From 261a242486adde570f19ff69e9d042c428ac2aae Mon Sep 17 00:00:00 2001
From: Joshua Ashton <joshua@froggi.es>
Date: Wed, 19 Feb 2020 18:05:50 +0000
Subject: [PATCH] [d3d9] Disallow GetFrontBufferData for anything but
 D3DPOOL_SYSTEMMEM

Fixes #1464
---
 src/d3d9/d3d9_swapchain.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/d3d9/d3d9_swapchain.cpp b/src/d3d9/d3d9_swapchain.cpp
index 60ea67e2f..28c681931 100644
--- a/src/d3d9/d3d9_swapchain.cpp
+++ b/src/d3d9/d3d9_swapchain.cpp
@@ -172,6 +172,9 @@ namespace dxvk {
     D3D9CommonTexture* dstTexInfo = dst->GetCommonTexture();
     D3D9CommonTexture* srcTexInfo = m_backBuffers[m_presentParams.BackBufferCount]->GetCommonTexture();
 
+    if (unlikely(dstTexInfo->Desc()->Pool != D3DPOOL_SYSTEMMEM))
+      return D3DERR_INVALIDCALL;
+
     Rc<DxvkBuffer> dstBuffer = dstTexInfo->GetBuffer(dst->GetSubresource());
     Rc<DxvkImage>  srcImage  = srcTexInfo->GetImage();