Moved some stuff from Array to SubArray.

This commit is contained in:
David Williams 2010-03-28 22:04:17 +00:00
parent 9485706e52
commit a9b8e5b0cf
4 changed files with 135 additions and 30 deletions

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@ -55,6 +55,8 @@ SET(IMPL_INC_FILES
include/PolyVoxImpl/Block.inl
include/PolyVoxImpl/CPlusPlusZeroXSupport.h
include/PolyVoxImpl/MarchingCubesTables.h
include/PolyVoxImpl/SubArray.h
include/PolyVoxImpl/SubArray.inl
include/PolyVoxImpl/TypeDef.h
include/PolyVoxImpl/Utility.h
)

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@ -29,7 +29,7 @@ freely, subject to the following restrictions:
#pragma region Headers
#include "ArraySizes.h" //Not strictly required, but convienient
#include "PolyVoxImpl/TypeDef.h"
#include "PolyVoxImpl/SubArray.h"
#include "PolyVoxImpl/CPlusPlusZeroXSupport.h"
#pragma endregion
@ -38,10 +38,8 @@ namespace PolyVox
template <uint32_t noOfDims, typename ElementType>
class Array
{
friend class Array<noOfDims+1, ElementType>;
public:
Array<noOfDims, ElementType>(const uint32_t (&Dimensions)[noOfDims])
Array<noOfDims, ElementType>(const uint32_t (&pDimensions)[noOfDims])
:m_pElements(0)
,m_pDimensions(0)
,m_pOffsets(0)
@ -54,33 +52,40 @@ namespace PolyVox
m_uNoOfElements = 1;
for (uint32_t i = 0; i<noOfDims; i++)
{
assert(Dimensions[i] != 0);
assert(pDimensions[i] != 0);
m_uNoOfElements *= Dimensions[i];
m_pDimensions[i] = Dimensions[i];
m_uNoOfElements *= pDimensions[i];
m_pDimensions[i] = pDimensions[i];
m_pOffsets[i] = 1;
for (int k=noOfDims-1; k>i; k--)
{
m_pOffsets[i] *= Dimensions[k];
m_pOffsets[i] *= pDimensions[k];
}
}
// Allocate new elements, let exception propagate
m_pElements = new ElementType[m_uNoOfElements];
}
Array<noOfDims-1, ElementType> operator [](uint32_t uIndex)
~Array<noOfDims, ElementType>()
{
delete[] m_pDimensions;
delete[] m_pOffsets;
delete[] m_pElements;
}
SubArray<noOfDims-1, ElementType> operator [](uint32_t uIndex)
{
assert(uIndex<m_pDimensions[0]);
return
Array<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
SubArray<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
m_pDimensions+1, m_pOffsets+1);
}
const Array<noOfDims-1, ElementType> operator [](uint32_t uIndex) const
const SubArray<noOfDims-1, ElementType> operator [](uint32_t uIndex) const
{
assert(uIndex<m_pDimensions[0]);
return
Array<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
SubArray<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
m_pDimensions+1, m_pOffsets+1);
}
@ -95,14 +100,6 @@ namespace PolyVox
}
private:
Array<noOfDims, ElementType>(ElementType * pElements, uint32_t * pDimensions, uint32_t * pOffsets)
:m_pElements(pElements)
,m_pDimensions(pDimensions)
,m_pOffsets(pOffsets)
,m_uNoOfElements(0)
{
}
uint32_t * m_pDimensions;
uint32_t * m_pOffsets;
uint32_t m_uNoOfElements;
@ -112,15 +109,13 @@ namespace PolyVox
template <typename ElementType>
class Array<1, ElementType>
{
friend class Array<2, ElementType>;
public:
Array<1, ElementType>(const uint32_t (&Dimensions)[1])
Array<1, ElementType>(const uint32_t (&pDimensions)[1])
: m_pElements(0)
,m_pDimensions(0)
{
m_pDimensions = new uint32_t[1];
m_pDimensions[0] = Dimensions[0];
m_pDimensions[0] = pDimensions[0];
// Allocate new elements, let exception propagate
m_pElements = new ElementType[m_pDimensions[0]];
@ -149,12 +144,6 @@ namespace PolyVox
}
private:
Array<1, ElementType>(ElementType * pElements, uint32_t * pDimensions, uint32_t * /*pOffsets*/)
:m_pDimensions(pDimensions)
,m_pElements(pElements)
{
}
uint32_t * m_pDimensions;
ElementType * m_pElements;
};

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@ -0,0 +1,114 @@
#pragma region License
/*******************************************************************************
Copyright (c) 2005-2009 David Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
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.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#pragma endregion
#ifndef __PolyVox_SubArray_H__
#define __PolyVox_SubArray_H__
#pragma region Headers
#include "PolyVoxImpl/CPlusPlusZeroXSupport.h"
#pragma endregion
namespace PolyVox
{
template <uint32_t noOfDims, typename ElementType> class Array;
template <uint32_t noOfDims, typename ElementType>
class SubArray
{
friend class Array<noOfDims+1, ElementType>;
friend class SubArray<noOfDims+1, ElementType>;
public:
SubArray<noOfDims-1, ElementType> operator [](uint32_t uIndex)
{
assert(uIndex<m_pDimensions[0]);
return
SubArray<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
m_pDimensions+1, m_pOffsets+1);
}
const SubArray<noOfDims-1, ElementType> operator [](uint32_t uIndex) const
{
assert(uIndex<m_pDimensions[0]);
return
SubArray<noOfDims-1, ElementType>(&m_pElements[uIndex*m_pOffsets[0]],
m_pDimensions+1, m_pOffsets+1);
}
private:
SubArray<noOfDims, ElementType>(ElementType * pElements, uint32_t * pDimensions, uint32_t * pOffsets)
:m_pElements(pElements)
,m_pDimensions(pDimensions)
,m_pOffsets(pOffsets)
,m_uNoOfElements(0)
{
}
uint32_t * m_pDimensions;
uint32_t * m_pOffsets;
uint32_t m_uNoOfElements;
ElementType * m_pElements;
};
template <typename ElementType>
class SubArray<1, ElementType>
{
friend class Array<2, ElementType>;
friend class SubArray<2, ElementType>;
public:
ElementType & operator [] (uint32_t uIndex)
{
assert(uIndex<m_pDimensions[0]);
return m_pElements[uIndex];
}
const ElementType & operator [] (uint32_t uIndex) const
{
assert(uIndex<m_pDimensions[0]);
return m_pElements[uIndex];
}
private:
SubArray<1, ElementType>(ElementType * pElements, uint32_t * pDimensions, uint32_t * /*pOffsets*/)
:m_pDimensions(pDimensions)
,m_pElements(pElements)
{
}
uint32_t * m_pDimensions;
ElementType * m_pElements;
};
template <typename ElementType>
class SubArray<0, ElementType>
{
//Zero dimensional subarray is meaningless.
};
}//namespace PolyVox
#include "SubArray.inl"
#endif //__PolyVox_SubArray_H__