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/* Copyright (c) 1991 Regents of the University of California */ |
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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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* flip picture file horizontally and/or vertically |
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*/ |
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#include "standard.h" |
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#include <stdio.h> |
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#ifdef MSDOS |
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#include <fcntl.h> |
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#endif |
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|
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#include "color.h" |
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int xres, yres; /* input resolution */ |
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#include "resolu.h" |
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int order; /* input orientation */ |
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int xres, yres; /* resolution (scanlen, nscans) */ |
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long *scanpos; /* scanline positions */ |
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int fhoriz, fvert; /* flip flags */ |
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int fhoriz=0, fvert=0; /* flip flags */ |
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int correctorder = 0; /* correcting orientation? */ |
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FILE *fin; /* input file */ |
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char *progname; |
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extern char *malloc(); |
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|
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int |
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neworder() /* figure out new order from old */ |
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{ |
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register int no; |
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|
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if (correctorder) |
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return(order); /* just leave it */ |
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if ((no = order) & YMAJOR) { |
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if (fhoriz) no ^= XDECR; |
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if (fvert) no ^= YDECR; |
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} else { |
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if (fhoriz) no ^= YDECR; |
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if (fvert) no ^= XDECR; |
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} |
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return(no); |
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} |
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|
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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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int i; |
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#ifdef MSDOS |
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extern int _fmode; |
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_fmode = O_BINARY; |
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setmode(fileno(stdout), O_BINARY); |
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#endif |
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progname = argv[0]; |
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for (i = 1; i < argc; i++) |
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fhoriz++; |
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else if (!strcmp(argv[i], "-v")) |
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fvert++; |
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else if (!strcmp(argv[i], "-c")) |
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correctorder++; |
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else |
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break; |
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if (i >= argc || argv[i][0] == '-') { |
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fprintf(stderr, "Usage: %s [-h][-v] infile [outfile]\n", |
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fprintf(stderr, "Usage: %s [-h][-v][-c] infile [outfile]\n", |
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progname); |
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exit(1); |
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} |
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exit(1); |
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} |
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/* transfer header */ |
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copyheader(fin, stdout); |
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if (checkheader(fin, COLRFMT, stdout) < 0) { |
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fprintf(stderr, "%s: input not a Radiance picture\n", |
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progname); |
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exit(1); |
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} |
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/* add new header info. */ |
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printargs(i, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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putchar('\n'); |
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/* get picture size */ |
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if (fgetresolu(&xres, &yres, fin) != (YMAJOR|YDECR)) { |
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if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
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fprintf(stderr, "%s: bad picture size\n", progname); |
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exit(1); |
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} |
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/* write new picture size */ |
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fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
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fputresolu(neworder(), xres, yres, stdout); |
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/* goto end if vertical flip */ |
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if (fvert) |
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scanfile(); |
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memerr(); |
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if ((scanin = (COLR *)malloc(xres*sizeof(COLR))) == NULL) |
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memerr(); |
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for (y = yres-1; y >= 0; y--) { |
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for (y = yres-1; y > 0; y--) { |
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scanpos[y] = ftell(fin); |
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if (freadcolrs(scanin, xres, fin) < 0) { |
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fprintf(stderr, "%s: read error\n", progname); |
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exit(1); |
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} |
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} |
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scanpos[0] = ftell(fin); |
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free((char *)scanin); |
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} |
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} |
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} |
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free((char *)scanin); |
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free((char *)scanout); |
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if (fhoriz) |
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free((char *)scanout); |
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} |
