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Viewing changes to extern/bullet2/src/BulletCollision/Gimpact/btQuantization.h

  • Committer: Bazaar Package Importer
  • Author(s): Khashayar Naderehvandi, Khashayar Naderehvandi, Alessio Treglia
  • Date: 2009-01-22 16:53:59 UTC
  • mfrom: (14.1.1 experimental)
  • Revision ID: james.westby@ubuntu.com-20090122165359-v0996tn7fbit64ni
Tags: 2.48a+dfsg-1ubuntu1
https://launchpad.net/bugs/320045
[ Khashayar Naderehvandi ]
* Merge from debian experimental (LP: #320045), Ubuntu remaining changes:
  - Add patch correcting header file locations.
  - Add libvorbis-dev and libgsm1-dev to Build-Depends.
  - Use avcodec_decode_audio2() in source/blender/src/hddaudio.c

[ Alessio Treglia ]
* Add missing previous changelog entries.

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extern/bullet2/src/BulletCollision/Gimpact/btQuantization.h
 
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#ifndef BT_QUANTIZATION_H_INCLUDED
 
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#define BT_QUANTIZATION_H_INCLUDED
 
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/*! \file btQuantization.h
 
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*\author Francisco Len N�jera
 
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*/
 
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/*
 
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This source file is part of GIMPACT Library.
 
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For the latest info, see http://gimpact.sourceforge.net/
 
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Copyright (c) 2007 Francisco Leon Najera. C.C. 80087371.
 
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email: projectileman@yahoo.com
 
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This software is provided 'as-is', without any express or implied warranty.
 
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In no event will the authors be held liable for any damages arising from the use of this software.
 
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Permission is granted to anyone to use this software for any purpose,
 
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including commercial applications, and to alter it and redistribute it freely,
 
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subject to the following restrictions:
 
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
 
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
 
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3. This notice may not be removed or altered from any source distribution.
 
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*/
 
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#include "LinearMath/btTransform.h"
 
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/*! \defgroup GEOMETRIC_OPERATIONS
 
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*/
 
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//! @{
 
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SIMD_FORCE_INLINE void bt_calc_quantization_parameters(
 
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        btVector3 & outMinBound,
 
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        btVector3 & outMaxBound,
 
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        btVector3 & bvhQuantization,
 
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        const btVector3& srcMinBound,const btVector3& srcMaxBound,
 
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        btScalar quantizationMargin)
 
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{
 
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        //enlarge the AABB to avoid division by zero when initializing the quantization values
 
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        btVector3 clampValue(quantizationMargin,quantizationMargin,quantizationMargin);
 
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        outMinBound = srcMinBound - clampValue;
 
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        outMaxBound = srcMaxBound + clampValue;
 
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        btVector3 aabbSize = outMaxBound - outMinBound;
 
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        bvhQuantization = btVector3(btScalar(65535.0),
 
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                                                                btScalar(65535.0),
 
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                                                                btScalar(65535.0)) / aabbSize;
 
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}
 
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SIMD_FORCE_INLINE void bt_quantize_clamp(
 
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        unsigned short* out,
 
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        const btVector3& point,
 
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        const btVector3 & min_bound,
 
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        const btVector3 & max_bound,
 
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        const btVector3 & bvhQuantization)
 
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{
 
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        btVector3 clampedPoint(point);
 
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        clampedPoint.setMax(min_bound);
 
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        clampedPoint.setMin(max_bound);
 
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        btVector3 v = (clampedPoint - min_bound) * bvhQuantization;
 
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        out[0] = (unsigned short)(v.getX()+0.5f);
 
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        out[1] = (unsigned short)(v.getY()+0.5f);
 
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        out[2] = (unsigned short)(v.getZ()+0.5f);
 
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}
 
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SIMD_FORCE_INLINE btVector3 bt_unquantize(
 
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        const unsigned short* vecIn,
 
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        const btVector3 & offset,
 
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        const btVector3 & bvhQuantization)
 
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{
 
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        btVector3       vecOut;
 
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        vecOut.setValue(
 
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                (btScalar)(vecIn[0]) / (bvhQuantization.getX()),
 
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                (btScalar)(vecIn[1]) / (bvhQuantization.getY()),
 
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                (btScalar)(vecIn[2]) / (bvhQuantization.getZ()));
 
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        vecOut += offset;
 
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        return vecOut;
 
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}
 
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//! @}
 
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#endif // GIM_VECTOR_H_INCLUDED