copy old glbackend files, no changes made for now, not workingtestglbackend2

12 files changed, 1061 insertions, 0 deletions

diff --git a/OTKCrow/OpenGL/GLBackend/Font/Font.cs b/OTKCrow/OpenGL/GLBackend/Font/Font.cs
new file mode 100644
index 00000000..d07b9bd0
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/Font.cs
@@ -0,0 +1,115 @@
+using System;
+
+
+namespace Crow.GLBackend
+{
+	public class Font
+	{
+		public Font ()
+		{
+		}
+
+		public Font (string name, FontSlant fs, FontWeight fw)
+		{
+			_name = name;
+			switch (fs) {
+			case FontSlant.Italic:
+				Style |= FontStyle.Italic;
+				break;
+			case FontSlant.Oblique:
+				Style |= FontStyle.Oblique;
+				break;
+			}
+			if (fw == FontWeight.Bold)
+				Style |= FontStyle.Bold;
+		}
+
+		string _name = "droid";
+		FontStyle _style = FontStyle.Normal;
+		FontFlag _flags = FontFlag.None;
+
+		int _size = 10;
+
+		public string Name {
+			get { return _name; }
+			set { _name = value; }
+		}
+		public FontStyle Style {
+			get { return _style; }
+			set { _style = value; }
+		}
+		public FontFlag Flags {
+			get { return _flags; }
+			set { _flags = value; }
+		}
+		public FontSlant Slant {
+			get{ 
+				if ((Style & FontStyle.Italic) == FontStyle.Italic)
+					return FontSlant.Italic;
+				if ((Style & FontStyle.Oblique) == FontStyle.Oblique)
+					return FontSlant.Oblique;
+				return FontSlant.Normal;
+			}
+		}
+		public FontWeight Wheight {
+			get{ return (Style & FontStyle.Bold) == FontStyle.Bold ? FontWeight.Bold : FontWeight.Normal; }
+		}
+		public int Size {
+			get { return _size; }
+			set { _size = value; }
+		}
+
+		#region Operators
+		public static implicit operator string(Font c)
+		{
+			return c.ToString();
+		}
+		public static implicit operator Font(string s)
+		{
+			Font f = new Font ();
+
+			if (!string.IsNullOrEmpty (s)) {
+				f.Name = "";
+				string[] attribs = s.TrimStart().TrimEnd().Split(',');
+				for (int i = 0; i < attribs.Length; i++) {
+					FontFlag fl;
+					FontStyle fs;
+					int sz;
+					if (Enum.TryParse<FontFlag> (attribs [i], true, out fl))
+						f.Flags |= fl;
+					else if (Enum.TryParse<FontStyle> (attribs [i], true, out fs))
+						f.Style |= fs;
+					else if (int.TryParse (attribs [i], out sz))
+						f.Size = sz;
+					else
+						f.Name += attribs[i] + " ";
+				}
+				f.Name = f.Name.Trim();
+			}
+
+			return f;
+		}
+		#endregion
+		public string FontFaceString
+		{
+			get {
+				string tmp = Name;
+				if (Style != FontStyle.Normal)
+					tmp += "," + Style.ToString ();
+				if (Flags != FontFlag.None)
+					tmp += "," + Flags.ToString ();
+				return tmp;
+			}
+		}
+		public override string ToString()
+		{
+			return string.Format("{0},{1}", FontFaceString, _size);
+		}
+
+		public static object Parse(string s)
+		{
+			return (Font)s;
+		}
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontExtents.cs b/OTKCrow/OpenGL/GLBackend/Font/FontExtents.cs
new file mode 100644
index 00000000..fba77cb0
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontExtents.cs
@@ -0,0 +1,39 @@
+using System;
+
+namespace Crow.GLBackend
+{
+	public class FontExtents
+	{
+		double ascent;
+		double descent;
+		double height;
+		double maxXAdvance;
+		double maxYAdvance;
+
+		public double Ascent {
+			get { return ascent; }
+			set { ascent = value; }
+		}
