path: root/NW4RTools/Util/NVDXT.cs

// This code is from BrawlLib:
// http://code.google.com/p/brawltools/source/browse/trunk/BrawlLib/Imaging/NVDXT.cs
// Modified by Treeki to work within NW4RTools.


/* This code was modified from the NVidia Texture Tools source.
 * http://code.google.com/p/nvidia-texture-tools/
 */

// Copyright NVIDIA Corporation 2007 -- Ignacio Castano <icastano@nvidia.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.Collections.Generic;
using System.Runtime.InteropServices;

namespace NW4RTools.Util {
	unsafe public static class NVDXT {
		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		unsafe public struct Vector2 {
			public float _x;
			public float _y;

			public Vector2(float x, float y) {
				_x = x;
				_y = y;
			}
			public Vector2(float s) {
				_x = s;
				_y = s;
			}

			public static Vector2 operator -(Vector2 v) {
				return new Vector2(-v._x, -v._y);
			}
			public static Vector2 operator +(Vector2 v1, Vector2 v2) {
				return new Vector2(v1._x + v2._x, v1._y + v2._y);
			}
			public static Vector2 operator -(Vector2 v1, Vector2 v2) {
				return new Vector2(v1._x - v2._x, v1._y - v2._y);
			}
			public static Vector2 operator -(Vector2 v1, float f) {
				return new Vector2(v1._x - f, v1._y - f);
			}
			public static Vector2 operator *(Vector2 v1, Vector2 v2) {
				return new Vector2(v1._x * v2._x, v1._y * v2._y);
			}
			public static Vector2 operator *(Vector2 v1, float s) {
				return new Vector2(v1._x * s, v1._y * s);
			}
			public static Vector2 operator *(float s, Vector2 v1) {
				return new Vector2(v1._x * s, v1._y * s);
			}
			public static Vector2 operator /(Vector2 v1, Vector2 v2) {
				return new Vector2(v1._x / v2._x, v1._y / v2._y);
			}
			public static Vector2 operator /(Vector2 v1, float s) {
				return new Vector2(v1._x / s, v1._y / s);
			}

			public static Vector2 operator +(Vector2 v1, Vector3 v2) {
				return new Vector2(v1._x + v2._x, v1._y + v2._y);
			}
			public static Vector2 operator +(Vector3 v1, Vector2 v2) {
				return new Vector2(v1._x + v2._x, v1._y + v2._y);
			}

			public static float Dot(Vector2 v1, Vector2 v2) {
				return (v1._x * v2._x) + (v1._y * v2._y);
			}
			public float Dot(Vector2 v) {
				return (_x * v._x) + (_y * v._y);
			}

			public static Vector2 Clamp(Vector2 v1, float min, float max) {
				v1.Clamp(min, max);
				return v1;
			}
			public void Clamp(float min, float max) {
				this.Max(min);
				this.Min(max);
			}

			public static Vector2 Min(Vector2 v1, Vector2 v2) {
				return new Vector2(Math.Min(v1._x, v2._x), Math.Min(v1._y, v2._y));
			}
			public static Vector2 Min(Vector2 v1, float f) {
				return new Vector2(Math.Min(v1._x, f), Math.Min(v1._y, f));
			}
			public void Min(Vector2 v) {
				if (_x > v._x)
					_x = v._x;
				if (_y > v._y)
					_y = v._y;
			}
			public void Min(float f) {
				_x = Math.Min(_x, f);
				_y = Math.Min(_y, f);
			}

			public static Vector2 Max(Vector2 v1, Vector2 v2) {
				return new Vector2(Math.Max(v1._x, v2._x), Math.Max(v1._y, v2._y));
			}
			public static Vector2 Max(Vector2 v1, float f) {
				return new Vector2(Math.Max(v1._x, f), Math.Max(v1._y, f));
			}
			public void Max(Vector2 v) {
				if (_x < v._x)
					_x = v._x;
				if (_y < v._y)
					_y = v._y;
			}
			public void Max(float f) {
				_x = Math.Max(_x, f);
				_y = Math.Max(_y, f);
			}

			public float DistanceTo(Vector2 v) {
				Vector2 v1 = this - v;
				return Vector2.Dot(v1, v1);
			}
			public static Vector2 Lerp(Vector2 v1, Vector2 v2, float median) {
				return (v1 * median) + (v2 * (1.0f - median));
			}

			public static explicit operator Vector2(Vector3 v) {
				return new Vector2(v._x, v._y);
			}
			public static explicit operator Vector3(Vector2 v) {
				return new Vector3(v._x, v._y, 0.0f);
			}

			public static Vector2 Truncate(Vector2 v) {
				return new Vector2(v._x > 0.0f ? (float)Math.Floor(v._x) : (float)Math.Ceiling(v._x), v._y > 0.0f ? (float)Math.Floor(v._y) : (float)Math.Ceiling(v._y));
			}

			public override string ToString() {
				return String.Format("({0},{1})", _x, _y);
			}

			public bool Contained(Vector2 start, Vector2 end, float expansion) {
				return Contained(this, start, end, expansion);
			}
			public static bool Contained(Vector2 point, Vector2 start, Vector2 end, float expansion) {
				float* sPtr = (float*)&point;
				float* s1 = (float*)&start, s2 = (float*)&end;
				float* temp;
				for (int i = 0; i < 2; i++) {
					if (s1[i] > s2[i]) {
						temp = s1;
						s1 = s2;
						s2 = temp;
					}
					
					if ((sPtr[i] < (s1[i] - expansion)) || (sPtr[i] > (s2[i] + expansion)))
						return false;
				}
				return true;
			}

			public float TrueDistance(Vector2 p) {
				float lenX = Math.Abs(p._x - _x);
				float lenY = Math.Abs(p._y - _y);
				
				if (lenX == 0.0f)
					return lenY; else if (lenY == 0.0f)
					return lenX;
				else
					return (float)(lenX / Math.Cos(Math.Atan(lenY / lenX)));
			}
			
