638 lines
15 KiB
C++
638 lines
15 KiB
C++
/**
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* @file v4color.h
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* @brief LLColor4 class header file.
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*
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* $LicenseInfo:firstyear=2001&license=viewergpl$
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*
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* Copyright (c) 2001-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_V4COLOR_H
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#define LL_V4COLOR_H
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#include "llerror.h"
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//#include "vmath.h"
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#include "llmath.h"
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#include "llsd.h"
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class LLColor3;
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class LLColor4U;
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class LLVector4;
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// LLColor4 = |x y z w|
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static const U32 LENGTHOFCOLOR4 = 4;
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static const U32 MAX_LENGTH_OF_COLOR_NAME = 15; //Give plenty of room for additional colors...
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class LLColor4
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{
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public:
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F32 mV[LENGTHOFCOLOR4];
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LLColor4(); // Initializes LLColor4 to (0, 0, 0, 1)
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LLColor4(F32 r, F32 g, F32 b); // Initializes LLColor4 to (r, g, b, 1)
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LLColor4(F32 r, F32 g, F32 b, F32 a); // Initializes LLColor4 to (r. g, b, a)
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LLColor4(U32 clr); // Initializes LLColor4 to (r=clr>>24, etc))
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LLColor4(const F32 *vec); // Initializes LLColor4 to (vec[0]. vec[1], vec[2], 1)
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LLColor4(const LLColor3 &vec, F32 a = 1.f); // Initializes LLColor4 to (vec, a)
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/*explicit */LLColor4(const LLSD& sd);
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explicit LLColor4(const LLColor4U& color4u); // "explicit" to avoid automatic conversion
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explicit LLColor4(const LLVector4& vector4); // "explicit" to avoid automatic conversion
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LLSD getValue() const
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{
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LLSD ret;
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ret[0] = mV[0];
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ret[1] = mV[1];
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ret[2] = mV[2];
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ret[3] = mV[3];
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return ret;
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}
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void setValue(const LLSD& sd);
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void setHSL(F32 hue, F32 saturation, F32 luminance);
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void calcHSL(F32* hue, F32* saturation, F32* luminance) const;
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const LLColor4& setToBlack(); // zero LLColor4 to (0, 0, 0, 1)
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const LLColor4& setToWhite(); // zero LLColor4 to (0, 0, 0, 1)
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const LLColor4& setVec(F32 r, F32 g, F32 b, F32 a); // deprecated -- use set()
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const LLColor4& setVec(F32 r, F32 g, F32 b); // deprecated -- use set()
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const LLColor4& setVec(const LLColor4 &vec); // deprecated -- use set()
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const LLColor4& setVec(const LLColor3 &vec); // deprecated -- use set()
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const LLColor4& setVec(const LLColor3 &vec, F32 a); // deprecated -- use set()
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const LLColor4& setVec(const F32 *vec); // deprecated -- use set()
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const LLColor4& setVec(const LLColor4U& color4u); // deprecated -- use set()
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const LLColor4& set(F32 r, F32 g, F32 b, F32 a); // Sets LLColor4 to (r, g, b, a)
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const LLColor4& set(F32 r, F32 g, F32 b); // Sets LLColor4 to (r, g, b) (no change in a)
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const LLColor4& set(const LLColor4 &vec); // Sets LLColor4 to vec
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const LLColor4& set(const LLColor3 &vec); // Sets LLColor4 to LLColor3 vec (no change in alpha)
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const LLColor4& set(const LLColor3 &vec, F32 a); // Sets LLColor4 to LLColor3 vec, with alpha specified
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const LLColor4& set(const F32 *vec); // Sets LLColor4 to vec
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const LLColor4& set(const LLColor4U& color4u); // Sets LLColor4 to color4u, rescaled.
