src/px/normtiff.c

#ifndef lint
static const char       RCSid[] = "$Id: normtiff.c,v 3.9 2005/06/14 22:23:31 greg 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 "tmaptiff.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;

uint16  comp = COMPRESSION_NONE;        /* TIFF compression mode */

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

static gethfunc headline;

static int headline(char *s, void *pp);
static PICTURE *openpicture(char *fname);
static int tmap_picture(char *fname, PICTURE *pp);
static int tmap_tiff(char *fname, TIFF *tp);
static int putimage(uint16 or, uint32 xs, uint32 ys, float xr, float yr,
        uint16 ru, BYTE *pd);


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 'z':                       /* LZW compression */
                        comp = COMPRESSION_LZW;
                        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][-z][-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);
}


static PICTURE *
openpicture(                    /* 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);
}


static int
tmap_picture(                   /* tone map Radiance picture */
        char    *fname,
        register PICTURE        *pp
)
{
        uint16  orient;
        double  paspect = (pp->rs.rt & YMAJOR) ? pp->pa : 1./pp->pa;
        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./paspect, 2, pix) != 0)
                return(-1);
                                        /* free data and we're done */
        free((void *)pix);
        return(0);
}


static int
tmap_tiff(                      /* 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);
}


static int
putimage(       /* write out our image */
        uint16  or,
        uint32  xs,
        uint32  ys,
        float   xr,
        float   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_COMPRESSION, comp);
        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:	3.10
Committed:	Tue Sep 26 12:26:02 2006 UTC (17 years, 7 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R8, rad3R9
Changes since 3.9:	+3 -2 lines
Log Message:	Fixed bug in pixel aspect ratio for some image orientations
#	User	Rev	Content
1	gwlarson	3.1	#ifndef lint
2	greg	3.10	static const char RCSid[] = "$Id: normtiff.c,v 3.9 2005/06/14 22:23:31 greg 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	schorsch	3.8	#include "tmaptiff.h"
17	gwlarson	3.1	#include "resolu.h"
18
19
20			TIFF tifout; / TIFF output */
21			int flags = TM_F_CAMERA; /* tone-mapping flags */
22			RGBPRIMP rgbp = stdprims; /* display primaries */
23			RGBPRIMS myprims; /* overriding display primaries */
24			double ldmax = 100.; /* maximum display luminance */
25			double lddyn = 32.; /* display dynamic range */
26			double gamv = 2.2; /* display gamma value */
27
28			short ortab[8] = { /* orientation conversion table */
29			YMAJOR\|YDECR,
30			YMAJOR\|YDECR\|XDECR,
31			YMAJOR\|XDECR,
32			YMAJOR,
33			YDECR,
34			XDECR\|YDECR,
35			XDECR,
36			0
37			};
38
39	gwlarson	3.3	typedef struct {
40			FILE fp; / file pointer */
41			char fmt[32]; /* picture format */
