933 lines
40 KiB
C++
933 lines
40 KiB
C++
/*
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Copyright (c) 2013 Khaled Mammou - Advanced Micro Devices, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#pragma once
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#ifndef O3DGC_SC3DMC_ENCODER_INL
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#define O3DGC_SC3DMC_ENCODER_INL
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#include "o3dgcArithmeticCodec.h"
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#include "o3dgcTimer.h"
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#include "o3dgcVector.h"
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#include "o3dgcBinaryStream.h"
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#include "o3dgcCommon.h"
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//#define DEBUG_VERBOSE
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#pragma warning(push)
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#pragma warning(disable : 4456)
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namespace o3dgc
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{
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#ifdef DEBUG_VERBOSE
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FILE * g_fileDebugSC3DMCEnc = NULL;
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#endif //DEBUG_VERBOSE
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template <class T>
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O3DGCErrorCode SC3DMCEncoder<T>::Encode(const SC3DMCEncodeParams & params,
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const IndexedFaceSet<T> & ifs,
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BinaryStream & bstream)
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{
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// Encode header
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unsigned long start = bstream.GetSize();
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EncodeHeader(params, ifs, bstream);
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// Encode payload
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EncodePayload(params, ifs, bstream);
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bstream.WriteUInt32(m_posSize, bstream.GetSize() - start, m_streamType);
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return O3DGC_OK;
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}
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template <class T>
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O3DGCErrorCode SC3DMCEncoder<T>::EncodeHeader(const SC3DMCEncodeParams & params,
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const IndexedFaceSet<T> & ifs,
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BinaryStream & bstream)
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{
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m_streamType = params.GetStreamType();
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bstream.WriteUInt32(O3DGC_SC3DMC_START_CODE, m_streamType);
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m_posSize = bstream.GetSize();
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bstream.WriteUInt32(0, m_streamType); // to be filled later
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bstream.WriteUChar(O3DGC_SC3DMC_ENCODE_MODE_TFAN, m_streamType);
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bstream.WriteFloat32((float)ifs.GetCreaseAngle(), m_streamType);
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unsigned char mask = 0;
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bool markerBit0 = false;
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bool markerBit1 = false;
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bool markerBit2 = false;
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bool markerBit3 = false;
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mask += (ifs.GetCCW() );
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mask += (ifs.GetSolid() << 1);
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mask += (ifs.GetConvex() << 2);
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mask += (ifs.GetIsTriangularMesh() << 3);
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mask += (markerBit0 << 4);
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mask += (markerBit1 << 5);
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mask += (markerBit2 << 6);
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mask += (markerBit3 << 7);
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bstream.WriteUChar(mask, m_streamType);
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bstream.WriteUInt32(ifs.GetNCoord(), m_streamType);
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bstream.WriteUInt32(ifs.GetNNormal(), m_streamType);
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bstream.WriteUInt32(ifs.GetNumFloatAttributes(), m_streamType);
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bstream.WriteUInt32(ifs.GetNumIntAttributes(), m_streamType);
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if (ifs.GetNCoord() > 0)
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{
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bstream.WriteUInt32(ifs.GetNCoordIndex(), m_streamType);
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for(int j=0 ; j<3 ; ++j)
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{
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bstream.WriteFloat32((float) ifs.GetCoordMin(j), m_streamType);
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bstream.WriteFloat32((float) ifs.GetCoordMax(j), m_streamType);
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}
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bstream.WriteUChar((unsigned char) params.GetCoordQuantBits(), m_streamType);
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}
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if (ifs.GetNNormal() > 0)
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{
