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assimp/contrib/Open3DGC/o3dgcTriangleListDecoder.h Normal file
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/*
Copyright (c) 2013 Khaled Mammou - Advanced Micro Devices, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#pragma once
#ifndef O3DGC_TRIANGLE_LIST_DECODER_H
#define O3DGC_TRIANGLE_LIST_DECODER_H
#include "o3dgcCommon.h"
#include "o3dgcTriangleFans.h"
#include "o3dgcBinaryStream.h"
#include "o3dgcAdjacencyInfo.h"
namespace o3dgc
{
//!
template <class T>
class TriangleListDecoder
{
public:
//! Constructor.
TriangleListDecoder(void)
{
m_vertexCount = 0;
m_triangleCount = 0;
m_numTriangles = 0;
m_numVertices = 0;
m_triangles = 0;
m_numConqueredTriangles = 0;
m_numVisitedVertices = 0;
m_visitedVertices = 0;
m_visitedVerticesValence = 0;
m_maxNumVertices = 0;
m_maxNumTriangles = 0;
m_itNumTFans = 0;
m_itDegree = 0;
m_itConfig = 0;
m_itOperation = 0;
m_itIndex = 0;
m_tempTriangles = 0;
m_tempTrianglesSize = 0;
m_decodeTrianglesOrder = false;
m_decodeVerticesOrder = false;
};
//! Destructor.
~TriangleListDecoder(void)
{
delete [] m_tempTriangles;
};
O3DGCStreamType GetStreamType() const { return m_streamType; }
bool GetReorderTriangles() const { return m_decodeTrianglesOrder; }
bool GetReorderVertices() const { return m_decodeVerticesOrder; }
void SetStreamType(O3DGCStreamType streamType) { m_streamType = streamType; }
const AdjacencyInfo & GetVertexToTriangle() const { return m_vertexToTriangle;}
O3DGCErrorCode Decode(T * const triangles,
const long numTriangles,
const long numVertices,
const BinaryStream & bstream,
unsigned long & iterator)
{
unsigned char compressionMask = bstream.ReadUChar(iterator, m_streamType);
m_decodeTrianglesOrder = ( (compressionMask&2) != 0);
m_decodeVerticesOrder = ( (compressionMask&1) != 0);
if (m_decodeVerticesOrder) // vertices reordering not supported
{
return O3DGC_ERROR_NON_SUPPORTED_FEATURE;
}
unsigned long maxSizeV2T = bstream.ReadUInt32(iterator, m_streamType);
Init(triangles, numTriangles, numVertices, maxSizeV2T);
m_ctfans.Load(bstream, iterator, m_decodeTrianglesOrder, m_streamType);
Decompress();
return O3DGC_OK;
}
O3DGCErrorCode Reorder();
private:
O3DGCErrorCode Init(T * const triangles,
const long numTriangles,
const long numVertices,
const long maxSizeV2T);
O3DGCErrorCode Decompress();
O3DGCErrorCode CompueLocalConnectivityInfo(const long focusVertex);
O3DGCErrorCode DecompressTFAN(const long focusVertex);
unsigned long m_itNumTFans;
unsigned long m_itDegree;
unsigned long m_itConfig;
unsigned long m_itOperation;
unsigned long m_itIndex;
long m_maxNumVertices;
long m_maxNumTriangles;
long m_numTriangles;
long m_numVertices;
long m_tempTrianglesSize;
T * m_triangles;
T * m_tempTriangles;
long m_vertexCount;
long m_triangleCount;
long m_numConqueredTriangles;
long m_numVisitedVertices;
long * m_visitedVertices;
long * m_visitedVerticesValence;
AdjacencyInfo m_vertexToTriangle;
CompressedTriangleFans m_ctfans;
TriangleFans m_tfans;
O3DGCStreamType m_streamType;
bool m_decodeTrianglesOrder;
bool m_decodeVerticesOrder;
};
}
#include "o3dgcTriangleListDecoder.inl" // template implementation
#endif // O3DGC_TRIANGLE_LIST_DECODER_H