测试代码

CHANGELOG.md

@@ -1,5 +1,17 @@
 # CHANGELOG
 
+## v0.12.1
+
+- 优化使用体验, 提供初始皮肤/动画空位
+- 修复预览画面分辨率调整时父容器尺寸获取错误
+
+## v0.12.0
+
+- 支持皮肤列表 (仅 3.8.x 及以上支持)
+- 支持多轨道动画
+- 动画和皮肤列表多选时改为取并集
+- 修复导出时没有正确处理预乘像素的问题
+
 ## v0.11.5
 
 - 导出格式全面支持

README.en.md

@@ -1,6 +1,8 @@
 # [SpineViewer](https://github.com/ww-rm/SpineViewer)
 
 [![Build and Release](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml/badge.svg)](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml)
+[![GitHub Release](https://img.shields.io/github/v/release/ww-rm/SpineViewer?logo=github&logoColor=959da5&label=Release&labelColor=3f4850)](https://github.com/ww-rm/SpineViewer/releases)
+[![Downloads](https://img.shields.io/github/downloads/ww-rm/SpineViewer/total?logo=github&logoColor=959da5&label=Downloads&labelColor=3f4850)](https://github.com/ww-rm/SpineViewer/releases)
 
 [中文](README.md) | [English](README.en.md)
 
@@ -10,6 +12,10 @@
 
 ---
 
+:sparkles: v0.12.x New Feature: Support for multi-track animations and multi-skin list management :sparkles:
+
+---
+
 ## Installation
 
 Head over to the [Release](https://github.com/ww-rm/SpineViewer/releases) page to download the zip package.
@@ -23,7 +29,7 @@ Exporting video formats such as GIF requires that ffmpeg is installed locally an
 ## Supported Export Formats
 
 | Export Format  | Suitable for Scenario                                                                 |
-| :------------: | :------------------------------------------------------------------------------------:|
+| ------------ | ------------------------------------------------------------------------------------|
 | Single Frame   | Supports generating high-definition model snapshots; you can manually adjust the frame. |
 | Frame Sequence | Supports png sequence output with transparency and lossless compression.              |
 | GIF            | Ideal for generating preview animations.                                              |

README.md

@@ -1,6 +1,8 @@
 # [SpineViewer](https://github.com/ww-rm/SpineViewer)
 
 [![Build and Release](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml/badge.svg)](https://github.com/ww-rm/SpineViewer/actions/workflows/dotnet-desktop.yml)
+[![GitHub Release](https://img.shields.io/github/v/release/ww-rm/SpineViewer?logo=github&logoColor=959da5&label=Release&labelColor=3f4850)](https://github.com/ww-rm/SpineViewer/releases)
+[![Downloads](https://img.shields.io/github/downloads/ww-rm/SpineViewer/total?logo=github&logoColor=959da5&label=Downloads&labelColor=3f4850)](https://github.com/ww-rm/SpineViewer/releases)
 
 [中文](README.md) | [English](README.en.md)
 
@@ -10,6 +12,10 @@
 
 ---
 
+:sparkles: v0.12.x 新增功能: 支持多轨道动画以及多皮肤列表管理 :sparkles:
+
+---
+
 ## 安装
 
 前往 [Release](https://github.com/ww-rm/SpineViewer/releases) 界面下载压缩包.
@@ -23,7 +29,7 @@
 ## 导出格式支持
 
 | 导出格式 | 适用场景 |
-| :---: | :---: |  
+| --- | --- |
 | 单帧画面 | 支持生成高清模型画面图像, 可手动调节需要的一帧. |
 | 帧序列 | 支持 png 格式帧序列, 可保留透明通道且无损压缩. |
 | GIF | 适合生成预览动图. |

SpineRuntimes/SpineRuntime21/AnimationState.cs

@@ -41,6 +41,7 @@ namespace SpineRuntime21 {
 
 		public AnimationStateData Data { get { return data; } }
 		public float TimeScale { get { return timeScale; } set { timeScale = value; } }
+		public List<TrackEntry> Tracks => tracks;
 
         public delegate void StartEndDelegate(AnimationState state, int trackIndex);
 		public event StartEndDelegate Start;

SpineViewer/Controls/SpineListView.cs

@@ -13,6 +13,7 @@ using System.Reflection;
 using System.Diagnostics;
 using System.Collections.Specialized;
 using NLog;
+
 namespace SpineViewer.Controls
 {
     public partial class SpineListView : UserControl

SpineViewer/Controls/SpinePreviewer.cs

@@ -97,8 +97,8 @@ namespace SpineViewer.Controls
                 if (value.Width <= 0) value.Width = 100;
                 if (value.Height <= 0) value.Height = 100;
 
-                float parentX = Width;
+                float parentX = panel.Parent.Width;
-                float parentY = Height;
+                float parentY = panel.Parent.Height;
                 float sizeX = value.Width;
                 float sizeY = value.Height;
 
@@ -120,7 +120,7 @@ namespace SpineViewer.Controls
                 RenderWindow.Size = new((uint)sizeX, (uint)sizeY);
 
                 // 将 view 的大小设置成于 resolution 相同的大小, 其余属性都不变
-                var view = RenderWindow.GetView();
+                using var view = RenderWindow.GetView();
                 var signX = Math.Sign(view.Size.X);
                 var signY = Math.Sign(view.Size.Y);
                 view.Size = new(value.Width * signX, value.Height * signY);
@@ -140,12 +140,13 @@ namespace SpineViewer.Controls
         {
             get
             {
-                var center = RenderWindow.GetView().Center;
+                using var view = RenderWindow.GetView();
+                var center = view.Center;
                 return new(center.X, center.Y);
             }
             set
             {
-                var view = RenderWindow.GetView();
+                using var view = RenderWindow.GetView();
                 view.Center = new(value.X, value.Y);
                 RenderWindow.SetView(view);
             }
@@ -158,11 +159,15 @@ namespace SpineViewer.Controls
         [Browsable(false)]
         public float Zoom
         {
-            get => resolution.Width / Math.Abs(RenderWindow.GetView().Size.X);
+            get
+            {
+                using var view = RenderWindow.GetView();
+                return resolution.Width / Math.Abs(view.Size.X);
+            }
             set
             {
                 value = Math.Clamp(value, ZOOM_MIN, ZOOM_MAX);
-                var view = RenderWindow.GetView();
+                using var view = RenderWindow.GetView();
                 var signX = Math.Sign(view.Size.X);
                 var signY = Math.Sign(view.Size.Y);
                 view.Size = new(resolution.Width / value * signX, resolution.Height / value * signY);
@@ -177,10 +182,14 @@ namespace SpineViewer.Controls
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public float Rotation
         {
-            get => RenderWindow.GetView().Rotation;
+            get
+            {
+                using var view = RenderWindow.GetView();
+                return view.Rotation;
+            }
             set
             {
-                var view = RenderWindow.GetView();
+                using var view = RenderWindow.GetView();
                 view.Rotation = value;
                 RenderWindow.SetView(view);
             }
@@ -193,10 +202,14 @@ namespace SpineViewer.Controls
         [Browsable(false)]
         public bool FlipX
         {
-            get => RenderWindow.GetView().Size.X < 0;
+            get
+            {
+                using var view = RenderWindow.GetView();
+                return view.Size.X < 0;
+            }
             set
             {
-                var view = RenderWindow.GetView();
+                using var view = RenderWindow.GetView();
                 var size = view.Size;
                 if (size.X > 0 && value || size.X < 0 && !value)
                     size.X *= -1;
@@ -212,10 +225,14 @@ namespace SpineViewer.Controls
         [Browsable(false)]
         public bool FlipY
         {
-            get => RenderWindow.GetView().Size.Y < 0;
+            get
+            {
+                using var view = RenderWindow.GetView();
+                return view.Size.Y < 0;
+            }
             set
             {
-                var view = RenderWindow.GetView();
+                using var view = RenderWindow.GetView();
                 var size = view.Size;
                 if (size.Y > 0 && value || size.Y < 0 && !value)
                     size.Y *= -1;
@@ -619,7 +636,7 @@ namespace SpineViewer.Controls
                 lock (SpineListView.Spines)
                 {
                     foreach (var spine in SpineListView.Spines)
-                        spine.Track0Animation = spine.Track0Animation; // TODO: 多轨道重置
+                        spine.ResetAnimationsTime();
                 }
             }
         }
@@ -631,7 +648,7 @@ namespace SpineViewer.Controls
                 lock (SpineListView.Spines)
                 {
                     foreach (var spine in SpineListView.Spines)
-                        spine.Track0Animation = spine.Track0Animation; // TODO: 多轨道重置
+                        spine.ResetAnimationsTime();
                 }
             }
             IsUpdating = true;

SpineViewer/Dialogs/AnimationTracksEditorDialog.Designer.cs

@@ -0,0 +1,153 @@
+namespace SpineViewer.Dialogs
+{
+    partial class AnimationTracksEditorDialog
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panel = new Panel();
+            tableLayoutPanel1 = new TableLayoutPanel();
+            flowLayoutPanel1 = new FlowLayoutPanel();
+            button_Add = new Button();
+            button_Delete = new Button();
+            button_Ok = new Button();
+            propertyGrid_AnimationTracks = new PropertyGrid();
+            panel.SuspendLayout();
+            tableLayoutPanel1.SuspendLayout();
+            flowLayoutPanel1.SuspendLayout();
+            SuspendLayout();
+            // 
+            // panel
+            // 
+            panel.Controls.Add(tableLayoutPanel1);
+            panel.Dock = DockStyle.Fill;
+            panel.Location = new Point(0, 0);
+            panel.Name = "panel";
+            panel.Padding = new Padding(50, 15, 50, 10);
+            panel.Size = new Size(666, 483);
+            panel.TabIndex = 0;
+            // 
+            // tableLayoutPanel1
+            // 
+            tableLayoutPanel1.ColumnCount = 1;
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
+            tableLayoutPanel1.Controls.Add(flowLayoutPanel1, 0, 1);
+            tableLayoutPanel1.Controls.Add(propertyGrid_AnimationTracks, 0, 0);
+            tableLayoutPanel1.Dock = DockStyle.Fill;
+            tableLayoutPanel1.Location = new Point(50, 15);
+            tableLayoutPanel1.Name = "tableLayoutPanel1";
+            tableLayoutPanel1.RowCount = 2;
+            tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.Size = new Size(566, 458);
+            tableLayoutPanel1.TabIndex = 0;
+            // 
+            // flowLayoutPanel1
+            // 
+            flowLayoutPanel1.AutoSize = true;
+            flowLayoutPanel1.Controls.Add(button_Add);
+            flowLayoutPanel1.Controls.Add(button_Delete);
+            flowLayoutPanel1.Controls.Add(button_Ok);
+            flowLayoutPanel1.Dock = DockStyle.Fill;
+            flowLayoutPanel1.Location = new Point(3, 415);
+            flowLayoutPanel1.Name = "flowLayoutPanel1";
+            flowLayoutPanel1.Size = new Size(560, 40);
+            flowLayoutPanel1.TabIndex = 2;
+            // 
+            // button_Add
+            // 
+            button_Add.Location = new Point(3, 3);
+            button_Add.Name = "button_Add";
+            button_Add.Size = new Size(112, 34);
+            button_Add.TabIndex = 0;
+            button_Add.Text = "添加";
+            button_Add.UseVisualStyleBackColor = true;
+            button_Add.Click += button_Add_Click;
+            // 
+            // button_Delete
+            // 
+            button_Delete.Location = new Point(121, 3);
+            button_Delete.Name = "button_Delete";
+            button_Delete.Size = new Size(112, 34);
+            button_Delete.TabIndex = 1;
+            button_Delete.Text = "删除";
+            button_Delete.UseVisualStyleBackColor = true;
+            button_Delete.Click += button_Delete_Click;
+            // 
+            // button_Ok
+            // 
+            button_Ok.Location = new Point(239, 3);
+            button_Ok.Name = "button_Ok";
+            button_Ok.Size = new Size(112, 34);
+            button_Ok.TabIndex = 2;
+            button_Ok.Text = "确定";
+            button_Ok.UseVisualStyleBackColor = true;
+            button_Ok.Click += button_Ok_Click;
+            // 
+            // propertyGrid_AnimationTracks
+            // 
+            propertyGrid_AnimationTracks.Dock = DockStyle.Fill;
+            propertyGrid_AnimationTracks.HelpVisible = false;
+            propertyGrid_AnimationTracks.Location = new Point(3, 3);
+            propertyGrid_AnimationTracks.Name = "propertyGrid_AnimationTracks";
+            propertyGrid_AnimationTracks.PropertySort = PropertySort.NoSort;
+            propertyGrid_AnimationTracks.Size = new Size(560, 406);
+            propertyGrid_AnimationTracks.TabIndex = 1;
+            propertyGrid_AnimationTracks.ToolbarVisible = false;
+            // 
+            // AnimationTracksEditorDialog
+            // 
+            AcceptButton = button_Ok;
+            AutoScaleDimensions = new SizeF(11F, 24F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(666, 483);
+            Controls.Add(panel);
+            FormBorderStyle = FormBorderStyle.FixedDialog;
+            MaximizeBox = false;
+            MinimizeBox = false;
+            Name = "AnimationTracksEditorDialog";
+            ShowIcon = false;
+            ShowInTaskbar = false;
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "多轨道动画实时编辑器";
+            panel.ResumeLayout(false);
+            tableLayoutPanel1.ResumeLayout(false);
+            tableLayoutPanel1.PerformLayout();
+            flowLayoutPanel1.ResumeLayout(false);
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel;
+        private TableLayoutPanel tableLayoutPanel1;
+        private FlowLayoutPanel flowLayoutPanel1;
+        private Button button_Add;
+        private Button button_Delete;
+        private PropertyGrid propertyGrid_AnimationTracks;
+        private Button button_Ok;
+    }
+}

SpineViewer/Dialogs/AnimationTracksEditorDialog.cs

@@ -0,0 +1,48 @@
+using SpineViewer.Spine;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace SpineViewer.Dialogs
+{
+    public partial class AnimationTracksEditorDialog : Form
+    {
+        private readonly Spine.Spine spine;
+        public AnimationTracksEditorDialog(Spine.Spine spine)
+        {
+            InitializeComponent();
+            this.spine = spine;
+            propertyGrid_AnimationTracks.SelectedObject = spine.AnimationTracks;
+        }
+
+        private void button_Add_Click(object sender, EventArgs e)
+        {
+            spine.SetAnimation(spine.GetTrackIndices().Max() + 1, spine.AnimationNames[0]);
+            propertyGrid_AnimationTracks.Refresh();
+        }
+
+        private void button_Delete_Click(object sender, EventArgs e)
+        {
+            if (propertyGrid_AnimationTracks.SelectedGridItem?.Value is TrackWrapper tr)
+            {
+                if (tr.Index == 0)
+                    MessageBox.Info("必须保留轨道 0");
+                else
+                    spine.ClearTrack(tr.Index);
+            }
+            propertyGrid_AnimationTracks.Refresh();
+            propertyGrid_AnimationTracks.SelectedGridItem = propertyGrid_AnimationTracks.SelectedGridItem?.Parent?.GridItems?.Cast<GridItem>().Last();
+        }
+
+        private void button_Ok_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.OK;
+        }
+    }
+}

SpineViewer/Dialogs/AnimationTracksEditorDialog.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SpineViewer/Dialogs/SkinManagerEditorDialog.Designer.cs

