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645 lines
19 KiB
645 lines
19 KiB
#include <windows.h>
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#include "flangerp.h"
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#include "clone.h"
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STD_CREATE(Flanger)
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::NDQueryInterface
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//
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// Subclass can override if it wants to implement more interfaces.
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//
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STDMETHODIMP CDirectSoundFlangerDMO::NDQueryInterface(THIS_ REFIID riid, LPVOID *ppv)
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{
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IMP_DSDMO_QI(riid,ppv);
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if (riid == IID_IPersist)
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{
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return GetInterface((IPersist*)this, ppv);
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}
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else if (riid == IID_IMediaObject)
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{
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return GetInterface((IMediaObject*)this, ppv);
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}
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else if (riid == IID_IDirectSoundFXFlanger)
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{
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return GetInterface((IDirectSoundFXFlanger*)this, ppv);
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}
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else if (riid == IID_ISpecifyPropertyPages)
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{
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return GetInterface((ISpecifyPropertyPages*)this, ppv);
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}
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else if (riid == IID_IMediaParams)
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{
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return GetInterface((IMediaParams*)this, ppv);
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}
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else if (riid == IID_IMediaParamInfo)
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{
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return GetInterface((IMediaParamInfo*)this, ppv);
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}
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else
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return CComBase::NDQueryInterface(riid, ppv);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::CDirectSoundFlangerDMO
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//
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CDirectSoundFlangerDMO::CDirectSoundFlangerDMO( IUnknown *pUnk, HRESULT *phr )
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: CComBase( pUnk, phr ),
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m_fDirty(false)
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// { EAX: put init data here if any (otherwise use Discontinuity).
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// } EAX
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{
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m_EaxSamplesPerSec = 22050;
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m_DelayL .Init(0);
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m_DelayR .Init(0);
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m_DryDelayL.Init(0);
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m_DryDelayR.Init(0);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::Init()
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//
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HRESULT CDirectSoundFlangerDMO::Init()
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{
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DSFXFlanger flanger;
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HRESULT hr;
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// Force recalc of all internal parameters
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//
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hr = GetAllParameters(&flanger);
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if (SUCCEEDED(hr)) hr = SetAllParameters(&flanger);
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if (SUCCEEDED(hr)) hr = m_DelayL .Init(m_EaxSamplesPerSec);
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if (SUCCEEDED(hr)) hr = m_DelayR .Init(m_EaxSamplesPerSec);
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if (SUCCEEDED(hr)) hr = m_DryDelayL.Init(m_EaxSamplesPerSec);
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if (SUCCEEDED(hr)) hr = m_DryDelayR.Init(m_EaxSamplesPerSec);
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if (SUCCEEDED(hr)) hr = Discontinuity();
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return hr;
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}
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// §§ bugbug on dsdmo.h: FilterParams should be FlangerFilterParams and need DSFXFLANGER_WAVE_TRIANGLE/DSFXFLANGER_WAVE_SIN
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const MP_CAPS g_capsAll = MP_CAPS_CURVE_JUMP | MP_CAPS_CURVE_LINEAR | MP_CAPS_CURVE_SQUARE | MP_CAPS_CURVE_INVSQUARE | MP_CAPS_CURVE_SINE;
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static ParamInfo g_params[] =
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{
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// index type caps min, max, neutral, unit text, label, pwchText
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FFP_Wetdrymix, MPT_FLOAT, g_capsAll, DSFXFLANGER_WETDRYMIX_MIN, DSFXFLANGER_WETDRYMIX_MAX, 50, L"%", L"WetDryMix", L"",
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FFP_Depth, MPT_FLOAT, g_capsAll, DSFXFLANGER_DEPTH_MIN, DSFXFLANGER_DEPTH_MAX, 100, L"", L"Depth", L"",
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FFP_Frequency, MPT_FLOAT, g_capsAll, DSFXFLANGER_FREQUENCY_MIN, DSFXFLANGER_FREQUENCY_MAX, (float).25, L"Hz", L"Frequency", L"",
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FFP_Waveform, MPT_ENUM, g_capsAll, DSFXCHORUS_WAVE_TRIANGLE, DSFXCHORUS_WAVE_SIN, DSFXCHORUS_WAVE_SIN, L"", L"WaveShape", L"Triangle,Sine",
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FFP_Phase, MPT_INT, g_capsAll, DSFXFLANGER_PHASE_MIN, DSFXFLANGER_PHASE_MAX, 2, L"", L"Phase", L"",
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FFP_Feedback, MPT_FLOAT, g_capsAll, DSFXFLANGER_FEEDBACK_MIN, DSFXFLANGER_FEEDBACK_MAX, -50, L"", L"Feedback", L"",