		}
		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		unsafe public struct Vector3 {
			public float _x;
			public float _y;
			public float _z;

			public Vector3(float x, float y, float z) {
				_x = x;
				_y = y;
				_z = z;
			}
			public Vector3(float s) {
				_x = s;
				_y = s;
				_z = s;
			}

			private const float _colorFactor = 1.0f / 255.0f;
			/*public static explicit operator Vector3(Color c) {
				return new Vector3(c.R * _colorFactor, c.G * _colorFactor, c.B * _colorFactor);
			}
			public static explicit operator Color(Vector3 v) {
				return Color.FromArgb((int)(v._x / _colorFactor), (int)(v._y / _colorFactor), (int)(v._z / _colorFactor));
			}*/

			public static Vector3 operator -(Vector3 v) {
				return new Vector3(-v._x, -v._y, -v._z);
			}
			public static Vector3 operator +(Vector3 v1, Vector3 v2) {
				return new Vector3(v1._x + v2._x, v1._y + v2._y, v1._z + v2._z);
			}
			public static Vector3 operator -(Vector3 v1, Vector3 v2) {
				return new Vector3(v1._x - v2._x, v1._y - v2._y, v1._z - v2._z);
			}
			public static Vector3 operator -(Vector3 v1, float f) {
				return new Vector3(v1._x - f, v1._y - f, v1._z - f);
			}
			public static Vector3 operator *(Vector3 v1, Vector3 v2) {
				return new Vector3(v1._x * v2._x, v1._y * v2._y, v1._z * v2._z);
			}
			public static Vector3 operator *(Vector3 v1, float s) {
				return new Vector3(v1._x * s, v1._y * s, v1._z * s);
			}
			public static Vector3 operator *(float s, Vector3 v1) {
				return new Vector3(v1._x * s, v1._y * s, v1._z * s);
			}
			public static Vector3 operator /(Vector3 v1, Vector3 v2) {
				return new Vector3(v1._x / v2._x, v1._y / v2._y, v1._z / v2._z);
			}
			public static Vector3 operator /(Vector3 v1, float s) {
				return new Vector3(v1._x / s, v1._y / s, v1._z / s);
			}

			public static bool operator ==(Vector3 v1, Vector3 v2) {
				return (v1._x == v2._x) && (v1._y == v2._y) && (v1._z == v2._z);
			}
			public static bool operator !=(Vector3 v1, Vector3 v2) {
				return (v1._x != v2._x) || (v1._y != v2._y) || (v1._z != v2._z);
			}

			public void Add(Vector3* v) {
				_x += v->_x;
				_y += v->_y;
				_z += v->_z;
			}
			public void Add(float v) {
				_x += v;
				_y += v;
				_z += v;
			}
			public void Sub(Vector3* v) {
				_x -= v->_x;
				_y -= v->_y;
				_z -= v->_z;
			}
			public void Sub(float v) {
				_x -= v;
				_y -= v;
				_z -= v;
			}
			public void Multiply(Vector3* v) {
				_x *= v->_x;
				_y *= v->_y;
				_z *= v->_z;
			}
			public void Multiply(float v) {
				_x *= v;
				_y *= v;
				_z *= v;
			}

			public static float* Mult(float* v1, float* v2) {
				v1[0] = v1[0] * v2[0];
				v1[1] = v1[1] * v2[1];
				v1[2] = v1[2] * v2[2];
				return v1;
			}
			public static float* Mult(float* v1, float v2) {
				v1[0] = v1[0] * v2;
				v1[1] = v1[1] * v2;
				v1[2] = v1[2] * v2;
				return v1;
			}
			public static float* Add(float* v1, float* v2) {
				v1[0] = v1[0] + v2[0];
				v1[1] = v1[1] + v2[1];
				v1[2] = v1[2] + v2[2];
				return v1;
			}
			public static float* Add(float* v1, float v2) {
				v1[0] = v1[0] + v2;
				v1[1] = v1[1] + v2;
				v1[2] = v1[2] + v2;
				return v1;
			}
			public static float* Sub(float* v1, float* v2) {
				v1[0] = v1[0] - v2[0];
				v1[1] = v1[1] - v2[1];
				v1[2] = v1[2] - v2[2];
				return v1;
			}
			public static float* Sub(float* v1, float v2) {
				v1[0] = v1[0] - v2;
				v1[1] = v1[1] - v2;
				v1[2] = v1[2] - v2;
				return v1;
			}

			//public static float* Mult(float* v1, float* v2) { v1[0] = v1[0] * v2[0]; v1[1] = v1[1] * v2[1]; v1[2] = v1[2] * v2[2]; return v1; }
			//public static float* Mult(float* v1, float v2) { v1[0] *= v2; v1[1] *= v2; v1[2] *= v2; return v1; }
			//public static float* Add(float* v1, float* v2) { v1[0] += v2[0]; v1[1] += v2[1]; v1[2] += v2[2]; return v1; }
			//public static float* Add(float* v1, float v2) { v1[0] += v2; v1[1] += v2; v1[2] += v2; return v1; }
			//public static float* Sub(float* v1, float* v2) { v1[0] -= v2[0]; v1[1] -= v2[1]; v1[2] -= v2[2]; return v1; }
			//public static float* Sub(float* v1, float v2) { v1[0] -= v2; v1[1] -= v2; v1[2] -= v2; return v1; }

			public static float Dot(Vector3 v1, Vector3 v2) {
				return (v1._x * v2._x) + (v1._y * v2._y) + (v1._z * v2._z);
			}
			public float Dot(Vector3 v) {
				return (_x * v._x) + (_y * v._y) + (_z * v._z);
			}
			public float Dot(Vector3* v) {
				return (_x * v->_x) + (_y * v->_y) + (_z * v->_z);
			}
			public float Dot() {
				return (_x * _x) + (_y * _y) + (_z * _z);
			}

			public static Vector3 Clamp(Vector3 v1, float min, float max) {
				v1.Clamp(min, max);
				return v1;
			}
			public void Clamp(float min, float max) {
				this.Max(min);
				this.Min(max);
			}

			public static Vector3 Min(Vector3 v1, Vector3 v2) {
				return new Vector3(Math.Min(v1._x, v2._x), Math.Min(v1._y, v2._y), Math.Min(v1._z, v2._z));
			}
			public static Vector3 Min(Vector3 v1, float f) {
				return new Vector3(Math.Min(v1._x, f), Math.Min(v1._y, f), Math.Min(v1._z, f));
			}
			public void Min(Vector3 v) {
				_x = Math.Min(_x, v._x);
				_y = Math.Min(_y, v._y);
				_z = Math.Min(_z, v._z);
			}
			public void Min(Vector3* v) {
				if (v->_x < _x)
					_x = v->_x;
				if (v->_y < _y)
					_y = v->_y;
				if (v->_z < _z)
					_z = v->_z;
			}
			public void Min(float f) {
				_x = Math.Min(_x, f);
				_y = Math.Min(_y, f);
				_z = Math.Min(_z, f);
			}

