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128 lines
3.9 KiB
C#
128 lines
3.9 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 osu.Framework.Allocation;
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using osu.Framework.Graphics.Shaders;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Graphics;
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using osuTK;
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using osuTK.Graphics;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Graphics.Rendering;
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using osu.Game.Graphics.Backgrounds;
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namespace osu.Game.Tests.Visual.Background
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{
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public partial class TestSceneTriangleBorderShader : OsuTestScene
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{
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private readonly TestTriangle triangle;
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public TestSceneTriangleBorderShader()
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{
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Children = new Drawable[]
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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 = Color4.DarkGreen
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},
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triangle = new TestTriangle
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Size = new Vector2(200)
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}
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};
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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AddSliderStep("Thickness", 0f, 1f, 0.15f, t => triangle.Thickness = t);
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AddSliderStep("Texel size", 0f, 0.1f, 0f, t => triangle.TexelSize = t);
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}
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private partial class TestTriangle : Sprite
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{
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private float thickness = 0.15f;
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public float Thickness
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{
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get => thickness;
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set
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{
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thickness = value;
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Invalidate(Invalidation.DrawNode);
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}
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}
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private float texelSize;
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public float TexelSize
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{
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get => texelSize;
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set
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{
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texelSize = value;
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Invalidate(Invalidation.DrawNode);
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}
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}
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[BackgroundDependencyLoader]
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private void load(ShaderManager shaders, IRenderer renderer)
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{
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TextureShader = shaders.Load(VertexShaderDescriptor.TEXTURE_2, "TriangleBorder");
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Texture = renderer.WhitePixel;
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}
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protected override DrawNode CreateDrawNode() => new TriangleDrawNode(this);
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private class TriangleDrawNode : SpriteDrawNode
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{
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public new TestTriangle Source => (TestTriangle)base.Source;
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public TriangleDrawNode(TestTriangle source)
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: base(source)
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{
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}
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private float thickness;
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private float texelSize;
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public override void ApplyState()
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{
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base.ApplyState();
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thickness = Source.thickness;
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texelSize = Source.texelSize;
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}
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private IUniformBuffer<TriangleBorderData>? borderDataBuffer;
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protected override void BindUniformResources(IShader shader, IRenderer renderer)
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{
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base.BindUniformResources(shader, renderer);
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borderDataBuffer ??= renderer.CreateUniformBuffer<TriangleBorderData>();
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borderDataBuffer.Data = borderDataBuffer.Data with
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{
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Thickness = thickness,
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TexelSize = texelSize
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};
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shader.BindUniformBlock("m_BorderData", borderDataBuffer);
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}
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protected override bool CanDrawOpaqueInterior => false;
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protected override void Dispose(bool isDisposing)
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{
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base.Dispose(isDisposing);
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borderDataBuffer?.Dispose();
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}
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}
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}
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}
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}
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