| 2 |
|
/* |
| 3 |
|
* color.h - header for routines using pixel color values. |
| 4 |
|
* |
| 5 |
– |
* Must be included after X11 headers, since they declare a BYTE type. |
| 6 |
– |
* |
| 5 |
|
* Two color representations are used, one for calculation and |
| 6 |
|
* another for storage. Calculation is done with three floats |
| 7 |
|
* for speed. Stored color values use 4 bytes which contain |
| 26 |
|
#define COLXS 128 /* excess used for exponent */ |
| 27 |
|
#define WHT 3 /* used for RGBPRIMS type */ |
| 28 |
|
|
| 29 |
< |
#undef BYTE |
| 30 |
< |
#define BYTE unsigned char /* 8-bit unsigned integer */ |
| 29 |
> |
#undef uby8 |
| 30 |
> |
#define uby8 unsigned char /* 8-bit unsigned integer */ |
| 31 |
|
|
| 32 |
< |
typedef BYTE COLR[4]; /* red, green, blue (or X,Y,Z), exponent */ |
| 32 |
> |
typedef uby8 COLR[4]; /* red, green, blue (or X,Y,Z), exponent */ |
| 33 |
|
|
| 34 |
< |
typedef float COLOR[3]; /* red, green, blue (or X,Y,Z) */ |
| 34 |
> |
typedef float COLORV; |
| 35 |
> |
typedef COLORV COLOR[3]; /* red, green, blue (or X,Y,Z) */ |
| 36 |
|
|
| 37 |
|
typedef float RGBPRIMS[4][2]; /* (x,y) chromaticities for RGBW */ |
| 38 |
|
typedef float (*RGBPRIMP)[2]; /* pointer to RGBPRIMS array */ |
| 156 |
|
#define PRIMARYSTR "PRIMARIES=" |
| 157 |
|
#define LPRIMARYSTR 10 |
| 158 |
|
#define isprims(hl) (!strncmp(hl,PRIMARYSTR,LPRIMARYSTR)) |
| 159 |
< |
#define primsval(p,hl) sscanf(hl+LPRIMARYSTR, \ |
| 159 |
> |
#define primsval(p,hl) sscanf((hl)+LPRIMARYSTR, \ |
| 160 |
|
"%f %f %f %f %f %f %f %f", \ |
| 161 |
|
&(p)[RED][CIEX],&(p)[RED][CIEY], \ |
| 162 |
|
&(p)[GRN][CIEX],&(p)[GRN][CIEY], \ |
| 174 |
|
#define COLCORSTR "COLORCORR=" |
| 175 |
|
#define LCOLCORSTR 10 |
| 176 |
|
#define iscolcor(hl) (!strncmp(hl,COLCORSTR,LCOLCORSTR)) |
| 177 |
< |
#define colcorval(cc,hl) sscanf(hl+LCOLCORSTR,"%f %f %f", \ |
| 177 |
> |
#define colcorval(cc,hl) sscanf((hl)+LCOLCORSTR,"%f %f %f", \ |
| 178 |
|
&(cc)[RED],&(cc)[GRN],&(cc)[BLU]) |
| 179 |
|
#define fputcolcor(cc,fp) fprintf(fp,"%s %f %f %f\n",COLCORSTR, \ |
| 180 |
|
(cc)[RED],(cc)[GRN],(cc)[BLU]) |
| 216 |
|
extern void colortrans(COLOR c2, COLORMAT mat, COLOR c1); |
| 217 |
|
extern void multcolormat(COLORMAT m3, COLORMAT m2, |
| 218 |
|
COLORMAT m1); |
| 219 |
< |
extern void compxyz2rgbmat(COLORMAT mat, RGBPRIMS pr); |
| 220 |
< |
extern void comprgb2xyzmat(COLORMAT mat, RGBPRIMS pr); |
| 221 |
< |
extern void comprgb2rgbmat(COLORMAT mat, RGBPRIMS pr1, RGBPRIMS pr2); |
| 222 |
< |
extern void compxyzWBmat(COLORMAT mat, float wht1[2], |
| 219 |
> |
extern int colorprimsOK(RGBPRIMS pr); |
| 220 |
> |
extern int compxyz2rgbmat(COLORMAT mat, RGBPRIMS pr); |
| 221 |
> |
extern int comprgb2xyzmat(COLORMAT mat, RGBPRIMS pr); |
| 222 |
> |
extern int comprgb2rgbmat(COLORMAT mat, RGBPRIMS pr1, RGBPRIMS pr2); |
| 223 |
> |
extern int compxyzWBmat(COLORMAT mat, float wht1[2], |
| 224 |
|
float wht2[2]); |
| 225 |
< |
extern void compxyz2rgbWBmat(COLORMAT mat, RGBPRIMS pr); |
| 226 |
< |
extern void comprgb2xyzWBmat(COLORMAT mat, RGBPRIMS pr); |
| 227 |
< |
extern void comprgb2rgbWBmat(COLORMAT mat, RGBPRIMS pr1, RGBPRIMS pr2); |
| 225 |
> |
extern int compxyz2rgbWBmat(COLORMAT mat, RGBPRIMS pr); |
| 226 |
> |
extern int comprgb2xyzWBmat(COLORMAT mat, RGBPRIMS pr); |
| 227 |
> |
extern int comprgb2rgbWBmat(COLORMAT mat, RGBPRIMS pr1, RGBPRIMS pr2); |
| 228 |
|
/* defined in colrops.c */ |
| 229 |
|
extern int setcolrcor(double (*f)(double, double), double a2); |
| 230 |
|
extern int setcolrinv(double (*f)(double, double), double a2); |