+		public double Descent {
+			get { return descent; }
+			set { descent = value; }
+		}
+		public double Height {
+			get { return height; }
+			set { height = value; }
+		}
+		public double MaxXAdvance {
+			get { return maxXAdvance; }
+			set { maxXAdvance = value; }
+		}
+		public double MaxYAdvance {
+			get { return maxYAdvance; }
+			set { maxYAdvance = value; }
+		}
+
+		public FontExtents ()
+		{
+		}
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontFace.cs b/OTKCrow/OpenGL/GLBackend/Font/FontFace.cs
new file mode 100644
index 00000000..88bdaa15
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontFace.cs
@@ -0,0 +1,307 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using SharpFont;
+using System.Diagnostics;
+using System.Linq;
+using System.Text.RegularExpressions;
+using OpenTK.Graphics.OpenGL;
+
+namespace Crow.GLBackend
+{
+	public class FontFace
+	{
+		public static int testTexture;
+
+		static List<FontFace> fonts = new List<FontFace>();
+		public Dictionary<uint,Dictionary<uint, glGlyph>> glyphesCache = new Dictionary<uint, Dictionary<uint, glGlyph>>();
+
+		#region CTOR
+		public FontFace ()
+		{
+		}
+		#endregion
+
+		string _name = "droid";
+		string _family;
+		string _fontPath;
+		public FontExtents originalFontExtents;
+
+		FontStyle _style = FontStyle.Normal;
+		FontFlag _flags = FontFlag.None;
+
+		public string Name {
+			get { return _name; }
+			set { _name = value; }
+		}
+		public string Family {
+			get {return _family;}
+			set {_family = value;}
+		}
+		public string FontPath {
+			get { return _fontPath; }
+			set { _fontPath = value; }
+		}
+			
+		public FontStyle Style {
+			get { return _style; }
+			set { _style = value; }
+		}
+		public FontFlag Flags {
+			get { return _flags; }
+			set { _flags = value; }
+		}
+
+		public FontSlant Slant {
+			get{ 
+				if ((Style & FontStyle.Italic) == FontStyle.Italic)
+					return FontSlant.Italic;
+				if ((Style & FontStyle.Oblique) == FontStyle.Oblique)
+					return FontSlant.Oblique;
+				return FontSlant.Normal;
+			}
+		}
+		public FontWeight Wheight {
+			get{ return (Style & FontStyle.Bold) == FontStyle.Bold ? FontWeight.Bold : FontWeight.Normal; }
+		}
+
+		public static FontFace SearchFont(Font font)
+		{
+			FontFace[] tmp = fonts.Where (f =>
+				(string.Compare(f.Name,font.Name,true)==0 && f.Style == font.Style)).ToArray();
+
+			tmp = tmp.Where (f => (f.Flags & font.Flags) == font.Flags).OrderBy(f=>f.Flags).ToArray();
+
+			return tmp.FirstOrDefault();
+		}
+
+		public static void BuildFontsList(string _path)
+		{
+			DirectoryInfo dir = new DirectoryInfo (_path);
+			try
+			{
+				using (Library lib = new Library())
+				{
+					foreach (FileInfo f in dir.GetFiles("*.ttf",SearchOption.AllDirectories)) {
+						try {
+
+							Face face = new Face(lib,f.FullName, 0);
+							FontFace font = new FontFace();
+
+							//TODO:test if font is scalable, if not=>continue
+							font.Family = face.FamilyName;
+							font.FontPath = f.FullName;
+											
+							//check if no particularities hidde in family name
+							font.Name = "";
+							string[] styles = face.FamilyName.Split(' ');
+							for (int i = 0; i < styles.Length; i++) {
+								FontFlag fl;
+								FontStyle fs;
+								if (Enum.TryParse<FontFlag> (styles [i], true, out fl))
+									font.Flags |= fl;
