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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <graphic/Manager.hxx>
#include <impgraph.hxx>
#include <sal/log.hxx>
#include <officecfg/Office/Common.hxx>
#include <unotools/configmgr.hxx>
using namespace css;
namespace vcl::graphic
{
namespace
{
void setupConfigurationValuesIfPossible(sal_Int64& rMemoryLimit,
std::chrono::seconds& rAllowedIdleTime, bool& bSwapEnabled)
{
if (utl::ConfigManager::IsFuzzing())
return;
try
{
using officecfg::Office::Common::Cache;
rMemoryLimit = Cache::GraphicManager::GraphicMemoryLimit::get();
rAllowedIdleTime
= std::chrono::seconds(Cache::GraphicManager::GraphicAllowedIdleTime::get());
bSwapEnabled = Cache::GraphicManager::GraphicSwappingEnabled::get();
}
catch (...)
{
}
}
}
Manager& Manager::get()
{
static Manager gStaticManager;
return gStaticManager;
}
Manager::Manager()
: mnAllowedIdleTime(10)
, mbSwapEnabled(true)
, mnMemoryLimit(300000000)
, mnUsedSize(0)
, maSwapOutTimer("graphic::Manager maSwapOutTimer")
{
setupConfigurationValuesIfPossible(mnMemoryLimit, mnAllowedIdleTime, mbSwapEnabled);
if (mbSwapEnabled)
{
maSwapOutTimer.SetInvokeHandler(LINK(this, Manager, SwapOutTimerHandler));
maSwapOutTimer.SetTimeout(10000);
maSwapOutTimer.SetDebugName("graphic::Manager maSwapOutTimer");
maSwapOutTimer.Start();
}
}
void Manager::reduceGraphicMemory()
{
if (!mbSwapEnabled)
return;
std::scoped_lock<std::recursive_mutex> aGuard(maMutex);
// make a copy of m_pImpGraphicList because if we swap out a svg, the svg
// filter may create more temp Graphics which are auto-added to
// m_pImpGraphicList invalidating a loop over m_pImpGraphicList, e.g.
// reexport of tdf118346-1.odg
o3tl::sorted_vector<ImpGraphic*> aImpGraphicList = m_pImpGraphicList;
for (ImpGraphic* pEachImpGraphic : aImpGraphicList)
{
if (mnUsedSize < mnMemoryLimit * 0.7)
return;
sal_Int64 nCurrentGraphicSize = getGraphicSizeBytes(pEachImpGraphic);
if (!pEachImpGraphic->isSwappedOut() && nCurrentGraphicSize > 1000000)
{
if (!pEachImpGraphic->mpContext)
{
auto aCurrent = std::chrono::high_resolution_clock::now();
auto aDeltaTime = aCurrent - pEachImpGraphic->maLastUsed;
auto aSeconds = std::chrono::duration_cast<std::chrono::seconds>(aDeltaTime);
if (aSeconds > mnAllowedIdleTime)
pEachImpGraphic->swapOut();
}
}
}
}
sal_Int64 Manager::getGraphicSizeBytes(const ImpGraphic* pImpGraphic)
{
if (!pImpGraphic->isAvailable())
return 0;
return pImpGraphic->ImplGetSizeBytes();
}
IMPL_LINK(Manager, SwapOutTimerHandler, Timer*, pTimer, void)
{
std::scoped_lock<std::recursive_mutex> aGuard(maMutex);
pTimer->Stop();
reduceGraphicMemory();
pTimer->Start();
}
void Manager::registerGraphic(const std::shared_ptr<ImpGraphic>& pImpGraphic,
std::u16string_view /*rsContext*/)
{
std::scoped_lock<std::recursive_mutex> aGuard(maMutex);
// make some space first
if (mnUsedSize > mnMemoryLimit)
reduceGraphicMemory();
// Insert and update the used size (bytes)
mnUsedSize += getGraphicSizeBytes(pImpGraphic.get());
m_pImpGraphicList.insert(pImpGraphic.get());
// calculate size of the graphic set
sal_Int64 calculatedSize = 0;
for (ImpGraphic* pEachImpGraphic : m_pImpGraphicList)
{
if (!pEachImpGraphic->isSwappedOut())
{
calculatedSize += getGraphicSizeBytes(pEachImpGraphic);
}
}
if (calculatedSize != mnUsedSize)
{
SAL_INFO_IF(calculatedSize != mnUsedSize, "vcl.gdi",
"Calculated size mismatch. Variable size is '"
<< mnUsedSize << "' but calculated size is '" << calculatedSize << "'");
mnUsedSize = calculatedSize;
}
}
void Manager::unregisterGraphic(ImpGraphic* pImpGraphic)
{
std::scoped_lock<std::recursive_mutex> aGuard(maMutex);
mnUsedSize -= getGraphicSizeBytes(pImpGraphic);
m_pImpGraphicList.erase(pImpGraphic);
}
std::shared_ptr<ImpGraphic> Manager::copy(std::shared_ptr<ImpGraphic> const& rImpGraphicPtr)
{
auto pReturn = std::make_shared<ImpGraphic>(*rImpGraphicPtr);
registerGraphic(pReturn, u"Copy");
return pReturn;
}
std::shared_ptr<ImpGraphic> Manager::newInstance()
{
auto pReturn = std::make_shared<ImpGraphic>();
registerGraphic(pReturn, u"Empty");
return pReturn;
}
std::shared_ptr<ImpGraphic> Manager::newInstance(const BitmapEx& rBitmapEx)
{
auto pReturn = std::make_shared<ImpGraphic>(rBitmapEx);
registerGraphic(pReturn, u"BitmapEx");
return pReturn;
}
std::shared_ptr<ImpGraphic> Manager::newInstance(const Animation& rAnimation)
{
auto pReturn = std::make_shared<ImpGraphic>(rAnimation);
registerGraphic(pReturn, u"Animation");
return pReturn;
}
std::shared_ptr<ImpGraphic>
Manager::newInstance(const std::shared_ptr<VectorGraphicData>& rVectorGraphicDataPtr)
{
auto pReturn = std::make_shared<ImpGraphic>(rVectorGraphicDataPtr);
registerGraphic(pReturn, u"VectorGraphic");
return pReturn;
}
std::shared_ptr<ImpGraphic> Manager::newInstance(const GDIMetaFile& rMetaFile)
{
auto pReturn = std::make_shared<ImpGraphic>(rMetaFile);
registerGraphic(pReturn, u"Metafile");
return pReturn;
}
std::shared_ptr<ImpGraphic> Manager::newInstance(const GraphicExternalLink& rGraphicLink)
{
auto pReturn = std::make_shared<ImpGraphic>(rGraphicLink);
registerGraphic(pReturn, u"GraphicExternalLink");
return pReturn;
}
void Manager::swappedIn(const ImpGraphic* pImpGraphic)
{
std::scoped_lock<std::recursive_mutex> aGuard(maMutex);
mnUsedSize += getGraphicSizeBytes(pImpGraphic);
}
void Manager::swappedOut(const ImpGraphic* pImpGraphic)
{
std::scoped_lock<std::recursive_mutex> aGuard(maMutex);
mnUsedSize -= getGraphicSizeBytes(pImpGraphic);
}
void Manager::changeExisting(const ImpGraphic* pImpGraphic, sal_Int64 nOldSizeBytes)
{
std::scoped_lock<std::recursive_mutex> aGuard(maMutex);
mnUsedSize -= nOldSizeBytes;
mnUsedSize += getGraphicSizeBytes(pImpGraphic);
}
} // end vcl::graphic
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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