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