42			double pa; /* pixel aspect ratio */
43			RESOLU rs; /* picture resolution */
44			} PICTURE;
45	gwlarson	3.1
46	greg	3.9	uint16 comp = COMPRESSION_NONE; /* TIFF compression mode */
47	gwlarson	3.1
48	greg	3.4	#define closepicture(p) (fclose((p)->fp),free((void *)(p)))
49	gwlarson	3.3
50	schorsch	3.7	static gethfunc headline;
51
52	greg	3.9	static int headline(char s, void pp);
53			static PICTURE openpicture(char fname);
54			static int tmap_picture(char fname, PICTURE pp);
55			static int tmap_tiff(char fname, TIFF tp);
56			static int putimage(uint16 or, uint32 xs, uint32 ys, float xr, float yr,
57	schorsch	3.8	uint16 ru, BYTE *pd);
58
59	gwlarson	3.3
60	schorsch	3.7	int
61			main(
62			int argc,
63			char *argv[]
64			)
65	gwlarson	3.1	{
66	gwlarson	3.3	PICTURE *pin = NULL;
67	gwlarson	3.1	TIFF *tin = NULL;
68	gwlarson	3.2	int i, rval;
69	gwlarson	3.1
70			for (i = 1; i < argc && argv[i][0] == '-'; i++)
71			switch (argv[i][1]) {
72			case 'h': /* human observer settings */
73			flags = TM_F_HUMAN;
74			break;
75			case 's': /* toggle human contrast */
76			flags ^= TM_F_HCONTR;
77			break;
78			case 'c': /* toggle mesopic sens. */
79			flags ^= TM_F_MESOPIC;
80			break;
81			case 'l': /* toggle linear mapping */
82			flags ^= TM_F_LINEAR;
83			break;
84			case 'b': /* toggle greyscale output */
85			flags ^= TM_F_BW;
86			break;
87			case 'g': /* set display gamma */
88			if (argc-i < 2) goto userr;
89			gamv = atof(argv[++i]);
90			break;
91			case 'u': /* set display maximum */
92			if (argc-i < 2) goto userr;
93			ldmax = atof(argv[++i]);
94			break;
95			case 'd': /* set display dynamic range */
96			if (argc-i < 2) goto userr;
97			lddyn = atof(argv[++i]);
98			break;
99	greg	3.9	case 'z': /* LZW compression */
100			comp = COMPRESSION_LZW;
101			break;
102	gwlarson	3.1	case 'p': /* set display primaries */
103			if (argc-i < 9) goto userr;
104			myprims[RED][CIEX] = atof(argv[++i]);
105			myprims[RED][CIEY] = atof(argv[++i]);
106			myprims[GRN][CIEX] = atof(argv[++i]);
107			myprims[GRN][CIEY] = atof(argv[++i]);
108			myprims[BLU][CIEX] = atof(argv[++i]);
109			myprims[BLU][CIEY] = atof(argv[++i]);
110			myprims[WHT][CIEX] = atof(argv[++i]);
111			myprims[WHT][CIEY] = atof(argv[++i]);
112			rgbp = myprims;
113			break;
114			default:
115			goto userr;
116			}
117			if (argc-i < 2) goto userr;
118	gwlarson	3.3	if ((pin = openpicture(argv[i])) == NULL &&
119	gwlarson	3.1	(tin = TIFFOpen(argv[i], "r")) == NULL) {
120			fprintf(stderr, "%s: cannot open or interpret file \"%s\"\n",
121			argv[0], argv[i]);
122			exit(1);
123			}
124			if ((tifout = TIFFOpen(argv[i+1], "w")) == NULL) {
125			fprintf(stderr, "%s: cannot open output TIFF \"%s\"\n",
126			argv[0], argv[i+1]);
127			exit(1);
128			}
129	gwlarson	3.3	if (pin != NULL) {
130			rval = tmap_picture(argv[i], pin);
131			closepicture(pin);
132	gwlarson	3.1	} else {
133	gwlarson	3.2	rval = tmap_tiff(argv[i], tin);
134	gwlarson	3.1	TIFFClose(tin);
135			}
136			TIFFClose(tifout);
137	gwlarson	3.2	exit(rval==0 ? 0 : 1);
138	gwlarson	3.1	userr:
139			fprintf(stderr,
