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"

#include  "resolu.h"

#define  MAXFILE        64

                                        /* 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  labelht = 24;                      /* label height */

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;

FILE  *popen(), *lblopen();


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[];
{
        int  ncolumns = 0;
        int  autolabel = 0;
        int  curcol = 0, x0 = 0, curx = 0, cury = 0, spacing = 0;
        char  *thislabel;
        int  an;

        progname = argv[0];

        for (an = 1; an < argc && argv[an][0] == '-'; an++)
                switch (argv[an][1]) {
                case 'x':
                        xsiz = atoi(argv[++an]);
                        break;
                case 'y':
                        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 's':
                        spacing = atoi(argv[++an]);
                        break;
                case 'o':
                        curx = x0 = atoi(argv[++an]);
                        cury = atoi(argv[++an]);
                        break;
                case 'l':
                        switch (argv[an][2]) {
                        case 'a':
                                autolabel++;
                                break;
                        case 'h':
                                labelht = atoi(argv[++an]);
                                break;
                        case '\0':
                                goto dofiles;
                        default:
                                goto userr;
                        }
                        break;
                case '\0':
                case 't':
                        goto dofiles;
                default:
                        goto userr;
                }
dofiles:
        for (nfile = 0; an < argc; nfile++) {
                if (nfile >= MAXFILE)
                        goto toomany;
                thislabel = NULL;
                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 'l':
                                if (strcmp(argv[an], "-l"))
                                        goto userr;
                                thislabel = argv[an+1];
                                an += 2;
                                break;
                        case '\0':
                                if (argv[an][0] == '-')
                                        goto getfile;
                                goto userr;
                        default:
                                goto userr;
                        }
getfile:
                if (argc-an < (ncolumns ? 1 : 3))
                        goto userr;
                if (autolabel && thislabel == NULL)
                        thislabel = argv[an];
                if (!strcmp(argv[an], "-")) {
                        input[nfile].name = "<stdin>";
                        input[nfile].fp = stdin;
                } else {
                        if (argv[an][0] == '!') {
                                input[nfile].name = "<Command>";
                                input[nfile].fp = popen(argv[an]+1, "r");
                        } else {
                                input[nfile].name = argv[an];
                                input[nfile].fp = fopen(argv[an], "r");
                        }
                        if (input[nfile].fp == 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) < 0) {
                        fprintf(stderr, "%s: bad picture size\n",
                                        input[nfile].name);
                        quit(1);
                }
                if (ncolumns > 0) {
                        if (curcol >= ncolumns) {
                                cury = ymax + spacing;
                                curx = x0;
                                curcol = 0;
                        }
                        input[nfile].xloc = curx;
                        input[nfile].yloc = cury;
                        curx += input[nfile].xres + spacing;
                        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 (thislabel != NULL) {
                        if (++nfile >= MAXFILE)
                                goto toomany;
                        input[nfile].name = "<Label>";
                        input[nfile].hasmin = input[nfile].hasmax = 0;
                        input[nfile].xres = input[nfile-1].xres;
                        input[nfile].yres = labelht;
                        if ((input[nfile].fp = lblopen(thislabel,
                                        &input[nfile].xres,
                                        &input[nfile].yres)) == NULL)
                                goto labelerr;
                        input[nfile].xloc = input[nfile-1].xloc;
                        input[nfile].yloc = input[nfile-1].yloc +
                                        input[nfile-1].yres-input[nfile].yres;
                }
        }
        if (xsiz <= 0)
                xsiz = xmax;
        else if (xsiz > xmax)
                xmax = xsiz;
        if (ysiz <= 0)
                ysiz = ymax;
        else if (ysiz > ymax)
                ymax = ysiz;
                                        /* add new header info. */
        printargs(argc, argv, stdout);
        fputformat(COLRFMT, stdout);
        putchar('\n');
        fprtresolu(xsiz, ysiz, stdout);

        compos();
        
        quit(0);
userr:
        fprintf(stderr,
        "Usage: %s [-x xr][-y yr][-b r g b][-a n][-s p][-o x0 y0][-la][-lh h] ",
                        progname);
        fprintf(stderr, "[-t min1][+t max1][-l lab] pic1 x1 y1 ..\n");
        quit(1);
toomany:
        fprintf(stderr, "%s: only %d files and labels allowed\n",
                        progname, MAXFILE);
        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);
}


FILE *
lblopen(s, xp, yp)              /* open pipe to label generator */
char  *s;
int  *xp, *yp;
{
        char  com[128];
        FILE  *fp;

        sprintf(com, "psign -s -.15 -a 2 -x %d -y %d '%.90s'", *xp, *yp, s);
        if ((fp = popen(com, "r")) == NULL)
                return(NULL);
        if (checkheader(fp, COLRFMT, NULL) < 0)
                goto err;
        if (fgetresolu(xp, yp, fp) < 0)
                goto err;
        return(fp);
err:
        pclose(fp);
        return(NULL);
}


