persistpropertybag.cpp
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/* akvirtualcamera, virtual camera for Mac and Windows.
* Copyright (C) 2020 Gonzalo Exequiel Pedone
*
* akvirtualcamera is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* akvirtualcamera 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with akvirtualcamera. If not, see <http://www.gnu.org/licenses/>.
*
* Web-Site: http://webcamoid.github.io/
*/
#include "persistpropertybag.h"
#include "basefilter.h"
#include "PlatformUtils/src/utils.h"
#include "VCamUtils/src/utils.h"
namespace AkVCam
{
class PersistPropertyBagPrivate
{
public:
ComVariantMap m_properties;
};
}
AkVCam::PersistPropertyBag::PersistPropertyBag(const GUID &clsid,
const ComVariantMap &properties):
Persist(clsid)
{
this->setParent(this, &IID_IPersistPropertyBag);
this->d = new PersistPropertyBagPrivate;
this->d->m_properties = properties;
}
AkVCam::PersistPropertyBag::~PersistPropertyBag()
{
delete this->d;
}
HRESULT AkVCam::PersistPropertyBag::QueryInterface(const IID &riid,
void **ppvObject)
{
AkLogFunction();
AkLogInfo() << "IID: " << AkVCam::stringFromClsid(riid) << std::endl;
if (!ppvObject)
return E_POINTER;
*ppvObject = nullptr;
if (IsEqualIID(riid, IID_IUnknown)
|| IsEqualIID(riid, IID_IPersistPropertyBag)) {
AkLogInterface(IPersistPropertyBag, this);
this->AddRef();
*ppvObject = this;
return S_OK;
} else if (IsEqualIID(riid, IID_IBaseFilter)) {
CLSID clsid;
auto result = this->GetClassID(&clsid);
if (FAILED(result))
return result;
auto baseFilter = BaseFilter::create(clsid);
if (!baseFilter)
return E_FAIL;
AkLogInterface(IBaseFilter, baseFilter);
baseFilter->AddRef();
*ppvObject = baseFilter;
return S_OK;
}
return Persist::QueryInterface(riid, ppvObject);
}
HRESULT AkVCam::PersistPropertyBag::InitNew()
{
AkLogFunction();
return S_OK;
}
HRESULT AkVCam::PersistPropertyBag::Load(IPropertyBag *pPropBag,
IErrorLog *pErrorLog)
{
UNUSED(pErrorLog);
AkLogFunction();
if (!pPropBag)
return E_POINTER;
for (auto &prop: this->d->m_properties) {
VARIANT value;
VariantInit(&value);
if (FAILED(pPropBag->Read(prop.first.c_str(), &value, nullptr)))
continue;
this->d->m_properties[prop.first] = value;
}
return S_OK;
}
HRESULT AkVCam::PersistPropertyBag::Save(IPropertyBag *pPropBag,
BOOL fClearDirty,
BOOL fSaveAllProperties)
{
UNUSED(fClearDirty);
UNUSED(fSaveAllProperties);
AkLogFunction();
if (!pPropBag)
return E_POINTER;
for (auto &prop: this->d->m_properties)
pPropBag->Write(prop.first.c_str(), &prop.second);
return S_OK;
}