src/px/normtiff.c

#ifndef lint
static const char       RCSid[] = "$Id: normtiff.c,v 3.6 2003/07/27 22:12:03 schorsch Exp $";
#endif
/*
 * Tone map SGILOG TIFF or Radiance picture and output 24-bit RGB TIFF
 */

#include <stdio.h>
#include <math.h>
#include <time.h>
#include <string.h>

#include "tiffio.h"
#include "color.h"
#include "tonemap.h"
#include "resolu.h"


TIFF    *tifout;                        /* TIFF output */
int     flags = TM_F_CAMERA;            /* tone-mapping flags */
RGBPRIMP        rgbp = stdprims;        /* display primaries */
RGBPRIMS        myprims;                /* overriding display primaries */
double  ldmax = 100.;                   /* maximum display luminance */
double  lddyn = 32.;                    /* display dynamic range */
double  gamv = 2.2;                     /* display gamma value */

short   ortab[8] = {            /* orientation conversion table */
        YMAJOR|YDECR,
        YMAJOR|YDECR|XDECR,
        YMAJOR|XDECR,
        YMAJOR,
        YDECR,
        XDECR|YDECR,
        XDECR,
        0
};

typedef struct {
        FILE    *fp;            /* file pointer */
        char    fmt[32];        /* picture format */
        double  pa;             /* pixel aspect ratio */
        RESOLU  rs;             /* picture resolution */
} PICTURE;

extern PICTURE  *openpicture();

#define closepicture(p)         (fclose((p)->fp),free((void *)(p)))

static gethfunc headline;


int
main(
        int     argc,
        char    *argv[]
)
{
        PICTURE *pin = NULL;
        TIFF    *tin = NULL;
        int     i, rval;

        for (i = 1; i < argc && argv[i][0] == '-'; i++)
                switch (argv[i][1]) {
                case 'h':                       /* human observer settings */
                        flags = TM_F_HUMAN;
                        break;
                case 's':                       /* toggle human contrast */
                        flags ^= TM_F_HCONTR;
                        break;
                case 'c':                       /* toggle mesopic sens. */
                        flags ^= TM_F_MESOPIC;
                        break;
                case 'l':                       /* toggle linear mapping */
                        flags ^= TM_F_LINEAR;
                        break;
                case 'b':                       /* toggle greyscale output */
                        flags ^= TM_F_BW;
                        break;
                case 'g':                       /* set display gamma */
                        if (argc-i < 2) goto userr;
                        gamv = atof(argv[++i]);
                        break;
                case 'u':                       /* set display maximum */
                        if (argc-i < 2) goto userr;
                        ldmax = atof(argv[++i]);
                        break;
                case 'd':                       /* set display dynamic range */
                        if (argc-i < 2) goto userr;
                        lddyn = atof(argv[++i]);
                        break;
                case 'p':                       /* set display primaries */
                        if (argc-i < 9) goto userr;
                        myprims[RED][CIEX] = atof(argv[++i]);
                        myprims[RED][CIEY] = atof(argv[++i]);
                        myprims[GRN][CIEX] = atof(argv[++i]);
                        myprims[GRN][CIEY] = atof(argv[++i]);
                        myprims[BLU][CIEX] = atof(argv[++i]);
                        myprims[BLU][CIEY] = atof(argv[++i]);
                        myprims[WHT][CIEX] = atof(argv[++i]);
                        myprims[WHT][CIEY] = atof(argv[++i]);
                        rgbp = myprims;
                        break;
                default:
                        goto userr;
                }
        if (argc-i < 2) goto userr;
        if ((pin = openpicture(argv[i])) == NULL &&
                        (tin = TIFFOpen(argv[i], "r")) == NULL) {
                fprintf(stderr, "%s: cannot open or interpret file \"%s\"\n",
                                argv[0], argv[i]);
                exit(1);
        }
        if ((tifout = TIFFOpen(argv[i+1], "w")) == NULL) {
                fprintf(stderr, "%s: cannot open output TIFF \"%s\"\n",
                                argv[0], argv[i+1]);
                exit(1);
        }
        if (pin != NULL) {
                rval = tmap_picture(argv[i], pin);
                closepicture(pin);
        } else {
                rval = tmap_tiff(argv[i], tin);
                TIFFClose(tin);
        }
        TIFFClose(tifout);
        exit(rval==0 ? 0 : 1);
userr:
        fprintf(stderr,
"Usage: %s [-h][-s][-c][-l][-b][-g gv][-d ld][-u lm][-p xr yr xg yg xb yb xw yw] input.{tif|pic} output.tif\n",
                        argv[0]);
        exit(1);
}


