| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: pcompos.c,v 2.41 2025/06/03 21:31:51 greg Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* pcompos.c - program to composite pictures. |
| 6 |
* |
| 7 |
* 6/30/87 |
| 8 |
*/ |
| 9 |
|
| 10 |
#include <math.h> |
| 11 |
|
| 12 |
#include "copyright.h" |
| 13 |
|
| 14 |
#include "rtio.h" |
| 15 |
#include "platform.h" |
| 16 |
#include "rterror.h" |
| 17 |
#include "color.h" |
| 18 |
#include "resolu.h" |
| 19 |
|
| 20 |
#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
| 21 |
#undef getc |
| 22 |
#define getc getc_unlocked |
| 23 |
#endif |
| 24 |
|
| 25 |
#define MAXFILE 1024 |
| 26 |
|
| 27 |
#define HASMIN 1 |
| 28 |
#define HASMAX 2 |
| 29 |
|
| 30 |
/* output picture size */ |
| 31 |
int xsiz = 0; |
| 32 |
int ysiz = 0; |
| 33 |
/* input dimensions */ |
| 34 |
int xmin = 0; |
| 35 |
int ymin = 0; |
| 36 |
int xmax = 0; |
| 37 |
int ymax = 0; |
| 38 |
|
| 39 |
COLR bgcolr = BLKCOLR; /* background color */ |
| 40 |
|
| 41 |
int labelht = 24; /* label height */ |
| 42 |
|
| 43 |
int checkthresh = 0; /* check threshold value */ |
| 44 |
|
| 45 |
char StandardInput[] = "<stdin>"; |
| 46 |
char Command[] = "<Command>"; |
| 47 |
char Label[] = "<Label>"; |
| 48 |
|
| 49 |
struct { |
| 50 |
char *name; /* file or command name */ |
| 51 |
FILE *fp; /* stream pointer */ |
| 52 |
int xres, yres; /* picture size */ |
| 53 |
int xloc, yloc; /* anchor point */ |
| 54 |
int flags; /* HASMIN, HASMAX */ |
| 55 |
double thmin, thmax; /* thresholds */ |
| 56 |
} input[MAXFILE]; /* our input files */ |
| 57 |
|
| 58 |
int nfile; /* number of files */ |
| 59 |
|
| 60 |
int echoheader = 1; |
| 61 |
char ourfmt[MAXFMTLEN] = PICFMT; |
| 62 |
int wrongformat = 0; |
| 63 |
double common_expos = 1.; |
| 64 |
|
| 65 |
double this_expos; |
| 66 |
|
| 67 |
static gethfunc headline; |
| 68 |
static void compos(void); |
| 69 |
static int cmpcolr(COLR c1, double lv2); |
| 70 |
static FILE * lblopen(char *s, int *xp, int *yp); |
| 71 |
|
| 72 |
|
| 73 |
|
| 74 |
static int |
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headline( /* print line preceded by a tab */ |
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char *s, |
| 77 |
void *p |
| 78 |
) |
| 79 |
{ |
| 80 |
char fmt[MAXFMTLEN]; |
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|
| 82 |
if (isheadid(s)) |
| 83 |
return(0); |
| 84 |
if (isexpos(s)) |
| 85 |
this_expos *= exposval(s); |
| 86 |
if (formatval(fmt, s)) { |
| 87 |
if (globmatch(ourfmt, fmt)) { |
| 88 |
wrongformat = 0; |
| 89 |
strcpy(ourfmt, fmt); |
| 90 |
} else |
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wrongformat = 1; |
| 92 |
} else if (echoheader) { |
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fputc('\t', stdout); |
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fputs(s, stdout); |
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} |
| 96 |
return(0); |
| 97 |
} |
| 98 |
|
| 99 |
|
| 100 |
int |
| 101 |
main( |
| 102 |
int argc, |
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char *argv[] |
| 104 |
) |
| 105 |
{ |
| 106 |
int ncolumns = 0; |
| 107 |
int autolabel = 0; |
| 108 |
int curcol = 0, x0 = 0, curx = 0, cury = 0, spacing = 0; |
| 109 |
int xsgn, ysgn; |
| 110 |
char *thislabel; |
| 111 |
int an; |
| 112 |
|
| 113 |
SET_DEFAULT_BINARY(); |
| 114 |
SET_FILE_BINARY(stdin); |
| 115 |
SET_FILE_BINARY(stdout); |
| 116 |
|
| 117 |
fixargv0(argv[0]); /* sets global progname */ |
| 118 |
|
| 119 |
for (an = 1; an < argc && argv[an][0] == '-'; an++) |
| 120 |
switch (argv[an][1]) { |
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case 'h': |
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echoheader = !echoheader; |
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break; |
| 124 |
case 'x': |
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xsiz = atoi(argv[++an]); |
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break; |
| 127 |
case 'y': |
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ysiz = atoi(argv[++an]); |
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break; |
| 130 |
case 'b': |
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setcolr(bgcolr, atof(argv[an+1]), |
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atof(argv[an+2]), |
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atof(argv[an+3])); |
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an += 3; |
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break; |
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case 'a': |
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ncolumns = atoi(argv[++an]); |
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break; |
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case 's': |
