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// Copyright 2016 The Chromium Authors. All rights reserved.
// 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_ID_H_
#define COMPONENTS_VIZ_COMMON_SURFACES_FRAME_SINK_ID_H_
#include <stdint.h>
#include <iosfwd>
#include <string>
#include <tuple>
#include "base/hash.h"
#include "components/viz/common/viz_common_export.h"
namespace viz {
class VIZ_COMMON_EXPORT FrameSinkId {
public:
constexpr FrameSinkId() : client_id_(0), sink_id_(0) {}
constexpr FrameSinkId(const FrameSinkId& other)
: client_id_(other.client_id_), sink_id_(other.sink_id_) {}
constexpr FrameSinkId(uint32_t client_id, uint32_t sink_id)
: client_id_(client_id), sink_id_(sink_id) {}
constexpr bool is_valid() const { return client_id_ != 0 || sink_id_ != 0; }
constexpr uint32_t client_id() const { return client_id_; }
constexpr uint32_t sink_id() const { return sink_id_; }
bool operator==(const FrameSinkId& other) const {
return client_id_ == other.client_id_ && sink_id_ == other.sink_id_;
}
bool operator!=(const FrameSinkId& other) const { return !(*this == other); }
bool operator<(const FrameSinkId& other) const {
return std::tie(client_id_, sink_id_) <
std::tie(other.client_id_, other.sink_id_);
}
size_t hash() const { return base::HashInts(client_id_, sink_id_); }
std::string ToString() const;
private:
uint32_t client_id_;
uint32_t sink_id_;
};
VIZ_COMMON_EXPORT std::ostream& operator<<(std::ostream& out,
const FrameSinkId& frame_sink_id);
struct FrameSinkIdHash {
size_t operator()(const FrameSinkId& key) const { return key.hash(); }
};
} // namespace viz
#endif // COMPONENTS_VIZ_COMMON_SURFACES_FRAME_SINK_ID_H_
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