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assimp/contrib/Open3DGC/o3dgcSC3DMCEncoder.inl

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[+] Added Open3DGC codec from KhronosGroup repository.
2016-08-03 00:34:54 +00:00
/*
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
clean all warnings for vs-2019
2020-03-08 20:24:01 +00:00
#pragma warning(push)
#pragma warning(disable : 4456)
[+] Added Open3DGC codec from KhronosGroup repository.
2016-08-03 00:34:54 +00:00
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)
{
clean all warnings for vs-2019
2020-03-08 20:24:01 +00:00
const Real curMinFloatArray[2] = {(Real)(-2.0),(Real)(-2.0)};
const Real curMaxFloatArray[2] = {(Real)(2.0),(Real)(2.0)};
[+] Added Open3DGC codec from KhronosGroup repository.
2016-08-03 00:34:54 +00:00
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);
}
}
clean all warnings for vs-2019
2020-03-08 20:24:01 +00:00
QuantizeFloatArray(floatArray, numFloatArray, dimFloatArray, stride, curMinFloatArray, curMaxFloatArray, nQBits + 1);
[+] Added Open3DGC codec from KhronosGroup repository.
2016-08-03 00:34:54 +00:00
}
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;
Open3DGC: Fix some uninitialized variable warnings
2017-09-26 15:33:00 +00:00
long na0 = 0, nb0 = 0;
Real rna0, rnb0, na1 = 0, nb1 = 0, norm0, norm1;
[+] Added Open3DGC codec from KhronosGroup repository.
2016-08-03 00:34:54 +00:00
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;
}
clean all warnings for vs-2019
2020-03-08 20:24:01 +00:00
} // namespace o3dgc
#pragma warning(pop)
[+] Added Open3DGC codec from KhronosGroup repository.
2016-08-03 00:34:54 +00:00
#endif // O3DGC_SC3DMC_ENCODER_INL