			public static Vector3 Max(Vector3 v1, Vector3 v2) {
				return new Vector3(Math.Max(v1._x, v2._x), Math.Max(v1._y, v2._y), Math.Max(v1._z, v2._z));
			}
			public static Vector3 Max(Vector3 v1, Vector3* v2) {
				return new Vector3(Math.Max(v1._x, v2->_x), Math.Max(v1._y, v2->_y), Math.Max(v1._z, v2->_z));
			}
			public static Vector3 Max(Vector3 v1, float f) {
				return new Vector3(Math.Max(v1._x, f), Math.Max(v1._y, f), Math.Max(v1._z, f));
			}
			public void Max(Vector3 v) {
				_x = Math.Max(_x, v._x);
				_y = Math.Max(_y, v._y);
				_z = Math.Max(_z, v._z);
			}
			public void Max(Vector3* v) {
				if (v->_x > _x)
					_x = v->_x;
				if (v->_y > _y)
					_y = v->_y;
				if (v->_z > _z)
					_z = v->_z;
			}
			public void Max(float f) {
				_x = Math.Max(_x, f);
				_y = Math.Max(_y, f);
				_z = Math.Max(_z, f);
			}

			public float DistanceTo(Vector3 v) {
				return (v - this).Dot();
			}
			public static Vector3 Lerp(Vector3 v1, Vector3 v2, float median) {
				return (v1 * (1.0f - median)) + (v2 * median);
			}
			public static Vector3 Floor(Vector3 v) {
				return new Vector3((int)v._x, (int)v._y, (int)v._z);
			}

			public Vector3 Cross(Vector3 v) {
				return new Vector3(_y * v._z - v._y * _z, _z * v._x - v._z * _x, _x * v._y - v._x * _y);
			}

			public static Vector3 Truncate(Vector3 v) {
				return new Vector3(v._x > 0.0f ? (float)Math.Floor(v._x) : (float)Math.Ceiling(v._x), v._y > 0.0f ? (float)Math.Floor(v._y) : (float)Math.Ceiling(v._z), v._z > 0.0f ? (float)Math.Floor(v._z) : (float)Math.Ceiling(v._z));
			}

			public override string ToString() {
				return String.Format("({0},{1},{2})", _x, _y, _z);
			}

			public bool Contained(Vector3 start, Vector3 end, float expansion) {
				return Contained(this, start, end, expansion);
			}
			unsafe public static bool Contained(Vector3 point, Vector3 start, Vector3 end, float expansion) {
				float* sPtr = (float*)&point;
				float* s1 = (float*)&start, s2 = (float*)&end;
				float* temp;
				for (int i = 0; i < 3; i++) {
					if (s1[i] > s2[i]) {
						temp = s1;
						s1 = s2;
						s2 = temp;
					}
					
					if ((sPtr[i] < (s1[i] - expansion)) || (sPtr[i] > (s2[i] + expansion)))
						return false;
				}
				return true;
			}

			public static Vector3 IntersectZ(Vector3 ray1, Vector3 ray2, float z) {
				float a = ray2._z - ray1._z;
				
				float tanX = (ray1._y - ray2._y) / a;
				float tanY = (ray2._x - ray1._x) / a;
				
				a = z - ray1._z;
				return new Vector3(tanY * a + ray1._x, -tanX * a + ray1._y, z);
			}

			public float TrueDistance(Vector3 p) {
				return (float)Math.Sqrt((p - this).Dot());
			}
			public float TrueDistance() {
				return (float)Math.Sqrt(Dot());
			}

			public Vector3 Normalize() {
				return this / TrueDistance();
			}
			public Vector3 Normalize(Vector3 origin) {
				return (this - origin).Normalize();
			}

			public Vector3 GetAngles() {
				return new Vector3((float)Math.Atan2(_y, -_z), (float)Math.Atan2(-_z, _x), (float)Math.Atan2(_y, _x));
			}
			public Vector3 GetAngles(Vector3 origin) {
				return (this - origin).GetAngles();
			}

			public Vector3 LookatAngles() {
				return new Vector3((float)Math.Atan2(_y, Math.Sqrt(_x * _x + _z * _z)), (float)Math.Atan2(-_x, -_z), 0.0f);
			}
			public Vector3 LookatAngles(Vector3 origin) {
				return (this - origin).LookatAngles();
			}

			public float AngleX() {
				return (float)Math.Atan2(_y, -_z);
			}
			public float AngleY() {
				return (float)Math.Atan2(-_z, _x);
			}
			public float AngleZ() {
				return (float)Math.Atan2(_y, _x);
			}

			public override int GetHashCode() {
				fixed (Vector3* p = &this) {
					int* p2 = (int*)p;
					return p2[0] ^ p2[1] ^ p2[2];
				}
			}
			public override bool Equals(object obj) {
				if (obj is Vector3)
					return this == (Vector3)obj;
				return false;
			}
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		unsafe public struct ARGBPixel {
			private const float ColorFactor = 1.0f / 255.0f;

			public byte B, G, R, A;

			public ARGBPixel(byte a, byte r, byte g, byte b) {
				A = a;
				R = r;
				G = g;
				B = b;
			}
			public ARGBPixel(byte intensity) {
				A = 255;
				R = intensity;
				G = intensity;
				B = intensity;
			}

			/*public int DistanceTo(Color c) {
				int val = A - c.A;
				int dist = val * val;
				val = R - c.R;
				dist += val * val;
				val = G - c.G;
				dist += val * val;
				val = B - c.B;
				dist += val * val;
				return dist;
			}*/
			public int DistanceTo(ARGBPixel p) {
				int val = A - p.A;
				int dist = val * val;
				val = R - p.R;
				dist += val * val;
				val = G - p.G;
				dist += val * val;
				val = B - p.B;
				return dist + val;
			}
			public float Luminance() {
				return (0.299f * R) + (0.587f * G) + (0.114f * B);
			}
			public bool IsGreyscale() {
				return (R == G) && (G == B);
			}
			public int Greyscale() {
				return (R + G + B) / 3;
			}

