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- //
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- // modification, are permitted provided that the following conditions
- // are met:
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above copyright
- // notice, this list of conditions and the following disclaimer in the
- // documentation and/or other materials provided with the distribution.
- // * Neither the name of NVIDIA CORPORATION nor the names of its
- // contributors may be used to endorse or promote products derived
- // from this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
- // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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- // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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- // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- //
- // Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved.
- // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
- // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
-
- #ifndef GU_CENTER_EXTENTS_H
- #define GU_CENTER_EXTENTS_H
-
- /** \addtogroup geomutils
- @{
- */
-
- #include "CmMatrix34.h"
- #include "CmUtils.h"
- #include "PsUserAllocated.h"
-
- namespace physx
- {
- namespace Gu
- {
- class CenterExtents : public physx::shdfnd::UserAllocated
- {
- public:
- PX_FORCE_INLINE CenterExtents() {}
- PX_FORCE_INLINE CenterExtents(const PxBounds3& b) { mCenter = b.getCenter(); mExtents = b.getExtents(); }
- PX_FORCE_INLINE ~CenterExtents() {}
-
- PX_FORCE_INLINE void getMin(PxVec3& min) const { min = mCenter - mExtents; }
- PX_FORCE_INLINE void getMax(PxVec3& max) const { max = mCenter + mExtents; }
-
- PX_FORCE_INLINE float getMin(PxU32 axis) const { return mCenter[axis] - mExtents[axis]; }
- PX_FORCE_INLINE float getMax(PxU32 axis) const { return mCenter[axis] + mExtents[axis]; }
-
- PX_FORCE_INLINE PxVec3 getMin() const { return mCenter - mExtents; }
- PX_FORCE_INLINE PxVec3 getMax() const { return mCenter + mExtents; }
-
- PX_FORCE_INLINE void setMinMax(const PxVec3& min, const PxVec3& max)
- {
- mCenter = (max + min)*0.5f;
- mExtents = (max - min)*0.5f;
- }
-
- PX_FORCE_INLINE PxU32 isInside(const CenterExtents& box) const
- {
- if(box.getMin(0)>getMin(0)) return 0;
- if(box.getMin(1)>getMin(1)) return 0;
- if(box.getMin(2)>getMin(2)) return 0;
- if(box.getMax(0)<getMax(0)) return 0;
- if(box.getMax(1)<getMax(1)) return 0;
- if(box.getMax(2)<getMax(2)) return 0;
- return 1;
- }
-
- PX_FORCE_INLINE void setEmpty()
- {
- mExtents = PxVec3(-PX_MAX_BOUNDS_EXTENTS);
- }
-
- PX_FORCE_INLINE bool isEmpty() const
- {
- return Cm::isEmpty(mCenter, mExtents);
- }
-
- PX_FORCE_INLINE bool isFinite() const
- {
- return mCenter.isFinite() && mExtents.isFinite();
- }
-
- PX_FORCE_INLINE bool isValid() const
- {
- return Cm::isValid(mCenter, mExtents);
- }
-
- PX_FORCE_INLINE PxBounds3 transformFast(const PxMat33& matrix) const
- {
- PX_ASSERT(isValid());
- return PxBounds3::basisExtent(matrix * mCenter, matrix, mExtents);
- }
-
- PX_INLINE PxBounds3 transformSafe(const Cm::Matrix34& matrix) const
- {
- if(isEmpty())
- return PxBounds3::centerExtents(mCenter, mExtents);
- else
- return Cm::basisExtent(matrix.transform(mCenter), matrix.m.column0, matrix.m.column1, matrix.m.column2, mExtents);
- }
-
- PxVec3 mCenter;
- PxVec3 mExtents;
- };
-
- //! A padded version of CenterExtents, to safely load its data using SIMD
- class CenterExtentsPadded : public CenterExtents
- {
- public:
- PX_FORCE_INLINE CenterExtentsPadded() {}
- PX_FORCE_INLINE ~CenterExtentsPadded() {}
- PxU32 padding;
- };
- PX_COMPILE_TIME_ASSERT(sizeof(CenterExtentsPadded) == 7*4);
-
- }
-
- }
-
- /** @} */
- #endif