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/* Copyright (c) 1991 Regents of the University of California */ |
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|
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#ifndef lint |
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< |
static char SCCSid[] = "$SunId$ LBL"; |
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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> |
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|
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#include "platform.h" |
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#include "standard.h" |
12 |
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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 |
< |
#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 |
> |
#define MAXINP 1024 /* maximum number of input files */ |
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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 */ |
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> |
char *name; /* file or command name */ |
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FILE *fp; /* stream pointer */ |
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VIEW vw; /* view for picture */ |
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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 */ |
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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 |
> |
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"}; |
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char vbrtin[] = "li"; |
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char vbrtout[] = "lo"; |
42 |
< |
char *vcolcoef[3] = {"rc", "gc", "bc"}; |
43 |
< |
char vbrtcoef[] = "lc"; |
42 |
> |
char vcolexp[3][4] = {"re", "ge", "be"}; |
43 |
> |
char vbrtexp[] = "le"; |
44 |
> |
char vpixaspect[] = "pa"; |
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|
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< |
#define vnfiles "nfiles" |
44 |
< |
#define vxres "xres" |
45 |
< |
#define vyres "yres" |
46 |
< |
#define vxpos "x" |
47 |
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#define vypos "y" |
46 |
> |
char vray[7][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz", "T"}; |
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|
48 |
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char vpsize[] = "S"; |
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|
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char vnfiles[] = "nfiles"; |
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char vwhteff[] = "WE"; |
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char vxmax[] = "xmax"; |
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char vymax[] = "ymax"; |
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char vxres[] = "xres"; |
55 |
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char vyres[] = "yres"; |
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char vxpos[] = "x"; |
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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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|
61 |
< |
int original = 0; /* origninal values? */ |
61 |
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int xmax = 0, ymax = 0; /* input resolution */ |
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|
63 |
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int xres=0, yres=0; /* picture resolution */ |
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int xscan, yscan; /* input position */ |
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|
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int xpos, ypos; /* picture position */ |
