From b0bf5e0cfd82bfd155acc4da322d830b7a370e41 Mon Sep 17 00:00:00 2001
From: VaDiM <vadim.4.ivanov@gmail.com>
Date: Sun, 14 May 2023 22:28:04 +0300
Subject: [PATCH] Optimize drawing performance of packed sprites

- Restored some code from an earlier version (https://github.com/Perfare/AssetStudio/commit/e501940f035cbf561e22350bb1c8fb3f0be7fe31), since it works faster for packed sprites with a small number of triangles
---
 AssetStudioUtility/SpriteHelper.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/AssetStudioUtility/SpriteHelper.cs b/AssetStudioUtility/SpriteHelper.cs
index acb35e1..8d6d735 100644
--- a/AssetStudioUtility/SpriteHelper.cs
+++ b/AssetStudioUtility/SpriteHelper.cs
@@ -149,6 +149,13 @@ namespace AssetStudio
                                     AlphaCompositionMode = PixelAlphaCompositionMode.DestOut
                                 }
                             };
+                            if (triangles.Length < 1024)
+                            {
+                                var rectP = new RectangularPolygon(0, 0, rect.Width, rect.Height);
+                                spriteImage.Mutate(x => x.Fill(options, SixLabors.ImageSharp.Color.Red, rectP.Clip(path)));
+                                spriteImage.Mutate(x => x.Flip(FlipMode.Vertical));
+                                return spriteImage;
+                            }
                             using (var mask = new Image<Bgra32>(rect.Width, rect.Height, SixLabors.ImageSharp.Color.Black))
                             {
                                 mask.Mutate(x => x.Fill(options, SixLabors.ImageSharp.Color.Red, path));