140	greg	3.9	"Usage: %s [-h][-s][-c][-l][-b][-g gv][-d ld][-u lm][-z][-p xr yr xg yg xb yb xw yw] input.{tif\|pic} output.tif\n",
141	gwlarson	3.1	argv[0]);
142			exit(1);
143			}
144
145
146	schorsch	3.7	static int
147			headline( /* process line from header */
148			char *s,
149			void *pp
150			)
151	gwlarson	3.3	{
152			register char *cp;
153
154			for (cp = s; *cp; cp++)
155			if (*cp & 0x80)
156			return(-1); /* non-ascii in header */
157			if (isaspect(s))
158	schorsch	3.7	((PICTURE )pp)->pa = aspectval(s);
159	gwlarson	3.3	else
160	schorsch	3.7	formatval(((PICTURE *)pp)->fmt, s);
161	gwlarson	3.3	return(0);
162			}
163
164
165	schorsch	3.8	static PICTURE *
166			openpicture( /* open/check Radiance picture file */
167			char *fname
168			)
169	gwlarson	3.1	{
170			FILE *fp;
171	gwlarson	3.3	register PICTURE *pp;
172	gwlarson	3.1	register char *cp;
173			/* check filename suffix */
174			if (fname == NULL) return(NULL);
175			for (cp = fname; *cp; cp++)
176			;
177			while (cp > fname && cp[-1] != '.')
178			if (*--cp == '/') {
179			cp = fname;
180			break;
181			}
182			if (cp > fname && !strncmp(cp, "tif", 3))
183			return(NULL); /* assume it's a TIFF */
184			/* else try opening it */
185			if ((fp = fopen(fname, "r")) == NULL)
186			return(NULL);
187	gwlarson	3.3	/* allocate struct */
188			if ((pp = (PICTURE *)malloc(sizeof(PICTURE))) == NULL)
189			return(NULL); /* serious error -- should exit? */
190			pp->fp = fp; pp->fmt[0] = '\0'; pp->pa = 1.;
191			/* load header */
192	schorsch	3.7	if (getheader(fp, headline, pp) < 0) {
193	gwlarson	3.3	closepicture(pp);
194	gwlarson	3.1	return(NULL);
195			}
196	gwlarson	3.3	if (!pp->fmt[0]) /* assume RGBE if unspecified */
197			strcpy(pp->fmt, COLRFMT);
198			if (!globmatch(PICFMT, pp->fmt) \|\| !fgetsresolu(&pp->rs, fp)) {
199			closepicture(pp); /* failed test -- close file */
200			return(NULL);
201			}
202	gwlarson	3.1	rewind(fp); /* passed test -- rewind file */
203	gwlarson	3.3	return(pp);
204	gwlarson	3.1	}
205
206
207	schorsch	3.8	static int
208			tmap_picture( /* tone map Radiance picture */
209			char *fname,
210			register PICTURE *pp
211			)
212	gwlarson	3.1	{
213			uint16 orient;
214	greg	3.10	double paspect = (pp->rs.rt & YMAJOR) ? pp->pa : 1./pp->pa;
215	gwlarson	3.1	int xsiz, ysiz;
216			BYTE *pix;
217			/* read and tone map picture */
218			if (tmMapPicture(&pix, &xsiz, &ysiz, flags,
219	gwlarson	3.3	rgbp, gamv, lddyn, ldmax, fname, pp->fp) != TM_E_OK)
220	gwlarson	3.2	return(-1);
221	gwlarson	3.3	/* figure out TIFF orientation */
222			for (orient = 8; --orient; )
223	greg	3.4	if (ortab[orient] == pp->rs.rt)
224	gwlarson	3.3	break;
225	gwlarson	3.1	orient++;
226			/* put out our image */
227	gwlarson	3.2	if (putimage(orient, (uint32)xsiz, (uint32)ysiz,
228	greg	3.10	72., 72./paspect, 2, pix) != 0)
229	gwlarson	3.2	return(-1);
230	gwlarson	3.1	/* free data and we're done */
231	greg	3.4	free((void *)pix);
232	gwlarson	3.2	return(0);
233	gwlarson	3.1	}
234
235
236	schorsch	3.8	static int
237			tmap_tiff( /* tone map SGILOG TIFF */
238			char *fname,
239			TIFF *tp
240			)
241	gwlarson	3.1	{
242			float xres, yres;
243			uint16 orient, resunit, phot;
