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Side by Side Diff: gpu/command_buffer/common/id_allocator.h

Issue 9582024: Revert 124702 - GPU: Buld most of the gpu as a single DLL. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 8 years, 9 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 // This file contains the definition of the IdAllocator class. 5 // This file contains the definition of the IdAllocator class.
6 6
7 #ifndef GPU_COMMAND_BUFFER_CLIENT_ID_ALLOCATOR_H_ 7 #ifndef GPU_COMMAND_BUFFER_CLIENT_ID_ALLOCATOR_H_
8 #define GPU_COMMAND_BUFFER_CLIENT_ID_ALLOCATOR_H_ 8 #define GPU_COMMAND_BUFFER_CLIENT_ID_ALLOCATOR_H_
9 9
10 #include <set> 10 #include <set>
11 #include <utility> 11 #include <utility>
12 12
13 #include "base/compiler_specific.h" 13 #include "base/compiler_specific.h"
14 14
15 #include "../../gpu_export.h"
16 #include "../common/types.h" 15 #include "../common/types.h"
17 16
18 namespace gpu { 17 namespace gpu {
19 18
20 // A resource ID, key to the resource maps. 19 // A resource ID, key to the resource maps.
21 typedef uint32 ResourceId; 20 typedef uint32 ResourceId;
22 // Invalid resource ID. 21 // Invalid resource ID.
23 static const ResourceId kInvalidResource = 0u; 22 static const ResourceId kInvalidResource = 0u;
24 23
25 class GPU_EXPORT IdAllocatorInterface { 24 class IdAllocatorInterface {
26 public: 25 public:
27 virtual ~IdAllocatorInterface(); 26 virtual ~IdAllocatorInterface();
28 27
29 // Allocates a new resource ID. 28 // Allocates a new resource ID.
30 virtual ResourceId AllocateID() = 0; 29 virtual ResourceId AllocateID() = 0;
31 30
32 // Allocates an Id starting at or above desired_id. 31 // Allocates an Id starting at or above desired_id.
33 // Note: may wrap if it starts near limit. 32 // Note: may wrap if it starts near limit.
34 virtual ResourceId AllocateIDAtOrAbove(ResourceId desired_id) = 0; 33 virtual ResourceId AllocateIDAtOrAbove(ResourceId desired_id) = 0;
35 34
36 // Marks an id as used. Returns false if id was already used. 35 // Marks an id as used. Returns false if id was already used.
37 virtual bool MarkAsUsed(ResourceId id) = 0; 36 virtual bool MarkAsUsed(ResourceId id) = 0;
38 37
39 // Frees a resource ID. 38 // Frees a resource ID.
40 virtual void FreeID(ResourceId id) = 0; 39 virtual void FreeID(ResourceId id) = 0;
41 40
42 // Checks whether or not a resource ID is in use. 41 // Checks whether or not a resource ID is in use.
43 virtual bool InUse(ResourceId id) const = 0; 42 virtual bool InUse(ResourceId id) const = 0;
44 }; 43 };
45 44
46 // A class to manage the allocation of resource IDs. 45 // A class to manage the allocation of resource IDs.
47 class GPU_EXPORT IdAllocator : public IdAllocatorInterface { 46 class IdAllocator : public IdAllocatorInterface {
48 public: 47 public:
49 IdAllocator(); 48 IdAllocator();
50 virtual ~IdAllocator(); 49 virtual ~IdAllocator();
51 50
52 // Implement IdAllocatorInterface. 51 // Implement IdAllocatorInterface.
53 virtual ResourceId AllocateID() OVERRIDE; 52 virtual ResourceId AllocateID() OVERRIDE;
54 virtual ResourceId AllocateIDAtOrAbove(ResourceId desired_id) OVERRIDE; 53 virtual ResourceId AllocateIDAtOrAbove(ResourceId desired_id) OVERRIDE;
55 virtual bool MarkAsUsed(ResourceId id) OVERRIDE; 54 virtual bool MarkAsUsed(ResourceId id) OVERRIDE;
56 virtual void FreeID(ResourceId id) OVERRIDE; 55 virtual void FreeID(ResourceId id) OVERRIDE;
57 virtual bool InUse(ResourceId id) const OVERRIDE; 56 virtual bool InUse(ResourceId id) const OVERRIDE;
(...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after
90 89
91 private: 90 private:
92 ResourceId last_id_; 91 ResourceId last_id_;
93 92
94 DISALLOW_COPY_AND_ASSIGN(NonReusedIdAllocator); 93 DISALLOW_COPY_AND_ASSIGN(NonReusedIdAllocator);
95 }; 94 };
96 95
97 } // namespace gpu 96 } // namespace gpu
98 97
99 #endif // GPU_COMMAND_BUFFER_CLIENT_ID_ALLOCATOR_H_ 98 #endif // GPU_COMMAND_BUFFER_CLIENT_ID_ALLOCATOR_H_
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