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Sweden-Number/dlls/mmdevapi/devenum.c

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/*
* Copyright 2009 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define NONAMELESSUNION
#include "config.h"
#include <stdarg.h>
#define CINTERFACE
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "ole2.h"
#include "mmdeviceapi.h"
#include "dshow.h"
#include "dsound.h"
#include "audioclient.h"
#include "endpointvolume.h"
#include "audiopolicy.h"
#include "mmdevapi.h"
#include "devpkey.h"
WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
static const WCHAR software_mmdevapi[] =
{ 'S','o','f','t','w','a','r','e','\\',
'M','i','c','r','o','s','o','f','t','\\',
'W','i','n','d','o','w','s','\\',
'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
'M','M','D','e','v','i','c','e','s','\\',
'A','u','d','i','o',0};
static const WCHAR reg_render[] =
{ 'R','e','n','d','e','r',0 };
static const WCHAR reg_capture[] =
{ 'C','a','p','t','u','r','e',0 };
static const WCHAR reg_devicestate[] =
{ 'D','e','v','i','c','e','S','t','a','t','e',0 };
static const WCHAR reg_properties[] =
{ 'P','r','o','p','e','r','t','i','e','s',0 };
static HKEY key_render;
static HKEY key_capture;
typedef struct MMDevEnumImpl
{
const IMMDeviceEnumeratorVtbl *lpVtbl;
LONG ref;
} MMDevEnumImpl;
static MMDevEnumImpl *MMDevEnumerator;
static MMDevice **MMDevice_head;
static MMDevice *MMDevice_def_rec, *MMDevice_def_play;
static DWORD MMDevice_count;
static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl;
static const IMMDeviceCollectionVtbl MMDevColVtbl;
static const IMMDeviceVtbl MMDeviceVtbl;
typedef struct MMDevColImpl
{
const IMMDeviceCollectionVtbl *lpVtbl;
LONG ref;
EDataFlow flow;
DWORD state;
} MMDevColImpl;
/* Creates or updates the state of a device
* If GUID is null, a random guid will be assigned
* and the device will be created
*/
static void MMDevice_Create(WCHAR *name, GUID *id, EDataFlow flow, DWORD state, BOOL setdefault)
{
HKEY key, root;
MMDevice *cur;
WCHAR guidstr[39];
DWORD i;
for (i = 0; i < MMDevice_count; ++i)
{
cur = MMDevice_head[i];
if (cur->flow == flow && !lstrcmpW(cur->alname, name))
{
LONG ret;
/* Same device, update state */
cur->state = state;
StringFromGUID2(&cur->devguid, guidstr, sizeof(guidstr)/sizeof(*guidstr));
ret = RegOpenKeyExW(flow == eRender ? key_render : key_capture, guidstr, 0, KEY_WRITE, &key);
if (ret == ERROR_SUCCESS)
{
RegSetValueExW(key, reg_devicestate, 0, REG_DWORD, (const BYTE*)&state, sizeof(DWORD));
RegCloseKey(key);
}
goto done;
}
}
/* No device found, allocate new one */
cur = HeapAlloc(GetProcessHeap(), 0, sizeof(*cur));
if (!cur)
return;
cur->alname = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(name)+1)*sizeof(WCHAR));
if (!cur->alname)
{
HeapFree(GetProcessHeap(), 0, cur);
return;
}
lstrcpyW(cur->alname, name);
cur->lpVtbl = &MMDeviceVtbl;
cur->ref = 0;
InitializeCriticalSection(&cur->crst);
cur->crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": MMDevice.crst");
cur->flow = flow;
cur->state = state;
if (!id)
{
id = &cur->devguid;
CoCreateGuid(id);
}
cur->devguid = *id;
StringFromGUID2(id, guidstr, sizeof(guidstr)/sizeof(*guidstr));
