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/* Copyright (c) 1991 Regents of the University of California */ |
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|
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#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
4 |
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/* |
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* Combine picture files according to calcomp functions. |
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* |
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* 1/4/89 |
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*/ |
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|
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#include <stdio.h> |
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|
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#include <errno.h> |
16 |
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|
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#include "platform.h" |
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#include "standard.h" |
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#include "paths.h" |
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#include "color.h" |
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|
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#include "calcomp.h" |
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#include "view.h" |
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|
17 |
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#define MAXINP 32 /* maximum number of input files */ |
18 |
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#define WINSIZ 9 /* scanline window size */ |
19 |
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#define MIDSCN 4 /* current scan position */ |
17 |
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#define MAXINP 1024 /* maximum number of input files */ |
18 |
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#define WINSIZ 127 /* scanline window size */ |
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#define MIDSCN ((WINSIZ-1)/2+1) |
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|
|
25 |
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#define BRT (-1) /* special index for brightness */ |
26 |
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|
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struct { |
22 |
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char *name; /* file name */ |
22 |
> |
char *name; /* file or command name */ |
23 |
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FILE *fp; /* stream pointer */ |
24 |
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VIEW vw; /* view for picture */ |
25 |
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RESOLU rs; /* image resolution and orientation */ |
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float pa; /* pixel aspect ratio */ |
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COLOR *scan[WINSIZ]; /* input scanline window */ |
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COLOR coef; /* coefficient */ |
29 |
+ |
COLOR expos; /* recorded exposure */ |
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} input[MAXINP]; /* input pictures */ |
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|
32 |
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int nfiles; /* number of input files */ |
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|
34 |
< |
char *vcolin[3] = {"ri", "gi", "bi"}; |
35 |
< |
char *vcolout[3] = {"ro", "go", "bo"}; |
34 |
> |
VIEW *commvp = NULL; /* common view parameters */ |
35 |
> |
|
36 |
> |
char ourfmt[LPICFMT+1] = PICFMT; /* input picture format */ |
37 |
> |
|
38 |
> |
char StandardInput[] = "<stdin>"; |
39 |
> |
char Command[] = "<Command>"; |
40 |
> |
char vcolin[3][4] = {"ri", "gi", "bi"}; |
41 |
> |
char vcolout[3][4] = {"ro", "go", "bo"}; |
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char vbrtin[] = "li"; |
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char vbrtout[] = "lo"; |
44 |
< |
char *vcolcoef[3] = {"rc", "gc", "bc"}; |
45 |
< |
char vbrtcoef[] = "lc"; |
44 |
> |
char vcolexp[3][4] = {"re", "ge", "be"}; |
45 |
> |
char vbrtexp[] = "le"; |
