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Implemented IEquatable<ColorFormat>

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This eliminates memory allocations when storing and comparing
ColorFormat structures.
This commit is contained in:
Stefanos A. 2013-11-18 13:49:06 +01:00
parent 3d50554903
commit e7f70330b2
1 changed files with 16 additions and 13 deletions
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29
Source/OpenTK/Graphics/ColorFormat.cs
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@ -36,7 +36,7 @@ namespace OpenTK.Graphics
/// <para>A ColorFormat contains Red, Green, Blue and Alpha components that descibe
/// the allocated bits per pixel for the corresponding color.</para>
/// </remarks>
public struct ColorFormat : IComparable<ColorFormat>
public struct ColorFormat : IComparable<ColorFormat>, IEquatable<ColorFormat>
{
byte red, green, blue, alpha;
bool isIndexed;
@ -181,6 +181,19 @@ namespace OpenTK.Graphics
#endregion
#region IEquatable<ColorFormat> Members
public bool Equals(ColorFormat other)
{
return
Red == other.Red &&
Green == other.Green &&
Blue == other.Blue &&
Alpha == other.Alpha;
}
#endregion
#region Overrides
/// <summary>
@ -190,7 +203,7 @@ namespace OpenTK.Graphics
/// <returns>True if this instance is equal to obj; false otherwise.</returns>
public override bool Equals(object obj)
{
return (obj is ColorFormat) ? (this == (ColorFormat)obj) : false;
return (obj is ColorFormat) ? this.Equals((ColorFormat)obj) : false;
}
/// <summary>
@ -201,17 +214,7 @@ namespace OpenTK.Graphics
/// <returns>True if both instances are equal; false otherwise.</returns>
public static bool operator ==(ColorFormat left, ColorFormat right)
{
if ((object)left == (object)null && (object)right != (object)null ||
(object)left != (object)null && (object)right == (object)null)
return false;
if ((object)left == (object)null && (object)right == (object)null)
return true;
return left.Red == right.Red &&
left.Green == right.Green &&
left.Blue == right.Blue &&
left.Alpha == right.Alpha;
return left.Equals(right);
}
/// <summary>