[wxWidgets.git] / src / tiff / tools / tiffdither.c


/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and 
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 * 
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
 * 
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
 * OF THIS SOFTWARE.
 */

#include "tif_config.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif

#ifdef NEED_LIBPORT
# include "libport.h"
#endif

#include "tiffio.h"

#define	streq(a,b)	(strcmp(a,b) == 0)
#define	strneq(a,b,n)	(strncmp(a,b,n) == 0)

#define	CopyField(tag, v) \
	if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)

uint32	imagewidth;
uint32	imagelength;
int	threshold = 128;

static	void usage(void);

/* 
 * Floyd-Steinberg error propragation with threshold.
 * This code is stolen from tiffmedian.
 */
static void
fsdither(TIFF* in, TIFF* out)
{
	unsigned char *outline, *inputline, *inptr;
	short *thisline, *nextline, *tmpptr;
	register unsigned char	*outptr;
	register short *thisptr, *nextptr;
	register uint32 i, j;
	uint32 imax, jmax;
	int lastline, lastpixel;
	int bit;
	tsize_t outlinesize;

	imax = imagelength - 1;
	jmax = imagewidth - 1;
	inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in));
	thisline = (short *)_TIFFmalloc(imagewidth * sizeof (short));
	nextline = (short *)_TIFFmalloc(imagewidth * sizeof (short));
	outlinesize = TIFFScanlineSize(out);
	outline = (unsigned char *) _TIFFmalloc(outlinesize);

	/*
	 * Get first line
	 */
	if (TIFFReadScanline(in, inputline, 0, 0) <= 0)
            goto skip_on_error;

	inptr = inputline;
	nextptr = nextline;
	for (j = 0; j < imagewidth; ++j)
		*nextptr++ = *inptr++;
	for (i = 1; i < imagelength; ++i) {
		tmpptr = thisline;
		thisline = nextline;
		nextline = tmpptr;
		lastline = (i == imax);
		if (TIFFReadScanline(in, inputline, i, 0) <= 0)
			break;
		inptr = inputline;
		nextptr = nextline;
		for (j = 0; j < imagewidth; ++j)
			*nextptr++ = *inptr++;
		thisptr = thisline;
		nextptr = nextline;
		_TIFFmemset(outptr = outline, 0, outlinesize);
		bit = 0x80;
		for (j = 0; j < imagewidth; ++j) {
			register int v;

			lastpixel = (j == jmax);
			v = *thisptr++;
			if (v < 0)
				v = 0;
			else if (v > 255)
				v = 255;
			if (v > threshold) {
				*outptr |= bit;
				v -= 255;
			}
			bit >>= 1;
			if (bit == 0) {
				outptr++;
				bit = 0x80;
			}
			if (!lastpixel)
				thisptr[0] += v * 7 / 16;
			if (!lastline) {
				if (j != 0)
					nextptr[-1] += v * 3 / 16;
				*nextptr++ += v * 5 / 16;
				if (!lastpixel)
					nextptr[0] += v / 16;
			}
		}
		if (TIFFWriteScanline(out, outline, i-1, 0) < 0)
			break;
	}
  skip_on_error:
	_TIFFfree(inputline);
	_TIFFfree(thisline);
	_TIFFfree(nextline);
	_TIFFfree(outline);
}

static	uint16 compression = COMPRESSION_PACKBITS;
static	uint16 predictor = 0;
static	uint32 group3options = 0;

static void
processG3Options(char* cp)
{
	if ((cp = strchr(cp, ':'))) {
		do {
			cp++;
			if (strneq(cp, "1d", 2))
				group3options &= ~GROUP3OPT_2DENCODING;
			else if (strneq(cp, "2d", 2))
				group3options |= GROUP3OPT_2DENCODING;
			else if (strneq(cp, "fill", 4))
				group3options |= GROUP3OPT_FILLBITS;
			else
				usage();
		} while ((cp = strchr(cp, ':')));
	}
}

