/// <summary>
/// Translates an object creation, e.g. "new float4(...)".
/// </summary>
/// <remarks>
/// GLSL 1.1 does not support matrix casts.
/// </remarks>
public override StringBuilder VisitObjectCreateExpression(ObjectCreateExpression objCreateExpr)
{
if (!(objCreateExpr.Type.GetType() == typeof(SimpleType)))
{
return(base.VisitObjectCreateExpression(objCreateExpr));
}
var simpleType = (SimpleType)objCreateExpr.Type;
var dataType = simpleType.Annotation <TypeReference>().ToType();
if (dataType == typeof(float3x3))
{
var methodRef = (MethodReference)objCreateExpr.Annotations.First();
var methodDef = methodRef.Resolve();
var methodParam = methodDef.Parameters.FirstOrDefault();
if (methodParam != null && methodParam.ParameterType.IsType <float4x4>())
{
var instr = GetInstructionFromStmt(objCreateExpr.GetParent <Statement>());
DebugLog.Warning("Matrix casting (float4x4 to float3x3) is not supported " +
"in GLSL 1.1. Expression has been converted automatically", instr);
var argName = objCreateExpr.Arguments.First().AcceptVisitor(this);
var row1 = argName + "[0].xyz";
var row2 = argName + "[1].xyz";
var row3 = argName + "[2].xyz";
var type = objCreateExpr.Type.AcceptVisitor(this).ToString();
return(new StringBuilder().Method(type, row1, row2, row3));
}
}
return(base.VisitObjectCreateExpression(objCreateExpr));
}
string GuessParameterName(ObjectCreateExpression objectCreateExpression, List <string> validNames)
{
if (validNames.Count == 1)
{
return(validNames[0]);
}
var parent = objectCreateExpression.GetParent <IfElseStatement>();
if (parent == null)
{
return(null);
}
return(GetParameterName(parent.Condition));
}