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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 COMPONENTS_VIZ_COMMON_SURFACES_FRAME_SINK_BUNDLE_ID_H_
#define COMPONENTS_VIZ_COMMON_SURFACES_FRAME_SINK_BUNDLE_ID_H_
#include <stdint.h>
#include <compare>
#include "base/hash/hash.h"
#include "components/viz/common/viz_common_export.h"
namespace viz {
// A FrameSinkBundleId uniquely identifies a FrameSinkBundle and the client that
// uses it within the Viz compositing system.
class VIZ_COMMON_EXPORT FrameSinkBundleId {
public:
constexpr FrameSinkBundleId() = default;
constexpr FrameSinkBundleId(const FrameSinkBundleId& other) = default;
constexpr FrameSinkBundleId& operator=(const FrameSinkBundleId& other) =
default;
constexpr FrameSinkBundleId(uint32_t client_id, uint32_t bundle_id)
: client_id_(client_id), bundle_id_(bundle_id) {}
constexpr bool is_valid() const { return client_id_ != 0 || bundle_id_ != 0; }
constexpr uint32_t client_id() const { return client_id_; }
constexpr uint32_t bundle_id() const { return bundle_id_; }
friend std::strong_ordering operator<=>(const FrameSinkBundleId&,
const FrameSinkBundleId&) = default;
size_t hash() const { return base::HashInts(client_id_, bundle_id_); }
private:
uint32_t client_id_{0};
uint32_t bundle_id_{0};
};
struct FrameSinkBundleIdHash {
size_t operator()(const FrameSinkBundleId& key) const { return key.hash(); }
};
} // namespace viz
#endif // COMPONENTS_VIZ_COMMON_SURFACES_FRAME_SINK_BUNDLE_ID_H_
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