ryujinx-backup/Opentk
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Matrix3x2 implementation and partial Matrix4x2 implementation.

Browse source
This commit is contained in:
Robert Rouhani 2013-01-20 00:46:47 -08:00
parent f10af59c14
commit df78210bc5
3 changed files with 938 additions and 146 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
Source/OpenTK/Math/Matrix2x3.cs
View file

@ -520,6 +520,18 @@ namespace OpenTK
result.Row2.Y = mat.Row1.Z;
}
/// <summary>
/// Calculate the transpose of the given matrix.
/// </summary>
/// <param name="mat">The matrix to transpose.</param>
/// <returns>The transpose of the given matrix.</returns>
public static Matrix3x2 Transpose(Matrix2x3 mat)
{
Matrix3x2 result;
Transpose(ref mat, out result);
return result;
}
#endregion
#endregion

760
Source/OpenTK/Math/Matrix3x2.cs
View file

@ -27,186 +27,656 @@ using System.Runtime.InteropServices;
namespace OpenTK
{
public struct Matrix3x2 : IEquatable<Matrix3x2>
{
#region Fields
public struct Matrix3x2 : IEquatable<Matrix3x2>
{
#region Fields
/// <summary>
/// Top row of the matrix.
/// </summary>
public Vector2 Row0;
/// <summary>
/// Top row of the matrix.
/// </summary>
public Vector2 Row0;
/// <summary>
/// Second row of the matrix.
/// </summary>
public Vector2 Row1;
/// <summary>
/// Second row of the matrix.
/// </summary>
public Vector2 Row1;
/// <summary>
/// Bottom row of the matrix.
/// </summary>
public Vector2 Row2;
/// <summary>
/// Bottom row of the matrix.
/// </summary>
public Vector2 Row2;
/// <summary>
/// The zero matrix.
/// </summary>
public static Matrix3x2 Zero = new Matrix3x2(Vector2.Zero, Vector2.Zero, Vector2.Zero);
/// <summary>
/// The zero matrix.
/// </summary>
public static readonly Matrix3x2 Zero = new Matrix3x2(Vector2.Zero, Vector2.Zero, Vector2.Zero);
#endregion
#endregion
#region Constructors
#region Constructors
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="row0">Top row of the matrix.</param>
/// <param name="row1">Second row of the matrix.</param>
/// <param name="row2">Bottom row of the matrix.</param>
public Matrix3x2(Vector2 row0, Vector2 row1, Vector2 row2)
{
Row0 = row0;
Row1 = row1;
Row2 = row2;
}
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="row0">Top row of the matrix.</param>
/// <param name="row1">Second row of the matrix.</param>
/// <param name="row2">Bottom row of the matrix.</param>
public Matrix3x2(Vector2 row0, Vector2 row1, Vector2 row2)
{
Row0 = row0;
Row1 = row1;
Row2 = row2;
}
/// <summary>
/// Constructs a new instance
/// </summary>
/// <param name="m00">First item of the first row of the matrix.</param>
/// <param name="m01">Second item of the first row of the matrix.</param>
/// <param name="m10">First item of the second row of the matrix.</param>
/// <param name="m11">Second item of the second row of the matrix.</param>
/// <param name="m20">First item of the third row of the matrix.</param>
/// <param name="m21">Second item of the third row of the matrix.</param>
public Matrix3x2(
float m00, float m01,
float m10, float m11,
float m20, float m21)
{
Row0 = new Vector2(m00, m01);
Row1 = new Vector2(m10, m11);
Row2 = new Vector2(m20, m21);
}
/// <summary>
/// Constructs a new instance
/// </summary>
/// <param name="m00">First item of the first row of the matrix.</param>
/// <param name="m01">Second item of the first row of the matrix.</param>
/// <param name="m10">First item of the second row of the matrix.</param>
/// <param name="m11">Second item of the second row of the matrix.</param>
/// <param name="m20">First item of the third row of the matrix.</param>
/// <param name="m21">Second item of the third row of the matrix.</param>
public Matrix3x2(
float m00, float m01,
float m10, float m11,
float m20, float m21)
{
