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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 1.iso
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Color.h
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C/C++ Source or Header
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1996-11-11
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5KB
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190 lines
/*
* (c) Copyright 1993, Silicon Graphics, Inc.
* ALL RIGHTS RESERVED
*
* Permission to use, copy, modify, and distribute this software for
* any purpose and without fee is hereby granted, provided that the above
* copyright notice appear in all copies and that both the copyright notice
* and this permission notice appear in supporting documentation, and that
* the name of Silicon Graphics, Inc. not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission.
*
* THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
* AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
* FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
* GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
* SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
* KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
* LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
* THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
* ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
* POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
*
* U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND
* Use, duplication, or disclosure by the Government is subject to
* restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
* (c)(1)(ii) of the Rights in Technical Data and Computer Software
* clause at DFARS 252.227-7013 and/or in similar or successor
* clauses in the FAR or the DOD or NASA FAR Supplement.
* Unpublished-- rights reserved under the copyright laws of the
* United States. Contractor/manufacturer is Silicon Graphics,
* Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
*
* OpenGL(TM) is a trademark of Silicon Graphics, Inc.
*/
#ifndef COLOR_H
#define COLOR_H
class Color {
public:
inline Color() {};
inline Color(GLfloat r, GLfloat g, GLfloat b, GLfloat a = 1.0);
inline Color& operator=(GLfloat *a);
inline Color& operator=(GLfloat a);
inline Color& operator+(Color a);
inline Color& operator+=(Color a);
inline Color& operator*(Color a);
inline Color& operator*(GLfloat a);
inline Color& operator*=(Color a);
inline Color& operator*=(GLfloat *a);
inline Color& operator*=(GLfloat a);
inline GLfloat& operator[](int index);
inline Color clamp();
inline void glcolor();
inline void print();
inline void print(const char *format);
GLfloat c[4];
};
const Color white(1., 1., 1., 1.), black(0., 0., 0., 1.);
const Color red(1, 0, 0), green(0, 1, 0), blue(0, 0, 1);
inline Color::Color(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
{
c[0] = r;
c[1] = g;
c[2] = b;
c[3] = a;
}
inline Color& Color::operator=(GLfloat a)
{
c[0] = c[1] = c[2] = c[3] = a;
return *this;
}
inline Color& Color::operator=(GLfloat *a)
{
c[0] = a[0];
c[1] = a[1];
c[2] = a[2];
c[3] = a[3];
return *this;
}
inline Color& Color::operator+(Color a)
{
Color val;
val.c[0] = c[0] + a.c[0];
val.c[1] = c[1] + a.c[1];
val.c[2] = c[2] + a.c[2];
val.c[3] = c[3] + a.c[3];
return val;
}
inline Color& Color::operator+=(Color a)
{
c[0] += a.c[0];
c[1] += a.c[1];
c[2] += a.c[2];
c[3] += a.c[3];
return *this;
}
inline Color& Color::operator*(Color a)
{
Color val;
val.c[0] = c[0] * a.c[0];
val.c[1] = c[1] * a.c[1];
val.c[2] = c[2] * a.c[2];
val.c[3] = c[3] * a.c[3];
return val;
}
inline Color& Color::operator*(GLfloat a)
{
Color val;
val.c[0] = c[0] * a;
val.c[1] = c[1] * a;
val.c[2] = c[2] * a;
val.c[3] = c[3] * a;
return val;
}
inline Color& Color::operator*=(Color a)
{
c[0] *= a.c[0];
c[1] *= a.c[1];
c[2] *= a.c[2];
return *this;
}
inline Color& Color::operator*=(GLfloat *a)
{
c[0] *= a[0];
c[1] *= a[1];
c[2] *= a[2];
return *this;
}
inline Color& Color::operator*=(GLfloat a)
{
c[0] *= a;
c[1] *= a;
c[2] *= a;
c[3] *= a;
return *this;
}
inline GLfloat& Color::operator[](int index)
{
return c[index];
}
inline Color Color::clamp()
{
Color val;
val.c[0] = c[0] < 0.0 ? 0.0 : (c[0] > 1.0 ? 1.0 : c[0]);
val.c[1] = c[1] < 0.0 ? 0.0 : (c[1] > 1.0 ? 1.0 : c[1]);
val.c[2] = c[2] < 0.0 ? 0.0 : (c[2] > 1.0 ? 1.0 : c[2]);
val.c[3] = c[3] < 0.0 ? 0.0 : (c[3] > 1.0 ? 1.0 : c[3]);
return val;
}
inline void Color::glcolor()
{
glColor4fv(c);
}
inline void Color::print()
{
print("%f %f %f %f\n");
}
inline void Color::print(const char *format)
{
printf(format, c[0], c[1], c[2], c[3]);
}
#endif