static int
headline(                               /* process line from header */
        char    *s,
        void *pp
)
{
        register char   *cp;

        for (cp = s; *cp; cp++)
                if (*cp & 0x80)
                        return(-1);     /* non-ascii in header */
        if (isaspect(s))
                ((PICTURE *)pp)->pa *= aspectval(s);
        else
                formatval(((PICTURE *)pp)->fmt, s);
        return(0);
}


PICTURE *
openpicture(fname)                      /* open/check Radiance picture file */
char    *fname;
{
        FILE    *fp;
        register PICTURE        *pp;
        register char   *cp;
                                        /* check filename suffix */
        if (fname == NULL) return(NULL);
        for (cp = fname; *cp; cp++)
                ;
        while (cp > fname && cp[-1] != '.')
                if (*--cp == '/') {
                        cp = fname;
                        break;
                }
        if (cp > fname && !strncmp(cp, "tif", 3))
                return(NULL);           /* assume it's a TIFF */
                                        /* else try opening it */
        if ((fp = fopen(fname, "r")) == NULL)
                return(NULL);
                                        /* allocate struct */
        if ((pp = (PICTURE *)malloc(sizeof(PICTURE))) == NULL)
                return(NULL);           /* serious error -- should exit? */
        pp->fp = fp; pp->fmt[0] = '\0'; pp->pa = 1.;
                                        /* load header */
        if (getheader(fp, headline, pp) < 0) {
                closepicture(pp);
                return(NULL);
        }
        if (!pp->fmt[0])                /* assume RGBE if unspecified */
                strcpy(pp->fmt, COLRFMT);
        if (!globmatch(PICFMT, pp->fmt) || !fgetsresolu(&pp->rs, fp)) {
                closepicture(pp);       /* failed test -- close file */
                return(NULL);
        }
        rewind(fp);                     /* passed test -- rewind file */
        return(pp);
}


int
tmap_picture(fname, pp)                 /* tone map Radiance picture */
char    *fname;
register PICTURE        *pp;
{
        uint16  orient;
        int     xsiz, ysiz;
        BYTE    *pix;
                                        /* read and tone map picture */
        if (tmMapPicture(&pix, &xsiz, &ysiz, flags,
                        rgbp, gamv, lddyn, ldmax, fname, pp->fp) != TM_E_OK)
                return(-1);
                                        /* figure out TIFF orientation */
        for (orient = 8; --orient; )
                if (ortab[orient] == pp->rs.rt)
                        break;
        orient++;
                                        /* put out our image */
        if (putimage(orient, (uint32)xsiz, (uint32)ysiz,
                        72., 72./pp->pa, 2, pix) != 0)
                return(-1);
                                        /* free data and we're done */
        free((void *)pix);
        return(0);
}


tmap_tiff(fname, tp)                    /* tone map SGILOG TIFF */
char    *fname;
TIFF    *tp;
{
        float   xres, yres;
        uint16  orient, resunit, phot;
        int     xsiz, ysiz;
        BYTE    *pix;
                                        /* check to make sure it's SGILOG */
        TIFFGetFieldDefaulted(tp, TIFFTAG_PHOTOMETRIC, &phot);
        if ((phot == PHOTOMETRIC_LOGL) | (phot == PHOTOMETRIC_MINISBLACK))
                flags |= TM_F_BW;
                                        /* read and tone map TIFF */
        if (tmMapTIFF(&pix, &xsiz, &ysiz, flags,
                        rgbp, gamv, lddyn, ldmax, fname, tp) != TM_E_OK)
                return(-1);
                                        /* get relevant tags */
        TIFFGetFieldDefaulted(tp, TIFFTAG_RESOLUTIONUNIT, &resunit);
        TIFFGetFieldDefaulted(tp, TIFFTAG_XRESOLUTION, &xres);
        TIFFGetFieldDefaulted(tp, TIFFTAG_YRESOLUTION, &yres);
        TIFFGetFieldDefaulted(tp, TIFFTAG_ORIENTATION, &orient);
                                        /* put out our image */
        if (putimage(orient, (uint32)xsiz, (uint32)ysiz,
                        xres, yres, resunit, pix) != 0)
                return(-1);
                                        /* free data and we're done */
        free((void *)pix);
        return(0);
}


