diff options
Diffstat (limited to 'indra/llmath/m4math.h')
| -rw-r--r-- | indra/llmath/m4math.h | 70 |
1 files changed, 45 insertions, 25 deletions
diff --git a/indra/llmath/m4math.h b/indra/llmath/m4math.h index e74b7afe9b..a7dce10397 100644 --- a/indra/llmath/m4math.h +++ b/indra/llmath/m4math.h @@ -2,31 +2,25 @@ * @file m4math.h * @brief LLMatrix4 class header file. * - * $LicenseInfo:firstyear=2000&license=viewergpl$ - * - * Copyright (c) 2000-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2000&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -125,6 +119,8 @@ public: ~LLMatrix4(void); // Destructor + LLSD getValue() const; + void setValue(const LLSD&); ////////////////////////////// // @@ -138,6 +134,7 @@ public: // various useful matrix functions const LLMatrix4& setIdentity(); // Load identity matrix + bool isIdentity() const; const LLMatrix4& setZero(); // Clears matrix to all zeros. const LLMatrix4& initRotation(const F32 angle, const F32 x, const F32 y, const F32 z); // Calculate rotation matrix by rotating angle radians about (x, y, z) @@ -159,6 +156,7 @@ public: const LLMatrix4& initRotTrans(const F32 roll, const F32 pitch, const F32 yaw, const LLVector4 &pos); // Rotation from Euler + translation const LLMatrix4& initRotTrans(const LLQuaternion &q, const LLVector4 &pos); // Set with Quaternion and position + const LLMatrix4& initScale(const LLVector3 &scale); // Set all const LLMatrix4& initAll(const LLVector3 &scale, const LLQuaternion &q, const LLVector3 &pos); @@ -225,10 +223,7 @@ public: // Operators // -// Not implemented to enforce code that agrees with symbolic syntax -// friend LLVector4 operator*(const LLMatrix4 &a, const LLVector4 &b); // Apply rotation a to vector b - -// friend inline LLMatrix4 operator*(const LLMatrix4 &a, const LLMatrix4 &b); // Return a * b + // friend inline LLMatrix4 operator*(const LLMatrix4 &a, const LLMatrix4 &b); // Return a * b friend LLVector4 operator*(const LLVector4 &a, const LLMatrix4 &b); // Return transform of vector a by matrix b friend const LLVector3 operator*(const LLVector3 &a, const LLMatrix4 &b); // Return full transform of a by matrix b friend LLVector4 rotate_vector(const LLVector4 &a, const LLMatrix4 &b); // Rotates a but does not translate @@ -236,6 +231,7 @@ public: friend bool operator==(const LLMatrix4 &a, const LLMatrix4 &b); // Return a == b friend bool operator!=(const LLMatrix4 &a, const LLMatrix4 &b); // Return a != b + friend bool operator<(const LLMatrix4 &a, const LLMatrix4& b); // Return a < b friend const LLMatrix4& operator+=(LLMatrix4 &a, const LLMatrix4 &b); // Return a + b friend const LLMatrix4& operator-=(LLMatrix4 &a, const LLMatrix4 &b); // Return a - b @@ -269,6 +265,30 @@ inline const LLMatrix4& LLMatrix4::setIdentity() return (*this); } +inline bool LLMatrix4::isIdentity() const +{ + return + mMatrix[0][0] == 1.f && + mMatrix[0][1] == 0.f && + mMatrix[0][2] == 0.f && + mMatrix[0][3] == 0.f && + + mMatrix[1][0] == 0.f && + mMatrix[1][1] == 1.f && + mMatrix[1][2] == 0.f && + mMatrix[1][3] == 0.f && + + mMatrix[2][0] == 0.f && + mMatrix[2][1] == 0.f && + mMatrix[2][2] == 1.f && + mMatrix[2][3] == 0.f && + + mMatrix[3][0] == 0.f && + mMatrix[3][1] == 0.f && + mMatrix[3][2] == 0.f && + mMatrix[3][3] == 1.f; +} + /* inline LLMatrix4 operator*(const LLMatrix4 &a, const LLMatrix4 &b) |