dlls/mmdevapi/main.c

   1 /*
   2  * Copyright 2009 Maarten Lankhorst
   3  * Copyright 2011 Andrew Eikum for CodeWeavers
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "config.h"
  21 #include "wine/port.h"
  22
  23 #include <stdarg.h>
  24
  25 #define COBJMACROS
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "wine/library.h"
  30
  31 #include "ole2.h"
  32 #include "olectl.h"
  33 #include "rpcproxy.h"
  34 #include "propsys.h"
  35 #include "initguid.h"
  36 #include "propkeydef.h"
  37 #include "mmdeviceapi.h"
  38 #include "dshow.h"
  39 #include "dsound.h"
  40 #include "audioclient.h"
  41 #include "endpointvolume.h"
  42 #include "audiopolicy.h"
  43 #include "devpkey.h"
  44 #include "winreg.h"
  45
  46 #include "mmdevapi.h"
  47 #include "wine/debug.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
  50
  51 static HINSTANCE instance;
  52
  53 DriverFuncs drvs;
  54
  55 static BOOL load_driver(const WCHAR *name)
  56 {
  57     WCHAR driver_module[264];
  58     static const WCHAR wineW[] = {'w','i','n','e',0};
  59     static const WCHAR dotdrvW[] = {'.','d','r','v',0};
  60
  61     lstrcpyW(driver_module, wineW);
  62     lstrcatW(driver_module, name);
  63     lstrcatW(driver_module, dotdrvW);
  64
  65     TRACE("Attempting to load %s\n", wine_dbgstr_w(driver_module));
  66
  67     drvs.module = LoadLibraryW(driver_module);
  68     if(!drvs.module){
  69         TRACE("Unable to load %s: %u\n", wine_dbgstr_w(driver_module),
  70                 GetLastError());
  71         return FALSE;
  72     }
  73
  74 #define LDFC(n) do { drvs.p##n = (void*)GetProcAddress(drvs.module, #n);\
  75         if(!drvs.p##n) { FreeLibrary(drvs.module); return FALSE; } } while(0)
  76     LDFC(GetEndpointIDs);
  77     LDFC(GetAudioEndpoint);
  78     LDFC(GetAudioSessionManager);
  79 #undef LDFC
  80
  81     TRACE("Successfully loaded %s\n", wine_dbgstr_w(driver_module));
  82
  83     return TRUE;
  84 }
  85
  86 static BOOL init_driver(void)
  87 {
  88     static const WCHAR alsaW[] = {'a','l','s','a',0};
  89     static const WCHAR ossW[] = {'o','s','s',0};
  90     static const WCHAR coreaudioW[] = {'c','o','r','e','a','u','d','i','o',0};
  91     static const WCHAR *default_drivers[] = { alsaW, coreaudioW, ossW };
  92     static const WCHAR drv_key[] = {'S','o','f','t','w','a','r','e','\\',
  93         'W','i','n','e','\\','D','r','i','v','e','r','s',0};
  94     static const WCHAR drv_value[] = {'A','u','d','i','o',0};
  95     HKEY key;
  96     UINT i;
  97
  98     if(drvs.module)
  99         return TRUE;
 100
 101     if(RegOpenKeyW(HKEY_CURRENT_USER, drv_key, &key) == ERROR_SUCCESS){
 102         WCHAR driver_name[256];
 103         DWORD size = sizeof(driver_name);
 104
 105         if(RegQueryValueExW(key, drv_value, 0, NULL, (BYTE*)driver_name,
 106                     &size) == ERROR_SUCCESS){
 107             BOOL ret = load_driver(driver_name);
 108             RegCloseKey(key);
 109             if(!ret)
 110                 ERR("Failed to load driver: %s\n", wine_dbgstr_w(driver_name));
 111             return ret;
 112         }
 113
 114         RegCloseKey(key);
 115     }
 116
 117     for(i = 0; i < sizeof(default_drivers)/sizeof(*default_drivers); ++i)
 118         if(load_driver(default_drivers[i]))
 119             return TRUE;
 120
 121     return FALSE;
 122 }
 123
 124 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 125 {
 126     TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
 127
 128     switch (fdwReason)
 129     {
 130         case DLL_PROCESS_ATTACH:
 131             instance = hinstDLL;
 132             DisableThreadLibraryCalls(hinstDLL);
 133             break;
 134         case DLL_PROCESS_DETACH:
 135             MMDevEnum_Free();
 136             break;
 137     }
 138
 139     return TRUE;
 140 }
 141
 142 HRESULT WINAPI DllCanUnloadNow(void)
 143 {
 144     return S_FALSE;
 145 }
 146