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int xres, yres; /* output resolution */ |
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|
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int xpos, ypos; /* output position */ |
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|
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char *progname; /* global argv[0] */ |
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|
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int echoheader = 1; |
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int wrongformat = 0; |
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int gotview; |
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|
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|
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< |
main(argc, argv) |
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int argc; |
78 |
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char *argv[]; |
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static gethfunc headline; |
77 |
> |
static void checkfile(void); |
78 |
> |
static double rgb_bright(COLOR clr); |
79 |
> |
static double xyz_bright(COLOR clr); |
80 |
> |
static void init(void); |
81 |
> |
static void combine(void); |
82 |
> |
static void advance(void); |
83 |
> |
static double l_expos(char *nam); |
84 |
> |
static double l_pixaspect(char *nm); |
85 |
> |
static double l_colin(char *nam); |
86 |
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static double l_ray(char *nam); |
87 |
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static double l_psize(char *nm); |
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|
89 |
> |
|
90 |
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int |
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main( |
92 |
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int argc, |
93 |
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char *argv[] |
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) |
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{ |
96 |
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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; |
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|
100 |
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SET_DEFAULT_BINARY(); |
101 |
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SET_FILE_BINARY(stdin); |
102 |
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SET_FILE_BINARY(stdout); |
103 |
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progname = argv[0]; |
104 |
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esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
105 |
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esupport &= ~(E_OUTCHAN|E_INCHAN); |
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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': |
71 |
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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]); |
112 |
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a++; |
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continue; |
114 |
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case 'w': |
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nowarn = !nowarn; |
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continue; |
117 |
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case 'o': |
118 |
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original = !original; |
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case 'h': |
118 |
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echoheader = !echoheader; |
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continue; |
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case 'f': |
