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 <stdarg.h>
  20
  21 #define COBJMACROS
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winreg.h"
  26 #include "objbase.h"
  27 #include "ocidl.h"
  28 #include "wincodec.h"
  29 #include "wincodecsdk.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_WICDdsDecoder, DdsDecoder_CreateInstance},
  61     {&CLSID_WICDdsEncoder, DdsEncoder_CreateInstance},
  62     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
  63     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
  64     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
  65     {&CLSID_WICIfdMetadataReader, IfdMetadataReader_CreateInstance},
  66     {&CLSID_WICPngChrmMetadataReader, PngChrmReader_CreateInstance},
  67     {&CLSID_WICPngGamaMetadataReader, PngGamaReader_CreateInstance},
  68     {&CLSID_WICPngTextMetadataReader, PngTextReader_CreateInstance},
  69     {&CLSID_WICLSDMetadataReader, LSDReader_CreateInstance},
  70     {&CLSID_WICIMDMetadataReader, IMDReader_CreateInstance},
  71     {&CLSID_WICGCEMetadataReader, GCEReader_CreateInstance},
  72     {&CLSID_WICAPEMetadataReader, APEReader_CreateInstance},
  73     {&CLSID_WICGifCommentMetadataReader, GifCommentReader_CreateInstance},
  74     {0}};
  75
  76 typedef struct {
  77     IClassFactory           IClassFactory_iface;
  78     LONG                    ref;
  79     const classinfo         *info;
  80 } ClassFactoryImpl;
  81
  82 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  83 {
  84     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
  85 }
  86
  87 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  88     REFIID iid, void **ppv)
  89 {
  90     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  91     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  92
  93     if (!ppv) return E_INVALIDARG;
  94
  95     if (IsEqualIID(&IID_IUnknown, iid) ||
  96         IsEqualIID(&IID_IClassFactory, iid))
  97     {
  98         *ppv = &This->IClassFactory_iface;
  99     }
 100     else
 101     {
 102         *ppv = NULL;
 103         return E_NOINTERFACE;
 104     }
 105
 106     IUnknown_AddRef((IUnknown*)*ppv);
 107     return S_OK;
 108 }
 109
 110 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
 111 {
 112     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 113     ULONG ref = InterlockedIncrement(&This->ref);
 114
 115     TRACE("(%p) refcount=%u\n", iface, ref);
 116
 117     return ref;
 118 }
 119
 120 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
 121 {
 122     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 123     ULONG ref = InterlockedDecrement(&This->ref);
 124
 125     TRACE("(%p) refcount=%u\n", iface, ref);
 126
 127     if (ref == 0)
 128         HeapFree(GetProcessHeap(), 0, This);
 129
 130     return ref;
 131 }
 132
 133 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 134     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 135 {
 136     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 137
 138     *ppv = NULL;
 139
 140     if (pUnkOuter) return CLASS_E_NOAGGREGATION;
 141
 142     return This->info->constructor(riid, ppv);
 143 }
 144
 145 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 146 {
 147     TRACE("(%p, %i): stub\n", iface, lock);
 148     return E_NOTIMPL;
 149 }
 150
 151 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 152     ClassFactoryImpl_QueryInterface,
 153     ClassFactoryImpl_AddRef,
 154     ClassFactoryImpl_Release,
 155     ClassFactoryImpl_CreateInstance,
 156     ClassFactoryImpl_LockServer
 157 };
 158
 159 static HRESULT ClassFactoryImpl_Constructor(const classinfo *info, REFIID riid, LPVOID *ppv)
 160 {
 161     ClassFactoryImpl *This;
 162     HRESULT ret;
 163
 164     *ppv = NULL;
 165
 166     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 167     if (!This) return E_OUTOFMEMORY;
 168
 169     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
 170     This->ref = 1;
 171     This->info = info;
 172
 173     ret = IClassFactory_QueryInterface(&This->IClassFactory_iface, riid, ppv);
 174     IClassFactory_Release(&This->IClassFactory_iface);
 175
 176     return ret;
 177 }
 178
 179 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 180 {
 181     HRESULT ret;
 182     const classinfo *info=NULL;
 183     int i;
 184
 185     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 186
 187     if (!rclsid || !iid || !ppv)
 188         return E_INVALIDARG;
 189
 190     *ppv = NULL;
 191
 192     for (i=0; wic_classes[i].classid; i++)
 193     {
 194         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 195         {
 196             info = &wic_classes[i];
 197             break;
 198         }
 199     }
 200
 201     if (info)
 202         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 203     else
 204         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
 205
 206     TRACE("<-- %08X\n", ret);
 207     return ret;
 208 }
 209
 210 HRESULT create_instance(const CLSID *clsid, const IID *iid, void **ppv)
 211 {
 212     int i;
 213
 214     for (i=0; wic_classes[i].classid; i++)
 215         if (IsEqualCLSID(wic_classes[i].classid, clsid))
 216             return wic_classes[i].constructor(iid, ppv);
 217
 218     return CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, iid, ppv);
 219 }