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FFP_Delay, MPT_FLOAT, g_capsAll, DSFXFLANGER_DELAY_MIN, DSFXFLANGER_DELAY_MAX, 2, L"", L"Delay", L"",
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};
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HRESULT CDirectSoundFlangerDMO::InitOnCreation()
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{
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HRESULT hr = InitParams(1, &GUID_TIME_REFERENCE, 0, 0, sizeof(g_params)/sizeof(*g_params), g_params);
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m_ModdelayL = m_ModdelayR = 0;
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m_ModdelayL1 = m_ModdelayR1 = 0x800;
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return hr;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::~CDirectSoundFlangerDMO
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//
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CDirectSoundFlangerDMO::~CDirectSoundFlangerDMO()
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{
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m_DelayL .Init(-1);
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m_DelayR .Init(-1);
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m_DryDelayL.Init(-1);
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m_DryDelayR.Init(-1);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::Clone
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//
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STDMETHODIMP CDirectSoundFlangerDMO::Clone(IMediaObjectInPlace **pp)
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{
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return StandardDMOClone<CDirectSoundFlangerDMO, DSFXFlanger>(this, pp);
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}
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//
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// Bump - bump the delay pointers.
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//
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void CDirectSoundFlangerDMO::Bump(void)
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{
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// EAX {
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m_DelayL.Bump();
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m_DelayR.Bump();
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m_DryDelayL.Bump();
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m_DryDelayR.Bump();
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// }
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}
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HRESULT CDirectSoundFlangerDMO::Discontinuity()
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{
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// { EAX
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m_DelayL .ZeroBuffer();
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m_DelayR .ZeroBuffer();
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m_DryDelayL.ZeroBuffer();
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m_DryDelayR.ZeroBuffer();
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// These values have defined initial values.
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// m_FixedptrL = m_DelayL.LastPos(0) * FractMultiplier;
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m_DelayptrL = m_ModdelayL1 = m_ModdelayL = (int)m_EaxFixedptrL;
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// m_FixedptrR = m_DelayR.LastPos(0) * FractMultiplier;
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m_DelayptrR = m_ModdelayR1 = m_ModdelayR = (int)m_EaxFixedptrR;
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if (!m_EaxWaveform) {
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m_LfoState[0] = (float)0.0;
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m_LfoState[1] = (float)0.5;
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}
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else {
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m_LfoState[0] = (float)0.0;
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m_LfoState[1] = (float)0.99999999999;
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}
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// } EAX
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return S_OK;
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}
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//////////////////////////////////////////////////////////////////////////////
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static int LMul [5] = { 1, 1, 1, 1, -1};
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static int RMul [5] = { -1, -1, 1, 1, 1};
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static int RPhase[5] = { 0, 1, 0, 1, 0};
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__forceinline void CDirectSoundFlangerDMO::DoOneSample(int *l, int *r)
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{
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float inPortL = (float)*l;
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float inPortR = (float)*r;
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float XWave[2];
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#define sinwave XWave[0]
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#define coswave XWave[1]
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int Pos0, PosX, tempvar;
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float val;
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// dryDelayL[] = inPortL;
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Pos0 = m_DryDelayL.Pos(0);
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m_DryDelayL[Pos0] = inPortL;
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// delayL[] = ACC + delayL[fixedptrL] * fbcoef;
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Pos0 = m_DelayL.Pos(0);
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PosX = m_DelayL.Pos(m_EaxFixedptrL);
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m_DelayL[Pos0] = inPortL + m_DelayL[PosX] * m_EaxFbCoef;
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// dryDelayR[] = inPortR;
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Pos0 = m_DryDelayR.Pos(0);
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m_DryDelayR[Pos0] = inPortR;
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// delayR[] = ACC + delayR[fixedptrR] * fbcoef;
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Pos0 = m_DelayR.Pos(0);
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PosX = m_DelayR.Pos(m_EaxFixedptrR);
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m_DelayR[Pos0] = inPortR + m_DelayR[PosX] * m_EaxFbCoef;
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// Sinusoid : lfocoef = 2*sin(PI*f/FS) // ??? Update this when form changes.
