private static SemanticType GetSemanticType(VariableDeclaratorSyntax vds)
{
AttributeSyntax[] attrs = Utilities.GetMemberAttributes(vds, "VertexSemantic");
if (attrs.Length == 1)
{
AttributeSyntax semanticTypeAttr = attrs[0];
string fullArg0 = semanticTypeAttr.ArgumentList.Arguments[0].ToFullString();
if (fullArg0.Contains("."))
{
fullArg0 = fullArg0.Substring(fullArg0.LastIndexOf('.') + 1);
}
if (Enum.TryParse(fullArg0, out SemanticType ret))
{
return(ret);
}
else
{
throw new ShaderGenerationException("Incorrectly formatted attribute: " + semanticTypeAttr.ToFullString());
}
}
else if (attrs.Length > 1)
{
throw new ShaderGenerationException("Too many vertex semantics applied to field: " + vds.ToFullString());
}
if (CheckSingleAttribute(vds, "SystemPositionSemantic"))
{
return(SemanticType.SystemPosition);
}
else if (CheckSingleAttribute(vds, "PositionSemantic"))
{
return(SemanticType.Position);
}
else if (CheckSingleAttribute(vds, "NormalSemantic"))
{
return(SemanticType.Normal);
}
else if (CheckSingleAttribute(vds, "TextureCoordinateSemantic"))
{
return(SemanticType.TextureCoordinate);
}
else if (CheckSingleAttribute(vds, "ColorSemantic"))
{
return(SemanticType.Color);
}
else if (CheckSingleAttribute(vds, "TangentSemantic"))
{
return(SemanticType.Tangent);
}
else if (CheckSingleAttribute(vds, "ColorTargetSemantic"))
{
return(SemanticType.ColorTarget);
}
return(SemanticType.None);
}
private static GeometrySemantic GetGeometrySemantic(VariableDeclaratorSyntax vds)
{
AttributeSyntax[] attrs = Utilities.GetMemberAttributes(vds, "GeometrySemantic");
if (attrs.Length == 1)
{
AttributeSyntax semanticTypeAttr = attrs[0];
string fullArg0 = semanticTypeAttr.ArgumentList.Arguments[0].ToFullString();
if (fullArg0.Contains("."))
{
fullArg0 = fullArg0.Substring(fullArg0.LastIndexOf('.') + 1);
}
if (Enum.TryParse(fullArg0, out GeometrySemantic ret))
{
return(ret);
}
else
{
throw new ShaderGenerationException("Incorrectly formatted attribute: " + semanticTypeAttr.ToFullString());
}
}
else if (attrs.Length > 1)
{
throw new ShaderGenerationException("Too many geometry semantics applied to field: " + vds.ToFullString());
}
return(GeometrySemantic.None);
}
