src/px/ra_pr24.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 rasterfiles.
 */

#include  <stdio.h>

#include  "rasterfile.h"

#include  "color.h"

#include  "resolu.h"

extern double  pow();

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