src/px/pcompos.c

/* Copyright (c) 1991 Regents of the University of California */

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

/*
 *  pcompos.c - program to composite pictures.
 *
 *     6/30/87
 */

#include  <stdio.h>

#include  "color.h"


#define  MAXFILE        32

#define  SIGNHT         24
#define  setpscom(b,n)  sprintf(b, "psign -h %d '%.30s'|pfilt -1 -x /2 -y /2",\
                                2*SIGNHT, n)

                                        /* output picture size */
int  xsiz = 0;
int  ysiz = 0;
                                        /* input dimensions */
int  xmin = 0;
int  ymin = 0;
int  xmax = 0;
int  ymax = 0;

COLR  bgcolr = BLKCOLR;                 /* background color */

int  checkthresh = 0;                   /* check threshold value */

char  *progname;

struct {
        char  *name;                    /* file or command name */
        FILE  *fp;                      /* stream pointer */
        int  xres, yres;                /* picture size */
        int  xloc, yloc;                /* anchor point */
        int  hasmin, hasmax;            /* has threshold values */
        COLR  thmin, thmax;             /* thresholds */
} input[MAXFILE];               /* our input files */

int  nfile;                     /* number of files */

int  wrongformat = 0;

char  tmpbuf[128];

FILE  *popen();


tabputs(s)                      /* print line preceded by a tab */
char  *s;
{
        char  fmt[32];

        if (isformat(s)) {
                formatval(fmt, s);
                wrongformat = strcmp(fmt, COLRFMT);
        } else {
                putc('\t', stdout);
                fputs(s, stdout);
        }
}


main(argc, argv)
int  argc;
char  *argv[];
{
        double  atof();
        int  ncolumns = 0;
        int  dolabels = 0;
        int  curcol = 0, curx = 0, cury = 0;
        int  an;

        progname = argv[0];

