#ifndef _DSDMO_H_
#define _DSDMO_H_

#include <mmsystem.h>
#include <dsoundp.h>  // For effect IID and ClassID declarations

extern double LogNorm[32];
extern float mylog( float finput, unsigned long maxexponent);
extern DWORD g_amPlatform;
extern long g_cComponent;
extern HMODULE g_hModule;

#define EXT_STD_CREATE(x) \
    extern HRESULT CreateCDirectSound ## x ## DMO(IUnknown **ppunk);

#define EXT_STD_CAPTURE_CREATE(x) \
    extern HRESULT CreateCDirectSoundCapture ## x ## DMO(IUnknown **ppunk);
    
// Exception warnings   
//
#pragma warning(disable:4530)    
#define STD_CREATE(x) \
HRESULT CreateCDirectSound ## x ## DMO(IUnknown **ppunk)                \
    {                                                                   \
        HRESULT hr = E_OUTOFMEMORY;                                     \
        CDirectSound ## x ## DMO *p = NULL;                             \
        try {                                                           \
            p = new CDirectSound ## x ## DMO;                           \
        } catch (...) {};                                               \
        if (p) {                                                        \
            hr = p->InitOnCreation();                                   \
            if (FAILED(hr))                                             \
            {                                                           \
                p->Release();                                           \
                p = NULL;                                               \
            }                                                           \
        }                                                               \
        *ppunk = static_cast<IPersist*>(p);                             \
        return hr;                                                      \
    }

#define STD_CAPTURE_CREATE(x) \
HRESULT CreateCDirectSoundCapture ## x ## DMO(IUnknown **ppunk)         \
    {                                                                   \
        HRESULT hr = E_OUTOFMEMORY;                                     \
        CDirectSoundCapture ## x ## DMO *p = NULL;                      \
        try {                                                           \
            p = new CDirectSoundCapture ## x ## DMO;                    \
        } catch (...) {};                                               \
        if (p) {                                                        \
            hr = p->InitOnCreation();                                   \
            if (FAILED(hr))                                             \
            {                                                           \
                p->Release();                                           \
                p = NULL;                                               \
            }                                                           \
        }                                                               \
        *ppunk = static_cast<IPersist*>(p);                             \
        return hr;                                                      \
    }

// Common #define's and templates for all filters
//
#define MaxSamplesPerSec	96000
#define PI 3.1415926535
#define DefineMsecSize(y, x)	((int)(((x) * (y)) / 1000))
#define DefineDelayLineSize(x)	DefineMsecSize(MaxSamplesPerSec, x)
//#define GetMsecPos(x)		(DefineDelayLineSize(x))
#define GetMsecPos(x)		(DefineMsecSize(m_EaxSamplesPerSec, x))
#define FractMask		0xfff
#define FractMultiplier		0x1000

template <int BufferSize> class DelayBuffer
{
	int Buffer[BufferSize];
	int BufferPos;

public:
	inline void Init(void)
	{
		BufferPos = 0;
		memset(Buffer, 0, sizeof(Buffer));
	}

	inline int Pos(int x)
	{
		x += BufferPos;
		while (x < 0)
			x += BufferSize * FractMultiplier;
		x /= FractMultiplier;
		while (x >= BufferSize)
			x -= BufferSize;

		return(x);
	}

	inline void Bump(void)
	{
		if (BufferPos == 0)
			BufferPos += BufferSize * FractMultiplier;
		if (BufferPos < 0)
			BufferPos += BufferSize * FractMultiplier;
		BufferPos -= FractMultiplier;
	}

	inline int& operator[] (int i)
	{
		return (Buffer[i]);
	}
};

template <class type, float Msec, int AdditionalPositions> class DelayBuffer2
{
	union {
		type Buffer[DefineDelayLineSize(Msec) + AdditionalPositions];
		type BufferDisplay[DefineDelayLineSize(Msec/10) + AdditionalPositions];
	};
	int BufferPos;
	int BufferSize;