46 |
> |
char vpixaspect[] = "pa"; |
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|
48 |
< |
#define vnfiles "nfiles" |
44 |
< |
#define vxres "xres" |
45 |
< |
#define vyres "yres" |
46 |
< |
#define vxpos "x" |
47 |
< |
#define vypos "y" |
48 |
> |
char vray[7][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz", "T"}; |
49 |
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|
50 |
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char vpsize[] = "S"; |
51 |
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|
52 |
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char vnfiles[] = "nfiles"; |
53 |
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char vwhteff[] = "WE"; |
54 |
+ |
char vxmax[] = "xmax"; |
55 |
+ |
char vymax[] = "ymax"; |
56 |
+ |
char vxres[] = "xres"; |
57 |
+ |
char vyres[] = "yres"; |
58 |
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char vxpos[] = "x"; |
59 |
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char vypos[] = "y"; |
60 |
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|
61 |
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int nowarn = 0; /* no warning messages? */ |
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|
63 |
< |
int original = 0; /* origninal values? */ |
63 |
> |
int xmax = 0, ymax = 0; /* input resolution */ |
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|
65 |
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int xres=0, yres=0; /* picture resolution */ |
65 |
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int xscan, yscan; /* input position */ |
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|
67 |
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int xpos, ypos; /* picture position */ |
67 |
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int xres, yres; /* output resolution */ |
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|
69 |
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int xpos, ypos; /* output position */ |
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|
71 |
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char *progname; /* global argv[0] */ |
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|
73 |
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int echoheader = 1; |
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int wrongformat = 0; |
75 |
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int gotview; |
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|
77 |
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|
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main(argc, argv) |
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int argc; |
80 |
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char *argv[]; |
78 |
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static gethfunc headline; |
79 |
> |
static void checkfile(int orig); |
80 |
> |
static double rgb_bright(COLOR clr); |
81 |
> |
static double xyz_bright(COLOR clr); |
82 |
> |
static void init(void); |
83 |
> |
static void combine(void); |
84 |
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static void advance(void); |
85 |
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static double l_expos(char *nam); |
86 |
> |
static double l_pixaspect(char *nm); |
87 |
> |
static double l_colin(char *nam); |
88 |
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static double l_ray(char *nam); |
89 |
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static double l_psize(char *nm); |
90 |
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|
91 |
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|
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int |
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main( |
94 |
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int argc, |
95 |
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char *argv[] |
96 |
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) |
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{ |
98 |
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int original; |
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double f; |
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int a, i; |
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int a; |
