#pragma once

//ruby-specific header to provide mingw-friendly xaudio2 interfaces

//64-bit GCC fix
#define GUID_EXT EXTERN_C
#define GUID_SECT

#include <audioclient.h>
#include <basetyps.h>

#define DEFINE_GUID_X(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) GUID_EXT const GUID n GUID_SECT = {l, w1, w2, {b1, b2, b3, b4, b5, b6, b7, b8}}
#define DEFINE_CLSID_X(className, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
  DEFINE_GUID_X(CLSID_##className, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8)
#define DEFINE_IID_X(interfaceName, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
  DEFINE_GUID_X(IID_##interfaceName, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8)
#define X2DEFAULT(x) = x

DEFINE_CLSID_X(XAudio2, e21a7345, eb21, 468e, be, 50, 80, 4d, b9, 7c, f7, 08);
DEFINE_CLSID_X(XAudio2_Debug, f7a76c21, 53d4, 46bb, ac, 53, 8b, 45, 9c, ae, 46, bd);
DEFINE_IID_X(IXAudio2, 8bcf1f58, 9fe7, 4583, 8a, c6, e2, ad, c4, 65, c8, bb);

DECLARE_INTERFACE(IXAudio2Voice);

#define XAUDIO2_COMMIT_NOW          0
#define XAUDIO2_DEFAULT_CHANNELS    0
#define XAUDIO2_DEFAULT_SAMPLERATE  0
#define XAUDIO2_DEFAULT_FREQ_RATIO  4.0f
#define XAUDIO2_DEBUG_ENGINE        0x0001
#define XAUDIO2_VOICE_NOSRC         0x0004

typedef enum XAUDIO2_DEVICE_ROLE {
  NotDefaultDevice            = 0x0,
  DefaultConsoleDevice        = 0x1,
  DefaultMultimediaDevice     = 0x2,
  DefaultCommunicationsDevice = 0x4,
  DefaultGameDevice           = 0x8,
  GlobalDefaultDevice         = 0xf,
  InvalidDeviceRole = ~GlobalDefaultDevice,
} XAUDIO2_DEVICE_ROLE;

typedef struct XAUDIO2_DEVICE_DETAILS {
  WCHAR DeviceID[256];
  WCHAR DisplayName[256];
  XAUDIO2_DEVICE_ROLE Role;
  WAVEFORMATEXTENSIBLE OutputFormat;
} XAUDIO2_DEVICE_DETAILS;

typedef struct XAUDIO2_VOICE_DETAILS {
  UINT32 CreationFlags;
  UINT32 InputChannels;
  UINT32 InputSampleRate;
} XAUDIO2_VOICE_DETAILS;

typedef enum XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER {
  Processor1  = 0x00000001,
  Processor2  = 0x00000002,
  Processor3  = 0x00000004,
  Processor4  = 0x00000008,
  Processor5  = 0x00000010,
  Processor6  = 0x00000020,
  Processor7  = 0x00000040,
  Processor8  = 0x00000080,
  Processor9  = 0x00000100,
  Processor10 = 0x00000200,
  Processor11 = 0x00000400,
  Processor12 = 0x00000800,
  Processor13 = 0x00001000,
  Processor14 = 0x00002000,
  Processor15 = 0x00004000,
  Processor16 = 0x00008000,
  Processor17 = 0x00010000,
  Processor18 = 0x00020000,
  Processor19 = 0x00040000,
  Processor20 = 0x00080000,
  Processor21 = 0x00100000,
  Processor22 = 0x00200000,
  Processor23 = 0x00400000,
  Processor24 = 0x00800000,
  Processor25 = 0x01000000,
  Processor26 = 0x02000000,
  Processor27 = 0x04000000,
  Processor28 = 0x08000000,
  Processor29 = 0x10000000,
  Processor30 = 0x20000000,
  Processor31 = 0x40000000,
  Processor32 = 0x80000000,
  XAUDIO2_ANY_PROCESSOR = 0xffffffff,
  XAUDIO2_DEFAULT_PROCESSOR = XAUDIO2_ANY_PROCESSOR,
} XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER, XAUDIO2_PROCESSOR;