if (flow == eRender)
root = key_render;
else
root = key_capture;
if (!RegCreateKeyExW(root, guidstr, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &key, NULL))
{
HKEY keyprop;
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))
{
RegCloseKey(keyprop);
}
RegCloseKey(key);
}
if (!MMDevice_head)
MMDevice_head = HeapAlloc(GetProcessHeap(), 0, sizeof(*MMDevice_head));
else
MMDevice_head = HeapReAlloc(GetProcessHeap(), 0, MMDevice_head, sizeof(*MMDevice_head)*(1+MMDevice_count));
MMDevice_head[MMDevice_count++] = cur;
done:
if (setdefault)
{
if (flow == eRender)
MMDevice_def_play = cur;
else
MMDevice_def_rec = cur;
}
}
static void MMDevice_Destroy(MMDevice *This)
{
DWORD i;
TRACE("Freeing %s\n", debugstr_w(This->alname));
/* Since this function is called at destruction time, reordering of the list is unimportant */
for (i = 0; i < MMDevice_count; ++i)
{
if (MMDevice_head[i] == This)
{
MMDevice_head[i] = MMDevice_head[--MMDevice_count];
break;
}
}
This->crst.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->crst);
HeapFree(GetProcessHeap(), 0, This->alname);
HeapFree(GetProcessHeap(), 0, This);
}
static HRESULT WINAPI MMDevice_QueryInterface(IMMDevice *iface, REFIID riid, void **ppv)
{
MMDevice *This = (MMDevice *)iface;
TRACE("(%p)->(%s,%p)\n", iface, debugstr_guid(riid), ppv);
if (!ppv)
return E_POINTER;
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown)
|| IsEqualIID(riid, &IID_IMMDevice))
*ppv = This;
if (*ppv)
{
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI MMDevice_AddRef(IMMDevice *iface)
{
MMDevice *This = (MMDevice *)iface;
LONG ref;
ref = InterlockedIncrement(&This->ref);
TRACE("Refcount now %i\n", ref);
return ref;
}
static ULONG WINAPI MMDevice_Release(IMMDevice *iface)
{
MMDevice *This = (MMDevice *)iface;
LONG ref;
ref = InterlockedDecrement(&This->ref);
TRACE("Refcount now %i\n", ref);
return ref;
}
static HRESULT WINAPI MMDevice_Activate(IMMDevice *iface, REFIID riid, DWORD clsctx, PROPVARIANT *params, void **ppv)
{
MMDevice *This = (MMDevice *)iface;
HRESULT hr = E_NOINTERFACE;
TRACE("(%p)->(%p,%x,%p,%p)\n", This, riid, clsctx, params, ppv);
if (!ppv)
return E_POINTER;
FIXME("stub\n");
hr = E_NOTIMPL;
TRACE("Returning %08x\n", hr);
return hr;
}
static HRESULT WINAPI MMDevice_OpenPropertyStore(IMMDevice *iface, DWORD access, IPropertyStore **ppv)
{
MMDevice *This = (MMDevice *)iface;
TRACE("(%p)->(%x,%p)\n", This, access, ppv);
if (!ppv)
return E_POINTER;
FIXME("stub\n");
return E_NOTIMPL;
}
static HRESULT WINAPI MMDevice_GetId(IMMDevice *iface, WCHAR **itemid)
{
MMDevice *This = (MMDevice *)iface;
TRACE("(%p)->(%p)\n", This, itemid);
if (!itemid)
return E_POINTER;
*itemid = NULL;
FIXME("stub\n");
return E_NOTIMPL;
}
static HRESULT WINAPI MMDevice_GetState(IMMDevice *iface, DWORD *state)
{
MMDevice *This = (MMDevice *)iface;
TRACE("(%p)->(%p)\n", iface, state);
if (!state)
return E_POINTER;
*state = This->state;
return S_OK;
}
static const IMMDeviceVtbl MMDeviceVtbl =
{
MMDevice_QueryInterface,
MMDevice_AddRef,
MMDevice_Release,
MMDevice_Activate,
MMDevice_OpenPropertyStore,
MMDevice_GetId,
MMDevice_GetState
};
