src/px/ra_bn.c

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

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

/*
 *  ra_bn.c - program to convert between RADIANCE and barneyscan picture format.
 *
 *      10/12/88
 */

#include  <stdio.h>

#include  "color.h"

#include  "resolu.h"

extern double  pow();

double  gamma = 2.0;                    /* gamma correction */

int  bradj = 0;                         /* brightness adjustment */

char  *progname;

char  errmsg[128];

FILE    *rafp, *bnfp[3];

int  xmax, ymax;


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 'r':
                                reverse = !reverse;
                                break;
                        case 'e':
                                if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
                                        goto userr;
                                bradj = atoi(argv[++i]);
                                break;
                        default:
                                goto userr;
                        }
                else
                        break;
                                                /* set gamma correction */
        setcolrgam(gamma);

        if (reverse) {
                if (i > argc-1 || i < argc-2)
                        goto userr;
                if (openbarney(argv[i], "r") < 0) {
                        sprintf(errmsg, "cannot open input \"%s\"", argv[i]);
                        quiterr(errmsg);
                }
                if (i == argc-1 || !strcmp(argv[i+1], "-"))
                        rafp = stdout;
                else if ((rafp = fopen(argv[i+1], "w")) == NULL) {
                        sprintf(errmsg, "cannot open output \"%s\"",
                                        argv[i+1]);
                        quiterr(errmsg);
                }
                                        /* put header */
                printargs(i, argv, rafp);
                fputformat(COLRFMT, rafp);
                putc('\n', rafp);
                fprtresolu(xmax, ymax, rafp);
                                        /* convert file */
                bn2ra();
        } else {
                if (i != argc-2)
                        goto userr;
                if (!strcmp(argv[i], "-"))
                        rafp = stdin;
                else if ((rafp = fopen(argv[i], "r")) == NULL) {
                        sprintf(errmsg, "cannot open input \"%s\"",
                                        argv[i]);
                        quiterr(errmsg);
                }
                                        /* get header */
                if (checkheader(rafp, COLRFMT, NULL) < 0 ||
                                fgetresolu(&xmax, &ymax, rafp) < 0)
                        quiterr("bad RADIANCE format");
                if (openbarney(argv[i+1], "w") < 0) {
                        sprintf(errmsg, "cannot open output \"%s\"", argv[i+1]);
                        quiterr(errmsg);
                }
                                        /* convert file */
                ra2bn();
        }
        quiterr(NULL);
userr:
        fprintf(stderr, "Usage: %s [-g gamma][-e +/-stops] {input|-} output\n",
                        progname);
        fprintf(stderr, "   or: %s -r [-g gamma][-e +/-stops] 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);
}


openbarney(fname, mode)                 /* open barneyscan files */
char    *fname;
char    *mode;
{
        static char     suffix[3][4] = {"red", "grn", "blu"};
        int     i;
        char    file[128];

        for (i = 0; i < 3; i++) {
                sprintf(file, "%s.%s", fname, suffix[i]);
                if ((bnfp[i] = fopen(file, mode)) == NULL)
                        return(-1);
        }
        if (mode[0] == 'r') {           /* get header */
                xmax = getint(bnfp[0]);
                ymax = getint(bnfp[0]);
                for (i = 1; i < 3; i++)
                        if (getint(bnfp[i]) != xmax || getint(bnfp[i]) != ymax)
                                return(-1);
        } else {                        /* put header */
                for (i = 0; i < 3; i++) {
                        putint(xmax, bnfp[i]);
                        putint(ymax, bnfp[i]);
                }
        }
        return(0);
}


int
getint(fp)                              /* get short int from barneyscan file */
register FILE   *fp;
{
        register short  val;

        val = getc(fp);
        val |= getc(fp) << 8;

        return(val);
}


putint(val, fp)                         /* put short int to barneyscan file */
register int    val;
register FILE   *fp;
{
        putc(val&0xff, fp);
        putc((val >> 8)&0xff, fp);
}


ra2bn()                                 /* convert radiance to barneyscan */
{
        register int    i;
        register COLR   *inl;
        int     j;

        if ((inl = (COLR *)malloc(xmax*sizeof(COLR))) == NULL)
                quiterr("out of memory");
        for (j = 0; j < ymax; j++) {
                if (freadcolrs(inl, xmax, rafp) < 0)
                        quiterr("error reading RADIANCE file");
                if (bradj)
                        shiftcolrs(inl, xmax, bradj);
                colrs_gambs(inl, xmax);
                for (i = 0; i < xmax; i++) {
                        putc(inl[i][RED], bnfp[0]);
                        putc(inl[i][GRN], bnfp[1]);
                        putc(inl[i][BLU], bnfp[2]);
                }
                if (ferror(bnfp[0]) || ferror(bnfp[1]) || ferror(bnfp[2]))
                        quiterr("error writing Barney files");
        }
        free((char *)inl);
}


