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More work to make Mesh be templatized on IndexType.

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This requires making the SurfaceExtractor classes be templatised on MeshType (at least for now - maybe there is a better approach when working with free functions). This has been partially done for CubicSurfaceExtractor.
This commit is contained in:
David Williams
2014-06-03 16:52:09 +02:00
parent ffdf606ad6
commit 06540d6c97
5 changed files with 33 additions and 32 deletions
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13
library/PolyVoxCore/include/PolyVoxCore/CubicSurfaceExtractor.h
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@@ -113,7 +113,7 @@ namespace PolyVox
///
/// Another scenario which sometimes results in confusion is when you wish to extract a region which corresponds to the whole volume, partcularly when solid voxels extend right to the edge of the volume.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<typename VolumeType, typename IsQuadNeeded>
template<typename VolumeType, typename MeshType, typename IsQuadNeeded>
class CubicSurfaceExtractor
{
struct IndexAndMaterial
@@ -150,9 +150,9 @@ namespace PolyVox
// This is a bit ugly - it seems that the C++03 syntax is different from the C++11 syntax? See this thread: http://stackoverflow.com/questions/6076015/typename-outside-of-template
// Long term we should probably come back to this and if the #ifdef is still needed then maybe it should check for C++11 mode instead of MSVC?
#if defined(_MSC_VER)
CubicSurfaceExtractor(VolumeType* volData, Region region, Mesh<CubicVertex<typename VolumeType::VoxelType> >* result, WrapMode eWrapMode = WrapModes::Border, typename VolumeType::VoxelType tBorderValue = VolumeType::VoxelType(), bool bMergeQuads = true, IsQuadNeeded isQuadNeeded = IsQuadNeeded());
CubicSurfaceExtractor(VolumeType* volData, Region region, MeshType* result, WrapMode eWrapMode = WrapModes::Border, typename VolumeType::VoxelType tBorderValue = VolumeType::VoxelType(), bool bMergeQuads = true, IsQuadNeeded isQuadNeeded = IsQuadNeeded());
#else
CubicSurfaceExtractor(VolumeType* volData, Region region, Mesh<CubicVertex<typename VolumeType::VoxelType> >* result, WrapMode eWrapMode = WrapModes::Border, typename VolumeType::VoxelType tBorderValue = typename VolumeType::VoxelType(), bool bMergeQuads = true, IsQuadNeeded isQuadNeeded = IsQuadNeeded());
CubicSurfaceExtractor(VolumeType* volData, Region region, MeshType* result, WrapMode eWrapMode = WrapModes::Border, typename VolumeType::VoxelType tBorderValue = typename VolumeType::VoxelType(), bool bMergeQuads = true, IsQuadNeeded isQuadNeeded = IsQuadNeeded());
#endif
@@ -172,7 +172,7 @@ namespace PolyVox
Region m_regSizeInVoxels;
//The surface patch we are currently filling.
Mesh<CubicVertex<typename VolumeType::VoxelType> >* m_meshCurrent;
MeshType* m_meshCurrent;
//Used to avoid creating duplicate vertices.
Array<3, IndexAndMaterial> m_previousSliceVertices;
@@ -198,8 +198,9 @@ namespace PolyVox
template<typename VolumeType, typename IsQuadNeeded>
Mesh<CubicVertex<typename VolumeType::VoxelType> > extractCubicMesh(VolumeType* volData, Region region, WrapMode eWrapMode, typename VolumeType::VoxelType tBorderValue, bool bMergeQuads, IsQuadNeeded isQuadNeeded)
{
Mesh<CubicVertex<typename VolumeType::VoxelType> > result;
CubicSurfaceExtractor<VolumeType, IsQuadNeeded> extractor(volData, region, &result, eWrapMode, tBorderValue, bMergeQuads, isQuadNeeded);
typedef Mesh<CubicVertex<typename VolumeType::VoxelType> > MeshType;
MeshType result;
CubicSurfaceExtractor<VolumeType, MeshType, IsQuadNeeded> extractor(volData, region, &result, eWrapMode, tBorderValue, bMergeQuads, isQuadNeeded);
extractor.execute();
return result;
}

