From 31daed9e81799eae49ac354f6ad8d31fe74f80ca Mon Sep 17 00:00:00 2001
From: ww-rm <ww-rm@qq.com>
Date: Sun, 26 Oct 2025 21:49:58 +0800
Subject: [PATCH] =?UTF-8?q?=E7=A7=BB=E9=99=A4=E4=B8=8D=E5=8F=97=E6=94=AF?=
 =?UTF-8?q?=E6=8C=81=E7=9A=84=E5=9B=BE=E5=83=8F=E6=A0=BC=E5=BC=8F?=
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---
 Spine/Exporters/FrameExporter.cs              | 29 ++++++++++++++++++-
 .../Exporters/FrameExporterViewModel.cs       |  6 +++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/Spine/Exporters/FrameExporter.cs b/Spine/Exporters/FrameExporter.cs
index f73f202..9ec7198 100644
--- a/Spine/Exporters/FrameExporter.cs
+++ b/Spine/Exporters/FrameExporter.cs
@@ -18,7 +18,23 @@ namespace Spine.Exporters
         public FrameExporter(uint width = 100, uint height = 100) : base(width, height) { }
         public FrameExporter(Vector2u resolution) : base(resolution) { }
 
-        public SKEncodedImageFormat Format { get => _format; set => _format = value; }
+        public SKEncodedImageFormat Format 
+        { 
+            get => _format; 
+            set {
+                switch (value)
+                {
+                    case SKEncodedImageFormat.Jpeg:
+                    case SKEncodedImageFormat.Png:
+                    case SKEncodedImageFormat.Webp:
+                        _format = value;
+                        break;
+                    default:
+                        _logger.Warn("Omit unsupported exporter format: {0}", value);
+                        break;
+                }
+            }
+        }
         protected SKEncodedImageFormat _format = SKEncodedImageFormat.Png;
 
         public int Quality { get => _quality; set => _quality = Math.Clamp(value, 0, 100); }
@@ -33,5 +49,16 @@ namespace Spine.Exporters
             using var stream = File.OpenWrite(output);
             data.SaveTo(stream);
         }
+
+        /// <summary>
+        /// 获取画面数据, 正常像素, 非预乘
+        /// </summary>
+        public SKData Export(params SpineObject[] spines)
+        {
+            using var frame = GetFrame(spines);
+            var info = new SKImageInfo(frame.Width, frame.Height, SKColorType.Rgba8888, SKAlphaType.Premul);
+            using var skImage = SKImage.FromPixelCopy(info, frame.Image.Pixels);
+            return skImage.Encode(SKEncodedImageFormat.Png, 100);
+        }
     }
 }
diff --git a/SpineViewer/ViewModels/Exporters/FrameExporterViewModel.cs b/SpineViewer/ViewModels/Exporters/FrameExporterViewModel.cs
index 5a27099..4157131 100644
--- a/SpineViewer/ViewModels/Exporters/FrameExporterViewModel.cs
+++ b/SpineViewer/ViewModels/Exporters/FrameExporterViewModel.cs
@@ -20,7 +20,11 @@ namespace SpineViewer.ViewModels.Exporters
 {
     public class FrameExporterViewModel(MainWindowViewModel vmMain) : BaseExporterViewModel(vmMain)
     {
-        public static ImmutableArray<SKEncodedImageFormat> FrameFormatOptions { get; } = Enum.GetValues<SKEncodedImageFormat>().ToImmutableArray();
+        public static ImmutableArray<SKEncodedImageFormat> FrameFormatOptions { get; } = [
+            SKEncodedImageFormat.Png, 
+            SKEncodedImageFormat.Webp,
+            SKEncodedImageFormat.Jpeg,
+        ];
 
         public SKEncodedImageFormat Format { get => _format; set => SetProperty(ref _format, value); }
         protected SKEncodedImageFormat _format = SKEncodedImageFormat.Png;