dlls/mfsrcsnk/factory.c

   1 /*
   2  * Copyright 2022 Nikolay Sivov for CodeWeavers
   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 #define COBJMACROS
  20
  21 #include "mfidl.h"
  22 #include "wine/mfinternal.h"
  23
  24 #include "mfsrcsnk_private.h"
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(mfplat);
  29
  30 struct class_factory
  31 {
  32     IClassFactory IClassFactory_iface;
  33     HRESULT (*create_instance)(REFIID riid, void **out);
  34 };
  35
  36 static inline struct class_factory *impl_from_IClassFactory(IClassFactory *iface)
  37 {
  38     return CONTAINING_RECORD(iface, struct class_factory, IClassFactory_iface);
  39 }
  40
  41 static HRESULT WINAPI class_factory_QueryInterface(IClassFactory *iface, REFIID riid, void **out)
  42 {
  43     if (IsEqualGUID(riid, &IID_IClassFactory) ||
  44             IsEqualGUID(riid, &IID_IUnknown))
  45     {
  46         IClassFactory_AddRef(iface);
  47         *out = iface;
  48         return S_OK;
  49     }
  50
  51     *out = NULL;
  52     WARN("Interface %s is not supported.\n", debugstr_guid(riid));
  53     return E_NOINTERFACE;
  54 }
  55
  56 static ULONG WINAPI class_factory_AddRef(IClassFactory *iface)
  57 {
  58     return 2;
  59 }
  60
  61 static ULONG WINAPI class_factory_Release(IClassFactory *iface)
  62 {
  63     return 1;
  64 }
  65
  66 static HRESULT WINAPI class_factory_CreateInstance(IClassFactory *iface, IUnknown *outer,
  67         REFIID riid, void **out)
  68 {
  69     struct class_factory *factory = impl_from_IClassFactory(iface);
  70
  71     TRACE("%p, %s, %p.\n", outer, debugstr_guid(riid), out);
  72
  73     *out = NULL;
  74
  75     if (outer)
  76         return CLASS_E_NOAGGREGATION;
  77
  78     return factory->create_instance(riid, out);
  79 }
  80
  81 static HRESULT WINAPI class_factory_LockServer(IClassFactory *iface, BOOL dolock)
  82 {
  83     FIXME("%p, %d.\n", iface, dolock);
  84
  85     return S_OK;
  86 }
  87
  88 static const IClassFactoryVtbl class_factory_vtbl =
  89 {
  90     class_factory_QueryInterface,
  91     class_factory_AddRef,
  92     class_factory_Release,
  93     class_factory_CreateInstance,
  94     class_factory_LockServer,
  95 };
  96
  97 static struct class_factory wave_sink_factory = { { &class_factory_vtbl }, wave_sink_factory_create };
  98
  99 /***********************************************************************
 100  *              DllGetClassObject (mfsrcsnk.@)
 101  */
 102 HRESULT WINAPI DllGetClassObject(REFCLSID clsid, REFIID riid, void **out)
 103 {
 104     *out = NULL;
 105
 106     if (IsEqualGUID(clsid, &CLSID_MFWAVESinkClassFactory))
 107     {
 108         return IClassFactory_QueryInterface(&wave_sink_factory.IClassFactory_iface, riid, out);
 109     }
 110     else
 111     {
 112         FIXME("Unknown clsid %s.\n", debugstr_guid(clsid));
 113         return CLASS_E_CLASSNOTAVAILABLE;
 114     }
 115 }