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Diffstat (limited to 'libs/assimp/contrib/Open3DGC/o3dgcDynamicVectorDecoder.cpp')
| -rw-r--r-- | libs/assimp/contrib/Open3DGC/o3dgcDynamicVectorDecoder.cpp | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/libs/assimp/contrib/Open3DGC/o3dgcDynamicVectorDecoder.cpp b/libs/assimp/contrib/Open3DGC/o3dgcDynamicVectorDecoder.cpp deleted file mode 100644 index b92452e..0000000 --- a/libs/assimp/contrib/Open3DGC/o3dgcDynamicVectorDecoder.cpp +++ /dev/null @@ -1,278 +0,0 @@ -/* -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. -*/ -#include "o3dgcDynamicVectorDecoder.h" -#include "o3dgcArithmeticCodec.h" - - -//#define DEBUG_VERBOSE - -namespace o3dgc -{ -#ifdef DEBUG_VERBOSE - FILE * g_fileDebugDVCDec = NULL; -#endif //DEBUG_VERBOSE - - O3DGCErrorCode IUpdate(long * const data, const long size) - { - assert(size > 1); - const long size1 = size - 1; - long p = 2; - data[0] -= data[1] >> 1; - while(p < size1) - { - data[p] -= (data[p-1] + data[p+1] + 2) >> 2; - p += 2; - } - if ( p == size1) - { - data[p] -= data[p-1]>>1; - } - return O3DGC_OK; - } - O3DGCErrorCode IPredict(long * const data, const long size) - { - assert(size > 1); - const long size1 = size - 1; - long p = 1; - while(p < size1) - { - data[p] += (data[p-1] + data[p+1] + 1) >> 1; - p += 2; - } - if ( p == size1) - { - data[p] += data[p-1]; - } - return O3DGC_OK; - } - O3DGCErrorCode Merge(long * const data, const long size) - { - assert(size > 1); - const long h = (size >> 1) + (size & 1); - long a = h-1; - long b = h; - while (a > 0) - { - for (long i = a; i < b; i += 2) - { - swap(data[i], data[i+1]); - } - --a; - ++b; - } - return O3DGC_OK; - } - inline O3DGCErrorCode ITransform(long * const data, const unsigned long size) - { - unsigned long n = size; - unsigned long even = 0; - unsigned long k = 0; - even += ((n&1) << k++); - while(n > 1) - { - n = (n >> 1) + (n & 1); - even += ((n&1) << k++); - } - for(long i = k-2; i >= 0; --i) - { - n = (n << 1) - ((even>>i) & 1); - Merge (data, n); - IUpdate (data, n); - IPredict(data, n); - } - return O3DGC_OK; - } - DynamicVectorDecoder::DynamicVectorDecoder(void) - { - m_streamSize = 0; - m_maxNumVectors = 0; - m_numVectors = 0; - m_dimVectors = 0; - m_quantVectors = 0; - m_iterator = 0; - m_streamType = O3DGC_STREAM_TYPE_UNKOWN; - } - DynamicVectorDecoder::~DynamicVectorDecoder() - { - delete [] m_quantVectors; - } - O3DGCErrorCode DynamicVectorDecoder::DecodeHeader(DynamicVector & dynamicVector, - const BinaryStream & bstream) - { - unsigned long iterator0 = m_iterator; - unsigned long start_code = bstream.ReadUInt32(m_iterator, O3DGC_STREAM_TYPE_BINARY); - if (start_code != O3DGC_DV_START_CODE) - { - m_iterator = iterator0; - start_code = bstream.ReadUInt32(m_iterator, O3DGC_STREAM_TYPE_ASCII); - if (start_code != O3DGC_DV_START_CODE) - { - return O3DGC_ERROR_CORRUPTED_STREAM; - } - else - { - m_streamType = O3DGC_STREAM_TYPE_ASCII; - } - } - else - { - m_streamType = O3DGC_STREAM_TYPE_BINARY; - } - m_streamSize = bstream.ReadUInt32(m_iterator, m_streamType); - m_params.SetEncodeMode( (O3DGCDVEncodingMode) bstream.ReadUChar(m_iterator, m_streamType)); - dynamicVector.SetNVector ( bstream.ReadUInt32(m_iterator, m_streamType) ); - - if (dynamicVector.GetNVector() > 0) - { - dynamicVector.SetDimVector( bstream.ReadUInt32(m_iterator, m_streamType) ); - m_params.SetQuantBits(bstream.ReadUChar(m_iterator, m_streamType)); - } - return