1 files changed, 153 insertions, 0 deletions
diff --git a/sc/inc/formulagroup.hxx b/sc/inc/formulagroup.hxx
new file mode 100644
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+++ b/sc/inc/formulagroup.hxx
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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/.
+ */
+
+#ifndef INCLUDED_SC_INC_FORMULAGROUP_HXX
+#define INCLUDED_SC_INC_FORMULAGROUP_HXX
+
+#include <config_feature_opencl.h>
+
+#include "address.hxx"
+#include "calcconfig.hxx"
+#include "types.hxx"
+#include "stlalgorithm.hxx"
+
+#if HAVE_FEATURE_OPENCL
+#include <opencl/platforminfo.hxx>
+#endif
+
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+class ScDocument;
+class ScTokenArray;
+class ScFormulaCell;
+
+namespace sc {
+
+struct FormulaGroupEntry
+{
+    union
+    {
+        ScFormulaCell* mpCell;   // non-shared formula cell
+        ScFormulaCell** mpCells; // pointer to the top formula cell in a shared group.
+    };
+
+    size_t mnRow;
+    size_t mnLength;
+    bool mbShared;
+
+    FormulaGroupEntry( ScFormulaCell** pCells, size_t nRow, size_t nLength );
+
+    FormulaGroupEntry( ScFormulaCell* pCell, size_t nRow );
+};
+
+// Despite the name, this is actually a cache of cell values, used by OpenCL
+// code ... I think. And obviously it's not really a struct either.
+struct FormulaGroupContext
+{
+    typedef AlignedAllocator<double,256> DoubleAllocType;
+    typedef std::vector<double, DoubleAllocType> NumArrayType;
+    typedef std::vector<rtl_uString*> StrArrayType;
+    typedef std::vector<std::unique_ptr<NumArrayType>> NumArrayStoreType;
+    typedef std::vector<std::unique_ptr<StrArrayType>> StrArrayStoreType;
+
+    struct ColKey
+    {
+        SCTAB mnTab;
+        SCCOL mnCol;
+
+        struct Hash
+        {
+            size_t operator() ( const ColKey& rKey ) const;
+        };
+
+        ColKey( SCTAB nTab, SCCOL nCol );
+
+        bool operator== ( const ColKey& r ) const;
+    };
+
+    struct ColArray
+    {
+        NumArrayType* mpNumArray;
+        StrArrayType* mpStrArray;
+        size_t mnSize;
+
+        ColArray( NumArrayType* pNumArray, StrArrayType* pStrArray );
+    };
+
+    typedef std::unordered_map<ColKey, ColArray, ColKey::Hash> ColArraysType;
+
+    NumArrayStoreType m_NumArrays; /// manage life cycle of numeric arrays.
+    StrArrayStoreType m_StrArrays; /// manage life cycle of string arrays.
+
+    ColArraysType maColArrays; /// keep track of longest array for each column.
+
+    ColArray* getCachedColArray( SCTAB nTab, SCCOL nCol, size_t nSize );
+
+    ColArray* setCachedColArray(
+        SCTAB nTab, SCCOL nCol, NumArrayType* pNumArray, StrArrayType* pStrArray );
+
+    void discardCachedColArray(SCTAB nTab, SCCOL nCol);
+
+    void ensureStrArray( ColArray& rColArray, size_t nArrayLen );
+    void ensureNumArray( ColArray& rColArray, size_t nArrayLen );
+
+    FormulaGroupContext();
+    FormulaGroupContext(const FormulaGroupContext&) = delete;
+    const FormulaGroupContext& operator=(const FormulaGroupContext&) = delete;
+    ~FormulaGroupContext();
+};
+
+/**
+ * Abstract base class for a "compiled" formula
+ */
+class CompiledFormula
+{
+public:
+    CompiledFormula();
+    virtual ~CompiledFormula();
+};
+
+/**
+ * Abstract base class for vectorised formula group interpreters,
+ * plus a global instance factory.
+ */
+class SC_DLLPUBLIC FormulaGroupInterpreter
+{
+    static FormulaGroupInterpreter *msInstance;
+
+protected:
+    ScCalcConfig maCalcConfig;
+
+    FormulaGroupInterpreter() {}
+    virtual ~FormulaGroupInterpreter() {}
+
+    /// Merge global and document specific settings.
+    void MergeCalcConfig(const ScDocument& rDoc);
+
+public:
+    static FormulaGroupInterpreter *getStatic();
+#if HAVE_FEATURE_OPENCL
+    static void fillOpenCLInfo(std::vector<OpenCLPlatformInfo>& rPlatforms);
+    static bool switchOpenCLDevice(const OUString& rDeviceId, bool bAutoSelect, bool bForceEvaluation = false);
+    // This is intended to be called from opencl-test.cxx only
+    static void enableOpenCL_UnitTestsOnly();
+    static void disableOpenCL_UnitTestsOnly();
+    static void getOpenCLDeviceInfo(sal_Int32& rDeviceId, sal_Int32& rPlatformId);
+#endif
+    virtual ScMatrixRef inverseMatrix(const ScMatrix& rMat) = 0;
+    virtual bool interpret(ScDocument& rDoc, const ScAddress& rTopPos, ScFormulaCellGroupRef& xGroup, ScTokenArray& rCode) = 0;
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */