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 #include "wine/unicode.h"
  49
  50 WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
  51
  52 static HINSTANCE instance;
  53
  54 DriverFuncs drvs;
  55
  56 static BOOL load_driver(const WCHAR *name)
  57 {
  58     WCHAR driver_module[264];
  59     static const WCHAR wineW[] = {'w','i','n','e',0};
  60     static const WCHAR dotdrvW[] = {'.','d','r','v',0};
  61
  62     lstrcpyW(driver_module, wineW);
  63     lstrcatW(driver_module, name);
  64     lstrcatW(driver_module, dotdrvW);
  65
  66     TRACE("Attempting to load %s\n", wine_dbgstr_w(driver_module));
  67
  68     drvs.module = LoadLibraryW(driver_module);
  69     if(!drvs.module){
  70         TRACE("Unable to load %s: %u\n", wine_dbgstr_w(driver_module),
  71                 GetLastError());
  72         return FALSE;
  73     }
  74
  75 #define LDFC(n) do { drvs.p##n = (void*)GetProcAddress(drvs.module, #n);\
  76         if(!drvs.p##n) { FreeLibrary(drvs.module); return FALSE; } } while(0)
  77     LDFC(GetEndpointIDs);
  78     LDFC(GetAudioEndpoint);
  79     LDFC(GetAudioSessionManager);
  80 #undef LDFC
  81
  82     TRACE("Successfully loaded %s\n", wine_dbgstr_w(driver_module));
  83
  84     return TRUE;
  85 }
  86
  87 static BOOL init_driver(void)
  88 {
  89     static const WCHAR alsaW[] = {'a','l','s','a',0};
  90     static const WCHAR ossW[] = {'o','s','s',0};
  91     static const WCHAR coreaudioW[] = {'c','o','r','e','a','u','d','i','o',0};
  92     static const WCHAR *default_drivers[] = { alsaW, coreaudioW, ossW };
  93     static const WCHAR drv_key[] = {'S','o','f','t','w','a','r','e','\\',
  94         'W','i','n','e','\\','D','r','i','v','e','r','s',0};
  95     static const WCHAR drv_value[] = {'A','u','d','i','o',0};
  96     HKEY key;
  97     UINT i;
  98
  99     if(drvs.module)
 100         return TRUE;
 101
 102     if(RegOpenKeyW(HKEY_CURRENT_USER, drv_key, &key) == ERROR_SUCCESS){
 103         WCHAR driver_name[256], *p, *next;
 104         DWORD size = sizeof(driver_name);
 105
 106         if(RegQueryValueExW(key, drv_value, 0, NULL, (BYTE*)driver_name,
 107                     &size) == ERROR_SUCCESS){
 108             RegCloseKey(key);
 109
 110             if(driver_name[0] == '\0')
 111                 return TRUE;
 112
 113             for(next = p = driver_name; next; p = next + 1){
 114                 next = strchrW(p, ',');
 115                 if(next)
 116                     *next = '\0';
 117
 118                 if(load_driver(p))
 119                     return TRUE;
 120
 121                 TRACE("Failed to load driver: %s\n", wine_dbgstr_w(driver_name));
 122             }
 123
 124             ERR("No drivers in the registry loaded successfully!\n");
 125             return FALSE;
 126         }
 127
 128         RegCloseKey(key);
 129     }
 130
 131     for(i = 0; i < sizeof(default_drivers)/sizeof(*default_drivers); ++i)
 132         if(load_driver(default_drivers[i]))
 133             return TRUE;
 134
 135     return FALSE;
 136 }
 137
 138 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 139 {
 140     TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
 141
 142     switch (fdwReason)
 143     {
 144         case DLL_PROCESS_ATTACH:
 145             instance = hinstDLL;
 146             DisableThreadLibraryCalls(hinstDLL);
 147             break;
 148         case DLL_PROCESS_DETACH:
 149             MMDevEnum_Free();
 150             break;
 151     }
 152
 153     return TRUE;
 154 }
 155
 156 HRESULT WINAPI DllCanUnloadNow(void)
 157 {
 158     return S_FALSE;
 159 }
 160
 161 typedef HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
 162
 163 typedef struct {
 164     IClassFactory IClassFactory_iface;
 165     REFCLSID rclsid;
