src/px/pcompos.c

/* Copyright (c) 1987 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  checkthresh = 0;                   /* check threshold value */

char  *progname;

struct {
        char  *name;                    /* file 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 */


tabputs(s)                      /* print line preceded by a tab */
char  *s;
{
        putc('\t', stdout);
        fputs(s, stdout);
}


main(argc, argv)
int  argc;
char  *argv[];
{
        double  atof();
        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 '\0':
                case 't':
                        goto dofiles;
                default:
                        goto userr;
                }
dofiles:
        for (nfile = 0; an < argc; nfile++) {
                if (nfile >= MAXFILE) {
                        fprintf(stderr, "%s: too many files\n", progname);
                        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 < 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 = fopen(argv[an], "r")) == NULL) {
                                perror(argv[an]);
                                quit(1);
                        }
                }
                an++;
                                                /* get header */
                printf("%s:\n", input[nfile].name);
                getheader(input[nfile].fp, tabputs);
                                                /* 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);
                }
                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 (xsiz <= 0)
                xsiz = xmax;
        if (ysiz <= 0)
                ysiz = ymax;
                                        /* add new header info. */
        printargs(argc, argv, stdout);
        printf("\n-Y %d +X %d\n", ysiz, xsiz);

        compos();
        
        quit(0);
userr:
        fprintf(stderr, "Usage: %s [-x xres][-y yres][-b r g b] ", progname);
        fprintf(stderr, "[-t min1][+t max1] file1 x1 y1 ..\n");
        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:	1.5
Committed:	Thu Sep 14 09:20:36 1989 UTC (36 years, 1 month ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 1.4:	+4 -4 lines
Log Message:	Increased maximum number of files -- let system say otherwise
#	User	Rev	Content
1	greg	1.1	/* Copyright (c) 1987 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	greg	1.5	#define MAXFILE 32
19	greg	1.1
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 checkthresh = 0; /* check threshold value */
32
33			char *progname;
34
35			struct {
36			char name; / file name */
37			FILE fp; / stream pointer */
38			int xres, yres; /* picture size */
39			int xloc, yloc; /* anchor point */
40			int hasmin, hasmax; /* has threshold values */
41			COLR thmin, thmax; /* thresholds */
42			} input[MAXFILE]; /* our input files */
43
44			int nfile; /* number of files */
45
46
47			tabputs(s) /* print line preceded by a tab */
48			char *s;
49			{
50			putc('\t', stdout);
51			fputs(s, stdout);
52			}
53
54
55			main(argc, argv)
56			int argc;
57			char *argv[];
58			{
59			double atof();
60			int an;
61
62			progname = argv[0];
63
64			for (an = 1; an < argc && argv[an][0] == '-'; an++)
65			switch (argv[an][1]) {
66			case 'x':
67			xmax = xsiz = atoi(argv[++an]);
68			break;
69			case 'y':
70			ymax = ysiz = atoi(argv[++an]);
71			break;
72			case 'b':
73			setcolr(bgcolr, atof(argv[an+1]),
74			atof(argv[an+2]),
75			atof(argv[an+3]));
76			an += 3;
77			break;
78			case '\0':
79			case 't':
80			goto dofiles;
81			default:
82			goto userr;
83			}
84			dofiles:
85			for (nfile = 0; an < argc; nfile++) {
86			if (nfile >= MAXFILE) {
87			fprintf(stderr, "%s: too many files\n", progname);
88			quit(1);
89			}
90			input[nfile].hasmin = input[nfile].hasmax = 0;
91			while (an < argc && (argv[an][0] == '-' \|\| argv[an][0] == '+'))
92			switch (argv[an][1]) {
93			case 't':
94			checkthresh = 1;