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spacing = atoi(argv[++an]); |
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break; |
| 142 |
case 'o': |
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curx = x0 = atoi(argv[++an]); |
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cury = atoi(argv[++an]); |
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break; |
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case 'l': |
| 147 |
switch (argv[an][2]) { |
| 148 |
case 'a': |
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autolabel++; |
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break; |
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case 'h': |
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labelht = atoi(argv[++an]); |
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break; |
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case '\0': |
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goto dofiles; |
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default: |
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goto userr; |
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} |
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break; |
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case '\0': |
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case 't': |
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goto dofiles; |
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default: |
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goto userr; |
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} |
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dofiles: |
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newheader("RADIANCE", stdout); |
| 168 |
fputnow(stdout); |
| 169 |
for (nfile = 0; an < argc; nfile++) { |
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if (nfile >= MAXFILE) |
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goto toomany; |
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thislabel = NULL; |
| 173 |
input[nfile].flags = 0; |
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xsgn = ysgn = '-'; |
| 175 |
while (an < argc && (argv[an][0] == '-' || argv[an][0] == '+' |
| 176 |
|| argv[an][0] == '=')) { |
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switch (argv[an][1]) { |
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case 't': |
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checkthresh = 1; |
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if (argv[an][0] == '-') { |
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input[nfile].flags |= HASMIN; |
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input[nfile].thmin = atof(argv[an+1]); |
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} else if (argv[an][0] == '+') { |
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input[nfile].flags |= HASMAX; |
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input[nfile].thmax = atof(argv[an+1]); |
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} else |
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goto userr; |
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an++; |
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break; |
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case 'l': |
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if (strcmp(argv[an], "-l")) |
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goto userr; |
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thislabel = argv[++an]; |
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break; |
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case '+': |
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case '-': |
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case '0': |
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if (argv[an][0] != '=') |
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goto userr; |
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xsgn = argv[an][1]; |
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ysgn = argv[an][2]; |
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if (ysgn != '+' && ysgn != '-' && ysgn != '0') |
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goto userr; |
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break; |
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case '\0': |
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if (argv[an][0] == '-') |
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goto getfile; |
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goto userr; |
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default: |
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goto userr; |
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} |