101 |
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|
102 |
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SET_DEFAULT_BINARY(); |
103 |
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SET_FILE_BINARY(stdin); |
104 |
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SET_FILE_BINARY(stdout); |
105 |
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progname = argv[0]; |
106 |
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esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
107 |
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esupport &= ~(E_OUTCHAN|E_INCHAN); |
108 |
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/* scan options */ |
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for (a = 1; a < argc; a++) { |
110 |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
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xres = atoi(argv[++a]); |
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continue; |
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case 'y': |
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yres = atoi(argv[++a]); |
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a++; |
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continue; |
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case 'w': |
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nowarn = !nowarn; |
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continue; |
119 |
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case 'o': |
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original = !original; |
119 |
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case 'h': |
120 |
> |
echoheader = !echoheader; |
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continue; |
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case 'f': |
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case 'e': |
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} |
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break; |
128 |
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} |
129 |
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newheader("RADIANCE", stdout); /* start header */ |
130 |
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fputnow(stdout); |
131 |
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/* process files */ |
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for (nfiles = 0; nfiles < MAXINP; nfiles++) |
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for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
134 |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
135 |
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input[nfiles].vw = stdview; |
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input[nfiles].pa = 1.0; |
137 |
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} |
138 |
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nfiles = 0; |
139 |
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original = 0; |
140 |
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for ( ; a < argc; a++) { |
141 |
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if (nfiles >= MAXINP) { |
142 |
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eputs(argv[0]); |
146 |
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if (argv[a][0] == '-') |
147 |
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switch (argv[a][1]) { |
148 |
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case '\0': |
149 |
< |
input[nfiles].name = "<stdin>"; |
149 |
> |
input[nfiles].name = StandardInput; |
150 |
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input[nfiles].fp = stdin; |
151 |
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break; |
152 |
+ |
case 'o': |
153 |
+ |
original++; |
154 |
+ |
continue; |
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case 's': |
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f = atof(argv[++a]); |
157 |
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scalecolor(input[nfiles].coef, f); |
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goto usage; |
166 |
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} |
167 |
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else { |
