internal void RenderGlyphOnAtlas(FontGlyph 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;
currentAtlas.RenderGlyph(_textureCreator, glyph, BlurAmount, StrokeAmount, PremultiplyAlpha);
glyph.Atlas = currentAtlas;
}
private FontAtlas GetCurrentAtlas(ITexture2DManager device, int textureWidth, int textureHeight)
#endif
{
if (_currentAtlas == null)
{
Texture2D existingTexture = null;
if (ExistingTexture != null && Atlases.Count == 0)
{
existingTexture = ExistingTexture;
}
_currentAtlas = new FontAtlas(textureWidth, textureHeight, 256, existingTexture);
// If existing texture is used, mark existing used rect as used
if (existingTexture != null && !ExistingTextureUsedSpace.IsEmpty)
{
if (!_currentAtlas.AddSkylineLevel(0, ExistingTextureUsedSpace.X, ExistingTextureUsedSpace.Y, ExistingTextureUsedSpace.Width, ExistingTextureUsedSpace.Height))
{
throw new Exception(string.Format("Unable to specify existing texture used space: {0}", ExistingTextureUsedSpace));
}
// TODO: Clear remaining space
}
Atlases.Add(_currentAtlas);
}
return(_currentAtlas);
}
public void Dispose()
{
if (_fonts != null)
{
foreach (var font in _fonts)
{
font.Dispose();
}
_fonts.Clear();
}
Atlases?.Clear();
_currentAtlas = null;
_glyphs?.Clear();
}
public FontSystem(FontSystemParams p)
{
_params_ = p;
atlas = new FontAtlas(_params_.Width, _params_.Height, 256);
_fonts = new Font[4];
_fontsNumber = 0;
_itw = 1.0f / _params_.Width;
_ith = 1.0f / _params_.Height;
_texData = new byte[_params_.Width * _params_.Height];
Array.Clear(_texData, 0, _texData.Length);
_dirtyRect[0] = _params_.Width;
_dirtyRect[1] = _params_.Height;
_dirtyRect[2] = 0;
_dirtyRect[3] = 0;
AddWhiteRect(2, 2);
ClearState();
}
private FontGlyph GetGlyphInternal(GraphicsDevice graphicsDevice, Dictionary <int, FontGlyph> glyphs, int codepoint)
{
var glyph = GetGlyphWithoutBitmap(glyphs, codepoint);
if (glyph == null)
{
return(null);
}
if (graphicsDevice == null || glyph.Atlas != null || glyph.IsEmpty)
{
return(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;
currentAtlas.RenderGlyph(graphicsDevice, glyph);
glyph.Atlas = currentAtlas;
return(glyph);
}
public FontSystem(FontSystemParams p)
{
_params_ = p;
AtlasFull = () => ResetAtlas();
_atlas = new FontAtlas(_params_.Width, _params_.Height, 256);
_itw = 1.0f / _params_.Width;
_ith = 1.0f / _params_.Height;
_texData = new byte[_params_.Width * _params_.Height];
_colorData = new Color[_params_.Width * _params_.Height];
Array.Clear(_texData, 0, _texData.Length);
_dirtyRect[0] = _params_.Width;
_dirtyRect[1] = _params_.Height;
_dirtyRect[2] = 0;
_dirtyRect[3] = 0;
AddWhiteRect(2, 2);
ClearState();
}
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;
}
private FontGlyph GetGlyph(Font font, int codepoint, int isize, int iblur, bool isBitmapRequired)
{
var g = 0;
var advance = 0;
var lsb = 0;
var x0 = 0;
var y0 = 0;
var x1 = 0;
var y1 = 0;
var gw = 0;
var gh = 0;
var gx = 0;
var gy = 0;
float scale = 0;
FontGlyph glyph = null;
var size = isize / 10.0f;
if (isize < 2)
{
return(null);
}
if (iblur > 20)
{
iblur = 20;
}
if (font.TryGetGlyph(codepoint, isize, iblur, out glyph))
{
if (!isBitmapRequired || glyph.X0 >= 0 && glyph.Y0 >= 0)
{
return(glyph);
}
}
g = font._font.fons__tt_getGlyphIndex(codepoint);
if (g == 0)
{
throw new Exception(string.Format("Could not find glyph for codepoint {0}", codepoint));
}
scale = font._font.fons__tt_getPixelHeightScale(size);
font._font.fons__tt_buildGlyphBitmap(g, size, scale, &advance, &lsb, &x0, &y0, &x1, &y1);
var pad = FontGlyph.PadFromBlur(iblur);
gw = x1 - x0 + pad * 2;
gh = y1 - y0 + pad * 2;
var currentAtlas = CurrentAtlas;
if (isBitmapRequired)
{
if (!currentAtlas.AddRect(gw, gh, ref gx, ref gy))
{
var ev = CurrentAtlasFull;
if (ev != null)
{
ev(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));
}
}
}
else
{
gx = -1;
gy = -1;
}
if (glyph == null)
{
glyph = new FontGlyph
{
Codepoint = codepoint,
Size = isize,
Blur = iblur
};
font.SetGlyph(codepoint, isize, iblur, glyph);
}
glyph.Index = g;
glyph.AtlasIndex = currentAtlas.Index;
glyph.X0 = gx;
glyph.Y0 = gy;
glyph.X1 = glyph.X0 + gw;
glyph.Y1 = glyph.Y0 + gh;
glyph.XAdvance = (int)(scale * advance * 10.0f);
glyph.XOffset = x0 - pad;
glyph.YOffset = y0 - pad;
if (!isBitmapRequired)
{
return(glyph);
}
currentAtlas.RenderGlyph(font, glyph, gw, gh, scale);
return(glyph);
}
