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 "wincodec.h"
  31 #include "wincodecsdk.h"
  32 #include "initguid.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     class_constructor constructor;
  45 } classinfo;
  46
  47 static const classinfo wic_classes[] = {
  48     {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
  49     {&CLSID_WICImagingFactory2, ImagingFactory_CreateInstance},
  50     {&CLSID_WICBmpDecoder, BmpDecoder_CreateInstance},
  51     {&CLSID_WICPngDecoder, PngDecoder_CreateInstance},
  52     {&CLSID_WICPngEncoder, PngEncoder_CreateInstance},
  53     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
  54     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
  55     {&CLSID_WICGifEncoder, GifEncoder_CreateInstance},
  56     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
  57     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
  58     {&CLSID_WICJpegEncoder, JpegEncoder_CreateInstance},
  59     {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
  60     {&CLSID_WICTiffEncoder, TiffEncoder_CreateInstance},
  61     {&CLSID_WICIcnsEncoder, IcnsEncoder_CreateInstance},
  62     {&CLSID_WICDdsDecoder, DdsDecoder_CreateInstance},
  63     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
  64     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
  65     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
  66     {&CLSID_WICIfdMetadataReader, IfdMetadataReader_CreateInstance},
  67     {&CLSID_WICPngChrmMetadataReader, PngChrmReader_CreateInstance},
  68     {&CLSID_WICPngGamaMetadataReader, PngGamaReader_CreateInstance},
  69     {&CLSID_WICPngTextMetadataReader, PngTextReader_CreateInstance},
  70     {&CLSID_WICLSDMetadataReader, LSDReader_CreateInstance},
  71     {&CLSID_WICIMDMetadataReader, IMDReader_CreateInstance},
  72     {&CLSID_WICGCEMetadataReader, GCEReader_CreateInstance},
  73     {&CLSID_WICAPEMetadataReader, APEReader_CreateInstance},
  74     {&CLSID_WICGifCommentMetadataReader, GifCommentReader_CreateInstance},
  75     {0}};
  76
  77 typedef struct {
  78     IClassFactory           IClassFactory_iface;
  79     LONG                    ref;
  80     const classinfo         *info;
  81 } ClassFactoryImpl;
  82
  83 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  84 {
  85     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
  86 }
  87
  88 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  89     REFIID iid, void **ppv)
  90 {
  91     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  92     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  93
  94     if (!ppv) return E_INVALIDARG;
  95
  96     if (IsEqualIID(&IID_IUnknown, iid) ||
  97         IsEqualIID(&IID_IClassFactory, iid))
  98     {
  99         *ppv = &This->IClassFactory_iface;
 100     }
 101     else
 102     {
 103         *ppv = NULL;
 104         return E_NOINTERFACE;
 105     }
 106
 107     IUnknown_AddRef((IUnknown*)*ppv);
 108     return S_OK;
 109 }
 110
 111 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
 112 {
 113     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 114     ULONG ref = InterlockedIncrement(&This->ref);
 115
 116     TRACE("(%p) refcount=%u\n", iface, ref);
 117
 118     return ref;
 119 }
 120
 121 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
 122 {
 123     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 124     ULONG ref = InterlockedDecrement(&This->ref);
 125
 126     TRACE("(%p) refcount=%u\n", iface, ref);
 127
 128     if (ref == 0)
 129         HeapFree(GetProcessHeap(), 0, This);
 130
 131     return ref;
 132 }
 133
 134 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 135     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 136 {
 137     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 138
 139     *ppv = NULL;
 140
 141     if (pUnkOuter) return CLASS_E_NOAGGREGATION;
 142
 143     return This->info->constructor(riid, ppv);
 144 }
 145
 146 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 147 {
 148     TRACE("(%p, %i): stub\n", iface, lock);
 149     return E_NOTIMPL;
 150 }
 151
 152 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 153     ClassFactoryImpl_QueryInterface,
 154     ClassFactoryImpl_AddRef,
 155     ClassFactoryImpl_Release,
 156     ClassFactoryImpl_CreateInstance,
 157     ClassFactoryImpl_LockServer
 158 };
 159
 160 static HRESULT ClassFactoryImpl_Constructor(const classinfo *info, REFIID riid, LPVOID *ppv)
 161 {
 162     ClassFactoryImpl *This;
 163     HRESULT ret;
 164
 165     *ppv = NULL;
 166
 167     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 168     if (!This) return E_OUTOFMEMORY;
 169
 170     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
 171     This->ref = 1;
 172     This->info = info;
 173
 174     ret = IClassFactory_QueryInterface(&This->IClassFactory_iface, riid, ppv);
 175     IClassFactory_Release(&This->IClassFactory_iface);
 176
 177     return ret;
 178 }
 179
 180 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 181 {
 182     HRESULT ret;
 183     const classinfo *info=NULL;
 184     int i;
 185
 186     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 187
 188     if (!rclsid || !iid || !ppv)
 189         return E_INVALIDARG;
 190
 191     *ppv = NULL;
 192
 193     for (i=0; wic_classes[i].classid; i++)
 194     {
 195         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 196         {
 197             info = &wic_classes[i];
 198             break;
 199         }
 200     }
 201
 202     if (info)
 203         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 204     else
 205         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
 206
 207     TRACE("<-- %08X\n", ret);
 208     return ret;
 209 }
 210
 211 HRESULT create_instance(CLSID *clsid, const IID *iid, void **ppv)
 212 {
 213     int i;
 214
 215     for (i=0; wic_classes[i].classid; i++)
 216         if (IsEqualCLSID(wic_classes[i].classid, clsid))
 217             return wic_classes[i].constructor(iid, ppv);
 218
 219     return CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, iid, ppv);
 220 }