GPUThread: Fix input OSD with threaded rendering off

src/core/gpu_thread.cpp

@@ -1013,6 +1013,19 @@ std::pair<GPUThreadCommand*, void*> GPUThread::BeginASyncBufferCall(AsyncBufferC
   return std::make_pair(static_cast<GPUThreadCommand*>(cmd), buffer);
 }
 
+void GPUThread::EndASyncBufferCall(GPUThreadCommand* cmd)
+{
+  if (!s_state.use_gpu_thread) [[unlikely]]
+  {
+    GPUThreadAsyncCallCommand* const acmd = static_cast<GPUThreadAsyncCallCommand*>(cmd);
+    acmd->func();
+    acmd->~GPUThreadAsyncCallCommand();
+    return;
+  }
+
+  PushCommand(cmd);
+}
+
 void GPUThread::UpdateSettings(bool gpu_settings_changed, bool device_settings_changed)
 {
   if (device_settings_changed)

src/core/gpu_thread.h

@@ -73,6 +73,7 @@ bool IsUsingThread();
 void RunOnThread(AsyncCallType func);
 void RunOnBackend(AsyncBackendCallType func, bool sync, bool spin_or_wake);
 std::pair<GPUThreadCommand*, void*> BeginASyncBufferCall(AsyncBufferCallType func, u32 buffer_size);
+void EndASyncBufferCall(GPUThreadCommand* cmd);
 void SetVSync(GPUVSyncMode mode, bool allow_present_throttle);
 
 // Should only be called on the GPU thread.

src/core/imgui_overlays.cpp

@@ -729,7 +729,7 @@ void ImGuiManager::UpdateInputOverlay()
     }
   }
 
-  GPUThread::PushCommand(cmd);
+  GPUThread::EndASyncBufferCall(cmd);
 }
 
 void ImGuiManager::UpdateInputOverlay(void* buffer)