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Side by Side Diff: gpu/command_buffer/client/fenced_allocator.h

Issue 1428003002: More const int definitions for VC++ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Use enums for the constants and avoid #if Created 5 years, 1 month ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 FencedAllocator class. 5 // This file contains the definition of the FencedAllocator class.
6 6
7 #ifndef GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_ 7 #ifndef GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_
8 #define GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_ 8 #define GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_
9 9
10 #include <stdint.h> 10 #include <stdint.h>
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26 // that token. 26 // that token.
27 // 27 //
28 // NOTE: Although this class is intended to be used in the command buffer 28 // NOTE: Although this class is intended to be used in the command buffer
29 // environment which is multi-process, this class isn't "thread safe", because 29 // environment which is multi-process, this class isn't "thread safe", because
30 // it isn't meant to be shared across modules. It is thread-compatible though 30 // it isn't meant to be shared across modules. It is thread-compatible though
31 // (see http://www.corp.google.com/eng/doc/cpp_primer.html#thread_safety). 31 // (see http://www.corp.google.com/eng/doc/cpp_primer.html#thread_safety).
32 class GPU_EXPORT FencedAllocator { 32 class GPU_EXPORT FencedAllocator {
33 public: 33 public:
34 typedef unsigned int Offset; 34 typedef unsigned int Offset;
35 // Invalid offset, returned by Alloc in case of failure. 35 // Invalid offset, returned by Alloc in case of failure.
36 static const Offset kInvalidOffset = 0xffffffffU; 36 enum : Offset { kInvalidOffset = 0xffffffffU };
37 37
38 // Allocation alignment, must be a power of two. 38 // Allocation alignment, must be a power of two.
39 static const unsigned int kAllocAlignment = 16; 39 enum : unsigned int { kAllocAlignment = 16 };
40 40
41 // Creates a FencedAllocator. Note that the size of the buffer is passed, but 41 // Creates a FencedAllocator. Note that the size of the buffer is passed, but
42 // not its base address: everything is handled as offsets into the buffer. 42 // not its base address: everything is handled as offsets into the buffer.
43 FencedAllocator(unsigned int size, CommandBufferHelper* helper); 43 FencedAllocator(unsigned int size, CommandBufferHelper* helper);
44 44
45 ~FencedAllocator(); 45 ~FencedAllocator();
46 46
47 // Allocates a block of memory. If the buffer is out of directly available 47 // Allocates a block of memory. If the buffer is out of directly available
48 // memory, this function may wait until memory that was freed "pending a 48 // memory, this function may wait until memory that was freed "pending a
49 // token" can be re-used. 49 // token" can be re-used.
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261 261
262 private: 262 private:
263 FencedAllocator allocator_; 263 FencedAllocator allocator_;
264 void* base_; 264 void* base_;
265 DISALLOW_IMPLICIT_CONSTRUCTORS(FencedAllocatorWrapper); 265 DISALLOW_IMPLICIT_CONSTRUCTORS(FencedAllocatorWrapper);
266 }; 266 };
267 267
268 } // namespace gpu 268 } // namespace gpu
269 269
270 #endif // GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_ 270 #endif // GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_
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