+								else if (Enum.TryParse<FontStyle> (styles [i], true, out fs))
+									font.Style |= fs;
+								else//add only unknown word to create shortest possible name
+									font.Name += styles[i] + " ";
+							}
+							font.Name = font.Name.Trim();
+
+							styles = face.StyleName.Split(' ');
+							for (int i = 0; i < styles.Length; i++) {
+								switch (styles[i].ToLowerInvariant()) {
+								case "regular":
+								case "normal":
+									break;
+								case "bold":
+									font.Style |= FontStyle.Bold;
+									break;
+								case "italic":
+									font.Style |= FontStyle.Italic;
+									break;
+								case "oblique":
+									font.Style |= FontStyle.Oblique;
+									break;
+								default:
+									FontFlag fl;
+									if (Enum.TryParse<FontFlag>(styles[i], true, out fl))
+										font.Flags |= fl;
+									break;
+								}
+
+							}								
+							fonts.Add(font);
+							face.Dispose();
+						}
+						catch (FreeTypeException ee)
+						{ Console.Write(ee.Error.ToString() + ": " + f.FullName); }
+					}
+				}
+			}
+			catch (FreeTypeException e)
+			{ Console.Write(e.Error.ToString()); }
+		}
+
+		const int FONT_TEX_SIZE = 1024;
+
+		public void buildGlyphesTextures(uint activeSize, uint startChar, uint endChar){
+			try
+			{
+				using (Library lib = new Library())
+				{
+					Face face = new Face(lib,_fontPath, 0);
+
+					face.SetPixelSizes(0,activeSize);
+
+					//face.SetCharSize(0, 32 * 64, 0, 96);
+
+					originalFontExtents = new FontExtents();
+					originalFontExtents.Ascent = face.Size.Metrics.Ascender >> 6;
+					originalFontExtents.Descent = face.Size.Metrics.Descender >> 6;
+					originalFontExtents.Height = face.Size.Metrics.Height >> 6;
+					originalFontExtents.MaxXAdvance = face.Size.Metrics.MaxAdvance >> 6;
+					originalFontExtents.MaxYAdvance = face.MaxAdvanceHeight >> 6;
+
+					if (!glyphesCache.ContainsKey(activeSize))
+						glyphesCache [activeSize] = new Dictionary<uint, glGlyph>();
+
+					buildTexture(ref face,activeSize,startChar,endChar);
+
+					face.Dispose();
+				}
+			}
+			catch (FreeTypeException e)
+			{ Console.Write(e.Error.ToString()); }
+		}
+			
+		void setTextureData(int tex, byte[] _buffer)
+		{
+			GL.BindTexture(TextureTarget.Texture2D, tex);
+			GL.TexImage2D(TextureTarget.Texture2D,0,
+				PixelInternalFormat.R8, FONT_TEX_SIZE, FONT_TEX_SIZE,0,
+				OpenTK.Graphics.OpenGL.PixelFormat.Red, PixelType.UnsignedByte,_buffer);
+
+			GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Nearest);
+			GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
+			GL.BindTexture(TextureTarget.Texture2D, 0);
+
+			byte[] pixels = new byte[FONT_TEX_SIZE * FONT_TEX_SIZE * 4];
+
+			for (int x = 0; x < FONT_TEX_SIZE; x++)
+			{
+				for (int y = 0; y < FONT_TEX_SIZE; y++)
+				{
+					byte v = _buffer[x + y * FONT_TEX_SIZE];
+
+					pixels[(x + y * FONT_TEX_SIZE) * 4] = v;
+					pixels[(x + y * FONT_TEX_SIZE) * 4 + 1] = v;
+					pixels[(x + y * FONT_TEX_SIZE) * 4 + 2] = v;
+					pixels[(x + y * FONT_TEX_SIZE) * 4 + 3] = 255;
+				}
+			}
+			System.Drawing.Bitmap bmp;
+			unsafe
+			{
+				bmp = new System.Drawing.Bitmap(FONT_TEX_SIZE, FONT_TEX_SIZE, System.Drawing.Imaging.PixelFormat.Format32bppArgb);//, ptr);
+				System.Drawing.Imaging.BitmapData data = bmp.LockBits(new System.Drawing.Rectangle(0, 0, FONT_TEX_SIZE, FONT_TEX_SIZE),