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const LLColor4& setAlpha(F32 a);
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F32 magVec() const; // deprecated -- use length()
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F32 magVecSquared() const; // deprecated -- use lengthSquared()
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F32 normVec(); // deprecated -- use normalize()
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F32 length() const; // Returns magnitude of LLColor4
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F32 lengthSquared() const; // Returns magnitude squared of LLColor4
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F32 normalize(); // deprecated -- use normalize()
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BOOL isOpaque() { return mV[VALPHA] == 1.f; }
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F32 operator[](int idx) const { return mV[idx]; }
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F32 &operator[](int idx) { return mV[idx]; }
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const LLColor4& operator=(const LLColor3 &a); // Assigns vec3 to vec4 and returns vec4
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friend std::ostream& operator<<(std::ostream& s, const LLColor4 &a); // Print a
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friend LLColor4 operator+(const LLColor4 &a, const LLColor4 &b); // Return vector a + b
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friend LLColor4 operator-(const LLColor4 &a, const LLColor4 &b); // Return vector a minus b
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friend LLColor4 operator*(const LLColor4 &a, const LLColor4 &b); // Return component wise a * b
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friend LLColor4 operator*(const LLColor4 &a, F32 k); // Return rgb times scaler k (no alpha change)
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friend LLColor4 operator*(F32 k, const LLColor4 &a); // Return rgb times scaler k (no alpha change)
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friend LLColor4 operator%(const LLColor4 &a, F32 k); // Return alpha times scaler k (no rgb change)
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friend LLColor4 operator%(F32 k, const LLColor4 &a); // Return alpha times scaler k (no rgb change)
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friend bool operator==(const LLColor4 &a, const LLColor4 &b); // Return a == b
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friend bool operator!=(const LLColor4 &a, const LLColor4 &b); // Return a != b
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friend bool operator==(const LLColor4 &a, const LLColor3 &b); // Return a == b
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friend bool operator!=(const LLColor4 &a, const LLColor3 &b); // Return a != b
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friend const LLColor4& operator+=(LLColor4 &a, const LLColor4 &b); // Return vector a + b
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friend const LLColor4& operator-=(LLColor4 &a, const LLColor4 &b); // Return vector a minus b
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friend const LLColor4& operator*=(LLColor4 &a, F32 k); // Return rgb times scaler k (no alpha change)
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friend const LLColor4& operator%=(LLColor4 &a, F32 k); // Return alpha times scaler k (no rgb change)
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friend const LLColor4& operator*=(LLColor4 &a, const LLColor4 &b); // Doesn't multiply alpha! (for lighting)
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// conversion
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operator const LLColor4U() const;
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// Basic color values.
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static LLColor4 red;
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static LLColor4 green;
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static LLColor4 blue;
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static LLColor4 black;
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static LLColor4 white;
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static LLColor4 yellow;
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static LLColor4 magenta;
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static LLColor4 cyan;
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static LLColor4 smoke;
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static LLColor4 grey;
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static LLColor4 orange;
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static LLColor4 purple;
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static LLColor4 pink;
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static LLColor4 transparent;
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// Extra color values.
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static LLColor4 grey1;
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static LLColor4 grey2;
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static LLColor4 grey3;
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static LLColor4 grey4;
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static LLColor4 red1;
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static LLColor4 red2;
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static LLColor4 red3;
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static LLColor4 red4;
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static LLColor4 red5;
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static LLColor4 green1;
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static LLColor4 green2;
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static LLColor4 green3;
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static LLColor4 green4;
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static LLColor4 green5;
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static LLColor4 green6;
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static LLColor4 blue1;
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static LLColor4 blue2;
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static LLColor4 blue3;
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static LLColor4 blue4;
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static LLColor4 blue5;
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static LLColor4 blue6;
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static LLColor4 yellow1;
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static LLColor4 yellow2;
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static LLColor4 yellow3;
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static LLColor4 yellow4;
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static LLColor4 yellow5;
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static LLColor4 yellow6;
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static LLColor4 yellow7;
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static LLColor4 yellow8;
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static LLColor4 yellow9;
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static LLColor4 orange1;
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static LLColor4 orange2;
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static LLColor4 orange3;
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static LLColor4 orange4;
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static LLColor4 orange5;
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static LLColor4 orange6;
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static LLColor4 magenta1;
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static LLColor4 magenta2;
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static LLColor4 magenta3;
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static LLColor4 magenta4;
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static LLColor4 purple1;
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static LLColor4 purple2;
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static LLColor4 purple3;
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static LLColor4 purple4;
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static LLColor4 purple5;
