src/px/ra_pr24.c

/* Copyright (c) 1992 Regents of the University of California */

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

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

#include  <stdio.h>

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

#include  "rasterfile.h"

#include  "color.h"

#include  "resolu.h"

extern double  pow();

extern char  *malloc();

double  gamma = 2.2;                    /* gamma correction */

int  bradj = 0;                         /* brightness adjustment */

char  *progname;

int  xmax, ymax;


main(argc, argv)
int  argc;
char  *argv[];
{
        struct rasterfile  head;
        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];

        head.ras_type = RT_STANDARD;
        for (i = 1; i < argc; i++)
                if (argv[i][0] == '-')
                        switch (argv[i][1]) {
                        case 'g':
                                gamma = atof(argv[++i]);
                                break;
                        case 'e':
                                if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
                                        goto userr;
                                bradj = atoi(argv[++i]);
                                break;
                        case 'r':
                                if (!strcmp(argv[i], "-rgb"))
                                        head.ras_type = RT_FORMAT_RGB;
                                else
                                        reverse = 1;
                                break;
                        default:
                                goto userr;
                        }
                else
                        break;

        if (i < argc-2)
                goto userr;
        if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
                fprintf(stderr, "%s: can't open input \"%s\"\n",
                                progname, argv[i]);
                exit(1);
        }
        if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
                fprintf(stderr, "can't open output \"%s\"\n",
                                progname, argv[i+1]);
                exit(1);
        }
        setcolrgam(gamma);
        if (reverse) {
                                        /* get header */
                if (fread((char *)&head, sizeof(head), 1, stdin) != 1)
                        quiterr("missing header");
                if (head.ras_magic != RAS_MAGIC)
                        quiterr("bad raster format");
                xmax = head.ras_width;
                ymax = head.ras_height;
                if ((head.ras_type != RT_STANDARD
                                        && head.ras_type != RT_FORMAT_RGB)
                                || head.ras_maptype != RMT_NONE
                                || head.ras_depth != 24)
                        quiterr("incompatible format");
                                        /* put header */
                printargs(i, argv, stdout);
                fputformat(COLRFMT, stdout);
                putchar('\n');
                fprtresolu(xmax, ymax, stdout);
                                        /* convert file */
                pr2ra(head.ras_type);
        } else {
                                        /* get header info. */
                if (checkheader(stdin, COLRFMT, NULL) < 0 ||
                                fgetresolu(&xmax, &ymax, stdin) < 0)
                        quiterr("bad picture format");
                                        /* write rasterfile header */
                head.ras_magic = RAS_MAGIC;
                head.ras_width = xmax;
                head.ras_height = ymax;
                head.ras_depth = 24;
                head.ras_length = xmax*ymax*3;
                head.ras_maptype = RMT_NONE;
                head.ras_maplength = 0;
                fwrite((char *)&head, sizeof(head), 1, stdout);
                                        /* convert file */
                ra2pr(head.ras_type);
        }
        exit(0);
userr:
        fprintf(stderr, "Usage: %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);
}


pr2ra(rf)               /* convert 24-bit scanlines to Radiance picture */
int     rf;
{
        COLR    *scanout;
        register int    x;
        int     y;
                                                /* allocate scanline */
        scanout = (COLR *)malloc(xmax*sizeof(COLR));
        if (scanout == NULL)
                quiterr("out of memory in pr2ra");
                                                /* convert image */
        for (y = ymax-1; y >= 0; y--) {
                if (rf == RT_FORMAT_RGB)
                        for (x = 0; x < xmax; x++) {
                                scanout[x][RED] = getc(stdin);
                                scanout[x][GRN] = getc(stdin);
                                scanout[x][BLU] = getc(stdin);
                        }
                else
                        for (x = 0; x < xmax; x++) {
                                scanout[x][BLU] = getc(stdin);
                                scanout[x][GRN] = getc(stdin);
                                scanout[x][RED] = getc(stdin);
                        }
                if (feof(stdin) || ferror(stdin))
                        quiterr("error reading rasterfile");
                gambs_colrs(scanout, xmax);
                if (bradj)
                        shiftcolrs(scanout, xmax, bradj);
                if (fwritecolrs(scanout, xmax, stdout) < 0)
                        quiterr("error writing Radiance picture");
        }
                                                /* free scanline */
        free((char *)scanout);
}


