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Diffstat (limited to 'src/3rdparty/assimp/contrib/Open3DGC/o3dgcTriangleFans.h')
| -rw-r--r-- | src/3rdparty/assimp/contrib/Open3DGC/o3dgcTriangleFans.h | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/src/3rdparty/assimp/contrib/Open3DGC/o3dgcTriangleFans.h b/src/3rdparty/assimp/contrib/Open3DGC/o3dgcTriangleFans.h new file mode 100644 index 000000000..861836428 --- /dev/null +++ b/src/3rdparty/assimp/contrib/Open3DGC/o3dgcTriangleFans.h @@ -0,0 +1,291 @@ +/* +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_FANS_H +#define O3DGC_TRIANGLE_FANS_H + +#include "o3dgcCommon.h" +#include "o3dgcVector.h" +#include "o3dgcBinaryStream.h" + + +namespace o3dgc +{ + const long O3DGC_TFANS_MIN_SIZE_ALLOCATED_VERTICES_BUFFER = 128; + const long O3DGC_TFANS_MIN_SIZE_TFAN_SIZE_BUFFER = 8; + + class CompressedTriangleFans + { + public: + //! Constructor. + CompressedTriangleFans(void) + { + m_streamType = O3DGC_STREAM_TYPE_UNKOWN; + m_bufferAC = 0; + m_sizeBufferAC = 0; + }; + //! Destructor. + ~CompressedTriangleFans(void) + { + delete [] m_bufferAC; + }; + O3DGCStreamType GetStreamType() const { return m_streamType; } + void SetStreamType(O3DGCStreamType streamType) { m_streamType = streamType; } + + O3DGCErrorCode Allocate(long numVertices, long numTriangles) + { + assert(numVertices > 0); + m_numTFANs.Allocate(numVertices); + m_degrees.Allocate(2*numVertices); + m_configs.Allocate(2*numVertices); + m_operations.Allocate(2*numVertices); + m_indices.Allocate(2*numVertices); + m_trianglesOrder.Allocate(numTriangles); + Clear(); + return O3DGC_OK; + } + O3DGCErrorCode PushNumTFans(long numTFans) + { + m_numTFANs.PushBack(numTFans); + return O3DGC_OK; + } + long ReadNumTFans(unsigned long & iterator) const + { + assert(iterator < m_numTFANs.GetSize()); + return m_numTFANs[iterator++]; + } + O3DGCErrorCode PushDegree(long degree) + { + m_degrees.PushBack(degree); + return O3DGC_OK; + } + long ReadDegree(unsigned long & iterator) const + { + assert(iterator < m_degrees.GetSize()); + return m_degrees[iterator++]; + } + O3DGCErrorCode PushConfig(long config) + { + m_configs.PushBack(config); + return O3DGC_OK; + } + long ReadConfig(unsigned long & iterator) const + { + assert(iterator < m_configs.GetSize()); + return m_configs[iterator++]; + } + O3DGCErrorCode PushOperation(long op) + { + m_operations.PushBack(op); + return O3DGC_OK; + } + long ReadOperation(unsigned long & iterator) const + { + assert(iterator < m_operations.GetSize()); + return m_operations[iterator++]; + } + O3DGCErrorCode PushIndex(long index) + { + m_indices.PushBack(index); + return O3DGC_OK; + } + long ReadIndex(unsigned long & iterator) const + { + assert(iterator < m_indices.GetSize()); + return m_indices[iterator++]; + } + O3DGCErrorCode PushTriangleIndex(long index) + { + m_trianglesOrder.PushBack(IntToUInt(index)); + return O3DGC_OK; + } + long ReadTriangleIndex(unsigned long & iterator) const + { + assert(iterator < m_trianglesOrder.GetSize()); + return UIntToInt(m_trianglesOrder[iterator++]); + } + O3DGCErrorCode Clear() + { + m_numTFANs.Clear(); + m_degrees.Clear(); + m_configs.Clear(); + m_operations.Clear(); + m_indices.Clear(); + return O3DGC_OK; + } + O3DGCErrorCode Save(BinaryStream & bstream, + bool encodeTrianglesOrder, + O3DGCStreamType streamType); + O3DGCErrorCode Load(const BinaryStream & bstream, + unsigned long & iterator, + bool decodeTrianglesOrder, + O3DGCStreamType