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更换为wpf

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ww-rm
2025-05-27 15:55:10 +08:00
parent d0f629d9ba
commit 17257a0ffe
316 changed files with 19206 additions and 76537 deletions
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Spine/Utils/SFMLBlendMode.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SFML.Graphics;
namespace Spine.Utils
{
/// <summary>
/// SFML 混合模式, 预乘模式下输入和输出的像素值都是预乘的
/// </summary>
public static class SFMLBlendMode
{
///// <summary>
///// Normal Blend, 无预乘, 仅在 dst.a 是 1 时得到正确结果, 其余情况是有偏结果
///// <para>当 <c>src.c &lt; dst.c</c> 时, 结果偏大, 例如 src 是半透明纯黑, dst 是全透明纯白</para>
///// <para>当 <c>src.c &gt; dst.c</c> 时, 结果偏小, 例如 src 是半透明纯白, dst 是全透明纯黑</para>
///// <code>
///// res.c = src.c * src.a + dst.c * (1 - src.a)
///// res.a = src.a * 1 + dst.a * (1 - src.a)
///// </code>
///// </summary>
//public static readonly BlendMode Normal = new(
// BlendMode.Factor.SrcAlpha,
// BlendMode.Factor.OneMinusSrcAlpha,
// BlendMode.Equation.Add,
// BlendMode.Factor.One,
// BlendMode.Factor.OneMinusSrcAlpha,
// BlendMode.Equation.Add
//);
///// <summary>
///// Additive Blend, 无预乘, 仅在 dst.a 是 1 时得到正确结果, 其余情况是有偏结果
///// <para>当 <c>src.a + dst.a >= 1</c> 时, 结果偏大, 例如 src 是不透明纯黑, dst 是全透明纯白</para>
///// <para>当 <c>src.a + dst.a &lt; 1</c> 时, 结果偏差方式类似 <see cref="Normal"/>, 均可假设 dst 是全透明纯白进行判断</para>
///// <code>
///// res.c = src.c * src.a + dst.c * 1
///// res.a = src.a * 1 + dst.a * 1
///// </code>
///// </summary>
//public static readonly BlendMode Additive = new(
// BlendMode.Factor.SrcAlpha,
// BlendMode.Factor.One,
// BlendMode.Equation.Add,
// BlendMode.Factor.One,
// BlendMode.Factor.One,
// BlendMode.Equation.Add
//);
/// <summary>
/// Normal Blend with PremultipliedAlpha
/// <code>
/// [res.c * res.a] = [src.c * src.a] * 1 + [dst.c * dst.a] * (1 - src.a)
/// res.a = src.a * 1 + dst.a * (1 - src.a)
/// </code>
/// </summary>
public static readonly BlendMode NormalPma = new(
BlendMode.Factor.One,
BlendMode.Factor.OneMinusSrcAlpha,
BlendMode.Equation.Add,
BlendMode.Factor.One,
BlendMode.Factor.OneMinusSrcAlpha,
BlendMode.Equation.Add
);
/// <summary>
/// Additive Blend with PremultipliedAlpha
/// <code>
/// [res.c * res.a] = [src.c * src.a] * 1 + [dst.c * dst.a] * 1
/// res.a = src.a * 1 + dst.a * 1
/// </code>
/// </summary>
public static readonly BlendMode AdditivePma = new(
BlendMode.Factor.One,
BlendMode.Factor.One,
BlendMode.Equation.Add,
BlendMode.Factor.One,
BlendMode.Factor.One,
BlendMode.Equation.Add
);
/// <summary>
/// Multiply Blend with PremultipliedAlpha
/// <code>
/// res.c = src.c * dst.c + dst.c * (1 - src.a)
/// res.a = src.a * 1 + dst.a * (1 - src.a)
/// </code>
/// </summary>
public static readonly BlendMode MultiplyPma = new(
BlendMode.Factor.DstColor,
BlendMode.Factor.OneMinusSrcAlpha,
BlendMode.Equation.Add,
BlendMode.Factor.One,
BlendMode.Factor.OneMinusSrcAlpha,
BlendMode.Equation.Add
);
/// <summary>
/// Screen Blend with PremultipliedAlpha Only
/// <code>
/// res.c = src.c * 1 + dst.c * (1 - src.c) = 1 - [(1 - src.c)(1 - dst.c)]
/// res.a = src.a * 1 + dst.a * (1 - src.a)
/// </code>
/// </summary>
public static readonly BlendMode ScreenPma = new(
BlendMode.Factor.One,
BlendMode.Factor.OneMinusSrcColor,
BlendMode.Equation.Add,
BlendMode.Factor.One,
BlendMode.Factor.OneMinusSrcAlpha,
BlendMode.Equation.Add
);
/// <summary>
/// 仅源像素混合模式
/// </summary>
public static readonly BlendMode SourceOnly = new(
BlendMode.Factor.One,
BlendMode.Factor.Zero
);
}
}