Sweden-Number/dlls/mmdevapi/devenum.c

255 lines
6.8 KiB
C

/*
* 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
*/
#include "config.h"
#include <stdarg.h>
#define CINTERFACE
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "wine/debug.h"
#include "ole2.h"
#include "mmdeviceapi.h"
#include "mmdevapi.h"
WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
typedef struct MMDevEnumImpl
{
const IMMDeviceEnumeratorVtbl *lpVtbl;
LONG ref;
} MMDevEnumImpl;
static MMDevEnumImpl *MMDevEnumerator;
static const IMMDeviceEnumeratorVtbl MMDevEnumVtbl;
typedef struct MMDevColImpl
{
const IMMDeviceCollectionVtbl *lpVtbl;
LONG ref;
MMDevEnumImpl *parent;
EDataFlow flow;
DWORD state;
} MMDevColImpl;
static const IMMDeviceCollectionVtbl MMDevColVtbl;
static HRESULT MMDevCol_Create(IMMDeviceCollection **ppv, MMDevEnumImpl *parent, 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->parent = parent;
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)
{
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
*ppv = NULL;
if (!This)
return E_OUTOFMEMORY;
This->ref = 1;
This->lpVtbl = &MMDevEnumVtbl;
MMDevEnumerator = This;
}
return IUnknown_QueryInterface((IUnknown*)This, riid, ppv);
}
void MMDevEnum_Free(void)
{
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, This, 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);
FIXME("stub\n");
return E_NOTFOUND;
}
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
};