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/*
* Copyright (c) 2008-2017, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#pragma once
#include "Simd4f.h"
#include <float.h>
namespace nvidia
{
namespace cloth
{
template <typename Simd4f>
struct BoundingBox
{
Simd4f mLower;
Simd4f mUpper;
};
template <typename Simd4f>
inline BoundingBox<Simd4f> loadBounds(const float* ptr)
{
BoundingBox<Simd4f> result;
result.mLower = load(ptr);
result.mUpper = load(ptr + 3);
return result;
}
template <typename Simd4f>
inline BoundingBox<Simd4f> emptyBounds()
{
BoundingBox<Simd4f> result;
result.mLower = simd4f(FLT_MAX);
result.mUpper = -result.mLower;
return result;
}
template <typename Simd4f>
inline BoundingBox<Simd4f> expandBounds(const BoundingBox<Simd4f>& bounds, const Simd4f* pIt, const Simd4f* pEnd)
{
BoundingBox<Simd4f> result = bounds;
for(; pIt != pEnd; ++pIt)
{
result.mLower = min(result.mLower, *pIt);
result.mUpper = max(result.mUpper, *pIt);
}
return result;
}
template <typename Simd4f>
inline BoundingBox<Simd4f> expandBounds(const BoundingBox<Simd4f>& a, const BoundingBox<Simd4f>& b)
{
BoundingBox<Simd4f> result;
result.mLower = min(a.mLower, b.mLower);
result.mUpper = max(a.mUpper, b.mUpper);
return result;
}
template <typename Simd4f>
inline BoundingBox<Simd4f> intersectBounds(const BoundingBox<Simd4f>& a, const BoundingBox<Simd4f>& b)
{
BoundingBox<Simd4f> result;
result.mLower = max(a.mLower, b.mLower);
result.mUpper = min(a.mUpper, b.mUpper);
return result;
}
template <typename Simd4f>
inline bool isEmptyBounds(const BoundingBox<Simd4f>& a)
{
return anyGreater(a.mLower, a.mUpper) != 0;
}
}
}
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