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case 'e': |
122 |
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a++; |
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continue; |
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} |
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break; |
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} |
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newheader("RADIANCE", stdout); /* start header */ |
128 |
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fputnow(stdout); |
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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); |
132 |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
133 |
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input[nfiles].vw = stdview; |
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input[nfiles].pa = 1.0; |
135 |
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} |
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nfiles = 0; |
137 |
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original = 0; |
138 |
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for ( ; a < argc; a++) { |
139 |
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if (nfiles >= MAXINP) { |
140 |
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eputs(argv[0]); |
144 |
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if (argv[a][0] == '-') |
145 |
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switch (argv[a][1]) { |
146 |
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case '\0': |
147 |
< |
input[nfiles].name = "<stdin>"; |
147 |
> |
input[nfiles].name = StandardInput; |
148 |
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input[nfiles].fp = stdin; |
149 |
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break; |
150 |
+ |
case 'o': |
151 |
+ |
original++; |
152 |
+ |
continue; |
153 |
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case 's': |
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f = atof(argv[++a]); |
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scalecolor(input[nfiles].coef, f); |
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goto usage; |
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} |
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else { |
166 |
< |
input[nfiles].name = argv[a]; |
167 |
< |
input[nfiles].fp = fopen(argv[a], "r"); |
166 |
> |
if (argv[a][0] == '!') { |
167 |
> |
input[nfiles].name = Command; |
168 |
> |
input[nfiles].fp = popen(argv[a]+1, "r"); |
169 |
> |
} else { |
170 |
> |
input[nfiles].name = argv[a]; |
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> |
input[nfiles].fp = fopen(argv[a], "r"); |
172 |
> |
} |
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if (input[nfiles].fp == NULL) { |
174 |
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perror(argv[a]); |
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quit(1); |
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} |
177 |
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} |
178 |
+ |
checkfile(); |
179 |
+ |
if (original) { |
180 |
+ |
colval(input[nfiles].coef,RED) /= |
181 |
+ |
colval(input[nfiles].expos,RED); |
182 |
+ |
colval(input[nfiles].coef,GRN) /= |
183 |
+ |
colval(input[nfiles].expos,GRN); |
184 |
+ |
colval(input[nfiles].coef,BLU) /= |
185 |
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colval(input[nfiles].expos,BLU); |
186 |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
187 |
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} |
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nfiles++; |
189 |
+ |
original = 0; |
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} |
191 |
< |
initfiles(); /* initialize files and variables */ |
191 |
> |
