Wine Cross Reference
wine/dlls/windowscodecs/clsfactory.c

   /*
    * Copyright 2009 Vincent Povirk for CodeWeavers
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
    *
    * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  
  #include <stdarg.h>
  
  #define COBJMACROS
  
  #include "windef.h"
  #include "winbase.h"
  #include "winreg.h"
  #include "objbase.h"
  #include "ocidl.h"
  #include "initguid.h"
  #include "wincodec.h"
  
  #include "wincodecs_private.h"
  
  #include "wine/debug.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  
  typedef struct {
      REFCLSID classid;
      HRESULT (*constructor)(IUnknown*,REFIID,void**);
  } classinfo;
  
  static classinfo wic_classes[] = {
      {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
      {&CLSID_WICBmpDecoder, BmpDecoder_CreateInstance},
      {&CLSID_WICPngDecoder, PngDecoder_CreateInstance},
      {&CLSID_WICPngEncoder, PngEncoder_CreateInstance},
      {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
      {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
      {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
      {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
      {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
      {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
      {0}};
  
  typedef struct {
      const IClassFactoryVtbl *lpIClassFactoryVtbl;
      LONG                    ref;
      classinfo               *info;
  } ClassFactoryImpl;
  
  static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
      REFIID iid, void **ppv)
  {
      ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
      TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  
      if (!ppv) return E_INVALIDARG;
  
      if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IClassFactory, iid))
      {
          *ppv = This;
      }
      else
      {
          *ppv = NULL;
          return E_NOINTERFACE;
      }
  
      IUnknown_AddRef((IUnknown*)*ppv);
      return S_OK;
  }
  
  static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
  {
      ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
      ULONG ref = InterlockedIncrement(&This->ref);
  
      TRACE("(%p) refcount=%u\n", iface, ref);
  
      return ref;
  }
  
  static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
  {
      ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
      ULONG ref = InterlockedDecrement(&This->ref);
  
     TRACE("(%p) refcount=%u\n", iface, ref);
 
     if (ref == 0)
         HeapFree(GetProcessHeap(), 0, This);
 
     return ref;
 }
 
 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
     IUnknown *pUnkOuter, REFIID riid, void **ppv)
 {
     ClassFactoryImpl *This = (ClassFactoryImpl*)iface;
 
     return This->info->constructor(pUnkOuter, riid, ppv);
 }
 
 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
 {
     TRACE("(%p, %i): stub\n", iface, lock);
     return E_NOTIMPL;
 }
 
 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
     ClassFactoryImpl_QueryInterface,
     ClassFactoryImpl_AddRef,
     ClassFactoryImpl_Release,
     ClassFactoryImpl_CreateInstance,
     ClassFactoryImpl_LockServer
 };
 
 static HRESULT ClassFactoryImpl_Constructor(classinfo *info, REFIID riid, LPVOID *ppv)
 {
     ClassFactoryImpl *This;
     HRESULT ret;
 
     *ppv = NULL;
 
     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
     if (!This) return E_OUTOFMEMORY;
 
     This->lpIClassFactoryVtbl = &ClassFactoryImpl_Vtbl;
     This->ref = 1;
     This->info = info;
 
     ret = IClassFactory_QueryInterface((IClassFactory*)This, riid, ppv);
     IClassFactory_Release((IClassFactory*)This);
 
     return ret;
 }
 
 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 {
     HRESULT ret;
     classinfo *info=NULL;
     int i;
 
     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
 
     if (!rclsid || !iid || !ppv)
         return E_INVALIDARG;
 
     *ppv = NULL;
 
     for (i=0; wic_classes[i].classid; i++)
     {
         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
         {
             info = &wic_classes[i];
             break;
         }
     }
 
     if (info)
         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
     else
         ret = CLASS_E_CLASSNOTAVAILABLE;
 
     TRACE("<-- %08X\n", ret);
     return ret;
 }