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< |
/* Copyright (c) 1991 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1992 Regents of the University of California */ |
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|
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
10 |
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* 1/4/89 |
11 |
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*/ |
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|
13 |
< |
#include <stdio.h> |
13 |
> |
#include "standard.h" |
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|
15 |
– |
#include <errno.h> |
16 |
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|
15 |
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#include "color.h" |
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|
17 |
+ |
#include "resolu.h" |
18 |
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|
19 |
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#include "calcomp.h" |
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|
21 |
+ |
#include "view.h" |
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+ |
|
23 |
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#define MAXINP 32 /* maximum number of input files */ |
24 |
< |
#define WINSIZ 9 /* scanline window size */ |
25 |
< |
#define MIDSCN 4 /* current scan position */ |
24 |
> |
#define WINSIZ 17 /* scanline window size */ |
25 |
> |
#define MIDSCN ((WINSIZ-1)/2+1) |
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|
25 |
– |
#define BRT (-1) /* special index for brightness */ |
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|
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struct { |
28 |
< |
char *name; /* file name */ |
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> |
char *name; /* file or command name */ |
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FILE *fp; /* stream pointer */ |
30 |
+ |
VIEW vw; /* view for picture */ |
31 |
+ |
RESOLU rs; /* image resolution and orientation */ |
32 |
+ |
float pa; /* pixel aspect ratio */ |
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COLOR *scan[WINSIZ]; /* input scanline window */ |
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COLOR coef; /* coefficient */ |
35 |
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COLOR expos; /* recorded exposure */ |
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} input[MAXINP]; /* input pictures */ |
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|
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int nfiles; /* number of input files */ |
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|
40 |
< |
char *vcolin[3] = {"ri", "gi", "bi"}; |
41 |
< |
char *vcolout[3] = {"ro", "go", "bo"}; |
40 |
> |
char ourfmt[LPICFMT+1] = PICFMT; /* input picture format */ |
41 |
> |
|
42 |
> |
char Command[] = "<Command>"; |
43 |
> |
char vcolin[3][4] = {"ri", "gi", "bi"}; |
44 |
> |
char vcolout[3][4] = {"ro", "go", "bo"}; |
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char vbrtin[] = "li"; |
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char vbrtout[] = "lo"; |
47 |
< |
char *vcolcoef[3] = {"rc", "gc", "bc"}; |
48 |
< |
char vbrtcoef[] = "lc"; |
47 |
> |
char vcolexp[3][4] = {"re", "ge", "be"}; |
48 |
> |
char vbrtexp[] = "le"; |
49 |
> |
char vpixaspect[] = "pa"; |
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|
51 |
< |
#define vnfiles "nfiles" |
44 |
< |
#define vxres "xres" |
45 |
< |
#define vyres "yres" |
46 |
< |
#define vxpos "x" |
47 |
< |
#define vypos "y" |
51 |
> |
char vray[7][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz", "T"}; |
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|
53 |
+ |
char vpsize[] = "S"; |
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|
55 |
+ |
char vnfiles[] = "nfiles"; |
56 |
+ |
char vwhteff[] = "WE"; |
57 |
+ |
char vxmax[] = "xmax"; |
58 |
+ |
char vymax[] = "ymax"; |
59 |
+ |
char vxres[] = "xres"; |
60 |
+ |
char vyres[] = "yres"; |
61 |
+ |
