} // end of ComputeOmInitFromVectorsPlan()
/// <summary>
/// Computes the signs for the plan as computed by GetOmInitFromVectorsPlan().
///
/// Because the basis blades in the domain of 'om' do not have to be in canonical order,
/// there may be some signs required to correctly executed the plan
/// </summary>
/// <param name="S"></param>
/// <param name="om"></param>
/// <param name="plan"></param>
/// <returns>signs for the plan</returns>
public static double[][] ComputeOmInitFromVectorsSigns(Specification S, OM om, uint[][][] plan)
{
double[][] result = new double[S.m_dimension + 1][];
for (int g = 1; g <= S.m_dimension; g++)
{
result[g] = new double[om.DomainForGrade(g).Length];
for (int d = 0; d < om.DomainForGrade(g).Length; d++)
{
// get domain blade we have to construct
RefGA.BasisBlade D = om.DomainForGrade(g)[d];
// follow the plan to construct the blade
RefGA.BasisBlade P = RefGA.BasisBlade.ONE;
for (int p = 0; p < plan[g][d].Length; p++)
{
G25.Tuple <RefGA.BasisBlade, int, int> info = GetDomainBladeInfo(S, om, plan[g][d][p]);
P = RefGA.BasisBlade.op(P, info.Value1);
}
// compute sign difference & store
double s = D.scale / P.scale;
result[g][d] = s;
}
}
return(result);
} // end of ComputeOmInitFromVectorsSigns()
/// <summary>
/// Returns a dictionary (value -> coordinateAccessString) that can be used to initialize a general OM to identity.
///
/// Use the dictionary as follows: foreach(string str in dictionary.value) generateCode{str = dictionary.key}
/// </summary>
public static Dictionary <double, List <string> > GetGomIdentityInitCode(Specification S, G25.GOM gom, string gomName, string matrixName)
{
Dictionary <double, List <string> > nonZero = new Dictionary <double, List <string> >(); // collect a.m[...] = value in here, by value
string refStr = (S.OutputC()) ? gomName + "->" : "";
// figure out which elements need to get something assigned
// for all blades in the domain, find matching blade in range, and add it to nonZero
for (int g = 1; g < S.m_GOM.Domain.Length; g++)
{
for (int d = 0; d < S.m_GOM.Domain[g].Length; d++)
{
RefGA.BasisBlade D = S.m_GOM.Domain[g][d];
for (int r = 0; r < S.m_GOM.Range[g].Length; r++)
{
RefGA.BasisBlade R = S.m_GOM.Domain[g][r];
if (D.bitmap == R.bitmap)
{
double val = D.scale / R.scale;
string coordStr = refStr + matrixName + g + "[" + (r * S.m_GOM.Domain[g].Length + d) + "]";
if (!nonZero.ContainsKey(val))
{
nonZero[val] = new List <string>();
}
nonZero[val].Add(coordStr);
continue; // no need to search other blades in range
}
}
}
} // end of loop over all grades of the OM
return(nonZero);
}
/// <summary>
/// Takes a general multivector specification (G25.GMV) and converts it into a one symbolic multivector per group/grade part.
///
/// The symbolic weights of the multivector are the coordinates of the GMV, labelled according to 'gmvName'.
/// Currently, the indices start at zero for each group.
/// </summary>
/// <param name="S">Specification of the algebra. Used for the access convention (. or ->) and for how to name the coordinates ([0] or e1, e2, e3).</param>
/// <param name="gmv">The specification of the general multivector.</param>
/// <param name="gmvName">Name the variable should have.</param>
/// <param name="ptr">Is 'gmvName' a pointer? (not used currently)</param>
/// <param name="groupIdx">Index of group/grade to convert (use -1 for all groups)</param>
/// <returns></returns>
public static RefGA.Multivector[] GMVtoSymbolicMultivector(Specification S, G25.GMV gmv, String gmvName, bool ptr, int groupIdx)
{
RefGA.Multivector[] R = new RefGA.Multivector[gmv.NbGroups];
//String accessStr = (ptr) ? "->" : ".";
for (int g = 0; g < gmv.NbGroups; g++)
{
if ((groupIdx >= 0) && (g != groupIdx))
{
continue; // only one group requested?
}
RefGA.BasisBlade[] B = gmv.Group(g);
RefGA.BasisBlade[] L = new RefGA.BasisBlade[B.Length];
for (int i = 0; i < B.Length; i++)
{
RefGA.BasisBlade b = B[i];
String fullCoordName = gmvName + "[" + i + "]";
// merge
L[i] = new RefGA.BasisBlade(b.bitmap, b.scale, fullCoordName);
}
R[g] = new RefGA.Multivector(L);
}
return(R);
} // end of function GMVtoSymbolicMultivector()
public static G25.VariableType CreateSyntheticSMVtype(Specification S, CGdata cgd, FloatType FT, RefGA.Multivector value)
{
// make up list of basis blades
rsbbp.BasisBlade[] L = new rsbbp.BasisBlade[value.BasisBlades.Length];
for (int i = 0; i < value.BasisBlades.Length; i++)
{
RefGA.BasisBlade B = value.BasisBlades[i];
if (B.symScale == null)
{
L[i] = new rsbbp.BasisBlade(new RefGA.BasisBlade(B.bitmap), B.scale); // constant value
}
else
{
L[i] = new rsbbp.BasisBlade(new RefGA.BasisBlade(B.bitmap)); // non-const value
}
}
// get other required info
String name = "nameOfType";
SMV.MULTIVECTOR_TYPE mvType = SMV.MULTIVECTOR_TYPE.MULTIVECTOR;
String comment = "MISSING; PLEASE ADD TO SPECIFICATION";
//String constantName = null;
// create the type
G25.SMV synSMV = new G25.SMV(name, L, mvType, comment);
// throw exception
throw new G25.UserException("Missing specialized multivector type.\n" +
"Please add the following XML to the specification to fix the dependency:\n" +
XML.SMVtoXmlString(S, synSMV));
}
public static void GenerateBasisElementsArray(Specification S, G25.CG.Shared.CGdata cgd, StringBuilder SB)
{
G25.GMV gmv = S.m_GMV;
// basis vectors in basis elements
SB.AppendLine("const int " + S.m_namespace + "_basisElements[" + (1 << S.m_dimension) + "][" + (S.m_dimension + 1) + "] = {");
{
bool comma = false;
for (int i = 0; i < gmv.NbGroups; i++)
{
for (int j = 0; j < gmv.Group(i).Length; j++)
{
if (comma)
{
SB.Append(",\n");
}
RefGA.BasisBlade B = gmv.Group(i)[j];
SB.Append("\t{");
for (int k = 0; k < S.m_dimension; k++)
{
if ((B.bitmap & (1 << k)) != 0)
{
SB.Append(k + ", ");
}
}
SB.Append("-1}");
comma = true;
}
}
}
SB.AppendLine("");
SB.AppendLine("};");
}
/// <summary>
/// Takes a specialized multivector specification (G25.SMV) and converts it into a symbolic multivector.
/// The symbolic weights of the multivector are the coordinates of the SMV, labelled according to 'smvName'.
///
/// An example is <c>A.c[0]*e1 + A.c[1]*e2 + A.c[2]*e3</c>.
/// </summary>
/// <param name="S">Specification of the algebra. Used for the access convention (. or ->) and for how to name the coordinates ([0] or e1, e2, e3).</param>
/// <param name="smv">The specification of the specialized multivector.</param>
/// <param name="smvName">Name the variable should have.</param>
/// <param name="ptr">Is 'smvName' a pointer? This changes the way the variable is accessed.</param>
/// <returns></returns>
public static RefGA.Multivector SMVtoSymbolicMultivector(Specification S, G25.SMV smv, string smvName, bool ptr)
{
int idx = 0; // index into 'L'
RefGA.BasisBlade[] L = new RefGA.BasisBlade[smv.NbConstBasisBlade + smv.NbNonConstBasisBlade];
string[] AL = CodeUtil.GetAccessStr(S, smv, smvName, ptr);
// get non-const coords
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
{
// get basis blade of coordinate
RefGA.BasisBlade B = smv.NonConstBasisBlade(i);
// merge
L[idx++] = new RefGA.BasisBlade(B.bitmap, B.scale, AL[i]);
}
// get const coords
for (int i = 0; i < smv.NbConstBasisBlade; i++)
{
// get value of coordinate
double value = smv.ConstBasisBladeValue(i);
// get basis blade of coordinate
RefGA.BasisBlade B = smv.ConstBasisBlade(i);
// merge
L[idx++] = new RefGA.BasisBlade(B.bitmap, B.scale * value);
}
return(new RefGA.Multivector(L));
} // end of SMVtoSymbolicMultivector()
} // end of ComputeOmInitFromVectorsSigns()
/// <summary>
/// Returns info about <c>bitmap</c>.
///
/// If bitmap is not in the domain of <c>om</c>, the basis blade in the returned value will be null,
/// and the domainIdx will be -1.
///
/// If the grade of the bitmap is 1, the domainIdx will be -1 because it is
/// assumed to be an input vector.
/// </summary>
/// <param name="S"></param>
/// <param name="om"></param>
/// <param name="bitmap"></param>
/// <returns><c>BasisBlade, grade, domainIdx</c> for <c>bitmap</c></returns>
public static G25.Tuple <RefGA.BasisBlade, int, int> GetDomainBladeInfo(Specification S, OM om, uint bitmap)
{
int grade = (int)RefGA.Bits.BitCount(bitmap);
if (grade == 1) // basis vector
{
return(new G25.Tuple <RefGA.BasisBlade, int, int>(new RefGA.BasisBlade(bitmap), grade, -1));
}
// find the bitmap in the domain
RefGA.BasisBlade B = null;
int domainIdx = -1;
for (int i = 0; i < om.DomainForGrade(grade).Length; i++)
{
if (bitmap == om.DomainForGrade(grade)[i].bitmap)
{
domainIdx = i;
B = om.DomainForGrade(grade)[i];
break;
}
}
return(new G25.Tuple <RefGA.BasisBlade, int, int>(B, grade, domainIdx));
} // end of GetDomainBladeInfo()
} // end of WriteSet()
/// <summary>
/// Writes a function to set an SMV struct to an array of specified coordinates, for all floating point types.