public:
	inline void Init(int SamplesPerSec)
	{
		BufferPos = 0;
		BufferSize = DefineMsecSize(Msec, SamplesPerSec) + AdditionalPositions;

		memset(Buffer, 0, sizeof(Buffer));
	}


	inline int FractPos(int x)
	{
		x *= FractMultiplier;
		x += BufferPos;
		while (x < 0)
			x += BufferSize * FractMultiplier;
		x /= FractMultiplier;
		while (x >= BufferSize)
			x -= BufferSize;

		return(x);
	}

	inline int Pos(int x)
	{
		x += BufferPos;
		while (x < 0)
			x += BufferSize * FractMultiplier;
		x /= FractMultiplier;
		while (x >= BufferSize)
			x -= BufferSize;

		return(x);
	}

	inline int LastPos(int x)
	{
		x = Pos(x + BufferSize - 1);

		return(x);
	}

	inline void Bump(void)
	{
		if (BufferPos == 0)
			BufferPos += BufferSize * FractMultiplier;
		if (BufferPos < 0)
			BufferPos += BufferSize * FractMultiplier;
		BufferPos -= FractMultiplier;
	}

	inline type& operator[] (int i)
	{
		return (Buffer[i]);
	}
};

//
//
//
// { EAX
#ifndef _EAXDMO_
#define _EAXDMO_

#define CHECK_PARAM(lo, hi) \
    if (value < lo || value > hi) {return DSERR_INVALIDPARAM;} else;

#define PUT_EAX_VALUE(var, val) \
	m_Eax ## var = val

#define PUT_EAX_FVAL(var, val) \
	m_Eax ## var = (float)(val)

#define PUT_EAX_LVAL(var, val) \
	m_Eax ## var = (long)(val)

#define TOFRACTION(x)	((float)x)
#define INTERPOLATE(x, y)	PUT_EAX_FVAL(x, (y))	// ??? Smooth it out...

#define SET_MPV_FLOAT(var) \
    MP_DATA mpv; \
    mpv = (MP_DATA)var;

#define SET_MPV_LONG SET_MPV_FLOAT

enum ChorusFilterParams 
{
	CFP_Wetdrymix = 0,
	CFP_Depth,
	CFP_Frequency,
	CFP_Waveform,
	CFP_Phase,
	CFP_Feedback,
	CFP_Delay,
	CFP_MAX
};

enum CompressorFilterParams 
{
	CPFP_Gain = 0,
	CPFP_Attack,
	CPFP_Release,
	CPFP_Threshold,
	CPFP_Ratio,
	CPFP_Predelay,
	CPFP_CompMeterReset,
	CPFP_CompInputMeter,
	CPFP_CompGainMeter,
	CPFP_MAX
};

enum DistortionFilterParams 
{
	DFP_Gain = 0,
	DFP_Edge,
	DFP_LpCutoff,
	DFP_EqCenter,
	DFP_EqWidth,
	DFP_MAX
};

enum EchoFilterParams 
{
	EFP_Wetdrymix = 0,
	EFP_Feedback,
	EFP_DelayLeft,
	EFP_DelayRight,
	EFP_PanDelay,
	EFP_MAX
};

enum FilterParams 
{
	FFP_Wetdrymix = 0,
	FFP_Waveform,
	FFP_Frequency,
	FFP_Depth,
	FFP_Phase,
	FFP_Feedback,
	FFP_Delay,
	FFP_MAX
};

enum ParamEqFilterParams 
{
	PFP_Center = 0,
	PFP_Bandwidth,
	PFP_Gain,
	PFP_MAX
};

enum GargleFilterParams
{
    GFP_Rate = 0,
    GFP_Shape,
    GFP_MAX
};

enum SVerbParams
{
    SVP_Gain = 0,
    SVP_Mix,
    SVP_ReverbTime,
    SVP_Ratio,
    SVP_MAX
};

enum AecParams
{
    AECP_Enable = 0,
    AECP_MAX
};

enum NoiseSuppressParams
{
    NSP_Enable = 0,
    NSP_MAX
};

enum AgcParams
{
    AGCP_Enable = 0,
    AGCP_MAX
};