24
library/PolyVoxCore/include/PolyVoxCore/CubicSurfaceExtractor.inl
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@@ -32,11 +32,11 @@ namespace PolyVox
// happens when we have a 2x2x2 group of voxels, all with different materials and some/all partially transparent.
// The vertex position at the center of this group is then going to be used by all eight voxels all with different
// materials.
template<typename VolumeType, typename IsQuadNeeded>
const uint32_t CubicSurfaceExtractor<VolumeType, IsQuadNeeded>::MaxVerticesPerPosition = 8;
template<typename VolumeType, typename MeshType, typename IsQuadNeeded>
const uint32_t CubicSurfaceExtractor<VolumeType, MeshType, IsQuadNeeded>::MaxVerticesPerPosition = 8;
template<typename VolumeType, typename IsQuadNeeded>
CubicSurfaceExtractor<VolumeType, IsQuadNeeded>::CubicSurfaceExtractor(VolumeType* volData, Region region, Mesh<CubicVertex<typename VolumeType::VoxelType> >* result, WrapMode eWrapMode, typename VolumeType::VoxelType tBorderValue, bool bMergeQuads, IsQuadNeeded isQuadNeeded)
template<typename VolumeType, typename MeshType, typename IsQuadNeeded>
CubicSurfaceExtractor<VolumeType, MeshType, IsQuadNeeded>::CubicSurfaceExtractor(VolumeType* volData, Region region, MeshType* result, WrapMode eWrapMode, typename VolumeType::VoxelType tBorderValue, bool bMergeQuads, IsQuadNeeded isQuadNeeded)
:m_volData(volData)
,m_regSizeInVoxels(region)
,m_meshCurrent(result)
@@ -53,8 +53,8 @@ namespace PolyVox
POLYVOX_THROW_IF(region.getDepthInVoxels() > maxReionDimension, std::invalid_argument, "Requested extraction region exceeds maximum dimensions");
}
template<typename VolumeType, typename IsQuadNeeded>
void CubicSurfaceExtractor<VolumeType, IsQuadNeeded>::execute()
template<typename VolumeType, typename MeshType, typename IsQuadNeeded>
void CubicSurfaceExtractor<VolumeType, MeshType, IsQuadNeeded>::execute()
{
Timer timer;
m_meshCurrent->clear();
@@ -204,8 +204,8 @@ namespace PolyVox
<< "x" << m_regSizeInVoxels.getDepthInVoxels() << ")");
}
template<typename VolumeType, typename IsQuadNeeded>
int32_t CubicSurfaceExtractor<VolumeType, IsQuadNeeded>::addVertex(uint32_t uX, uint32_t uY, uint32_t uZ, typename VolumeType::VoxelType uMaterialIn, Array<3, IndexAndMaterial>& existingVertices)
template<typename VolumeType, typename MeshType, typename IsQuadNeeded>
int32_t CubicSurfaceExtractor<VolumeType, MeshType, IsQuadNeeded>::addVertex(uint32_t uX, uint32_t uY, uint32_t uZ, typename VolumeType::VoxelType uMaterialIn, Array<3, IndexAndMaterial>& existingVertices)
{
for(uint32_t ct = 0; ct < MaxVerticesPerPosition; ct++)
{
@@ -236,8 +236,8 @@ namespace PolyVox
return -1; //Should never happen.
}
template<typename VolumeType, typename IsQuadNeeded>
bool CubicSurfaceExtractor<VolumeType, IsQuadNeeded>::performQuadMerging(std::list<Quad>& quads)
template<typename VolumeType, typename MeshType, typename IsQuadNeeded>
bool CubicSurfaceExtractor<VolumeType, MeshType, IsQuadNeeded>::performQuadMerging(std::list<Quad>& quads)
{
bool bDidMerge = false;
for(typename std::list<Quad>::iterator outerIter = quads.begin(); outerIter != quads.end(); outerIter++)
@@ -266,8 +266,8 @@ namespace PolyVox
return bDidMerge;
}
template<typename VolumeType, typename IsQuadNeeded>
bool CubicSurfaceExtractor<VolumeType, IsQuadNeeded>::mergeQuads(Quad& q1, Quad& q2)
template<typename VolumeType, typename MeshType, typename IsQuadNeeded>
bool CubicSurfaceExtractor<VolumeType, MeshType, IsQuadNeeded>::mergeQuads(Quad& q1, Quad& q2)
{
//All four vertices of a given quad have the same data,
//so just check that the first pair of vertices match.