putimage(or, xs, ys, xr, yr, ru, pd)    /* write out our image */
uint16  or;
uint32  xs, ys;
float   xr, yr;
uint16 ru;
BYTE    *pd;
{
        register int    y;
        uint32  rowsperstrip;

        TIFFSetField(tifout, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
        if (flags & TM_F_BW) {
                TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC,
                                PHOTOMETRIC_MINISBLACK);
                TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 1);
        } else {
                TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
                TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 3);
        }
        if (rgbp != stdprims) {
                TIFFSetField(tifout, TIFFTAG_PRIMARYCHROMATICITIES,
                                (float *)rgbp);
                TIFFSetField(tifout, TIFFTAG_WHITEPOINT, (float *)rgbp[WHT]);
        }
        TIFFSetField(tifout, TIFFTAG_BITSPERSAMPLE, 8);
        TIFFSetField(tifout, TIFFTAG_IMAGEWIDTH, xs);
        TIFFSetField(tifout, TIFFTAG_IMAGELENGTH, ys);
        TIFFSetField(tifout, TIFFTAG_RESOLUTIONUNIT, ru);
        TIFFSetField(tifout, TIFFTAG_XRESOLUTION, xr);
        TIFFSetField(tifout, TIFFTAG_YRESOLUTION, yr);
        TIFFSetField(tifout, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
        TIFFSetField(tifout, TIFFTAG_ORIENTATION, or);
                                        /* compute good strip size */
        rowsperstrip = 8192/TIFFScanlineSize(tifout);
        if (rowsperstrip < 1) rowsperstrip = 1;
        TIFFSetField(tifout, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
                                        /* write out scanlines */
        if (flags & TM_F_BW) {
                for (y = 0; y < ys; y++)
                        if (TIFFWriteScanline(tifout, pd + y*xs, y, 0) < 0)
                                goto writerr;
        } else {
                for (y = 0; y < ys; y++)
                        if (TIFFWriteScanline(tifout, pd + y*3*xs, y, 0) < 0)
                                goto writerr;
        }
        return(0);                      /* all done! */
writerr:
        fputs("Error writing TIFF output\n", stderr);
        return(-1);
}
Revision:	3.7
Committed:	Fri Jan 2 11:42:37 2004 UTC (20 years, 4 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 3.6:	+18 -11 lines
Log Message:	Fixed typing/prototype of getheader() and its callback.
#	User	Rev	Content
1	gwlarson	3.1	#ifndef lint
2	schorsch	3.7	static const char RCSid[] = "$Id: normtiff.c,v 3.6 2003/07/27 22:12:03 schorsch Exp $";
3	gwlarson	3.1	#endif
4			/*
5			* Tone map SGILOG TIFF or Radiance picture and output 24-bit RGB TIFF
6			*/
7
8			#include <stdio.h>
9			#include <math.h>
10	greg	3.4	#include <time.h>
11	schorsch	3.7	#include <string.h>
12
13	gwlarson	3.1	#include "tiffio.h"
14			#include "color.h"
15			#include "tonemap.h"
16			#include "resolu.h"
17
18
19			TIFF tifout; / TIFF output */
20			int flags = TM_F_CAMERA; /* tone-mapping flags */
21			RGBPRIMP rgbp = stdprims; /* display primaries */
