mirror of
https://github.com/libretro/RetroArch
synced 2024-12-29 12:31:05 +00:00
137 lines
3.8 KiB
C
137 lines
3.8 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2011-2017 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the 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 with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <encodings/utf.h>
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#include <lists/string_list.h>
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#include "mmdevice_common.h"
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#include "mmdevice_common_inline.h"
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void *mmdevice_list_new(void *u)
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{
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HRESULT hr;
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UINT i;
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PROPVARIANT prop_var;
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union string_list_elem_attr attr;
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IMMDeviceEnumerator *enumerator = NULL;
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IMMDeviceCollection *collection = NULL;
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UINT dev_count = 0;
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IMMDevice *device = NULL;
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LPWSTR dev_id_wstr = NULL;
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IPropertyStore *prop_store = NULL;
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bool br = false;
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bool prop_var_init = false;
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char *dev_id_str = NULL;
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char *dev_name_str = NULL;
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struct string_list *sl = string_list_new();
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if (!sl)
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return NULL;
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attr.i = 0;
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#ifdef __cplusplus
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hr = CoCreateInstance(CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL,
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IID_IMMDeviceEnumerator, (void **)&enumerator);
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#else
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hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL,
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&IID_IMMDeviceEnumerator, (void **)&enumerator);
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#endif
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if (FAILED(hr))
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goto error;
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hr = _IMMDeviceEnumerator_EnumAudioEndpoints(enumerator,
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eRender, DEVICE_STATE_ACTIVE, &collection);
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if (FAILED(hr))
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goto error;
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hr = _IMMDeviceCollection_GetCount(collection, &dev_count);
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if (FAILED(hr))
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goto error;
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for (i = 0; i < dev_count; ++i)
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{
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hr = _IMMDeviceCollection_Item(collection, i, &device);
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if (FAILED(hr))
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goto error;
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hr = _IMMDevice_GetId(device, &dev_id_wstr);
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if (FAILED(hr))
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goto error;
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if (!(dev_id_str = utf16_to_utf8_string_alloc(dev_id_wstr)))
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goto error;
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hr = _IMMDevice_OpenPropertyStore(device, STGM_READ, &prop_store);
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if (FAILED(hr))
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goto error;
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PropVariantInit(&prop_var);
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prop_var_init = true;
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hr = _IPropertyStore_GetValue(
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prop_store, PKEY_Device_FriendlyName,
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&prop_var);
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if (FAILED(hr))
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goto error;
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if (!(dev_name_str = utf16_to_utf8_string_alloc(prop_var.pwszVal)))
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goto error;
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br = string_list_append(sl, dev_name_str, attr);
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if (!br)
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goto error;
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if (dev_id_str)
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sl->elems[sl->size-1].userdata = dev_id_str;
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PropVariantClear(&prop_var);
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prop_var_init = false;
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if (dev_id_wstr)
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CoTaskMemFree(dev_id_wstr);
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if (dev_name_str)
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free(dev_name_str);
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dev_name_str = NULL;
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dev_id_wstr = NULL;
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IFACE_RELEASE(prop_store);
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IFACE_RELEASE(device);
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}
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IFACE_RELEASE(collection);
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IFACE_RELEASE(enumerator);
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return sl;
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error:
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if (dev_id_str)
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free(dev_id_str);
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if (dev_name_str)
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free(dev_name_str);
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dev_id_str = NULL;
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dev_name_str = NULL;
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if (prop_var_init)
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PropVariantClear(&prop_var);
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IFACE_RELEASE(prop_store);
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if (dev_id_wstr)
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CoTaskMemFree(dev_id_wstr);
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dev_id_wstr = NULL;
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IFACE_RELEASE(device);
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IFACE_RELEASE(collection);
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IFACE_RELEASE(enumerator);
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if (sl)
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string_list_free(sl);
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return NULL;
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}
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