@@ -0,0 +1,153 @@
+namespace SpineViewer.Dialogs
+{
+    partial class SkinManagerEditorDialog
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panel = new Panel();
+            tableLayoutPanel1 = new TableLayoutPanel();
+            flowLayoutPanel1 = new FlowLayoutPanel();
+            button_Add = new Button();
+            button_Delete = new Button();
+            button_Ok = new Button();
+            propertyGrid_SkinManager = new PropertyGrid();
+            panel.SuspendLayout();
+            tableLayoutPanel1.SuspendLayout();
+            flowLayoutPanel1.SuspendLayout();
+            SuspendLayout();
+            // 
+            // panel
+            // 
+            panel.Controls.Add(tableLayoutPanel1);
+            panel.Dock = DockStyle.Fill;
+            panel.Location = new Point(0, 0);
+            panel.Name = "panel";
+            panel.Padding = new Padding(50, 15, 50, 10);
+            panel.Size = new Size(666, 483);
+            panel.TabIndex = 0;
+            // 
+            // tableLayoutPanel1
+            // 
+            tableLayoutPanel1.ColumnCount = 1;
+            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
+            tableLayoutPanel1.Controls.Add(flowLayoutPanel1, 0, 1);
+            tableLayoutPanel1.Controls.Add(propertyGrid_SkinManager, 0, 0);
+            tableLayoutPanel1.Dock = DockStyle.Fill;
+            tableLayoutPanel1.Location = new Point(50, 15);
+            tableLayoutPanel1.Name = "tableLayoutPanel1";
+            tableLayoutPanel1.RowCount = 2;
+            tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
+            tableLayoutPanel1.RowStyles.Add(new RowStyle());
+            tableLayoutPanel1.Size = new Size(566, 458);
+            tableLayoutPanel1.TabIndex = 0;
+            // 
+            // flowLayoutPanel1
+            // 
+            flowLayoutPanel1.AutoSize = true;
+            flowLayoutPanel1.Controls.Add(button_Add);
+            flowLayoutPanel1.Controls.Add(button_Delete);
+            flowLayoutPanel1.Controls.Add(button_Ok);
+            flowLayoutPanel1.Dock = DockStyle.Fill;
+            flowLayoutPanel1.Location = new Point(3, 415);
+            flowLayoutPanel1.Name = "flowLayoutPanel1";
+            flowLayoutPanel1.Size = new Size(560, 40);
+            flowLayoutPanel1.TabIndex = 2;
+            // 
+            // button_Add
+            // 
+            button_Add.Location = new Point(3, 3);
+            button_Add.Name = "button_Add";
+            button_Add.Size = new Size(112, 34);
+            button_Add.TabIndex = 0;
+            button_Add.Text = "添加";
+            button_Add.UseVisualStyleBackColor = true;
+            button_Add.Click += button_Add_Click;
+            // 
+            // button_Delete
+            // 
+            button_Delete.Location = new Point(121, 3);
+            button_Delete.Name = "button_Delete";
+            button_Delete.Size = new Size(112, 34);
+            button_Delete.TabIndex = 1;
+            button_Delete.Text = "删除";
+            button_Delete.UseVisualStyleBackColor = true;
+            button_Delete.Click += button_Delete_Click;
+            // 
+            // button_Ok
+            // 
+            button_Ok.Location = new Point(239, 3);
+            button_Ok.Name = "button_Ok";
+            button_Ok.Size = new Size(112, 34);
+            button_Ok.TabIndex = 3;
+            button_Ok.Text = "确定";
+            button_Ok.UseVisualStyleBackColor = true;
+            button_Ok.Click += button_Ok_Click;
+            // 
+            // propertyGrid_SkinManager
+            // 
+            propertyGrid_SkinManager.Dock = DockStyle.Fill;
+            propertyGrid_SkinManager.HelpVisible = false;
+            propertyGrid_SkinManager.Location = new Point(3, 3);
+            propertyGrid_SkinManager.Name = "propertyGrid_SkinManager";
+            propertyGrid_SkinManager.PropertySort = PropertySort.NoSort;
+            propertyGrid_SkinManager.Size = new Size(560, 406);
+            propertyGrid_SkinManager.TabIndex = 1;
+            propertyGrid_SkinManager.ToolbarVisible = false;
+            // 
+            // SkinManagerEditorDialog
+            // 
+            AcceptButton = button_Ok;
+            AutoScaleDimensions = new SizeF(11F, 24F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(666, 483);
+            Controls.Add(panel);
+            FormBorderStyle = FormBorderStyle.FixedDialog;
+            MaximizeBox = false;
+            MinimizeBox = false;
+            Name = "SkinManagerEditorDialog";
+            ShowIcon = false;
+            ShowInTaskbar = false;
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "皮肤列表实时编辑器";
+            panel.ResumeLayout(false);
+            tableLayoutPanel1.ResumeLayout(false);
+            tableLayoutPanel1.PerformLayout();
+            flowLayoutPanel1.ResumeLayout(false);
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel;
+        private TableLayoutPanel tableLayoutPanel1;
+        private FlowLayoutPanel flowLayoutPanel1;
+        private Button button_Add;
+        private Button button_Delete;
+        private PropertyGrid propertyGrid_SkinManager;
+        private Button button_Ok;
+    }
+}

SpineViewer/Dialogs/SkinManagerEditorDialog.cs

@@ -0,0 +1,50 @@
+using SpineViewer.Spine;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace SpineViewer.Dialogs
+{
+    public partial class SkinManagerEditorDialog : Form
+    {
+        private readonly Spine.Spine spine;
+        public SkinManagerEditorDialog(Spine.Spine spine)
+        {
+            InitializeComponent();
+            this.spine = spine;
+            propertyGrid_SkinManager.SelectedObject = spine.SkinManager;
+        }
+
+        private void button_Add_Click(object sender, EventArgs e)
+        {
+            if (spine.SkinNames.Count <= 0)
+            {
+                MessageBox.Info($"{spine.Name} 没有可用的皮肤");
+                return;
+            }
+            spine.LoadSkin(spine.SkinNames[0]);
+            propertyGrid_SkinManager.Refresh();
+        }
+
+        private void button_Delete_Click(object sender, EventArgs e)
+        {
+            if (propertyGrid_SkinManager.SelectedGridItem?.Value is SkinWrapper sk)
+                spine.UnloadSkin(sk.Index);
+            propertyGrid_SkinManager.Refresh();
+
+            if (propertyGrid_SkinManager.SelectedGridItem?.Parent?.GridItems?.Cast<GridItem>().Last() is GridItem gt)
+                propertyGrid_SkinManager.SelectedGridItem = gt;
+        }
+
+        private void button_Ok_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.OK;
+        }
+    }
+}

SpineViewer/Dialogs/SkinManagerEditorDialog.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SpineViewer/Exporter/ExportArgs.cs

@@ -8,13 +8,14 @@ using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
+using static System.Windows.Forms.VisualStyles.VisualStyleElement.StartPanel;
 
 namespace SpineViewer.Exporter
 {
     /// <summary>
     /// 导出参数基类
     /// </summary>
-    public abstract class ExportArgs : ImplementationResolver<ExportArgs, ExportImplementationAttribute, ExportType>
+    public abstract class ExportArgs : ImplementationResolver<ExportArgs, ExportImplementationAttribute, ExportType>, IDisposable
     {
         /// <summary>
         /// 创建指定类型导出参数
@@ -34,6 +35,10 @@ namespace SpineViewer.Exporter
             RenderSelectedOnly = renderSelectedOnly;
         }
 
+        ~ExportArgs() { Dispose(false); }
+        public void Dispose() { Dispose(true); GC.SuppressFinalize(this); }
+        protected virtual void Dispose(bool disposing) { View?.Dispose(); }
+
         /// <summary>
         /// 输出文件夹
         /// </summary>
@@ -72,7 +77,27 @@ namespace SpineViewer.Exporter
         [Editor(typeof(SFMLColorEditor), typeof(UITypeEditor))]
         [TypeConverter(typeof(SFMLColorConverter))]
         [Category("[0] 导出"), DisplayName("背景颜色"), Description("要使用的背景色, 格式为 #RRGGBBAA")]
-        public SFML.Graphics.Color BackgroundColor { get; set; } = SFML.Graphics.Color.Transparent;
+        public SFML.Graphics.Color BackgroundColor 
+        {
+            get => backgroundColor;
+            set
+            {
+                backgroundColor = value;
+                var bcPma = value;
+                var a = bcPma.A / 255f;
+                bcPma.R = (byte)(bcPma.R * a);
+                bcPma.G = (byte)(bcPma.G * a);
+                bcPma.B = (byte)(bcPma.B * a);
+                BackgroundColorPma = bcPma;
+            }
+        }
+        private SFML.Graphics.Color backgroundColor = SFML.Graphics.Color.Transparent;
+
+        /// <summary>
+        /// 预乘后的背景颜色
+        /// </summary>
+        [Browsable(false)]
+        public SFML.Graphics.Color BackgroundColorPma { get; private set; } = SFML.Graphics.Color.Transparent;
 
         /// <summary>
         /// 检查参数是否合法并规范化参数值, 否则返回用户错误原因

SpineViewer/Exporter/ExportHelper.cs

@@ -33,7 +33,7 @@ namespace SpineViewer.Exporter
     }
 
     /// <summary>
-    /// SFML.Graphics.Image 帧对象包装类
+    /// SFML.Graphics.Image 帧对象包装类, 将接管给定的 image 对象生命周期
     /// </summary>
     public class SFMLImageVideoFrame(SFML.Graphics.Image image) : IVideoFrame, IDisposable
     {
@@ -64,12 +64,7 @@ namespace SpineViewer.Exporter
         /// <summary>
         /// 获取 Winforms Bitmap 对象
         /// </summary>
-        public Bitmap CopyToBitmap()
+        public Bitmap CopyToBitmap() => image.CopyToBitmap();
-        {
-            image.SaveToMemory(out var imgBuffer, "bmp");
-            using var stream = new MemoryStream(imgBuffer);
-            return new(new Bitmap(stream)); // 必须重复构造一个副本才能摆脱对流的依赖, 否则之后使用会报错
-        }
     }
 
     /// <summary>
@@ -86,51 +81,5 @@ namespace SpineViewer.Exporter
             else if (imageFormat == ImageFormat.Exif) return ".jpeg";
             else return $".{imageFormat.ToString().ToLower()}";
         }
-
-        #region 包围盒辅助函数
-
-        /// <summary>
-        /// 获取某个包围盒下合适的视图
-        /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, Padding padding)
-            => bounds.GetView((uint)resolution.Width, (uint)resolution.Height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
-
-        /// <summary>
-        /// 获取某个包围盒下合适的视图
-        /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, Padding padding)
-            => bounds.GetView(width, height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
-
-        /// <summary>
-        /// 获取某个包围盒下合适的视图
-        /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
-            => bounds.GetView((uint)resolution.Width, (uint)resolution.Height, paddingL, paddingR, paddingT, paddingB);
-
-        /// <summary>
-        /// 获取某个包围盒下合适的视图
-        /// </summary>
-        public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
-        {
-            float sizeX = bounds.Width;
-            float sizeY = bounds.Height;
-            float innerW = width - paddingL - paddingR;
-            float innerH = height - paddingT - paddingB;
-
-            float scale = 1;
-            if (sizeY / sizeX < innerH / innerW)
-                scale = sizeX / innerW; // 相同的 X, 视窗 Y 更大
-            else
-                scale = sizeY / innerH; // 相同的 Y, 视窗 X 更大
-
-            var x = bounds.X + bounds.Width / 2 + (paddingL - (float)paddingR) * scale;
-            var y = bounds.Y + bounds.Height / 2 + (paddingT - (float)paddingB) * scale;
-            var viewX = width * scale;
-            var viewY = height * scale;
-
-            return new(new(x, y), new(viewX, -viewY));
-        }
-
-        #endregion
     }
 }

SpineViewer/Exporter/Exporter.cs

@@ -1,5 +1,4 @@
 using NLog;
-using SpineViewer.Spine;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -15,6 +14,11 @@ namespace SpineViewer.Exporter
     /// </summary>
     public abstract class Exporter(ExportArgs exportArgs) : ImplementationResolver<Exporter, ExportImplementationAttribute, ExportType>
     {
+        /// <summary>
+        /// 仅源像素混合模式
+        /// </summary>
+        private static readonly SFML.Graphics.BlendMode SrcOnlyBlendMode = new(SFML.Graphics.BlendMode.Factor.One, SFML.Graphics.BlendMode.Factor.Zero);
+
         /// <summary>
         /// 创建指定类型导出器
         /// </summary>
@@ -52,28 +56,55 @@ namespace SpineViewer.Exporter
         /// <summary>
         /// 获取单个模型的单帧画面
         /// </summary>
-        protected SFMLImageVideoFrame GetFrame(Spine.Spine spine)
+        protected SFMLImageVideoFrame GetFrame(Spine.Spine spine) => GetFrame([spine]);
-        {
-            // tex 必须临时创建, 随用随取, 防止出现跨线程的情况
-            using var tex = GetRenderTexture();
-            tex.Clear(ExportArgs.BackgroundColor);
-            tex.Draw(spine);
-            tex.Display();
-            return new(tex.Texture.CopyToImage());
-        }
 
         /// <summary>
         /// 获取模型列表的单帧画面
         /// </summary>
         protected SFMLImageVideoFrame GetFrame(Spine.Spine[] spinesToRender)
         {
-            // tex 必须临时创建, 随用随取, 防止出现跨线程的情况
+            // RenderTexture 必须临时创建, 随用随取, 防止出现跨线程的情况
+            using var texPma = GetRenderTexture();
+
+            // 先将预乘结果准确绘制出来, 注意背景色也应当是预乘的
+            texPma.Clear(ExportArgs.BackgroundColorPma);
+            foreach (var spine in spinesToRender) texPma.Draw(spine);
+            texPma.Display();
+
+            // 背景色透明度不为 1 时需要处理反预乘, 否则直接就是结果
+            if (ExportArgs.BackgroundColor.A < 255)
+            {
+                // 从预乘结果构造渲染对象, 并正确设置变换
+                using var view = texPma.GetView();
+                using var img = texPma.Texture.CopyToImage();
+                using var texSprite = new SFML.Graphics.Texture(img);
+                using var sp = new SFML.Graphics.Sprite(texSprite)
+                {
+                    Origin = new(texPma.Size.X / 2f, texPma.Size.Y / 2f),
+                    Position = new(view.Center.X, view.Center.Y),
+                    Scale = new(view.Size.X / texPma.Size.X, view.Size.Y / texPma.Size.Y),
+                    Rotation = view.Rotation
+                };
+
+                // 混合模式用直接覆盖的方式, 保证得到的图像区域是反预乘的颜色和透明度, 同时使用反预乘着色器
+                var st = SFML.Graphics.RenderStates.Default;
+                st.BlendMode = SrcOnlyBlendMode; // 用源的颜色和透明度直接覆盖
+                st.Shader = Shader.InversePma;
+
+                // 在最终结果上二次渲染非预乘画面
                 using var tex = GetRenderTexture();
+
+                // 将非预乘结果覆盖式绘制在目标对象上, 注意背景色应该用非预乘的
                 tex.Clear(ExportArgs.BackgroundColor);
-            foreach (var spine in spinesToRender) tex.Draw(spine);
+                tex.Draw(sp, st);
                 tex.Display();
                 return new(tex.Texture.CopyToImage());
             }
+            else
+            {
+                return new(texPma.Texture.CopyToImage());
+            }
+        }
 
         /// <summary>
         /// 每个模型在同一个画面进行导出

SpineViewer/Exporter/Implementations/ExportArgs/CustomExportArgs.cs

@@ -1,6 +1,4 @@
-using FFMpegCore.Enums;
+using System;
-using FFMpegCore;
-using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;

SpineViewer/Exporter/Implementations/ExportArgs/FFmpegVideoExportArgs.cs

@@ -19,7 +19,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// <summary>
         /// 文件格式
         /// </summary>
-        [Category("[2] FFmpeg 基本参数"), DisplayName("文件格式"), Description("文件格式")]
+        [Category("[2] FFmpeg 基本参数"), DisplayName("文件格式"), Description("-f, 文件格式")]
         public abstract string Format { get; }
 
         /// <summary>

SpineViewer/Exporter/Implementations/ExportArgs/GifExportArgs.cs

@@ -16,9 +16,6 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
     {
         public GifExportArgs(Size resolution, SFML.Graphics.View view, bool renderSelectedOnly) : base(resolution, view, renderSelectedOnly) 
         {
-            // 给一个纯白的背景
-            BackgroundColor = new(255, 255, 255, 0);
-
             // GIF 的帧率不能太高, 超过 50 帧反而会变慢
             FPS = 12;
         }

SpineViewer/Exporter/Implementations/ExportArgs/MkvExportArgs.cs

@@ -16,7 +16,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
     {
         public MkvExportArgs(Size resolution, SFML.Graphics.View view, bool renderSelectedOnly) : base(resolution, view, renderSelectedOnly)
         {
-            BackgroundColor = new(0, 255, 0, 0);
+            BackgroundColor = new(0, 255, 0);
         }
 
         public override string Format => "matroska";
@@ -28,7 +28,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("libx264", "libx265", "libvpx-vp9", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("编码器"), Description("要使用的编码器")]
+        [Category("[3] 格式参数"), DisplayName("编码器"), Description("-c:v, 要使用的编码器")]
         public string Codec { get; set; } = "libx265";
 
