src/px/ra_rgbe.c

#ifndef lint
static const char       RCSid[] = "$Id: ra_rgbe.c,v 2.11 2003/04/23 00:52:34 greg Exp $";
#endif
/*
 *  program to convert from RADIANCE RLE to flat format
 */

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

#include  "platform.h"
#include  "color.h"
#include  "resolu.h"

extern int      addhline();

#define dumpheader(fp)  fwrite(headlines, 1, headlen, fp)

int  bradj = 0;                         /* brightness adjustment */

int  doflat = 1;                        /* produce flat file */

int  force = 0;                         /* force file overwrite? */

int  findframe = 0;                     /* find a specific frame? */

int  frameno = 0;                       /* current frame number */
int  fmterr = 0;                        /* got input format error */
char  *headlines;                       /* current header info. */
int  headlen;                           /* current header length */

char  *progname;


main(argc, argv)
int  argc;
char  *argv[];
{
        char    *ospec;
        int  i;

        progname = argv[0];

        for (i = 1; i < argc; i++)
                if (argv[i][0] == '-')
                        switch (argv[i][1]) {
                        case 'r':
                                doflat = !doflat;
                                break;
                        case 'e':
                                if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
                                        goto userr;
                                bradj = atoi(argv[++i]);
                                break;
                        case 'n':
                                findframe = atoi(argv[++i]);
                                break;
                        case 'f':
                                force++;
                                break;
                        case '\0':
                                goto gotfile;
                        default:
                                goto userr;
                        }
                else
                        break;
gotfile:
        if (i < argc-2)
                goto userr;
        if (i <= argc-1 && strcmp(argv[i], "-") &&
                        freopen(argv[i], "r", stdin) == NULL) {
                fprintf(stderr, "%s: can't open input \"%s\"\n",
                                progname, argv[i]);
                exit(1);
        }
        SET_FILE_BINARY(stdin);
        ospec = i==argc-2 ? argv[i+1] : (char *)NULL;
        while (transfer(ospec))
                ;
        exit(0);
userr:
        fprintf(stderr,
        "Usage: %s [-r][-e +/-stops][-f][-n frame] [input [outspec]]\n",
                        progname);
        exit(1);
}


transfer(ospec)                 /* transfer a Radiance picture */
char    *ospec;
{
        char    oname[128];
        FILE    *fp;
        int     order;
        int     xmax, ymax;
        COLR    *scanin;
        int     y;
                                        /* get header info. */
        if (!(y = loadheader(stdin)))
                return(0);
        if (y < 0 || (order = fgetresolu(&xmax, &ymax, stdin)) < 0) {
                fprintf(stderr, "%s: bad input format\n", progname);
                exit(1);
        }
                                        /* did we pass the target frame? */
        if (findframe && findframe < frameno)
                return(0);
                                        /* allocate scanline */
        scanin = (COLR *)tempbuffer(xmax*sizeof(COLR));
        if (scanin == NULL) {
                perror(progname);
                exit(1);
        }
                                        /* skip frame? */
        if (findframe > frameno) {
                for (y = ymax; y--; )
                        if (freadcolrs(scanin, xmax, stdin) < 0) {
                                fprintf(stderr,
                                        "%s: error reading input picture\n",
                                                progname);
                                exit(1);
                        }
                return(1);
        }
                                        /* open output file/command */
        if (ospec == NULL) {
                strcpy(oname, "<stdout>");
                fp = stdout;
        } else {
                sprintf(oname, ospec, frameno);
                if (oname[0] == '!') {
                        if ((fp = popen(oname+1, "w")) == NULL) {
                                fprintf(stderr, "%s: cannot start \"%s\"\n",
                                                progname, oname);
                                exit(1);
                        }
                } else {
                        if (!force && access(oname, 0) >= 0) {
                                fprintf(stderr,
                                        "%s: output file \"%s\" exists\n",
                                                progname, oname);
                                exit(1);
                        }
                        if ((fp = fopen(oname, "w")) == NULL) {
                                fprintf(stderr, "%s: ", progname);
                                perror(oname);
                                exit(1);
                        }
                }
        }
        SET_FILE_BINARY(fp);
        dumpheader(fp);                 /* put out header */
        fputs(progname, fp);
        if (bradj)
                fprintf(fp, " -e %+d", bradj);
        if (!doflat)
                fputs(" -r", fp);
        fputc('\n', fp);
        if (bradj)
                fputexpos(pow(2.0, (double)bradj), fp);
        fputc('\n', fp);
        fputresolu(order, xmax, ymax, fp);
                                        /* transfer picture */
        for (y = ymax; y--; ) {
                if (freadcolrs(scanin, xmax, stdin) < 0) {
                        fprintf(stderr, "%s: error reading input picture\n",
                                        progname);
                        exit(1);
                }
                if (bradj)
                        shiftcolrs(scanin, xmax, bradj);
                if (doflat)
                        fwrite((char *)scanin, sizeof(COLR), xmax, fp);
                else
                        fwritecolrs(scanin, xmax, fp);
                if (ferror(fp)) {
                        fprintf(stderr, "%s: error writing output to \"%s\"\n",
                                        progname, oname);
                        exit(1);
                }
        }
                                        /* clean up */
        if (oname[0] == '!')
                pclose(fp);
        else if (ospec != NULL)
                fclose(fp);
        return(1);
}


