void ParseNativeInterface(XElement top, VkCommandInfo result)
{
var function = new VkNativeInterface();
function.Name = result.Name;
function.ReturnType = result.CsReturnType;
int index = 0;
foreach (var param in top.Elements("param"))
{
var arg = new VkFunctionArgument {
Index = index
};
var tokens = param.Value.Split(new[] {
' ',
'[',
']'
}, StringSplitOptions.RemoveEmptyEntries);
arg.IsFixedArray = false;
if (tokens.Length == 2)
{
// usually instance
arg.ArgumentCppType = tokens [0];
arg.IsConst = false;
// or int
}
else if (tokens.Length == 3)
{
// possible const pointer
arg.IsConst = (tokens [0] == "const");
arg.ArgumentCppType = tokens [1];
}
else if (tokens.Length == 4)
{
// const float array
arg.IsConst = (tokens [0] == "const");
arg.ArgumentCppType = tokens [1];
arg.ArrayConstant = tokens [3];
arg.IsFixedArray = true;
}
arg.IsPointer = arg.ArgumentCppType.IndexOf('*') >= 0;
arg.Name = param.Element("name").Value;
arg.BaseCppType = param.Element("type").Value;
arg.BaseCsType = GetTypeCsName(arg.BaseCppType);
XAttribute optionalAttr = param.Attribute("optional");
arg.IsOptional = optionalAttr != null && optionalAttr.Value == "true";
XAttribute lengthAttr = param.Attribute("len");
if (lengthAttr != null)
{
var lengths = lengthAttr.Value.Split(',').Where(s => s != "null-terminated").ToArray();
if (lengths.Length != 1)
{
throw new NotImplementedException(string.Format("param.len != 1 ({0} found)", lengths.Length));
}
arg.LengthVariable = lengths [0];
}
function.Arguments.Add(arg);
// DETERMINE CSHARP TYPE
if (arg.ArgumentCppType == "char*")
{
arg.ArgumentCsType = "string";
}
else if (arg.ArgumentCppType == "void*")
{
arg.ArgumentCsType = "IntPtr";
}
else
{
HandleInfo found;
if (Handles.TryGetValue(arg.BaseCsType, out found))
{
arg.ArgumentCsType = (found.type == "VK_DEFINE_HANDLE") ? "IntPtr" : "UInt64";
}
else
{
arg.ArgumentCsType = arg.BaseCsType;
}
}
arg.UseOut = !arg.IsConst && arg.IsPointer;
++index;
}
result.NativeFunction = function;
}
void ParseNativeInterface(XElement top, VkCommandInfo result)
{
var function = new VkNativeInterface();
function.Name = result.Name;
function.ReturnType = result.CsReturnType;
int index = 0;
foreach (var param in top.Elements("param"))
{
var arg = new VkFunctionArgument {
Index = index
};
var tokens = param.Value.Split(new[] {
' ',
'[',
']'
}, StringSplitOptions.RemoveEmptyEntries);
arg.IsFixedArray = false;
if (tokens.Length == 2)
{
// usually instance
arg.ArgumentCppType = tokens [0];
arg.IsConst = false;
// or int
}
else if (tokens.Length == 3)
{
// possible const pointer
arg.IsConst = (tokens [0] == "const");
arg.ArgumentCppType = tokens [1];
}
else if (tokens.Length == 4)
{
// const float array
arg.IsConst = (tokens [0] == "const");
arg.ArgumentCppType = tokens [1];
arg.ArrayConstant = tokens [3];
arg.IsFixedArray = true;
}
arg.IsPointer = arg.ArgumentCppType.IndexOf('*') >= 0;
arg.Name = param.Element("name").Value;
arg.BaseCppType = param.Element("type").Value;