        for (an = 1; an < argc && argv[an][0] == '-'; an++)
                switch (argv[an][1]) {
                case 'x':
                        xmax = xsiz = atoi(argv[++an]);
                        break;
                case 'y':
                        ymax = ysiz = atoi(argv[++an]);
                        break;
                case 'b':
                        setcolr(bgcolr, atof(argv[an+1]),
                                        atof(argv[an+2]),
                                        atof(argv[an+3]));
                        an += 3;
                        break;
                case 'a':
                        ncolumns = atoi(argv[++an]);
                        break;
                case 'l':
                        dolabels++;
                        break;
                case '\0':
                case 't':
                        goto dofiles;
                default:
                        goto userr;
                }
dofiles:
        for (nfile = 0; an < argc; nfile++) {
                if (dolabels) {
                        if (nfile >= MAXFILE-1) {
                                fprintf(stderr,
                                "%s: only %d files allowed with labels\n",
                                        progname, MAXFILE/2);
                                quit(1);
                        }
                } else {
                        if (nfile >= MAXFILE) {
                                fprintf(stderr, "%s: only %d files allowed\n",
                                                progname, MAXFILE);
                                quit(1);
                        }
                }
                input[nfile].hasmin = input[nfile].hasmax = 0;
                while (an < argc && (argv[an][0] == '-' || argv[an][0] == '+'))
                        switch (argv[an][1]) {
                        case 't':
                                checkthresh = 1;
                                if (argv[an][0] == '-') {
                                        input[nfile].hasmin = 1;
                                        setcolr(input[nfile].thmin,
                                                        atof(argv[an+1]),
                                                        atof(argv[an+1]),
                                                        atof(argv[an+1]));
                                } else {
                                        input[nfile].hasmax = 1;
                                        setcolr(input[nfile].thmax,
                                                        atof(argv[an+1]),
                                                        atof(argv[an+1]),
                                                        atof(argv[an+1]));
                                }
                                an += 2;
                                break;
                        case '\0':
                                if (argv[an][0] == '-')
                                        goto getfile;
                        /* fall through */
                        default:
                                goto userr;
                        }
getfile:
                if (argc-an < (ncolumns ? 1 : 3))
                        goto userr;
                if (!strcmp(argv[an], "-")) {
                        input[nfile].name = "<stdin>";
                        input[nfile].fp = stdin;
                } else {
                        input[nfile].name = argv[an];
                        if ((input[nfile].fp = argv[an][0] == '!' ?
                                        popen(argv[an]+1, "r") :
                                        fopen(argv[an], "r")) == NULL) {
                                perror(argv[an]);
                                quit(1);
                        }
                }
                an++;
                                                /* get header */
                printf("%s:\n", input[nfile].name);
                getheader(input[nfile].fp, tabputs, NULL);
                if (wrongformat) {
                        fprintf(stderr, "%s: not a Radiance picture\n",
                                        input[nfile].name);
                        quit(1);
                }
                                                /* get picture size */
                if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
                                input[nfile].fp) != (YMAJOR|YDECR)) {
                        fprintf(stderr, "%s: bad picture size\n",
                                        input[nfile].name);
                        quit(1);
                }
                if (ncolumns > 0) {
                        if (curcol >= ncolumns) {
                                cury = ymax;
                                curx = 0;
                                curcol = 0;
                        }
                        input[nfile].xloc = curx;
                        input[nfile].yloc = cury;
                        curx += input[nfile].xres;
                        curcol++;
                } else {
                        input[nfile].xloc = atoi(argv[an++]);
                        input[nfile].yloc = atoi(argv[an++]);
                }
                if (input[nfile].xloc < xmin)
                        xmin = input[nfile].xloc;
                if (input[nfile].yloc < ymin)
                        ymin = input[nfile].yloc;
                if (input[nfile].xloc+input[nfile].xres > xmax)
                        xmax = input[nfile].xloc+input[nfile].xres;
                if (input[nfile].yloc+input[nfile].yres > ymax)
                        ymax = input[nfile].yloc+input[nfile].yres;
                if (dolabels) {
                        input[++nfile].name = "<Label>";
                        setpscom(tmpbuf, input[nfile-1].name);
                        if ((input[nfile].fp = popen(tmpbuf, "r")) == NULL)
                                goto labelerr;
                        if (checkheader(input[nfile].fp, COLRFMT, NULL) < 0)
                                goto labelerr;
                        if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
                                        input[nfile].fp) != (YMAJOR|YDECR))
                                goto labelerr;
                        input[nfile].xloc = input[nfile-1].xloc;
                        input[nfile].yloc = input[nfile-1].yloc +
                                        input[nfile-1].yres - SIGNHT;
                        input[nfile].hasmin = input[nfile].hasmax = 0;
                }
        }
        if (xsiz <= 0)
                xsiz = xmax;
        if (ysiz <= 0)
                ysiz = ymax;
                                        /* add new header info. */
        printargs(argc, argv, stdout);
        fputformat(COLRFMT, stdout);
        printf("\n-Y %d +X %d\n", ysiz, xsiz);

        compos();
        
        quit(0);
userr:
        fprintf(stderr, "Usage: %s [-x xr][-y yr][-b r g b][-a n][-l] ",
                        progname);
        fprintf(stderr, "[-t min1][+t max1] pic1 x1 y1 ..\n");
        quit(1);
labelerr:
        fprintf(stderr, "%s: error opening label\n", progname);
        quit(1);
}


compos()                                /* composite pictures */
{
        COLR  *scanin, *scanout;
        int  y;
        register int  x, i;

