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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
|
danakj
2017/01/27 16:25:17
2017 in new files
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| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CC_SURFACES_LOCAL_FRAME_ID_H_ | 5 #ifndef CC_SURFACES_LOCAL_SURFACE_ID_H_ |
| 6 #define CC_SURFACES_LOCAL_FRAME_ID_H_ | 6 #define CC_SURFACES_LOCAL_SURFACE_ID_H_ |
| 7 | 7 |
| 8 #include <inttypes.h> | 8 #include <inttypes.h> |
| 9 | 9 |
| 10 #include <iosfwd> | 10 #include <iosfwd> |
| 11 #include <string> | 11 #include <string> |
| 12 #include <tuple> | 12 #include <tuple> |
| 13 | 13 |
| 14 #include "base/hash.h" | 14 #include "base/hash.h" |
| 15 #include "base/unguessable_token.h" | 15 #include "base/unguessable_token.h" |
| 16 #include "mojo/public/cpp/bindings/struct_traits.h" | 16 #include "mojo/public/cpp/bindings/struct_traits.h" |
| 17 | 17 |
| 18 namespace cc { | 18 namespace cc { |
| 19 namespace mojom { | 19 namespace mojom { |
| 20 class LocalFrameIdDataView; | 20 class LocalSurfaceIdDataView; |
| 21 } | 21 } |
| 22 | 22 |
| 23 class LocalFrameId { | 23 class LocalSurfaceId { |
| 24 public: | 24 public: |
| 25 constexpr LocalFrameId() : local_id_(0) {} | 25 constexpr LocalSurfaceId() : local_id_(0) {} |
| 26 | 26 |
| 27 constexpr LocalFrameId(const LocalFrameId& other) | 27 constexpr LocalSurfaceId(const LocalSurfaceId& other) |
| 28 : local_id_(other.local_id_), nonce_(other.nonce_) {} | 28 : local_id_(other.local_id_), nonce_(other.nonce_) {} |
| 29 | 29 |
| 30 constexpr LocalFrameId(uint32_t local_id, const base::UnguessableToken& nonce) | 30 constexpr LocalSurfaceId(uint32_t local_id, |
| 31 const base::UnguessableToken& nonce) | |
| 31 : local_id_(local_id), nonce_(nonce) {} | 32 : local_id_(local_id), nonce_(nonce) {} |
| 32 | 33 |
| 33 constexpr bool is_valid() const { | 34 constexpr bool is_valid() const { |
| 34 return local_id_ != 0 && !nonce_.is_empty(); | 35 return local_id_ != 0 && !nonce_.is_empty(); |
| 35 } | 36 } |
| 36 | 37 |
| 37 constexpr uint32_t local_id() const { return local_id_; } | 38 constexpr uint32_t local_id() const { return local_id_; } |
| 38 | 39 |
| 39 constexpr const base::UnguessableToken& nonce() const { return nonce_; } | 40 constexpr const base::UnguessableToken& nonce() const { return nonce_; } |
| 40 | 41 |
| 41 bool operator==(const LocalFrameId& other) const { | 42 bool operator==(const LocalSurfaceId& other) const { |
| 42 return local_id_ == other.local_id_ && nonce_ == other.nonce_; | 43 return local_id_ == other.local_id_ && nonce_ == other.nonce_; |
| 43 } | 44 } |
| 44 | 45 |
| 45 bool operator!=(const LocalFrameId& other) const { return !(*this == other); } | 46 bool operator!=(const LocalSurfaceId& other) const { |
| 47 return !(*this == other); | |
| 48 } | |
| 46 | 49 |
| 47 bool operator<(const LocalFrameId& other) const { | 50 bool operator<(const LocalSurfaceId& other) const { |
| 48 return std::tie(local_id_, nonce_) < | 51 return std::tie(local_id_, nonce_) < |
| 49 std::tie(other.local_id_, other.nonce_); | 52 std::tie(other.local_id_, other.nonce_); |
| 50 } | 53 } |
| 51 | 54 |
| 52 size_t hash() const { | 55 size_t hash() const { |
| 53 return base::HashInts( | 56 return base::HashInts( |
| 54 local_id_, static_cast<uint64_t>(base::UnguessableTokenHash()(nonce_))); | 57 local_id_, static_cast<uint64_t>(base::UnguessableTokenHash()(nonce_))); |
| 55 } | 58 } |
| 56 | 59 |
| 57 std::string ToString() const; | 60 std::string ToString() const; |
| 58 | 61 |
| 59 private: | 62 private: |
| 60 friend struct mojo::StructTraits<mojom::LocalFrameIdDataView, LocalFrameId>; | 63 friend struct mojo::StructTraits<mojom::LocalSurfaceIdDataView, |
| 64 LocalSurfaceId>; | |
| 61 | 65 |
| 62 uint32_t local_id_; | 66 uint32_t local_id_; |
| 63 base::UnguessableToken nonce_; | 67 base::UnguessableToken nonce_; |
| 64 }; | 68 }; |
| 65 | 69 |
| 66 std::ostream& operator<<(std::ostream& out, const LocalFrameId& local_frame_id); | 70 std::ostream& operator<<(std::ostream& out, |
| 71 const LocalSurfaceId& local_surface_id); | |
| 67 | 72 |
| 68 struct LocalFrameIdHash { | 73 struct LocalSurfaceIdHash { |
| 69 size_t operator()(const LocalFrameId& key) const { return key.hash(); } | 74 size_t operator()(const LocalSurfaceId& key) const { return key.hash(); } |
| 70 }; | 75 }; |
| 71 | 76 |
| 72 } // namespace cc | 77 } // namespace cc |
| 73 | 78 |
| 74 #endif // CC_SURFACES_LOCAL_FRAME_ID_H_ | 79 #endif // CC_SURFACES_LOCAL_SURFACE_ID_H_ |
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