GPU/HW: Don't display a deleted texture in D3D/OpenGL when updating settings

src/core/gpu_hw_d3d11.cpp

@@ -122,7 +122,10 @@ void GPU_HW_D3D11::UpdateSettings()
   UpdateHWSettings(&needs_new_framebuffer, &needs_new_shaders);
 
   if (needs_new_framebuffer)
+  {
+    m_host_display->ClearDisplayTexture();
     CreateFramebuffer();
+  }
   if (needs_new_shaders)
     CompileShaders();
 

src/core/gpu_hw_opengl.cpp

@@ -126,7 +126,10 @@ void GPU_HW_OpenGL::UpdateSettings()
   UpdateHWSettings(&framebuffer_changed, &shaders_changed);
 
   if (framebuffer_changed)
+  {
+    m_host_display->ClearDisplayTexture();
     CreateFramebuffer();
+  }
   if (shaders_changed)
     CompilePrograms();