Row0 = new Vector2(m00, m01);
Row1 = new Vector2(m10, m11);
Row2 = new Vector2(m20, m21);
}
#endregion
#endregion
#region Public Members
#region Public Members
#region Properties
#region Properties
public Vector3 Column0
{
get { return new Vector3(Row0.X, Row1.X, Row2.X); }
set { Row0.X = value.X; Row1.X = value.Y; Row2.X = value.Z; }
}
public Vector3 Column0
{
get { return new Vector3(Row0.X, Row1.X, Row2.X); }
set { Row0.X = value.X; Row1.X = value.Y; Row2.X = value.Z; }
}
public Vector3 Column1
{
get { return new Vector3(Row0.Y, Row1.Y, Row2.Y); }
set { Row0.Y = value.X; Row1.Y = value.Y; Row2.Y = value.Z; }
}
public Vector3 Column1
{
get { return new Vector3(Row0.Y, Row1.Y, Row2.Y); }
set { Row0.Y = value.X; Row1.Y = value.Y; Row2.Y = value.Z; }
}
public float M11 { get { return Row0.X; } set { Row0.X = value; } }
public float M12 { get { return Row0.Y; } set { Row0.Y = value; } }
public float M21 { get { return Row1.X; } set { Row1.X = value; } }
public float M22 { get { return Row1.Y; } set { Row1.Y = value; } }
public float M31 { get { return Row2.X; } set { Row2.X = value; } }
public float M32 { get { return Row2.Y; } set { Row2.Y = value; } }
public float M11 { get { return Row0.X; } set { Row0.X = value; } }
public float M12 { get { return Row0.Y; } set { Row0.Y = value; } }
public float M21 { get { return Row1.X; } set { Row1.X = value; } }
public float M22 { get { return Row1.Y; } set { Row1.Y = value; } }
public float M31 { get { return Row2.X; } set { Row2.X = value; } }
public float M32 { get { return Row2.Y; } set { Row2.Y = value; } }
#endregion
#endregion
#region Indexers
#region Indexers
/// <summary>
/// Gets or sets the value at a specified row and column.
/// </summary>
public float this[int rowIndex, int columnIndex]
{
get
{
if (rowIndex == 0) return Row0[columnIndex];
else if (rowIndex == 1) return Row1[columnIndex];
else if (rowIndex == 2) return Row2[columnIndex];
throw new IndexOutOfRangeException("You tried to access this matrix at: (" + rowIndex + ", " + columnIndex + ")");
}
set
{
if (rowIndex == 0) Row0[columnIndex] = value;
else if (rowIndex == 1) Row1[columnIndex] = value;
else if (rowIndex == 2) Row2[columnIndex] = value;
throw new IndexOutOfRangeException("You tried to set this matrix at: (" + rowIndex + ", " + columnIndex + ")");
}
}
/// <summary>
/// Gets or sets the value at a specified row and column.
/// </summary>
public float this[int rowIndex, int columnIndex]
{
get
{
if (rowIndex == 0) return Row0[columnIndex];
else if (rowIndex == 1) return Row1[columnIndex];
else if (rowIndex == 2) return Row2[columnIndex];
throw new IndexOutOfRangeException("You tried to access this matrix at: (" + rowIndex + ", " + columnIndex + ")");
}
set
{
if (rowIndex == 0) Row0[columnIndex] = value;
else if (rowIndex == 1) Row1[columnIndex] = value;
else if (rowIndex == 2) Row2[columnIndex] = value;
throw new IndexOutOfRangeException("You tried to set this matrix at: (" + rowIndex + ", " + columnIndex + ")");
}
}
#endregion
#endregion
#region Instance
#endregion
#region Instance
#endregion
#region Static
#endregion
#region Static
#region Operators
#endregion
#region CreateRotation
#region Overrides
/// <summary>
/// Builds a rotation matrix.
/// </summary>
/// <param name="angle">The counter-clockwise angle in radians.</param>
/// <param name="result">The resulting Matrix3x2 instance.</param>
public static void CreateRotation(float angle, out Matrix3x2 result)
{
float cos = (float)System.Math.Cos(angle);
float sin = (float)System.Math.Sin(angle);
#region public override string ToString()
result.Row0.X = cos;
result.Row0.Y = sin;
result.Row1.X = -sin;
result.Row1.Y = cos;
result.Row2.X = 0;
result.Row2.Y = 0;
}
/// <summary>
/// Returns a System.String that represents the current Matrix3d.
