[UI/D3D12] Small refactoring, allow BeginSwap to return false if no surface

2020-09-14 23:27:19 +03:00
parent acb1fc059f
commit dfbe36a8aa
9 changed files with 149 additions and 132 deletions
--- a/src/xenia/ui/window.cc
+++ b/src/xenia/ui/window.cc
@@ -200,11 +200,15 @@ void Window::OnPaint(UIEvent* e) {
  io.DisplaySize = ImVec2(static_cast<float>(scaled_width()),
                          static_cast<float>(scaled_height()));

-  context_->BeginSwap();
+  bool can_swap = context_->BeginSwap();
  if (context_->WasLost()) {
    on_context_lost(e);
    return;
  }
+  if (!can_swap) {
+    // Surface not available.
+    return;
+  }

  ImGui::NewFrame();