mirror of
git://source.winehq.org/git/wine.git
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209 lines
5.6 KiB
C
209 lines
5.6 KiB
C
/*
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* Copyright 2011 Andrew Eikum for CodeWeavers
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* 2022 Huw Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include <stdarg.h>
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#include <wchar.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winternl.h"
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#include "winnls.h"
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#include "winreg.h"
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#include "ole2.h"
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#include "mmdeviceapi.h"
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#include "devpkey.h"
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#include "dshow.h"
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#include "dsound.h"
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#include "initguid.h"
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#include "endpointvolume.h"
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#include "audiopolicy.h"
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#include "audioclient.h"
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#include "wine/debug.h"
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#include "wine/list.h"
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#include "wine/unixlib.h"
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#include "unixlib.h"
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#include "../mmdevapi/mmdevdrv.h"
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WINE_DEFAULT_DEBUG_CHANNEL(oss);
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typedef struct _OSSDevice {
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struct list entry;
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EDataFlow flow;
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GUID guid;
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char devnode[0];
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} OSSDevice;
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static struct list g_devices = LIST_INIT(g_devices);
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static WCHAR drv_key_devicesW[256];
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static const WCHAR guidW[] = {'g','u','i','d',0};
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BOOL WINAPI DllMain(HINSTANCE dll, DWORD reason, void *reserved)
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{
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switch (reason)
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{
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case DLL_PROCESS_ATTACH:
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{
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WCHAR buf[MAX_PATH];
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WCHAR *filename;
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if(__wine_init_unix_call()) return FALSE;
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GetModuleFileNameW(dll, buf, ARRAY_SIZE(buf));
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filename = wcsrchr(buf, '\\');
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filename = filename ? filename + 1 : buf;
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swprintf(drv_key_devicesW, ARRAY_SIZE(drv_key_devicesW),
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L"Software\\Wine\\Drivers\\%s\\devices", filename);
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break;
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}
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case DLL_PROCESS_DETACH:
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if (!reserved)
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{
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OSSDevice *iter, *iter2;
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LIST_FOR_EACH_ENTRY_SAFE(iter, iter2, &g_devices, OSSDevice, entry){
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HeapFree(GetProcessHeap(), 0, iter);
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}
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}
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break;
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}
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return TRUE;
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}
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static void device_add(OSSDevice *oss_dev)
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{
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OSSDevice *dev_item;
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LIST_FOR_EACH_ENTRY(dev_item, &g_devices, OSSDevice, entry)
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if(IsEqualGUID(&oss_dev->guid, &dev_item->guid)){ /* already in list */
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HeapFree(GetProcessHeap(), 0, oss_dev);
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return;
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}
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list_add_tail(&g_devices, &oss_dev->entry);
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}
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static void set_device_guid(EDataFlow flow, HKEY drv_key, const WCHAR *key_name,
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GUID *guid)
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{
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HKEY key;
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BOOL opened = FALSE;
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LONG lr;
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if(!drv_key){
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lr = RegCreateKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, NULL, 0, KEY_WRITE,
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NULL, &drv_key, NULL);
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if(lr != ERROR_SUCCESS){
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ERR("RegCreateKeyEx(drv_key) failed: %lu\n", lr);
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return;
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}
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opened = TRUE;
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}
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lr = RegCreateKeyExW(drv_key, key_name, 0, NULL, 0, KEY_WRITE,
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NULL, &key, NULL);
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if(lr != ERROR_SUCCESS){
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ERR("RegCreateKeyEx(%s) failed: %lu\n", wine_dbgstr_w(key_name), lr);
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goto exit;
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}
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lr = RegSetValueExW(key, guidW, 0, REG_BINARY, (BYTE*)guid,
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sizeof(GUID));
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if(lr != ERROR_SUCCESS)
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ERR("RegSetValueEx(%s\\guid) failed: %lu\n", wine_dbgstr_w(key_name), lr);
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RegCloseKey(key);
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exit:
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if(opened)
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RegCloseKey(drv_key);
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}
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void WINAPI get_device_guid(EDataFlow flow, const char *device, GUID *guid)
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{
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OSSDevice *oss_dev;
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HKEY key = NULL, dev_key;
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DWORD type, size = sizeof(*guid);
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WCHAR key_name[256];
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const unsigned int dev_size = strlen(device) + 1;
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if(flow == eCapture)
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key_name[0] = '1';
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else
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key_name[0] = '0';
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key_name[1] = ',';
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MultiByteToWideChar(CP_UNIXCP, 0, device, -1, key_name + 2, ARRAY_SIZE(key_name) - 2);
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if(RegOpenKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, KEY_WRITE|KEY_READ, &key) == ERROR_SUCCESS){
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if(RegOpenKeyExW(key, key_name, 0, KEY_READ, &dev_key) == ERROR_SUCCESS){
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if(RegQueryValueExW(dev_key, guidW, 0, &type,
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(BYTE*)guid, &size) == ERROR_SUCCESS){
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if(type == REG_BINARY){
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RegCloseKey(dev_key);
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RegCloseKey(key);
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goto exit;
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}
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ERR("Invalid type for device %s GUID: %lu; ignoring and overwriting\n",
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wine_dbgstr_w(key_name), type);
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}
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RegCloseKey(dev_key);
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}
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}
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CoCreateGuid(guid);
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set_device_guid(flow, key, key_name, guid);
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exit:
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if(key)
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RegCloseKey(key);
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oss_dev = HeapAlloc(GetProcessHeap(), 0, offsetof(OSSDevice, devnode[dev_size]));
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if(oss_dev){
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oss_dev->flow = flow;
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oss_dev->guid = *guid;
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memcpy(oss_dev->devnode, device, dev_size);
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device_add(oss_dev);
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}
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}
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BOOL WINAPI get_device_name_from_guid(GUID *guid, char **name, EDataFlow *flow)
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{
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OSSDevice *dev_item;
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LIST_FOR_EACH_ENTRY(dev_item, &g_devices, OSSDevice, entry){
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if(!IsEqualGUID(guid, &dev_item->guid))
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continue;
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if(!(*name = strdup(dev_item->devnode)))
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return FALSE;
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*flow = dev_item->flow;
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return TRUE;
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}
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return FALSE;
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}
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