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M_COLOR(3)	       FreeBSD Library Functions Manual		    M_COLOR(3)

NAME
     M_Color --	Agar-Math color	structure

SYNOPSIS
     #include <agar/math.h>

DESCRIPTION
     The M_Color structure describes a color in	terms of RGB values and	an al-
     pha component.  It	is defined as:

     #ifdef HAVE_SSE
     typedef union m_color {
	     __m128 m128;
	     struct { float r, g, b, a;	};
     } M_Color;
     #else
     typedef struct m_color {
	     M_Real r, g, b, a;
     } M_Color;
     #endif

     Notice that SIMD extensions force single-precision	floats,	regardless of
     the precision for which Agar-Math was built.

INITIALIZATION
     M_Color M_ColorRGB(M_Real r, M_Real g, M_Real b)

     M_Color M_ColorRGBA(M_Real	r, M_Real g, M_Real b, M_Real a)

     M_Color M_ColorHSV(M_Real hue, M_Real saturation, M_Real value)

     M_Color M_ColorHSVA(M_Real	hue, M_Real saturation,	M_Real value, M_Real
     a)

     M_Color M_ColorBlack(void)

     M_Color M_ColorWhite(void)

     M_Color M_ColorGray(M_Real	c)

     M_Color M_ReadColor(AG_DataSource *ds)

     void M_WriteColor(AG_DataSource *ds, const	M_Color	*C)

     void M_ColorTo4fv(const M_Color *C, float *fv)

     void M_ColorTo4dv(const M_Color *C, double	*fv)

     The M_ColorRGB() function returns an M_Color structure describing an
     opaque color composed of the given	red, green and blue components.	 The
     components	are real values	ranging	from 0.0 to 1.0.  M_ColorRGBA()	ac-
     cepts an alpha component as well.

     The M_ColorHSV() and M_ColorHSVA()	functions return a color specified in
     terms of hue, saturation and value, all real numbers ranging from 0.0 to
     1.0.

     M_ColorBlack() returns an opaque black and	M_ColorWhite() returns an
     opaque white.  M_ColorGray() returns a shade of gray where	c ranges from
     0 to 1.0.

     The M_ReadColor() and M_WriteColor() functions read or write a color
     structure from/to an AG_DataSource(3).

     M_ColorTo4fv() and	M_ColorTo4dv() convert a M_Color structure to an array
     of	4 float	or double, respectively.

SEE ALSO
     AG_DataSource(3), AG_Intro(3)

HISTORY
     The M_Color structure first appeared in Agar 1.3.4.

FreeBSD	13.0			 July 13, 2009			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | INITIALIZATION | SEE ALSO | HISTORY

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