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mmdevapi: Implement property store.

This commit is contained in:
Maarten Lankhorst 2010-02-21 14:06:37 +01:00 committed by Alexandre Julliard
parent c8195ebdb9
commit 90c30b3ad1
2 changed files with 334 additions and 5 deletions
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336
dlls/mmdevapi/devenum.c
View File

@ -62,6 +62,14 @@ static const WCHAR reg_properties[] =
static HKEY key_render;
static HKEY key_capture;
typedef struct MMDevPropStoreImpl
{
const IPropertyStoreVtbl *lpVtbl;
LONG ref;
MMDevice *parent;
DWORD access;
} MMDevPropStore;
typedef struct MMDevEnumImpl
{
const IMMDeviceEnumeratorVtbl *lpVtbl;
@ -75,6 +83,8 @@ static DWORD MMDevice_count;
static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl;
static const IMMDeviceCollectionVtbl MMDevColVtbl;
static const IMMDeviceVtbl MMDeviceVtbl;
static const IPropertyStoreVtbl MMDevPropVtbl;
typedef struct MMDevColImpl
{
@ -84,6 +94,8 @@ typedef struct MMDevColImpl
DWORD state;
} MMDevColImpl;
static HRESULT MMDevPropStore_Create(MMDevice *This, DWORD access, IPropertyStore **ppv);
/* Creates or updates the state of a device
* If GUID is null, a random guid will be assigned
* and the device will be created
@ -148,6 +160,11 @@ static void MMDevice_Create(WCHAR *name, GUID *id, EDataFlow flow, DWORD state,
RegSetValueExW(key, reg_devicestate, 0, REG_DWORD, (const BYTE*)&state, sizeof(DWORD));
if (!RegCreateKeyExW(key, reg_properties, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &keyprop, NULL))
{
PROPVARIANT pv;
pv.vt = VT_LPWSTR;
pv.u.pwszVal = name;
MMDevice_SetPropValue(id, flow, (PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv);
MMDevice_SetPropValue(id, flow, (PROPERTYKEY*)&DEVPKEY_Device_DeviceDesc, &pv);
RegCloseKey(keyprop);
}
RegCloseKey(key);
@ -249,8 +266,7 @@ static HRESULT WINAPI MMDevice_OpenPropertyStore(IMMDevice *iface, DWORD access,
if (!ppv)
return E_POINTER;
FIXME("stub\n");
return E_NOTIMPL;
return MMDevPropStore_Create(This, access, ppv);
}
static HRESULT WINAPI MMDevice_GetId(IMMDevice *iface, WCHAR **itemid)
@ -373,6 +389,139 @@ static const IMMDeviceCollectionVtbl MMDevColVtbl =
MMDevCol_Item
};
static const WCHAR propkey_formatW[] = {
'{','%','0','8','X','-','%','0','4','X','-',
'%','0','4','X','-','%','0','2','X','%','0','2','X','-',
'%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',
'%','0','2','X','%','0','2','X','}',',','%','d',0 };
static HRESULT MMDevPropStore_OpenPropKey(const GUID *guid, DWORD flow, HKEY *propkey)
{
WCHAR buffer[39];
LONG ret;
HKEY key;
StringFromGUID2(guid, buffer, 39);
if ((ret = RegOpenKeyExW(flow == eRender ? key_render : key_capture, buffer, 0, KEY_READ|KEY_WRITE, &key)) != ERROR_SUCCESS)
{
WARN("Opening key %s failed with %u\n", debugstr_w(buffer), ret);
return E_FAIL;
}
ret = RegOpenKeyExW(key, reg_properties, 0, KEY_READ|KEY_WRITE, propkey);
RegCloseKey(key);
if (ret != ERROR_SUCCESS)
{
WARN("Opening key %s failed with %u\n", debugstr_w(reg_properties), ret);
return E_FAIL;
}
return S_OK;
}
HRESULT MMDevice_GetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, PROPVARIANT *pv)
{
WCHAR buffer[80];
const GUID *id = &key->fmtid;
DWORD type, size;
HRESULT hr = S_OK;
HKEY regkey;
LONG ret;
hr = MMDevPropStore_OpenPropKey(devguid, flow, &regkey);
if (FAILED(hr))
return hr;
wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
ret = RegGetValueW(regkey, NULL, buffer, RRF_RT_ANY, &type, NULL, &size);
if (ret != ERROR_SUCCESS)
{
WARN("Reading %s returned %d\n", debugstr_w(buffer), ret);
RegCloseKey(regkey);
PropVariantClear(pv);
return S_OK;
}
switch (type)
{
case REG_SZ:
{