/// </summary>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteSetArray(Specification S, G25.CG.Shared.CGdata cgd)
{
StringBuilder declSB = cgd.m_declSB;
StringBuilder defSB = (S.m_inlineSet) ? cgd.m_inlineDefSB : cgd.m_defSB;
declSB.AppendLine("");
defSB.AppendLine("");
foreach (G25.FloatType FT in S.m_floatTypes)
{
foreach (G25.SMV smv in S.m_SMV)
{
if (smv.NbNonConstBasisBlade == 0)
{
continue;
}
string typeName = FT.GetMangledName(S, smv.Name);
string funcName = typeName + "_setArray";
bool mustCast = false;
string[] argTypename = new string[1] {
FT.type
};
string[] argName = new string[1] {
"A"
};
System.Collections.ArrayList L = new System.Collections.ArrayList();
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
{
RefGA.BasisBlade B = smv.NonConstBasisBlade(i);
//argTypename[i] = FT.type;
String coordStr = argName[0] + "[" + i + "]";
//argName[i] = coordStr;
L.Add(new RefGA.BasisBlade(B.bitmap, B.scale, coordStr));
}
RefGA.Multivector mvValue = new RefGA.Multivector(L);
G25.fgs F = new G25.fgs(funcName, funcName, "", argTypename, argName, new String[] { FT.type }, null, null, null); // null, null, null = metricName, comment, options
F.InitArgumentPtrFromTypeNames(S);
F.SetArgumentPtr(0, true); // first argument is a pointer to array
bool computeMultivectorValue = false;
G25.CG.Shared.FuncArgInfo returnArgument = new G25.CG.Shared.FuncArgInfo(S, F, -1, FT, smv.Name, computeMultivectorValue);
int nbArgs = 1; // one array of coordinates
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, nbArgs, FT, null, computeMultivectorValue);
declSB.AppendLine("/** Sets " + typeName + " to specified coordinates */");
bool staticFunc = false;
G25.CG.Shared.Functions.WriteAssignmentFunction(S, cgd,
S.m_inlineSet, staticFunc, "void", null, funcName, returnArgument, FAI, FT, mustCast, smv, returnArgument.Name, returnArgument.Pointer, mvValue);
}
}
} // end of WriteSetArray()
} // end of WriteLargestCoordinateFunctions()
/// <summary>
/// Writes code to extract the scalar part of an SMV via a non-member function.
/// </summary>
/// <param name="S"></param>
/// <param name="cgd">Results go here. Also intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteExtractScalarPart(Specification S, G25.CG.Shared.CGdata cgd)
{
StringBuilder declSB = cgd.m_declSB;
StringBuilder defSB = (S.m_inlineFunctions) ? cgd.m_inlineDefSB : cgd.m_defSB;
declSB.AppendLine("");
defSB.AppendLine("");
const string smvName = "x";
const bool ptr = false;
RefGA.BasisBlade scalarBlade = RefGA.BasisBlade.ONE;
string inlineStr = G25.CG.Shared.Util.GetInlineString(S, S.m_inlineFunctions, " ");
foreach (G25.FloatType FT in S.m_floatTypes)
{
foreach (G25.SMV smv in S.m_SMV)
{
string[] AS = G25.CG.Shared.CodeUtil.GetAccessStr(S, smv, smvName, ptr);
string className = FT.GetMangledName(S, smv.Name);
string funcName = "_" + FT.type;
string altFuncName = "_Float";
string comment = "/// Returns scalar part of " + className;
declSB.AppendLine(comment);
string funcDecl = FT.type + " " + funcName + "(const " + className + " &" + smvName + ")";
declSB.Append(funcDecl);
declSB.AppendLine(";");
declSB.AppendLine(comment);
string altFuncDecl = FT.type + " " + altFuncName + "(const " + className + " &" + smvName + ")";
declSB.Append(G25.CG.Shared.Util.GetInlineString(S, true, " ") + altFuncDecl + " {return " + funcName + "(" + smvName + "); }");
declSB.AppendLine(";");
defSB.Append(inlineStr + funcDecl);
{
defSB.AppendLine(" {");
int elementIdx = smv.GetElementIdx(scalarBlade);
double multiplier = (elementIdx >= 0) ? 1.0 / smv.BasisBlade(0, elementIdx).scale : 1.0;
if ((elementIdx >= 0) && (!smv.IsCoordinateConstant(elementIdx)))
{
string multiplerString = (multiplier != 1.0) ? (FT.DoubleToString(S, multiplier) + " * ") : "";
defSB.AppendLine("\treturn " + multiplerString + AS[smv.BladeIdxToNonConstBladeIdx(elementIdx)] + ";");
}
else
{
double constValue = (elementIdx >= 0) ? smv.ConstBasisBladeValue(smv.BladeIdxToConstBladeIdx(elementIdx)) : 0.0;
defSB.AppendLine("\treturn " + FT.DoubleToString(S, multiplier * constValue) + ";");
}
defSB.AppendLine("}");
}
} // end of loop over all smvs
} // end of loop over all float types
} // end of WriteExtractScalarPart()
/// <summary>
/// Utility function which takes a specialized multivector and returns an array of its variable
/// RefGA.BasisBlades. I.e., extracts 'smv.NonConstBasisBlade()'
/// </summary>
/// <param name="smv">Specialized multivector.</param>
/// <returns>Array of non-constant basis blades of 'smv'.</returns>
public static RefGA.BasisBlade[] GetNonConstBladeList(G25.SMV smv)
{
RefGA.BasisBlade[] BL = new RefGA.BasisBlade[smv.NbNonConstBasisBlade];
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
BL[i] = smv.NonConstBasisBlade(i);
return BL;
}
/// <summary>
/// Utility function which takes a specialized multivector and returns an array of its variable
/// RefGA.BasisBlades. I.e., extracts 'smv.NonConstBasisBlade()'
/// </summary>
/// <param name="smv">Specialized multivector.</param>
/// <returns>Array of non-constant basis blades of 'smv'.</returns>
public static RefGA.BasisBlade[] GetNonConstBladeList(G25.SMV smv)
{
RefGA.BasisBlade[] BL = new RefGA.BasisBlade[smv.NbNonConstBasisBlade];
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
BL[i] = smv.NonConstBasisBlade(i);
return BL;
}
/// <returns>'L' convert to a double array</returns>
public static RefGA.BasisBlade[][] ListToDoubleArray(List <List <RefGA.BasisBlade> > L)
{
RefGA.BasisBlade[][] A = new RefGA.BasisBlade[L.Count][];
for (int i = 0; i < L.Count; i++)
{
A[i] = L[i].ToArray();
}
return(A);
}
/// <summary>
/// Writes code for m_name = m_value.
/// </summary>
/// <param name="SB">Where the code goes.</param>
/// <param name="S">Specification of algebra.</param>
/// <param name="cgd">Not used yet.</param>
public override void Write(StringBuilder SB, Specification S, G25.CG.Shared.CGdata cgd)
{
if (m_type is G25.SMV)
{
G25.SMV dstSmv = m_type as G25.SMV;
if (m_declareVariable)
{
SB.AppendLine("/* cannot yet assign and declare SMV type at the same time */");
}
RefGA.BasisBlade[] BL = BasisBlade.GetNonConstBladeList(dstSmv);
string[] accessStr = CodeUtil.GetAccessStr(S, dstSmv, m_name, m_ptr);
bool writeZeros = true;
string[] valueStr = CodeUtil.GetAssignmentStrings(S, m_floatType, m_mustCast, BL, m_value, writeZeros);
// apply post operation (like "/ n2")
ApplyPostOp(S, cgd, BL, valueStr);
SB.AppendLine(CodeUtil.GenerateAssignmentCode(S, accessStr, valueStr, m_nbTabs, writeZeros));
}
else if (m_type is G25.FloatType)
{
// temp hack to override float type.
G25.FloatType FT = this.m_floatType; // m_type as G25.FloatType;
AppendTabs(SB);
if (m_declareVariable)
{ // also declare the variable right here?
// output "/t type "
SB.Append(FT.type + " ");
}
// output name = ....;
RefGA.BasisBlade[] BL = new RefGA.BasisBlade[1] {
RefGA.BasisBlade.ONE
};
String[] accessStr = new String[1] {
m_name
};
bool writeZeros = true;
String[] valueStr = CodeUtil.GetAssignmentStrings(S, FT, m_mustCast, BL, m_value, writeZeros);
// apply post operation (like "/ n2")
ApplyPostOp(S, cgd, BL, valueStr);
SB.AppendLine(CodeUtil.GenerateAssignmentCode(S, accessStr, valueStr, 0, writeZeros));
}
else
{
SB.AppendLine("/* to do: implement " + GetType().ToString() + " for type " + m_type.GetType().ToString() + " */");
}
}
} // end of WriteLargestCoordinateFunctions()
/// <summary>
/// Writes getters and setters for the SMV coordinates..
/// </summary>
/// <param name="SB">Where the code goes.</param>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Not used yet.</param>
/// <param name="FT">Float point type of 'SMV'.</param>
/// <param name="smv">The specialized multivector for which the struct should be written.</param>
public static void WriteGetSetCoord(StringBuilder SB, Specification S, G25.CG.Shared.CGdata cgd, FloatType FT, G25.SMV smv)
{
int nbTabs = 1;
string className = FT.GetMangledName(S, smv.Name);
// for variable coordinates:
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
{
RefGA.BasisBlade B = smv.NonConstBasisBlade(i);
string name = smv.NonConstBasisBlade(i).ToLangString(S.m_basisVectorNames);
string accessName = G25.CG.Shared.SmvUtil.GetCoordAccessString(S, smv, i);
// get
string getComment = "Returns the " + B.ToString(S.m_basisVectorNames) + " coordinate.";
new G25.CG.Shared.Comment(getComment).Write(SB, S, nbTabs);
SB.AppendLine("\t" + Keywords.PublicAccessModifier(S) + " " + FT.type + " " + G25.CG.Shared.Main.GETTER_PREFIX + name + "() { return " + accessName + ";}");
// set
string setComment = "Sets the " + B.ToString(S.m_basisVectorNames) + " coordinate.";
new G25.CG.Shared.Comment(setComment).Write(SB, S, nbTabs);
SB.AppendLine("\t" + Keywords.PublicAccessModifier(S) + " void " + G25.CG.Shared.Main.SETTER_PREFIX + name + "(" + FT.type + " " + name + ") { " + accessName + " = " + name + ";}");
}
// for constant coordinates:
for (int i = 0; i < smv.NbConstBasisBlade; i++)
{
RefGA.BasisBlade B = smv.ConstBasisBlade(i);
// get
string getComment = "Returns the " + B.ToString(S.m_basisVectorNames) + " coordinate.";
new G25.CG.Shared.Comment(getComment).Write(SB, S, nbTabs);
SB.AppendLine("\t" + Keywords.PublicAccessModifier(S) + " " + FT.type + " " + G25.CG.Shared.Main.GETTER_PREFIX + B.ToLangString(S.m_basisVectorNames) + "() { return " + FT.DoubleToString(S, smv.ConstBasisBladeValue(i)) + ";}");
}
// write a getter for the scalar which returns 0 if no scalar coordinate is present
if (smv.GetElementIdx(RefGA.BasisBlade.ONE) < 0)
{
RefGA.BasisBlade B = RefGA.BasisBlade.ONE;
string getComment = "Returns the scalar coordinate (which is always 0).";
new G25.CG.Shared.Comment(getComment).Write(SB, S, nbTabs);
SB.AppendLine("\t" + Keywords.PublicAccessModifier(S) + " " + FT.type + " " + G25.CG.Shared.Main.GETTER_PREFIX + B.ToLangString(S.m_basisVectorNames) + "() { return " + FT.DoubleToString(S, 0.0) + ";}");
}
// getter for the coordinates (stored in array)
if ((S.m_coordStorage == COORD_STORAGE.ARRAY) && (smv.NbNonConstBasisBlade > 0))
{
string constantName = G25.CG.Shared.SmvUtil.GetCoordinateOrderConstant(S, smv);
string COORD_ORDER = "coordOrder";
new G25.CG.Shared.Comment("Returns array of coordinates.").
SetParamComment(COORD_ORDER, "pass the value '" + className + "." + constantName + "'").
Write(SB, S, nbTabs);
SB.AppendLine("\t" + Keywords.PublicAccessModifier(S) + " " + FT.type + "[] c(" + G25.CG.Shared.SmvUtil.COORDINATE_ORDER_ENUM + " " + COORD_ORDER + ") { return m_c;}");
}
}
} // end of WriteSet()
/// <summary>
/// Writes a function to set an SMV struct to an array of specified coordinates, for all floating point types.
