src/px/ra_tiff.c

/* Copyright (c) 1991 Regents of the University of California */

#ifndef lint
static char SCCSid[] = "$SunId$ LBL";
#endif

/*
 *  program to convert between RADIANCE and 24-bit TIFF files.
 */

#include  <stdio.h>

#include  "tiffio.h"

#include  "color.h"

#include  "resolu.h"


extern char  *malloc(), *realloc();

int  lzcomp = 0;                        /* use Lempel-Ziv compression? */

int  greyscale = 0;                     /* produce greyscale image? */

double  gamma = 2.2;                    /* gamma correction */

int  bradj = 0;                         /* brightness adjustment */

char  *progname;


main(argc, argv)
int  argc;
char  *argv[];
{
        int  reverse = 0;
        int  i;
        
        progname = argv[0];

        for (i = 1; i < argc; i++)
                if (argv[i][0] == '-')
                        switch (argv[i][1]) {
                        case 'g':
                                gamma = atof(argv[++i]);
                                break;
                        case 'z':
                                lzcomp = !lzcomp;
                                break;
                        case 'b':
                                greyscale = !greyscale;
                                break;
                        case 'e':
                                if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
                                        goto userr;
                                bradj = atoi(argv[++i]);
                                break;
                        case 'r':
                                reverse = !reverse;
                                break;
                        case '\0':
                                goto doneopts;
                        default:
                                goto userr;
                        }
                else
                        break;
doneopts:
        setcolrgam(gamma);

        if (reverse)
                if (i != argc-2 && i != argc-1)
                        goto userr;
                else
                        tiff2ra(argv[i], argv[i+1]);
        else
                if (i != argc-2)
                        goto userr;
                else
                        ra2tiff(argv[i], argv[i+1]);

        exit(0);
userr:
        fprintf(stderr,
        "Usage: %s [-r][-b][-z][-e +/-stops][-g gamma] input output\n",
                        progname);
        exit(1);
}


quiterr(err)            /* print message and exit */
char  *err;
{
        if (err != NULL) {
                fprintf(stderr, "%s: %s\n", progname, err);
                exit(1);
        }
        exit(0);
}


tiff2ra(inpf, outf)     /* convert TIFF file to Radiance picture */
char    *inpf, *outf;
{
        unsigned long   xmax, ymax;
        TIFF    *tif;
        unsigned short  pconfig, nsamps;
        unsigned short  hi;
        register BYTE   *scanin;
        register COLR   *scanout;
        register int    x;
        int     y;
                                        /* open/check  TIFF file */
        if ((tif = TIFFOpen(inpf, "r")) == NULL)
                quiterr("cannot open TIFF input");
        if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &nsamps) ||
                        (nsamps != 1 && nsamps != 3))
                quiterr("unsupported samples per pixel");
        if (!TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &hi) || hi != 8)
                quiterr("unsupported bits per sample");
        if (TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &hi) &&
                        hi != (nsamps==1 ? 1 : 2))
                quiterr("unsupported photometric interpretation");
        if (!TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &pconfig) ||
                        (pconfig != 1 && pconfig != 2))
                quiterr("unsupported planar configuration");
        if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &xmax) ||
                        !TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &ymax))
                quiterr("unknown input image resolution");
                                                /* allocate scanlines */
        scanin = (BYTE *)malloc(TIFFScanlineSize(tif));
        scanout = (COLR *)malloc(xmax*sizeof(COLR));
        if (scanin == NULL || scanout == NULL)
                quiterr("out of memory in tiff2ra");
                                        /* open output and write header */
        if (outf != NULL && strcmp(outf, "-") &&
                        freopen(outf, "w", stdout) == NULL)
                quiterr("cannot open Radiance output file");
        fputs(progname, stdout);
        if (bradj)
                printf(" -e %+d", bradj);
        fputs(" -r\n", stdout);
        fputformat(COLRFMT, stdout);
        putchar('\n');
        fprtresolu(xmax, ymax, stdout);
                                                /* convert image */
        if (nsamps == 1)
                pconfig = 1;
        for (y = 0; y < ymax; y++) {
                if (pconfig == 1) {
                        if (TIFFReadScanline(tif, scanin, y, 0) < 0)
                                goto readerr;
                        if (nsamps == 1)
                                for (x = 0; x < xmax; x++)
                                        scanout[x][RED] =
                                        scanout[x][GRN] =
                                        scanout[x][BLU] = scanin[x];
                        else
                                for (x = 0; x < xmax; x++) {
                                        scanout[x][RED] = scanin[3*x];
                                        scanout[x][GRN] = scanin[3*x+1];
                                        scanout[x][BLU] = scanin[3*x+2];
                                }
                } else {
                        if (TIFFReadScanline(tif, scanin, y, 0) < 0)
                                goto readerr;
                        for (x = 0; x < xmax; x++)
                                scanout[x][RED] = scanin[x];
                        if (TIFFReadScanline(tif, scanin, y, 1) < 0)
                                goto readerr;
                        for (x = 0; x < xmax; x++)
                                scanout[x][GRN] = scanin[x];
                        if (TIFFReadScanline(tif, scanin, y, 2) < 0)
                                goto readerr;
                        for (x = 0; x < xmax; x++)
                                scanout[x][BLU] = scanin[x];
                }
                gambs_colrs(scanout, xmax);
                if (bradj)
                        shiftcolrs(scanout, xmax, bradj);
                if (fwritecolrs(scanout, xmax, stdout) < 0)
                        quiterr("error writing Radiance picture");
        }
                                                /* clean up */
        free((char *)scanin);
        free((char *)scanout);
        TIFFClose(tif);
        return;
readerr:
        quiterr("error reading TIFF input");
}