         /// <summary>
@@ -43,7 +43,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("yuv420p", "yuv422p", "yuv444p", "yuva420p", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("要使用的像素格式")]
+        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("-pix_fmt, 要使用的像素格式")]
         public string PixelFormat { get; set; } = "yuv444p";
 
         public override void SetOutputOptions(FFMpegArgumentOptions options)

SpineViewer/Exporter/Implementations/ExportArgs/MovExportArgs.cs

@@ -16,7 +16,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
     {
         public MovExportArgs(Size resolution, SFML.Graphics.View view, bool renderSelectedOnly) : base(resolution, view, renderSelectedOnly)
         {
-            BackgroundColor = new(0, 255, 0, 0);
+            BackgroundColor = new(0, 255, 0);
         }
 
         public override string Format => "mov";
@@ -28,13 +28,13 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("prores_ks", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("编码器"), Description("要使用的编码器")]
+        [Category("[3] 格式参数"), DisplayName("编码器"), Description("-c:v, 要使用的编码器")]
         public string Codec { get; set; } = "prores_ks";
 
         /// <summary>
         /// 预设
         /// </summary>
-        [StringEnumConverter.StandardValues("auto", "proxy", "lt", "standard", "hq", "4444", "444xq")]
+        [StringEnumConverter.StandardValues("auto", "proxy", "lt", "standard", "hq", "4444", "4444xq")]
         [TypeConverter(typeof(StringEnumConverter))]
         [Category("[3] 格式参数"), DisplayName("预设"), Description("-profile, 预设配置")]
         public string Profile { get; set; } = "auto";
@@ -44,7 +44,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("yuv422p10le", "yuv444p10le", "yuva444p10le", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("要使用的像素格式")]
+        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("-pix_fmt, 要使用的像素格式")]
         public string PixelFormat { get; set; } = "yuva444p10le";
 
         public override void SetOutputOptions(FFMpegArgumentOptions options)

SpineViewer/Exporter/Implementations/ExportArgs/Mp4ExportArgs.cs

@@ -16,7 +16,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
     {
         public Mp4ExportArgs(Size resolution, SFML.Graphics.View view, bool renderSelectedOnly) : base(resolution, view, renderSelectedOnly)
         {
-            BackgroundColor = new(0, 255, 0, 0);
+            BackgroundColor = new(0, 255, 0);
         }
 
         public override string Format => "mp4";
@@ -28,7 +28,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("libx264", "libx265", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("编码器"), Description("要使用的编码器")]
+        [Category("[3] 格式参数"), DisplayName("编码器"), Description("-c:v, 要使用的编码器")]
         public string Codec { get; set; } = "libx264";
 
         /// <summary>
@@ -43,7 +43,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("yuv420p", "yuv422p", "yuv444p", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("要使用的像素格式")]
+        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("-pix_fmt, 要使用的像素格式")]
         public string PixelFormat { get; set; } = "yuv444p";
 
         public override void SetOutputOptions(FFMpegArgumentOptions options)

SpineViewer/Exporter/Implementations/ExportArgs/VideoExportArgs.cs

@@ -1,6 +1,4 @@
-using FFMpegCore.Enums;
+using System;
-using FFMpegCore;
-using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -19,7 +17,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// <summary>
         /// 导出时长
         /// </summary>
-        [Category("[1] 视频参数"), DisplayName("时长"), Description("可以从模型列表查看动画时长, 如果小于 0, 则在逐个导出时每个模型使用各自的当前动画时长")]
+        [Category("[1] 视频参数"), DisplayName("时长"), Description("可以从模型列表查看动画时长, 如果小于 0, 则在逐个导出时每个模型使用各自的所有轨道动画时长最大值")]
         public float Duration 
         { 
             get => duration;

SpineViewer/Exporter/Implementations/ExportArgs/WebmExportArgs.cs

@@ -29,13 +29,13 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("libvpx-vp9", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("编码器"), Description("要使用的编码器")]
+        [Category("[3] 格式参数"), DisplayName("编码器"), Description("-c:v, 要使用的编码器")]
         public string Codec { get; set; } = "libvpx-vp9";
 
         /// <summary>
         /// CRF
         /// </summary>
-        [Category("[3] 格式参数"), DisplayName("CRF"), Description("Constant Rate Factor, 取值范围 0-63, 建议范围 18-28, 默认取值 23, 数值越小则输出质量越高")]
+        [Category("[3] 格式参数"), DisplayName("CRF"), Description("-crf, 取值范围 0-63, 建议范围 18-28, 默认取值 23, 数值越小则输出质量越高")]
         public int CRF { get => crf; set => crf = Math.Clamp(value, 0, 63); }
         private int crf = 23;
 
@@ -44,7 +44,7 @@ namespace SpineViewer.Exporter.Implementations.ExportArgs
         /// </summary>
         [StringEnumConverter.StandardValues("yuv420p", "yuv422p", "yuv444p", "yuva420p", Customizable = true)]
         [TypeConverter(typeof(StringEnumConverter))]
-        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("要使用的像素格式")]
+        [Category("[3] 格式参数"), DisplayName("像素格式"), Description("-pix_fmt, 要使用的像素格式")]
         public string PixelFormat { get; set; } = "yuva420p";
 
         public override void SetOutputOptions(FFMpegArgumentOptions options)

SpineViewer/Exporter/Implementations/Exporter/FFmpegVideoExporter.cs

@@ -7,7 +7,6 @@ using System.ComponentModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
-using FFMpegCore.Arguments;
 using System.Diagnostics;
 
 namespace SpineViewer.Exporter.Implementations.Exporter

SpineViewer/Exporter/Implementations/Exporter/VideoExporter.cs

@@ -23,9 +23,9 @@ namespace SpineViewer.Exporter.Implementations.Exporter
         {
             var args = (VideoExportArgs)ExportArgs;
 
-            // 独立导出时如果 args.Duration 小于 0 则使用 Track0 的动画时长
+            // 独立导出时如果 args.Duration 小于 0 则使用所有轨道上动画时长最大值
             var duration = args.Duration;
-            if (duration < 0) duration = spine.GetAnimationDuration(spine.Track0Animation); // TODO: 也许可以使用所有轨道的最大值
+            if (duration < 0) duration = spine.GetTrackIndices().Select(i => spine.GetAnimationDuration(spine.GetAnimation(i))).Max();
 
             float delta = 1f / args.FPS;
             int total = Math.Max(1, (int)(duration * args.FPS)); // 至少导出 1 帧
@@ -75,7 +75,7 @@ namespace SpineViewer.Exporter.Implementations.Exporter
         public override void Export(Spine.Spine[] spines, BackgroundWorker? worker = null)
         {
             // 导出视频格式需要把模型时间都重置到 0
-            foreach (var spine in spines) spine.Track0Animation = spine.Track0Animation; // TODO: 多轨道重置
+            foreach (var spine in spines) spine.ResetAnimationsTime();
             base.Export(spines, worker);
         }
     }

SpineViewer/MainForm.Designer.cs

@@ -39,10 +39,10 @@
             toolStripMenuItem_ExportFrame = new ToolStripMenuItem();
             toolStripMenuItem_ExportFrameSequence = new ToolStripMenuItem();
             toolStripMenuItem_ExportGif = new ToolStripMenuItem();
-            toolStripMenuItem_ExportMkv = new ToolStripMenuItem();
             toolStripMenuItem_ExportMp4 = new ToolStripMenuItem();
-            toolStripMenuItem_ExportMov = new ToolStripMenuItem();
             toolStripMenuItem_ExportWebm = new ToolStripMenuItem();
+            toolStripMenuItem_ExportMkv = new ToolStripMenuItem();
+            toolStripMenuItem_ExportMov = new ToolStripMenuItem();
             toolStripMenuItem_ExportCustom = new ToolStripMenuItem();
             toolStripSeparator2 = new ToolStripSeparator();
             toolStripMenuItem_Exit = new ToolStripMenuItem();
@@ -115,27 +115,27 @@
             // 
             toolStripMenuItem_Open.Name = "toolStripMenuItem_Open";
             toolStripMenuItem_Open.ShortcutKeys = Keys.Control | Keys.O;
-            toolStripMenuItem_Open.Size = new Size(270, 34);
+            toolStripMenuItem_Open.Size = new Size(254, 34);
             toolStripMenuItem_Open.Text = "打开(&O)...";
             toolStripMenuItem_Open.Click += toolStripMenuItem_Open_Click;
             // 
             // toolStripMenuItem_BatchOpen
             // 
             toolStripMenuItem_BatchOpen.Name = "toolStripMenuItem_BatchOpen";
-            toolStripMenuItem_BatchOpen.Size = new Size(270, 34);
+            toolStripMenuItem_BatchOpen.Size = new Size(254, 34);
             toolStripMenuItem_BatchOpen.Text = "批量打开(&B)...";
             toolStripMenuItem_BatchOpen.Click += toolStripMenuItem_BatchOpen_Click;
             // 
             // toolStripSeparator1
             // 
             toolStripSeparator1.Name = "toolStripSeparator1";
-            toolStripSeparator1.Size = new Size(267, 6);
+            toolStripSeparator1.Size = new Size(251, 6);
             // 
             // toolStripMenuItem_Export
             // 
             toolStripMenuItem_Export.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItem_ExportFrame, toolStripMenuItem_ExportFrameSequence, toolStripMenuItem_ExportGif, toolStripMenuItem_ExportMp4, toolStripMenuItem_ExportWebm, toolStripMenuItem_ExportMkv, toolStripMenuItem_ExportMov, toolStripMenuItem_ExportCustom });
             toolStripMenuItem_Export.Name = "toolStripMenuItem_Export";
-            toolStripMenuItem_Export.Size = new Size(270, 34);
+            toolStripMenuItem_Export.Size = new Size(254, 34);
             toolStripMenuItem_Export.Text = "导出(&E)";
             // 
             // toolStripMenuItem_ExportFrame
@@ -159,13 +159,6 @@
             toolStripMenuItem_ExportGif.Text = "GIF...";
             toolStripMenuItem_ExportGif.Click += toolStripMenuItem_Export_Click;
             // 
-            // toolStripMenuItem_ExportMkv
-            // 
-            toolStripMenuItem_ExportMkv.Name = "toolStripMenuItem_ExportMkv";
-            toolStripMenuItem_ExportMkv.Size = new Size(288, 34);
-            toolStripMenuItem_ExportMkv.Text = "MKV...";
-            toolStripMenuItem_ExportMkv.Click += toolStripMenuItem_Export_Click;
-            // 
             // toolStripMenuItem_ExportMp4
             // 
             toolStripMenuItem_ExportMp4.Name = "toolStripMenuItem_ExportMp4";
@@ -173,13 +166,6 @@
             toolStripMenuItem_ExportMp4.Text = "MP4...";
             toolStripMenuItem_ExportMp4.Click += toolStripMenuItem_Export_Click;
             // 
-            // toolStripMenuItem_ExportMov
-            // 
-            toolStripMenuItem_ExportMov.Name = "toolStripMenuItem_ExportMov";
-            toolStripMenuItem_ExportMov.Size = new Size(288, 34);
-            toolStripMenuItem_ExportMov.Text = "MOV...";
-            toolStripMenuItem_ExportMov.Click += toolStripMenuItem_Export_Click;
-            // 
             // toolStripMenuItem_ExportWebm
             // 
             toolStripMenuItem_ExportWebm.Name = "toolStripMenuItem_ExportWebm";
@@ -187,6 +173,20 @@
             toolStripMenuItem_ExportWebm.Text = "WebM...";
             toolStripMenuItem_ExportWebm.Click += toolStripMenuItem_Export_Click;
             // 
+            // toolStripMenuItem_ExportMkv
+            // 
+            toolStripMenuItem_ExportMkv.Name = "toolStripMenuItem_ExportMkv";
+            toolStripMenuItem_ExportMkv.Size = new Size(288, 34);
+            toolStripMenuItem_ExportMkv.Text = "MKV...";
+            toolStripMenuItem_ExportMkv.Click += toolStripMenuItem_Export_Click;
+            // 
+            // toolStripMenuItem_ExportMov
+            // 
+            toolStripMenuItem_ExportMov.Name = "toolStripMenuItem_ExportMov";
+            toolStripMenuItem_ExportMov.Size = new Size(288, 34);
+            toolStripMenuItem_ExportMov.Text = "MOV...";
+            toolStripMenuItem_ExportMov.Click += toolStripMenuItem_Export_Click;
+            // 
             // toolStripMenuItem_ExportCustom
             // 
             toolStripMenuItem_ExportCustom.Name = "toolStripMenuItem_ExportCustom";
@@ -197,13 +197,13 @@
             // toolStripSeparator2
             // 
             toolStripSeparator2.Name = "toolStripSeparator2";
-            toolStripSeparator2.Size = new Size(267, 6);
+            toolStripSeparator2.Size = new Size(251, 6);
             // 
             // toolStripMenuItem_Exit
             // 
             toolStripMenuItem_Exit.Name = "toolStripMenuItem_Exit";
             toolStripMenuItem_Exit.ShortcutKeys = Keys.Alt | Keys.F4;
-            toolStripMenuItem_Exit.Size = new Size(270, 34);
+            toolStripMenuItem_Exit.Size = new Size(254, 34);
             toolStripMenuItem_Exit.Text = "退出(&X)";
             toolStripMenuItem_Exit.Click += toolStripMenuItem_Exit_Click;
             // 
@@ -271,7 +271,7 @@
             rtbLog.Margin = new Padding(3, 2, 3, 2);
             rtbLog.Name = "rtbLog";
             rtbLog.ReadOnly = true;
-            rtbLog.Size = new Size(1758, 146);
+            rtbLog.Size = new Size(1758, 120);
             rtbLog.TabIndex = 0;
             rtbLog.Text = "";
             rtbLog.WordWrap = false;
@@ -295,7 +295,7 @@
             splitContainer_MainForm.Panel2.Controls.Add(rtbLog);
             splitContainer_MainForm.Panel2.Cursor = Cursors.Default;
             splitContainer_MainForm.Size = new Size(1758, 1097);
-            splitContainer_MainForm.SplitterDistance = 943;
+            splitContainer_MainForm.SplitterDistance = 969;
             splitContainer_MainForm.SplitterWidth = 8;
             splitContainer_MainForm.TabIndex = 3;
             splitContainer_MainForm.TabStop = false;
@@ -319,7 +319,7 @@
             // 
             splitContainer_Functional.Panel2.Controls.Add(groupBox_Preview);
             splitContainer_Functional.Panel2.Cursor = Cursors.Default;
-            splitContainer_Functional.Size = new Size(1758, 943);
+            splitContainer_Functional.Size = new Size(1758, 969);
             splitContainer_Functional.SplitterDistance = 759;
             splitContainer_Functional.SplitterWidth = 8;
             splitContainer_Functional.TabIndex = 2;
@@ -343,7 +343,7 @@
             // 
             splitContainer_Information.Panel2.Controls.Add(splitContainer_Config);
             splitContainer_Information.Panel2.Cursor = Cursors.Default;
-            splitContainer_Information.Size = new Size(759, 943);
+            splitContainer_Information.Size = new Size(759, 969);
             splitContainer_Information.SplitterDistance = 354;
             splitContainer_Information.SplitterWidth = 8;
             splitContainer_Information.TabIndex = 1;
@@ -357,7 +357,7 @@
             groupBox_SkelList.Dock = DockStyle.Fill;
             groupBox_SkelList.Location = new Point(0, 0);
             groupBox_SkelList.Name = "groupBox_SkelList";
-            groupBox_SkelList.Size = new Size(354, 943);
+            groupBox_SkelList.Size = new Size(354, 969);
             groupBox_SkelList.TabIndex = 0;
             groupBox_SkelList.TabStop = false;
             groupBox_SkelList.Text = "模型列表";
@@ -368,7 +368,7 @@
             spineListView.Location = new Point(3, 26);
             spineListView.Name = "spineListView";
             spineListView.PropertyGrid = propertyGrid_Spine;
-            spineListView.Size = new Size(348, 914);
+            spineListView.Size = new Size(348, 940);
             spineListView.TabIndex = 0;
             // 
             // propertyGrid_Spine
@@ -377,7 +377,7 @@
             propertyGrid_Spine.HelpVisible = false;
             propertyGrid_Spine.Location = new Point(3, 26);
             propertyGrid_Spine.Name = "propertyGrid_Spine";
-            propertyGrid_Spine.Size = new Size(391, 580);
+            propertyGrid_Spine.Size = new Size(391, 606);
             propertyGrid_Spine.TabIndex = 0;
             propertyGrid_Spine.ToolbarVisible = false;
             propertyGrid_Spine.PropertyValueChanged += propertyGrid_PropertyValueChanged;
@@ -400,7 +400,7 @@
             // 
             splitContainer_Config.Panel2.Controls.Add(groupBox_SkelConfig);
             splitContainer_Config.Panel2.Cursor = Cursors.Default;
-            splitContainer_Config.Size = new Size(397, 943);
+            splitContainer_Config.Size = new Size(397, 969);
             splitContainer_Config.SplitterDistance = 326;
             splitContainer_Config.SplitterWidth = 8;
             splitContainer_Config.TabIndex = 0;
@@ -436,7 +436,7 @@
             groupBox_SkelConfig.Dock = DockStyle.Fill;
             groupBox_SkelConfig.Location = new Point(0, 0);
             groupBox_SkelConfig.Name = "groupBox_SkelConfig";
-            groupBox_SkelConfig.Size = new Size(397, 609);
+            groupBox_SkelConfig.Size = new Size(397, 635);
             groupBox_SkelConfig.TabIndex = 0;
             groupBox_SkelConfig.TabStop = false;
             groupBox_SkelConfig.Text = "模型参数";
@@ -447,7 +447,7 @@
             groupBox_Preview.Dock = DockStyle.Fill;
             groupBox_Preview.Location = new Point(0, 0);
             groupBox_Preview.Name = "groupBox_Preview";
-            groupBox_Preview.Size = new Size(991, 943);
+            groupBox_Preview.Size = new Size(991, 969);
             groupBox_Preview.TabIndex = 1;
             groupBox_Preview.TabStop = false;
             groupBox_Preview.Text = "预览画面";
@@ -458,7 +458,7 @@
             spinePreviewer.Location = new Point(3, 26);
             spinePreviewer.Name = "spinePreviewer";
             spinePreviewer.PropertyGrid = propertyGrid_Previewer;
-            spinePreviewer.Size = new Size(985, 914);
+            spinePreviewer.Size = new Size(985, 940);
             spinePreviewer.SpineListView = spineListView;
             spinePreviewer.TabIndex = 0;
             // 