bn2ra()                                 /* convert barneyscan to radiance */
{
        register int    i;
        register COLR   *outline;
        int     j;

        if ((outline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL)
                quiterr("out of memory");
        for (j = 0; j < ymax; j++) {
                for (i = 0; i < xmax; i++) {
                        outline[i][RED] = getc(bnfp[0]);
                        outline[i][GRN] = getc(bnfp[1]);
                        outline[i][BLU] = getc(bnfp[2]);
                }
                if (feof(bnfp[0]) || feof(bnfp[1]) || feof(bnfp[2]))
                        quiterr("error reading barney file");
                gambs_colrs(outline, xmax);
                if (bradj)
                        shiftcolrs(outline, xmax, bradj);
                if (fwritecolrs(outline, xmax, rafp) < 0)
                        quiterr("error writing RADIANCE file");
        }
        free((char *)outline);
}
Revision:	2.2
Committed:	Thu Dec 19 14:52:07 1991 UTC (32 years, 4 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.1:	+1 -1 lines
Log Message:	eliminated atof declarations for NeXT
#	User	Rev	Content
1	greg	1.8	/* Copyright (c) 1991 Regents of the University of California */
2	greg	1.1
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6
7			/*
8			* ra_bn.c - program to convert between RADIANCE and barneyscan picture format.
9			*
10			* 10/12/88
11			*/
12
13			#include <stdio.h>
14
15			#include "color.h"
16
17	greg	1.9	#include "resolu.h"
18
19	greg	2.2	extern double pow();
20	greg	1.1
21			double gamma = 2.0; /* gamma correction */
22
23	greg	1.8	int bradj = 0; /* brightness adjustment */
24
25	greg	1.1	char *progname;
26
27			char errmsg[128];
28
29			FILE rafp, bnfp[3];
30
31			int xmax, ymax;
32
33
34			main(argc, argv)
35			int argc;
36			char *argv[];
37			{
38			int reverse = 0;
39			int i;
40
41			progname = argv[0];
42
43			for (i = 1; i < argc; i++)
44			if (argv[i][0] == '-')
45			switch (argv[i][1]) {
46			case 'g':
47			gamma = atof(argv[++i]);
48			break;
49			case 'r':
50			reverse = !reverse;
51			break;
52	greg	1.8	case 'e':
53			if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
54			goto userr;
55			bradj = atoi(argv[++i]);
56			break;
57	greg	1.1	default:
58			goto userr;
59			}
60			else
61			break;
62	greg	1.6	/* set gamma correction */
63			setcolrgam(gamma);
64	greg	1.1
65			if (reverse) {
66			if (i > argc-1 \|\| i < argc-2)
67			goto userr;
68			if (openbarney(argv[i], "r") < 0) {
69			sprintf(errmsg, "cannot open input \"%s\"", argv[i]);
70			quiterr(errmsg);
71			}
72			if (i == argc-1 \|\| !strcmp(argv[i+1], "-"))
73			rafp = stdout;
74			else if ((rafp = fopen(argv[i+1], "w")) == NULL) {
75			sprintf(errmsg, "cannot open output \"%s\"",
76			argv[i+1]);
77			quiterr(errmsg);
78			}
79			/* put header */
80	greg	1.3	printargs(i, argv, rafp);
81	greg	1.7	fputformat(COLRFMT, rafp);
82	greg	1.1	putc('\n', rafp);
83	greg	1.9	fprtresolu(xmax, ymax, rafp);
84	greg	1.1	/* convert file */
85			bn2ra();
86			} else {
87			if (i != argc-2)
88			goto userr;
89			if (!strcmp(argv[i], "-"))
90			rafp = stdin;
91			else if ((rafp = fopen(argv[i], "r")) == NULL) {
92			sprintf(errmsg, "cannot open input \"%s\"",
93			argv[i]);
94			quiterr(errmsg);
95			}
96			/* get header */
97	greg	1.7	if (checkheader(rafp, COLRFMT, NULL) < 0 \|\|
98	greg	1.9	fgetresolu(&xmax, &ymax, rafp) < 0)
99	greg	1.1	quiterr("bad RADIANCE format");