arg.BaseCsType = mInspector.GetTypeCsName(arg.BaseCppType, "type");
XAttribute optionalAttr = param.Attribute("optional");
arg.IsOptional = optionalAttr != null && optionalAttr.Value == "true";
arg.ByReference = optionalAttr != null && optionalAttr.Value == "false,true";
VkStructInfo structFound;
arg.IsStruct = mInspector.Structs.TryGetValue(arg.BaseCsType, out structFound);
XAttribute lengthAttr = param.Attribute("len");
if (lengthAttr != null)
{
var lengths = lengthAttr.Value.Split(',').Where(s => s != "null-terminated").ToArray();
if (lengths.Length != 1)
{
//throw new NotImplementedException(string.Format("param.len != 1 ({0} found)", lengths.Length));
arg.LengthVariable = null;
}
else
{
arg.LengthVariable = lengths[0];
}
}
function.Arguments.Add(arg);
arg.IsNullableIntPtr = arg.IsOptional && arg.IsPointer && !arg.IsFixedArray && arg.LengthVariable == null;
// DETERMINE CSHARP TYPE
if (arg.ArgumentCppType == "char*")
{
arg.ArgumentCsType = "string";
}
else if (arg.ArgumentCppType == "void*")
{
arg.ArgumentCsType = "IntPtr";
}
else if (arg.ArgumentCppType == "void**")
{
arg.ArgumentCsType = "IntPtr";
}
else
{
VkHandleInfo found;
if (mInspector.Handles.TryGetValue(arg.BaseCsType, out found))
{
arg.ArgumentCsType = found.csType;
}
else if (arg.IsNullableIntPtr)
{
// REQUIRES MARSHALLING FOR NULLS IN ALLOCATOR
arg.ArgumentCsType = "IntPtr";
}
else
{
arg.ArgumentCsType = arg.BaseCsType;
}
}
if (structFound != null && structFound.returnedonly)
{
arg.UseOut = false;
}
else
{
arg.UseOut = !arg.IsConst && arg.IsPointer;
}
arg.IsBlittable = mInspector.BlittableTypes.Contains(arg.ArgumentCsType);
++index;
}
// USE POINTER / unsafe ONLY IF
// ALL ARGUMENTS ARE BLITTABLE
// && >= 1 ARGUMENTS
// && >= 1 BLITTABLE STRUCT && NOT OPTIONAL POINTER
bool useUnsafe = function.Arguments.Count > 0;
uint noOfBlittableStructs = 0;
foreach (var arg in function.Arguments)
{
if (!arg.IsBlittable)
{
useUnsafe = false;
}
if (arg.IsStruct && arg.IsBlittable && !arg.IsNullableIntPtr)
{
noOfBlittableStructs++;
}
}
function.UseUnsafe = useUnsafe && noOfBlittableStructs > 0;
// Add [In, Out] attribute to struct array variables
if (!function.UseUnsafe)
{
foreach (var arg in function.Arguments)
{
if (arg.LengthVariable != null && arg.IsStruct && !arg.IsBlittable)
{
// SINGULAR MARSHALLED STRUCT ARRAY INSTANCES
arg.Attribute = "[In, Out]";
}
else if (arg.IsFixedArray && !arg.IsStruct && arg.IsBlittable)
{
// PRETTY MUCH FOR BLENDCONSTANTS
arg.Attribute = string.Format("[MarshalAs(UnmanagedType.LPArray, SizeConst = {0})]", arg.ArrayConstant);
}
else if (arg.IsStruct && !arg.IsBlittable && !arg.IsNullableIntPtr)
{
// SINGULAR MARSHALLED STRUCT INSTANCES
arg.Attribute = "[In, Out]";
}
//else
//{
// // Add attribute
// VkStructInfo readOnlyStruct;
// if (!arg.IsOptional && mInspector.Structs.TryGetValue(arg.BaseCsType, out readOnlyStruct) && readOnlyStruct.returnedonly)
// arg.Attribute = "[In, Out]";
//}
}
}
result.NativeFunction = function;
}