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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 |
> |
static const char RCSid[] = "$Id$"; |
3 |
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#endif |
6 |
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|
4 |
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/* |
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* Combine picture files according to calcomp functions. |
6 |
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* |
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* 1/4/89 |
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*/ |
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|
10 |
< |
#include <stdio.h> |
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|
12 |
< |
#include <errno.h> |
16 |
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|
10 |
> |
#include "platform.h" |
11 |
> |
#include "standard.h" |
12 |
> |
#include "rtprocess.h" |
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#include "color.h" |
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|
14 |
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#include "calcomp.h" |
15 |
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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 |
< |
#define WINSIZ 9 /* scanline window size */ |
19 |
< |
#define MIDSCN 4 /* current scan position */ |
18 |
> |
#define WINSIZ 64 /* scanline window size */ |
19 |
> |
#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 |
< |
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 */ |
26 |
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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 */ |
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COLOR expos; /* recorded exposure */ |
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|
32 |
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int nfiles; /* number of input files */ |
33 |
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|
34 |
< |
char *vcolin[3] = {"ri", "gi", "bi"}; |
35 |
< |
char *vcolout[3] = {"ro", "go", "bo"}; |
34 |
> |
char ourfmt[LPICFMT+1] = PICFMT; /* input picture format */ |
35 |
> |
|
36 |
> |
char StandardInput[] = "<stdin>"; |
37 |
> |
char Command[] = "<Command>"; |
38 |
> |
char vcolin[3][4] = {"ri", "gi", "bi"}; |
39 |
> |
char vcolout[3][4] = {"ro", "go", "bo"}; |
40 |
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char vbrtin[] = "li"; |
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char vbrtout[] = "lo"; |
42 |
< |
char *vcolexp[3] = {"re", "ge", "be"}; |
42 |
> |
char vcolexp[3][4] = {"re", "ge", "be"}; |
43 |
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char vbrtexp[] = "le"; |
44 |
+ |
char vpixaspect[] = "pa"; |
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|
46 |
< |
#define vnfiles "nfiles" |
45 |
< |
#define vxres "xres" |
46 |
< |
#define vyres "yres" |
47 |
< |
#define vxpos "x" |
48 |
< |
#define vypos "y" |
46 |
> |
char vray[7][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz", "T"}; |
47 |
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|
48 |
+ |
char vpsize[] = "S"; |
49 |
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|
50 |
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char vnfiles[] = "nfiles"; |
51 |
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char vwhteff[] = "WE"; |
52 |
+ |
char vxmax[] = "xmax"; |
53 |
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char vymax[] = "ymax"; |
54 |
+ |
char vxres[] = "xres"; |
55 |
+ |
char vyres[] = "yres"; |
56 |
+ |
char vxpos[] = "x"; |
57 |
