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