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     IPropertyBag2 IPropertyBag2_iface;
  38     LONG ref;
  39 } PropertyBag;
  40
  41 static inline PropertyBag *impl_from_IPropertyBag2(IPropertyBag2 *iface)
  42 {
  43     return CONTAINING_RECORD(iface, PropertyBag, IPropertyBag2_iface);
  44 }
  45
  46 static HRESULT WINAPI PropertyBag_QueryInterface(IPropertyBag2 *iface, REFIID iid,
  47     void **ppv)
  48 {
  49     PropertyBag *This = impl_from_IPropertyBag2(iface);
  50     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  51
  52     if (!ppv) return E_INVALIDARG;
  53
  54     if (IsEqualIID(&IID_IUnknown, iid) ||
  55         IsEqualIID(&IID_IPropertyBag2, iid))
  56     {
  57         *ppv = This;
  58     }
  59     else
  60     {
  61         *ppv = NULL;
  62         return E_NOINTERFACE;
  63     }
  64
  65     IUnknown_AddRef((IUnknown*)*ppv);
  66     return S_OK;
  67 }
  68
  69 static ULONG WINAPI PropertyBag_AddRef(IPropertyBag2 *iface)
  70 {
  71     PropertyBag *This = impl_from_IPropertyBag2(iface);
  72     ULONG ref = InterlockedIncrement(&This->ref);
  73
  74     TRACE("(%p) refcount=%u\n", iface, ref);
  75
  76     return ref;
  77 }
  78
  79 static ULONG WINAPI PropertyBag_Release(IPropertyBag2 *iface)
  80 {
  81     PropertyBag *This = impl_from_IPropertyBag2(iface);
  82     ULONG ref = InterlockedDecrement(&This->ref);
  83
  84     TRACE("(%p) refcount=%u\n", iface, ref);
  85
  86     if (ref == 0)
  87     {
  88         HeapFree(GetProcessHeap(), 0, This);
  89     }
  90
  91     return ref;
  92 }
  93
  94 static HRESULT WINAPI PropertyBag_Read(IPropertyBag2 *iface, ULONG cProperties,
  95     PROPBAG2 *pPropBag, IErrorLog *pErrLog, VARIANT *pvarValue, HRESULT *phrError)
  96 {
  97     FIXME("(%p,%u,%p,%p,%p,%p): stub\n", iface, cProperties, pPropBag, pErrLog, pvarValue, phrError);
  98     return E_NOTIMPL;
  99 }
 100
 101 static HRESULT WINAPI PropertyBag_Write(IPropertyBag2 *iface, ULONG cProperties,
 102     PROPBAG2 *pPropBag, VARIANT *pvarValue)
 103 {
 104     FIXME("(%p,%u,%p,%p): stub\n", iface, cProperties, pPropBag, pvarValue);
 105     return E_NOTIMPL;
 106 }
 107
 108 static HRESULT WINAPI PropertyBag_CountProperties(IPropertyBag2 *iface, ULONG *pcProperties)
 109 {
 110     FIXME("(%p,%p): stub\n", iface, pcProperties);
 111     return E_NOTIMPL;
 112 }
 113
 114 static HRESULT WINAPI PropertyBag_GetPropertyInfo(IPropertyBag2 *iface, ULONG iProperty,
 115     ULONG cProperties, PROPBAG2 *pPropBag, ULONG *pcProperties)
 116 {
 117     FIXME("(%p,%u,%u,%p,%p): stub\n", iface, iProperty, cProperties, pPropBag, pcProperties);
 118     return E_NOTIMPL;
 119 }
 120
 121 static HRESULT WINAPI PropertyBag_LoadObject(IPropertyBag2 *iface, LPCOLESTR pstrName,
 122     DWORD dwHint, IUnknown *pUnkObject, IErrorLog *pErrLog)
 123 {
 124     FIXME("(%p,%s,%u,%p,%p): stub\n", iface, debugstr_w(pstrName), dwHint, pUnkObject, pErrLog);
 125     return E_NOTIMPL;
 126 }
 127
 128 static const IPropertyBag2Vtbl PropertyBag_Vtbl = {
 129     PropertyBag_QueryInterface,
 130     PropertyBag_AddRef,
 131     PropertyBag_Release,
 132     PropertyBag_Read,
 133     PropertyBag_Write,
 134     PropertyBag_CountProperties,
 135     PropertyBag_GetPropertyInfo,
 136     PropertyBag_LoadObject
 137 };
 138
 139 HRESULT CreatePropertyBag2(IPropertyBag2 **ppPropertyBag2)
 140 {
 141     PropertyBag *This;
 142
 143     This = HeapAlloc(GetProcessHeap(), 0, sizeof(PropertyBag));
 144     if (!This) return E_OUTOFMEMORY;
 145
 146     This->IPropertyBag2_iface.lpVtbl = &PropertyBag_Vtbl;
 147     This->ref = 1;
 148
 149     *ppPropertyBag2 = &This->IPropertyBag2_iface;
 150
 151     return S_OK;
 152 }