src/px/ra_pr24.c

#ifndef lint
static const char       RCSid[] = "$Id: ra_pr24.c,v 2.9 2003/02/22 02:07:28 greg Exp $";
#endif
/*
 *  program to convert between RADIANCE and 24-bit rasterfiles.
 */

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

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

double  gamcor = 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;
        SET_DEFAULT_BINARY();
        SET_FILE_BINARY(stdin);
        SET_FILE_BINARY(stdout);
        progname = argv[0];

        head.ras_type = RT_STANDARD;
        for (i = 1; i < argc; i++)
                if (argv[i][0] == '-')
                        switch (argv[i][1]) {
                        case 'g':
                                gamcor = 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, "%s: can't open output \"%s\"\n",
                                progname, argv[i+1]);
                exit(1);
        }
        setcolrgam(gamcor);
        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 */
                newheader("RADIANCE", stdout);
                printargs(i, argv, stdout);
                fputformat(COLRFMT, stdout);
                putchar('\n');
                fprtresolu(xmax, ymax, stdout);
                                        /* convert file */
                pr2ra(head.ras_type, head.ras_length/ymax - xmax*3);
        } 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 + (xmax&1);
                head.ras_height = ymax;
                head.ras_depth = 24;
                head.ras_length = head.ras_width*head.ras_height*3;
                head.ras_maptype = RMT_NONE;
                head.ras_maplength = 0;
                fwrite((char *)&head, sizeof(head), 1, stdout);
                                        /* convert file */
                ra2pr(head.ras_type, head.ras_length/ymax - xmax*3);
        }
        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, pad)          /* convert 24-bit scanlines to Radiance picture */
int     rf;
int     pad;
{
        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);
                        }
                for (x = pad; x--; 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((void *)scanout);
}


