Move some more sources to core

1 files changed, 59 insertions, 0 deletions

diff --git a/core/converter.h b/core/converter.h
new file mode 100644
index 00000000..2d22ae38
--- /dev/null
+++ b/core/converter.h
@@ -0,0 +1,59 @@
+#ifndef CORE_CONVERTER_H
+#define CORE_CONVERTER_H
+
+#include <cstddef>
+#include <memory>
+
+#include "almalloc.h"
+#include "devformat.h"
+#include "mixer/defs.h"
+
+using uint = unsigned int;
+
+
+struct SampleConverter {
+    DevFmtType mSrcType{};
+    DevFmtType mDstType{};
+    uint mSrcTypeSize{};
+    uint mDstTypeSize{};
+
+    int mSrcPrepCount{};
+
+    uint mFracOffset{};
+    uint mIncrement{};
+    InterpState mState{};
+    ResamplerFunc mResample{};
+
+    alignas(16) float mSrcSamples[BufferLineSize]{};
+    alignas(16) float mDstSamples[BufferLineSize]{};
+
+    struct ChanSamples {
+        alignas(16) float PrevSamples[MaxResamplerPadding];
+    };
+    al::FlexArray<ChanSamples> mChan;
+
+    SampleConverter(size_t numchans) : mChan{numchans} { }
+
+    uint convert(const void **src, uint *srcframes, void *dst, uint dstframes);
+    uint availableOut(uint srcframes) const;
+
+    DEF_FAM_NEWDEL(SampleConverter, mChan)
+};
+using SampleConverterPtr = std::unique_ptr<SampleConverter>;
+
+SampleConverterPtr CreateSampleConverter(DevFmtType srcType, DevFmtType dstType, size_t numchans,
+    uint srcRate, uint dstRate, Resampler resampler);
+
+
+struct ChannelConverter {
+    DevFmtType mSrcType{};
+    uint mSrcStep{};
+    uint mChanMask{};
+    DevFmtChannels mDstChans{};
+
+    bool is_active() const noexcept { return mChanMask != 0; }
+
+    void convert(const void *src, float *dst, uint frames) const;
+};
+
+#endif /* CORE_CONVERTER_H */