ofz#26357 Timeout in lwpfuzzer, 12s -> 1.3s

Change-Id: I1f1e2f1727b698d761adaf0d388d731fc80e280f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/104467
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

4 files changed, 19 insertions, 18 deletions

diff --git a/lotuswordpro/Library_lwpft.mk b/lotuswordpro/Library_lwpft.mk
index f35568d3647b..e7536e9f7a64 100644
--- a/lotuswordpro/Library_lwpft.mk
+++ b/lotuswordpro/Library_lwpft.mk
@@ -37,6 +37,7 @@ $(eval $(call gb_Library_use_libraries,lwpft,\
 
 $(eval $(call gb_Library_use_externals,lwpft,\
 	boost_headers \
+	mdds_headers \
     icui18n \
     icuuc \
     icu_headers \
diff --git a/lotuswordpro/source/filter/lwprowlayout.cxx b/lotuswordpro/source/filter/lwprowlayout.cxx
index 3321f294469e..9590e41d9670 100644
--- a/lotuswordpro/source/filter/lwprowlayout.cxx
+++ b/lotuswordpro/source/filter/lwprowlayout.cxx
@@ -238,9 +238,7 @@ void LwpRowLayout::ConvertRow(rtl::Reference<XFTable> const & pXFTable,sal_uInt8
                 m_ConnCellList[nMarkConnCell]->GetColID());
 
             //set all cell in this merge cell to cellsmap
-            for (sal_uInt16 nRowLoop = crowid; nRowLoop < nRowMark; nRowLoop++)
-                for (sal_uInt16 nColLoop = i; nColLoop < nColID+1; nColLoop++)
-                    pTableLayout->SetCellsMap(nRowLoop,nColLoop, xXFCell.get());
+            pTableLayout->SetCellsMap(crowid, i, nRowMark - 1, nColID, xXFCell.get());
 
             i += m_ConnCellList[nMarkConnCell]->GetNumcols();
             nMarkConnCell = FindNextMarkConnCell(static_cast<sal_uInt16>(nMarkConnCell),nEndCol);
@@ -433,8 +431,7 @@ void LwpRowLayout::ConvertCommonRow(rtl::Reference<XFTable> const & pXFTable, sa
         }
         xRow->AddCell(xCell);
 
-        for (sal_uInt8 j=nCellStartCol;j<=nCellEndCol;j++)
-            pTableLayout->SetCellsMap(crowid,j, xCell.get());//set to cellsmap
+        pTableLayout->SetCellsMap(crowid, nCellStartCol, crowid, nCellEndCol, xCell.get()); //set to cellsmap
     }
 
     pXFTable->AddRow(xRow);
diff --git a/lotuswordpro/source/filter/lwptablelayout.cxx b/lotuswordpro/source/filter/lwptablelayout.cxx
index 5ea2d42db9a4..2494501ff3d9 100644
--- a/lotuswordpro/source/filter/lwptablelayout.cxx
+++ b/lotuswordpro/source/filter/lwptablelayout.cxx
@@ -1402,16 +1402,17 @@ void LwpTableLayout::ConvertDefaultRow(rtl::Reference<XFTable> const & pXFTable,
 
     pXFTable->AddRow(xRow);
 }
+
 /**
  * @short   set cell map info
  * @param   pXFCell - pointer to xfcell
  * @param   nRow - row id
  * @param   nCol - column id
  */
-void LwpTableLayout::SetCellsMap(sal_uInt16 nRow, sal_uInt8 nCol, XFCell* pXFCell)
+void LwpTableLayout::SetCellsMap(sal_uInt16 nRow1, sal_uInt8 nCol1,
+                                 sal_uInt16 nRow2, sal_uInt8 nCol2, XFCell* pXFCell)
 {
-    // combine the 16bit nRow and 8bit nCol into a single 32bit number
-    m_CellsMap.insert(std::make_pair((nRow << 8) | nCol, pXFCell));
+    m_CellsMap.insert({{nRow1, nCol1}, {nRow2, nCol2}}, pXFCell);
 }
 
 /**
@@ -1422,17 +1423,17 @@ void LwpTableLayout::SetCellsMap(sal_uInt16 nRow, sal_uInt8 nCol, XFCell* pXFCel
  */
 XFCell* LwpTableLayout::GetCellsMap(sal_uInt16 nRow, sal_uInt8 nCol)
 {
-    RowCol pos = (nRow << 8) | nCol;
-    auto iter =  m_CellsMap.find(pos);
-    if (iter == m_CellsMap.end())
-        return nullptr;
-    return iter->second;
+    auto results = m_CellsMap.search({{nRow, nCol}, {nRow, nCol}}, rt_type::search_type::overlap);
+    if (results.begin() == results.end())
+       return nullptr;
+    // return the last thing inserted for this position
+    return *std::prev(results.end());
 }
 /**
  * @descr   Get row layout by row id
  * @param   nRow - row id
  */
- LwpRowLayout* LwpTableLayout::GetRowLayout(sal_uInt16 nRow)
+LwpRowLayout* LwpTableLayout::GetRowLayout(sal_uInt16 nRow)
 {
     LwpObjectID *pRowID = &GetChildHead();
     LwpRowLayout * pRowLayout = dynamic_cast<LwpRowLayout *>(pRowID->obj().get());
diff --git a/lotuswordpro/source/filter/lwptablelayout.hxx b/lotuswordpro/source/filter/lwptablelayout.hxx
index 21ab84ec1c67..fe8312414587 100644
--- a/lotuswordpro/source/filter/lwptablelayout.hxx
+++ b/lotuswordpro/source/filter/lwptablelayout.hxx
@@ -64,10 +64,11 @@
 #include "lwplayout.hxx"
 #include <xfilter/xftable.hxx>
 
+#include <mdds/rtree.hpp>
+
 #include <vector>
 #include <map>
 #include <memory>
-#include <unordered_map>
 
 class XFTableStyle;
 class XFTable;
@@ -148,7 +149,7 @@ public:
     void ConvertTable(rtl::Reference<XFTable> const & pXFTable, sal_uInt16 nStartRow,
                 sal_uInt16 nEndRow,sal_uInt8 nStartCol,sal_uInt8 nEndCol);
     const OUString& GetDefaultRowStyleName() const {return m_DefaultRowStyleName;}
-    void SetCellsMap(sal_uInt16 nRow,sal_uInt8 nCol,XFCell* pXFCell);
+    void SetCellsMap(sal_uInt16 nRow1, sal_uInt8 nCol1, sal_uInt16 nRow2, sal_uInt8 nCol2, XFCell* pXFCell);
     XFCell* GetCellsMap(sal_uInt16 nRow,sal_uInt8 nCol);
    const  std::map<sal_uInt16,LwpRowLayout*>& GetRowsMap() const {return m_RowsMap;}
     LwpRowLayout* GetRowLayout(sal_uInt16 nRow);
@@ -165,8 +166,9 @@ private:
     void SplitConflictCells();
     rtl::Reference<XFTable> m_pXFTable;
     bool m_bConverted;
-    typedef sal_Int32 RowCol;
-    std::unordered_map<RowCol, XFCell*> m_CellsMap;
+
+    using rt_type = mdds::rtree<int, XFCell*>;
+    rt_type m_CellsMap;
 
     void PutCellVals(LwpFoundry* pFoundry, LwpObjectID aTableID);
 };