public GLFont(Font font, GLFontEngine eng)
{
Engine = eng;
GL.BlendFunc(0, BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
Engine.Shaders.ColorMultShader.Bind();
Name = font.Name;
Size = (int)font.Size;
Bold = font.Bold;
Italic = font.Italic;
Height = font.Height;
CharacterLocations = new List <RectangleF>();
StringFormat sf = new StringFormat(StringFormat.GenericTypographic);
sf.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces | StringFormatFlags.FitBlackBox | StringFormatFlags.NoWrap;
Internal_Font = font;
Bitmap bmp = new Bitmap(Engine.bwidth, Engine.bheight);
GL.BindTexture(TextureTarget.Texture2DArray, Engine.Texture3D);
Characters = Engine.textfile;
using (Graphics gfx = Graphics.FromImage(bmp))
{
gfx.Clear(Color.Transparent);
gfx.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
float X = 6;
float Y = 0;
gfx.FillRectangle(new SolidBrush(Color.White), new Rectangle(0, 0, 5, (int)Height));
Brush brush = new SolidBrush(Color.White);
for (int i = 0; i < Engine.textfile.Length; i++)
{
string chr = Engine.textfile[i] == '\t' ? " " : Engine.textfile[i].ToString();
float nwidth = gfx.MeasureString(chr, font, new PointF(0, 0), sf).Width;
if (X + nwidth >= Engine.bwidth)
{
Y += Height + 4;
X = 0;
}
gfx.DrawString(chr, font, brush, new PointF(X, Y), sf);
CharacterLocations.Add(new RectangleF(X, Y, nwidth, Height));
X += (float)Math.Ceiling(nwidth) + 4;
}
}
BitmapData data = bmp.LockBits(new Rectangle(0, 0, Engine.bwidth, Engine.bheight), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
GL.TexSubImage3D(TextureTarget.Texture2DArray, 0, 0, 0, cZ, Engine.bwidth, Engine.bheight, 1, OpenTK.Graphics.OpenGL4.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
TexZ = cZ;
cZ++;
cZ = cZ % 24;
// TODO: Handle > 24 fonts more cleanly
bmp.UnlockBits(data);
}
public FontSetEngine(GLFontEngine fengine)
{
GLFonts = fengine;
}
public TextVBO(GLFontEngine fengine)
{
Engine = fengine;
}
