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vtkScaledSOADataArrayTemplate.txx
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vtkScaledSOADataArrayTemplate.txx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkScaledSOADataArrayTemplate.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#ifndef vtkScaledSOADataArrayTemplate_txx
#define vtkScaledSOADataArrayTemplate_txx
#ifdef VTK_SCALED_SOA_DATA_ARRAY_TEMPLATE_INSTANTIATING
#define VTK_GDA_VALUERANGE_INSTANTIATING
#include "vtkDataArrayPrivate.txx"
#undef VTK_GDA_VALUERANGE_INSTANTIATING
#endif
#include "vtkScaledSOADataArrayTemplate.h"
#include "vtkArrayIteratorTemplate.h"
#include "vtkBuffer.h"
#include <cassert>
//-----------------------------------------------------------------------------
template <class ValueType>
vtkScaledSOADataArrayTemplate<ValueType>* vtkScaledSOADataArrayTemplate<ValueType>::New()
{
VTK_STANDARD_NEW_BODY(vtkScaledSOADataArrayTemplate<ValueType>);
}
//-----------------------------------------------------------------------------
template <class ValueType>
vtkScaledSOADataArrayTemplate<ValueType>::vtkScaledSOADataArrayTemplate()
: AoSCopy(nullptr)
, Scale(1)
{
}
//-----------------------------------------------------------------------------
template <class ValueType>
vtkScaledSOADataArrayTemplate<ValueType>::~vtkScaledSOADataArrayTemplate()
{
for (size_t cc = 0; cc < this->Data.size(); ++cc)
{
this->Data[cc]->Delete();
}
this->Data.clear();
if (this->AoSCopy)
{
this->AoSCopy->Delete();
this->AoSCopy = nullptr;
}
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::SetNumberOfComponents(int val)
{
this->GenericDataArrayType::SetNumberOfComponents(val);
size_t numComps = static_cast<size_t>(this->GetNumberOfComponents());
assert(numComps >= 1);
while (this->Data.size() > numComps)
{
this->Data.back()->Delete();
this->Data.pop_back();
}
while (this->Data.size() < numComps)
{
this->Data.push_back(vtkBuffer<ValueType>::New());
}
}
//-----------------------------------------------------------------------------
template <class ValueType>
vtkArrayIterator* vtkScaledSOADataArrayTemplate<ValueType>::NewIterator()
{
vtkArrayIterator* iter = vtkArrayIteratorTemplate<ValueType>::New();
iter->Initialize(this);
return iter;
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::ShallowCopy(vtkDataArray* other)
{
SelfType* o = SelfType::FastDownCast(other);
if (o)
{
this->Size = o->Size;
this->MaxId = o->MaxId;
this->SetName(o->Name);
this->SetNumberOfComponents(o->NumberOfComponents);
this->CopyComponentNames(o);
this->Scale = o->Scale;
assert(this->Data.size() == o->Data.size());
for (size_t cc = 0; cc < this->Data.size(); ++cc)
{
vtkBuffer<ValueType>* thisBuffer = this->Data[cc];
vtkBuffer<ValueType>* otherBuffer = o->Data[cc];
if (thisBuffer != otherBuffer)
{
thisBuffer->Delete();
this->Data[cc] = otherBuffer;
otherBuffer->Register(nullptr);
}
}
this->DataChanged();
}
else
{
this->Superclass::ShallowCopy(other);
}
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::InsertTuples(
vtkIdType dstStart, vtkIdType n, vtkIdType srcStart, vtkAbstractArray* source)
{
// First, check for the common case of typeid(source) == typeid(this). This
// way we don't waste time redoing the other checks in the superclass, and
// can avoid doing a dispatch for the most common usage of this method.
SelfType* other = vtkArrayDownCast<SelfType>(source);
if (!other)
{
// Let the superclass handle dispatch/fallback.