+					System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+
+				System.Runtime.InteropServices.Marshal.Copy(pixels, 0, data.Scan0, FONT_TEX_SIZE * FONT_TEX_SIZE * 4);
+
+				bmp.UnlockBits(data);
+			}
+
+			bmp.Save(@"/home/jp/fonttex.png");
+
+
+		}
+
+
+		void buildTexture(ref Face face,uint activeSize, uint startChar, uint endChar){
+			int texPage = GL.GenTexture ();
+			byte[] buffer = new byte[FONT_TEX_SIZE*FONT_TEX_SIZE];
+
+			int penX = 0,
+				penY = 0;
+
+			int maxBmpHeight = 0;
+
+			for(uint c=startChar;c<endChar;c++)
+			{
+				uint glyphIndex = face.GetCharIndex((uint)c);
+				if (glyphIndex==0)
+					continue;
+				//face.LoadChar((uint)c, LoadFlags.Render, LoadTarget.Normal);
+				face.LoadGlyph(glyphIndex, LoadFlags.Render, LoadTarget.Normal);
+				testTexture = texPage;
+
+				GlyphSlot slot = face.Glyph;
+				FTBitmap bmp = slot.Bitmap;
+
+				if (penX+bmp.Width > FONT_TEX_SIZE){
+					penX = 0;
+					penY += maxBmpHeight;
+					maxBmpHeight = 0;
+				}
+
+				if (penY+bmp.Rows > FONT_TEX_SIZE)
+				{
+					//glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+					setTextureData (texPage, buffer);
+					texPage = GL.GenTexture ();
+					buffer = new byte[FONT_TEX_SIZE*FONT_TEX_SIZE];
+					penX = 0;
+					penY = 0;
+					maxBmpHeight = 0;
+				}
+
+				Rectangle tmp = new Rectangle (
+					penX,
+					penY,
+					bmp.Width, bmp.Rows);
+
+				for(int y=0; y<bmp.Rows; y++)
+				{
+					for(int x=0; x<bmp.Width; x++)
+						buffer[ penX + x + (penY + y)* FONT_TEX_SIZE ] =
+							bmp.BufferData[x + y * bmp.Width];
+				}
+				glyphesCache [activeSize][c] = new glGlyph() 
+				{
+					texId = texPage,
+					texX = (float)penX / FONT_TEX_SIZE,
+					texY = (float)penY / FONT_TEX_SIZE,
+					texWidth = (float)(bmp.Width) / FONT_TEX_SIZE,
+					texHeight = (float)(bmp.Rows)  / FONT_TEX_SIZE,
+
+//					texCoord = new Rectangle(
+//						penX / FONT_TEX_SIZE,
+//						penY / FONT_TEX_SIZE,
+//						(bmp.Width) / FONT_TEX_SIZE,
+//						(bmp.Rows)  / FONT_TEX_SIZE),
+					dims = new Size(bmp.Width , bmp.Rows),
+					bmpLeft = slot.BitmapLeft, bmpTop = slot.BitmapTop, advanceX = slot.Advance.X>>6,advanceY = slot.Advance.Y>>6
+				};
+
+				if (bmp.Rows>maxBmpHeight)
+					maxBmpHeight=bmp.Rows;
+
+				penX += bmp.Width;
+			}
+
+			if (penX>0 || penY>0)
+				setTextureData(texPage, buffer);
+		}
+
+		public override string ToString()
+		{
+			string tmp = Name;
+			if (Style != FontStyle.Normal)
+				tmp += "," + Style.ToString ();
+			if (Flags != FontFlag.None)
+				tmp += "," + Flags.ToString ();
+			return tmp;
+		}
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontFlag.cs b/OTKCrow/OpenGL/GLBackend/Font/FontFlag.cs
new file mode 100644
index 00000000..f748ec17
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontFlag.cs
@@ -0,0 +1,18 @@
+using System;
+
+namespace Crow
+{
+	[Flags]
+	public enum FontFlag
+	{
+		None = 0x00,
+		Sans = 0x01,
+		Serif = 0x02,
+		Mono = 0x04,
+		Condensed = 0x08,
+		Medium = 0x16,
+		Book = 0x32,
+		ExtraLight = 0x64
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontShader (copier).cs b/OTKCrow/OpenGL/GLBackend/Font/FontShader (copier).cs
new file mode 100644
index 00000000..2a4c1571
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontShader (copier).cs
@@ -0,0 +1,146 @@