static int
processCompressOptions(char* opt)
{
	if (streq(opt, "none"))
		compression = COMPRESSION_NONE;
	else if (streq(opt, "packbits"))
		compression = COMPRESSION_PACKBITS;
	else if (strneq(opt, "g3", 2)) {
		processG3Options(opt);
		compression = COMPRESSION_CCITTFAX3;
	} else if (streq(opt, "g4"))
		compression = COMPRESSION_CCITTFAX4;
	else if (strneq(opt, "lzw", 3)) {
		char* cp = strchr(opt, ':');
		if (cp)
			predictor = atoi(cp+1);
		compression = COMPRESSION_LZW;
	} else if (strneq(opt, "zip", 3)) {
		char* cp = strchr(opt, ':');
		if (cp)
			predictor = atoi(cp+1);
		compression = COMPRESSION_DEFLATE;
	} else
		return (0);
	return (1);
}

int
main(int argc, char* argv[])
{
	TIFF *in, *out;
	uint16 samplesperpixel, bitspersample = 1, shortv;
	float floatv;
	char thing[1024];
	uint32 rowsperstrip = (uint32) -1;
	uint16 fillorder = 0;
	int c;
	extern int optind;
	extern char *optarg;

	while ((c = getopt(argc, argv, "c:f:r:t:")) != -1)
		switch (c) {
		case 'c':		/* compression scheme */
			if (!processCompressOptions(optarg))
				usage();
			break;
		case 'f':		/* fill order */
			if (streq(optarg, "lsb2msb"))
				fillorder = FILLORDER_LSB2MSB;
			else if (streq(optarg, "msb2lsb"))
				fillorder = FILLORDER_MSB2LSB;
			else
				usage();
			break;
		case 'r':		/* rows/strip */
			rowsperstrip = atoi(optarg);
			break;
		case 't':
			threshold = atoi(optarg);
			if (threshold < 0)
				threshold = 0;
			else if (threshold > 255)
				threshold = 255;
			break;
		case '?':
			usage();
			/*NOTREACHED*/
		}
	if (argc - optind < 2)
		usage();
	in = TIFFOpen(argv[optind], "r");
	if (in == NULL)
		return (-1);
	TIFFGetField(in, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
	if (samplesperpixel != 1) {
		fprintf(stderr, "%s: Not a b&w image.\n", argv[0]);
		return (-1);
	}
	TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample);
	if (bitspersample != 8) {
		fprintf(stderr,
		    " %s: Sorry, only handle 8-bit samples.\n", argv[0]);
		return (-1);
	}
	out = TIFFOpen(argv[optind+1], "w");
	if (out == NULL)
		return (-1);
	CopyField(TIFFTAG_IMAGEWIDTH, imagewidth);
	TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength);
	TIFFSetField(out, TIFFTAG_IMAGELENGTH, imagelength-1);
	TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 1);
	TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1);
	TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
	TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
	if (fillorder)
		TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
	else
		CopyField(TIFFTAG_FILLORDER, shortv);
	sprintf(thing, "Dithered B&W version of %s", argv[optind]);
	TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing);
	CopyField(TIFFTAG_PHOTOMETRIC, shortv);
	CopyField(TIFFTAG_ORIENTATION, shortv);
	CopyField(TIFFTAG_XRESOLUTION, floatv);
	CopyField(TIFFTAG_YRESOLUTION, floatv);
	CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
        rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
	TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
	switch (compression) {
	case COMPRESSION_CCITTFAX3:
		TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, group3options);
		break;
	case COMPRESSION_LZW:
	case COMPRESSION_DEFLATE:
		if (predictor)
			TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
		break;
	}
	fsdither(in, out);
	TIFFClose(in);
	TIFFClose(out);
	return (0);
}

char* stuff[] = {
"usage: tiffdither [options] input.tif output.tif",
"where options are:",
" -r #		make each strip have no more than # rows",
" -f lsb2msb	force lsb-to-msb FillOrder for output",
" -f msb2lsb	force msb-to-lsb FillOrder for output",
" -c lzw[:opts]	compress output with Lempel-Ziv & Welch encoding",
" -c zip[:opts]	compress output with deflate encoding",
" -c packbits	compress output with packbits encoding",
" -c g3[:opts]	compress output with CCITT Group 3 encoding",
" -c g4		compress output with CCITT Group 4 encoding",
" -c none	use no compression algorithm on output",
"",
"Group 3 options:",
" 1d		use default CCITT Group 3 1D-encoding",
" 2d		use optional CCITT Group 3 2D-encoding",
" fill		byte-align EOL codes",
"For example, -c g3:2d:fill to get G3-2D-encoded data with byte-aligned EOLs",
"",
"LZW and deflate options:",
" #		set predictor value",
"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
NULL
};

static void
usage(void)
{
	char buf[BUFSIZ];
	int i;

	setbuf(stderr, buf);
        fprintf(stderr, "%s\n\n", TIFFGetVersion());
	for (i = 0; stuff[i] != NULL; i++)
		fprintf(stderr, "%s\n", stuff[i]);
	exit(-1);
}

