103 lines
2.5 KiB
C#
103 lines
2.5 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2021 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.Collections.Generic;
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using System.Diagnostics;
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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namespace OpenRA.Mods.Common.LoadScreens
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{
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public abstract class SheetLoadScreen : BlankLoadScreen
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{
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Stopwatch lastUpdate;
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protected Dictionary<string, string> Info { get; private set; }
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float dpiScale = 1;
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Sheet sheet;
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int density;
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public override void Init(ModData modData, Dictionary<string, string> info)
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{
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base.Init(modData, info);
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Info = info;
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}
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public abstract void DisplayInner(Renderer r, Sheet s, int density);
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public override void Display()
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{
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// Limit load screens to at most 5 FPS
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if (Game.Renderer == null || (lastUpdate != null && lastUpdate.Elapsed.TotalSeconds < 0.2))
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return;
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// Start the timer on the first render
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if (lastUpdate == null)
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lastUpdate = Stopwatch.StartNew();
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// Check for window DPI changes
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// We can't trust notifications to be working during initialization, so must do this manually
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var scale = Game.Renderer.WindowScale;
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if (dpiScale != scale)
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{
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dpiScale = scale;
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// Force images to be reloaded on the next display
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sheet?.Dispose();
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sheet = null;
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}
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if (sheet == null && Info.ContainsKey("Image"))
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{
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var key = "Image";
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density = 1;
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if (dpiScale > 2 && Info.ContainsKey("Image3x"))
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{
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key = "Image3x";
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density = 3;
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}
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else if (dpiScale > 1 && Info.ContainsKey("Image2x"))
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{
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key = "Image2x";
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density = 2;
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}
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using (var stream = ModData.DefaultFileSystem.Open(Platform.ResolvePath(Info[key])))
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{
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sheet = new Sheet(SheetType.BGRA, stream);
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sheet.GetTexture().ScaleFilter = TextureScaleFilter.Linear;
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}
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}
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Game.Renderer.BeginUI();
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DisplayInner(Game.Renderer, sheet, density);
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Game.Renderer.EndFrame(new NullInputHandler());
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lastUpdate.Restart();
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}
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protected static Sprite CreateSprite(Sheet s, int density, Rectangle rect)
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{
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return new Sprite(s, density * rect, TextureChannel.RGBA, 1f / density);
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}
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protected override void Dispose(bool disposing)
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{
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if (disposing)
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sheet?.Dispose();
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base.Dispose(disposing);
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}
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}
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}
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