GPU/HW: Reset state when shutting down

src/core/gpu_hw_d3d11.cpp

@@ -12,8 +12,12 @@ Log_SetChannel(GPU_HW_D3D11);
 GPU_HW_D3D11::GPU_HW_D3D11() = default;
 
 GPU_HW_D3D11::~GPU_HW_D3D11()
+{
+  if (m_host_display)
   {
     m_host_display->SetDisplayTexture(nullptr, 0, 0, 0, 0, 0, 0, 1.0f);
+    ResetGraphicsAPIState();
+  }
 }
 
 bool GPU_HW_D3D11::Initialize(HostDisplay* host_display, System* system, DMA* dma,

src/core/gpu_hw_opengl.cpp

@@ -10,9 +10,12 @@ Log_SetChannel(GPU_HW_OpenGL);
 GPU_HW_OpenGL::GPU_HW_OpenGL() : GPU_HW() {}
 
 GPU_HW_OpenGL::~GPU_HW_OpenGL()
+{
+  if (m_host_display)
   {
     m_host_display->SetDisplayTexture(nullptr, 0, 0, 0, 0, 0, 0, 1.0f);
-  DestroyFramebuffer();
+    ResetGraphicsAPIState();
+  }
 }
 
 bool GPU_HW_OpenGL::Initialize(HostDisplay* host_display, System* system, DMA* dma,