// Called just before starting to write a new field.
int fitstable_new_table(fitstable_t* t) {
if (t->table) {
qfits_table_close(t->table);
}
fitstable_create_table(t);
if (t->header) {
qfits_header_destroy(t->header);
}
t->header = qfits_table_ext_header_default(t->table);
return 0;
}
int main(int argc, char *argv[]) {
int argchar;
char* infn = NULL;
char* outfn = NULL;
FILE* fin = NULL;
FILE* fout = NULL;
pl* cols;
char* progname = argv[0];
int nextens;
int ext;
int NC;
int start, size;
anqfits_t* anq = NULL;
qfits_table* outtable;
unsigned char* buffer;
cols = pl_new(16);
while ((argchar = getopt (argc, argv, OPTIONS)) != -1)
switch (argchar) {
case 'c':
pl_append(cols, optarg);
break;
case 'i':
infn = optarg;
break;
case 'o':
outfn = optarg;
break;
case '?':
case 'h':
printHelp(progname);
return 0;
default:
return -1;
}
if (!infn || !outfn || !pl_size(cols)) {
printHelp(progname);
exit(-1);
}
fin = fopen(infn, "rb");
if (!fin) {
ERROR("Failed to open input file %s: %s\n", infn, strerror(errno));
exit(-1);
}
fout = fopen(outfn, "wb");
if (!fout) {
ERROR("Failed to open output file %s: %s\n", outfn, strerror(errno));
exit(-1);
}
// copy the main header exactly.
anq = anqfits_open(infn);
if (!anq) {
ERROR("Failed to read \"%s\"", infn);
exit(-1);
}
start = anqfits_header_start(anq, 0);
size = anqfits_header_size (anq, 0);
if (pipe_file_offset(fin, start, size, fout)) {
ERROR("Failed to copy primary header.\n");
exit(-1);
}
NC = pl_size(cols);
nextens = anqfits_n_ext(anq);
printf("Translating %i extensions.\n", nextens);
buffer = NULL;
for (ext=1; ext<nextens; ext++) {
int c2, c;
int columns[NC];
int sizes[NC];
int offsets[NC];
int offset = 0;
int off, n;
int totalsize = 0;
const int BLOCK=1000;
qfits_table* table;
qfits_header* header;
qfits_header* tablehdr;
if (ext%100 == 0) {
printf("Extension %i.\n", ext);
fflush(stdout);
}
if (!anqfits_is_table(anq, ext)) {
ERROR("extention %i isn't a table.\n", ext);
// HACK - just copy it.
return -1;
}
table = anqfits_get_table(anq, ext);
if (!table) {
ERROR("failed to open table: file %s, extension %i.\n", infn, ext);
return -1;
}
header = anqfits_get_header(anq, ext);
if (!header) {
ERROR("failed to read header: extension %i\n", ext);
exit(-1);
}
outtable = qfits_table_new(outfn, QFITS_BINTABLE, 0, NC, table->nr);
outtable->tab_w = 0;
for (c=0; c<pl_size(cols); c++) {
columns[c] = -1;
}
for (c=0; c<pl_size(cols); c++) {
char* colname = pl_get(cols, c);
qfits_col* col;
c2 = fits_find_column(table, colname);
if (c2 == -1) {
ERROR("Extension %i: failed to find column named %s\n",
ext, colname);
exit(-1);
}
col = table->col + c2;
columns[c] = c2;
sizes[c] = col->atom_nb * col->atom_size;
offsets[c] = offset;
offset += sizes[c];
qfits_col_fill(outtable->col + c,
col->atom_nb, col->atom_dec_nb,
col->atom_size, col->atom_type,
col->tlabel, col->tunit,
col->nullval, col->tdisp,
col->zero_present,
col->zero,
col->scale_present,
col->scale,
outtable->tab_w);
outtable->tab_w += sizes[c];
}
totalsize = offset;
tablehdr = qfits_table_ext_header_default(outtable);
// add any headers from the original table that aren't part of the BINTABLE extension.
fits_copy_non_table_headers(tablehdr, header);
qfits_header_dump(tablehdr, fout);
qfits_header_destroy(tablehdr);
buffer = realloc(buffer, totalsize * BLOCK);
for (off=0; off<table->nr; off+=n) {
if (off + BLOCK > table->nr)
n = table->nr - off;
else
n = BLOCK;
for (c=0; c<pl_size(cols); c++)
qfits_query_column_seq_to_array_no_endian_swap
(table, columns[c], off, n, buffer + offsets[c], totalsize);
if (fwrite(buffer, totalsize, n, fout) != n) {
ERROR("Error writing a block of data: ext %i: %s\n", ext, strerror(errno));
exit(-1);
}
}
qfits_table_close(outtable);
fits_pad_file(fout);
qfits_header_destroy(header);
qfits_table_close(table);
}
free(buffer);
if (fclose(fout)) {
ERROR("Error closing output file: %s\n", strerror(errno));
}
fclose(fin);
anqfits_close(anq);
pl_free(cols);
return 0;
}