public static ShaderClassType ParseSource(string shaderSource, LoggerResult log)
{
var parsingResult = XenkoShaderParser.TryParse(shaderSource, null);
parsingResult.CopyTo(log);
if (parsingResult.HasErrors)
{
return(null);
}
var shader = parsingResult.Shader;
var shaderClass = shader.Declarations.OfType <ShaderClassType>().SingleOrDefault();
if (shaderClass == null)
{
var queue = new Queue <NamespaceBlock>(shader.Declarations.OfType <NamespaceBlock>());
while (queue.Count > 0 && shaderClass == null)
{
var namespaceNode = queue.Dequeue();
shaderClass = namespaceNode.Body.OfType <ShaderClassType>().SingleOrDefault();
foreach (var subNamespace in namespaceNode.Body.OfType <NamespaceBlock>())
{
queue.Enqueue(subNamespace);
}
}
}
return(shaderClass);
}
public static byte[] GenerateCode(string inputFileName, string inputFileContent)
{
// Always output a result into the file
string result;
try
{
var parsingResult = XenkoShaderParser.TryPreProcessAndParse(inputFileContent, inputFileName);
if (parsingResult.HasErrors)
{
result = "// Failed to parse the shader:\n" + parsingResult;
}
else
{
// Try to generate a mixin code.
var shaderKeyGenerator = new ShaderMixinCodeGen(parsingResult.Shader, parsingResult);
shaderKeyGenerator.Run();
result = shaderKeyGenerator.Text ?? string.Empty;
}
}
catch (Exception ex)
{
result = "// Unexpected exceptions occurred while generating the file\n" + ex;
}
// We force the UTF8 to include the BOM to match VS default
var data = Encoding.UTF8.GetBytes(result);
return(Encoding.UTF8.GetPreamble().Concat(data).ToArray());
}
public override void SaveGeneratedAsset(AssetItem assetItem)
{
//generate the .cs files
// Always output a result into the file
string result;
try
{
var parsingResult = XenkoShaderParser.TryPreProcessAndParse(Text, assetItem.FullPath);
if (parsingResult.HasErrors)
{
result = "// Failed to parse the shader:\n" + parsingResult;
}
else
{
// Try to generate a mixin code.
var shaderKeyGenerator = new ShaderMixinCodeGen(parsingResult.Shader, parsingResult);
shaderKeyGenerator.Run();
result = shaderKeyGenerator.Text ?? string.Empty;
}
}
catch (Exception ex)
{
result = "// Unexpected exceptions occurred while generating the file\n" + ex;
}
// We force the UTF8 to include the BOM to match VS default
var data = Encoding.UTF8.GetBytes(result);
File.WriteAllBytes(assetItem.GetGeneratedAbsolutePath(), data);
}
public static byte[] GenerateCode(string inputFileName, string inputFileContent)
{
// Always output a result into the file
string result;
try
{
SiliconStudio.Shaders.Parser.ShaderMacro[] macros;
// Changed some keywords to avoid ambiguities with HLSL and improve consistency
if (inputFileName != null && Path.GetExtension(inputFileName).ToLowerInvariant() == ".xkfx")
{
// XKFX
macros = new[]
{
new SiliconStudio.Shaders.Parser.ShaderMacro("shader", "effect")
};
}
else
{
// XKSL
macros = new[]
{
new SiliconStudio.Shaders.Parser.ShaderMacro("class", "shader")
};
}
var parsingResult = XenkoShaderParser.TryPreProcessAndParse(inputFileContent, inputFileName, macros);
if (parsingResult.HasErrors)
{
result = "// Failed to parse the shader:\n" + parsingResult;
}
else
{
// Try to generate a mixin code.
var shaderKeyGenerator = new ShaderMixinCodeGen(parsingResult.Shader, parsingResult);
shaderKeyGenerator.Run();
result = shaderKeyGenerator.Text ?? string.Empty;
}
}
catch (Exception ex)
{
result = "// Unexpected exceptions occurred while generating the file\n" + ex;
}
// We force the UTF8 to include the BOM to match VS default
var data = Encoding.UTF8.GetBytes(result);
return(Encoding.UTF8.GetPreamble().Concat(data).ToArray());
}
/// <summary>
/// Generates the csharp code from a xkfx file.
/// </summary>
/// <param name="xkfxShaderCode">The PDXFX shader code.</param>
/// <param name="filePath">The file path.</param>
/// <returns>System.String.</returns>
/// <exception cref="System.InvalidOperationException"></exception>
public static string GenerateCsharp(string xkfxShaderCode, string filePath)
{
// Compile
var shader = XenkoShaderParser.PreProcessAndParse(xkfxShaderCode, filePath);
// Try to generate a mixin code.
var loggerResult = new LoggerResult();
var shaderKeyGenerator = new ShaderMixinCodeGen(shader, loggerResult);
if (shaderKeyGenerator.Run())
{
return(shaderKeyGenerator.Text);
}
throw new InvalidOperationException(loggerResult.ToString());
}
public static ShaderClassType ParseSource(string shaderSource, LoggerResult log)
{
var parsingResult = XenkoShaderParser.TryParse(shaderSource, null);
parsingResult.CopyTo(log);
if (parsingResult.HasErrors)
{
return(null);
}
var shader = parsingResult.Shader;
var shaderClass = shader.Declarations.OfType <ShaderClassType>().Single();
return(shaderClass);
}
public override void Save(Stream stream)
{
//regex the class name if it has changed
var className = new UFile(AbsoluteSourceLocation).GetFileName();
Text = Regex.Replace(Text, $"class {className}");
var buffer = Encoding.UTF8.GetBytes(Text);
stream.Write(buffer, 0, buffer.Length);
//generate the .cs files
// Always output a result into the file
string result;
try
{
var parsingResult = XenkoShaderParser.TryPreProcessAndParse(Text, AbsoluteSourceLocation);
if (parsingResult.HasErrors)
{
result = "// Failed to parse the shader:\n" + parsingResult;
}
else
{
// Try to generate a mixin code.
