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
  33 #include "wincodecs_private.h"
  34
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  38
  39 extern HRESULT WINAPI WIC_DllGetClassObject(REFCLSID, REFIID, LPVOID *) DECLSPEC_HIDDEN;
  40
  41 typedef struct {
  42     REFCLSID classid;
  43     HRESULT (*constructor)(IUnknown*,REFIID,void**);
  44 } classinfo;
  45
  46 static classinfo wic_classes[] = {
  47     {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
  48     {&CLSID_WICBmpDecoder, BmpDecoder_CreateInstance},
  49     {&CLSID_WICPngDecoder, PngDecoder_CreateInstance},
  50     {&CLSID_WICPngEncoder, PngEncoder_CreateInstance},
  51     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
  52     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
  53     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
  54     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
  55     {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
  56     {&CLSID_WICTiffEncoder, TiffEncoder_CreateInstance},
  57     {&CLSID_WICIcnsEncoder, IcnsEncoder_CreateInstance},
  58     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
  59     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
  60     {0}};
  61
  62 typedef struct {
  63     IClassFactory           IClassFactory_iface;
  64     LONG                    ref;
  65     classinfo               *info;
  66 } ClassFactoryImpl;
  67
  68 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  69 {
  70     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
  71 }
  72
  73 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
  74     REFIID iid, void **ppv)
  75 {
  76     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  77     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  78
  79     if (!ppv) return E_INVALIDARG;
  80
  81     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IClassFactory, iid))
  82     {
  83         *ppv = This;
  84     }
  85     else
  86     {
  87         *ppv = NULL;
  88         return E_NOINTERFACE;
  89     }
  90
  91     IUnknown_AddRef((IUnknown*)*ppv);
  92     return S_OK;
  93 }
  94
  95 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
  96 {
  97     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  98     ULONG ref = InterlockedIncrement(&This->ref);
  99
 100     TRACE("(%p) refcount=%u\n", iface, ref);
 101
 102     return ref;
 103 }
 104
 105 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
 106 {
 107     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 108     ULONG ref = InterlockedDecrement(&This->ref);
 109
 110     TRACE("(%p) refcount=%u\n", iface, ref);
 111
 112     if (ref == 0)
 113         HeapFree(GetProcessHeap(), 0, This);
 114
 115     return ref;
 116 }
 117
 118 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
 119     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 120 {
 121     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
 122
 123     return This->info->constructor(pUnkOuter, riid, ppv);
 124 }
 125
 126 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 127 {
 128     TRACE("(%p, %i): stub\n", iface, lock);
 129     return E_NOTIMPL;
 130 }
 131
 132 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
 133     ClassFactoryImpl_QueryInterface,
 134     ClassFactoryImpl_AddRef,
 135     ClassFactoryImpl_Release,
 136     ClassFactoryImpl_CreateInstance,
 137     ClassFactoryImpl_LockServer
 138 };
 139
 140 static HRESULT ClassFactoryImpl_Constructor(classinfo *info, REFIID riid, LPVOID *ppv)
 141 {
 142     ClassFactoryImpl *This;
 143     HRESULT ret;
 144
 145     *ppv = NULL;
 146
 147     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
 148     if (!This) return E_OUTOFMEMORY;
 149
 150     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
 151     This->ref = 1;
 152     This->info = info;
 153
 154     ret = IClassFactory_QueryInterface((IClassFactory*)This, riid, ppv);
 155     IClassFactory_Release((IClassFactory*)This);
 156
 157     return ret;
 158 }
 159
 160 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 161 {
 162     HRESULT ret;
 163     classinfo *info=NULL;
 164     int i;
 165
 166     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 167
 168     if (!rclsid || !iid || !ppv)
 169         return E_INVALIDARG;
 170
 171     *ppv = NULL;
 172
 173     for (i=0; wic_classes[i].classid; i++)
 174     {
 175         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
 176         {
 177             info = &wic_classes[i];
 178             break;
 179         }
 180     }
 181
 182     if (info)
 183         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
 184     else
 185         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
 186
 187     TRACE("<-- %08X\n", ret);
 188     return ret;
 189 }