#ifdef  NIX

quit(code)
int  code;
{
        exit(code);
}

#else

#include  <signal.h>

quit(code)              /* exit gracefully */
int  code;
{
        int  status;

        if (code) {             /* abnormal exit -- kill children */
                signal(SIGPIPE, SIG_IGN);
                kill(0, SIGPIPE);
        }
                                /* reap any children */
        while (wait(&status) != -1)
                if (code == 0)
                        code = status>>8 & 0xff;
        exit(code);
}

#endif
Revision:	2.12
Committed:	Thu Aug 13 10:49:04 1992 UTC (31 years, 8 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.11:	+22 -4 lines
Log Message:	improved reaping of child processes
#	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	greg	1.10	#include "resolu.h"
18	greg	1.1
19	greg	2.8	#define MAXFILE 64
20	greg	1.1
21			/* output picture size */
22			int xsiz = 0;
23			int ysiz = 0;
24			/* input dimensions */
25			int xmin = 0;
26			int ymin = 0;
27			int xmax = 0;
28			int ymax = 0;
29
30			COLR bgcolr = BLKCOLR; /* background color */
31
32	greg	1.9	int labelht = 24; /* label height */
33
34	greg	1.1	int checkthresh = 0; /* check threshold value */
35
36			char *progname;
37
38			struct {
39	greg	1.7	char name; / file or command name */
40	greg	1.1	FILE fp; / stream pointer */
41			int xres, yres; /* picture size */
42			int xloc, yloc; /* anchor point */
43			int hasmin, hasmax; /* has threshold values */
44			COLR thmin, thmax; /* thresholds */
45			} input[MAXFILE]; /* our input files */
46
47			int nfile; /* number of files */
48
49	greg	1.6	int wrongformat = 0;
50	greg	1.1
51	greg	1.9	FILE popen(), lblopen();
52	greg	1.6
53	greg	1.7
54	greg	1.1	tabputs(s) /* print line preceded by a tab */
55			char *s;
56			{
57	greg	1.6	char fmt[32];
58
59			if (isformat(s)) {
60			formatval(fmt, s);
61			wrongformat = strcmp(fmt, COLRFMT);
62			} else {
63			putc('\t', stdout);
64			fputs(s, stdout);
65			}
66	greg	1.1	}
67
68
69			main(argc, argv)
70			int argc;
71			char *argv[];
72			{
73	greg	1.7	int ncolumns = 0;
74	greg	1.9	int autolabel = 0;
75	greg	2.11	int curcol = 0, x0 = 0, curx = 0, cury = 0, spacing = 0;
76	greg	1.9	char *thislabel;
77	greg	1.1	int an;
78
79			progname = argv[0];
80
81			for (an = 1; an < argc && argv[an][0] == '-'; an++)
82			switch (argv[an][1]) {
83			case 'x':
84	greg	2.11	xsiz = atoi(argv[++an]);
85	greg	1.1	break;
86			case 'y':
87	greg	2.11	ysiz = atoi(argv[++an]);
88	greg	1.1	break;
89			case 'b':
90			setcolr(bgcolr, atof(argv[an+1]),
91			atof(argv[an+2]),
92			atof(argv[an+3]));
93			an += 3;
94			break;
95	greg	1.7	case 'a':
96			ncolumns = atoi(argv[++an]);
97			break;
98	greg	2.11	case 's':
99			spacing = atoi(argv[++an]);
100			break;
101			case 'o':
102			curx = x0 = atoi(argv[++an]);
103			cury = atoi(argv[++an]);
104			break;
105	greg	1.7	case 'l':
106	greg	1.9	switch (argv[an][2]) {
107			case 'a':
108			autolabel++;
109			break;
110			case 'h':
111			labelht = atoi(argv[++an]);
112			break;
113			case '\0':
114			goto dofiles;
115			default:
116			goto userr;
117			}
118	greg	1.7	break;
119	greg	1.1	case '\0':
120			case 't':
121			goto dofiles;
122			default:
123			goto userr;
124			}
125			dofiles:
126			for (nfile = 0; an < argc; nfile++) {
127	greg	1.9	if (nfile >= MAXFILE)
128			goto toomany;
129	greg	2.6	thislabel = NULL;
130	greg	1.1	input[nfile].hasmin = input[nfile].hasmax = 0;
131			while (an < argc && (argv[an][0] == '-' \|\| argv[an][0] == '+'))
