chromium/components/viz/common/surfaces/child_local_surface_id_allocator.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_CHILD_LOCAL_SURFACE_ID_ALLOCATOR_H_
#define COMPONENTS_VIZ_COMMON_SURFACES_CHILD_LOCAL_SURFACE_ID_ALLOCATOR_H_

#include <stdint.h>

#include "base/unguessable_token.h"
#include "components/viz/common/surfaces/local_surface_id.h"
#include "components/viz/common/surfaces/surface_id.h"
#include "components/viz/common/viz_common_export.h"

namespace viz {

// This is a helper class for generating local surface IDs for a single
// FrameSink. This is not threadsafe, to use from multiple threads wrap this
// class in a mutex.
// The parent embeds a child's surface. The child allocates a surface when it
// changes its contents or surface parameters, for example.
// This is that child allocator.
class VIZ_COMMON_EXPORT ChildLocalSurfaceIdAllocator { … };

}  // namespace viz

#endif  // COMPONENTS_VIZ_COMMON_SURFACES_CHILD_LOCAL_SURFACE_ID_ALLOCATOR_H_