pv->vt = VT_LPWSTR;
pv->u.pwszVal = CoTaskMemAlloc(size);
if (!pv->u.pwszVal)
hr = E_OUTOFMEMORY;
else
RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_SZ, NULL, (BYTE*)pv->u.pwszVal, &size);
break;
}
case REG_DWORD:
{
pv->vt = VT_UI4;
RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_DWORD, NULL, (BYTE*)&pv->u.ulVal, &size);
break;
}
case REG_BINARY:
{
pv->vt = VT_BLOB;
pv->u.blob.cbSize = size;
pv->u.blob.pBlobData = CoTaskMemAlloc(size);
if (!pv->u.blob.pBlobData)
hr = E_OUTOFMEMORY;
else
RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_BINARY, NULL, (BYTE*)pv->u.blob.pBlobData, &size);
break;
}
default:
ERR("Unknown/unhandled type: %u\n", type);
PropVariantClear(pv);
break;
}
RegCloseKey(regkey);
return hr;
}
HRESULT MMDevice_SetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, REFPROPVARIANT pv)
{
WCHAR buffer[80];
const GUID *id = &key->fmtid;
HRESULT hr;
HKEY regkey;
LONG ret;
hr = MMDevPropStore_OpenPropKey(devguid, flow, &regkey);
if (FAILED(hr))
return hr;
wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
switch (pv->vt)
{
case VT_UI4:
{
ret = RegSetValueExW(regkey, buffer, 0, REG_DWORD, (BYTE*)&pv->u.ulVal, sizeof(DWORD));
break;
}
case VT_BLOB:
{
ret = RegSetValueExW(regkey, buffer, 0, REG_BINARY, pv->u.blob.pBlobData, pv->u.blob.cbSize);
TRACE("Blob %p %u\n", pv->u.blob.pBlobData, pv->u.blob.cbSize);
break;
}
case VT_LPWSTR:
{
ret = RegSetValueExW(regkey, buffer, 0, REG_SZ, (BYTE*)pv->u.pwszVal, sizeof(WCHAR)*(1+lstrlenW(pv->u.pwszVal)));
break;
}
default:
ret = 0;
FIXME("Unhandled type %u\n", pv->vt);
hr = E_INVALIDARG;
break;
}
RegCloseKey(regkey);
TRACE("Writing %s returned %u\n", debugstr_w(buffer), ret);
return hr;
}
HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
{
MMDevEnumImpl *This = MMDevEnumerator;
@ -411,6 +560,7 @@ HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
WCHAR guidvalue[39];
GUID guid;
DWORD len;
PROPVARIANT pv = { VT_EMPTY };
len = sizeof(guidvalue);
ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
@ -427,10 +577,14 @@ HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
}
if (ret != ERROR_SUCCESS)
continue;
if (SUCCEEDED(CLSIDFromString(guidvalue, &guid)))
/* Using guid as friendly name till property store works */
MMDevice_Create(guidvalue, &guid, curflow,
if (SUCCEEDED(CLSIDFromString(guidvalue, &guid))
&& SUCCEEDED(MMDevice_GetPropValue(&guid, curflow, (PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pv))
&& pv.vt == VT_LPWSTR)
{
MMDevice_Create(pv.u.pwszVal, &guid, curflow,
DEVICE_STATE_NOTPRESENT, FALSE);
CoTaskMemFree(pv.u.pwszVal);
}
} while (1);
}
return IUnknown_QueryInterface((IUnknown*)This, riid, ppv);
@ -556,3 +710,175 @@ static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl =
MMDevEnum_RegisterEndpointNotificationCallback,
MMDevEnum_UnregisterEndpointNotificationCallback
};
static HRESULT MMDevPropStore_Create(MMDevice *parent, DWORD access, IPropertyStore **ppv)
{
MMDevPropStore *This;
if (access != STGM_READ
&& access != STGM_WRITE
&& access != STGM_READWRITE)
{
WARN("Invalid access %08x\n", access);
return E_INVALIDARG;
}
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
*ppv = (IPropertyStore*)This;
if (!This)
return E_OUTOFMEMORY;
This->lpVtbl = &MMDevPropVtbl;
This->ref = 1;
This->parent = parent;
This->access = access;
return S_OK;
}
static void MMDevPropStore_Destroy(MMDevPropStore *This)
{
HeapFree(GetProcessHeap(), 0, This);
}
static HRESULT WINAPI MMDevPropStore_QueryInterface(IPropertyStore *iface, REFIID riid, void **ppv)
{
MMDevPropStore *This = (MMDevPropStore*)iface;
if (!ppv)
return E_POINTER;
if (IsEqualIID(riid, &IID_IUnknown)