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char vypos[] = "y"; |
58 |
+ |
|
59 |
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int nowarn = 0; /* no warning messages? */ |
60 |
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|
61 |
< |
int original = 0; /* origninal values? */ |
61 |
> |
int xmax = 0, ymax = 0; /* input resolution */ |
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|
63 |
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int xres=0, yres=0; /* picture resolution */ |
63 |
> |
int xscan, yscan; /* input position */ |
64 |
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|
65 |
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int xpos, ypos; /* picture position */ |
65 |
> |
int xres, yres; /* output resolution */ |
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|
67 |
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int xpos, ypos; /* output position */ |
68 |
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|
69 |
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char *progname; /* global argv[0] */ |
70 |
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|
71 |
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int wrongformat = 0; |
72 |
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int gotview; |
73 |
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|
74 |
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|
75 |
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main(argc, argv) |
76 |
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int argc; |
77 |
< |
char *argv[]; |
75 |
> |
static gethfunc tabputs; |
76 |
> |
static void checkfile(void); |
77 |
> |
static double rgb_bright(COLOR clr); |
78 |
> |
static double xyz_bright(COLOR clr); |
79 |
> |
static void init(void); |
80 |
> |
static void combine(void); |
81 |
> |
static void advance(void); |
82 |
> |
static double l_expos(char *nam); |
83 |
> |
static double l_pixaspect(char *nm); |
84 |
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static double l_colin(char *nam); |
85 |
> |
static double l_ray(char *nam); |
86 |
> |
static double l_psize(char *nm); |
87 |
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|
88 |
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|
89 |
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int |
90 |
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main( |
91 |
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int argc, |
92 |
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char *argv[] |
93 |
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) |
94 |
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{ |
95 |
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int original; |
96 |
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double f; |
97 |
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int a, i; |
97 |
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int a; |
98 |
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SET_DEFAULT_BINARY(); |
99 |
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SET_FILE_BINARY(stdin); |
100 |
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SET_FILE_BINARY(stdout); |
101 |
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progname = argv[0]; |
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/* scan options */ |
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for (a = 1; a < argc; a++) { |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
72 |
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xres = atoi(argv[++a]); |
73 |
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continue; |
107 |
