Leaked source code of windows server 2003
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// Copyright (c) 1998-1999 Microsoft Corporation
/*
* Internal function prototypes for DMusic32.dll
*/
#ifndef _DM32P_
#define _DM32P_
#include "..\shared\dmusiccp.h"
#include "tpool.h"
#define THREAD_KILL_TIMEOUT 5000
#define THREAD_WORK_BUFFER_SIZE 4096
#define QWORD_ALIGN(x) (((x) + 7) & ~7)
#define MIDI_CHANNELS 16
/* DevIoctl.c - MMDEVLDR hooks we use
*/
extern BOOL WINAPI OpenMMDEVLDR(void);
extern VOID WINAPI CloseMMDEVLDR(void);
extern VOID WINAPI CloseVxDHandle(DWORD hVxDHandle);
/* From Win32 kernel
*/
extern "C" DWORD WINAPI OpenVxDHandle(HANDLE hEvent);
// 10 ms in 100ns units
//
#define FIXED_LEGACY_LATENCY_OFFSET (10L * 10L * 1000L)
class CEmulateLatencyClock : public IReferenceClock
{
public:
// IUnknown
//
STDMETHODIMP QueryInterface(const IID &iid, void **ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
// IReferenceClock
//
STDMETHODIMP GetTime(REFERENCE_TIME *pTime);
STDMETHODIMP AdviseTime(REFERENCE_TIME baseTime,
REFERENCE_TIME streamTime,
HANDLE hEvent,
DWORD * pdwAdviseCookie);
STDMETHODIMP AdvisePeriodic(REFERENCE_TIME startTime,
REFERENCE_TIME periodTime,
HANDLE hSemaphore,
DWORD * pdwAdviseCookie);
STDMETHODIMP Unadvise(DWORD dwAdviseCookie);
// Class
//
CEmulateLatencyClock(IReferenceClock *pMasterClock);
~CEmulateLatencyClock();
void Close();
private:
long m_cRef;
IReferenceClock *m_pMasterClock;
};
// Struct for holding a property item supported by the synth
//
class CDirectMusicEmulatePort;
typedef HRESULT (CDirectMusicEmulatePort::*GENPROPHANDLER)(ULONG ulId, BOOL fSet, LPVOID pbBuffer, PULONG cbBuffer);
#define GENPROP_F_STATIC 0x00000000
#define GENPROP_F_FNHANDLER 0x00000001
struct GENERICPROPERTY
{
const GUID *pguidPropertySet; // What property set?
ULONG ulId; // What item?
ULONG ulSupported; // Get/Set flags for QuerySupported
ULONG ulFlags; // GENPROP_F_xxx
LPVOID pPropertyData; // Data to be returned
ULONG cbPropertyData; // and its size
GENPROPHANDLER pfnHandler; // Handler fn iff GENPROP_F_FNHANDLER
};
class CDirectMusicEmulatePort :
public IDirectMusicPort,
public IDirectMusicPortP,
public IDirectMusicThru,
public IDirectMusicPortPrivate,
public IKsControl
{
public:
// IUnknown
//
STDMETHODIMP QueryInterface(const IID &iid, void **ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
// IDirectMusicPort
//
STDMETHODIMP PlayBuffer(LPDIRECTMUSICBUFFER pBuffer);
STDMETHODIMP SetReadNotificationHandle(HANDLE hEvent);
STDMETHODIMP Read(LPDIRECTMUSICBUFFER pBuffer);
STDMETHODIMP DownloadInstrument(IDirectMusicInstrument*,
IDirectMusicDownloadedInstrument**,
DMUS_NOTERANGE*,
DWORD);
STDMETHODIMP UnloadInstrument(IDirectMusicDownloadedInstrument*);
STDMETHODIMP GetLatencyClock(IReferenceClock **ppClock);
STDMETHODIMP GetRunningStats(LPDMUS_SYNTHSTATS pStats);
STDMETHODIMP Compact();
STDMETHODIMP GetCaps(LPDMUS_PORTCAPS pPortCaps);
STDMETHODIMP DeviceIoControl(DWORD dwIoControlCode, LPVOID lpInBuffer, DWORD nInBufferSize, LPVOID lpOutBuffer, DWORD nOutBufferSize,
LPDWORD lpBytesReturned, LPOVERLAPPED lpOverlapped);
STDMETHODIMP SetNumChannelGroups(DWORD dwNumChannelGroups);
STDMETHODIMP GetNumChannelGroups(LPDWORD pdwNumChannelGroups);
STDMETHODIMP Activate(BOOL fActivate);
STDMETHODIMP SetChannelPriority(DWORD dwChannelGroup, DWORD dwChannel, DWORD dwPriority);
STDMETHODIMP GetChannelPriority(DWORD dwChannelGroup, DWORD dwChannel, LPDWORD pdwPriority);
