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

                                        /* 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[];
{
        double  atof();
        int  ncolumns = 0;
        int  autolabel = 0;
        int  curcol = 0, curx = 0, cury = 0;
        char  *thislabel;
        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':
                        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;
                if (autolabel)
                        thislabel = argv[an];
                else
                        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];
                                break;
                        case '\0':
                                if (argv[an][0] == '-')
                                        goto getfile;
                                goto userr;
                        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 (thislabel != NULL) {
                        if (++nfile >= MAXFILE)
                                goto toomany;
                        input[nfile].name = "<Label>";
                        input[nfile].hasmin = input[nfile].hasmax = 0;
                        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;
        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][-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 -h %d '%.30s' | pfilt -1 -x /2 -y /2",
                        2*labelht, s);
        if ((fp = popen(com, "r")) == NULL)
                return(NULL);
        if (checkheader(fp, COLRFMT, NULL) < 0)
                goto err;
        if (fgetresolu(xp, yp, fp) != (YMAJOR|YDECR))
                goto err;
        return(fp);
err:
        pclose(fp);
        return(NULL);
}


quit(code)              /* exit gracefully */
int  code;
{
        exit(code);
}
Revision:	1.9
Committed:	Fri May 31 10:21:31 1991 UTC (32 years, 11 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 1.8:	+67 -37 lines
Log Message:	added -lh and -la options and allowed individual label specs
#	Content
1	/* Copyright (c) 1991 Regents of the University of California */
2
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	#define MAXFILE 32
19
20	/* output picture size */
21	int xsiz = 0;
22	int ysiz = 0;
23	/* input dimensions */
24	int xmin = 0;
25	int ymin = 0;
26	int xmax = 0;
27	int ymax = 0;
28
29	COLR bgcolr = BLKCOLR; /* background color */
30
31	int labelht = 24; /* label height */
32
33	int checkthresh = 0; /* check threshold value */
34
35	char *progname;
36
37	struct {
38	char name; / file or command name */
39	FILE fp; / stream pointer */
40	int xres, yres; /* picture size */
41	int xloc, yloc; /* anchor point */
42	int hasmin, hasmax; /* has threshold values */
43	COLR thmin, thmax; /* thresholds */
44	} input[MAXFILE]; /* our input files */
45
46	int nfile; /* number of files */
47
48	int wrongformat = 0;
49
50	FILE popen(), lblopen();
51
52
53	tabputs(s) /* print line preceded by a tab */
54	char *s;
55	{
56	char fmt[32];
57
58	if (isformat(s)) {
59	formatval(fmt, s);
60	wrongformat = strcmp(fmt, COLRFMT);
61	} else {
62	putc('\t', stdout);
63	fputs(s, stdout);
64	}
65	}
66
67
68	main(argc, argv)
69	int argc;
70	char *argv[];
71	{
72	double atof();
73	int ncolumns = 0;
74	int autolabel = 0;
75	int curcol = 0, curx = 0, cury = 0;
76	char *thislabel;
77	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	xmax = xsiz = atoi(argv[++an]);
85	break;
86	case 'y':
87	ymax = ysiz = atoi(argv[++an]);
88	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	case 'a':
96	ncolumns = atoi(argv[++an]);
97	break;
98	case 'l':
99	switch (argv[an][2]) {
100	case 'a':
101	autolabel++;
102	break;
103	case 'h':
104	labelht = atoi(argv[++an]);
105	break;
106	case '\0':
107	goto dofiles;
108	default:
109	goto userr;
110	}
111	break;
112	case '\0':
113	case 't':
114	goto dofiles;
115	default:
116	goto userr;
117	}
118	dofiles:
119	for (nfile = 0; an < argc; nfile++) {
120	if (nfile >= MAXFILE)
121	goto toomany;
122	if (autolabel)
123	thislabel = argv[an];
124	else
125	thislabel = NULL;
126	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 'l':
147	if (strcmp(argv[an], "-l"))
148	goto userr;
149	thislabel = argv[++an];
150	break;
151	case '\0':
152	if (argv[an][0] == '-')
153	goto getfile;
154	goto userr;
155	default:
156	goto userr;
157	}
158	getfile:
159	if (argc-an < (ncolumns ? 1 : 3))
160	goto userr;
161	if (!strcmp(argv[an], "-")) {
162	input[nfile].name = "<stdin>";
163	input[nfile].fp = stdin;
164	} else {
165	input[nfile].name = argv[an];
166	if ((input[nfile].fp = argv[an][0] == '!' ?
