| 48 |
|
#define normbright(c) (int)((67L*(c)[RED]+168L*(c)[GRN]+21L*(c)[BLU])/256) |
| 49 |
|
#endif |
| 50 |
|
|
| 51 |
+ |
/* luminous efficacies over visible spectrum */ |
| 52 |
+ |
#define MAXEFFICACY 683. /* defined maximum at 550 nm */ |
| 53 |
+ |
#define WHTEFFICACY 179. /* uniform white light */ |
| 54 |
+ |
#define D65EFFICACY 203. /* standard illuminant D65 */ |
| 55 |
+ |
#define INCEFFICACY 160. /* illuminant A (incand.) */ |
| 56 |
+ |
#define SUNEFFICACY 208. /* illuminant B (solar dir.) */ |
| 57 |
+ |
#define SKYEFFICACY D65EFFICACY /* skylight */ |
| 58 |
+ |
#define DAYEFFICACY D65EFFICACY /* combined sky and solar */ |
| 59 |
+ |
|
| 60 |
+ |
#define luminance(col) (WHTEFFICACY * bright(col)) |
| 61 |
+ |
|
| 62 |
|
#define intens(col) ( (col)[0] > (col)[1] \ |
| 63 |
|
? (col)[0] > (col)[2] ? (col)[0] : (col)[2] \ |
| 64 |
|
: (col)[1] > (col)[2] ? (col)[1] : (col)[2] ) |
| 77 |
|
#define YDECR 2 |
| 78 |
|
#define YMAJOR 4 |
| 79 |
|
|
| 80 |
+ |
/* picture format identifier */ |
| 81 |
+ |
#define COLRFMT "32-bit_rle_rgbe" |
| 82 |
+ |
|
| 83 |
|
/* macros for exposures */ |
| 84 |
|
#define EXPOSSTR "EXPOSURE=" |
| 85 |
< |
#define EXPOSSTRL 9 |
| 86 |
< |
#define isexpos(hl) (!strncmp(hl,EXPOSSTR,EXPOSSTRL)) |
| 87 |
< |
#define exposval(hl) atof((hl)+EXPOSSTRL) |
| 85 |
> |
#define LEXPOSSTR 9 |
| 86 |
> |
#define isexpos(hl) (!strncmp(hl,EXPOSSTR,LEXPOSSTR)) |
| 87 |
> |
#define exposval(hl) atof((hl)+LEXPOSSTR) |
| 88 |
|
#define fputexpos(ex,fp) fprintf(fp,"%s%e\n",EXPOSSTR,ex) |
| 89 |
|
|
| 90 |
|
/* macros for pixel aspect ratios */ |
| 91 |
|
#define ASPECTSTR "PIXASPECT=" |
| 92 |
< |
#define ASPECTSTRL 10 |
| 93 |
< |
#define isaspect(hl) (!strncmp(hl,ASPECTSTR,ASPECTSTRL)) |
| 94 |
< |
#define aspectval(hl) atof((hl)+ASPECTSTRL) |
| 92 |
> |
#define LASPECTSTR 10 |
| 93 |
> |
#define isaspect(hl) (!strncmp(hl,ASPECTSTR,LASPECTSTR)) |
| 94 |
> |
#define aspectval(hl) atof((hl)+LASPECTSTR) |
| 95 |
|
#define fputaspect(pa,fp) fprintf(fp,"%s%f\n",ASPECTSTR,pa) |
| 96 |
+ |
|
| 97 |
+ |
/* macros for color correction */ |
| 98 |
+ |
#define COLCORSTR "COLORCORR=" |
| 99 |
+ |
#define LCOLCORSTR 10 |
| 100 |
+ |
#define iscolcor(hl) (!strncmp(hl,COLCORSTR,LCOLCORSTR)) |
| 101 |
+ |
#define colcorval(cc,hl) sscanf(hl+LCOLCORSTR,"%f %f %f", \ |
| 102 |
+ |
&(cc)[RED],&(cc)[GRN],&(cc)[BLU]) |
| 103 |
+ |
#define fputcolcor(cc,fp) fprintf(fp,"%s %f %f %f\n",COLCORSTR, \ |
| 104 |
+ |
(cc)[RED],(cc)[GRN],(cc)[BLU]) |
| 105 |
|
|
| 106 |
|
extern double ldexp(), atof(); |