/* vim: set ts=8 sts=8 sw=8 noet: */
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 8
 * fill-column: 78
 * End:
 */
Commit	Line	Data
8414a40c VZ	1
	2	/*
	3	* Copyright (c) 1988-1997 Sam Leffler
	4	* Copyright (c) 1991-1997 Silicon Graphics, Inc.
	5	*
	6	* Permission to use, copy, modify, distribute, and sell this software and
	7	* its documentation for any purpose is hereby granted without fee, provided
	8	* that (i) the above copyright notices and this permission notice appear in
	9	* all copies of the software and related documentation, and (ii) the names of
	10	* Sam Leffler and Silicon Graphics may not be used in any advertising or
	11	* publicity relating to the software without the specific, prior written
	12	* permission of Sam Leffler and Silicon Graphics.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	15	* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	16	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	17	*
	18	* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	19	* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	20	* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	21	* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	22	* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	23	* OF THIS SOFTWARE.
	24	*/
	25
	26	#include "tif_config.h"
	27
	28	#include <stdio.h>
	29	#include <stdlib.h>
	30	#include <string.h>
	31
	32	#ifdef HAVE_UNISTD_H
	33	# include <unistd.h>
	34	#endif
	35
80ed523f VZ	36	#ifdef NEED_LIBPORT
	37	# include "libport.h"
	38	#endif
	39
8414a40c VZ	40	#include "tiffio.h"
	41
	42	#define streq(a,b) (strcmp(a,b) == 0)
	43	#define strneq(a,b,n) (strncmp(a,b,n) == 0)
	44
	45	#define CopyField(tag, v) \
	46	if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
	47
	48	uint32 imagewidth;
	49	uint32 imagelength;
	50	int threshold = 128;
	51
	52	static void usage(void);
	53
	54	/*
	55	* Floyd-Steinberg error propragation with threshold.
	56	* This code is stolen from tiffmedian.
	57	*/
	58	static void
	59	fsdither(TIFF* in, TIFF* out)
	60	{
	61	unsigned char outline, inputline, *inptr;
	62	short thisline, nextline, *tmpptr;
	63	register unsigned char *outptr;
	64	register short thisptr, nextptr;
	65	register uint32 i, j;
	66	uint32 imax, jmax;
	67	int lastline, lastpixel;
	68	int bit;
	69	tsize_t outlinesize;
	70
	71	imax = imagelength - 1;
	72	jmax = imagewidth - 1;
	73	inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in));
	74	thisline = (short )_TIFFmalloc(imagewidth sizeof (short));
	75	nextline = (short )_TIFFmalloc(imagewidth sizeof (short));
	76	outlinesize = TIFFScanlineSize(out);
	77	outline = (unsigned char *) _TIFFmalloc(outlinesize);
	78
	79	/*
	80	* Get first line
	81	*/
	82	if (TIFFReadScanline(in, inputline, 0, 0) <= 0)
80ed523f VZ	83	goto skip_on_error;
80ed523f VZ	84
8414a40c VZ	85	inptr = inputline;
	86	nextptr = nextline;
	87	for (j = 0; j < imagewidth; ++j)
	88	nextptr++ = inptr++;
	89	for (i = 1; i < imagelength; ++i) {
	90	tmpptr = thisline;
	91	thisline = nextline;
	92	nextline = tmpptr;
	93	lastline = (i == imax);
	94	if (TIFFReadScanline(in, inputline, i, 0) <= 0)
	95	break;
	96	inptr = inputline;
	97	nextptr = nextline;
	98	for (j = 0; j < imagewidth; ++j)
	99	nextptr++ = inptr++;
	100	thisptr = thisline;
	101	nextptr = nextline;
	102	_TIFFmemset(outptr = outline, 0, outlinesize);