+using System;
+using OpenTK.Graphics.OpenGL;
+
+namespace Crow.GLBackend
+{
+	public class FontShader : Shader
+	{
+		public FontShader ()
+		{
+			vertSource = @"
+				#version 130
+
+				precision highp float;
+
+				uniform mat4 projection_matrix;
+				uniform mat4 modelview_matrix;
+
+				in vec2 in_position;
+				in vec2 in_tex;
+				out vec2 texCoord;
+
+
+				void main(void)
+				{
+					texCoord = in_tex;
+					gl_Position = projection_matrix * modelview_matrix * vec4(in_position,0, 1);
+				}";
+
+			fragSource = @"
+				#version 130
+				precision highp float;
+
+				uniform vec4 color;
+				uniform sampler2D tex;
+				uniform sampler2D stencil;
+				uniform vec2 resolution;
+
+				in vec2 texCoord;
+				out vec4 out_frag_color;
+
+				vec3
+				energy_distribution( vec4 previous, vec4 current, vec4 next )
+				{
+					float primary = 1.0/3.0;
+					float secondary = 1.0/3.0;
+					float tertiary = 0.0;
+
+					// Energy distribution as explained on:
+					// http://www.grc.com/freeandclear.htm
+					//
+					// .. v..
+					// RGB RGB RGB
+					// previous.g + previous.b + current.r + current.g + current.b
+					//
+					// . .v. .
+					// RGB RGB RGB
+					// previous.b + current.r + current.g + current.b + next.r
+					//
+					// ..v ..
+					// RGB RGB RGB
+					// current.r + current.g + current.b + next.r + next.g
+
+					float r =
+					tertiary * previous.g +
+					secondary * previous.b +
+					primary * current.r +
+					secondary * current.g +
+					tertiary * current.b;
+
+					float g =
+					tertiary * previous.b +
+					secondary * current.r +
+					primary * current.g +
+					secondary * current.b +
+					tertiary * next.r;
+
+					float b =
+					tertiary * current.r +
+					secondary * current.g +
+					primary * current.b +
+					secondary * next.r +
+					tertiary * next.g;
+
+					return vec3(r,g,b);
+				}
+				void main(void)
+				{
+				    float a = texture( tex, texCoord).r;
+
+				    if (a==0.)
+				        discard;
+
+					float x = gl_FragCoord.x / resolution.x;
+				    float s = mod(x,x);
+
+					vec4 current = color * texture( tex, texCoord).r;
+					vec4 previous = color * texture( tex, texCoord + vec2(-x,0)).r;
+					vec4 next = color * texture( tex, texCoord + vec2(x,0)).r;
+
+					float r = current.r;
+					float g = current.g;
+					float b = current.b;
+
+					if( s <= 0.333 )
+					{
+						float z = s/0.333;
+						r = mix(current.r, previous.b, z);
+						g = mix(current.g, current.r, z);
+						b = mix(current.b, current.g, z);
+					}
+					else if( s <= 0.666 )
+					{
+						float z = (s-0.33)/0.333;
+						r = mix(previous.b, previous.g, z);
+						g = mix(current.r, previous.b, z);
+						b = mix(current.g, current.r, z);
+					}
+					else if( s < 1.0 )
+					{
+						float z = (s-0.66)/0.334;
+						r = mix(previous.g, previous.r, z);
+						g = mix(previous.b, previous.g, z);
+						b = mix(current.r, previous.b, z);
+					}
+
+
+					out_frag_color = vec4(energy_distribution(previous, current, next),1);					
+				}";
+
+			Compile ();
+
+		}
+
+		protected override void BindVertexAttributes ()
+		{
+			base.BindVertexAttributes ();
+			GL.BindAttribLocation(pgmId, 1, "in_tex");
+		}
+		protected override void BindSamplesSlots ()
+		{
+			GL.Uniform1(GL.GetUniformLocation (pgmId, "tex"),0);
