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