SpineViewer/MainForm.cs

@@ -1,13 +1,7 @@
-using FFMpegCore.Pipes;
+using NLog;
-using FFMpegCore;
-using NLog;
-using SFML.System;
 using SpineViewer.Spine;
 using System.ComponentModel;
 using System.Diagnostics;
-using System.Text.Json;
-using System.Text.Json.Nodes;
-using FFMpegCore.Enums;
 using SpineViewer.Exporter;
 
 namespace SpineViewer
@@ -34,7 +28,7 @@ namespace SpineViewer
             // 执行一些初始化工作
             try
             {
-                Spine.Shader.Init();
+                Shader.Init();
             }
             catch (Exception ex)
             {
@@ -133,9 +127,47 @@ namespace SpineViewer
             progressDialog.ShowDialog();
         }
 
+        //private System.Windows.Forms.Timer timer = new();
+        //private PetForm pet = new PetForm();
+        //private IntPtr screenDC;
+        //private IntPtr memDC;
         private void toolStripMenuItem_ManageResource_Click(object sender, EventArgs e)
         {
+        //    screenDC = Win32.GetDC(IntPtr.Zero);
+        //    memDC = Win32.CreateCompatibleDC(screenDC);
+        //    pet.Show();
+        //    timer.Tick += Timer_Tick;
+        //    timer.Enabled = true;
+        //    timer.Interval = 50;
+        //    timer.Start();
+        //}
 
+        //private void Timer_Tick(object? sender, EventArgs e)
+        //{
+        //    using var tex = new SFML.Graphics.RenderTexture((uint)pet.Width, (uint)pet.Height);
+        //    var v = spinePreviewer.GetView();
+        //    tex.SetView(v);
+        //    tex.Clear(new SFML.Graphics.Color(0, 0, 0, 0));
+        //    lock (spineListView.Spines)
+        //    {
+        //        foreach (var sp in spineListView.Spines)
+        //            tex.Draw(sp);
+        //    }
+        //    tex.Display();
+        //    using var frame = new SFMLImageVideoFrame(tex.Texture.CopyToImage());
+        //    using var bitmap = frame.CopyToBitmap();
+
+        //    var newBitmap = bitmap.GetHbitmap(Color.FromArgb(0));
+        //    var oldBitmap = Win32.SelectObject(memDC, newBitmap);
+
+        //    Win32.SIZE size = new Win32.SIZE { cx = pet.Width, cy = pet.Height };
+        //    Win32.POINT srcPos = new Win32.POINT { x = 0, y = 0 };
+        //    Win32.BLENDFUNCTION blend = new Win32.BLENDFUNCTION { BlendOp = 0, BlendFlags = 0, SourceConstantAlpha = 255, AlphaFormat = Win32.AC_SRC_ALPHA };
+
+        //    Win32.UpdateLayeredWindow(pet.Handle, screenDC, IntPtr.Zero, ref size, memDC, ref srcPos, 0, ref blend, Win32.ULW_ALPHA);
+
+        //    Win32.SelectObject(memDC, oldBitmap);
+        //    Win32.DeleteObject(newBitmap);
         }
 
         private void toolStripMenuItem_About_Click(object sender, EventArgs e)

SpineViewer/PetForm.Designer.cs

@@ -0,0 +1,50 @@
+namespace SpineViewer
+{
+    partial class PetForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            SuspendLayout();
+            // 
+            // PetForm
+            // 
+            AutoScaleMode = AutoScaleMode.None;
+            ClientSize = new Size(490, 456);
+            ControlBox = false;
+            MaximizeBox = false;
+            MinimizeBox = false;
+            Name = "PetForm";
+            ShowIcon = false;
+            ShowInTaskbar = false;
+            StartPosition = FormStartPosition.Manual;
+            Text = "PetForm";
+            ResumeLayout(false);
+        }
+
+        #endregion
+    }
+}

SpineViewer/PetForm.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace SpineViewer
+{
+    public partial class PetForm: Form
+    {
+        public PetForm()
+        {
+            InitializeComponent();
+        }
+
+        protected override CreateParams CreateParams
+        {
+            get
+            {
+                //var style = Win32.GetWindowLong(hWnd, Win32.GWL_STYLE) | Win32.WS_POPUP;
+                //var exStyle = Win32.GetWindowLong(hWnd, Win32.GWL_EXSTYLE) | Win32.WS_EX_LAYERED | Win32.WS_EX_TOOLWINDOW | Win32.WS_EX_TOPMOST;
+                //Win32.SetWindowLong(hWnd, Win32.GWL_STYLE, style);
+                //Win32.SetWindowLong(hWnd, Win32.GWL_EXSTYLE, exStyle);
+                //Win32.SetLayeredWindowAttributes(hWnd, crKey, 255, Win32.LWA_COLORKEY | Win32.LWA_ALPHA);
+                //Win32.SetWindowPos(hWnd, Win32.HWND_TOPMOST, 0, 0, 0, 0, Win32.SWP_NOMOVE | Win32.SWP_NOSIZE);
+                var cp = base.CreateParams;
+                cp.ExStyle = Win32.WS_EX_LAYERED | Win32.WS_EX_TOPMOST;
+                cp.Style = Win32.WS_POPUP;
+                //cp.ExStyle |= Win32.WS_EX_LAYERED | Win32.WS_EX_TOOLWINDOW | Win32.WS_EX_TOPMOST;
+                return cp;
+            }
+        }
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            ;
+        }
+
+        protected override void OnPaintBackground(PaintEventArgs e)
+        {
+            ;
+        }
+    }
+}

SpineViewer/PetForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SpineViewer/SFMLExtension.cs

@@ -0,0 +1,73 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewer
+{
+    public static class SFMLExtension
+    {
+        /// <summary>
+        /// 获取 Winforms Bitmap 对象, 需要使用 Dispose 释放对象
+        /// </summary>
+        public static Bitmap CopyToBitmap(this SFML.Graphics.Image image)
+        {
+            image.SaveToMemory(out var imgBuffer, "bmp");
+            using var stream = new MemoryStream(imgBuffer);
+            using var bitmap = new Bitmap(stream);
+            return new(bitmap); // 必须重复构造一个副本才能摆脱对流的依赖, 否则之后使用会报错
+        }
+
+        /// <summary>
+        /// 获取 Winforms Bitmap 对象, 需要使用 Dispose 释放对象
+        /// </summary>
+        public static Bitmap CopyToBitmap(this SFML.Graphics.Texture texture)
+        {
+            using var image = texture.CopyToImage();
+            return CopyToBitmap(image);
+        }
+
+        /// <summary>
+        /// 获取某个包围盒下合适的视图
+        /// </summary>
+        public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, Padding padding)
+            => bounds.GetView((uint)resolution.Width, (uint)resolution.Height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
+
+        /// <summary>
+        /// 获取某个包围盒下合适的视图
+        /// </summary>
+        public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, Padding padding)
+            => bounds.GetView(width, height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
+
+        /// <summary>
+        /// 获取某个包围盒下合适的视图
+        /// </summary>
+        public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
+            => bounds.GetView((uint)resolution.Width, (uint)resolution.Height, paddingL, paddingR, paddingT, paddingB);
+
+        /// <summary>
+        /// 获取某个包围盒下合适的视图
+        /// </summary>
+        public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
+        {
+            float sizeX = bounds.Width;
+            float sizeY = bounds.Height;
+            float innerW = width - paddingL - paddingR;
+            float innerH = height - paddingT - paddingB;
+
+            float scale = 1;
+            if (sizeY / sizeX < innerH / innerW)
+                scale = sizeX / innerW; // 相同的 X, 视窗 Y 更大
+            else
+                scale = sizeY / innerH; // 相同的 Y, 视窗 X 更大
+
+            var x = bounds.X + bounds.Width / 2 + (paddingL - (float)paddingR) * scale;
+            var y = bounds.Y + bounds.Height / 2 + (paddingT - (float)paddingB) * scale;
+            var viewX = width * scale;
+            var viewY = height * scale;
+
+            return new(new(x, y), new(viewX, -viewY));
+        }
+    }
+}

SpineViewer/Shader.cs

@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewer
+{
+    public static class Shader
+    {
+        /// <summary>
+        /// 用于非预乘纹理的 fragment shader, 乘上了插值后的透明度用于实现透明度变化(插值预乘), 并且输出预乘后的像素值
+        /// </summary>
+        private const string FRAGMENT_VertexAlpha = 
+            "uniform sampler2D t;" +
+            "void main() { vec4 p = texture(t, gl_TexCoord[0].xy);" +
+            "p.rgb *= p.a * gl_Color.a;" +
+            "gl_FragColor = gl_Color * p; }"
+        ;
+
+        /// <summary>
+        /// 用于预乘纹理的 fragment shader, 乘上了插值后的透明度用于实现透明度变化(插值预乘)
+        /// </summary>
+        private const string FRAGMENT_VertexAlphaPma = 
+            "uniform sampler2D t;" +
+            "void main() { vec4 p = texture(t, gl_TexCoord[0].xy);" +
+            "p.rgb *= gl_Color.a;" +
+            "gl_FragColor = gl_Color * p; }"
+        ;
+
+        /// <summary>
+        /// 预乘转非预乘 fragment shader
+        /// </summary>
+        private const string FRAGMENT_InvPma = 
+            "uniform sampler2D t;" +
+            "void main() { vec4 p = texture(t, gl_TexCoord[0].xy);" +
+            "if (p.a > 0) p.rgb /= max(max(max(p.r, p.g), p.b), p.a);" +
+            "gl_FragColor = p; }"
+        ;
+
+        /// <summary>
+        /// 考虑了顶点透明度变化的着色器, 输入是非预乘纹理像素, 输出是预乘像素
+        /// </summary>
+        private static SFML.Graphics.Shader? VertexAlpha = null;
+
+        /// <summary>
+        /// 考虑了顶点透明度变化的着色器, 输入和输出均是预乘像素值
+        /// </summary>
+        private static SFML.Graphics.Shader? VertexAlphaPma = null;
+
+        /// <summary>
+        /// 反预乘着色器, 用于得到正确透明度的非预乘画面
+        /// </summary>
+        public static SFML.Graphics.Shader? InversePma { get; private set; }
+
+        /// <summary>
+        /// 加载 Shader, 可能会存在异常导致着色器加载失败
+        /// </summary>
+        /// <exception cref="SFML.LoadingFailedException"></exception>
+        public static void Init()
+        {
+            VertexAlpha = SFML.Graphics.Shader.FromString(null, null, FRAGMENT_VertexAlpha);
+            VertexAlphaPma = SFML.Graphics.Shader.FromString(null, null, FRAGMENT_VertexAlphaPma);
+            InversePma = SFML.Graphics.Shader.FromString(null, null, FRAGMENT_InvPma);
+        }
+
+        /// <summary>
+        /// 获取绘制 Spine 的着色器
+        /// </summary>
+        /// <param name="pma">纹理是否是预乘的</param>
+        /// <param name="twoColor">是否是双色着色的(TODO)</param>
+        public static SFML.Graphics.Shader? GetSpineShader(bool pma, bool twoColor = false)
+        {
+            if (pma)
+                return VertexAlphaPma;
+            else
+                return VertexAlpha;
+        }
+    }
+}