/// </summary>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteSetArray(Specification S, G25.CG.Shared.CGdata cgd)
{
StringBuilder defSB = (S.m_inlineSet) ? cgd.m_inlineDefSB : cgd.m_defSB;
defSB.AppendLine("");
foreach (G25.FloatType FT in S.m_floatTypes)
{
foreach (G25.SMV smv in S.m_SMV)
{
if (smv.NbNonConstBasisBlade == 0)
{
continue;
}
string className = FT.GetMangledName(S, smv.Name);
string funcName = className + "::set";
bool mustCast = false;
string[] argTypename = new string[2] {
G25.CG.Shared.SmvUtil.COORDINATE_ORDER_ENUM, FT.type
};
string[] argName = new string[2] {
"co", "A"
};
System.Collections.ArrayList L = new System.Collections.ArrayList();
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
{
RefGA.BasisBlade B = smv.NonConstBasisBlade(i);
String coordStr = argName[1] + "[" + i + "]";
L.Add(new RefGA.BasisBlade(B.bitmap, B.scale, coordStr));
}
RefGA.Multivector mvValue = new RefGA.Multivector(L);
G25.fgs F = new G25.fgs(funcName, funcName, "", argTypename, argName, new String[] { FT.type }, null, null, null); // null, null, null = metricName, comment, options
F.InitArgumentPtrFromTypeNames(S);
F.SetArgumentPtr(1, true); // second argument is a pointer to array
bool computeMultivectorValue = false;
int NB_ARGS = 2; // enum + one array of coordinates
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, NB_ARGS, FT, null, computeMultivectorValue);
string dstName = G25.CG.Shared.SmvUtil.THIS;
bool dstPtr = true;
bool staticFunc = false;
G25.CG.Shared.Functions.WriteAssignmentFunction(S, cgd,
S.m_inlineSet, staticFunc, "void", null, funcName, null, FAI, FT, mustCast, smv, dstName, dstPtr, mvValue);
}
}
} // end of WriteSetArray()
/// <summary>
/// Writes a function to set an SMV struct to specified coordinates, for all floating point types.
/// </summary>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteSetCoords(Specification S, G25.CG.Shared.CGdata cgd)
{
StringBuilder defSB = (S.m_inlineSet) ? cgd.m_inlineDefSB : cgd.m_defSB;
defSB.AppendLine("");
foreach (G25.FloatType FT in S.m_floatTypes)
{
foreach (G25.SMV smv in S.m_SMV)
{
if (smv.NbNonConstBasisBlade == 0)
{
continue;
}
string className = FT.GetMangledName(S, smv.Name);
string funcName = className + "::set";
bool mustCast = false;
System.Collections.ArrayList L = new System.Collections.ArrayList();
int NB_ARGS = 1 + smv.NbNonConstBasisBlade;
string[] argTypename = new String[NB_ARGS];
string[] argName = new String[NB_ARGS];
argTypename[0] = G25.CG.Shared.SmvUtil.COORDINATE_ORDER_ENUM;
argName[0] = "co";
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
{
RefGA.BasisBlade B = smv.NonConstBasisBlade(i);
argTypename[i + 1] = FT.type;
string coordStr = "_" + smv.GetCoordLangID(i, S, COORD_STORAGE.VARIABLES);
argName[i + 1] = coordStr;
L.Add(new RefGA.BasisBlade(B.bitmap, B.scale, coordStr));
}
RefGA.Multivector mvValue = new RefGA.Multivector(L);
G25.fgs F = new G25.fgs(funcName, funcName, "", argTypename, argName, new String[] { FT.type }, null, null, null); // null, null, null = metricName, comment, options
F.InitArgumentPtrFromTypeNames(S);
bool computeMultivectorValue = false;
//G25.CG.Shared.FuncArgInfo returnArgument = new G25.CG.Shared.FuncArgInfo(S, F, -1, FT, smv.Name, computeMultivectorValue);
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, NB_ARGS, FT, null, computeMultivectorValue);
string dstName = G25.CG.Shared.SmvUtil.THIS;
bool dstPtr = true;
bool staticFunc = false;
G25.CG.Shared.Functions.WriteAssignmentFunction(S, cgd,
S.m_inlineSet, staticFunc, "void", null, funcName, null, FAI, FT, mustCast, smv, dstName, dstPtr, mvValue);
}
}
} // end of WriteSet()
/// <returns>'L' convert to a double array</returns>
public static RefGA.BasisBlade[][] ListToDoubleArray(List <List <G25.rsbbp.BasisBlade> > L)
{
RefGA.BasisBlade[][] A = new RefGA.BasisBlade[L.Count][];
for (int i = 0; i < L.Count; i++)
{
A[i] = new RefGA.BasisBlade[L[i].Count];
for (int j = 0; j < L[i].Count; j++)
{
A[i][j] = L[i][j].GetBasisBlade;
}
}
return(A);
}
} // end of WriteLargestCoordinateFunctions()
/// <summary>
/// Writes code to extract the scalar part of an SMV via a non-member function.
/// </summary>
/// <param name="S"></param>
/// <param name="cgd">Results go here. Also intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteExtractScalarPart(Specification S, G25.CG.Shared.CGdata cgd)
{
G25.GMV gmv = S.m_GMV;
StringBuilder declSB = cgd.m_declSB;
StringBuilder defSB = (S.m_inlineFunctions) ? cgd.m_inlineDefSB : cgd.m_defSB;
declSB.AppendLine("");
defSB.AppendLine("");
const string gmvName = "x";
RefGA.BasisBlade scalarBlade = RefGA.BasisBlade.ONE;
string inlineStr = G25.CG.Shared.Util.GetInlineString(S, S.m_inlineFunctions, " ");
foreach (G25.FloatType FT in S.m_floatTypes)
{
string className = FT.GetMangledName(S, gmv.Name);
string funcName = "_" + FT.type;
string altFuncName = "_Float";
string comment = "/// Returns scalar part of " + className;
declSB.AppendLine(comment);
string funcDecl = FT.type + " " + funcName + "(const " + className + " &" + gmvName + ")";
declSB.Append(funcDecl);
declSB.AppendLine(";");
declSB.AppendLine(comment);
string altFuncDecl = FT.type + " " + altFuncName + "(const " + className + " &" + gmvName + ")";
declSB.Append(G25.CG.Shared.Util.GetInlineString(S, true, " ") + altFuncDecl + " {return " + funcName + "(" + gmvName + "); }");
declSB.AppendLine(";");
defSB.Append(inlineStr + funcDecl);
{
defSB.AppendLine(" {");
int elementIdx = gmv.GetElementIdx(scalarBlade);
double multiplier = 1.0 / gmv.BasisBlade(0, elementIdx).scale;
string multiplerString = (multiplier != 1.0) ? (FT.DoubleToString(S, multiplier) + " * ") : "";
// this line assumes that the scalar is the first element of the first group (which is a requirement).
defSB.AppendLine("\treturn ((x.gu() & 1) != 0) ? " + multiplerString + "x.getC()[0] : " + FT.DoubleToString(S, 0.0) + ";");
defSB.AppendLine("}");
}
} // end of loop over all float types
} // end of WriteExtractScalarPart()
} // end of WriteSetZero()
/// <summary>
/// Writes a function to set an SMV struct to a scalar coordinate, for all floating point types which have a non-constant scalar coordinate.
/// </summary>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteSetScalar(Specification S, G25.CG.Shared.CGdata cgd)
{
StringBuilder declSB = cgd.m_declSB;
StringBuilder defSB = (S.m_inlineSet) ? cgd.m_inlineDefSB : cgd.m_defSB;
declSB.AppendLine("");
defSB.AppendLine("");
foreach (G25.FloatType FT in S.m_floatTypes)
{
foreach (G25.SMV smv in S.m_SMV)
{
// if (smv.NbNonConstBasisBlade == 0) continue;
if (smv.GetElementIdx(RefGA.BasisBlade.ONE) < 0)
{
continue; // if no scalar coordinate, continue
}
string typeName = FT.GetMangledName(S, smv.Name);
string funcName = typeName + "_setScalar";
bool mustCast = false;
System.Collections.ArrayList L = new System.Collections.ArrayList();
const int NB_COORDS = 1;
string[] argTypename = new string[NB_COORDS];
string[] argName = new string[NB_COORDS];
{
RefGA.BasisBlade B = RefGA.BasisBlade.ONE;
argTypename[0] = FT.type;
argName[0] = "scalarVal";
L.Add(new RefGA.BasisBlade(B.bitmap, B.scale, argName[0]));
}
RefGA.Multivector mvValue = new RefGA.Multivector(L);
G25.fgs F = new G25.fgs(funcName, funcName, "", argTypename, argName, new String[] { FT.type }, null, null, null); // null, null = metricName, comment, options
F.InitArgumentPtrFromTypeNames(S);
bool computeMultivectorValue = false;
G25.CG.Shared.FuncArgInfo returnArgument = new G25.CG.Shared.FuncArgInfo(S, F, -1, FT, smv.Name, computeMultivectorValue);
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, NB_COORDS, FT, null, computeMultivectorValue);
declSB.AppendLine("/** Sets " + typeName + " to a scalar value */");
bool staticFunc = false;
G25.CG.Shared.Functions.WriteAssignmentFunction(S, cgd,
S.m_inlineSet, staticFunc, "void", null, funcName, returnArgument, FAI, FT, mustCast, smv, returnArgument.Name, returnArgument.Pointer, mvValue);
}
}
}
} // end of WriteLargestCoordinateFunctions()
/// <summary>
/// Writes code to extract the scalar part of an SMV
/// </summary>
/// <param name="S"></param>
/// <param name="cgd">Results go here. Also intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteExtractScalarPart(Specification S, G25.CG.Shared.CGdata cgd)
{
StringBuilder declSB = cgd.m_declSB;
StringBuilder defSB = (S.m_inlineFunctions) ? cgd.m_inlineDefSB : cgd.m_defSB;
declSB.AppendLine("");
defSB.AppendLine("");
const String smvName = "x";
const bool ptr = true;
RefGA.BasisBlade scalarBlade = new RefGA.BasisBlade(1.0);
foreach (G25.FloatType FT in S.m_floatTypes)
{
foreach (G25.SMV smv in S.m_SMV)
{
String[] AS = G25.CG.Shared.CodeUtil.GetAccessStr(S, smv, smvName, ptr);
String typeName = FT.GetMangledName(S, smv.Name);
String funcName = typeName + "_" + FT.type;
declSB.AppendLine("/** Returns scalar part of " + typeName + " */");
String funcDecl = FT.type + " " + funcName + "(const " + typeName + " *" + smvName + ")";
declSB.Append(funcDecl);
declSB.AppendLine(";");
defSB.Append(funcDecl);
{
defSB.AppendLine(" {");
int scalarCoordIdx = smv.GetElementIdx(scalarBlade);
if (scalarCoordIdx >= 0)
{
double multiplier = 1.0 / smv.BasisBlade(0, scalarCoordIdx).scale;
string multiplerString = (multiplier != 1.0) ? (FT.DoubleToString(S, multiplier) + " * "): "";
defSB.AppendLine("\treturn " + multiplerString + AS[scalarCoordIdx] + ";");
}
else
{
defSB.AppendLine("\treturn " + FT.DoubleToString(S, 0.0) + ";");
}
defSB.AppendLine("}");
}
} // end of loop over all smvs
} // end of loop over all float types
} // end of WriteExtractScalarPart()
public static void GenerateBasisElementsArray(StringBuilder SB, Specification S, G25.CG.Shared.CGdata cgd)
{
string accessModifierArr = Keywords.ConstArrayAccessModifier(S);
G25.GMV gmv = S.m_GMV;
// basis vectors in basis elements
new G25.CG.Shared.Comment("This array of integers contains the order of basis elements in the general multivector.\n" +
"Use it to answer: 'what basis vectors are in the basis element at position [x]?").Write(SB, S, 1);
SB.Append("\tpublic " + accessModifierArr + " int[][] BasisElements = ");
if (S.m_gmvCodeGeneration == GMV_CODE.EXPAND)
{
SB.AppendLine("new int[][] {");
{
bool comma = false;
for (int i = 0; i < gmv.NbGroups; i++)
{
for (int j = 0; j < gmv.Group(i).Length; j++)
{
if (comma)
{
SB.Append(",\n");
}
RefGA.BasisBlade B = gmv.Group(i)[j];
SB.Append("\t\tnew int[] {");
for (int k = 0; k < S.m_dimension; k++)
{
if ((B.bitmap & (1 << k)) != 0)
{
SB.Append(k + ", ");
}
}
SB.Append("-1}");
comma = true;
}
}
}
SB.AppendLine("");
SB.AppendLine("\t};");
}
else
{
SB.AppendLine(G25.CG.CSJ.Util.GetFunctionName(S, "initBasisElementsArray") + "();");
SB.AppendLine();
cgd.m_cog.EmitTemplate(SB, "initBasisElementsArray", "S=", S);
}
}
/// <summary>
/// 'Plans' how to initialize an outermorphism from vector images.
