src/px/ra_pr24.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  program to convert between RADIANCE and 24-bit rasterfiles.
 */

#include  <stdio.h>

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

#include  <time.h>

#include  <math.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;
#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':
                                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:	2.9
Committed:	Sat Feb 22 02:07:28 2003 UTC (22 years, 10 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.8:	+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	2.9	static const char RCSid[] = "$Id$";
3	greg	1.1	#endif
4			/*
5			* program to convert between RADIANCE and 24-bit rasterfiles.
6			*/
7
8			#include <stdio.h>
9
10	greg	2.3	#ifdef MSDOS
11			#include <fcntl.h>
12			#endif
13
14	greg	2.9	#include <time.h>
15
16	greg	2.5	#include <math.h>
17
18	greg	1.1	#include "rasterfile.h"
19
20			#include "color.h"
21
22	greg	1.11	#include "resolu.h"
23	greg	1.1
24	greg	2.6	double gamcor = 2.2; /* gamma correction */
25	greg	1.1
26	greg	1.7	int bradj = 0; /* brightness adjustment */
27
28	greg	1.1	char *progname;
29
30			int xmax, ymax;
31
32
33			main(argc, argv)
34			int argc;
35			char *argv[];
36			{
37			struct rasterfile head;
38			int reverse = 0;
39			int i;
40	greg	2.3	#ifdef MSDOS
41			extern int _fmode;
42			_fmode = O_BINARY;
43			setmode(fileno(stdin), O_BINARY);
44			setmode(fileno(stdout), O_BINARY);
45			#endif
46	greg	1.1	progname = argv[0];
47
48	greg	1.9	head.ras_type = RT_STANDARD;
49	greg	1.1	for (i = 1; i < argc; i++)
50			if (argv[i][0] == '-')
51			switch (argv[i][1]) {
52			case 'g':
53	greg	2.6	gamcor = atof(argv[++i]);
54	greg	1.1	break;
55	greg	1.7	case 'e':
56			if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
57			goto userr;
58			bradj = atoi(argv[++i]);
59			break;
60	greg	1.1	case 'r':
61	greg	1.9	if (!strcmp(argv[i], "-rgb"))
62			head.ras_type = RT_FORMAT_RGB;
63			else
64			reverse = 1;
65	greg	1.1	break;
66			default:
67			goto userr;
68			}
69			else
70			break;
71
72			if (i < argc-2)
73			goto userr;
74			if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
75			fprintf(stderr, "%s: can't open input \"%s\"\n",
76			progname, argv[i]);
77			exit(1);
78			}
79			if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
80	greg	2.7	fprintf(stderr, "%s: can't open output \"%s\"\n",
81	greg	1.1	progname, argv[i+1]);
82			exit(1);
83			}
84	greg	2.6	setcolrgam(gamcor);
85	greg	1.1	if (reverse) {
86			/* get header */
87			if (fread((char *)&head, sizeof(head), 1, stdin) != 1)
88			quiterr("missing header");
89			if (head.ras_magic != RAS_MAGIC)
90			quiterr("bad raster format");
91			xmax = head.ras_width;
92			ymax = head.ras_height;
93	greg	1.6	if ((head.ras_type != RT_STANDARD
94			&& head.ras_type != RT_FORMAT_RGB)
95			\|\| head.ras_maptype != RMT_NONE
96			\|\| head.ras_depth != 24)
97	greg	1.1	quiterr("incompatible format");
98			/* put header */
99	greg	2.8	newheader("RADIANCE", stdout);
100	greg	1.1	printargs(i, argv, stdout);
101	greg	1.5	fputformat(COLRFMT, stdout);
102	greg	1.1	putchar('\n');
103	greg	1.11	fprtresolu(xmax, ymax, stdout);
104	greg	1.1	/* convert file */
105	greg	2.4	pr2ra(head.ras_type, head.ras_length/ymax - xmax*3);
106	greg	1.1	} else {
107	greg	1.5	/* get header info. */
