Android: Handle some possible surface loss cases

android/app/src/cpp/android_host_interface.cpp

@@ -754,13 +754,13 @@ void AndroidHostInterface::SurfaceChanged(ANativeWindow* surface, int format, in
     wi.surface_refresh_rate = GetRefreshRate();
     wi.surface_scale = GetSurfaceScale(width, height);
 
-    m_display->ChangeRenderWindow(wi);
+    const bool surface_valid = m_display->ChangeRenderWindow(wi) && surface;
-    if (surface)
+    if (surface_valid)
       OnHostDisplayResized();
 
-    if (surface && System::GetState() == System::State::Paused)
+    if (surface_valid && System::GetState() == System::State::Paused)
       PauseSystem(false);
-    else if (!surface && System::IsRunning())
+    else if (!surface_valid && System::IsRunning())
       PauseSystem(true);
   }
 }

src/common/vulkan/swap_chain.cpp

@@ -742,7 +742,8 @@ bool SwapChain::ResizeSwapChain(u32 new_width /* = 0 */, u32 new_height /* = 0 *
 
   if (!CreateSwapChain() || !SetupSwapChainImages())
   {
-    Panic("Failed to re-configure swap chain images, this is fatal (for now)");
+    DestroySwapChainImages();
+    DestroySwapChain();
     return false;
   }
 
@@ -755,7 +756,8 @@ bool SwapChain::RecreateSwapChain()
 
   if (!CreateSwapChain() || !SetupSwapChainImages())
   {
-    Panic("Failed to re-configure swap chain images, this is fatal (for now)");
+    DestroySwapChainImages();
+    DestroySwapChain();
     return false;
   }
 

src/frontend-common/vulkan_host_display.cpp

@@ -576,7 +576,7 @@ bool VulkanHostDisplay::DoneRenderContextCurrent()
 
 bool VulkanHostDisplay::Render()
 {
-  if (ShouldSkipDisplayingFrame())
+  if (ShouldSkipDisplayingFrame() || !m_swap_chain)
   {
     if (ImGui::GetCurrentContext())
       ImGui::Render();
@@ -602,6 +602,7 @@ bool VulkanHostDisplay::Render()
       {
         Log_ErrorPrint("Failed to recreate surface after loss");
         g_vulkan_context->ExecuteCommandBuffer(false);
+        m_swap_chain.reset();
         return false;
       }