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': |
197 |
+ |
varset(vxres, ':', eval(argv[++a])); |
198 |
+ |
continue; |
199 |
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case 'y': |
200 |
+ |
varset(vyres, ':', eval(argv[++a])); |
201 |
+ |
continue; |
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case 'w': |
134 |
– |
case 'o': |
203 |
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continue; |
204 |
+ |
case 'h': |
205 |
+ |
continue; |
206 |
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case 'f': |
207 |
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fcompile(argv[++a]); |
208 |
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continue; |
212 |
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} |
213 |
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break; |
214 |
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} |
215 |
+ |
/* set/get output resolution */ |
216 |
+ |
if (!vardefined(vxres)) |
217 |
+ |
varset(vxres, ':', (double)xmax); |
218 |
+ |
if (!vardefined(vyres)) |
219 |
+ |
varset(vyres, ':', (double)ymax); |
220 |
+ |
xres = varvalue(vxres) + .5; |
221 |
+ |
yres = varvalue(vyres) + .5; |
222 |
+ |
if (xres <= 0 || yres <= 0) { |
223 |
+ |
eputs(argv[0]); |
224 |
+ |
eputs(": illegal output resolution\n"); |
225 |
+ |
quit(1); |
226 |
+ |
} |
227 |
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/* complete header */ |
228 |
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printargs(argc, argv, stdout); |
229 |
< |
fputformat(COLRFMT, stdout); |
229 |
> |
if (strcmp(ourfmt, PICFMT)) |
230 |
> |
fputformat(ourfmt, stdout); /* print format if known */ |
231 |
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putchar('\n'); |
232 |
< |
fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
232 |
> |
fprtresolu(xres, yres, stdout); |
233 |
|
/* combine pictures */ |
234 |
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combine(); |
235 |
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quit(0); |
237 |
|
eputs("Usage: "); |
238 |
|
eputs(argv[0]); |
239 |
|
eputs( |
240 |
< |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
240 |
> |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] hdr ..]\n"); |
241 |
|
quit(1); |
242 |
+ |
return 1; /* pro forma return */ |
243 |
|
} |
244 |
|
|
245 |
|
|
246 |
< |
tputs(s) /* put out string preceded by a tab */ |
247 |
< |
char *s; |
246 |
> |
static int |
247 |
> |
headline( /* check header line & echo if requested */ |
248 |
> |
char *s, |
249 |
> |
void *p |
250 |
> |
) |
251 |
|
{ |
252 |
|
char fmt[32]; |
253 |
|
double d; |
254 |
|
COLOR ctmp; |
255 |
|
|
256 |
< |
if (isformat(s)) { /* check format */ |
257 |
< |
formatval(fmt, s); |
258 |
< |
wrongformat = strcmp(fmt, COLRFMT); |
259 |
< |
} else if (original && isexpos(s)) { /* exposure */ |
260 |
< |
d = 1.0/exposval(s); |
261 |
< |
scalecolor(input[nfiles].coef, d); |
262 |
< |
} else if (original && iscolcor(s)) { /* color correction */ |
256 |
> |
if (isheadid(s)) /* header id */ |
257 |
> |
return(0); /* don't echo */ |
258 |
> |
if (formatval(fmt, s)) { /* check format */ |
259 |
> |
if (globmatch(ourfmt, fmt)) { |
260 |
> |
wrongformat = 0; |
261 |
> |
strcpy(ourfmt, fmt); |
262 |
> |
} else |
263 |
> |
wrongformat = globmatch(PICFMT, fmt) ? 1 : -1; |
264 |
> |
return(0); /* don't echo */ |
265 |
> |
} |
266 |
> |
if (isexpos(s)) { /* exposure */ |
267 |
> |
d = exposval(s); |
268 |
> |
scalecolor(input[nfiles].expos, d); |
269 |
> |
} else if (iscolcor(s)) { /* color correction */ |
270 |
|
colcorval(ctmp, s); |
271 |
< |
colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
272 |
< |
colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
273 |
< |
colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
274 |
< |
} else { /* echo unaffected line */ |
