message16.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

    case WODM_CLOSE:
    case WODM_GETNUMDEVS:
    case WODM_PAUSE:
    case WODM_RESET:
    case WODM_RESTART:
    case WODM_SETPITCH:
    case WODM_SETPLAYBACKRATE:
    case WODM_SETVOLUME:
	ret = WINMM_MAP_OK;
	break;

    case WODM_GETPITCH:
    case WODM_GETPLAYBACKRATE:
    case WODM_GETVOLUME:
    case WODM_OPEN:
	FIXME("Shouldn't be used: the corresponding 16 bit functions use the 32 bit interface\n");
	break;

    case WODM_GETDEVCAPS:
	{
            LPWAVEOUTCAPSW		woc32 = HeapAlloc(GetProcessHeap(), 0, sizeof(LPWAVEOUTCAPS16) + sizeof(WAVEOUTCAPSW));
	    LPWAVEOUTCAPS16		woc16 = MapSL(*lpParam1);

	    if (woc32) {
		*(LPWAVEOUTCAPS16*)woc32 = woc16;
		woc32 = (LPWAVEOUTCAPSW)((LPSTR)woc32 + sizeof(LPWAVEOUTCAPS16));
		*lpParam1 = (DWORD)woc32;
		*lpParam2 = sizeof(WAVEOUTCAPSW);

		ret = WINMM_MAP_OKMEM;
	    } else {
		ret = WINMM_MAP_NOMEM;
	    }
	}
	break;
    case WODM_GETPOS:
	{
            LPMMTIME		mmt32 = HeapAlloc(GetProcessHeap(), 0, sizeof(LPMMTIME16) + sizeof(MMTIME));
	    LPMMTIME16		mmt16 = MapSL(*lpParam1);

	    if (mmt32) {
		*(LPMMTIME16*)mmt32 = mmt16;
		mmt32 = (LPMMTIME)((LPSTR)mmt32 + sizeof(LPMMTIME16));

		mmt32->wType = mmt16->wType;
		*lpParam1 = (DWORD)mmt32;
		*lpParam2 = sizeof(MMTIME);

		ret = WINMM_MAP_OKMEM;
	    } else {
		ret = WINMM_MAP_NOMEM;
	    }
	}
	break;
    case WODM_PREPARE:
	{
	    LPWAVEHDR		wh32 = HeapAlloc(GetProcessHeap(), 0, sizeof(LPWAVEHDR) + sizeof(WAVEHDR));
	    LPWAVEHDR		wh16 = MapSL(*lpParam1);

	    if (wh32) {
		*(LPWAVEHDR*)wh32 = (LPWAVEHDR)*lpParam1;
		wh32 = (LPWAVEHDR)((LPSTR)wh32 + sizeof(LPWAVEHDR));
		wh32->lpData = MapSL((SEGPTR)wh16->lpData);
		wh32->dwBufferLength = wh16->dwBufferLength;
		wh32->dwBytesRecorded = wh16->dwBytesRecorded;
		wh32->dwUser = wh16->dwUser;
		wh32->dwFlags = wh16->dwFlags;
		wh32->dwLoops = wh16->dwLoops;
		/* FIXME: nothing on wh32->lpNext */
		/* could link the wh32->lpNext at this level for memory house keeping */
		wh16->lpNext = wh32; /* for reuse in unprepare and write */
		*lpParam1 = (DWORD)wh32;
		*lpParam2 = sizeof(WAVEHDR);

		ret = WINMM_MAP_OKMEM;
	    } else {
		ret = WINMM_MAP_NOMEM;
	    }
	}
	break;
    case WODM_UNPREPARE:
    case WODM_WRITE:
	{
	    LPWAVEHDR		wh16 = MapSL(*lpParam1);
	    LPWAVEHDR		wh32 = (LPWAVEHDR)wh16->lpNext;

	    *lpParam1 = (DWORD)wh32;
	    *lpParam2 = sizeof(WAVEHDR);
	    /* dwBufferLength can be reduced between prepare & write */
	    if (wMsg == WODM_WRITE && wh32->dwBufferLength < wh16->dwBufferLength) {
		ERR("Size of buffer has been increased from %ld to %ld, keeping initial value\n",
		    wh32->dwBufferLength, wh16->dwBufferLength);
	    } else
                wh32->dwBufferLength = wh16->dwBufferLength;
	    ret = WINMM_MAP_OKMEM;
	}
	break;
    case WODM_MAPPER_STATUS:
	*lpParam2 = (DWORD)MapSL(*lpParam2);
	ret = WINMM_MAP_OK;
	break;
    default:
	FIXME("NIY: no conversion yet for %u [%lx,%lx]\n", wMsg, *lpParam1, *lpParam2);
	break;
    }
    return ret;
}