168 |
< |
input[nfiles].name = argv[a]; |
169 |
< |
input[nfiles].fp = fopen(argv[a], "r"); |
168 |
> |
if (argv[a][0] == '!') { |
169 |
> |
input[nfiles].name = Command; |
170 |
> |
input[nfiles].fp = popen(argv[a]+1, "r"); |
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> |
} else { |
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> |
input[nfiles].name = argv[a]; |
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> |
input[nfiles].fp = fopen(argv[a], "r"); |
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> |
} |
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if (input[nfiles].fp == NULL) { |
176 |
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perror(argv[a]); |
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quit(1); |
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} |
179 |
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} |
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< |
checkfile(); |
180 |
> |
checkfile(original); |
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nfiles++; |
182 |
+ |
original = 0; |
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} |
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init(); /* set constant expressions */ |
184 |
> |
init(); /* set constants */ |
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/* go back and get expressions */ |
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for (a = 1; a < argc; a++) { |
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char *fpath; |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
191 |
+ |
varset(vxres, ':', eval(argv[++a])); |
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+ |
continue; |
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case 'y': |
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< |
a++; |
194 |
> |
varset(vyres, ':', eval(argv[++a])); |
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continue; |
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case 'w': |
138 |
– |
case 'o': |
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continue; |
198 |
+ |
case 'h': |
199 |
+ |
continue; |
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|
case 'f': |
201 |
< |
fcompile(argv[++a]); |
201 |
> |
fpath = getpath(argv[++a], getrlibpath(), 0); |
202 |
> |
if (fpath == NULL) { |
203 |
> |
eputs(argv[0]); |
204 |
> |
eputs(": cannot find file '"); |
205 |
> |
eputs(argv[a]); |
206 |
> |
eputs("'\n"); |
207 |
> |
quit(1); |
208 |
> |
} |
209 |
> |
fcompile(fpath); |
210 |
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continue; |
211 |
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case 'e': |
212 |
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scompile(argv[++a], NULL, 0); |
214 |
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} |
215 |
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break; |
216 |
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} |
217 |
+ |
/* get output resolution */ |
218 |
+ |
xres = varvalue(vxres) + .5; |
219 |
+ |
yres = varvalue(vyres) + .5; |
220 |
+ |
if (xres <= 0 || yres <= 0) { |
221 |
+ |
eputs(argv[0]); |
222 |
+ |
eputs(": illegal output resolution\n"); |
223 |
+ |
quit(1); |
224 |
+ |
} |
225 |
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/* complete header */ |
226 |
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printargs(argc, argv, stdout); |
227 |
< |
fputformat(COLRFMT, stdout); |
227 |
> |
if (commvp != NULL) { |
228 |
> |
fputs(VIEWSTR, stdout); |
229 |
> |
fprintview(commvp, stdout); |
230 |
> |
fputc('\n', stdout); |
231 |
> |
} |
232 |
> |
if (strcmp(ourfmt, PICFMT)) |
233 |
> |
fputformat(ourfmt, stdout); /* print format if known */ |
234 |
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putchar('\n'); |
235 |
< |
fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
235 |
> |
fprtresolu(xres, yres, stdout); |
236 |
|
/* combine pictures */ |
237 |
|
combine(); |
238 |
|
quit(0); |
240 |
|
eputs("Usage: "); |
241 |
|
eputs(argv[0]); |
242 |
|
eputs( |
243 |
< |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
243 |
> |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] hdr ..]\n"); |
244 |
|
quit(1); |
245 |
+ |
return 1; /* pro forma return */ |
246 |
|
} |
247 |
|
|
248 |
|
|