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bstream.WriteUInt32(0, m_streamType);
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for(int j=0 ; j<3 ; ++j)
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{
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bstream.WriteFloat32((float) ifs.GetNormalMin(j), m_streamType);
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bstream.WriteFloat32((float) ifs.GetNormalMax(j), m_streamType);
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}
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bstream.WriteUChar(true, m_streamType); //(unsigned char) ifs.GetNormalPerVertex()
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bstream.WriteUChar((unsigned char) params.GetNormalQuantBits(), m_streamType);
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}
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for(unsigned long a = 0; a < ifs.GetNumFloatAttributes(); ++a)
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{
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bstream.WriteUInt32(ifs.GetNFloatAttribute(a), m_streamType);
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if (ifs.GetNFloatAttribute(a) > 0)
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{
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assert(ifs.GetFloatAttributeDim(a) < (unsigned long) O3DGC_MAX_UCHAR8);
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bstream.WriteUInt32(0, m_streamType);
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unsigned char d = (unsigned char) ifs.GetFloatAttributeDim(a);
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bstream.WriteUChar(d, m_streamType);
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for(unsigned char j = 0 ; j < d ; ++j)
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{
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bstream.WriteFloat32((float) ifs.GetFloatAttributeMin(a, j), m_streamType);
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bstream.WriteFloat32((float) ifs.GetFloatAttributeMax(a, j), m_streamType);
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}
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bstream.WriteUChar(true, m_streamType); //(unsigned char) ifs.GetFloatAttributePerVertex(a)
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bstream.WriteUChar((unsigned char) ifs.GetFloatAttributeType(a), m_streamType);
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bstream.WriteUChar((unsigned char) params.GetFloatAttributeQuantBits(a), m_streamType);
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}
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}
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for(unsigned long a = 0; a < ifs.GetNumIntAttributes(); ++a)
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{
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bstream.WriteUInt32(ifs.GetNIntAttribute(a), m_streamType);
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if (ifs.GetNIntAttribute(a) > 0)
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{
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assert(ifs.GetFloatAttributeDim(a) < (unsigned long) O3DGC_MAX_UCHAR8);
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bstream.WriteUInt32(0, m_streamType);
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bstream.WriteUChar((unsigned char) ifs.GetIntAttributeDim(a), m_streamType);
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bstream.WriteUChar(true, m_streamType); // (unsigned char) ifs.GetIntAttributePerVertex(a)
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bstream.WriteUChar((unsigned char) ifs.GetIntAttributeType(a), m_streamType);
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}
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}
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return O3DGC_OK;
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}
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template <class T>
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O3DGCErrorCode SC3DMCEncoder<T>::QuantizeFloatArray(const Real * const floatArray,
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unsigned long numFloatArray,
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unsigned long dimFloatArray,
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unsigned long stride,
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const Real * const minFloatArray,
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const Real * const maxFloatArray,
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unsigned long nQBits)
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{
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const unsigned long size = numFloatArray * dimFloatArray;
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Real delta[O3DGC_SC3DMC_MAX_DIM_ATTRIBUTES];
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Real r;
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for(unsigned long d = 0; d < dimFloatArray; d++)
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{
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r = maxFloatArray[d] - minFloatArray[d];
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if (r > 0.0f)
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{
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delta[d] = (float)((1 << nQBits) - 1) / r;
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}
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else
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{
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delta[d] = 1.0f;
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}
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}
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if (m_quantFloatArraySize < size)
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{
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delete [] m_quantFloatArray;
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m_quantFloatArraySize = size;
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m_quantFloatArray = new long [size];