        scanin = (COLR *)malloc((xmax-xmin)*sizeof(COLR));
        if (scanin == NULL)
                goto memerr;
        scanin -= xmin;
        if (checkthresh) {
                scanout = (COLR *)malloc(xsiz*sizeof(COLR));
                if (scanout == NULL)
                        goto memerr;
        } else
                scanout = scanin;
        for (y = ymax-1; y >= 0; y--) {
                for (x = 0; x < xsiz; x++)
                        copycolr(scanout[x], bgcolr);
                for (i = 0; i < nfile; i++) {
                        if (input[i].yloc > y ||
                                        input[i].yloc+input[i].yres <= y)
                                continue;
                        if (freadcolrs(scanin+input[i].xloc,
                                        input[i].xres, input[i].fp) < 0) {
                                fprintf(stderr, "%s: read error (y==%d)\n",
                                                input[i].name,
                                                y-input[i].yloc);
                                quit(1);
                        }
                        if (y >= ysiz)
                                continue;
                        if (checkthresh) {
                                x = input[i].xloc+input[i].xres;
                                if (x > xsiz)
                                        x = xsiz;
                                for (x--; x >= 0 && x >= input[i].xloc; x--) {
                                        if (input[i].hasmin &&
                                        cmpcolr(scanin[x], input[i].thmin) <= 0)
                                                continue;
                                        if (input[i].hasmax &&
                                        cmpcolr(scanin[x], input[i].thmax) >= 0)
                                                continue;
                                        copycolr(scanout[x], scanin[x]);
                                }
                        }
                }
                if (y >= ysiz)
                        continue;
                if (fwritecolrs(scanout, xsiz, stdout) < 0) {
                        perror(progname);
                        quit(1);
                }
        }
        return;
memerr:
        perror(progname);
        quit(1);
}


int
cmpcolr(c1, c2)                 /* compare two colr's (improvisation) */
register COLR  c1, c2;
{
        register int  i, j;

        j = 4;                          /* check exponents first! */
        while (j--)
                if (i = c1[j] - c2[j])
                        return(i);
        return(0);
}