	103	bit = 0x80;
	104	for (j = 0; j < imagewidth; ++j) {
	105	register int v;
	106
	107	lastpixel = (j == jmax);
	108	v = *thisptr++;
	109	if (v < 0)
	110	v = 0;
	111	else if (v > 255)
	112	v = 255;
	113	if (v > threshold) {
	114	*outptr \|= bit;
	115	v -= 255;
	116	}
	117	bit >>= 1;
	118	if (bit == 0) {
	119	outptr++;
	120	bit = 0x80;
	121	}
	122	if (!lastpixel)
	123	thisptr[0] += v * 7 / 16;
	124	if (!lastline) {
	125	if (j != 0)
	126	nextptr[-1] += v * 3 / 16;
	127	nextptr++ += v 5 / 16;
	128	if (!lastpixel)
	129	nextptr[0] += v / 16;
	130	}
	131	}
	132	if (TIFFWriteScanline(out, outline, i-1, 0) < 0)
	133	break;
	134	}
80ed523f	135	skip_on_error:
8414a40c VZ	136	_TIFFfree(inputline);
	137	_TIFFfree(thisline);
	138	_TIFFfree(nextline);
	139	_TIFFfree(outline);
	140	}
	141
	142	static uint16 compression = COMPRESSION_PACKBITS;
	143	static uint16 predictor = 0;
	144	static uint32 group3options = 0;
	145
	146	static void
	147	processG3Options(char* cp)
	148	{
	149	if ((cp = strchr(cp, ':'))) {
	150	do {
	151	cp++;
	152	if (strneq(cp, "1d", 2))
	153	group3options &= ~GROUP3OPT_2DENCODING;
	154	else if (strneq(cp, "2d", 2))
	155	group3options \|= GROUP3OPT_2DENCODING;
	156	else if (strneq(cp, "fill", 4))
	157	group3options \|= GROUP3OPT_FILLBITS;
	158	else
	159	usage();
	160	} while ((cp = strchr(cp, ':')));
	161	}
	162	}
	163
	164	static int
	165	processCompressOptions(char* opt)
	166	{
	167	if (streq(opt, "none"))
	168	compression = COMPRESSION_NONE;
	169	else if (streq(opt, "packbits"))
	170	compression = COMPRESSION_PACKBITS;
	171	else if (strneq(opt, "g3", 2)) {
	172	processG3Options(opt);
	173	compression = COMPRESSION_CCITTFAX3;
	174	} else if (streq(opt, "g4"))
	175	compression = COMPRESSION_CCITTFAX4;
	176	else if (strneq(opt, "lzw", 3)) {
	177	char* cp = strchr(opt, ':');
	178	if (cp)
	179	predictor = atoi(cp+1);
	180	compression = COMPRESSION_LZW;
	181	} else if (strneq(opt, "zip", 3)) {
	182	char* cp = strchr(opt, ':');
	183	if (cp)
	184	predictor = atoi(cp+1);
	185	compression = COMPRESSION_DEFLATE;
	186	} else
	187	return (0);
	188	return (1);
	189	}
	190
	191	int
	192	main(int argc, char* argv[])
	193	{
	194	TIFF in, out;
	195	uint16 samplesperpixel, bitspersample = 1, shortv;
	196	float floatv;
	197	char thing[1024];
	198	uint32 rowsperstrip = (uint32) -1;
8414a40c VZ	199	uint16 fillorder = 0;
	200	int c;
	201	extern int optind;
	202	extern char *optarg;
	203
	204	while ((c = getopt(argc, argv, "c:f:r:t:")) != -1)
	205	switch (c) {
	206	case 'c': /* compression scheme */
	207	if (!processCompressOptions(optarg))
	208	usage();
	209	break;
	210	case 'f': /* fill order */
	211	if (streq(optarg, "lsb2msb"))
	212	fillorder = FILLORDER_LSB2MSB;
	213	else if (streq(optarg, "msb2lsb"))
	214	fillorder = FILLORDER_MSB2LSB;
	215	else
	216	usage();
	217	break;
	218	case 'r': /* rows/strip */
	219	rowsperstrip = atoi(optarg);
8414a40c VZ	220	break;
	221	case 't':
	222	threshold = atoi(optarg);
	223	if (threshold < 0)
	224	threshold = 0;
	225	else if (threshold > 255)
	226	threshold = 255;
	227	break;
	228	case '?':
	229	usage();
	230	/NOTREACHED/
	231	}
	232	if (argc - optind < 2)
	233	usage();
	234	in = TIFFOpen(argv[optind], "r");
	235	if (in == NULL)
	236	return (-1);
	237	TIFFGetField(in, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
	238	if (samplesperpixel != 1) {