ra2tiff(inpf, outf)             /* convert Radiance file to 24-bit TIFF */
char    *inpf, *outf;
{
        TIFF    *tif;
        int     xmax, ymax;
        BYTE    *scanout;
        COLR    *scanin;
        register int    x;
        int     y;
                                                /* open Radiance file */
        if (strcmp(inpf, "-") && freopen(inpf, "r", stdin) == NULL)
                quiterr("cannot open Radiance input file");
        if (checkheader(stdin, COLRFMT, NULL) < 0 ||
                        fgetresolu(&xmax, &ymax, stdin) < 0)
                quiterr("bad Radiance picture");
                                                /* open TIFF file */
        if ((tif = TIFFOpen(outf, "w")) == NULL)
                quiterr("cannot open TIFF output");
        TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (unsigned long)xmax);
        TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (unsigned long)ymax);
        TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, greyscale ? 1 : 3);
        TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
        TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, greyscale ? 1 : 2);
        TIFFSetField(tif, TIFFTAG_PLANARCONFIG, 1);
        if (lzcomp)
                TIFFSetField(tif, TIFFTAG_COMPRESSION, (unsigned short)5);
                                                /* allocate scanlines */
        scanin = (COLR *)malloc(xmax*sizeof(COLR));
        scanout = (BYTE *)malloc(TIFFScanlineSize(tif));
        if (scanin == NULL || scanout == NULL)
                quiterr("out of memory in ra2tiff");
                                                /* convert image */
        for (y = 0; y < ymax; y++) {
                if (freadcolrs(scanin, xmax, stdin) < 0)
                        quiterr("error reading Radiance picture");
                if (bradj)
                        shiftcolrs(scanin, xmax, bradj);
                if (greyscale) {
                        for (x = 0; x < xmax; x++)
                                scanin[x][GRN] = normbright(scanin[x]);
                        colrs_gambs(scanin, xmax);
                        for (x = 0; x < xmax; x++)
                                scanout[x] = scanin[x][GRN];
                } else {
                        colrs_gambs(scanin, xmax);
                        for (x = 0; x < xmax; x++) {
                                scanout[3*x] = scanin[x][RED];
                                scanout[3*x+1] = scanin[x][GRN];
                                scanout[3*x+2] = scanin[x][BLU];
                        }
                }
                if (TIFFWriteScanline(tif, scanout, y, 0) < 0)
                        quiterr("error writing TIFF output");
        }
                                                /* clean up */
        free((char *)scanin);
        free((char *)scanout);
        TIFFClose(tif);
}
Revision:	2.2
Committed:	Thu Dec 19 14:52:25 1991 UTC (32 years, 4 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.1:	+0 -1 lines
Log Message:	eliminated atof declarations for NeXT
#	User	Rev	Content
1	greg	1.1	/* Copyright (c) 1991 Regents of the University of California */
2
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6
7			/*
8			* program to convert between RADIANCE and 24-bit TIFF files.
9			*/
10
11			#include <stdio.h>
12
13			#include "tiffio.h"
14
15			#include "color.h"
16
17	greg	1.6	#include "resolu.h"
18
19	greg	1.1
20			extern char malloc(), realloc();
21
22	greg	1.4	int lzcomp = 0; /* use Lempel-Ziv compression? */
