#region --- License --- /* Copyright (c) 2006, 2007 Stefanos Apostolopoulos * See license.txt for license info */ #endregion using System; using System.Globalization; namespace OpenTK { /// Defines a color mode for OpenGL rendering. /// /// A ColorMode contains Red, Green, Blue and Alpha components that descibe /// the allocated bits per pixel for the corresponding color. /// [Obsolete("Use OpenTK.Graphics.ColorDepth instead.")] public sealed class ColorMode { byte red, green, blue, alpha; bool isIndexed = false; int bitsPerPixel; #region --- Constructors --- /// /// Constructs a new ColorMode with the specified aggregate bits per pixel. /// /// The bits per pixel sum for the Red, Green, Blue and Alpha color channels. public ColorMode(int bpp) { if (bpp < 0) throw new ArgumentOutOfRangeException("bpp", "Must be greater or equal to zero."); Red = Green = Blue = Alpha = 0; BitsPerPixel = bpp; switch (bpp) { case 32: Red = Green = Blue = Alpha = 8; break; case 24: Red = Green = Blue = 8; break; case 16: Red = Blue = 5; Green = 6; break; case 15: Red = Green = Blue = 5; break; case 8: Red = Green = 3; Blue = 2; IsIndexed = true; break; case 4: Red = Green = 2; Blue = 1; IsIndexed = true; break; case 1: IsIndexed = true; break; default: Red = Blue = Alpha = (byte)(bpp / 4); Green = (byte)((bpp / 4) + (bpp % 4)); break; } } /// /// Constructs a new ColorMode with the specified bits per pixel for /// the Red, Green, Blue and Alpha color channels. /// /// Bits per pixel for the Red color channel. /// Bits per pixel for the Green color channel. /// Bits per pixel for the Blue color channel. /// Bits per pixel for the Alpha color channel. public ColorMode(int red, int green, int blue, int alpha) { if (red < 0 || green < 0 || blue < 0 || alpha < 0) throw new ArgumentOutOfRangeException("Arguments must be greater or equal to zero."); Red = (byte)red; Green = (byte)green; Blue = (byte)blue; Alpha = (byte)alpha; BitsPerPixel = red + green + blue + alpha; if (BitsPerPixel < 15) IsIndexed = true; } #endregion #region --- Public Methods --- /// Gets the bits per pixel for the Red channel. public int Red { get { return red; } private set { red = (byte)value; } } /// Gets the bits per pixel for the Green channel. public int Green { get { return green; } private set { green = (byte)value; } } /// Gets the bits per pixel for the Blue channel. public int Blue { get { return blue; } private set { blue = (byte)value; } } /// Gets the bits per pixel for the Alpha channel. public int Alpha { get { return alpha; } private set { alpha = (byte)value; } } /// Gets a System.Boolean indicating whether this ColorMode is indexed. public bool IsIndexed { get { return isIndexed; } private set { isIndexed = value; } } /// Gets the sum of Red, Green, Blue and Alpha bits per pixel. public int BitsPerPixel { get { return bitsPerPixel; } private set { bitsPerPixel = value; } } #endregion #region --- Operator Overloads --- /// /// Converts the specified bpp into a new ColorMode. /// /// The bits per pixel to convert. /// A ColorMode with the specified bits per pixel. public static implicit operator ColorMode(int bpp) { return new ColorMode(bpp); } //public static implicit operator int(ColorMode mode) //{ // return mode.BitsPerPixel; //} #endregion #region --- Overrides --- public override bool Equals(object obj) { return (obj is ColorMode) ? (this == (ColorMode)obj) : false; } public static bool operator ==(ColorMode left, ColorMode 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; } public static bool operator !=(ColorMode left, ColorMode right) { return !(left == right); } public override int GetHashCode() { return Red ^ Green ^ Blue ^ Alpha; } public override string ToString() { return string.Format("{0} ({1})", BitsPerPixel, (IsIndexed ? " indexed" : Red.ToString() + Green.ToString() + Blue.ToString() + Alpha.ToString())); } #endregion } }