454 lines
14 KiB
C++
454 lines
14 KiB
C++
/*******************************************************************************
|
|
Copyright (c) 2010 Matt 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.
|
|
*******************************************************************************/
|
|
|
|
#include "testvolume.h"
|
|
|
|
#include "PolyVox/FilePager.h"
|
|
#include "PolyVox/PagedVolume.h"
|
|
#include "PolyVox/RawVolume.h"
|
|
|
|
#include <QtGlobal>
|
|
#include <QtTest>
|
|
|
|
using namespace PolyVox;
|
|
|
|
// This is used to compute a value from a list of integers. We use it to
|
|
// make sure we get the expected result from a series of volume accesses.
|
|
inline int32_t cantorTupleFunction(int32_t previousResult, int32_t value)
|
|
{
|
|
return (( previousResult + value ) * ( previousResult + value + 1 ) + value ) / 2;
|
|
}
|
|
|
|
/*
|
|
* Funtions for testing iteration in a forwards direction
|
|
*/
|
|
|
|
// We allow user provided offset in this function so we can test the case when all samples are inside a volume and also the case when some samples are outside.
|
|
// This is important because samplers are often slower when outside the volume as they have to fall back on directly accessing the volume data.
|
|
template <typename VolumeType>
|
|
int32_t testDirectAccessWithWrappingForwards(const VolumeType* volume, Region region)
|
|
{
|
|
int32_t result = 0;
|
|
|
|
for (int z = region.getLowerZ(); z <= region.getUpperZ(); z++)
|
|
{
|
|
for (int y = region.getLowerY(); y <= region.getUpperY(); y++)
|
|
{
|
|
for (int x = region.getLowerX(); x <= region.getUpperX(); x++)
|
|
{
|
|
//Three level loop now processes 27 voxel neighbourhood
|
|
for(int innerZ = -1; innerZ <=1; innerZ++)
|
|
{
|
|
for(int innerY = -1; innerY <=1; innerY++)
|
|
{
|
|
for(int innerX = -1; innerX <=1; innerX++)
|
|
{
|
|
result = cantorTupleFunction(result, volume->getVoxel(x + innerX, y + innerY, z + innerZ));
|
|
}
|
|
}
|
|
}
|
|
//End of inner loops
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
template <typename VolumeType>
|
|
int32_t testSamplersWithWrappingForwards(VolumeType* volume, Region region)
|
|
{
|
|
int32_t result = 0;
|
|
|
|
//Test the sampler move functions
|
|
typename VolumeType::Sampler xSampler(volume);
|
|
typename VolumeType::Sampler ySampler(volume);
|
|
typename VolumeType::Sampler zSampler(volume);
|
|
|
|
zSampler.setPosition(region.getLowerX(), region.getLowerY(), region.getLowerZ());
|
|
for (int z = region.getLowerZ(); z <= region.getUpperZ(); z++)
|
|
{
|
|
ySampler = zSampler;
|
|
for (int y = region.getLowerY(); y <= region.getUpperY(); y++)
|
|
{
|
|
xSampler = ySampler;
|
|
for (int x = region.getLowerX(); x <= region.getUpperX(); x++)
|
|
{
|
|
xSampler.setPosition(x, y, z); // HACK - Accessing a volume through multiple samplers currently breaks the PagedVolume.
|
|
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1ny1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1ny1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1ny1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx0py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px0py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px0py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1py1nz());
|
|
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1ny0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1ny0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1ny0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx0py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px0py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px0py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1py0pz());
|
|
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1ny1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1ny1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1ny1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx0py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px0py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px0py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1py1pz());
|
|
|
|
xSampler.movePositiveX();
|
|
}
|
|
ySampler.movePositiveY();
|
|
}
|
|
zSampler.movePositiveZ();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* Funtions for testing iteration in a backwards direction
|
|
*/
|
|
|
|
// We allow user provided offset in this function so we can test the case when all samples are inside a volume and also the case when some samples are outside.
|
|
// This is important because samplers are often slower when outside the volume as they have to fall back on directly accessing the volume data.
|
|
template <typename VolumeType>
|
|
int32_t testDirectAccessWithWrappingBackwards(const VolumeType* volume, Region region)
|
|
{
|
|
int32_t result = 0;
|
|
|
|
for (int z = region.getUpperZ(); z >= region.getLowerZ(); z--)
|
|
{
|
|
for (int y = region.getUpperY(); y >= region.getLowerY(); y--)
|
|
{
|
|
for (int x = region.getUpperX(); x >= region.getLowerX(); x--)
|
|
{
|
|
//Three level loop now processes 27 voxel neighbourhood
|
|
for(int innerZ = -1; innerZ <=1; innerZ++)
|
|
{
|
|
for(int innerY = -1; innerY <=1; innerY++)
|
|
{
|
|
for(int innerX = -1; innerX <=1; innerX++)
|
|
{
|
|
result = cantorTupleFunction(result, volume->getVoxel(x + innerX, y + innerY, z + innerZ));
|
|
}
|
|
}
|
|
}
|
|
//End of inner loops
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
template <typename VolumeType>
|
|
int32_t testSamplersWithWrappingBackwards(VolumeType* volume, Region region)
|
|
{
|
|
int32_t result = 0;
|
|
|
|
//Test the sampler move functions
|
|
typename VolumeType::Sampler xSampler(volume);
|
|
typename VolumeType::Sampler ySampler(volume);
|
|
typename VolumeType::Sampler zSampler(volume);
|
|
|
|
zSampler.setPosition(region.getUpperX(), region.getUpperY(), region.getUpperZ());
|
|
for (int z = region.getUpperZ(); z >= region.getLowerZ(); z--)
|
|
{
|
|
ySampler = zSampler;
|
|
for (int y = region.getUpperY(); y >= region.getLowerY(); y--)
|
|
{
|
|
xSampler = ySampler;
|
|
for (int x = region.getUpperX(); x >= region.getLowerX(); x--)
|
|
{
|
|
xSampler.setPosition(x, y, z); // HACK - Accessing a volume through multiple samplers currently breaks the PagedVolume.
