PWINE_ACMLOCALDRIVERINST MSACM_OpenLocalDriver(PWINE_ACMLOCALDRIVER paldrv, LPARAM lParam2)
{
PWINE_ACMLOCALDRIVERINST pDrvInst;
pDrvInst = HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMLOCALDRIVERINST));
if (!pDrvInst)
return NULL;
pDrvInst->pLocalDriver = paldrv;
pDrvInst->dwDriverID = 0;
pDrvInst->pNextACMInst = NULL;
pDrvInst->bSession = FALSE;
/* Win32 installable drivers must support a two phase opening scheme:
* + first open with NULL as lParam2 (session instance),
* + then do a second open with the real non null lParam2)
*/
if (MSACM_GetNumberOfModuleRefs(paldrv->hModule, paldrv->lpDrvProc, NULL) == 0 && lParam2)
{
PWINE_ACMLOCALDRIVERINST ret;
if (!MSACM_AddToList(pDrvInst, 0L))
{
ERR("load0 failed\n");
goto exit;
}
ret = MSACM_OpenLocalDriver(paldrv, lParam2);
if (!ret)
{
ERR("load1 failed\n");
/* If MSACM_CloseLocalDriver returns TRUE,
* then pDrvInst has been freed
*/
if (!MSACM_CloseLocalDriver(pDrvInst))
goto exit;
return NULL;
}
pDrvInst->bSession = TRUE;
return ret;
}
if (!MSACM_AddToList(pDrvInst, lParam2))
{
ERR("load failed\n");
goto exit;
}
TRACE("=> %p\n", pDrvInst);
return pDrvInst;
exit:
HeapFree(MSACM_hHeap, 0, pDrvInst);
return NULL;
}
/***********************************************************************
* acmDriverOpen (MSACM32.@)
*/
MMRESULT WINAPI acmDriverOpen(PHACMDRIVER phad, HACMDRIVERID hadid, DWORD fdwOpen)
{
PWINE_ACMDRIVERID padid;
PWINE_ACMDRIVER pad = NULL;
MMRESULT ret;
TRACE("(%p, %p, %08u)\n", phad, hadid, fdwOpen);
if (!phad) {
WARN("invalid parameter\n");
return MMSYSERR_INVALPARAM;
}
if (fdwOpen) {
WARN("invalid flag\n");
return MMSYSERR_INVALFLAG;
}
padid = MSACM_GetDriverID(hadid);
if (!padid) {
WARN("invalid handle\n");
return MMSYSERR_INVALHANDLE;
}
pad = HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMDRIVER));
if (!pad) {
WARN("no memory\n");
return MMSYSERR_NOMEM;
}
pad->obj.dwType = WINE_ACMOBJ_DRIVER;
pad->obj.pACMDriverID = padid;
pad->hDrvr = 0;
pad->pLocalDrvrInst = NULL;
if (padid->pLocalDriver == NULL)
{
ACMDRVOPENDESCW adod;
int len;
LPWSTR section_name;
/* this is not an externally added driver... need to actually load it */
if (!padid->pszDriverAlias)
{
ret = MMSYSERR_ERROR;
goto gotError;
}
adod.cbStruct = sizeof(adod);
adod.fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
adod.fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
adod.dwVersion = acmGetVersion();
adod.dwFlags = fdwOpen;
adod.dwError = 0;
len = strlen("Drivers32") + 1;
section_name = HeapAlloc(MSACM_hHeap, 0, len * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, "Drivers32", -1, section_name, len);
adod.pszSectionName = section_name;
adod.pszAliasName = padid->pszDriverAlias;
adod.dnDevNode = 0;
pad->hDrvr = OpenDriver(padid->pszDriverAlias, NULL, (DWORD_PTR)&adod);
HeapFree(MSACM_hHeap, 0, section_name);
if (!pad->hDrvr)
{
ret = adod.dwError;
if (ret == MMSYSERR_NOERROR)
ret = MMSYSERR_NODRIVER;
goto gotError;
}
}
else
{
ACMDRVOPENDESCW adod;
pad->hDrvr = NULL;
adod.cbStruct = sizeof(adod);
adod.fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
adod.fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
adod.dwVersion = acmGetVersion();
adod.dwFlags = fdwOpen;
adod.dwError = 0;
adod.pszSectionName = NULL;
adod.pszAliasName = NULL;
adod.dnDevNode = 0;
pad->pLocalDrvrInst = MSACM_OpenLocalDriver(padid->pLocalDriver, (DWORD_PTR)&adod);
if (!pad->pLocalDrvrInst)
{
ret = adod.dwError;
if (ret == MMSYSERR_NOERROR)
ret = MMSYSERR_NODRIVER;
goto gotError;
}
}
/* insert new pad at beg of list */
pad->pNextACMDriver = padid->pACMDriverList;
padid->pACMDriverList = pad;
/* FIXME: Create a WINE_ACMDRIVER32 */
*phad = (HACMDRIVER)pad;
TRACE("%s => %p\n", debugstr_w(padid->pszDriverAlias), pad);
return MMSYSERR_NOERROR;
gotError:
WARN("failed: ret = %08x\n", ret);
if (pad && !pad->hDrvr)
HeapFree(MSACM_hHeap, 0, pad);
return ret;
}
