private static string Compile(string shaderCode, ShaderType shaderType, string shaderFileDir)
{
string GetIncludeCode(string includeName)
{
var includeFileName = Path.Combine(shaderFileDir, includeName);
if (File.Exists(includeFileName))
{
return(File.ReadAllText(includeFileName));
}
return($"#error include file '{includeName}' not found");
}
try
{
using (var shader = new ShaderGL(shaderType))
{
var expandedCode = ShaderLoader.ResolveIncludes(shaderCode, GetIncludeCode);
shader.Compile(expandedCode);
return(shader.Log);
}
}
catch (AccessViolationException)
{
return($"(1 1):ERROR: OpenGL shader compiler has crashed");
}
}
private static string ExpandedCode(string shaderCode, string shaderFileDir)
{
string SpecialCommentReplacement(string code, string specialComment)
{
var lines = code.Split(new[] { '\n' }, StringSplitOptions.None); //if UNIX style line endings still working so do not use Envirnoment.NewLine
for (int i = 0; i < lines.Length; ++i)
{
var index = lines[i].IndexOf(specialComment); // search for special comment
if (-1 != index)
{
lines[i] = lines[i].Substring(index + specialComment.Length); // remove everything before special comment
}
}
return(lines.Combine("\n"));
}
string GetIncludeCode(string includeName)
{
var includeFileName = Path.Combine(shaderFileDir, includeName);
if (File.Exists(includeFileName))
{
var includeCode = File.ReadAllText(includeFileName);
includeCode = SpecialCommentReplacement(includeCode, "//!");
return(includeCode);
}
return($"#error include file '{includeName}' not found");
}
shaderCode = SpecialCommentReplacement(shaderCode, "//!");
shaderCode = SpecialCommentReplacement(shaderCode, "//?");
return(ShaderLoader.ResolveIncludes(shaderCode, GetIncludeCode));
}
private static string Compile(string shaderCode, ShaderType shaderType, string shaderFileDir)
{
string SpecialCommentReplacement(string code, string specialComment)
{
var lines = code.Split(new[] { '\n' }, StringSplitOptions.None); //if UNIX style line endings still working so do not use Envirnoment.NewLine
for (int i = 0; i < lines.Length; ++i)
{
var index = lines[i].IndexOf(specialComment); // search for special comment
if (-1 != index)
{
lines[i] = lines[i].Substring(index + specialComment.Length); // remove everything before special comment
}
}
return(lines.Combine("\n"));
}
string GetIncludeCode(string includeName)
{
var includeFileName = Path.Combine(shaderFileDir, includeName);
if (File.Exists(includeFileName))
{
var includeCode = File.ReadAllText(includeFileName);
includeCode = SpecialCommentReplacement(includeCode, "//!");
return(includeCode);
}
return($"#error include file '{includeName}' not found");
}
try
{
using (var shader = new ShaderGL(shaderType))
{
shaderCode = SpecialCommentReplacement(shaderCode, "//!");
shaderCode = SpecialCommentReplacement(shaderCode, "//?");
var expandedCode = ShaderLoader.ResolveIncludes(shaderCode, GetIncludeCode);
shader.Compile(expandedCode);
return(shader.Log);
}
}
catch (AccessViolationException)
{
return($"(1 1):ERROR: OpenGL shader compiler has crashed");
}
}