+			//GL.Uniform1(GL.GetUniformLocation (pgmId, "stencil"),1);
+		}
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontShader.cs b/OTKCrow/OpenGL/GLBackend/Font/FontShader.cs
new file mode 100644
index 00000000..6086f7b9
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontShader.cs
@@ -0,0 +1,128 @@
+using System;
+using OpenTK.Graphics.OpenGL;
+using OpenTK;
+
+namespace Crow.GLBackend
+{
+	public class FontShader : Shader
+	{
+		protected int coef1Location, coef2Location, coef3Location, coefALocation, resolutionLoc;
+		public float coef1 {
+			set {GL.Uniform1 (coef1Location, value);}
+		}
+		public float coef2 {
+			set {GL.Uniform1 (coef2Location, value);}
+		}
+		public float coef3 {
+			set {GL.Uniform1 (coef3Location, value);}
+		}
+		public float coefA {
+			set {GL.Uniform1 (coefALocation, value);}
+		}
+		public Vector2 Resolution {
+			set { GL.Uniform2 (resolutionLoc, value); }
+		}
+		public FontShader ()
+		{
+			vertSource = @"
+				#version 130
+
+				precision highp float;
+
+				uniform mat4 projection_matrix;
+				uniform mat4 modelview_matrix;
+
+				in vec2 in_position;
+				in vec2 in_tex;
+				out vec2 texCoord;
+
+
+				void main(void)
+				{
+					texCoord = in_tex;
+					gl_Position = projection_matrix * modelview_matrix * vec4(in_position,0, 1);
+				}";
+
+			fragSource = @"
+				#version 130
+				precision highp float;
+
+				uniform vec4 color;
+				uniform sampler2D tex;
+				uniform sampler2D backTex;
+				uniform sampler2D stencil;
+				uniform vec2 resolution;
+				uniform float coef1;
+				uniform float coef2;
+				uniform float coef3;
+				uniform float coefA;
+
+
+				in vec2 texCoord;
+				out vec4 out_frag_color;
+
+				void main(void)
+				{
+					vec2 uv		= gl_FragCoord.xy / resolution;
+					vec2 pix	= 1.0 / resolution;
+
+				    float	c		= texture( tex, texCoord).r;
+					vec4	bc		= texture( backTex, uv);
+
+					vec4 diff	= bc - color;
+
+				    if (c==0.)
+				        discard;					
+
+//					if (c > 0.75)
+//						out_frag_color = vec4(color.rgb,c);
+//					else{
+						float p = texture( tex, texCoord + vec2(-pix.x,0)).r;
+						float n = texture( tex, texCoord + vec2( pix.x,0)).r;
+						
+						vec3 current = vec3(0,0,0);
+					
+						float a = n - c;
+						current.r += coef1 * a * diff.r;
+						current.g += coef2 * a * diff.g;
+						current.b += coef3 * a * diff.b;
+						//current.a *= coefA * a * diff.a;
+					
+						a = p - c;
+						current.r += coef3 * a * diff.r;
+						current.g += coef2 * a * diff.g;
+						current.b += coef1 * a * diff.b;
+						//current.a *= coefA * a * diff.a;
+					
+						out_frag_color = vec4(color.rgb+current,c*coefA);
+
+//					}					
+				}";
+
+			Compile ();
+
+		}
+		protected override void GetUniformLocations ()
+		{
+			base.GetUniformLocations ();
+
+			resolutionLoc = GL.GetUniformLocation (pgmId, "resolution");
+			coef1Location = GL.GetUniformLocation (pgmId, "coef1");
+			coef2Location = GL.GetUniformLocation (pgmId, "coef2");
+			coef3Location = GL.GetUniformLocation (pgmId, "coef3");
+			coefALocation = GL.GetUniformLocation (pgmId, "coefA");
+		}
+		protected override void BindVertexAttributes ()
+		{
+			base.BindVertexAttributes ();
+			GL.BindAttribLocation(pgmId, 1, "in_tex");
+		}
+		protected override void BindSamplesSlots ()
+		{
+			GL.Uniform1(GL.GetUniformLocation (pgmId, "tex"),0);
