114 lines
3.2 KiB
C++
114 lines
3.2 KiB
C++
#pragma region License
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/*******************************************************************************
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Copyright (c) 2005-2009 David Williams
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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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
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*******************************************************************************/
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#pragma endregion
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#ifndef __PolyVox_SubArray_H__
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#define __PolyVox_SubArray_H__
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#pragma region Headers
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#include "PolyVoxImpl/CPlusPlusZeroXSupport.h"
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#pragma endregion
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namespace PolyVox
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{
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template <uint32_t noOfDims, typename ElementType> class Array;
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template <uint32_t noOfDims, typename ElementType>
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class SubArray
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{
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friend class Array<noOfDims+1, ElementType>;
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friend class SubArray<noOfDims+1, ElementType>;
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public:
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SubArray<noOfDims-1, ElementType> operator [](uint32_t uIndex)
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{
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assert(uIndex<m_pDimensions[0]);
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return
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SubArray<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
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m_pDimensions+1, m_pOffsets+1);
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}
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const SubArray<noOfDims-1, ElementType> operator [](uint32_t uIndex) const
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{
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assert(uIndex<m_pDimensions[0]);
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return
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SubArray<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
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m_pDimensions+1, m_pOffsets+1);
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}
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private:
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SubArray<noOfDims, ElementType>(ElementType * pElements, uint32_t * pDimensions, uint32_t * pOffsets)
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:m_pElements(pElements)
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,m_pDimensions(pDimensions)
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,m_pOffsets(pOffsets)
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,m_uNoOfElements(0)
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{
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}
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uint32_t * m_pDimensions;
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uint32_t * m_pOffsets;
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uint32_t m_uNoOfElements;
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ElementType * m_pElements;
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};
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template <typename ElementType>
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class SubArray<1, ElementType>
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{
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friend class Array<2, ElementType>;
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friend class SubArray<2, ElementType>;
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public:
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ElementType & operator [] (uint32_t uIndex)
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{
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assert(uIndex<m_pDimensions[0]);
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return m_pElements[uIndex];
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}
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const ElementType & operator [] (uint32_t uIndex) const
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{
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assert(uIndex<m_pDimensions[0]);
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return m_pElements[uIndex];
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}
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private:
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SubArray<1, ElementType>(ElementType * pElements, uint32_t * pDimensions, uint32_t * /*pOffsets*/)
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:m_pDimensions(pDimensions)
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,m_pElements(pElements)
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{
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}
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uint32_t * m_pDimensions;
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ElementType * m_pElements;
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};
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template <typename ElementType>
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class SubArray<0, ElementType>
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{
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//Zero dimensional subarray is meaningless.
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};
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}//namespace PolyVox
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#include "SubArray.inl"
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#endif //__PolyVox_SubArray_H__
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