private static void GetKerningInfo(CCRawList<char> charset)
{
_abcValues.Clear();
var fontFace = new FontFace(_currentFont);
var value = new ABCFloat[1];
var glyphRun = new GlyphRun();
glyphRun.FontFace = fontFace;
glyphRun.FontSize = _currentDIP;
var BrushColor = SharpDX.Color.White;
/*
SharpDX.DirectWrite.Matrix mtrx = new SharpDX.DirectWrite.Matrix();
mtrx.M11 = 1F;
mtrx.M12 = 0;
mtrx.M21 = 0;
mtrx.M22 = 1F;
mtrx.Dx = 0;
mtrx.Dy = 0;
*/
//GlyphMetrics[] metrics = fontFace.GetGdiCompatibleGlyphMetrics(23, 1, mtrx, false, glyphIndices, false);
//FontMetrics metr = fontFace.GetGdiCompatibleMetrics(23, 1, new SharpDX.DirectWrite.Matrix());
//_pRenderTarget.DrawGlyphRun(new SharpDX.DrawingPointF(left, top), glyphRun, new SharpDX.Direct2D1.SolidColorBrush(_pRenderTarget, BrushColor), MeasuringMode.GdiClassic);
int[] codePoints = new int[1];
var unitsPerEm = fontFace.Metrics.DesignUnitsPerEm;
var familyName = _currentFont.ToString();
for (int i = 0; i < charset.Count; i++)
{
var ch = charset[i];
if (!_abcValues.ContainsKey(ch))
{
var textLayout = new TextLayout(FactoryDWrite, ch.ToString(), textFormat, unitsPerEm, unitsPerEm);
var tlMetrics = textLayout.Metrics;
var tlmWidth = tlMetrics.Width;
var tllWidth = tlMetrics.LayoutWidth;
codePoints[0] = (int)ch;
short[] glyphIndices = fontFace.GetGlyphIndices(codePoints);
glyphRun.Indices = glyphIndices;
var metrics = fontFace.GetDesignGlyphMetrics(glyphIndices, false);
//var width = metrics[0].AdvanceWidth + metrics[0].LeftSideBearing + metrics[0].RightSideBearing;
//var glyphWidth = _currentFontSizeEm * (float)metrics[0].AdvanceWidth / unitsPerEm;
//var abcWidth = _currentDIP * (float)width / unitsPerEm;
//value[0].abcfA = _currentFontSizeEm * (float)metrics[0].LeftSideBearing / unitsPerEm;
//value[0].abcfB = _currentFontSizeEm * (float)metrics[0].AdvanceWidth / unitsPerEm;
//value[0].abcfC = _currentFontSizeEm * (float)metrics[0].RightSideBearing / unitsPerEm;
// The A and C values are throwing the spacing off
//value[0].abcfA = _currentDIP * (float)metrics[0].LeftSideBearing / unitsPerEm;
value[0].abcfB = _currentDIP * (float)metrics[0].AdvanceWidth / unitsPerEm;
//value[0].abcfC = _currentDIP * (float)metrics[0].RightSideBearing / unitsPerEm;
_abcValues.Add(
ch,
new KerningInfo()
{
A = value[0].abcfA,
B = value[0].abcfB,
C = value[0].abcfC
});
}
}
}
/// <summary>
/// Imports a single glyph as a bitmap using the msdfgen to convert it to a signed distance field image
/// </summary>
/// <param name="fontFace">FontFace, use to obtain the metrics for the glyph</param>
/// <param name="character">The glyph's character code</param>
/// <param name="fontMetrics">Font metrics, used to obtain design units scale</param>
/// <param name="fontSize">Requested font size. The bigger, the more precise the SDF image is going to be</param>
/// <returns></returns>
private Glyph ImportGlyph(FontFace fontFace, char character, FontMetrics fontMetrics, float fontSize)
{
var indices = fontFace.GetGlyphIndices(new int[] { character });
var metrics = fontFace.GetDesignGlyphMetrics(indices, false);
var metric = metrics[0];
var width = (float)(metric.AdvanceWidth - metric.LeftSideBearing - metric.RightSideBearing) / fontMetrics.DesignUnitsPerEm * fontSize;
var height = (float)(metric.AdvanceHeight - metric.TopSideBearing - metric.BottomSideBearing) / fontMetrics.DesignUnitsPerEm * fontSize;
var xOffset = (float)metric.LeftSideBearing / fontMetrics.DesignUnitsPerEm * fontSize;
var yOffset = (float)(metric.TopSideBearing - metric.VerticalOriginY) / fontMetrics.DesignUnitsPerEm * fontSize;
