| 18 |
|
char *progname = "depth_codec"; |
| 19 |
|
|
| 20 |
|
|
| 21 |
+ |
#if 0 /* defined as macro in depthcodec.h */ |
| 22 |
|
/* Encode depth as 16-bit signed integer */ |
| 23 |
< |
short |
| 23 |
> |
int |
| 24 |
|
depth2code(double d, double dref) |
| 25 |
|
{ |
| 26 |
|
if (d <= .0) |
| 27 |
|
return -32768; |
| 28 |
|
|
| 29 |
|
if (d > dref) |
| 30 |
< |
return 32767 - 32768*dref/d; |
| 30 |
> |
return (int)(32768 - 32768*dref/d) - 1; |
| 31 |
|
|
| 32 |
< |
return 32767*d/dref - 32768; |
| 32 |
> |
return (int)(32767*d/dref - 32768); |
| 33 |
|
} |
| 34 |
+ |
#endif |
| 35 |
|
|
| 36 |
|
|
| 37 |
|
/* Decode depth from 16-bit signed integer */ |
| 38 |
|
double |
| 39 |
< |
code2depth(short c, double dref) |
| 39 |
> |
code2depth(int c, double dref) |
| 40 |
|
{ |
| 41 |
< |
if (c < 0) |
| 42 |
< |
return dref*(32768 + c)*(1./32767.); |
| 43 |
< |
|
| 44 |
< |
if (c == 32767) |
| 41 |
> |
if (c <= -32768) |
| 42 |
> |
return .0; |
| 43 |
> |
|
| 44 |
> |
if (c >= 32767) |
| 45 |
|
return FHUGE; |
| 46 |
+ |
|
| 47 |
+ |
if (c < 0) |
| 48 |
+ |
return dref*(32767.5 + c)*(1./32767.); |
| 49 |
|
|
| 50 |
< |
return dref*32768./(32767 - c); |
| 50 |
> |
return dref*32768./(32766.5 - c); |
| 51 |
|
} |
| 52 |
|
|
| 53 |
|
|
