From d8af8e4a6067f505ee2e7cd8716293b96611df65 Mon Sep 17 00:00:00 2001
From: Stenzek <stenzek@gmail.com>
Date: Wed, 11 Dec 2024 16:09:30 +1000
Subject: [PATCH] GPU/HW: Fix possibly-stale display with MSAA+Show VRAM

---
 src/core/gpu_hw.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/gpu_hw.cpp b/src/core/gpu_hw.cpp
index 14fd6e2a87..119ee15b7f 100644
--- a/src/core/gpu_hw.cpp
+++ b/src/core/gpu_hw.cpp
@@ -3853,7 +3853,7 @@ void GPU_HW::UpdateDisplay()
   {
     if (IsUsingMultisampling())
     {
-      UpdateVRAMReadTexture(true, true);
+      UpdateVRAMReadTexture(!m_vram_dirty_draw_rect.eq(INVALID_RECT), !m_vram_dirty_write_rect.eq(INVALID_RECT));
       SetDisplayTexture(m_vram_read_texture.get(), nullptr, 0, 0, m_vram_read_texture->GetWidth(),
                         m_vram_read_texture->GetHeight());
     }