+			GL.Uniform1(GL.GetUniformLocation (pgmId, "backTex"),1);
+			//GL.Uniform1(GL.GetUniformLocation (pgmId, "stencil"),1);
+		}
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontSlant.cs b/OTKCrow/OpenGL/GLBackend/Font/FontSlant.cs
new file mode 100644
index 00000000..8bfd5a6a
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontSlant.cs
@@ -0,0 +1,42 @@
+//
+// Mono.Cairo.FontSlant.cs
+//
+// Authors:
+//   Duncan Mak (duncan@ximian.com)
+//   Hisham Mardam Bey (hisham.mardambey@gmail.com)
+//
+// (C) Ximian, Inc. 2003
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+
+namespace Crow.GLBackend
+{
+	[Serializable]
+	public enum FontSlant
+	{
+		Normal,
+		Italic,
+		Oblique
+	}
+}
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontStyle.cs b/OTKCrow/OpenGL/GLBackend/Font/FontStyle.cs
new file mode 100644
index 00000000..eed35057
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontStyle.cs
@@ -0,0 +1,15 @@
+using System;
+
+namespace Crow
+{
+	[Flags]
+	public enum FontStyle
+	{
+		Normal = 0x00,
+		Bold = 0x01,
+		Italic = 0x02,
+		Oblique = 0x4,
+		Underlined = 0x8
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/FontWeight.cs b/OTKCrow/OpenGL/GLBackend/Font/FontWeight.cs
new file mode 100644
index 00000000..d361378c
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/FontWeight.cs
@@ -0,0 +1,41 @@
+//
+// Mono.Cairo.FontWeight.cs
+//
+// Authors:
+//   Duncan Mak (duncan@ximian.com)
+//   Hisham Mardam Bey (hisham.mardambey@gmail.com)
+//
+// (C) Ximian, Inc. 2003
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+
+namespace Crow.GLBackend
+{
+	[Serializable]
+	public enum FontWeight
+	{
+		Normal,
+		Bold,
+	}
+}
diff --git a/OTKCrow/OpenGL/GLBackend/Font/TextExtents.cs b/OTKCrow/OpenGL/GLBackend/Font/TextExtents.cs
new file mode 100644
index 00000000..a0bc6440
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/TextExtents.cs
@@ -0,0 +1,98 @@
+//
+// Mono.Cairo.TextExtents.cs
+//
+// Authors:
+//   Duncan Mak (duncan@ximian.com)
+//   Hisham Mardam Bey (hisham.mardambey@gmail.com)
+//
+// (C) Ximian, Inc. 2003
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace Crow.GLBackend
+{
+	[StructLayout (LayoutKind.Sequential)]
+	public struct TextExtents
+	{
+		double xbearing;
+		double ybearing;
+		double width;
+		double height;
+		double xadvance;
+		double yadvance;
+		
+		public double XBearing {
+			get { return xbearing; }
+			set { xbearing = value; }
+		}
+		
+		public double YBearing {
+			get { return ybearing; }
+			set { ybearing = value; }
+		}
+		
+		public double Width {
+			get { return width; }
+			set { width = value; }
+		}
+		
+		public double Height {
+			get { return height; }
+			set { height = value; }
+		}
+		
+		public double XAdvance {
+			get { return xadvance; }
+			set { xadvance = value; }
+		}
+		
+		public double YAdvance {
+			get { return yadvance; }
+			set { yadvance = value; }
+		}
+
+		public override bool Equals (object obj)
+		{
+			if (obj is TextExtents)
+				return this == (TextExtents)obj;
+			return false;
+		}
+
+		public override int GetHashCode ()
+		{
+			return (int)XBearing ^ (int)YBearing ^ (int)Width ^ (int)Height ^ (int)XAdvance ^ (int)YAdvance;
+		}
+
+		public static bool operator == (TextExtents extents, TextExtents other)
+		{