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case 'y': |
108 |
< |
yres = atoi(argv[++a]); |
108 |
> |
a++; |
109 |
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continue; |
110 |
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case 'w': |
111 |
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nowarn = !nowarn; |
117 |
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} |
118 |
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break; |
119 |
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} |
120 |
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newheader("RADIANCE", stdout); /* start header */ |
121 |
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fputnow(stdout); |
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/* process files */ |
123 |
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for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
125 |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
126 |
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input[nfiles].vw = stdview; |
127 |
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input[nfiles].pa = 1.0; |
128 |
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} |
129 |
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nfiles = 0; |
130 |
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original = 0; |
131 |
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for ( ; a < argc; a++) { |
132 |
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if (nfiles >= MAXINP) { |
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eputs(argv[0]); |
137 |
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if (argv[a][0] == '-') |
138 |
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switch (argv[a][1]) { |
139 |
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case '\0': |
140 |
< |
input[nfiles].name = "<stdin>"; |
140 |
> |
input[nfiles].name = StandardInput; |
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input[nfiles].fp = stdin; |
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break; |
143 |
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case 'o': |
144 |
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original++; |
145 |
< |
break; |
145 |
> |
continue; |
146 |
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case 's': |
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f = atof(argv[++a]); |
148 |
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scalecolor(input[nfiles].coef, f); |
156 |
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goto usage; |
157 |
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} |
158 |
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else { |
159 |
< |
input[nfiles].name = argv[a]; |
160 |
< |
input[nfiles].fp = fopen(argv[a], "r"); |
159 |
> |
if (argv[a][0] == '!') { |
160 |
> |
input[nfiles].name = Command; |
161 |
> |
input[nfiles].fp = popen(argv[a]+1, "r"); |
162 |
> |
} else { |
163 |
> |
input[nfiles].name = argv[a]; |
164 |
> |
input[nfiles].fp = fopen(argv[a], "r"); |
165 |
> |
} |
166 |
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if (input[nfiles].fp == NULL) { |
167 |
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perror(argv[a]); |
168 |
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quit(1); |
169 |
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} |
170 |
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} |
171 |
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checkfile(); |
172 |
< |
original = 0; |
172 |
> |
if (original) { |
173 |
> |
colval(input[nfiles].coef,RED) /= |
174 |
> |
colval(input[nfiles].expos,RED); |
