| /* |
| 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_SC3DMC_ENCODER_INL |
| #define O3DGC_SC3DMC_ENCODER_INL |
| |
| |
| #include "o3dgcArithmeticCodec.h" |
| #include "o3dgcTimer.h" |
| #include "o3dgcVector.h" |
| #include "o3dgcBinaryStream.h" |
| #include "o3dgcCommon.h" |
| |
| //#define DEBUG_VERBOSE |
| |
| namespace o3dgc |
| { |
| #ifdef DEBUG_VERBOSE |
| FILE * g_fileDebugSC3DMCEnc = NULL; |
| #endif //DEBUG_VERBOSE |
| |
| template <class T> |
| O3DGCErrorCode SC3DMCEncoder<T>::Encode(const SC3DMCEncodeParams & params, |
| const IndexedFaceSet<T> & ifs, |
| BinaryStream & bstream) |
| { |
| // Encode header |
| unsigned long start = bstream.GetSize(); |
| EncodeHeader(params, ifs, bstream); |
| // Encode payload |
| EncodePayload(params, ifs, bstream); |
| bstream.WriteUInt32(m_posSize, bstream.GetSize() - start, m_streamType); |
| return O3DGC_OK; |
| } |
| template <class T> |
| O3DGCErrorCode SC3DMCEncoder<T>::EncodeHeader(const SC3DMCEncodeParams & params, |
| const IndexedFaceSet<T> & ifs, |
| BinaryStream & bstream) |
| { |
| m_streamType = params.GetStreamType(); |
| bstream.WriteUInt32(O3DGC_SC3DMC_START_CODE, m_streamType); |
| m_posSize = bstream.GetSize(); |
| bstream.WriteUInt32(0, m_streamType); // to be filled later |
| |
| bstream.WriteUChar(O3DGC_SC3DMC_ENCODE_MODE_TFAN, m_streamType); |
| bstream.WriteFloat32((float)ifs.GetCreaseAngle(), m_streamType); |
| |
| unsigned char mask = 0; |
| bool markerBit0 = false; |
| bool markerBit1 = false; |
| bool markerBit2 = false; |
| bool markerBit3 = false; |
| |
| mask += (ifs.GetCCW() ); |
| mask += (ifs.GetSolid() << 1); |
| mask += (ifs.GetConvex() << 2); |
| mask += (ifs.GetIsTriangularMesh() << 3); |
| mask += (markerBit0 << 4); |
| mask += (markerBit1 << 5); |
| mask += (markerBit2 << 6); |
| mask += (markerBit3 << 7); |
| |
| bstream.WriteUChar(mask, m_streamType); |
| |
| bstream.WriteUInt32(ifs.GetNCoord(), m_streamType); |
| bstream.WriteUInt32(ifs.GetNNormal(), m_streamType); |
| bstream.WriteUInt32(ifs.GetNumFloatAttributes(), m_streamType); |
| bstream.WriteUInt32(ifs.GetNumIntAttributes(), m_streamType); |
| |
| if (ifs.GetNCoord() > 0) |
| { |
| bstream.WriteUInt32(ifs.GetNCoordIndex(), m_streamType); |
| for(int j=0 ; j<3 ; ++j) |
| { |
| bstream.WriteFloat32((float) ifs.GetCoordMin(j), m_streamType); |
| bstream.WriteFloat32((float) ifs.GetCoordMax(j), m_streamType); |
| } |
| bstream.WriteUChar((unsigned char) params.GetCoordQuantBits(), m_streamType); |
| } |
| if (ifs.GetNNormal() > 0) |
| { |
| bstream.WriteUInt32(0, m_streamType); |
| for(int j=0 ; j<3 ; ++j) |
| { |
| bstream.WriteFloat32((float) ifs.GetNormalMin(j), m_streamType); |
| bstream.WriteFloat32((float) ifs.GetNormalMax(j), m_streamType); |
| } |
| bstream.WriteUChar(true, m_streamType); //(unsigned char) ifs.GetNormalPerVertex() |
| bstream.WriteUChar((unsigned char) params.GetNormalQuantBits(), m_streamType); |
| } |
| for(unsigned long a = 0; a < ifs.GetNumFloatAttributes(); ++a) |
| { |
| bstream.WriteUInt32(ifs.GetNFloatAttribute(a), m_streamType); |
| if (ifs.GetNFloatAttribute(a) > 0) |
| { |