int
addhline(s)                     /* add a line to our info. header */
char    *s;
{
        char    fmt[32];
        int     n;

        if (formatval(fmt, s))
                fmterr += !globmatch(PICFMT, fmt);
        else if (!strncmp(s, "FRAME=", 6))
                frameno = atoi(s+6);
        n = strlen(s);
        if (headlen)
                headlines = (char *)realloc((void *)headlines, headlen+n+1);
        else
                headlines = (char *)malloc(n+1);
        if (headlines == NULL) {
                perror(progname);
                exit(1);
        }
        strcpy(headlines+headlen, s);
        headlen += n;
        return(0);
}


loadheader(fp)                  /* load an info. header into memory */
FILE    *fp;
{
        fmterr = 0; frameno = 0;
        if (headlen) {                  /* free old header */
                free(headlines);
                headlen = 0;
        }
        if (getheader(fp, addhline, NULL) < 0)
                return(0);
        if (fmterr)
                return(-1);
        return(1);
}
Revision:	2.12
Committed:	Thu Jun 5 19:29:34 2003 UTC (20 years, 10 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.11:	+5 -11 lines
Log Message:	Macros for setting binary file mode. Replacing MSDOS by _WIN32.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.12	static const char RCSid[] = "$Id: ra_rgbe.c,v 2.11 2003/04/23 00:52:34 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* program to convert from RADIANCE RLE to flat format
6			*/
7
8			#include <stdio.h>
9	greg	2.4	#include <math.h>
10	greg	2.10	#include <time.h>
11	schorsch	2.12
12			#include "platform.h"
13	greg	2.4	#include "color.h"
14			#include "resolu.h"
15
16	gregl	2.8	extern int addhline();
17	greg	2.3
18	gregl	2.8	#define dumpheader(fp) fwrite(headlines, 1, headlen, fp)
19
20	greg	1.1	int bradj = 0; /* brightness adjustment */
21
22			int doflat = 1; /* produce flat file */
23
24	gregl	2.8	int force = 0; /* force file overwrite? */
25
26			int findframe = 0; /* find a specific frame? */
27
28			int frameno = 0; /* current frame number */
29			int fmterr = 0; /* got input format error */
30			char headlines; / current header info. */
31			int headlen; /* current header length */
32
33	greg	1.1	char *progname;
34
35
36			main(argc, argv)
37			int argc;
38			char *argv[];
39			{
40	gregl	2.8	char *ospec;
41	greg	1.1	int i;
42	gregl	2.7
43	greg	1.1	progname = argv[0];
44
45			for (i = 1; i < argc; i++)
46			if (argv[i][0] == '-')
47			switch (argv[i][1]) {
48			case 'r':
49			doflat = !doflat;
50			break;
51			case 'e':
52			if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
53			goto userr;
54			bradj = atoi(argv[++i]);
55			break;
56	gregl	2.8	case 'n':
57			findframe = atoi(argv[++i]);
58			break;
59			case 'f':
60			force++;
61			break;
62			case '\0':
63			goto gotfile;
64	greg	1.1	default:
65			goto userr;
66			}
67			else
68			break;
69	gregl	2.8	gotfile:
70	greg	1.1	if (i < argc-2)
71			goto userr;
72	gregl	2.8	if (i <= argc-1 && strcmp(argv[i], "-") &&
73			freopen(argv[i], "r", stdin) == NULL) {
74	greg	1.1	fprintf(stderr, "%s: can't open input \"%s\"\n",
75			progname, argv[i]);
76			exit(1);
77			}
78	schorsch	2.12	SET_FILE_BINARY(stdin);
79	gregl	2.8	ospec = i==argc-2 ? argv[i+1] : (char *)NULL;
80			while (transfer(ospec))
81			;
82	greg	1.1	exit(0);
83			userr:
84	gregl	2.8	fprintf(stderr,
85			"Usage: %s [-r][-e +/-stops][-f][-n frame] [input [outspec]]\n",
86	greg	1.1	progname);
87			exit(1);
88			}
89
90
91	gregl	2.8	transfer(ospec) /* transfer a Radiance picture */
92			char *ospec;
93	greg	1.1	{
94	gregl	2.8	char oname[128];
95			FILE *fp;
