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#ifndef lint |
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static const char RCSid[] = "$Id: rsplit.c,v 1.16 2024/06/07 18:19:22 greg Exp $"; |
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#endif |
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/* |
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* rsplit.c - split input into multiple output streams |
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* |
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* 7/4/19 Greg Ward |
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*/ |
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|
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#include <ctype.h> |
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|
| 12 |
#include "rtio.h" |
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#include "platform.h" |
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#include "paths.h" |
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#include "resolu.h" |
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|
| 17 |
#define DOHEADER 1 |
| 18 |
#define DORESOLU 2 |
| 19 |
|
| 20 |
int swapped = 0; /* input is byte-swapped */ |
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|
| 22 |
struct outstream { /* structure to hold output stream info */ |
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const char *outspec; /* output specification */ |
| 24 |
FILE *output; /* output stream */ |
| 25 |
int ncomp; /* component count */ |
| 26 |
int bytsiz; /* bytes/component if binary */ |
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int hdrflags; /* header output flags */ |
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int termc; /* data separation character */ |
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const char *format; /* data format */ |
| 30 |
} *rofile = NULL; |
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|
| 32 |
int nfiles = 0; /* output file count */ |
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|
| 34 |
RESOLU ourres = {PIXSTANDARD, 0, 0}; |
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|
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char buf[16384]; /* input buffer used in scanOK() */ |
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|
| 38 |
|
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/* process header line */ |
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int |
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headline(char *s, void *p) |
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{ |
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extern const char FMTSTR[]; |
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int i; |
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|
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if (strstr(s, FMTSTR) == s) |
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return(0); /* don't copy format */ |
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if (!strncmp(s, "NROWS=", 6)) |
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return(0); |
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if (!strncmp(s, "NCOLS=", 6)) |
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return(0); |
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if (!strncmp(s, "NCOMP=", 6)) |
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return(0); |
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if ((i = isbigendian(s)) >= 0) { |
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swapped = (nativebigendian() != i); |
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return(0); |
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} |
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i = nfiles; |
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while (i--) /* else copy line to output streams */ |
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if (rofile[i].hdrflags & DOHEADER) |
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fputs(s, rofile[i].output); |
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return(1); |
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} |
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|
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|
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/* scan field into buffer up to and including terminating byte */ |
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int |
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scanOK(int termc) |
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{ |
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int skip_white = (termc == ' '); |
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char *cp = buf; |
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int c; |
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|
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while ((c = getchar()) != EOF) { |
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if (skip_white && isspace(c)) |
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continue; |
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skip_white = 0; |
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if (c == '\n' && isspace(termc)) |
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c = termc; /* forgiving assumption */ |
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*cp++ = c; |
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if (cp-buf >= sizeof(buf)) |
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break; |
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if ((termc == ' ') ? isspace(c) : (c == termc)) { |
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*cp = '\0'; |
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return(cp-buf); |
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} |
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} |
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return(0); |
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} |
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|
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|
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int |
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main(int argc, char *argv[]) |
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{ |
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int inpflags = 0; |
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int needres = 0; |
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int force = 0; |
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int append = 0; |
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long outcnt = 0; |
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int bininp = 0; |
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int nstdoutcomp = 0; |
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int curterm = '\n'; |
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int curncomp = 1; |
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int curbytes = 0; |
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int curflags = 0; |
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const char *curfmt = "ascii"; |
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int i; |
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|
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rofile = (struct outstream *)calloc(argc-1, sizeof(struct outstream)); |
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if (!rofile) { |
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fputs(argv[0], stderr); |
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fputs(": not enough memory\n", stderr); |
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return(1); |
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} |
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for (i = 1; i < argc; i++) { |
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if (argv[i][0] == '-') { |
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switch (argv[i][1]) { |
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case 't': |
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curterm = argv[i][2]; |
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if (!curterm) curterm = '\n'; |
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break; |
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case 'i': |
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switch (argv[i][2]) { |
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case 'h': |
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inpflags ^= DOHEADER; |
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break; |
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case 'H': |
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inpflags ^= DORESOLU; |