271 |
> |
multcolor(input[nfiles].expos, ctmp); |
272 |
> |
} else if (isaspect(s)) |
273 |
> |
input[nfiles].pa *= aspectval(s); |
274 |
> |
else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
275 |
> |
gotview++; |
276 |
> |
|
277 |
> |
if (echoheader) { /* echo line */ |
278 |
|
putchar('\t'); |
279 |
< |
fputs(s, stdout); |
279 |
> |
return(fputs(s, stdout)); |
280 |
|
} |
281 |
< |
|
281 |
> |
return(0); |
282 |
|
} |
283 |
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|
284 |
|
|
285 |
< |
initfiles() /* ready files and set variables */ |
285 |
> |
static void |
286 |
> |
checkfile(void) /* ready a file */ |
287 |
|
{ |
288 |
< |
double l_colin(), l_coef(); |
289 |
< |
register int n, i; |
290 |
< |
/* process picture headers */ |
291 |
< |
for (n = 0; n < nfiles; n++) { |
292 |
< |
fputs(input[n].name, stdout); |
288 |
> |
int i; |
289 |
> |
/* process header */ |
290 |
> |
gotview = 0; |
291 |
> |
if (echoheader) { |
292 |
> |
fputs(input[nfiles].name, stdout); |
293 |
|
fputs(":\n", stdout); |
196 |
– |
getheader(input[n].fp, tputs, NULL); |
197 |
– |
if (wrongformat) { |
198 |
– |
eputs(input[n].name); |
199 |
– |
eputs(": not in Radiance picture format\n"); |
200 |
– |
quit(1); |
201 |
– |
} |
202 |
– |
if (fgetresolu(&xpos, &ypos, input[n].fp) != (YMAJOR|YDECR)) { |
203 |
– |
eputs(input[n].name); |
204 |
– |
eputs(": bad picture size\n"); |
205 |
– |
quit(1); |
206 |
– |
} |
207 |
– |
if (xres == 0 && yres == 0) { |
208 |
– |
xres = xpos; |
209 |
– |
yres = ypos; |
210 |
– |
} else if (xpos != xres || ypos != yres) { |
211 |
– |
eputs(input[n].name); |
212 |
– |
eputs(": resolution mismatch\n"); |
213 |
– |
quit(1); |
214 |
– |
} |
215 |
– |
for (i = 0; i < WINSIZ; i++) |
216 |
– |
input[n].scan[i] = (COLOR *)emalloc(xres*sizeof(COLOR)); |
294 |
|
} |
295 |
< |
/* prime input */ |
296 |
< |
for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
297 |
< |
advance(); |
295 |
> |
getheader(input[nfiles].fp, headline, NULL); |
296 |
> |
if (wrongformat < 0) { |
297 |
> |
eputs(input[nfiles].name); |
298 |
> |
eputs(": not a Radiance picture\n"); |
299 |
> |
quit(1); |
300 |
> |
} |
301 |
> |
if (wrongformat > 0) { |
302 |
> |
wputs(input[nfiles].name); |
303 |
> |
wputs(": warning -- incompatible picture format\n"); |
304 |
> |
} |
305 |
> |
if (!gotview || setview(&input[nfiles].vw) != NULL) |
306 |
> |
input[nfiles].vw.type = 0; |
307 |
> |
if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
308 |
> |
eputs(input[nfiles].name); |
309 |
> |
eputs(": bad picture size\n"); |
310 |
> |
quit(1); |
311 |
> |
} |
312 |
> |
if (xmax == 0 && ymax == 0) { |
313 |
> |
xmax = scanlen(&input[nfiles].rs); |
314 |
> |
ymax = numscans(&input[nfiles].rs); |
315 |
> |
} else if (scanlen(&input[nfiles].rs) != xmax || |
316 |
> |
numscans(&input[nfiles].rs) != ymax) { |
317 |
> |
eputs(input[nfiles].name); |
318 |
> |
eputs(": resolution mismatch\n"); |
319 |
> |
quit(1); |
320 |
> |
} |
321 |
> |
/* allocate scanlines */ |
322 |
> |
for (i = 0; i < WINSIZ; i++) |
323 |
> |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR)); |
324 |
> |
} |
325 |
> |
|
326 |
> |
|
327 |
> |
static double |
328 |
> |
rgb_bright( |
329 |
> |
COLOR clr |
330 |
> |
) |
331 |
> |
{ |
332 |
> |
return(bright(clr)); |
333 |
> |
} |
334 |
> |
|
335 |
> |
|
336 |
> |
static double |
337 |
> |
xyz_bright( |
338 |
> |
COLOR clr |
339 |
> |
) |
340 |
> |
{ |
341 |
> |
return(clr[CIEY]); |
342 |
> |
} |
343 |
> |
|
344 |
> |
|
345 |
> |
double (*ourbright)() = rgb_bright; |
346 |
> |
|
347 |
> |
|
348 |
> |
static void |
349 |
> |
init(void) /* perform final setup */ |
350 |
> |
{ |
351 |
> |
int i; |
352 |
|
/* define constants */ |
353 |
+ |
varset("PI", ':', PI); |
354 |
|
varset(vnfiles, ':', (double)nfiles); |
355 |
< |
varset(vxres, ':', (double)xres); |
