Avoid pointless thin wrapper layer

Also works around some warnings from our Clang plug-ins.

Change-Id: Ic9d2bbafefac345b6319300514735143f92dd196

sc/source/core/inc/formulagroupcl.hxx

+/* -*- 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_SOURCE_CORE_INC_FORMULAGROUPCL_HXX
+#define INCLUDED_SC_SOURCE_CORE_INC_FORMULAGROUPCL_HXX
+
+#include "formulagroup.hxx"
+
+namespace sc { namespace opencl {
+
+class FormulaGroupInterpreterOpenCL : public FormulaGroupInterpreter
+{
+public:
+    FormulaGroupInterpreterOpenCL() :
+        FormulaGroupInterpreter()
+    {
+    }
+    virtual ~FormulaGroupInterpreterOpenCL()
+    {
+    }
+
+    virtual ScMatrixRef inverseMatrix( const ScMatrix& rMat ) SAL_OVERRIDE;
+    virtual CompiledFormula* createCompiledFormula( ScDocument& rDoc,
+        const ScAddress& rTopPos,
+        ScFormulaCellGroup& rGroup,
+        ScTokenArray& rCode ) SAL_OVERRIDE;
+    virtual bool interpret( ScDocument& rDoc, const ScAddress& rTopPos,
+        ScFormulaCellGroupRef& xGroup, ScTokenArray& rCode ) SAL_OVERRIDE;
+};
+
+}} // namespace sc::opencl
+
+#endif // INCLUDED_SC_SOURCE_CORE_INC_FORMULAGROUPCL_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sc/source/core/opencl/clcc/clew.cxx

@@ -4,7 +4,7 @@
 //  Distributed under the Boost Software License, Version 1.0.
 //  (See accompanying file license.txt)
 
-#include "clew.h"
+#include "clcc/clew.h"
 
 //! \file clew.c
 //! \brief OpenCL run-time loader source

sc/source/core/opencl/formulagroupcl.cxx

@@ -8,6 +8,7 @@
  */
 
 #include "formulagroup.hxx"
+#include "formulagroupcl.hxx"
 #include "clkernelthread.hxx"
 #include "grouptokenconverter.hxx"
 #include "document.hxx"
@@ -3510,26 +3511,6 @@ const DynamicKernelArgument* SymbolTable::DeclRefArg(
     }
 }
 
-class FormulaGroupInterpreterOpenCL : public FormulaGroupInterpreter
-{
-public:
-    FormulaGroupInterpreterOpenCL() :
-        FormulaGroupInterpreter()
-    {
-    }
-    virtual ~FormulaGroupInterpreterOpenCL()
-    {
-    }
-
-    virtual ScMatrixRef inverseMatrix( const ScMatrix& rMat ) SAL_OVERRIDE;
-    virtual CompiledFormula* createCompiledFormula( ScDocument& rDoc,
-        const ScAddress& rTopPos,
-        ScFormulaCellGroup& rGroup,
-        ScTokenArray& rCode ) SAL_OVERRIDE;
-    virtual bool interpret( ScDocument& rDoc, const ScAddress& rTopPos,
-        ScFormulaCellGroupRef& xGroup, ScTokenArray& rCode ) SAL_OVERRIDE;
-};
-
 ScMatrixRef FormulaGroupInterpreterOpenCL::inverseMatrix( const ScMatrix& )
 {
     return NULL;
@@ -3730,41 +3711,4 @@ bool FormulaGroupInterpreterOpenCL::interpret( ScDocument& rDoc,
 