22			RGBPRIMS myprims; /* overriding display primaries */
23			double ldmax = 100.; /* maximum display luminance */
24			double lddyn = 32.; /* display dynamic range */
25			double gamv = 2.2; /* display gamma value */
26
27			short ortab[8] = { /* orientation conversion table */
28			YMAJOR\|YDECR,
29			YMAJOR\|YDECR\|XDECR,
30			YMAJOR\|XDECR,
31			YMAJOR,
32			YDECR,
33			XDECR\|YDECR,
34			XDECR,
35			0
36			};
37
38	gwlarson	3.3	typedef struct {
39			FILE fp; / file pointer */
40			char fmt[32]; /* picture format */
41			double pa; /* pixel aspect ratio */
42			RESOLU rs; /* picture resolution */
43			} PICTURE;
44	gwlarson	3.1
45	gwlarson	3.3	extern PICTURE *openpicture();
46	gwlarson	3.1
47	greg	3.4	#define closepicture(p) (fclose((p)->fp),free((void *)(p)))
48	gwlarson	3.3
49	schorsch	3.7	static gethfunc headline;
50
51	gwlarson	3.3
52	schorsch	3.7	int
53			main(
54			int argc,
55			char *argv[]
56			)
57	gwlarson	3.1	{
58	gwlarson	3.3	PICTURE *pin = NULL;
59	gwlarson	3.1	TIFF *tin = NULL;
60	gwlarson	3.2	int i, rval;
61	gwlarson	3.1
62			for (i = 1; i < argc && argv[i][0] == '-'; i++)
63			switch (argv[i][1]) {
64			case 'h': /* human observer settings */
65			flags = TM_F_HUMAN;
66			break;
67			case 's': /* toggle human contrast */
68			flags ^= TM_F_HCONTR;
69			break;
70			case 'c': /* toggle mesopic sens. */
71			flags ^= TM_F_MESOPIC;
72			break;
73			case 'l': /* toggle linear mapping */
74			flags ^= TM_F_LINEAR;
75			break;
76			case 'b': /* toggle greyscale output */
77			flags ^= TM_F_BW;
78			break;
79			case 'g': /* set display gamma */
80			if (argc-i < 2) goto userr;
81			gamv = atof(argv[++i]);
82			break;
83			case 'u': /* set display maximum */
84			if (argc-i < 2) goto userr;
85			ldmax = atof(argv[++i]);
86			break;
87			case 'd': /* set display dynamic range */
88			if (argc-i < 2) goto userr;
89			lddyn = atof(argv[++i]);
90			break;
91			case 'p': /* set display primaries */
92			if (argc-i < 9) goto userr;
93			myprims[RED][CIEX] = atof(argv[++i]);
94			myprims[RED][CIEY] = atof(argv[++i]);
95			myprims[GRN][CIEX] = atof(argv[++i]);
96			myprims[GRN][CIEY] = atof(argv[++i]);
97			myprims[BLU][CIEX] = atof(argv[++i]);
98			myprims[BLU][CIEY] = atof(argv[++i]);
99			myprims[WHT][CIEX] = atof(argv[++i]);
100			myprims[WHT][CIEY] = atof(argv[++i]);
101			rgbp = myprims;
102			break;
103			default:
104			goto userr;
105			}
106			if (argc-i < 2) goto userr;
107	gwlarson	3.3	if ((pin = openpicture(argv[i])) == NULL &&
108	gwlarson	3.1	(tin = TIFFOpen(argv[i], "r")) == NULL) {
109			fprintf(stderr, "%s: cannot open or interpret file \"%s\"\n",
110			argv[0], argv[i]);
111			exit(1);
112			}
113			if ((tifout = TIFFOpen(argv[i+1], "w")) == NULL) {
114			fprintf(stderr, "%s: cannot open output TIFF \"%s\"\n",
115			argv[0], argv[i+1]);
116			exit(1);
117			}
118	gwlarson	3.3	if (pin != NULL) {
119			rval = tmap_picture(argv[i], pin);
120			closepicture(pin);
121	gwlarson	3.1	} else {
122	gwlarson	3.2	rval = tmap_tiff(argv[i], tin);
123	gwlarson	3.1	TIFFClose(tin);
124			}