quit(code)              /* exit gracefully */
int  code;
{
        exit(code);
}
Revision:	1.8
Committed:	Thu May 30 10:33:30 1991 UTC (34 years, 5 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 1.7:	+4 -6 lines
Log Message:	fixed usage message
#	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			* pcompos.c - program to composite pictures.
9			*
10			* 6/30/87
11			*/
12
13			#include <stdio.h>
14
15			#include "color.h"
16
17
18	greg	1.5	#define MAXFILE 32
19	greg	1.1
20	greg	1.7	#define SIGNHT 24
21			#define setpscom(b,n) sprintf(b, "psign -h %d '%.30s'\|pfilt -1 -x /2 -y /2",\
22			2*SIGNHT, n)
23
24	greg	1.1	/* output picture size */
25			int xsiz = 0;
26			int ysiz = 0;
27			/* input dimensions */
28			int xmin = 0;
29			int ymin = 0;
30			int xmax = 0;
31			int ymax = 0;
32
33			COLR bgcolr = BLKCOLR; /* background color */
34
35			int checkthresh = 0; /* check threshold value */
36
37			char *progname;
38
39			struct {
40	greg	1.7	char name; / file or command name */
41	greg	1.1	FILE fp; / stream pointer */
42			int xres, yres; /* picture size */
43			int xloc, yloc; /* anchor point */
44			int hasmin, hasmax; /* has threshold values */
45			COLR thmin, thmax; /* thresholds */
46			} input[MAXFILE]; /* our input files */
47
48			int nfile; /* number of files */
49
50	greg	1.6	int wrongformat = 0;
51	greg	1.1
52	greg	1.7	char tmpbuf[128];
53	greg	1.6
54	greg	1.7	FILE *popen();
55
56
57	greg	1.1	tabputs(s) /* print line preceded by a tab */
58			char *s;
59			{
60	greg	1.6	char fmt[32];
61
62			if (isformat(s)) {
63			formatval(fmt, s);
64			wrongformat = strcmp(fmt, COLRFMT);
65			} else {
66			putc('\t', stdout);
67			fputs(s, stdout);
68			}
69	greg	1.1	}
70
71
72			main(argc, argv)
73			int argc;
74			char *argv[];
75			{
76			double atof();
77	greg	1.7	int ncolumns = 0;
78			int dolabels = 0;
79			int curcol = 0, curx = 0, cury = 0;
80	greg	1.1	int an;
81
82			progname = argv[0];
83
84			for (an = 1; an < argc && argv[an][0] == '-'; an++)
85			switch (argv[an][1]) {
86			case 'x':
87			xmax = xsiz = atoi(argv[++an]);
88			break;
89			case 'y':
90			ymax = ysiz = atoi(argv[++an]);
91			break;
92			case 'b':
93			setcolr(bgcolr, atof(argv[an+1]),
94			atof(argv[an+2]),
95			atof(argv[an+3]));
96			an += 3;
97			break;
98	greg	1.7	case 'a':
99			ncolumns = atoi(argv[++an]);
100			break;
101			case 'l':
102			dolabels++;
103			break;
104	greg	1.1	case '\0':
105			case 't':
106			goto dofiles;
107			default:
108			goto userr;
109			}
110			dofiles:
111			for (nfile = 0; an < argc; nfile++) {
112	greg	1.7	if (dolabels) {
113			if (nfile >= MAXFILE-1) {
114			fprintf(stderr,
115			"%s: only %d files allowed with labels\n",
116			progname, MAXFILE/2);
117	greg	1.8	quit(1);
118	greg	1.7	}
119			} else {
120			if (nfile >= MAXFILE) {
121			fprintf(stderr, "%s: only %d files allowed\n",
122			progname, MAXFILE);
123			quit(1);
124			}
125			}
126	greg	1.1	input[nfile].hasmin = input[nfile].hasmax = 0;
127			while (an < argc && (argv[an][0] == '-' \|\| argv[an][0] == '+'))
128			switch (argv[an][1]) {
129			case 't':
130			checkthresh = 1;
131			if (argv[an][0] == '-') {
132			input[nfile].hasmin = 1;
133			setcolr(input[nfile].thmin,
134			atof(argv[an+1]),
135			atof(argv[an+1]),
136			atof(argv[an+1]));
137			} else {
138			input[nfile].hasmax = 1;
139			setcolr(input[nfile].thmax,
140			atof(argv[an+1]),
141			atof(argv[an+1]),
142			atof(argv[an+1]));
143			}
144			an += 2;
145			break;
146			case '\0':
147			if (argv[an][0] == '-')
148			goto getfile;
149			/* fall through */
150			default:
151			goto userr;
152			}
153			getfile:
154	greg	1.7	if (argc-an < (ncolumns ? 1 : 3))
155	greg	1.1	goto userr;
156			if (!strcmp(argv[an], "-")) {
157			input[nfile].name = "<stdin>";
158			input[nfile].fp = stdin;
159			} else {
160			input[nfile].name = argv[an];
161	greg	1.7	if ((input[nfile].fp = argv[an][0] == '!' ?
162			popen(argv[an]+1, "r") :
163			fopen(argv[an], "r")) == NULL) {
164	greg	1.5	perror(argv[an]);
165	greg	1.1	quit(1);
166			}
167			}
168			an++;
169			/* get header */
170			printf("%s:\n", input[nfile].name);
171	greg	1.6	getheader(input[nfile].fp, tabputs, NULL);