132			switch (argv[an][1]) {
133			case 't':
134			checkthresh = 1;
135			if (argv[an][0] == '-') {
136			input[nfile].hasmin = 1;
137			setcolr(input[nfile].thmin,
138			atof(argv[an+1]),
139			atof(argv[an+1]),
140			atof(argv[an+1]));
141			} else {
142			input[nfile].hasmax = 1;
143			setcolr(input[nfile].thmax,
144			atof(argv[an+1]),
145			atof(argv[an+1]),
146			atof(argv[an+1]));
147			}
148			an += 2;
149			break;
150	greg	1.9	case 'l':
151			if (strcmp(argv[an], "-l"))
152			goto userr;
153	greg	2.3	thislabel = argv[an+1];
154			an += 2;
155	greg	1.9	break;
156	greg	1.1	case '\0':
157			if (argv[an][0] == '-')
158			goto getfile;
159	greg	1.9	goto userr;
160	greg	1.1	default:
161			goto userr;
162			}
163			getfile:
164	greg	1.7	if (argc-an < (ncolumns ? 1 : 3))
165	greg	1.1	goto userr;
166	greg	2.6	if (autolabel && thislabel == NULL)
167			thislabel = argv[an];
168	greg	1.1	if (!strcmp(argv[an], "-")) {
169			input[nfile].name = "<stdin>";
170			input[nfile].fp = stdin;
171			} else {
172	greg	2.4	if (argv[an][0] == '!') {
173			input[nfile].name = "<Command>";
174			input[nfile].fp = popen(argv[an]+1, "r");
175			} else {
176			input[nfile].name = argv[an];
177			input[nfile].fp = fopen(argv[an], "r");
178			}
179			if (input[nfile].fp == NULL) {
180	greg	1.5	perror(argv[an]);
181	greg	1.1	quit(1);
182			}
183			}
184			an++;
185			/* get header */
186			printf("%s:\n", input[nfile].name);
187	greg	1.6	getheader(input[nfile].fp, tabputs, NULL);
188			if (wrongformat) {
189			fprintf(stderr, "%s: not a Radiance picture\n",
190			input[nfile].name);
191			quit(1);
192			}
193	greg	1.1	/* get picture size */
194	greg	1.4	if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
195	greg	1.10	input[nfile].fp) < 0) {
196	greg	1.1	fprintf(stderr, "%s: bad picture size\n",
197			input[nfile].name);
198			quit(1);
199			}
200	greg	1.7	if (ncolumns > 0) {
201			if (curcol >= ncolumns) {
202	greg	2.11	cury = ymax + spacing;
203			curx = x0;
204	greg	1.7	curcol = 0;
205			}
206			input[nfile].xloc = curx;
207			input[nfile].yloc = cury;
208	greg	2.11	curx += input[nfile].xres + spacing;
209	greg	1.7	curcol++;
210			} else {
211			input[nfile].xloc = atoi(argv[an++]);
212			input[nfile].yloc = atoi(argv[an++]);
213			}
214	greg	1.1	if (input[nfile].xloc < xmin)
215			xmin = input[nfile].xloc;
216			if (input[nfile].yloc < ymin)
217			ymin = input[nfile].yloc;
218			if (input[nfile].xloc+input[nfile].xres > xmax)
219			xmax = input[nfile].xloc+input[nfile].xres;
220			if (input[nfile].yloc+input[nfile].yres > ymax)
221			ymax = input[nfile].yloc+input[nfile].yres;
222	greg	1.9	if (thislabel != NULL) {
223			if (++nfile >= MAXFILE)
224			goto toomany;
225			input[nfile].name = "<Label>";
226			input[nfile].hasmin = input[nfile].hasmax = 0;
227	greg	2.7	input[nfile].xres = input[nfile-1].xres;
228			input[nfile].yres = labelht;
229	greg	1.9	if ((input[nfile].fp = lblopen(thislabel,
230			&input[nfile].xres,
231			&input[nfile].yres)) == NULL)
232	greg	1.7	goto labelerr;
233			input[nfile].xloc = input[nfile-1].xloc;
234			input[nfile].yloc = input[nfile-1].yloc +
235	greg	1.9	input[nfile-1].yres-input[nfile].yres;
236	greg	1.7	}
237	greg	1.1	}
238			if (xsiz <= 0)
239			xsiz = xmax;
240	greg	2.11	else if (xsiz > xmax)
241			xmax = xsiz;
242	greg	1.1	if (ysiz <= 0)
243			ysiz = ymax;
244	greg	2.11	else if (ysiz > ymax)
245			ymax = ysiz;
246	greg	1.1	/* add new header info. */
247			printargs(argc, argv, stdout);
248	greg	1.6	fputformat(COLRFMT, stdout);