ra2pr(rf, pad)          /* convert Radiance scanlines to 24-bit rasterfile */
int     rf;
int     pad;
{
        int     ord[3];
        COLR    *scanin;
        register int    x;
        int     y;
                                                /* allocate scanline */
        scanin = (COLR *)malloc(xmax*sizeof(COLR));
        if (scanin == NULL)
                quiterr("out of memory in ra2pr");
        if (rf == RT_FORMAT_RGB) {
                ord[0] = RED; ord[1] = GRN; ord[2] = BLU;
        } else {
                ord[0] = BLU; ord[1] = GRN; ord[2] = RED;
        }
                                                /* 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);
                        }
                for (x = 0; x < pad; x++)
                        putc(scanin[xmax-1][ord[x%3]], stdout);
                if (ferror(stdout))
                        quiterr("error writing rasterfile");
        }
                                                /* free scanline */
        free((void *)scanin);
}
Revision:	2.10
Committed:	Thu Jun 5 19:29:34 2003 UTC (20 years, 11 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.9:	+5 -15 lines
Log Message:	Macros for setting binary file mode. Replacing MSDOS by _WIN32.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.10	static const char RCSid[] = "$Id: ra_pr24.c,v 2.9 2003/02/22 02:07:28 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* program to convert between RADIANCE and 24-bit rasterfiles.
6			*/
7
8			#include <stdio.h>
9	greg	2.9	#include <time.h>
10	greg	2.5	#include <math.h>
11
12	schorsch	2.10	#include "platform.h"
13	greg	1.1	#include "rasterfile.h"
14			#include "color.h"
15	greg	1.11	#include "resolu.h"
16	greg	1.1
17	greg	2.6	double gamcor = 2.2; /* gamma correction */
18	greg	1.1
19	greg	1.7	int bradj = 0; /* brightness adjustment */
20
21	greg	1.1	char *progname;
22
23			int xmax, ymax;
24
25
26			main(argc, argv)
27			int argc;
28			char *argv[];
29			{
30			struct rasterfile head;
31			int reverse = 0;
32			int i;
33	schorsch	2.10	SET_DEFAULT_BINARY();
34			SET_FILE_BINARY(stdin);
35			SET_FILE_BINARY(stdout);
36	greg	1.1	progname = argv[0];
37
38	greg	1.9	head.ras_type = RT_STANDARD;
39	greg	1.1	for (i = 1; i < argc; i++)
40			if (argv[i][0] == '-')
41			switch (argv[i][1]) {
42			case 'g':
43	greg	2.6	gamcor = atof(argv[++i]);
44	greg	1.1	break;
45	greg	1.7	case 'e':
46			if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
47			goto userr;
48			bradj = atoi(argv[++i]);
49			break;
50	greg	1.1	case 'r':
51	greg	1.9	if (!strcmp(argv[i], "-rgb"))
52			head.ras_type = RT_FORMAT_RGB;
53			else
54			reverse = 1;
55	greg	1.1	break;
56			default:
57			goto userr;
58			}
59			else
60			break;
61
62			if (i < argc-2)
63			goto userr;
64			if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
65			fprintf(stderr, "%s: can't open input \"%s\"\n",
66			progname, argv[i]);
67			exit(1);
68			}
69			if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
70	greg	2.7	fprintf(stderr, "%s: can't open output \"%s\"\n",
71	greg	1.1	progname, argv[i+1]);
72			exit(1);
73			}
74	greg	2.6	setcolrgam(gamcor);
75	greg	1.1	if (reverse) {
76			/* get header */
77			if (fread((char *)&head, sizeof(head), 1, stdin) != 1)
78			quiterr("missing header");
79			if (head.ras_magic != RAS_MAGIC)
80			quiterr("bad raster format");
81			xmax = head.ras_width;
82			ymax = head.ras_height;
83	greg	1.6	if ((head.ras_type != RT_STANDARD
84			&& head.ras_type != RT_FORMAT_RGB)
85			\|\| head.ras_maptype != RMT_NONE
86			\|\| head.ras_depth != 24)
87	greg	1.1	quiterr("incompatible format");
88			/* put header */
89	greg	2.8	newheader("RADIANCE", stdout);
90	greg	1.1	printargs(i, argv, stdout);
91	greg	1.5	fputformat(COLRFMT, stdout);
92	greg	1.1	putchar('\n');
93	greg	1.11	fprtresolu(xmax, ymax, stdout);
94	greg	1.1	/* convert file */
95	greg	2.4	pr2ra(head.ras_type, head.ras_length/ymax - xmax*3);
96	greg	1.1	} else {
97	greg	1.5	/* get header info. */
98			if (checkheader(stdin, COLRFMT, NULL) < 0 \|\|
99	greg	1.11	fgetresolu(&xmax, &ymax, stdin) < 0)
100	greg	1.5	quiterr("bad picture format");
101	greg	1.1	/* write rasterfile header */
102			head.ras_magic = RAS_MAGIC;
103	greg	2.4	head.ras_width = xmax + (xmax&1);
104	greg	1.1	head.ras_height = ymax;
105			head.ras_depth = 24;
106	greg	2.4	head.ras_length = head.ras_widthhead.ras_height3;
107	greg	1.1	head.ras_maptype = RMT_NONE;
108			head.ras_maplength = 0;
109			fwrite((char *)&head, sizeof(head), 1, stdout);
110			/* convert file */
111	greg	2.4	ra2pr(head.ras_type, head.ras_length/ymax - xmax*3);
112	greg	1.1	}
113			exit(0);
114			userr:
115	greg	1.7	fprintf(stderr, "Usage: %s [-r][-g gamma][-e +/-stops] [input [output]]\n",
116	greg	1.1	progname);
117			exit(1);
118			}
119
120
121			quiterr(err) /* print message and exit */
122			char *err;
123			{
124			if (err != NULL) {
125			fprintf(stderr, "%s: %s\n", progname, err);
126			exit(1);
127			}
128			exit(0);
129			}
130
131
132	greg	2.4	pr2ra(rf, pad) /* convert 24-bit scanlines to Radiance picture */
133	greg	1.6	int rf;
134	greg	2.4	int pad;
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	2.4	for (x = pad; x--; getc(stdin));
158	greg	1.3	if (feof(stdin) \|\| ferror(stdin))
159			quiterr("error reading rasterfile");
160			gambs_colrs(scanout, xmax);
161	greg	1.7	if (bradj)
162			shiftcolrs(scanout, xmax, bradj);
163	greg	1.3	if (fwritecolrs(scanout, xmax, stdout) < 0)
164	greg	1.1	quiterr("error writing Radiance picture");
165			}
166			/* free scanline */
167	greg	2.9	free((void *)scanout);
168	greg	1.1	}
169
170
171	greg	2.4	ra2pr(rf, pad) /* convert Radiance scanlines to 24-bit rasterfile */
172			int rf;
173			int pad;
174	greg	1.1	{
175	greg	2.4	int ord[3];
176	greg	1.3	COLR *scanin;
177	greg	1.1	register int x;
178			int y;
179			/* allocate scanline */
180	greg	1.3	scanin = (COLR )malloc(xmaxsizeof(COLR));
181	greg	1.1	if (scanin == NULL)
182	greg	1.8	quiterr("out of memory in ra2pr");
183	greg	2.4	if (rf == RT_FORMAT_RGB) {
184			ord[0] = RED; ord[1] = GRN; ord[2] = BLU;
185			} else {
186			ord[0] = BLU; ord[1] = GRN; ord[2] = RED;
187			}
188	greg	1.1	/* convert image */
189			for (y = ymax-1; y >= 0; y--) {
190	greg	1.3	if (freadcolrs(scanin, xmax, stdin) < 0)
191	greg	1.1	quiterr("error reading Radiance picture");
192	greg	1.7	if (bradj)
193			shiftcolrs(scanin, xmax, bradj);
194	greg	1.3	colrs_gambs(scanin, xmax);
195	greg	1.9	if (rf == RT_FORMAT_RGB)
196			for (x = 0; x < xmax; x++) {
197			putc(scanin[x][RED], stdout);
198			putc(scanin[x][GRN], stdout);
199			putc(scanin[x][BLU], stdout);
200			}
201			else
202			for (x = 0; x < xmax; x++) {
203			putc(scanin[x][BLU], stdout);
204			putc(scanin[x][GRN], stdout);
205			putc(scanin[x][RED], stdout);
206			}
207	greg	2.4	for (x = 0; x < pad; x++)
208			putc(scanin[xmax-1][ord[x%3]], stdout);
209	greg	1.1	if (ferror(stdout))
210			quiterr("error writing rasterfile");
211			}
212			/* free scanline */
213	greg	2.9	free((void *)scanin);
214	greg	1.1	}