175 |
> |
colval(input[nfiles].coef,GRN) /= |
176 |
> |
colval(input[nfiles].expos,GRN); |
177 |
> |
colval(input[nfiles].coef,BLU) /= |
178 |
> |
colval(input[nfiles].expos,BLU); |
179 |
> |
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
180 |
> |
} |
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nfiles++; |
182 |
+ |
original = 0; |
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} |
184 |
< |
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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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
190 |
+ |
varset(vxres, ':', eval(argv[++a])); |
191 |
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continue; |
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case 'y': |
193 |
< |
a++; |
193 |
> |
varset(vyres, ':', eval(argv[++a])); |
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continue; |
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case 'w': |
196 |
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continue; |
203 |
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} |
204 |
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break; |
205 |
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} |
206 |
+ |
/* set/get output resolution */ |
207 |
+ |
if (!vardefined(vxres)) |
208 |
+ |
varset(vxres, ':', (double)xmax); |
209 |
+ |
if (!vardefined(vyres)) |
210 |
+ |
varset(vyres, ':', (double)ymax); |
211 |
+ |
xres = varvalue(vxres) + .5; |
212 |
+ |
yres = varvalue(vyres) + .5; |
213 |
+ |
if (xres <= 0 || yres <= 0) { |
214 |
+ |
eputs(argv[0]); |
215 |
+ |
eputs(": illegal output resolution\n"); |
216 |
+ |
quit(1); |
217 |
+ |
} |
218 |
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/* complete header */ |
219 |
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printargs(argc, argv, stdout); |
220 |
< |
fputformat(COLRFMT, stdout); |
220 |
> |
if (strcmp(ourfmt, PICFMT)) |
221 |
> |
fputformat(ourfmt, stdout); /* print format if known */ |
222 |
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putchar('\n'); |
223 |
< |
fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
223 |
> |
fprtresolu(xres, yres, stdout); |
224 |
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/* combine pictures */ |
225 |
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combine(); |
226 |
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quit(0); |
228 |
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eputs("Usage: "); |
229 |
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eputs(argv[0]); |
230 |
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eputs( |
231 |
< |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
231 |
> |
" [-w][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] pic ..]\n"); |
232 |
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quit(1); |
233 |
+ |
return 1; /* pro forma return */ |
234 |
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} |
235 |
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|
236 |
|
|
237 |
< |
tputs(s) /* put out string preceded by a tab */ |
238 |
< |
char *s; |
237 |
> |
static int |
238 |
> |
tabputs( /* put out string preceded by a tab */ |
239 |
> |
char *s, |
240 |
> |
void *p |
241 |
> |
) |
242 |
|
{ |
243 |
|
char fmt[32]; |
244 |
|
double d; |
245 |
|
COLOR ctmp; |
246 |
|
|
247 |
< |
if (isformat(s)) { /* check format */ |
248 |
< |
formatval(fmt, s); |
249 |
< |
wrongformat = strcmp(fmt, COLRFMT); |
250 |
< |
return; /* don't echo */ |
247 |
> |
if (isheadid(s)) /* header id */ |
248 |
> |
return(0); /* don't echo */ |
249 |
> |
