dlls/windowscodecs/propertybag.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 "objbase.h"
  28 #include "wincodec.h"
  29
  30 #include "wincodecs_private.h"
  31
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  35
  36 typedef struct PropertyBag {
  37     const IPropertyBag2Vtbl *lpVtbl;
  38     LONG ref;
  39 } PropertyBag;
  40
  41 static HRESULT WINAPI PropertyBag_QueryInterface(IPropertyBag2 *iface, REFIID iid,
  42     void **ppv)
  43 {
  44     PropertyBag *This = (PropertyBag*)iface;
  45     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  46
  47     if (!ppv) return E_INVALIDARG;
  48
  49     if (IsEqualIID(&IID_IUnknown, iid) ||
  50         IsEqualIID(&IID_IPropertyBag2, iid))
  51     {
  52         *ppv = This;
  53     }
  54     else
  55     {
  56         *ppv = NULL;
  57         return E_NOINTERFACE;
  58     }
  59
  60     IUnknown_AddRef((IUnknown*)*ppv);
  61     return S_OK;
  62 }
  63
  64 static ULONG WINAPI PropertyBag_AddRef(IPropertyBag2 *iface)
  65 {
  66     PropertyBag *This = (PropertyBag*)iface;
  67     ULONG ref = InterlockedIncrement(&This->ref);
  68
  69     TRACE("(%p) refcount=%u\n", iface, ref);
  70
  71     return ref;
  72 }
  73
  74 static ULONG WINAPI PropertyBag_Release(IPropertyBag2 *iface)
  75 {
  76     PropertyBag *This = (PropertyBag*)iface;
  77     ULONG ref = InterlockedDecrement(&This->ref);
  78
  79     TRACE("(%p) refcount=%u\n", iface, ref);
  80
  81     if (ref == 0)
  82     {
  83         HeapFree(GetProcessHeap(), 0, This);
  84     }
  85
  86     return ref;
  87 }
  88
  89 static HRESULT WINAPI PropertyBag_Read(IPropertyBag2 *iface, ULONG cProperties,
  90     PROPBAG2 *pPropBag, IErrorLog *pErrLog, VARIANT *pvarValue, HRESULT *phrError)
  91 {
  92     FIXME("(%p,%u,%p,%p,%p,%p): stub\n", iface, cProperties, pPropBag, pErrLog, pvarValue, phrError);
  93     return E_NOTIMPL;
  94 }
  95
  96 static HRESULT WINAPI PropertyBag_Write(IPropertyBag2 *iface, ULONG cProperties,
  97     PROPBAG2 *pPropBag, VARIANT *pvarValue)
  98 {
  99     FIXME("(%p,%u,%p,%p): stub\n", iface, cProperties, pPropBag, pvarValue);
 100     return E_NOTIMPL;
 101 }
 102
 103 static HRESULT WINAPI PropertyBag_CountProperties(IPropertyBag2 *iface, ULONG *pcProperties)
 104 {
 105     FIXME("(%p,%p): stub\n", iface, pcProperties);
 106     return E_NOTIMPL;
 107 }
 108
 109 static HRESULT WINAPI PropertyBag_GetPropertyInfo(IPropertyBag2 *iface, ULONG iProperty,
 110     ULONG cProperties, PROPBAG2 *pPropBag, ULONG *pcProperties)
 111 {
 112     FIXME("(%p,%u,%u,%p,%p): stub\n", iface, iProperty, cProperties, pPropBag, pcProperties);
 113     return E_NOTIMPL;
 114 }
 115
 116 static HRESULT WINAPI PropertyBag_LoadObject(IPropertyBag2 *iface, LPCOLESTR pstrName,
 117     DWORD dwHint, IUnknown *pUnkObject, IErrorLog *pErrLog)
 118 {
 119     FIXME("(%p,%s,%u,%p,%p): stub\n", iface, debugstr_w(pstrName), dwHint, pUnkObject, pErrLog);
 120     return E_NOTIMPL;
 121 }
 122
 123 static const IPropertyBag2Vtbl PropertyBag_Vtbl = {
 124     PropertyBag_QueryInterface,
 125     PropertyBag_AddRef,
 126     PropertyBag_Release,
 127     PropertyBag_Read,
 128     PropertyBag_Write,
 129     PropertyBag_CountProperties,
 130     PropertyBag_GetPropertyInfo,
 131     PropertyBag_LoadObject
 132 };
 133
 134 extern HRESULT CreatePropertyBag2(IPropertyBag2 **ppPropertyBag2)
 135 {
 136     PropertyBag *This;
 137
 138     This = HeapAlloc(GetProcessHeap(), 0, sizeof(PropertyBag));
 139     if (!This) return E_OUTOFMEMORY;
 140
 141     This->lpVtbl = &PropertyBag_Vtbl;
 142     This->ref = 1;
 143
 144     *ppPropertyBag2 = (IPropertyBag2*)This;
 145
 146     return S_OK;
 147 }