SpineViewer/Spine/AnimationTracks.cs

@@ -0,0 +1,143 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewer.Spine
+{
+    /// <summary>
+    /// 对轨道索引的包装类, 能够在面板上显示例如时长的属性, 但是处理该属性时按字符串去处理, 例如 ToString 和判断对象相等都是用动画名称实现逻辑
+    /// </summary>
+    /// <param name="spine"></param>
+    /// <param name="i"></param>
+    [TypeConverter(typeof(TrackWrapperConverter))]
+    public class TrackWrapper(Spine spine, int i)
+    {
+        private readonly Spine spine = spine;
+
+        [Browsable(false)]
+        public int Index { get; } = i;
+
+        [DisplayName("时长")]
+        public float Duration => spine.GetAnimationDuration(spine.GetAnimation(Index));
+
+        /// <summary>
+        /// 实现了默认的转为字符串的方式
+        /// </summary>
+        public override string ToString() => spine.GetAnimation(Index);
+
+        /// <summary>
+        /// 影响了属性面板的判断, 当动画名称相同的时候认为两个对象是相同的, 这样属性面板可以在多选的时候正确显示相同取值的内容
+        /// </summary>
+        public override bool Equals(object? obj)
+        {
+            if (obj is TrackWrapper) return ToString() == obj.ToString();
+            return base.Equals(obj);
+        }
+
+        /// <summary>
+        /// 哈希码需要和 Equals 行为类似
+        /// </summary>
+        public override int GetHashCode() => (typeof(TrackWrapper).FullName + ToString()).GetHashCode();
+    }
+
+    /// <summary>
+    /// 轨道属性描述符, 实现对属性的读取和赋值
+    /// </summary>
+    /// <param name="i">轨道索引</param>
+    public class TrackWrapperPropertyDescriptor(int i) : PropertyDescriptor($"Track{i}", [new DisplayNameAttribute($"轨道 {i}")])
+    {
+        private readonly int idx = i;
+
+        public override Type ComponentType => typeof(AnimationTracks);
+        public override bool IsReadOnly => false;
+        public override Type PropertyType => typeof(TrackWrapper);
+        public override bool CanResetValue(object component) => false;
+        public override void ResetValue(object component) { }
+        public override bool ShouldSerializeValue(object component) => false;
+
+        /// <summary>
+        /// 得到一个轨道包装类, 允许用户查看或者修改具体的属性值, 这个地方决定了在面板上看到的是一个对象及其属性
+        /// </summary>
+        public override object? GetValue(object? component) 
+        {
+            if (component is AnimationTracks tracks)
+                return tracks.GetTrackWrapper(idx);
+            return null;
+        }
+
+        /// <summary>
+        /// 允许通过字符串赋值修改该轨道的动画, 这里决定了当其他地方的调用 (比如 Converter) 通过 value 来设置属性值的时候应该怎么处理
+        /// </summary>
+        public override void SetValue(object? component, object? value) 
+        {
+            if (component is AnimationTracks tracks)
+            {
+                if (value is string s)
+                    tracks.Spine.SetAnimation(idx, s); // tracks.SetTrackWrapper(idx, s);
+            }
+        }
+    }
+
+    /// <summary>
+    /// AnimationTracks 动态类型包装类, 用于提供对 Spine 对象多轨道动画的访问能力, 不同轨道将动态生成属性
+    /// </summary>
+    /// <param name="spine">关联的 Spine 对象</param>
+    public class AnimationTracks(Spine spine) : ICustomTypeDescriptor
+    {
+        private static readonly Dictionary<int, TrackWrapperPropertyDescriptor> pdCache = [];
+
+        public Spine Spine { get; } = spine;
+        private readonly Dictionary<int, TrackWrapper> trackWrapperProperties = [];
+
+        // XXX: 必须实现 ICustomTypeDescriptor 接口, 不能继承 CustomTypeDescriptor, 似乎继承下来的东西会有问题, 导致某些调用不正确
+
+        public AttributeCollection GetAttributes() => TypeDescriptor.GetAttributes(this, true);
+        public string? GetClassName() => TypeDescriptor.GetClassName(this, true);
+        public string? GetComponentName() => TypeDescriptor.GetComponentName(this, true);
+        public TypeConverter? GetConverter() => TypeDescriptor.GetConverter(this, true);
+        public EventDescriptor? GetDefaultEvent() => TypeDescriptor.GetDefaultEvent(this, true);
+        public PropertyDescriptor? GetDefaultProperty() => TypeDescriptor.GetDefaultProperty(this, true);
+        public object? GetEditor(Type editorBaseType) => TypeDescriptor.GetEditor(this, editorBaseType, true);
+        public EventDescriptorCollection GetEvents() => TypeDescriptor.GetEvents(this, true);
+        public EventDescriptorCollection GetEvents(Attribute[]? attributes) => TypeDescriptor.GetEvents(this, attributes, true);
+        public object? GetPropertyOwner(PropertyDescriptor? pd) => this;
+        public PropertyDescriptorCollection GetProperties() => GetProperties(null);
+        public PropertyDescriptorCollection GetProperties(Attribute[]? attributes)
+        {
+            var props = new List<TrackWrapperPropertyDescriptor>();
+            foreach (var i in Spine.GetTrackIndices())
+            {
+                if (!pdCache.ContainsKey(i))
+                    pdCache[i] = new TrackWrapperPropertyDescriptor(i);
+                props.Add(pdCache[i]);
+            }
+            return new PropertyDescriptorCollection(props.ToArray());
+        }
+
+        /// <summary>
+        /// 访问 TrackWrapper 属性 <c>AnimationTracks.Track{i}</c>
+        /// </summary>
+        public TrackWrapper GetTrackWrapper(int i)
+        {
+            if (!trackWrapperProperties.ContainsKey(i))
+                trackWrapperProperties[i] = new TrackWrapper(Spine, i);
+            return trackWrapperProperties[i];
+        }
+
+        /// <summary>
+        /// 在属性面板悬停可以按轨道顺序显示动画名称
+        /// </summary>
+        public override string ToString() => $"[{string.Join(", ", Spine.GetTrackIndices().Select(Spine.GetAnimation))}]";
+
+        public override bool Equals(object? obj)
+        {
+            if (obj is AnimationTracks tracks) return ToString() == tracks.ToString();
+            return base.Equals(obj);
+        }
+
+        public override int GetHashCode() => (typeof(AnimationTracks).FullName + ToString()).GetHashCode();
+    }
+}

SpineViewer/Spine/BlendModeSFML.cs

@@ -7,36 +7,86 @@ using System.Threading.Tasks;
 namespace SpineViewer.Spine
 {
     /// <summary>
-    /// SFML 混合模式
+    /// 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 BlendModeSFML
     {
+        ///// <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 SFML.Graphics.BlendMode Normal = new(
+        //    SFML.Graphics.BlendMode.Factor.SrcAlpha,
+        //    SFML.Graphics.BlendMode.Factor.OneMinusSrcAlpha,
+        //    SFML.Graphics.BlendMode.Equation.Add,
+        //    SFML.Graphics.BlendMode.Factor.One,
+        //    SFML.Graphics.BlendMode.Factor.OneMinusSrcAlpha,
+        //    SFML.Graphics.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 SFML.Graphics.BlendMode Additive = new(
+        //    SFML.Graphics.BlendMode.Factor.SrcAlpha,
+        //    SFML.Graphics.BlendMode.Factor.One,
+        //    SFML.Graphics.BlendMode.Equation.Add,
+        //    SFML.Graphics.BlendMode.Factor.One,
+        //    SFML.Graphics.BlendMode.Factor.One,
+        //    SFML.Graphics.BlendMode.Equation.Add
+        //);
+
         /// <summary>
-        /// Alpha Blend
+        /// Normal Blend with PremultipliedAlpha
         /// <code>
-        /// res.c = src.c * src.a + dst.c * (1 - src.a)
+        /// [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 SFML.Graphics.BlendMode Normal = SFML.Graphics.BlendMode.Alpha;
+        public static readonly SFML.Graphics.BlendMode NormalPma = new(
+            SFML.Graphics.BlendMode.Factor.One,
+            SFML.Graphics.BlendMode.Factor.OneMinusSrcAlpha,
+            SFML.Graphics.BlendMode.Equation.Add,
+            SFML.Graphics.BlendMode.Factor.One,
+            SFML.Graphics.BlendMode.Factor.OneMinusSrcAlpha,
+            SFML.Graphics.BlendMode.Equation.Add
+        );
 
         /// <summary>
-        /// Additive Blend
+        /// Additive Blend with PremultipliedAlpha
         /// <code>
-        /// res.c = src.c * src.a + dst.c * 1
+        /// [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 SFML.Graphics.BlendMode Additive = SFML.Graphics.BlendMode.Add;
+        public static readonly SFML.Graphics.BlendMode AdditivePma = new(
+            SFML.Graphics.BlendMode.Factor.One,
+            SFML.Graphics.BlendMode.Factor.One,
+            SFML.Graphics.BlendMode.Equation.Add,
+            SFML.Graphics.BlendMode.Factor.One,
+            SFML.Graphics.BlendMode.Factor.One,
+            SFML.Graphics.BlendMode.Equation.Add
+        );
 
         /// <summary>
-        /// Multiply Blend (PremultipliedAlpha Only)
+        /// 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 SFML.Graphics.BlendMode Multiply = new(
+        public static readonly SFML.Graphics.BlendMode MultiplyPma = new(
             SFML.Graphics.BlendMode.Factor.DstColor,
             SFML.Graphics.BlendMode.Factor.OneMinusSrcAlpha,
             SFML.Graphics.BlendMode.Equation.Add,
@@ -46,13 +96,13 @@ namespace SpineViewer.Spine
         );
 
         /// <summary>
-        /// Screen Blend (PremultipliedAlpha Only)
+        /// 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 SFML.Graphics.BlendMode Screen = new(
+        public static readonly SFML.Graphics.BlendMode ScreenPma = new(
             SFML.Graphics.BlendMode.Factor.One,
             SFML.Graphics.BlendMode.Factor.OneMinusSrcColor,
             SFML.Graphics.BlendMode.Equation.Add,

SpineViewer/Spine/Implementations/Spine/Spine21.cs

@@ -109,18 +109,16 @@ namespace SpineViewer.Spine.Implementations.Spine
                 var pos = position;
                 var fX = flipX;
                 var fY = flipY;
-                var animation = track0Animation; // TODO: 适配多轨道
+                var animations = animationState.Tracks.Where(te => te is not null).Select(te => te.Animation.Name).ToArray();
-                var sk = skin;
 
-                var val = Math.Max(value, SCALE_MIN);
                 if (skeletonBinary is not null)
                 {
-                    skeletonBinary.Scale = val;
+                    skeletonBinary.Scale = value;
                     skeletonData = skeletonBinary.ReadSkeletonData(SkelPath);
                 }
                 else if (skeletonJson is not null)
                 {
-                    skeletonJson.Scale = val;
+                    skeletonJson.Scale = value;
                     skeletonData = skeletonJson.ReadSkeletonData(SkelPath);
                 }
 
@@ -133,8 +131,8 @@ namespace SpineViewer.Spine.Implementations.Spine
                 position = pos;
                 flipX = fX;
                 flipY = fY;
-                track0Animation = animation; // TODO: 适配多轨道
+                foreach (var s in loadedSkins) addSkin(s);
-                skin = sk;
+                for (int i = 0; i < animations.Length; i++) setAnimation(i, animations[i]);
             }
         }
 
@@ -160,29 +158,35 @@ namespace SpineViewer.Spine.Implementations.Spine
             set => skeleton.FlipY = value;
         }
 
-        protected override string skin
+        protected override void addSkin(string name)
         {
-            get => skeleton.Skin?.Name ?? "default";
+            if (!skinNames.Contains(name)) return;
-            set
+            skeleton.SetSkin(name); // XXX: 3.7 及以下不支持 AddSkin
-            {
-                if (!skinNames.Contains(value)) return;
-                skeleton.SetSkin(value);
             skeleton.SetSlotsToSetupPose();
         }
+
+        protected override void clearSkin()
+        {
+            skeleton.SetSkin(skeletonData.DefaultSkin);
+            skeleton.SetSlotsToSetupPose();
         }
 
-        protected override string track0Animation
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks[i] is not null).ToArray();
+
+        protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
+
+        protected override void setAnimation(int track, string name)
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            if (name == EMPTY_ANIMATION)
-            set
+                animationState.SetAnimation(track, EmptyAnimation, false);
-            {
+            else if (animationNames.Contains(name))
-                if (value == EMPTY_ANIMATION)
+                animationState.SetAnimation(track, name, true);
-                    animationState.SetAnimation(0, EmptyAnimation, false);
-                else if (animationNames.Contains(value))
-                    animationState.SetAnimation(0, value, true);
-            }
         }
 
+        protected override void clearTrack(int i) => animationState.ClearTrack(i);
+
+        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
+
         protected override RectangleF bounds
         {
             get
@@ -233,8 +237,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
-
         protected override void update(float delta)
         {
             animationState.Update(delta);
@@ -259,6 +261,7 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             vertexArray.Clear();
             states.Texture = null;
+            states.Shader = Shader.GetSpineShader(usePremultipliedAlpha);
 
             // 要用 DrawOrder 而不是 Slots
             foreach (var slot in skeleton.DrawOrder)
@@ -320,18 +323,13 @@ namespace SpineViewer.Spine.Implementations.Spine
                 }
 
                 // 似乎 2.1.x 也没有 BlendMode
-                SFML.Graphics.BlendMode blendMode = slot.Data.AdditiveBlending ? BlendModeSFML.Additive : BlendModeSFML.Normal;
+                SFML.Graphics.BlendMode blendMode = slot.Data.AdditiveBlending ? BlendModeSFML.AdditivePma : BlendModeSFML.NormalPma;
 
                 states.Texture ??= texture;
                 if (states.BlendMode != blendMode || states.Texture != texture)
                 {
                     if (vertexArray.VertexCount > 0)
                     {
-                        if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                            states.Shader = Shader.FragmentShader;
-                        else
-                            states.Shader = null;
-
                         // 调试纹理
                         if (!isDebug || debugTexture)
                             target.Draw(vertexArray, states);
@@ -375,11 +373,6 @@ namespace SpineViewer.Spine.Implementations.Spine
 
                 //clipping.ClipEnd(slot);
             }
-
-            if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                states.Shader = Shader.FragmentShader;
-            else
-                states.Shader = null;
             //clipping.ClipEnd();
 
             // 调试纹理

SpineViewer/Spine/Implementations/Spine/Spine36.cs

@@ -108,18 +108,16 @@ namespace SpineViewer.Spine.Implementations.Spine
                 var pos = position;
                 var fX = flipX;
                 var fY = flipY;
-                var animation = track0Animation; // TODO: 适配多轨道
+                var animations = animationState.Tracks.Where(te => te is not null).Select(te => te.Animation.Name).ToArray();
-                var sk = skin;
 
-                var val = Math.Max(value, SCALE_MIN);
                 if (skeletonBinary is not null)
                 {
-                    skeletonBinary.Scale = val;
+                    skeletonBinary.Scale = value;
                     skeletonData = skeletonBinary.ReadSkeletonData(SkelPath);
                 }
                 else if (skeletonJson is not null)
                 {
-                    skeletonJson.Scale = val;
+                    skeletonJson.Scale = value;
                     skeletonData = skeletonJson.ReadSkeletonData(SkelPath);
                 }
 
@@ -132,8 +130,8 @@ namespace SpineViewer.Spine.Implementations.Spine
                 position = pos;
                 flipX = fX;
                 flipY = fY;
-                track0Animation = animation; // TODO: 适配多轨道
+                foreach (var s in loadedSkins) addSkin(s);
-                skin = sk;
+                for (int i = 0; i < animations.Length; i++) setAnimation(i, animations[i]);
             }
         }
 
@@ -159,29 +157,35 @@ namespace SpineViewer.Spine.Implementations.Spine
             set => skeleton.FlipY = value;
         }
 
-        protected override string skin
+        protected override void addSkin(string name)
         {
-            get => skeleton.Skin?.Name ?? "default";
+            if (!skinNames.Contains(name)) return;
-            set
+            skeleton.SetSkin(name); // XXX: 3.7 及以下不支持 AddSkin
-            {
-                if (!skinNames.Contains(value)) return;
-                skeleton.SetSkin(value);
             skeleton.SetSlotsToSetupPose();
         }
+
+        protected override void clearSkin()
+        {
+            skeleton.SetSkin(skeletonData.DefaultSkin);
+            skeleton.SetSlotsToSetupPose();
         }
 
-        protected override string track0Animation
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+
+        protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
+
+        protected override void setAnimation(int track, string name)
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            if (name == EMPTY_ANIMATION)
-            set
+                animationState.SetAnimation(track, EmptyAnimation, false);
-            {
+            else if (animationNames.Contains(name))
-                if (value == EMPTY_ANIMATION)
+                animationState.SetAnimation(track, name, true);
-                    animationState.SetAnimation(0, EmptyAnimation, false);
-                else if (animationNames.Contains(value))
-                    animationState.SetAnimation(0, value, true);
-            }
         }
 
+        protected override void clearTrack(int i) => animationState.ClearTrack(i);
+
+        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
+
         protected override RectangleF bounds
         {
             get
@@ -192,8 +196,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
-
         protected override void update(float delta)
         {
             animationState.Update(delta);
@@ -206,10 +208,10 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             return spineBlendMode switch
             {
-                BlendMode.Normal => BlendModeSFML.Normal,
+                BlendMode.Normal => BlendModeSFML.NormalPma,
-                BlendMode.Additive => BlendModeSFML.Additive,
+                BlendMode.Additive => BlendModeSFML.AdditivePma,
-                BlendMode.Multiply => BlendModeSFML.Multiply,
+                BlendMode.Multiply => BlendModeSFML.MultiplyPma,
-                BlendMode.Screen => BlendModeSFML.Screen,
+                BlendMode.Screen => BlendModeSFML.ScreenPma,
                 _ => throw new NotImplementedException($"{spineBlendMode}"),
             };
         }
@@ -218,6 +220,7 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             vertexArray.Clear();
             states.Texture = null;
+            states.Shader = Shader.GetSpineShader(usePremultipliedAlpha);
 
             // 要用 DrawOrder 而不是 Slots
             foreach (var slot in skeleton.DrawOrder)
@@ -284,11 +287,6 @@ namespace SpineViewer.Spine.Implementations.Spine
                 {
                     if (vertexArray.VertexCount > 0)
                     {
-                        if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                            states.Shader = Shader.FragmentShader;
-                        else
-                            states.Shader = null;
-
                         // 调试纹理
                         if (!isDebug || debugTexture)
                             target.Draw(vertexArray, states);
@@ -334,11 +332,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
             clipping.ClipEnd();
 
-            if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                states.Shader = Shader.FragmentShader;
-            else
-                states.Shader = null;
-
             // 调试纹理
             if (!isDebug || debugTexture)
                 target.Draw(vertexArray, states);

SpineViewer/Spine/Implementations/Spine/Spine37.cs

@@ -129,29 +129,35 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override string skin
+        protected override void addSkin(string name)
         {
-            get => skeleton.Skin?.Name ?? "default";
+            if (!skinNames.Contains(name)) return;
-            set
+            skeleton.SetSkin(name); // XXX: 3.7 及以下不支持 AddSkin
-            {
-                if (!skinNames.Contains(value)) return;
-                skeleton.SetSkin(value);
             skeleton.SetSlotsToSetupPose();
         }
+
+        protected override void clearSkin()
+        {
+            skeleton.SetSkin(skeletonData.DefaultSkin);
+            skeleton.SetSlotsToSetupPose();
         }
 