/// </summary>
/// <returns>The string representation of the matrix.</returns>
public override string ToString()
{
return String.Format("{0}\n{1}\n{2}", Row0, Row1, Row2);
}
/// <summary>
/// Builds a rotation matrix.
/// </summary>
/// <param name="angle">The counter-clockwise angle in radians.</param>
/// <returns>The resulting Matrix3x2 instance.</returns>
public static Matrix3x2 CreateRotation(float angle)
{
Matrix3x2 result;
CreateRotation(angle, out result);
return result;
}
#endregion
#endregion
#region public override int GetHashCode()
#region CreateScale
/// <summary>
/// Returns the hashcode for this instance.
/// </summary>
/// <returns>A System.Int32 containing the unique hashcode for this instance.</returns>
public override int GetHashCode()
{
return Row0.GetHashCode() ^ Row1.GetHashCode() ^ Row2.GetHashCode();
}
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Single scale factor for the x, y, and z axes.</param>
/// <param name="result">A scale matrix.</param>
public static void CreateScale(float scale, out Matrix3x2 result)
{
result.Row0.X = scale;
result.Row0.Y = 0;
result.Row1.X = 0;
result.Row1.Y = scale;
result.Row2.X = 0;
result.Row2.Y = 0;
}
#endregion
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Single scale factor for the x and y axes.</param>
/// <returns>A scale matrix.</returns>
public static Matrix3x2 CreateScale(float scale)
{
Matrix3x2 result;
CreateScale(scale, out result);
return result;
}
#region public override bool Equals(object obj)
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Scale factors for the x and y axes.</param>
/// <param name="result">A scale matrix.</param>
public static void CreateScale(Vector2 scale, out Matrix3x2 result)
{
result.Row0.X = scale.X;
result.Row0.Y = 0;
result.Row1.X = 0;
result.Row1.Y = scale.Y;
result.Row2.X = 0;
result.Row2.Y = 0;
}
/// <summary>
/// Indicates whether this instance and a specified object are equal.
/// </summary>
/// <param name="obj">The object to compare to.</param>
/// <returns>True if the instances are equal; false otherwise.</returns>
public override bool Equals(object obj)
{
if (!(obj is Matrix3x2))
return false;
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Scale factors for the x and y axes.</param>
/// <returns>A scale matrix.</returns>
public static Matrix3x2 CreateScale(Vector2 scale)
{
Matrix3x2 result;
CreateScale(scale, out result);
return result;
}
return this.Equals((Matrix3x2)obj);
}
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="x">Scale factor for the x axis.</param>
/// <param name="y">Scale factor for the y axis.</param>
/// <param name="result">A scale matrix.</param>
public static void CreateScale(float x, float y, out Matrix3x2 result)
{
result.Row0.X = x;
result.Row0.Y = 0;
result.Row1.X = 0;
result.Row1.Y = y;
result.Row2.X = 0;
result.Row2.Y = 0;
}
#endregion
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="x">Scale factor for the x axis.</param>
/// <param name="y">Scale factor for the y axis.</param>
/// <returns>A scale matrix.</returns>
public static Matrix3x2 CreateScale(float x, float y)
{
Matrix3x2 result;
CreateScale(x, y, out result);
return result;
}
#endregion
#endregion
#endregion
#region Multiply Functions
#region IEquatable<Matrix3x2> Members
/// <summary>
/// Multiplies and instance by a scalar.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <param name="result">A new instance that is the result of the multiplication.</param>
public static void Mult(ref Matrix3x2 left, float right, out Matrix3x2 result)
{
result.Row0.X = left.Row0.X * right;
result.Row0.Y = left.Row0.Y * right;
result.Row1.X = left.Row1.X * right;
result.Row1.Y = left.Row1.Y * right;
result.Row2.X = left.Row2.X * right;
result.Row2.Y = left.Row2.Y * right;
}
public bool Equals(Matrix3x2 other)
{
return
Row0 == other.Row0 &&
Row1 == other.Row1 &&
Row2 == other.Row2;
}
