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msacm: acmDriverMessage() with proper support for DRV_CONFIGURE.
Allocate and supply a DRVCONFIGINFO structure for DRV_CONFIGURE when application does not supply one.
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e3851bc7f7
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1 changed files with 88 additions and 1 deletions
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@ -40,6 +40,7 @@
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#include "msacmdrv.h"
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#include "wineacm.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msacm);
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@ -369,6 +370,15 @@ MMRESULT WINAPI acmDriverID(HACMOBJ hao, PHACMDRIVERID phadid, DWORD fdwDriverID
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/***********************************************************************
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* acmDriverMessage (MSACM32.@)
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*
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* Note: MSDN documentation (July 2001) is incomplete. This function
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* accepts sending messages to an HACMDRIVERID in addition to the
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* documented HACMDRIVER. In fact, for DRV_QUERYCONFIGURE and DRV_CONFIGURE,
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* this might actually be the required mode of operation.
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*
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* Note: For DRV_CONFIGURE, msacm supplies its own DRVCONFIGINFO structure
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* when the application fails to supply one. Some native drivers depend on
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* this and refuse to display unless a valid DRVCONFIGINFO structure is
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* built and supplied.
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*/
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LRESULT WINAPI acmDriverMessage(HACMDRIVER had, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
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{
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@ -378,8 +388,85 @@ LRESULT WINAPI acmDriverMessage(HACMDRIVER had, UINT uMsg, LPARAM lParam1, LPARA
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uMsg == ACMDM_DRIVER_ABOUT ||
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uMsg == DRV_QUERYCONFIGURE ||
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uMsg == DRV_CONFIGURE)
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return MSACM_Message(had, uMsg, lParam1, lParam2);
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{
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PWINE_ACMDRIVERID padid;
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LRESULT lResult;
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LPDRVCONFIGINFO pConfigInfo = NULL;
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/* Check whether handle is an HACMDRIVERID */
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padid = MSACM_GetDriverID((HACMDRIVERID)had);
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/* If the message is DRV_CONFIGURE, and the application provides no
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DRVCONFIGINFO structure, msacm must supply its own.
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*/
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if (uMsg == DRV_CONFIGURE && lParam2 == 0) {
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LPWSTR pAlias;
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/* Get the alias from the HACMDRIVERID */
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if (padid) {
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pAlias = padid->pszDriverAlias;
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if (pAlias == NULL) {
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WARN("DRV_CONFIGURE: no alias for this driver, cannot self-supply alias\n");
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}
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} else {
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FIXME("DRV_CONFIGURE: reverse lookup HACMDRIVER -> HACMDRIVERID not implemented\n");
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pAlias = NULL;
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}
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if (pAlias != NULL) {
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unsigned int iStructSize = 16;
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/* This verification is required because DRVCONFIGINFO is 12 bytes
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long, yet native msacm reports a 16-byte structure to codecs.
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*/
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if (iStructSize < sizeof(DRVCONFIGINFO)) iStructSize = sizeof(DRVCONFIGINFO);
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pConfigInfo = HeapAlloc(MSACM_hHeap, 0, iStructSize);
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if (!pConfigInfo) {
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ERR("OOM while supplying DRVCONFIGINFO for DRV_CONFIGURE, using NULL\n");
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} else {
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static const WCHAR drivers32[] = {'D','r','i','v','e','r','s','3','2','\0'};
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pConfigInfo->dwDCISize = iStructSize;
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pConfigInfo->lpszDCISectionName = HeapAlloc(MSACM_hHeap, 0, (strlenW(drivers32) + 1) * sizeof(WCHAR));
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if (pConfigInfo->lpszDCISectionName) strcpyW((WCHAR *)pConfigInfo->lpszDCISectionName, drivers32);
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pConfigInfo->lpszDCIAliasName = HeapAlloc(MSACM_hHeap, 0, (strlenW(pAlias) + 1) * sizeof(WCHAR));
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if (pConfigInfo->lpszDCIAliasName) strcpyW((WCHAR *)pConfigInfo->lpszDCIAliasName, pAlias);
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if (pConfigInfo->lpszDCISectionName == NULL || pConfigInfo->lpszDCIAliasName == NULL) {
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HeapFree(MSACM_hHeap, 0, (void *)pConfigInfo->lpszDCIAliasName);
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HeapFree(MSACM_hHeap, 0, (void *)pConfigInfo->lpszDCISectionName);
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HeapFree(MSACM_hHeap, 0, pConfigInfo);
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pConfigInfo = NULL;
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ERR("OOM while supplying DRVCONFIGINFO for DRV_CONFIGURE, using NULL\n");
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}
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}
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}
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lParam2 = (LPARAM)pConfigInfo;
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}
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if (padid) {
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/* Handle is really an HACMDRIVERID, must have an open session to get an HACMDRIVER */
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if (padid->pACMDriverList != NULL) {
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lResult = SendDriverMessage(padid->pACMDriverList->hDrvr, uMsg, lParam1, lParam2);
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} else {
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MMRESULT mmr = acmDriverOpen(&had, (HACMDRIVERID)padid, 0);
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if (mmr != MMSYSERR_NOERROR) {
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lResult = MMSYSERR_INVALPARAM;
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} else {
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lResult = acmDriverMessage(had, uMsg, lParam1, lParam2);
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acmDriverClose(had, 0);
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}
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}
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} else {
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lResult = MSACM_Message(had, uMsg, lParam1, lParam2);
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}
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if (pConfigInfo) {
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HeapFree(MSACM_hHeap, 0, (void *)pConfigInfo->lpszDCIAliasName);
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HeapFree(MSACM_hHeap, 0, (void *)pConfigInfo->lpszDCISectionName);
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HeapFree(MSACM_hHeap, 0, pConfigInfo);
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}
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return lResult;
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}
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WARN("invalid parameter\n");
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return MMSYSERR_INVALPARAM;
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}
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