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Diffstat (limited to 'src/mesh/assimp-master/contrib/Open3DGC/o3dgcAdjacencyInfo.h')
| -rw-r--r-- | src/mesh/assimp-master/contrib/Open3DGC/o3dgcAdjacencyInfo.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/contrib/Open3DGC/o3dgcAdjacencyInfo.h b/src/mesh/assimp-master/contrib/Open3DGC/o3dgcAdjacencyInfo.h new file mode 100644 index 0000000..72fe3d4 --- /dev/null +++ b/src/mesh/assimp-master/contrib/Open3DGC/o3dgcAdjacencyInfo.h @@ -0,0 +1,155 @@ +/* +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_ADJACENCY_INFO_H +#define O3DGC_ADJACENCY_INFO_H + +#include "o3dgcCommon.h" + +namespace o3dgc +{ + const long O3DGC_MIN_NEIGHBORS_SIZE = 128; + const long O3DGC_MIN_NUM_NEIGHBORS_SIZE = 16; + //! + class AdjacencyInfo + { + public: + //! Constructor. + AdjacencyInfo(long numNeighborsSize = O3DGC_MIN_NUM_NEIGHBORS_SIZE, + long neighborsSize = O3DGC_MIN_NUM_NEIGHBORS_SIZE) + { + m_numElements = 0; + m_neighborsSize = neighborsSize; + m_numNeighborsSize = numNeighborsSize; + m_numNeighbors = new long [m_numNeighborsSize]; + m_neighbors = new long [m_neighborsSize ]; + }; + //! Destructor. + ~AdjacencyInfo(void) + { + delete [] m_neighbors; + delete [] m_numNeighbors; + }; + O3DGCErrorCode Allocate(long numNeighborsSize, long neighborsSize) + { + m_numElements = numNeighborsSize; + if (neighborsSize > m_neighborsSize) + { + delete [] m_numNeighbors; + m_neighborsSize = neighborsSize; + m_numNeighbors = new long [m_numNeighborsSize]; + } + if (numNeighborsSize > m_numNeighborsSize) + { + delete [] m_neighbors; + m_numNeighborsSize = numNeighborsSize; + m_neighbors = new long [m_neighborsSize]; + } + return O3DGC_OK; + } + O3DGCErrorCode AllocateNumNeighborsArray(long numElements) + { + if (numElements > m_numNeighborsSize) + { + delete [] m_numNeighbors; + m_numNeighborsSize = numElements; + m_numNeighbors = new long [m_numNeighborsSize]; + } + m_numElements = numElements; + return O3DGC_OK; + } + O3DGCErrorCode AllocateNeighborsArray() + { + for(long i = 1; i < m_numElements; ++i) + { + m_numNeighbors[i] += m_numNeighbors[i-1]; + } + if (m_numNeighbors[m_numElements-1] > m_neighborsSize) + { + delete [] m_neighbors; + m_neighborsSize = m_numNeighbors[m_numElements-1]; + m_neighbors = new long [m_neighborsSize]; + } + return O3DGC_OK; + } + O3DGCErrorCode ClearNumNeighborsArray() + { + memset(m_numNeighbors, 0x00, sizeof(long) * m_numElements); + return O3DGC_OK; + } + O3DGCErrorCode ClearNeighborsArray() + { + memset(m_neighbors, 0xFF, sizeof(long) * m_neighborsSize); + return O3DGC_OK; + } + O3DGCErrorCode AddNeighbor(long element, long neighbor) + { + assert(m_numNeighbors[element] <= m_numNeighbors[m_numElements-1]); + long p0 = Begin(element); + long p1 = End(element); + for(long p = p0; p < p1; p++) + { + if (m_neighbors[p] == -1) + { + m_neighbors[p] = neighbor; + return O3DGC_OK; + } + } + return O3DGC_ERROR_BUFFER_FULL; + } + long Begin(long element) const + { + assert(element < m_numElements); + assert(element >= 0); + return (element>0)?m_numNeighbors[element-1]:0; + } + long End(long element) const + { + assert(element < m_numElements); + assert(element >= 0); + return m_numNeighbors[element]; + } + long GetNeighbor(long element) const + { + assert(element < m_neighborsSize); + assert(element >= 0); + return m_neighbors[element]; + } + long GetNumNeighbors(long element) const + { + return End(element) - Begin(element); + } + long * GetNumNeighborsBuffer() { return m_numNeighbors;} + long * GetNeighborsBuffer() { return m_neighbors;} + + private: + long m_neighborsSize; // actual allocated size for m_neighbors + long m_numNeighborsSize; // actual allocated size for m_numNeighbors + long m_numElements; // number of elements + long * m_neighbors; // + long * m_numNeighbors; // + }; +} +#endif // O3DGC_ADJACENCY_INFO_H + |