Alc/converter.h

   1 #ifndef CONVERTER_H
   2 #define CONVERTER_H
   3
   4 #include "alMain.h"
   5 #include "alu.h"
   6
   7 #ifdef __cpluspluc
   8 extern "C" {
   9 #endif
  10
  11 typedef struct SampleConverter {
  12     enum DevFmtType mSrcType;
  13     enum DevFmtType mDstType;
  14     ALsizei mNumChannels;
  15     ALsizei mSrcTypeSize;
  16     ALsizei mDstTypeSize;
  17
  18     ALint mSrcPrepCount;
  19
  20     ALsizei mFracOffset;
  21     ALsizei mIncrement;
  22     InterpState mState;
  23     ResamplerFunc mResample;
  24
  25     alignas(16) ALfloat mSrcSamples[BUFFERSIZE];
  26     alignas(16) ALfloat mDstSamples[BUFFERSIZE];
  27
  28     struct {
  29         alignas(16) ALfloat mPrevSamples[MAX_PRE_SAMPLES+MAX_POST_SAMPLES];
  30     } Chan[];
  31 } SampleConverter;
  32
  33 SampleConverter *CreateSampleConverter(enum DevFmtType srcType, enum DevFmtType dstType, ALsizei numchans, ALsizei srcRate, ALsizei dstRate);
  34 void DestroySampleConverter(SampleConverter **converter);
  35
  36 ALsizei SampleConverterInput(SampleConverter *converter, const ALvoid **src, ALsizei *srcframes, ALvoid *dst, ALsizei dstframes);
  37 ALsizei SampleConverterAvailableOut(SampleConverter *converter, ALsizei srcframes);
  38
  39
  40 typedef struct ChannelConverter {
  41     enum DevFmtType mSrcType;
  42     enum DevFmtChannels mSrcChans;
  43     enum DevFmtChannels mDstChans;
  44 } ChannelConverter;
  45
  46 ChannelConverter *CreateChannelConverter(enum DevFmtType srcType, enum DevFmtChannels srcChans, enum DevFmtChannels dstChans);
  47 void DestroyChannelConverter(ChannelConverter **converter);
  48
  49 void ChannelConverterInput(ChannelConverter *converter, const ALvoid *src, ALfloat *dst, ALsizei frames);
  50
  51 #ifdef __cpluspluc
  52 }
  53 #endif
  54
  55 #endif /* CONVERTER_H */