ra2pr(rf)               /* convert Radiance scanlines to 24-bit rasterfile */
int  rf;
{
        COLR    *scanin;
        register int    x;
        int     y;
                                                /* allocate scanline */
        scanin = (COLR *)malloc(xmax*sizeof(COLR));
        if (scanin == NULL)
                quiterr("out of memory in ra2pr");
                                                /* convert image */
        for (y = ymax-1; y >= 0; y--) {
                if (freadcolrs(scanin, xmax, stdin) < 0)
                        quiterr("error reading Radiance picture");
                if (bradj)
                        shiftcolrs(scanin, xmax, bradj);
                colrs_gambs(scanin, xmax);
                if (rf == RT_FORMAT_RGB)
                        for (x = 0; x < xmax; x++) {
                                putc(scanin[x][RED], stdout);
                                putc(scanin[x][GRN], stdout);
                                putc(scanin[x][BLU], stdout);
                        }
                else
                        for (x = 0; x < xmax; x++) {
                                putc(scanin[x][BLU], stdout);
                                putc(scanin[x][GRN], stdout);
                                putc(scanin[x][RED], stdout);
                        }
                if (ferror(stdout))
                        quiterr("error writing rasterfile");
        }
                                                /* free scanline */
        free((char *)scanin);
}
Revision:	2.3
Committed:	Mon Sep 21 12:15:02 1992 UTC (31 years, 7 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.2:	+13 -2 lines
Log Message:	Changes for PC port
#	User	Rev	Content
1	greg	2.3	/* Copyright (c) 1992 Regents of the University of California */
2	greg	1.1
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6
7			/*
8			* program to convert between RADIANCE and 24-bit rasterfiles.
9			*/
10
11			#include <stdio.h>
12
13	greg	2.3	#ifdef MSDOS
14			#include <fcntl.h>
15			#endif
16
17	greg	1.1	#include "rasterfile.h"
18
19			#include "color.h"
20
21	greg	1.11	#include "resolu.h"
22
23	greg	2.2	extern double pow();
24	greg	1.1
25	greg	2.3	extern char *malloc();
26
27	greg	1.10	double gamma = 2.2; /* gamma correction */
28	greg	1.1
29	greg	1.7	int bradj = 0; /* brightness adjustment */
30
31	greg	1.1	char *progname;
32
33			int xmax, ymax;
34
35
36			main(argc, argv)
37			int argc;
38			char *argv[];
39			{
40			struct rasterfile head;
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	greg	1.9	head.ras_type = RT_STANDARD;
52	greg	1.1	for (i = 1; i < argc; i++)
53			if (argv[i][0] == '-')
54			switch (argv[i][1]) {
55			case 'g':
56			gamma = atof(argv[++i]);
57			break;
58	greg	1.7	case 'e':
59			if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
60			goto userr;
61			bradj = atoi(argv[++i]);
62			break;
63	greg	1.1	case 'r':
64	greg	1.9	if (!strcmp(argv[i], "-rgb"))
65			head.ras_type = RT_FORMAT_RGB;
66			else
67			reverse = 1;
68	greg	1.1	break;
69			default:
70			goto userr;
71			}
72			else
73			break;
74
75			if (i < argc-2)
76			goto userr;
77			if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
78			fprintf(stderr, "%s: can't open input \"%s\"\n",
79			progname, argv[i]);
80			exit(1);
81			}
82			if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
83			fprintf(stderr, "can't open output \"%s\"\n",
84			progname, argv[i+1]);
85			exit(1);
86			}
87	greg	1.3	setcolrgam(gamma);
88	greg	1.1	if (reverse) {
89			/* get header */
90			if (fread((char *)&head, sizeof(head), 1, stdin) != 1)
91			quiterr("missing header");
92			if (head.ras_magic != RAS_MAGIC)
93			quiterr("bad raster format");
94			xmax = head.ras_width;
