public static MemBitmap LoadBitmap(System.IO.Stream input)
{
return(MemBitmapExtensions.LoadImage(input));
}
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);
}
}
//----------
public static MemBitmap LoadBitmap(string filename)
{
return(MemBitmapExtensions.LoadImageFromFile(filename));
}