static HRESULT MMDevCol_Create(IMMDeviceCollection **ppv, EDataFlow flow, DWORD state)
{
MMDevColImpl *This;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
*ppv = NULL;
if (!This)
return E_OUTOFMEMORY;
This->lpVtbl = &MMDevColVtbl;
This->ref = 1;
This->flow = flow;
This->state = state;
*ppv = (IMMDeviceCollection*)This;
return S_OK;
}
static void MMDevCol_Destroy(MMDevColImpl *This)
{
HeapFree(GetProcessHeap(), 0, This);
}
static HRESULT WINAPI MMDevCol_QueryInterface(IMMDeviceCollection *iface, REFIID riid, void **ppv)
{
MMDevColImpl *This = (MMDevColImpl*)iface;
if (!ppv)
return E_POINTER;
if (IsEqualIID(riid, &IID_IUnknown)
|| IsEqualIID(riid, &IID_IMMDeviceCollection))
*ppv = This;
else
*ppv = NULL;
if (!*ppv)
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI MMDevCol_AddRef(IMMDeviceCollection *iface)
{
MMDevColImpl *This = (MMDevColImpl*)iface;
LONG ref = InterlockedIncrement(&This->ref);
TRACE("Refcount now %i\n", ref);
return ref;
}
static ULONG WINAPI MMDevCol_Release(IMMDeviceCollection *iface)
{
MMDevColImpl *This = (MMDevColImpl*)iface;
LONG ref = InterlockedDecrement(&This->ref);
TRACE("Refcount now %i\n", ref);
if (!ref)
MMDevCol_Destroy(This);
return ref;
}
static HRESULT WINAPI MMDevCol_GetCount(IMMDeviceCollection *iface, UINT *numdevs)
{
MMDevColImpl *This = (MMDevColImpl*)iface;
TRACE("(%p)->(%p)\n", This, numdevs);
if (!numdevs)
return E_POINTER;
*numdevs = 0;
return S_OK;
}
static HRESULT WINAPI MMDevCol_Item(IMMDeviceCollection *iface, UINT i, IMMDevice **dev)
{
MMDevColImpl *This = (MMDevColImpl*)iface;
TRACE("(%p)->(%u, %p)\n", This, i, dev);
if (!dev)
return E_POINTER;
*dev = NULL;
return E_INVALIDARG;
}
static const IMMDeviceCollectionVtbl MMDevColVtbl =
{
MMDevCol_QueryInterface,
MMDevCol_AddRef,
MMDevCol_Release,
MMDevCol_GetCount,
MMDevCol_Item
};
HRESULT MMDevEnum_Create(REFIID riid, void **ppv)
{
MMDevEnumImpl *This = MMDevEnumerator;
if (!This)
{
DWORD i = 0;
HKEY root, cur;
LONG ret;
DWORD curflow;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
*ppv = NULL;
if (!This)
return E_OUTOFMEMORY;
This->ref = 1;
This->lpVtbl = &MMDevEnumVtbl;
MMDevEnumerator = This;
ret = RegCreateKeyExW(HKEY_LOCAL_MACHINE, software_mmdevapi, 0, NULL, 0, KEY_WRITE|KEY_READ, NULL, &root, NULL);
if (ret == ERROR_SUCCESS)
ret = RegCreateKeyExW(root, reg_capture, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_capture, NULL);
if (ret == ERROR_SUCCESS)
ret = RegCreateKeyExW(root, reg_render, 0, NULL, 0, KEY_READ|KEY_WRITE, NULL, &key_render, NULL);
RegCloseKey(root);
cur = key_capture;
curflow = eCapture;
if (ret != ERROR_SUCCESS)
{
RegCloseKey(key_capture);
key_render = key_capture = NULL;
WARN("Couldn't create key: %u\n", ret);
return E_FAIL;
}
else do {
WCHAR guidvalue[39];
GUID guid;
DWORD len;
len = sizeof(guidvalue);
ret = RegEnumKeyExW(cur, i++, guidvalue, &len, NULL, NULL, NULL, NULL);
if (ret == ERROR_NO_MORE_ITEMS)
{
if (cur == key_capture)
{
cur = key_render;
curflow = eRender;
i = 0;
continue;
}
break;
}
if (ret != ERROR_SUCCESS)
continue;
if (SUCCEEDED(CLSIDFromString(guidvalue, &guid)))
/* Using guid as friendly name till property store works */
MMDevice_Create(guidvalue, &guid, curflow,
DEVICE_STATE_NOTPRESENT, FALSE);