#define GET_PUT(x, type) \
	STDMETHOD(get_Eax ## x) \
		( THIS_ \
		type *Eax ## x \
		) PURE; \
	STDMETHOD(put_Eax ## x) \
		( THIS_ \
		type Eax ## x \
		) PURE

interface IChorus : public IUnknown
{
public:
	GET_PUT(Wetdrymix, float);
	GET_PUT(Depth,     float);
	GET_PUT(Frequency, float);
	GET_PUT(Waveform,  long);
	GET_PUT(Phase,     long);
	GET_PUT(Feedback,  float);
	GET_PUT(Delay,     float);

};

interface ICompressor : public IUnknown
{
public:
	GET_PUT(Gain,           float);
	GET_PUT(Attack,         float);
	GET_PUT(Release,        float);
	GET_PUT(Threshold,      float);
	GET_PUT(Ratio,          float);
	GET_PUT(Predelay,       float);
	GET_PUT(CompMeterReset, float);
	GET_PUT(CompInputMeter, float);
	GET_PUT(CompGainMeter,  float);

};

interface IDistortion : public IUnknown
{
public:
	GET_PUT(Gain,     float);
	GET_PUT(Edge,     float);
	GET_PUT(LpCutoff, float);
	GET_PUT(EqCenter, float);
	GET_PUT(EqWidth,  float);
};

interface IEcho : public IUnknown
{
public:
	GET_PUT(Wetdrymix,  float);
	GET_PUT(Feedback,   float);
	GET_PUT(DelayLeft,  float);
	GET_PUT(DelayRight, float);
	GET_PUT(PanDelay,   long);
};

interface IFlanger : public IUnknown
{
public:
	GET_PUT(Wetdrymix,  float);
	GET_PUT(Waveform,   long);
	GET_PUT(Frequency,  float);
	GET_PUT(Depth,      float);
	GET_PUT(Phase,      long);
	GET_PUT(Feedback,   float);
	GET_PUT(Delay,      float);
};

interface IParamEq : public IUnknown
{
public:
	GET_PUT(Center,    float);
	GET_PUT(Bandwidth, float);
	GET_PUT(Gain,      float);
};

#undef GET_PUT


#if 0

// Replaced these with the GUIDs from dsound.x; e.g. for chorus, the interface
// ID is IID_IDirectSoundFXChorus and the ClassId is GUID_DSFX_STANDARD_CHORUS.

DEFINE_GUID(IID_IChorus, 0x514b6fb2,0x0611,0x4714,0x80,0x02,0x0e,0x06,0x29,0x92,0x7d,0x8e);
DEFINE_GUID(IID_ICompressor, 0x514b6fc0,0x0611,0x4714,0x80,0x02,0x0e,0x06,0x29,0x92,0x7d,0x8e);
DEFINE_GUID(IID_IDistortion, 0x514b6fb8,0x0611,0x4714,0x80,0x02,0x0e,0x06,0x29,0x92,0x7d,0x8e);
DEFINE_GUID(IID_IEcho,0x514b6fb3,0x0611,0x4714,0x80,0x02,0x0e,0x06,0x29,0x92,0x7d,0x8e);
DEFINE_GUID(IID_IFlanger,0x514b6fb4,0x0611,0x4714,0x80,0x02,0x0e,0x06,0x29,0x92,0x7d,0x8e);
DEFINE_GUID(IID_IParamEq,0x514b6fb7,0x0611,0x4714,0x80,0x02,0x0e,0x06,0x29,0x92,0x7d,0x8e);