char vxpos[] = "x"; |
62 |
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char vypos[] = "y"; |
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+ |
|
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int nowarn = 0; /* no warning messages? */ |
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|
66 |
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int original = 0; /* origninal values? */ |
66 |
> |
int xmax = 0, ymax = 0; /* input resolution */ |
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|
68 |
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int xres=0, yres=0; /* picture resolution */ |
68 |
> |
int xscan, yscan; /* input position */ |
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|
70 |
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int xpos, ypos; /* picture position */ |
70 |
> |
int xres, yres; /* output resolution */ |
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|
72 |
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int xpos, ypos; /* output position */ |
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|
74 |
+ |
char *progname; /* global argv[0] */ |
75 |
+ |
|
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int wrongformat = 0; |
77 |
+ |
int gotview; |
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|
79 |
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FILE *popen(); |
80 |
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|
81 |
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extern char *emalloc(); |
82 |
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|
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|
84 |
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main(argc, argv) |
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int argc; |
86 |
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char *argv[]; |
87 |
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{ |
88 |
+ |
int original; |
89 |
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double f; |
90 |
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int a, i; |
91 |
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#ifdef MSDOS |
92 |
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extern int _fmode; |
93 |
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_fmode = O_BINARY; |
94 |
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setmode(fileno(stdin), O_BINARY); |
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setmode(fileno(stdout), O_BINARY); |
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#endif |
97 |
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progname = argv[0]; |
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/* scan options */ |
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for (a = 1; a < argc; a++) { |
100 |
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if (argv[a][0] == '-') |
101 |
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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]); |
104 |
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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; |
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case 'o': |
80 |
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original = !original; |
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continue; |
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case 'f': |
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case 'e': |
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a++; |
113 |
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} |
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break; |
115 |
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} |
116 |
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newheader("RADIANCE", stdout); /* start header */ |
117 |
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/* process files */ |
118 |
< |
for (nfiles = 0; nfiles < MAXINP; nfiles++) |
118 |
> |
for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