typedef struct XAUDIO2_VOICE_SENDS {
  UINT32 OutputCount;
  IXAudio2Voice** pOutputVoices;
} XAUDIO2_VOICE_SENDS;

typedef struct XAUDIO2_EFFECT_DESCRIPTOR {
  IUnknown* pEffect;
  BOOL InitialState;
  UINT32 OutputChannels;
} XAUDIO2_EFFECT_DESCRIPTOR;

typedef struct XAUDIO2_EFFECT_CHAIN {
  UINT32 EffectCount;
  const XAUDIO2_EFFECT_DESCRIPTOR* pEffectDescriptors;
} XAUDIO2_EFFECT_CHAIN;

typedef enum XAUDIO2_FILTER_TYPE {
  LowPassFilter,
  BandPassFilter,
  HighPassFilter,
} XAUDIO2_FILTER_TYPE;

typedef struct XAUDIO2_FILTER_PARAMETERS {
  XAUDIO2_FILTER_TYPE Type;
  float Frequency;
  float OneOverQ;
} XAUDIO2_FILTER_PARAMETERS;

typedef struct XAUDIO2_BUFFER {
  UINT32 Flags;
  UINT32 AudioBytes;
  const BYTE* pAudioData;
  UINT32 PlayBegin;
  UINT32 PlayLength;
  UINT32 LoopBegin;
  UINT32 LoopLength;
  UINT32 LoopCount;
  void* pContext;
} XAUDIO2_BUFFER;

typedef struct XAUDIO2_BUFFER_WMA {
  const UINT32* pDecodedPacketCumulativeBytes;
  UINT32 PacketCount;
} XAUDIO2_BUFFER_WMA;

typedef struct XAUDIO2_VOICE_STATE {
  void* pCurrentBufferContext;
  UINT32 BuffersQueued;
  UINT64 SamplesPlayed;
} XAUDIO2_VOICE_STATE;

typedef struct XAUDIO2_PERFORMANCE_DATA {
  UINT64 AudioCyclesSinceLastQuery;
  UINT64 TotalCyclesSinceLastQuery;
  UINT32 MinimumCyclesPerQuantum;
  UINT32 MaximumCyclesPerQuantum;
  UINT32 MemoryUsageInBytes;
  UINT32 CurrentLatencyInSamples;
  UINT32 GlitchesSinceEngineStarted;
  UINT32 ActiveSourceVoiceCount;
  UINT32 TotalSourceVoiceCount;
  UINT32 ActiveSubmixVoiceCount;
  UINT32 TotalSubmixVoiceCount;
  UINT32 ActiveXmaSourceVoices;
  UINT32 ActiveXmaStreams;
} XAUDIO2_PERFORMANCE_DATA;

typedef struct XAUDIO2_DEBUG_CONFIGURATION {
  UINT32 TraceMask;
  UINT32 BreakMask;
  BOOL LogThreadID;
  BOOL LogFileline;
  BOOL LogFunctionName;
  BOOL LogTiming;
} XAUDIO2_DEBUG_CONFIGURATION;

DECLARE_INTERFACE(IXAudio2EngineCallback) {
  STDMETHOD_(void, OnProcessingPassStart) (THIS) PURE;
  STDMETHOD_(void, OnProcessingPassEnd) (THIS) PURE;
  STDMETHOD_(void, OnCriticalError) (THIS_ HRESULT Error) PURE;
};

DECLARE_INTERFACE(IXAudio2VoiceCallback) {
  STDMETHOD_(void, OnVoiceProcessingPassStart) (THIS_ UINT32 BytesRequired) PURE;
  STDMETHOD_(void, OnVoiceProcessingPassEnd) (THIS) PURE;
  STDMETHOD_(void, OnStreamEnd) (THIS) PURE;
  STDMETHOD_(void, OnBufferStart) (THIS_ void* pBufferContext) PURE;
  STDMETHOD_(void, OnBufferEnd) (THIS_ void* pBufferContext) PURE;
  STDMETHOD_(void, OnLoopEnd) (THIS_ void* pBufferContext) PURE;
  STDMETHOD_(void, OnVoiceError) (THIS_ void* pBufferContext, HRESULT Error) PURE;
};