DEFINE_GUID(CLSID_DirectSoundChorusDMO, 0x120ced86,0x3bf4,0x4173,0xa1,0x32,0x3c,0xb4,0x06,0xcf,0x32,0x31);
DEFINE_GUID(CLSID_DirectSoundCompressorDMO,0x120ced92,0x3bf4,0x4173,0xa1,0x32,0x3c,0xb4,0x06,0xcf,0x32,0x31);
DEFINE_GUID(CLSID_DirectSoundDistortionDMO,0x120ced90,0x3bf4,0x4173,0xa1,0x32,0x3c,0xb4,0x06,0xcf,0x32,0x31);
DEFINE_GUID(CLSID_DirectSoundEchoDMO,0x120ced87,0x3bf4,0x4173,0xa1,0x32,0x3c,0xb4,0x06,0xcf,0x32,0x31);
DEFINE_GUID(CLSID_DirectSoundFlangerDMO,0x120ced88,0x3bf4,0x4173,0xa1,0x32,0x3c,0xb4,0x06,0xcf,0x32,0x31);
DEFINE_GUID(CLSID_DirectSoundParamEqDMO,0x120ced89,0x3bf4,0x4173,0xa1,0x32,0x3c,0xb4,0x06,0xcf,0x32,0x31);

#endif

DEFINE_GUID(IID_IGargle, 0xd616f352, 0xd622, 0x11ce, 0xaa, 0xc5, 0x00, 0x20, 0xaf, 0x0b, 0x99, 0xa3);
DEFINE_GUID(CLSID_GargleDMO, 0xdafd8210,0x5711,0x4b91,0x9f,0xe3,0xf7,0x5b,0x7a,0xe2,0x79,0xbf);
DEFINE_GUID(CLSID_DirectSoundPropGargle,0x794885CC,0x5EB7,0x46E3,0xA9,0x37,0xAD,0x89,0x0A,0x6C,0x66,0x77);

DEFINE_GUID(CLSID_DirectSoundPropChorus,0x60129CFD,0x2E9B,0x4098,0xAA,0x4B,0xD6,0xCF,0xAD,0xA2,0x65,0xC3);
DEFINE_GUID(CLSID_DirectSoundPropFlanger,0x22AF00DF,0x46B4,0x4F51,0xA3,0x63,0x68,0x54,0xD5,0x2E,0x13,0xA0);
DEFINE_GUID(CLSID_DirectSoundPropDistortion,0x5858107D,0x11EA,0x47B1,0x96,0x94,0x3F,0x29,0xF7,0x68,0x0F,0xB8);
DEFINE_GUID(CLSID_DirectSoundPropEcho,0xD45CF2C7,0x48CF,0x4234,0x86,0xE2,0x45,0x59,0xC3,0x2F,0xAD,0x1A);
DEFINE_GUID(CLSID_DirectSoundPropCompressor,0xED3DC730,0x31E5,0x4108,0xAD,0x8A,0x39,0x62,0xC9,0x30,0x42,0x5E);
DEFINE_GUID(CLSID_DirectSoundPropParamEq,0xAE86C36D,0x808E,0x4B07,0xB7,0x99,0x56,0xD7,0x36,0x1C,0x38,0x35);
DEFINE_GUID(CLSID_DirectSoundPropWavesReverb,0x6A879859,0x3858,0x4322,0x97,0x1A,0xB7,0x05,0xF3,0x49,0xF1,0x24);
DEFINE_GUID(CLSID_DirectSoundPropI3DL2Reverb,0xD3952B77,0x2D22,0x4B72,0x8D,0xF4,0xBA,0x26,0x7A,0x9C,0x12,0xD0);
DEFINE_GUID(CLSID_DirectSoundPropI3DL2Source,0x3DC26D0C,0xBEFF,0x406C,0x89,0xB0,0xCA,0x13,0xE2,0xBD,0x91,0x72);

// } EAX

#endif 

#endif // _DSDMO_H_