			public static explicit operator ARGBPixel(int val) {
				return *((ARGBPixel*)&val);
			}
			public static explicit operator int(ARGBPixel p) {
				return *((int*)&p);
			}
			public static explicit operator ARGBPixel(uint val) {
				return *((ARGBPixel*)&val);
			}
			public static explicit operator uint(ARGBPixel p) {
				return *((uint*)&p);
			}
			/*public static explicit operator ARGBPixel(Color val) {
				return (ARGBPixel)val.ToArgb();
			}
			public static explicit operator Color(ARGBPixel p) {
				return Color.FromArgb((int)p);
			}*/
			public static explicit operator Vector3(ARGBPixel p) {
				return new Vector3(p.R * ColorFactor, p.G * ColorFactor, p.B * ColorFactor);
			}

			public ARGBPixel Min(ARGBPixel p) {
				return new ARGBPixel(Math.Min(A, p.A), Math.Min(R, p.R), Math.Min(G, p.G), Math.Min(B, p.B));
			}
			public ARGBPixel Max(ARGBPixel p) {
				return new ARGBPixel(Math.Max(A, p.A), Math.Max(R, p.R), Math.Max(G, p.G), Math.Max(B, p.B));
			}

			public static bool operator ==(ARGBPixel p1, ARGBPixel p2) {
				return *((uint*)(&p1)) == *((uint*)(&p2));
			}
			public static bool operator !=(ARGBPixel p1, ARGBPixel p2) {
				return *((uint*)(&p1)) != *((uint*)(&p2));
			}

			public override string ToString() {
				return String.Format("A:{0:X2} R:{1:X2} G:{2:X2} B:{3:X2}", A, R, G, B);
			}
			public override int GetHashCode() {
				return (int)this;
			}
			public override bool Equals(object obj) {
				if (obj is ARGBPixel)
					return (ARGBPixel)obj == this;
				return false;
			}

			unsafe internal ARGBPixel Inverse() {
				return new ARGBPixel(A, (byte)(255 - R), (byte)(255 - G), (byte)(255 - B));
			}
			unsafe internal ARGBPixel Lighten(int amount) {
				return new ARGBPixel(A, (byte)Math.Min(R + amount, 255), (byte)Math.Min(G + amount, 255), (byte)Math.Min(B + amount, 255));
			}
			unsafe internal ARGBPixel Darken(int amount) {
				return new ARGBPixel(A, (byte)Math.Max(R - amount, 0), (byte)Math.Max(G - amount, 0), (byte)Math.Max(B - amount, 0));
			}
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		unsafe public struct CMPRBlock {
			public UInt16 Color0, Color1;
			public UInt32 Lookup;
		}

		private static CMPRBlock compressDXT1(ARGBPixel* pBlock) {
			float* pointData = stackalloc float[48];
			Vector3* points = (Vector3*)pointData;
			
			extractColorBlockRGB(pBlock, points);
			
			// find min and max colors
			Vector3 maxColor, minColor;
			findMinMaxColorsBox(points, 16, &maxColor, &minColor);
			
			selectDiagonal(points, 16, &maxColor, &minColor);
			
			insetBBox(&maxColor, &minColor);
			
			ushort color0 = roundAndExpand(&maxColor);
			ushort color1 = roundAndExpand(&minColor);
			
			if (color0 < color1) {
				Vector3 t = maxColor;
				maxColor = minColor;
				minColor = t;
				
				ushort swap = color0;
				color0 = color1;
				color1 = swap;
			}
			
			CMPRBlock block = new CMPRBlock();
			block.Color0 = color0;
			block.Color1 = color1;
			block.Lookup = computeIndices4(points, &maxColor, &minColor);
			
			
			optimizeEndPoints4(points, &block);
			
			return block;
			
		}

		public static CMPRBlock compressDXT1a(ARGBPixel* img, int imgX, int imgY, int imgW, int imgH) {
			uint* pData = stackalloc uint[16];
			ARGBPixel* pBlock = (ARGBPixel*)pData;
			
			bool hasAlpha = false;
			bool isSingle = true;
			
			ARGBPixel p;
			ARGBPixel* sPtr = img + (imgX + (imgY * imgW));
			int index = 0;
			for (int y = 0; y < 4; y++)
				for (int x = 0; x < 4; x++) {
					p = sPtr[x + (y * imgW)];
					pBlock[index++] = p;
					if (p != pBlock[0])
						isSingle = false;
					if (p.A < 128)
						hasAlpha = true;
				}
			
			if (isSingle)
				return optimalCompressDXT1a(sPtr[0]);
			
			if (!hasAlpha)
				return compressDXT1(pBlock);
			
			// @@ Handle single RGB, with varying alpha? We need tables for single color compressor in 3 color mode.
			//else if (rgba.isSingleColorNoAlpha()) { ... }
			
			float* pointData = stackalloc float[48];
			Vector3* points = (Vector3*)pointData;
			
			// read block
			//Vector3 block[16];
			int num = extractColorBlockRGBA(pBlock, points);
			
			// find min and max colors
			Vector3 maxColor, minColor;
			findMinMaxColorsBox(points, num, &maxColor, &minColor);
			
			selectDiagonal(points, num, &maxColor, &minColor);
			
			insetBBox(&maxColor, &minColor);
			
			ushort color0 = roundAndExpand(&maxColor);
			ushort color1 = roundAndExpand(&minColor);
			
			if (color0 < color1) {
				Vector3 t = maxColor;
				maxColor = minColor;
				minColor = t;
				
				ushort swap = color0;
				color0 = color1;
				color1 = swap;
			}
			
			CMPRBlock block = new CMPRBlock();
			block.Color0 = color1;
			block.Color1 = color0;
			block.Lookup = computeIndices3(pBlock, &maxColor, &minColor);
			
