File: overlay_priority_hint.h

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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_OVERLAY_PRIORITY_HINT_H_
#define UI_GFX_OVERLAY_PRIORITY_HINT_H_

#include <stdint.h>

namespace gfx {

// Provides a hint to a system compositor how it should prioritize this
// overlay. Used only by Wayland.
enum OverlayPriorityHint : uint8_t {
  // Overlay promotion is not necessary for this surface.
  kNone = 0,
  // The overlay could be considered as a candidate for promotion.
  kRegular,
  // Low latency quad.
  kLowLatencyCanvas,
  // The overlay contains protected content and requires to be promoted to
  // overlay.
  kHardwareProtection,
  // The overlay contains a video. Can be a candidate for promotion.
  kVideo,
};

}  // namespace gfx

#endif  // UI_GFX_OVERLAY_PRIORITY_HINT_H_