/// <summary>
/// Multiplies and instance by a scalar.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <returns>A new instance that is the result of the multiplication.</returns>
public static Matrix3x2 Mult(Matrix3x2 left, float right)
{
Matrix3x2 result;
Mult(ref left, right, out result);
return result;
}
#endregion
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <param name="result">A new instance that is the result of the multiplication.</param>
public static void Mult(ref Matrix3x2 left, ref Matrix2 right, out Matrix3x2 result)
{
float lM11 = left.Row0.X, lM12 = left.Row0.Y,
lM21 = left.Row1.X, lM22 = left.Row1.Y,
lM31 = left.Row2.X, lM32 = left.Row2.Y,
rM11 = right.Row0.X, rM12 = right.Row0.Y,
rM21 = right.Row1.X, rM22 = right.Row1.Y;
result.Row0.X = (lM11 * rM11) + (lM12 * rM21);
result.Row0.Y = (lM11 * rM12) + (lM12 * rM22);
result.Row1.X = (lM21 * rM11) + (lM22 * rM21);
result.Row1.Y = (lM21 * rM12) + (lM22 * rM22);
result.Row2.X = (lM31 * rM11) + (lM32 * rM21);
result.Row2.Y = (lM31 * rM12) + (lM32 * rM22);
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <returns>A new instance that is the result of the multiplication.</returns>
public static Matrix3x2 Mult(Matrix3x2 left, Matrix2 right)
{
Matrix3x2 result;
Mult(ref left, ref right, out result);
return result;
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <param name="result">A new instance that is the result of the multiplication.</param>
public static void Mult(ref Matrix3x2 left, ref Matrix2x3 right, out Matrix3 result)
{
float lM11 = left.Row0.X, lM12 = left.Row0.Y,
lM21 = left.Row1.X, lM22 = left.Row1.Y,
lM31 = left.Row2.X, lM32 = left.Row2.Y,
rM11 = right.Row0.X, rM12 = right.Row0.Y, rM13 = right.Row0.Z,
rM21 = right.Row1.X, rM22 = right.Row1.Y, rM23 = right.Row1.Z;
result.Row0.X = (lM11 * rM11) + (lM12 * rM21);
result.Row0.Y = (lM11 * rM12) + (lM12 * rM22);
result.Row0.Z = (lM11 * rM13) + (lM12 * rM23);
result.Row1.X = (lM21 * rM11) + (lM22 * rM21);
result.Row1.Y = (lM21 * rM12) + (lM22 * rM22);
result.Row1.Z = (lM21 * rM13) + (lM22 * rM23);
result.Row2.X = (lM31 * rM11) + (lM32 * rM21);
result.Row2.Y = (lM31 * rM12) + (lM32 * rM22);
result.Row2.Z = (lM31 * rM13) + (lM32 * rM23);
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <returns>A new instance that is the result of the multiplication.</returns>
public static Matrix3 Mult(Matrix3x2 left, Matrix2x3 right)
{
Matrix3 result;
Mult(ref left, ref right, out result);
return result;
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <param name="result">A new instance that is the result of the multiplication.</param>
public static void Mult(ref Matrix3x2 left, ref Matrix2x4 right, out Matrix3x4 result)
{
float lM11 = left.Row0.X, lM12 = left.Row0.Y,
lM21 = left.Row1.X, lM22 = left.Row1.Y,
lM31 = left.Row2.X, lM32 = left.Row2.Y,
rM11 = right.Row0.X, rM12 = right.Row0.Y, rM13 = right.Row0.Z, rM14 = right.Row0.W,
rM21 = right.Row1.X, rM22 = right.Row1.Y, rM23 = right.Row1.Z, rM24 = right.Row1.W;
result.Row0.X = (lM11 * rM11) + (lM12 * rM21);
result.Row0.Y = (lM11 * rM12) + (lM12 * rM22);
result.Row0.Z = (lM11 * rM13) + (lM12 * rM23);
result.Row0.W = (lM11 * rM14) + (lM12 * rM24);
result.Row1.X = (lM21 * rM11) + (lM22 * rM21);
result.Row1.Y = (lM21 * rM12) + (lM22 * rM22);
result.Row1.Z = (lM21 * rM13) + (lM22 * rM23);
result.Row1.W = (lM21 * rM14) + (lM22 * rM24);
result.Row2.X = (lM31 * rM11) + (lM32 * rM21);
result.Row2.Y = (lM31 * rM12) + (lM32 * rM22);
result.Row2.Z = (lM31 * rM13) + (lM32 * rM23);
result.Row2.W = (lM31 * rM14) + (lM32 * rM24);
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <returns>A new instance that is the result of the multiplication.</returns>
public static Matrix3x4 Mult(Matrix3x2 left, Matrix2x4 right)
{
Matrix3x4 result;
Mult(ref left, ref right, out result);
return result;
}
#endregion
#region Add
/// <summary>
/// Adds two instances.