DECLARE_INTERFACE(IXAudio2Voice) {
  #define Declare_IXAudio2Voice_Methods() \
  STDMETHOD_(void, GetVoiceDetails) (THIS_ XAUDIO2_VOICE_DETAILS* pVoiceDetails) PURE; \
  STDMETHOD(SetOutputVoices) (THIS_ const XAUDIO2_VOICE_SENDS* pSendList) PURE; \
  STDMETHOD(SetEffectChain) (THIS_ const XAUDIO2_EFFECT_CHAIN* pEffectChain) PURE; \
  STDMETHOD(EnableEffect) (THIS_ UINT32 EffectIndex, \
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
  STDMETHOD(DisableEffect) (THIS_ UINT32 EffectIndex, \
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
  STDMETHOD_(void, GetEffectState) (THIS_ UINT32 EffectIndex, BOOL* pEnabled) PURE; \
  STDMETHOD(SetEffectParameters) (THIS_ UINT32 EffectIndex, \
    const void* pParameters, \
    UINT32 ParametersByteSize, \
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
  STDMETHOD(GetEffectParameters) (THIS_ UINT32 EffectIndex, void* pParameters, \
    UINT32 ParametersByteSize) PURE; \
  STDMETHOD(SetFilterParameters) (THIS_ const XAUDIO2_FILTER_PARAMETERS* pParameters, \
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
  STDMETHOD_(void, GetFilterParameters) (THIS_ XAUDIO2_FILTER_PARAMETERS* pParameters) PURE; \
  STDMETHOD(SetVolume) (THIS_ float Volume, \
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
  STDMETHOD_(void, GetVolume) (THIS_ float* pVolume) PURE; \
  STDMETHOD(SetChannelVolumes) (THIS_ UINT32 Channels, const float* pVolumes, \
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
  STDMETHOD_(void, GetChannelVolumes) (THIS_ UINT32 Channels, float* pVolumes) PURE; \
  STDMETHOD(SetOutputMatrix) (THIS_ IXAudio2Voice* pDestinationVoice, \
    UINT32 SourceChannels, UINT32 DestinationChannels, \
    const float* pLevelMatrix, \
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
  STDMETHOD_(void, GetOutputMatrix) (THIS_ IXAudio2Voice* pDestinationVoice, \
    UINT32 SourceChannels, UINT32 DestinationChannels, \
    float* pLevelMatrix) PURE; \
  STDMETHOD_(void, DestroyVoice) (THIS) PURE

  Declare_IXAudio2Voice_Methods();
};

DECLARE_INTERFACE_(IXAudio2MasteringVoice, IXAudio2Voice) {
  Declare_IXAudio2Voice_Methods();
};

DECLARE_INTERFACE_(IXAudio2SubmixVoice, IXAudio2Voice) {
  Declare_IXAudio2Voice_Methods();
};

DECLARE_INTERFACE_(IXAudio2SourceVoice, IXAudio2Voice) {
  Declare_IXAudio2Voice_Methods();
  STDMETHOD(Start) (THIS_ UINT32 Flags, UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
  STDMETHOD(Stop) (THIS_ UINT32 Flags, UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
  STDMETHOD(SubmitSourceBuffer) (THIS_ const XAUDIO2_BUFFER* pBuffer, const XAUDIO2_BUFFER_WMA* pBufferWMA X2DEFAULT(NULL)) PURE;
  STDMETHOD(FlushSourceBuffers) (THIS) PURE;
  STDMETHOD(Discontinuity) (THIS) PURE;
  STDMETHOD(ExitLoop) (THIS_ UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
  STDMETHOD_(void, GetState) (THIS_ XAUDIO2_VOICE_STATE* pVoiceState) PURE;
  STDMETHOD(SetFrequencyRatio) (THIS_ float Ratio,
    UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
  STDMETHOD_(void, GetFrequencyRatio) (THIS_ float* pRatio) PURE;
};