if (formatval(fmt, s)) { /* check format */ |
250 |
> |
if (globmatch(ourfmt, fmt)) { |
251 |
> |
wrongformat = 0; |
252 |
> |
strcpy(ourfmt, fmt); |
253 |
> |
} else |
254 |
> |
wrongformat = globmatch(PICFMT, fmt) ? 1 : -1; |
255 |
> |
return(0); /* don't echo */ |
256 |
|
} |
257 |
|
if (isexpos(s)) { /* exposure */ |
258 |
|
d = exposval(s); |
259 |
|
scalecolor(input[nfiles].expos, d); |
184 |
– |
if (original) |
185 |
– |
scalecolor(input[nfiles].coef, 1.0/d); |
260 |
|
} else if (iscolcor(s)) { /* color correction */ |
261 |
|
colcorval(ctmp, s); |
262 |
|
multcolor(input[nfiles].expos, ctmp); |
263 |
< |
if (original) { |
264 |
< |
colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
265 |
< |
colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
266 |
< |
colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
193 |
< |
} |
194 |
< |
} |
263 |
> |
} else if (isaspect(s)) |
264 |
> |
input[nfiles].pa *= aspectval(s); |
265 |
> |
else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
266 |
> |
gotview++; |
267 |
|
/* echo line */ |
268 |
|
putchar('\t'); |
269 |
< |
fputs(s, stdout); |
269 |
> |
return(fputs(s, stdout)); |
270 |
|
} |
271 |
|
|
272 |
|
|
273 |
< |
checkfile() /* ready a file */ |
273 |
> |
static void |
274 |
> |
checkfile(void) /* ready a file */ |
275 |
|
{ |
276 |
|
register int i; |
277 |
|
/* process header */ |
278 |
+ |
gotview = 0; |
279 |
|
fputs(input[nfiles].name, stdout); |
280 |
|
fputs(":\n", stdout); |
281 |
< |
getheader(input[nfiles].fp, tputs, NULL); |
282 |
< |
if (wrongformat) { |
281 |
> |
getheader(input[nfiles].fp, tabputs, NULL); |
282 |
> |
if (wrongformat < 0) { |
283 |
|
eputs(input[nfiles].name); |
284 |
< |
eputs(": not in Radiance picture format\n"); |
284 |
> |
eputs(": not a Radiance picture\n"); |
285 |
|
quit(1); |
286 |
|
} |
287 |
< |
if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != (YMAJOR|YDECR)) { |
287 |
> |
if (wrongformat > 0) { |
288 |
> |
wputs(input[nfiles].name); |
289 |
> |
wputs(": warning -- incompatible picture format\n"); |
290 |
> |
} |
291 |
> |
if (!gotview || setview(&input[nfiles].vw) != NULL) |
292 |
> |
input[nfiles].vw.type = 0; |
293 |
> |
if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
294 |
|
eputs(input[nfiles].name); |
295 |
|
eputs(": bad picture size\n"); |
296 |
|
quit(1); |
297 |
|
} |
298 |
< |
if (xres == 0 && yres == 0) { |
299 |
< |
xres = xpos; |
300 |
< |
yres = ypos; |
301 |
< |
} else if (xpos != xres || ypos != yres) { |
298 |
> |
if (xmax == 0 && ymax == 0) { |
299 |
> |
xmax = scanlen(&input[nfiles].rs); |
300 |
> |
ymax = numscans(&input[nfiles].rs); |
301 |
> |
} else if (scanlen(&input[nfiles].rs) != xmax || |
302 |
> |
numscans(&input[nfiles].rs) != ymax) { |
303 |
|
eputs(input[nfiles].name); |
304 |
|
eputs(": resolution mismatch\n"); |
305 |
|
quit(1); |
306 |
|
} |
307 |
|
/* allocate scanlines */ |
308 |
|
for (i = 0; i < WINSIZ; i++) |
309 |
< |
input[nfiles].scan[i] = (COLOR *)emalloc(xres*sizeof(COLOR)); |
309 |
> |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR)); |
310 |
|
} |
311 |
|
|
312 |
|
|
313 |
< |
init() /* perform final setup */ |
313 |
> |
static double |
314 |
> |
rgb_bright( |
315 |
> |
COLOR clr |
316 |
> |
) |
317 |
|
{ |
318 |
< |
double l_colin(), l_expos(); |
318 |
> |
return(bright(clr)); |
319 |
> |
} |
320 |
> |
|
321 |
> |
|
322 |
> |
static double |
323 |
> |
xyz_bright( |
324 |
> |
COLOR clr |
325 |
> |
) |
326 |
> |
{ |
327 |
> |
return(clr[CIEY]); |
328 |
> |
} |
329 |
> |
|
330 |
> |
|
331 |
> |
double (*ourbright)() = rgb_bright; |
332 |
> |
|
333 |
> |
|
334 |
> |
static void |
335 |
> |