249	greg	1.10	putchar('\n');
250			fprtresolu(xsiz, ysiz, stdout);
251	greg	1.1
252			compos();
253
254			quit(0);
255			userr:
256	greg	2.11	fprintf(stderr,
257			"Usage: %s [-x xr][-y yr][-b r g b][-a n][-s p][-o x0 y0][-la][-lh h] ",
258	greg	1.8	progname);
259	greg	1.9	fprintf(stderr, "[-t min1][+t max1][-l lab] pic1 x1 y1 ..\n");
260	greg	1.7	quit(1);
261	greg	1.9	toomany:
262			fprintf(stderr, "%s: only %d files and labels allowed\n",
263			progname, MAXFILE);
264			quit(1);
265	greg	1.7	labelerr:
266			fprintf(stderr, "%s: error opening label\n", progname);
267	greg	1.1	quit(1);
268			}
269
270
271			compos() /* composite pictures */
272			{
273			COLR scanin, scanout;
274			int y;
275			register int x, i;
276
277	greg	1.3	scanin = (COLR )malloc((xmax-xmin)sizeof(COLR));
278	greg	1.1	if (scanin == NULL)
279			goto memerr;
280			scanin -= xmin;
281			if (checkthresh) {
282			scanout = (COLR )malloc(xsizsizeof(COLR));
283			if (scanout == NULL)
284			goto memerr;
285			} else
286			scanout = scanin;
287			for (y = ymax-1; y >= 0; y--) {
288			for (x = 0; x < xsiz; x++)
289			copycolr(scanout[x], bgcolr);
290			for (i = 0; i < nfile; i++) {
291			if (input[i].yloc > y \|\|
292			input[i].yloc+input[i].yres <= y)
293			continue;
294			if (freadcolrs(scanin+input[i].xloc,
295			input[i].xres, input[i].fp) < 0) {
296	greg	1.2	fprintf(stderr, "%s: read error (y==%d)\n",
297			input[i].name,
298			y-input[i].yloc);
299	greg	1.1	quit(1);
300			}
301			if (y >= ysiz)
302			continue;
303			if (checkthresh) {
304			x = input[i].xloc+input[i].xres;
305			if (x > xsiz)
306			x = xsiz;
307			for (x--; x >= 0 && x >= input[i].xloc; x--) {
308			if (input[i].hasmin &&
309			cmpcolr(scanin[x], input[i].thmin) <= 0)
310			continue;
311			if (input[i].hasmax &&
312			cmpcolr(scanin[x], input[i].thmax) >= 0)
313			continue;
314			copycolr(scanout[x], scanin[x]);
315			}
316			}
317			}
318			if (y >= ysiz)
319			continue;
320			if (fwritecolrs(scanout, xsiz, stdout) < 0) {
321	greg	1.5	perror(progname);
322	greg	1.1	quit(1);
323			}
324			}
325			return;
326			memerr:
327	greg	1.5	perror(progname);
328	greg	1.1	quit(1);
329			}
330
331
332			int
333			cmpcolr(c1, c2) /* compare two colr's (improvisation) */
334			register COLR c1, c2;
335			{
336			register int i, j;
337
338			j = 4; /* check exponents first! */
339			while (j--)
340			if (i = c1[j] - c2[j])
341			return(i);
342			return(0);
343	greg	1.9	}
344
345
346			FILE *
347			lblopen(s, xp, yp) /* open pipe to label generator */
348			char *s;
349			int xp, yp;
350			{
351			char com[128];
352			FILE *fp;
353
354	greg	2.7	sprintf(com, "psign -s -.15 -a 2 -x %d -y %d '%.90s'", xp, yp, s);
355	greg	1.9	if ((fp = popen(com, "r")) == NULL)
356			return(NULL);
357			if (checkheader(fp, COLRFMT, NULL) < 0)
358			goto err;
359	greg	1.10	if (fgetresolu(xp, yp, fp) < 0)
360	greg	1.9	goto err;
361			return(fp);
362			err:
363			pclose(fp);
364			return(NULL);
365	greg	1.1	}
366
367
368	greg	2.12	#ifdef NIX
369
370			quit(code)
371			int code;
372			{
373			exit(code);
374			}
375
376			#else
377
378			#include <signal.h>
379
380	greg	1.1	quit(code) /* exit gracefully */
381			int code;
382			{
383	greg	2.9	int status;
384
385	greg	2.12	if (code) { /* abnormal exit -- kill children */
386			signal(SIGPIPE, SIG_IGN);
387			kill(0, SIGPIPE);
388			}
389			/* reap any children */
390			while (wait(&status) != -1)
391			if (code == 0)
392			code = status>>8 & 0xff;
393	greg	1.1	exit(code);
394			}
395	greg	2.12
396			#endif