mirror of
https://github.com/reactos/reactos.git
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327 lines
8.6 KiB
C
327 lines
8.6 KiB
C
/*
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* Copyright 2009 Vincent Povirk for CodeWeavers
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* Copyright 2013 Ludger Sprenker
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#define COBJMACROS
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#include "windef.h"
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#include "winbase.h"
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#include "objbase.h"
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#include "wine/unicode.h"
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#include "wincodecs_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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typedef struct PropertyBag {
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IPropertyBag2 IPropertyBag2_iface;
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LONG ref;
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UINT prop_count;
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PROPBAG2 *properties;
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VARIANT *values;
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} PropertyBag;
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static inline PropertyBag *impl_from_IPropertyBag2(IPropertyBag2 *iface)
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{
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return CONTAINING_RECORD(iface, PropertyBag, IPropertyBag2_iface);
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}
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static HRESULT WINAPI PropertyBag_QueryInterface(IPropertyBag2 *iface, REFIID iid,
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void **ppv)
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{
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PropertyBag *This = impl_from_IPropertyBag2(iface);
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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if (!ppv) return E_INVALIDARG;
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if (IsEqualIID(&IID_IUnknown, iid) ||
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IsEqualIID(&IID_IPropertyBag2, iid))
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{
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*ppv = &This->IPropertyBag2_iface;
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}
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else
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{
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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static ULONG WINAPI PropertyBag_AddRef(IPropertyBag2 *iface)
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{
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PropertyBag *This = impl_from_IPropertyBag2(iface);
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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return ref;
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}
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static ULONG WINAPI PropertyBag_Release(IPropertyBag2 *iface)
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{
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PropertyBag *This = impl_from_IPropertyBag2(iface);
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ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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if (ref == 0)
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{
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ULONG i;
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if (This->properties && This->values)
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{
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for (i=0; i < This->prop_count; i++)
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{
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CoTaskMemFree(This->properties[i].pstrName);
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VariantClear( This->values+i );
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}
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}
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HeapFree(GetProcessHeap(), 0, This->properties);
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HeapFree(GetProcessHeap(), 0, This->values);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static LONG find_item(PropertyBag *This, LPCOLESTR name)
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{
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LONG i;
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if (!This->properties)
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return -1;
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if (!name)
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return -1;
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for (i=0; i < This->prop_count; i++)
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{
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if (strcmpW(name, This->properties[i].pstrName) == 0)
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return i;
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}
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return -1;
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}
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static HRESULT WINAPI PropertyBag_Read(IPropertyBag2 *iface, ULONG cProperties,
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PROPBAG2 *pPropBag, IErrorLog *pErrLog, VARIANT *pvarValue, HRESULT *phrError)
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{
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HRESULT res = S_OK;
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ULONG i;
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PropertyBag *This = impl_from_IPropertyBag2(iface);
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TRACE("(%p,%u,%p,%p,%p,%p)\n", iface, cProperties, pPropBag, pErrLog, pvarValue, phrError);
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for (i=0; i < cProperties; i++)
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{
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LONG idx;
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if (pPropBag[i].dwHint && pPropBag[i].dwHint <= This->prop_count)
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idx = pPropBag[i].dwHint-1;
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else
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idx = find_item(This, pPropBag[i].pstrName);
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if (idx > -1)
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{
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VariantInit(pvarValue+i);
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res = VariantCopy(pvarValue+i, This->values+idx);
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if (FAILED(res))
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break;
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phrError[i] = res;
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}
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else
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{
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res = E_FAIL;
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break;
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}
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}
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return res;
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}
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static HRESULT WINAPI PropertyBag_Write(IPropertyBag2 *iface, ULONG cProperties,
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PROPBAG2 *pPropBag, VARIANT *pvarValue)
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{
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HRESULT res = S_OK;
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ULONG i;
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PropertyBag *This = impl_from_IPropertyBag2(iface);
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TRACE("(%p,%u,%p,%p)\n", iface, cProperties, pPropBag, pvarValue);
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for (i=0; i < cProperties; i++)
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{
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LONG idx;
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if (pPropBag[i].dwHint && pPropBag[i].dwHint <= This->prop_count)
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idx = pPropBag[i].dwHint-1;
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else
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idx = find_item(This, pPropBag[i].pstrName);
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if (idx > -1)
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{
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if (This->properties[idx].vt != V_VT(pvarValue+i))
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return WINCODEC_ERR_PROPERTYUNEXPECTEDTYPE;
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res = VariantCopy(This->values+idx, pvarValue+i);
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if (FAILED(res))