 166     FnCreateInstance pfnCreateInstance;
 167 } IClassFactoryImpl;
 168
 169 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 170 {
 171     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 172 }
 173
 174 static HRESULT WINAPI
 175 MMCF_QueryInterface(LPCLASSFACTORY iface, REFIID riid, LPVOID *ppobj)
 176 {
 177     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 178     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
 179     if (ppobj == NULL)
 180         return E_POINTER;
 181     if (IsEqualIID(riid, &IID_IUnknown) ||
 182         IsEqualIID(riid, &IID_IClassFactory))
 183     {
 184         *ppobj = iface;
 185         IUnknown_AddRef(iface);
 186         return S_OK;
 187     }
 188     *ppobj = NULL;
 189     return E_NOINTERFACE;
 190 }
 191
 192 static ULONG WINAPI MMCF_AddRef(LPCLASSFACTORY iface)
 193 {
 194     return 2;
 195 }
 196
 197 static ULONG WINAPI MMCF_Release(LPCLASSFACTORY iface)
 198 {
 199     /* static class, won't be freed */
 200     return 1;
 201 }
 202
 203 static HRESULT WINAPI MMCF_CreateInstance(
 204     LPCLASSFACTORY iface,
 205     LPUNKNOWN pOuter,
 206     REFIID riid,
 207     LPVOID *ppobj)
 208 {
 209     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 210     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 211
 212     if (pOuter)
 213         return CLASS_E_NOAGGREGATION;
 214
 215     if (ppobj == NULL) {
 216         WARN("invalid parameter\n");
 217         return E_POINTER;
 218     }
 219     *ppobj = NULL;
 220     return This->pfnCreateInstance(riid, ppobj);
 221 }
 222
 223 static HRESULT WINAPI MMCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 224 {
 225     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 226     FIXME("(%p, %d) stub!\n", This, dolock);
 227     return S_OK;
 228 }
 229
 230 static const IClassFactoryVtbl MMCF_Vtbl = {
 231     MMCF_QueryInterface,
 232     MMCF_AddRef,
 233     MMCF_Release,
 234     MMCF_CreateInstance,
 235     MMCF_LockServer
 236 };
 237
 238 static IClassFactoryImpl MMDEVAPI_CF[] = {
 239     { { &MMCF_Vtbl }, &CLSID_MMDeviceEnumerator, (FnCreateInstance)MMDevEnum_Create }
 240 };
 241
 242 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 243 {
 244     int i = 0;
 245     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 246
 247     if(!init_driver()){
 248         ERR("Driver initialization failed\n");
 249         return E_FAIL;
 250     }
 251
 252     if (ppv == NULL) {
 253         WARN("invalid parameter\n");
 254         return E_INVALIDARG;
 255     }
 256
 257     *ppv = NULL;
 258
 259     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 260         !IsEqualIID(riid, &IID_IUnknown)) {
 261         WARN("no interface for %s\n", debugstr_guid(riid));
 262         return E_NOINTERFACE;
 263     }
 264
 265     for (i = 0; i < sizeof(MMDEVAPI_CF)/sizeof(MMDEVAPI_CF[0]); ++i)
 266     {
 267         if (IsEqualGUID(rclsid, MMDEVAPI_CF[i].rclsid)) {
 268             IUnknown_AddRef(&MMDEVAPI_CF[i].IClassFactory_iface);
 269             *ppv = &MMDEVAPI_CF[i];
 270             return S_OK;
 271         }
 272         i++;
 273     }
 274
 275     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 276          debugstr_guid(riid), ppv);
 277     return CLASS_E_CLASSNOTAVAILABLE;
 278 }
 279
 280 /***********************************************************************
 281  *              DllRegisterServer (MMDEVAPI.@)
 282  */
 283 HRESULT WINAPI DllRegisterServer(void)
 284 {
 285     return __wine_register_resources( instance );
 286 }
 287
 288 /***********************************************************************
 289  *              DllUnregisterServer (MMDEVAPI.@)
 290  */
 291 HRESULT WINAPI DllUnregisterServer(void)
 292 {
 293     return __wine_unregister_resources( instance );
 294 }