internal void RenderGlyphOnAtlas(DynamicFontGlyph glyph)
{
var currentAtlas = CurrentAtlas;
int gx = 0, gy = 0;
var gw = glyph.Bounds.Width;
var gh = glyph.Bounds.Height;
if (!currentAtlas.AddRect(gw, gh, ref gx, ref gy))
{
CurrentAtlasFull?.Invoke(this, EventArgs.Empty);
// This code will force creation of new atlas
_currentAtlas = null;
currentAtlas = CurrentAtlas;
// Try to add again
if (!currentAtlas.AddRect(gw, gh, ref gx, ref gy))
{
throw new Exception(string.Format("Could not add rect to the newly created atlas. gw={0}, gh={1}", gw, gh));
}
}
glyph.Bounds.X = gx;
glyph.Bounds.Y = gy;
#if MONOGAME || FNA || STRIDE
currentAtlas.RenderGlyph(_graphicsDevice, glyph, BlurAmount, StrokeAmount, PremultiplyAlpha);
#else
currentAtlas.RenderGlyph(_textureCreator, glyph, BlurAmount, StrokeAmount, PremultiplyAlpha);
#endif
glyph.Texture = currentAtlas.Texture;
}
private DynamicFontGlyph GetGlyphWithoutBitmap(int codepoint)
{
DynamicFontGlyph glyph;
if (Glyphs.TryGetValue(codepoint, out glyph))
{
return(glyph);
}
int fontSourceIndex;
var g = FontSystem.GetCodepointIndex(codepoint, out fontSourceIndex);
if (g == null)
{
Glyphs[codepoint] = null;
return(null);
}
var fontSize = (int)(FontSize * FontSystem.FontResolutionFactor);
var font = FontSystem.FontSources[fontSourceIndex];
int advance, x0, y0, x1, y1;
font.GetGlyphMetrics(g.Value, fontSize, out advance, out x0, out y0, out x1, out y1);
var pad = Math.Max(DynamicFontGlyph.PadFromBlur(FontSystem.BlurAmount), DynamicFontGlyph.PadFromBlur(FontSystem.StrokeAmount));
var gw = (x1 - x0) + pad * 2;
var gh = (y1 - y0) + pad * 2;
var offset = DynamicFontGlyph.PadFromBlur(FontSystem.BlurAmount);
glyph = new DynamicFontGlyph
{
Codepoint = codepoint,
Id = g.Value,
Size = fontSize,
FontSourceIndex = fontSourceIndex,
Bounds = new Rectangle(0, 0, gw, gh),
XAdvance = advance,
XOffset = x0 - offset,
YOffset = y0 - offset
};
Glyphs[codepoint] = glyph;
return(glyph);
}
private DynamicFontGlyph GetGlyphWithoutBitmap(int codepoint)
{
DynamicFontGlyph glyph = null;
if (_glyphs.TryGetValue(codepoint, out glyph))
{
return(glyph);
}
IFontSource font;
var g = FontSystem.GetCodepointIndex(codepoint, out font);
if (g == null)
{
return(null);
}
int advance = 0, x0 = 0, y0 = 0, x1 = 0, y1 = 0;
font.GetGlyphMetrics(g.Value, FontSize, out advance, out x0, out y0, out x1, out y1);
var pad = Math.Max(DynamicFontGlyph.PadFromBlur(FontSystem.BlurAmount), DynamicFontGlyph.PadFromBlur(FontSystem.StrokeAmount));
var gw = x1 - x0 + pad * 2;
var gh = y1 - y0 + pad * 2;
var offset = DynamicFontGlyph.PadFromBlur(FontSystem.BlurAmount);
glyph = new DynamicFontGlyph
{
Codepoint = codepoint,
Id = g.Value,
Size = FontSize,
Font = font,
Bounds = new Rectangle(0, 0, gw, gh),
XAdvance = advance,
XOffset = x0 - offset,
YOffset = y0 - offset
};
_glyphs[codepoint] = glyph;
return(glyph);
}
internal void RenderGlyphOnAtlas(ITexture2DManager device, DynamicFontGlyph glyph)
#endif
{
var textureSize = new Point(TextureWidth, TextureHeight);
if (ExistingTexture != null)
{
#if MONOGAME || FNA || STRIDE
textureSize = new Point(ExistingTexture.Width, ExistingTexture.Height);
#else
textureSize = device.GetTextureSize(ExistingTexture);
#endif
}
int gx = 0, gy = 0;
var gw = glyph.Bounds.Width;
var gh = glyph.Bounds.Height;
var currentAtlas = GetCurrentAtlas(device, textureSize.X, textureSize.Y);
if (!currentAtlas.AddRect(gw, gh, ref gx, ref gy))
{
CurrentAtlasFull?.Invoke(this, EventArgs.Empty);
// This code will force creation of new atlas
_currentAtlas = null;
currentAtlas = GetCurrentAtlas(device, textureSize.X, textureSize.Y);
// Try to add again
if (!currentAtlas.AddRect(gw, gh, ref gx, ref gy))
{
throw new Exception(string.Format("Could not add rect to the newly created atlas. gw={0}, gh={1}", gw, gh));
}
}
glyph.Bounds.X = gx;
glyph.Bounds.Y = gy;
currentAtlas.RenderGlyph(device, glyph, FontSources[glyph.FontSourceIndex], BlurAmount, StrokeAmount, PremultiplyAlpha, KernelWidth, KernelHeight);
