109 lines
5.6 KiB
C
109 lines
5.6 KiB
C
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// Copyright (c) 1996-1999 Microsoft Corporation
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//
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// CSynth.h
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//
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#ifndef __CSYNTH_H__
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#define __CSYNTH_H__
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#include "synth.h"
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#define MAX_CHANNEL_GROUPS 1000
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#define MAX_VOICES 1000
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// Forward declarations
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struct IDirectSoundSynthSink;
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class CSynth : public CListItem
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{
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friend class CControlLogic;
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public:
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CSynth();
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~CSynth();
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CSynth * GetNext() {return(CSynth *)CListItem::GetNext();};
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HRESULT SetStereoMode(DWORD dwBufferFlags);
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HRESULT SetSampleRate(DWORD dwSampleRate);
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HRESULT Activate(DWORD dwSampleRate, DWORD dwBufferFlags);
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HRESULT Deactivate();
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HRESULT Download(LPHANDLE phDownload, void *pdwData, LPBOOL bpFree);
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HRESULT Unload(HANDLE hDownload,HRESULT ( CALLBACK *lpFreeMemory)(HANDLE,HANDLE),HANDLE hUserData);
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HRESULT PlayBuffer(IDirectMusicSynthSink *pSynthSink, REFERENCE_TIME rt, LPBYTE lpBuffer, DWORD cbBuffer, ULONG ulCable);
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HRESULT SetNumChannelGroups(DWORD dwCableCount);
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void SetGainAdjust(VREL vrGainAdjust);
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HRESULT Open(DWORD dwCableCount, DWORD dwVoices, BOOL fReverb);
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HRESULT Close();
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void ResetPerformanceStats();
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HRESULT AllNotesOff();
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HRESULT SetMaxVoices(short nMaxVoices,short nTempVoices);
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HRESULT GetMaxVoices(short *pnMaxVoices,short *pnTempVoices);
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HRESULT GetPerformanceStats(PerfStats *pStats);
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void Mix(short **ppvBuffer, DWORD *pdwIDs, DWORD *pdwFuncIDs, long *plPitchBends, DWORD dwBufferCount, DWORD dwBufferFlags, DWORD dwLength, LONGLONG llPosition);
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HRESULT SetChannelPriority(DWORD dwChannelGroup,DWORD dwChannel,DWORD dwPriority);
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HRESULT GetChannelPriority(DWORD dwChannelGroup,DWORD dwChannel,LPDWORD pdwPriority);
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HRESULT SetReverb(DMUS_WAVES_REVERB_PARAMS *pParams);
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void GetReverb(DMUS_WAVES_REVERB_PARAMS *pParams);
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void SetReverbActive(BOOL fReverb);
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BOOL IsReverbActive();
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/* DirectX8 methods */
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HRESULT PlayBuffer(STIME stTime, REFERENCE_TIME rt, LPBYTE lpBuffer, DWORD cbBuffer, ULONG ulCable);
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HRESULT PlayBuffer(IDirectSoundSynthSink *pSynthSink, REFERENCE_TIME rt, LPBYTE lpBuffer, DWORD cbBuffer, ULONG ulCable);
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HRESULT PlayVoice(IDirectSoundSynthSink *pSynthSink, REFERENCE_TIME rt, DWORD dwVoiceId, DWORD dwChannelGroup, DWORD dwChannel, DWORD dwDLId, VREL vrVolume, PREL prPitch, SAMPLE_TIME stVoiceStart, SAMPLE_TIME stLoopStart, SAMPLE_TIME stLoopEnd);
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HRESULT StopVoice(IDirectSoundSynthSink *pSynthSink, REFERENCE_TIME rt, DWORD dwVoiceId);
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HRESULT GetVoiceState(DWORD dwVoice[], DWORD cbVoice, DMUS_VOICE_STATE VoiceState[]);
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HRESULT Refresh(DWORD dwDownloadID, DWORD dwFlags);
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HRESULT AssignChannelToBuses(DWORD dwChannelGroup, DWORD dwChannel, LPDWORD pdwBusses, DWORD cBusses);
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public:
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bool BusIDToFunctionID(DWORD dwBusID, DWORD *pdwFunctionID, long *plPitchBends, DWORD *pdwIndex); // Converts the passed bus id into the equivalent function id and position in buffer array.
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private:
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void StealNotes(STIME stTime);
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void StartMix(short *pBuffer,DWORD dwlength,BOOL bInterleaved);
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void FinishMix(short *pBuffer,DWORD dwlength,BOOL bInterleaved);
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short ChangeVoiceCount(CVoiceList *pList,short nOld,short nCount);
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private:
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DWORD * m_pdwBusIDs; // Temp pointer to array of bus ids. This is valid only during a mix.
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DWORD * m_pdwFuncIDs; // Temp pointer to array of corresponding functional ids. This is also only valid during a mix.
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long * m_plPitchBends; // Temp pointer to array of corresponding pitch offsets.
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DWORD m_dwBufferCount; // Size of two preceding arrays.
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CVoice * OldestVoice();
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void QueueVoice(CVoice *pVoice);
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CVoice * StealVoice(DWORD dwPriority);
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STIME m_stLastTime; // Sample time of last mix.
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CVoiceList m_VoicesFree; // List of available voices.
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CVoiceList m_VoicesExtra; // Extra voices for temporary overload.
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CVoiceList m_VoicesInUse; // List of voices currently in use.
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short m_nMaxVoices; // Number of allowed voices.
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short m_nExtraVoices; // Number of voices over the limit that can be used in a pinch.
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STIME m_stLastStats; // Last perfstats refresh.
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PerfStats m_BuildStats; // Performance info accumulator.
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PerfStats m_CopyStats; // Performance information for display.
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BOOL m_fReverbActive; // Whether reverb is currently on or off.
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long * m_pStates; // State storage for reverb.
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void * m_pCoefs; // Coeeficient storage for reverb.
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DMUS_WAVES_REVERB_PARAMS m_ReverbParams; // Reverb settings.
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public:
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VREL m_vrGainAdjust; // Final output gain adjust
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// DLS-1 compatibility parameters: set these off to emulate hardware
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// which can't vary volume/pan during playing of a note.
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BOOL m_fAllowPanWhilePlayingNote;
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BOOL m_fAllowVolumeChangeWhilePlayingNote;
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STIME m_stMinSpan; // Minimum time allowed for mix time span.
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STIME m_stMaxSpan; // Maximum time allowed for mix time span.
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DWORD m_dwSampleRate; // Sample rate
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DWORD m_dwStereo; // Is the output stereo
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CInstManager m_Instruments; // Instrument manager.
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CControlLogic **m_ppControl; // Array of open ControlLogics.
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DWORD m_dwControlCount; // # of open CLs.
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CRITICAL_SECTION m_CriticalSection; // Critical section to manage access.
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BOOL m_fCSInitialized;
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BOOL m_sfMMXEnabled; // Is MMX enabled
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};
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#endif// __CSYNTH_H__
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