37 |
|
#define MINBRT (-16*TM_BRTSCALE) /* minimum usable brightness */ |
38 |
|
#define MINLUM (1.125352e-7) /* tmLuminance(MINBRT) */ |
39 |
|
|
40 |
+ |
#define HISTI(li) (((li)-MINBRT)/HISTEP) |
41 |
+ |
#define HISTV(i) (MINBRT + HISTEP/2 + (i)*HISTEP) |
42 |
+ |
|
43 |
|
#define LMESLOWER (5.62e-3) /* lower mesopic limit */ |
44 |
|
#define LMESUPPER (5.62) /* upper mesopic limit */ |
42 |
– |
#if (TM_BRTSCALE==128) |
43 |
– |
#define BMESLOWER (-663) /* encoded LMESLOWER */ |
44 |
– |
#define BMESUPPER (221) /* encoded LMESUPPER */ |
45 |
– |
#else |
45 |
|
#define BMESLOWER ((int)(-5.18*TM_BRTSCALE-.5)) |
46 |
|
#define BMESUPPER ((int)(1.73*TM_BRTSCALE+.5)) |
48 |
– |
#endif |
47 |
|
/* approximate scotopic lum. */ |
48 |
|
#define SCO_rf 0.062 |
49 |
|
#define SCO_gf 0.608 |
53 |
|
(int32)(SCO_gf*256.+.5)*(c)[GRN] + \ |
54 |
|
(int32)(SCO_bf*256.+.5)*(c)[BLU] ) >> 8 ) |
55 |
|
|
56 |
< |
#ifndef malloc |
57 |
< |
MEM_PTR malloc(); |
60 |
< |
MEM_PTR calloc(); |
61 |
< |
#endif |
56 |
> |
extern int tmNewMap(TMstruct *tms); /* allocate new tone-mapping */ |
57 |
> |
|
58 |
|
extern int tmErrorReturn(const char *, TMstruct *, int); |
59 |
|
|
60 |
|
/* lookup for mesopic scaling */ |