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if (!m_EaxWaveform) {
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m_LfoState[0] = m_LfoState[0] + m_EaxLfoCoef;
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if (m_LfoState[0] > 1) m_LfoState[0] -= 2;
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m_LfoState[1] = m_LfoState[1] + m_EaxLfoCoef;
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if (m_LfoState[1] > 1) m_LfoState[1] -= 2;
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sinwave = (float)fabs(m_LfoState[0]);
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coswave = (float)fabs(m_LfoState[1]);
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sinwave = -1 + 2 * sinwave;
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coswave = -1 + 2 * coswave;
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}
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else {
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m_LfoState[0] = m_LfoState[0] + m_EaxLfoCoef * m_LfoState[1];
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m_LfoState[1] = m_LfoState[1] - m_EaxLfoCoef * m_LfoState[0];
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sinwave = m_LfoState[0];
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coswave = m_LfoState[1];
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}
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// Left Out
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// tempvar ^= delayptrL << 20;
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tempvar = m_DelayptrL & FractMask;
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// tempvar = tempvar : delayL[moddelayL] < delayL[moddelayL1];
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Pos0 = m_DelayL.Pos(m_ModdelayL);
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PosX = m_DelayL.Pos(m_ModdelayL1);
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val = ((float)tempvar) / FractMultiplier;
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val = Interpolate(m_DelayL[Pos0], m_DelayL[PosX], val);
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// outPortL = wetlevel : dryDelayL[2] < tempvar;
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Pos0 = m_DryDelayL.FractPos(2);
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val = Interpolate(m_DryDelayL[Pos0], val, m_EaxWetlevel);
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*l = Saturate(val);
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// Right Out
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// tempvar ^= delayptrR << 20;
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tempvar = m_DelayptrR & FractMask;
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// tempvar = tempvar : delayR[moddelayR] < delayR[moddelayR1];
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Pos0 = m_DelayR.Pos(m_ModdelayR);
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PosX = m_DelayR.Pos(m_ModdelayR1);
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val = ((float)tempvar) / FractMultiplier;
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val = Interpolate(m_DelayR[Pos0], m_DelayR[PosX], val);
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// outPortR = wetlevel : dryDelayR[2] < tempvar;
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Pos0 = m_DryDelayR.FractPos(2);
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val = Interpolate(m_DryDelayR[Pos0], val, m_EaxWetlevel);
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*r = Saturate(val);
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// Left Delay Address Calculation
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// Same as efx...