	239	fprintf(stderr, "%s: Not a b&w image.\n", argv[0]);
	240	return (-1);
	241	}
	242	TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample);
	243	if (bitspersample != 8) {
	244	fprintf(stderr,
	245	" %s: Sorry, only handle 8-bit samples.\n", argv[0]);
	246	return (-1);
	247	}
	248	out = TIFFOpen(argv[optind+1], "w");
	249	if (out == NULL)
	250	return (-1);
	251	CopyField(TIFFTAG_IMAGEWIDTH, imagewidth);
	252	TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength);
	253	TIFFSetField(out, TIFFTAG_IMAGELENGTH, imagelength-1);
	254	TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 1);
	255	TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1);
	256	TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
	257	TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
	258	if (fillorder)
	259	TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
	260	else
	261	CopyField(TIFFTAG_FILLORDER, shortv);
	262	sprintf(thing, "Dithered B&W version of %s", argv[optind]);
	263	TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing);
	264	CopyField(TIFFTAG_PHOTOMETRIC, shortv);
	265	CopyField(TIFFTAG_ORIENTATION, shortv);
	266	CopyField(TIFFTAG_XRESOLUTION, floatv);
	267	CopyField(TIFFTAG_YRESOLUTION, floatv);
	268	CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
80ed523f	269	rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
8414a40c VZ	270	TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
	271	switch (compression) {
	272	case COMPRESSION_CCITTFAX3:
	273	TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, group3options);
	274	break;
	275	case COMPRESSION_LZW:
	276	case COMPRESSION_DEFLATE:
	277	if (predictor)
	278	TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
	279	break;
	280	}
	281	fsdither(in, out);
	282	TIFFClose(in);
	283	TIFFClose(out);
	284	return (0);
	285	}
	286
	287	char* stuff[] = {
	288	"usage: tiffdither [options] input.tif output.tif",
	289	"where options are:",
	290	" -r # make each strip have no more than # rows",
	291	" -f lsb2msb force lsb-to-msb FillOrder for output",
	292	" -f msb2lsb force msb-to-lsb FillOrder for output",
	293	" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
	294	" -c zip[:opts] compress output with deflate encoding",
	295	" -c packbits compress output with packbits encoding",
	296	" -c g3[:opts] compress output with CCITT Group 3 encoding",
	297	" -c g4 compress output with CCITT Group 4 encoding",
	298	" -c none use no compression algorithm on output",
	299	"",
	300	"Group 3 options:",
	301	" 1d use default CCITT Group 3 1D-encoding",
	302	" 2d use optional CCITT Group 3 2D-encoding",
	303	" fill byte-align EOL codes",
	304	"For example, -c g3:2d:fill to get G3-2D-encoded data with byte-aligned EOLs",
	305	"",
	306	"LZW and deflate options:",
	307	" # set predictor value",
	308	"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
	309	NULL
	310	};
	311
	312	static void
	313	usage(void)
	314	{
	315	char buf[BUFSIZ];
	316	int i;
	317
	318	setbuf(stderr, buf);
	319	fprintf(stderr, "%s\n\n", TIFFGetVersion());
	320	for (i = 0; stuff[i] != NULL; i++)
	321	fprintf(stderr, "%s\n", stuff[i]);
	322	exit(-1);
	323	}
	324
	325	/* vim: set ts=8 sts=8 sw=8 noet: */
80ed523f VZ	326	/*
	327	* Local Variables:
	328	* mode: c
	329	* c-basic-offset: 8
	330	* fill-column: 78
	331	* End:
	332	*/