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