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}
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for(unsigned long v = 0; v < numFloatArray; ++v)
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{
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for(unsigned long d = 0; d < dimFloatArray; ++d)
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{
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m_quantFloatArray[v * stride + d] = (long)((floatArray[v * stride + d]-minFloatArray[d]) * delta[d] + 0.5f);
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}
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}
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return O3DGC_OK;
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}
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template <class T>
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O3DGCErrorCode SC3DMCEncoder<T>::EncodeFloatArray(const Real * const floatArray,
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unsigned long numFloatArray,
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unsigned long dimFloatArray,
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unsigned long stride,
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const Real * const minFloatArray,
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const Real * const maxFloatArray,
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unsigned long nQBits,
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const IndexedFaceSet<T> & ifs,
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O3DGCSC3DMCPredictionMode predMode,
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BinaryStream & bstream)
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{
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assert(dimFloatArray < O3DGC_SC3DMC_MAX_DIM_ATTRIBUTES);
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long predResidual, v, uPredResidual;
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unsigned long nPred;
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Arithmetic_Codec ace;
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Static_Bit_Model bModel0;
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Adaptive_Bit_Model bModel1;
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const AdjacencyInfo & v2T = m_triangleListEncoder.GetVertexToTriangle();
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const long * const vmap = m_triangleListEncoder.GetVMap();
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const long * const invVMap = m_triangleListEncoder.GetInvVMap();
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const T * const triangles = ifs.GetCoordIndex();
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const long nvert = (long) numFloatArray;
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unsigned long start = bstream.GetSize();
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unsigned char mask = predMode & 7;
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const unsigned long M = O3DGC_SC3DMC_MAX_PREDICTION_SYMBOLS - 1;
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unsigned long nSymbols = O3DGC_SC3DMC_MAX_PREDICTION_SYMBOLS;
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unsigned long nPredictors = O3DGC_SC3DMC_MAX_PREDICTION_NEIGHBORS;
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Adaptive_Data_Model mModelValues(M+2);
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Adaptive_Data_Model mModelPreds(O3DGC_SC3DMC_MAX_PREDICTION_NEIGHBORS+1);
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memset(m_freqSymbols, 0, sizeof(unsigned long) * O3DGC_SC3DMC_MAX_PREDICTION_SYMBOLS);
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memset(m_freqPreds , 0, sizeof(unsigned long) * O3DGC_SC3DMC_MAX_PREDICTION_NEIGHBORS);
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if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
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{
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mask += (O3DGC_SC3DMC_BINARIZATION_ASCII & 7)<<4;
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m_predictors.Allocate(nvert);
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m_predictors.Clear();
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}
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else
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{
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mask += (O3DGC_SC3DMC_BINARIZATION_AC_EGC & 7)<<4;
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const unsigned int NMAX = numFloatArray * dimFloatArray * 8 + 100;
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if ( m_sizeBufferAC < NMAX )
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{
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delete [] m_bufferAC;
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m_sizeBufferAC = NMAX;
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m_bufferAC = new unsigned char [m_sizeBufferAC];
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}
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ace.set_buffer(NMAX, m_bufferAC);
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ace.start_encoder();
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ace.ExpGolombEncode(0, 0, bModel0, bModel1);
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ace.ExpGolombEncode(M, 0, bModel0, bModel1);
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}
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bstream.WriteUInt32(0, m_streamType);
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bstream.WriteUChar(mask, m_streamType);
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#ifdef DEBUG_VERBOSE
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printf("FloatArray (%i, %i)\n", numFloatArray, dimFloatArray);
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fprintf(g_fileDebugSC3DMCEnc, "FloatArray (%i, %i)\n", numFloatArray, dimFloatArray);