/**************************************************************************
 * 				MMDRV_WaveOut_UnMap16To32W	[internal]
 */
static  WINMM_MapType	MMDRV_WaveOut_UnMap16To32W(UINT wMsg, LPDWORD lpdwUser, LPDWORD lpParam1, LPDWORD lpParam2, MMRESULT fn_ret)
{
    WINMM_MapType	ret = WINMM_MAP_MSGERROR;

    switch (wMsg) {
    /* nothing to do */
    case WODM_BREAKLOOP:
    case WODM_CLOSE:
    case WODM_GETNUMDEVS:
    case WODM_PAUSE:
    case WODM_RESET:
    case WODM_RESTART:
    case WODM_SETPITCH:
    case WODM_SETPLAYBACKRATE:
    case WODM_SETVOLUME:
    case WODM_MAPPER_STATUS:
	ret = WINMM_MAP_OK;
	break;

    case WODM_GETPITCH:
    case WODM_GETPLAYBACKRATE:
    case WODM_GETVOLUME:
    case WODM_OPEN:
	FIXME("Shouldn't be used: those 16 bit functions use the 32 bit interface\n");
	break;

    case WODM_GETDEVCAPS:
	{
            LPWAVEOUTCAPSW		woc32 = (LPWAVEOUTCAPSW)(*lpParam1);
	    LPWAVEOUTCAPS16		woc16 = *(LPWAVEOUTCAPS16*)((LPSTR)woc32 - sizeof(LPWAVEOUTCAPS16));

	    woc16->wMid = woc32->wMid;
	    woc16->wPid = woc32->wPid;
	    woc16->vDriverVersion = woc32->vDriverVersion;
            WideCharToMultiByte( CP_ACP, 0, woc32->szPname, -1, woc16->szPname,
                                 sizeof(woc16->szPname), NULL, NULL );
	    woc16->dwFormats = woc32->dwFormats;
	    woc16->wChannels = woc32->wChannels;
	    woc16->dwSupport = woc32->dwSupport;
	    HeapFree(GetProcessHeap(), 0, (LPSTR)woc32 - sizeof(LPWAVEOUTCAPS16));
	    ret = WINMM_MAP_OK;
	}
	break;
    case WODM_GETPOS:
	{
            LPMMTIME		mmt32 = (LPMMTIME)(*lpParam1);
	    LPMMTIME16		mmt16 = *(LPMMTIME16*)((LPSTR)mmt32 - sizeof(LPMMTIME16));

	    MMSYSTEM_MMTIME32to16(mmt16, mmt32);
	    HeapFree(GetProcessHeap(), 0, (LPSTR)mmt32 - sizeof(LPMMTIME16));
	    ret = WINMM_MAP_OK;
	}
	break;
    case WODM_PREPARE:
    case WODM_UNPREPARE:
    case WODM_WRITE:
	{
	    LPWAVEHDR		wh32 = (LPWAVEHDR)(*lpParam1);
	    LPWAVEHDR		wh16 = MapSL(*(SEGPTR*)((LPSTR)wh32 - sizeof(LPWAVEHDR)));

	    assert(wh16->lpNext == wh32);
	    wh16->dwBufferLength = wh32->dwBufferLength;
	    wh16->dwBytesRecorded = wh32->dwBytesRecorded;
	    wh16->dwUser = wh32->dwUser;
	    wh16->dwFlags = wh32->dwFlags;
	    wh16->dwLoops = wh32->dwLoops;

	    if (wMsg == WODM_UNPREPARE && fn_ret == MMSYSERR_NOERROR) {
		HeapFree(GetProcessHeap(), 0, (LPSTR)wh32 - sizeof(LPWAVEHDR));
		wh16->lpNext = 0;
	    }
	    ret = WINMM_MAP_OK;
	}
	break;
    default:
	FIXME("NIY: no conversion yet for %u [%lx,%lx]\n", wMsg, *lpParam1, *lpParam2);
	break;
    }
    return ret;
}