DECLARE_INTERFACE_(IXAudio2, IUnknown) {
  STDMETHOD(QueryInterface) (THIS_ REFIID riid, void** ppvInterface) PURE;
  STDMETHOD_(ULONG, AddRef) (THIS) PURE;
  STDMETHOD_(ULONG, Release) (THIS) PURE;
  STDMETHOD(GetDeviceCount) (THIS_ UINT32* pCount) PURE;
  STDMETHOD(GetDeviceDetails) (THIS_ UINT32 Index, XAUDIO2_DEVICE_DETAILS* pDeviceDetails) PURE;
  STDMETHOD(Initialize) (THIS_ UINT32 Flags X2DEFAULT(0),
    XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR)) PURE;
  STDMETHOD(RegisterForCallbacks) (IXAudio2EngineCallback* pCallback) PURE;
  STDMETHOD_(void, UnregisterForCallbacks) (IXAudio2EngineCallback* pCallback) PURE;
  STDMETHOD(CreateSourceVoice) (THIS_ IXAudio2SourceVoice** ppSourceVoice,
    const WAVEFORMATEX* pSourceFormat,
    UINT32 Flags X2DEFAULT(0),
    float MaxFrequencyRatio X2DEFAULT(XAUDIO2_DEFAULT_FREQ_RATIO),
    IXAudio2VoiceCallback* pCallback X2DEFAULT(NULL),
    const XAUDIO2_VOICE_SENDS* pSendList X2DEFAULT(NULL),
    const XAUDIO2_EFFECT_CHAIN* pEffectChain X2DEFAULT(NULL)) PURE;
  STDMETHOD(CreateSubmixVoice) (THIS_ IXAudio2SubmixVoice** ppSubmixVoice,
    UINT32 InputChannels, UINT32 InputSampleRate,
    UINT32 Flags X2DEFAULT(0), UINT32 ProcessingStage X2DEFAULT(0),
    const XAUDIO2_VOICE_SENDS* pSendList X2DEFAULT(NULL),
    const XAUDIO2_EFFECT_CHAIN* pEffectChain X2DEFAULT(NULL)) PURE;
  STDMETHOD(CreateMasteringVoice) (THIS_ IXAudio2MasteringVoice** ppMasteringVoice,
    UINT32 InputChannels X2DEFAULT(XAUDIO2_DEFAULT_CHANNELS),
    UINT32 InputSampleRate X2DEFAULT(XAUDIO2_DEFAULT_SAMPLERATE),
    UINT32 Flags X2DEFAULT(0), UINT32 DeviceIndex X2DEFAULT(0),
    const XAUDIO2_EFFECT_CHAIN* pEffectChain X2DEFAULT(NULL)) PURE;
  STDMETHOD(StartEngine) (THIS) PURE;
  STDMETHOD_(void, StopEngine) (THIS) PURE;
  STDMETHOD(CommitChanges) (THIS_ UINT32 OperationSet) PURE;
  STDMETHOD_(void, GetPerformanceData) (THIS_ XAUDIO2_PERFORMANCE_DATA* pPerfData) PURE;
  STDMETHOD_(void, SetDebugConfiguration) (THIS_ const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
    void* pReserved X2DEFAULT(NULL)) PURE;
};

__inline HRESULT XAudio2Create(IXAudio2** ppXAudio2, UINT32 Flags X2DEFAULT(0),
XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR)) {
  IXAudio2* pXAudio2;
  HRESULT hr = CoCreateInstance((Flags & XAUDIO2_DEBUG_ENGINE) ? CLSID_XAudio2_Debug : CLSID_XAudio2,
    NULL, CLSCTX_INPROC_SERVER, IID_IXAudio2, (void**)&pXAudio2);
  if(SUCCEEDED(hr)) {
    hr = pXAudio2->Initialize(Flags, XAudio2Processor);
    if(SUCCEEDED(hr)) {
      *ppXAudio2 = pXAudio2;
    } else {
      pXAudio2->Release();
    }
  }
  return hr;
}