249 |
< |
tputs(s) /* put out string preceded by a tab */ |
250 |
< |
char *s; |
249 |
> |
static int |
250 |
> |
headline( /* check header line & echo if requested */ |
251 |
> |
char *s, |
252 |
> |
void *p |
253 |
> |
) |
254 |
|
{ |
255 |
< |
char fmt[32]; |
255 |
> |
int orig = *(int *)p; |
256 |
> |
char fmt[MAXFMTLEN]; |
257 |
|
double d; |
258 |
|
COLOR ctmp; |
259 |
|
|
260 |
< |
if (isformat(s)) { /* check format */ |
261 |
< |
formatval(fmt, s); |
262 |
< |
wrongformat = strcmp(fmt, COLRFMT); |
263 |
< |
} else if (original && isexpos(s)) { /* exposure */ |
264 |
< |
d = 1.0/exposval(s); |
265 |
< |
scalecolor(input[nfiles].coef, d); |
266 |
< |
} else if (original && iscolcor(s)) { /* color correction */ |
260 |
> |
if (isheadid(s)) /* header id */ |
261 |
> |
return(0); /* don't echo */ |
262 |
> |
if (formatval(fmt, s)) { /* check format */ |
263 |
> |
if (globmatch(ourfmt, fmt)) { |
264 |
> |
wrongformat = 0; |
265 |
> |
strcpy(ourfmt, fmt); |
266 |
> |
} else |
267 |
> |
wrongformat = globmatch(PICFMT, fmt) ? 1 : -1; |
268 |
> |
return(0); /* don't echo */ |
269 |
> |
} |
270 |
> |
if (orig) { /* undo exposure? */ |
271 |
> |
if (isexpos(s)) { |
272 |
> |
d = 1./exposval(s); |
273 |
> |
scalecolor(input[nfiles].coef, d); |
274 |
> |
return(0); /* don't echo */ |
275 |
> |
} |
276 |
> |
if (iscolcor(s)) { |
277 |
> |
int i; |
278 |
> |
colcorval(ctmp, s); |
279 |
> |
for (i = 3; i--; ) |
280 |
> |
colval(input[nfiles].coef,i) /= colval(ctmp,i); |
281 |
> |
return(0); /* don't echo */ |
282 |
> |
} |
283 |
> |
} else if (isexpos(s)) { /* record exposure? */ |
284 |
> |
d = exposval(s); |
285 |
> |
scalecolor(input[nfiles].expos, d); |
286 |
> |
} else if (iscolcor(s)) { |
287 |
|
colcorval(ctmp, s); |
288 |
< |
colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
289 |
< |
colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
290 |
< |
colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
291 |
< |
} else { /* echo unaffected line */ |
288 |
> |
multcolor(input[nfiles].expos, ctmp); |
289 |
> |
} else if (isaspect(s)) |
290 |
> |
input[nfiles].pa *= aspectval(s); |
291 |
> |
else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
292 |
> |
gotview++; |
293 |
> |
|
294 |
> |
if (echoheader) { /* echo line */ |
295 |
|
putchar('\t'); |
296 |
< |
fputs(s, stdout); |
296 |
> |
return(fputs(s, stdout)); |
297 |
|
} |
298 |
+ |
return(0); |
299 |
|
} |
300 |
|
|
301 |
|
|
302 |
< |
checkfile() /* ready a file */ |
302 |
> |
static void |
303 |
> |
checkfile(int orig) /* ready a file */ |
304 |
|
{ |
305 |
< |
register int i; |
305 |
> |
int i; |
306 |
|
/* process header */ |
307 |
< |
fputs(input[nfiles].name, stdout); |
308 |
< |
fputs(":\n", stdout); |
309 |
< |
getheader(input[nfiles].fp, tputs, NULL); |
310 |
< |
if (wrongformat) { |
307 |
> |
gotview = 0; |
308 |
> |
if (echoheader) { |
309 |
> |
fputs(input[nfiles].name, stdout); |
310 |
> |
fputs(":\n", stdout); |
311 |
> |
} |
312 |
> |
getheader(input[nfiles].fp, headline, &orig); |
313 |
> |
if (wrongformat < 0) { |
314 |
|
eputs(input[nfiles].name); |
315 |
< |
eputs(": not in Radiance picture format\n"); |
315 |
> |
eputs(": not a Radiance picture\n"); |
316 |
|
quit(1); |
317 |
|
} |
318 |
< |
if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != (YMAJOR|YDECR)) { |
318 |
> |
if (wrongformat > 0) { |
319 |
> |
wputs(input[nfiles].name); |
320 |
> |
wputs(": warning -- incompatible picture format\n"); |
321 |
> |
} |
322 |
> |
if (!gotview || setview(&input[nfiles].vw) != NULL) |
323 |
> |
input[nfiles].vw.type = 0; |
324 |
> |
else if (commvp == NULL) |
325 |
> |
commvp = &input[nfiles].vw; |
326 |
> |
if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
327 |
|
eputs(input[nfiles].name); |
328 |
|
eputs(": bad picture size\n"); |
329 |
|
quit(1); |
330 |
|
} |
331 |
< |
if (xres == 0 && yres == 0) { |
332 |
< |
xres = xpos; |
333 |
< |
yres = ypos; |
334 |
< |
} else if (xpos != xres || ypos != yres) { |
331 |
> |
if (xmax == 0 && ymax == 0) { |
332 |
> |
xmax = scanlen(&input[nfiles].rs); |
333 |
> |
ymax = numscans(&input[nfiles].rs); |
334 |
> |
} else if (scanlen(&input[nfiles].rs) != xmax || |
335 |
> |
numscans(&input[nfiles].rs) != ymax) { |
336 |
|
eputs(input[nfiles].name); |
337 |
|