/**************************************************************************
 * 				MMDRV_WaveOut_Map32WTo16	[internal]
 */
static  WINMM_MapType	MMDRV_WaveOut_Map32WTo16  (UINT wMsg, LPDWORD lpdwUser, LPDWORD lpParam1, LPDWORD lpParam2)
{
    WINMM_MapType	ret;

    switch (wMsg) {
	/* nothing to do */
    case WODM_BREAKLOOP:
    case WODM_CLOSE:
    case WODM_GETNUMDEVS:
    case WODM_PAUSE:
    case WODM_RESET:
    case WODM_RESTART:
    case WODM_SETPITCH:
    case WODM_SETPLAYBACKRATE:
    case WODM_SETVOLUME:
	ret = WINMM_MAP_OK;
	break;

    case WODM_GETDEVCAPS:
	{
            LPWAVEOUTCAPSW woc32 = (LPWAVEOUTCAPSW)*lpParam1;
            LPSTR ptr = HeapAlloc( GetProcessHeap(), 0,
                                   sizeof(LPWAVEOUTCAPSW) + sizeof(WAVEOUTCAPS16));

	    if (ptr) {
		*(LPWAVEOUTCAPSW*)ptr = woc32;
		ret = WINMM_MAP_OKMEM;
	    } else {
		ret = WINMM_MAP_NOMEM;
	    }
	    *lpParam1 = MapLS(ptr) + sizeof(LPWAVEOUTCAPSW);
	    *lpParam2 = sizeof(WAVEOUTCAPS16);
	}
	break;
    case WODM_GETPITCH:
	FIXME("NIY: no conversion yet\n");
	ret = WINMM_MAP_MSGERROR;
	break;
    case WODM_GETPLAYBACKRATE:
	FIXME("NIY: no conversion yet\n");
	ret = WINMM_MAP_MSGERROR;
	break;
    case WODM_GETPOS:
	{
            LPMMTIME mmt32 = (LPMMTIME)*lpParam1;
            LPSTR ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(LPMMTIME) + sizeof(MMTIME16));
            LPMMTIME16 mmt16 = (LPMMTIME16)(ptr + sizeof(LPMMTIME));

	    if (ptr) {
		*(LPMMTIME*)ptr = mmt32;
		mmt16->wType = mmt32->wType;
		ret = WINMM_MAP_OKMEM;
	    } else {
		ret = WINMM_MAP_NOMEM;
	    }
	    *lpParam1 = MapLS(ptr) + sizeof(LPMMTIME);
	    *lpParam2 = sizeof(MMTIME16);
	}
	break;
    case WODM_GETVOLUME:
	FIXME("NIY: no conversion yet\n");
	ret = WINMM_MAP_MSGERROR;
	break;
    case WODM_OPEN:
	{
            LPWAVEOPENDESC		wod32 = (LPWAVEOPENDESC)*lpParam1;
	    int				sz = sizeof(WAVEFORMATEX);
	    LPVOID			ptr;
	    LPWAVEOPENDESC16		wod16;

	    /* allocated data are mapped as follows:
	       LPWAVEOPENDESC	ptr to orig lParam1
	       DWORD		orig dwUser, which is a pointer to DWORD:driver dwInstance
	       DWORD		dwUser passed to driver
	       WAVEOPENDESC16	wod16: openDesc passed to driver
	       WAVEFORMATEX	openDesc->lpFormat passed to driver
	       xxx		extra bytes to WAVEFORMATEX
	    */
	    if (wod32->lpFormat->wFormatTag != WAVE_FORMAT_PCM) {
		TRACE("Allocating %u extra bytes (%d)\n", ((LPWAVEFORMATEX)wod32->lpFormat)->cbSize, wod32->lpFormat->wFormatTag);
		sz += ((LPWAVEFORMATEX)wod32->lpFormat)->cbSize;
	    }

	    ptr = HeapAlloc( GetProcessHeap(), 0,
                             sizeof(LPWAVEOPENDESC) + 2*sizeof(DWORD) + sizeof(WAVEOPENDESC16) + sz);

	    if (ptr) {
                SEGPTR seg_ptr = MapLS( ptr );
		*(LPWAVEOPENDESC*)ptr = wod32;
		*(LPDWORD)((char*)ptr + sizeof(LPWAVEOPENDESC)) = *lpdwUser;
		wod16 = (LPWAVEOPENDESC16)((LPSTR)ptr + sizeof(LPWAVEOPENDESC) + 2*sizeof(DWORD));

		wod16->hWave = HWAVE_16(wod32->hWave);
		wod16->lpFormat = (LPWAVEFORMATEX)(seg_ptr + sizeof(LPWAVEOPENDESC) + 2*sizeof(DWORD) + sizeof(WAVEOPENDESC16));
		memcpy(wod16 + 1, wod32->lpFormat, sz);

		wod16->dwCallback = wod32->dwCallback;
		wod16->dwInstance = wod32->dwInstance;
		wod16->uMappedDeviceID = wod32->uMappedDeviceID;
		wod16->dnDevNode = wod32->dnDevNode;

