chromium/components/viz/common/surfaces/surface_range.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_VIZ_COMMON_SURFACES_SURFACE_RANGE_H_
#define COMPONENTS_VIZ_COMMON_SURFACES_SURFACE_RANGE_H_

#include <compare>
#include <optional>
#include <string>

#include "components/viz/common/surfaces/surface_id.h"
#include "components/viz/common/viz_common_export.h"
#include "mojo/public/cpp/bindings/struct_traits.h"

namespace viz {

namespace mojom {
class SurfaceRangeDataView;
}

// SurfaceRange consists of two SurfaceIds representing a range of surfaces
// [start,end] ordered by SurfaceId where |start| is an optional surface
// which acts like a "fallback" surface in case it exists.
class VIZ_COMMON_EXPORT SurfaceRange { … };

VIZ_COMMON_EXPORT std::ostream& operator<<(std::ostream& out,
                                           const SurfaceRange& surface_range);

}  // namespace viz

#endif  // COMPONENTS_VIZ_COMMON_SURFACES_SURFACE_RANGE_H_