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greg |
2.2 |
/* Copyright (c) 1992 Regents of the University of California */ |
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greg |
1.1 |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* |
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* program to convert from RADIANCE RLE to flat format |
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*/ |
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#include <stdio.h> |
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greg |
2.4 |
#include <math.h> |
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#include "color.h" |
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#include "resolu.h" |
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greg |
2.3 |
#ifdef MSDOS |
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#include <fcntl.h> |
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#endif |
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greg |
1.1 |
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gregl |
2.8 |
extern char *malloc(), *realloc(), *tempbuffer(); |
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extern int addhline(); |
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greg |
2.3 |
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gregl |
2.8 |
#define dumpheader(fp) fwrite(headlines, 1, headlen, fp) |
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greg |
1.1 |
int bradj = 0; /* brightness adjustment */ |
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int doflat = 1; /* produce flat file */ |
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gregl |
2.8 |
int force = 0; /* force file overwrite? */ |
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int findframe = 0; /* find a specific frame? */ |
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int frameno = 0; /* current frame number */ |
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int fmterr = 0; /* got input format error */ |
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char *headlines; /* current header info. */ |
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int headlen; /* current header length */ |
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greg |
1.1 |
char *progname; |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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gregl |
2.8 |
char *ospec; |
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greg |
1.1 |
int i; |
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gregl |
2.7 |
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greg |
1.1 |
progname = argv[0]; |
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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 'r': |
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doflat = !doflat; |
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break; |
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case 'e': |
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if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
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goto userr; |
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bradj = atoi(argv[++i]); |
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break; |
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gregl |
2.8 |
case 'n': |
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findframe = atoi(argv[++i]); |
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break; |
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case 'f': |
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force++; |
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break; |
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case '\0': |
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goto gotfile; |
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greg |
1.1 |
default: |
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goto userr; |
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} |
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else |
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break; |
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gregl |
2.8 |
gotfile: |
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greg |
1.1 |
if (i < argc-2) |
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goto userr; |
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gregl |
2.8 |
if (i <= argc-1 && strcmp(argv[i], "-") && |
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freopen(argv[i], "r", stdin) == NULL) { |
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greg |
1.1 |
fprintf(stderr, "%s: can't open input \"%s\"\n", |
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progname, argv[i]); |
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exit(1); |
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} |
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gregl |
2.7 |
#ifdef MSDOS |
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setmode(fileno(stdin), O_BINARY); |
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#endif |
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gregl |
2.8 |
ospec = i==argc-2 ? argv[i+1] : (char *)NULL; |
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while (transfer(ospec)) |
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; |
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greg |
1.1 |
exit(0); |
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userr: |
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gregl |
2.8 |
fprintf(stderr, |
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"Usage: %s [-r][-e +/-stops][-f][-n frame] [input [outspec]]\n", |
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greg |
1.1 |
progname); |
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exit(1); |
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} |
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gregl |
2.8 |
transfer(ospec) /* transfer a Radiance picture */ |
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char *ospec; |
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greg |
1.1 |
{ |
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gregl |
2.8 |
char oname[128]; |
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FILE *fp; |
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greg |
1.2 |
int order; |
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greg |
2.3 |
int xmax, ymax; |
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greg |
1.1 |
COLR *scanin; |
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int y; |
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gregl |
2.8 |
/* get header info. */ |
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if (!(y = loadheader(stdin))) |
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return(0); |
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if (y < 0 || (order = fgetresolu(&xmax, &ymax, stdin)) < 0) { |
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fprintf(stderr, "%s: bad input format\n", progname); |
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exit(1); |
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} |
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/* did we pass the target frame? */ |
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if (findframe && findframe < frameno) |
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return(0); |
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/* allocate scanline */ |
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scanin = (COLR *)tempbuffer(xmax*sizeof(COLR)); |
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if (scanin == NULL) { |
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perror(progname); |
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exit(1); |
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} |
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/* skip frame? */ |
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if (findframe > frameno) { |
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for (y = ymax; y--; ) |
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if (freadcolrs(scanin, xmax, stdin) < 0) { |
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fprintf(stderr, |
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"%s: error reading input picture\n", |
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progname); |