///
/// The plan is returned in the form of nested array <c>uint[grade][domain][plan steps]</c>.
/// The <c>plan steps</c> are the bitmaps of the basis blades that should be wedged together
/// to form the basis blade for <c>grade,domain</c>.
/// </summary>
/// <param name="S"></param>
/// <param name="om"></param>
/// <returns>plan for initialization of <c>om</c> from vector images.</returns>
public static uint[][][] ComputeOmInitFromVectorsPlan(Specification S, OM om)
{
// keep track of which basis blades are available (domain vectors are the input, so they are always available)
bool[] availableBasisBlades = new bool[1 << S.m_dimension];
for (int i = 0; i < om.DomainVectors.Length; i++)
{
availableBasisBlades[om.DomainVectors[i].bitmap] = true;
}
// for each grade, figure out how to construct the basis blades of that grade from basis blades which are already available
uint[][][] result = new uint[S.m_dimension + 1][][];
for (int g = 1; g <= S.m_dimension; g++)
{
result[g] = new uint[om.DomainForGrade(g).Length][];
for (int d = 0; d < om.DomainForGrade(g).Length; d++)
{
RefGA.BasisBlade D = om.DomainForGrade(g)[d];
// find the largest part of D which is already known
List <uint> plan = new List <uint>();
uint bitmap = D.bitmap;
while (bitmap != 0)
{
// find first bit, plan it, see if the rest is available
uint lowestBitIdx = (uint)RefGA.Bits.LowestOneBit(bitmap);
uint lowestBitmap = (uint)(1 << (int)lowestBitIdx);
plan.Add(lowestBitmap);
bitmap ^= lowestBitmap;
if (availableBasisBlades[bitmap]) // if remaining bitmap has already been computed, use that
{
plan.Add(bitmap);
bitmap ^= bitmap;
}
}
// plan for this basis blade is done:
result[g][d] = plan.ToArray();
availableBasisBlades[D.bitmap] = true;
}
}
return(result);
} // end of ComputeOmInitFromVectorsPlan()
/// <returns>a list of basis blades in canonical order, sorted by grade.
/// Each entry in the outer list contains the basis blades for that grade.</returns>
public List <List <G25.rsbbp.BasisBlade> > GetDefaultBasisBlades()
{
// allocate list for each grade
List <List <G25.rsbbp.BasisBlade> > L = new List <List <G25.rsbbp.BasisBlade> >();
for (int i = 0; i < m_spec.m_dimension + 1; i++)
{
L.Add(new List <G25.rsbbp.BasisBlade>());
}
// enumerate over all basis blades, add them to respective lists
for (uint b = 0; b < (1 << m_spec.m_dimension); b++)
{
RefGA.BasisBlade B = new RefGA.BasisBlade(b);
L[B.Grade()].Add(new G25.rsbbp.BasisBlade(B));
}
return(L);
}
/// <summary>
/// Generates code to assign <c>value</c> to a variable whose coordinate order is specified by <c>BL</c>.
///
/// For example, <c>BL</c> could be <c>[e1, e2, e3]</c> and the multivector value <c>[e1 - 2e3]</c>.
/// Then the returned array would be <c>["1", "0", "-2"]</c>.
///
/// Parts of <c>value</c> that cannot be assigned to <c>BL</c> are silently ignored.
///
/// Possibly, at some point we would like to generate some kind of warning?
/// </summary>
/// <param name="S">Specification of algebra (not used yet).</param>
/// <param name="FT">Floating point type of assigned variable (used for casting strings).</param>
/// <param name="mustCast">Set to true if a cast to 'FT' must be performed.</param>
/// <param name="BL">Basis blades of assigned variable.</param>
/// <param name="value">Multivector value to assign to the list of basis blades.
/// Must not contain basis blades inside the symbolic scalars of the RefGA.BasisBlades.</param>
/// <param name="writeZeros">When true, <c>"0"</c> will be returned when no value should be assigned
/// to some coordinate. <c>null</c> otherwise.</param>
/// <returns>An array of strings which tell you what to assign to each coordinate.</returns>
public static String[] GetAssignmentStrings(Specification S, FloatType FT, bool mustCast, RefGA.BasisBlade[] BL,
RefGA.Multivector value, bool writeZeros)
{
String[] assignedStr = new String[BL.Length];
int idx = 0;
// for each non-const coord, find out what value is (loop through all entries in value)
foreach (RefGA.BasisBlade B in BL)
{
// find same basisblade in 'value'
foreach (RefGA.BasisBlade C in value.BasisBlades)
{
if (C.bitmap == B.bitmap) // match found: get assignment string
{
// compute D = inverse(B) . C;
RefGA.BasisBlade Bi = (new RefGA.BasisBlade(B.bitmap, 1.0 / B.scale)).Reverse();
RefGA.BasisBlade D = RefGA.BasisBlade.scp(Bi, C);
if (mustCast)
{
assignedStr[idx] = FT.castStr + "(" + CodeUtil.ScalarToLangString(S, FT, D) + ")";
}
else
{
assignedStr[idx] = CodeUtil.ScalarToLangString(S, FT, D);
}
break;
}
}
if (writeZeros && (assignedStr[idx] == null)) // has an assignment string been set?
{
// no assignment: simply assign "0"
assignedStr[idx] = FT.DoubleToString(S, 0.0);
}
idx++;
}
return(assignedStr);
} // end of GetAssignmentStrings()
/// <returns>'L' convert to a single array</returns>
public static RefGA.BasisBlade[] ListToSingleArray(List <List <G25.rsbbp.BasisBlade> > L)
{
// count total number of basis blades
int cnt = 0;
for (int i = 0; i < L.Count; i++)
{
cnt += L[i].Count;
}
// allocate, copy basis blades
RefGA.BasisBlade[] A = new RefGA.BasisBlade[cnt];
int idx = 0;
for (int i = 0; i < L.Count; i++)
{
for (int j = 0; j < L[i].Count; j++)
{
A[idx++] = L[i][j].GetBasisBlade;
}
}
return(A);
}
/// <summary>
/// Takes a general multivector specification (G25.GMV) and converts it into a one symbolic multivector per group/grade part.
///
/// The symbolic weights of the multivector are the coordinates of the GMV, labelled according to 'gmvName'.
/// Currently, the indices start at zero for each group.
/// </summary>
/// <param name="S">Specification of the algebra. Used for the access convention (. or ->) and for how to name the coordinates ([0] or e1, e2, e3).</param>
/// <param name="gmv">The specification of the general multivector.</param>
/// <param name="gmvName">Name the variable should have.</param>
/// <param name="ptr">Is 'gmvName' a pointer? (not used currently)</param>
/// <param name="groupIdx">Index of group/grade to convert (use -1 for all groups)</param>
/// <returns></returns>
public static RefGA.Multivector[] GMVtoSymbolicMultivector(Specification S, G25.GMV gmv, String gmvName, bool ptr, int groupIdx)
{
RefGA.Multivector[] R = new RefGA.Multivector[gmv.NbGroups];
//String accessStr = (ptr) ? "->" : ".";
for (int g = 0; g < gmv.NbGroups; g++) {
if ((groupIdx >= 0) && (g != groupIdx)) continue; // only one group requested?
RefGA.BasisBlade[] B = gmv.Group(g);
RefGA.BasisBlade[] L = new RefGA.BasisBlade[B.Length];
for (int i = 0; i < B.Length; i++)
{
RefGA.BasisBlade b = B[i];
String fullCoordName = gmvName + "[" + i + "]";
// merge
L[i] = new RefGA.BasisBlade(b.bitmap, b.scale, fullCoordName);
}
R[g] = new RefGA.Multivector(L);
}
return R;
}
/// <summary>
/// Writes getters and setters for the SMV coordinates..
/// </summary>
/// <param name="SB">Where the code goes.</param>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Not used yet.</param>
/// <param name="FT">Float point type of 'SMV'.</param>
/// <param name="smv">The specialized multivector for which the struct should be written.</param>
public static void WriteGetSetCoord(StringBuilder SB, Specification S, G25.CG.Shared.CGdata cgd, FloatType FT, G25.SMV smv)
{
// write variable coordinates
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
{
string name = smv.NonConstBasisBlade(i).ToLangString(S.m_basisVectorNames);
string accessName = G25.CG.Shared.SmvUtil.GetCoordAccessString(S, smv, i);
SB.AppendLine("\t/// Returns the " + smv.NonConstBasisBlade(i).ToString(S.m_basisVectorNames) + " coordinate.");
SB.AppendLine("\tinline " + FT.type + " " + MainGenerator.GETTER_PREFIX + name + "() const { return " + accessName + ";}");
SB.AppendLine("\t/// Sets the " + smv.NonConstBasisBlade(i).ToString(S.m_basisVectorNames) + " coordinate.");
SB.AppendLine("\tinline void " + MainGenerator.SETTER_PREFIX + name + "(" + FT.type + " " + name + ") { " + accessName + " = " + name + ";}");
}
// write constant coordinates
for (int i = 0; i < smv.NbConstBasisBlade; i++)
{
RefGA.BasisBlade B = smv.ConstBasisBlade(i);
SB.AppendLine("\t/// Returns the " + B.ToString(S.m_basisVectorNames) + " coordinate.");
SB.AppendLine("\tinline " + FT.type + " " + MainGenerator.GETTER_PREFIX + B.ToLangString(S.m_basisVectorNames) + "() const { return " + FT.DoubleToString(S, smv.ConstBasisBladeValue(i)) + ";}");
}
// write a getter for the scalar which returns 0 if no scalar coordinate is present
if (smv.GetElementIdx(RefGA.BasisBlade.ONE) < 0)
{
RefGA.BasisBlade B = RefGA.BasisBlade.ONE;
SB.AppendLine("\t/// Returns the scalar coordinate (which is always 0).");
SB.AppendLine("\tinline " + FT.type + " " + MainGenerator.GETTER_PREFIX + B.ToLangString(S.m_basisVectorNames) + "() const { return " + FT.DoubleToString(S, 0.0) + ";}");
}
// getter for the coordinates (stored in array)
if ((S.m_coordStorage == COORD_STORAGE.ARRAY) && (smv.NbNonConstBasisBlade > 0))
{
SB.AppendLine("\t/// Returns array of coordinates.");
SB.AppendLine("\tinline const " + FT.type + " *getC(" + G25.CG.Shared.SmvUtil.COORDINATE_ORDER_ENUM + ") const { return m_c;}");
}
}
} // end of WriteSetZero()
/// <summary>
/// Writes a function to set an SMV struct to a scalar coordinate, for all floating point types which have a non-constant scalar coordinate.
