62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
#ifndef CONVERTER_H
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#define CONVERTER_H
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#include <cstddef>
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#include <memory>
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#include "AL/al.h"
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#include "alcmain.h"
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#include "almalloc.h"
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#include "alnumeric.h"
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#include "alu.h"
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#include "devformat.h"
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#include "voice.h"
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struct SampleConverter {
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DevFmtType mSrcType{};
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DevFmtType mDstType{};
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ALuint mSrcTypeSize{};
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ALuint mDstTypeSize{};
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ALint mSrcPrepCount{};
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ALuint mFracOffset{};
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ALuint mIncrement{};
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InterpState mState{};
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ResamplerFunc mResample{};
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alignas(16) ALfloat mSrcSamples[BUFFERSIZE]{};
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alignas(16) ALfloat mDstSamples[BUFFERSIZE]{};
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struct ChanSamples {
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alignas(16) ALfloat PrevSamples[MAX_RESAMPLER_PADDING];
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};
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al::FlexArray<ChanSamples> mChan;
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SampleConverter(size_t numchans) : mChan{numchans} { }
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ALuint convert(const ALvoid **src, ALuint *srcframes, ALvoid *dst, ALuint dstframes);
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ALuint availableOut(ALuint srcframes) const;
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DEF_FAM_NEWDEL(SampleConverter, mChan)
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};
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using SampleConverterPtr = std::unique_ptr<SampleConverter>;
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SampleConverterPtr CreateSampleConverter(DevFmtType srcType, DevFmtType dstType, size_t numchans,
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ALuint srcRate, ALuint dstRate, Resampler resampler);
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struct ChannelConverter {
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DevFmtType mSrcType;
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DevFmtChannels mSrcChans;
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DevFmtChannels mDstChans;
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bool is_active() const noexcept { return mSrcChans != mDstChans; }
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void convert(const ALvoid *src, ALfloat *dst, ALuint frames) const;
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};
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#endif /* CONVERTER_H */
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