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      1 /*
      2  * Copyright (c) 2011-2015, Intel Corporation
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without modification,
      6  * are permitted provided that the following conditions are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright notice, this
      9  * list of conditions and the following disclaimer.
     10  *
     11  * 2. Redistributions in binary form must reproduce the above copyright notice,
     12  * this list of conditions and the following disclaimer in the documentation and/or
     13  * other materials provided with the distribution.
     14  *
     15  * 3. Neither the name of the copyright holder nor the names of its contributors
     16  * may be used to endorse or promote products derived from this software without
     17  * specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
     23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     26  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 #include "LinearParameterAdaptation.h"
     31 
     32 #define base CParameterAdaptation
     33 
     34 using std::string;
     35 
     36 CLinearParameterAdaptation::CLinearParameterAdaptation() : base("Linear")
     37 {
     38 }
     39 
     40 CLinearParameterAdaptation::CLinearParameterAdaptation(const string &strType) : base(strType)
     41 {
     42 }
     43 
     44 // Element properties
     45 void CLinearParameterAdaptation::showProperties(string &strResult) const
     46 {
     47     base::showProperties(strResult);
     48 
     49     // SlopeNumerator
     50     strResult += " - SlopeNumerator: ";
     51     strResult += std::to_string(_dSlopeNumerator);
     52     strResult += "\n";
     53 
     54     // SlopeDenominator
     55     strResult += " - SlopeDenominator: ";
     56     strResult += std::to_string(_dSlopeDenominator);
     57     strResult += "\n";
     58 }
     59 
     60 // From IXmlSink
     61 bool CLinearParameterAdaptation::fromXml(const CXmlElement &xmlElement,
     62                                          CXmlSerializingContext &serializingContext)
     63 {
     64     // Get SlopeNumerator
     65     xmlElement.getAttribute("SlopeNumerator", _dSlopeNumerator);
     66 
     67     // Get SlopeDenominator
     68     if (xmlElement.getAttribute("SlopeDenominator", _dSlopeDenominator) &&
     69         (_dSlopeDenominator == 0)) {
     70 
     71         // Avoid by 0 division errors
     72         serializingContext.setError("SlopeDenominator attribute can't be 0 on element" +
     73                                     xmlElement.getPath());
     74         return false;
     75     }
     76 
     77     // Base
     78     return base::fromXml(xmlElement, serializingContext);
     79 }
     80 
     81 // Conversions
     82 int64_t CLinearParameterAdaptation::fromUserValue(double dValue) const
     83 {
     84     return base::fromUserValue(dValue * _dSlopeNumerator / _dSlopeDenominator);
     85 }
     86 
     87 double CLinearParameterAdaptation::toUserValue(int64_t iValue) const
     88 {
     89     return base::toUserValue(iValue) * _dSlopeDenominator / _dSlopeNumerator;
     90 }
     91