init(void) /* perform final setup */ |
336 |
> |
{ |
337 |
|
register int i; |
236 |
– |
/* prime input */ |
237 |
– |
for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
238 |
– |
advance(); |
338 |
|
/* define constants */ |
339 |
+ |
varset("PI", ':', PI); |
340 |
|
varset(vnfiles, ':', (double)nfiles); |
341 |
< |
varset(vxres, ':', (double)xres); |
342 |
< |
varset(vyres, ':', (double)yres); |
341 |
> |
varset(vxmax, ':', (double)xmax); |
342 |
> |
varset(vymax, ':', (double)ymax); |
343 |
|
/* set functions */ |
344 |
|
for (i = 0; i < 3; i++) { |
345 |
|
funset(vcolexp[i], 1, ':', l_expos); |
347 |
|
} |
348 |
|
funset(vbrtexp, 1, ':', l_expos); |
349 |
|
funset(vbrtin, 1, '=', l_colin); |
350 |
+ |
funset(vpixaspect, 1, ':', l_pixaspect); |
351 |
+ |
for (i = 0; i < 7; i++) |
352 |
+ |
funset(vray[i], 1, '=', l_ray); |
353 |
+ |
funset(vpsize, 1, '=', l_psize); |
354 |
+ |
/* set brightness function */ |
355 |
+ |
if (!strcmp(ourfmt, CIEFMT)) { |
356 |
+ |
varset(vwhteff, ':', 1.0); |
357 |
+ |
ourbright = xyz_bright; |
358 |
+ |
} else |
359 |
+ |
varset(vwhteff, ':', WHTEFFICACY); |
360 |
|
} |
361 |
|
|
362 |
|
|
363 |
< |
combine() /* combine pictures */ |
363 |
> |
static void |
364 |
> |
combine(void) /* combine pictures */ |
365 |
|
{ |
366 |
|
EPNODE *coldef[3], *brtdef; |
367 |
|
COLOR *scanout; |
380 |
|
brtdef = NULL; |
381 |
|
/* allocate scanline */ |
382 |
|
scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
383 |
+ |
/* set input position */ |
384 |
+ |
yscan = ymax+MIDSCN; |
385 |
|
/* combine files */ |
386 |
|
for (ypos = yres-1; ypos >= 0; ypos--) { |
387 |
|
advance(); |
388 |
|
varset(vypos, '=', (double)ypos); |
389 |
|
for (xpos = 0; xpos < xres; xpos++) { |
390 |
+ |
xscan = (long)xpos*xmax/xres; |
391 |
|
varset(vxpos, '=', (double)xpos); |
392 |
|
eclock++; |
393 |
|
if (brtdef != NULL) { |
402 |
|
} else { |
403 |
|
d = 0.0; |
404 |
|
for (i = 0; i < nfiles; i++) |
405 |
< |
d += colval(input[i].scan[MIDSCN][xpos],j); |
405 |
> |
d += colval(input[i].scan[MIDSCN][xscan],j); |
406 |
|
} |
407 |
|
if (d < 0.0) |
408 |
|
d = 0.0; |
415 |
|
quit(1); |
416 |
|
} |
417 |
|
} |
418 |
< |
efree(scanout); |
418 |
> |
efree((char *)scanout); |
419 |
|
} |
420 |
|
|
421 |
|
|
422 |
< |
advance() /* read in next scanline */ |
422 |
> |
static void |
423 |
> |
advance(void) /* read in data for next scanline */ |
424 |
|
{ |
425 |
+ |
int ytarget; |
426 |
|
register COLOR *st; |
427 |
|
register int i, j; |
428 |
|
|
429 |
< |
for (i = 0; i < nfiles; i++) { |
430 |
< |
st = input[i].scan[WINSIZ-1]; |
431 |
< |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
432 |
< |
input[i].scan[j] = input[i].scan[j-1]; |
433 |
< |
input[i].scan[0] = st; |
434 |
< |
if (ypos < MIDSCN) /* hit bottom */ |
435 |
< |
continue; |
436 |
< |
if (freadscan(st, xres, input[i].fp) < 0) { |
437 |
< |
eputs(input[i].name); |
438 |
< |
eputs(": read error\n"); |
439 |
< |
quit(1); |
429 |
> |
for (ytarget = (long)ypos*ymax/yres; yscan > ytarget; yscan--) |
430 |
> |
for (i = 0; i < nfiles; i++) { |
431 |
> |
st = input[i].scan[WINSIZ-1]; |
432 |
> |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
433 |
> |
input[i].scan[j] = input[i].scan[j-1]; |
434 |
> |
input[i].scan[0] = st; |
435 |
> |
if (yscan <= MIDSCN) /* hit bottom? */ |
436 |
> |
continue; |
437 |
> |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
438 |
> |
eputs(input[i].name); |
439 |
> |
eputs(": read error\n"); |
440 |
> |
quit(1); |
441 |
> |
} |
442 |
> |
if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
443 |
> |
fabs(colval(input[i].coef,GRN)-1.0) > 1e-3 || |
444 |
> |