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// m_DelayptrL = (int)(m_EaxFixedptrL + (sinwave * m_EaxDepthCoef));
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#if 0
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switch (m_EaxPhase) {
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case 0:
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case 1:
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case 2:
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case 3: m_DelayptrL = (int)(sinwave * m_EaxDepthCoef); break;
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case 4: m_DelayptrL = - (int)(sinwave * m_EaxDepthCoef); break;
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}
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#else
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#ifdef DONTUSEi386
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{
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int x;
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float f = (sinwave * m_EaxDepthCoef);
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_asm {
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fld f
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fistp x
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}
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m_DelayptrL = LMul[m_EaxPhase] * x;
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}
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#else
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m_DelayptrL = LMul[m_EaxPhase] * (int)(sinwave * m_EaxDepthCoef);
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#endif
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#endif
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m_DelayptrL += m_EaxFixedptrL;
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m_ModdelayL = m_DelayptrL;
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m_ModdelayL1 = m_DelayptrL + FractMultiplier;
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// Right Delay Address Calculation
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// m_DelayptrR = (int)(m_EaxFixedptrR + (coswave * m_EaxDepthCoef));
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#if 0
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switch (m_EaxPhase) {
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case 0: m_DelayptrR = - (int)(sinwave * m_EaxDepthCoef); break;
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case 1: m_DelayptrR = - (int)(coswave * m_EaxDepthCoef); break;
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case 3: m_DelayptrR = (int)(coswave * m_EaxDepthCoef); break;
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case 2:
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case 4: m_DelayptrR = (int)(sinwave * m_EaxDepthCoef); break;
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}
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#else
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Pos0 = RPhase[m_EaxPhase];
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#ifdef DONTUSEi386
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{
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int x;
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float f = (XWave[Pos0] * m_EaxDepthCoef);
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_asm {
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fld f
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fistp x
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}
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m_DelayptrR = RMul [m_EaxPhase] * x;
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}
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#else
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m_DelayptrR = RMul [m_EaxPhase] * (int)(XWave[Pos0] * m_EaxDepthCoef);
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#endif
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#endif
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m_DelayptrR += m_EaxFixedptrR;
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m_ModdelayR = m_DelayptrR;
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m_ModdelayR1 = m_DelayptrR + FractMultiplier;
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Bump();
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::FBRProcess
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//
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HRESULT CDirectSoundFlangerDMO::FBRProcess(DWORD cSamples, BYTE *pIn, BYTE *pOut)
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{
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// { EAX
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#define cb cSamples
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#define pin pIn
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#define pout pOut
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if (m_cChannels == 1) {
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if (m_b8bit) {
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for (;cb > 0; --cb) {
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int i, j;
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i = *(pin+0)-128;
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i *=256;
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j = i;
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DoOneSample(&i, &j);
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i += j;
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i /= 2;
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i /= 256;
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*(pout+0) = (unsigned char)(i + 128);
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pin += sizeof(unsigned char);
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pout += sizeof(unsigned char);
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}
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}
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else if (!m_b8bit) {
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for (;cb > 0; --cb) { // for (;cb > 0; cb -= sizeof(short)) {
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short int *psi = (short int *)pin;
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short int *pso = (short int *)pout;
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int i, j;
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i = *psi;
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j = i;
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DoOneSample(&i, &j);
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i += j;
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i /= 2;
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*pso = (short)i;
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pin += sizeof(short);
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pout += sizeof(short);
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}
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}
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}
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else if (m_cChannels == 2) {
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if (m_b8bit) {
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for (;cb > 0; --cb) { // for (;cb > 0; cb -= 2 * sizeof(unsigned char)) {
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int i, j;
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i = *(pin+0)-128;
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j = *(pin+1)-128;
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i *=256; j *=256;
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DoOneSample(&i, &j);
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i /= 256; j /= 256;
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*(pout+0) = (unsigned char)(i + 128);
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*(pout+1) = (unsigned char)(j + 128);
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pin += 2 * sizeof(unsigned char);
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pout += 2 * sizeof(unsigned char);
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}
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}
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else if (!m_b8bit) {
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for (;cb > 0; --cb) { // for (;cb > 0; cb -= 2 * sizeof(short)) {
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short int *psi = (short int *)pin;
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short int *pso = (short int *)pout;
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int i, j;
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i = *(psi+0);
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j = *(psi+1);
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DoOneSample(&i, &j);
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*(pso+0) = (short)i;
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*(pso+1) = (short)j;
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pin += 2 * sizeof(short);
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pout += 2 * sizeof(short);
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}
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}
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}
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// } EAX
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return S_OK;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::ProcessInPlace
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//
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HRESULT CDirectSoundFlangerDMO::ProcessInPlace(ULONG ulQuanta, LPBYTE pcbData, REFERENCE_TIME rtStart, DWORD dwFlags)
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{
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// Update parameter values from any curves that may be in effect.
