public void LoadDemo(Mini.DemoBase demo) { _demo = demo; demo.Init(); int max = Math.Max(_w, _h); demo.Width = _w; demo.Height = _h; GLPainterCore pcx = null; GLPainter canvasPainter = null; //if demo not create canvas and painter //the we create for it //int max = Math.Max(w, h); //canvas2d = PixelFarm.Drawing.GLES2.GLES2Platform.CreateCanvasGL2d(max, max); //canvasPainter = new GLCanvasPainter(canvas2d, max, max); //canvas2d = PixelFarm.Drawing.GLES2.GLES2Platform.CreateCanvasGL2d(w, h); pcx = GLPainterCore.Create(max, max, _w, _h, true); pcx.OriginKind = PixelFarm.Drawing.RenderSurfaceOriginKind.LeftTop; canvasPainter = new GLPainter(); canvasPainter.BindToPainterCore(pcx); //create text printer for opengl //---------------------- //1. win gdi based //var printer = new WinGdiFontPrinter(canvas2d, w, h); //canvasPainter.TextPrinter = printer; //---------------------- //2. raw vxs //var printer = new PixelFarm.Drawing.Fonts.VxsTextPrinter(canvasPainter); //canvasPainter.TextPrinter = printer; //---------------------- //3. agg texture based font texture //var printer = new AggFontPrinter(canvasPainter, w, h); //canvasPainter.TextPrinter = printer; //---------------------- //4. texture atlas based font texture //------------ //resolve request font //var printer = new GLBmpGlyphTextPrinter(canvasPainter, YourImplementation.BootStrapWinGdi.myFontLoader); //canvasPainter.TextPrinter = printer; _getTextPrinterDel?.Invoke(canvasPainter); demo.SetEssentialGLHandlers( null, () => IntPtr.Zero, () => IntPtr.Zero); DemoBase.InvokeGLPainterReady(demo, pcx, canvasPainter); DemoBase.InvokePainterReady(demo, canvasPainter); }