-        protected override string track0Animation
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+
+        protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
+
+        protected override void setAnimation(int track, string name)
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            if (name == EMPTY_ANIMATION)
-            set
+                animationState.SetAnimation(track, EmptyAnimation, false);
-            {
+            else if (animationNames.Contains(name))
-                if (value == EMPTY_ANIMATION)
+                animationState.SetAnimation(track, name, true);
-                    animationState.SetAnimation(0, EmptyAnimation, false);
-                else if (animationNames.Contains(value))
-                    animationState.SetAnimation(0, value, true);
-            }
         }
 
+        protected override void clearTrack(int i) => animationState.ClearTrack(i);
+
+        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
+
         protected override RectangleF bounds
         {
             get
@@ -162,8 +168,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
-
         protected override void update(float delta)
         {
             animationState.Update(delta);
@@ -176,10 +180,10 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             return spineBlendMode switch
             {
-                BlendMode.Normal => BlendModeSFML.Normal,
+                BlendMode.Normal => BlendModeSFML.NormalPma,
-                BlendMode.Additive => BlendModeSFML.Additive,
+                BlendMode.Additive => BlendModeSFML.AdditivePma,
-                BlendMode.Multiply => BlendModeSFML.Multiply,
+                BlendMode.Multiply => BlendModeSFML.MultiplyPma,
-                BlendMode.Screen => BlendModeSFML.Screen,
+                BlendMode.Screen => BlendModeSFML.ScreenPma,
                 _ => throw new NotImplementedException($"{spineBlendMode}"),
             };
         }
@@ -188,6 +192,7 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             vertexArray.Clear();
             states.Texture = null;
+            states.Shader = Shader.GetSpineShader(usePremultipliedAlpha);
 
             // 要用 DrawOrder 而不是 Slots
             foreach (var slot in skeleton.DrawOrder)
@@ -254,12 +259,6 @@ namespace SpineViewer.Spine.Implementations.Spine
                 {
                     if (vertexArray.VertexCount > 0)
                     {
-                        // XXX: 实测不用设置 sampler2D 的值也正确
-                        if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                            states.Shader = Shader.FragmentShader;
-                        else
-                            states.Shader = null;
-
                         // 调试纹理
                         if (!isDebug || debugTexture)
                             target.Draw(vertexArray, states);
@@ -305,11 +304,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
             clipping.ClipEnd();
 
-            if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                states.Shader = Shader.FragmentShader;
-            else
-                states.Shader = null;
-
             // 调试纹理
             if (!isDebug || debugTexture)
                 target.Draw(vertexArray, states);

SpineViewer/Spine/Implementations/Spine/Spine38.cs

@@ -82,7 +82,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             foreach (var anime in skeletonData.Animations)
                 animationNames.Add(anime.Name);
 
-            skeleton = new Skeleton(skeletonData);
+            skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
             animationState = new AnimationState(animationStateData);
         }
@@ -135,29 +135,37 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override string skin
+        protected override void addSkin(string name)
         {
-            get => skeleton.Skin?.Name ?? "default";
+            if (skeletonData.FindSkin(name) is Skin sk)
-            set
             {
-                if (!skinNames.Contains(value)) return;
+                skeleton.Skin.AddSkin(sk);
-                skeleton.SetSkin(value);
                 skeleton.SetSlotsToSetupPose();
             }
         }
 
-        protected override string track0Animation
+        protected override void clearSkin()
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            skeleton.Skin.Clear();
-            set 
+            skeleton.SetSlotsToSetupPose();
+        }
+
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+
+        protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
+
+        protected override void setAnimation(int track, string name)
         {
-                if (value == EMPTY_ANIMATION)
+            if (name == EMPTY_ANIMATION)
-                    animationState.SetAnimation(0, EmptyAnimation, false);
+                animationState.SetAnimation(track, EmptyAnimation, false);
-                else if (animationNames.Contains(value))
+            else if (animationNames.Contains(name))
-                    animationState.SetAnimation(0, value, true);
+                animationState.SetAnimation(track, name, true);
-            }
         }
 
+        protected override void clearTrack(int i) => animationState.ClearTrack(i);
+
+        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
+
         protected override RectangleF bounds
         {
             get
@@ -168,8 +176,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
-
         protected override void update(float delta)
         {
             animationState.Update(delta);
@@ -182,10 +188,10 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             return spineBlendMode switch
             {
-                BlendMode.Normal => BlendModeSFML.Normal,
+                BlendMode.Normal => BlendModeSFML.NormalPma,
-                BlendMode.Additive => BlendModeSFML.Additive,
+                BlendMode.Additive => BlendModeSFML.AdditivePma,
-                BlendMode.Multiply => BlendModeSFML.Multiply,
+                BlendMode.Multiply => BlendModeSFML.MultiplyPma,
-                BlendMode.Screen => BlendModeSFML.Screen,
+                BlendMode.Screen => BlendModeSFML.ScreenPma,
                 _ => throw new NotImplementedException($"{spineBlendMode}"),
             };
         }
@@ -194,6 +200,7 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             vertexArray.Clear();
             states.Texture = null;
+            states.Shader = Shader.GetSpineShader(usePremultipliedAlpha);
 
             // 要用 DrawOrder 而不是 Slots
             foreach (var slot in skeleton.DrawOrder)
@@ -260,12 +267,6 @@ namespace SpineViewer.Spine.Implementations.Spine
                 {
                     if (vertexArray.VertexCount > 0)
                     {
-                        // XXX: 实测不用设置 sampler2D 的值也正确
-                        if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                            states.Shader = Shader.FragmentShader;
-                        else
-                            states.Shader = null;
-
                         // 调试纹理
                         if (!isDebug || debugTexture) 
                             target.Draw(vertexArray, states);
@@ -311,11 +312,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
             clipping.ClipEnd();
 
-            if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                states.Shader = Shader.FragmentShader;
-            else
-                states.Shader = null;
-
             // 调试纹理
             if (!isDebug || debugTexture)
                 target.Draw(vertexArray, states);

SpineViewer/Spine/Implementations/Spine/Spine40.cs

@@ -78,7 +78,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             foreach (var anime in skeletonData.Animations)
                 animationNames.Add(anime.Name);
 
-            skeleton = new Skeleton(skeletonData);
+            skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
             animationState = new AnimationState(animationStateData);
         }
@@ -131,29 +131,37 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override string skin
+        protected override void addSkin(string name)
         {
-            get => skeleton.Skin?.Name ?? "default";
+            if (skeletonData.FindSkin(name) is Skin sk)
-            set
             {
-                if (!skinNames.Contains(value)) return;
+                skeleton.Skin.AddSkin(sk);
-                skeleton.SetSkin(value);
                 skeleton.SetSlotsToSetupPose();
             }
         }
 
-        protected override string track0Animation
+        protected override void clearSkin()
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            skeleton.Skin.Clear();
-            set
+            skeleton.SetSlotsToSetupPose();
+        }
+
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+
+        protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
+
+        protected override void setAnimation(int track, string name)
         {
-                if (value == EMPTY_ANIMATION)
+            if (name == EMPTY_ANIMATION)
-                    animationState.SetAnimation(0, EmptyAnimation, false);
+                animationState.SetAnimation(track, EmptyAnimation, false);
-                else if (animationNames.Contains(value))
+            else if (animationNames.Contains(name))
-                    animationState.SetAnimation(0, value, true);
+                animationState.SetAnimation(track, name, true);
-            }
         }
 
+        protected override void clearTrack(int i) => animationState.ClearTrack(i);
+
+        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
+
         protected override RectangleF bounds
         {
             get
@@ -164,8 +172,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
-
         protected override void update(float delta)
         {
             animationState.Update(delta);
@@ -178,10 +184,10 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             return spineBlendMode switch
             {
-                BlendMode.Normal => BlendModeSFML.Normal,
+                BlendMode.Normal => BlendModeSFML.NormalPma,
-                BlendMode.Additive => BlendModeSFML.Additive,
+                BlendMode.Additive => BlendModeSFML.AdditivePma,
-                BlendMode.Multiply => BlendModeSFML.Multiply,
+                BlendMode.Multiply => BlendModeSFML.MultiplyPma,
-                BlendMode.Screen => BlendModeSFML.Screen,
+                BlendMode.Screen => BlendModeSFML.ScreenPma,
                 _ => throw new NotImplementedException($"{spineBlendMode}"),
             };
         }
@@ -190,6 +196,7 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             vertexArray.Clear();
             states.Texture = null;
+            states.Shader = Shader.GetSpineShader(usePremultipliedAlpha);
 
             // 要用 DrawOrder 而不是 Slots
             foreach (var slot in skeleton.DrawOrder)
@@ -256,12 +263,6 @@ namespace SpineViewer.Spine.Implementations.Spine
                 {
                     if (vertexArray.VertexCount > 0)
                     {
-                        // XXX: 实测不用设置 sampler2D 的值也正确
-                        if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                            states.Shader = Shader.FragmentShader;
-                        else
-                            states.Shader = null;
-
                         // 调试纹理
                         if (!isDebug || debugTexture)
                             target.Draw(vertexArray, states);
@@ -307,11 +308,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
             clipping.ClipEnd();
 
-            if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                states.Shader = Shader.FragmentShader;
-            else
-                states.Shader = null;
-
             // 调试纹理
             if (!isDebug || debugTexture)
                 target.Draw(vertexArray, states);

SpineViewer/Spine/Implementations/Spine/Spine41.cs

@@ -78,7 +78,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             foreach (var anime in skeletonData.Animations)
                 animationNames.Add(anime.Name);
 
-            skeleton = new Skeleton(skeletonData);
+            skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
             animationState = new AnimationState(animationStateData);
         }
@@ -131,29 +131,37 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override string skin
+        protected override void addSkin(string name)
         {
-            get => skeleton.Skin?.Name ?? "default";
+            if (skeletonData.FindSkin(name) is Skin sk)
-            set
             {
-                if (!skinNames.Contains(value)) return;
+                skeleton.Skin.AddSkin(sk);
-                skeleton.SetSkin(value);
                 skeleton.SetSlotsToSetupPose();
             }
         }
 
-        protected override string track0Animation
+        protected override void clearSkin()
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            skeleton.Skin.Clear();
-            set
+            skeleton.SetSlotsToSetupPose();
+        }
+
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+
+        protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
+
+        protected override void setAnimation(int track, string name)
         {
-                if (value == EMPTY_ANIMATION)
+            if (name == EMPTY_ANIMATION)
-                    animationState.SetAnimation(0, EmptyAnimation, false);
+                animationState.SetAnimation(track, EmptyAnimation, false);
-                else if (animationNames.Contains(value))
+            else if (animationNames.Contains(name))
-                    animationState.SetAnimation(0, value, true);
+                animationState.SetAnimation(track, name, true);
-            }
         }
 
+        protected override void clearTrack(int i) => animationState.ClearTrack(i);
+
+        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
+
         protected override RectangleF bounds
         {
             get
@@ -164,8 +172,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
-
         protected override void update(float delta)
         {
             animationState.Update(delta);
@@ -178,10 +184,10 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             return spineBlendMode switch
             {
-                BlendMode.Normal => BlendModeSFML.Normal,
+                BlendMode.Normal => BlendModeSFML.NormalPma,
-                BlendMode.Additive => BlendModeSFML.Additive,
+                BlendMode.Additive => BlendModeSFML.AdditivePma,
-                BlendMode.Multiply => BlendModeSFML.Multiply,
+                BlendMode.Multiply => BlendModeSFML.MultiplyPma,
-                BlendMode.Screen => BlendModeSFML.Screen,
+                BlendMode.Screen => BlendModeSFML.ScreenPma,
                 _ => throw new NotImplementedException($"{spineBlendMode}"),
             };
         }
@@ -190,6 +196,7 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             vertexArray.Clear();
             states.Texture = null;
+            states.Shader = Shader.GetSpineShader(usePremultipliedAlpha);
 
             // 要用 DrawOrder 而不是 Slots
             foreach (var slot in skeleton.DrawOrder)
@@ -256,12 +263,6 @@ namespace SpineViewer.Spine.Implementations.Spine
                 {
                     if (vertexArray.VertexCount > 0)
                     {
-                        // XXX: 实测不用设置 sampler2D 的值也正确
-                        if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                            states.Shader = Shader.FragmentShader;
-                        else
-                            states.Shader = null;
-
                         // 调试纹理
                         if (!isDebug || debugTexture)
                             target.Draw(vertexArray, states);
@@ -307,11 +308,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
             clipping.ClipEnd();
 
-            if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                states.Shader = Shader.FragmentShader;
-            else
-                states.Shader = null;
-
             // 调试纹理
             if (!isDebug || debugTexture)
                 target.Draw(vertexArray, states);

SpineViewer/Spine/Implementations/Spine/Spine42.cs

@@ -78,7 +78,7 @@ namespace SpineViewer.Spine.Implementations.Spine
             foreach (var anime in skeletonData.Animations)
                 animationNames.Add(anime.Name);
 
-            skeleton = new Skeleton(skeletonData);
+            skeleton = new Skeleton(skeletonData) { Skin = new(Guid.NewGuid().ToString()) }; // 挂载一个空皮肤当作容器
             animationStateData = new AnimationStateData(skeletonData);
             animationState = new AnimationState(animationStateData);
         }
@@ -131,29 +131,37 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        protected override string skin
+        protected override void addSkin(string name)
         {
-            get => skeleton.Skin?.Name ?? "default";
+            if (skeletonData.FindSkin(name) is Skin sk)
-            set
             {
-                if (!skinNames.Contains(value)) return;
+                skeleton.Skin.AddSkin(sk);
-                skeleton.SetSkin(value);
                 skeleton.SetSlotsToSetupPose();
             }
         }
 
-        protected override string track0Animation
+        protected override void clearSkin()
         {
-            get => animationState.GetCurrent(0)?.Animation.Name ?? EMPTY_ANIMATION;
+            skeleton.Skin.Clear();
-            set
+            skeleton.SetSlotsToSetupPose();
+        }
+
+        protected override int[] getTrackIndices() => animationState.Tracks.Select((_, i) => i).Where(i => animationState.Tracks.Items[i] is not null).ToArray();
+
+        protected override string getAnimation(int track) => animationState.GetCurrent(track)?.Animation.Name ?? EMPTY_ANIMATION;
+
+        protected override void setAnimation(int track, string name)
         {
-                if (value == EMPTY_ANIMATION)
+            if (name == EMPTY_ANIMATION)
-                    animationState.SetAnimation(0, EmptyAnimation, false);
+                animationState.SetAnimation(track, EmptyAnimation, false);
-                else if (animationNames.Contains(value))
+            else if (animationNames.Contains(name))
-                    animationState.SetAnimation(0, value, true);
+                animationState.SetAnimation(track, name, true);
-            }
         }
 
+        protected override void clearTrack(int i) => animationState.ClearTrack(i);
+
+        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
+
         protected override RectangleF bounds
         {
             get
@@ -164,8 +172,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
         }
 
-        public override float GetAnimationDuration(string name) { return skeletonData.FindAnimation(name)?.Duration ?? 0f; }
-
         protected override void update(float delta)
         {
             animationState.Update(delta);
@@ -178,10 +184,10 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             return spineBlendMode switch
             {
-                BlendMode.Normal => BlendModeSFML.Normal,
+                BlendMode.Normal => BlendModeSFML.NormalPma,
-                BlendMode.Additive => BlendModeSFML.Additive,
+                BlendMode.Additive => BlendModeSFML.AdditivePma,
-                BlendMode.Multiply => BlendModeSFML.Multiply,
+                BlendMode.Multiply => BlendModeSFML.MultiplyPma,
-                BlendMode.Screen => BlendModeSFML.Screen,
+                BlendMode.Screen => BlendModeSFML.ScreenPma,
                 _ => throw new NotImplementedException($"{spineBlendMode}"),
             };
         }
@@ -190,6 +196,7 @@ namespace SpineViewer.Spine.Implementations.Spine
         {
             vertexArray.Clear();
             states.Texture = null;
+            states.Shader = Shader.GetSpineShader(usePremultipliedAlpha);
 