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static LLColor4 purple6;
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static LLColor4 pink1;
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static LLColor4 pink2;
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static LLColor4 cyan1;
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static LLColor4 cyan2;
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static LLColor4 cyan3;
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static LLColor4 cyan4;
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static LLColor4 cyan5;
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static LLColor4 cyan6;
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static BOOL parseColor(const std::string& buf, LLColor4* color);
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static BOOL parseColor4(const std::string& buf, LLColor4* color);
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inline void clamp();
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};
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// Non-member functions
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F32 distVec(const LLColor4 &a, const LLColor4 &b); // Returns distance between a and b
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F32 distVec_squared(const LLColor4 &a, const LLColor4 &b); // Returns distance squared between a and b
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LLColor3 vec4to3(const LLColor4 &vec);
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LLColor4 vec3to4(const LLColor3 &vec);
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LLColor4 lerp(const LLColor4 &a, const LLColor4 &b, F32 u);
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inline LLColor4::LLColor4(void)
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{
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mV[VX] = 0.f;
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mV[VY] = 0.f;
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mV[VZ] = 0.f;
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mV[VW] = 1.f;
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}
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inline LLColor4::LLColor4(const LLSD& sd)
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{
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this->setValue(sd);
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}
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inline LLColor4::LLColor4(F32 r, F32 g, F32 b)
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{
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mV[VX] = r;
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mV[VY] = g;
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mV[VZ] = b;
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mV[VW] = 1.f;
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}
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inline LLColor4::LLColor4(F32 r, F32 g, F32 b, F32 a)
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{
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mV[VX] = r;
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mV[VY] = g;
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mV[VZ] = b;
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mV[VW] = a;
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}
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inline LLColor4::LLColor4(U32 clr)
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{
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mV[VX] = (clr&0xff) * (1.0f/255.0f);
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mV[VY] = ((clr>>8)&0xff) * (1.0f/255.0f);
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mV[VZ] = ((clr>>16)&0xff) * (1.0f/255.0f);
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mV[VW] = (clr>>24) * (1.0f/255.0f);
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}
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inline LLColor4::LLColor4(const F32 *vec)
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{
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mV[VX] = vec[VX];
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mV[VY] = vec[VY];
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mV[VZ] = vec[VZ];
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mV[VW] = vec[VW];
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}
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inline const LLColor4& LLColor4::setToBlack(void)
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{
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mV[VX] = 0.f;
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mV[VY] = 0.f;
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mV[VZ] = 0.f;
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mV[VW] = 1.f;
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return (*this);
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}
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inline const LLColor4& LLColor4::setToWhite(void)
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{
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mV[VX] = 1.f;
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mV[VY] = 1.f;
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mV[VZ] = 1.f;
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mV[VW] = 1.f;
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return (*this);
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}
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inline const LLColor4& LLColor4::set(F32 x, F32 y, F32 z)
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{
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mV[VX] = x;
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mV[VY] = y;
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mV[VZ] = z;
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// no change to alpha!
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// mV[VW] = 1.f;
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return (*this);
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}
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inline const LLColor4& LLColor4::set(F32 x, F32 y, F32 z, F32 a)
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{
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mV[VX] = x;
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mV[VY] = y;
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mV[VZ] = z;
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mV[VW] = a;
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return (*this);
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}
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inline const LLColor4& LLColor4::set(const LLColor4 &vec)
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{
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mV[VX] = vec.mV[VX];
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mV[VY] = vec.mV[VY];
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mV[VZ] = vec.mV[VZ];
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mV[VW] = vec.mV[VW];
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return (*this);
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}
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inline const LLColor4& LLColor4::set(const F32 *vec)
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{
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mV[VX] = vec[VX];
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mV[VY] = vec[VY];
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mV[VZ] = vec[VZ];
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mV[VW] = vec[VW];
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return (*this);
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}
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// deprecated
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inline const LLColor4& LLColor4::setVec(F32 x, F32 y, F32 z)
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{
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mV[VX] = x;
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mV[VY] = y;
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mV[VZ] = z;
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// no change to alpha!
