dlls/mmdevapi/main.c

   1 /*
   2  * Copyright 2009 Maarten Lankhorst
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define CINTERFACE
  24 #define COBJMACROS
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "wine/debug.h"
  28
  29 #include "initguid.h"
  30 #include "ole2.h"
  31 #include "mmdeviceapi.h"
  32
  33 #include "mmdevapi.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(mmdevapi);
  36
  37 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  38 {
  39     TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
  40
  41     switch (fdwReason)
  42     {
  43         case DLL_PROCESS_ATTACH:
  44             DisableThreadLibraryCalls(hinstDLL);
  45             break;
  46         case DLL_PROCESS_DETACH:
  47             MMDevEnum_Free();
  48             break;
  49     }
  50
  51     return TRUE;
  52 }
  53
  54 HRESULT WINAPI DllCanUnloadNow(void)
  55 {
  56     return S_FALSE;
  57 }
  58
  59 typedef HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
  60
  61 typedef struct {
  62     const IClassFactoryVtbl *lpVtbl;
  63     REFCLSID rclsid;
  64     FnCreateInstance pfnCreateInstance;
  65 } IClassFactoryImpl;
  66
  67 static HRESULT WINAPI
  68 MMCF_QueryInterface(LPCLASSFACTORY iface, REFIID riid, LPVOID *ppobj)
  69 {
  70     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  71     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
  72     if (ppobj == NULL)
  73         return E_POINTER;
  74     if (IsEqualIID(riid, &IID_IUnknown) ||
  75         IsEqualIID(riid, &IID_IClassFactory))
  76     {
  77         *ppobj = iface;
  78         IUnknown_AddRef(iface);
  79         return S_OK;
  80     }
  81     *ppobj = NULL;
  82     return E_NOINTERFACE;
  83 }
  84
  85 static ULONG WINAPI MMCF_AddRef(LPCLASSFACTORY iface)
  86 {
  87     return 2;
  88 }
  89
  90 static ULONG WINAPI MMCF_Release(LPCLASSFACTORY iface)
  91 {
  92     /* static class, won't be freed */
  93     return 1;
  94 }
  95
  96 static HRESULT WINAPI MMCF_CreateInstance(
  97     LPCLASSFACTORY iface,
  98     LPUNKNOWN pOuter,
  99     REFIID riid,
 100     LPVOID *ppobj)
 101 {
 102     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 103     TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
 104
 105     if (pOuter)
 106         return CLASS_E_NOAGGREGATION;
 107
 108     if (ppobj == NULL) {
 109         WARN("invalid parameter\n");
 110         return E_POINTER;
 111     }
 112     *ppobj = NULL;
 113     return This->pfnCreateInstance(riid, ppobj);
 114 }
 115
 116 static HRESULT WINAPI MMCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 117 {
 118     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 119     FIXME("(%p, %d) stub!\n", This, dolock);
 120     return S_OK;
 121 }
 122
 123 static const IClassFactoryVtbl MMCF_Vtbl = {
 124     MMCF_QueryInterface,
 125     MMCF_AddRef,
 126     MMCF_Release,
 127     MMCF_CreateInstance,
 128     MMCF_LockServer
 129 };
 130
 131 static IClassFactoryImpl MMDEVAPI_CF[] = {
 132     { &MMCF_Vtbl, &CLSID_MMDeviceEnumerator, (FnCreateInstance)MMDevEnum_Create }
 133 };
 134
 135 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 136 {
 137     int i = 0;
 138     TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 139
 140     if (ppv == NULL) {
 141         WARN("invalid parameter\n");
 142         return E_INVALIDARG;
 143     }
 144
 145     *ppv = NULL;
 146
 147     if (!IsEqualIID(riid, &IID_IClassFactory) &&
 148         !IsEqualIID(riid, &IID_IUnknown)) {
 149         WARN("no interface for %s\n", debugstr_guid(riid));
 150         return E_NOINTERFACE;
 151     }
 152
 153     for (i = 0; i < sizeof(MMDEVAPI_CF)/sizeof(MMDEVAPI_CF[0]); ++i)
 154     {
 155         if (IsEqualGUID(rclsid, MMDEVAPI_CF[i].rclsid)) {
 156             IUnknown_AddRef((IClassFactory*) &MMDEVAPI_CF[i]);
 157             *ppv = &MMDEVAPI_CF[i];
 158             return S_OK;
 159         }
 160         i++;
 161     }
 162
 163     WARN("(%s, %s, %p): no class found.\n", debugstr_guid(rclsid),
 164          debugstr_guid(riid), ppv);
 165     return CLASS_E_CLASSNOTAVAILABLE;
 166 }