1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: pcompos.c,v 2.39 2021/09/02 16:10:01 greg Exp $"; |
3 |
#endif |
4 |
/* |
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* pcompos.c - program to composite pictures. |
6 |
* |
7 |
* 6/30/87 |
8 |
*/ |
9 |
|
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#include <math.h> |
11 |
|
12 |
#include "copyright.h" |
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|
14 |
#include "rtio.h" |
15 |
#include "platform.h" |
16 |
#include "paths.h" |
17 |
#include "rterror.h" |
18 |
#include "color.h" |
19 |
#include "resolu.h" |
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|
21 |
#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
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#undef getc |
23 |
#define getc getc_unlocked |
24 |
#endif |
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|
26 |
#define MAXFILE 1024 |
27 |
|
28 |
#define HASMIN 1 |
29 |
#define HASMAX 2 |
30 |
|
31 |
/* output picture size */ |
32 |
int xsiz = 0; |
33 |
int ysiz = 0; |
34 |
/* input dimensions */ |
35 |
int xmin = 0; |
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int ymin = 0; |
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int xmax = 0; |
38 |
int ymax = 0; |
39 |
|
40 |
COLR bgcolr = BLKCOLR; /* background color */ |
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|
42 |
int labelht = 24; /* label height */ |
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|
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int checkthresh = 0; /* check threshold value */ |
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|
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char StandardInput[] = "<stdin>"; |
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char Command[] = "<Command>"; |
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char Label[] = "<Label>"; |
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|
50 |
char *progname; |
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|
52 |
struct { |
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char *name; /* file or command name */ |
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FILE *fp; /* stream pointer */ |
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int xres, yres; /* picture size */ |
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int xloc, yloc; /* anchor point */ |
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int flags; /* HASMIN, HASMAX */ |
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double thmin, thmax; /* thresholds */ |
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} input[MAXFILE]; /* our input files */ |
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|
61 |
int nfile; /* number of files */ |
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|
63 |
int echoheader = 1; |
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char ourfmt[MAXFMTLEN] = PICFMT; |
65 |
int wrongformat = 0; |
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double common_expos = 1.; |
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|
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double this_expos; |
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|
70 |
static gethfunc headline; |
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static void compos(void); |
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static int cmpcolr(COLR c1, double lv2); |
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static FILE * lblopen(char *s, int *xp, int *yp); |
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|
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|
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|
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static int |
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headline( /* print line preceded by a tab */ |
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char *s, |
80 |
void *p |
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) |
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{ |
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char fmt[MAXFMTLEN]; |
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|
85 |
if (isheadid(s)) |
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return(0); |
87 |
if (isexpos(s)) |
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this_expos *= exposval(s); |
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if (formatval(fmt, s)) { |
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if (globmatch(ourfmt, fmt)) { |
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wrongformat = 0; |
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strcpy(ourfmt, fmt); |
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} else |
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wrongformat = 1; |
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} else if (echoheader) { |
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fputc('\t', stdout); |
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fputs(s, stdout); |
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} |
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return(0); |
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} |
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|
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|