167	popen(argv[an]+1, "r") :
168	fopen(argv[an], "r")) == NULL) {
169	perror(argv[an]);
170	quit(1);
171	}
172	}
173	an++;
174	/* get header */
175	printf("%s:\n", input[nfile].name);
176	getheader(input[nfile].fp, tabputs, NULL);
177	if (wrongformat) {
178	fprintf(stderr, "%s: not a Radiance picture\n",
179	input[nfile].name);
180	quit(1);
181	}
182	/* get picture size */
183	if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
184	input[nfile].fp) != (YMAJOR\|YDECR)) {
185	fprintf(stderr, "%s: bad picture size\n",
186	input[nfile].name);
187	quit(1);
188	}
189	if (ncolumns > 0) {
190	if (curcol >= ncolumns) {
191	cury = ymax;
192	curx = 0;
193	curcol = 0;
194	}
195	input[nfile].xloc = curx;
196	input[nfile].yloc = cury;
197	curx += input[nfile].xres;
198	curcol++;
199	} else {
200	input[nfile].xloc = atoi(argv[an++]);
201	input[nfile].yloc = atoi(argv[an++]);
202	}
203	if (input[nfile].xloc < xmin)
204	xmin = input[nfile].xloc;
205	if (input[nfile].yloc < ymin)
206	ymin = input[nfile].yloc;
207	if (input[nfile].xloc+input[nfile].xres > xmax)
208	xmax = input[nfile].xloc+input[nfile].xres;
209	if (input[nfile].yloc+input[nfile].yres > ymax)
210	ymax = input[nfile].yloc+input[nfile].yres;
211	if (thislabel != NULL) {
212	if (++nfile >= MAXFILE)
213	goto toomany;
214	input[nfile].name = "<Label>";
215	input[nfile].hasmin = input[nfile].hasmax = 0;
216	if ((input[nfile].fp = lblopen(thislabel,
217	&input[nfile].xres,
218	&input[nfile].yres)) == NULL)
219	goto labelerr;
220	input[nfile].xloc = input[nfile-1].xloc;
221	input[nfile].yloc = input[nfile-1].yloc +
222	input[nfile-1].yres-input[nfile].yres;
223	}
224	}
225	if (xsiz <= 0)
226	xsiz = xmax;
227	if (ysiz <= 0)
228	ysiz = ymax;
229	/* add new header info. */
230	printargs(argc, argv, stdout);
231	fputformat(COLRFMT, stdout);
232	printf("\n-Y %d +X %d\n", ysiz, xsiz);
233
234	compos();
235
236	quit(0);
237	userr:
238	fprintf(stderr, "Usage: %s [-x xr][-y yr][-b r g b][-a n][-la][-lh h] ",
239	progname);
240	fprintf(stderr, "[-t min1][+t max1][-l lab] pic1 x1 y1 ..\n");
241	quit(1);
242	toomany:
243	fprintf(stderr, "%s: only %d files and labels allowed\n",
244	progname, MAXFILE);
245	quit(1);
246	labelerr:
247	fprintf(stderr, "%s: error opening label\n", progname);
248	quit(1);
249	}
250
251
252	compos() /* composite pictures */
253	{
254	COLR scanin, scanout;
255	int y;
256	register int x, i;
257
258	scanin = (COLR )malloc((xmax-xmin)sizeof(COLR));
259	if (scanin == NULL)
260	goto memerr;
261	scanin -= xmin;
262	if (checkthresh) {
263	scanout = (COLR )malloc(xsizsizeof(COLR));
264	if (scanout == NULL)
265	goto memerr;
266	} else
267	scanout = scanin;
268	for (y = ymax-1; y >= 0; y--) {
269	for (x = 0; x < xsiz; x++)
270	copycolr(scanout[x], bgcolr);
271	for (i = 0; i < nfile; i++) {
272	if (input[i].yloc > y \|\|
273	input[i].yloc+input[i].yres <= y)
274	continue;
275	if (freadcolrs(scanin+input[i].xloc,
276	input[i].xres, input[i].fp) < 0) {
277	fprintf(stderr, "%s: read error (y==%d)\n",
278	input[i].name,
279	y-input[i].yloc);
280	quit(1);
281	}
282	if (y >= ysiz)
283	continue;
284	if (checkthresh) {
285	x = input[i].xloc+input[i].xres;
286	if (x > xsiz)
287	x = xsiz;
288	for (x--; x >= 0 && x >= input[i].xloc; x--) {
289	if (input[i].hasmin &&
290	cmpcolr(scanin[x], input[i].thmin) <= 0)
291	continue;
292	if (input[i].hasmax &&
293	cmpcolr(scanin[x], input[i].thmax) >= 0)
294	continue;
295	copycolr(scanout[x], scanin[x]);
296	}
297	}
298	}
299	if (y >= ysiz)
300	continue;
301	if (fwritecolrs(scanout, xsiz, stdout) < 0) {
302	perror(progname);
303	quit(1);
304	}
305	}
306	return;
307	memerr:
308	perror(progname);
309	quit(1);
310	}
311
312
313	int
314	cmpcolr(c1, c2) /* compare two colr's (improvisation) */
315	register COLR c1, c2;
316	{
317	register int i, j;
318
319	j = 4; /* check exponents first! */
320	while (j--)
321	if (i = c1[j] - c2[j])
322	return(i);
323	return(0);
324	}
325
326
327	FILE *
328	lblopen(s, xp, yp) /* open pipe to label generator */
329	char *s;
330	int xp, yp;
331	{
332	char com[128];
333	FILE *fp;
334
335	sprintf(com, "psign -h %d '%.30s' \| pfilt -1 -x /2 -y /2",
336	2*labelht, s);
337	if ((fp = popen(com, "r")) == NULL)
338	return(NULL);
339	if (checkheader(fp, COLRFMT, NULL) < 0)
340	goto err;
341	if (fgetresolu(xp, yp, fp) != (YMAJOR\|YDECR))
342	goto err;
343	return(fp);
344	err:
345	pclose(fp);
346	return(NULL);
347	}
348
349
350	quit(code) /* exit gracefully */
351	int code;
352	{
353	exit(code);
354	}