244			int xsiz, ysiz;
245			BYTE *pix;
246			/* check to make sure it's SGILOG */
247			TIFFGetFieldDefaulted(tp, TIFFTAG_PHOTOMETRIC, &phot);
248	schorsch	3.6	if ((phot == PHOTOMETRIC_LOGL) \| (phot == PHOTOMETRIC_MINISBLACK))
249	gwlarson	3.1	flags \|= TM_F_BW;
250			/* read and tone map TIFF */
251			if (tmMapTIFF(&pix, &xsiz, &ysiz, flags,
252			rgbp, gamv, lddyn, ldmax, fname, tp) != TM_E_OK)
253	gwlarson	3.2	return(-1);
254	gwlarson	3.1	/* get relevant tags */
255			TIFFGetFieldDefaulted(tp, TIFFTAG_RESOLUTIONUNIT, &resunit);
256			TIFFGetFieldDefaulted(tp, TIFFTAG_XRESOLUTION, &xres);
257			TIFFGetFieldDefaulted(tp, TIFFTAG_YRESOLUTION, &yres);
258			TIFFGetFieldDefaulted(tp, TIFFTAG_ORIENTATION, &orient);
259			/* put out our image */
260	gwlarson	3.2	if (putimage(orient, (uint32)xsiz, (uint32)ysiz,
261			xres, yres, resunit, pix) != 0)
262			return(-1);
263	gwlarson	3.1	/* free data and we're done */
264	greg	3.4	free((void *)pix);
265	gwlarson	3.2	return(0);
266	gwlarson	3.1	}
267
268
269	schorsch	3.8	static int
270			putimage( /* write out our image */
271			uint16 or,
272			uint32 xs,
273			uint32 ys,
274			float xr,
275			float yr,
276	greg	3.9	uint16 ru,
277	schorsch	3.8	BYTE *pd
278			)
279	gwlarson	3.1	{
280			register int y;
281			uint32 rowsperstrip;
282
283			TIFFSetField(tifout, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
284			if (flags & TM_F_BW) {
285			TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC,
286			PHOTOMETRIC_MINISBLACK);
287			TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 1);
288			} else {
289			TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
290			TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 3);
291			}
292			if (rgbp != stdprims) {
293			TIFFSetField(tifout, TIFFTAG_PRIMARYCHROMATICITIES,
294			(float *)rgbp);
295			TIFFSetField(tifout, TIFFTAG_WHITEPOINT, (float *)rgbp[WHT]);
296			}
297			TIFFSetField(tifout, TIFFTAG_BITSPERSAMPLE, 8);
298			TIFFSetField(tifout, TIFFTAG_IMAGEWIDTH, xs);
299			TIFFSetField(tifout, TIFFTAG_IMAGELENGTH, ys);
300			TIFFSetField(tifout, TIFFTAG_RESOLUTIONUNIT, ru);
301	greg	3.9	TIFFSetField(tifout, TIFFTAG_COMPRESSION, comp);
302	gwlarson	3.1	TIFFSetField(tifout, TIFFTAG_XRESOLUTION, xr);
303			TIFFSetField(tifout, TIFFTAG_YRESOLUTION, yr);
304			TIFFSetField(tifout, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
305			TIFFSetField(tifout, TIFFTAG_ORIENTATION, or);
306			/* compute good strip size */
307			rowsperstrip = 8192/TIFFScanlineSize(tifout);
308			if (rowsperstrip < 1) rowsperstrip = 1;
309			TIFFSetField(tifout, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
310			/* write out scanlines */
311			if (flags & TM_F_BW) {
312			for (y = 0; y < ys; y++)
313			if (TIFFWriteScanline(tifout, pd + y*xs, y, 0) < 0)
314			goto writerr;
315			} else {
316			for (y = 0; y < ys; y++)
317			if (TIFFWriteScanline(tifout, pd + y3xs, y, 0) < 0)
318			goto writerr;
319			}
320	gwlarson	3.2	return(0); /* all done! */
321	gwlarson	3.1	writerr:
322			fputs("Error writing TIFF output\n", stderr);
323	gwlarson	3.2	return(-1);
324	gwlarson	3.1	}