STDMETHODIMP SetDirectSound(LPDIRECTSOUND pDirectSound, LPDIRECTSOUNDBUFFER pDirectSoundBuffer);
STDMETHODIMP GetFormat(LPWAVEFORMATEX pWaveFormatEx, LPDWORD pdwWaveFormatExSize, LPDWORD pdwBufferSize);
// IDirectMusicThru
STDMETHODIMP ThruChannel(DWORD dwSourceChannelGroup,
DWORD dwSourceChannel,
DWORD dwDestinationChannelGroup,
DWORD dwDestinationChannel,
LPDIRECTMUSICPORT pDestinationPort);
// IDirectMusicPortP
//
STDMETHODIMP DownloadWave(
IN IDirectSoundWave *pWave,
OUT IDirectSoundDownloadedWaveP **ppWave,
IN REFERENCE_TIME rtStartHint
);
STDMETHODIMP UnloadWave(
IN IDirectSoundDownloadedWaveP *pWave
);
STDMETHODIMP AllocVoice(
IN IDirectSoundDownloadedWaveP *pWave,
IN DWORD dwChannel,
IN DWORD dwChannelGroup,
IN REFERENCE_TIME rtStart,
IN SAMPLE_TIME stLoopStart,
IN SAMPLE_TIME stLoopEnd,
OUT IDirectMusicVoiceP **ppVoice
);
STDMETHODIMP AssignChannelToBuses(
IN DWORD dwChannelGroup,
IN DWORD dwChannel,
IN LPDWORD pdwBuses,
IN DWORD cBusCount
);
STDMETHODIMP SetSink(
IN IDirectSoundConnect *pSinkConnect
);
STDMETHODIMP GetSink(
IN IDirectSoundConnect **ppSinkConnect
);
// IKsControl
STDMETHODIMP KsProperty(
IN PKSPROPERTY Property,
IN ULONG PropertyLength,
IN OUT LPVOID PropertyData,
IN ULONG DataLength,
OUT PULONG BytesReturned
);
STDMETHODIMP KsMethod(
IN PKSMETHOD Method,
IN ULONG MethodLength,
IN OUT LPVOID MethodData,
IN ULONG DataLength,
OUT PULONG BytesReturned
);
STDMETHODIMP KsEvent(
IN PKSEVENT Event,
IN ULONG EventLength,
IN OUT LPVOID EventData,
IN ULONG DataLength,
OUT PULONG BytesReturned
);
// IDirectMusicPortPrivate
STDMETHODIMP Close();
STDMETHODIMP Report();
STDMETHODIMP StartVoice(
DWORD dwVoiceId,
DWORD dwChannel,
DWORD dwChannelGroup,
REFERENCE_TIME rtStart,
DWORD dwDLId,
LONG prPitch,
LONG veVolume,
SAMPLE_TIME stVoiceStart,
SAMPLE_TIME stLoopStart,
SAMPLE_TIME stLoopEnd
);
STDMETHODIMP StopVoice(
DWORD dwVoiceID,
REFERENCE_TIME rtStop
);
STDMETHODIMP GetVoiceState(
DWORD dwVoice[],
DWORD cbVoice,
DMUS_VOICE_STATE VoiceState[]
);
STDMETHODIMP Refresh(
DWORD dwDownloadID,
DWORD dwFlags
);
// Class
//
CDirectMusicEmulatePort(PORTENTRY *pPE, CDirectMusic *pDM);
~CDirectMusicEmulatePort();
HRESULT Init(LPDMUS_PORTPARAMS pPortParams);
HRESULT LegacyCaps(ULONG ulId, BOOL fSet, LPVOID pbBuffer, PULONG cbBuffer);
DWORD InputWorker();
DWORD TimerWorker();
private:
long m_cRef;
UINT m_id;
BOOL m_fIsOutput;
HANDLE m_hDevice;
CDirectMusic *m_pDM;
DWORD m_hVxDEvent;
DMUS_PORTCAPS dmpc;
IReferenceClock *m_pMasterClock;
CEmulateLatencyClock *m_pLatencyClock;
IDirectMusicPortNotify *m_pNotify;
HANDLE m_hAppEvent;
HANDLE m_hDataReady;
HANDLE m_hKillThreads;
HANDLE m_hCaptureThread;
BYTE m_WorkBuffer[THREAD_WORK_BUFFER_SIZE];
DWORD m_dwWorkBufferTileInfo;
DWORD m_p1616WorkBuffer;
EVENT_POOL m_FreeEvents;
EVENT_QUEUE m_ReadEvents;
CRITICAL_SECTION m_csEventQueues;
BOOL m_fCSInitialized;
IDirectMusicBuffer *m_pThruBuffer;
LPDMUS_THRU_CHANNEL m_pThruMap;
long m_lActivated;
BOOL m_fSyncToMaster;
LONGLONG m_lTimeOffset;
private:
static GENERICPROPERTY m_aProperty[];
static const int m_nProperty;
static GENERICPROPERTY *FindPropertyItem(REFGUID rguid, ULONG ulId);
private:
HRESULT InitializeClock();
HRESULT InitializeCapture();
void InputWorkerDataReady();
void ThruEvent(DMEVENT *pEvent);
void MasterToSlave(REFERENCE_TIME *prt);
void SlaveToMaster(REFERENCE_TIME *prt);
void SyncClocks();
};
#endif