/// </summary>
/// <param name="left">The left operand of the addition.</param>
/// <param name="right">The right operand of the addition.</param>
/// <param name="result">A new instance that is the result of the addition.</param>
public static void Add(ref Matrix3x2 left, ref Matrix3x2 right, out Matrix3x2 result)
{
result.Row0.X = left.Row0.X + right.Row0.X;
result.Row0.Y = left.Row0.Y + right.Row0.Y;
result.Row1.X = left.Row1.X + right.Row1.X;
result.Row1.Y = left.Row1.Y + right.Row1.Y;
result.Row2.X = left.Row2.X + right.Row2.X;
result.Row2.Y = left.Row2.Y + right.Row2.Y;
}
/// <summary>
/// Adds two instances.
/// </summary>
/// <param name="left">The left operand of the addition.</param>
/// <param name="right">The right operand of the addition.</param>
/// <returns>A new instance that is the result of the addition.</returns>
public static Matrix3x2 Add(Matrix3x2 left, Matrix3x2 right)
{
Matrix3x2 result;
Add(ref left, ref right, out result);
return result;
}
#endregion
#region Subtract
/// <summary>
/// Subtracts two instances.
/// </summary>
/// <param name="left">The left operand of the subtraction.</param>
/// <param name="right">The right operand of the subtraction.</param>
/// <param name="result">A new instance that is the result of the subtraction.</param>
public static void Subtract(ref Matrix3x2 left, ref Matrix3x2 right, out Matrix3x2 result)
{
result.Row0.X = left.Row0.X - right.Row0.X;
result.Row0.Y = left.Row0.Y - right.Row0.Y;
result.Row1.X = left.Row1.X - right.Row1.X;
result.Row1.Y = left.Row1.Y - right.Row1.Y;
result.Row2.X = left.Row2.X - right.Row2.X;
result.Row2.Y = left.Row2.Y - right.Row2.Y;
}
/// <summary>
/// Subtracts two instances.
/// </summary>
/// <param name="left">The left operand of the subtraction.</param>
/// <param name="right">The right operand of the subtraction.</param>
/// <returns>A new instance that is the result of the subtraction.</returns>
public static Matrix3x2 Subtract(Matrix3x2 left, Matrix3x2 right)
{
Matrix3x2 result;
Subtract(ref left, ref right, out result);
return result;
}
#endregion
#region Invert Functions
#endregion
#region Transpose
/// <summary>
/// Calculate the transpose of the given matrix.
/// </summary>
/// <param name="mat">The matrix to transpose.</param>
/// <param name="result">The transpose of the given matrix.</param>
public static void Transpose(ref Matrix3x2 mat, out Matrix2x3 result)
{
result.Row0.X = mat.Row0.X;
result.Row0.Y = mat.Row1.X;
result.Row0.Z = mat.Row2.X;
result.Row1.X = mat.Row0.Y;
result.Row1.Y = mat.Row1.Y;
result.Row1.Z = mat.Row2.Y;
}
/// <summary>
/// Calculate the transpose of the given matrix.
/// </summary>
/// <param name="mat">The matrix to transpose.</param>
/// <returns>The transpose of the given matrix.</returns>
public static Matrix2x3 Transpose(Matrix3x2 mat)
{
Matrix2x3 result;
Transpose(ref mat, out result);
return result;
}
#endregion
#endregion
#region Operators
/// <summary>
/// Scalar multiplication.
/// </summary>
/// <param name="left">left-hand operand</param>
/// <param name="right">right-hand operand</param>
/// <returns>A new Matrix3x2 which holds the result of the multiplication</returns>
public static Matrix3x2 operator *(float left, Matrix3x2 right)
{
return Mult(right, left);
}
/// <summary>
/// Scalar multiplication.
