public GlyphImage CreateGlyphImage(GlyphPathBuilder builder, float pxscale) { //1. create var txToVxs = new GlyphTranslatorToVxs(); builder.ReadShapes(txToVxs); // //create new one var glyphVxs = new VertexStore(); txToVxs.WriteOutput(glyphVxs, pxscale); //find bound //-------------------------------------------- //GlyphImage glyphImg = new GlyphImage() RectD bounds = RectD.ZeroIntersection; PixelFarm.CpuBlit.VertexProcessing.BoundingRect.GetBoundingRect(new VertexStoreSnap(glyphVxs), ref bounds); ////-------------------------------------------- int w = (int)System.Math.Ceiling(bounds.Width); int h = (int)System.Math.Ceiling(bounds.Height); if (w < 5) { w = 5; } if (h < 5) { h = 5; } //translate to positive quadrant // double dx = (bounds.Left < 0) ? -bounds.Left : 0; double dy = (bounds.Bottom < 0) ? -bounds.Bottom : 0; // dx = Math.Ceiling(dx); //since we need to move it, then move it with integer value dy = Math.Ceiling(dy); //since we need to move it, then move it with integer value //we need some borders int horizontal_margin = 1; //'margin' 1px int vertical_margin = 1; //margin 1 px dx += horizontal_margin; //+ left margin dy += vertical_margin; //+ top margin //-------------------------------------------- //create glyph img w = (int)Math.Ceiling(dx + w + horizontal_margin); //+right margin h = (int)Math.Ceiling(dy + h + vertical_margin); //+bottom margin ActualBitmap img = new ActualBitmap(w, h); AggPainter painter = AggPainter.Create(img); if (TextureKind == TextureKind.StencilLcdEffect) { VertexStore vxs2 = new VertexStore(); glyphVxs.TranslateToNewVxs(dx + 0.33f, dy, vxs2); //offset to proper x of subpixel rendering *** glyphVxs = vxs2; // painter.UseSubPixelLcdEffect = true; //we use white glyph on black bg for this texture painter.Clear(Color.Black); painter.FillColor = Color.White; painter.Fill(glyphVxs); //apply sharpen filter //painter.DoFilter(new RectInt(0, h, w, 0), 2); //painter.DoFilter(new RectInt(0, h, w, 0), 2); //? } else { VertexStore vxs2 = new VertexStore(); glyphVxs.TranslateToNewVxs(dx, dy, vxs2); glyphVxs = vxs2; painter.UseSubPixelLcdEffect = false; if (TextureKind == TextureKind.StencilGreyScale) { painter.Clear(Color.Empty); painter.FillColor = Color.Black; } else { painter.Clear(BackGroundColor); painter.FillColor = this.GlyphColor; } painter.Fill(glyphVxs); } // var glyphImage = new GlyphImage(w, h); glyphImage.TextureOffsetX = dx; glyphImage.TextureOffsetY = dy; glyphImage.SetImageBuffer(ActualBitmapExtensions.CopyImgBuffer(img, w), false); //copy data from agg canvas to glyph image return(glyphImage); }