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an++; |
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} |
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getfile: |
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if (argc-an < (ncolumns ? 1 : 3)) |
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goto userr; |
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if (autolabel && thislabel == NULL) |
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thislabel = argv[an]; |
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if (!strcmp(argv[an], "-")) { |
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input[nfile].name = StandardInput; |
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input[nfile].fp = stdin; |
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} else { |
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if (argv[an][0] == '!') { |
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input[nfile].name = Command; |
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input[nfile].fp = popen(argv[an]+1, "r"); |
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} else { |
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input[nfile].name = argv[an]; |
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input[nfile].fp = fopen(argv[an], "r"); |
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} |
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if (input[nfile].fp == NULL) { |
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perror(argv[an]); |
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quit(1); |
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} |
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} |
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an++; |
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/* get header */ |
| 237 |
if (echoheader) |
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printf("%s:\n", input[nfile].name); |
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this_expos = 1; |
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getheader(input[nfile].fp, headline, NULL); |
| 241 |
if (!nfile) |
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common_expos = this_expos; |
| 243 |
else if (common_expos > 0 && |
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fabs(this_expos/common_expos - 1.) > 0.02) |
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common_expos = 0; |
| 246 |
if (wrongformat) { |
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fprintf(stderr, "%s: incompatible input format\n", |
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input[nfile].name); |
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quit(1); |
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} |
| 251 |
/* get picture size */ |
| 252 |
if (fgetresolu(&input[nfile].xres, &input[nfile].yres, |
| 253 |
input[nfile].fp) < 0) { |
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fprintf(stderr, "%s: bad picture size\n", |
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input[nfile].name); |
| 256 |
quit(1); |
| 257 |
} |
| 258 |
if (ncolumns) { |
| 259 |
if (curcol >= abs(ncolumns)) { |
| 260 |
cury = ymax + spacing; |
| 261 |
curx = x0; |
| 262 |
curcol = 0; |
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} |
| 264 |
input[nfile].xloc = curx; |
| 265 |
input[nfile].yloc = cury; |
| 266 |
curx += input[nfile].xres + spacing; |
| 267 |
curcol++; |
| 268 |
} else { |
| 269 |
input[nfile].xloc = atoi(argv[an++]); |
| 270 |
if (xsgn == '+') |
| 271 |
input[nfile].xloc -= input[nfile].xres; |
| 272 |
else if (xsgn == '0') |
| 273 |
input[nfile].xloc -= input[nfile].xres/2; |
| 274 |
input[nfile].yloc = atoi(argv[an++]); |
| 275 |
if (ysgn == '+') |
| 276 |
input[nfile].yloc -= input[nfile].yres; |
| 277 |
else if (ysgn == '0') |
| 278 |
input[nfile].yloc -= input[nfile].yres/2; |
| 279 |
} |
| 280 |
if (input[nfile].xloc < xmin) |
| 281 |
xmin = input[nfile].xloc; |
| 282 |
if (input[nfile].yloc < ymin) |
| 283 |
ymin = input[nfile].yloc; |
| 284 |
if (input[nfile].xloc+input[nfile].xres > xmax) |
| 285 |
xmax = input[nfile].xloc+input[nfile].xres; |
| 286 |
if (input[nfile].yloc+input[nfile].yres > ymax) |
| 287 |
ymax = input[nfile].yloc+input[nfile].yres; |
| 288 |
if (thislabel != NULL) { |
| 289 |
if (++nfile >= MAXFILE) |
| 290 |
goto toomany; |
| 291 |
input[nfile].name = Label; |
| 292 |
input[nfile].flags = 0; |
| 293 |
input[nfile].xres = input[nfile-1].xres; |
| 294 |
input[nfile].yres = labelht; |
| 295 |
if ((input[nfile].fp = lblopen(thislabel, |
| 296 |
&input[nfile].xres, |
| 297 |
&input[nfile].yres)) == NULL) |
| 298 |
goto labelerr; |
| 299 |
input[nfile].xloc = input[nfile-1].xloc; |
| 300 |
input[nfile].yloc = input[nfile-1].yloc + |