125			TIFFClose(tifout);
126	gwlarson	3.2	exit(rval==0 ? 0 : 1);
127	gwlarson	3.1	userr:
128			fprintf(stderr,
129			"Usage: %s [-h][-s][-c][-l][-b][-g gv][-d ld][-u lm][-p xr yr xg yg xb yb xw yw] input.{tif\|pic} output.tif\n",
130			argv[0]);
131			exit(1);
132			}
133
134
135	schorsch	3.7	static int
136			headline( /* process line from header */
137			char *s,
138			void *pp
139			)
140	gwlarson	3.3	{
141			register char *cp;
142
143			for (cp = s; *cp; cp++)
144			if (*cp & 0x80)
145			return(-1); /* non-ascii in header */
146			if (isaspect(s))
147	schorsch	3.7	((PICTURE )pp)->pa = aspectval(s);
148	gwlarson	3.3	else
149	schorsch	3.7	formatval(((PICTURE *)pp)->fmt, s);
150	gwlarson	3.3	return(0);
151			}
152
153
154			PICTURE *
155	gwlarson	3.1	openpicture(fname) /* open/check Radiance picture file */
156			char *fname;
157			{
158			FILE *fp;
159	gwlarson	3.3	register PICTURE *pp;
160	gwlarson	3.1	register char *cp;
161			/* check filename suffix */
162			if (fname == NULL) return(NULL);
163			for (cp = fname; *cp; cp++)
164			;
165			while (cp > fname && cp[-1] != '.')
166			if (*--cp == '/') {
167			cp = fname;
168			break;
169			}
170			if (cp > fname && !strncmp(cp, "tif", 3))
171			return(NULL); /* assume it's a TIFF */
172			/* else try opening it */
173			if ((fp = fopen(fname, "r")) == NULL)
174			return(NULL);
175	gwlarson	3.3	/* allocate struct */
176			if ((pp = (PICTURE *)malloc(sizeof(PICTURE))) == NULL)
177			return(NULL); /* serious error -- should exit? */
178			pp->fp = fp; pp->fmt[0] = '\0'; pp->pa = 1.;
179			/* load header */
180	schorsch	3.7	if (getheader(fp, headline, pp) < 0) {
181	gwlarson	3.3	closepicture(pp);
182	gwlarson	3.1	return(NULL);
183			}
184	gwlarson	3.3	if (!pp->fmt[0]) /* assume RGBE if unspecified */
185			strcpy(pp->fmt, COLRFMT);
186			if (!globmatch(PICFMT, pp->fmt) \|\| !fgetsresolu(&pp->rs, fp)) {
187			closepicture(pp); /* failed test -- close file */
188			return(NULL);
189			}
190	gwlarson	3.1	rewind(fp); /* passed test -- rewind file */
191	gwlarson	3.3	return(pp);
192	gwlarson	3.1	}
193
194
195	gwlarson	3.2	int
196	gwlarson	3.3	tmap_picture(fname, pp) /* tone map Radiance picture */
197	gwlarson	3.1	char *fname;
198	gwlarson	3.3	register PICTURE *pp;
199	gwlarson	3.1	{
200			uint16 orient;
201			int xsiz, ysiz;
202			BYTE *pix;
203			/* read and tone map picture */
204			if (tmMapPicture(&pix, &xsiz, &ysiz, flags,
205	gwlarson	3.3	rgbp, gamv, lddyn, ldmax, fname, pp->fp) != TM_E_OK)
206	gwlarson	3.2	return(-1);
207	gwlarson	3.3	/* figure out TIFF orientation */
208			for (orient = 8; --orient; )
209	greg	3.4	if (ortab[orient] == pp->rs.rt)
210	gwlarson	3.3	break;
211	gwlarson	3.1	orient++;
212			/* put out our image */
213	gwlarson	3.2	if (putimage(orient, (uint32)xsiz, (uint32)ysiz,
214	gwlarson	3.3	72., 72./pp->pa, 2, pix) != 0)
215	gwlarson	3.2	return(-1);
216	gwlarson	3.1	/* free data and we're done */
217	greg	3.4	free((void *)pix);
218	gwlarson	3.2	return(0);
219	gwlarson	3.1	}
220
221
222			tmap_tiff(fname, tp) /* tone map SGILOG TIFF */