eputs(": resolution mismatch\n"); |
338 |
|
quit(1); |
339 |
|
} |
340 |
|
/* allocate scanlines */ |
341 |
|
for (i = 0; i < WINSIZ; i++) |
342 |
< |
input[nfiles].scan[i] = (COLOR *)emalloc(xres*sizeof(COLOR)); |
342 |
> |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR)); |
343 |
|
} |
344 |
|
|
345 |
|
|
346 |
< |
init() /* perform final setup */ |
346 |
> |
static double |
347 |
> |
rgb_bright( |
348 |
> |
COLOR clr |
349 |
> |
) |
350 |
|
{ |
351 |
< |
double l_colin(), l_coef(); |
352 |
< |
register int i; |
353 |
< |
/* prime input */ |
354 |
< |
for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
355 |
< |
advance(); |
351 |
> |
return(bright(clr)); |
352 |
> |
} |
353 |
> |
|
354 |
> |
|
355 |
> |
static double |
356 |
> |
xyz_bright( |
357 |
> |
COLOR clr |
358 |
> |
) |
359 |
> |
{ |
360 |
> |
return(clr[CIEY]); |
361 |
> |
} |
362 |
> |
|
363 |
> |
|
364 |
> |
double (*ourbright)() = rgb_bright; |
365 |
> |
|
366 |
> |
|
367 |
> |
static void |
368 |
> |
init(void) /* perform final setup */ |
369 |
> |
{ |
370 |
> |
int i; |
371 |
|
/* define constants */ |
372 |
+ |
varset("PI", ':', PI); |
373 |
|
varset(vnfiles, ':', (double)nfiles); |
374 |
< |
varset(vxres, ':', (double)xres); |
375 |
< |
varset(vyres, ':', (double)yres); |
374 |
> |
varset(vxmax, ':', (double)xmax); |
375 |
> |
varset(vymax, ':', (double)ymax); |
376 |
|
/* set functions */ |
377 |
|
for (i = 0; i < 3; i++) { |
378 |
< |
funset(vcolcoef[i], 1, ':', l_coef); |
378 |
> |
funset(vcolexp[i], 1, ':', l_expos); |
379 |
|
funset(vcolin[i], 1, '=', l_colin); |
380 |
|
} |
381 |
< |
funset(vbrtcoef, 1, ':', l_coef); |
381 |
> |
funset(vbrtexp, 1, ':', l_expos); |
382 |
|
funset(vbrtin, 1, '=', l_colin); |
383 |
+ |
funset(vpixaspect, 1, ':', l_pixaspect); |
384 |
+ |
for (i = 0; i < 7; i++) |
385 |
+ |
funset(vray[i], 1, '=', l_ray); |
386 |
+ |
funset(vpsize, 1, '=', l_psize); |
387 |
+ |
/* set brightness function */ |
388 |
+ |
if (!strcmp(ourfmt, CIEFMT)) { |
389 |
+ |
varset(vwhteff, ':', 1.0); |
390 |
+ |
ourbright = xyz_bright; |
391 |
+ |
} else |
392 |
+ |
varset(vwhteff, ':', WHTEFFICACY); |
393 |
+ |
/* these may be overridden */ |
394 |
+ |
varset(vxres, ':', (double)xmax); |
395 |
+ |
varset(vyres, ':', (double)ymax); |
396 |
|
} |
397 |
|
|
398 |
|
|
399 |
< |
combine() /* combine pictures */ |
399 |
> |
static void |
400 |
> |
combine(void) /* combine pictures */ |
401 |
|
{ |
402 |
|
EPNODE *coldef[3], *brtdef; |
403 |
|
COLOR *scanout; |
404 |
|
double d; |
405 |
< |
register int i, j; |
405 |
> |
int i, j; |
406 |
|
/* check defined variables */ |
407 |
|
for (j = 0; j < 3; j++) { |
408 |
|
if (vardefined(vcolout[j])) |
416 |
|
brtdef = NULL; |
417 |
|
/* allocate scanline */ |
418 |
|
scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
419 |
+ |
/* set input position */ |
420 |
+ |
yscan = ymax+MIDSCN; |
421 |
|
/* combine files */ |
422 |
|
for (ypos = yres-1; ypos >= 0; ypos--) { |
423 |
|
advance(); |
424 |
|
varset(vypos, '=', (double)ypos); |
425 |
|
for (xpos = 0; xpos < xres; xpos++) { |
426 |
+ |
xscan = (xpos+.5)*xmax/xres; |
427 |
|
varset(vxpos, '=', (double)xpos); |
428 |
|
eclock++; |
429 |
|
if (brtdef != NULL) { |
438 |
|
} else { |
439 |
|
d = 0.0; |
440 |
|
for (i = 0; i < nfiles; i++) |
441 |
< |
d += colval(input[i].scan[MIDSCN][xpos],j); |
441 |
> |
d += colval(input[i].scan[MIDSCN][xscan],j); |
442 |
|
} |
443 |
|
if (d < 0.0) |
444 |
|
d = 0.0; |
451 |
|
quit(1); |
452 |
|
} |
453 |
|
} |
454 |
< |
efree(scanout); |
454 |
> |
efree((char *)scanout); |
455 |
|
} |
456 |
|
|
457 |
|
|
458 |
< |
advance() /* read in next scanline */ |
458 |
> |
static void |
459 |
> |
advance(void) /* read in data for next scanline */ |
460 |
|
{ |
461 |
< |
register COLOR *st; |
462 |
< |
register int i, j; |
461 |
> |
int ytarget; |
462 |
> |
COLOR *st; |
463 |
> |
int i, j; |
464 |
|
|
465 |
< |
for (i = 0; i < nfiles; i++) { |
466 |
< |
st = input[i].scan[WINSIZ-1]; |
467 |
< |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
468 |
< |
input[i].scan[j] = input[i].scan[j-1]; |
469 |
< |
input[i].scan[0] = st; |
470 |
< |
if (ypos < MIDSCN) /* hit bottom */ |
471 |
< |
continue; |
472 |
< |
if (freadscan(st, xres, input[i].fp) < 0) { |
473 |
< |
eputs(input[i].name); |