100			if (openbarney(argv[i+1], "w") < 0) {
101			sprintf(errmsg, "cannot open output \"%s\"", argv[i+1]);
102			quiterr(errmsg);
103			}
104			/* convert file */
105			ra2bn();
106			}
107			quiterr(NULL);
108			userr:
109	greg	1.8	fprintf(stderr, "Usage: %s [-g gamma][-e +/-stops] {input\|-} output\n",
110	greg	1.1	progname);
111	greg	1.8	fprintf(stderr, " or: %s -r [-g gamma][-e +/-stops] input [output\|-]\n",
112			progname);
113	greg	1.1	exit(1);
114			}
115
116
117			quiterr(err) /* print message and exit */
118			char *err;
119			{
120			if (err != NULL) {
121			fprintf(stderr, "%s: %s\n", progname, err);
122			exit(1);
123			}
124			exit(0);
125			}
126
127
128			openbarney(fname, mode) /* open barneyscan files */
129			char *fname;
130			char *mode;
131			{
132			static char suffix[3][4] = {"red", "grn", "blu"};
133			int i;
134			char file[128];
135
136			for (i = 0; i < 3; i++) {
137			sprintf(file, "%s.%s", fname, suffix[i]);
138			if ((bnfp[i] = fopen(file, mode)) == NULL)
139			return(-1);
140			}
141			if (mode[0] == 'r') { /* get header */
142			xmax = getint(bnfp[0]);
143			ymax = getint(bnfp[0]);
144			for (i = 1; i < 3; i++)
145			if (getint(bnfp[i]) != xmax \|\| getint(bnfp[i]) != ymax)
146			return(-1);
147			} else { /* put header */
148			for (i = 0; i < 3; i++) {
149			putint(xmax, bnfp[i]);
150			putint(ymax, bnfp[i]);
151			}
152			}
153			return(0);
154			}
155
156
157			int
158			getint(fp) /* get short int from barneyscan file */
159			register FILE *fp;
160			{
161			register short val;
162
163			val = getc(fp);
164			val \|= getc(fp) << 8;
165
166			return(val);
167			}
168
169
170			putint(val, fp) /* put short int to barneyscan file */
171			register int val;
172			register FILE *fp;
173			{
174			putc(val&0xff, fp);
175			putc((val >> 8)&0xff, fp);
176			}
177
178
179			ra2bn() /* convert radiance to barneyscan */
180			{
181	greg	1.6	register int i;
182			register COLR *inl;
183	greg	1.1	int j;
184
185	greg	1.6	if ((inl = (COLR )malloc(xmaxsizeof(COLR))) == NULL)
186	greg	1.1	quiterr("out of memory");
187			for (j = 0; j < ymax; j++) {
188	greg	1.6	if (freadcolrs(inl, xmax, rafp) < 0)
189	greg	1.1	quiterr("error reading RADIANCE file");
190	greg	1.8	if (bradj)
191			shiftcolrs(inl, xmax, bradj);
192	greg	1.6	colrs_gambs(inl, xmax);
193			for (i = 0; i < xmax; i++) {
194			putc(inl[i][RED], bnfp[0]);
195			putc(inl[i][GRN], bnfp[1]);
196			putc(inl[i][BLU], bnfp[2]);
197			}
198			if (ferror(bnfp[0]) \|\| ferror(bnfp[1]) \|\| ferror(bnfp[2]))
199			quiterr("error writing Barney files");
200	greg	1.1	}
201	greg	1.4	free((char *)inl);
202	greg	1.1	}
203
204
205			bn2ra() /* convert barneyscan to radiance */
206			{
207	greg	1.6	register int i;
208			register COLR *outline;
209	greg	1.1	int j;
210
211	greg	1.6	if ((outline = (COLR )malloc(xmaxsizeof(COLR))) == NULL)
212	greg	1.1	quiterr("out of memory");
213			for (j = 0; j < ymax; j++) {
214	greg	1.6	for (i = 0; i < xmax; i++) {
215			outline[i][RED] = getc(bnfp[0]);
216			outline[i][GRN] = getc(bnfp[1]);
217			outline[i][BLU] = getc(bnfp[2]);
218			}
219			if (feof(bnfp[0]) \|\| feof(bnfp[1]) \|\| feof(bnfp[2]))
220			quiterr("error reading barney file");
221			gambs_colrs(outline, xmax);
222	greg	1.8	if (bradj)
223			shiftcolrs(outline, xmax, bradj);
224	greg	1.6	if (fwritecolrs(outline, xmax, rafp) < 0)
225	greg	1.1	quiterr("error writing RADIANCE file");
226			}
227			free((char *)outline);
228			}