this->Superclass::InsertTuples(dstStart, n, srcStart, source);
return;
}
if (n == 0)
{
return;
}
int numComps = this->GetNumberOfComponents();
if (other->GetNumberOfComponents() != numComps)
{
vtkErrorMacro("Number of components do not match: Source: "
<< other->GetNumberOfComponents() << " Dest: " << this->GetNumberOfComponents());
return;
}
vtkIdType maxSrcTupleId = srcStart + n - 1;
vtkIdType maxDstTupleId = dstStart + n - 1;
if (maxSrcTupleId >= other->GetNumberOfTuples())
{
vtkErrorMacro("Source array too small, requested tuple at index "
<< maxSrcTupleId << ", but there are only " << other->GetNumberOfTuples()
<< " tuples in the array.");
return;
}
vtkIdType newSize = (maxDstTupleId + 1) * this->NumberOfComponents;
if (this->Size < newSize)
{
if (!this->Resize(maxDstTupleId + 1))
{
vtkErrorMacro("Resize failed.");
return;
}
}
this->MaxId = std::max(this->MaxId, newSize - 1);
std::vector<ValueType> vals(numComps);
for (vtkIdType i = 0; i < n; i++)
{
other->GetTypedTuple(i + srcStart, vals.data());
this->SetTypedTuple(i + dstStart, vals.data()); // will automatically scale data
}
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::FillTypedComponent(int compIdx, ValueType value)
{
ValueType* buffer = this->Data[compIdx]->GetBuffer();
value /= this->Scale;
std::fill(buffer, buffer + this->GetNumberOfTuples(), value);
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::SetArray(
int comp, ValueType* array, vtkIdType size, bool updateMaxId, bool save, int deleteMethod)
{
const int numComps = this->GetNumberOfComponents();
if (comp >= numComps || comp < 0)
{
vtkErrorMacro("Invalid component number '"
<< comp
<< "' specified. "
"Use `SetNumberOfComponents` first to set the number of components.");
return;
}
this->Data[comp]->SetBuffer(array, size);
if (deleteMethod == VTK_DATA_ARRAY_DELETE)
{
this->Data[comp]->SetFreeFunction(save != 0, ::operator delete[]);
}
else if (deleteMethod == VTK_DATA_ARRAY_ALIGNED_FREE)
{
#ifdef _WIN32
this->Data[comp]->SetFreeFunction(save != 0, _aligned_free);
#else
this->Data[comp]->SetFreeFunction(save != 0, free);
#endif
}
else if (deleteMethod == VTK_DATA_ARRAY_USER_DEFINED || deleteMethod == VTK_DATA_ARRAY_FREE)
{
this->Data[comp]->SetFreeFunction(save != 0, free);
}
if (updateMaxId)
{
this->Size = numComps * size;
this->MaxId = this->Size - 1;
}
this->DataChanged();
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::SetArrayFreeFunction(void (*callback)(void*))
{
const int numComps = this->GetNumberOfComponents();
for (int i = 0; i < numComps; ++i)
{
this->SetArrayFreeFunction(i, callback);
}
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::SetArrayFreeFunction(
int comp, void (*callback)(void*))
{
const int numComps = this->GetNumberOfComponents();
if (comp >= numComps || comp < 0)
{
vtkErrorMacro("Invalid component number '"
<< comp
<< "' specified. "
"Use `SetNumberOfComponents` first to set the number of components.");
return;
}
this->Data[comp]->SetFreeFunction(false, callback);
}
//-----------------------------------------------------------------------------
template <class ValueType>
typename vtkScaledSOADataArrayTemplate<ValueType>::ValueType*
vtkScaledSOADataArrayTemplate<ValueType>::GetComponentArrayPointer(int comp)
{
const int numComps = this->GetNumberOfComponents();
if (comp >= numComps || comp < 0)
{
vtkErrorMacro("Invalid component number '" << comp << "' specified.");
return nullptr;
}
return this->Data[comp]->GetBuffer();
}
//-----------------------------------------------------------------------------
template <class ValueType>
bool vtkScaledSOADataArrayTemplate<ValueType>::AllocateTuples(vtkIdType numTuples)
{
for (size_t cc = 0, max = this->Data.size(); cc < max; ++cc)
{
if (!this->Data[cc]->Allocate(numTuples))
{
return false;
}
}
return true;
}
//-----------------------------------------------------------------------------
template <class ValueType>
bool vtkScaledSOADataArrayTemplate<ValueType>::ReallocateTuples(vtkIdType numTuples)
{
for (size_t cc = 0, max = this->Data.size(); cc < max; ++cc)
{
if (!this->Data[cc]->Reallocate(numTuples))
{
return false;
}
}
return true;
}
//-----------------------------------------------------------------------------
template <class ValueType>
void* vtkScaledSOADataArrayTemplate<ValueType>::GetVoidPointer(vtkIdType valueIdx)
{
// Allow warnings to be silenced:
const char* silence = getenv("VTK_SILENCE_GET_VOID_POINTER_WARNINGS");
if (!silence)
{
vtkWarningMacro(<< "GetVoidPointer called. This is very expensive for "
"non-array-of-structs subclasses, as the scalar array "
"must be generated for each call. Using the "
"vtkGenericDataArray API with vtkArrayDispatch are "
"preferred. Define the environment variable "
"VTK_SILENCE_GET_VOID_POINTER_WARNINGS to silence "
"this warning. Additionally, for the vtkScaledSOADataArrayTemplate "
"class we also set Scale to 1 since we've scaled how "
"we're storing the data in memory now. ");
}
size_t numValues = this->GetNumberOfValues();
if (!this->AoSCopy)
{
this->AoSCopy = vtkBuffer<ValueType>::New();
}
if (!this->AoSCopy->Allocate(static_cast<vtkIdType>(numValues)))
{
vtkErrorMacro(<< "Error allocating a buffer of " << numValues << " '"
<< this->GetDataTypeAsString() << "' elements.");
return nullptr;
}
this->ExportToVoidPointer(static_cast<void*>(this->AoSCopy->GetBuffer()));
// This is the hacky thing with this class that we now need to set the scale
// to 1 since we internally are storing the memory in an unscaled manner
this->Scale = 1.0;
return static_cast<void*>(this->AoSCopy->GetBuffer() + valueIdx);
}
//-----------------------------------------------------------------------------
template <class ValueType>
void vtkScaledSOADataArrayTemplate<ValueType>::ExportToVoidPointer(void* voidPtr)
{
vtkIdType numTuples = this->GetNumberOfTuples();
if (this->NumberOfComponents * numTuples == 0)
{
// Nothing to do.
return;
}
if (!voidPtr)
{
vtkErrorMacro(<< "Buffer is nullptr.");
return;
}
ValueType* ptr = static_cast<ValueType*>(voidPtr);
for (vtkIdType t = 0; t < numTuples; ++t)
{
for (int c = 0; c < this->NumberOfComponents; ++c)
{
*ptr++ = this->Data[c]->GetBuffer()[t] * this->Scale;
}
}
}
#endif