git.oblomov.eu Git - wine/blob - dlls/windowscodecs/clsfactory.c

   1 /*
   2  * Copyright 2009 Vincent Povirk 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 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winreg.h"
  28 #include "objbase.h"
  29 #include "ocidl.h"
  30 #include "initguid.h"
  31 #include "wincodec.h"
  32
  33 #include "wincodecs_private.h"
  34
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  38
  39 typedef struct {
  40     REFCLSID classid;
  41     HRESULT (*constructor)(IUnknown*,REFIID,void**);
  42 } classinfo;
  43
  44 static classinfo wic_classes[] = {
  45     {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
  46     {&CLSID_WICBmpDecoder, BmpDecoder_CreateInstance},
  47     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
  48     {0}};
  49
  50 typedef struct {
  51     const IClassFactoryVtbl *lpIClassFactoryVtbl;
  52     LONG                    ref;
  53     classinfo               *info;
  54 } ClassFactoryImpl;
  55
  56 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  57     REFIID iid, void **ppv)
  58 {
  59     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  60     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  61
  62     if (!ppv) return E_INVALIDARG;
  63
  64     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IClassFactory, iid))
  65     {
  66         *ppv = This;
  67     }
  68     else
  69     {
  70         *ppv = NULL;
  71         return E_NOINTERFACE;
  72     }
  73
  74     IUnknown_AddRef((IUnknown*)*ppv);
  75     return S_OK;
  76 }
  77
  78 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
  79 {
  80     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  81     ULONG ref = InterlockedIncrement(&This->ref);
  82
  83     TRACE("(%p) refcount=%u\n", iface, ref);
  84
  85     return ref;
  86 }
  87
  88 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
  89 {
  90     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  91     ULONG ref = InterlockedDecrement(&This->ref);
  92
  93     TRACE("(%p) refcount=%u\n", iface, ref);
  94
  95     if (ref == 0)
  96         HeapFree(GetProcessHeap(), 0, This);
  97
  98     return ref;
  99 }
 100
 101 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 102     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 103 {
 104     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
 105
 106     return This->info->constructor(pUnkOuter, riid, ppv);
 107 }
 108
 109 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 110 {
 111     TRACE("(%p, %i): stub\n", iface, lock);
 112     return E_NOTIMPL;
 113 }
 114
 115 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 116     ClassFactoryImpl_QueryInterface,
 117     ClassFactoryImpl_AddRef,
 118     ClassFactoryImpl_Release,
 119     ClassFactoryImpl_CreateInstance,
 120     ClassFactoryImpl_LockServer
 121 };
 122
 123 static HRESULT ClassFactoryImpl_Constructor(classinfo *info, REFIID riid, LPVOID *ppv)
 124 {
 125     ClassFactoryImpl *This;
 126     HRESULT ret;
 127
 128     *ppv = NULL;
 129
 130     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 131     if (!This) return E_OUTOFMEMORY;
 132
 133     This->lpIClassFactoryVtbl = &ClassFactoryImpl_Vtbl;
 134     This->ref = 1;
 135     This->info = info;
 136
 137     ret = IClassFactory_QueryInterface((IClassFactory*)This, riid, ppv);
 138     IClassFactory_Release((IClassFactory*)This);
 139
 140     return ret;
 141 }
 142
 143 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 144 {
 145     HRESULT ret;
 146     classinfo *info=NULL;
 147     int i;
 148
 149     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 150
 151     if (!rclsid || !iid || !ppv)
 152         return E_INVALIDARG;
 153
 154     *ppv = NULL;
 155
 156     for (i=0; wic_classes[i].classid; i++)
 157     {
 158         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 159         {
 160             info = &wic_classes[i];
 161             break;
 162         }
 163     }
 164
 165     if (info)
 166         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 167     else
 168         ret = CLASS_E_CLASSNOTAVAILABLE;
 169
 170     TRACE("<-- %08X\n", ret);
 171     return ret;
 172 }