474 |
< |
eputs(": read error\n"); |
475 |
< |
quit(1); |
465 |
> |
for (ytarget = (ypos+.5)*ymax/yres; yscan > ytarget; yscan--) |
466 |
> |
for (i = 0; i < nfiles; i++) { |
467 |
> |
st = input[i].scan[WINSIZ-1]; |
468 |
> |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
469 |
> |
input[i].scan[j] = input[i].scan[j-1]; |
470 |
> |
input[i].scan[0] = st; |
471 |
> |
if (yscan <= MIDSCN) /* hit bottom? */ |
472 |
> |
continue; |
473 |
> |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
474 |
> |
eputs(input[i].name); |
475 |
> |
eputs(": read error\n"); |
476 |
> |
quit(1); |
477 |
> |
} |
478 |
> |
for (j = 0; j < xmax; j++) /* adjust color */ |
479 |
> |
multcolor(st[j], input[i].coef); |
480 |
|
} |
315 |
– |
for (j = 0; j < xres; j++) /* adjust color */ |
316 |
– |
multcolor(st[j], input[i].coef); |
317 |
– |
} |
481 |
|
} |
482 |
|
|
483 |
|
|
484 |
< |
double |
485 |
< |
l_coef(nam) /* return picture coefficients */ |
486 |
< |
register char *nam; |
484 |
> |
static double |
485 |
> |
l_expos( /* return picture exposure */ |
486 |
> |
char *nam |
487 |
> |
) |
488 |
|
{ |
489 |
< |
register int fn, n; |
489 |
> |
int fn, n; |
490 |
|
double d; |
491 |
|
|
492 |
|
d = argument(1); |
493 |
< |
if (d > -.5 && d < .5) |
330 |
< |
return((double)nfiles); |
331 |
< |
fn = d - .5; |
332 |
< |
if (fn < 0 || fn >= nfiles) { |
493 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
494 |
|
errno = EDOM; |
495 |
|
return(0.0); |
496 |
|
} |
497 |
< |
if (nam == vbrtcoef) |
498 |
< |
return(bright(input[fn].coef)); |
497 |
> |
if (d < 0.5) |
498 |
> |
return((double)nfiles); |
499 |
> |
fn = d - 0.5; |
500 |
> |
if (nam == vbrtexp) |
501 |
> |
return((*ourbright)(input[fn].expos)); |
502 |
|
n = 3; |
503 |
|
while (n--) |
504 |
< |
if (nam == vcolcoef[n]) |
505 |
< |
return(colval(input[fn].coef,n)); |
506 |
< |
eputs("Bad call to l_coef()!\n"); |
504 |
> |
if (nam == vcolexp[n]) |
505 |
> |
return(colval(input[fn].expos,n)); |
506 |
> |
eputs("Bad call to l_expos()!\n"); |
507 |
|
quit(1); |
508 |
+ |
return 1; /* pro forma return */ |
509 |
|
} |
510 |
|
|
511 |
|
|
512 |
< |
double |
513 |
< |
l_colin(nam) /* return color value for picture */ |
349 |
< |
register char *nam; |
512 |
> |
static double |
513 |
> |
l_pixaspect(char *nm) /* return pixel aspect ratio */ |
514 |
|
{ |
515 |
|
int fn; |
352 |
– |
register int n, xoff, yoff; |
516 |
|
double d; |
517 |
|
|
518 |
|
d = argument(1); |
519 |
< |
if (d > -.5 && d < .5) |
519 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
520 |
> |
errno = EDOM; |
521 |
> |
return(0.0); |
522 |
> |
} |
523 |
> |
if (d < 0.5) |
524 |
|
return((double)nfiles); |
525 |
< |
fn = d - .5; |
526 |
< |
if (fn < 0 || fn >= nfiles) { |
525 |
> |
fn = d - 0.5; |
526 |
> |
return(input[fn].pa); |
527 |
> |
} |
528 |
> |
|
529 |
> |
|
530 |
> |
static double |
531 |
> |
l_colin( /* return color value for picture */ |
532 |
> |
char *nam |
533 |
> |
) |
534 |
> |
{ |
535 |
> |
int fn; |
536 |
> |
int n, xoff, yoff; |
537 |
> |
double d; |
538 |
> |
|
539 |
> |
d = argument(1); |
540 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
541 |
|
errno = EDOM; |
542 |
|
return(0.0); |
543 |
|
} |
544 |
+ |
if (d < 0.5) |
545 |
+ |
return((double)nfiles); |
546 |
+ |
fn = d - 0.5; |
547 |
|
xoff = yoff = 0; |
548 |
|
n = nargum(); |
549 |
|
if (n >= 2) { |
550 |
|
d = argument(2); |
551 |
|
if (d < 0.0) { |
552 |
|
xoff = d-.5; |
553 |
< |
if (xpos+xoff < 0) |
554 |
< |
xoff = -xpos; |
553 |
> |
if (xscan+xoff < 0) |
554 |
> |
xoff = -xscan; |
555 |
|
} else { |
556 |
|
xoff = d+.5; |
557 |
< |
if (xpos+xoff >= xres) |
558 |
< |
xoff = xres-1-xpos; |
557 |
> |
if (xscan+xoff >= xmax) |
558 |
> |
xoff = xmax-1-xscan; |
559 |
|
} |
560 |
|
} |
561 |
|
if (n >= 3) { |
564 |
|
yoff = d-.5; |
565 |
|
if (yoff+MIDSCN < 0) |
566 |
|
yoff = -MIDSCN; |
567 |
< |
if (ypos+yoff < 0) |
568 |
< |
yoff = -ypos; |
567 |
> |
if (yscan+yoff < 0) |
568 |
> |
yoff = -yscan; |
569 |
|
} else { |
570 |
|
yoff = d+.5; |
571 |
|
if (yoff+MIDSCN >= WINSIZ) |
572 |
|
yoff = WINSIZ-1-MIDSCN; |
573 |
< |
if (ypos+yoff >= yres) |
574 |
< |
yoff = yres-1-ypos; |
573 |
> |
if (yscan+yoff >= ymax) |
574 |
> |
yoff = ymax-1-yscan; |
575 |
|
} |
576 |
|
} |
577 |
|
if (nam == vbrtin) |
