DWORD MMDRV_Open	(	LPWINE_MLD	mld,
		UINT	wMsg,
		DWORD_PTR	dwParam1,
		DWORD	dwParam2
	)

Definition at line 195 of file lolvldrv.c.

Referenced by midiInOpen(), midiOutOpen(), midiStreamOpen(), mixerOpen(), MMDRV_Open(), and WAVE_Open().

{
    DWORD       dwRet = MMSYSERR_BADDEVICEID;
    DWORD_PTR       dwInstance;
    WINE_LLTYPE*    llType = &llTypes[mld->type];
    TRACE("(%p, %04x, 0x%08lx, 0x%08x)\n", mld, wMsg, dwParam1, dwFlags);

    mld->dwDriverInstance = (DWORD_PTR)&dwInstance;

    if (mld->uDeviceID == (UINT)-1 || mld->uDeviceID == (UINT16)-1) {
    TRACE("MAPPER mode requested !\n");
    /* check if mapper is supported by type */
    if (llType->bSupportMapper) {
        if (llType->nMapper == -1) {
        /* no driver for mapper has been loaded, try a dumb implementation */
        TRACE("No mapper loaded, doing it by hand\n");
        for (mld->uDeviceID = 0; mld->uDeviceID < llType->wMaxId; mld->uDeviceID++) {
            if ((dwRet = MMDRV_Open(mld, wMsg, dwParam1, dwFlags)) == MMSYSERR_NOERROR) {
            /* to share this function epilog */
            dwInstance = mld->dwDriverInstance;
            break;
            }
        }
        } else {
        mld->uDeviceID = (UINT16)-1;
        mld->mmdIndex = llType->lpMlds[-1].mmdIndex;
        TRACE("Setting mmdIndex to %u\n", mld->mmdIndex);
        dwRet = MMDRV_Message(mld, wMsg, dwParam1, dwFlags);
        }
    }
    } else {
    if (mld->uDeviceID < llType->wMaxId) {
        mld->mmdIndex = llType->lpMlds[mld->uDeviceID].mmdIndex;
        TRACE("Setting mmdIndex to %u\n", mld->mmdIndex);
        dwRet = MMDRV_Message(mld, wMsg, dwParam1, dwFlags);
    }
    }
    if (dwRet == MMSYSERR_NOERROR)
    mld->dwDriverInstance = dwInstance;
    return dwRet;
}

ReactOS Development > Doxygen