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149 lines
4.9 KiB
149 lines
4.9 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#include "HeadSpin.h" |
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#include "plFilterCoordInterface.h" |
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#include "hsMatrix44.h" |
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#include "hsStream.h" |
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static hsMatrix44* InvTRS(const hsMatrix44& trs, hsMatrix44& inv) |
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{ |
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inv.NotIdentity(); |
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float invSSq[3]; |
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invSSq[0] = 1.f / (trs.fMap[0][0] * trs.fMap[0][0] + trs.fMap[1][0] * trs.fMap[1][0] + trs.fMap[2][0] * trs.fMap[2][0]); |
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invSSq[1] = 1.f / (trs.fMap[0][1] * trs.fMap[0][1] + trs.fMap[1][1] * trs.fMap[1][1] + trs.fMap[2][1] * trs.fMap[2][1]); |
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invSSq[2] = 1.f / (trs.fMap[0][2] * trs.fMap[0][2] + trs.fMap[1][2] * trs.fMap[1][2] + trs.fMap[2][2] * trs.fMap[2][2]); |
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inv.fMap[0][0] = invSSq[0] * trs.fMap[0][0]; |
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inv.fMap[0][1] = invSSq[0] * trs.fMap[1][0]; |
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inv.fMap[0][2] = invSSq[0] * trs.fMap[2][0]; |
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inv.fMap[0][3] = -(inv.fMap[0][0] * trs.fMap[0][3] + inv.fMap[0][1] * trs.fMap[1][3] + inv.fMap[0][2] * trs.fMap[2][3]); |
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inv.fMap[1][0] = invSSq[1] * trs.fMap[0][1]; |
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inv.fMap[1][1] = invSSq[1] * trs.fMap[1][1]; |
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inv.fMap[1][2] = invSSq[1] * trs.fMap[2][1]; |
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inv.fMap[1][3] = -(inv.fMap[1][0] * trs.fMap[0][3] + inv.fMap[1][1] * trs.fMap[1][3] + inv.fMap[1][2] * trs.fMap[2][3]); |
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inv.fMap[2][0] = invSSq[2] * trs.fMap[0][2]; |
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inv.fMap[2][1] = invSSq[2] * trs.fMap[1][2]; |
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inv.fMap[2][2] = invSSq[2] * trs.fMap[2][2]; |
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inv.fMap[2][3] = -(inv.fMap[2][0] * trs.fMap[0][3] + inv.fMap[2][1] * trs.fMap[1][3] + inv.fMap[2][2] * trs.fMap[2][3]); |
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inv.fMap[3][0] = inv.fMap[3][1] = inv.fMap[3][2] = 0; |
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inv.fMap[3][3] = 1.f; |
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return &inv; |
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} |
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plFilterCoordInterface::plFilterCoordInterface() |
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: fFilterMask(kNoRotation) |
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{ |
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fRefParentLocalToWorld.Reset(); |
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} |
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plFilterCoordInterface::~plFilterCoordInterface() |
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{ |
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} |
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void plFilterCoordInterface::Read(hsStream* stream, hsResMgr* mgr) |
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{ |
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plCoordinateInterface::Read(stream, mgr); |
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fFilterMask = stream->ReadLE32(); |
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fRefParentLocalToWorld.Read(stream); |
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} |
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void plFilterCoordInterface::Write(hsStream* stream, hsResMgr* mgr) |
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{ |
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plCoordinateInterface::Write(stream, mgr); |
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stream->WriteLE32(fFilterMask); |
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fRefParentLocalToWorld.Write(stream); |
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} |
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void plFilterCoordInterface::IRecalcTransforms() |
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{ |
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if( !(fFilterMask && fParent) ) |
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{ |
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plCoordinateInterface::IRecalcTransforms(); |
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return; |
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} |
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hsMatrix44 origL2W = fRefParentLocalToWorld * fLocalToParent; |
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fLocalToWorld = fParent->GetLocalToWorld() * fLocalToParent; |
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// Filter out the stuff we're discarding. Nothing fancy here, |
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// we're taking the simple (and fast) form and just stuffing in |
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// what we want to preserve based on our reference matrix. |
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if( fFilterMask & kNoTransX ) |
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{ |
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fLocalToWorld.fMap[0][3] = origL2W.fMap[0][3]; |
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} |
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if( fFilterMask & kNoTransY ) |
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{ |
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fLocalToWorld.fMap[1][3] = origL2W.fMap[1][3]; |
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} |
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if( fFilterMask & kNoTransZ ) |
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{ |
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fLocalToWorld.fMap[2][3] = origL2W.fMap[2][3]; |
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} |
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if( fFilterMask & kNoRotation ) |
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{ |
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int i; |
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for( i = 0; i < 3; i++ ) |
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{ |
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int j; |
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for( j = 0; j < 3; j++ ) |
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{ |
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fLocalToWorld.fMap[i][j] = origL2W.fMap[i][j]; |
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} |
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} |
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} |
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// Construct the inverse of local to world for world to local. |
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InvTRS(fLocalToWorld, fWorldToLocal); |
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}
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