| | | 1 | | using System.Diagnostics.CodeAnalysis; |
| | | 2 | | using System.Drawing; |
| | | 3 | | using System.Runtime.InteropServices; |
| | | 4 | | |
| | | 5 | | namespace Imagini.Drawing |
| | | 6 | | { |
| | | 7 | | /* |
| | | 8 | | * Note: When implementing SDL2 pixel formats, it should be noted that the |
| | | 9 | | * channel order is reversed, i.e. RGBA means that A comes first, then B, |
| | | 10 | | * then G, then R. |
| | | 11 | | */ |
| | | 12 | | |
| | | 13 | | public interface IColor |
| | | 14 | | { |
| | | 15 | | PixelFormat Format { get; } |
| | | 16 | | Color AsColor(); |
| | | 17 | | } |
| | | 18 | | |
| | | 19 | | [StructLayout(LayoutKind.Sequential)] |
| | | 20 | | public struct ColorRGBA8888 : IColor |
| | | 21 | | { |
| | 1211 | 22 | | public byte A { get; set; } |
| | 1209 | 23 | | public byte B { get; set; } |
| | 1209 | 24 | | public byte G { get; set; } |
| | 1209 | 25 | | public byte R { get; set; } |
| | | 26 | | |
| | 9 | 27 | | public PixelFormat Format => PixelFormat.Format_RGBA8888; |
| | | 28 | | |
| | | 29 | | public ColorRGBA8888(Color color) |
| | | 30 | | { |
| | 7 | 31 | | A = color.A; |
| | 7 | 32 | | R = color.R; |
| | 7 | 33 | | G = color.G; |
| | 7 | 34 | | B = color.B; |
| | 7 | 35 | | } |
| | | 36 | | |
| | | 37 | | private bool Equals(ColorRGBA8888 other) |
| | | 38 | | { |
| | 501 | 39 | | return A == other.A && R == other.R && G == other.G && B == other.B; |
| | | 40 | | } |
| | | 41 | | |
| | | 42 | | /// <summary> |
| | | 43 | | /// Checks for object equality. |
| | | 44 | | /// </summary> |
| | | 45 | | public override bool Equals(object obj) |
| | | 46 | | { |
| | 501 | 47 | | if (obj is ColorRGBA8888) |
| | 501 | 48 | | return Equals((ColorRGBA8888)obj); |
| | 0 | 49 | | return false; |
| | | 50 | | } |
| | | 51 | | |
| | | 52 | | /// <summary> |
| | | 53 | | /// Calculates the hash code. |
| | | 54 | | /// </summary> |
| | | 55 | | public override int GetHashCode() |
| | | 56 | | { |
| | | 57 | | unchecked { |
| | 100 | 58 | | return (int)((R << 24) | (G << 16) | (B << 8) | A); |
| | | 59 | | } |
| | | 60 | | } |
| | | 61 | | |
| | | 62 | | /// <summary> |
| | | 63 | | /// Converts to System.Drawing.Color. |
| | | 64 | | /// </summary> |
| | 102 | 65 | | public Color AsColor() => Color.FromArgb(A, R, G, B); |
| | | 66 | | |
| | | 67 | | [ExcludeFromCodeCoverage] |
| | | 68 | | /// <summary> |
| | | 69 | | /// Converts from System.Drawing.Color. |
| | | 70 | | /// </summary> |
| | | 71 | | public static explicit operator ColorRGBA8888(Color clr) => new ColorRGBA8888(clr); |
| | | 72 | | [ExcludeFromCodeCoverage] |
| | | 73 | | /// <summary> |
| | | 74 | | /// Converts to System.Drawing.Color. |
| | | 75 | | /// </summary> |
| | | 76 | | public static explicit operator Color(ColorRGBA8888 clr) => clr.AsColor(); |
| | | 77 | | } |
| | | 78 | | |
| | | 79 | | [StructLayout(LayoutKind.Sequential)] |
| | | 80 | | public struct ColorARGB8888 : IColor |
| | | 81 | | { |
| | | 82 | | public byte B { get; set; } |
| | | 83 | | public byte G { get; set; } |
| | | 84 | | public byte R { get; set; } |
| | | 85 | | public byte A { get; set; } |
| | | 86 | | |
| | | 87 | | public ColorARGB8888(Color color) |
| | | 88 | | { |
| | | 89 | | A = color.A; |
| | | 90 | | R = color.R; |
| | | 91 | | G = color.G; |
| | | 92 | | B = color.B; |
| | | 93 | | } |
| | | 94 | | |
| | | 95 | | public PixelFormat Format => PixelFormat.Format_ARGB8888; |
| | | 96 | | |
| | | 97 | | private bool Equals(ColorARGB8888 other) |
| | | 98 | | { |
| | | 99 | | return A == other.A && R == other.R && G == other.G && B == other.B; |
| | | 100 | | } |
| | | 101 | | |