O3DGC_OK; - } - O3DGCErrorCode DynamicVectorDecoder::DecodePlayload(DynamicVector & dynamicVector, - const BinaryStream & bstream) - { - O3DGCErrorCode ret = O3DGC_OK; -#ifdef DEBUG_VERBOSE - g_fileDebugDVCDec = fopen("dv_dec.txt", "w"); -#endif //DEBUG_VERBOSE - unsigned long start = m_iterator; - unsigned long streamSize = bstream.ReadUInt32(m_iterator, m_streamType); // bitsream size - - const unsigned long dim = dynamicVector.GetDimVector(); - const unsigned long num = dynamicVector.GetNVector(); - const unsigned long size = dim * num; - for(unsigned long j=0 ; j < dynamicVector.GetDimVector() ; ++j) - { - dynamicVector.SetMin(j, (Real) bstream.ReadFloat32(m_iterator, m_streamType)); - dynamicVector.SetMax(j, (Real) bstream.ReadFloat32(m_iterator, m_streamType)); - } - Arithmetic_Codec acd; - Static_Bit_Model bModel0; - Adaptive_Bit_Model bModel1; - unsigned char * buffer = 0; - streamSize -= (m_iterator - start); - unsigned int exp_k = 0; - unsigned int M = 0; - if (m_streamType == O3DGC_STREAM_TYPE_BINARY) - { - bstream.GetBuffer(m_iterator, buffer); - m_iterator += streamSize; - acd.set_buffer(streamSize, buffer); - acd.start_decoder(); - exp_k = acd.ExpGolombDecode(0, bModel0, bModel1); - M = acd.ExpGolombDecode(0, bModel0, bModel1); - } - Adaptive_Data_Model mModelValues(M+2); - - if (m_maxNumVectors < size) - { - delete [] m_quantVectors; - m_maxNumVectors = size; - m_quantVectors = new long [size]; - } - if (m_streamType == O3DGC_STREAM_TYPE_ASCII) - { - for(unsigned long v = 0; v < num; ++v) - { - for(unsigned long d = 0; d < dim; ++d) - { - m_quantVectors[d * num + v] = bstream.ReadIntASCII(m_iterator); - } - } - } - else - { - for(unsigned long v = 0; v < num; ++v) - { - for(unsigned long d = 0; d < dim; ++d) - { - m_quantVectors[d * num + v] = DecodeIntACEGC(acd, mModelValues, bModel0, bModel1, exp_k, M); - } - } - } - #ifdef DEBUG_VERBOSE - printf("IntArray (%i, %i)\n", num, dim); - fprintf(g_fileDebugDVCDec, "IntArray (%i, %i)\n", num, dim); - for(unsigned long v = 0; v < num; ++v) - { - for(unsigned long d = 0; d < dim; ++d) - { - printf("%i\t %i \t %i\n", d * num + v, m_quantVectors[d * num + v], IntToUInt(m_quantVectors[d * num + v])); - fprintf(g_fileDebugDVCDec, "%i\t %i \t %i\n", d * num + v, m_quantVectors[d * num + v], IntToUInt(m_quantVectors[d * num + v])); - } - } - fflush(g_fileDebugDVCDec); - #endif //DEBUG_VERBOSE - for(unsigned long d = 0; d < dim; ++d) - { - ITransform(m_quantVectors + d * num, num); - } - IQuantize(dynamicVector.GetVectors(), - num, - dim, - dynamicVector.GetStride(), - dynamicVector.GetMin(), - dynamicVector.GetMax(), - m_params.GetQuantBits()); - -#ifdef DEBUG_VERBOSE - fclose(g_fileDebugDVCDec); -#endif //DEBUG_VERBOSE - return ret; - } - O3DGCErrorCode DynamicVectorDecoder::IQuantize(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 r; - if (m_maxNumVectors < size) - { - delete [] m_quantVectors; - m_maxNumVectors = size; - m_quantVectors = new long [m_maxNumVectors]; - } - Real idelta; - for(unsigned long d = 0; d < dimFloatArray; ++d) - { - r = maxFloatArray[d] - minFloatArray[d]; - if (r > 0.0f) - { - idelta = (float)(r) / ((1 << nQBits) - 1); - } - else - { - idelta = 1.0f; - } - for(unsigned long v = 0; v < numFloatArray; ++v) - { - floatArray[v * stride + d] = m_quantVectors[v + d * numFloatArray] * idelta + minFloatArray[d]; - } - } - return O3DGC_OK; - } -} |