diff options
Diffstat (limited to 'tiff/tools/tiffmedian.c')
-rw-r--r-- | tiff/tools/tiffmedian.c | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/tiff/tools/tiffmedian.c b/tiff/tools/tiffmedian.c index bd0d1561..6654cd6f 100644 --- a/tiff/tools/tiffmedian.c +++ b/tiff/tools/tiffmedian.c @@ -54,6 +54,13 @@ #include "tiffio.h" +#ifndef EXIT_SUCCESS +#define EXIT_SUCCESS 0 +#endif +#ifndef EXIT_FAILURE +#define EXIT_FAILURE 1 +#endif + #define MAX_CMAP_SIZE 256 #define streq(a,b) (strcmp(a,b) == 0) @@ -106,7 +113,7 @@ static void quant(TIFF*, TIFF*); static void quant_fsdither(TIFF*, TIFF*); static Colorbox* largest_box(void); -static void usage(void); +static void usage(int); static int processCompressOptions(char*); #define CopyField(tag, v) \ @@ -127,11 +134,11 @@ main(int argc, char* argv[]) #endif num_colors = MAX_CMAP_SIZE; - while ((c = getopt(argc, argv, "c:C:r:f")) != -1) + while ((c = getopt(argc, argv, "c:C:r:fh")) != -1) switch (c) { case 'c': /* compression scheme */ if (!processCompressOptions(optarg)) - usage(); + usage(EXIT_FAILURE); break; case 'C': /* set colormap size */ num_colors = atoi(optarg); @@ -139,7 +146,7 @@ main(int argc, char* argv[]) fprintf(stderr, "-c: colormap too big, max %d\n", MAX_CMAP_SIZE); - usage(); + usage(EXIT_FAILURE); } break; case 'f': /* dither */ @@ -148,15 +155,18 @@ main(int argc, char* argv[]) case 'r': /* rows/strip */ rowsperstrip = atoi(optarg); break; + case 'h': + usage(EXIT_SUCCESS); + /*NOTREACHED*/ case '?': - usage(); + usage(EXIT_FAILURE); /*NOTREACHED*/ } if (argc - optind != 2) - usage(); + usage(EXIT_FAILURE); in = TIFFOpen(argv[optind], "r"); if (in == NULL) - return (-1); + return (EXIT_FAILURE); TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &imagewidth); TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength); TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample); @@ -164,18 +174,18 @@ main(int argc, char* argv[]) if (bitspersample != 8 && bitspersample != 16) { fprintf(stderr, "%s: Image must have at least 8-bits/sample\n", argv[optind]); - return (-3); + return (EXIT_FAILURE); } if (!TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &photometric) || photometric != PHOTOMETRIC_RGB || samplesperpixel < 3) { fprintf(stderr, "%s: Image must have RGB data\n", argv[optind]); - return (-4); + return (EXIT_FAILURE); } TIFFGetField(in, TIFFTAG_PLANARCONFIG, &config); if (config != PLANARCONFIG_CONTIG) { fprintf(stderr, "%s: Can only handle contiguous data packing\n", argv[optind]); - return (-5); + return (EXIT_FAILURE); } /* @@ -245,7 +255,7 @@ main(int argc, char* argv[]) */ out = TIFFOpen(argv[optind+1], "w"); if (out == NULL) - return (-2); + return (EXIT_FAILURE); CopyField(TIFFTAG_SUBFILETYPE, longv); CopyField(TIFFTAG_IMAGEWIDTH, longv); @@ -290,7 +300,7 @@ main(int argc, char* argv[]) } TIFFSetField(out, TIFFTAG_COLORMAP, rm, gm, bm); (void) TIFFClose(out); - return (0); + return (EXIT_SUCCESS); } static int @@ -333,16 +343,15 @@ NULL }; static void -usage(void) +usage(int code) { - char buf[BUFSIZ]; int i; + FILE * out = (code == EXIT_SUCCESS) ? stdout : stderr; - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); + fprintf(out, "%s\n\n", TIFFGetVersion()); for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); + fprintf(out, "%s\n", stuff[i]); + exit(code); } static void @@ -356,7 +365,7 @@ get_histogram(TIFF* in, Colorbox* box) inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); if (inputline == NULL) { fprintf(stderr, "No space for scanline buffer\n"); - exit(-1); + exit(EXIT_FAILURE); } box->rmin = box->gmin = box->bmin = 999; box->rmax = box->gmax = box->bmax = -1; @@ -378,7 +387,7 @@ get_histogram(TIFF* in, Colorbox* box) fprintf(stderr, "Logic error. " "Histogram array overflow!\n"); - exit(-6); + exit(EXIT_FAILURE); } if (red < box->rmin) box->rmin = red; |