108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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SampleBlock.cpp
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**********************************************************************/
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#include "InconsistencyException.h"
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#include "SampleBlock.h"
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#include "SampleFormat.h"
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#include <wx/defs.h>
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static SampleBlockFactoryFactory& installedFactory()
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{
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static SampleBlockFactoryFactory theFactory;
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return theFactory;
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}
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SampleBlockFactoryFactory SampleBlockFactory::RegisterFactoryFactory(
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SampleBlockFactoryFactory newFactory )
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{
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auto &theFactory = installedFactory();
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auto result = std::move( theFactory );
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theFactory = std::move( newFactory );
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return result;
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}
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SampleBlockFactoryPtr SampleBlockFactory::New( AudacityProject &project )
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{
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auto &factory = installedFactory();
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if ( ! factory )
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THROW_INCONSISTENCY_EXCEPTION;
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return factory( project );
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}
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SampleBlockFactory::~SampleBlockFactory() = default;
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SampleBlockPtr SampleBlockFactory::Create(constSamplePtr src,
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size_t numsamples,
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sampleFormat srcformat)
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{
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auto result = DoCreate(src, numsamples, srcformat);
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if (!result)
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THROW_INCONSISTENCY_EXCEPTION;
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return result;
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}
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SampleBlockPtr SampleBlockFactory::CreateSilent(
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size_t numsamples,
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sampleFormat srcformat)
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{
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auto result = DoCreateSilent(numsamples, srcformat);
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if (!result)
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THROW_INCONSISTENCY_EXCEPTION;
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return result;
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}
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SampleBlockPtr SampleBlockFactory::CreateFromXML(
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sampleFormat srcformat,
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const wxChar **attrs)
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{
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auto result = DoCreateFromXML(srcformat, attrs);
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if (!result)
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THROW_INCONSISTENCY_EXCEPTION;
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return result;
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}
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SampleBlock::~SampleBlock() = default;
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size_t SampleBlock::GetSamples(samplePtr dest,
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sampleFormat destformat,
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size_t sampleoffset,
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size_t numsamples, bool mayThrow)
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{
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try{ return DoGetSamples(dest, destformat, sampleoffset, numsamples); }
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catch( ... ) {
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if( mayThrow )
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throw;
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ClearSamples( dest, destformat, 0, numsamples );
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return 0;
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}
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}
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MinMaxRMS SampleBlock::GetMinMaxRMS(
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size_t start, size_t len, bool mayThrow)
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{
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try{ return DoGetMinMaxRMS(start, len); }
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catch( ... ) {
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if( mayThrow )
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throw;
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return {};
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}
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}
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MinMaxRMS SampleBlock::GetMinMaxRMS(bool mayThrow) const
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{
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try{ return DoGetMinMaxRMS(); }
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catch( ... ) {
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if( mayThrow )
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throw;
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return {};
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}
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}
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