private static void ParseModifier(ShaderLanguage foundation, XmlNode modifierNode)
{
XmlAttribute attName = modifierNode.Attributes["name"];
if (attName == null)
{
return;
}
Modifier modifier = new Modifier();
modifier.NativeText = attName.InnerText;
foreach (XmlNode child in modifierNode)
{
if (child.Name.ToLower() != "requirement")
{
continue;
}
XmlAttribute attCSharp = child.Attributes["csharp"];
if (attCSharp != null && !string.IsNullOrWhiteSpace(attCSharp.InnerText))
{
modifier.Requirements.Add(attCSharp.InnerText.ToLower());
}
}
if (modifier.Requirements.Count > 0 && !string.IsNullOrWhiteSpace(modifier.NativeText))
{
foundation._modifiers.Add(modifier);
}
}
internal void Initialize(TranslationRunner runner, ShaderLanguage language, List <string> preprocessorSymbols, TranslationFlags flags)
{
Flags = flags;
Runner = runner;
Language = language;
ParseOptions = new CSharpParseOptions(LanguageVersion.CSharp7_3, DocumentationMode.Parse, SourceCodeKind.Regular, preprocessorSymbols);
}
internal void Clear()
{
SourceSegment seg = _lastSegment;
SourceSegment prev = null;
while (seg != null)
{
prev = seg.Previous;
Pooling.SourceSegments.Put(seg);
seg = prev;
}
_firstSegment = null;
_lastSegment = null;
_curSegment = null;
foreach (ScopeInfo si in _scopes)
{
Pooling.Scopes.Put(si);
}
Pooling.Scopes.Put(_currentScope);
_rootScope = null;
_currentScope = null;
_language = null;
}
private static void ParseWord(ShaderLanguage foundation, XmlNode wordNode)
{
Type translatedType = ShaderType.RetrieveType(wordNode.Attributes["type"].InnerText);
if (translatedType == null)
{
return;
}
bool uniformDimensionSingular = false;
if (wordNode.Attributes["uniformSizeIsSingular"] != null)
{
bool.TryParse(wordNode.Attributes["uniformSizeIsSingular"].InnerText, out uniformDimensionSingular);
}
if (translatedType.IsGenericType)
{
foreach (XmlNode subTypeNode in wordNode)
{
if (subTypeNode.Name.ToLower() != "generic")
{
continue;
}
string generic = subTypeNode.Attributes["type"]?.InnerText;
string nativeName = subTypeNode.Attributes["name"]?.InnerText;
if (!string.IsNullOrWhiteSpace(generic) && !string.IsNullOrWhiteSpace(nativeName))
{
Type genericType = ShaderType.RetrieveType(generic) ?? throw new TypeAccessException($"The type {generic} is not valid in {foundation.Language} lexicon.");
Type finalType = translatedType.MakeGenericType(genericType);
foundation._keywords.Add(finalType, new Translation()
{
NativeText = nativeName,
UniformSizeIsSingular = uniformDimensionSingular,
});
}
}
}
else
{
string generic = wordNode.Attributes["type"]?.InnerText;
string nativeName = wordNode.Attributes["name"]?.InnerText;
if (!string.IsNullOrWhiteSpace(generic) && !string.IsNullOrWhiteSpace(nativeName))
{
foundation._keywords.Add(translatedType, new Translation()
{
NativeText = nativeName,
UniformSizeIsSingular = uniformDimensionSingular,
});
}
}
}
/// <summary>
/// Creates a new instance of <see cref="ShaderType"/>.
/// </summary>
/// <param name="translation">The language-specific translation of the original type.</param>
/// <param name="originalType">The original type.</param>
/// <param name="lang">The shader language which the type belongs to.</param>
internal ShaderType(ShaderLanguage lang, string translation, Type originalType)
{
IsRegisteredType = TypeHelper.IsRegisteredType(originalType);
IsUnorderedAccessType = TypeHelper.IsUnorderedAccessType(originalType);
_dimensions = new List <int>();
Dimensions = _dimensions.AsReadOnly();
Language = lang;
OriginalType = originalType;
Translation = translation;
ElementType = originalType.IsArray ? originalType.GetElementType() : originalType;
WasArrayType = originalType.IsArray;
if (ElementType.IsValueType)
{
if (typeof(IVector).IsAssignableFrom(ElementType))
{
IsVector = true;
int elementCount = (int)ElementType.GetField("ELEMENT_COUNT").GetValue(null);
SubElementSizeOf = (int)ElementType.GetField("ELEMENT_SIZE").GetValue(null);
SizeOf = (int)ElementType.GetField("SIZE_OF").GetValue(null);
Type eType = (Type)ElementType.GetField("ElementType").GetValue(null);
_dataTypes.TryGetValue(eType, out _dataType);
_dimensions.Add(elementCount);
}
else if (typeof(IMatrix).IsAssignableFrom(ElementType))
{
IsMatrix = true;
int rowCount = (int)ElementType.GetField("ROW_COUNT").GetValue(null);
int colCount = (int)ElementType.GetField("COLUMN_COUNT").GetValue(null);
