cms_rainbow.h

操作系统SunOS 4.1.3版本的源码

/*	@(#)cms_rainbow.h 1.1 92/07/30 SMI	*/

/*
 * Copyright (c) 1983 by Sun Microsystems, Inc.
 */

/*
 * Definition of the colormap segment CMS_RAINBOW,
 * a small collection of colors of the rainbow.
 */

#define	CMS_RAINBOW		"rainbow"
#define	CMS_RAINBOWSIZE	8

#define	WHITE	0
#define	RED	1
#define	ORANGE	2
#define	YELLOW	3
#define	GREEN	4
#define	BLUE	5
#define	INDIGO	6
#define	VIOLET	7

#define	cms_rainbowsetup(r,g,b) \
	(r)[WHITE] = 255;	(g)[WHITE] = 255;	(b)[WHITE] = 255; \
	(r)[RED] = 255;		(g)[RED] = 0;		(b)[RED] = 0; \
	(r)[ORANGE] = 192;	(g)[ORANGE] = 64;	(b)[ORANGE] = 0; \
	(r)[YELLOW] = 128;	(g)[YELLOW] = 128;	(b)[YELLOW] = 0; \
	(r)[GREEN] = 0;		(g)[GREEN] = 255;	(b)[GREEN] = 0; \
	(r)[BLUE] = 0;		(g)[BLUE] = 0;		(b)[BLUE] = 255; \
	/* \
	 * The rule for indigo is B > R & SQRT(B**2+R**2) < .5 \
	 * where 0.0<=B|R<=1.0).  Trying R=.25 and B=.3. \
	 */ \
	(r)[INDIGO] = 64;	(g)[INDIGO] = 0;	(b)[INDIGO] = 76; \
	/* \
	 * The rule for violet is R > B & SQRT(B**2+R**2) > .5 \
	 * where 0.0<=B|R<=1.0).  Trying R=.5 and B=.7. \
	 */ \
	(r)[VIOLET] = 128;	(g)[VIOLET] = 0;	(b)[VIOLET] = 178;