11 |
|
*/ |
12 |
|
|
13 |
|
#include <stdio.h> |
14 |
– |
#include <rasterfile.h> |
14 |
|
|
15 |
|
#include "random.h" |
16 |
|
#include "color.h" |
19 |
|
|
20 |
|
#define GAMMA 2.0 /* gamma correction factor */ |
21 |
|
|
22 |
+ |
FILE *popen(); |
23 |
+ |
|
24 |
+ |
char *pcom = NULL; /* pipe command */ |
25 |
+ |
|
26 |
|
BYTE gammamap[256]; /* gamma correction table */ |
27 |
|
|
28 |
|
|
38 |
|
for (progname = *argv++; --argc; argv++) |
39 |
|
if (!strcmp(*argv, "-p") && argv[1]) { |
40 |
|
port = atoi(*++argv); argc--; |
41 |
+ |
} else if (!strcmp(*argv, "-u") && argv[1]) { |
42 |
+ |
pcom = *++argv; argc--; |
43 |
|
} else |
44 |
|
break; |
45 |
|
if (!argc) { |
46 |
|
fputs("Usage: ", stderr); |
47 |
|
fputs(progname, stderr); |
48 |
< |
fputs(" [-p port] hostname [-c copies][-r record] [frame] ..\n", |
48 |
> |
fputs(" [-p port] [-u uncompress] hostname [-c copies][-r record] [frame] ..\n", |
49 |
|
stderr); |
50 |
|
exit(1); |
51 |
|
} |
76 |
|
sendframe(file) /* convert and send a frame */ |
77 |
|
char *file; |
78 |
|
{ |
79 |
+ |
char command[128]; |
80 |
|
COLR scanin[SCANLINE]; |
81 |
|
int xres, yres; |
82 |
|
int xbeg, ybeg; |
85 |
|
register int x; |
86 |
|
/* open file */ |
87 |
|
if (file == NULL) { |
88 |
< |
fp = stdin; |
88 |
> |
if (pcom != NULL) |
89 |
> |
fp = popen(pcom, "r"); |
90 |
> |
else |
91 |
> |
fp = stdin; |
92 |
|
file = "<stdin>"; |
93 |
< |
} else if ((fp = fopen(file, "r")) == NULL) { |
93 |
> |
} else { |
94 |
> |
if (pcom != NULL) { |
95 |
> |
sprintf(command, "( %s ) < %s", pcom, file); |
96 |
> |
fp = popen(command, "r"); |
97 |
> |
} else |
98 |
> |
fp = fopen(file, "r"); |
99 |
> |
} |
100 |
> |
if (fp == NULL) { |
101 |
|
perror(file); |
102 |
|
exit(1); |
103 |
|
} |
104 |
|
/* get dimensions */ |
105 |
|
getheader(fp, NULL); |
106 |
+ |
if (checkheader(fp, COLRFMT, NULL) < 0) { |
107 |
+ |
fputs(file, stderr); |
108 |
+ |
fputs(": not a Radiance picture\n", stderr); |
109 |
+ |
exit(1); |
110 |
+ |
} |
111 |
|
if (fgetresolu(&xres, &yres, fp) != (YMAJOR|YDECR) || |
112 |
|
xres > SCANLINE || yres > NUMSCANS) { |
113 |
|
fputs(file, stderr); |
136 |
|
/* send frame */ |
137 |
|
scry_send_frame(); |
138 |
|
/* close file */ |
139 |
< |
fclose(fp); |
139 |
> |
if (pcom != NULL) |
140 |
> |
pclose(fp); |
141 |
> |
else |
142 |
> |
fclose(fp); |
143 |
|
} |
144 |
|
|
145 |
|
|
149 |
|
register int i, val; |
150 |
|
|
151 |
|
for (i = 0; i < 256; i++) { |
152 |
< |
val = pow(i/256.0, 1.0/GAMMA) * 256.0; |
152 |
> |
val = pow((i+0.5)/256.0, 1.0/GAMMA) * 256.0; |
153 |
|
if (val > 248) val = 248; |
154 |
|
gammamap[i] = val; |
155 |
|
} |