/// </summary>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteSetScalar(Specification S, G25.CG.Shared.CGdata cgd, G25.FloatType FT, G25.SMV smv)
{
//if (smv.GetElementIdx(RefGA.BasisBlade.ONE) < 0) return; // if no scalar coordinate, continue
cgd.m_defSB.AppendLine("");
//string className = FT.GetMangledName(S, smv.Name);
string funcName = GMV.GetSetFuncName(S);
bool mustCast = false;
System.Collections.ArrayList L = new System.Collections.ArrayList();
const int NB_COORDS = 1;
string[] argTypename = new String[NB_COORDS];
string[] argName = new String[NB_COORDS];
{
RefGA.BasisBlade B = RefGA.BasisBlade.ONE;
argTypename[0] = FT.type;
argName[0] = "scalarVal";
L.Add(new RefGA.BasisBlade(B.bitmap, B.scale, argName[0]));
}
RefGA.Multivector mvValue = new RefGA.Multivector(L);
G25.fgs F = new G25.fgs(funcName, funcName, "", argTypename, argName, new String[] { FT.type }, null, null, null); // null, null = metricName, comment, options
F.InitArgumentPtrFromTypeNames(S);
bool computeMultivectorValue = false;
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, NB_COORDS, FT, null, computeMultivectorValue);
string dstName = G25.CG.Shared.SmvUtil.THIS;
bool dstPtr = false;
bool staticFunc = false;
G25.CG.Shared.Functions.WriteAssignmentFunction(S, cgd,
S.m_inlineSet, staticFunc, "void", null, funcName, null, FAI, FT, mustCast, smv, dstName, dstPtr, mvValue);
}
/// <summary>
/// Takes a specialized multivector specification (G25.SMV) and converts it into a symbolic multivector.
/// The symbolic weights of the multivector are the coordinates of the SMV, labelled according to 'smvName'.
///
/// An example is <c>A.c[0]*e1 + A.c[1]*e2 + A.c[2]*e3</c>.
/// </summary>
/// <param name="S">Specification of the algebra. Used for the access convention (. or ->) and for how to name the coordinates ([0] or e1, e2, e3).</param>
/// <param name="smv">The specification of the specialized multivector.</param>
/// <param name="smvName">Name the variable should have.</param>
/// <param name="ptr">Is 'smvName' a pointer? This changes the way the variable is accessed.</param>
/// <returns></returns>
public static RefGA.Multivector SMVtoSymbolicMultivector(Specification S, G25.SMV smv, string smvName, bool ptr)
{
int idx = 0; // index into 'L'
RefGA.BasisBlade[] L = new RefGA.BasisBlade[smv.NbConstBasisBlade + smv.NbNonConstBasisBlade];
string[] AL = CodeUtil.GetAccessStr(S, smv, smvName, ptr);
// get non-const coords
for (int i = 0; i < smv.NbNonConstBasisBlade; i++)
{
// get basis blade of coordinate
RefGA.BasisBlade B = smv.NonConstBasisBlade(i);
// merge
L[idx++] = new RefGA.BasisBlade(B.bitmap, B.scale, AL[i]);
}
// get const coords
for (int i = 0; i < smv.NbConstBasisBlade; i++)
{
// get value of coordinate
double value = smv.ConstBasisBladeValue(i);
// get basis blade of coordinate
RefGA.BasisBlade B = smv.ConstBasisBlade(i);
// merge
L[idx++] = new RefGA.BasisBlade(B.bitmap, B.scale * value);
}
return new RefGA.Multivector(L);
}
/// <returns>'L' convert to a single array</returns>
public static RefGA.BasisBlade[] ListToSingleArray(List<List<G25.rsbbp.BasisBlade>> L)
{
// count total number of basis blades
int cnt = 0;
for (int i = 0; i < L.Count; i++) cnt += L[i].Count;
// allocate, copy basis blades
RefGA.BasisBlade[] A = new RefGA.BasisBlade[cnt];
int idx = 0;
for (int i = 0; i < L.Count; i++) {
for (int j = 0; j < L[i].Count; j++)
A[idx++] = L[i][j].GetBasisBlade;
}
return A;
}
/// <summary>
/// Writes the 'explicit' declaration/definitions of 'F' to StringBuffer 'SB', taking into account parameters specified in specification 'S'.
///
/// This function is called by the non-explicit version of the function.
/// </summary>
public void WriteExFunction(FloatType FT, string exFuncName)
{
G25.SMV smv = m_specification.GetSMV(m_SMVname);
string randFuncCall = FT.DoubleToString(m_specification, -1.0) + " + " + FT.DoubleToString(m_specification, 2.0) + " * " + m_randomScalarFunc[FT.type] + "()";
// construct a explicit FGS
string[] exArgumentTypeNames = new string[] { FT.type, FT.type, FT.type };
string[] exVariableNames = { m_fgs.ArgumentVariableNames[0], MINIMUM_NORM, LARGEST_COORDINATE };
fgs exFgs = new fgs(m_fgs.Name, m_fgs.OutputName, m_fgs.ReturnTypeName, exArgumentTypeNames, exVariableNames, m_fgs.FloatNames, m_fgs.MetricName, m_fgs.Comment, m_fgs.Options);
exFgs.InitArgumentPtrFromTypeNames(m_specification);
bool computeMultivectorValue = false;
int nbArgs = 3;
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(m_specification, exFgs, nbArgs, FT, FT.type, computeMultivectorValue);
// because of lack of overloading, function names include names of argument types
//G25.fgs CF = G25.CG.Shared.Util.AppendTypenameToFuncName(m_specification, FT, exFgs, FAI);
G25.fgs CF = new G25.fgs(exFgs, exFuncName);
//string exFuncName = funcName;
// setup code to recursively call exFuncName
string exFuncCall = "";
{
StringBuilder exFuncCallSB = new StringBuilder();
if (!m_specification.OutputC())
exFuncCallSB.Append("return ");
exFuncCallSB.Append(exFuncName);
exFuncCallSB.Append("(");
if (m_specification.OutputC())
{
exFuncCallSB.Append(fgs.RETURN_ARG_NAME);
exFuncCallSB.Append(", ");
}
for (int i = 0; i < exVariableNames.Length; i++)
{
if (i > 0) exFuncCallSB.Append(", ");
exFuncCallSB.Append(exVariableNames[i]);
}
exFuncCallSB.AppendLine(");");
if (m_specification.OutputC())
{
exFuncCallSB.AppendLine("return;");
}
exFuncCall = exFuncCallSB.ToString();
}
// generate a random SMV:
RefGA.Multivector randomSMV = null;
// get highest grade and bitmap of
int hg = smv.HighestGrade(); // what is the highest non-zero grade of the type?
uint bvBitmap = smv.BasisVectorBitmap(); // which basis vectors are used in the type?
// setup random value to be returned
if (InitWithRandomCoordinates(m_specification, smv))
{
// set all coordinates to random values
randomSMV = RefGA.Multivector.ZERO;
for (int b = 0; b < smv.NbNonConstBasisBlade; b++)
{
randomSMV = RefGA.Multivector.Add(randomSMV,
RefGA.Multivector.gp(new RefGA.Multivector(smv.NonConstBasisBlade(b)),
new RefGA.Multivector("r" + smv.NonConstBasisBlade(b).ToLangString(m_specification.m_basisVectorNames))));
}
}
else
{
// set to geometric product of random vectors
randomSMV = RefGA.Multivector.ONE;
RefGA.Multivector randomVector;
RefGA.BasisBlade[] B = new RefGA.BasisBlade[(int)RefGA.Bits.BitCount(bvBitmap)];
for (int g = 0; g < hg; g++)
{
int cnt = 0;
for (int v = 0; v < m_specification.m_dimension; v++)
{
if ((bvBitmap & (uint)(1 << v)) != 0)
{
B[cnt] = new RefGA.BasisBlade((uint)(1 << v), 1.0, "r" + g + "_" + m_specification.m_basisVectorNames[v]);
cnt++;
}
}
randomVector = new RefGA.Multivector(B);
randomSMV = RefGA.Multivector.gp(randomSMV, randomVector, m_G25M.m_metric);
}
// round value if required by metric
if (m_G25M.m_round) randomSMV = randomSMV.Round(1e-14);
}
// setup instructions
System.Collections.Generic.List<G25.CG.Shared.Instruction> I = new System.Collections.Generic.List<G25.CG.Shared.Instruction>();
{
int nbTabs = 1;
if (!smv.IsConstant())
{
string smvTypeName = FT.GetMangledName(m_specification, m_SMVname);
// SMV tmp;
// double n, mul, lc;
if (m_specification.OutputCppOrC())
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, smvTypeName + " tmp;"));
else I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, smvTypeName + " tmp = new " + smvTypeName + "();"));
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, FT.type + " n, mul, lc;"));
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, CodeUtil.GetBoolType(m_specification) + " nullBlade;"));
// double rCoord = randomValue(), ....;
StringBuilder randSB = new StringBuilder();
randSB.Append(FT.type);
randSB.Append(" ");
if (InitWithRandomCoordinates(m_specification, smv))
{ // random coordinates
for (int b = 0; b < smv.NbNonConstBasisBlade; b++)
{
if (b > 0) randSB.Append(", ");
randSB.Append("r" + smv.NonConstBasisBlade(b).ToLangString(m_specification.m_basisVectorNames));
randSB.Append(" = ");
randSB.Append(randFuncCall);
}
}
else
{ // random vectors
bool first = true;
for (int g = 0; g < hg; g++)
{
for (int v = 0; v < m_specification.m_dimension; v++)
{
if (!first) randSB.Append(", "); first = false;
if ((g > 0) && (v == 0))
{
randSB.AppendLine(""); // newline
randSB.Append("\t\t");
}
randSB.Append("r" + g + "_" + m_specification.m_basisVectorNames[v]);
randSB.Append(" = ");
randSB.Append(randFuncCall);
}
}
}
randSB.Append(";");
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, randSB.ToString()));
// SMV tmp = random;
bool mustCast = false;
bool randomPtr = false;
bool declareRandom = false;
I.Add(new G25.CG.Shared.AssignInstruction(nbTabs, smv, FT, mustCast, randomSMV, "tmp", randomPtr, declareRandom));
// n = norm_ret_scalar(tmp);
string emp = (m_specification.OutputC()) ? "&" : "";
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, "n = " + m_normFunc[FT.type] + "(" + emp + "tmp);"));