120 |
+ |
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
121 |
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copystruct(&input[nfiles].vw, &stdview); |
122 |
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input[nfiles].pa = 1.0; |
123 |
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} |
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nfiles = 0; |
125 |
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original = 0; |
126 |
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for ( ; a < argc; a++) { |
127 |
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if (nfiles >= MAXINP) { |
128 |
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eputs(argv[0]); |
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input[nfiles].name = "<stdin>"; |
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input[nfiles].fp = stdin; |
137 |
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break; |
138 |
+ |
case 'o': |
139 |
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original++; |
140 |
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continue; |
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case 's': |
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f = atof(argv[++a]); |
143 |
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scalecolor(input[nfiles].coef, f); |
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goto usage; |
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} |
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else { |
154 |
< |
input[nfiles].name = argv[a]; |
155 |
< |
input[nfiles].fp = fopen(argv[a], "r"); |
154 |
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if (argv[a][0] == '!') { |
155 |
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input[nfiles].name = Command; |
156 |
> |
input[nfiles].fp = popen(argv[a]+1, "r"); |
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> |
} else { |
158 |
> |
input[nfiles].name = argv[a]; |
159 |
> |
input[nfiles].fp = fopen(argv[a], "r"); |
160 |
> |
} |
161 |
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if (input[nfiles].fp == NULL) { |
162 |
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perror(argv[a]); |
163 |
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quit(1); |
164 |
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} |
165 |
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} |
166 |
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checkfile(); |
167 |
+ |
if (original) { |
168 |
+ |
colval(input[nfiles].coef,RED) /= |
169 |
+ |
colval(input[nfiles].expos,RED); |
170 |
+ |
colval(input[nfiles].coef,GRN) /= |
171 |
+ |
colval(input[nfiles].expos,GRN); |
172 |
+ |
colval(input[nfiles].coef,BLU) /= |
173 |
+ |
colval(input[nfiles].expos,BLU); |
174 |
+ |
} |
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nfiles++; |
176 |
+ |
original = 0; |
177 |
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} |
178 |
< |
init(); /* set constant expressions */ |
178 |
> |
init(); /* set constants */ |
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/* go back and get expressions */ |
180 |
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for (a = 1; a < argc; a++) { |
181 |
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if (argv[a][0] == '-') |
182 |
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switch (argv[a][1]) { |
183 |
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case 'x': |
184 |
+ |
varset(vxres, ':', eval(argv[++a])); |
185 |
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continue; |
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case 'y': |
187 |
< |
a++; |
187 |
> |
varset(vyres, ':', eval(argv[++a])); |
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continue; |
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case 'w': |
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– |
case 'o': |
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continue; |
191 |
