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1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 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 GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_ | 5 #ifndef GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_ |
6 #define GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_ | 6 #define GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_ |
7 | 7 |
8 #include "base/containers/hash_tables.h" | 8 #include "base/containers/hash_tables.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
10 #include "gpu/gpu_export.h" | 10 #include "gpu/gpu_export.h" |
11 | 11 |
12 namespace gpu { | 12 namespace gpu { |
13 | 13 |
14 // Used to maintain Valuebuffer state, exposed to browser to | 14 // Used to maintain Valuebuffer state, exposed to browser to |
15 // support passing ValueStates via IPC. | 15 // support passing ValueStates via IPC. |
16 union GPU_EXPORT ValueState { | 16 union GPU_EXPORT ValueState { |
17 float float_value[4]; | 17 float float_value[4]; |
18 int int_value[4]; | 18 int int_value[4]; |
19 }; | 19 }; |
20 | 20 |
21 // Refcounted wrapper for a hash_map of subscription targets to ValueStates | 21 // Refcounted wrapper for a hash_map of subscription targets to ValueStates |
22 class GPU_EXPORT ValueStateMap : public base::RefCounted<ValueStateMap> { | 22 // TODO(mgiuca): Avoid using UnsafeRefCounted. http://crbug.com/469952. |
| 23 class GPU_EXPORT ValueStateMap : public base::UnsafeRefCounted<ValueStateMap> { |
23 public: | 24 public: |
24 ValueStateMap(); | 25 ValueStateMap(); |
25 | 26 |
26 // Returns NULL if there is not ValueState for the target | 27 // Returns NULL if there is not ValueState for the target |
27 const ValueState* GetState(unsigned int target) const; | 28 const ValueState* GetState(unsigned int target) const; |
28 | 29 |
29 void UpdateState(unsigned int target, const ValueState& state); | 30 void UpdateState(unsigned int target, const ValueState& state); |
30 | 31 |
31 protected: | 32 protected: |
32 virtual ~ValueStateMap(); | 33 virtual ~ValueStateMap(); |
33 | 34 |
34 private: | 35 private: |
35 friend class base::RefCounted<ValueStateMap>; | 36 friend class base::UnsafeRefCounted<ValueStateMap>; |
36 | 37 |
37 typedef base::hash_map<unsigned int, ValueState> Map; | 38 typedef base::hash_map<unsigned int, ValueState> Map; |
38 | 39 |
39 Map state_map_; | 40 Map state_map_; |
40 | 41 |
41 DISALLOW_COPY_AND_ASSIGN(ValueStateMap); | 42 DISALLOW_COPY_AND_ASSIGN(ValueStateMap); |
42 }; | 43 }; |
43 | 44 |
44 } // namespace gpu | 45 } // namespace gpu |
45 | 46 |
46 #endif // GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_ | 47 #endif // GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_ |
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