SubElementSizeOf = (int)ElementType.GetField("ELEMENT_SIZE").GetValue(null);
SizeOf = (int)ElementType.GetField("SIZE_OF").GetValue(null);
Type eType = (Type)ElementType.GetField("ElementType").GetValue(null);
_dataTypes.TryGetValue(eType, out _dataType);
_dimensions.Add(rowCount);
_dimensions.Add(colCount);
}
else
{
SubElementSizeOf = Marshal.SizeOf(ElementType);
SizeOf = SubElementSizeOf;
_dataTypes.TryGetValue(ElementType, out _dataType);
_dimensions.Add(1);
}
}
SubElementCount = GetTotalElements();
}
internal void Initialize(ShaderTranslationContext sc, TranslationFlags flags)
{
_flags = flags;
_language = sc.Language;
_currentScope = Pooling.Scopes.Get();
_currentScope.Type = ScopeType.Class;
_currentScope.TypeInfo = new ShaderType(_language, sc.ShaderType.Name, sc.ShaderType);
_currentScope.Namespace = $"{sc.ShaderType.Namespace}.{sc.ShaderType.Name}";
_rootScope = _currentScope;
_firstSegment = Pooling.SourceSegments.Get();
_firstSegment.Value = "";
_curSegment = _firstSegment;
_lastSegment = _curSegment;
}
internal TranslationRunner()
{
_processors = new Dictionary <Type, NodeProcessor>();
ShaderLanguage.LoadEmbedded <HlslLanguage>("SharpShader.Languages.HLSL.lang.xml");
ShaderLanguage.LoadEmbedded <GlslFoundation>("SharpShader.Languages.GLSL.lang.xml");
// Preprocessors
IEnumerable <Type> types = ShaderType.FindOfType <NodeProcessor>();
foreach (Type t in types)
{
NodeProcessor pp = Activator.CreateInstance(t) as NodeProcessor;
_processors.Add(pp.ParsedType, pp);
}
}
internal static void LoadEmbedded <T>(string embeddedName) where T : ShaderLanguage
{
using (Stream stream = EmbeddedResource.GetStream(embeddedName))
{
XmlDocument doc = new XmlDocument();
doc.Load(stream);
foreach (XmlNode rootNode in doc)
{
if (rootNode.Name.ToLower() != "lexicon")
{
continue;
}
XmlAttribute attLanguage = rootNode.Attributes["language"];
if (attLanguage != null && Enum.TryParse(attLanguage.InnerText, out OutputLanguage language))
{
ShaderLanguage foundation = Activator.CreateInstance(typeof(T),
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance,
null, new object[] { language }, null) as ShaderLanguage;
foreach (XmlNode node in rootNode)
{
switch (node.Name.ToLower())
{
case "word":
ParseWord(foundation, node);
break;
case "modifier":
ParseModifier(foundation, node);
break;
}
}
_foundations.Add(language, foundation);
}
else
{
throw new XmlException("The specified shader language is invalid or missing.");
}
}
}
}
internal TranslationContext Run(TranslationArgs args)
{
List <string> preprocessorSymbols = null;
if (args.PreprocessorSymbols != null)
{
preprocessorSymbols = new List <string>(args.PreprocessorSymbols);
}
Stopwatch mainTimer = new Stopwatch();
mainTimer.Start();
ShaderLanguage foundation = ShaderLanguage.Get(args.Language);
TranslationContext context = Pooling.Contexts.Get();
context.Initialize(this, foundation, preprocessorSymbols, args.Flags);
Message("Analyzing", TranslationMessageType.Status);
AnalysisInfo analysis = Analyze(context, args.CSharpSources);
Message($"Analysis completed");
if (analysis.HasError)
{
foreach (TranslationMessage msg in context.Messages)
{
Message(msg.Text, msg.MessageType);
}
Message($"Cannot proceed until errors are fixed. Aborting.");
}
else
{
Message($"Mapping shader classes", TranslationMessageType.Status);
Map(context, analysis.Trees);
Message($"Mapping completed. Found {context.Shaders.Count} shader classes.");
foreach (ShaderTranslationContext sc in context.Shaders)
{
Message($"Translating {sc.Name}", TranslationMessageType.Status);
Stopwatch timer = new Stopwatch();
timer.Start();
Message($"Translating to {context.Language.Language}");
Translate(sc, sc.RootNode);
sc.FinalSource = sc.Source.ToString();
timer.Stop();
Message($" Finished '{sc.Name}' in {timer.Elapsed.TotalMilliseconds:N2} milliseconds");
}
mainTimer.Stop();
foreach (TranslationMessage msg in context.Messages)
{
Message(msg.Text, msg.MessageType);
}
int errors = context.Messages.Count(t => t.MessageType == TranslationMessageType.Error);
int warnings = context.Messages.Count(t => t.MessageType == TranslationMessageType.Warning);
Message($"Finished conversion of { args.CSharpSources.Count} source(s) with {errors} errors and {warnings} warnings. ");
Message($"Took {mainTimer.Elapsed.TotalMilliseconds:N2} milliseconds");
}
return(context);
}
