src/px/ra_bn.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  ra_bn.c - program to convert between RADIANCE and barneyscan picture format.
 *
 *      10/12/88
 */

#include  <stdio.h>

#ifdef MSDOS
#include  <fcntl.h>
#endif

#include  <time.h>

#include  <math.h>

#include  "color.h"

#include  "resolu.h"

double  gamcor = 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;
#ifdef MSDOS
        extern int  _fmode;
        _fmode = O_BINARY;
        setmode(fileno(stdin), O_BINARY);
        setmode(fileno(stdout), O_BINARY);
#endif
        progname = argv[0];

        for (i = 1; i < argc; i++)
                if (argv[i][0] == '-')
                        switch (argv[i][1]) {
                        case 'g':
                                gamcor = 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(gamcor);

        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 */
                newheader("RADIANCE", stdout);
                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((void *)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((void *)outline);
}
Revision:	2.7
Committed:	Sat Feb 22 02:07:27 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.6:	+5 -8 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.7	static const char RCSid[] = "$Id$";
3	greg	1.1	#endif
4			/*
5			* ra_bn.c - program to convert between RADIANCE and barneyscan picture format.
6			*
7			* 10/12/88
8			*/
9
10			#include <stdio.h>
11
12	greg	2.3	#ifdef MSDOS
13			#include <fcntl.h>
14			#endif
15
16	greg	2.7	#include <time.h>
17
18	greg	2.4	#include <math.h>
19
20	greg	1.1	#include "color.h"
21
22	greg	1.9	#include "resolu.h"
23	greg	1.1
24	greg	2.5	double gamcor = 2.0; /* gamma correction */
25	greg	1.1
26	greg	1.8	int bradj = 0; /* brightness adjustment */
27
28	greg	1.1	char *progname;
29
30			char errmsg[128];
31
32			FILE rafp, bnfp[3];
33
34			int xmax, ymax;
35
36
37			main(argc, argv)
38			int argc;
39			char *argv[];
40			{
41			int reverse = 0;
42			int i;
43	greg	2.3	#ifdef MSDOS
44			extern int _fmode;
45			_fmode = O_BINARY;
46			setmode(fileno(stdin), O_BINARY);
47			setmode(fileno(stdout), O_BINARY);
48			#endif
49	greg	1.1	progname = argv[0];
50
51			for (i = 1; i < argc; i++)
52			if (argv[i][0] == '-')
53			switch (argv[i][1]) {
54			case 'g':
55	greg	2.5	gamcor = atof(argv[++i]);
56	greg	1.1	break;
57			case 'r':
58			reverse = !reverse;
59			break;
60	greg	1.8	case 'e':
61			if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
62			goto userr;
63			bradj = atoi(argv[++i]);
64			break;
65	greg	1.1	default:
66			goto userr;
67			}
68			else
69			break;
70	greg	1.6	/* set gamma correction */
71	greg	2.5	setcolrgam(gamcor);
72	greg	1.1
73			if (reverse) {
74			if (i > argc-1 \|\| i < argc-2)
75			goto userr;
76			if (openbarney(argv[i], "r") < 0) {
77			sprintf(errmsg, "cannot open input \"%s\"", argv[i]);
78			quiterr(errmsg);
79			}
80			if (i == argc-1 \|\| !strcmp(argv[i+1], "-"))
81			rafp = stdout;
82			else if ((rafp = fopen(argv[i+1], "w")) == NULL) {
83			sprintf(errmsg, "cannot open output \"%s\"",
84			argv[i+1]);
85			quiterr(errmsg);
86			}
87			/* put header */
88	greg	2.6	newheader("RADIANCE", stdout);
89	greg	1.3	printargs(i, argv, rafp);
90	greg	1.7	fputformat(COLRFMT, rafp);
91	greg	1.1	putc('\n', rafp);
92	greg	1.9	fprtresolu(xmax, ymax, rafp);
93	greg	1.1	/* convert file */
94			bn2ra();
95			} else {
96			if (i != argc-2)
97			goto userr;
98			if (!strcmp(argv[i], "-"))
99			rafp = stdin;
100			else if ((rafp = fopen(argv[i], "r")) == NULL) {
101			sprintf(errmsg, "cannot open input \"%s\"",
102			argv[i]);
103			quiterr(errmsg);