223			char *fname;
224			TIFF *tp;
225			{
226			float xres, yres;
227			uint16 orient, resunit, phot;
228			int xsiz, ysiz;
229			BYTE *pix;
230			/* check to make sure it's SGILOG */
231			TIFFGetFieldDefaulted(tp, TIFFTAG_PHOTOMETRIC, &phot);
232	schorsch	3.6	if ((phot == PHOTOMETRIC_LOGL) \| (phot == PHOTOMETRIC_MINISBLACK))
233	gwlarson	3.1	flags \|= TM_F_BW;
234			/* read and tone map TIFF */
235			if (tmMapTIFF(&pix, &xsiz, &ysiz, flags,
236			rgbp, gamv, lddyn, ldmax, fname, tp) != TM_E_OK)
237	gwlarson	3.2	return(-1);
238	gwlarson	3.1	/* get relevant tags */
239			TIFFGetFieldDefaulted(tp, TIFFTAG_RESOLUTIONUNIT, &resunit);
240			TIFFGetFieldDefaulted(tp, TIFFTAG_XRESOLUTION, &xres);
241			TIFFGetFieldDefaulted(tp, TIFFTAG_YRESOLUTION, &yres);
242			TIFFGetFieldDefaulted(tp, TIFFTAG_ORIENTATION, &orient);
243			/* put out our image */
244	gwlarson	3.2	if (putimage(orient, (uint32)xsiz, (uint32)ysiz,
245			xres, yres, resunit, pix) != 0)
246			return(-1);
247	gwlarson	3.1	/* free data and we're done */
248	greg	3.4	free((void *)pix);
249	gwlarson	3.2	return(0);
250	gwlarson	3.1	}
251
252
253			putimage(or, xs, ys, xr, yr, ru, pd) /* write out our image */
254			uint16 or;
255			uint32 xs, ys;
256			float xr, yr;
257			uint16 ru;
258			BYTE *pd;
259			{
260			register int y;
261			uint32 rowsperstrip;
262
263			TIFFSetField(tifout, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
264			if (flags & TM_F_BW) {
265			TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC,
266			PHOTOMETRIC_MINISBLACK);
267			TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 1);
268			} else {
269			TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
270			TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 3);
271			}
272			if (rgbp != stdprims) {
273			TIFFSetField(tifout, TIFFTAG_PRIMARYCHROMATICITIES,
274			(float *)rgbp);
275			TIFFSetField(tifout, TIFFTAG_WHITEPOINT, (float *)rgbp[WHT]);
276			}
277			TIFFSetField(tifout, TIFFTAG_BITSPERSAMPLE, 8);
278			TIFFSetField(tifout, TIFFTAG_IMAGEWIDTH, xs);
279			TIFFSetField(tifout, TIFFTAG_IMAGELENGTH, ys);
280			TIFFSetField(tifout, TIFFTAG_RESOLUTIONUNIT, ru);
281			TIFFSetField(tifout, TIFFTAG_XRESOLUTION, xr);
282			TIFFSetField(tifout, TIFFTAG_YRESOLUTION, yr);
283			TIFFSetField(tifout, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
284			TIFFSetField(tifout, TIFFTAG_ORIENTATION, or);
285			/* compute good strip size */
286			rowsperstrip = 8192/TIFFScanlineSize(tifout);
287			if (rowsperstrip < 1) rowsperstrip = 1;
288			TIFFSetField(tifout, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
289			/* write out scanlines */
290			if (flags & TM_F_BW) {
291			for (y = 0; y < ys; y++)
292			if (TIFFWriteScanline(tifout, pd + y*xs, y, 0) < 0)
293			goto writerr;
294			} else {
295			for (y = 0; y < ys; y++)
296			if (TIFFWriteScanline(tifout, pd + y3xs, y, 0) < 0)
297			goto writerr;
298			}
299	gwlarson	3.2	return(0); /* all done! */
300	gwlarson	3.1	writerr:
301			fputs("Error writing TIFF output\n", stderr);
302	gwlarson	3.2	return(-1);
303	gwlarson	3.1	}