| | | 102 | | /// <summary> |
| | | 103 | | /// Checks for object equality. |
| | | 104 | | /// </summary> |
| | | 105 | | public override bool Equals(object obj) |
| | | 106 | | { |
| | | 107 | | if (obj is ColorARGB8888) |
| | | 108 | | return Equals((ColorARGB8888)obj); |
| | | 109 | | return false; |
| | | 110 | | } |
| | | 111 | | |
| | | 112 | | /// <summary> |
| | | 113 | | /// Calculates the hash code. |
| | | 114 | | /// </summary> |
| | | 115 | | public override int GetHashCode() |
| | | 116 | | { |
| | | 117 | | unchecked { |
| | | 118 | | return (int)((A << 24) | (R << 16) | (G << 8) | B); |
| | | 119 | | } |
| | | 120 | | } |
| | | 121 | | |
| | | 122 | | /// <summary> |
| | | 123 | | /// Converts to System.Drawing.Color. |
| | | 124 | | /// </summary> |
| | | 125 | | public Color AsColor() => Color.FromArgb(A, R, G, B); |
| | | 126 | | |
| | | 127 | | [ExcludeFromCodeCoverage] |
| | | 128 | | /// <summary> |
| | | 129 | | /// Converts from System.Drawing.Color. |
| | | 130 | | /// </summary> |
| | | 131 | | public static explicit operator ColorARGB8888(Color clr) => new ColorARGB8888(clr); |
| | | 132 | | [ExcludeFromCodeCoverage] |
| | | 133 | | /// <summary> |
| | | 134 | | /// Converts to System.Drawing.Color. |
| | | 135 | | /// </summary> |
| | | 136 | | public static explicit operator Color(ColorARGB8888 clr) => clr.AsColor(); |
| | | 137 | | } |
| | | 138 | | |
| | | 139 | | [StructLayout(LayoutKind.Sequential)] |
| | | 140 | | public struct ColorRGB888 : IColor |
| | | 141 | | { |
| | | 142 | | public byte B { get; set; } |
| | | 143 | | public byte G { get; set; } |
| | | 144 | | public byte R { get; set; } |
| | | 145 | | byte Padding; |
| | | 146 | | |
| | | 147 | | public ColorRGB888(Color color) |
| | | 148 | | { |
| | | 149 | | R = color.R; |
| | | 150 | | G = color.G; |
| | | 151 | | B = color.B; |
| | | 152 | | Padding = 0; |
| | | 153 | | } |
| | | 154 | | |
| | | 155 | | public PixelFormat Format => PixelFormat.Format_RGB888; |
| | | 156 | | |
| | | 157 | | private bool Equals(ColorRGB888 other) |
| | | 158 | | { |
| | | 159 | | return R == other.R && G == other.G && B == other.B; |
| | | 160 | | } |
| | | 161 | | |
| | | 162 | | /// <summary> |
| | | 163 | | /// Checks for object equality. |
| | | 164 | | /// </summary> |
| | | 165 | | public override bool Equals(object obj) |
| | | 166 | | { |
| | | 167 | | if (obj is ColorRGB888) |
| | | 168 | | return Equals((ColorRGB888)obj); |
| | | 169 | | return false; |
| | | 170 | | } |
| | | 171 | | |
| | | 172 | | /// <summary> |
| | | 173 | | /// Calculates the hash code. |
| | | 174 | | /// </summary> |
| | | 175 | | public override int GetHashCode() |
| | | 176 | | { |
| | | 177 | | unchecked { |
| | | 178 | | return (int)((0xFF << 24) | (R << 16) | (G << 8) | B); |
| | | 179 | | } |
| | | 180 | | } |
| | | 181 | | |
| | | 182 | | /// <summary> |
| | | 183 | | /// Converts to System.Drawing.Color. |
| | | 184 | | /// </summary> |
| | | 185 | | public Color AsColor() => Color.FromArgb(255, R, G, B); |
| | | 186 | | |
| | | 187 | | [ExcludeFromCodeCoverage] |
| | | 188 | | /// <summary> |
| | | 189 | | /// Converts from System.Drawing.Color. |
| | | 190 | | /// </summary> |
| | | 191 | | public static explicit operator ColorRGB888(Color clr) => new ColorRGB888(clr); |
| | | 192 | | [ExcludeFromCodeCoverage] |
| | | 193 | | /// <summary> |
| | | 194 | | /// Converts to System.Drawing.Color. |
| | | 195 | | /// </summary> |
| | | 196 | | public static explicit operator Color(ColorRGB888 clr) => clr.AsColor(); |
| | | 197 | | } |
| | | 198 | | |
| | | 199 | | // TODO: Add more color types |
| | | 200 | | } |