| 301 |
input[nfile-1].yres-input[nfile].yres; |
| 302 |
} |
| 303 |
} |
| 304 |
if (xsiz <= 0) |
| 305 |
xsiz = xmax; |
| 306 |
else if (xsiz > xmax) |
| 307 |
xmax = xsiz; |
| 308 |
if (ysiz <= 0) |
| 309 |
ysiz = ymax; |
| 310 |
else if (ysiz > ymax) |
| 311 |
ymax = ysiz; |
| 312 |
if (ncolumns < 0) { /* reverse rows if requested */ |
| 313 |
int i = nfile; |
| 314 |
while (i--) |
| 315 |
input[i].yloc = ymax - input[i].yres - input[i].yloc; |
| 316 |
} |
| 317 |
/* add new header info. */ |
| 318 |
printargs(argc, argv, stdout); |
| 319 |
if (common_expos > 0) /* print exposure if shared */ |
| 320 |
fputexpos(common_expos, stdout); |
| 321 |
if (strcmp(ourfmt, PICFMT)) |
| 322 |
fputformat(ourfmt, stdout); /* print format if known */ |
| 323 |
putchar('\n'); |
| 324 |
fprtresolu(xsiz, ysiz, stdout); |
| 325 |
|
| 326 |
compos(); |
| 327 |
|
| 328 |
quit(0); |
| 329 |
userr: |
| 330 |
fprintf(stderr, |
| 331 |
"Usage: %s [-h][-x xr][-y yr][-b r g b][-a n][-s p][-o x0 y0][-la][-lh h] ", |
| 332 |
progname); |
| 333 |
fprintf(stderr, "[-t min1][+t max1][-l lab][=SS] pic1 x1 y1 ..\n"); |
| 334 |
quit(1); |
| 335 |
toomany: |
| 336 |
fprintf(stderr, "%s: only %d files and labels allowed\n", |
| 337 |
progname, MAXFILE); |
| 338 |
quit(1); |
| 339 |
labelerr: |
| 340 |
fprintf(stderr, "%s: error opening label\n", progname); |
| 341 |
quit(1); |
| 342 |
return 1; /* pro forma return */ |
| 343 |
} |
| 344 |
|
| 345 |
|
| 346 |
static void |
| 347 |
compos(void) /* composite pictures */ |
| 348 |
{ |
| 349 |
COLR *scanin, *scanout; |
| 350 |
int y; |
| 351 |
register int x, i; |
| 352 |
|
| 353 |
scanin = (COLR *)malloc((xmax-xmin)*sizeof(COLR)); |
| 354 |
if (scanin == NULL) |
| 355 |
goto memerr; |
| 356 |
scanin -= xmin; |
| 357 |
if (checkthresh) { |
| 358 |
scanout = (COLR *)malloc(xsiz*sizeof(COLR)); |
| 359 |
if (scanout == NULL) |
| 360 |
goto memerr; |
| 361 |
} else |
| 362 |
scanout = scanin; |
| 363 |
for (y = ymax-1; y >= 0; y--) { |
| 364 |
for (x = 0; x < xsiz; x++) |
| 365 |
copycolr(scanout[x], bgcolr); |
| 366 |
for (i = 0; i < nfile; i++) { |
| 367 |
if (input[i].yloc > y || |
| 368 |
input[i].yloc+input[i].yres <= y) |
| 369 |
continue; |
| 370 |
if (freadcolrs(scanin+input[i].xloc, |
| 371 |
input[i].xres, input[i].fp) < 0) { |
| 372 |
fprintf(stderr, "%s: read error (y==%d)\n", |
| 373 |
input[i].name, |
| 374 |
y-input[i].yloc); |
| 375 |
quit(1); |
| 376 |
} |
| 377 |
if (y >= ysiz) |
| 378 |
continue; |
| 379 |
if (checkthresh) { |
| 380 |
x = input[i].xloc+input[i].xres; |
| 381 |
if (x > xsiz) |
| 382 |
x = xsiz; |
| 383 |
for (x--; x >= 0 && x >= input[i].xloc; x--) { |
| 384 |
if (input[i].flags & HASMIN && |
| 385 |
cmpcolr(scanin[x], input[i].thmin) <= 0) |
| 386 |
continue; |
| 387 |
if (input[i].flags & HASMAX && |
| 388 |
cmpcolr(scanin[x], input[i].thmax) >= 0) |
| 389 |
continue; |
| 390 |
copycolr(scanout[x], scanin[x]); |
| 391 |
} |
| 392 |
} |
| 393 |
} |
| 394 |
if (y >= ysiz) |
| 395 |
continue; |
| 396 |
if (fwritecolrs(scanout, xsiz, stdout) < 0) { |
| 397 |
perror(progname); |
| 398 |
quit(1); |
| 399 |
} |
| 400 |
} |
| 401 |
/* read remainders from streams */ |
| 402 |
for (i = 0; i < nfile; i++) |
| 403 |
if (input[i].name[0] == '<') |
| 404 |
while (getc(input[i].fp) != EOF) |
| 405 |
; |
| 406 |
return; |
| 407 |
memerr: |
| 408 |
perror(progname); |
| 409 |
quit(1); |
| 410 |
} |
| 411 |
|
| 412 |
|
| 413 |
static int |
| 414 |
cmpcolr( /* compare COLR to luminance */ |
| 415 |
register COLR c1, |
| 416 |
double lv2 |
| 417 |
) |
| 418 |
{ |
| 419 |
double lv1 = .0; |
| 420 |
|
| 421 |
if (c1[EXP]) |
| 422 |
lv1 = ldexp((double)normbright(c1), (int)c1[EXP]-(COLXS+8)); |
| 423 |
if (lv1 < lv2) return(-1); |
| 424 |
if (lv1 > lv2) return(1); |
| 425 |
return(0); |
| 426 |
} |
| 427 |
|
| 428 |
|
| 429 |
static FILE * |
| 430 |
lblopen( /* open pipe to label generator */ |
| 431 |
char *s, |
| 432 |
int *xp, |
| 433 |
int *yp |
| 434 |
) |
| 435 |
{ |
| 436 |
char com[PATH_MAX]; |
| 437 |
FILE *fp; |
| 438 |
|
| 439 |
sprintf(com, "psign -s -.15 -a 2 -x %d -y %d '%.90s'", *xp, *yp, s); |
| 440 |
if ((fp = popen(com, "r")) == NULL) |
| 441 |
return(NULL); |
| 442 |
if (checkheader(fp, COLRFMT, NULL) < 0) |
| 443 |
goto err; |
| 444 |
if (fgetresolu(xp, yp, fp) < 0) |
| 445 |
goto err; |
| 446 |
return(fp); |
| 447 |
err: |
| 448 |
pclose(fp); |
| 449 |
return(NULL); |
| 450 |
} |
| 451 |
|
| 452 |
|
| 453 |
void |
| 454 |
quit(code) /* exit gracefully */ |
| 455 |
int code; |
| 456 |
{ |
| 457 |
register int i; |
| 458 |
/* close input files */ |
| 459 |
for (i = 0; i < nfile; i++) |
| 460 |
if (input[i].name == Command || input[i].name == Label) |
| 461 |
pclose(input[i].fp); |
| 462 |
else |
| 463 |
fclose(input[i].fp); |
| 464 |
exit(code); |
| 465 |
} |