			//	optimizeEndPoints(block, dxtBlock);
			
			return block;
		}


		private static CMPRBlock optimalCompressDXT1(ARGBPixel c) {
			CMPRBlock block = new CMPRBlock();
			
			uint indices = 0xAAAAAAAA;

			block.Color0 = (ushort)((OMatch5[c.R, 0] << 11) | (OMatch6[c.G, 0] << 5) | OMatch5[c.B, 0]);
			block.Color1 = (ushort)((OMatch5[c.R, 1] << 11) | (OMatch6[c.G, 1] << 5) | OMatch5[c.B, 1]);
			
			if (block.Color0 < block.Color1) {
				ushort swap = block.Color0;
				block.Color0 = block.Color1;
				block.Color1 = swap;
				indices ^= 0x55555555;
			}
			block.Lookup = indices;
			return block;
		}
		public static CMPRBlock optimalCompressDXT1a(ARGBPixel rgba) {
			if (rgba.A < 128) {
				CMPRBlock block = new CMPRBlock();
				block.Color0 = 0;
				block.Color1 = 0;
				block.Lookup = 0xFFFFFFFF;
				return block;
			} else {
				return optimalCompressDXT1(rgba);
			}
		}

		private static int extractColorBlockRGBA(ARGBPixel* colors, Vector3* points) {
			int num = 0;
			
			for (int i = 0; i < 16; i++) {
				ARGBPixel p = colors[i];
				if (p.A > 127)
					points[num++] = new Vector3(p.R, p.G, p.B);
			}
			
			return num;
		}

		private static void extractColorBlockRGB(ARGBPixel* colors, Vector3* points) {
			for (int i = 0; i < 16; i++) {
				ARGBPixel p = colors[i];
				points[i] = new Vector3(p.R, p.G, p.B);
			}
		}

		private static void findMinMaxColorsBox(Vector3* points, int num, Vector3* maxColor, Vector3* minColor) {
			*maxColor = new Vector3();
			*minColor = new Vector3(255.0f);
			
			for (uint i = 0; i < num; i++) {
				maxColor->Max(&points[i]);
				minColor->Min(&points[i]);
			}
		}

		private static void selectDiagonal(Vector3* points, int num, Vector3* maxColor, Vector3* minColor) {
			Vector3 center = (*maxColor + *minColor) * 0.5f;
			Vector3 t;
			Vector2* tp = (Vector2*)&t;
			
			Vector2 covariance = new Vector2();
			for (uint i = 0; i < num; i++) {
				t = points[i] - center;
				covariance += *tp * t._z;
			}
			
			float x0 = maxColor->_x;
			float y0 = maxColor->_y;
			float x1 = minColor->_x;
			float y1 = minColor->_y;
			
			if (covariance._x < 0) {
				float swap = x0;
				x0 = x1;
				x1 = swap;
			}
			
			if (covariance._y < 0) {
				float swap = y0;
				y0 = y1;
				y1 = swap;
			}
			
			maxColor->_x = x0;
			maxColor->_y = y0;
			
			minColor->_x = x1;
			minColor->_y = y1;
		}

		private static void insetBBox(Vector3* maxColor, Vector3* minColor) {
			Vector3 inset = (*maxColor - *minColor) / 16.0f - (8.0f / 255.0f) / 16.0f;
			
			maxColor->Sub(&inset);
			maxColor->Clamp(0.0f, 255.0f);
			
			minColor->Add(&inset);
			minColor->Clamp(0.0f, 255.0f);
		}

		private static ushort roundAndExpand(Vector3* v) {
			uint r = (uint)(Math.Min(Math.Max(v->_x * (31.0f / 255.0f), 0.0f), 31.0f) + 0.5f);
			uint g = (uint)(Math.Min(Math.Max(v->_y * (63.0f / 255.0f), 0.0f), 63.0f) + 0.5f);
			uint b = (uint)(Math.Min(Math.Max(v->_z * (31.0f / 255.0f), 0.0f), 31.0f) + 0.5f);
			
			
			ushort w = (ushort)((r << 11) | (g << 5) | b);
			
			r = (r << 3) | (r >> 2);
			g = (g << 2) | (g >> 4);
			b = (b << 3) | (b >> 2);
			*v = new Vector3(r, g, b);
			
			return w;
		}

		private static uint computeIndices3(ARGBPixel* colors, Vector3* maxColor, Vector3* minColor) {
			float* pData = stackalloc float[9];
			Vector3* palette = (Vector3*)pData;
			
			palette[0] = *minColor;
			palette[1] = *maxColor;
			palette[2] = (palette[0] + palette[1]) * 0.5f;
			
			uint indices = 0;
			for (int i = 0; i < 16; i++) {
				ARGBPixel p = colors[i];
				Vector3 color = new Vector3(p.R, p.G, p.B);
				
				float d0 = colorDistance(&palette[0], &color);
				float d1 = colorDistance(&palette[1], &color);
				float d2 = colorDistance(&palette[2], &color);
				
				uint index;
				if (p.A < 128)
					index = 3; else if (d0 < d1 && d0 < d2)
					index = 0; else if (d1 < d2)
					index = 1;
				else
					index = 2;
				
				indices <<= 2;
				indices |= index;
			}
			
			return indices;
		}
		private static uint computeIndices4(Vector3* points, Vector3* maxColor, Vector3* minColor) {
			float* pData = stackalloc float[12];
			Vector3* palette = (Vector3*)pData;
			
			palette[0] = *maxColor;
			palette[1] = *minColor;
			palette[2] = Vector3.Lerp(palette[0], palette[1], 1.0f / 3.0f);
			palette[3] = Vector3.Lerp(palette[0], palette[1], 2.0f / 3.0f);
			
			uint indices = 0;
			for (int i = 0; i < 16; i++) {
				Vector3 color = points[i];
				
				float d0 = colorDistance(&palette[0], &color);
				float d1 = colorDistance(&palette[1], &color);
				float d2 = colorDistance(&palette[2], &color);
				float d3 = colorDistance(&palette[3], &color);
				
				indices <<= 2;
				
				if (d3 < d2 && d3 < d1 && d3 < d0)
					indices |= 3; else if (d2 < d1 && d2 < d0)
					indices |= 2; else if (d1 < d0)
					indices |= 1;
				
				//uint b0 = (d0 > d3) ? (uint)1 : 0;
				//uint b1 = (d1 > d2) ? (uint)1 : 0;
				//uint b2 = (d0 > d2) ? (uint)1 : 0;
				//uint b3 = (d1 > d3) ? (uint)1 : 0;
				//uint b4 = (d2 > d3) ? (uint)1 : 0;
				
				//uint x0 = b1 & b2;
				//uint x1 = b0 & b3;
				//uint x2 = b0 & b4;
				