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// mV[VW] = 1.f;
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return (*this);
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}
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// deprecated
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inline const LLColor4& LLColor4::setVec(F32 x, F32 y, F32 z, F32 a)
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{
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mV[VX] = x;
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mV[VY] = y;
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mV[VZ] = z;
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mV[VW] = a;
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return (*this);
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}
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// deprecated
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inline const LLColor4& LLColor4::setVec(const LLColor4 &vec)
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{
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mV[VX] = vec.mV[VX];
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mV[VY] = vec.mV[VY];
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mV[VZ] = vec.mV[VZ];
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mV[VW] = vec.mV[VW];
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return (*this);
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}
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// deprecated
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inline const LLColor4& LLColor4::setVec(const F32 *vec)
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{
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mV[VX] = vec[VX];
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mV[VY] = vec[VY];
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mV[VZ] = vec[VZ];
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mV[VW] = vec[VW];
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return (*this);
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}
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inline const LLColor4& LLColor4::setAlpha(F32 a)
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{
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mV[VW] = a;
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return (*this);
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}
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// LLColor4 Magnitude and Normalization Functions
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inline F32 LLColor4::length(void) const
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{
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return fsqrtf(mV[VX]*mV[VX] + mV[VY]*mV[VY] + mV[VZ]*mV[VZ]);
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}
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inline F32 LLColor4::lengthSquared(void) const
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{
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return mV[VX]*mV[VX] + mV[VY]*mV[VY] + mV[VZ]*mV[VZ];
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}
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inline F32 LLColor4::normalize(void)
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{
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F32 mag = fsqrtf(mV[VX]*mV[VX] + mV[VY]*mV[VY] + mV[VZ]*mV[VZ]);
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F32 oomag;
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if (mag)
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{
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oomag = 1.f/mag;
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mV[VX] *= oomag;
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mV[VY] *= oomag;
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mV[VZ] *= oomag;
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}
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return (mag);
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}
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// deprecated
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inline F32 LLColor4::magVec(void) const
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{
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return fsqrtf(mV[VX]*mV[VX] + mV[VY]*mV[VY] + mV[VZ]*mV[VZ]);
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}
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// deprecated
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inline F32 LLColor4::magVecSquared(void) const
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{
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return mV[VX]*mV[VX] + mV[VY]*mV[VY] + mV[VZ]*mV[VZ];
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}
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// deprecated
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inline F32 LLColor4::normVec(void)
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{
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F32 mag = fsqrtf(mV[VX]*mV[VX] + mV[VY]*mV[VY] + mV[VZ]*mV[VZ]);
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F32 oomag;
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if (mag)
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{
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oomag = 1.f/mag;
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mV[VX] *= oomag;
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mV[VY] *= oomag;
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mV[VZ] *= oomag;
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}
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return (mag);
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}
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// LLColor4 Operators
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inline LLColor4 operator+(const LLColor4 &a, const LLColor4 &b)
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{
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return LLColor4(
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a.mV[VX] + b.mV[VX],
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a.mV[VY] + b.mV[VY],
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a.mV[VZ] + b.mV[VZ],
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a.mV[VW] + b.mV[VW]);
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}
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inline LLColor4 operator-(const LLColor4 &a, const LLColor4 &b)
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{
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return LLColor4(
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a.mV[VX] - b.mV[VX],
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a.mV[VY] - b.mV[VY],
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a.mV[VZ] - b.mV[VZ],
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a.mV[VW] - b.mV[VW]);
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}
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inline LLColor4 operator*(const LLColor4 &a, const LLColor4 &b)
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{
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return LLColor4(
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a.mV[VX] * b.mV[VX],
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a.mV[VY] * b.mV[VY],
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a.mV[VZ] * b.mV[VZ],
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a.mV[VW] * b.mV[VW]);
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}
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inline LLColor4 operator*(const LLColor4 &a, F32 k)
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{
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// only affects rgb (not a!)
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return LLColor4(
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a.mV[VX] * k,
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a.mV[VY] * k,
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a.mV[VZ] * k,
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a.mV[VW]);
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}
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inline LLColor4 operator*(F32 k, const LLColor4 &a)
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{
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// only affects rgb (not a!)
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return LLColor4(
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a.mV[VX] * k,
|
|
a.mV[VY] * k,
|
|
a.mV[VZ] * k,
|
|
a.mV[VW]);
|
|
}
|
|
|
|
inline LLColor4 operator%(F32 k, const LLColor4 &a)
|
|
{
|
|
// only affects alpha (not rgb!)
|
|
return LLColor4(
|
|
a.mV[VX],
|
|
a.mV[VY],
|
|
a.mV[VZ],
|
|
a.mV[VW] * k);
|
|
}
|
|
|
|
inline LLColor4 operator%(const LLColor4 &a, F32 k)
|
|
{
|
|
// only affects alpha (not rgb!)