 }} // namespace sc::opencl
 
-extern "C" {
-
-sc::FormulaGroupInterpreter*
-createFormulaGroupOpenCLInterpreter()
-{
-    return new sc::opencl::FormulaGroupInterpreterOpenCL();
-}
-
-size_t getOpenCLPlatformCount()
-{
-    return sc::opencl::getOpenCLPlatformCount();
-}
-
-void fillOpenCLInfo(
-    sc::OpenCLPlatformInfo* pInfos, size_t nInfoSize )
-{
-    const std::vector<sc::OpenCLPlatformInfo>& rPlatforms =
-        sc::opencl::fillOpenCLInfo();
-    size_t n = std::min(rPlatforms.size(), nInfoSize);
-    for (size_t i = 0; i < n; ++i)
-        pInfos[i] = rPlatforms[i];
-}
-
-bool switchOpenCLDevice(
-    const OUString* pDeviceId, bool bAutoSelect,
-    bool bForceEvaluation )
-{
-    return sc::opencl::switchOpenCLDevice(pDeviceId, bAutoSelect, bForceEvaluation);
-}
-
-void getOpenCLDeviceInfo( size_t* pDeviceId, size_t* pPlatformId )
-{
-    sc::opencl::getOpenCLDeviceInfo(*pDeviceId, *pPlatformId);
-}
-
-} // extern "C"
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sc/source/core/tool/formulagroup.cxx

@@ -10,6 +10,7 @@
 #include <config_features.h>
 
 #include "formulagroup.hxx"
+#include "formulagroupcl.hxx"
 #include "document.hxx"
 #include "formulacell.hxx"
 #include "tokenarray.hxx"
@@ -31,11 +32,7 @@
 
 #if HAVE_FEATURE_OPENCL
 
-extern "C" size_t getOpenCLPlatformCount(void);
-extern "C" void fillOpenCLInfo(sc::OpenCLPlatformInfo*, size_t);
-extern "C" bool switchOpenCLDevice(const OUString*, bool, bool);
-extern "C" sc::FormulaGroupInterpreter* createFormulaGroupOpenCLInterpreter();
-extern "C" void getOpenCLDeviceInfo(size_t*, size_t*);
+#include "openclwrapper.hxx"
 
 #endif
 
@@ -543,13 +540,14 @@ void FormulaGroupInterpreter::fillOpenCLInfo(std::vector<OpenCLPlatformInfo>& rP
 #if !HAVE_FEATURE_OPENCL
     (void) rPlatforms;
 #else
-    size_t nPlatforms = ::getOpenCLPlatformCount();
+    size_t nPlatforms = sc::opencl::getOpenCLPlatformCount();
     if (!nPlatforms)
         return;
 
-    std::vector<OpenCLPlatformInfo> aPlatforms(nPlatforms);
-    ::fillOpenCLInfo(&aPlatforms[0], aPlatforms.size());
-    rPlatforms.swap(aPlatforms);
+    const std::vector<sc::OpenCLPlatformInfo>& rPlatformsFromWrapper =
+        sc::opencl::fillOpenCLInfo();
+
+    rPlatforms.assign(rPlatformsFromWrapper.begin(), rPlatformsFromWrapper.end());
 #endif
 }
 
@@ -571,7 +569,7 @@ bool FormulaGroupInterpreter::switchOpenCLDevice(const OUString& rDeviceId, bool
         return true;
     }
 #if HAVE_FEATURE_OPENCL
-    bool bSuccess = ::switchOpenCLDevice(&rDeviceId, bAutoSelect, bForceEvaluation);
+    bool bSuccess = sc::opencl::switchOpenCLDevice(&rDeviceId, bAutoSelect, bForceEvaluation);
     if(!bSuccess)
         return false;
 #else
@@ -584,7 +582,7 @@ bool FormulaGroupInterpreter::switchOpenCLDevice(const OUString& rDeviceId, bool
 #if HAVE_FEATURE_OPENCL
     if ( ScInterpreter::GetGlobalConfig().mbOpenCLEnabled )
     {
-        msInstance = ::createFormulaGroupOpenCLInterpreter();
+        msInstance = new sc::opencl::FormulaGroupInterpreterOpenCL();
         return msInstance != NULL;
     }
 #else
@@ -606,7 +604,7 @@ void FormulaGroupInterpreter::getOpenCLDeviceInfo(sal_Int32& rDeviceId, sal_Int3
     size_t aDeviceId = static_cast<size_t>(-1);
     size_t aPlatformId = static_cast<size_t>(-1);
 
-    ::getOpenCLDeviceInfo(&aDeviceId, &aPlatformId);
+    sc::opencl::getOpenCLDeviceInfo(aDeviceId, aPlatformId);
     rDeviceId = aDeviceId;
     rPlatformId = aPlatformId;
 #endif