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#endif //DEBUG_VERBOSE
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if (predMode == O3DGC_SC3DMC_SURF_NORMALS_PREDICTION)
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{
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const Real curMinFloatArray[2] = {(Real)(-2.0),(Real)(-2.0)};
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const Real curMaxFloatArray[2] = {(Real)(2.0),(Real)(2.0)};
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if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
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{
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for(unsigned long i = 0; i < numFloatArray; ++i)
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{
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bstream.WriteIntASCII(m_predictors[i]);
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}
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}
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else
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{
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Adaptive_Data_Model dModel(12);
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for(unsigned long i = 0; i < numFloatArray; ++i)
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{
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ace.encode(IntToUInt(m_predictors[i]), dModel);
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}
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}
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QuantizeFloatArray(floatArray, numFloatArray, dimFloatArray, stride, curMinFloatArray, curMaxFloatArray, nQBits + 1);
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}
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else
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{
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QuantizeFloatArray(floatArray, numFloatArray, dimFloatArray, stride, minFloatArray, maxFloatArray, nQBits);
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}
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for (long vm=0; vm < nvert; ++vm)
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{
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nPred = 0;
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v = invVMap[vm];
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assert( v >= 0 && v < nvert);
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if ( v2T.GetNumNeighbors(v) > 0 &&
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predMode != O3DGC_SC3DMC_NO_PREDICTION)
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{
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int u0 = v2T.Begin(v);
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int u1 = v2T.End(v);
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for (long u = u0; u < u1; u++)
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{
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long ta = v2T.GetNeighbor(u);
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if ( predMode == O3DGC_SC3DMC_PARALLELOGRAM_PREDICTION )
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{
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long a,b;
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if ((long) triangles[ta*3] == v)
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{
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a = triangles[ta*3 + 1];
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b = triangles[ta*3 + 2];
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}
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else if ((long) triangles[ta*3 + 1] == v)
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{
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a = triangles[ta*3 + 0];
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b = triangles[ta*3 + 2];
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}
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else
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{
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a = triangles[ta*3 + 0];
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b = triangles[ta*3 + 1];
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}
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if ( vmap[a] < vm && vmap[b] < vm)
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{
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int u0 = v2T.Begin(a);
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int u1 = v2T.End(a);
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for (long u = u0; u < u1; u++)
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{
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long tb = v2T.GetNeighbor(u);
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long c = -1;
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bool foundB = false;
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for(long k = 0; k < 3; ++k)
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{
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long x = triangles[tb*3 + k];
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if (x == b)
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{
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foundB = true;
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}
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if (vmap[x] < vm && x != a && x != b)
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{
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c = x;
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}
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}
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if (c != -1 && foundB)
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{
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SC3DMCTriplet id = {min(vmap[a], vmap[b]), max(vmap[a], vmap[b]), -vmap[c]-1};
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unsigned long p = Insert(id, nPred, m_neighbors);