             // 要用 DrawOrder 而不是 Slots
             foreach (var slot in skeleton.DrawOrder)
@@ -256,12 +263,6 @@ namespace SpineViewer.Spine.Implementations.Spine
                 {
                     if (vertexArray.VertexCount > 0)
                     {
-                        // XXX: 实测不用设置 sampler2D 的值也正确
-                        if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                            states.Shader = Shader.FragmentShader;
-                        else
-                            states.Shader = null;
-
                         // 调试纹理
                         if (!isDebug || debugTexture)
                             target.Draw(vertexArray, states);
@@ -307,11 +308,6 @@ namespace SpineViewer.Spine.Implementations.Spine
             }
             clipping.ClipEnd();
 
-            if (usePremultipliedAlpha && (states.BlendMode == BlendModeSFML.Normal || states.BlendMode == BlendModeSFML.Additive))
-                states.Shader = Shader.FragmentShader;
-            else
-                states.Shader = null;
-
             // 调试纹理
             if (!isDebug || debugTexture)
                 target.Draw(vertexArray, states);

SpineViewer/Spine/Shader.cs

@@ -1,35 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace SpineViewer.Spine
-{
-    public static class Shader
-    {
-        /// <summary>
-        /// 用于解决 PMA 和渐变动画问题的片段着色器
-        /// </summary>
-        private const string FRAGMENT_SHADER = (
-            "uniform sampler2D t;" +
-            "void main() { vec4 p = texture2D(t, gl_TexCoord[0].xy);" +
-            "if (p.a > 0) p.rgb /= max(max(max(p.r, p.g), p.b), p.a);" +
-            "gl_FragColor = gl_Color * p; }"
-        );
-
-        /// <summary>
-        /// 针对预乘 Alpha 通道的片段着色器
-        /// </summary>
-        public static SFML.Graphics.Shader? FragmentShader { get; private set; }
-
-        /// <summary>
-        /// 加载 Shader, 可能会存在异常导致着色器加载失败
-        /// </summary>
-        /// <exception cref="SFML.LoadingFailedException"></exception>
-        public static void Init()
-        {
-            FragmentShader = SFML.Graphics.Shader.FromString(null, null, FRAGMENT_SHADER);
-        }
-    }
-}

SpineViewer/Spine/SkinManager.cs

@@ -0,0 +1,135 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewer.Spine
+{
+    /// <summary>
+    /// 对皮肤的包装类
+    /// </summary>
+    [TypeConverter(typeof(SkinWrapperConverter))]
+    public class SkinWrapper(Spine spine, int i)
+    {
+        private readonly Spine spine = spine;
+
+        [Browsable(false)]
+        public int Index { get; } = i;
+
+        public override string ToString() 
+        {
+            var loadedSkins = spine.GetLoadedSkins();
+            if (Index >= 0 && Index < loadedSkins.Length) 
+                return loadedSkins[Index]; 
+            return "!NULL"; // XXX: 预期应该不会发生
+        }
+
+        public override bool Equals(object? obj)
+        {
+            if (obj is SkinWrapper) return ToString() == obj.ToString();
+            return base.Equals(obj);
+        }
+
+        public override int GetHashCode() => (typeof(SkinWrapper).FullName + ToString()).GetHashCode();
+    }
+
+    /// <summary>
+    /// 皮肤属性描述符, 实现对属性的读取和赋值
+    /// </summary>
+    /// <param name="spine">关联的 Spine 对象</param>
+    public class SkinWrapperPropertyDescriptor(int i) : PropertyDescriptor($"Skin{i}", [new DisplayNameAttribute($"皮肤 {i}")])
+    {
+        private readonly int idx = i;
+
+        public override Type ComponentType => typeof(SkinManager);
+        public override bool IsReadOnly => false;
+        public override Type PropertyType => typeof(SkinWrapper);
+        public override bool CanResetValue(object component) => false;
+        public override void ResetValue(object component) { }
+        public override bool ShouldSerializeValue(object component) => false;
+
+        /// <summary>
+        /// 得到一个 SkinWrapper, 允许用户查看或者修改具体的属性值, 这个地方决定了在面板上看到的是一个对象及其属性
+        /// </summary>
+        public override object? GetValue(object? component)
+        {
+            if (component is SkinManager manager)
+                return manager.GetSkinWrapper(idx);
+            return null;
+        }
+
+        /// <summary>
+        /// 允许通过字符串赋值修改该位置的皮肤
+        /// </summary>
+        public override void SetValue(object? component, object? value)
+        {
+            if (component is SkinManager manager)
+            {
+                if (value is string s)
+                    manager.Spine.ReplaceSkin(idx, s); // manager.SetSkinWrapper(idx, s);
+            }
+        }
+    }
+
+    /// <summary>
+    /// SkinManager 动态类型包装类, 用于提供对 Spine 皮肤列表的管理能力
+    /// </summary>
+    /// <param name="spine">关联的 Spine 对象</param>
+    public class SkinManager(Spine spine) : ICustomTypeDescriptor
+    {
+        private static readonly Dictionary<int, SkinWrapperPropertyDescriptor> pdCache = [];
+
+        public Spine Spine { get; } = spine;
+        private readonly Dictionary<int, SkinWrapper> skinWrapperProperties = [];
+
+        // XXX: 必须实现 ICustomTypeDescriptor 接口, 不能继承 CustomTypeDescriptor, 似乎继承下来的东西会有问题, 导致某些调用不正确
+
+        public AttributeCollection GetAttributes() => TypeDescriptor.GetAttributes(this, true);
+        public string? GetClassName() => TypeDescriptor.GetClassName(this, true);
+        public string? GetComponentName() => TypeDescriptor.GetComponentName(this, true);
+        public TypeConverter? GetConverter() => TypeDescriptor.GetConverter(this, true);
+        public EventDescriptor? GetDefaultEvent() => TypeDescriptor.GetDefaultEvent(this, true);
+        public PropertyDescriptor? GetDefaultProperty() => TypeDescriptor.GetDefaultProperty(this, true);
+        public object? GetEditor(Type editorBaseType) => TypeDescriptor.GetEditor(this, editorBaseType, true);
+        public EventDescriptorCollection GetEvents() => TypeDescriptor.GetEvents(this, true);
+        public EventDescriptorCollection GetEvents(Attribute[]? attributes) => TypeDescriptor.GetEvents(this, attributes, true);
+        public object? GetPropertyOwner(PropertyDescriptor? pd) => this;
+        public PropertyDescriptorCollection GetProperties() => GetProperties(null);
+        public PropertyDescriptorCollection GetProperties(Attribute[]? attributes)
+        {
+            var props = new List<SkinWrapperPropertyDescriptor>();
+            for (var i = 0; i < Spine.GetLoadedSkins().Length; i++)
+            {
+                if (!pdCache.ContainsKey(i))
+                    pdCache[i] = new SkinWrapperPropertyDescriptor(i);
+                props.Add(pdCache[i]);
+            }
+            return new PropertyDescriptorCollection(props.ToArray());
+        }
+
+        /// <summary>
+        /// 访问 SkinWrapper 属性 <c>SkinManager.Skin{i}</c>
+        /// </summary>
+        public SkinWrapper GetSkinWrapper(int i)
+        {
+            if (!skinWrapperProperties.ContainsKey(i))
+                skinWrapperProperties[i] = new SkinWrapper(Spine, i);
+            return skinWrapperProperties[i];
+        }
+
+        /// <summary>  
+        /// 在属性面板悬停可以显示已加载的皮肤列表  
+        /// </summary>  
+        public override string ToString() => $"[{string.Join(", ", Spine.GetLoadedSkins())}]";
+
+        public override bool Equals(object? obj)
+        {
+            if (obj is SkinManager manager) return ToString() == manager.ToString();
+            return base.Equals(obj);
+        }
+
+        public override int GetHashCode() => (typeof(SkinManager).FullName + ToString()).GetHashCode();
+    }
+}

SpineViewer/Spine/Spine.cs

@@ -1,20 +1,10 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Text.RegularExpressions;
-using System.Numerics;
-using System.Collections;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
 using System.Reflection;
-using System.Diagnostics.CodeAnalysis;
+using System.Drawing.Design;
-using System.Globalization;
+using NLog;
-using System.Text.Json.Nodes;
+using System.Xml.Linq;
-using System.Collections.Immutable;
-using SpineViewer.Exporter;
 
 namespace SpineViewer.Spine
 {
@@ -23,6 +13,9 @@ namespace SpineViewer.Spine
     /// </summary>
     public abstract class Spine : ImplementationResolver<Spine, SpineImplementationAttribute, SpineVersion>, SFML.Graphics.Drawable, IDisposable
     {
+        private readonly Logger logger = LogManager.GetCurrentClassLogger();
+        private bool skinLoggerWarned = false;
+
         /// <summary>
         /// 空动画标记
         /// </summary>
@@ -38,11 +31,6 @@ namespace SpineViewer.Spine
         /// </summary>
         protected const uint PREVIEW_HEIGHT = 256;
 
-        /// <summary>
-        /// 缩放最小值
-        /// </summary>
-        protected const float SCALE_MIN = 0.001f;
-
         /// <summary>
         /// 创建特定版本的 Spine
         /// </summary>
@@ -76,7 +64,9 @@ namespace SpineViewer.Spine
         private Spine PostInit()
         {
             SkinNames = skinNames.AsReadOnly();
+            SkinManager = new(this);
             AnimationNames = animationNames.AsReadOnly();
+            AnimationTracks = new(this);
 
             // 必须 Update 一次否则包围盒还没有值
             update(0);
@@ -87,25 +77,20 @@ namespace SpineViewer.Spine
             // 除此之外, 似乎还和 tex 的 Dispose 有关
             // 如果不对 tex 进行 Dispose, 那么不管是否 Draw 都正常不会死锁
             var tex = new SFML.Graphics.RenderTexture(PREVIEW_WIDTH, PREVIEW_HEIGHT);
-            tex.SetView(bounds.GetView(PREVIEW_WIDTH, PREVIEW_HEIGHT));
+            using var view = bounds.GetView(PREVIEW_WIDTH, PREVIEW_HEIGHT);
+            tex.SetView(view);
             tex.Clear(SFML.Graphics.Color.Transparent);
             tex.Draw(this);
             tex.Display();
+            Preview = tex.Texture.CopyToBitmap();
 
-            using (var img = tex.Texture.CopyToImage())
+            // 默认初始化10个空位
+            for (int i = 0; i < 10; i++)
             {
-                if (img.SaveToMemory(out var imgBuffer, "bmp"))
+                setAnimation(i, AnimationNames.First());
-                {
+                loadedSkins.Add(SkinNames.First());
-                    // 必须重复构造一个副本才能摆脱对流的依赖, 否则之后使用会报错
-                    using var stream = new MemoryStream(imgBuffer);
-                    using var bitmap = new Bitmap(stream);
-                    Preview = new Bitmap(bitmap);
             }
-            }
+            reloadSkins();
-
-            // 取最后一个作为初始, 尽可能去显示非默认的内容
-            skin = SkinNames.Last();
-            track0Animation = AnimationNames.Last();
 
             return this;
         }
@@ -177,7 +162,7 @@ namespace SpineViewer.Spine
             get { lock (_lock) return usePremultipliedAlpha; }
             set { lock (_lock) usePremultipliedAlpha = value; }
         }
-        protected bool usePremultipliedAlpha = true;
+        protected bool usePremultipliedAlpha = false;
 
         #endregion
 
@@ -190,7 +175,7 @@ namespace SpineViewer.Spine
         public float Scale
         {
             get { lock (_lock) return scale; }
-            set { lock (_lock) { scale = value; update(0); } }
+            set { lock (_lock) { scale = Math.Max(value, 0.001f); update(0); } }
         }
         protected abstract float scale { get; set; }
 
@@ -232,49 +217,157 @@ namespace SpineViewer.Spine
 
         #region 属性 | [3] 动画
 
+        /// <summary>
+        /// 已加载皮肤列表
+        /// </summary>
+        [Editor(typeof(SkinManagerEditor), typeof(UITypeEditor))]
+        [TypeConverter(typeof(ExpandableObjectConverter))]
+        [Category("[3] 动画"), DisplayName("已加载皮肤列表")]
+        public SkinManager SkinManager { get; private set; }
+
+        /// <summary>
+        /// 默认轨道动画名称, 如果设置的动画不存在则忽略
+        /// </summary>
+        [Browsable(false)]
+        public string Track0Animation
+        {
+            get { lock (_lock) return getAnimation(0); }
+            set { lock (_lock) { setAnimation(0, value); update(0); } }
+        }
+
+        /// <summary>
+        /// 全轨道动画最大时长
+        /// </summary>
+        [Category("[3] 动画"), DisplayName("全轨道最大时长")]
+        public float AnimationTracksMaxDuration { get { lock (_lock) return getTrackIndices().Select(i => GetAnimationDuration(getAnimation(i))).Max(); } }
+
+        /// <summary>
+        /// 默认轨道动画时长
+        /// </summary>
+        [Editor(typeof(AnimationTracksEditor), typeof(UITypeEditor))]
+        [TypeConverter(typeof(ExpandableObjectConverter))]
+        [Category("[3] 动画"), DisplayName("多轨道动画管理")]
+        public AnimationTracks AnimationTracks { get; private set; }
+
         /// <summary>
         /// 包含的所有皮肤名称
         /// </summary>
         [Browsable(false)]
         public ReadOnlyCollection<string> SkinNames { get; private set; }
-        protected List<string> skinNames = [];
+        protected readonly List<string> skinNames = [];
 
         /// <summary>
-        /// 使用的皮肤名称, 如果设置的皮肤不存在则忽略
+        /// 获取已加载的皮肤列表快照, 允许出现重复值
         /// </summary>
-        [TypeConverter(typeof(SkinConverter))]
+        public string[] GetLoadedSkins() { lock (_lock) return loadedSkins.ToArray(); }
-        [Category("[3] 动画"), DisplayName("皮肤")]
+        protected readonly List<string> loadedSkins = [];
-        public string Skin
+
+        /// <summary>
+        /// 加载指定皮肤, 添加至列表末尾, 如果不存在则忽略, 允许加载重复的值
+        /// </summary>
+        public void LoadSkin(string name)
         {
-            get { lock (_lock) return skin; }
+            if (!skinNames.Contains(name)) return;
-            set { lock (_lock) { skin = value; update(0); } }
+            lock (_lock)
+            {
+                loadedSkins.Add(name);
+                reloadSkins();
+
+                if (!skinLoggerWarned && Version <= SpineVersion.V37 && loadedSkins.Count > 1)
+                {
+                    logger.Warn($"Multiplt skins not supported in SpineVersion {Version.GetName()}");
+                    skinLoggerWarned = true;
                 }
-        protected abstract string skin { get; set; }
+            }
+        }
+
+        /// <summary>
+        /// 卸载列表指定位置皮肤, 如果超出范围则忽略
+        /// </summary>
+        public void UnloadSkin(int idx)
+        {
+            if (idx < 0 || idx >= loadedSkins.Count) return;
+            lock (_lock)
+            {
+                loadedSkins.RemoveAt(idx);
+                reloadSkins();
+            }
+        }
+
+        /// <summary>
+        /// 替换皮肤列表指定位置皮肤, 超出范围或者皮肤不存在则忽略
+        /// </summary>
+        public void ReplaceSkin(int idx, string name)
+        {
+            if (idx < 0 || idx >= loadedSkins.Count || !skinNames.Contains(name)) return;
+            lock (_lock)
+            {
+                loadedSkins[idx] = name;
+                reloadSkins();
+            }
+        }
+
+        /// <summary>
+        /// 重新加载现有皮肤列表, 用于刷新等操作
+        /// </summary>
+        public void ReloadSkins() { lock (_lock) reloadSkins(); }
+        private void reloadSkins()
+        {
+            clearSkin();
+            foreach (var s in loadedSkins.Distinct()) addSkin(s);
+            update(0);
+        }
+
+        /// <summary>
+        /// 加载皮肤, 如果不存在则忽略
+        /// </summary>
+        protected abstract void addSkin(string name);
+
+        /// <summary>
+        /// 清空加载的所有皮肤
+        /// </summary>
+        protected abstract void clearSkin();
 
         /// <summary>
         /// 包含的所有动画名称
         /// </summary>
         [Browsable(false)]
         public ReadOnlyCollection<string> AnimationNames { get; private set; }
-        protected List<string> animationNames = [EMPTY_ANIMATION];
+        protected readonly List<string> animationNames = [EMPTY_ANIMATION];
 