/// </summary>
/// <param name="left">left-hand operand</param>
/// <param name="right">right-hand operand</param>
/// <returns>A new Matrix3x2 which holds the result of the multiplication</returns>
public static Matrix3x2 operator *(Matrix3x2 left, float right)
{
return Mult(left, right);
}
/// <summary>
/// Matrix multiplication
/// </summary>
/// <param name="left">left-hand operand</param>
/// <param name="right">right-hand operand</param>
/// <returns>A new Matrix3x2 which holds the result of the multiplication</returns>
public static Matrix3x2 operator *(Matrix3x2 left, Matrix2 right)
{
return Mult(left, right);
}
/// <summary>
/// Matrix multiplication
/// </summary>
/// <param name="left">left-hand operand</param>
/// <param name="right">right-hand operand</param>
/// <returns>A new Matrix3 which holds the result of the multiplication</returns>
public static Matrix3 operator *(Matrix3x2 left, Matrix2x3 right)
{
return Mult(left, right);
}
/// <summary>
/// Matrix multiplication
/// </summary>
/// <param name="left">left-hand operand</param>
/// <param name="right">right-hand operand</param>
/// <returns>A new Matrix3x4 which holds the result of the multiplication</returns>
public static Matrix3x4 operator *(Matrix3x2 left, Matrix2x4 right)
{
return Mult(left, right);
}
/// <summary>
/// Matrix addition
/// </summary>
/// <param name="left">left-hand operand</param>
/// <param name="right">right-hand operand</param>
/// <returns>A new Matrix3x2 which holds the result of the addition</returns>
public static Matrix3x2 operator +(Matrix3x2 left, Matrix3x2 right)
{
return Add(left, right);
}
/// <summary>
/// Matrix subtraction
/// </summary>
/// <param name="left">left-hand operand</param>
/// <param name="right">right-hand operand</param>
/// <returns>A new Matrix3x2 which holds the result of the subtraction</returns>
public static Matrix3x2 operator -(Matrix3x2 left, Matrix3x2 right)
{
return Subtract(left, right);
}
/// <summary>
/// Compares two instances for equality.
/// </summary>
/// <param name="left">The first instance.</param>
/// <param name="right">The second instance.</param>
/// <returns>True, if left equals right; false otherwise.</returns>
public static bool operator ==(Matrix3x2 left, Matrix3x2 right)
{
return left.Equals(right);
}
/// <summary>
/// Compares two instances for inequality.
/// </summary>
/// <param name="left">The first instance.</param>
/// <param name="right">The second instance.</param>
/// <returns>True, if left does not equal right; false otherwise.</returns>
public static bool operator !=(Matrix3x2 left, Matrix3x2 right)
{
return !left.Equals(right);
}
#endregion
#region Overrides
#region public override string ToString()
/// <summary>
/// Returns a System.String that represents the current Matrix3d.
/// </summary>
/// <returns>The string representation of the matrix.</returns>
public override string ToString()
{
return String.Format("{0}\n{1}\n{2}", Row0, Row1, Row2);
}
#endregion
#region public override int GetHashCode()
/// <summary>
/// Returns the hashcode for this instance.
/// </summary>
/// <returns>A System.Int32 containing the unique hashcode for this instance.</returns>
public override int GetHashCode()
{
return Row0.GetHashCode() ^ Row1.GetHashCode() ^ Row2.GetHashCode();
}
#endregion
#region public override bool Equals(object obj)
/// <summary>
/// Indicates whether this instance and a specified object are equal.
/// </summary>
/// <param name="obj">The object to compare to.</param>
/// <returns>True if the instances are equal; false otherwise.</returns>
public override bool Equals(object obj)
{
if (!(obj is Matrix3x2))
return false;
return this.Equals((Matrix3x2)obj);
}
#endregion
#endregion
#endregion
#region IEquatable<Matrix3x2> Members
public bool Equals(Matrix3x2 other)
{
return
Row0 == other.Row0 &&
Row1 == other.Row1 &&
Row2 == other.Row2;
}
#endregion
}
}

312
Source/OpenTK/Math/Matrix4x2.cs
View file

@ -27,24 +27,49 @@ using System.Runtime.InteropServices;
namespace OpenTK
{
/// <summary>
/// Represents a 4x2 matrix.
/// </summary>
public struct Matrix4x2 : IEquatable<Matrix4x2>
{
#region Fields
/// <summary>
/// Top row of the matrix.
/// </summary>
public Vector2 Row0;
/// <summary>
/// Second row of the matrix.
/// </summary>
public Vector2 Row1;
/// <summary>
/// Third row of the matrix.
/// </summary>
public Vector2 Row2;
/// <summary>
/// Bottom row of the matrix.
/// </summary>
public Vector2 Row3;
/// <summary>
/// The zero matrix.