578 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
578 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
579 |
|
n = 3; |
580 |
|
while (n--) |
581 |
|
if (nam == vcolin[n]) |
582 |
< |
return(colval(input[fn].scan[MIDSCN+yoff][xpos+xoff],n)); |
582 |
> |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
583 |
|
eputs("Bad call to l_colin()!\n"); |
584 |
|
quit(1); |
585 |
+ |
return 1; /* pro forma return */ |
586 |
|
} |
587 |
|
|
588 |
|
|
589 |
< |
wputs(msg) |
590 |
< |
char *msg; |
589 |
> |
static double |
590 |
> |
l_ray( /* return ray origin or direction */ |
591 |
> |
char *nam |
592 |
> |
) |
593 |
|
{ |
594 |
+ |
static unsigned long ltick[MAXINP]; |
595 |
+ |
static FVECT lorg[MAXINP], ldir[MAXINP]; |
596 |
+ |
static double ldist[MAXINP]; |
597 |
+ |
RREAL loc[2]; |
598 |
+ |
double d; |
599 |
+ |
int fn; |
600 |
+ |
int i; |
601 |
+ |
|
602 |
+ |
d = argument(1); |
603 |
+ |
if (d <= -0.5 || d >= nfiles+0.5) { |
604 |
+ |
errno = EDOM; |
605 |
+ |
return(0.0); |
606 |
+ |
} |
607 |
+ |
if (d < 0.5) |
608 |
+ |
return((double)nfiles); |
609 |
+ |
fn = d - 0.5; |
610 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
611 |
+ |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
612 |
+ |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
613 |
+ |
ldist[fn] = -1.0; |
614 |
+ |
if (input[fn].vw.type == 0) |
615 |
+ |
errno = EDOM; |
616 |
+ |
else { |
617 |
+ |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
618 |
+ |
ldist[fn] = viewray(lorg[fn], ldir[fn], |
619 |
+ |
&input[fn].vw, loc[0], loc[1]); |
620 |
+ |
} |
621 |
+ |
ltick[fn] = eclock; |
622 |
+ |
} |
623 |
+ |
if (nam == vray[i=6]) |
624 |
+ |
return(ldist[fn]); |
625 |
+ |
while (i--) |
626 |
+ |
if (nam == vray[i]) |
627 |
+ |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
628 |
+ |
eputs("Bad call to l_ray()!\n"); |
629 |
+ |
quit(1); |
630 |
+ |
return 1; /* pro forma return */ |
631 |
+ |
} |
632 |
+ |
|
633 |
+ |
|
634 |
+ |
static double |
635 |
+ |
l_psize(char *nm) /* compute pixel size in steradians */ |
636 |
+ |
{ |
637 |
+ |
static unsigned long ltick[MAXINP]; |
638 |
+ |
static double psize[MAXINP]; |
639 |
+ |
FVECT dir0, org, dirx, diry; |
640 |
+ |
RREAL locx[2], locy[2]; |
641 |
+ |
double d; |
642 |
+ |
int fn; |
643 |
+ |
int i; |
644 |
+ |
|
645 |
+ |
d = argument(1); |
646 |
+ |
if (d <= -0.5 || d >= nfiles+0.5) { |
647 |
+ |
errno = EDOM; |
648 |
+ |
return(0.0); |
649 |
+ |
} |
650 |
+ |
if (d < 0.5) |
651 |
+ |
return((double)nfiles); |
652 |
+ |
fn = d - 0.5; |
653 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
654 |
+ |
psize[fn] = 0.0; |
655 |
+ |
if (input[fn].vw.type == 0) |
656 |
+ |
errno = EDOM; |
657 |
+ |
else if (input[fn].vw.type != VT_PAR && |
658 |
+ |
funvalue(vray[6], 1, &d) >= -FTINY) { |
659 |
+ |
for (i = 0; i < 3; i++) |
660 |
+ |
dir0[i] = funvalue(vray[3+i], 1, &d); |
661 |
+ |
pix2loc(locx, &input[fn].rs, xscan+1, ymax-1-yscan); |
662 |
+ |
pix2loc(locy, &input[fn].rs, xscan, ymax-yscan); |
663 |
+ |
if (viewray(org, dirx, &input[fn].vw, |
664 |
+ |
locx[0], locx[1]) >= -FTINY && |
665 |
+ |
viewray(org, diry, &input[fn].vw, |
666 |
+ |
locy[0], locy[1]) >= -FTINY) { |
667 |
+ |
/* approximate solid angle */ |
668 |
+ |
for (i = 0; i < 3; i++) { |
669 |
+ |
dirx[i] -= dir0[i]; |
670 |
+ |
diry[i] -= dir0[i]; |
671 |
+ |
} |
672 |
+ |
fcross(dir0, dirx, diry); |
673 |
+ |
psize[fn] = VLEN(dir0); |
674 |
+ |
} |
675 |
+ |
} |
676 |
+ |
ltick[fn] = eclock; |
677 |
+ |
} |
678 |
+ |
return(psize[fn]); |
679 |
+ |
} |
680 |
+ |
|
681 |
+ |
|
682 |
+ |
extern void |
683 |
+ |
wputs(char *msg) |
684 |
+ |
{ |
685 |
|
if (!nowarn) |
686 |
|
eputs(msg); |
687 |
|
} |
688 |
|
|
689 |
|
|
690 |
< |
eputs(msg) |
691 |
< |
char *msg; |
690 |
> |
extern void |
691 |
> |
eputs(char *msg) |
692 |
|
{ |
693 |
|
fputs(msg, stderr); |
694 |
|
} |
695 |
|
|
696 |
|
|
697 |
< |
quit(code) |
698 |
< |
int code; |
697 |
> |
extern void |
698 |
> |
quit(int code) /* exit gracefully */ |
699 |
|
{ |
700 |
+ |
int i; |
701 |
+ |
/* close input files */ |
702 |
+ |
for (i = 0; i < nfiles; i++) |
703 |
+ |
if (input[i].name == Command) |
704 |
+ |
pclose(input[i].fp); |
705 |
+ |
else |
706 |
+ |
fclose(input[i].fp); |
707 |
|
exit(code); |
708 |
|
} |