//public void ForceNeedUpdate()
//{
// forceNeedUpdate = true;
//}
void Update()
{
if (TemporarilyDisableUpdate)
{
return;
}
//check disabled
if (!Enabled)
{
Clear();
return;
}
var newCode = Code.Value;
//forceNeedUpdate = false;
//no update when code is not changed
if (newCode == compiledCode)
{
return;
}
////no update in the editor when no need update and auto update is disabled
//if( !forceNeedUpdate && EngineApp.ApplicationType == EngineApp.ApplicationTypeEnum.Editor && !EditorAutoUpdate )
// return;
//do update
Clear();
compiledCode = newCode;
//forceNeedUpdate = false;
if (newCode != "")
{
compiledScript = GetOrCompileScript(compiledCode, out var error);
if (!string.IsNullOrEmpty(error))
{
Log.Warning($"Unable to compile shader script.\r\n\r\nComponent \"{GetPathFromRoot( true )}\".\r\n\r\n" + error);
return;
}
//One method mode
if (compiledScript != null) //&& compiledMembers.Count == 1 )
{
//compiledOneMethod = (CompiledMethodData)compiledMembers[ 0 ];
OneMethod_AddProperties();
}
}
}
void Clear()
{
compiledCode = "";
compiledScript = null;
//compiledMembers.Clear();
//compiledMemberBySignature.Clear();
//One method mode
//compiledOneMethod = null;
properties.Clear();
propertyBySignature.Clear();
propertyMethodParameters = null;
//propertyMethodReturnParameter = null;
//!!!!
//// clear cached texture for flow graph
//cachedFlowGraphNodeImage?.Dispose();
//cachedFlowGraphNodeImage = null;
}
static CompiledShaderScript GetOrCompileScript(string code, out string error)
{
error = "";
lock ( compiledScriptCache )
{
if (compiledScriptCache.TryGetValue(code, out var script))
{
return(script);
}
}
var lines = code.Split(new[] { "\r\n", "\r", "\n" }, StringSplitOptions.None);
var line = "";
foreach (var line2 in lines)
{
if (line2.Contains(@"/*!public*/"))
{
line = line2;
break;
}
}
if (string.IsNullOrEmpty(line))
{
error = "No method is marked public.";
return(null);
}
var result = new CompiledShaderScript();
result.Body = code;
try
{
// /*!public*/ vec3 Method(vec3 parameter1, vec3 parameter2)
var str1 = line.Substring(line.IndexOf(@"/*!public*/") + @"/*!public*/".Length);
int braceOpen = str1.IndexOf('(');
int braceClose = str1.IndexOf(')');
var str2 = str1.Substring(0, braceOpen).Trim();
var str2Split = str2.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (str2Split.Length != 2)
{
throw new Exception("");
}
var parameters = new List <CompiledShaderScript.Parameter>();
//get return type
var returnTypeStr = str2Split[0];
var returnType = GetTypeByString(returnTypeStr, true);
if (returnType == null)
{
throw new Exception($"Unknown type \"{returnTypeStr}\".");
}
//get method name
result.MethodName = str2Split[1];
//parameters
str2 = str1.Substring(braceOpen + 1, braceClose - braceOpen - 1).Trim();
str2Split = str2.Split(new char[] { ',' });
foreach (var str3 in str2Split)
{
var str4 = str3.Trim();
var str4Split = str4.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (str4Split.Length < 2 || str4Split.Length > 3)
{
throw new Exception("");
}
//out, ref
bool isOut = false;
if (str4Split.Length == 3)
{
switch (str4Split[0])
{
case "out": throw new Exception("Output parameters are not supported.");
//case "out": isOut = true; break;
case "ref": throw new Exception("Parameters passed by reference are not supported.");
default: throw new Exception("");
}
}
//get type
var typeStr = str4Split.Length == 3 ? str4Split[1] : str4Split[0];
var type = GetTypeByString(typeStr, false);
if (type == null)
{
throw new Exception($"Unknown type \"{typeStr}\".");
}
//get name
var name = str4Split.Length == 3 ? str4Split[2] : str4Split[1];
//add parameter
var p = new CompiledShaderScript.Parameter();
p.Name = name;
p.Type = MetadataManager.GetTypeOfNetType(type);
p.Output = isOut;
parameters.Add(p);
}
//add return parameter
if (returnType != typeof(void))
{
var p = new CompiledShaderScript.Parameter();
p.Name = "ReturnValue";
p.Type = MetadataManager.GetTypeOfNetType(returnType);
p.ReturnValue = true;
parameters.Add(p);
}
result.MethodParameters = parameters.ToArray();
}
catch (Exception e)
{
error = "Can't parse method signature.\r\n" + "\"" + line + "\"" + "\r\n\r\n" + e.Message;
return(null);
}
//add to cache
lock ( compiledScriptCache )
{
if (compiledScriptCache.Count > 300)
{
compiledScriptCache.Clear();
}
compiledScriptCache[code] = result;
}
return(result);
}
