From aa43466f2e229656b8fc1d893796393ca8ffa613 Mon Sep 17 00:00:00 2001
From: Dedmen Miller <dedmen@dedmen.de>
Date: Sat, 14 Feb 2026 17:03:24 +0100
Subject: [PATCH] Fix CPU fallback when D3D11CreateDevice fails

Fixes #16
---
 src/win/AppWin.cpp                | 3 +++
 src/win/d3d11/GPUContextD3D11.cpp | 1 +
 2 files changed, 4 insertions(+)

diff --git a/src/win/AppWin.cpp b/src/win/AppWin.cpp
index fe01307..e034be0 100644
--- a/src/win/AppWin.cpp
+++ b/src/win/AppWin.cpp
@@ -115,6 +115,9 @@ AppWin::AppWin(Settings settings, Config config)
             Platform::instance().set_gpu_driver(gpu_driver_.get());
         } else {
             gpu_context_.reset();
+            // CPU fallback
+            surface_factory_.reset(new DIBSurfaceFactory(GetDC(0)));
+            Platform::instance().set_surface_factory(surface_factory_.get());
         }
 #elif defined(DRIVER_D3D12)
         gpu_context_.reset(new GPUContextD3D12());
diff --git a/src/win/d3d11/GPUContextD3D11.cpp b/src/win/d3d11/GPUContextD3D11.cpp
index 2a29e01..b75fdd9 100644
--- a/src/win/d3d11/GPUContextD3D11.cpp
+++ b/src/win/d3d11/GPUContextD3D11.cpp
@@ -62,6 +62,7 @@ GPUContextD3D11::GPUContextD3D11() {
     // Failed to create D3D11 device, fallback to CPU renderer
     immediate_context_.Reset();
     device_.Reset();
+    return;
   }
 
   // Create Enabled Blend State