예제 #1
0
 public static MemBitmap LoadBitmap(System.IO.Stream input)
 {
     return(MemBitmapExtensions.LoadImage(input));
 }
예제 #2
0
        public GlyphImage CreateGlyphImage(GlyphPathBuilder builder, float pxscale)
        {
            _txToVxs.Reset();
            //1. builder read shape and translate it with _txToVxs
            builder.ReadShapes(_txToVxs);

            using (VxsTemp.Borrow(out var glyphVxs, out var vxs2))
            {
                //2. write translated data (in the _txToVxs) to glyphVxs

                _txToVxs.WriteOutput(glyphVxs, pxscale);

                RectD bounds = glyphVxs.GetBoundingRect();

                //--------------------------------------------
                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;
                }
                //we need some margin
                int horizontal_margin = 1;
                int vertical_margin   = 1;

                //translate to positive quadrant and use minimum space

                int dx = (int)Math.Ceiling((bounds.Left < 0) ? -bounds.Left : 0);
                int dy = 0;

                //vertical adjust =>since we need to move it, then move it with integer value
                if (bounds.Bottom < 0)
                {
                    dy = (int)Math.Ceiling(-bounds.Bottom);
                }
                else if (bounds.Bottom > 0)
                {
                    dy = (int)Math.Floor(-bounds.Bottom);
                }
                dx += horizontal_margin; //margin left
                dy += vertical_margin;
                //--------------------------------------------
                w = dx + w + horizontal_margin;            //+right margin

                h = vertical_margin + h + vertical_margin; //+bottom margin
                AggPainter painter = Painter;
                if (TextureKind == TextureKind.StencilLcdEffect)
                {
                    glyphVxs.TranslateToNewVxs(dx + 0.33f, dy, vxs2); //offset to proper x of subpixel rendering  ***
                    glyphVxs = vxs2;

                    RectD bounds2 = vxs2.GetBoundingRect();
                    if (w < bounds2.Right)
                    {
                        w = (int)Math.Ceiling(bounds2.Right);
                    }
                    //
                    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
                {
                    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);
                }
                //


                if (w > painter.RenderSurface.DestBitmap.Width)
                {
                    w = painter.RenderSurface.DestBitmap.Width;
                }
                if (h > painter.RenderSurface.DestBitmap.Height)
                {
                    h = painter.RenderSurface.DestBitmap.Height;
                }

                var glyphImage = new GlyphImage(w, h);

#if DEBUG
                if (dx < short.MinValue || dx > short.MaxValue)
                {
                    throw new NotSupportedException();
                }
                if (dy < short.MinValue || dy > short.MaxValue)
                {
                    throw new NotSupportedException();
                }
#endif

                glyphImage.TextureOffsetX = (short)dx;
                glyphImage.TextureOffsetY = (short)dy;

                glyphImage.SetImageBuffer(MemBitmapExtensions.CopyImgBuffer(painter.RenderSurface.DestBitmap, w, h), false);
                //copy data from agg canvas to glyph image
                return(glyphImage);
            }
        }
예제 #3
0
 //----------
 public static MemBitmap LoadBitmap(string filename)
 {
     return(MemBitmapExtensions.LoadImageFromFile(filename));
 }