fabs(colval(input[i].coef,BLU)-1.0) > 1e-3) |
445 |
> |
for (j = 0; j < xmax; j++) /* adjust color */ |
446 |
> |
multcolor(st[j], input[i].coef); |
447 |
|
} |
325 |
– |
for (j = 0; j < xres; j++) /* adjust color */ |
326 |
– |
multcolor(st[j], input[i].coef); |
327 |
– |
} |
448 |
|
} |
449 |
|
|
450 |
|
|
451 |
< |
double |
452 |
< |
l_expos(nam) /* return picture exposure */ |
453 |
< |
register char *nam; |
451 |
> |
static double |
452 |
> |
l_expos( /* return picture exposure */ |
453 |
> |
register char *nam |
454 |
> |
) |
455 |
|
{ |
456 |
|
register int fn, n; |
336 |
– |
double d; |
457 |
|
|
458 |
< |
d = argument(1); |
459 |
< |
if (d > -.5 && d < .5) |
460 |
< |
return((double)nfiles); |
341 |
< |
fn = d - .5; |
342 |
< |
if (fn < 0 || fn >= nfiles) { |
343 |
< |
errno = EDOM; |
344 |
< |
return(0.0); |
345 |
< |
} |
458 |
> |
fn = argument(1) - .5; |
459 |
> |
if (fn < 0 || fn >= nfiles) |
460 |
> |
return(1.0); |
461 |
|
if (nam == vbrtexp) |
462 |
< |
return(bright(input[fn].expos)); |
462 |
> |
return((*ourbright)(input[fn].expos)); |
463 |
|
n = 3; |
464 |
|
while (n--) |
465 |
|
if (nam == vcolexp[n]) |
466 |
|
return(colval(input[fn].expos,n)); |
467 |
|
eputs("Bad call to l_expos()!\n"); |
468 |
|
quit(1); |
469 |
+ |
return 1; /* pro forma return */ |
470 |
|
} |
471 |
|
|
472 |
|
|
473 |
< |
double |
474 |
< |
l_colin(nam) /* return color value for picture */ |
359 |
< |
register char *nam; |
473 |
> |
static double |
474 |
> |
l_pixaspect(char *nm) /* return pixel aspect ratio */ |
475 |
|
{ |
476 |
+ |
register int fn; |
477 |
+ |
|
478 |
+ |
fn = argument(1) - .5; |
479 |
+ |
if (fn < 0 || fn >= nfiles) |
480 |
+ |
return(1.0); |
481 |
+ |
return(input[fn].pa); |
482 |
+ |
} |
483 |
+ |
|
484 |
+ |
|
485 |
+ |
static double |
486 |
+ |
l_colin( /* return color value for picture */ |
487 |
+ |
register char *nam |
488 |
+ |
) |
489 |
+ |
{ |
490 |
|
int fn; |
491 |
|
register int n, xoff, yoff; |
492 |
|
double d; |
493 |
|
|
494 |
< |
d = argument(1); |
366 |
< |
if (d > -.5 && d < .5) |
367 |
< |
return((double)nfiles); |
368 |
< |
fn = d - .5; |
494 |
> |
fn = argument(1) - .5; |
495 |
|
if (fn < 0 || fn >= nfiles) { |
496 |
|
errno = EDOM; |
497 |
|
return(0.0); |
502 |
|
d = argument(2); |
503 |
|
if (d < 0.0) { |
504 |
|
xoff = d-.5; |
505 |
< |
if (xpos+xoff < 0) |
506 |
< |
xoff = -xpos; |
505 |
> |
if (xscan+xoff < 0) |
506 |
> |
xoff = -xscan; |
507 |
|
} else { |
508 |
|
xoff = d+.5; |
509 |
< |
if (xpos+xoff >= xres) |
510 |
< |
xoff = xres-1-xpos; |
509 |
> |
if (xscan+xoff >= xmax) |
510 |
> |
xoff = xmax-1-xscan; |
511 |
|
} |
512 |
|
} |
513 |
|
if (n >= 3) { |
516 |
|
yoff = d-.5; |
517 |
|
if (yoff+MIDSCN < 0) |
518 |
|
yoff = -MIDSCN; |
519 |
< |
if (ypos+yoff < 0) |
520 |
< |
yoff = -ypos; |
519 |
> |
if (yscan+yoff < 0) |
520 |
> |
yoff = -yscan; |
521 |
|
} else { |
522 |
|
yoff = d+.5; |
523 |
|
if (yoff+MIDSCN >= WINSIZ) |
524 |
|
yoff = WINSIZ-1-MIDSCN; |
525 |
< |
if (ypos+yoff >= yres) |
526 |
< |
yoff = yres-1-ypos; |
525 |
> |
if (yscan+yoff >= ymax) |
526 |
> |
yoff = ymax-1-yscan; |
527 |
|
} |
528 |
|
} |
529 |
|
if (nam == vbrtin) |
530 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
530 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
531 |
|
n = 3; |
532 |
|
while (n--) |
533 |
|
if (nam == vcolin[n]) |
534 |
< |
return(colval(input[fn].scan[MIDSCN+yoff][xpos+xoff],n)); |
534 |
> |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
535 |
|
eputs("Bad call to l_colin()!\n"); |
536 |
|
quit(1); |
537 |
+ |
return 1; /* pro forma return */ |
538 |
|
} |
539 |
|
|
540 |
|
|
541 |
< |
wputs(msg) |
542 |
< |
