101 lines
3.5 KiB
C++
101 lines
3.5 KiB
C++
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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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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#include "util/array.h"
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#include "foundation/core/ptr.h"
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#include "io/binaryreader.h"
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#include "floatsCompression.h"
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#include "UnsignedIntUnpacking.h"
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namespace Resources
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{
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//------------------------------------------------------------------------
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template<typename T, typename ElemT>
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bool ReadPackedFloat(GPtr<IO::BinaryReader>& pReader, T& outData)
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{
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float minNumber = pReader->ReadFloat();
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float maxNumber = pReader->ReadFloat();
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unsigned int quantizationBitsCount = pReader->ReadUInt();
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Resources::FloatsCompression fc(minNumber, maxNumber, quantizationBitsCount);
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unsigned int valueCount = pReader->ReadUInt();
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unsigned int unpackingBitsCount = pReader->ReadUInt();
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Resources::UnsignedIntUnpacking uiu(valueCount, unpackingBitsCount);
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Util::Array<unsigned char>& dataBuffer = uiu.GetBuffer();
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pReader->ReadRawData( &(dataBuffer[0]), dataBuffer.Size() );
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int elemSize = sizeof(ElemT) / (sizeof(float));
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int elemCount = valueCount / elemSize;
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outData.Resize(elemCount, ElemT());
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float *pIterator = (float*)( &(outData[0]) );
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unsigned int tempValue = 0;
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bool result = true;
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for (unsigned int i = 0; i < valueCount; i++)
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{
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result = uiu.Unpack(&tempValue);
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result = fc.DecodeRL(tempValue, pIterator);
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if (!result)
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{
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return false;
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}
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pIterator++;
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}
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return true;
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}
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//------------------------------------------------------------------------------
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template<typename T, typename ElemT, typename IntType>
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bool ReadPackedInt(GPtr<IO::BinaryReader>& pReader, T& outData)
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{
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unsigned int valueCount = pReader->ReadUInt();
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unsigned int unpackingBitsCount = pReader->ReadUInt();
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Resources::UnsignedIntUnpacking uiu(valueCount, unpackingBitsCount);
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Util::Array<unsigned char>& dataBuffer = uiu.GetBuffer();
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pReader->ReadRawData( &(dataBuffer[0]), dataBuffer.Size() );
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int elemSize = sizeof(ElemT) / (sizeof(IntType));
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int elemCount = valueCount / elemSize;
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outData.Resize(elemCount, ElemT());
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ElemT *pIterator = (ElemT*)( &(outData[0]) );
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unsigned int tempValue = 0;
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bool result = true;
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for (unsigned int i = 0; i < valueCount; i++)
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{
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result = uiu.Unpack(&tempValue);
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if (!result)
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{
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return false;
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}
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*pIterator = (ElemT)tempValue;
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pIterator++;
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}
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return true;
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}
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}
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