glyph.Texture = currentAtlas.Texture;
}
internal void RenderGlyphOnAtlas(GraphicsDevice device, DynamicFontGlyph glyph)
public void RenderGlyph(ITexture2DManager textureManager, DynamicFontGlyph glyph, IFontSource fontSource, int blurAmount, int strokeAmount, bool premultiplyAlpha, int kernelWidth, int kernelHeight)
#endif
{
var pad = Math.Max(DynamicFontGlyph.PadFromBlur(blurAmount), DynamicFontGlyph.PadFromBlur(strokeAmount));
// Render glyph to byte buffer
var bufferSize = glyph.Bounds.Width * glyph.Bounds.Height;
var buffer = _byteBuffer;
if ((buffer == null) || (buffer.Length < bufferSize))
{
buffer = new byte[bufferSize];
_byteBuffer = buffer;
}
Array.Clear(buffer, 0, bufferSize);
var colorBuffer = _colorBuffer;
if ((colorBuffer == null) || (colorBuffer.Length < bufferSize * 4))
{
colorBuffer = new byte[bufferSize * 4];
_colorBuffer = colorBuffer;
}
fontSource.RasterizeGlyphBitmap(glyph.Id,
glyph.Size,
buffer,
pad + pad * glyph.Bounds.Width,
glyph.Bounds.Width - pad * 2,
glyph.Bounds.Height - pad * 2,
glyph.Bounds.Width);
if (strokeAmount > 0)
{
var width = glyph.Bounds.Width;
var top = width * strokeAmount;
var bottom = (glyph.Bounds.Height - strokeAmount) * glyph.Bounds.Width;
var right = glyph.Bounds.Width - strokeAmount;
var left = strokeAmount;
byte d;
for (var i = 0; i < bufferSize; ++i)
{
var ci = i * 4;
var col = buffer[i];
var black = 0;
if (col == 255)
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = colorBuffer[ci + 3] = 255;
continue;
}
if (i >= top)
{
black = buffer[i - top];
}
if (i < bottom)
{
d = buffer[i + top];
black = ((255 - d) * black + 255 * d) / 255;
}
if (i % width >= left)
{
d = buffer[i - strokeAmount];
black = ((255 - d) * black + 255 * d) / 255;
}
if (i % width < right)
{
d = buffer[i + strokeAmount];
black = ((255 - d) * black + 255 * d) / 255;
}
if (black == 0)
{
if (col == 0)
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = colorBuffer[ci + 3] = 0; //black transparency to suit stroke
continue;
}
if (premultiplyAlpha)
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = colorBuffer[ci + 3] = col;
}
else
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = 255;
colorBuffer[ci + 3] = col;
}
}
else
{
if (col == 0)
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = 0;
colorBuffer[ci + 3] = (byte)black;
continue;
}
if (premultiplyAlpha)
{
var alpha = ((255 - col) * black + 255 * col) / 255;
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = (byte)((alpha * col) / 255);
colorBuffer[ci + 3] = (byte)alpha;
}
else
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = col;
colorBuffer[ci + 3] = (byte)(((255 - col) * black + 255 * col) / 255);
}
}
}
}
else
{
if (blurAmount > 0)
{
fixed(byte *bdst = &buffer[0])
{
Blur(bdst, glyph.Bounds.Width, glyph.Bounds.Height, glyph.Bounds.Width, blurAmount);
}
}
for (var i = 0; i < bufferSize; ++i)
{
var ci = i * 4;
var c = buffer[i];
if (premultiplyAlpha)
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = colorBuffer[ci + 3] = c;
}
else
{
colorBuffer[ci] = colorBuffer[ci + 1] = colorBuffer[ci + 2] = 255;
colorBuffer[ci + 3] = c;
}
}
}
#if MONOGAME || FNA || STRIDE
// Write to texture
if (Texture == null)
{
Texture = Texture2DManager.CreateTexture(graphicsDevice, Width, Height);
}
Texture2DManager.SetTextureData(Texture, glyph.Bounds, colorBuffer);
#else
// Write to texture
if (Texture == null)
{
Texture = textureManager.CreateTexture(Width, Height);
}
textureManager.SetTextureData(Texture, glyph.Bounds, colorBuffer);
#endif
}
public void RenderGlyph(GraphicsDevice graphicsDevice, DynamicFontGlyph glyph, IFontSource fontSource, int blurAmount, int strokeAmount, bool premultiplyAlpha, int kernelWidth, int kernelHeight)
public void RenderGlyph(GraphicsDevice graphicsDevice, DynamicFontGlyph glyph, int blurAmount, int strokeAmount, bool premultiplyAlpha)