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case 'f': |
192 |
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fcompile(argv[++a]); |
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} |
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break; |
199 |
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} |
200 |
+ |
/* set/get output resolution */ |
201 |
+ |
if (!vardefined(vxres)) |
202 |
+ |
varset(vxres, ':', (double)xmax); |
203 |
+ |
if (!vardefined(vyres)) |
204 |
+ |
varset(vyres, ':', (double)ymax); |
205 |
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xres = varvalue(vxres) + .5; |
206 |
+ |
yres = varvalue(vyres) + .5; |
207 |
+ |
if (xres <= 0 || yres <= 0) { |
208 |
+ |
eputs(argv[0]); |
209 |
+ |
eputs(": illegal output resolution\n"); |
210 |
+ |
quit(1); |
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+ |
} |
212 |
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/* complete header */ |
213 |
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printargs(argc, argv, stdout); |
214 |
< |
fputformat(COLRFMT, stdout); |
214 |
> |
if (strcmp(ourfmt, PICFMT)) |
215 |
> |
fputformat(ourfmt, stdout); /* print format if known */ |
216 |
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putchar('\n'); |
217 |
< |
fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
217 |
> |
fprtresolu(xres, yres, stdout); |
218 |
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/* combine pictures */ |
219 |
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combine(); |
220 |
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quit(0); |
222 |
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eputs("Usage: "); |
223 |
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eputs(argv[0]); |
224 |
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eputs( |
225 |
< |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
225 |
> |
" [-w][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] pic ..]\n"); |
226 |
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quit(1); |
227 |
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} |
228 |
|
|
234 |
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double d; |
235 |
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COLOR ctmp; |
236 |
|
|
237 |
< |
if (isformat(s)) { /* check format */ |
238 |
< |
formatval(fmt, s); |
239 |
< |
wrongformat = strcmp(fmt, COLRFMT); |
240 |
< |
} else if (original && isexpos(s)) { /* exposure */ |
241 |
< |
d = 1.0/exposval(s); |
242 |
< |
scalecolor(input[nfiles].coef, d); |
243 |
< |
} else if (original && iscolcor(s)) { /* color correction */ |
244 |
< |
colcorval(ctmp, s); |
245 |
< |
colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
182 |
< |
colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
183 |
< |
colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
184 |
< |
} else { /* echo unaffected line */ |
185 |
< |
putchar('\t'); |
186 |
< |
fputs(s, stdout); |
237 |
> |
if (isheadid(s)) /* header id */ |
238 |
> |
return; /* don't echo */ |
239 |
> |
if (formatval(fmt, s)) { /* check format */ |
240 |
> |
if (globmatch(ourfmt, fmt)) { |
241 |
> |
wrongformat = 0; |
242 |
> |
strcpy(ourfmt, fmt); |
243 |
> |
} else |
244 |
> |
wrongformat = 1; |
245 |
> |
return; /* don't echo */ |
246 |
|
} |
247 |
+ |
if (isexpos(s)) { /* exposure */ |
248 |
+ |
d = exposval(s); |
249 |
+ |
scalecolor(input[nfiles].expos, d); |
250 |
+ |
} else if (iscolcor(s)) { /* color correction */ |
251 |
+ |
colcorval(ctmp, s); |
252 |
+ |
multcolor(input[nfiles].expos, ctmp); |
253 |
+ |
} else if (isaspect(s)) |
254 |
+ |
input[nfiles].pa *= aspectval(s); |
255 |
+ |
else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
256 |
+ |
gotview++; |
257 |
+ |
/* echo line */ |
258 |
+ |
putchar('\t'); |
259 |
+ |
fputs(s, stdout); |
260 |
|
} |
261 |
|
|
262 |
|
|
264 |
|
{ |
265 |
|
register int i; |
266 |
|
/* process header */ |
267 |
+ |
gotview = 0; |
268 |
|
fputs(input[nfiles].name, stdout); |
269 |
|
fputs(":\n", stdout); |
