private void ReplaceShader(object sender, FileSystemEventArgs eventArgs)
{
// Can be triggered by temp files with suffixes
if (!eventArgs.Name.Equals(ShaderCodeFileName))
{
CompileShader();
if (!CompileError)
{
var byteCode = File.ReadAllBytes(ShaderCompiledPath);
var effect = new Effect(GraphicsDevice, byteCode);
// Delete the file as we don't need it anymore
File.Delete(ShaderCompiledPath);
OnCompile.Invoke(effect);
}
}
}
private void _compile()
{
// Setting default globals
SetGlobal("MAX_NUMBER_OF_LIGHTS", Math.Max(1, Game.Game.CurrentScene.Lights.Length).ToString());
_program = GL.CreateProgram();
Console.WriteLine("Compiling vertex shader");
_vertexShaderHandle = _compileSingleShader(ShaderType.VertexShader, _vertexSource);
GL.AttachShader(_program, _vertexShaderHandle);
if (!string.IsNullOrEmpty(_fragmentSource))
{
Console.WriteLine("Compiling fragment shader");
_fragmentShaderHandle = _compileSingleShader(ShaderType.FragmentShader, _fragmentSource);
GL.AttachShader(_program, _fragmentShaderHandle);
}
if (!string.IsNullOrEmpty(_tessControlSource) && !string.IsNullOrEmpty(_tessEvaluationSource))
{
Console.WriteLine("Compiling tesselation control shader");
_tessCShaderHandle = _compileSingleShader(ShaderType.TessControlShader, _tessControlSource);
GL.AttachShader(_program, _tessCShaderHandle);
Console.WriteLine("Compiling tesselation evaluation shader");
_tessEShaderHandle = _compileSingleShader(ShaderType.TessEvaluationShader, _tessEvaluationSource);
GL.AttachShader(_program, _tessEShaderHandle);
GL.PatchParameteri(PatchParameterInt.PatchVertices, 3);
UseTesselation = true;
}
if (!string.IsNullOrEmpty(_geometrySource))
{
Console.WriteLine("Compiling geometry shader");
_geometryShaderHandle = _compileSingleShader(ShaderType.GeometryShader, _geometrySource);
GL.AttachShader(_program, _geometryShaderHandle);
}
GL.LinkProgram(_program);
var ostr = GL.GetProgramInfoLog(_program).Trim();
if (ostr.Length > 0)
{
Console.WriteLine(ostr);
}
int status_code;
GL.GetProgrami(_program, GetProgramParameterName.LinkStatus, out status_code);
if (status_code != 1)
{
throw new ApplicationException("Linking error");
}
GL.UseProgram(_program);
ostr = GL.GetProgramInfoLog(_program).Trim();
if (ostr.Length > 0)
{
Console.WriteLine(ostr);
}
_compiled = true;
OnCompile?.Invoke();
}