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if (p != 0xFFFFFFFF)
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{
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for (unsigned long i = 0; i < dimFloatArray; i++)
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{
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m_neighbors[p].m_pred[i] = m_quantFloatArray[a*stride+i] +
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m_quantFloatArray[b*stride+i] -
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m_quantFloatArray[c*stride+i];
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}
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}
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}
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}
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}
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}
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if ( predMode == O3DGC_SC3DMC_SURF_NORMALS_PREDICTION ||
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predMode == O3DGC_SC3DMC_PARALLELOGRAM_PREDICTION ||
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predMode == O3DGC_SC3DMC_DIFFERENTIAL_PREDICTION )
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{
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for(long k = 0; k < 3; ++k)
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{
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long w = triangles[ta*3 + k];
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if ( vmap[w] < vm )
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{
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SC3DMCTriplet id = {-1, -1, vmap[w]};
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unsigned long p = Insert(id, nPred, m_neighbors);
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if (p != 0xFFFFFFFF)
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{
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for (unsigned long i = 0; i < dimFloatArray; i++)
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{
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m_neighbors[p].m_pred[i] = m_quantFloatArray[w*stride+i];
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}
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}
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}
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}
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}
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}
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}
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if (nPred > 1)
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{
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// find best predictor
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unsigned long bestPred = 0xFFFFFFFF;
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double bestCost = O3DGC_MAX_DOUBLE;
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double cost;
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#ifdef DEBUG_VERBOSE1
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printf("\t\t vm %i\n", vm);
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fprintf(g_fileDebugSC3DMCEnc, "\t\t vm %i\n", vm);
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#endif //DEBUG_VERBOSE
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for (unsigned long p = 0; p < nPred; ++p)
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{
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#ifdef DEBUG_VERBOSE1
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printf("\t\t pred a = %i b = %i c = %i \n", m_neighbors[p].m_id.m_a, m_neighbors[p].m_id.m_b, m_neighbors[p].m_id.m_c);
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fprintf(g_fileDebugSC3DMCEnc, "\t\t pred a = %i b = %i c = %i \n", m_neighbors[p].m_id.m_a, m_neighbors[p].m_id.m_b, m_neighbors[p].m_id.m_c);
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#endif //DEBUG_VERBOSE
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cost = -log2((m_freqPreds[p]+1.0) / nPredictors );
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for (unsigned long i = 0; i < dimFloatArray; ++i)
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{
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#ifdef DEBUG_VERBOSE1
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printf("\t\t\t %i\n", m_neighbors[p].m_pred[i]);
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fprintf(g_fileDebugSC3DMCEnc, "\t\t\t %i\n", m_neighbors[p].m_pred[i]);
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#endif //DEBUG_VERBOSE
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predResidual = (long) IntToUInt(m_quantFloatArray[v*stride+i] - m_neighbors[p].m_pred[i]);
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if (predResidual < (long) M)
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{
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cost += -log2((m_freqSymbols[predResidual]+1.0) / nSymbols );
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}
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else
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{
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cost += -log2((m_freqSymbols[M] + 1.0) / nSymbols ) + log2((double) (predResidual-M));
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}
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}
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if (cost < bestCost)
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{
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bestCost = cost;
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bestPred = p;
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}
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}
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if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
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{
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m_predictors.PushBack((unsigned char) bestPred);