16
library/PolyVoxCore/include/PolyVoxCore/Mesh.h
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@@ -49,16 +49,16 @@ namespace PolyVox
Mesh();
~Mesh();
const std::vector<uint32_t>& getIndices(void) const;
const std::vector<IndexType>& getIndices(void) const;
uint32_t getNoOfIndices(void) const;
uint32_t getNoOfVertices(void) const;
IndexType getNoOfVertices(void) const;
const std::vector<VertexType>& getVertices(void) const;
const Vector3DInt32& getOffset(void) const;
void setOffset(const Vector3DInt32& offset);
void addTriangle(uint32_t index0, uint32_t index1, uint32_t index2);
uint32_t addVertex(const VertexType& vertex);
void addTriangle(IndexType index0, IndexType index1, IndexType index2);
IndexType addVertex(const VertexType& vertex);
void clear(void);
bool isEmpty(void) const;
void removeUnusedVertices(void);
@@ -66,17 +66,17 @@ namespace PolyVox
Vector3DInt32 m_offset;
public:
std::vector<uint32_t> m_vecTriangleIndices;
std::vector<IndexType> m_vecTriangleIndices;
std::vector<VertexType> m_vecVertices;
};
template <typename MeshType>
Mesh< Vertex< typename MeshType::VertexType::DataType > > decode(const MeshType& mesh)
Mesh< Vertex< typename MeshType::VertexType::DataType >, typename MeshType::IndexType > decode(const MeshType& mesh)
{
Mesh< Vertex< typename MeshType::VertexType::DataType > > result;
Mesh< Vertex< typename MeshType::VertexType::DataType >, typename MeshType::IndexType > result;
result.m_vecVertices.resize(mesh.m_vecVertices.size());
for(uint32_t ct = 0; ct < mesh.m_vecVertices.size(); ct++)
for(MeshType::IndexType ct = 0; ct < mesh.m_vecVertices.size(); ct++)
{
result.m_vecVertices[ct] = decode(mesh.m_vecVertices[ct]);
}

10
library/PolyVoxCore/include/PolyVoxCore/Mesh.inl
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@@ -34,7 +34,7 @@ namespace PolyVox
}
template <typename VertexType, typename IndexType>
const std::vector<uint32_t>& Mesh<VertexType, IndexType>::getIndices(void) const
const std::vector<IndexType>& Mesh<VertexType, IndexType>::getIndices(void) const
{
return m_vecTriangleIndices;
}
@@ -46,7 +46,7 @@ namespace PolyVox
}
template <typename VertexType, typename IndexType>
uint32_t Mesh<VertexType, IndexType>::getNoOfVertices(void) const
IndexType Mesh<VertexType, IndexType>::getNoOfVertices(void) const
{
return m_vecVertices.size();
}
@@ -70,7 +70,7 @@ namespace PolyVox
}
template <typename VertexType, typename IndexType>
void Mesh<VertexType, IndexType>::addTriangle(uint32_t index0, uint32_t index1, uint32_t index2)
void Mesh<VertexType, IndexType>::addTriangle(IndexType index0, IndexType index1, IndexType index2)
{
//Make sure the specified indices correspond to valid vertices.
POLYVOX_ASSERT(index0 < m_vecVertices.size(), "Index points at an invalid vertex.");
@@ -83,7 +83,7 @@ namespace PolyVox
}
template <typename VertexType, typename IndexType>
uint32_t Mesh<VertexType, IndexType>::addVertex(const VertexType& vertex)
IndexType Mesh<VertexType, IndexType>::addVertex(const VertexType& vertex)
{
m_vecVertices.push_back(vertex);
return m_vecVertices.size() - 1;
@@ -116,7 +116,7 @@ namespace PolyVox
int noOfUsedVertices = 0;
std::vector<uint32_t> newPos(m_vecVertices.size());
for(uint32_t vertCt = 0; vertCt < m_vecVertices.size(); vertCt++)
for(IndexType vertCt = 0; vertCt < m_vecVertices.size(); vertCt++)
{
if(isVertexUsed[vertCt])
{

2
library/PolyVoxCore/include/PolyVoxCore/PolyVoxForwardDeclarations.h
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@@ -76,7 +76,7 @@ namespace PolyVox
// CubicSurfaceExtractor
////////////////////////////////////////////////////////////////////////////////
template<typename VoxelType> class DefaultIsQuadNeeded;
template<typename VolumeType, typename IsQuadNeeded = DefaultIsQuadNeeded<typename VolumeType::VoxelType> > class CubicSurfaceExtractor;
template<typename VolumeType, typename MeshType, typename IsQuadNeeded = DefaultIsQuadNeeded<typename VolumeType::VoxelType> > class CubicSurfaceExtractor;
////////////////////////////////////////////////////////////////////////////////
// CubicVertex