[1], x[1]);
191 g3->indel_seq[0][x[0]] = g3->indel_seq[1][x[1]] = 0;
196 void glf3_view(glfFile fp)
202 h = glf3_header_read(fp);
204 while ((name = glf3_ref_read(fp, &len)) != 0) {
206 while (glf3_read1(fp, g3) && g3->rtype != GLF3_RTYPE_END) {
208 glf3_view1(name, g3, pos);
212 glf3_header_destroy(h);
216 int glf3_view_main(int argc, char *argv[])
220 fprintf(pysamerr, "Usage: glfview <in.glf>\n");
223 fp = (strcmp(argv[1], "-") == 0)? bgzf_fdopen(fileno(stdin), "r") : bgzf_open(argv[1], "r");
225 fprintf(pysamerr, "Fail to open file '%s'\n", argv[1]);
234 int main(int argc, char *argv[])
236 return glf3_view_main(argc, argv);