| | | 1 | | // <copyright file="Box.cs" company="Jérémy Ansel"> |
| | | 2 | | // Copyright (c) 2014-2019 Jérémy Ansel |
| | | 3 | | // </copyright> |
| | | 4 | | // <license> |
| | | 5 | | // Licensed under the MIT license. See LICENSE.txt |
| | | 6 | | // </license> |
| | | 7 | | |
| | | 8 | | namespace JeremyAnsel.ColorQuant |
| | | 9 | | { |
| | | 10 | | /// <summary> |
| | | 11 | | /// A box color cube. |
| | | 12 | | /// </summary> |
| | | 13 | | internal sealed class Box |
| | | 14 | | { |
| | | 15 | | /// <summary> |
| | | 16 | | /// The index bits. |
| | | 17 | | /// </summary> |
| | | 18 | | private const int IndexBits = 7; |
| | | 19 | | |
| | | 20 | | /// <summary> |
| | | 21 | | /// Gets or sets the min red value, exclusive. |
| | | 22 | | /// </summary> |
| | | 23 | | public int R0; |
| | | 24 | | |
| | | 25 | | /// <summary> |
| | | 26 | | /// Gets or sets the max red value, inclusive. |
| | | 27 | | /// </summary> |
| | | 28 | | public int R1; |
| | | 29 | | |
| | | 30 | | /// <summary> |
| | | 31 | | /// Gets or sets the min green value, exclusive. |
| | | 32 | | /// </summary> |
| | | 33 | | public int G0; |
| | | 34 | | |
| | | 35 | | /// <summary> |
| | | 36 | | /// Gets or sets the max green value, inclusive. |
| | | 37 | | /// </summary> |
| | | 38 | | public int G1; |
| | | 39 | | |
| | | 40 | | /// <summary> |
| | | 41 | | /// Gets or sets the min blue value, exclusive. |
| | | 42 | | /// </summary> |
| | | 43 | | public int B0; |
| | | 44 | | |
| | | 45 | | /// <summary> |
| | | 46 | | /// Gets or sets the max blue value, inclusive. |
| | | 47 | | /// </summary> |
| | | 48 | | public int B1; |
| | | 49 | | |
| | | 50 | | /// <summary> |
| | | 51 | | /// Gets or sets the volume. |
| | | 52 | | /// </summary> |
| | | 53 | | public int Volume; |
| | | 54 | | |
| | | 55 | | public int Index111; |
| | | 56 | | public int Index110; |
| | | 57 | | public int Index101; |
| | | 58 | | public int Index100; |
| | | 59 | | public int Index011; |
| | | 60 | | public int Index010; |
| | | 61 | | public int Index001; |
| | | 62 | | public int Index000; |
| | | 63 | | |
| | | 64 | | public void Update() |
| | | 65 | | { |
| | 5104 | 66 | | Volume = (R1 - R0) * (G1 - G0) * (B1 - B0); |
| | | 67 | | |
| | 5104 | 68 | | int r1 = (R1 << (IndexBits * 2)) + (R1 << (IndexBits + 1)) + R1; |
| | 5104 | 69 | | int r0 = (R0 << (IndexBits * 2)) + (R0 << (IndexBits + 1)) + R0; |
| | 5104 | 70 | | int g1 = (G1 << IndexBits) + G1; |
| | 5104 | 71 | | int g0 = (G0 << IndexBits) + G0; |
| | 5104 | 72 | | int b1 = B1; |
| | 5104 | 73 | | int b0 = B0; |
| | | 74 | | |
| | 5104 | 75 | | Index111 = r1 + g1 + b1; |
| | 5104 | 76 | | Index110 = r1 + g1 + b0; |
| | 5104 | 77 | | Index101 = r1 + g0 + b1; |
| | 5104 | 78 | | Index100 = r1 + g0 + b0; |
| | 5104 | 79 | | Index011 = r0 + g1 + b1; |
| | 5104 | 80 | | Index010 = r0 + g1 + b0; |
| | 5104 | 81 | | Index001 = r0 + g0 + b1; |
| | 5104 | 82 | | Index000 = r0 + g0 + b0; |
| | 5104 | 83 | | } |
| | | 84 | | } |
| | | 85 | | } |
| | | 86 | | |