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}
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else
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{
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ace.encode(bestPred, mModelPreds);
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}
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#ifdef DEBUG_VERBOSE1
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printf("best (%i, %i, %i) \t pos %i\n", m_neighbors[bestPred].m_id.m_a, m_neighbors[bestPred].m_id.m_b, m_neighbors[bestPred].m_id.m_c, bestPred);
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fprintf(g_fileDebugSC3DMCEnc, "best (%i, %i, %i) \t pos %i\n", m_neighbors[bestPred].m_id.m_a, m_neighbors[bestPred].m_id.m_b, m_neighbors[bestPred].m_id.m_c, bestPred);
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#endif //DEBUG_VERBOSE
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// use best predictor
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for (unsigned long i = 0; i < dimFloatArray; ++i)
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{
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predResidual = m_quantFloatArray[v*stride+i] - m_neighbors[bestPred].m_pred[i];
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uPredResidual = IntToUInt(predResidual);
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++m_freqSymbols[(uPredResidual < (long) M)? uPredResidual : M];
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#ifdef DEBUG_VERBOSE
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printf("%i \t %i \t [%i]\n", vm*dimFloatArray+i, predResidual, m_neighbors[bestPred].m_pred[i]);
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fprintf(g_fileDebugSC3DMCEnc, "%i \t %i \t [%i]\n", vm*dimFloatArray+i, predResidual, m_neighbors[bestPred].m_pred[i]);
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#endif //DEBUG_VERBOSE
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if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
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{
|
|
bstream.WriteIntASCII(predResidual);
|
|
}
|
|
else
|
|
{
|
|
EncodeIntACEGC(predResidual, ace, mModelValues, bModel0, bModel1, M);
|
|
}
|
|
}
|
|
++m_freqPreds[bestPred];
|
|
nSymbols += dimFloatArray;
|
|
++nPredictors;
|
|
}
|
|
else if ( vm > 0 && predMode != O3DGC_SC3DMC_NO_PREDICTION)
|
|
{
|
|
long prev = invVMap[vm-1];
|
|
for (unsigned long i = 0; i < dimFloatArray; i++)
|
|
{
|
|
predResidual = m_quantFloatArray[v*stride+i] - m_quantFloatArray[prev*stride+i];
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
bstream.WriteIntASCII(predResidual);
|
|
}
|
|
else
|
|
{
|
|
EncodeIntACEGC(predResidual, ace, mModelValues, bModel0, bModel1, M);
|
|
}
|
|
#ifdef DEBUG_VERBOSE
|
|
printf("%i \t %i\n", vm*dimFloatArray+i, predResidual);
|
|
fprintf(g_fileDebugSC3DMCEnc, "%i \t %i\n", vm*dimFloatArray+i, predResidual);
|
|
#endif //DEBUG_VERBOSE
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (unsigned long i = 0; i < dimFloatArray; i++)
|
|
{
|
|
predResidual = m_quantFloatArray[v*stride+i];
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
bstream.WriteUIntASCII(predResidual);
|
|
}
|
|
else
|
|
{
|
|
EncodeUIntACEGC(predResidual, ace, mModelValues, bModel0, bModel1, M);
|
|
}
|
|
#ifdef DEBUG_VERBOSE
|
|
printf("%i \t %i\n", vm*dimFloatArray+i, predResidual);
|
|
fprintf(g_fileDebugSC3DMCEnc, "%i \t %i\n", vm*dimFloatArray+i, predResidual);
|
|
#endif //DEBUG_VERBOSE
|
|
}
|
|
}
|
|
}
|
|
if (m_streamType != O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
unsigned long encodedBytes = ace.stop_encoder();
|
|
for(unsigned long i = 0; i < encodedBytes; ++i)
|
|
{
|
|
bstream.WriteUChar8Bin(m_bufferAC[i]);
|
|
}
|
|
}
|
|
bstream.WriteUInt32(start, bstream.GetSize() - start, m_streamType);
|
|
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
unsigned long start = bstream.GetSize();
|
|
bstream.WriteUInt32ASCII(0);
|
|
const unsigned long size = m_predictors.GetSize();
|
|
for(unsigned long i = 0; i < size; ++i)
|
|
{
|
|
bstream.WriteUCharASCII((unsigned char) m_predictors[i]);
|
|
}
|
|
bstream.WriteUInt32ASCII(start, bstream.GetSize() - start);
|
|
}
|
|
#ifdef DEBUG_VERBOSE
|
|
fflush(g_fileDebugSC3DMCEnc);
|
|
#endif //DEBUG_VERBOSE
|
|
return O3DGC_OK;
|
|
}
|
|
|
|
template <class T>
|
|
O3DGCErrorCode SC3DMCEncoder<T>::EncodeIntArray(const long * const intArray,
|
|
unsigned long numIntArray,
|
|
unsigned long dimIntArray,
|
|
unsigned long stride,
|
|
const IndexedFaceSet<T> & ifs,
|
|
O3DGCSC3DMCPredictionMode predMode,
|
|
BinaryStream & bstream)
|
|
{
|
|
assert(dimIntArray < O3DGC_SC3DMC_MAX_DIM_ATTRIBUTES);
|
|
long predResidual, v, uPredResidual;
|
|
unsigned long nPred;
|
|
Arithmetic_Codec ace;
|
|
Static_Bit_Model bModel0;
|
|
Adaptive_Bit_Model bModel1;
|
|
|
|
const AdjacencyInfo & v2T = m_triangleListEncoder.GetVertexToTriangle();
|
|
const long * const vmap = m_triangleListEncoder.GetVMap();
|
|
const long * const invVMap = m_triangleListEncoder.GetInvVMap();
|
|
const T * const triangles = ifs.GetCoordIndex();
|
|
const long nvert = (long) numIntArray;
|
|
unsigned long start = bstream.GetSize();
|
|
unsigned char mask = predMode & 7;
|
|
const unsigned long M = O3DGC_SC3DMC_MAX_PREDICTION_SYMBOLS - 1;
|
|
unsigned long nSymbols = O3DGC_SC3DMC_MAX_PREDICTION_SYMBOLS;
|
|
unsigned long nPredictors = O3DGC_SC3DMC_MAX_PREDICTION_NEIGHBORS;
|
|
|
|
|
|
Adaptive_Data_Model mModelValues(M+2);
|
|
Adaptive_Data_Model mModelPreds(O3DGC_SC3DMC_MAX_PREDICTION_NEIGHBORS+1);
|
|
|
|
memset(m_freqSymbols, 0, sizeof(unsigned long) * O3DGC_SC3DMC_MAX_PREDICTION_SYMBOLS);
|
|
memset(m_freqPreds , 0, sizeof(unsigned long) * O3DGC_SC3DMC_MAX_PREDICTION_NEIGHBORS);
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
mask += (O3DGC_SC3DMC_BINARIZATION_ASCII & 7)<<4;
|
|
m_predictors.Allocate(nvert);
|
|
m_predictors.Clear();
|
|
}
|
|
else
|
|
{
|
|
mask += (O3DGC_SC3DMC_BINARIZATION_AC_EGC & 7)<<4;
|
|
const unsigned int NMAX = numIntArray * dimIntArray * 8 + 100;
|
|
if ( m_sizeBufferAC < NMAX )
|
|
{
|
|
delete [] m_bufferAC;
|
|
