1 |
< |
/* Copyright (c) 1986 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1991 Regents of the University of California */ |
2 |
|
|
3 |
|
/* SCCSid "$SunId$ LBL" */ |
4 |
|
|
40 |
|
|
41 |
|
#define multcolor(c1,c2) ((c1)[0]*=(c2)[0],(c1)[1]*=(c2)[1],(c1)[2]*=(c2)[2]) |
42 |
|
|
43 |
< |
#define bright(col) (.30*(col)[RED]+.59*(col)[GRN]+.11*(col)[BLU]) |
43 |
> |
#ifdef NTSC |
44 |
> |
#define CIE_x_r 0.670 /* standard NTSC primaries */ |
45 |
> |
#define CIE_y_r 0.330 |
46 |
> |
#define CIE_x_g 0.210 |
47 |
> |
#define CIE_y_g 0.710 |
48 |
> |
#define CIE_x_b 0.140 |
49 |
> |
#define CIE_y_b 0.080 |
50 |
> |
#define CIE_x_w 0.3333 /* use true white */ |
51 |
> |
#define CIE_y_w 0.3333 |
52 |
> |
#else |
53 |
> |
#define CIE_x_r 0.640 /* nominal CRT primaries */ |
54 |
> |
#define CIE_y_r 0.330 |
55 |
> |
#define CIE_x_g 0.290 |
56 |
> |
#define CIE_y_g 0.600 |
57 |
> |
#define CIE_x_b 0.150 |
58 |
> |
#define CIE_y_b 0.060 |
59 |
> |
#define CIE_x_w 0.3333 /* use true white */ |
60 |
> |
#define CIE_y_w 0.3333 |
61 |
> |
#endif |
62 |
|
|
63 |
+ |
#define CIE_D ( CIE_x_r*(CIE_y_g - CIE_y_b) + \ |
64 |
+ |
CIE_x_g*(CIE_y_b - CIE_y_r) + \ |
65 |
+ |
CIE_x_b*(CIE_y_r - CIE_y_g) ) |
66 |
+ |
#define CIE_C_rD ( (1./CIE_y_w) * \ |
67 |
+ |
( CIE_x_w*(CIE_y_g - CIE_y_b) - \ |
68 |
+ |
CIE_y_w*(CIE_x_g - CIE_x_b) + \ |
69 |
+ |
CIE_x_g*CIE_y_b - CIE_x_b*CIE_y_g ) ) |
70 |
+ |
#define CIE_C_gD ( (1./CIE_y_w) * \ |
71 |
+ |
( CIE_x_w*(CIE_y_b - CIE_y_r) - \ |
72 |
+ |
CIE_y_w*(CIE_x_b - CIE_x_r) - \ |
73 |
+ |
CIE_x_r*CIE_y_b + CIE_x_b*CIE_y_r ) ) |
74 |
+ |
#define CIE_C_bD ( (1./CIE_y_w) * \ |
75 |
+ |
( CIE_x_w*(CIE_y_r - CIE_y_g) - \ |
76 |
+ |
CIE_y_w*(CIE_x_r - CIE_x_g) + \ |
77 |
+ |
CIE_x_r*CIE_y_g - CIE_x_g*CIE_y_r ) ) |
78 |
+ |
|
79 |
+ |
#define CIE_rf (CIE_y_r*CIE_C_rD/CIE_D) |
80 |
+ |
#define CIE_gf (CIE_y_g*CIE_C_gD/CIE_D) |
81 |
+ |
#define CIE_bf (CIE_y_b*CIE_C_bD/CIE_D) |
82 |
+ |
|
83 |
+ |
/* As of 9-94, CIE_rf=.265074126, CIE_gf=.670114631 and CIE_bf=.064811243 */ |
84 |
+ |
|
85 |
+ |
#define bright(col) (CIE_rf*(col)[RED]+CIE_gf*(col)[GRN]+CIE_bf*(col)[BLU]) |
86 |
+ |
#define normbright(c) ( ( (long)(CIE_rf*256.+.5)*(c)[RED] + \ |
87 |
+ |
(long)(CIE_gf*256.+.5)*(c)[GRN] + \ |
88 |
+ |
(long)(CIE_bf*256.+.5)*(c)[BLU] ) >> 8 ) |
89 |
+ |
|
90 |
+ |
/* luminous efficacies over visible spectrum */ |