172			if (wrongformat) {
173			fprintf(stderr, "%s: not a Radiance picture\n",
174			input[nfile].name);
175			quit(1);
176			}
177	greg	1.1	/* get picture size */
178	greg	1.4	if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
179			input[nfile].fp) != (YMAJOR\|YDECR)) {
180	greg	1.1	fprintf(stderr, "%s: bad picture size\n",
181			input[nfile].name);
182			quit(1);
183			}
184	greg	1.7	if (ncolumns > 0) {
185			if (curcol >= ncolumns) {
186			cury = ymax;
187			curx = 0;
188			curcol = 0;
189			}
190			input[nfile].xloc = curx;
191			input[nfile].yloc = cury;
192			curx += input[nfile].xres;
193			curcol++;
194			} else {
195			input[nfile].xloc = atoi(argv[an++]);
196			input[nfile].yloc = atoi(argv[an++]);
197			}
198	greg	1.1	if (input[nfile].xloc < xmin)
199			xmin = input[nfile].xloc;
200			if (input[nfile].yloc < ymin)
201			ymin = input[nfile].yloc;
202			if (input[nfile].xloc+input[nfile].xres > xmax)
203			xmax = input[nfile].xloc+input[nfile].xres;
204			if (input[nfile].yloc+input[nfile].yres > ymax)
205			ymax = input[nfile].yloc+input[nfile].yres;
206	greg	1.7	if (dolabels) {
207			input[++nfile].name = "<Label>";
208			setpscom(tmpbuf, input[nfile-1].name);
209			if ((input[nfile].fp = popen(tmpbuf, "r")) == NULL)
210			goto labelerr;
211			if (checkheader(input[nfile].fp, COLRFMT, NULL) < 0)
212			goto labelerr;
213			if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
214			input[nfile].fp) != (YMAJOR\|YDECR))
215			goto labelerr;
216			input[nfile].xloc = input[nfile-1].xloc;
217			input[nfile].yloc = input[nfile-1].yloc +
218			input[nfile-1].yres - SIGNHT;
219			input[nfile].hasmin = input[nfile].hasmax = 0;
220			}
221	greg	1.1	}
222			if (xsiz <= 0)
223			xsiz = xmax;
224			if (ysiz <= 0)
225			ysiz = ymax;
226			/* add new header info. */
227			printargs(argc, argv, stdout);
228	greg	1.6	fputformat(COLRFMT, stdout);
229	greg	1.1	printf("\n-Y %d +X %d\n", ysiz, xsiz);
230
231			compos();
232
233			quit(0);
234			userr:
235	greg	1.8	fprintf(stderr, "Usage: %s [-x xr][-y yr][-b r g b][-a n][-l] ",
236			progname);
237			fprintf(stderr, "[-t min1][+t max1] pic1 x1 y1 ..\n");
238	greg	1.7	quit(1);
239			labelerr:
240			fprintf(stderr, "%s: error opening label\n", progname);
241	greg	1.1	quit(1);
242			}
243
244
245			compos() /* composite pictures */
246			{
247			COLR scanin, scanout;
248			int y;
249			register int x, i;
250
251	greg	1.3	scanin = (COLR )malloc((xmax-xmin)sizeof(COLR));
252	greg	1.1	if (scanin == NULL)
253			goto memerr;
254			scanin -= xmin;
255			if (checkthresh) {
256			scanout = (COLR )malloc(xsizsizeof(COLR));
257			if (scanout == NULL)
258			goto memerr;
259			} else
260			scanout = scanin;
261			for (y = ymax-1; y >= 0; y--) {
262			for (x = 0; x < xsiz; x++)
263			copycolr(scanout[x], bgcolr);
264			for (i = 0; i < nfile; i++) {
265			if (input[i].yloc > y \|\|
266			input[i].yloc+input[i].yres <= y)
267			continue;
268			if (freadcolrs(scanin+input[i].xloc,
269			input[i].xres, input[i].fp) < 0) {
270	greg	1.2	fprintf(stderr, "%s: read error (y==%d)\n",
271			input[i].name,
272			y-input[i].yloc);
273	greg	1.1	quit(1);
274			}
275			if (y >= ysiz)
276			continue;
277			if (checkthresh) {
278			x = input[i].xloc+input[i].xres;
279			if (x > xsiz)
280			x = xsiz;
281			for (x--; x >= 0 && x >= input[i].xloc; x--) {
282			if (input[i].hasmin &&
283			cmpcolr(scanin[x], input[i].thmin) <= 0)
284			continue;
285			if (input[i].hasmax &&
286			cmpcolr(scanin[x], input[i].thmax) >= 0)
287			continue;
288			copycolr(scanout[x], scanin[x]);
289			}
290			}
291			}
292			if (y >= ysiz)
293			continue;
294			if (fwritecolrs(scanout, xsiz, stdout) < 0) {
295	greg	1.5	perror(progname);
296	greg	1.1	quit(1);
297			}
298			}
299			return;
300			memerr:
301	greg	1.5	perror(progname);
302	greg	1.1	quit(1);
303			}
304
305
306			int
307			cmpcolr(c1, c2) /* compare two colr's (improvisation) */
308			register COLR c1, c2;
309			{
310			register int i, j;
311
312			j = 4; /* check exponents first! */
313			while (j--)
314			if (i = c1[j] - c2[j])
315			return(i);
316			return(0);
317			}
318
319
320			quit(code) /* exit gracefully */
321			int code;
322			{
323			exit(code);
324			}