m_sizeBufferAC = NMAX;
|
|
m_bufferAC = new unsigned char [m_sizeBufferAC];
|
|
}
|
|
ace.set_buffer(NMAX, m_bufferAC);
|
|
ace.start_encoder();
|
|
ace.ExpGolombEncode(0, 0, bModel0, bModel1);
|
|
ace.ExpGolombEncode(M, 0, bModel0, bModel1);
|
|
}
|
|
bstream.WriteUInt32(0, m_streamType);
|
|
bstream.WriteUChar(mask, m_streamType);
|
|
|
|
#ifdef DEBUG_VERBOSE
|
|
printf("IntArray (%i, %i)\n", numIntArray, dimIntArray);
|
|
fprintf(g_fileDebugSC3DMCEnc, "IntArray (%i, %i)\n", numIntArray, dimIntArray);
|
|
#endif //DEBUG_VERBOSE
|
|
|
|
for (long vm=0; vm < nvert; ++vm)
|
|
{
|
|
nPred = 0;
|
|
v = invVMap[vm];
|
|
assert( v >= 0 && v < nvert);
|
|
if ( v2T.GetNumNeighbors(v) > 0 &&
|
|
predMode != O3DGC_SC3DMC_NO_PREDICTION)
|
|
{
|
|
int u0 = v2T.Begin(v);
|
|
int u1 = v2T.End(v);
|
|
for (long u = u0; u < u1; u++)
|
|
{
|
|
long ta = v2T.GetNeighbor(u);
|
|
for(long k = 0; k < 3; ++k)
|
|
{
|
|
long w = triangles[ta*3 + k];
|
|
if ( vmap[w] < vm )
|
|
{
|
|
SC3DMCTriplet id = {-1, -1, vmap[w]};
|
|
unsigned long p = Insert(id, nPred, m_neighbors);
|
|
if (p != 0xFFFFFFFF)
|
|
{
|
|
for (unsigned long i = 0; i < dimIntArray; i++)
|
|
{
|
|
m_neighbors[p].m_pred[i] = intArray[w*stride+i];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (nPred > 1)
|
|
{
|
|
// find best predictor
|
|
unsigned long bestPred = 0xFFFFFFFF;
|
|
double bestCost = O3DGC_MAX_DOUBLE;
|
|
double cost;
|
|
#ifdef DEBUG_VERBOSE1
|
|
printf("\t\t vm %i\n", vm);
|
|
fprintf(g_fileDebugSC3DMCEnc, "\t\t vm %i\n", vm);
|
|
#endif //DEBUG_VERBOSE
|
|
|
|
for (unsigned long p = 0; p < nPred; ++p)
|
|
{
|
|
#ifdef DEBUG_VERBOSE1
|
|
printf("\t\t pred a = %i b = %i c = %i \n", m_neighbors[p].m_id.m_a, m_neighbors[p].m_id.m_b, m_neighbors[p].m_id.m_c);
|
|
fprintf(g_fileDebugSC3DMCEnc, "\t\t pred a = %i b = %i c = %i \n", m_neighbors[p].m_id.m_a, m_neighbors[p].m_id.m_b, m_neighbors[p].m_id.m_c);
|
|
#endif //DEBUG_VERBOSE
|
|
cost = -log2((m_freqPreds[p]+1.0) / nPredictors );
|
|
for (unsigned long i = 0; i < dimIntArray; ++i)
|
|
{
|
|
#ifdef DEBUG_VERBOSE1
|
|
printf("\t\t\t %i\n", m_neighbors[p].m_pred[i]);
|
|
fprintf(g_fileDebugSC3DMCEnc, "\t\t\t %i\n", m_neighbors[p].m_pred[i]);
|
|
#endif //DEBUG_VERBOSE
|
|
|
|
predResidual = (long) IntToUInt(intArray[v*stride+i] - m_neighbors[p].m_pred[i]);
|
|
if (predResidual < (long) M)
|
|
{
|
|
cost += -log2((m_freqSymbols[predResidual]+1.0) / nSymbols );
|
|
}
|
|
else
|
|
{
|
|
cost += -log2((m_freqSymbols[M] + 1.0) / nSymbols ) + log2((double) (predResidual-M));
|
|
}
|
|
}
|
|
if (cost < bestCost)
|
|
{
|
|
bestCost = cost;
|
|
bestPred = p;
|
|
}
|
|
}
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
m_predictors.PushBack((unsigned char) bestPred);
|
|
}
|
|
else
|
|
{
|
|
ace.encode(bestPred, mModelPreds);
|
|
}
|
|
#ifdef DEBUG_VERBOSE1
|
|
printf("best (%i, %i, %i) \t pos %i\n", m_neighbors[bestPred].m_id.m_a, m_neighbors[bestPred].m_id.m_b, m_neighbors[bestPred].m_id.m_c, bestPred);
|
|
fprintf(g_fileDebugSC3DMCEnc, "best (%i, %i, %i) \t pos %i\n", m_neighbors[bestPred].m_id.m_a, m_neighbors[bestPred].m_id.m_b, m_neighbors[bestPred].m_id.m_c, bestPred);
|
|
#endif //DEBUG_VERBOSE
|
|
// use best predictor
|
|
for (unsigned long i = 0; i < dimIntArray; ++i)
|
|
{
|
|
predResidual = intArray[v*stride+i] - m_neighbors[bestPred].m_pred[i];
|
|
uPredResidual = IntToUInt(predResidual);
|
|
++m_freqSymbols[(uPredResidual < (long) M)? uPredResidual : M];
|
|
|
|
#ifdef DEBUG_VERBOSE
|
|
printf("%i \t %i \t [%i]\n", vm*dimIntArray+i, predResidual, m_neighbors[bestPred].m_pred[i]);
|
|
fprintf(g_fileDebugSC3DMCEnc, "%i \t %i \t [%i]\n", vm*dimIntArray+i, predResidual, m_neighbors[bestPred].m_pred[i]);
|
|
#endif //DEBUG_VERBOSE
|
|
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
bstream.WriteIntASCII(predResidual);
|
|
}
|
|
else
|
|
{
|
|
EncodeIntACEGC(predResidual, ace, mModelValues, bModel0, bModel1, M);
|
|
}
|
|
}
|
|
++m_freqPreds[bestPred];
|
|
nSymbols += dimIntArray;
|
|
++nPredictors;
|
|
}
|
|
else if ( vm > 0 && predMode != O3DGC_SC3DMC_NO_PREDICTION)
|
|
{
|
|
long prev = invVMap[vm-1];
|
|
for (unsigned long i = 0; i < dimIntArray; i++)
|
|
{
|
|
predResidual = intArray[v*stride+i] - intArray[prev*stride+i];
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
bstream.WriteIntASCII(predResidual);
|
|
}
|
|
else
|
|
{
|
|
EncodeIntACEGC(predResidual, ace, mModelValues, bModel0, bModel1, M);
|
|
}
|
|
#ifdef DEBUG_VERBOSE
|
|
printf("%i \t %i\n", vm*dimIntArray+i, predResidual);
|
|
fprintf(g_fileDebugSC3DMCEnc, "%i \t %i\n", vm*dimIntArray+i, predResidual);
|
|
#endif //DEBUG_VERBOSE
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (unsigned long i = 0; i < dimIntArray; i++)
|
|
{
|
|
predResidual = intArray[v*stride+i];
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
bstream.WriteUIntASCII(predResidual);
|
|
}
|
|
else
|
|
{
|
|
EncodeUIntACEGC(predResidual, ace, mModelValues, bModel0, bModel1, M);
|
|
}
|
|
#ifdef DEBUG_VERBOSE
|
|
printf("%i \t %i\n", vm*dimIntArray+i, predResidual);
|
|
fprintf(g_fileDebugSC3DMCEnc, "%i \t %i\n", vm*dimIntArray+i, predResidual);
|
|
#endif //DEBUG_VERBOSE
|
|
}
|
|
}
|
|
}
|
|
if (m_streamType != O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
unsigned long encodedBytes = ace.stop_encoder();
|
|
for(unsigned long i = 0; i < encodedBytes; ++i)
|
|
{
|
|
bstream.WriteUChar8Bin(m_bufferAC[i]);
|
|
}
|
|
}
|
|
bstream.WriteUInt32(start, bstream.GetSize() - start, m_streamType);
|
|
|
|
if (m_streamType == O3DGC_STREAM_TYPE_ASCII)
|
|
{
|
|
unsigned long start = bstream.GetSize();
|
|
bstream.WriteUInt32ASCII(0);
|
|
const unsigned long size = m_predictors.GetSize();
|
|
for(unsigned long i = 0; i < size; ++i)
|
|
{
|
|
bstream.WriteUCharASCII((unsigned char) m_predictors[i]);
|
|
}
|
|
bstream.WriteUInt32ASCII(start, bstream.GetSize() - start);
|
|
}
|
|
#ifdef DEBUG_VERBOSE
|
|
fflush(g_fileDebugSC3DMCEnc);
|
|
#endif //DEBUG_VERBOSE
|
|
return O3DGC_OK;
|
|
}
|
|
template <class T>
|
|
O3DGCErrorCode SC3DMCEncoder<T>::ProcessNormals(const IndexedFaceSet<T> & ifs)
|
|
{
|
|
const long nvert = (long) ifs.GetNNormal();
|
|