var shaderKeyGenerator = new ShaderMixinCodeGen(parsingResult.Shader, parsingResult);
shaderKeyGenerator.Run();
result = shaderKeyGenerator.Text ?? string.Empty;
}
}
catch (Exception ex)
{
result = "// Unexpected exceptions occurred while generating the file\n" + ex;
}
// We force the UTF8 to include the BOM to match VS default
var data = Encoding.UTF8.GetBytes(result);
File.WriteAllBytes(GeneratedAbsolutePath, data);
}
/// <summary>
/// Generates the csharp code from a xkfx file.
/// </summary>
/// <param name="xkfxShaderCode">The PDXFX shader code.</param>
/// <param name="filePath">The file path.</param>
/// <returns>System.String.</returns>
/// <exception cref="System.InvalidOperationException"></exception>
public static string GenerateCsharp(string xkfxShaderCode, string filePath)
{
// In .xkfx, shader has been renamed to effect, in order to avoid ambiguities with HLSL and .xksl
var macros = new []
{
new Xenko.Core.Shaders.Parser.ShaderMacro("shader", "effect")
};
// Compile
var shader = XenkoShaderParser.PreProcessAndParse(xkfxShaderCode, filePath, macros);
// Try to generate a mixin code.
var loggerResult = new LoggerResult();
var shaderKeyGenerator = new ShaderMixinCodeGen(shader, loggerResult);
if (shaderKeyGenerator.Run())
{
return(shaderKeyGenerator.Text);
}
throw new InvalidOperationException(loggerResult.ToString());
}
public static ShaderClassType ParseSource(string shaderSource, LoggerResult log)
{
var parsingResult = XenkoShaderParser.TryParse(shaderSource, null);
parsingResult.CopyTo(log);
if (parsingResult.HasErrors)
{
return(null);
}
var shader = parsingResult.Shader;
var shaderClass = shader.Declarations.OfType <ShaderClassType>().Single();
shaderClass.SourcePath = null; // shaderSource.Path;
shaderClass.SourceHash = ObjectId.Empty; // shaderSource.Hash;
shaderClass.PreprocessedSourceHash = ObjectId.Empty; // hashPreprocessSource;
shaderClass.IsInstanciated = false;
return(shaderClass);
}
private LoadedShaderClassType LoadShaderClass(ShaderClassSource classSource, string generics, LoggerResult log, SiliconStudio.Shaders.Parser.ShaderMacro[] macros = null)
{
var type = classSource.ClassName;
if (type == null)
{
throw new ArgumentNullException("type");
}
var shaderSourceKey = new ShaderSourceKey(type, generics, macros);
lock (loadedShaders)
{
// Already instantiated
LoadedShaderClassType shaderClass;
if (loadedShaders.TryGetValue(shaderSourceKey, out shaderClass))
{
return(shaderClass);
}
// Load file
var shaderSource = SourceManager.LoadShaderSource(type);
string preprocessedSource;
try
{
preprocessedSource = PreProcessor.Run(shaderSource.Source, shaderSource.Path, macros);
}
catch (Exception ex)
{
log.Error(MessageCode.ErrorUnexpectedException, new SourceSpan(new SourceLocation(shaderSource.Path, 0, 1, 1), 1), ex);
return(null);
}
byte[] byteArray = Encoding.UTF8.GetBytes(preprocessedSource);
var hashPreprocessSource = ObjectId.FromBytes(byteArray);
// Compile
var parsingResult = XenkoShaderParser.TryParse(preprocessedSource, shaderSource.Path);
parsingResult.CopyTo(log);
if (parsingResult.HasErrors)
{
return(null);
}
var shader = parsingResult.Shader;
// As shaders can be embedded in namespaces, get only the shader class and make sure there is only one in a xksl.
var shaderClassTypes = XenkoShaderParser.GetShaderClassTypes(shader.Declarations).ToList();
if (shaderClassTypes.Count != 1)
{
var sourceSpan = new SourceSpan(new SourceLocation(shaderSource.Path, 0, 0, 0), 1);
if (shaderClassTypes.Count > 1)
{
sourceSpan = shaderClassTypes[1].Span;
}
log.Error(XenkoMessageCode.ShaderMustContainSingleClassDeclaration, sourceSpan, type);
return(null);
}
shaderClass = new LoadedShaderClassType();
shaderClass.Type = shaderClassTypes.First();
shaderClass.SourcePath = shaderSource.Path;
shaderClass.SourceHash = shaderSource.Hash;
shaderClass.PreprocessedSourceHash = hashPreprocessSource;
shaderClass.IsInstanciated = false;
// TODO: We should not use Console. Change the way we log things here
// Console.WriteLine("Loading Shader {0}{1}", type, macros != null && macros.Length > 0 ? String.Format("<{0}>", string.Join(", ", macros)) : string.Empty);
// If the file name is not matching the class name, provide an error
if (shaderClass.Type.Name.Text != type)
{
log.Error(XenkoMessageCode.FileNameNotMatchingClassName, shaderClass.Type.Name.Span, type, shaderClass.Type.Name.Text);
return(null);
}
loadedShaders.Add(shaderSourceKey, shaderClass);
return(shaderClass);
}
}