// lc = largestCoordinate(tmp);
if (m_specification.OutputC())
{
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, "lc = " + smvTypeName + "_largestCoordinate(&tmp);"));
}
else
{
string lcStr = "largestCoordinate";
if (m_specification.OutputCSharp()) lcStr = "LargestCoordinate";
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, "lc = tmp." + lcStr + "();"));
}
// null = (n == 0) && (lc ! 0)
if ((m_smvType.MvType == SMV.MULTIVECTOR_TYPE.ROTOR) || (m_smvType.MvType == SMV.MULTIVECTOR_TYPE.VERSOR))
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, "nullBlade = " + (m_specification.OutputC() ? "0" : "false") + ";"));
else I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, "nullBlade = ((n == " + FT.DoubleToString(m_specification, 0.0) + ") && (lc != " + FT.DoubleToString(m_specification, 0.0) + "));"));
// test minimumNorm
I.Add(new CommentInstruction(nbTabs, "Recurse if generated random value has a norm below user-supplied limit, unless this is a null blade"));
I.Add(new G25.CG.Shared.IfElseInstruction(nbTabs, "(n < " + exVariableNames[1] + ") && (!nullBlade)",
new List<Instruction>() {new G25.CG.Shared.VerbatimCodeInstruction(nbTabs + 1, exFuncCall)}, // if instructions
new List<Instruction>())); // else instructions
// compute multiplier
string lcCondition = "(lc * " + CodeUtil.OpNameToLangString(m_specification, FT, "abs") + "(mul)) > largestCoordinate ";
I.Add(new CommentInstruction(nbTabs, "Compute multiplier"));
I.Add(new G25.CG.Shared.IfElseInstruction(nbTabs, "n < " + FT.DoubleToString(m_specification, 0.0001),
new List<Instruction>() { new G25.CG.Shared.VerbatimCodeInstruction(nbTabs + 1, "mul = " + FT.DoubleToString(m_specification, 1.0) + ";") }, // if instructions
new List<Instruction>() { // else instructions
new G25.CG.Shared.VerbatimCodeInstruction(nbTabs + 1, "mul = " + exFgs.ArgumentVariableNames[0] + " * (" + randFuncCall + ") / n;"),
new CommentInstruction(nbTabs+1, "Test largest coordinate"),
new G25.CG.Shared.IfElseInstruction(nbTabs+1, lcCondition,
new List<Instruction>() { new G25.CG.Shared.VerbatimCodeInstruction(nbTabs + 2, exFuncCall) }, // if instructions
new List<Instruction>())
}));
// test largest coordinate
//I.Add(new CommentInstruction(nbTabs, "Test largest coordinate"));
//I.Add(new G25.CG.Shared.IfElseInstruction(nbTabs, lcCondition,
// new List<Instruction>() { new G25.CG.Shared.VerbatimCodeInstruction(nbTabs + 1, exFuncCall) }, // if instructions
// new List<Instruction>())); // else instructions
// return tmp*mul;
I.Add(new CommentInstruction(nbTabs, "Apply multiplier, return"));
RefGA.Multivector tmpValue = G25.CG.Shared.Symbolic.SMVtoSymbolicMultivector(m_specification, smv, "tmp", false);
RefGA.Multivector returnValue = RefGA.Multivector.gp(tmpValue, new RefGA.Multivector("mul"));
I.Add(new G25.CG.Shared.ReturnInstruction(nbTabs, smv, FT, mustCast, returnValue));
} // end of '!IsConstant()'?
else
{
// the user wants a 'random' constant: simply return the constant itself.
RefGA.Multivector returnValue = G25.CG.Shared.Symbolic.SMVtoSymbolicMultivector(m_specification, smv, "tmp", false);
bool mustCast = false;
I.Add(new G25.CG.Shared.ReturnInstruction(nbTabs, smv, FT, mustCast, returnValue));
}
}
// because of lack of overloading, function names include names of argument types
//G25.fgs CF = G25.CG.Shared.Util.AppendTypenameToFuncName(m_specification, FT, exFgs, FAI);
// generate comment
Comment comment = new Comment(exFgs.AddUserComment("Returns random " + m_SMVname + " with a scale in the interval [0, scale)"));
bool staticFunc = Functions.OutputStaticFunctions(m_specification);
G25.CG.Shared.Functions.WriteFunction(m_specification, m_cgd, CF, m_specification.m_inlineFunctions, staticFunc, exFuncName, FAI, I, comment);
}
/// <summary>
/// Writes code for m_name = m_value.
/// </summary>
/// <param name="SB">Where the code goes.</param>
/// <param name="S">Specification of algebra.</param>
/// <param name="cgd">Not used yet.</param>
public override void Write(StringBuilder SB, Specification S, G25.CG.Shared.CGdata cgd)
{
if (m_type is G25.SMV)
{
G25.SMV dstSmv = m_type as G25.SMV;
if (m_declareVariable)
SB.AppendLine("/* cannot yet assign and declare SMV type at the same time */");
RefGA.BasisBlade[] BL = BasisBlade.GetNonConstBladeList(dstSmv);
string[] accessStr = CodeUtil.GetAccessStr(S, dstSmv, m_name, m_ptr);
bool writeZeros = true;
string[] valueStr = CodeUtil.GetAssignmentStrings(S, m_floatType, m_mustCast, BL, m_value, writeZeros);
// apply post operation (like "/ n2")
ApplyPostOp(S, cgd, BL, valueStr);
SB.AppendLine(CodeUtil.GenerateAssignmentCode(S, accessStr, valueStr, m_nbTabs, writeZeros));
}
else if (m_type is G25.FloatType)
{
// temp hack to override float type.
G25.FloatType FT = this.m_floatType; // m_type as G25.FloatType;
AppendTabs(SB);
if (m_declareVariable)
{ // also declare the variable right here?
// output "/t type "
SB.Append(FT.type + " ");
}
// output name = ....;
RefGA.BasisBlade[] BL = new RefGA.BasisBlade[1] { RefGA.BasisBlade.ONE };
String[] accessStr = new String[1] { m_name };
bool writeZeros = true;
String[] valueStr = CodeUtil.GetAssignmentStrings(S, FT, m_mustCast, BL, m_value, writeZeros);
// apply post operation (like "/ n2")
ApplyPostOp(S, cgd, BL, valueStr);
SB.AppendLine(CodeUtil.GenerateAssignmentCode(S, accessStr, valueStr, 0, writeZeros));
}
else
{
SB.AppendLine("/* to do: implement " + GetType().ToString() + " for type " + m_type.GetType().ToString() + " */");
}
}
public static void WriteSetMatrix(Specification S, G25.CG.Shared.CGdata cgd, FloatType FT, G25.SOM som, bool transpose)
{
int NB_ARGS = 1;
string[] argTypes = new string[NB_ARGS];
string[] argNames = new string[NB_ARGS];
argTypes[0] = FT.type;
argNames[0] = "M";
// construct image values
RefGA.Multivector[] imageValue = new RefGA.Multivector[som.DomainVectors.Length];
for (int d = 0; d < som.DomainVectors.Length; d++)
{
//imageValue[d] = RefGA.Multivector.ZERO;
RefGA.BasisBlade[] IV = new RefGA.BasisBlade[som.RangeVectors.Length];
for (int r = 0; r < som.RangeVectors.Length; r++)
{
int matrixIdx = (transpose) ? (d * som.RangeVectors.Length + r) : (r * som.DomainVectors.Length + d);
string entryName = argNames[0] + "[" + matrixIdx + "]";
IV[r] = new RefGA.BasisBlade(som.RangeVectors[r].bitmap, 1.0, entryName);
}
imageValue[d] = new RefGA.Multivector(IV);
}
string typeName = FT.GetMangledName(S, som.Name);
string funcName = GetFunctionName(S, typeName, "set", "_setMatrix");
if (transpose) funcName = funcName + "Transpose";
//argNames[0] = "*" + argNames[0]; // quick hack: add pointer to name instead of type!
G25.fgs F = new G25.fgs(funcName, funcName, "", argTypes, argNames, new String[] { FT.type }, null, null, null); // null, null = metricName, comment, options
F.InitArgumentPtrFromTypeNames(S);
if (S.OutputCppOrC())
F.m_argumentPtr[0] = true;
else F.m_argumentArr[0] = true;
bool computeMultivectorValue = false;
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, NB_ARGS, FT, S.m_GMV.Name, computeMultivectorValue);
G25.CG.Shared.FuncArgInfo returnArgument = null;
if (S.OutputC())
returnArgument = new G25.CG.Shared.FuncArgInfo(S, F, -1, FT, som.Name, computeMultivectorValue);
// setup instructions
List<G25.CG.Shared.Instruction> I = new List<G25.CG.Shared.Instruction>();
{
bool mustCast = false;
int nbTabs = 1;
string dstName = (S.OutputC()) ? G25.fgs.RETURN_ARG_NAME : SmvUtil.THIS;
bool dstPtr = S.OutputCppOrC();
bool declareDst = false;
for (int g = 1; g < som.Domain.Length; g++)
{
for (int c = 0; c < som.DomainForGrade(g).Length; c++)
{
G25.SMVOM smvOM = som.DomainSmvForGrade(g)[c];
RefGA.BasisBlade domainBlade = som.DomainForGrade(g)[c];
RefGA.Multivector value = new RefGA.Multivector(new RefGA.BasisBlade(domainBlade, 0)); // copy the scalar part, ditch the basis blade
for (uint v = 0; v < som.DomainVectors.Length; v++)
{
if ((domainBlade.bitmap & som.DomainVectors[v].bitmap) != 0)
{
value = RefGA.Multivector.op(value, imageValue[v]);
}
}
I.Add(new G25.CG.Shared.CommentInstruction(nbTabs, "Set image of " + domainBlade.ToString(S.m_basisVectorNames)));
I.Add(new G25.CG.Shared.AssignInstruction(nbTabs, smvOM, FT, mustCast, value, dstName, dstPtr, declareDst));
}
}
}
Comment comment = new Comment("Sets " + typeName + " from a " + (transpose ? "transposed " : "") + "matrix.");
bool writeDecl = (S.OutputC());
bool staticFunc = false;
G25.CG.Shared.Functions.WriteFunction(S, cgd, F, S.m_inlineSet, staticFunc, "void", funcName, returnArgument, FAI, I, comment, writeDecl);
}
private static void WriteSetCoordFunction(Specification S, G25.CG.Shared.CGdata cgd, G25.FloatType FT, StringBuilder SB,
string gmvTypeName, int groupIdx, int elementIdx, int groupSize, RefGA.BasisBlade B)
{
String bladeName = B.ToLangString(S.m_basisVectorNames);
// do we inline this func?