108			if (checkheader(stdin, COLRFMT, NULL) < 0 \|\|
109	greg	1.11	fgetresolu(&xmax, &ymax, stdin) < 0)
110	greg	1.5	quiterr("bad picture format");
111	greg	1.1	/* write rasterfile header */
112			head.ras_magic = RAS_MAGIC;
113	greg	2.4	head.ras_width = xmax + (xmax&1);
114	greg	1.1	head.ras_height = ymax;
115			head.ras_depth = 24;
116	greg	2.4	head.ras_length = head.ras_widthhead.ras_height3;
117	greg	1.1	head.ras_maptype = RMT_NONE;
118			head.ras_maplength = 0;
119			fwrite((char *)&head, sizeof(head), 1, stdout);
120			/* convert file */
121	greg	2.4	ra2pr(head.ras_type, head.ras_length/ymax - xmax*3);
122	greg	1.1	}
123			exit(0);
124			userr:
125	greg	1.7	fprintf(stderr, "Usage: %s [-r][-g gamma][-e +/-stops] [input [output]]\n",
126	greg	1.1	progname);
127			exit(1);
128			}
129
130
131			quiterr(err) /* print message and exit */
132			char *err;
133			{
134			if (err != NULL) {
135			fprintf(stderr, "%s: %s\n", progname, err);
136			exit(1);
137			}
138			exit(0);
139			}
140
141
142	greg	2.4	pr2ra(rf, pad) /* convert 24-bit scanlines to Radiance picture */
143	greg	1.6	int rf;
144	greg	2.4	int pad;
145	greg	1.1	{
146	greg	1.3	COLR *scanout;
147	greg	1.1	register int x;
148			int y;
149			/* allocate scanline */
150	greg	1.3	scanout = (COLR )malloc(xmaxsizeof(COLR));
151	greg	1.1	if (scanout == NULL)
152			quiterr("out of memory in pr2ra");
153			/* convert image */
154			for (y = ymax-1; y >= 0; y--) {
155	greg	1.9	if (rf == RT_FORMAT_RGB)
156			for (x = 0; x < xmax; x++) {
157	greg	1.6	scanout[x][RED] = getc(stdin);
158			scanout[x][GRN] = getc(stdin);
159			scanout[x][BLU] = getc(stdin);
160	greg	1.9	}
161			else
162			for (x = 0; x < xmax; x++) {
163	greg	1.6	scanout[x][BLU] = getc(stdin);
164			scanout[x][GRN] = getc(stdin);
165			scanout[x][RED] = getc(stdin);
166			}
167	greg	2.4	for (x = pad; x--; getc(stdin));
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	greg	2.9	free((void *)scanout);
178	greg	1.1	}
179
180
181	greg	2.4	ra2pr(rf, pad) /* convert Radiance scanlines to 24-bit rasterfile */
182			int rf;
183			int pad;
184	greg	1.1	{
185	greg	2.4	int ord[3];
186	greg	1.3	COLR *scanin;
187	greg	1.1	register int x;
188			int y;
189			/* allocate scanline */
190	greg	1.3	scanin = (COLR )malloc(xmaxsizeof(COLR));
191	greg	1.1	if (scanin == NULL)
192	greg	1.8	quiterr("out of memory in ra2pr");
193	greg	2.4	if (rf == RT_FORMAT_RGB) {
194			ord[0] = RED; ord[1] = GRN; ord[2] = BLU;
195			} else {
196			ord[0] = BLU; ord[1] = GRN; ord[2] = RED;
197			}
198	greg	1.1	/* convert image */
199			for (y = ymax-1; y >= 0; y--) {
200	greg	1.3	if (freadcolrs(scanin, xmax, stdin) < 0)
201	greg	1.1	quiterr("error reading Radiance picture");
202	greg	1.7	if (bradj)
203			shiftcolrs(scanin, xmax, bradj);
204	greg	1.3	colrs_gambs(scanin, xmax);
205	greg	1.9	if (rf == RT_FORMAT_RGB)
206			for (x = 0; x < xmax; x++) {
207			putc(scanin[x][RED], stdout);
208			putc(scanin[x][GRN], stdout);
209			putc(scanin[x][BLU], stdout);
210			}
211			else
212			for (x = 0; x < xmax; x++) {
213			putc(scanin[x][BLU], stdout);
214			putc(scanin[x][GRN], stdout);
215			putc(scanin[x][RED], stdout);
216			}
217	greg	2.4	for (x = 0; x < pad; x++)
218			putc(scanin[xmax-1][ord[x%3]], stdout);
219	greg	1.1	if (ferror(stdout))
220			quiterr("error writing rasterfile");
221			}
222			/* free scanline */
223	greg	2.9	free((void *)scanin);
224	greg	1.1	}