dll/win32/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
  32 #include "wincodecs_private.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  37
  38 extern HRESULT WINAPI WIC_DllGetClassObject(REFCLSID, REFIID, LPVOID *) DECLSPEC_HIDDEN;
  39
  40 typedef struct {
  41     REFCLSID classid;
  42     class_constructor constructor;
  43 } classinfo;
  44
  45 static const classinfo wic_classes[] = {
  46     {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
  47     {&CLSID_WICImagingFactory2, 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_WICGifEncoder, GifEncoder_CreateInstance},
  54     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
  55     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
  56     {&CLSID_WICJpegEncoder, JpegEncoder_CreateInstance},
  57     {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
  58     {&CLSID_WICTiffEncoder, TiffEncoder_CreateInstance},
  59     {&CLSID_WICIcnsEncoder, IcnsEncoder_CreateInstance},
  60     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
  61     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
  62     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
  63     {&CLSID_WICIfdMetadataReader, IfdMetadataReader_CreateInstance},
  64     {&CLSID_WICPngChrmMetadataReader, PngChrmReader_CreateInstance},
  65     {&CLSID_WICPngGamaMetadataReader, PngGamaReader_CreateInstance},
  66     {&CLSID_WICPngTextMetadataReader, PngTextReader_CreateInstance},
  67     {&CLSID_WICLSDMetadataReader, LSDReader_CreateInstance},
  68     {&CLSID_WICIMDMetadataReader, IMDReader_CreateInstance},
  69     {&CLSID_WICGCEMetadataReader, GCEReader_CreateInstance},
  70     {&CLSID_WICAPEMetadataReader, APEReader_CreateInstance},
  71     {&CLSID_WICGifCommentMetadataReader, GifCommentReader_CreateInstance},
  72     {0}};
  73
  74 typedef struct {
  75     IClassFactory           IClassFactory_iface;
  76     LONG                    ref;
  77     const classinfo         *info;
  78 } ClassFactoryImpl;
  79
  80 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  81 {
  82     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
  83 }
  84
  85 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  86     REFIID iid, void **ppv)
  87 {
  88     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  89     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  90
  91     if (!ppv) return E_INVALIDARG;
  92
  93     if (IsEqualIID(&IID_IUnknown, iid) ||
  94         IsEqualIID(&IID_IClassFactory, iid))
  95     {
  96         *ppv = &This->IClassFactory_iface;
  97     }
  98     else
  99     {
 100         *ppv = NULL;
 101         return E_NOINTERFACE;
 102     }
 103
 104     IUnknown_AddRef((IUnknown*)*ppv);
 105     return S_OK;
 106 }
 107
 108 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
 109 {
 110     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 111     ULONG ref = InterlockedIncrement(&This->ref);
 112
 113     TRACE("(%p) refcount=%u\n", iface, ref);
 114
 115     return ref;
 116 }
 117
 118 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
 119 {
 120     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 121     ULONG ref = InterlockedDecrement(&This->ref);
 122
 123     TRACE("(%p) refcount=%u\n", iface, ref);
 124
 125     if (ref == 0)
 126         HeapFree(GetProcessHeap(), 0, This);
 127
 128     return ref;
 129 }
 130
 131 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 132     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 133 {
 134     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 135
 136     *ppv = NULL;
 137
 138     if (pUnkOuter) return CLASS_E_NOAGGREGATION;
 139
 140     return This->info->constructor(riid, ppv);
 141 }
 142
 143 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 144 {
 145     TRACE("(%p, %i): stub\n", iface, lock);
 146     return E_NOTIMPL;
 147 }
 148
 149 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 150     ClassFactoryImpl_QueryInterface,
 151     ClassFactoryImpl_AddRef,
 152     ClassFactoryImpl_Release,
 153     ClassFactoryImpl_CreateInstance,
 154     ClassFactoryImpl_LockServer
 155 };
 156
 157 static HRESULT ClassFactoryImpl_Constructor(const classinfo *info, REFIID riid, LPVOID *ppv)
 158 {
 159     ClassFactoryImpl *This;
 160     HRESULT ret;
 161
 162     *ppv = NULL;
 163
 164     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 165     if (!This) return E_OUTOFMEMORY;
 166
 167     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
 168     This->ref = 1;
 169     This->info = info;
 170
 171     ret = IClassFactory_QueryInterface(&This->IClassFactory_iface, riid, ppv);
 172     IClassFactory_Release(&This->IClassFactory_iface);
 173
 174     return ret;
 175 }
 176
 177 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 178 {
 179     HRESULT ret;
 180     const classinfo *info=NULL;
 181     int i;
 182
 183     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 184
 185     if (!rclsid || !iid || !ppv)
 186         return E_INVALIDARG;
 187
 188     *ppv = NULL;
 189
 190     for (i=0; wic_classes[i].classid; i++)
 191     {
 192         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 193         {
 194             info = &wic_classes[i];
 195             break;
 196         }
 197     }
 198
 199     if (info)
 200         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 201     else
 202         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
 203
 204     TRACE("<-- %08X\n", ret);
 205     return ret;
 206 }
 207
 208 HRESULT create_instance(CLSID *clsid, const IID *iid, void **ppv)
 209 {
 210     int i;
 211
 212     for (i=0; wic_classes[i].classid; i++)
 213         if (IsEqualCLSID(wic_classes[i].classid, clsid))
 214             return wic_classes[i].constructor(iid, ppv);
 215
 216     return CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, iid, ppv);
 217 }