} while (1);
}
return IUnknown_QueryInterface((IUnknown*)This, riid, ppv);
}
void MMDevEnum_Free(void)
{
while (MMDevice_count)
MMDevice_Destroy(MMDevice_head[0]);
RegCloseKey(key_render);
RegCloseKey(key_capture);
key_render = key_capture = NULL;
HeapFree(GetProcessHeap(), 0, MMDevEnumerator);
MMDevEnumerator = NULL;
}
static HRESULT WINAPI MMDevEnum_QueryInterface(IMMDeviceEnumerator *iface, REFIID riid, void **ppv)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
if (!ppv)
return E_POINTER;
if (IsEqualIID(riid, &IID_IUnknown)
|| IsEqualIID(riid, &IID_IMMDeviceEnumerator))
*ppv = This;
else
*ppv = NULL;
if (!*ppv)
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI MMDevEnum_AddRef(IMMDeviceEnumerator *iface)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
LONG ref = InterlockedIncrement(&This->ref);
TRACE("Refcount now %i\n", ref);
return ref;
}
static ULONG WINAPI MMDevEnum_Release(IMMDeviceEnumerator *iface)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
LONG ref = InterlockedDecrement(&This->ref);
if (!ref)
MMDevEnum_Free();
TRACE("Refcount now %i\n", ref);
return ref;
}
static HRESULT WINAPI MMDevEnum_EnumAudioEndpoints(IMMDeviceEnumerator *iface, EDataFlow flow, DWORD mask, IMMDeviceCollection **devices)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
TRACE("(%p)->(%u,%u,%p)\n", This, flow, mask, devices);
if (!devices)
return E_POINTER;
*devices = NULL;
if (flow >= EDataFlow_enum_count)
return E_INVALIDARG;
if (mask & ~DEVICE_STATEMASK_ALL)
return E_INVALIDARG;
return MMDevCol_Create(devices, flow, mask);
}
static HRESULT WINAPI MMDevEnum_GetDefaultAudioEndpoint(IMMDeviceEnumerator *iface, EDataFlow flow, ERole role, IMMDevice **device)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
TRACE("(%p)->(%u,%u,%p)\n", This, flow, role, device);
if (!device)
return E_POINTER;
*device = NULL;
if (flow == eRender)
*device = (IMMDevice*)MMDevice_def_play;
else if (flow == eCapture)
*device = (IMMDevice*)MMDevice_def_rec;
else
{
WARN("Unknown flow %u\n", flow);
return E_INVALIDARG;
}
if (!*device)
return E_NOTFOUND;
IMMDevice_AddRef(*device);
return S_OK;
}
static HRESULT WINAPI MMDevEnum_GetDevice(IMMDeviceEnumerator *iface, const WCHAR *name, IMMDevice **device)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
TRACE("(%p)->(%s,%p)\n", This, debugstr_w(name), device);
FIXME("stub\n");
return E_NOTIMPL;
}
static HRESULT WINAPI MMDevEnum_RegisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
TRACE("(%p)->(%p)\n", This, client);
FIXME("stub\n");
return E_NOTIMPL;
}
static HRESULT WINAPI MMDevEnum_UnregisterEndpointNotificationCallback(IMMDeviceEnumerator *iface, IMMNotificationClient *client)
{
MMDevEnumImpl *This = (MMDevEnumImpl*)iface;
TRACE("(%p)->(%p)\n", This, client);
FIXME("stub\n");
return E_NOTIMPL;
}
static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl =
{
MMDevEnum_QueryInterface,
MMDevEnum_AddRef,
MMDevEnum_Release,
MMDevEnum_EnumAudioEndpoints,
MMDevEnum_GetDefaultAudioEndpoint,
MMDevEnum_GetDevice,
MMDevEnum_RegisterEndpointNotificationCallback,
MMDevEnum_UnregisterEndpointNotificationCallback
};
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