				//indices <<= 2;
				//indices |= x2 | ((x0 | x1) << 1);
			}
			
			return indices;
		}

		private static void optimizeEndPoints4(Vector3* points, CMPRBlock* block) {
			float alpha2_sum = 0.0f;
			float beta2_sum = 0.0f;
			float alphabeta_sum = 0.0f;
			Vector3 alphax_sum = new Vector3();
			Vector3 betax_sum = new Vector3();
			uint indices = block->Lookup;
			
			for (int i = 0, bi = 30; i < 16; ++i,bi -= 2) {
				uint bits = indices >> bi;
				
				float beta = bits & 1;
				if ((bits & 2) != 0)
					beta = (1 + beta) / 3.0f;
				float alpha = 1.0f - beta;

				alpha2_sum += alpha * alpha;
				beta2_sum += beta * beta;
				alphabeta_sum += alpha * beta;
				alphax_sum += alpha * points[i];
				betax_sum += beta * points[i];
			}
			
			float denom = alpha2_sum * beta2_sum - alphabeta_sum * alphabeta_sum;
			if (Math.Abs(denom) <= 0.0001f)
				return;

			float factor = 1.0f / denom;
			
			Vector3 a = (alphax_sum * beta2_sum - betax_sum * alphabeta_sum) * factor;
			Vector3 b = (betax_sum * alpha2_sum - alphax_sum * alphabeta_sum) * factor;
			
			a.Clamp(0.0f, 255.0f);
			b.Clamp(0.0f, 255.0f);
			
			ushort color0 = roundAndExpand(&a);
			ushort color1 = roundAndExpand(&b);
			
			if (color0 < color1) {
				Vector3 t = a;
				a = b;
				b = t;
				
				ushort swap = color0;
				color0 = color1;
				color1 = swap;
			}
			
			//CMPRBlock block = new CMPRBlock();
			block->Color0 = color0;
			block->Color1 = color1;
			block->Lookup = computeIndices4(points, &a, &b);
		}

		private static float colorDistance(Vector3* c0, Vector3* c1) {
			Vector3 v = *c0 - *c1;
			return Vector3.Dot(v, v);
		}

		#region OptTables
		public static readonly byte[,] OMatch5 = new byte[256, 2] { { 0x00, 0x00 }, { 0x00, 0x00 }, { 0x00, 0x01 }, { 0x00, 0x01 }, { 0x01, 0x00 }, { 0x01, 0x00 }, { 0x01, 0x00 }, { 0x01, 0x01 }, { 0x01, 0x01 }, { 0x01, 0x01 },
		{ 0x01, 0x02 }, { 0x00, 0x04 }, { 0x02, 0x01 }, { 0x02, 0x01 }, { 0x02, 0x01 }, { 0x02, 0x02 }, { 0x02, 0x02 }, { 0x02, 0x02 }, { 0x02, 0x03 }, { 0x01, 0x05 },
		{ 0x03, 0x02 }, { 0x03, 0x02 }, { 0x04, 0x00 }, { 0x03, 0x03 }, { 0x03, 0x03 }, { 0x03, 0x03 }, { 0x03, 0x04 }, { 0x03, 0x04 }, { 0x03, 0x04 }, { 0x03, 0x05 },
		{ 0x04, 0x03 }, { 0x04, 0x03 }, { 0x05, 0x02 }, { 0x04, 0x04 }, { 0x04, 0x04 }, { 0x04, 0x05 }, { 0x04, 0x05 }, { 0x05, 0x04 }, { 0x05, 0x04 }, { 0x05, 0x04 },
		{ 0x06, 0x03 }, { 0x05, 0x05 }, { 0x05, 0x05 }, { 0x05, 0x06 }, { 0x04, 0x08 }, { 0x06, 0x05 }, { 0x06, 0x05 }, { 0x06, 0x05 }, { 0x06, 0x06 }, { 0x06, 0x06 },
		{ 0x06, 0x06 }, { 0x06, 0x07 }, { 0x05, 0x09 }, { 0x07, 0x06 }, { 0x07, 0x06 }, { 0x08, 0x04 }, { 0x07, 0x07 }, { 0x07, 0x07 }, { 0x07, 0x07 }, { 0x07, 0x08 },
		{ 0x07, 0x08 }, { 0x07, 0x08 }, { 0x07, 0x09 }, { 0x08, 0x07 }, { 0x08, 0x07 }, { 0x09, 0x06 }, { 0x08, 0x08 }, { 0x08, 0x08 }, { 0x08, 0x09 }, { 0x08, 0x09 },
		{ 0x09, 0x08 }, { 0x09, 0x08 }, { 0x09, 0x08 }, { 0x0A, 0x07 }, { 0x09, 0x09 }, { 0x09, 0x09 }, { 0x09, 0x0A }, { 0x08, 0x0C }, { 0x0A, 0x09 }, { 0x0A, 0x09 },
