1 files changed, 34 insertions, 0 deletions
diff --git a/gfx/thebes/DisplayConfigWindows.h b/gfx/thebes/DisplayConfigWindows.h
new file mode 100644
index 0000000000..62bc03cf3d
--- /dev/null
+++ b/gfx/thebes/DisplayConfigWindows.h
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_gfx_thebes_DisplayConfigWindows_h
+#define mozilla_gfx_thebes_DisplayConfigWindows_h
+
+#include <optional>  // for std::optional
+#include <utility>   // for std::pair
+#include <vector>    // for std::vector
+#include <wingdi.h>
+#include "mozilla/gfx/Point.h"  // for IntSize
+#include "nsTArray.h"
+
+namespace mozilla {
+namespace gfx {
+
+struct DisplayConfig {
+  std::vector<DISPLAYCONFIG_PATH_INFO> mPaths;
+  std::vector<DISPLAYCONFIG_MODE_INFO> mModes;
+};
+
+std::optional<DisplayConfig> GetDisplayConfig();
+
+extern bool HasScaledResolution();
+
+typedef nsTArray<std::pair<IntSize, IntSize>> ScaledResolutionSet;
+void GetScaledResolutions(ScaledResolutionSet& aRv);
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif  // mozilla_gfx_thebes_DisplayConfigWindows_h