         /// <summary>
-        /// 默认轨道动画名称, 如果设置的动画不存在则忽略
+        /// 获取所有非 null 的轨道索引快照
         /// </summary>
-        [TypeConverter(typeof(AnimationConverter))]
+        public int[] GetTrackIndices() { lock (_lock) return getTrackIndices(); }
-        [Category("[3] 动画"), DisplayName("默认轨道动画")]
+        protected abstract int[] getTrackIndices();
-        public string Track0Animation
-        {
-            get { lock (_lock) return track0Animation; }
-            set { lock (_lock) { track0Animation = value; update(0); } }
-        }
-        protected abstract string track0Animation { get; set; }
 
         /// <summary>
-        /// 默认轨道动画时长
+        /// 获取指定轨道的当前动画, 如果没有, 应当返回空动画名称
         /// </summary>
-        [Category("[3] 动画"), DisplayName("默认轨道动画时长")]
+        public string GetAnimation(int track) { lock (_lock) return getAnimation(track); }
-        public float Track0AnimationDuration { get => GetAnimationDuration(Track0Animation); } // TODO: 动画时长变成伪属性在面板显示
+        protected abstract string getAnimation(int track);
+
+        /// <summary>
+        /// 设置某个轨道动画
+        /// </summary>
+        public void SetAnimation(int track, string name) { lock (_lock) { setAnimation(track, name); update(0); } }
+        protected abstract void setAnimation(int track, string name);
+
+        /// <summary>
+        /// 清除某个轨道, 与设置空动画不同, 是彻底删除轨道内的东西
+        /// </summary>
+        public void ClearTrack(int i) { lock (_lock) { clearTrack(i); update(0); } }
+        protected abstract void clearTrack(int i); // XXX: 清除轨道之后被加载的附件还是会保留, 不会自动卸下, 除非使用 SetSlotsToSetupPose
+
+        /// <summary>
+        /// 获取动画时长, 如果动画不存在则返回 0
+        /// </summary>
+        public abstract float GetAnimationDuration(string name);
+
+        /// <summary>
+        /// 重置所有轨道上的动画时间
+        /// </summary>
+        public void ResetAnimationsTime() { lock (_lock) { foreach (var i in getTrackIndices()) setAnimation(i, getAnimation(i)); update(0); } }
 
         #endregion
 
@@ -350,16 +443,11 @@ namespace SpineViewer.Spine
         protected abstract RectangleF bounds { get; }
 
         /// <summary>
-        /// 骨骼预览图
+        /// 骨骼预览图, 并没有去除预乘, 画面可能偏暗
         /// </summary>
         [Browsable(false)]
         public Image Preview { get; private set; }
 
-        /// <summary>
-        /// 获取动画时长, 如果动画不存在则返回 0
-        /// </summary>
-        public abstract float GetAnimationDuration(string name);
-
         /// <summary>
         /// 更新内部状态
         /// </summary>
@@ -390,10 +478,18 @@ namespace SpineViewer.Spine
 
         /// <summary>
         /// SFML.Graphics.Drawable 接口实现
+        /// <para>这个渲染实现绘制出来的像素将是预乘的, 当渲染的背景透明度是 1 时, 则等价于非预乘的结果, 即正常画面, 否则画面偏暗</para>
+        /// <para>可以用于 <see cref="SFML.Graphics.RenderWindow"/> 的渲染, 因为直接在窗口上绘制时窗口始终是不透明的</para>
         /// </summary>
         public void Draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states) { lock (_lock) draw(target, states); }
+
+        /// <summary>
+        /// 这个渲染实现绘制出来的像素将是预乘的, 当渲染的背景透明度是 1 时, 则等价于非预乘的结果, 即正常画面, 否则画面偏暗
+        /// <para>可以用于 <see cref="SFML.Graphics.RenderWindow"/> 的渲染, 因为直接在窗口上绘制时窗口始终是不透明的</para>
+        /// </summary>
         protected abstract void draw(SFML.Graphics.RenderTarget target, SFML.Graphics.RenderStates states);
 
         #endregion
+
     }
 }

SpineViewer/Spine/TypeConverter.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics.CodeAnalysis;
@@ -21,32 +22,6 @@ namespace SpineViewer.Spine
         }
     }
 
-    public class AnimationConverter : StringConverter
-    {
-        public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
-
-        public override bool GetStandardValuesExclusive(ITypeDescriptorContext? context) => true;
-
-        public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
-        {
-            if (context?.Instance is Spine obj)
-            {
-                return new StandardValuesCollection(obj.AnimationNames);
-            }
-            else if (context?.Instance is Spine[] spines)
-            {
-                if (spines.Length > 0)
-                {
-                    IEnumerable<string> common = spines[0].AnimationNames;
-                    foreach (var spine in spines.Skip(1))
-                        common = common.Intersect(spine.AnimationNames);
-                    return new StandardValuesCollection(common.ToArray());
-                }
-            }
-            return base.GetStandardValues(context);
-        }
-    }
-
     public class SkinConverter : StringConverter
     {
         public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
@@ -65,7 +40,100 @@ namespace SpineViewer.Spine
                 {
                     IEnumerable<string> common = spines[0].SkinNames;
                     foreach (var spine in spines.Skip(1))
-                        common = common.Intersect(spine.SkinNames);
+                        common = common.Union(spine.SkinNames);
+                    return new StandardValuesCollection(common.ToArray());
+                }
+            }
+            return base.GetStandardValues(context);
+        }
+    }
+
+    public class AnimationConverter : StringConverter
+    {
+        public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
+
+        public override bool GetStandardValuesExclusive(ITypeDescriptorContext? context) => true;
+
+        public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
+        {
+            if (context?.Instance is Spine obj)
+            {
+                return new StandardValuesCollection(obj.AnimationNames);
+            }
+            else if (context?.Instance is Spine[] spines)
+            {
+                if (spines.Length > 0)
+                {
+                    IEnumerable<string> common = spines[0].AnimationNames;
+                    foreach (var spine in spines.Skip(1))
+                        common = common.Union(spine.AnimationNames);
+                    return new StandardValuesCollection(common.ToArray());
+                }
+            }
+            return base.GetStandardValues(context);
+        }
+    }
+
+    /// <summary>
+    /// 轨道索引包装类转换器, 实现字符串和包装类的互相转换, 并且提供标准值列表对属性进行设置, 同时还提供在面板上显示包装类属性的能力
+    /// </summary>
+    public class TrackWrapperConverter : ExpandableObjectConverter
+    {
+        // NOTE: 可以不用实现 ConvertTo/ConvertFrom, 因为属性实现了与字符串之间的互转
+        // ToString 实现了 ConvertTo
+        // SetValue 实现了从字符串设置属性
+
+        public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
+
+        public override bool GetStandardValuesExclusive(ITypeDescriptorContext? context) => true;
+
+        public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
+        {
+            if (context.Instance is AnimationTracks tracks)
+            {
+                return new StandardValuesCollection(tracks.Spine.AnimationNames);
+            }
+            else if (context.Instance is object[] instances && instances.All(x => x is AnimationTracks))
+            {
+                // XXX: 这里不知道为啥总是会得到 object[] 类型而不是具体的类型
+                var animTracks = instances.Cast<AnimationTracks>().ToArray();
+                if (animTracks.Length > 0)
+                {
+                    IEnumerable<string> common = animTracks[0].Spine.AnimationNames;
+                    foreach (var t in animTracks.Skip(1))
+                        common = common.Union(t.Spine.AnimationNames);
+                    return new StandardValuesCollection(common.ToArray());
+                }
+            }
+            return base.GetStandardValues(context);
+        }
+    }
+
+    public class SkinWrapperConverter : StringConverter
+    {
+        // NOTE: 可以不用实现 ConvertTo/ConvertFrom, 因为属性实现了与字符串之间的互转
+        // ToString 实现了 ConvertTo
+        // SetValue 实现了从字符串设置属性
+
+        public override bool GetStandardValuesSupported(ITypeDescriptorContext? context) => true;
+
+        public override bool GetStandardValuesExclusive(ITypeDescriptorContext? context) => true;
+
+        public override StandardValuesCollection? GetStandardValues(ITypeDescriptorContext? context)
+        {
+            if (context.Instance is SkinManager manager)
+            {
+                return new StandardValuesCollection(manager.Spine.SkinNames);
+            }
+            else if (context.Instance is object[] instances && instances.All(x => x is SkinManager))
+            {
+                // XXX: 这里不知道为啥总是会得到 object[] 类型而不是具体的 SkinManager[] 类型
+                var managers = instances.Cast<SkinManager>().ToArray();
+                if (managers.Length > 0)
+                {
+                    IEnumerable<string> common = managers[0].Spine.SkinNames;
+                    foreach (var t in managers.Skip(1))
+                        common = common.Union(t.Spine.SkinNames);
                     return new StandardValuesCollection(common.ToArray());
                 }
             }

SpineViewer/Spine/UITypeEditor.cs

@@ -1,4 +1,5 @@
-using System;
+using SpineViewer.Dialogs;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Drawing.Design;
@@ -36,4 +37,52 @@ namespace SpineViewer.Spine
             openFileDialog.Filter = "atlas 文件 (*.atlas)|*.atlas|所有文件 (*.*)|*.*";
         }
     }
+
+    /// <summary>
+    /// 多轨道动画编辑器
+    /// </summary>
+    public class AnimationTracksEditor : UITypeEditor
+    {
+        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext? context) => UITypeEditorEditStyle.Modal;
+
+        public override object? EditValue(ITypeDescriptorContext? context, IServiceProvider provider, object? value)
+        {
+            if (provider == null || context == null || context.Instance is not Spine)
+                return value;
+
+            IWindowsFormsEditorService editorService = provider.GetService(typeof(IWindowsFormsEditorService)) as IWindowsFormsEditorService;
+            if (editorService == null)
+                return value;
+
+            using (var dialog = new AnimationTracksEditorDialog((Spine)context.Instance))
+                editorService.ShowDialog(dialog);
+
+            TypeDescriptor.Refresh(context.Instance);
+            return value;
+        }
+    }
+
+    /// <summary>
+    /// 多轨道动画编辑器
+    /// </summary>
+    public class SkinManagerEditor : UITypeEditor
+    {
+        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext? context) => UITypeEditorEditStyle.Modal;
+
+        public override object? EditValue(ITypeDescriptorContext? context, IServiceProvider provider, object? value)
+        {
+            if (provider == null || context == null || context.Instance is not Spine)
+                return value;
+
+            IWindowsFormsEditorService editorService = provider.GetService(typeof(IWindowsFormsEditorService)) as IWindowsFormsEditorService;
+            if (editorService == null)
+                return value;
+
+            using (var dialog = new SkinManagerEditorDialog((Spine)context.Instance))
+                editorService.ShowDialog(dialog);
+
+            TypeDescriptor.Refresh(context.Instance);
+            return value;
+        }
+    }
 }

SpineViewer/SpineViewer.csproj

@@ -7,7 +7,7 @@
         <TargetFramework>net8.0-windows</TargetFramework>
         <BaseOutputPath>$(SolutionDir)out</BaseOutputPath>
         <IncludeSourceRevisionInInformationalVersion>false</IncludeSourceRevisionInInformationalVersion>
-        <Version>0.11.5</Version>
+        <Version>0.12.1</Version>
         <OutputType>WinExe</OutputType>
         <UseWindowsForms>true</UseWindowsForms>
         <ApplicationIcon>appicon.ico</ApplicationIcon>

SpineViewer/Win32.cs

@@ -0,0 +1,177 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SpineViewer
+{
+    /// <summary>
+    /// Win32 Sdk 包装类
+    /// </summary>
+    public static class Win32
+    {
+        public const int GWL_STYLE = -16;
+        public const int WS_SIZEBOX = 0x40000;
+        public const int WS_BORDER = 0x800000;
+        public const int WS_POPUP = unchecked((int)0x80000000);
+
+        public const int GWL_EXSTYLE = -20;
+        public const int WS_EX_TOPMOST = 0x8;
+        public const int WS_EX_TRANSPARENT = 0x20;
+        public const int WS_EX_TOOLWINDOW = 0x80;
+        public const int WS_EX_WINDOWEDGE = 0x100;
+        public const int WS_EX_CLIENTEDGE = 0x200;
+        public const int WS_EX_LAYERED = 0x80000;
+        public const int WS_EX_OVERLAPPEDWINDOW = WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE;
+
+        public const uint LWA_COLORKEY = 0x1;
+        public const uint LWA_ALPHA = 0x2;
+
+        public const byte AC_SRC_OVER = 0x00;
+        public const byte AC_SRC_ALPHA = 0x01;
+
+        public const int ULW_COLORKEY = 0x00000001;
+        public const int ULW_ALPHA = 0x00000002;
+        public const int ULW_OPAQUE = 0x00000004;
+
+        public const IntPtr HWND_TOPMOST = -1;
+
+        public const uint SWP_NOSIZE = 0x0001;
+        public const uint SWP_NOMOVE = 0x0002;
+        public const uint SWP_NOZORDER = 0x0004;
+        public const uint SWP_FRAMECHANGED = 0x0020;
+        public const uint SWP_REFRESHLONG = SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_FRAMECHANGED;
+
+        public const int WM_SPAWN_WORKER = 0x052C; // 一个未公开的神秘消息
+
+        public const uint SMTO_NORMAL = 0x0000;
+        public const uint SMTO_BLOCK = 0x0001;
+        public const uint SMTO_ABORTIFHUNG = 0x0002;
+        public const uint SMTO_NOTIMEOUTIFNOTHUNG = 0x0008;
+
+        public const uint GA_PARENT = 1;
+        public const uint GW_OWNER = 4;
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct POINT
+        {
+            public int x;
+            public int y;
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct SIZE
+        {
+            public int cx;
+            public int cy;
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        public struct BLENDFUNCTION
+        {
+            public byte BlendOp;
+            public byte BlendFlags;
+            public byte SourceConstantAlpha;
+            public byte AlphaFormat;
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        private struct LASTINPUTINFO
+        {
+            public uint cbSize;
+            public uint dwTime;
+        }
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr GetDC(IntPtr hWnd);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern int ReleaseDC(IntPtr hWnd, IntPtr hDC);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern int GetWindowLong(IntPtr hWnd, int nIndex);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern bool GetLayeredWindowAttributes(IntPtr hWnd, ref uint crKey, ref byte bAlpha, ref uint dwFlags);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern bool SetLayeredWindowAttributes(IntPtr hWnd, uint pcrKey, byte pbAlpha, uint pdwFlags);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern bool UpdateLayeredWindow(IntPtr hWnd, IntPtr hdcDst, IntPtr pptDst, ref SIZE psize, IntPtr hdcSrc, ref POINT pptSrc, int crKey, ref BLENDFUNCTION pblend, int dwFlags);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern uint GetDoubleClickTime();
+
+        [DllImport("user32.dll", SetLastError = true)]
+        private static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr SendMessageTimeout(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam, uint fuFlags, uint uTimeout, out IntPtr lpdwResult);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, string windowTitle);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr GetParent(IntPtr hWnd);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr GetAncestor(IntPtr hWnd, uint gaFlags);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr GetWindow(IntPtr hWnd, uint uCmd);
+
+        [DllImport("gdi32.dll", SetLastError = true)]
+        public static extern IntPtr CreateCompatibleDC(IntPtr hdc);
+
+        [DllImport("gdi32.dll", SetLastError = true)]
+        public static extern bool DeleteDC(IntPtr hdc);
+
+        [DllImport("gdi32.dll", SetLastError = true)]
+        public static extern IntPtr SelectObject(IntPtr hdc, IntPtr hgdiobj);
+
+        [DllImport("gdi32.dll", SetLastError = true)]
+        public static extern bool DeleteObject(IntPtr hObject);
+
+        public static TimeSpan GetLastInputElapsedTime()
+        {
+            LASTINPUTINFO lastInputInfo = new();
+            lastInputInfo.cbSize = (uint)Marshal.SizeOf(lastInputInfo);
+
+            uint idleTimeMillis = 1000;
+            if (GetLastInputInfo(ref lastInputInfo))
+            {
+                uint tickCount = (uint)Environment.TickCount;
+                uint lastInputTick = lastInputInfo.dwTime;
+                idleTimeMillis = tickCount - lastInputTick;
+            }
+            return TimeSpan.FromMilliseconds(idleTimeMillis);
+        }
+
+        public static IntPtr GetWorkerW()
+        {
+            var progman = FindWindow("Progman", null);
+            if (progman == IntPtr.Zero)
+                return IntPtr.Zero;
+            IntPtr hWnd = FindWindowEx(progman, 0, "WorkerW", null);
+            Debug.WriteLine($"{hWnd:x8}");
+            return hWnd;
+        }
+    }
+}