/// </summary>
public static Matrix4x2 Zero = new Matrix4x2(Vector2.Zero, Vector2.Zero, Vector2.Zero, Vector2.Zero);
public static readonly Matrix4x2 Zero = new Matrix4x2(Vector2.Zero, Vector2.Zero, Vector2.Zero, Vector2.Zero);
#endregion
#region Constructors
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="row0">Top row of the matrix.</param>
/// <param name="row1">Second row of the matrix.</param>
/// <param name="row2">Third row of the matrix.</param>
/// <param name="row3">Bottom row of the matrix.</param>
public Matrix4x2(Vector2 row0, Vector2 row1, Vector2 row2, Vector2 row3)
{
Row0 = row0;
@ -53,6 +78,18 @@ namespace OpenTK
Row3 = row3;
}
/// <summary>
/// Constructs a new instance
/// </summary>
/// <param name="m00">First item of the first row of the matrix.</param>
/// <param name="m01">Second item of the first row of the matrix.</param>
/// <param name="m10">First item of the second row of the matrix.</param>
/// <param name="m11">Second item of the second row of the matrix.</param>
/// <param name="m20">First item of the third row of the matrix.</param>
/// <param name="m21">Second item of the third row of the matrix.</param>
/// <param name="m30">First item of the fourth row of the matrix.</param>
/// <param name="m31">Second item of the fourth row of the matrix.</param>
public Matrix4x2(
float m00, float m01,
float m10, float m11,
@ -121,6 +158,279 @@ namespace OpenTK
#endregion
#region Static
#region CreateRotation
/// <summary>
/// Builds a rotation matrix.
/// </summary>
/// <param name="angle">The counter-clockwise angle in radians.</param>
/// <param name="result">The resulting Matrix3x2 instance.</param>
public static void CreateRotation(float angle, out Matrix4x2 result)
{
float cos = (float)System.Math.Cos(angle);
float sin = (float)System.Math.Sin(angle);
result.Row0.X = cos;
result.Row0.Y = sin;
result.Row1.X = -sin;
result.Row1.Y = cos;
result.Row2.X = 0;
result.Row2.Y = 0;
result.Row3.X = 0;
result.Row3.Y = 0;
}
/// <summary>
/// Builds a rotation matrix.
/// </summary>
/// <param name="angle">The counter-clockwise angle in radians.</param>
/// <returns>The resulting Matrix3x2 instance.</returns>
public static Matrix4x2 CreateRotation(float angle)
{
Matrix4x2 result;
CreateRotation(angle, out result);
return result;
}
#endregion
#region CreateScale
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Single scale factor for the x, y, and z axes.</param>
/// <param name="result">A scale matrix.</param>
public static void CreateScale(float scale, out Matrix4x2 result)
{
result.Row0.X = scale;
result.Row0.Y = 0;
result.Row1.X = 0;
result.Row1.Y = scale;
result.Row2.X = 0;
result.Row2.Y = 0;
result.Row3.X = 0;
result.Row3.Y = 0;
}
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Single scale factor for the x and y axes.</param>
/// <returns>A scale matrix.</returns>
public static Matrix4x2 CreateScale(float scale)
{
Matrix4x2 result;
CreateScale(scale, out result);
return result;
}
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Scale factors for the x and y axes.</param>
/// <param name="result">A scale matrix.</param>
public static void CreateScale(Vector2 scale, out Matrix4x2 result)
{
result.Row0.X = scale.X;
result.Row0.Y = 0;
result.Row1.X = 0;
result.Row1.Y = scale.Y;
result.Row2.X = 0;
result.Row2.Y = 0;
result.Row3.X = 0;
result.Row3.Y = 0;
}
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="scale">Scale factors for the x and y axes.</param>
/// <returns>A scale matrix.</returns>
public static Matrix4x2 CreateScale(Vector2 scale)
{
Matrix4x2 result;
CreateScale(scale, out result);
return result;
}
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="x">Scale factor for the x axis.</param>
/// <param name="y">Scale factor for the y axis.</param>
/// <param name="result">A scale matrix.</param>
public static void CreateScale(float x, float y, out Matrix4x2 result)
{
result.Row0.X = x;
result.Row0.Y = 0;
result.Row1.X = 0;
result.Row1.Y = y;
result.Row2.X = 0;
result.Row2.Y = 0;
result.Row3.X = 0;
result.Row3.Y = 0;
}
/// <summary>
/// Creates a scale matrix.
