crashtesting: crash on reexport of tdf118346-1.odg to odg

 #10 0x00007fffef6f9e1c in vcl::graphic::Manager::reduceGraphicMemory() (this=0x7ffff09c5508 <vcl::graphic::Manager::get()::gStaticManager>) at vcl/source/graphic/Manager.cxx:120
 #11 0x00007fffef6fa0c4 in vcl::graphic::Manager::registerGraphic(std::shared_ptr<ImpGraphic> const&) (this=0x7ffff09c5508 <vcl::graphic::Manager::get()::gStaticManager> std::shared_ptr<ImpGraphic> (use count 1, weak count 0) = {...}) at vcl/source/graphic/Manager.cxx:159
 #12 0x00007fffef6fa749 in vcl::graphic::Manager::newInstance() (this=0x7ffff09c5508 <vcl::graphic::Manager::get()::gStaticManager>) at vcl/source/graphic/Manager.cxx:202
 #13 0x00007fffef4aba15 in Graphic::Graphic() (this=0x7ffffff32f18) at vcl/source/gdi/graph.cxx:163
 #14 0x00007fff9409761c in svgio::svgreader::SvgImageNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer&, bool) const (this=0x2b4e46b0, rTarget=...)
     at svgio/source/svgreader/svgimagenode.cxx:220
 #15 0x00007fff940a2651 in svgio::svgreader::SvgNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer&, bool) const (this=0x2ab0f6d0, rTarget=..., bReferenced=false)
     at svgio/source/svgreader/svgnode.cxx:529
 #16 0x00007fff94092a0b in svgio::svgreader::SvgGNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer&, bool) const (this=0x2ab0f6d0, rTarget=..., bReferenced=false)
     at svgio/source/svgreader/svggnode.cxx:107
 #17 0x00007fff940a2651 in svgio::svgreader::SvgNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer&, bool) const (this=0x2ab0f370, rTarget=..., bReferenced=false)
     at svgio/source/svgreader/svgnode.cxx:529
 #18 0x00007fff94092a0b in svgio::svgreader::SvgGNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer&, bool) const (this=0x2ab0f370, rTarget=..., bReferenced=false)
     at svgio/source/svgreader/svggnode.cxx:107
 #19 0x00007fff940a2651 in svgio::svgreader::SvgNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer&, bool) const (this=0x2704ee70, rTarget=..., bReferenced=false)
     at svgio/source/svgreader/svgnode.cxx:529
 #20 0x00007fff940cc179 in svgio::svgreader::SvgSvgNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer&, bool) const (this=0x2704ee70, rTarget=..., bReferenced=false)
     at svgio/source/svgreader/svgsvgnode.cxx:304
 #21 0x00007fff940fa8cf in svgio::svgreader::(anonymous namespace)::XSvgParser::getDecomposition(com::sun::star::uno::Reference<com::sun::star::io::XInputStream> const&, rtl::OUString const&) (this=0x26ee6560, xSVGStream=uno::Reference to (comphelper::SequenceInputStream *) 0x2b4190e8, aAbsolutePath="") at svgio/source/svguno/xsvgparser.cxx:136
 #22 0x00007fff940fb0a5 in non-virtual thunk to svgio::svgreader::(anonymous namespace)::XSvgParser::getDecomposition(com::sun::star::uno::Reference<com::sun::star::io::XInputStream> const&, rtl::OUString const&) () at svgio/source/svguno/xsvgparser.cxx:188
 #23 0x00007fffef6af2f3 in VectorGraphicData::ensureSequenceAndRange() (this=0x70f6a70) at vcl/source/gdi/vectorgraphicdata.cxx:209
 #24 0x00007fffef6b01bc in VectorGraphicData::getRange() const (this=0x70f6a70) at vcl/source/gdi/vectorgraphicdata.cxx:355
 #25 0x00007fffef4bd4f0 in ImpGraphic::getPrefSize() const (this=0x5c29e90) at vcl/source/gdi/impgraph.cxx:793
 #26 0x00007fffef4bd049 in ImpGraphic::createSwapInfo() (this=0x5c29e90) at vcl/source/gdi/impgraph.cxx:360
 #27 0x00007fffef4c1960 in ImpGraphic::swapOut() (this=0x5c29e90) at vcl/source/gdi/impgraph.cxx:1304
 #28 0x00007fffef6f9ca8 in vcl::graphic::Manager::loopGraphicsAndSwapOut() (this=0x7ffff09c5508 <vcl::graphic::Manager::get()::gStaticManager>) at vcl/source/graphic/Manager.cxx:104
 #29 0x00007fffef6f9e1c in vcl::graphic::Manager::reduceGraphicMemory() (this=0x7ffff09c5508 <vcl::graphic::Manager::get()::gStaticManager>) at vcl/source/graphic/Manager.cxx:120

Change-Id: If76281620dd7026196543ff3f62f29105b1e2f38
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112772
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/vcl/inc/graphic/Manager.hxx b/vcl/inc/graphic/Manager.hxx
index 4319620..bfd9ef3 100644
--- a/vcl/inc/graphic/Manager.hxx
+++ b/vcl/inc/graphic/Manager.hxx
@@ -35,6 +35,7 @@
    o3tl::sorted_vector<ImpGraphic*> m_pImpGraphicList;
    std::chrono::seconds mnAllowedIdleTime;
    bool mbSwapEnabled;
    bool mbReducingGraphicMemory;
    sal_Int64 mnMemoryLimit;
    sal_Int64 mnUsedSize;
    Timer maSwapOutTimer;
diff --git a/vcl/source/graphic/Manager.cxx b/vcl/source/graphic/Manager.cxx
index 054a615..b6cb1c0 100644
--- a/vcl/source/graphic/Manager.cxx
+++ b/vcl/source/graphic/Manager.cxx
@@ -60,6 +60,7 @@
Manager::Manager()
    : mnAllowedIdleTime(10)
    , mbSwapEnabled(true)
    , mbReducingGraphicMemory(false)
    , mnMemoryLimit(300000000)
    , mnUsedSize(0)
    , maSwapOutTimer("graphic::Manager maSwapOutTimer")
@@ -117,6 +118,11 @@

    std::scoped_lock<std::recursive_mutex> aGuard(maMutex);

    // avoid recursive reduceGraphicMemory on reexport of tdf118346-1.odg to odg
    if (mbReducingGraphicMemory)
        return;
    mbReducingGraphicMemory = true;

    loopGraphicsAndSwapOut();

    sal_Int64 calculatedSize = 0;
@@ -132,6 +138,8 @@
    {
        mnUsedSize = calculatedSize;
    }

    mbReducingGraphicMemory = false;
}

sal_Int64 Manager::getGraphicSizeBytes(const ImpGraphic* pImpGraphic)