string inlineStr = "inline ";
string funcName = MainGenerator.SETTER_PREFIX + bladeName;
string coordName = "val";
string funcDecl = "\t" + inlineStr + "void " + funcName + "(" + FT.type + " " + coordName + ") ";
SB.AppendLine("\t/// Sets the " + bladeName + " coordinate of this " + gmvTypeName + ".");
SB.Append(funcDecl);
SB.AppendLine(" {");
SB.AppendLine("\t\treserveGroup_" + groupIdx + "();");
SB.AppendLine("\t\tm_c[" + S.m_namespace + "_mvSize[m_gu & " + ((1 << groupIdx) - 1) + "] + " + elementIdx + "] = " + coordName + ";");
SB.AppendLine("\t}");
}
/// <summary>
/// Writes an equality test function for specialized multivectors
/// </summary>
/// <param name="FT"></param>
/// <param name="FAI"></param>
/// <param name="F"></param>
/// <param name="comment"></param>
protected void WriteEqualsFunction(FloatType FT, G25.CG.Shared.FuncArgInfo[] FAI, G25.fgs F, Comment comment)
{
// setup instructions
List<G25.CG.Shared.Instruction> I = new List<G25.CG.Shared.Instruction>();
// get a basis blade list which contains all basis blades (this is used in conjunction with GetAssignmentStrings())
RefGA.BasisBlade[] BL = new RefGA.BasisBlade[1 << m_specification.m_dimension];
for (uint bitmap = 0; bitmap < (uint)BL.Length; bitmap++)
BL[bitmap] = new RefGA.BasisBlade(bitmap);
// get string to access the coordinates of each basis blade wrt to the basis
bool mustCast = false;
bool writeZeros = false;
string[] assStr1 = G25.CG.Shared.CodeUtil.GetAssignmentStrings(m_specification, FT, mustCast, BL, FAI[0].MultivectorValue[0], writeZeros);
string[] assStr2 = G25.CG.Shared.CodeUtil.GetAssignmentStrings(m_specification, FT, mustCast, BL, FAI[1].MultivectorValue[0], writeZeros);
string BOOL = CodeUtil.GetBoolType(m_specification);
string TRUE = CodeUtil.GetTrueValue(m_specification);
string FALSE = CodeUtil.GetFalseValue(m_specification);
{ // setup instructions
// get tmp storage for 'difference'
int nbTabs = 1;
bool dDeclared = false;
// for each assStr, subtract the other, see if difference is within limits
for (int i = 0; i < BL.Length; i++)
{
if ((assStr1[i] == null) && (assStr2[i] == null)) continue;
else if (assStr1[i] == null)
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs,
"if ((" + assStr2[i] + " < -" + FAI[2].Name + ") || (" + assStr2[i] + " > " + FAI[2].Name + ")) return " + FALSE + "; /* " + BL[i].ToString(m_specification.m_basisVectorNames) + " */"));
else if (assStr2[i] == null)
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs,
"if ((" + assStr1[i] + " < -" + FAI[2].Name + ") || (" + assStr1[i] + " > " + FAI[2].Name + ")) return " + FALSE + "; /* " + BL[i].ToString(m_specification.m_basisVectorNames) + " */"));
else
{
if (!dDeclared)
{
// declare a variable 'd', but only if required
I.Insert(0, new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, FT.type + " d;"));
dDeclared = true;
}
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs,
"d = " + assStr1[i] + " - " + assStr2[i] + "; " +
"if ((d < -" + FAI[2].Name + ") || (d > " + FAI[2].Name + ")) return " + FALSE + "; /* " + BL[i].ToString(m_specification.m_basisVectorNames) + " */"));
}
}
// finally, return 1 if all check were OK
I.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, "return " + TRUE + ";"));
}
// because of lack of overloading, function names include names of argument types
G25.fgs CF = G25.CG.Shared.Util.AppendTypenameToFuncName(m_specification, FT, F, FAI);
m_funcName[FT.type] = CF.OutputName;
// setup return type and argument:
string returnTypeName = BOOL;
G25.CG.Shared.FuncArgInfo returnArgument = null;
// write function
bool staticFunc = Functions.OutputStaticFunctions(m_specification);
G25.CG.Shared.Functions.WriteFunction(m_specification, m_cgd, F, m_specification.m_inlineFunctions, staticFunc, returnTypeName, CF.OutputName, returnArgument, FAI, I, comment);
}
private static void WriteGetCoordFunction(Specification S, G25.CG.Shared.CGdata cgd, G25.FloatType FT, StringBuilder SB,
string gmvTypeName, int groupIdx, int elementIdx, RefGA.BasisBlade B)
{
String bladeName = B.ToLangString(S.m_basisVectorNames);
// do we inline this func?
string inlineStr = "inline ";
string funcName = MainGenerator.GETTER_PREFIX + bladeName;
string funcDecl = "\t" + inlineStr + FT.type + " " + funcName + "() const";
SB.AppendLine("\t/// Returns the " + bladeName + " coordinate of this " + gmvTypeName + ".");
SB.Append(funcDecl);
SB.AppendLine(" {");
SB.AppendLine("\t\treturn (m_gu & " + (1 << groupIdx) + ") ? " +
"m_c[" + S.m_namespace + "_mvSize[m_gu & " + ((1 << groupIdx) - 1) + "] + " + elementIdx + "] : " +
FT.DoubleToString(S, 0.0) + ";");
SB.AppendLine("\t}");
}
/// <summary>
/// Writes code to extract the scalar part of an SMV
/// </summary>
/// <param name="S"></param>
/// <param name="cgd">Results go here. Also intermediate data for code generation. Also contains plugins and cog.</param>
public static void WriteExtractScalarPart(Specification S, G25.CG.Shared.CGdata cgd)
{
StringBuilder declSB = cgd.m_declSB;
StringBuilder defSB = (S.m_inlineFunctions) ? cgd.m_inlineDefSB : cgd.m_defSB;
declSB.AppendLine("");
defSB.AppendLine("");
const String smvName = "x";
const bool ptr = true;
RefGA.BasisBlade scalarBlade = new RefGA.BasisBlade(1.0);
foreach (G25.FloatType FT in S.m_floatTypes)
{
foreach (G25.SMV smv in S.m_SMV)
{
String[] AS = G25.CG.Shared.CodeUtil.GetAccessStr(S, smv, smvName, ptr);
String typeName = FT.GetMangledName(S, smv.Name);
String funcName = typeName + "_" + FT.type;
declSB.AppendLine("/** Returns scalar part of " + typeName + " */");
String funcDecl = FT.type + " " + funcName + "(const " + typeName + " *" + smvName + ")";
declSB.Append(funcDecl);
declSB.AppendLine(";");
defSB.Append(funcDecl);
{
defSB.AppendLine(" {");
int scalarCoordIdx = smv.GetElementIdx(scalarBlade);
if (scalarCoordIdx >= 0)
{
double multiplier = 1.0 / smv.BasisBlade(0, scalarCoordIdx).scale;
string multiplerString = (multiplier != 1.0) ? (FT.DoubleToString(S, multiplier) + " * "): "";
defSB.AppendLine("\treturn " + multiplerString + AS[scalarCoordIdx] + ";");
}
else defSB.AppendLine("\treturn " + FT.DoubleToString(S, 0.0) + ";");
defSB.AppendLine("}");
}
} // end of loop over all smvs
} // end of loop over all float types
}
/// <summary>
/// Constructor for a BasisBlade without a constant coordinate value
/// </summary>
public BasisBlade(RefGA.BasisBlade B)
{
m_basisBlade = B;
m_isConstant = false;
m_constantValue = 0.0;
}
/// <returns>a list of basis blades in canonical order, sorted by grade.
/// Each entry in the outer list contains the basis blades for that grade.</returns>
public List<List<G25.rsbbp.BasisBlade>> GetDefaultBasisBlades()
{
// allocate list for each grade
List<List<G25.rsbbp.BasisBlade>> L = new List<List<G25.rsbbp.BasisBlade>>();
for (int i = 0; i < m_spec.m_dimension + 1; i++)
L.Add(new List<G25.rsbbp.BasisBlade>());
// enumerate over all basis blades, add them to respective lists
for (uint b = 0; b < (1 << m_spec.m_dimension); b++)
{
RefGA.BasisBlade B = new RefGA.BasisBlade(b);
L[B.Grade()].Add(new G25.rsbbp.BasisBlade(B));
}
return L;
}
/// <summary>
/// Writes a function to set a GOM struct according to vector images, for all floating point types.
/// </summary>
/// <param name="S">Used for basis vector names and output language.</param>
/// <param name="cgd">Results go here. Also intermediate data for code generation. Also contains plugins and cog.</param>
/// <param name="FT">Float type.</param>
/// <param name="matrixMode">When true, generates code for setting from matrix instead of vector images.</param>
/// <param name="transpose">When this parameter is true and <c>matrixMode</c> is true, generates code for setting from transpose matrix.</param>
public static void WriteSetVectorImages(Specification S, G25.CG.Shared.CGdata cgd, FloatType FT, bool matrixMode, bool transpose)
{
G25.GOM gom = S.m_GOM;
// get the 'plan' on how to initialize all domain basis blades efficiently:
uint[][][] plan = G25.CG.Shared.OMinit.ComputeOmInitFromVectorsPlan(S, gom);
double[][] signs = G25.CG.Shared.OMinit.ComputeOmInitFromVectorsSigns(S, gom, plan);
// get range vector type
G25.SMV rangeVectorType = G25.CG.Shared.OMinit.GetRangeVectorType(S, FT, cgd, gom);
// setup array of arguments, function specification, etc
int NB_ARGS = (matrixMode) ? 1 : gom.DomainVectors.Length;
string[] argTypes = new string[NB_ARGS], argNames = new string[NB_ARGS];
RefGA.Multivector[] symbolicBBvalues = new RefGA.Multivector[1 << S.m_dimension]; // symbolic basis blade values go here
if (matrixMode)
{
argTypes[0] = FT.type;
argNames[0] = "M";
// convert matrix columns to symbolic Multivector values
for (int d = 0; d < gom.DomainVectors.Length; d++)
{
RefGA.BasisBlade[] IV = new RefGA.BasisBlade[gom.RangeVectors.Length];
for (int r = 0; r < gom.RangeVectors.Length; r++)
{
int matrixIdx = (transpose) ? (d * gom.RangeVectors.Length + r) : (r * gom.DomainVectors.Length + d);
string entryName = argNames[0] + "[" + matrixIdx + "]";
IV[r] = new RefGA.BasisBlade(gom.RangeVectors[r].bitmap, 1.0, entryName);
}
symbolicBBvalues[gom.DomainVectors[d].bitmap] = new RefGA.Multivector(IV);
}
}
else
{
for (int d = 0; d < NB_ARGS; d++)
{
argTypes[d] = rangeVectorType.Name;
argNames[d] = "i" + gom.DomainVectors[d].ToLangString(S.m_basisVectorNames);
bool ptr = S.OutputC();
symbolicBBvalues[gom.DomainVectors[d].bitmap] = G25.CG.Shared.Symbolic.SMVtoSymbolicMultivector(S, rangeVectorType, argNames[d], ptr);
}
}
// generate function names for all grades (basis blade names not included)
string typeName = FT.GetMangledName(S, gom.Name);
string[] funcNames = GetSetFromLowerGradeFunctionNames(S, FT, matrixMode);
// setup instructions (for main function, and subfunctions for grades)
List<G25.CG.Shared.Instruction> mainI = new List<G25.CG.Shared.Instruction>();
