From fbb1fc1fdb057322785885cef6a30d29746e2355 Mon Sep 17 00:00:00 2001
From: Swung0x48 <swung0x48@outlook.com>
Date: Tue, 8 Jul 2025 15:44:11 +0800
Subject: [PATCH] [Misc] (MG_State/Buffer): reserve buffer size rounding up to
 next power of 2 to make resize complexity logarithmic

---
 MG/MG_GL/State/Buffer/BufferState.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MG/MG_GL/State/Buffer/BufferState.cpp b/MG/MG_GL/State/Buffer/BufferState.cpp
index 651bd3b3..f5bde535 100644
--- a/MG/MG_GL/State/Buffer/BufferState.cpp
+++ b/MG/MG_GL/State/Buffer/BufferState.cpp
@@ -71,6 +71,7 @@ GLenum BufferState::CommitStorage(GLenum target, GLsizeiptr size, const void* da
     obj.usage = usage;
     obj.isDynamic = (usage == GL_DYNAMIC_DRAW || usage == GL_DYNAMIC_READ ||
                      usage == GL_DYNAMIC_COPY || usage == GL_STREAM_DRAW);
+    obj.data.reserve(std::bit_ceil((size_t)size));
     obj.data.resize(size);
     if (data) {
         memcpy(obj.data.data(), data, size);