104			}
105			/* get header */
106	greg	1.7	if (checkheader(rafp, COLRFMT, NULL) < 0 \|\|
107	greg	1.9	fgetresolu(&xmax, &ymax, rafp) < 0)
108	greg	1.1	quiterr("bad RADIANCE format");
109			if (openbarney(argv[i+1], "w") < 0) {
110			sprintf(errmsg, "cannot open output \"%s\"", argv[i+1]);
111			quiterr(errmsg);
112			}
113			/* convert file */
114			ra2bn();
115			}
116			quiterr(NULL);
117			userr:
118	greg	1.8	fprintf(stderr, "Usage: %s [-g gamma][-e +/-stops] {input\|-} output\n",
119	greg	1.1	progname);
120	greg	1.8	fprintf(stderr, " or: %s -r [-g gamma][-e +/-stops] input [output\|-]\n",
121			progname);
122	greg	1.1	exit(1);
123			}
124
125
126			quiterr(err) /* print message and exit */
127			char *err;
128			{
129			if (err != NULL) {
130			fprintf(stderr, "%s: %s\n", progname, err);
131			exit(1);
132			}
133			exit(0);
134			}
135
136
137			openbarney(fname, mode) /* open barneyscan files */
138			char *fname;
139			char *mode;
140			{
141			static char suffix[3][4] = {"red", "grn", "blu"};
142			int i;
143			char file[128];
144
145			for (i = 0; i < 3; i++) {
146			sprintf(file, "%s.%s", fname, suffix[i]);
147			if ((bnfp[i] = fopen(file, mode)) == NULL)
148			return(-1);
149			}
150			if (mode[0] == 'r') { /* get header */
151			xmax = getint(bnfp[0]);
152			ymax = getint(bnfp[0]);
153			for (i = 1; i < 3; i++)
154			if (getint(bnfp[i]) != xmax \|\| getint(bnfp[i]) != ymax)
155			return(-1);
156			} else { /* put header */
157			for (i = 0; i < 3; i++) {
158			putint(xmax, bnfp[i]);
159			putint(ymax, bnfp[i]);
160			}
161			}
162			return(0);
163			}
164
165
166			int
167			getint(fp) /* get short int from barneyscan file */
168			register FILE *fp;
169			{
170			register short val;
171
172			val = getc(fp);
173			val \|= getc(fp) << 8;
174
175			return(val);
176			}
177
178
179			putint(val, fp) /* put short int to barneyscan file */
180			register int val;
181			register FILE *fp;
182			{
183			putc(val&0xff, fp);
184			putc((val >> 8)&0xff, fp);
185			}
186
187
188			ra2bn() /* convert radiance to barneyscan */
189			{
190	greg	1.6	register int i;
191			register COLR *inl;
192	greg	1.1	int j;
193
194	greg	1.6	if ((inl = (COLR )malloc(xmaxsizeof(COLR))) == NULL)
195	greg	1.1	quiterr("out of memory");
196			for (j = 0; j < ymax; j++) {
197	greg	1.6	if (freadcolrs(inl, xmax, rafp) < 0)
198	greg	1.1	quiterr("error reading RADIANCE file");
199	greg	1.8	if (bradj)
200			shiftcolrs(inl, xmax, bradj);
201	greg	1.6	colrs_gambs(inl, xmax);
202			for (i = 0; i < xmax; i++) {
203			putc(inl[i][RED], bnfp[0]);
204			putc(inl[i][GRN], bnfp[1]);
205			putc(inl[i][BLU], bnfp[2]);
206			}
207			if (ferror(bnfp[0]) \|\| ferror(bnfp[1]) \|\| ferror(bnfp[2]))
208			quiterr("error writing Barney files");
209	greg	1.1	}
210	greg	2.7	free((void *)inl);
211	greg	1.1	}
212
213
214			bn2ra() /* convert barneyscan to radiance */
215			{
216	greg	1.6	register int i;
217			register COLR *outline;
218	greg	1.1	int j;
219
220	greg	1.6	if ((outline = (COLR )malloc(xmaxsizeof(COLR))) == NULL)
221	greg	1.1	quiterr("out of memory");
222			for (j = 0; j < ymax; j++) {
223	greg	1.6	for (i = 0; i < xmax; i++) {
224			outline[i][RED] = getc(bnfp[0]);
225			outline[i][GRN] = getc(bnfp[1]);
226			outline[i][BLU] = getc(bnfp[2]);
227			}
228			if (feof(bnfp[0]) \|\| feof(bnfp[1]) \|\| feof(bnfp[2]))
229			quiterr("error reading barney file");
230			gambs_colrs(outline, xmax);
231	greg	1.8	if (bradj)
232			shiftcolrs(outline, xmax, bradj);
233	greg	1.6	if (fwritecolrs(outline, xmax, rafp) < 0)
234	greg	1.1	quiterr("error writing RADIANCE file");
235			}
236	greg	2.7	free((void *)outline);
237	greg	1.1	}