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 = Matrix.Identity;
matrix.M41 = -(float)Math.Floor(xOffset) + 1;
matrix.M42 = -(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,
(Matrix3x2)matrix,
renderingMode,
MeasuringMode.Natural,
0.0f,
0.0f))
{
var bounds = new Mathematics.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);
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 = 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.M41,
XAdvance = advanceWidth,
YOffset = -matrix.M42,
};
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 = Matrix.Identity;
matrix.M41 = -(float)Math.Floor(xOffset) + 1;
matrix.M42 = -(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,
(Matrix3x2)matrix,
renderingMode,
MeasuringMode.Natural,
0.0f,
0.0f))
{
var bounds = new Mathematics.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);
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 = 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.M41,
XAdvance = advanceWidth,
YOffset = -matrix.M42,
};
return glyph;
}