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 extern HRESULT WINAPI WIC_DllGetClassObject(REFCLSID, REFIID, LPVOID *) DECLSPEC_HIDDEN;
  40
  41 typedef struct {
  42     REFCLSID classid;
  43     HRESULT (*constructor)(IUnknown*,REFIID,void**);
  44 } classinfo;
  45
  46 static classinfo wic_classes[] = {
  47     {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
  48     {&CLSID_WICBmpDecoder, BmpDecoder_CreateInstance},
  49     {&CLSID_WICPngDecoder, PngDecoder_CreateInstance},
  50     {&CLSID_WICPngEncoder, PngEncoder_CreateInstance},
  51     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
  52     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
  53     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
  54     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
  55     {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
  56     {&CLSID_WICIcnsEncoder, IcnsEncoder_CreateInstance},
  57     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
  58     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
  59     {0}};
  60
  61 typedef struct {
  62     const IClassFactoryVtbl *lpIClassFactoryVtbl;
  63     LONG                    ref;
  64     classinfo               *info;
  65 } ClassFactoryImpl;
  66
  67 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  68     REFIID iid, void **ppv)
  69 {
  70     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  71     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  72
  73     if (!ppv) return E_INVALIDARG;
  74
  75     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IClassFactory, iid))
  76     {
  77         *ppv = This;
  78     }
  79     else
  80     {
  81         *ppv = NULL;
  82         return E_NOINTERFACE;
  83     }
  84
  85     IUnknown_AddRef((IUnknown*)*ppv);
  86     return S_OK;
  87 }
  88
  89 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
  90 {
  91     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
  92     ULONG ref = InterlockedIncrement(&This->ref);
  93
  94     TRACE("(%p) refcount=%u\n", iface, ref);
  95
  96     return ref;
  97 }
  98
  99 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
 100 {
 101     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
 102     ULONG ref = InterlockedDecrement(&This->ref);
 103
 104     TRACE("(%p) refcount=%u\n", iface, ref);
 105
 106     if (ref == 0)
 107         HeapFree(GetProcessHeap(), 0, This);
 108
 109     return ref;
 110 }
 111
 112 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 113     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 114 {
 115     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
 116
 117     return This->info->constructor(pUnkOuter, riid, ppv);
 118 }
 119
 120 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 121 {
 122     TRACE("(%p, %i): stub\n", iface, lock);
 123     return E_NOTIMPL;
 124 }
 125
 126 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 127     ClassFactoryImpl_QueryInterface,
 128     ClassFactoryImpl_AddRef,
 129     ClassFactoryImpl_Release,
 130     ClassFactoryImpl_CreateInstance,
 131     ClassFactoryImpl_LockServer
 132 };
 133
 134 static HRESULT ClassFactoryImpl_Constructor(classinfo *info, REFIID riid, LPVOID *ppv)
 135 {
 136     ClassFactoryImpl *This;
 137     HRESULT ret;
 138
 139     *ppv = NULL;
 140
 141     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 142     if (!This) return E_OUTOFMEMORY;
 143
 144     This->lpIClassFactoryVtbl = &ClassFactoryImpl_Vtbl;
 145     This->ref = 1;
 146     This->info = info;
 147
 148     ret = IClassFactory_QueryInterface((IClassFactory*)This, riid, ppv);
 149     IClassFactory_Release((IClassFactory*)This);
 150
 151     return ret;
 152 }
 153
 154 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 155 {
 156     HRESULT ret;
 157     classinfo *info=NULL;
 158     int i;
 159
 160     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 161
 162     if (!rclsid || !iid || !ppv)
 163         return E_INVALIDARG;
 164
 165     *ppv = NULL;
 166
 167     for (i=0; wic_classes[i].classid; i++)
 168     {
 169         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 170         {
 171             info = &wic_classes[i];
 172             break;
 173         }
 174     }
 175
 176     if (info)
 177         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 178     else
 179         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
 180
 181     TRACE("<-- %08X\n", ret);
 182     return ret;
 183 }