|
|
return LLColor4(
|
|
a.mV[VX],
|
|
a.mV[VY],
|
|
a.mV[VZ],
|
|
a.mV[VW] * k);
|
|
}
|
|
|
|
inline bool operator==(const LLColor4 &a, const LLColor4 &b)
|
|
{
|
|
return ( (a.mV[VX] == b.mV[VX])
|
|
&&(a.mV[VY] == b.mV[VY])
|
|
&&(a.mV[VZ] == b.mV[VZ])
|
|
&&(a.mV[VW] == b.mV[VW]));
|
|
}
|
|
|
|
inline bool operator!=(const LLColor4 &a, const LLColor4 &b)
|
|
{
|
|
return ( (a.mV[VX] != b.mV[VX])
|
|
||(a.mV[VY] != b.mV[VY])
|
|
||(a.mV[VZ] != b.mV[VZ])
|
|
||(a.mV[VW] != b.mV[VW]));
|
|
}
|
|
|
|
inline const LLColor4& operator+=(LLColor4 &a, const LLColor4 &b)
|
|
{
|
|
a.mV[VX] += b.mV[VX];
|
|
a.mV[VY] += b.mV[VY];
|
|
a.mV[VZ] += b.mV[VZ];
|
|
a.mV[VW] += b.mV[VW];
|
|
return a;
|
|
}
|
|
|
|
inline const LLColor4& operator-=(LLColor4 &a, const LLColor4 &b)
|
|
{
|
|
a.mV[VX] -= b.mV[VX];
|
|
a.mV[VY] -= b.mV[VY];
|
|
a.mV[VZ] -= b.mV[VZ];
|
|
a.mV[VW] -= b.mV[VW];
|
|
return a;
|
|
}
|
|
|
|
inline const LLColor4& operator*=(LLColor4 &a, F32 k)
|
|
{
|
|
// only affects rgb (not a!)
|
|
a.mV[VX] *= k;
|
|
a.mV[VY] *= k;
|
|
a.mV[VZ] *= k;
|
|
return a;
|
|
}
|
|
|
|
inline const LLColor4& operator *=(LLColor4 &a, const LLColor4 &b)
|
|
{
|
|
a.mV[VX] *= b.mV[VX];
|
|
a.mV[VY] *= b.mV[VY];
|
|
a.mV[VZ] *= b.mV[VZ];
|
|
// a.mV[VW] *= b.mV[VW];
|
|
return a;
|
|
}
|
|
|
|
inline const LLColor4& operator%=(LLColor4 &a, F32 k)
|
|
{
|
|
// only affects alpha (not rgb!)
|
|
a.mV[VW] *= k;
|
|
return a;
|
|
}
|
|
|
|
|
|
// Non-member functions
|
|
|
|
inline F32 distVec(const LLColor4 &a, const LLColor4 &b)
|
|
{
|
|
LLColor4 vec = a - b;
|
|
return (vec.length());
|
|
}
|
|
|
|
inline F32 distVec_squared(const LLColor4 &a, const LLColor4 &b)
|
|
{
|
|
LLColor4 vec = a - b;
|
|
return (vec.lengthSquared());
|
|
}
|
|
|
|
inline LLColor4 lerp(const LLColor4 &a, const LLColor4 &b, F32 u)
|
|
{
|
|
return LLColor4(
|
|
a.mV[VX] + (b.mV[VX] - a.mV[VX]) * u,
|
|
a.mV[VY] + (b.mV[VY] - a.mV[VY]) * u,
|
|
a.mV[VZ] + (b.mV[VZ] - a.mV[VZ]) * u,
|
|
a.mV[VW] + (b.mV[VW] - a.mV[VW]) * u);
|
|
}
|
|
|
|
|
|
void LLColor4::clamp()
|
|
{
|
|
// Clamp the color...
|
|
if (mV[0] < 0.f)
|
|
{
|
|
mV[0] = 0.f;
|
|
}
|
|
else if (mV[0] > 1.f)
|
|
{
|
|
mV[0] = 1.f;
|
|
}
|
|
if (mV[1] < 0.f)
|
|
{
|
|
mV[1] = 0.f;
|
|
}
|
|
else if (mV[1] > 1.f)
|
|
{
|
|
mV[1] = 1.f;
|
|
}
|
|
if (mV[2] < 0.f)
|
|
{
|
|
mV[2] = 0.f;
|
|
}
|
|
else if (mV[2] > 1.f)
|
|
{
|
|
mV[2] = 1.f;
|
|
}
|
|
if (mV[3] < 0.f)
|
|
{
|
|
mV[3] = 0.f;
|
|
}
|
|
else if (mV[3] > 1.f)
|
|
{
|
|
mV[3] = 1.f;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|