270 |
|
getheader(input[nfiles].fp, tputs, NULL); |
273 |
|
eputs(": not in Radiance picture format\n"); |
274 |
|
quit(1); |
275 |
|
} |
276 |
< |
if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != (YMAJOR|YDECR)) { |
276 |
> |
if (!gotview || setview(&input[nfiles].vw) != NULL) |
277 |
> |
input[nfiles].vw.type = 0; |
278 |
> |
if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
279 |
|
eputs(input[nfiles].name); |
280 |
|
eputs(": bad picture size\n"); |
281 |
|
quit(1); |
282 |
|
} |
283 |
< |
if (xres == 0 && yres == 0) { |
284 |
< |
xres = xpos; |
285 |
< |
yres = ypos; |
286 |
< |
} else if (xpos != xres || ypos != yres) { |
283 |
> |
if (xmax == 0 && ymax == 0) { |
284 |
> |
xmax = scanlen(&input[nfiles].rs); |
285 |
> |
ymax = numscans(&input[nfiles].rs); |
286 |
> |
} else if (scanlen(&input[nfiles].rs) != xmax || |
287 |
> |
numscans(&input[nfiles].rs) != ymax) { |
288 |
|
eputs(input[nfiles].name); |
289 |
|
eputs(": resolution mismatch\n"); |
290 |
|
quit(1); |
291 |
|
} |
292 |
|
/* allocate scanlines */ |
293 |
|
for (i = 0; i < WINSIZ; i++) |
294 |
< |
input[nfiles].scan[i] = (COLOR *)emalloc(xres*sizeof(COLOR)); |
294 |
> |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR)); |
295 |
|
} |
296 |
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|
297 |
|
|
298 |
< |
init() /* perform final setup */ |
298 |
> |
double |
299 |
> |
rgb_bright(clr) |
300 |
> |
COLOR clr; |
301 |
|
{ |
302 |
< |
double l_colin(), l_coef(); |
302 |
> |
return(bright(clr)); |
303 |
> |
} |
304 |
> |
|
305 |
> |
|
306 |
> |
double |
307 |
> |
xyz_bright(clr) |
308 |
> |
COLOR clr; |
309 |
> |
{ |
310 |
> |
return(clr[CIEY]); |
311 |
> |
} |
312 |
> |
|
313 |
> |
|
314 |
> |
double (*ourbright)() = rgb_bright; |
315 |
> |
|
316 |
> |
|
317 |
> |
init() /* perform final setup */ |
318 |
> |
{ |
319 |
> |
double l_colin(), l_expos(), l_pixaspect(), l_ray(), l_psize(); |
320 |
|
register int i; |
226 |
– |
/* prime input */ |
227 |
– |
for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
228 |
– |
advance(); |
321 |
|
/* define constants */ |
322 |
|
varset(vnfiles, ':', (double)nfiles); |
323 |
< |
varset(vxres, ':', (double)xres); |
324 |
< |
varset(vyres, ':', (double)yres); |
323 |
> |
varset(vxmax, ':', (double)xmax); |
324 |
> |
varset(vymax, ':', (double)ymax); |
325 |
|
/* set functions */ |
326 |
|
for (i = 0; i < 3; i++) { |
327 |
< |
funset(vcolcoef[i], 1, ':', l_coef); |
327 |
> |
funset(vcolexp[i], 1, ':', l_expos); |
328 |
|
funset(vcolin[i], 1, '=', l_colin); |
329 |
|
} |
330 |
< |
funset(vbrtcoef, 1, ':', l_coef); |
330 |
> |
funset(vbrtexp, 1, ':', l_expos); |
331 |
|
funset(vbrtin, 1, '=', l_colin); |
332 |
+ |
funset(vpixaspect, 1, ':', l_pixaspect); |
333 |
+ |
for (i = 0; i < 7; i++) |
334 |
+ |
funset(vray[i], 1, '=', l_ray); |
335 |
+ |
funset(vpsize, 1, '=', l_psize); |
336 |
+ |
/* set brightness function */ |
337 |
+ |
if (!strcmp(ourfmt, CIEFMT)) { |
338 |
+ |
varset(vwhteff, ':', 1.0); |
339 |
+ |
ourbright = xyz_bright; |
340 |
+ |
} else |
341 |
+ |
varset(vwhteff, ':', WHTEFFICACY); |
342 |
|
} |
343 |
|
|
344 |
|
|
361 |
|
brtdef = NULL; |
362 |
|
/* allocate scanline */ |
363 |
|
scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
364 |
+ |
/* set input position */ |
365 |
+ |
yscan = ymax+MIDSCN; |
366 |
|
/* combine files */ |
367 |
|
for (ypos = yres-1; ypos >= 0; ypos--) { |
368 |
|
advance(); |
369 |
|
varset(vypos, '=', (double)ypos); |
370 |
|
for (xpos = 0; xpos < xres; xpos++) { |
371 |
+ |
xscan = (long)xpos*xmax/xres; |
372 |
|
varset(vxpos, '=', (double)xpos); |
373 |
|
eclock++; |
374 |
|
if (brtdef != NULL) { |
383 |
|
} else { |
384 |
|
d = 0.0; |
385 |
|
for (i = 0; i < nfiles; i++) |
386 |
< |
d += colval(input[i].scan[MIDSCN][xpos],j); |
386 |
> |
d += colval(input[i].scan[MIDSCN][xscan],j); |
387 |
|
} |
388 |
|
if (d < 0.0) |
389 |
|
d = 0.0; |
400 |
|
} |
401 |
|
|
402 |
|
|
403 |
< |
advance() /* read in next scanline */ |
403 |
> |
