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