var advanceWidth = (float)metric.AdvanceWidth / fontMetrics.DesignUnitsPerEm * fontSize;
//var advanceHeight = (float)metric.AdvanceHeight / fontMetrics.DesignUnitsPerEm * fontSize;
var pixelWidth = (int)Math.Ceiling(width + 4);
var pixelHeight = (int)Math.Ceiling(height + 4);
var matrixM31 = -(float)Math.Floor(xOffset) + 1;
var matrixM32 = -(float)Math.Floor(yOffset) + 1;
Bitmap bitmap;
if (char.IsWhiteSpace(character))
{
bitmap = new Bitmap(1, 1, PixelFormat.Format32bppArgb);
}
else
{
bitmap = LoadSDFBitmap(character, pixelWidth, pixelHeight, 1, 1);
}
var glyph = new Glyph(character, bitmap)
{
XOffset = -matrixM31,
XAdvance = advanceWidth,
YOffset = -matrixM32,
};
return glyph;
}
private Glyph ImportGlyph(Factory factory, FontFace fontFace, char character, FontMetrics fontMetrics, float fontSize, FontAntiAliasMode antiAliasMode)
{
var indices = fontFace.GetGlyphIndices(new int[] { character });
var metrics = fontFace.GetDesignGlyphMetrics(indices, false);
var metric = metrics[0];
var width = (float)(metric.AdvanceWidth - metric.LeftSideBearing - metric.RightSideBearing) / fontMetrics.DesignUnitsPerEm * fontSize;
var height = (float)(metric.AdvanceHeight - metric.TopSideBearing - metric.BottomSideBearing) / fontMetrics.DesignUnitsPerEm * fontSize;
var xOffset = (float)metric.LeftSideBearing / fontMetrics.DesignUnitsPerEm * fontSize;
var yOffset = (float)(metric.TopSideBearing - metric.VerticalOriginY) / fontMetrics.DesignUnitsPerEm * fontSize;
var advanceWidth = (float)metric.AdvanceWidth / fontMetrics.DesignUnitsPerEm * fontSize;
//var advanceHeight = (float)metric.AdvanceHeight / fontMetrics.DesignUnitsPerEm * fontSize;
var pixelWidth = (int)Math.Ceiling(width + 4);
var pixelHeight = (int)Math.Ceiling(height + 4);
var matrix = new RawMatrix3x2
{
M11 = 1,
M22 = 1,
M31 = -(float)Math.Floor(xOffset) + 1,
M32 = -(float)Math.Floor(yOffset) + 1
};
Bitmap bitmap;
if (char.IsWhiteSpace(character))
{
bitmap = new Bitmap(1, 1, PixelFormat.Format32bppArgb);
}
else
{
var glyphRun = new GlyphRun
{
FontFace = fontFace,
Advances = new[] { (float)Math.Ceiling(advanceWidth) },
FontSize = fontSize,
BidiLevel = 0,
Indices = indices,
IsSideways = false,
Offsets = new[] { new GlyphOffset() }
};
RenderingMode renderingMode;
if (antiAliasMode != FontAntiAliasMode.Aliased)
{
var rtParams = new RenderingParams(factory);
renderingMode = fontFace.GetRecommendedRenderingMode(fontSize, 1.0f, MeasuringMode.Natural, rtParams);
rtParams.Dispose();
}
else
{
renderingMode = RenderingMode.Aliased;
}
using (var runAnalysis = new GlyphRunAnalysis(factory,
glyphRun,
1.0f,
matrix,
renderingMode,
MeasuringMode.Natural,
0.0f,
0.0f))
{
var bounds = new RawRectangle(0, 0, pixelWidth, pixelHeight);
bitmap = new Bitmap(pixelWidth, pixelHeight, PixelFormat.Format32bppArgb);
if (renderingMode == RenderingMode.Aliased)
{
var texture = new byte[pixelWidth * pixelHeight];
runAnalysis.CreateAlphaTexture(TextureType.Aliased1x1, bounds, texture, texture.Length);
for (int y = 0; y < pixelHeight; y++)
{
for (int x = 0; x < pixelWidth; x++)
{
int pixelX = y * pixelWidth + x;
var grey = texture[pixelX];
var color = Color.FromArgb(grey, grey, grey);
bitmap.SetPixel(x, y, color);
}
}
}
else
{
var texture = new byte[pixelWidth * pixelHeight * 3];
runAnalysis.CreateAlphaTexture(TextureType.Cleartype3x1, bounds, texture, texture.Length);
for (int y = 0; y < pixelHeight; y++)
{
for (int x = 0; x < pixelWidth; x++)
{
int pixelX = (y * pixelWidth + x) * 3;
var red = LinearToGamma(texture[pixelX]);
var green = LinearToGamma(texture[pixelX + 1]);
var blue = LinearToGamma(texture[pixelX + 2]);
var color = Color.FromArgb(red, green, blue);