91 |
+ |
#define MAXEFFICACY 683. /* defined maximum at 550 nm */ |
92 |
+ |
#define WHTEFFICACY 179. /* uniform white light */ |
93 |
+ |
#define D65EFFICACY 203. /* standard illuminant D65 */ |
94 |
+ |
#define INCEFFICACY 160. /* illuminant A (incand.) */ |
95 |
+ |
#define SUNEFFICACY 208. /* illuminant B (solar dir.) */ |
96 |
+ |
#define SKYEFFICACY D65EFFICACY /* skylight */ |
97 |
+ |
#define DAYEFFICACY D65EFFICACY /* combined sky and solar */ |
98 |
+ |
|
99 |
+ |
#define luminance(col) (WHTEFFICACY * bright(col)) |
100 |
+ |
|
101 |
|
#define intens(col) ( (col)[0] > (col)[1] \ |
102 |
|
? (col)[0] > (col)[2] ? (col)[0] : (col)[2] \ |
103 |
|
: (col)[1] > (col)[2] ? (col)[1] : (col)[2] ) |
104 |
|
|
105 |
+ |
#define colrval(c,p) ( (c)[EXP] ? \ |
106 |
+ |
ldexp((c)[p]+.5,(int)(c)[EXP]-(COLXS+8)) : \ |
107 |
+ |
0. ) |
108 |
+ |
|
109 |
|
#define WHTCOLOR {1.0,1.0,1.0} |
110 |
|
#define BLKCOLOR {0.0,0.0,0.0} |
111 |
|
#define WHTCOLR {128,128,128,COLXS+1} |
112 |
|
#define BLKCOLR {0,0,0,0} |
113 |
+ |
|
114 |
+ |
/* picture format identifier */ |
115 |
+ |
#define COLRFMT "32-bit_rle_rgbe" |
116 |
+ |
|
117 |
+ |
/* macros for exposures */ |
118 |
+ |
#define EXPOSSTR "EXPOSURE=" |
119 |
+ |
#define LEXPOSSTR 9 |
120 |
+ |
#define isexpos(hl) (!strncmp(hl,EXPOSSTR,LEXPOSSTR)) |
121 |
+ |
#define exposval(hl) atof((hl)+LEXPOSSTR) |
122 |
+ |
#define fputexpos(ex,fp) fprintf(fp,"%s%e\n",EXPOSSTR,ex) |
123 |
+ |
|
124 |
+ |
/* macros for pixel aspect ratios */ |
125 |
+ |
#define ASPECTSTR "PIXASPECT=" |
126 |
+ |
#define LASPECTSTR 10 |
127 |
+ |
#define isaspect(hl) (!strncmp(hl,ASPECTSTR,LASPECTSTR)) |
128 |
+ |
#define aspectval(hl) atof((hl)+LASPECTSTR) |
129 |
+ |
#define fputaspect(pa,fp) fprintf(fp,"%s%f\n",ASPECTSTR,pa) |
130 |
+ |
|
131 |
+ |
/* macros for color correction */ |
132 |
+ |
#define COLCORSTR "COLORCORR=" |
133 |
+ |
#define LCOLCORSTR 10 |
134 |
+ |
#define iscolcor(hl) (!strncmp(hl,COLCORSTR,LCOLCORSTR)) |
135 |
+ |
#define colcorval(cc,hl) sscanf(hl+LCOLCORSTR,"%f %f %f", \ |
136 |
+ |
&(cc)[RED],&(cc)[GRN],&(cc)[BLU]) |
137 |
+ |
#define fputcolcor(cc,fp) fprintf(fp,"%s %f %f %f\n",COLCORSTR, \ |
138 |
+ |
(cc)[RED],(cc)[GRN],(cc)[BLU]) |
139 |
+ |
|
140 |
+ |
#ifdef DCL_ATOF |
141 |
+ |
extern double atof(), ldexp(), frexp(); |
142 |
+ |
#endif |