windows-nt/Source/XPSP1/NT/multimedia/media/mmdrv/mmdrv.h

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2020-09-26 03:20:57 -05:00
/****************************************************************************
*
* mmdrv.h
*
* Multimedia kernel driver support component (mmdrv)
*
* Copyright (c) 1991-1998 Microsoft Corporation
*
* Local declarations :
*
* -- Debug
* -- Device types
* -- Routine prototypes
*
* History
* 01-Feb-1992 - Robin Speed (RobinSp) wrote it
*
***************************************************************************/
/****************************************************************************
General includes
***************************************************************************/
#define UNICODE
#ifndef RC_INVOKED
#include <string.h>
#include <stdio.h>
#endif /* RC_INVOKED */
#include <windows.h>
#include <mmsystem.h>
#include <devioctl.h>
#include <mmddk.h>
#if DBG
#define STATIC
#else
#define STATIC
#endif
/***************************************************************************
DEBUGGING SUPPORT
***************************************************************************/
#if DBG
#define DEBUG_RETAIL
extern int mmdrvDebugLevel;
extern void mmdrvDbgOut(LPSTR lpszFormat, ...);
extern void dDbgAssert(LPSTR exp, LPSTR file, int line);
DWORD __dwEval;
#define dprintf( _x_ ) mmdrvDbgOut _x_
#define dprintf1( _x_ ) if (mmdrvDebugLevel >= 1) mmdrvDbgOut _x_
#define dprintf2( _x_ ) if (mmdrvDebugLevel >= 2) mmdrvDbgOut _x_
#define dprintf3( _x_ ) if (mmdrvDebugLevel >= 3) mmdrvDbgOut _x_
#define dprintf4( _x_ ) if (mmdrvDebugLevel >= 4) mmdrvDbgOut _x_
#define WinAssert(exp) \
((exp) ? (void)0 : dDbgAssert(#exp, __FILE__, __LINE__))
#define WinEval(exp) \
((__dwEval=(DWORD)(exp)) ? (void)0 : dDbgAssert(#exp, __FILE__, __LINE__), __dwEval)
#else
#define WinAssert(x) 0
#define WinEval(exp) exp
#define dprintf(x)
#define dprintf1(x)
#define dprintf2(x)
#define dprintf3(x)
#define dprintf4(x)
#endif
/****************************************************************************
Device Types
***************************************************************************/
enum {
InvalidDevice,
WaveInDevice,
WaveOutDevice,
MidiInDevice,
MidiOutDevice,
AuxDevice
};
/****************************************************************************
Our heap
****************************************************************************/
HANDLE hHeap;
/****************************************************************************
Our serialization
****************************************************************************/
CRITICAL_SECTION mmDrvCritSec; // Serialize access to device lists
/****************************************************************************
Local routines
***************************************************************************/
DWORD sndTranslateStatus(void);
MMRESULT sndOpenDev(UINT DeviceType, DWORD dwId,
PHANDLE phDev, DWORD Access);
DWORD sndGetNumDevs(UINT DeviceType);
MMRESULT sndSetData(UINT DeviceType, UINT DeviceId, UINT Length, PBYTE Data,
ULONG Ioctl);
MMRESULT sndGetData(UINT DeviceType, UINT DeviceId, UINT Length, PBYTE Data,
ULONG Ioctl);
MMRESULT sndGetHandleData(HANDLE hDev,
DWORD dwSize,
PVOID pData,
ULONG Ioctl,
HANDLE hEvent);
MMRESULT sndSetHandleData(HANDLE hDev,
DWORD dwSize,
PVOID pData,
ULONG Ioctl,
HANDLE hEvent);
VOID TerminateWave(VOID);
VOID TerminateMidi(VOID);
/****************************************************************************
Our local driver procs
****************************************************************************/
DWORD APIENTRY widMessage(DWORD, DWORD, DWORD_PTR, DWORD_PTR, DWORD_PTR);
DWORD APIENTRY wodMessage(DWORD, DWORD, DWORD_PTR, DWORD_PTR, DWORD_PTR);
DWORD APIENTRY midMessage(DWORD, DWORD, DWORD_PTR, DWORD_PTR, DWORD_PTR);
DWORD APIENTRY modMessage(DWORD, DWORD, DWORD_PTR, DWORD_PTR, DWORD_PTR);