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exit(1); |
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} |
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return(1); |
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} |
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/* open output file/command */ |
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if (ospec == NULL) { |
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strcpy(oname, "<stdout>"); |
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fp = stdout; |
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} else { |
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sprintf(oname, ospec, frameno); |
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if (oname[0] == '!') { |
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if ((fp = popen(oname+1, "w")) == NULL) { |
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fprintf(stderr, "%s: cannot start \"%s\"\n", |
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progname, oname); |
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exit(1); |
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} |
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} else { |
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if (!force && access(oname, 0) >= 0) { |
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fprintf(stderr, |
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"%s: output file \"%s\" exists\n", |
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progname, oname); |
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exit(1); |
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} |
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if ((fp = fopen(oname, "w")) == NULL) { |
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fprintf(stderr, "%s: ", progname); |
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perror(oname); |
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exit(1); |
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} |
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} |
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} |
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#ifdef MSDOS |
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setmode(fileno(fp), O_BINARY); |
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#endif |
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dumpheader(fp); /* put out header */ |
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fputs(progname, fp); |
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greg |
1.1 |
if (bradj) |
| 166 |
gregl |
2.8 |
fprintf(fp, " -e %+d", bradj); |
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gregl |
2.7 |
if (!doflat) |
| 168 |
gregl |
2.8 |
fputs(" -r", fp); |
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fputc('\n', fp); |
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greg |
2.2 |
if (bradj) |
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gregl |
2.8 |
fputexpos(pow(2.0, (double)bradj), fp); |
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fputc('\n', fp); |
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fputresolu(order, xmax, ymax, fp); |
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/* transfer picture */ |
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gregl |
2.7 |
for (y = ymax; y--; ) { |
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gregl |
2.8 |
if (freadcolrs(scanin, xmax, stdin) < 0) { |
| 177 |
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fprintf(stderr, "%s: error reading input picture\n", |
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progname); |
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exit(1); |
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} |
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greg |
1.1 |
if (bradj) |
| 182 |
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shiftcolrs(scanin, xmax, bradj); |
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if (doflat) |
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gregl |
2.8 |
fwrite((char *)scanin, sizeof(COLR), xmax, fp); |
| 185 |
greg |
1.1 |
else |
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gregl |
2.8 |
fwritecolrs(scanin, xmax, fp); |
| 187 |
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if (ferror(fp)) { |
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fprintf(stderr, "%s: error writing output to \"%s\"\n", |
| 189 |
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progname, oname); |
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exit(1); |
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} |
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greg |
1.1 |
} |
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gregl |
2.8 |
/* clean up */ |
| 194 |
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if (oname[0] == '!') |
| 195 |
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pclose(fp); |
| 196 |
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else if (ospec != NULL) |
| 197 |
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fclose(fp); |
| 198 |
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return(1); |
| 199 |
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} |
| 200 |
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| 201 |
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| 202 |
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addhline(s) /* add a line to our info. header */ |
| 203 |
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char *s; |
| 204 |
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{ |
| 205 |
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char fmt[32]; |
| 206 |
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int n; |
| 207 |
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| 208 |
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if (formatval(fmt, s)) |
| 209 |
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fmterr += !globmatch(PICFMT, fmt); |
| 210 |
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else if (!strncmp(s, "FRAME=", 6)) |
| 211 |
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frameno = atoi(s+6); |
| 212 |
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n = strlen(s); |
| 213 |
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if (headlen) |
| 214 |
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headlines = (char *)realloc(headlines, headlen+n+1); |
| 215 |
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else |
| 216 |
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headlines = (char *)malloc(n+1); |
| 217 |
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if (headlines == NULL) { |
| 218 |
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perror(progname); |
| 219 |
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exit(1); |
| 220 |
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} |
| 221 |
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strcpy(headlines+headlen, s); |
| 222 |
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headlen += n; |
| 223 |
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} |
| 224 |
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| 225 |
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| 226 |
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loadheader(fp) /* load an info. header into memory */ |
| 227 |
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FILE *fp; |
| 228 |
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{ |
| 229 |
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fmterr = 0; frameno = 0; |
| 230 |
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if (headlen) { /* free old header */ |
| 231 |
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free(headlines); |
| 232 |
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headlen = 0; |
| 233 |
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} |
| 234 |
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if (getheader(fp, addhline, NULL) < 0) |
| 235 |
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return(0); |
| 236 |
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if (fmterr) |
| 237 |
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return(-1); |
| 238 |
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return(1); |
| 239 |
greg |
1.1 |
} |