356 |
< |
varset(vyres, ':', (double)yres); |
355 |
> |
varset(vxmax, ':', (double)xmax); |
356 |
> |
varset(vymax, ':', (double)ymax); |
357 |
|
/* set functions */ |
358 |
|
for (i = 0; i < 3; i++) { |
359 |
< |
funset(vcolcoef[i], 1, ':', l_coef); |
359 |
> |
funset(vcolexp[i], 1, ':', l_expos); |
360 |
|
funset(vcolin[i], 1, '=', l_colin); |
361 |
|
} |
362 |
< |
funset(vbrtcoef, 1, ':', l_coef); |
362 |
> |
funset(vbrtexp, 1, ':', l_expos); |
363 |
|
funset(vbrtin, 1, '=', l_colin); |
364 |
+ |
funset(vpixaspect, 1, ':', l_pixaspect); |
365 |
+ |
for (i = 0; i < 7; i++) |
366 |
+ |
funset(vray[i], 1, '=', l_ray); |
367 |
+ |
funset(vpsize, 1, '=', l_psize); |
368 |
+ |
/* set brightness function */ |
369 |
+ |
if (!strcmp(ourfmt, CIEFMT)) { |
370 |
+ |
varset(vwhteff, ':', 1.0); |
371 |
+ |
ourbright = xyz_bright; |
372 |
+ |
} else |
373 |
+ |
varset(vwhteff, ':', WHTEFFICACY); |
374 |
|
} |
375 |
|
|
376 |
|
|
377 |
< |
combine() /* combine pictures */ |
377 |
> |
static void |
378 |
> |
combine(void) /* combine pictures */ |
379 |
|
{ |
380 |
|
EPNODE *coldef[3], *brtdef; |
381 |
|
COLOR *scanout; |
382 |
|
double d; |
383 |
< |
register int i, j; |
383 |
> |
int i, j; |
384 |
|
/* check defined variables */ |
385 |
|
for (j = 0; j < 3; j++) { |
386 |
|
if (vardefined(vcolout[j])) |
394 |
|
brtdef = NULL; |
395 |
|
/* allocate scanline */ |
396 |
|
scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
397 |
+ |
/* set input position */ |
398 |
+ |
yscan = ymax+MIDSCN; |
399 |
|
/* combine files */ |
400 |
|
for (ypos = yres-1; ypos >= 0; ypos--) { |
401 |
|
advance(); |
402 |
|
varset(vypos, '=', (double)ypos); |
403 |
|
for (xpos = 0; xpos < xres; xpos++) { |
404 |
+ |
xscan = (xpos+.5)*xmax/xres; |
405 |
|
varset(vxpos, '=', (double)xpos); |
406 |
|
eclock++; |
407 |
|
if (brtdef != NULL) { |
416 |
|
} else { |
417 |
|
d = 0.0; |
418 |
|
for (i = 0; i < nfiles; i++) |
419 |
< |
d += colval(input[i].scan[MIDSCN][xpos],j); |
419 |
> |
d += colval(input[i].scan[MIDSCN][xscan],j); |
420 |
|
} |
421 |
|
if (d < 0.0) |
422 |
|
d = 0.0; |
429 |
|
quit(1); |
430 |
|
} |
431 |
|
} |
432 |
< |
efree(scanout); |
432 |
> |
efree((char *)scanout); |
433 |
|
} |
434 |
|
|
435 |
|
|
436 |
< |
advance() /* read in next scanline */ |
436 |
> |
static void |
437 |
> |
advance(void) /* read in data for next scanline */ |
438 |
|
{ |
439 |
< |
register COLOR *st; |
440 |
< |
register int i, j; |
439 |
> |
int ytarget; |
440 |
> |
COLOR *st; |
441 |
> |
int i, j; |
442 |
|
|
443 |
< |
for (i = 0; i < nfiles; i++) { |
444 |
< |
st = input[i].scan[WINSIZ-1]; |
445 |
< |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
446 |
< |
input[i].scan[j] = input[i].scan[j-1]; |
447 |
< |
input[i].scan[0] = st; |
448 |
< |
if (ypos < MIDSCN) /* hit bottom */ |
449 |
< |
continue; |
450 |
< |
if (freadscan(st, xres, input[i].fp) < 0) { |
451 |
< |
eputs(input[i].name); |
452 |
< |
eputs(": read error\n"); |
453 |
< |
quit(1); |
443 |
> |
for (ytarget = (ypos+.5)*ymax/yres; yscan > ytarget; yscan--) |
444 |
> |
for (i = 0; i < nfiles; i++) { |
445 |
> |
st = input[i].scan[WINSIZ-1]; |
446 |
> |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
447 |
> |
input[i].scan[j] = input[i].scan[j-1]; |
448 |
> |
input[i].scan[0] = st; |
449 |
> |
if (yscan <= MIDSCN) /* hit bottom? */ |
450 |
> |
continue; |
451 |
> |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
452 |
> |
eputs(input[i].name); |
453 |
> |
eputs(": read error\n"); |
454 |
> |
quit(1); |
455 |
> |
} |
456 |
> |
for (j = 0; j < xmax; j++) /* adjust color */ |
457 |
> |
multcolor(st[j], input[i].coef); |
458 |
|
} |
307 |
– |
for (j = 0; j < xres; j++) /* adjust color */ |
308 |
– |
multcolor(st[j], input[i].coef); |
309 |
– |
} |
459 |
|
} |
460 |
|
|
461 |
|
|
462 |
< |
double |