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break; |
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default: |
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goto badopt; |
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} |
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break; |
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case 'f': |
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force = !force; |
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break; |
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case 'a': |
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append = !append; |
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break; |
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case 'x': |
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ourres.xr = atoi(argv[++i]); |
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break; |
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case 'y': |
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ourres.yr = atoi(argv[++i]); |
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break; |
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case 'o': |
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switch (argv[i][2]) { |
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case 'n': |
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outcnt = atol(argv[++i]); |
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continue; |
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case 'h': |
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curflags ^= DOHEADER; |
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continue; |
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case 'H': |
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curflags ^= DORESOLU; |
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continue; |
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case 'f': |
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curfmt = "float"; |
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curbytes = sizeof(float); |
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break; |
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case 'd': |
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curfmt = "double"; |
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curbytes = sizeof(double); |
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break; |
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case 'i': |
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curfmt = "int"; |
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curbytes = sizeof(int); |
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break; |
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case 'w': |
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curfmt = "16-bit"; |
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curbytes = 2; |
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break; |
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case 'b': |
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curfmt = "byte"; |
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curbytes = 1; |
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break; |
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case 'a': |
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curfmt = "ascii"; |
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curbytes = 0; |
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break; |
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default: |
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goto badopt; |
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} |
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curncomp = isdigit(argv[i][3]) ? |
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atoi(argv[i]+3) : 1 ; |
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if (curbytes*curncomp > (int)sizeof(buf)) { |
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fputs(argv[0], stderr); |
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fputs(": output size too big\n", stderr); |
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return(1); |
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} |
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bininp += (curbytes > 0); |
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break; |
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case '\0': /* stdout */ |
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if (!nstdoutcomp) { /* first use? */ |
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needres |= (curflags & DORESOLU); |
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rofile[nfiles].hdrflags = curflags; |
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} |
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rofile[nfiles].output = stdout; |
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if (curbytes > 0) |
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SET_FILE_BINARY(rofile[nfiles].output); |
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rofile[nfiles].termc = curterm; |
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rofile[nfiles].format = curfmt; |
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nstdoutcomp += |
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rofile[nfiles].ncomp = curncomp; |
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rofile[nfiles].bytsiz = curbytes; |
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rofile[nfiles++].outspec = argv[i]; |
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break; |
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badopt:; |
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default: |
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fputs(argv[0], stderr); |
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fputs(": bad option\n", stderr); |
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return(1); |
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} |
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} else if (argv[i][0] == '.' && !argv[i][1]) { |
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rofile[nfiles].output = NULL; /* discard data */ |
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rofile[nfiles].termc = curterm; |
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rofile[nfiles].format = curfmt; |
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rofile[nfiles].ncomp = curncomp; |
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rofile[nfiles].bytsiz = curbytes; |
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rofile[nfiles++].outspec = argv[i]; |
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} else if (argv[i][0] == '!') { |
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needres |= (curflags & DORESOLU); |
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rofile[nfiles].hdrflags = curflags; |
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rofile[nfiles].termc = curterm; |
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if ((rofile[nfiles].output = popen(argv[i]+1, "w")) == NULL) { |
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fputs(argv[i], stderr); |
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fputs(": cannot start command\n", stderr); |
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return(1); |
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} |
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if (curbytes > 0) |
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SET_FILE_BINARY(rofile[nfiles].output); |
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rofile[nfiles].format = curfmt; |
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rofile[nfiles].ncomp = curncomp; |
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rofile[nfiles].bytsiz = curbytes; |
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rofile[nfiles++].outspec = argv[i]; |
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} else { |
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int j = nfiles; |
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while (j--) /* check duplicates */ |
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if (!strcmp(argv[i], rofile[j].outspec)) { |
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fputs(argv[0], stderr); |
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fputs(": duplicate output: ", stderr); |
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fputs(argv[i], stderr); |
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fputc('\n', stderr); |
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return(1); |
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} |
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if (append & (curflags != 0)) { |
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fputs(argv[0], stderr); |
