internal void Render(ref RShader shader, ref RVertexBuffer vertexBuffer, ref RIndexBuffer indexBuffer, string text, Vector2 location, RColor color, Matrix matrix)
{
Vector2 pen = location;
pen.Y += MeasureString(text).Height;
float x = pen.X;
List <RVertexData2D> quads = new List <RVertexData2D>();
foreach (char c in text)
{
if (c == '\r')
{
continue;
}
if (c == '\n')
{
pen.X = x;
pen.Y += LineHeight;
continue;
}
if (c == ' ')
{
pen.X += SpaceWidth;
continue;
}
if (c == '\t')
{
pen.X += (SpaceWidth * 3);
continue;
}
RFontGlyph glyph = GetGlyphForChar(c);
var dest = new Reactor.Math.Rectangle();
dest.X = (int)(pen.X + glyph.Offset.X);
dest.Y = (int)pen.Y - ((int)glyph.Offset.Y);
dest.Width = glyph.Bounds.Width;
dest.Height = glyph.Bounds.Height;
vertexBuffer.SetData <RVertexData2D>(AddQuads(dest, glyph.UVBounds));
vertexBuffer.Bind();
vertexBuffer.BindVertexArray();
indexBuffer.Bind();
vertexBuffer.VertexDeclaration.Apply(shader, IntPtr.Zero);
GL.DrawElements(PrimitiveType.Triangles, indexBuffer.IndexCount, DrawElementsType.UnsignedShort, IntPtr.Zero);
REngine.CheckGLError();
indexBuffer.Unbind();
vertexBuffer.Unbind();
vertexBuffer.UnbindVertexArray();
pen.X += glyph.Advance;
}
}
internal void Load(ref BinaryReader stream)
{
Size = stream.ReadInt32();
Name = stream.ReadString();
Kerning = stream.ReadBoolean();
LineHeight = stream.ReadInt32();
SpaceWidth = stream.ReadInt32();
Ascent = stream.ReadInt32();
Descent = stream.ReadInt32();
int glyph_count = stream.ReadInt32();
Glyphs = new List <RFontGlyph>();
for (var i = 0; i < glyph_count; i++)
{
var glyph = new RFontGlyph();
glyph.Load(ref stream);
Glyphs.Add(glyph);
}
stream.Close();
}
public Reactor.Math.Rectangle MeasureString(string text)
{
Reactor.Math.Rectangle r = new Reactor.Math.Rectangle();
foreach (char c in text)
{
if (c == ' ')
{
r.Width += SpaceWidth;
continue;
}
if (c == '\t')
{
r.Width += (SpaceWidth * 3);
continue;
}
RFontGlyph glyph = GetGlyphForChar(c);
r.Height = System.Math.Max(r.Height, glyph.Bounds.Height);
r.Width += (int)glyph.Offset.X;
}
return(r);
}
internal void Generate(Face face, int size, int dpi)
{
face.SetCharSize(0, new Fixed26Dot6(size), 0, (uint)dpi);
Name = face.FamilyName;
face.LoadChar((uint)32, (LoadFlags.Render | LoadFlags.Monochrome | LoadFlags.Pedantic), LoadTarget.Normal);
SpaceWidth = face.Glyph.Metrics.HorizontalAdvance.ToInt32();
LineHeight = face.Height >> 6;
Kerning = face.HasKerning;
Size = size;
Ascent = face.Ascender >> 6;
Descent = face.Descender >> 6;
Glyphs = new List <RFontGlyph>();
for (int i = 33; i < 126; i++)
{
uint charIndex = face.GetCharIndex((uint)i);
face.LoadGlyph(charIndex, (LoadFlags.Render | LoadFlags.Color | LoadFlags.Pedantic | LoadFlags.CropBitmap), LoadTarget.Normal);
if (face.Glyph.Bitmap.PixelMode == PixelMode.None)
{
continue;
}
RFontGlyph glyph = new RFontGlyph();
glyph.bitmap = face.Glyph.Bitmap.ToGdipBitmap(Color.White);
glyph.Bounds = new Reactor.Math.Rectangle(0, 0, glyph.bitmap.Width, glyph.bitmap.Height);
glyph.CharIndex = i;
glyph.Offset = new Vector2(face.Glyph.Metrics.HorizontalBearingX.ToInt32(), face.Glyph.Metrics.HorizontalBearingY.ToInt32());
glyph.Advance = face.Glyph.Advance.X.ToInt32();
Glyphs.Add(glyph);
}
Glyphs.Sort(new FontGlyphSizeSorter());
var missed = -1;
var width = 16;
Bitmap b = new Bitmap(1, 1);
while (missed != 0)
{
missed = 0;
AtlasNode root = new AtlasNode();
root.bounds = new Reactor.Math.Rectangle(0, 0, width, width);
b.Dispose();
b = new Bitmap(width, width);
Graphics g = Graphics.FromImage(b);
g.Clear(Color.Transparent);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
for (var i = 0; i < Glyphs.Count; i++)
{
RFontGlyph glyph = Glyphs[i];
AtlasNode result = root.Insert(glyph.Bounds);
if (result != null)
{
Reactor.Math.Rectangle bounds = result.bounds;
//g.DrawImageUnscaledAndClipped(glyph.bitmap, bounds);
g.DrawImage(glyph.bitmap, bounds);
glyph.Bounds = bounds;
glyph.UVBounds = new Vector4((float)bounds.X, (float)bounds.Y, (float)bounds.Width, (float)bounds.Height);
glyph.UVBounds /= (float)width;
Glyphs[i] = glyph;
}
else
{
missed += 1;
break;
}
}
width += 16;
}
Texture = new RTexture2D();
Texture.LoadFromBitmap(b);
Texture.SetTextureMagFilter(RTextureMagFilter.Linear);
Texture.SetTextureMinFilter(RTextureMinFilter.LinearMipmapLinear);
Texture.SetTextureWrapMode(RTextureWrapMode.ClampToBorder, RTextureWrapMode.ClampToBorder);
REngine.CheckGLError();
}