95			ymax = head.ras_height;
96	greg	1.6	if ((head.ras_type != RT_STANDARD
97			&& head.ras_type != RT_FORMAT_RGB)
98			\|\| head.ras_maptype != RMT_NONE
99			\|\| head.ras_depth != 24)
100	greg	1.1	quiterr("incompatible format");
101			/* put header */
102			printargs(i, argv, stdout);
103	greg	1.5	fputformat(COLRFMT, stdout);
104	greg	1.1	putchar('\n');
105	greg	1.11	fprtresolu(xmax, ymax, stdout);
106	greg	1.1	/* convert file */
107	greg	1.6	pr2ra(head.ras_type);
108	greg	1.1	} else {
109	greg	1.5	/* get header info. */
110			if (checkheader(stdin, COLRFMT, NULL) < 0 \|\|
111	greg	1.11	fgetresolu(&xmax, &ymax, stdin) < 0)
112	greg	1.5	quiterr("bad picture format");
113	greg	1.1	/* write rasterfile header */
114			head.ras_magic = RAS_MAGIC;
115			head.ras_width = xmax;
116			head.ras_height = ymax;
117			head.ras_depth = 24;
118			head.ras_length = xmaxymax3;
119			head.ras_maptype = RMT_NONE;
120			head.ras_maplength = 0;
121			fwrite((char *)&head, sizeof(head), 1, stdout);
122			/* convert file */
123	greg	1.9	ra2pr(head.ras_type);
124	greg	1.1	}
125			exit(0);
126			userr:
127	greg	1.7	fprintf(stderr, "Usage: %s [-r][-g gamma][-e +/-stops] [input [output]]\n",
128	greg	1.1	progname);
129			exit(1);
130			}
131
132
133			quiterr(err) /* print message and exit */
134			char *err;
135			{
136			if (err != NULL) {
137			fprintf(stderr, "%s: %s\n", progname, err);
138			exit(1);
139			}
140			exit(0);
141			}
142
143
144	greg	1.6	pr2ra(rf) /* convert 24-bit scanlines to Radiance picture */
145			int rf;
146	greg	1.1	{
147	greg	1.3	COLR *scanout;
148	greg	1.1	register int x;
149			int y;
150			/* allocate scanline */
151	greg	1.3	scanout = (COLR )malloc(xmaxsizeof(COLR));
152	greg	1.1	if (scanout == NULL)
153			quiterr("out of memory in pr2ra");
154			/* convert image */
155			for (y = ymax-1; y >= 0; y--) {
156	greg	1.9	if (rf == RT_FORMAT_RGB)
157			for (x = 0; x < xmax; x++) {
158	greg	1.6	scanout[x][RED] = getc(stdin);
159			scanout[x][GRN] = getc(stdin);
160			scanout[x][BLU] = getc(stdin);
161	greg	1.9	}
162			else
163			for (x = 0; x < xmax; x++) {
164	greg	1.6	scanout[x][BLU] = getc(stdin);
165			scanout[x][GRN] = getc(stdin);
166			scanout[x][RED] = getc(stdin);
167			}
168	greg	1.3	if (feof(stdin) \|\| ferror(stdin))
169			quiterr("error reading rasterfile");
170			gambs_colrs(scanout, xmax);
171	greg	1.7	if (bradj)
172			shiftcolrs(scanout, xmax, bradj);
173	greg	1.3	if (fwritecolrs(scanout, xmax, stdout) < 0)
174	greg	1.1	quiterr("error writing Radiance picture");
175			}
176			/* free scanline */
177			free((char *)scanout);
178			}
179
180
181	greg	1.9	ra2pr(rf) /* convert Radiance scanlines to 24-bit rasterfile */
182			int rf;
183	greg	1.1	{
184	greg	1.3	COLR *scanin;
185	greg	1.1	register int x;
186			int y;
187			/* allocate scanline */
188	greg	1.3	scanin = (COLR )malloc(xmaxsizeof(COLR));
189	greg	1.1	if (scanin == NULL)
190	greg	1.8	quiterr("out of memory in ra2pr");
191	greg	1.1	/* convert image */
192			for (y = ymax-1; y >= 0; y--) {
193	greg	1.3	if (freadcolrs(scanin, xmax, stdin) < 0)
194	greg	1.1	quiterr("error reading Radiance picture");
195	greg	1.7	if (bradj)
196			shiftcolrs(scanin, xmax, bradj);
197	greg	1.3	colrs_gambs(scanin, xmax);
198	greg	1.9	if (rf == RT_FORMAT_RGB)
199			for (x = 0; x < xmax; x++) {
200			putc(scanin[x][RED], stdout);
201			putc(scanin[x][GRN], stdout);
202			putc(scanin[x][BLU], stdout);
203			}
204			else
205			for (x = 0; x < xmax; x++) {
206			putc(scanin[x][BLU], stdout);
207			putc(scanin[x][GRN], stdout);
208			putc(scanin[x][RED], stdout);
209			}
210	greg	1.1	if (ferror(stdout))
211			quiterr("error writing rasterfile");
212			}
213			/* free scanline */
214			free((char *)scanin);
215			}