463 |
< |
l_coef(nam) /* return picture coefficients */ |
464 |
< |
register char *nam; |
462 |
> |
static double |
463 |
> |
l_expos( /* return picture exposure */ |
464 |
> |
char *nam |
465 |
> |
) |
466 |
|
{ |
467 |
< |
register int fn, n; |
467 |
> |
int fn, n; |
468 |
|
double d; |
469 |
|
|
470 |
< |
fn = (d = argument(1)) - .5; |
471 |
< |
if (d <= -.5 || fn >= nfiles) { |
470 |
> |
d = argument(1); |
471 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
472 |
|
errno = EDOM; |
473 |
|
return(0.0); |
474 |
|
} |
475 |
< |
if (d < .5) |
475 |
> |
if (d < 0.5) |
476 |
|
return((double)nfiles); |
477 |
< |
if (nam == vbrtcoef) |
478 |
< |
return(bright(input[fn].coef)); |
477 |
> |
fn = d - 0.5; |
478 |
> |
if (nam == vbrtexp) |
479 |
> |
return((*ourbright)(input[fn].expos)); |
480 |
|
n = 3; |
481 |
|
while (n--) |
482 |
< |
if (nam == vcolcoef[n]) |
483 |
< |
return(colval(input[fn].coef,n)); |
484 |
< |
eputs("Bad call to l_coef()!\n"); |
482 |
> |
if (nam == vcolexp[n]) |
483 |
> |
return(colval(input[fn].expos,n)); |
484 |
> |
eputs("Bad call to l_expos()!\n"); |
485 |
|
quit(1); |
486 |
+ |
return 1; /* pro forma return */ |
487 |
|
} |
488 |
|
|
489 |
|
|
490 |
< |
double |
491 |
< |
l_colin(nam) /* return color value for picture */ |
340 |
< |
register char *nam; |
490 |
> |
static double |
491 |
> |
l_pixaspect(char *nm) /* return pixel aspect ratio */ |
492 |
|
{ |
493 |
|
int fn; |
343 |
– |
register int n, xoff, yoff; |
494 |
|
double d; |
495 |
|
|
496 |
< |
fn = (d = argument(1)) - .5; |
497 |
< |
if (d <= -.5 || fn >= nfiles) { |
496 |
> |
d = argument(1); |
497 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
498 |
|
errno = EDOM; |
499 |
|
return(0.0); |
500 |
|
} |
501 |
< |
if (d < .5) |
501 |
> |
if (d < 0.5) |
502 |
|
return((double)nfiles); |
503 |
+ |
fn = d - 0.5; |
504 |
+ |
return(input[fn].pa); |
505 |
+ |
} |
506 |
+ |
|
507 |
+ |
|
508 |
+ |
static double |
509 |
+ |
l_colin( /* return color value for picture */ |
510 |
+ |
char *nam |
511 |
+ |
) |
512 |
+ |
{ |
513 |
+ |
int fn; |
514 |
+ |
int n, xoff, yoff; |
515 |
+ |
double d; |
516 |
+ |
|
517 |
+ |
d = argument(1); |
518 |
+ |
if (d <= -0.5 || d >= nfiles+0.5) { |
519 |
+ |
errno = EDOM; |
520 |
+ |
return(0.0); |
521 |
+ |
} |
522 |
+ |
if (d < 0.5) |
523 |
+ |
return((double)nfiles); |
524 |
+ |
fn = d - 0.5; |
525 |
|
xoff = yoff = 0; |
526 |
|
n = nargum(); |
527 |
|
if (n >= 2) { |
528 |
|
d = argument(2); |
529 |
|
if (d < 0.0) { |
530 |
|
xoff = d-.5; |
531 |
< |
if (xpos+xoff < 0) |
532 |
< |
xoff = -xpos; |
531 |
> |
if (xscan+xoff < 0) |
532 |
> |
xoff = -xscan; |
533 |
|
} else { |
534 |
|
xoff = d+.5; |
535 |
< |
if (xpos+xoff >= xres) |
536 |
< |
xoff = xres-1-xpos; |
535 |
> |
if (xscan+xoff >= xmax) |
536 |
> |
xoff = xmax-1-xscan; |
537 |
|
} |
538 |
|
} |
539 |
|
if (n >= 3) { |
542 |
|
yoff = d-.5; |
543 |
|
if (yoff+MIDSCN < 0) |
544 |
|
yoff = -MIDSCN; |
545 |
< |
if (ypos+yoff < 0) |
546 |
< |
yoff = -ypos; |
545 |
> |
if (yscan+yoff < 0) |
546 |
> |
yoff = -yscan; |
547 |
|
} else { |
548 |
|
yoff = d+.5; |
549 |
|
if (yoff+MIDSCN >= WINSIZ) |
550 |
|
yoff = WINSIZ-1-MIDSCN; |
551 |
< |
if (ypos+yoff >= yres) |
552 |
< |
yoff = yres-1-ypos; |
551 |
> |
if (yscan+yoff >= ymax) |
552 |
> |
yoff = ymax-1-yscan; |
553 |
|
} |
554 |
|
} |
555 |
|
if (nam == vbrtin) |
556 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
556 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
557 |
|
n = 3; |
558 |
|
while (n--) |
559 |
|
if (nam == vcolin[n]) |
560 |
< |
return(colval(input[fn].scan[MIDSCN+yoff][xpos+xoff],n)); |
560 |
> |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
561 |
|
eputs("Bad call to l_colin()!\n"); |
562 |
|
quit(1); |
563 |
+ |
return 1; /* pro forma return */ |
564 |
|
} |
565 |
|
|
566 |
