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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
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_SURFACE_ID_H_ | 5 #ifndef CC_SURFACES_SURFACE_ID_H_ |
6 #define CC_SURFACES_SURFACE_ID_H_ | 6 #define CC_SURFACES_SURFACE_ID_H_ |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
9 #include "base/containers/hash_tables.h" | 9 #include "base/containers/hash_tables.h" |
10 | 10 |
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27 return !(a == b); | 27 return !(a == b); |
28 } | 28 } |
29 | 29 |
30 inline bool operator<(const SurfaceId& a, const SurfaceId& b) { | 30 inline bool operator<(const SurfaceId& a, const SurfaceId& b) { |
31 return a.id < b.id; | 31 return a.id < b.id; |
32 } | 32 } |
33 | 33 |
34 } // namespace cc | 34 } // namespace cc |
35 | 35 |
36 namespace BASE_HASH_NAMESPACE { | 36 namespace BASE_HASH_NAMESPACE { |
37 #if defined(COMPILER_MSVC) | |
38 inline size_t hash_value(const cc::SurfaceId& key) { | |
39 return hash_value(key.id); | |
40 } | |
41 #elif defined(COMPILER_GCC) | |
42 template <> | 37 template <> |
43 struct hash<cc::SurfaceId> { | 38 struct hash<cc::SurfaceId> { |
44 size_t operator()(cc::SurfaceId key) const { | 39 size_t operator()(cc::SurfaceId key) const { |
45 return hash<uint64_t>()(key.id); | 40 return hash<uint64_t>()(key.id); |
46 } | 41 } |
47 }; | 42 }; |
48 #else | |
49 #error define a hash function for your compiler | |
50 #endif // COMPILER | |
51 } // namespace BASE_HASH_NAMESPACE | 43 } // namespace BASE_HASH_NAMESPACE |
52 | 44 |
53 #endif // CC_SURFACES_SURFACE_ID_H_ | 45 #endif // CC_SURFACES_SURFACE_ID_H_ |
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