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/* |
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* color.h - header for routines using pixel color values. |
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* |
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– |
* Must be included after X11 headers, since they declare a BYTE type. |
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* |
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* Two color representations are used, one for calculation and |
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* another for storage. Calculation is done with three floats |
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* for speed. Stored color values use 4 bytes which contain |
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#ifndef _RAD_COLOR_H_ |
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#define _RAD_COLOR_H_ |
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+ |
#include <stdio.h> |
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#include <stdlib.h> |
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#ifdef __cplusplus |
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#define COLXS 128 /* excess used for exponent */ |
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#define WHT 3 /* used for RGBPRIMS type */ |
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|
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< |
#undef BYTE |
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< |
#define BYTE unsigned char /* 8-bit unsigned integer */ |
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> |
#undef uby8 |
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> |
#define uby8 unsigned char /* 8-bit unsigned integer */ |
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|
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< |
typedef BYTE COLR[4]; /* red, green, blue (or X,Y,Z), exponent */ |
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> |
typedef uby8 COLR[4]; /* red, green, blue (or X,Y,Z), exponent */ |
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typedef float COLORV; |
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typedef COLORV COLOR[3]; /* red, green, blue (or X,Y,Z) */ |
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#define PRIMARYSTR "PRIMARIES=" |
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#define LPRIMARYSTR 10 |
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#define isprims(hl) (!strncmp(hl,PRIMARYSTR,LPRIMARYSTR)) |
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< |
#define primsval(p,hl) sscanf((hl)+LPRIMARYSTR, \ |
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> |
#define primsval(p,hl) (sscanf((hl)+LPRIMARYSTR, \ |
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"%f %f %f %f %f %f %f %f", \ |
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&(p)[RED][CIEX],&(p)[RED][CIEY], \ |
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&(p)[GRN][CIEX],&(p)[GRN][CIEY], \ |
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&(p)[BLU][CIEX],&(p)[BLU][CIEY], \ |
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< |
&(p)[WHT][CIEX],&(p)[WHT][CIEY]) |
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> |
&(p)[WHT][CIEX],&(p)[WHT][CIEY]) == 8) |
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#define fputprims(p,fp) fprintf(fp, \ |
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"%s %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f\n",\ |
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PRIMARYSTR, \ |
