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3978d4babb
This is an effort to improve general performance at song select. At least on the metal renderer, I can notice very high draw frame overheads related to texture uploads. By reducing the size of the texture uploads to roughly match what is actually being displayed on screen (using a relatively inexpensive crop operation), we can bastly reduce stuttering both during initial load and carousel scroll. You might ask if it's safe to disable mipmapping, but I've tested with lower resolutions and bilinear filtering seems to handle just fine. Bilinear without mipmaps only falls apart when you scale below 50% and we're not going too far past that at minimum game scale, if at all.
93 lines
3.3 KiB
C#
93 lines
3.3 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using osu.Framework.Allocation;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Colour;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Graphics.Sprites;
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using osu.Game.Beatmaps;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Game.Screens.Select.Carousel
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{
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public partial class SetPanelBackground : BufferedContainer
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{
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public SetPanelBackground(IWorkingBeatmap working)
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: base(cachedFrameBuffer: true)
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{
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RedrawOnScale = false;
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Children = new Drawable[]
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{
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new PanelBeatmapBackground(working)
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{
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RelativeSizeAxes = Axes.Both,
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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FillMode = FillMode.Fill,
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},
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new FillFlowContainer
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{
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Depth = -1,
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RelativeSizeAxes = Axes.Both,
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Direction = FillDirection.Horizontal,
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// This makes the gradient not be perfectly horizontal, but diagonal at a ~40° angle
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Shear = new Vector2(0.8f, 0),
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Alpha = 0.5f,
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Children = new[]
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{
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// The left half with no gradient applied
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new Box
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{
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RelativeSizeAxes = Axes.Both,
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Colour = Color4.Black,
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Width = 0.4f,
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},
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// Piecewise-linear gradient with 3 segments to make it appear smoother
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new Box
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{
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RelativeSizeAxes = Axes.Both,
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Colour = ColourInfo.GradientHorizontal(Color4.Black, new Color4(0f, 0f, 0f, 0.9f)),
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Width = 0.05f,
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},
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new Box
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{
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RelativeSizeAxes = Axes.Both,
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Colour = ColourInfo.GradientHorizontal(new Color4(0f, 0f, 0f, 0.9f), new Color4(0f, 0f, 0f, 0.1f)),
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Width = 0.2f,
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},
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new Box
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{
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RelativeSizeAxes = Axes.Both,
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Colour = ColourInfo.GradientHorizontal(new Color4(0f, 0f, 0f, 0.1f), new Color4(0, 0, 0, 0)),
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Width = 0.05f,
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},
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}
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},
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};
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}
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public partial class PanelBeatmapBackground : Sprite
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{
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private readonly IWorkingBeatmap working;
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public PanelBeatmapBackground(IWorkingBeatmap working)
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{
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ArgumentNullException.ThrowIfNull(working);
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this.working = working;
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}
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[BackgroundDependencyLoader]
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private void load()
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{
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Texture = working.GetPanelBackground();
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}
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}
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}
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}
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