		{ 0x0A, 0x09 }, { 0x0A, 0x0A }, { 0x0A, 0x0A }, { 0x0A, 0x0A }, { 0x0A, 0x0B }, { 0x09, 0x0D }, { 0x0B, 0x0A }, { 0x0B, 0x0A }, { 0x0C, 0x08 }, { 0x0B, 0x0B },
		{ 0x0B, 0x0B }, { 0x0B, 0x0B }, { 0x0B, 0x0C }, { 0x0B, 0x0C }, { 0x0B, 0x0C }, { 0x0B, 0x0D }, { 0x0C, 0x0B }, { 0x0C, 0x0B }, { 0x0D, 0x0A }, { 0x0C, 0x0C },
		{ 0x0C, 0x0C }, { 0x0C, 0x0D }, { 0x0C, 0x0D }, { 0x0D, 0x0C }, { 0x0D, 0x0C }, { 0x0D, 0x0C }, { 0x0E, 0x0B }, { 0x0D, 0x0D }, { 0x0D, 0x0D }, { 0x0D, 0x0E },
		{ 0x0C, 0x10 }, { 0x0E, 0x0D }, { 0x0E, 0x0D }, { 0x0E, 0x0D }, { 0x0E, 0x0E }, { 0x0E, 0x0E }, { 0x0E, 0x0E }, { 0x0E, 0x0F }, { 0x0D, 0x11 }, { 0x0F, 0x0E },
		{ 0x0F, 0x0E }, { 0x10, 0x0C }, { 0x0F, 0x0F }, { 0x0F, 0x0F }, { 0x0F, 0x0F }, { 0x0F, 0x10 }, { 0x0F, 0x10 }, { 0x0F, 0x10 }, { 0x0F, 0x11 }, { 0x10, 0x0F },
		{ 0x10, 0x0F }, { 0x11, 0x0E }, { 0x10, 0x10 }, { 0x10, 0x10 }, { 0x10, 0x11 }, { 0x10, 0x11 }, { 0x11, 0x10 }, { 0x11, 0x10 }, { 0x11, 0x10 }, { 0x12, 0x0F },
		{ 0x11, 0x11 }, { 0x11, 0x11 }, { 0x11, 0x12 }, { 0x10, 0x14 }, { 0x12, 0x11 }, { 0x12, 0x11 }, { 0x12, 0x11 }, { 0x12, 0x12 }, { 0x12, 0x12 }, { 0x12, 0x12 },
		{ 0x12, 0x13 }, { 0x11, 0x15 }, { 0x13, 0x12 }, { 0x13, 0x12 }, { 0x14, 0x10 }, { 0x13, 0x13 }, { 0x13, 0x13 }, { 0x13, 0x13 }, { 0x13, 0x14 }, { 0x13, 0x14 },
		{ 0x13, 0x14 }, { 0x13, 0x15 }, { 0x14, 0x13 }, { 0x14, 0x13 }, { 0x15, 0x12 }, { 0x14, 0x14 }, { 0x14, 0x14 }, { 0x14, 0x15 }, { 0x14, 0x15 }, { 0x15, 0x14 },
		{ 0x15, 0x14 }, { 0x15, 0x14 }, { 0x16, 0x13 }, { 0x15, 0x15 }, { 0x15, 0x15 }, { 0x15, 0x16 }, { 0x14, 0x18 }, { 0x16, 0x15 }, { 0x16, 0x15 }, { 0x16, 0x15 },
		{ 0x16, 0x16 }, { 0x16, 0x16 }, { 0x16, 0x16 }, { 0x16, 0x17 }, { 0x15, 0x19 }, { 0x17, 0x16 }, { 0x17, 0x16 }, { 0x18, 0x14 }, { 0x17, 0x17 }, { 0x17, 0x17 },
		{ 0x17, 0x17 }, { 0x17, 0x18 }, { 0x17, 0x18 }, { 0x17, 0x18 }, { 0x17, 0x19 }, { 0x18, 0x17 }, { 0x18, 0x17 }, { 0x19, 0x16 }, { 0x18, 0x18 }, { 0x18, 0x18 },
		{ 0x18, 0x19 }, { 0x18, 0x19 }, { 0x19, 0x18 }, { 0x19, 0x18 }, { 0x19, 0x18 }, { 0x1A, 0x17 }, { 0x19, 0x19 }, { 0x19, 0x19 }, { 0x19, 0x1A }, { 0x18, 0x1C },
		{ 0x1A, 0x19 }, { 0x1A, 0x19 }, { 0x1A, 0x19 }, { 0x1A, 0x1A }, { 0x1A, 0x1A }, { 0x1A, 0x1A }, { 0x1A, 0x1B }, { 0x19, 0x1D }, { 0x1B, 0x1A }, { 0x1B, 0x1A },
		{ 0x1C, 0x18 }, { 0x1B, 0x1B }, { 0x1B, 0x1B }, { 0x1B, 0x1B }, { 0x1B, 0x1C }, { 0x1B, 0x1C }, { 0x1B, 0x1C }, { 0x1B, 0x1D }, { 0x1C, 0x1B }, { 0x1C, 0x1B },
		{ 0x1D, 0x1A }, { 0x1C, 0x1C }, { 0x1C, 0x1C }, { 0x1C, 0x1D }, { 0x1C, 0x1D }, { 0x1D, 0x1C }, { 0x1D, 0x1C }, { 0x1D, 0x1C }, { 0x1E, 0x1B }, { 0x1D, 0x1D },
		{ 0x1D, 0x1D }, { 0x1D, 0x1E }, { 0x1D, 0x1E }, { 0x1E, 0x1D }, { 0x1E, 0x1D }, { 0x1E, 0x1D }, { 0x1E, 0x1E }, { 0x1E, 0x1E }, { 0x1E, 0x1E }, { 0x1E, 0x1F },
		{ 0x1E, 0x1F }, { 0x1F, 0x1E }, { 0x1F, 0x1E }, { 0x1F, 0x1E }, { 0x1F, 0x1F }, { 0x1F, 0x1F } };