advance() /* read in data for next scanline */ |
404 |
|
{ |
405 |
+ |
int ytarget; |
406 |
|
register COLOR *st; |
407 |
|
register int i, j; |
408 |
|
|
409 |
< |
for (i = 0; i < nfiles; i++) { |
410 |
< |
st = input[i].scan[WINSIZ-1]; |
411 |
< |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
412 |
< |
input[i].scan[j] = input[i].scan[j-1]; |
413 |
< |
input[i].scan[0] = st; |
414 |
< |
if (ypos < MIDSCN) /* hit bottom */ |
415 |
< |
continue; |
416 |
< |
if (freadscan(st, xres, input[i].fp) < 0) { |
417 |
< |
eputs(input[i].name); |
418 |
< |
eputs(": read error\n"); |
419 |
< |
quit(1); |
409 |
> |
for (ytarget = (long)ypos*ymax/yres; yscan > ytarget; yscan--) |
410 |
> |
for (i = 0; i < nfiles; i++) { |
411 |
> |
st = input[i].scan[WINSIZ-1]; |
412 |
> |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
413 |
> |
input[i].scan[j] = input[i].scan[j-1]; |
414 |
> |
input[i].scan[0] = st; |
415 |
> |
if (yscan <= MIDSCN) /* hit bottom? */ |
416 |
> |
continue; |
417 |
> |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
418 |
> |
eputs(input[i].name); |
419 |
> |
eputs(": read error\n"); |
420 |
> |
quit(1); |
421 |
> |
} |
422 |
> |
if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
423 |
> |
fabs(colval(input[i].coef,GRN)-1.0) > 1e-3 || |
424 |
> |
fabs(colval(input[i].coef,BLU)-1.0) > 1e-3) |
425 |
> |
for (j = 0; j < xmax; j++) /* adjust color */ |
426 |
> |
multcolor(st[j], input[i].coef); |
427 |
|
} |
315 |
– |
for (j = 0; j < xres; j++) /* adjust color */ |
316 |
– |
multcolor(st[j], input[i].coef); |
317 |
– |
} |
428 |
|
} |
429 |
|
|
430 |
|
|
431 |
|
double |
432 |
< |
l_coef(nam) /* return picture coefficients */ |
432 |
> |
l_expos(nam) /* return picture exposure */ |
433 |
|
register char *nam; |
434 |
|
{ |
435 |
|
register int fn, n; |
326 |
– |
double d; |
436 |
|
|
437 |
< |
d = argument(1); |
438 |
< |
if (d > -.5 && d < .5) |
439 |
< |
return((double)nfiles); |
440 |
< |
fn = d - .5; |
441 |
< |
if (fn < 0 || fn >= nfiles) { |
333 |
< |
errno = EDOM; |
334 |
< |
return(0.0); |
335 |
< |
} |
336 |
< |
if (nam == vbrtcoef) |
337 |
< |
return(bright(input[fn].coef)); |
437 |
> |
fn = argument(1) - .5; |
438 |
> |
if (fn < 0 || fn >= nfiles) |
439 |
> |
return(1.0); |
440 |
> |
if (nam == vbrtexp) |
441 |
> |
return((*ourbright)(input[fn].expos)); |
442 |
|
n = 3; |
443 |
|
while (n--) |
444 |
< |
if (nam == vcolcoef[n]) |
445 |
< |
return(colval(input[fn].coef,n)); |
446 |
< |
eputs("Bad call to l_coef()!\n"); |
444 |
> |
if (nam == vcolexp[n]) |
445 |
> |
return(colval(input[fn].expos,n)); |
446 |
> |
eputs("Bad call to l_expos()!\n"); |
447 |
|
quit(1); |
448 |
|
} |
449 |
|
|
450 |
|
|
451 |
|
double |
452 |
+ |
l_pixaspect() /* return pixel aspect ratio */ |
453 |
+ |
{ |
454 |
+ |
register int fn; |
455 |
+ |
|
456 |
+ |
fn = argument(1) - .5; |
457 |
+ |
if (fn < 0 || fn >= nfiles) |
458 |
+ |
return(1.0); |
459 |
+ |
return(input[fn].pa); |
460 |
+ |
} |
461 |
+ |
|
462 |
+ |
|
463 |
+ |
double |
464 |
|
l_colin(nam) /* return color value for picture */ |
465 |
|
register char *nam; |
466 |
|
{ |
468 |
|
register int n, xoff, yoff; |
469 |
|
double d; |
470 |
|
|
471 |
< |
d = argument(1); |
356 |
< |
if (d > -.5 && d < .5) |
357 |
< |
return((double)nfiles); |
358 |
< |
fn = d - .5; |
471 |
> |
fn = argument(1) - .5; |
472 |
|
if (fn < 0 || fn >= nfiles) { |
473 |
|
errno = EDOM; |
474 |
|
return(0.0); |
479 |
|
d = argument(2); |
480 |
|
if (d < 0.0) { |
481 |
|
xoff = d-.5; |
482 |
< |
if (xpos+xoff < 0) |
483 |
< |
xoff = -xpos; |
482 |
> |
if (xscan+xoff < 0) |
483 |
> |
xoff = -xscan; |
484 |
|
} else { |
485 |
|
xoff = d+.5; |
486 |
< |
if (xpos+xoff >= xres) |
487 |
< |
xoff = xres-1-xpos; |
486 |
> |
if (xscan+xoff >= xmax) |
487 |
> |
xoff = xmax-1-xscan; |
488 |
|
} |
489 |
|
} |
490 |
|
if (n >= 3) { |
493 |
|
yoff = d-.5; |
494 |
|
if (yoff+MIDSCN < 0) |
495 |
|
yoff = -MIDSCN; |
496 |
< |
if (ypos+yoff < 0) |
497 |
< |
yoff = -ypos; |
496 |
> |
if (yscan+yoff < 0) |
497 |
> |
yoff = -yscan; |
