From 3d8db458cdaf2cb9e48a4bb2e36817c2a6d253a1 Mon Sep 17 00:00:00 2001
From: matsutaka <matsutaka@pixiv.co.jp>
Date: Wed, 12 Mar 2025 15:49:05 +0900
Subject: [PATCH] =?UTF-8?q?chore:=20ArraySegment.ToArray()=E3=81=AE?=
 =?UTF-8?q?=E5=91=BC=E3=81=B3=E5=87=BA=E3=81=97=E3=81=AB=E3=82=88=E3=82=8B?=
 =?UTF-8?q?GC=20Alloc=E3=82=92=E8=BB=BD=E6=B8=9B?=
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ArraySegment.AsSpan() によって Span を取得し、
NativeArray.AsSpan() で得たコピー先 Span に向けて
Span.CopyTo() によるコピーを行う。

data.Array[] による ArraySegment.ToArray() の呼び出しが無くなった結果、
GC Alloc が減少する。
---
 Assets/UniGLTF/Runtime/UniGLTF/IO/NativeArrayManager.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/NativeArrayManager.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/NativeArrayManager.cs
index b02250bbb..3fdce7985 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/NativeArrayManager.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/NativeArrayManager.cs
@@ -69,8 +69,9 @@ namespace UniGLTF
         public NativeArray<T> CreateNativeArray<T>(ArraySegment<T> data) where T : struct
         {
             var array = CreateNativeArray<T>(data.Count);
-            for (int i = 0; i < data.Count; i++)
-                array[i] = data.Array[data.Offset + i];
+            var toSpan = array.AsSpan();
+            var fromSpan = data.AsSpan();
+            fromSpan.CopyTo(toSpan);
             return array;
         }