| 9 |
|
*/ |
| 10 |
|
|
| 11 |
|
#include <stdio.h> |
| 12 |
+ |
#include <math.h> |
| 13 |
|
#ifdef MSDOS |
| 14 |
|
#include <fcntl.h> |
| 15 |
|
#endif |
| 18 |
|
|
| 19 |
|
extern char *malloc(); |
| 20 |
|
|
| 21 |
< |
double gamma = 2.2; /* gamma correction */ |
| 21 |
> |
double gamcor = 2.2; /* gamma correction */ |
| 22 |
|
|
| 23 |
|
int bradj = 0; /* brightness adjustment */ |
| 24 |
|
|
| 41 |
|
if (argv[i][0] == '-') |
| 42 |
|
switch (argv[i][1]) { |
| 43 |
|
case 'g': /* gamma correction */ |
| 44 |
< |
gamma = atof(argv[++i]); |
| 44 |
> |
gamcor = atof(argv[++i]); |
| 45 |
|
break; |
| 46 |
|
case 'e': /* exposure adjustment */ |
| 47 |
|
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
| 65 |
|
exit(1); |
| 66 |
|
} |
| 67 |
|
if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) { |
| 68 |
< |
fprintf(stderr, "can't open output \"%s\"\n", |
| 68 |
> |
fprintf(stderr, "%s: can't open output \"%s\"\n", |
| 69 |
|
progname, argv[i+1]); |
| 70 |
|
exit(1); |
| 71 |
|
} |
| 73 |
|
setmode(fileno(stdin), O_BINARY); |
| 74 |
|
setmode(fileno(stdout), O_BINARY); |
| 75 |
|
#endif |
| 76 |
< |
setcolrgam(gamma); /* set up gamma correction */ |
| 76 |
> |
setcolrgam(gamcor); /* set up gamma correction */ |
| 77 |
|
if (reverse) { |
| 78 |
|
/* get their image resolution */ |
| 79 |
|
xmax = getint(4, stdin); |
| 127 |
|
quiterr("out of memory in avs2ra"); |
| 128 |
|
/* convert image */ |
| 129 |
|
for (y = ymax-1; y >= 0; y--) { |
| 130 |
< |
(void)getc(stdin); /* toss alpha */ |
| 131 |
< |
scanout[x][RED] = getc(stdin); |
| 132 |
< |
scanout[x][GRN] = getc(stdin); |
| 133 |
< |
scanout[x][BLU] = getc(stdin); |
| 134 |
< |
if (feof(stdin) || ferror(stdin)) |
| 130 |
> |
for (x = 0; x < xmax; x++) { |
| 131 |
> |
(void)getc(stdin); /* toss alpha */ |
| 132 |
> |
scanout[x][RED] = getc(stdin); |
| 133 |
> |
scanout[x][GRN] = getc(stdin); |
| 134 |
> |
scanout[x][BLU] = getc(stdin); |
| 135 |
> |
} |
| 136 |
> |
if (feof(stdin) | ferror(stdin)) |
| 137 |
|
quiterr("error reading AVS image"); |
| 138 |
|
/* undo gamma */ |
| 139 |
|
gambs_colrs(scanout, xmax); |