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this->UpdateActiveParams(rtStart, *this);
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return FBRProcess(ulQuanta, pcbData, pcbData);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundFlangerDMO::SetParam
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//
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// { EAX
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// }
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HRESULT CDirectSoundFlangerDMO::SetParamInternal(DWORD dwParamIndex, MP_DATA value, bool fSkipPasssingToParamManager)
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{
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long l;
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if (!m_EaxSamplesPerSec) return DMO_E_TYPE_NOT_ACCEPTED; // NO TYPE!
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switch (dwParamIndex)
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{
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case FFP_Wetdrymix :
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CHECK_PARAM(DSFXFLANGER_WETDRYMIX_MIN, DSFXFLANGER_WETDRYMIX_MAX);
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PUT_EAX_VALUE(Wetlevel, value / 100);
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break;
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case FFP_Waveform :
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CHECK_PARAM(DSFXFLANGER_WAVE_TRIANGLE, DSFXFLANGER_WAVE_SIN);
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l = m_EaxWaveform;
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PUT_EAX_VALUE(Waveform, (long)value);
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if (l != m_EaxWaveform) {
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if (!m_EaxWaveform) {
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m_LfoState[0] = (float)0.0;
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m_LfoState[1] = (float)0.5;
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}
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else {
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m_LfoState[0] = (float)0.0;
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m_LfoState[1] = (float)0.99999999999;
|
|
}
|
|
}
|
|
goto x;
|
|
// break;
|
|
|
|
case FFP_Frequency :
|
|
CHECK_PARAM(DSFXFLANGER_FREQUENCY_MIN, DSFXFLANGER_FREQUENCY_MAX);
|
|
|
|
PUT_EAX_VALUE(Frequency, value);
|
|
x:
|
|
if (!m_EaxWaveform) { // Triangle.
|
|
INTERPOLATE
|
|
(
|
|
LfoCoef,
|
|
TOFRACTION(2.0 * (m_EaxFrequency/m_EaxSamplesPerSec) * 1.0)
|
|
);
|
|
}
|
|
else // Sine/Cosine.
|
|
{
|
|
INTERPOLATE
|
|
(
|
|
LfoCoef,
|
|
TOFRACTION(2.0*sin(PI*m_EaxFrequency/m_EaxSamplesPerSec))
|
|
);
|
|
}
|
|
break;
|
|
|
|
case FFP_Depth : {
|
|
CHECK_PARAM(DSFXFLANGER_DEPTH_MIN, DSFXFLANGER_DEPTH_MAX);
|
|
|
|
PUT_EAX_VALUE(Depth, value / 100);
|
|
|
|
double midpoint = m_EaxDelay * m_EaxSamplesPerSec/1000;
|
|
|
|
INTERPOLATE(DepthCoef, ((m_EaxDepth * midpoint) / 2) * FractMultiplier);
|
|
break;
|
|
}
|
|
case FFP_Phase :
|
|
CHECK_PARAM(DSFXFLANGER_PHASE_MIN, DSFXFLANGER_PHASE_MAX);
|
|
|
|
PUT_EAX_VALUE(Phase, (long)value);
|
|
break;
|
|
|
|
case FFP_Feedback :
|
|
CHECK_PARAM(DSFXFLANGER_FEEDBACK_MIN, DSFXFLANGER_FEEDBACK_MAX);
|
|
|
|
PUT_EAX_FVAL(FbCoef, TOFRACTION(value/100));
|
|
break;
|
|
|
|
case FFP_Delay : {
|
|
CHECK_PARAM(DSFXFLANGER_DELAY_MIN, DSFXFLANGER_DELAY_MAX);
|
|
|
|
PUT_EAX_VALUE(Delay, value);
|
|
|
|
double midpoint = m_EaxDelay * m_EaxSamplesPerSec/1000;
|
|
|
|
PUT_EAX_FVAL(DepthCoef, ((m_EaxDepth * midpoint) / 2) * FractMultiplier);
|
|
PUT_EAX_LVAL(FixedptrL, (midpoint + 2) * FractMultiplier);
|
|
PUT_EAX_LVAL(FixedptrR, (midpoint + 2) * FractMultiplier);
|
|
break;
|
|
}
|
|
// } EAX
|
|
default:
|
|
return E_FAIL;
|
|
}
|
|
|
|
// Let base class set this so it can handle all the rest of the param calls.
