112 lines
2.6 KiB
C#
112 lines
2.6 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2012 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System;
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using System.Reflection;
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namespace OpenRA.FileFormats
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{
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public class Palette
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{
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uint[] colors;
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public Color GetColor(int index)
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{
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return Color.FromArgb((int)colors[index]);
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}
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public void SetColor(int index, Color color)
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{
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colors[index] = (uint)color.ToArgb();
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}
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public void SetColor(int index, uint color)
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{
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colors[index] = (uint)color;
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}
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public uint[] Values
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{
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get { return colors; }
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}
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public void ApplyRemap(IPaletteRemap r)
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{
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for(int i = 0; i < 256; i++)
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colors[i] = (uint)r.GetRemappedColor(Color.FromArgb((int)colors[i]),i).ToArgb();
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}
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public Palette(Stream s, int[] remapShadow)
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{
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colors = new uint[256];
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using (BinaryReader reader = new BinaryReader(s))
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{
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for (int i = 0; i < 256; i++)
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{
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byte r = (byte)(reader.ReadByte() << 2);
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byte g = (byte)(reader.ReadByte() << 2);
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byte b = (byte)(reader.ReadByte() << 2);
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colors[i] = (uint)((255 << 24) | (r << 16) | (g << 8) | b);
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}
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}
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colors[0] = 0; //convert black background to transparency
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foreach (int i in remapShadow)
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colors[i] = 140u << 24;
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}
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public Palette(Palette p, IPaletteRemap r)
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{
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colors = (uint[])p.colors.Clone();
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ApplyRemap(r);
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}
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public Palette(Palette p)
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{
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colors = (uint[])p.colors.Clone();
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}
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public Palette(uint[] data)
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{
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if (data.Length != 256)
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throw new InvalidDataException("Attempting to create palette with incorrect array size");
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colors = (uint[])data.Clone();
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}
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public ColorPalette AsSystemPalette()
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{
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ColorPalette pal;
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using (var b = new Bitmap(1, 1, PixelFormat.Format8bppIndexed))
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pal = b.Palette;
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for (var i = 0; i < 256; i++)
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pal.Entries[i] = GetColor(i);
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// hack around a mono bug -- the palette flags get set wrong.
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if (Platform.CurrentPlatform != PlatformType.Windows)
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typeof(ColorPalette).GetField("flags",
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BindingFlags.Instance | BindingFlags.NonPublic).SetValue(pal, 1);
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return pal;
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}
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public static Palette Load(string filename, int[] remap)
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{
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using(var s = File.OpenRead(filename))
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return new Palette(s, remap);
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}
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}
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public interface IPaletteRemap { Color GetRemappedColor(Color original, int index); }
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}
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