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