# | Line 37 | Line 37 | extern "C" { | |
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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 | + | |
42 | #define LMESLOWER (5.62e-3) /* lower mesopic limit */ | |
43 | #define LMESUPPER (5.62) /* upper mesopic limit */ | |
44 | #if (TM_BRTSCALE==128) |
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