/// <summary>
/// Determine whether this command is a "Gen" command (that is, generate OpenGL objects).
/// </summary>
/// <param name="ctx">
/// The <see cref="RegistryContext"/> defining the OpenGL registry information.
/// </param>
/// <returns>
/// It returns a boolean value indicating whether this Command is a Gen command.
/// </returns>
internal bool IsGenImplementation(RegistryContext ctx)
{
if (GetImplementationReturnType(ctx) != "void")
{
return(false);
}
if (!CommandParameterArrayLength.IsCompatible(ctx, this))
{
return(false);
}
string implementationName = GetImplementationNameBase(ctx);
return(implementationName.StartsWith("Gen"));
}
public virtual void WriteDebugAssertion(SourceStreamWriter sw, RegistryContext ctx, Command parentCommand)
{
if (Length == null)
{
return;
}
if (CommandParameterArrayLength.IsCompatible(ctx, parentCommand, this))
{
sw.WriteLine("Debug.Assert({0}.Length >= {1});", ImplementationName, Length);
}
#if false
if (Regex.IsMatch(Length, @"[0-9]+"))
{
sw.WriteLine("Debug.Assert({0}.Length >= {1});", ImplementationName, Length);
}
#endif
}
/// <summary>
/// Generate a list of function parameters determining the overloaded methods.
/// </summary>
/// <param name="ctx">
/// The <see cref="RegistryContext"/> defining the OpenGL registry information.
/// </param>
/// <returns></returns>
private List <CommandParameter>[] GetOverridenImplementations(RegistryContext ctx)
{
List <List <CommandParameter> > overridenParameters = new List <List <CommandParameter> >();
// Force plain parameters
bool plainParams = (Flags & CommandFlags.ForcePlainParams) != 0;
// At least an array parameter that can out 1 element only
bool outParamCompatible = CommandParameterOut.IsCompatible(ctx, this);
// The last parameter is 'out-compatible', and flags allow to generate the override
bool outLastParamCompatible = ((Flags & CommandFlags.OutParamLast) != 0) && CommandParameterOut.IsCompatible(ctx, this, Parameters[Parameters.Count - 1]);
// At least a parameter that have a strongly typed representation
bool isStrongCompatible = CommandParameterStrong.IsCompatible(ctx, this);
// At least a parameter in meant as pointer/array, that can be represented using structs
bool isPinnedObjCompatible = CommandParameterPinned.IsCompatible(ctx, this);
// At least one parameter is an array with length correlated with another parameter
bool isArrayLengthCompatible = CommandParameterArrayLength.IsCompatible(ctx, this);
// At least one parameter is a pointer,
bool isUnsafeCompatible = ((Flags & CommandFlags.UnsafeParams) != 0) && CommandParameterUnsafe.IsCompatible(ctx, this);
// Standard implementation - default
if (plainParams || (!isArrayLengthCompatible && !isStrongCompatible))
{
overridenParameters.Add(Parameters);
}
// Strongly typed implementation
if (isStrongCompatible)
{
overridenParameters.Add(GetStrongParameters(ctx));
}
// Pinned object implementation
if (isPinnedObjCompatible)
{
if (plainParams && isStrongCompatible)
{
overridenParameters.Add(GetPinnedParameters(ctx, false));
}
overridenParameters.Add(GetPinnedParameters(ctx, true));
}
// Out modifier implementation
if (outParamCompatible && !outLastParamCompatible)
{
if (plainParams && isStrongCompatible)
{
overridenParameters.Add(GetOutParameters(ctx, false));
}
overridenParameters.Add(GetOutParameters(ctx, true));
}
// Out modifier implementation (last parameter only)
if (outLastParamCompatible)
{
overridenParameters.Add(GetOutLastParameters(ctx));
}
// Array Length overrides
if (isArrayLengthCompatible)
{
overridenParameters.Add(GetArrayLengthParameters(ctx));
}
if (isUnsafeCompatible)
{
overridenParameters.Add(GetUnsafeParameters(ctx));
}
return(overridenParameters.ToArray());
}
/// <summary>
/// Generate the command implementation (generate one object variant).
/// </summary>
/// <param name="sw">
/// The <see cref="SourceStreamWriter"/> used to write the source code.
/// </param>
/// <param name="ctx">
/// The <see cref="RegistryContext"/> defining the OpenGL registry information.
/// </param>
/// <param name="commandParams">
/// A <see cref="T:List{CommandParameter}"/> determining the method overload.
/// </param>
private void GenerateImplementation_GenOneObject(SourceStreamWriter sw, RegistryContext ctx)
{
List <CommandParameter> commandParams = new List <CommandParameter>();
string implementationName = GetImplementationName(ctx);
if (implementationName.EndsWith("ies"))
{
implementationName = implementationName.Substring(0, implementationName.Length - 3) + "y";
}
else if (implementationName.EndsWith("s"))
{
implementationName = implementationName.Substring(0, implementationName.Length - 1);
}
foreach (CommandParameter commandParameter in Parameters)
{
commandParams.Add(new CommandParameterArrayLength(commandParameter, ctx, this));
}
List <CommandParameterArrayLength> arrayParameters = new List <CommandParameterArrayLength>();
List <CommandParameter> signatureParams = commandParams.FindAll(delegate(CommandParameter item) {
bool compatible = CommandParameterArrayLength.IsCompatible(ctx, this, item);
bool arrayLengthParam = CommandParameterArrayLength.IsArrayLengthParameter(item, ctx, this);
if (compatible)
{
arrayParameters.Add((CommandParameterArrayLength)item);
}
return(!compatible && !arrayLengthParam);
});
Debug.Assert(arrayParameters.Count == 1);
CommandParameterArrayLength returnParameter = arrayParameters[0];
string returnParameterType = returnParameter.GetImplementationType(ctx, this);
// Remove []
returnParameterType = returnParameterType.Substring(0, returnParameterType.Length - 2);
// Signature
GenerateImplementation_Signature(sw, ctx, signatureParams, implementationName, returnParameterType);
// Implementation block
sw.WriteLine("{");
sw.Indent();
#region Local Variables
sw.WriteLine("{0}[] {1} = new {0}[1];", returnParameterType, ReturnVariableName);
#endregion
#region Implementation Call
sw.WriteIdentation();
sw.Write("{0}(", GetImplementationName(ctx));
#region Parameters
for (int i = 0; i < commandParams.Count; i++)
{
CommandParameter param = commandParams[i];
if (CommandParameterArrayLength.IsArrayLengthParameter(param, ctx, this))
{
continue;
}
else if (CommandParameterArrayLength.IsCompatible(ctx, this, param))
{
sw.Write(ReturnVariableName);
}
else
{
param.WriteDelegateParam(sw, ctx, this);
}
if (i != commandParams.Count - 1)
{
sw.Write(", ");
}
}
#endregion
sw.Write(");");
sw.WriteLine();
sw.WriteLine("return ({0}[0]);", ReturnVariableName);
#endregion
sw.Unindent();
sw.WriteLine("}");
}