498 |
|
} else { |
499 |
|
yoff = d+.5; |
500 |
|
if (yoff+MIDSCN >= WINSIZ) |
501 |
|
yoff = WINSIZ-1-MIDSCN; |
502 |
< |
if (ypos+yoff >= yres) |
503 |
< |
yoff = yres-1-ypos; |
502 |
> |
if (yscan+yoff >= ymax) |
503 |
> |
yoff = ymax-1-yscan; |
504 |
|
} |
505 |
|
} |
506 |
|
if (nam == vbrtin) |
507 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
507 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
508 |
|
n = 3; |
509 |
|
while (n--) |
510 |
|
if (nam == vcolin[n]) |
511 |
< |
return(colval(input[fn].scan[MIDSCN+yoff][xpos+xoff],n)); |
511 |
> |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
512 |
|
eputs("Bad call to l_colin()!\n"); |
513 |
|
quit(1); |
514 |
|
} |
515 |
|
|
516 |
|
|
517 |
+ |
double |
518 |
+ |
l_ray(nam) /* return ray origin or direction */ |
519 |
+ |
register char *nam; |
520 |
+ |
{ |
521 |
+ |
static unsigned long ltick[MAXINP]; |
522 |
+ |
static FVECT lorg[MAXINP], ldir[MAXINP]; |
523 |
+ |
static double ldist[MAXINP]; |
524 |
+ |
FLOAT loc[2]; |
525 |
+ |
int fn; |
526 |
+ |
register int i; |
527 |
+ |
|
528 |
+ |
fn = argument(1) - .5; |
529 |
+ |
if (fn < 0 || fn >= nfiles) { |
530 |
+ |
errno = EDOM; |
531 |
+ |
return(0.0); |
532 |
+ |
} |
533 |
+ |
if (ltick[fn] < eclock) { /* need to compute? */ |
534 |
+ |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
535 |
+ |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
536 |
+ |
if (input[fn].vw.type == 0) |
537 |
+ |
errno = EDOM; |
538 |
+ |
else { |
539 |
+ |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
540 |
+ |
ldist[fn] = viewray(lorg[fn], ldir[fn], |
541 |
+ |
&input[fn].vw, loc[0], loc[1]); |
542 |
+ |
} |
543 |
+ |
ltick[fn] = eclock; |
544 |
+ |
} |
545 |
+ |
if (nam == vray[i=6]) |
546 |
+ |
return(ldist[fn]); |
547 |
+ |
while (i--) |
548 |
+ |
if (nam == vray[i]) |
549 |
+ |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
550 |
+ |
eputs("Bad call to l_ray()!\n"); |
551 |
+ |
quit(1); |
552 |
+ |
} |
553 |
+ |
|
554 |
+ |
|
555 |
+ |
double |
556 |
+ |
l_psize() /* compute pixel size in steradians */ |
557 |
+ |
{ |
558 |
+ |
static unsigned long ltick[MAXINP]; |
559 |
+ |
static double psize[MAXINP]; |
560 |
+ |
FVECT dir0, org, dirx, diry; |
561 |
+ |
FLOAT locx[2], locy[2]; |
562 |
+ |
double d; |
563 |
+ |
int fn; |
564 |
+ |
register int i; |
565 |
+ |
|
566 |
+ |
d = argument(1); |
567 |
+ |
if (d < .5 || d >= nfiles+.5) { |
568 |
+ |
errno = EDOM; |
569 |
+ |
return(0.0); |
570 |
+ |
} |
571 |
+ |
fn = d - .5; |
572 |
+ |
if (ltick[fn] < eclock) { /* need to compute? */ |
573 |
+ |
psize[fn] = 0.0; |
574 |
+ |
if (input[fn].vw.type == 0) |
575 |
+ |
errno = EDOM; |
576 |
+ |
else if (input[fn].vw.type != VT_PAR && |
577 |
+ |
funvalue(vray[6], 1, &d) >= 0) { |
578 |
+ |
for (i = 0; i < 3; i++) |
579 |
+ |
dir0[i] = funvalue(vray[3+i], 1, &d); |
580 |
+ |
pix2loc(locx, &input[fn].rs, xscan+1, ymax-1-yscan); |
581 |
+ |
pix2loc(locy, &input[fn].rs, xscan, ymax-yscan); |
582 |
+ |
if (viewray(org, dirx, &input[fn].vw, |
583 |
+ |
locx[0], locx[1]) >= 0 && |
584 |
+ |
viewray(org, diry, &input[fn].vw, |
585 |
+ |
locy[0], locy[1]) >= 0) { |
586 |
+ |
/* approximate solid angle */ |
587 |
+ |
for (i = 0; i < 3; i++) { |
588 |
+ |
dirx[i] -= dir0[i]; |
589 |
+ |
diry[i] -= dir0[i]; |
590 |
+ |
} |
591 |
+ |
fcross(dir0, dirx, diry); |
592 |
+ |
psize[fn] = 0.5 * sqrt(DOT(dir0,dir0)); |
593 |
+ |
} |
594 |
+ |
} |
595 |
+ |
ltick[fn] = eclock; |
596 |
+ |
} |
597 |
+ |
return(psize[fn]); |
598 |
+ |
} |
599 |
+ |
|
600 |
+ |
|
601 |
|
wputs(msg) |
602 |
|
char *msg; |
603 |
|
{ |
613 |
|
} |
614 |
|
|
615 |
|
|
616 |
< |
quit(code) |
617 |
< |
int code; |
616 |
> |
quit(code) /* exit gracefully */ |
617 |
> |
int code; |
618 |
|
{ |
619 |
+ |
register int i; |
620 |
+ |
/* close input files */ |
621 |
+ |
for (i = 0; i < nfiles; i++) |
622 |
+ |
if (input[i].name == Command) |
623 |
+ |
pclose(input[i].fp); |
624 |
+ |
else |
625 |
+ |
fclose(input[i].fp); |
626 |
|
exit(code); |
627 |
|
} |