Use a smaller sheet in CursorManager.

Provide an explicit size of 512, smaller than the default 2048. The cursors for all mods still pack onto this single sheet, so we avoid wasting memory on larger sheets.

Sorting the cursors also helps pack them onto the sheets more efficiently.

OpenRA.Game/Graphics/CursorManager.cs

@@ -11,6 +11,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using OpenRA.Primitives;
 
 namespace OpenRA.Graphics
@@ -43,8 +44,11 @@ namespace OpenRA.Graphics
 			hardwareCursorsDisabled = Game.Settings.Graphics.DisableHardwareCursors;
 
 			graphicSettings = Game.Settings.Graphics;
-			sheetBuilder = new SheetBuilder(SheetType.BGRA);
-			foreach (var kv in cursorProvider.Cursors)
+			sheetBuilder = new SheetBuilder(SheetType.BGRA, 512);
+
+			// Sort the cursors for better packing onto the sheet.
+			foreach (var kv in cursorProvider.Cursors
+				.OrderBy(kvp => kvp.Value.Frames.Max(f => f.Size.Height)))
 			{
 				var frames = kv.Value.Frames;
 				var palette = !string.IsNullOrEmpty(kv.Value.Palette) ? cursorProvider.Palettes[kv.Value.Palette] : null;