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winemm.h

/*
 * Copyright 1998, Luiz Otavio L. Zorzella
 *           1999, Eric Pouech
 *
 * Purpose:   multimedia declarations (internal to WINMM & MMSYSTEM DLLs)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>

#include "windef.h"
#include "winbase.h"
#include "mmddk.h"

#define WINE_DEFAULT_WINMM_DRIVER     "alsa,oss,coreaudio,esd"
#define WINE_DEFAULT_WINMM_MAPPER     "msacm32.drv"
#define WINE_DEFAULT_WINMM_MIDI       "midimap.dll"

/* Who said goofy boy ? */
#define     WINE_DI_MAGIC     0x900F1B01

typedef struct tagWINE_DRIVER
{
    DWORD               dwMagic;
    /* as usual LPWINE_DRIVER == hDriver32 */
    DWORD               dwFlags;
    HMODULE             hModule;
    DRIVERPROC                lpDrvProc;
    DWORD_PTR                 dwDriverID;
    struct tagWINE_DRIVER*    lpPrevItem;
    struct tagWINE_DRIVER*    lpNextItem;
} WINE_DRIVER, *LPWINE_DRIVER;

typedef     DWORD (CALLBACK *WINEMM_msgFunc32)(UINT, UINT, DWORD_PTR, DWORD_PTR, DWORD_PTR);

/* for each loaded driver and each known type of driver, this structure contains
 * the information needed to access it
 */
typedef struct tagWINE_MM_DRIVER_PART {
    int                       nIDMin;           /* lower bound of global indexes for this type */
    int                       nIDMax;           /* hhigher bound of global indexes for this type */
    WINEMM_msgFunc32            fnMessage32;    /* pointer to function */
} WINE_MM_DRIVER_PART;

#define     MMDRV_AUX         0
#define     MMDRV_MIXER       1
#define     MMDRV_MIDIIN            2
#define     MMDRV_MIDIOUT           3
#define     MMDRV_WAVEIN            4
#define     MMDRV_WAVEOUT           5
#define MMDRV_MAX       6

/* each low-level .drv will be associated with an instance of this structure */
typedef struct tagWINE_MM_DRIVER {
    HDRVR               hDriver;
    LPSTR               drvname;    /* name of the driver */
    unsigned                  bIsMapper : 1;    /* TRUE if mapper */
    WINE_MM_DRIVER_PART       parts[MMDRV_MAX];/* Information for all known types */
} WINE_MM_DRIVER, *LPWINE_MM_DRIVER;

typedef struct tagWINE_MLD {
/* EPP struct tagWINE_MLD*    lpNext; */        /* not used so far */
       UINT             uDeviceID;
       UINT             type;
       UINT             mmdIndex;         /* index to low-level driver in MMDrvs table */
       DWORD_PTR        dwDriverInstance; /* this value is driver related, as opposed to
                                           * opendesc.dwInstance which is client (callback) related */
       WORD             dwFlags;
       DWORD_PTR        dwCallback;
       DWORD_PTR        dwClientInstance;
} WINE_MLD, *LPWINE_MLD;

typedef struct  {
       WINE_MLD               mld;
} WINE_WAVE, *LPWINE_WAVE;

typedef struct {
       WINE_MLD               mld;
       MIDIOPENDESC           mod;              /* FIXME: should be removed */
} WINE_MIDI, *LPWINE_MIDI;

typedef struct {
       WINE_MLD               mld;
} WINE_MIXER, *LPWINE_MIXER;

typedef struct tagWINE_MCIDRIVER {
        UINT                  wDeviceID;
        UINT                  wType;
      LPWSTR                  lpstrElementName;
        LPWSTR                lpstrDeviceType;
        LPWSTR                lpstrAlias;
        HDRVR                 hDriver;
        DWORD_PTR               dwPrivate;
        YIELDPROC       lpfnYieldProc;
        DWORD                     dwYieldData;
        DWORD                   CreatorThread;
        UINT                  uTypeCmdTable;
        UINT                  uSpecificCmdTable;
        struct tagWINE_MCIDRIVER*lpNext;
} WINE_MCIDRIVER, *LPWINE_MCIDRIVER;

struct IOProcList
{
    struct IOProcList*pNext;       /* Next item in linked list */
    FOURCC            fourCC;      /* four-character code identifying IOProc */
    LPMMIOPROC          pIOProc;     /* pointer to IProc */
    BOOL              is_unicode;  /* 32A or 32W */
    int                 count;         /* number of objects linked to it */
};

typedef struct tagWINE_MMIO {
    MMIOINFO                  info;
    struct tagWINE_MMIO*      lpNext;
    struct IOProcList*        ioProc;
    unsigned                  bTmpIOProc : 1,
                                bBufferLoaded : 1;
    DWORD                       dwFileSize;
} WINE_MMIO, *LPWINE_MMIO;

/* function prototypes */

LPWINE_DRIVER     DRIVER_FindFromHDrvr(HDRVR hDrvr);
BOOL        DRIVER_GetLibName(LPCWSTR keyName, LPCWSTR sectName, LPWSTR buf, int sz);
LPWINE_DRIVER     DRIVER_TryOpenDriver32(LPCWSTR fn, LPARAM lParam2);
void            DRIVER_UnloadAll(void);

BOOL        MMDRV_Init(void);
void            MMDRV_Exit(void);
UINT        MMDRV_GetNum(UINT);
LPWINE_MLD  MMDRV_Alloc(UINT size, UINT type, LPHANDLE hndl, DWORD* dwFlags,
                            DWORD_PTR* dwCallback, DWORD_PTR* dwInstance);
void        MMDRV_Free(HANDLE hndl, LPWINE_MLD mld);
DWORD       MMDRV_Open(LPWINE_MLD mld, UINT wMsg, DWORD_PTR dwParam1, DWORD dwParam2);
DWORD       MMDRV_Close(LPWINE_MLD mld, UINT wMsg);
LPWINE_MLD  MMDRV_Get(HANDLE hndl, UINT type, BOOL bCanBeID);
LPWINE_MLD  MMDRV_GetRelated(HANDLE hndl, UINT srcType, BOOL bSrcCanBeID, UINT dstTyped);
DWORD           MMDRV_Message(LPWINE_MLD mld, UINT wMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2);
UINT        MMDRV_PhysicalFeatures(LPWINE_MLD mld, UINT uMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2);

const char*       MCI_MessageToString(UINT wMsg);
DWORD           MCI_SendCommand(UINT wDevID, UINT16 wMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2);
LPWSTR          MCI_strdupAtoW(LPCSTR str);
LPSTR           MCI_strdupWtoA(LPCWSTR str);

const char*     WINMM_ErrorToString(MMRESULT error);

void        TIME_MMTimeStop(void);

/* Global variables */
extern CRITICAL_SECTION WINMM_cs;
extern HINSTANCE hWinMM32Instance;
extern HANDLE psLastEvent;
extern HANDLE psStopEvent;

/* GetDriverFlags() returned bits is not documented (nor the call itself)
 * Here are Wine only definitions of the bits
 */
#define WINE_GDF_EXIST          0x80000000
#define WINE_GDF_EXTERNAL_MASK  0xF0000000
#define WINE_GDF_SESSION        0x00000001

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