|
|
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1ny1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1ny1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1ny1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx0py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px0py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px0py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1py1nz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1py1nz());
|
|
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1ny0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1ny0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1ny0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx0py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px0py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px0py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1py0pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1py0pz());
|
|
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1ny1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1ny1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1ny1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx0py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px0py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px0py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1nx1py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel0px1py1pz());
|
|
result = cantorTupleFunction(result, xSampler.peekVoxel1px1py1pz());
|
|
|
|
xSampler.moveNegativeX();
|
|
}
|
|
ySampler.moveNegativeY();
|
|
}
|
|
zSampler.moveNegativeZ();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
TestVolume::TestVolume()
|
|
{
|
|
m_regVolume = Region(-57, -31, 12, 64, 96, 131); // Deliberatly awkward size
|
|
|
|
m_regInternal = m_regVolume;
|
|
m_regInternal.shiftLowerCorner(4, 2, 2);
|
|
m_regInternal.shiftUpperCorner(-3, -1, -2);
|
|
|
|
m_regExternal = m_regVolume;
|
|
m_regExternal.shiftLowerCorner(-1, -3, -2);
|
|
m_regExternal.shiftUpperCorner(2, 5, 4);
|
|
|
|
m_pFilePager = new FilePager<int32_t>(".");
|
|
|
|
//Create the volumes
|
|
m_pRawVolume = new RawVolume<int32_t>(m_regVolume);
|
|
m_pPagedVolume = new PagedVolume<int32_t>(m_pFilePager, 1 * 1024 * 1024, 32);
|
|
|
|
//Fill the volume with some data
|
|
for (int z = m_regVolume.getLowerZ(); z <= m_regVolume.getUpperZ(); z++)
|
|
{
|
|
for (int y = m_regVolume.getLowerY(); y <= m_regVolume.getUpperY(); y++)
|
|
{
|
|
for (int x = m_regVolume.getLowerX(); x <= m_regVolume.getUpperX(); x++)
|
|
{
|
|
int32_t value = x + y + z;
|
|
m_pRawVolume->setVoxel(x, y, z, value);
|
|
m_pPagedVolume->setVoxel(x, y, z, value);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TestVolume::~TestVolume()
|
|
{
|
|
delete m_pRawVolume;
|
|
delete m_pPagedVolume;
|
|
|
|
delete m_pFilePager;
|
|
}
|
|
|
|
/*
|
|
* RawVolume Tests
|
|
*/
|
|
|
|
void TestVolume::testRawVolumeDirectAccessAllInternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingForwards(m_pRawVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(1004598054));
|
|
}
|
|
|
|
void TestVolume::testRawVolumeSamplersAllInternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingForwards(m_pRawVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(1004598054));
|
|
}
|
|
|
|
void TestVolume::testRawVolumeDirectAccessWithExternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingForwards(m_pRawVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(337227750));
|
|
}
|
|
|
|
void TestVolume::testRawVolumeSamplersWithExternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingForwards(m_pRawVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(337227750));
|
|
}
|
|
|
|
void TestVolume::testRawVolumeDirectAccessAllInternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingBackwards(m_pRawVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-269366578));
|
|
}
|
|
|
|
void TestVolume::testRawVolumeSamplersAllInternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingBackwards(m_pRawVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-269366578));
|
|
}
|
|
|
|
void TestVolume::testRawVolumeDirectAccessWithExternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingBackwards(m_pRawVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-993539594));
|
|
}
|
|
|
|
void TestVolume::testRawVolumeSamplersWithExternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingBackwards(m_pRawVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-993539594));
|
|
}
|
|
|
|
/*
|
|
* PagedVolume Tests
|
|
*/
|
|
|
|
void TestVolume::testPagedVolumeDirectAccessAllInternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingForwards(m_pPagedVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(1004598054));
|
|
}
|
|
|
|
void TestVolume::testPagedVolumeSamplersAllInternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingForwards(m_pPagedVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(1004598054));
|
|
}
|
|
|
|
void TestVolume::testPagedVolumeDirectAccessWithExternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingForwards(m_pPagedVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(337227750));
|
|
}
|
|
|
|
void TestVolume::testPagedVolumeSamplersWithExternalForwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingForwards(m_pPagedVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(337227750));
|
|
}
|
|
|
|
void TestVolume::testPagedVolumeDirectAccessAllInternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingBackwards(m_pPagedVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-269366578));
|
|
}
|
|
|
|
void TestVolume::testPagedVolumeSamplersAllInternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingBackwards(m_pPagedVolume, m_regInternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-269366578));
|
|
}
|
|
|
|
void TestVolume::testPagedVolumeDirectAccessWithExternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testDirectAccessWithWrappingBackwards(m_pPagedVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-993539594));
|
|
}
|
|
|
|
void TestVolume::testPagedVolumeSamplersWithExternalBackwards()
|
|
{
|
|
int32_t result = 0;
|
|
QBENCHMARK
|
|
{
|
|
result = testSamplersWithWrappingBackwards(m_pPagedVolume, m_regExternal);
|
|
}
|
|
QCOMPARE(result, static_cast<int32_t>(-993539594));
|
|
}
|
|
|
|
QTEST_MAIN(TestVolume)
|