+			return extents.XBearing == other.XBearing && extents.YBearing == other.YBearing && extents.Width == other.Width && extents.Height == other.Height && extents.XAdvance == other.XAdvance && extents.YAdvance == other.YAdvance;
+		}
+
+		public static bool operator != (TextExtents extents, TextExtents other)
+		{
+			return !(extents == other);
+		}
+	}
+}
diff --git a/OTKCrow/OpenGL/GLBackend/Font/glFont.cs b/OTKCrow/OpenGL/GLBackend/Font/glFont.cs
new file mode 100644
index 00000000..059fca6a
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/glFont.cs
@@ -0,0 +1,90 @@
+using System;
+using SharpFont;
+using OpenTK.Graphics.OpenGL;
+using System.Collections.Generic;
+using System.IO;
+using System.Diagnostics;
+
+namespace Crow
+{
+	public class glFont
+	{
+		Dictionary<int, glGlyph> glyphs = new Dictionary<int,glGlyph>();
+
+		public static void dumpFontsDirectories(string _path)
+		{
+			List<string> stylesList = new List<string> ();
+			List<string> namesList = new List<string> ();
+			List<string> attribsList = new List<string> ();
+
+			DirectoryInfo dir = new DirectoryInfo (_path);
+			try
+			{
+				using (Library lib = new Library())
+				{
+					Console.WriteLine("FreeType version: " + lib.Version + "\n");
+
+					foreach (FileInfo f in dir.GetFiles("*.ttf",SearchOption.AllDirectories)) {
+						try {
+							
+							Face face = new Face(lib,f.FullName, 0);
+
+							Console.Write(System.IO.Path.GetFileNameWithoutExtension(f.Name) + " => ");
+							Console.WriteLine("{0} Faces:{1} Flags:{2}\nStyle:{3} StyleFlags:{4}\n",
+								face.FamilyName,
+								face.FaceCount,
+								face.FaceFlags,
+								face.StyleName,
+								face.StyleFlags);
+							string[] styles = face.StyleName.Split(' ');
+							foreach (string s in styles) {
+								if (stylesList.Contains(s))
+									continue;
+								stylesList.Add(s);
+							}
+
+							string[] names = face.FamilyName.Split(' ');
+							if (!namesList.Contains(names[0]))
+								namesList.Add(names[0]);
+							for (int i = 1; i < names.Length; i++) {
+								if (attribsList.Contains(names[i]))
+									continue;
+								attribsList.Add(names[i]);
+							}
+
+							face.Dispose();
+						}
+						catch (FreeTypeException ee)
+						{
+							Console.Write(ee.Error.ToString() + ": " + f.FullName);
+						}
+					}
+				}
+			}
+			catch (FreeTypeException e)
+			{
+				Console.Write(e.Error.ToString());
+			}
+			Console.Write ("Names => ");
+			foreach (string s in namesList) {
+				Console.Write (s + " ");
+			}
+			Console.Write ("\n\nAttrib => ");
+			foreach (string s in attribsList) {
+				Console.Write (s + " ");
+			}
+
+			Console.Write ("\n\nStyles => ");
+			foreach (string s in stylesList) {
+				Console.Write (s + " ");
+			}
+		}
+
+		public glFont (string _fontPath)
+		{
+
+		}
+
+	}
+}
+
diff --git a/OTKCrow/OpenGL/GLBackend/Font/glGlyph.cs b/OTKCrow/OpenGL/GLBackend/Font/glGlyph.cs
new file mode 100644
index 00000000..f0d15d36
--- /dev/null
+++ b/OTKCrow/OpenGL/GLBackend/Font/glGlyph.cs
@@ -0,0 +1,22 @@
+using System;
+
+namespace Crow
+{
+	public struct glGlyph
+	{
+		public int texId;
+		public Rectangle texCoord;
+		public float texX;
+		public float texY;
+		public float texWidth;
+		public float texHeight;
+		public Size dims;
+		public int bmpLeft;
+		public int bmpTop;
+		public long advanceX;
+		public long advanceY;
+
+
+	}
+}
+