|
|
567 |
< |
wputs(msg) |
568 |
< |
char *msg; |
567 |
> |
static double |
568 |
> |
l_ray( /* return ray origin or direction */ |
569 |
> |
char *nam |
570 |
> |
) |
571 |
|
{ |
572 |
+ |
static unsigned long ltick[MAXINP]; |
573 |
+ |
static FVECT lorg[MAXINP], ldir[MAXINP]; |
574 |
+ |
static double ldist[MAXINP]; |
575 |
+ |
RREAL loc[2]; |
576 |
+ |
double d; |
577 |
+ |
int fn; |
578 |
+ |
int i; |
579 |
+ |
|
580 |
+ |
d = argument(1); |
581 |
+ |
if (d <= -0.5 || d >= nfiles+0.5) { |
582 |
+ |
errno = EDOM; |
583 |
+ |
return(0.0); |
584 |
+ |
} |
585 |
+ |
if (d < 0.5) |
586 |
+ |
return((double)nfiles); |
587 |
+ |
fn = d - 0.5; |
588 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
589 |
+ |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
590 |
+ |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
591 |
+ |
ldist[fn] = -1.0; |
592 |
+ |
if (input[fn].vw.type == 0) |
593 |
+ |
errno = EDOM; |
594 |
+ |
else { |
595 |
+ |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
596 |
+ |
ldist[fn] = viewray(lorg[fn], ldir[fn], |
597 |
+ |
&input[fn].vw, loc[0], loc[1]); |
598 |
+ |
} |
599 |
+ |
ltick[fn] = eclock; |
600 |
+ |
} |
601 |
+ |
if (nam == vray[i=6]) |
602 |
+ |
return(ldist[fn]); |
603 |
+ |
while (i--) |
604 |
+ |
if (nam == vray[i]) |
605 |
+ |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
606 |
+ |
eputs("Bad call to l_ray()!\n"); |
607 |
+ |
quit(1); |
608 |
+ |
return 1; /* pro forma return */ |
609 |
+ |
} |
610 |
+ |
|
611 |
+ |
|
612 |
+ |
static double |
613 |
+ |
l_psize(char *nm) /* compute pixel size in steradians */ |
614 |
+ |
{ |
615 |
+ |
static unsigned long ltick[MAXINP]; |
616 |
+ |
static double psize[MAXINP]; |
617 |
+ |
FVECT dir0, org, dirx, diry; |
618 |
+ |
RREAL locx[2], locy[2]; |
619 |
+ |
double d; |
620 |
+ |
int fn; |
621 |
+ |
int i; |
622 |
+ |
|
623 |
+ |
d = argument(1); |
624 |
+ |
if (d <= -0.5 || d >= nfiles+0.5) { |
625 |
+ |
errno = EDOM; |
626 |
+ |
return(0.0); |
627 |
+ |
} |
628 |
+ |
if (d < 0.5) |
629 |
+ |
return((double)nfiles); |
630 |
+ |
fn = d - 0.5; |
631 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
632 |
+ |
psize[fn] = 0.0; |
633 |
+ |
if (input[fn].vw.type == 0) |
634 |
+ |
errno = EDOM; |
635 |
+ |
else if (input[fn].vw.type != VT_PAR && |
636 |
+ |
funvalue(vray[6], 1, &d) >= -FTINY) { |
637 |
+ |
for (i = 0; i < 3; i++) |
638 |
+ |
dir0[i] = funvalue(vray[3+i], 1, &d); |
639 |
+ |
pix2loc(locx, &input[fn].rs, xscan+1, ymax-1-yscan); |
640 |
+ |
pix2loc(locy, &input[fn].rs, xscan, ymax-yscan); |
641 |
+ |
if (viewray(org, dirx, &input[fn].vw, |
642 |
+ |
locx[0], locx[1]) >= -FTINY && |
643 |
+ |
viewray(org, diry, &input[fn].vw, |
644 |
+ |
locy[0], locy[1]) >= -FTINY) { |
645 |
+ |
/* approximate solid angle */ |
646 |
+ |
for (i = 0; i < 3; i++) { |
647 |
+ |
dirx[i] -= dir0[i]; |
648 |
+ |
diry[i] -= dir0[i]; |
649 |
+ |
} |
650 |
+ |
fcross(dir0, dirx, diry); |
651 |
+ |
psize[fn] = VLEN(dir0); |
652 |
+ |
} |
653 |
+ |
} |
654 |
+ |
ltick[fn] = eclock; |
655 |
+ |
} |
656 |
+ |
return(psize[fn]); |
657 |
+ |
} |
658 |
+ |
|
659 |
+ |
|
660 |
+ |
extern void |
661 |
+ |
wputs(char *msg) |
662 |
+ |
{ |
663 |
|
if (!nowarn) |
664 |
|
eputs(msg); |
665 |
|
} |
666 |
|
|
667 |
|
|
668 |
< |
eputs(msg) |
669 |
< |
char *msg; |
668 |
> |
extern void |
669 |
> |
eputs(char *msg) |
670 |
|
{ |
671 |
|
fputs(msg, stderr); |
672 |
|
} |
673 |
|
|
674 |
|
|
675 |
< |
quit(code) |
676 |
< |
int code; |
675 |
> |
extern void |
676 |
> |
quit(int code) /* exit gracefully */ |
677 |
|
{ |
678 |
+ |
int i; |
679 |
+ |
/* close input files */ |
680 |
+ |
for (i = 0; i < nfiles; i++) |
681 |
+ |
if (input[i].name == Command) |
682 |
+ |
pclose(input[i].fp); |
683 |
+ |
else |
684 |
+ |
fclose(input[i].fp); |
685 |
|
exit(code); |
686 |
|
} |