bitmap.SetPixel(x, y, color);
}
}
}
}
}
var glyph = new Glyph(character, bitmap)
{
XOffset = -matrix.M31,
XAdvance = advanceWidth,
YOffset = -matrix.M32,
};
return glyph;
}
private Glyph ImportGlyph(Factory factory, FontFace fontFace, char character, FontMetrics fontMetrics, float fontSize, bool activateAntiAliasDetection)
{
var indices = fontFace.GetGlyphIndices(new int[] {character});
var metrics = fontFace.GetDesignGlyphMetrics(indices, false);
var metric = metrics[0];
var width = (float)(metric.AdvanceWidth - metric.LeftSideBearing - metric.RightSideBearing) / fontMetrics.DesignUnitsPerEm * fontSize;
var height = (float)(metric.AdvanceHeight - metric.TopSideBearing - metric.BottomSideBearing) / fontMetrics.DesignUnitsPerEm * fontSize;
var xOffset = (float)metric.LeftSideBearing / fontMetrics.DesignUnitsPerEm * fontSize;
var yOffset = (float)(metric.TopSideBearing - metric.VerticalOriginY) / fontMetrics.DesignUnitsPerEm * fontSize;
var advanceWidth = (float)(metric.AdvanceWidth) / fontMetrics.DesignUnitsPerEm * fontSize;
var advanceHeight = (float)(metric.AdvanceHeight) / fontMetrics.DesignUnitsPerEm * fontSize;
var pixelWidth = (int)Math.Ceiling(width + 2);
var pixelHeight = (int)Math.Ceiling(height + 2);
Bitmap bitmap;
if(char.IsWhiteSpace(character))
{
bitmap = new Bitmap(1, 1, PixelFormat.Format32bppArgb);
}
else
{
var glyphRun = new GlyphRun()
{
FontFace = fontFace,
Advances = new[] { (float)Math.Round(advanceWidth) },
FontSize = fontSize,
BidiLevel = 0,
Indices = indices,
IsSideways = false,
Offsets = new[] {new GlyphOffset()}
};
var matrix = SharpDX.Matrix.Identity;
matrix.M41 = -(float)Math.Floor(xOffset - 1);
matrix.M42 = -(float)Math.Floor(yOffset - 1);
RenderingMode renderingMode;
if (activateAntiAliasDetection)
{
var rtParams = new RenderingParams(factory);
renderingMode = fontFace.GetRecommendedRenderingMode(fontSize, 1.0f, MeasuringMode.Natural, rtParams);
rtParams.Dispose();
}
else
{
renderingMode = RenderingMode.Aliased;
}
using(var runAnalysis = new GlyphRunAnalysis(factory,
glyphRun,
1.0f,
matrix,
renderingMode,
MeasuringMode.Natural,
0.0f,
0.0f))
{
var bounds = new SharpDX.Rectangle(0, 0, pixelWidth, pixelHeight);
bitmap = new Bitmap(bounds.Width, bounds.Height, PixelFormat.Format32bppArgb);
if(renderingMode == RenderingMode.Aliased)
{
var texture = new byte[bounds.Width * bounds.Height];
runAnalysis.CreateAlphaTexture(TextureType.Aliased1x1, bounds, texture, texture.Length);
bitmap = new Bitmap(bounds.Width, bounds.Height, PixelFormat.Format32bppArgb);
for (int y = 0; y < bounds.Height; y++)
{
for (int x = 0; x < bounds.Width; x++)
{
int pixelX = y * bounds.Width + x;
var grey = texture[pixelX];
var color = Color.FromArgb(grey, grey, grey);
bitmap.SetPixel(x, y, color);
}
}
}
else
{
var texture = new byte[bounds.Width * bounds.Height * 3];
runAnalysis.CreateAlphaTexture(TextureType.Cleartype3x1, bounds, texture, texture.Length);
for (int y = 0; y < bounds.Height; y++)
{
for (int x = 0; x < bounds.Width; x++)
{
int pixelX = (y * bounds.Width + x) * 3;
var red = texture[pixelX];
var green = texture[pixelX + 1];
var blue = texture[pixelX + 2];
var color = Color.FromArgb(red, green, blue);
bitmap.SetPixel(x, y, color);
}
}
}
//var positionUnderline = (float)fontMetrics.UnderlinePosition / fontMetrics.DesignUnitsPerEm * fontSize;
//var positionUnderlineSize = (float)fontMetrics.UnderlineThickness / fontMetrics.DesignUnitsPerEm * fontSize;
}
}
var glyph = new Glyph(character, bitmap)
{
XOffset = (float)Math.Floor(xOffset-1),
XAdvance = (float)Math.Round(advanceWidth),
YOffset = (float)Math.Floor(yOffset-1),
};
return glyph;
}