public static Shader FromFile(ShaderType type, string fileName)
{
Shader shader = new Shader(type, string.Empty);
shader.LoadSource(fileName);
return shader;
}
public void Initialize(Shader vertexShader, Shader fragmentShader)
{
if (!Initialized)
{
this.vertexShader = vertexShader;
this.fragmentShader = fragmentShader;
if (!vertexShader.Initialized)
{
vertexShader.Initialize();
}
if (!fragmentShader.Initialized)
{
fragmentShader.Initialize();
}
Handle = GL.CreateProgram();
GL.AttachShader(Handle, vertexShader.Handle);
GL.AttachShader(Handle, fragmentShader.Handle);
GL.LinkProgram(Handle);
int status;
GL.GetProgram(Handle, ProgramParameter.LinkStatus, out status);
string info;
GL.GetProgramInfoLog(Handle, out info);
string message = string.IsNullOrEmpty(info) ? "Program linked succesfully"
: string.Format("Program link result:{0}{1}",
Environment.NewLine, info);
System.Diagnostics.Debug.WriteLine(message);
if (status == 0)
{
throw new GraphicsException(message);
}
Initialized = true;
}
}
protected override void Dispose(bool nongc)
{
if (nongc && Initialized)
{
GL.DetachShader(Handle, vertexShader.Handle);
GL.DetachShader(Handle, fragmentShader.Handle);
vertexShader.Dispose();
fragmentShader.Dispose();
vertexShader = null;
fragmentShader = null;
GL.DeleteProgram(Handle);
Handle = 0;
Initialized = false;
}
}