streamType); + + private: + O3DGCErrorCode SaveBinAC(const Vector<long> & data, + BinaryStream & bstream); + O3DGCErrorCode SaveUIntAC(const Vector<long> & data, + const unsigned long M, + BinaryStream & bstream); + O3DGCErrorCode SaveIntACEGC(const Vector<long> & data, + const unsigned long M, + BinaryStream & bstream); + + Vector<long> m_numTFANs; + Vector<long> m_degrees; + Vector<long> m_configs; + Vector<long> m_operations; + Vector<long> m_indices; + Vector<long> m_trianglesOrder; + unsigned char * m_bufferAC; + unsigned long m_sizeBufferAC; + O3DGCStreamType m_streamType; + }; + + //! + class TriangleFans + { + public: + //! Constructor. + TriangleFans(long sizeTFAN = O3DGC_TFANS_MIN_SIZE_TFAN_SIZE_BUFFER, + long verticesSize = O3DGC_TFANS_MIN_SIZE_ALLOCATED_VERTICES_BUFFER) + { + assert(sizeTFAN > 0); + assert(verticesSize > 0); + m_numTFANs = 0; + m_numVertices = 0; + m_verticesAllocatedSize = verticesSize; + m_sizeTFANAllocatedSize = sizeTFAN; + m_sizeTFAN = new long [m_sizeTFANAllocatedSize]; + m_vertices = new long [m_verticesAllocatedSize]; + }; + //! Destructor. + ~TriangleFans(void) + { + delete [] m_vertices; + delete [] m_sizeTFAN; + }; + + O3DGCErrorCode Allocate(long sizeTFAN, long verticesSize) + { + assert(sizeTFAN > 0); + assert(verticesSize > 0); + m_numTFANs = 0; + m_numVertices = 0; + if (m_verticesAllocatedSize < verticesSize) + { + delete [] m_vertices; + m_verticesAllocatedSize = verticesSize; + m_vertices = new long [m_verticesAllocatedSize]; + } + if (m_sizeTFANAllocatedSize < sizeTFAN) + { + delete [] m_sizeTFAN; + m_sizeTFANAllocatedSize = sizeTFAN; + m_sizeTFAN = new long [m_sizeTFANAllocatedSize]; + } + return O3DGC_OK; + }; + O3DGCErrorCode Clear() + { + m_numTFANs = 0; + m_numVertices = 0; + return O3DGC_OK; + } + O3DGCErrorCode AddVertex(long vertex) + { + assert(m_numTFANs >= 0); + assert(m_numTFANs < m_sizeTFANAllocatedSize); + assert(m_numVertices >= 0); + ++m_numVertices; + if (m_numVertices == m_verticesAllocatedSize) + { + m_verticesAllocatedSize *= 2; + long * tmp = m_vertices; + m_vertices = new long [m_verticesAllocatedSize]; + memcpy(m_vertices, tmp, sizeof(long) * m_numVertices); + delete [] tmp; + } + m_vertices[m_numVertices-1] = vertex; + ++m_sizeTFAN[m_numTFANs-1]; + return O3DGC_OK; + } + O3DGCErrorCode AddTFAN() + { + assert(m_numTFANs >= 0); + ++m_numTFANs; + if (m_numTFANs == m_sizeTFANAllocatedSize) + { + m_sizeTFANAllocatedSize *= 2; + long * tmp = m_sizeTFAN; + m_sizeTFAN = new long [m_sizeTFANAllocatedSize]; + memcpy(m_sizeTFAN, tmp, sizeof(long) * m_numTFANs); + delete [] tmp; + } + m_sizeTFAN[m_numTFANs-1] = (m_numTFANs > 1) ? m_sizeTFAN[m_numTFANs-2] : 0; + return O3DGC_OK; + } + long Begin(long tfan) const + { + assert(tfan < m_numTFANs); + assert(tfan >= 0); + return (tfan>0)?m_sizeTFAN[tfan-1]:0; + } + long End(long tfan) const + { + assert(tfan < m_numTFANs); + assert(tfan >= 0); + return m_sizeTFAN[tfan]; + } + long GetVertex(long vertex) const + { + assert(vertex < m_numVertices); + assert(vertex >= 0); + return m_vertices[vertex]; + } + long GetTFANSize(long tfan) const + { + return End(tfan) - Begin(tfan); + } + long GetNumTFANs() const + { + return m_numTFANs; + } + long GetNumVertices() const + { + return m_numVertices; + } + + private: + long m_verticesAllocatedSize; + long m_sizeTFANAllocatedSize; + long m_numTFANs; + long m_numVertices; + long * m_vertices; + long * m_sizeTFAN; + + }; +} +#endif // O3DGC_TRIANGLE_FANS_H + |