 147 typedef HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 148
 149 typedef struct {
 150     IClassFactory IClassFactory_iface;
 151     REFCLSID rclsid;
 152     FnCreateInstance pfnCreateInstance;
 153 } IClassFactoryImpl;
 154
 155 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 156 {
 157     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 158 }
 159
 160 static HRESULT WINAPI
 161 MMCF_QueryInterface(LPCLASSFACTORY iface, REFIID riid, LPVOID *ppobj)
 162 {
 163     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 164     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 165     if (ppobj == NULL)
 166         return E_POINTER;
 167     if (IsEqualIID(riid, &IID_IUnknown) ||
 168         IsEqualIID(riid, &IID_IClassFactory))
 169     {
 170         *ppobj = iface;
 171         IUnknown_AddRef(iface);
 172         return S_OK;
 173     }
 174     *ppobj = NULL;
 175     return E_NOINTERFACE;
 176 }
 177
 178 static ULONG WINAPI MMCF_AddRef(LPCLASSFACTORY iface)
 179 {
 180     return 2;
 181 }
 182
 183 static ULONG WINAPI MMCF_Release(LPCLASSFACTORY iface)
 184 {
 185     /* static class, won't be freed */
 186     return 1;
 187 }
 188
 189 static HRESULT WINAPI MMCF_CreateInstance(
 190     LPCLASSFACTORY iface,
 191     LPUNKNOWN pOuter,
 192     REFIID riid,
 193     LPVOID *ppobj)
 194 {
 195     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 196     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 197
 198     if (pOuter)
 199         return CLASS_E_NOAGGREGATION;
 200
 201     if (ppobj == NULL) {
 202         WARN("invalid parameter\n");
 203         return E_POINTER;
 204     }
 205     *ppobj = NULL;
 206     return This->pfnCreateInstance(riid, ppobj);
 207 }
 208
 209 static HRESULT WINAPI MMCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 210 {
 211     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 212     FIXME("(%p, %d) stub!\n", This, dolock);
 213     return S_OK;
 214 }
 215
 216 static const IClassFactoryVtbl MMCF_Vtbl = {
 217     MMCF_QueryInterface,
 218     MMCF_AddRef,
 219     MMCF_Release,
 220     MMCF_CreateInstance,
 221     MMCF_LockServer
 222 };
 223
 224 static IClassFactoryImpl MMDEVAPI_CF[] = {
 225     { { &MMCF_Vtbl }, &CLSID_MMDeviceEnumerator, (FnCreateInstance)MMDevEnum_Create }
 226 };
 227
 228 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 229 {
 230     int i = 0;
 231     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 232
 233     if(!init_driver()){
 234         ERR("Driver initialization failed\n");
 235         return E_FAIL;
 236     }
 237
 238     if (ppv == NULL) {
 239         WARN("invalid parameter\n");
 240         return E_INVALIDARG;
 241     }
 242
 243     *ppv = NULL;
 244
 245     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 246         !IsEqualIID(riid, &IID_IUnknown)) {
 247         WARN("no interface for %s\n", debugstr_guid(riid));
 248         return E_NOINTERFACE;
 249     }
 250
 251     for (i = 0; i < sizeof(MMDEVAPI_CF)/sizeof(MMDEVAPI_CF[0]); ++i)
 252     {
 253         if (IsEqualGUID(rclsid, MMDEVAPI_CF[i].rclsid)) {
 254             IUnknown_AddRef(&MMDEVAPI_CF[i].IClassFactory_iface);
 255             *ppv = &MMDEVAPI_CF[i];
 256             return S_OK;
 257         }
 258         i++;
 259     }
 260
 261     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 262          debugstr_guid(riid), ppv);
 263     return CLASS_E_CLASSNOTAVAILABLE;
 264 }
 265
 266 /***********************************************************************
 267  *              DllRegisterServer (MMDEVAPI.@)
 268  */
 269 HRESULT WINAPI DllRegisterServer(void)
 270 {
 271     return __wine_register_resources( instance, NULL );
 272 }
 273
 274 /***********************************************************************
 275  *              DllUnregisterServer (MMDEVAPI.@)
 276  */
 277 HRESULT WINAPI DllUnregisterServer(void)
 278 {
 279     return __wine_unregister_resources( instance, NULL );
 280 }