118 lines
2.8 KiB
C++
118 lines
2.8 KiB
C++
/*
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* Copyright 2020-2021 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_WASAPI_DEVICE_COLLECTION_HXX
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#define MPD_WASAPI_DEVICE_COLLECTION_HXX
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#include "win32/ComPtr.hxx"
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#include "win32/HResult.hxx"
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#include <mmdeviceapi.h>
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inline ComPtr<IMMDevice>
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GetDefaultAudioEndpoint(IMMDeviceEnumerator &e)
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{
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IMMDevice *device = nullptr;
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HRESULT result = e.GetDefaultAudioEndpoint(eRender, eMultimedia,
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&device);
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if (FAILED(result))
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throw MakeHResultError(result,
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"Unable to get default device for multimedia");
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return ComPtr{device};
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}
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inline ComPtr<IMMDeviceCollection>
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EnumAudioEndpoints(IMMDeviceEnumerator &e)
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{
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IMMDeviceCollection *dc = nullptr;
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HRESULT result = e.EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE,
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&dc);
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if (FAILED(result))
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throw MakeHResultError(result, "Unable to enumerate devices");
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return ComPtr{dc};
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}
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inline UINT
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GetCount(IMMDeviceCollection &dc)
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{
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UINT count;
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HRESULT result = dc.GetCount(&count);
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if (FAILED(result))
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throw MakeHResultError(result, "Collection->GetCount failed");
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return count;
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}
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inline ComPtr<IMMDevice>
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Item(IMMDeviceCollection &dc, UINT i)
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{
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IMMDevice *device = nullptr;
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auto result = dc.Item(i, &device);
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if (FAILED(result))
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throw MakeHResultError(result, "Collection->Item failed");
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return ComPtr{device};
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}
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inline DWORD
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GetState(IMMDevice &device)
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{
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DWORD state;
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HRESULT result = device.GetState(&state);;
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if (FAILED(result))
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throw MakeHResultError(result, "Unable to get device status");
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return state;
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}
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template<typename T>
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inline ComPtr<T>
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Activate(IMMDevice &device)
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{
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T *p = nullptr;
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HRESULT result = device.Activate(__uuidof(T), CLSCTX_ALL,
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nullptr, (void **)&p);
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if (FAILED(result))
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throw MakeHResultError(result, "Unable to activate device");
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return ComPtr{p};
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}
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inline ComPtr<IPropertyStore>
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OpenPropertyStore(IMMDevice &device)
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{
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IPropertyStore *property_store = nullptr;
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HRESULT result = device.OpenPropertyStore(STGM_READ, &property_store);
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if (FAILED(result))
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throw MakeHResultError(result,
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"Device->OpenPropertyStore failed");
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return ComPtr{property_store};
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}
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#endif
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