| assert(ifs.GetFloatAttributeDim(a) < (unsigned long) O3DGC_MAX_UCHAR8); |
| bstream.WriteUInt32(0, m_streamType); |
| unsigned char d = (unsigned char) ifs.GetFloatAttributeDim(a); |
| bstream.WriteUChar(d, m_streamType); |
| for(unsigned char j = 0 ; j < d ; ++j) |
| { |
| bstream.WriteFloat32((float) ifs.GetFloatAttributeMin(a, j), m_streamType); |
| bstream.WriteFloat32((float) ifs.GetFloatAttributeMax(a, j), m_streamType); |
| } |
| bstream.WriteUChar(true, m_streamType); //(unsigned char) ifs.GetFloatAttributePerVertex(a) |
| bstream.WriteUChar((unsigned char) ifs.GetFloatAttributeType(a), m_streamType); |
| bstream.WriteUChar((unsigned char) params.GetFloatAttributeQuantBits(a), m_streamType); |
| } |
| } |
| for(unsigned long a = 0; a < ifs.GetNumIntAttributes(); ++a) |
| { |
| bstream.WriteUInt32(ifs.GetNIntAttribute(a), m_streamType); |
| if (ifs.GetNIntAttribute(a) > 0) |
| { |
| assert(ifs.GetFloatAttributeDim(a) < (unsigned long) O3DGC_MAX_UCHAR8); |
| bstream.WriteUInt32(0, m_streamType); |
| bstream.WriteUChar((unsigned char) ifs.GetIntAttributeDim(a), m_streamType); |
| bstream.WriteUChar(true, m_streamType); // (unsigned char) ifs.GetIntAttributePerVertex(a) |
| bstream.WriteUChar((unsigned char) ifs.GetIntAttributeType(a), m_streamType); |
| } |
| } |
| return O3DGC_OK; |
| } |
| template <class T> |
| O3DGCErrorCode SC3DMCEncoder<T>::QuantizeFloatArray(const Real * const floatArray, |
| unsigned long numFloatArray, |
| unsigned long dimFloatArray, |
| unsigned long stride, |
| const Real * const minFloatArray, |
| const Real * const maxFloatArray, |
| unsigned long nQBits) |
| { |
| const unsigned long size = numFloatArray * dimFloatArray; |
| Real delta[O3DGC_SC3DMC_MAX_DIM_ATTRIBUTES]; |
| Real r; |
| for(unsigned long d = 0; d < dimFloatArray; d++) |
| { |
| r = maxFloatArray[d] - minFloatArray[d]; |
| if (r > 0.0f) |
| { |
| delta[d] = (float)((1 << nQBits) - 1) / r; |
| } |
| else |
| { |
| delta[d] = 1.0f; |
| } |
| } |
| if (m_quantFloatArraySize < size) |
| { |
| delete [] m_quantFloatArray; |
| m_quantFloatArraySize = size; |
| m_quantFloatArray = new long [size]; |
| } |
| for(unsigned long v = 0; v < numFloatArray; ++v) |
| { |
| for(unsigned long d = 0; d < dimFloatArray; ++d) |
| { |
| m_quantFloatArray[v * stride + d] = (long)((floatArray[v * stride + d]-minFloatArray[d]) * delta[d] + 0.5f); |
| } |
| } |
| return O3DGC_OK; |
| } |
| template <class T> |
| O3DGCErrorCode SC3DMCEncoder<T>::EncodeFloatArray(const Real * const floatArray, |
| unsigned long numFloatArray, |
| unsigned long dimFloatArray, |
| unsigned long stride, |
| const Real * const minFloatArray, |
| const Real * const maxFloatArray, |
| unsigned long nQBits, |
| const IndexedFaceSet<T> & ifs, |
| O3DGCSC3DMCPredictionMode predMode, |
| BinaryStream & bstream) |
| { |
| assert(dimFloatArray < 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) numFloatArray; |
| 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 = numFloatArray * dimFloatArray * 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("FloatArray (%i, %i)\n", numFloatArray, dimFloatArray); |
