3a30748f05
Sheets carry a managed buffer of data that allows updates to be made without having to constantly fetch and set data to the texture memory of the video card. This is useful for things like SheetBuilder which make small progressive changes to sheets. However these buffers are often large and are kept alive because sheets are referenced by the sprites that use them. If this buffer is explicitly null'ed when it is no longer needed then the GC can reclaim it. Sometimes a buffer need not even be created because the object using the sheet only works on the texture directly anyway. In practise, this reduced memory consumed by such buffers from ~165 MiB to ~112 MiB (at the start of a new RA skirmish mission).
91 lines
2.4 KiB
C#
91 lines
2.4 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2014 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;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using OpenRA.FileSystem;
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namespace OpenRA.Graphics
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{
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public class Theater
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{
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SheetBuilder sheetBuilder;
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Dictionary<ushort, Sprite[]> templates;
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Sprite missingTile;
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Sprite[] LoadTemplate(string filename, string[] exts, Dictionary<string, ISpriteSource> sourceCache, int[] frames)
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{
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ISpriteSource source;
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if (!sourceCache.ContainsKey(filename))
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{
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using (var s = GlobalFileSystem.OpenWithExts(filename, exts))
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source = SpriteSource.LoadSpriteSource(s, filename);
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if (source.CacheWhenLoadingTileset)
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sourceCache.Add(filename, source);
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}
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else
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source = sourceCache[filename];
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if (frames != null)
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{
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var ret = new List<Sprite>();
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var srcFrames = source.Frames.ToArray();
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foreach (var i in frames)
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ret.Add(sheetBuilder.Add(srcFrames[i]));
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return ret.ToArray();
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}
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return source.Frames.Select(f => sheetBuilder.Add(f)).ToArray();
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}
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public Theater(TileSet tileset)
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{
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var allocated = false;
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Func<Sheet> allocate = () =>
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{
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if (allocated)
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throw new SheetOverflowException("Terrain sheet overflow. Try increasing the tileset SheetSize parameter.");
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allocated = true;
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return new Sheet(new Size(tileset.SheetSize, tileset.SheetSize), true);
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};
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var sourceCache = new Dictionary<string, ISpriteSource>();
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templates = new Dictionary<ushort, Sprite[]>();
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sheetBuilder = new SheetBuilder(SheetType.Indexed, allocate);
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foreach (var t in tileset.Templates)
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templates.Add(t.Value.Id, LoadTemplate(t.Value.Image, tileset.Extensions, sourceCache, t.Value.Frames));
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// 1x1px transparent tile
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missingTile = sheetBuilder.Add(new byte[1], new Size(1, 1));
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Sheet.ReleaseBuffer();
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}
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public Sprite TileSprite(TerrainTile r)
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{
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Sprite[] template;
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if (!templates.TryGetValue(r.Type, out template))
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return missingTile;
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if (r.Index >= template.Length)
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return missingTile;
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return template[r.Index];
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}
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public Sheet Sheet { get { return sheetBuilder.Current; } }
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}
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}
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