public static string Preprocess(
string effectCode, string filePath, IDictionary<string, string> defines, List<string> dependencies,
IEffectCompilerOutput output)
{
var fullPath = Path.GetFullPath(filePath);
var pp = new CppNet.Preprocessor();
pp.EmitExtraLineInfo = false;
pp.addFeature(Feature.LINEMARKERS);
pp.setListener(new MGErrorListener(output));
pp.setFileSystem(new MGFileSystem(dependencies));
pp.setQuoteIncludePath(new List<string> { Path.GetDirectoryName(fullPath) });
foreach (var define in defines)
pp.addMacro(define.Key, define.Value);
pp.addInput(new MGStringLexerSource(effectCode, true, fullPath));
var result = new StringBuilder();
var endOfStream = false;
while (!endOfStream)
{
var token = pp.token();
switch (token.getType())
{
case CppNet.Token.EOF:
endOfStream = true;
break;
case CppNet.Token.CPPCOMMENT:
break;
case CppNet.Token.CCOMMENT:
{
var tokenText = token.getText();
if (tokenText != null)
{
// Need to preserve line breaks so that line numbers are correct.
foreach (var c in tokenText)
if (c == '\n')
result.Append(c);
}
break;
}
default:
{
var tokenText = token.getText();
if (tokenText != null)
result.Append(tokenText);
break;
}
}
}
return result.ToString();
}
public static string Preprocess(
string effectCode, string filePath, IDictionary <string, string> defines, List <string> dependencies,
IEffectCompilerOutput output)
{
var fullPath = Path.GetFullPath(filePath);
var pp = new CppNet.Preprocessor();
pp.EmitExtraLineInfo = false;
pp.addFeature(Feature.LINEMARKERS);
pp.setListener(new MGErrorListener(fullPath, output));
pp.setFileSystem(new MGFileSystem(dependencies));
pp.setQuoteIncludePath(new List <string> {
Path.GetDirectoryName(fullPath)
});
foreach (var define in defines)
{
pp.addMacro(define.Key, define.Value);
}
pp.addInput(new StringLexerSource(effectCode, true, fullPath));
var result = new StringBuilder();
var endOfStream = false;
while (!endOfStream)
{
var token = pp.token();
switch (token.getType())
{
case CppNet.Token.EOF:
endOfStream = true;
break;
case CppNet.Token.CCOMMENT:
case CppNet.Token.CPPCOMMENT:
break;
default:
var tokenText = token.getText();
if (tokenText != null)
{
result.Append(tokenText);
}
break;
}
}
return(result.ToString());
}
public static string Preprocess(
string effectCode, string filePath, IDictionary <string, string> defines, List <string> dependencies,
IEffectCompilerOutput output)
{
var fullPath = Path.GetFullPath(filePath);
var pp = new CppNet.Preprocessor();
pp.EmitExtraLineInfo = false;
pp.addFeature(Feature.LINEMARKERS);
pp.setListener(new MGErrorListener(output));
pp.setFileSystem(new MGFileSystem(dependencies));
pp.setQuoteIncludePath(new List <string> {
Path.GetDirectoryName(fullPath)
});
foreach (var define in defines)
{
pp.addMacro(define.Key, define.Value);
}
effectCode = effectCode.Replace("#line", "//--WORKAROUND#line");
pp.addInput(new MGStringLexerSource(effectCode, true, fullPath));
var result = new StringBuilder();
var endOfStream = false;
while (!endOfStream)
{
var token = pp.token();
switch (token.getType())
{
case CppNet.Token.EOF:
endOfStream = true;
break;
case CppNet.Token.CPPCOMMENT:
if (token.getText().StartsWith("//--WORKAROUND#line"))
{
result.Append(token.getText().Replace("//--WORKAROUND#line", "#line"));
}
break;
case CppNet.Token.CCOMMENT:
{
var tokenText = token.getText();
if (tokenText != null)
{
// Need to preserve line breaks so that line numbers are correct.
foreach (var c in tokenText)
{
if (c == '\n')
{
result.Append(c);
}
}
}
break;
}
default:
{
var tokenText = token.getText();
if (tokenText != null)
{
result.Append(tokenText);
}
break;
}
}
}
return(result.ToString());
}
/// <summary>
/// Preprocesses the provided shader or effect source.
/// </summary>
/// <param name="shaderSource">An array of bytes containing the raw source of the shader or effect to preprocess.</param>
/// <param name="sourceFileName">Name of the source file.</param>
/// <param name="defines">A set of macros to define during preprocessing.</param>
/// <param name="includeDirectories">The include directories used by the preprocessor.</param>
/// <returns>
/// The preprocessed shader source.
/// </returns>
public static string Run(string shaderSource, string sourceFileName, ShaderMacro[] defines = null, params string[] includeDirectories)
{
var cpp = new Preprocessor();
cpp.addFeature(Feature.DIGRAPHS);
cpp.addWarning(Warning.IMPORT);
cpp.addFeature(Feature.INCLUDENEXT);
cpp.addFeature(Feature.LINEMARKERS);
// TODO: Handle warning and errors properly instead of relying only on exception
// Don't setup a listener and get any errors via exceptions
cpp.setListener(new ErrorListener());
// Pass defines
if (defines != null)
{
foreach (var define in defines)
{
if (!string.IsNullOrWhiteSpace(define.Name))
{
cpp.addMacro(define.Name, define.Definition ?? string.Empty);
}
}
}
// Setup input directories.
var tempDirectories = new List<string>() { Path.GetDirectoryName(sourceFileName) };
tempDirectories.AddRange(includeDirectories);
cpp.setQuoteIncludePath(tempDirectories);
var inputSource = new StringLexerSource(shaderSource, true, sourceFileName);
cpp.addInput(inputSource);
var textBuilder = new StringBuilder();
var isEndOfStream = false;
while (!isEndOfStream)
{
Token tok = cpp.token();
switch (tok.getType())
{
case Token.EOF:
isEndOfStream = true;
break;
case Token.CCOMMENT:
var strComment = tok.getText() ?? string.Empty;
foreach (var commentChar in strComment)
{
textBuilder.Append(commentChar == '\n' ? '\n' : ' ');
}
break;
case Token.CPPCOMMENT:
break;
default:
var tokenText = tok.getText();
if (tokenText != null)
{
textBuilder.Append(tokenText);
}
break;
}
}
return textBuilder.ToString();
}