| fprintf(g_fileDebugSC3DMCEnc, "FloatArray (%i, %i)\n", numFloatArray, dimFloatArray); |
| #endif //DEBUG_VERBOSE |
| |
| if (predMode == O3DGC_SC3DMC_SURF_NORMALS_PREDICTION) |
| { |
| const Real minFloatArray[2] = {(Real)(-2.0),(Real)(-2.0)}; |
| const Real maxFloatArray[2] = {(Real)(2.0),(Real)(2.0)}; |
| if (m_streamType == O3DGC_STREAM_TYPE_ASCII) |
| { |
| for(unsigned long i = 0; i < numFloatArray; ++i) |
| { |
| bstream.WriteIntASCII(m_predictors[i]); |
| } |
| } |
| else |
| { |
| Adaptive_Data_Model dModel(12); |
| for(unsigned long i = 0; i < numFloatArray; ++i) |
| { |
| ace.encode(IntToUInt(m_predictors[i]), dModel); |
| } |
| } |
| QuantizeFloatArray(floatArray, numFloatArray, dimFloatArray, stride, minFloatArray, maxFloatArray, nQBits+1); |
| } |
| else |
| { |
| QuantizeFloatArray(floatArray, numFloatArray, dimFloatArray, stride, minFloatArray, maxFloatArray, nQBits); |
| } |
| |
| 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); |
| if ( predMode == O3DGC_SC3DMC_PARALLELOGRAM_PREDICTION ) |
| { |
| long a,b; |
| if ((long) triangles[ta*3] == v) |
| { |
| a = triangles[ta*3 + 1]; |
| b = triangles[ta*3 + 2]; |
| } |
| else if ((long) triangles[ta*3 + 1] == v) |
| { |
| a = triangles[ta*3 + 0]; |
| b = triangles[ta*3 + 2]; |
| } |
| else |
| { |
| a = triangles[ta*3 + 0]; |
| b = triangles[ta*3 + 1]; |
| } |
| if ( vmap[a] < vm && vmap[b] < vm) |
| { |
| int u0 = v2T.Begin(a); |
| int u1 = v2T.End(a); |
| for (long u = u0; u < u1; u++) |
| { |
| long tb = v2T.GetNeighbor(u); |
| long c = -1; |
| bool foundB = false; |
| for(long k = 0; k < 3; ++k) |
| { |
| long x = triangles[tb*3 + k]; |
| if (x == b) |
| { |
| foundB = true; |
| } |
| if (vmap[x] < vm && x != a && x != b) |
| { |
| c = x; |
| } |
| } |
| if (c != -1 && foundB) |
| { |
| SC3DMCTriplet id = {min(vmap[a], vmap[b]), max(vmap[a], vmap[b]), -vmap[c]-1}; |
| unsigned long p = Insert(id, nPred, m_neighbors); |
| if (p != 0xFFFFFFFF) |
| { |
| for (unsigned long i = 0; i < dimFloatArray; i++) |
| { |
| m_neighbors[p].m_pred[i] = m_quantFloatArray[a*stride+i] + |
| m_quantFloatArray[b*stride+i] - |
| m_quantFloatArray[c*stride+i]; |
| } |
| } |
| } |
| } |
| } |
| } |
| if ( predMode == O3DGC_SC3DMC_SURF_NORMALS_PREDICTION || |
| predMode == O3DGC_SC3DMC_PARALLELOGRAM_PREDICTION || |
| predMode == O3DGC_SC3DMC_DIFFERENTIAL_PREDICTION ) |
| { |
| 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 < dimFloatArray; i++) |
| { |
| m_neighbors[p].m_pred[i] = m_quantFloatArray[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 < dimFloatArray; ++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(m_quantFloatArray[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 < dimFloatArray; ++i) |
| { |
| predResidual = m_quantFloatArray[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*dimFloatArray+i, predResidual, m_neighbors[bestPred].m_pred[i]); |
| fprintf(g_fileDebugSC3DMCEnc, "%i \t %i \t [%i]\n", vm*dimFloatArray+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 += 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; |
| } |
| } |
| #endif // O3DGC_SC3DMC_ENCODER_INL |
| |
| |