List<G25.CG.Shared.Instruction>[] bladeI = new List<G25.CG.Shared.Instruction>[1 << S.m_dimension];
{
bool mustCast = false;
int nbTabs = 1;
string dstName = (S.OutputC()) ? G25.fgs.RETURN_ARG_NAME : SmvUtil.THIS;
bool dstPtr = S.OutputCppOrC();
bool declareDst = false;
for (int g = 1; g < gom.Domain.Length; g++)
{
for (int d = 0; d < gom.DomainForGrade(g).Length; d++)
{
G25.SMVOM smvOM = gom.DomainSmvForGrade(g)[d];
RefGA.BasisBlade domainBlade = gom.DomainForGrade(g)[d];
if (g > 1)
{
bladeI[domainBlade.bitmap] = new List<G25.CG.Shared.Instruction>();
string funcCallCode = funcNames[g] + "_" + d + "(";
if (S.OutputC()) funcCallCode += G25.fgs.RETURN_ARG_NAME;
funcCallCode += ");";
mainI.Add(new G25.CG.Shared.VerbatimCodeInstruction(nbTabs, funcCallCode));
}
// follow the plan
RefGA.Multivector value = new RefGA.Multivector(signs[g][d]);
uint[] P = plan[g][d];
for (int p = 0; p < P.Length; p++)
value = RefGA.Multivector.op(value, symbolicBBvalues[P[p]]);
// add instructions
List<G25.CG.Shared.Instruction> I = (g == 1) ? mainI : bladeI[domainBlade.bitmap];
I.Add(new G25.CG.Shared.CommentInstruction(nbTabs, "Set image of " + domainBlade.ToString(S.m_basisVectorNames)));
I.Add(new G25.CG.Shared.AssignInstruction(nbTabs, smvOM, FT, mustCast, value, dstName, dstPtr, declareDst));
// store symbolic value
symbolicBBvalues[domainBlade.bitmap] = G25.CG.Shared.Symbolic.SMVtoSymbolicMultivector(S, smvOM, dstName, dstPtr);
}
}
}
// output grade > 1 functions
if (cgd.generateOmInitCode(FT.type))
{
for (int g = 2; g < gom.Domain.Length; g++)
{
for (int d = 0; d < gom.DomainForGrade(g).Length; d++)
{
RefGA.BasisBlade domainBlade = gom.DomainForGrade(g)[d];
string funcName = funcNames[g] + "_" + d;
G25.fgs F = new G25.fgs(funcName, funcName, "", new string[0], new string[0], new string[] { FT.type }, null, null, null); // null, null = metricName, comment, options
//F.InitArgumentPtrFromTypeNames(S);
bool computeMultivectorValue = false;
G25.CG.Shared.FuncArgInfo returnArgument = null;
if (S.OutputC())
returnArgument = new G25.CG.Shared.FuncArgInfo(S, F, -1, FT, gom.Name, computeMultivectorValue);
int nbArgs = 0;
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, nbArgs, FT, S.m_GMV.Name, computeMultivectorValue);
Comment comment;
comment = new Comment("Sets grade " + g + " part of outermorphism matrix based on lower grade parts.");
bool inline = false; // do not inline this potentially huge function
bool staticFunc = false;
bool writeDecl = S.OutputC();
G25.CG.Shared.Functions.WriteFunction(S, cgd, F, inline, staticFunc, "void", funcName, returnArgument, FAI, bladeI[domainBlade.bitmap], comment, writeDecl);
}
}
}
{ // output grade 1 function
G25.fgs F = new G25.fgs(funcNames[1], funcNames[1], "", argTypes, argNames, new string[] { FT.type }, null, null, null); // null, null = metricName, comment, options
F.InitArgumentPtrFromTypeNames(S);
if (matrixMode)
{
F.m_argumentPtr[0] = S.OutputCppOrC();
F.m_argumentArr[0] = S.OutputCSharpOrJava();
}
bool computeMultivectorValue = false;
G25.CG.Shared.FuncArgInfo returnArgument = null;
if (S.OutputC())
returnArgument = new G25.CG.Shared.FuncArgInfo(S, F, -1, FT, gom.Name, computeMultivectorValue);
G25.CG.Shared.FuncArgInfo[] FAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(S, F, NB_ARGS, FT, S.m_GMV.Name, computeMultivectorValue);
Comment comment;
if (!matrixMode) comment = new Comment("Sets " + typeName + " from images of the domain vectors.");
else comment = new Comment("Sets " + typeName + " from a " + (transpose ? "transposed " : "") + "matrix");
bool inline = false; // do not inline this potentially huge function
bool staticFunc = false;
bool writeDecl = S.OutputC();
G25.CG.Shared.Functions.WriteFunction(S, cgd, F, inline, staticFunc, "void", funcNames[1], returnArgument, FAI, mainI, comment, writeDecl);
}
}
/// <summary>
/// Constructor for a BasisBlade with a constant coordinate value
/// </summary>
/// <param name="B"></param>
/// <param name="constantValue"></param>
public BasisBlade(RefGA.BasisBlade B, double constantValue)
{
m_basisBlade = B;
m_isConstant = true;
m_constantValue = constantValue;
}
/// <summary>
/// If this FunctionGenerator can implement 'F', then this function should complete the (possible)
/// blanks in 'F'. This means:
/// - Fill in F.m_returnTypeName if it is empty
/// - Fill in F.m_argumentTypeNames (and m_argumentVariableNames) if it is empty.
/// </summary>
public override void CompleteFGS()
{
// fill in ArgumentTypeNames
if (m_fgs.ArgumentTypeNames.Length == 0)
{
if (m_specification.m_GOM == null)
{
throw new G25.UserException("No general outermorphism type defined, while it is required because the type of the first argument was unspecified.");
}
m_fgs.m_argumentTypeNames = new String[] { m_specification.m_GOM.Name, m_gmv.Name };
}
// init argument pointers from the completed typenames (language sensitive);
m_fgs.InitArgumentPtrFromTypeNames(m_specification);
// get all function info
FloatType FT = m_specification.GetFloatType(m_fgs.FloatNames[0]);
bool computeMultivectorValue = true;
G25.CG.Shared.FuncArgInfo[] tmpFAI = G25.CG.Shared.FuncArgInfo.GetAllFuncArgInfo(m_specification, m_fgs, NB_ARGS, FT, m_specification.m_GMV.Name, computeMultivectorValue);
m_om = (G25.OM)tmpFAI[0].Type;
m_mv = (G25.MV)tmpFAI[1].Type;
m_gmvFunc = !tmpFAI[1].IsScalarOrSMV();
// compute intermediate results, set return type
if (m_gmvFunc)
{
m_fgs.m_returnTypeName = m_gmv.Name; // gmv + gmv = gmv
}
else
{
RefGA.Multivector inputValue = tmpFAI[1].MultivectorValue[0];
// Compute m_returnValue:
// Replace each basis blade in 'inputValue' with its value under the outermorphism.
m_returnValue = RefGA.Multivector.ZERO;
for (int i = 0; i < inputValue.BasisBlades.Length; i++)
{
// get input blade and domain for that grade
RefGA.BasisBlade inputBlade = inputValue.BasisBlades[i];
RefGA.BasisBlade[] domainBlades = m_om.DomainForGrade(inputBlade.Grade());
for (int c = 0; c < domainBlades.Length; c++)
{
// if a match is found in the domain, add range vector to m_returnValue
if (domainBlades[c].bitmap == inputBlade.bitmap)
{
bool ptr = m_specification.OutputC();
RefGA.Multivector omColumnValue = G25.CG.Shared.Symbolic.SMVtoSymbolicMultivector(m_specification, m_om.DomainSmvForGrade(inputBlade.Grade())[c], tmpFAI[0].Name, ptr);
RefGA.Multivector inputBladeScalarMultiplier = new RefGA.Multivector(new RefGA.BasisBlade(inputBlade, 0));
RefGA.Multivector domainBladeScalarMultiplier = new RefGA.Multivector(new RefGA.BasisBlade(domainBlades[c], 0));
m_returnValue = RefGA.Multivector.Add(m_returnValue,
RefGA.Multivector.gp(
RefGA.Multivector.gp(omColumnValue, inputBladeScalarMultiplier),
domainBladeScalarMultiplier));
break; // no need to search the other domainBlades too
}
}
}
// get name of return type
if (m_fgs.m_returnTypeName.Length == 0)
{
m_fgs.m_returnTypeName = G25.CG.Shared.SpecializedReturnType.GetReturnType(m_specification, m_cgd, m_fgs, FT, m_returnValue).GetName();
}
}
}
/// <returns>'L' convert to a double array</returns>
public static RefGA.BasisBlade[][] ListToDoubleArray(List<List<RefGA.BasisBlade>> L)
{
RefGA.BasisBlade[][] A = new RefGA.BasisBlade[L.Count][];
for (int i = 0; i < L.Count; i++)
A[i] = L[i].ToArray();
return A;
}
/// <summary>
/// Converts a scalar basis blade (with optional symbolic part) to a string in the output language of <c>S</c>.
///
/// Some effort is made to output code which is close to that a human would write.
/// </summary>
/// <param name="S">Specification of algebra, used for output language, basis vector names, etc.</param>
/// <param name="FT">Floating point type of output.</param>
/// <param name="B">The basis blade.</param>
/// <returns>String code representation of 'B'.</returns>
public static string ScalarToLangString(G25.Specification S, G25.FloatType FT, RefGA.BasisBlade B)
{
string symScaleStr = "";
{ // convert symbolic part
if (B.symScale != null)
{
// symbolic scalar string goes in symResult
System.Text.StringBuilder symResult = new System.Text.StringBuilder();
int tCnt = 0;
for (int t = 0; t < B.symScale.Length; t++) // for each term ...*...*...+
{
Object[] T = (Object[])B.symScale[t].Clone(); // clone 'T' because IsolateInverses() might alter it!
if (T != null) // if term is not null
{
// first find all scalarop inverses
// turn those into a new term, but without inverses?
Object[] TI = IsolateInverses(T);
// emit 'T'
int pCnt = EmitTerm(S, FT, T, tCnt, symResult);
if (TI != null) // do we have to divide by a number of terms?
{
// emit '/(TI)'
symResult.Append("/(");
EmitTerm(S, FT, TI, 0, symResult);
symResult.Append(")");
}
if (pCnt > 0)
{
tCnt++; // only increment number of terms when T was not empty
}
}
}
if (tCnt > 0)
{
symScaleStr = ((tCnt > 1) ? "(" : "") + symResult + ((tCnt > 1) ? ")" : "");
}
}
} // end of symbolic part
// special cases when numerical scale is exactly +- 1
if (B.scale == 1.0)
{
if (symScaleStr.Length > 0)
{
return(symScaleStr);
}
else
{
return(FT.DoubleToString(S, 1.0));
}
}
else if (B.scale == -1.0)
{
if (symScaleStr.Length > 0)
{
return("-" + symScaleStr);
}
else
{
return(FT.DoubleToString(S, -1.0));
}
}
else
{
// get numerical part
string numScaleStr = FT.DoubleToString(S, B.scale);
// merge symbolic and numerical
if (symScaleStr.Length > 0)
{
numScaleStr = numScaleStr + "*" + symScaleStr;
}
// done
return(numScaleStr);
}
} // end of function ScalarToLangString
/// <returns>'L' convert to a double array</returns>
public static RefGA.BasisBlade[][] ListToDoubleArray(List<List<G25.rsbbp.BasisBlade>> L)
{
RefGA.BasisBlade[][] A = new RefGA.BasisBlade[L.Count][];
for (int i = 0; i < L.Count; i++) {
A[i] = new RefGA.BasisBlade[L[i].Count];
for (int j = 0; j < L[i].Count; j++)
A[i][j] = L[i][j].GetBasisBlade;
}
return A;
}