const unsigned long normalSize = ifs.GetNNormal() * 2;
|
|
if (m_normalsSize < normalSize)
|
|
{
|
|
delete [] m_normals;
|
|
m_normalsSize = normalSize;
|
|
m_normals = new Real [normalSize];
|
|
}
|
|
const AdjacencyInfo & v2T = m_triangleListEncoder.GetVertexToTriangle();
|
|
const long * const invVMap = m_triangleListEncoder.GetInvVMap();
|
|
const T * const triangles = ifs.GetCoordIndex();
|
|
const Real * const originalNormals = ifs.GetNormal();
|
|
Vec3<long> p1, p2, p3, n0, nt;
|
|
Vec3<Real> n1;
|
|
long na0 = 0, nb0 = 0;
|
|
Real rna0, rnb0, na1 = 0, nb1 = 0, norm0, norm1;
|
|
char ni0 = 0, ni1 = 0;
|
|
long a, b, c, v;
|
|
m_predictors.Clear();
|
|
for (long i=0; i < nvert; ++i)
|
|
{
|
|
v = invVMap[i];
|
|
n0.X() = 0;
|
|
n0.Y() = 0;
|
|
n0.Z() = 0;
|
|
int u0 = v2T.Begin(v);
|
|
int u1 = v2T.End(v);
|
|
for (long u = u0; u < u1; u++)
|
|
{
|
|
long ta = v2T.GetNeighbor(u);
|
|
a = triangles[ta*3 + 0];
|
|
b = triangles[ta*3 + 1];
|
|
c = triangles[ta*3 + 2];
|
|
p1.X() = m_quantFloatArray[3*a];
|
|
p1.Y() = m_quantFloatArray[3*a+1];
|
|
p1.Z() = m_quantFloatArray[3*a+2];
|
|
p2.X() = m_quantFloatArray[3*b];
|
|
p2.Y() = m_quantFloatArray[3*b+1];
|
|
p2.Z() = m_quantFloatArray[3*b+2];
|
|
p3.X() = m_quantFloatArray[3*c];
|
|
p3.Y() = m_quantFloatArray[3*c+1];
|
|
p3.Z() = m_quantFloatArray[3*c+2];
|
|
nt = (p2-p1)^(p3-p1);
|
|
n0 += nt;
|
|
}
|
|
norm0 = (Real) n0.GetNorm();
|
|
if (norm0 == 0.0)
|
|
{
|
|
norm0 = 1.0;
|
|
}
|
|
SphereToCube(n0.X(), n0.Y(), n0.Z(), na0, nb0, ni0);
|
|
rna0 = na0 / norm0;
|
|
rnb0 = nb0 / norm0;
|
|
|
|
n1.X() = originalNormals[3*v];
|
|
n1.Y() = originalNormals[3*v+1];
|
|
n1.Z() = originalNormals[3*v+2];
|
|
norm1 = (Real) n1.GetNorm();
|
|
if (norm1 != 0.0)
|
|
{
|
|
n1.X() /= norm1;
|
|
n1.Y() /= norm1;
|
|
n1.Z() /= norm1;
|
|
}
|
|
SphereToCube(n1.X(), n1.Y(), n1.Z(), na1, nb1, ni1);
|
|
m_predictors.PushBack(ni1 - ni0);
|
|
if ( (ni1 >> 1) != (ni0 >> 1) )
|
|
{
|
|
rna0 = (Real)0.0;
|
|
rnb0 = (Real)0.0;
|
|
}
|
|
m_normals[2*v] = na1 - rna0;
|
|
m_normals[2*v+1] = nb1 - rnb0;
|
|
|
|
#ifdef DEBUG_VERBOSE1
|
|
printf("n0 \t %i \t %i \t %i \t %i (%f, %f)\n", i, n0.X(), n0.Y(), n0.Z(), rna0, rnb0);
|
|
fprintf(g_fileDebugSC3DMCEnc,"n0 \t %i \t %i \t %i \t %i (%f, %f)\n", i, n0.X(), n0.Y(), n0.Z(), rna0, rnb0);
|
|
#endif //DEBUG_VERBOSE
|
|
|
|
#ifdef DEBUG_VERBOSE1
|
|
printf("normal \t %i \t %f \t %f \t %f \t (%i, %f, %f) \t (%f, %f)\n", i, n1.X(), n1.Y(), n1.Z(), ni1, na1, nb1, rna0, rnb0);
|
|
fprintf(g_fileDebugSC3DMCEnc, "normal \t %i \t %f \t %f \t %f \t (%i, %f, %f) \t (%f, %f)\n", i, n1.X(), n1.Y(), n1.Z(), ni1, na1, nb1, rna0, rnb0);
|
|
#endif //DEBUG_VERBOSE
|
|
|
|
}
|
|
return O3DGC_OK;
|
|
}
|
|
|
|
template <class T>
|
|
O3DGCErrorCode SC3DMCEncoder<T>::EncodePayload(const SC3DMCEncodeParams & params,
|
|
const IndexedFaceSet<T> & ifs,
|
|
BinaryStream & bstream)
|
|
{
|
|
#ifdef DEBUG_VERBOSE
|
|
g_fileDebugSC3DMCEnc = fopen("tfans_enc_main.txt", "w");
|
|
#endif //DEBUG_VERBOSE
|
|
|
|
// encode triangle list
|
|
m_triangleListEncoder.SetStreamType(params.GetStreamType());
|
|
m_stats.m_streamSizeCoordIndex = bstream.GetSize();
|
|
Timer timer;
|
|
timer.Tic();
|
|
m_triangleListEncoder.Encode(ifs.GetCoordIndex(), ifs.GetIndexBufferID(), ifs.GetNCoordIndex(), ifs.GetNCoord(), bstream);
|
|
timer.Toc();
|
|
m_stats.m_timeCoordIndex = timer.GetElapsedTime();
|
|
m_stats.m_streamSizeCoordIndex = bstream.GetSize() - m_stats.m_streamSizeCoordIndex;
|
|
|
|
// encode coord
|
|
m_stats.m_streamSizeCoord = bstream.GetSize();
|
|
timer.Tic();
|
|
if (ifs.GetNCoord() > 0)
|
|
{
|
|
EncodeFloatArray(ifs.GetCoord(), ifs.GetNCoord(), 3, 3, ifs.GetCoordMin(), ifs.GetCoordMax(),
|
|
params.GetCoordQuantBits(), ifs, params.GetCoordPredMode(), bstream);
|
|
}
|
|
timer.Toc();
|
|
m_stats.m_timeCoord = timer.GetElapsedTime();
|
|
m_stats.m_streamSizeCoord = bstream.GetSize() - m_stats.m_streamSizeCoord;
|
|
|
|
|
|
// encode Normal
|
|
m_stats.m_streamSizeNormal = bstream.GetSize();
|
|
timer.Tic();
|
|
if (ifs.GetNNormal() > 0)
|
|
{
|
|
if (params.GetNormalPredMode() == O3DGC_SC3DMC_SURF_NORMALS_PREDICTION)
|
|
{
|
|
ProcessNormals(ifs);
|
|
EncodeFloatArray(m_normals, ifs.GetNNormal(), 2, 2, ifs.GetNormalMin(), ifs.GetNormalMax(),
|
|
params.GetNormalQuantBits(), ifs, params.GetNormalPredMode(), bstream);
|
|
}
|
|
else
|
|
{
|
|
EncodeFloatArray(ifs.GetNormal(), ifs.GetNNormal(), 3, 3, ifs.GetNormalMin(), ifs.GetNormalMax(),
|
|
params.GetNormalQuantBits(), ifs, params.GetNormalPredMode(), bstream);
|
|
}
|
|
}
|
|
timer.Toc();
|
|
m_stats.m_timeNormal = timer.GetElapsedTime();
|
|
m_stats.m_streamSizeNormal = bstream.GetSize() - m_stats.m_streamSizeNormal;
|
|
|
|
|
|
// encode FloatAttribute
|
|
for(unsigned long a = 0; a < ifs.GetNumFloatAttributes(); ++a)
|
|
{
|
|
m_stats.m_streamSizeFloatAttribute[a] = bstream.GetSize();
|
|
timer.Tic();
|
|
EncodeFloatArray(ifs.GetFloatAttribute(a), ifs.GetNFloatAttribute(a),
|
|
ifs.GetFloatAttributeDim(a), ifs.GetFloatAttributeDim(a),
|
|
ifs.GetFloatAttributeMin(a), ifs.GetFloatAttributeMax(a),
|
|
params.GetFloatAttributeQuantBits(a), ifs,
|
|
params.GetFloatAttributePredMode(a), bstream);
|
|
timer.Toc();
|
|
m_stats.m_timeFloatAttribute[a] = timer.GetElapsedTime();
|
|
m_stats.m_streamSizeFloatAttribute[a] = bstream.GetSize() - m_stats.m_streamSizeFloatAttribute[a];
|
|
}
|
|
|
|
// encode IntAttribute
|
|
for(unsigned long a = 0; a < ifs.GetNumIntAttributes(); ++a)
|
|
{
|
|
m_stats.m_streamSizeIntAttribute[a] = bstream.GetSize();
|
|
timer.Tic();
|
|
EncodeIntArray(ifs.GetIntAttribute(a), ifs.GetNIntAttribute(a), ifs.GetIntAttributeDim(a),
|
|
ifs.GetIntAttributeDim(a), ifs, params.GetIntAttributePredMode(a), bstream);
|
|
timer.Toc();
|
|
m_stats.m_timeIntAttribute[a] = timer.GetElapsedTime();
|
|
m_stats.m_streamSizeIntAttribute[a] = bstream.GetSize() - m_stats.m_streamSizeIntAttribute[a];
|
|
}
|
|
#ifdef DEBUG_VERBOSE
|
|
fclose(g_fileDebugSC3DMCEnc);
|
|
#endif //DEBUG_VERBOSE
|
|
return O3DGC_OK;
|
|
}
|
|
} // namespace o3dgc
|
|
|
|
#pragma warning(pop)
|
|
|
|
#endif // O3DGC_SC3DMC_ENCODER_INL
|
|
|
|
|