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int |
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main( |
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int argc, |
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char *argv[] |
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) |
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{ |
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int ncolumns = 0; |
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int autolabel = 0; |
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int curcol = 0, x0 = 0, curx = 0, cury = 0, spacing = 0; |
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int xsgn, ysgn; |
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char *thislabel; |
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int an; |
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SET_DEFAULT_BINARY(); |
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SET_FILE_BINARY(stdin); |
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SET_FILE_BINARY(stdout); |
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progname = argv[0]; |
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|
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for (an = 1; an < argc && argv[an][0] == '-'; an++) |
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switch (argv[an][1]) { |
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case 'h': |
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echoheader = !echoheader; |
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break; |
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case 'x': |
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xsiz = atoi(argv[++an]); |
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break; |
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case 'y': |
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ysiz = atoi(argv[++an]); |
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break; |
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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; |
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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': |
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switch (argv[an][2]) { |
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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); |
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fputnow(stdout); |
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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; |
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input[nfile].flags = 0; |
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xsgn = ysgn = '-'; |
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while (an < argc && (argv[an][0] == '-' || argv[an][0] == '+' |
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|| 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 */ |
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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); |
242 |
if (!nfile) |
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common_expos = this_expos; |
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else if (common_expos > 0 && |
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fabs(this_expos/common_expos - 1.) > 0.02) |
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common_expos = 0; |
247 |
if (wrongformat) { |
248 |
fprintf(stderr, "%s: incompatible input format\n", |
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input[nfile].name); |
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quit(1); |
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} |
252 |
/* get picture size */ |
253 |
if (fgetresolu(&input[nfile].xres, &input[nfile].yres, |
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input[nfile].fp) < 0) { |
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fprintf(stderr, "%s: bad picture size\n", |
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input[nfile].name); |
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quit(1); |
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} |
259 |
if (ncolumns) { |
260 |
if (curcol >= abs(ncolumns)) { |
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cury = ymax + spacing; |
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curx = x0; |
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curcol = 0; |
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} |
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input[nfile].xloc = curx; |
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input[nfile].yloc = cury; |
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curx += input[nfile].xres + spacing; |
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curcol++; |
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} else { |
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input[nfile].xloc = atoi(argv[an++]); |
271 |
if (xsgn == '+') |
272 |
input[nfile].xloc -= input[nfile].xres; |
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else if (xsgn == '0') |
274 |
input[nfile].xloc -= input[nfile].xres/2; |
275 |
input[nfile].yloc = atoi(argv[an++]); |
276 |
if (ysgn == '+') |
277 |
input[nfile].yloc -= input[nfile].yres; |
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else if (ysgn == '0') |