23
24	greg	1.5	int greyscale = 0; /* produce greyscale image? */
25
26	greg	1.1	double gamma = 2.2; /* gamma correction */
27
28			int bradj = 0; /* brightness adjustment */
29
30			char *progname;
31
32
33			main(argc, argv)
34			int argc;
35			char *argv[];
36			{
37			int reverse = 0;
38			int i;
39
40			progname = argv[0];
41
42			for (i = 1; i < argc; i++)
43			if (argv[i][0] == '-')
44			switch (argv[i][1]) {
45			case 'g':
46			gamma = atof(argv[++i]);
47			break;
48	greg	1.4	case 'z':
49			lzcomp = !lzcomp;
50			break;
51	greg	1.5	case 'b':
52			greyscale = !greyscale;
53			break;
54	greg	1.1	case 'e':
55			if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
56			goto userr;
57			bradj = atoi(argv[++i]);
58			break;
59			case 'r':
60			reverse = !reverse;
61			break;
62			case '\0':
63			goto doneopts;
64			default:
65			goto userr;
66			}
67			else
68			break;
69			doneopts:
70			setcolrgam(gamma);
71
72			if (reverse)
73			if (i != argc-2 && i != argc-1)
74			goto userr;
75			else
76			tiff2ra(argv[i], argv[i+1]);
77			else
78			if (i != argc-2)
79			goto userr;
80			else
81			ra2tiff(argv[i], argv[i+1]);
82
83			exit(0);
84			userr:
85	greg	1.4	fprintf(stderr,
86	greg	1.5	"Usage: %s [-r][-b][-z][-e +/-stops][-g gamma] input output\n",
87	greg	1.1	progname);
88			exit(1);
89			}
90
91
92			quiterr(err) /* print message and exit */
93			char *err;
94			{
95			if (err != NULL) {
96			fprintf(stderr, "%s: %s\n", progname, err);
97			exit(1);
98			}
99			exit(0);
100			}
101
102
103			tiff2ra(inpf, outf) /* convert TIFF file to Radiance picture */
104			char inpf, outf;
105			{
106			unsigned long xmax, ymax;
107			TIFF *tif;
108	greg	1.5	unsigned short pconfig, nsamps;
109	greg	1.1	unsigned short hi;
110			register BYTE *scanin;
111			register COLR *scanout;
112			register int x;
113			int y;
114			/* open/check TIFF file */
115			if ((tif = TIFFOpen(inpf, "r")) == NULL)
116			quiterr("cannot open TIFF input");
117	greg	1.5	if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &nsamps) \|\|
118			(nsamps != 1 && nsamps != 3))
119	greg	1.1	quiterr("unsupported samples per pixel");
120			if (!TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &hi) \|\| hi != 8)
121			quiterr("unsupported bits per sample");
122	greg	1.5	if (TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &hi) &&
123			hi != (nsamps==1 ? 1 : 2))
124	greg	1.1	quiterr("unsupported photometric interpretation");
125			if (!TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &pconfig) \|\|
126			(pconfig != 1 && pconfig != 2))
127			quiterr("unsupported planar configuration");
128			if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &xmax) \|\|
129			!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &ymax))
130			quiterr("unknown input image resolution");
131			/* allocate scanlines */
132			scanin = (BYTE *)malloc(TIFFScanlineSize(tif));
133			scanout = (COLR )malloc(xmaxsizeof(COLR));
134			if (scanin == NULL \|\| scanout == NULL)
135			quiterr("out of memory in tiff2ra");
136			/* open output and write header */
137			if (outf != NULL && strcmp(outf, "-") &&
138			freopen(outf, "w", stdout) == NULL)
139			quiterr("cannot open Radiance output file");
140			fputs(progname, stdout);
141			if (bradj)
142			printf(" -e %+d", bradj);
143			fputs(" -r\n", stdout);
144			fputformat(COLRFMT, stdout);
145			putchar('\n');
146	greg	1.6	fprtresolu(xmax, ymax, stdout);
147	greg	1.1	/* convert image */
148	greg	1.5	if (nsamps == 1)
149			pconfig = 1;
150	greg	1.1	for (y = 0; y < ymax; y++) {