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return E_FAIL;
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}
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else
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{
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if (pPropBag[i].pstrName)
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FIXME("Application tried to set the unknown option %s.\n",
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debugstr_w(pPropBag[i].pstrName));
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/* FIXME: Function is not atomar on error, but MSDN does not say anything about it
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* (no reset of items between 0 and i-1) */
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return E_FAIL;
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}
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}
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return res;
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}
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static HRESULT WINAPI PropertyBag_CountProperties(IPropertyBag2 *iface, ULONG *pcProperties)
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{
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PropertyBag *This = impl_from_IPropertyBag2(iface);
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TRACE("(%p,%p)\n", iface, pcProperties);
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if (!pcProperties)
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return E_INVALIDARG;
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*pcProperties = This->prop_count;
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return S_OK;
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}
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static HRESULT copy_propbag2(PROPBAG2 *dest, const PROPBAG2 *src)
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{
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dest->cfType = src->cfType;
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dest->clsid = src->clsid;
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dest->dwHint = src->dwHint;
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dest->dwType = src->dwType;
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dest->vt = src->vt;
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dest->pstrName = CoTaskMemAlloc((strlenW(src->pstrName)+1) * sizeof(WCHAR));
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if(!dest->pstrName)
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return E_OUTOFMEMORY;
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strcpyW(dest->pstrName, src->pstrName);
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return S_OK;
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}
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static HRESULT WINAPI PropertyBag_GetPropertyInfo(IPropertyBag2 *iface, ULONG iProperty,
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ULONG cProperties, PROPBAG2 *pPropBag, ULONG *pcProperties)
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{
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HRESULT res = S_OK;
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ULONG i;
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PropertyBag *This = impl_from_IPropertyBag2(iface);
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TRACE("(%p,%u,%u,%p,%p)\n", iface, iProperty, cProperties, pPropBag, pcProperties);
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if (iProperty >= This->prop_count && iProperty > 0)
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return WINCODEC_ERR_VALUEOUTOFRANGE;
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if (iProperty+cProperties > This->prop_count )
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return WINCODEC_ERR_VALUEOUTOFRANGE;
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*pcProperties = min(cProperties, This->prop_count-iProperty);
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for (i=0; i < *pcProperties; i++)
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{
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res = copy_propbag2(pPropBag+i, This->properties+iProperty+i);
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if (FAILED(res))
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{
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do {
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CoTaskMemFree( pPropBag[--i].pstrName );
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} while (i);
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break;
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}
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}
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return res;
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}
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static HRESULT WINAPI PropertyBag_LoadObject(IPropertyBag2 *iface, LPCOLESTR pstrName,
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DWORD dwHint, IUnknown *pUnkObject, IErrorLog *pErrLog)
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{
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FIXME("(%p,%s,%u,%p,%p): stub\n", iface, debugstr_w(pstrName), dwHint, pUnkObject, pErrLog);
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return E_NOTIMPL;
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}
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static const IPropertyBag2Vtbl PropertyBag_Vtbl = {
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PropertyBag_QueryInterface,
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PropertyBag_AddRef,
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PropertyBag_Release,
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PropertyBag_Read,
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PropertyBag_Write,
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PropertyBag_CountProperties,
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PropertyBag_GetPropertyInfo,
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PropertyBag_LoadObject
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};
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HRESULT CreatePropertyBag2(const PROPBAG2 *options, UINT count,
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IPropertyBag2 **ppPropertyBag2)
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{
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UINT i;
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HRESULT res = S_OK;
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PropertyBag *This;
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This = HeapAlloc(GetProcessHeap(), 0, sizeof(PropertyBag));
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if (!This) return E_OUTOFMEMORY;
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This->IPropertyBag2_iface.lpVtbl = &PropertyBag_Vtbl;
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This->ref = 1;
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This->prop_count = count;
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if (count == 0)
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{
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This->properties = NULL;
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This->values = NULL;
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}
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else
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{
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This->properties = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(PROPBAG2)*count);
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This->values = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(VARIANT)*count);
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if (!This->properties || !This->values)
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res = E_OUTOFMEMORY;
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else
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for (i=0; i < count; i++)
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{
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res = copy_propbag2(This->properties+i, options+i);
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if (FAILED(res))
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break;
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This->properties[i].dwHint = i+1; /* 0 means unset, so we start with 1 */
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}
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}
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if (FAILED(res))
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{
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PropertyBag_Release(&This->IPropertyBag2_iface);
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*ppPropertyBag2 = NULL;
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}
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else
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*ppPropertyBag2 = &This->IPropertyBag2_iface;
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return res;
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}
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