96	greg	1.2	int order;
97	greg	2.3	int xmax, ymax;
98	greg	1.1	COLR *scanin;
99			int y;
100	gregl	2.8	/* get header info. */
101			if (!(y = loadheader(stdin)))
102			return(0);
103			if (y < 0 \|\| (order = fgetresolu(&xmax, &ymax, stdin)) < 0) {
104			fprintf(stderr, "%s: bad input format\n", progname);
105			exit(1);
106			}
107			/* did we pass the target frame? */
108			if (findframe && findframe < frameno)
109			return(0);
110			/* allocate scanline */
111			scanin = (COLR )tempbuffer(xmaxsizeof(COLR));
112			if (scanin == NULL) {
113			perror(progname);
114			exit(1);
115			}
116			/* skip frame? */
117			if (findframe > frameno) {
118			for (y = ymax; y--; )
119			if (freadcolrs(scanin, xmax, stdin) < 0) {
120			fprintf(stderr,
121			"%s: error reading input picture\n",
122			progname);
123			exit(1);
124			}
125			return(1);
126			}
127			/* open output file/command */
128			if (ospec == NULL) {
129			strcpy(oname, "<stdout>");
130			fp = stdout;
131			} else {
132			sprintf(oname, ospec, frameno);
133			if (oname[0] == '!') {
134			if ((fp = popen(oname+1, "w")) == NULL) {
135			fprintf(stderr, "%s: cannot start \"%s\"\n",
136			progname, oname);
137			exit(1);
138			}
139			} else {
140			if (!force && access(oname, 0) >= 0) {
141			fprintf(stderr,
142			"%s: output file \"%s\" exists\n",
143			progname, oname);
144			exit(1);
145			}
146			if ((fp = fopen(oname, "w")) == NULL) {
147			fprintf(stderr, "%s: ", progname);
148			perror(oname);
149			exit(1);
150			}
151			}
152			}
153	schorsch	2.12	SET_FILE_BINARY(fp);
154	gregl	2.8	dumpheader(fp); /* put out header */
155			fputs(progname, fp);
156	greg	1.1	if (bradj)
157	gregl	2.8	fprintf(fp, " -e %+d", bradj);
158	gregl	2.7	if (!doflat)
159	gregl	2.8	fputs(" -r", fp);
160			fputc('\n', fp);
161	greg	2.2	if (bradj)
162	gregl	2.8	fputexpos(pow(2.0, (double)bradj), fp);
163			fputc('\n', fp);
164			fputresolu(order, xmax, ymax, fp);
165			/* transfer picture */
166	gregl	2.7	for (y = ymax; y--; ) {
167	gregl	2.8	if (freadcolrs(scanin, xmax, stdin) < 0) {
168			fprintf(stderr, "%s: error reading input picture\n",
169			progname);
170			exit(1);
171			}
172	greg	1.1	if (bradj)
173			shiftcolrs(scanin, xmax, bradj);
174			if (doflat)
175	gregl	2.8	fwrite((char *)scanin, sizeof(COLR), xmax, fp);
176	greg	1.1	else
177	gregl	2.8	fwritecolrs(scanin, xmax, fp);
178			if (ferror(fp)) {
179			fprintf(stderr, "%s: error writing output to \"%s\"\n",
180			progname, oname);
181			exit(1);
182			}
183	greg	1.1	}
184	gregl	2.8	/* clean up */
185			if (oname[0] == '!')
186			pclose(fp);
187			else if (ospec != NULL)
188			fclose(fp);
189			return(1);
190			}
191
192
193	gwlarson	2.9	int
194	gregl	2.8	addhline(s) /* add a line to our info. header */
195			char *s;
196			{
197			char fmt[32];
198			int n;
199
200			if (formatval(fmt, s))
201			fmterr += !globmatch(PICFMT, fmt);
202			else if (!strncmp(s, "FRAME=", 6))
203			frameno = atoi(s+6);
204			n = strlen(s);
205			if (headlen)
206	greg	2.11	headlines = (char )realloc((void )headlines, headlen+n+1);
207	gregl	2.8	else
208			headlines = (char *)malloc(n+1);
209			if (headlines == NULL) {
210			perror(progname);
211			exit(1);
212			}
213			strcpy(headlines+headlen, s);
214			headlen += n;
215	gwlarson	2.9	return(0);
216	gregl	2.8	}
217
218
219			loadheader(fp) /* load an info. header into memory */
220			FILE *fp;
221			{
222			fmterr = 0; frameno = 0;
223			if (headlen) { /* free old header */
224			free(headlines);
225			headlen = 0;
226			}
227			if (getheader(fp, addhline, NULL) < 0)
228			return(0);
229			if (fmterr)
230			return(-1);
231			return(1);
232	greg	1.1	}