|
|
// Skip the base class if fSkipPasssingToParamManager. This indicates that we're calling the function
|
|
// internally using valuds that came from the base class -- thus there's no need to tell it values it
|
|
// already knows.
|
|
return fSkipPasssingToParamManager ? S_OK : CParamsManager::SetParam(dwParamIndex, value);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// CDirectSoundFlangerDMO::SetAllParameters
|
|
//
|
|
STDMETHODIMP CDirectSoundFlangerDMO::SetAllParameters(LPCDSFXFlanger pFlanger)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
// Check that the pointer is not NULL
|
|
if (pFlanger == NULL)
|
|
{
|
|
Trace(1,"ERROR: pFlanger is NULL\n");
|
|
hr = E_POINTER;
|
|
}
|
|
// Set the parameters
|
|
if (SUCCEEDED(hr)) hr = SetParam(FFP_Wetdrymix, pFlanger->fWetDryMix);
|
|
if (SUCCEEDED(hr)) hr = SetParam(FFP_Waveform, (float)pFlanger->lWaveform);
|
|
if (SUCCEEDED(hr)) hr = SetParam(FFP_Frequency, pFlanger->fFrequency);
|
|
if (SUCCEEDED(hr)) hr = SetParam(FFP_Depth, pFlanger->fDepth);
|
|
if (SUCCEEDED(hr)) hr = SetParam(FFP_Phase, (float)pFlanger->lPhase);
|
|
if (SUCCEEDED(hr)) hr = SetParam(FFP_Feedback, pFlanger->fFeedback);
|
|
if (SUCCEEDED(hr)) hr = SetParam(FFP_Delay, pFlanger->fDelay);
|
|
|
|
m_fDirty = true;
|
|
return hr;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// CDirectSoundFlangerDMO::GetAllParameters
|
|
//
|
|
STDMETHODIMP CDirectSoundFlangerDMO::GetAllParameters(LPDSFXFlanger pFlanger)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
MP_DATA mpd;
|
|
|
|
if (pFlanger == NULL) return E_POINTER;
|
|
|
|
#define GET_PARAM(x,y) \
|
|
if (SUCCEEDED(hr)) { \
|
|
hr = GetParam(x, &mpd); \
|
|
if (SUCCEEDED(hr)) pFlanger->y = mpd; \
|
|
}
|
|
|
|
#define GET_PARAM_LONG(x,y) \
|
|
if (SUCCEEDED(hr)) { \
|
|
hr = GetParam(x, &mpd); \
|
|
if (SUCCEEDED(hr)) pFlanger->y = (long)mpd; \
|
|
}
|
|
GET_PARAM(FFP_Wetdrymix, fWetDryMix);
|
|
GET_PARAM(FFP_Delay, fDelay);
|
|
GET_PARAM(FFP_Depth, fDepth);
|
|
GET_PARAM(FFP_Frequency, fFrequency);
|
|
GET_PARAM_LONG(FFP_Waveform, lWaveform);
|
|
GET_PARAM_LONG(FFP_Phase, lPhase);
|
|
GET_PARAM(FFP_Feedback, fFeedback);
|
|
|
|
return hr;
|
|
}
|
|
|
|
// GetClassID
|
|
//
|
|
// Part of the persistent file support. We must supply our class id
|
|
// which can be saved in a graph file and used on loading a graph with
|
|
// this fx in it to instantiate this filter via CoCreateInstance.
|
|
//
|
|
HRESULT CDirectSoundFlangerDMO::GetClassID(CLSID *pClsid)
|
|
{
|
|
if (pClsid==NULL) {
|
|
return E_POINTER;
|
|
}
|
|
*pClsid = GUID_DSFX_STANDARD_FLANGER;
|
|
return NOERROR;
|
|
|
|
} // GetClassID
|
|
|