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 classinfo wic_classes[] = {
  48     {&CLSID_WICImagingFactory, ImagingFactory_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     {0}};
  64
  65 typedef struct {
  66     IClassFactory           IClassFactory_iface;
  67     LONG                    ref;
  68     classinfo               *info;
  69 } ClassFactoryImpl;
  70
  71 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  72 {
  73     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
  74 }
  75
  76 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  77     REFIID iid, void **ppv)
  78 {
  79     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  80     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  81
  82     if (!ppv) return E_INVALIDARG;
  83
  84     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IClassFactory, iid))
  85     {
  86         *ppv = This;
  87     }
  88     else
  89     {
  90         *ppv = NULL;
  91         return E_NOINTERFACE;
  92     }
  93
  94     IUnknown_AddRef((IUnknown*)*ppv);
  95     return S_OK;
  96 }
  97
  98 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
  99 {
 100     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 101     ULONG ref = InterlockedIncrement(&This->ref);
 102
 103     TRACE("(%p) refcount=%u\n", iface, ref);
 104
 105     return ref;
 106 }
 107
 108 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
 109 {
 110     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 111     ULONG ref = InterlockedDecrement(&This->ref);
 112
 113     TRACE("(%p) refcount=%u\n", iface, ref);
 114
 115     if (ref == 0)
 116         HeapFree(GetProcessHeap(), 0, This);
 117
 118     return ref;
 119 }
 120
 121 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 122     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 123 {
 124     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 125
 126     return This->info->constructor(pUnkOuter, riid, ppv);
 127 }
 128
 129 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 130 {
 131     TRACE("(%p, %i): stub\n", iface, lock);
 132     return E_NOTIMPL;
 133 }
 134
 135 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 136     ClassFactoryImpl_QueryInterface,
 137     ClassFactoryImpl_AddRef,
 138     ClassFactoryImpl_Release,
 139     ClassFactoryImpl_CreateInstance,
 140     ClassFactoryImpl_LockServer
 141 };
 142
 143 static HRESULT ClassFactoryImpl_Constructor(classinfo *info, REFIID riid, LPVOID *ppv)
 144 {
 145     ClassFactoryImpl *This;
 146     HRESULT ret;
 147
 148     *ppv = NULL;
 149
 150     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 151     if (!This) return E_OUTOFMEMORY;
 152
 153     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
 154     This->ref = 1;
 155     This->info = info;
 156
 157     ret = IClassFactory_QueryInterface((IClassFactory*)This, riid, ppv);
 158     IClassFactory_Release((IClassFactory*)This);
 159
 160     return ret;
 161 }
 162
 163 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 164 {
 165     HRESULT ret;
 166     classinfo *info=NULL;
 167     int i;
 168
 169     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 170
 171     if (!rclsid || !iid || !ppv)
 172         return E_INVALIDARG;
 173
 174     *ppv = NULL;
 175
 176     for (i=0; wic_classes[i].classid; i++)
 177     {
 178         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 179         {
 180             info = &wic_classes[i];
 181             break;
 182         }
 183     }
 184
 185     if (info)
 186         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 187     else
 188         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
 189
 190     TRACE("<-- %08X\n", ret);
 191     return ret;
 192 }