95			if (argv[an][0] == '-') {
96			input[nfile].hasmin = 1;
97			setcolr(input[nfile].thmin,
98			atof(argv[an+1]),
99			atof(argv[an+1]),
100			atof(argv[an+1]));
101			} else {
102			input[nfile].hasmax = 1;
103			setcolr(input[nfile].thmax,
104			atof(argv[an+1]),
105			atof(argv[an+1]),
106			atof(argv[an+1]));
107			}
108			an += 2;
109			break;
110			case '\0':
111			if (argv[an][0] == '-')
112			goto getfile;
113			/* fall through */
114			default:
115			goto userr;
116			}
117			getfile:
118			if (argc-an < 3)
119			goto userr;
120			if (!strcmp(argv[an], "-")) {
121			input[nfile].name = "<stdin>";
122			input[nfile].fp = stdin;
123			} else {
124			input[nfile].name = argv[an];
125			if ((input[nfile].fp = fopen(argv[an], "r")) == NULL) {
126	greg	1.5	perror(argv[an]);
127	greg	1.1	quit(1);
128			}
129			}
130			an++;
131			/* get header */
132			printf("%s:\n", input[nfile].name);
133			getheader(input[nfile].fp, tabputs);
134			/* get picture size */
135	greg	1.4	if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
136			input[nfile].fp) != (YMAJOR\|YDECR)) {
137	greg	1.1	fprintf(stderr, "%s: bad picture size\n",
138			input[nfile].name);
139			quit(1);
140			}
141			input[nfile].xloc = atoi(argv[an++]);
142			input[nfile].yloc = atoi(argv[an++]);
143			if (input[nfile].xloc < xmin)
144			xmin = input[nfile].xloc;
145			if (input[nfile].yloc < ymin)
146			ymin = input[nfile].yloc;
147			if (input[nfile].xloc+input[nfile].xres > xmax)
148			xmax = input[nfile].xloc+input[nfile].xres;
149			if (input[nfile].yloc+input[nfile].yres > ymax)
150			ymax = input[nfile].yloc+input[nfile].yres;
151			}
152			if (xsiz <= 0)
153			xsiz = xmax;
154			if (ysiz <= 0)
155			ysiz = ymax;
156			/* add new header info. */
157			printargs(argc, argv, stdout);
158			printf("\n-Y %d +X %d\n", ysiz, xsiz);
159
160			compos();
161
162			quit(0);
163			userr:
164			fprintf(stderr, "Usage: %s [-x xres][-y yres][-b r g b] ", progname);
165			fprintf(stderr, "[-t min1][+t max1] file1 x1 y1 ..\n");
166			quit(1);
167			}
168
169
170			compos() /* composite pictures */
171			{
172			COLR scanin, scanout;
173			int y;
174			register int x, i;
175
176	greg	1.3	scanin = (COLR )malloc((xmax-xmin)sizeof(COLR));
177	greg	1.1	if (scanin == NULL)
178			goto memerr;
179			scanin -= xmin;
180			if (checkthresh) {
181			scanout = (COLR )malloc(xsizsizeof(COLR));
182			if (scanout == NULL)
183			goto memerr;
184			} else
185			scanout = scanin;
186			for (y = ymax-1; y >= 0; y--) {
187			for (x = 0; x < xsiz; x++)
188			copycolr(scanout[x], bgcolr);
189			for (i = 0; i < nfile; i++) {
190			if (input[i].yloc > y \|\|
191			input[i].yloc+input[i].yres <= y)
192			continue;
193			if (freadcolrs(scanin+input[i].xloc,
194			input[i].xres, input[i].fp) < 0) {
195	greg	1.2	fprintf(stderr, "%s: read error (y==%d)\n",
196			input[i].name,
197			y-input[i].yloc);
198	greg	1.1	quit(1);
199			}
200			if (y >= ysiz)
201			continue;
202			if (checkthresh) {
203			x = input[i].xloc+input[i].xres;
204			if (x > xsiz)
205			x = xsiz;
206			for (x--; x >= 0 && x >= input[i].xloc; x--) {
207			if (input[i].hasmin &&
208			cmpcolr(scanin[x], input[i].thmin) <= 0)
209			continue;
210			if (input[i].hasmax &&
211			cmpcolr(scanin[x], input[i].thmax) >= 0)
212			continue;
213			copycolr(scanout[x], scanin[x]);
214			}
215			}
216			}
217			if (y >= ysiz)
218			continue;
219			if (fwritecolrs(scanout, xsiz, stdout) < 0) {
220	greg	1.5	perror(progname);
221	greg	1.1	quit(1);
222			}
223			}
224			return;
225			memerr:
226	greg	1.5	perror(progname);
227	greg	1.1	quit(1);
228			}
229
230
231			int
232			cmpcolr(c1, c2) /* compare two colr's (improvisation) */
233			register COLR c1, c2;
234			{
235			register int i, j;
236
237			j = 4; /* check exponents first! */
238			while (j--)
239			if (i = c1[j] - c2[j])
240			return(i);
241			return(0);
242			}
243
244
245			quit(code) /* exit gracefully */
246			int code;
247			{
248			exit(code);
249			}