/// </summary>
/// <param name="x">Scale factor for the x axis.</param>
/// <param name="y">Scale factor for the y axis.</param>
/// <returns>A scale matrix.</returns>
public static Matrix4x2 CreateScale(float x, float y)
{
Matrix4x2 result;
CreateScale(x, y, out result);
return result;
}
#endregion
#region Multiply Functions
/// <summary>
/// Multiplies and instance by a scalar.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <param name="result">A new instance that is the result of the multiplication.</param>
public static void Mult(ref Matrix4x2 left, float right, out Matrix4x2 result)
{
result.Row0.X = left.Row0.X * right;
result.Row0.Y = left.Row0.Y * right;
result.Row1.X = left.Row1.X * right;
result.Row1.Y = left.Row1.Y * right;
result.Row2.X = left.Row2.X * right;
result.Row2.Y = left.Row2.Y * right;
result.Row3.X = left.Row3.X * right;
result.Row3.Y = left.Row3.Y * right;
}
/// <summary>
/// Multiplies and instance by a scalar.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <returns>A new instance that is the result of the multiplication.</returns>
public static Matrix4x2 Mult(Matrix4x2 left, float right)
{
Matrix4x2 result;
Mult(ref left, right, out result);
return result;
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <param name="result">A new instance that is the result of the multiplication.</param>
public static void Mult(ref Matrix4x2 left, ref Matrix2 right, out Matrix4x2 result)
{
float lM11 = left.Row0.X, lM12 = left.Row0.Y,
lM21 = left.Row1.X, lM22 = left.Row1.Y,
lM31 = left.Row2.X, lM32 = left.Row2.Y,
lM41 = left.Row3.X, lM42 = left.Row3.Y,
rM11 = right.Row0.X, rM12 = right.Row0.Y,
rM21 = right.Row1.X, rM22 = right.Row1.Y;
result.Row0.X = (lM11 * rM11) + (lM12 * rM21);
result.Row0.Y = (lM11 * rM12) + (lM12 * rM22);
result.Row1.X = (lM21 * rM11) + (lM22 * rM21);
result.Row1.Y = (lM21 * rM12) + (lM22 * rM22);
result.Row2.X = (lM31 * rM11) + (lM32 * rM21);
result.Row2.Y = (lM31 * rM12) + (lM32 * rM22);
result.Row3.X = (lM41 * rM11) + (lM42 * rM21);
result.Row3.Y = (lM41 * rM12) + (lM42 * rM22);
}
/// <summary>
/// Multiplies two instances.
/// </summary>
/// <param name="left">The left operand of the multiplication.</param>
/// <param name="right">The right operand of the multiplication.</param>
/// <returns>A new instance that is the result of the multiplication.</returns>
public static Matrix4x2 Mult(Matrix4x2 left, Matrix2 right)
{
Matrix4x2 result;
Mult(ref left, ref right, out result);
return result;
}
#endregion
#region Add
#endregion
#region Subtact
#endregion
#region Invert Functions
#endregion
#region Transpose
#endregion
#endregion
#region Operators
#endregion
#region Overrides
#region public override string ToString()
/// <summary>
/// Returns a System.String that represents the current Matrix3d.
/// </summary>
/// <returns>The string representation of the matrix.</returns>
public override string ToString()
{
return String.Format("{0}\n{1}\n{2}\n{3}", Row0, Row1, Row2, Row3);
}
#endregion
#region public override int GetHashCode()
/// <summary>
/// Returns the hashcode for this instance.
/// </summary>
/// <returns>A System.Int32 containing the unique hashcode for this instance.</returns>
public override int GetHashCode()
{
return Row0.GetHashCode() ^ Row1.GetHashCode() ^ Row2.GetHashCode() ^ Row3.GetHashCode();
}
#endregion
#region public override bool Equals(object obj)
/// <summary>
/// Indicates whether this instance and a specified object are equal.
/// </summary>
/// <param name="obj">The object to compare to.</param>
/// <returns>True if the instances are equal; false otherwise.</returns>
public override bool Equals(object obj)
{
if (!(obj is Matrix4x2))
return false;
return this.Equals((Matrix4x2)obj);
}
#endregion
#endregion
#endregion
#region IEquatable<Matrix4x2> Members