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fputs(": -a option incompatible with -oh and -oH\n", |
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stderr); |
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return(1); |
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} |
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needres |= (curflags & DORESOLU); |
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rofile[nfiles].hdrflags = curflags; |
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rofile[nfiles].termc = curterm; |
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if (!append & !force && access(argv[i], F_OK) == 0) { |
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fputs(argv[i], stderr); |
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fputs(": file exists -- use -f to overwrite\n", |
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stderr); |
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return(1); |
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} |
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rofile[nfiles].output = fopen(argv[i], append ? "a" : "w"); |
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if (!rofile[nfiles].output) { |
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fputs(argv[i], stderr); |
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fputs(": cannot open for output\n", stderr); |
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return(1); |
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} |
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if (curbytes > 0) |
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SET_FILE_BINARY(rofile[nfiles].output); |
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rofile[nfiles].format = curfmt; |
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rofile[nfiles].ncomp = curncomp; |
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rofile[nfiles].bytsiz = curbytes; |
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rofile[nfiles++].outspec = argv[i]; |
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} |
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} |
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if (!nfiles) { |
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fputs(argv[0], stderr); |
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fputs(": no output streams\n", stderr); |
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return(1); |
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} /* reduce array to size we need */ |
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rofile = (struct outstream *)realloc(rofile, nfiles*sizeof(struct outstream)); |
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if (!rofile) { |
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fputs(argv[0], stderr); |
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fputs(": realloc() failed!\n", stderr); |
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return(1); |
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} |
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if (bininp) /* binary input? */ |
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SET_FILE_BINARY(stdin); |
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#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
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flockfile(stdin); |
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for (i = nfiles; i--; ) |
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if (rofile[i].output != NULL) |
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ftrylockfile(rofile[i].output); |
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#endif |
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/* load/copy header */ |
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if (inpflags & DOHEADER && getheader(stdin, headline, NULL) < 0) { |
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fputs(argv[0], stderr); |
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fputs(": cannot read header from standard input\n", |
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stderr); |
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return(1); |
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} |
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/* handle resolution string */ |
| 302 |
if (inpflags & DORESOLU && !fgetsresolu(&ourres, stdin)) { |
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fputs(argv[0], stderr); |
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fputs(": bad resolution string on standard input\n", stderr); |
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return(1); |
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} |
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if (needres && (ourres.xr <= 0) | (ourres.yr <= 0)) { |
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fputs(argv[0], stderr); |
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fputs(": -oH option requires -iH or -x and -y options\n", stderr); |
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return(1); |
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} |
| 312 |
if ((ourres.xr > 0) & (ourres.yr > 0)) { |
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if (outcnt <= 0) { |
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outcnt = ourres.xr * ourres.yr; |
| 315 |
} else if (outcnt != ourres.xr*ourres.yr) { |
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fputs(argv[0], stderr); |
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fputs(": warning: -on option does not agree with resolution\n", |
| 318 |
stderr); |
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} |
| 320 |
} |
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for (i = 0; i < nfiles; i++) { /* complete headers */ |
| 322 |
if (rofile[i].hdrflags & DOHEADER) { |
| 323 |
if (!(inpflags & DOHEADER)) |
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newheader("RADIANCE", rofile[i].output); |
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printargs(argc, argv, rofile[i].output); |
| 326 |
fprintf(rofile[i].output, "NCOMP=%d\n", rofile[i].output==stdout ? |
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nstdoutcomp : rofile[i].ncomp); |
| 328 |
if (rofile[i].format != NULL) { |
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extern const char BIGEND[]; |
| 330 |
if (rofile[i].bytsiz > 1) { |
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fputs(BIGEND, rofile[i].output); |
| 332 |
fputs(nativebigendian() ^ swapped ? |
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"1\n" : "0\n", rofile[i].output); |
| 334 |
} |
| 335 |
fputformat(rofile[i].format, rofile[i].output); |
| 336 |
} |
| 337 |
fputc('\n', rofile[i].output); |
| 338 |
} |
| 339 |
if (rofile[i].hdrflags & DORESOLU) |
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fputsresolu(&ourres, rofile[i].output); |
| 341 |
} |
| 342 |
do { /* main loop */ |
| 343 |
for (i = 0; i < nfiles; i++) { |
| 344 |
if (rofile[i].bytsiz > 0) { /* binary output */ |
| 345 |
if (getbinary(buf, rofile[i].bytsiz, rofile[i].ncomp, |
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stdin) != rofile[i].ncomp) |
| 347 |
break; |
| 348 |
if (rofile[i].output != NULL && |
| 349 |
putbinary(buf, rofile[i].bytsiz, rofile[i].ncomp, |
| 350 |
rofile[i].output) != rofile[i].ncomp) |
| 351 |
break; |
| 352 |
} else if (rofile[i].ncomp > 1) { /* N-field output */ |
| 353 |
int n = rofile[i].ncomp; |
| 354 |
while (n--) { |
| 355 |
if (!scanOK(rofile[i].termc)) |
| 356 |
break; |
| 357 |
if (rofile[i].output != NULL && |
| 358 |
fputs(buf, rofile[i].output) == EOF) |
| 359 |
break; |
| 360 |
} |
| 361 |
if (n >= 0) /* fell short? */ |
| 362 |
break; |
| 363 |
if ((rofile[i].output != NULL) & /* add EOL if none */ |
| 364 |
(rofile[i].termc != '\n')) |
| 365 |
fputc('\n', rofile[i].output); |
| 366 |
} else { /* 1-field output */ |
| 367 |
if (!scanOK(rofile[i].termc)) |
| 368 |
break; |
| 369 |
if (rofile[i].output != NULL) { |
| 370 |
if (fputs(buf, rofile[i].output) == EOF) |
| 371 |
break; |
| 372 |
if (rofile[i].termc != '\n') /* add EOL? */ |
| 373 |
fputc('\n', rofile[i].output); |
| 374 |
} |
| 375 |
} |
| 376 |
/* skip input EOL? */ |
| 377 |
if (!bininp && rofile[nfiles-1].termc != '\n') { |
| 378 |
int c = getchar(); |
| 379 |
if ((c != '\n') & (c != EOF)) |
| 380 |
ungetc(c, stdin); |
| 381 |
} |
| 382 |
} |
| 383 |
if (i < nfiles) |
| 384 |
break; |
| 385 |
} while (--outcnt); |
| 386 |
/* check ending */ |
| 387 |
if (fflush(NULL) == EOF) { |
| 388 |
fputs(argv[0], stderr); |
| 389 |
fputs(": write error on one or more outputs\n", stderr); |
| 390 |
return(1); |
| 391 |
} |
| 392 |
if (outcnt > 0) { |
| 393 |
fputs(argv[0], stderr); |
| 394 |
fputs(": warning: premature EOD\n", stderr); |
| 395 |
} |
| 396 |
return(0); |
| 397 |
} |
