100 lines
2.7 KiB
C#
100 lines
2.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2016 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, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System.Drawing;
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using System.IO;
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using System.Linq;
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using OpenRA.FileSystem;
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using OpenRA.Primitives;
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namespace OpenRA.Graphics
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{
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public interface ISpriteLoader
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{
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bool TryParseSprite(Stream s, out ISpriteFrame[] frames);
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}
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public interface ISpriteFrame
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{
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/// <summary>
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/// Size of the frame's `Data`.
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/// </summary>
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Size Size { get; }
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/// <summary>
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/// Size of the entire frame including the frame's `Size`.
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/// Think of this like a picture frame.
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/// </summary>
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Size FrameSize { get; }
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float2 Offset { get; }
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byte[] Data { get; }
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bool DisableExportPadding { get; }
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}
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public class SpriteCache
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{
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public readonly SheetBuilder SheetBuilder;
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readonly Cache<string, Sprite[]> sprites;
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public SpriteCache(IReadOnlyFileSystem fileSystem, ISpriteLoader[] loaders, SheetBuilder sheetBuilder)
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{
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SheetBuilder = sheetBuilder;
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sprites = new Cache<string, Sprite[]>(filename => SpriteLoader.GetSprites(fileSystem, filename, loaders, sheetBuilder));
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}
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public Sprite[] this[string filename] { get { return sprites[filename]; } }
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}
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public class FrameCache
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{
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readonly Cache<string, ISpriteFrame[]> frames;
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public FrameCache(IReadOnlyFileSystem fileSystem, ISpriteLoader[] loaders)
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{
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frames = new Cache<string, ISpriteFrame[]>(filename => SpriteLoader.GetFrames(fileSystem, filename, loaders));
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}
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public ISpriteFrame[] this[string filename] { get { return frames[filename]; } }
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}
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public static class SpriteLoader
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{
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public static Sprite[] GetSprites(IReadOnlyFileSystem fileSystem, string filename, ISpriteLoader[] loaders, SheetBuilder sheetBuilder)
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{
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return GetFrames(fileSystem, filename, loaders).Select(a => sheetBuilder.Add(a)).ToArray();
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}
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public static ISpriteFrame[] GetFrames(IReadOnlyFileSystem fileSystem, string filename, ISpriteLoader[] loaders)
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{
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using (var stream = fileSystem.Open(filename))
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{
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var spriteFrames = GetFrames(stream, loaders);
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if (spriteFrames == null)
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throw new InvalidDataException(filename + " is not a valid sprite file!");
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return spriteFrames;
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}
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}
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public static ISpriteFrame[] GetFrames(Stream stream, ISpriteLoader[] loaders)
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{
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ISpriteFrame[] frames;
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foreach (var loader in loaders)
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if (loader.TryParseSprite(stream, out frames))
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return frames;
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return null;
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}
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}
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}
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