|| IsEqualIID(riid, &IID_IPropertyStore))
*ppv = This;
else
*ppv = NULL;
if (!*ppv)
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI MMDevPropStore_AddRef(IPropertyStore *iface)
{
MMDevPropStore *This = (MMDevPropStore*)iface;
LONG ref = InterlockedIncrement(&This->ref);
TRACE("Refcount now %i\n", ref);
return ref;
}
static ULONG WINAPI MMDevPropStore_Release(IPropertyStore *iface)
{
MMDevPropStore *This = (MMDevPropStore*)iface;
LONG ref = InterlockedDecrement(&This->ref);
TRACE("Refcount now %i\n", ref);
if (!ref)
MMDevPropStore_Destroy(This);
return ref;
}
static HRESULT WINAPI MMDevPropStore_GetCount(IPropertyStore *iface, DWORD *nprops)
{
MMDevPropStore *This = (MMDevPropStore*)iface;
WCHAR buffer[50];
DWORD i = 0;
HKEY propkey;
HRESULT hr;
TRACE("(%p)->(%p)\n", iface, nprops);
if (!nprops)
return E_POINTER;
hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
if (FAILED(hr))
return hr;
*nprops = 0;
do {
DWORD len = sizeof(buffer)/sizeof(*buffer);
if (RegEnumKeyExW(propkey, i, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
break;
i++;
} while (0);
RegCloseKey(propkey);
TRACE("Returning %i\n", i);
*nprops = i;
return S_OK;
}
static HRESULT WINAPI MMDevPropStore_GetAt(IPropertyStore *iface, DWORD prop, PROPERTYKEY *key)
{
MMDevPropStore *This = (MMDevPropStore*)iface;
WCHAR buffer[50];
DWORD len = sizeof(buffer)/sizeof(*buffer);
HRESULT hr;
HKEY propkey;
TRACE("(%p)->(%u,%p)\n", iface, prop, key);
if (!key)
return E_POINTER;
hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
if (FAILED(hr))
return hr;
if (RegEnumKeyExW(propkey, prop, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS
|| len <= 40)
{
WARN("GetAt %u failed\n", prop);
return E_INVALIDARG;
}
RegCloseKey(propkey);
buffer[39] = 0;
CLSIDFromString(buffer, &key->fmtid);
key->pid = atoiW(&buffer[40]);
return S_OK;
}
static HRESULT WINAPI MMDevPropStore_GetValue(IPropertyStore *iface, REFPROPERTYKEY key, PROPVARIANT *pv)
{
MMDevPropStore *This = (MMDevPropStore*)iface;
TRACE("(%p)->(\"%s,%u\", %p\n", This, debugstr_guid(&key->fmtid), key ? key->pid : 0, pv);
if (!key || !pv)
return E_POINTER;
if (This->access != STGM_READ
&& This->access != STGM_READWRITE)
return STG_E_ACCESSDENIED;
/* Special case */
if (IsEqualPropertyKey(*key, PKEY_AudioEndpoint_GUID))
{
pv->u.pwszVal = CoTaskMemAlloc(39 * sizeof(WCHAR));
if (!pv->u.pwszVal)
return E_OUTOFMEMORY;
StringFromGUID2(&This->parent->devguid, pv->u.pwszVal, 39);
return S_OK;
}
return MMDevice_GetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
}
static HRESULT WINAPI MMDevPropStore_SetValue(IPropertyStore *iface, REFPROPERTYKEY key, REFPROPVARIANT pv)
{
MMDevPropStore *This = (MMDevPropStore*)iface;
if (!key || !pv)
return E_POINTER;
if (This->access != STGM_WRITE
&& This->access != STGM_READWRITE)
return STG_E_ACCESSDENIED;
return MMDevice_SetPropValue(&This->parent->devguid, This->parent->flow, key, pv);
}
static HRESULT WINAPI MMDevPropStore_Commit(IPropertyStore *iface)
{
FIXME("stub\n");
return E_NOTIMPL;
}
static const IPropertyStoreVtbl MMDevPropVtbl =
{
MMDevPropStore_QueryInterface,
MMDevPropStore_AddRef,
MMDevPropStore_Release,
MMDevPropStore_GetCount,
MMDevPropStore_GetAt,
MMDevPropStore_GetValue,
MMDevPropStore_SetValue,
MMDevPropStore_Commit
};

3
dlls/mmdevapi/mmdevapi.h
View File

@ -19,6 +19,9 @@
extern HRESULT MMDevEnum_Create(REFIID riid, void **ppv);
extern void MMDevEnum_Free(void);
extern HRESULT MMDevice_GetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, PROPVARIANT *pv);
extern HRESULT MMDevice_SetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, REFPROPVARIANT pv);
typedef struct MMDevice {
const IMMDeviceVtbl *lpVtbl;
LONG ref;