		public static readonly byte[,] OMatch6 = new byte[256, 2] { { 0x00, 0x00 }, { 0x00, 0x01 }, { 0x01, 0x00 }, { 0x01, 0x01 }, { 0x01, 0x01 }, { 0x01, 0x02 }, { 0x02, 0x01 }, { 0x02, 0x02 }, { 0x02, 0x02 }, { 0x02, 0x03 },
		{ 0x03, 0x02 }, { 0x03, 0x03 }, { 0x03, 0x03 }, { 0x03, 0x04 }, { 0x04, 0x03 }, { 0x04, 0x04 }, { 0x04, 0x04 }, { 0x04, 0x05 }, { 0x05, 0x04 }, { 0x05, 0x05 },
		{ 0x05, 0x05 }, { 0x05, 0x06 }, { 0x06, 0x05 }, { 0x00, 0x11 }, { 0x06, 0x06 }, { 0x06, 0x07 }, { 0x07, 0x06 }, { 0x02, 0x10 }, { 0x07, 0x07 }, { 0x07, 0x08 },
		{ 0x08, 0x07 }, { 0x03, 0x11 }, { 0x08, 0x08 }, { 0x08, 0x09 }, { 0x09, 0x08 }, { 0x05, 0x10 }, { 0x09, 0x09 }, { 0x09, 0x0A }, { 0x0A, 0x09 }, { 0x06, 0x11 },
		{ 0x0A, 0x0A }, { 0x0A, 0x0B }, { 0x0B, 0x0A }, { 0x08, 0x10 }, { 0x0B, 0x0B }, { 0x0B, 0x0C }, { 0x0C, 0x0B }, { 0x09, 0x11 }, { 0x0C, 0x0C }, { 0x0C, 0x0D },
		{ 0x0D, 0x0C }, { 0x0B, 0x10 }, { 0x0D, 0x0D }, { 0x0D, 0x0E }, { 0x0E, 0x0D }, { 0x0C, 0x11 }, { 0x0E, 0x0E }, { 0x0E, 0x0F }, { 0x0F, 0x0E }, { 0x0E, 0x10 },
		{ 0x0F, 0x0F }, { 0x0F, 0x10 }, { 0x10, 0x0E }, { 0x10, 0x0F }, { 0x11, 0x0E }, { 0x10, 0x10 }, { 0x10, 0x11 }, { 0x11, 0x10 }, { 0x12, 0x0F }, { 0x11, 0x11 },
		{ 0x11, 0x12 }, { 0x12, 0x11 }, { 0x14, 0x0E }, { 0x12, 0x12 }, { 0x12, 0x13 }, { 0x13, 0x12 }, { 0x15, 0x0F }, { 0x13, 0x13 }, { 0x13, 0x14 }, { 0x14, 0x13 },
		{ 0x17, 0x0E }, { 0x14, 0x14 }, { 0x14, 0x15 }, { 0x15, 0x14 }, { 0x18, 0x0F }, { 0x15, 0x15 }, { 0x15, 0x16 }, { 0x16, 0x15 }, { 0x1A, 0x0E }, { 0x16, 0x16 },
		{ 0x16, 0x17 }, { 0x17, 0x16 }, { 0x1B, 0x0F }, { 0x17, 0x17 }, { 0x17, 0x18 }, { 0x18, 0x17 }, { 0x13, 0x21 }, { 0x18, 0x18 }, { 0x18, 0x19 }, { 0x19, 0x18 },
		{ 0x15, 0x20 }, { 0x19, 0x19 }, { 0x19, 0x1A }, { 0x1A, 0x19 }, { 0x16, 0x21 }, { 0x1A, 0x1A }, { 0x1A, 0x1B }, { 0x1B, 0x1A }, { 0x18, 0x20 }, { 0x1B, 0x1B },
		{ 0x1B, 0x1C }, { 0x1C, 0x1B }, { 0x19, 0x21 }, { 0x1C, 0x1C }, { 0x1C, 0x1D }, { 0x1D, 0x1C }, { 0x1B, 0x20 }, { 0x1D, 0x1D }, { 0x1D, 0x1E }, { 0x1E, 0x1D },
		{ 0x1C, 0x21 }, { 0x1E, 0x1E }, { 0x1E, 0x1F }, { 0x1F, 0x1E }, { 0x1E, 0x20 }, { 0x1F, 0x1F }, { 0x1F, 0x20 }, { 0x20, 0x1E }, { 0x20, 0x1F }, { 0x21, 0x1E },
		{ 0x20, 0x20 }, { 0x20, 0x21 }, { 0x21, 0x20 }, { 0x22, 0x1F }, { 0x21, 0x21 }, { 0x21, 0x22 }, { 0x22, 0x21 }, { 0x24, 0x1E }, { 0x22, 0x22 }, { 0x22, 0x23 },
		{ 0x23, 0x22 }, { 0x25, 0x1F }, { 0x23, 0x23 }, { 0x23, 0x24 }, { 0x24, 0x23 }, { 0x27, 0x1E }, { 0x24, 0x24 }, { 0x24, 0x25 }, { 0x25, 0x24 }, { 0x28, 0x1F },
		{ 0x25, 0x25 }, { 0x25, 0x26 }, { 0x26, 0x25 }, { 0x2A, 0x1E }, { 0x26, 0x26 }, { 0x26, 0x27 }, { 0x27, 0x26 }, { 0x2B, 0x1F }, { 0x27, 0x27 }, { 0x27, 0x28 },
		{ 0x28, 0x27 }, { 0x23, 0x31 }, { 0x28, 0x28 }, { 0x28, 0x29 }, { 0x29, 0x28 }, { 0x25, 0x30 }, { 0x29, 0x29 }, { 0x29, 0x2A }, { 0x2A, 0x29 }, { 0x26, 0x31 },
		{ 0x2A, 0x2A }, { 0x2A, 0x2B }, { 0x2B, 0x2A }, { 0x28, 0x30 }, { 0x2B, 0x2B }, { 0x2B, 0x2C }, { 0x2C, 0x2B }, { 0x29, 0x31 }, { 0x2C, 0x2C }, { 0x2C, 0x2D },
		{ 0x2D, 0x2C }, { 0x2B, 0x30 }, { 0x2D, 0x2D }, { 0x2D, 0x2E }, { 0x2E, 0x2D }, { 0x2C, 0x31 }, { 0x2E, 0x2E }, { 0x2E, 0x2F }, { 0x2F, 0x2E }, { 0x2E, 0x30 },
		{ 0x2F, 0x2F }, { 0x2F, 0x30 }, { 0x30, 0x2E }, { 0x30, 0x2F }, { 0x31, 0x2E }, { 0x30, 0x30 }, { 0x30, 0x31 }, { 0x31, 0x30 }, { 0x32, 0x2F }, { 0x31, 0x31 },
		{ 0x31, 0x32 }, { 0x32, 0x31 }, { 0x34, 0x2E }, { 0x32, 0x32 }, { 0x32, 0x33 }, { 0x33, 0x32 }, { 0x35, 0x2F }, { 0x33, 0x33 }, { 0x33, 0x34 }, { 0x34, 0x33 },
		{ 0x37, 0x2E }, { 0x34, 0x34 }, { 0x34, 0x35 }, { 0x35, 0x34 }, { 0x38, 0x2F }, { 0x35, 0x35 }, { 0x35, 0x36 }, { 0x36, 0x35 }, { 0x3A, 0x2E }, { 0x36, 0x36 },
		{ 0x36, 0x37 }, { 0x37, 0x36 }, { 0x3B, 0x2F }, { 0x37, 0x37 }, { 0x37, 0x38 }, { 0x38, 0x37 }, { 0x3D, 0x2E }, { 0x38, 0x38 }, { 0x38, 0x39 }, { 0x39, 0x38 },
		{ 0x3E, 0x2F }, { 0x39, 0x39 }, { 0x39, 0x3A }, { 0x3A, 0x39 }, { 0x3A, 0x3A }, { 0x3A, 0x3A }, { 0x3A, 0x3B }, { 0x3B, 0x3A }, { 0x3B, 0x3B }, { 0x3B, 0x3B },
		{ 0x3B, 0x3C }, { 0x3C, 0x3B }, { 0x3C, 0x3C }, { 0x3C, 0x3C }, { 0x3C, 0x3D }, { 0x3D, 0x3C }, { 0x3D, 0x3D }, { 0x3D, 0x3D }, { 0x3D, 0x3E }, { 0x3E, 0x3D },
		{ 0x3E, 0x3E }, { 0x3E, 0x3E }, { 0x3E, 0x3F }, { 0x3F, 0x3E }, { 0x3F, 0x3F }, { 0x3F, 0x3F } };
		
		#endregion
	}
}