		*lpParam1 = seg_ptr + sizeof(LPWAVEOPENDESC) + 2*sizeof(DWORD);
		*lpdwUser = seg_ptr + sizeof(LPWAVEOPENDESC) + sizeof(DWORD);

		ret = WINMM_MAP_OKMEM;
	    } else {
		ret = WINMM_MAP_NOMEM;
	    }
	}
	break;
    case WODM_PREPARE:
	{
	    LPWAVEHDR		wh32 = (LPWAVEHDR)*lpParam1;
	    LPWAVEHDR		wh16;
	    LPVOID ptr = HeapAlloc( GetProcessHeap(), 0,
                                    sizeof(LPWAVEHDR) + sizeof(WAVEHDR) + wh32->dwBufferLength);

	    if (ptr) {
                SEGPTR seg_ptr = MapLS( ptr );
		*(LPWAVEHDR*)ptr = wh32;
		wh16 = (LPWAVEHDR)((LPSTR)ptr + sizeof(LPWAVEHDR));
		wh16->lpData = (LPSTR)seg_ptr + sizeof(LPWAVEHDR) + sizeof(WAVEHDR);
		/* data will be copied on WODM_WRITE */
		wh16->dwBufferLength = wh32->dwBufferLength;
		wh16->dwBytesRecorded = wh32->dwBytesRecorded;
		wh16->dwUser = wh32->dwUser;
		wh16->dwFlags = wh32->dwFlags;
		wh16->dwLoops = wh32->dwLoops;
		/* FIXME: nothing on wh32->lpNext */
		/* could link the wh32->lpNext at this level for memory house keeping */
		wh32->lpNext = wh16; /* for reuse in unprepare and write */
		TRACE("wh16=%08lx wh16->lpData=%08lx wh32->buflen=%lu wh32->lpData=%08lx\n",
		      seg_ptr + sizeof(LPWAVEHDR), (DWORD)wh16->lpData,
		      wh32->dwBufferLength, (DWORD)wh32->lpData);
		*lpParam1 = seg_ptr + sizeof(LPWAVEHDR);
		*lpParam2 = sizeof(WAVEHDR);

		ret = WINMM_MAP_OKMEM;
	    } else {
		ret = WINMM_MAP_NOMEM;
	    }
	}
	break;
    case WODM_UNPREPARE:
    case WODM_WRITE:
	{
	    LPWAVEHDR		wh32 = (LPWAVEHDR)(*lpParam1);
	    LPWAVEHDR		wh16 = wh32->lpNext;
	    LPSTR		ptr = (LPSTR)wh16 - sizeof(LPWAVEHDR);
            SEGPTR seg_ptr = MapLS( ptr );

	    assert(*(LPWAVEHDR*)ptr == wh32);

	    TRACE("wh16=%08lx wh16->lpData=%08lx wh32->buflen=%lu wh32->lpData=%08lx\n",
		  seg_ptr + sizeof(LPWAVEHDR), (DWORD)wh16->lpData,
		  wh32->dwBufferLength, (DWORD)wh32->lpData);

	    if (wMsg == WODM_WRITE)
		memcpy((LPSTR)wh16 + sizeof(WAVEHDR), wh32->lpData, wh32->dwBufferLength);

	    *lpParam1 = seg_ptr + sizeof(LPWAVEHDR);
	    *lpParam2 = sizeof(WAVEHDR);
	    /* dwBufferLength can be reduced between prepare & write */
	    if (wMsg == WODM_WRITE && wh16->dwBufferLength < wh32->dwBufferLength) {
		ERR("Size of buffer has been increased from %ld to %ld, keeping initial value\n",
		    wh16->dwBufferLength, wh32->dwBufferLength);
	    } else
                wh16->dwBufferLength = wh32->dwBufferLength;
	    ret = WINMM_MAP_OKMEM;
	}
	break;
    case DRVM_MAPPER_STATUS:
 	{
            LPDWORD p32 = (LPDWORD)*lpParam2;
            *lpParam2 = MapLS(p32);
            ret = WINMM_MAP_OKMEM;
	}
	break;
    default:
	FIXME("NIY: no conversion yet\n");
	ret = WINMM_MAP_MSGERROR;
	break;
    }
    return ret;
}

/**************************************************************************
 * 				MMDRV_WaveOut_UnMap32WTo16	[internal]
 */
static  WINMM_MapType	MMDRV_WaveOut_UnMap32WTo16(UINT wMsg, LPDWORD lpdwUser, LPDWORD lpParam1, LPDWORD lpParam2, MMRESULT fn_ret)
{
    WINMM_MapType	ret;

    switch (wMsg) {
	/* nothing to do */
    case WODM_BREAKLOOP:
    case WODM_CLOSE:
    case WODM_GETNUMDEVS:
    case WODM_PAUSE:
    case WODM_RESET:
    case WODM_RESTART:
    case WODM_SETPITCH:
    case WODM_SETPLAYBACKRATE:
    case WODM_SETVOLUME:
	ret = WINMM_MAP_OK;
	break;