GPU Calc: implement fix for ABS

AMLOEXT-47 FIX

Change-Id: I438ad01d717dbc34ea8bc45e8f6de4f7d0c2bf2c
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>

sc/source/core/opencl/formulagroupcl.cxx

@@ -1023,6 +1023,11 @@ DynamicKernelSoPArguments::DynamicKernelSoPArguments(
             case ocSinHyp:
                 mvSubArguments.push_back(SoPHelper(ts,
                          ft->Children[i],new OpSinh));
+                break;
+            case ocAbs:
+                mvSubArguments.push_back(SoPHelper(ts,
+                         ft->Children[i], new OpAbs));
+                break;
             case ocExternal:
                 if ( !(pChild->GetExternal().compareTo(OUString(
                     "com.sun.star.sheet.addin.Analysis.getEffect"))))

sc/source/core/opencl/op_math.cxx

@@ -110,6 +110,38 @@ void OpSinh::GenSlidingWindowFunction(std::stringstream &ss,
     ss << "}";
 }
 
+void OpAbs::GenSlidingWindowFunction(std::stringstream &ss,
+    const std::string sSymName, SubArguments &vSubArguments)
+{
+    ss << "\ndouble " << sSymName;
+    ss << "_"<< BinFuncName() <<"(";
+    for (unsigned i = 0; i < vSubArguments.size(); i++)
+    {
+        if (i)
+            ss << ",";
+        vSubArguments[i]->GenSlidingWindowDecl(ss);
+    }
+    ss << ") {\n";
+    ss << "    int gid0   = get_global_id(0);\n";
+    ss << "    double tmp = " << GetBottom() << ";\n";
+#ifdef ISNAN
+    FormulaToken *tmpCur0 = vSubArguments[0]->GetFormulaToken();
+    const formula::SingleVectorRefToken*tmpCurDVR0=
+        dynamic_cast<const formula::SingleVectorRefToken *>(tmpCur0);
+    ss << "    int buffer_len = ";
+    ss << tmpCurDVR0->GetArrayLength();
+    ss << ";\n";
+    ss << "    if((gid0)>=buffer_len || isNan(";
+    ss << vSubArguments[0]->GenSlidingWindowDeclRef();
+    ss << "))\n";
+    ss << "        tmp = " << GetBottom() << ";\n    else \n";
+#endif
+    ss << "        tmp = ";
+    ss << vSubArguments[0]->GenSlidingWindowDeclRef();
+    ss << ";\n";
+    ss << "    return fabs(tmp);\n";
+    ss << "}";
+}
 
 }}
 

sc/source/core/opencl/op_math.hxx

@@ -38,6 +38,14 @@ public:
             const std::string sSymName, SubArguments &vSubArguments);
     virtual std::string BinFuncName(void) const { return "Sinh"; }
 };
+
+class OpAbs:public Normal{
+public:
+    virtual void GenSlidingWindowFunction(std::stringstream &ss,
+            const std::string sSymName, SubArguments &vSubArguments);
+    virtual std::string GetBottom(void) { return "0.0"; }
+    virtual std::string BinFuncName(void) const { return "ScAbs"; }
+};
 }}
 
 #endif