279 |
input[nfile].yloc -= input[nfile].yres/2; |
280 |
} |
281 |
if (input[nfile].xloc < xmin) |
282 |
xmin = input[nfile].xloc; |
283 |
if (input[nfile].yloc < ymin) |
284 |
ymin = input[nfile].yloc; |
285 |
if (input[nfile].xloc+input[nfile].xres > xmax) |
286 |
xmax = input[nfile].xloc+input[nfile].xres; |
287 |
if (input[nfile].yloc+input[nfile].yres > ymax) |
288 |
ymax = input[nfile].yloc+input[nfile].yres; |
289 |
if (thislabel != NULL) { |
290 |
if (++nfile >= MAXFILE) |
291 |
goto toomany; |
292 |
input[nfile].name = Label; |
293 |
input[nfile].flags = 0; |
294 |
input[nfile].xres = input[nfile-1].xres; |
295 |
input[nfile].yres = labelht; |
296 |
if ((input[nfile].fp = lblopen(thislabel, |
297 |
&input[nfile].xres, |
298 |
&input[nfile].yres)) == NULL) |
299 |
goto labelerr; |
300 |
input[nfile].xloc = input[nfile-1].xloc; |
301 |
input[nfile].yloc = input[nfile-1].yloc + |
302 |
input[nfile-1].yres-input[nfile].yres; |
303 |
} |
304 |
} |
305 |
if (xsiz <= 0) |
306 |
xsiz = xmax; |
307 |
else if (xsiz > xmax) |
308 |
xmax = xsiz; |
309 |
if (ysiz <= 0) |
310 |
ysiz = ymax; |
311 |
else if (ysiz > ymax) |
312 |
ymax = ysiz; |
313 |
if (ncolumns < 0) { /* reverse rows if requested */ |
314 |
int i = nfile; |
315 |
while (i--) |
316 |
input[i].yloc = ymax - input[i].yres - input[i].yloc; |
317 |
} |
318 |
/* add new header info. */ |
319 |
printargs(argc, argv, stdout); |
320 |
if (common_expos > 0) /* print exposure if shared */ |
321 |
fputexpos(common_expos, stdout); |
322 |
if (strcmp(ourfmt, PICFMT)) |
323 |
fputformat(ourfmt, stdout); /* print format if known */ |
324 |
putchar('\n'); |
325 |
fprtresolu(xsiz, ysiz, stdout); |
326 |
|
327 |
compos(); |
328 |
|
329 |
quit(0); |
330 |
userr: |
331 |
fprintf(stderr, |
332 |
"Usage: %s [-h][-x xr][-y yr][-b r g b][-a n][-s p][-o x0 y0][-la][-lh h] ", |
333 |
progname); |
334 |
fprintf(stderr, "[-t min1][+t max1][-l lab][=SS] pic1 x1 y1 ..\n"); |
335 |
quit(1); |
336 |
toomany: |
337 |
fprintf(stderr, "%s: only %d files and labels allowed\n", |
338 |
progname, MAXFILE); |
339 |
quit(1); |
340 |
labelerr: |
341 |
fprintf(stderr, "%s: error opening label\n", progname); |
342 |
quit(1); |
343 |
return 1; /* pro forma return */ |
344 |
} |
345 |
|
346 |
|
347 |
static void |
348 |
compos(void) /* composite pictures */ |
349 |
{ |
350 |
COLR *scanin, *scanout; |
351 |
int y; |
352 |
register int x, i; |
353 |
|
354 |
scanin = (COLR *)malloc((xmax-xmin)*sizeof(COLR)); |
355 |
if (scanin == NULL) |
356 |
goto memerr; |
357 |
scanin -= xmin; |
358 |
if (checkthresh) { |
359 |
scanout = (COLR *)malloc(xsiz*sizeof(COLR)); |
360 |
if (scanout == NULL) |
361 |
goto memerr; |
362 |
} else |
363 |
scanout = scanin; |
364 |
for (y = ymax-1; y >= 0; y--) { |
365 |
for (x = 0; x < xsiz; x++) |
366 |
copycolr(scanout[x], bgcolr); |
367 |
for (i = 0; i < nfile; i++) { |
368 |
if (input[i].yloc > y || |
369 |
input[i].yloc+input[i].yres <= y) |
370 |
continue; |
371 |
if (freadcolrs(scanin+input[i].xloc, |
372 |
input[i].xres, input[i].fp) < 0) { |
373 |
fprintf(stderr, "%s: read error (y==%d)\n", |
374 |
input[i].name, |
375 |
y-input[i].yloc); |
376 |
quit(1); |
377 |
} |
378 |
if (y >= ysiz) |
379 |
continue; |
380 |
if (checkthresh) { |
381 |
x = input[i].xloc+input[i].xres; |
382 |
if (x > xsiz) |
383 |
x = xsiz; |
384 |
for (x--; x >= 0 && x >= input[i].xloc; x--) { |
385 |
if (input[i].flags & HASMIN && |
386 |
cmpcolr(scanin[x], input[i].thmin) <= 0) |
387 |
continue; |
388 |
if (input[i].flags & HASMAX && |
389 |
cmpcolr(scanin[x], input[i].thmax) >= 0) |
390 |
continue; |
391 |
copycolr(scanout[x], scanin[x]); |
392 |
} |
393 |
} |
394 |
} |
395 |
if (y >= ysiz) |
396 |
continue; |
397 |
if (fwritecolrs(scanout, xsiz, stdout) < 0) { |
398 |
perror(progname); |
399 |
quit(1); |
400 |
} |
401 |
} |
402 |
/* read remainders from streams */ |
403 |
for (i = 0; i < nfile; i++) |
404 |
if (input[i].name[0] == '<') |
405 |
while (getc(input[i].fp) != EOF) |
406 |
; |
407 |
return; |
408 |
memerr: |
409 |
perror(progname); |
410 |
quit(1); |
411 |
} |
412 |
|
413 |
|
414 |
static int |
415 |
cmpcolr( /* compare COLR to luminance */ |
416 |
register COLR c1, |
417 |
double lv2 |
418 |
) |
419 |
{ |
420 |
double lv1 = .0; |
421 |
|
422 |
if (c1[EXP]) |
423 |
lv1 = ldexp((double)normbright(c1), (int)c1[EXP]-(COLXS+8)); |
424 |
if (lv1 < lv2) return(-1); |
425 |
if (lv1 > lv2) return(1); |
426 |
return(0); |
427 |
} |
428 |
|
429 |
|
430 |
static FILE * |
431 |
lblopen( /* open pipe to label generator */ |
432 |
char *s, |
433 |
int *xp, |
434 |
int *yp |
435 |
) |
436 |
{ |
437 |
char com[PATH_MAX]; |
438 |
FILE *fp; |
439 |
|
440 |
sprintf(com, "psign -s -.15 -a 2 -x %d -y %d '%.90s'", *xp, *yp, s); |
441 |
if ((fp = popen(com, "r")) == NULL) |
442 |
return(NULL); |
443 |
if (checkheader(fp, COLRFMT, NULL) < 0) |
444 |
goto err; |
445 |
if (fgetresolu(xp, yp, fp) < 0) |
446 |
goto err; |
447 |
return(fp); |
448 |
err: |
449 |
pclose(fp); |
450 |
return(NULL); |
451 |
} |
452 |
|
453 |
|
454 |
void |
455 |
quit(code) /* exit gracefully */ |
456 |
int code; |
457 |
{ |
458 |
register int i; |
459 |
/* close input files */ |
460 |
for (i = 0; i < nfile; i++) |
461 |
if (input[i].name == Command || input[i].name == Label) |
462 |
pclose(input[i].fp); |
463 |
else |
464 |
fclose(input[i].fp); |
465 |
exit(code); |
466 |
} |