151			if (pconfig == 1) {
152			if (TIFFReadScanline(tif, scanin, y, 0) < 0)
153			goto readerr;
154	greg	1.5	if (nsamps == 1)
155			for (x = 0; x < xmax; x++)
156			scanout[x][RED] =
157			scanout[x][GRN] =
158			scanout[x][BLU] = scanin[x];
159			else
160			for (x = 0; x < xmax; x++) {
161			scanout[x][RED] = scanin[3*x];
162			scanout[x][GRN] = scanin[3*x+1];
163			scanout[x][BLU] = scanin[3*x+2];
164			}
165	greg	1.1	} else {
166			if (TIFFReadScanline(tif, scanin, y, 0) < 0)
167			goto readerr;
168			for (x = 0; x < xmax; x++)
169			scanout[x][RED] = scanin[x];
170			if (TIFFReadScanline(tif, scanin, y, 1) < 0)
171			goto readerr;
172			for (x = 0; x < xmax; x++)
173			scanout[x][GRN] = scanin[x];
174			if (TIFFReadScanline(tif, scanin, y, 2) < 0)
175			goto readerr;
176			for (x = 0; x < xmax; x++)
177			scanout[x][BLU] = scanin[x];
178			}
179			gambs_colrs(scanout, xmax);
180			if (bradj)
181			shiftcolrs(scanout, xmax, bradj);
182			if (fwritecolrs(scanout, xmax, stdout) < 0)
183			quiterr("error writing Radiance picture");
184			}
185			/* clean up */
186			free((char *)scanin);
187			free((char *)scanout);
188			TIFFClose(tif);
189			return;
190			readerr:
191			quiterr("error reading TIFF input");
192			}
193
194
195			ra2tiff(inpf, outf) /* convert Radiance file to 24-bit TIFF */
196			char inpf, outf;
197			{
198			TIFF *tif;
199			int xmax, ymax;
200			BYTE *scanout;
201			COLR *scanin;
202			register int x;
203			int y;
204			/* open Radiance file */
205			if (strcmp(inpf, "-") && freopen(inpf, "r", stdin) == NULL)
206			quiterr("cannot open Radiance input file");
207	greg	1.2	if (checkheader(stdin, COLRFMT, NULL) < 0 \|\|
208	greg	1.6	fgetresolu(&xmax, &ymax, stdin) < 0)
209	greg	1.1	quiterr("bad Radiance picture");
210			/* open TIFF file */
211			if ((tif = TIFFOpen(outf, "w")) == NULL)
212			quiterr("cannot open TIFF output");
213			TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (unsigned long)xmax);
214			TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (unsigned long)ymax);
215	greg	1.5	TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, greyscale ? 1 : 3);
216	greg	1.1	TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
217	greg	1.5	TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, greyscale ? 1 : 2);
218	greg	1.1	TIFFSetField(tif, TIFFTAG_PLANARCONFIG, 1);
219	greg	1.4	if (lzcomp)
220			TIFFSetField(tif, TIFFTAG_COMPRESSION, (unsigned short)5);
221	greg	1.1	/* allocate scanlines */
222			scanin = (COLR )malloc(xmaxsizeof(COLR));
223			scanout = (BYTE *)malloc(TIFFScanlineSize(tif));
224			if (scanin == NULL \|\| scanout == NULL)
225			quiterr("out of memory in ra2tiff");
226			/* convert image */
227			for (y = 0; y < ymax; y++) {
228			if (freadcolrs(scanin, xmax, stdin) < 0)
229			quiterr("error reading Radiance picture");
230			if (bradj)
231			shiftcolrs(scanin, xmax, bradj);
232	greg	1.5	if (greyscale) {
233			for (x = 0; x < xmax; x++)
234			scanin[x][GRN] = normbright(scanin[x]);
235			colrs_gambs(scanin, xmax);
236			for (x = 0; x < xmax; x++)
237			scanout[x] = scanin[x][GRN];
238			} else {
239			colrs_gambs(scanin, xmax);
240			for (x = 0; x < xmax; x++) {
241			scanout[3*x] = scanin[x][RED];
242			scanout[3*x+1] = scanin[x][GRN];
243			scanout[3*x+2] = scanin[x][BLU];
244			}
245	greg	1.1	}
246			if (TIFFWriteScanline(tif, scanout, y, 0) < 0)
247			quiterr("error writing TIFF output");
248			}
249			/* clean up */
250			free((char *)scanin);
251			free((char *)scanout);
252			TIFFClose(tif);
253			}