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 #include "wincodecsdk.h"
  33
  34 #include "wincodecs_private.h"
  35
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  39
  40 extern HRESULT WINAPI WIC_DllGetClassObject(REFCLSID, REFIID, LPVOID *) DECLSPEC_HIDDEN;
  41
  42 typedef struct {
  43     REFCLSID classid;
  44     HRESULT (*constructor)(IUnknown*,REFIID,void**);
  45 } classinfo;
  46
  47 static classinfo wic_classes[] = {
  48     {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
  49     {&CLSID_WICBmpDecoder, BmpDecoder_CreateInstance},
  50     {&CLSID_WICPngDecoder, PngDecoder_CreateInstance},
  51     {&CLSID_WICPngEncoder, PngEncoder_CreateInstance},
  52     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
  53     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
  54     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
  55     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
  56     {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
  57     {&CLSID_WICTiffEncoder, TiffEncoder_CreateInstance},
  58     {&CLSID_WICIcnsEncoder, IcnsEncoder_CreateInstance},
  59     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
  60     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
  61     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
  62     {0}};
  63
  64 typedef struct {
  65     IClassFactory           IClassFactory_iface;
  66     LONG                    ref;
  67     classinfo               *info;
  68 } ClassFactoryImpl;
  69
  70 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  71 {
  72     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
  73 }
  74
  75 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  76     REFIID iid, void **ppv)
  77 {
  78     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  79     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  80
  81     if (!ppv) return E_INVALIDARG;
  82
  83     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IClassFactory, iid))
  84     {
  85         *ppv = This;
  86     }
  87     else
  88     {
  89         *ppv = NULL;
  90         return E_NOINTERFACE;
  91     }
  92
  93     IUnknown_AddRef((IUnknown*)*ppv);
  94     return S_OK;
  95 }
  96
  97 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
  98 {
  99     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 100     ULONG ref = InterlockedIncrement(&This->ref);
 101
 102     TRACE("(%p) refcount=%u\n", iface, ref);
 103
 104     return ref;
 105 }
 106
 107 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
 108 {
 109     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 110     ULONG ref = InterlockedDecrement(&This->ref);
 111
 112     TRACE("(%p) refcount=%u\n", iface, ref);
 113
 114     if (ref == 0)
 115         HeapFree(GetProcessHeap(), 0, This);
 116
 117     return ref;
 118 }
 119
 120 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 121     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 122 {
 123     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 124
 125     return This->info->constructor(pUnkOuter, riid, ppv);
 126 }
 127
 128 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 129 {
 130     TRACE("(%p, %i): stub\n", iface, lock);
 131     return E_NOTIMPL;
 132 }
 133
 134 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 135     ClassFactoryImpl_QueryInterface,
 136     ClassFactoryImpl_AddRef,
 137     ClassFactoryImpl_Release,
 138     ClassFactoryImpl_CreateInstance,
 139     ClassFactoryImpl_LockServer
 140 };
 141
 142 static HRESULT ClassFactoryImpl_Constructor(classinfo *info, REFIID riid, LPVOID *ppv)
 143 {
 144     ClassFactoryImpl *This;
 145     HRESULT ret;
 146
 147     *ppv = NULL;
 148
 149     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 150     if (!This) return E_OUTOFMEMORY;
 151
 152     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
 153     This->ref = 1;
 154     This->info = info;
 155
 156     ret = IClassFactory_QueryInterface((IClassFactory*)This, riid, ppv);
 157     IClassFactory_Release((IClassFactory*)This);
 158
 159     return ret;
 160 }
 161
 162 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 163 {
 164     HRESULT ret;
 165     classinfo *info=NULL;
 166     int i;
 167
 168     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 169
 170     if (!rclsid || !iid || !ppv)
 171         return E_INVALIDARG;
 172
 173     *ppv = NULL;
 174
 175     for (i=0; wic_classes[i].classid; i++)
 176     {
 177         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 178         {
 179             info = &wic_classes[i];
 180             break;
 181         }
 182     }
 183
 184     if (info)
 185         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 186     else
 187         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
 188
 189     TRACE("<-- %08X\n", ret);
 190     return ret;
 191 }