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     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
  49     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
  50     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
  51     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
  52     {0}};
  53
  54 typedef struct {
  55     const IClassFactoryVtbl *lpIClassFactoryVtbl;
  56     LONG                    ref;
  57     classinfo               *info;
  58 } ClassFactoryImpl;
  59
  60 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  61     REFIID iid, void **ppv)
  62 {
  63     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  64     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  65
  66     if (!ppv) return E_INVALIDARG;
  67
  68     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IClassFactory, iid))
  69     {
  70         *ppv = This;
  71     }
  72     else
  73     {
  74         *ppv = NULL;
  75         return E_NOINTERFACE;
  76     }
  77
  78     IUnknown_AddRef((IUnknown*)*ppv);
  79     return S_OK;
  80 }
  81
  82 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
  83 {
  84     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  85     ULONG ref = InterlockedIncrement(&This->ref);
  86
  87     TRACE("(%p) refcount=%u\n", iface, ref);
  88
  89     return ref;
  90 }
  91
  92 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
  93 {
  94     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  95     ULONG ref = InterlockedDecrement(&This->ref);
  96
  97     TRACE("(%p) refcount=%u\n", iface, ref);
  98
  99     if (ref == 0)
 100         HeapFree(GetProcessHeap(), 0, This);
 101
 102     return ref;
 103 }
 104
 105 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 106     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 107 {
 108     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
 109
 110     return This->info->constructor(pUnkOuter, riid, ppv);
 111 }
 112
 113 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 114 {
 115     TRACE("(%p, %i): stub\n", iface, lock);
 116     return E_NOTIMPL;
 117 }
 118
 119 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 120     ClassFactoryImpl_QueryInterface,
 121     ClassFactoryImpl_AddRef,
 122     ClassFactoryImpl_Release,
 123     ClassFactoryImpl_CreateInstance,
 124     ClassFactoryImpl_LockServer
 125 };
 126
 127 static HRESULT ClassFactoryImpl_Constructor(classinfo *info, REFIID riid, LPVOID *ppv)
 128 {
 129     ClassFactoryImpl *This;
 130     HRESULT ret;
 131
 132     *ppv = NULL;
 133
 134     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 135     if (!This) return E_OUTOFMEMORY;
 136
 137     This->lpIClassFactoryVtbl = &ClassFactoryImpl_Vtbl;
 138     This->ref = 1;
 139     This->info = info;
 140
 141     ret = IClassFactory_QueryInterface((IClassFactory*)This, riid, ppv);
 142     IClassFactory_Release((IClassFactory*)This);
 143
 144     return ret;
 145 }
 146
 147 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 148 {
 149     HRESULT ret;
 150     classinfo *info=NULL;
 151     int i;
 152
 153     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 154
 155     if (!rclsid || !iid || !ppv)
 156         return E_INVALIDARG;
 157
 158     *ppv = NULL;
 159
 160     for (i=0; wic_classes[i].classid; i++)
 161     {
 162         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 163         {
 164             info = &wic_classes[i];
 165             break;
 166         }
 167     }
 168
 169     if (info)
 170         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 171     else
 172         ret = CLASS_E_CLASSNOTAVAILABLE;
 173
 174     TRACE("<-- %08X\n", ret);
 175     return ret;
 176 }