char *msg; |
541 |
> |
static double |
542 |
> |
l_ray( /* return ray origin or direction */ |
543 |
> |
register char *nam |
544 |
> |
) |
545 |
|
{ |
546 |
+ |
static unsigned long ltick[MAXINP]; |
547 |
+ |
static FVECT lorg[MAXINP], ldir[MAXINP]; |
548 |
+ |
static double ldist[MAXINP]; |
549 |
+ |
RREAL loc[2]; |
550 |
+ |
int fn; |
551 |
+ |
register int i; |
552 |
+ |
|
553 |
+ |
fn = argument(1) - .5; |
554 |
+ |
if (fn < 0 || fn >= nfiles) { |
555 |
+ |
errno = EDOM; |
556 |
+ |
return(0.0); |
557 |
+ |
} |
558 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
559 |
+ |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
560 |
+ |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
561 |
+ |
ldist[fn] = -1.0; |
562 |
+ |
if (input[fn].vw.type == 0) |
563 |
+ |
errno = EDOM; |
564 |
+ |
else { |
565 |
+ |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
566 |
+ |
ldist[fn] = viewray(lorg[fn], ldir[fn], |
567 |
+ |
&input[fn].vw, loc[0], loc[1]); |
568 |
+ |
} |
569 |
+ |
ltick[fn] = eclock; |
570 |
+ |
} |
571 |
+ |
if (nam == vray[i=6]) |
572 |
+ |
return(ldist[fn]); |
573 |
+ |
while (i--) |
574 |
+ |
if (nam == vray[i]) |
575 |
+ |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
576 |
+ |
eputs("Bad call to l_ray()!\n"); |
577 |
+ |
quit(1); |
578 |
+ |
return 1; /* pro forma return */ |
579 |
+ |
} |
580 |
+ |
|
581 |
+ |
|
582 |
+ |
static double |
583 |
+ |
l_psize(char *nm) /* compute pixel size in steradians */ |
584 |
+ |
{ |
585 |
+ |
static unsigned long ltick[MAXINP]; |
586 |
+ |
static double psize[MAXINP]; |
587 |
+ |
FVECT dir0, org, dirx, diry; |
588 |
+ |
RREAL locx[2], locy[2]; |
589 |
+ |
double d; |
590 |
+ |
int fn; |
591 |
+ |
register int i; |
592 |
+ |
|
593 |
+ |
d = argument(1); |
594 |
+ |
if (d < .5 || d >= nfiles+.5) { |
595 |
+ |
errno = EDOM; |
596 |
+ |
return(0.0); |
597 |
+ |
} |
598 |
+ |
fn = d - .5; |
599 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
600 |
+ |
psize[fn] = 0.0; |
601 |
+ |
if (input[fn].vw.type == 0) |
602 |
+ |
errno = EDOM; |
603 |
+ |
else if (input[fn].vw.type != VT_PAR && |
604 |
+ |
funvalue(vray[6], 1, &d) >= -FTINY) { |
605 |
+ |
for (i = 0; i < 3; i++) |
606 |
+ |
dir0[i] = funvalue(vray[3+i], 1, &d); |
607 |
+ |
pix2loc(locx, &input[fn].rs, xscan+1, ymax-1-yscan); |
608 |
+ |
pix2loc(locy, &input[fn].rs, xscan, ymax-yscan); |
609 |
+ |
if (viewray(org, dirx, &input[fn].vw, |
610 |
+ |
locx[0], locx[1]) >= -FTINY && |
611 |
+ |
viewray(org, diry, &input[fn].vw, |
612 |
+ |
locy[0], locy[1]) >= -FTINY) { |
613 |
+ |
/* approximate solid angle */ |
614 |
+ |
for (i = 0; i < 3; i++) { |
615 |
+ |
dirx[i] -= dir0[i]; |
616 |
+ |
diry[i] -= dir0[i]; |
617 |
+ |
} |
618 |
+ |
fcross(dir0, dirx, diry); |
619 |
+ |
psize[fn] = VLEN(dir0); |
620 |
+ |
} |
621 |
+ |
} |
622 |
+ |
ltick[fn] = eclock; |
623 |
+ |
} |
624 |
+ |
return(psize[fn]); |
625 |
+ |
} |
626 |
+ |
|
627 |
+ |
|
628 |
+ |
extern void |
629 |
+ |
wputs(char *msg) |
630 |
+ |
{ |
631 |
|
if (!nowarn) |
632 |
|
eputs(msg); |
633 |
|
} |
634 |
|
|
635 |
|
|
636 |
< |
eputs(msg) |
637 |
< |
char *msg; |
636 |
> |
extern void |
637 |
> |
eputs(char *msg) |
638 |
|
{ |
639 |
|
fputs(msg, stderr); |
640 |
|
} |
641 |
|
|
642 |
|
|
643 |
< |
quit(code) |
644 |
< |
int code; |
643 |
> |
extern void |
644 |
> |
quit(int code) /* exit gracefully */ |
645 |
|
{ |
646 |
+ |
register int i; |
647 |
+ |
/* close input files */ |
648 |
+ |
for (i = 0; i < nfiles; i++) |
649 |
+ |
if (input[i].name == Command) |
650 |
+ |
pclose(input[i].fp); |
651 |
+ |
else |
652 |
+ |
fclose(input[i].fp); |
653 |
|
exit(code); |
654 |
|
} |