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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 <stddef.h> |
10 #include <stdint.h> | 11 #include <stdint.h> |
11 | 12 |
12 #include <vector> | 13 #include <vector> |
13 | 14 |
14 #include "base/bind.h" | 15 #include "base/bind.h" |
15 #include "base/logging.h" | 16 #include "base/logging.h" |
16 #include "base/macros.h" | 17 #include "base/macros.h" |
17 #include "gpu/gpu_export.h" | 18 #include "gpu/gpu_export.h" |
18 | 19 |
19 namespace gpu { | 20 namespace gpu { |
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61 // Parameters: | 62 // Parameters: |
62 // offset: the offset of the memory block to free. | 63 // offset: the offset of the memory block to free. |
63 void Free(Offset offset); | 64 void Free(Offset offset); |
64 | 65 |
65 // Frees a block of memory, pending the passage of a token. That memory won't | 66 // Frees a block of memory, pending the passage of a token. That memory won't |
66 // be re-allocated until the token has passed through the command stream. | 67 // be re-allocated until the token has passed through the command stream. |
67 // | 68 // |
68 // Parameters: | 69 // Parameters: |
69 // offset: the offset of the memory block to free. | 70 // offset: the offset of the memory block to free. |
70 // token: the token value to wait for before re-using the memory. | 71 // token: the token value to wait for before re-using the memory. |
71 void FreePendingToken(Offset offset, int32 token); | 72 void FreePendingToken(Offset offset, int32_t token); |
72 | 73 |
73 // Frees any blocks pending a token for which the token has been read. | 74 // Frees any blocks pending a token for which the token has been read. |
74 void FreeUnused(); | 75 void FreeUnused(); |
75 | 76 |
76 // Gets the size of the largest free block that is available without waiting. | 77 // Gets the size of the largest free block that is available without waiting. |
77 unsigned int GetLargestFreeSize(); | 78 unsigned int GetLargestFreeSize(); |
78 | 79 |
79 // Gets the size of the largest free block that can be allocated if the | 80 // Gets the size of the largest free block that can be allocated if the |
80 // caller can wait. Allocating a block of this size will succeed, but may | 81 // caller can wait. Allocating a block of this size will succeed, but may |
81 // block. | 82 // block. |
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197 DCHECK(pointer); | 198 DCHECK(pointer); |
198 allocator_.Free(GetOffset(pointer)); | 199 allocator_.Free(GetOffset(pointer)); |
199 } | 200 } |
200 | 201 |
201 // Frees a block of memory, pending the passage of a token. That memory won't | 202 // Frees a block of memory, pending the passage of a token. That memory won't |
202 // be re-allocated until the token has passed through the command stream. | 203 // be re-allocated until the token has passed through the command stream. |
203 // | 204 // |
204 // Parameters: | 205 // Parameters: |
205 // pointer: the pointer to the memory block to free. | 206 // pointer: the pointer to the memory block to free. |
206 // token: the token value to wait for before re-using the memory. | 207 // token: the token value to wait for before re-using the memory. |
207 void FreePendingToken(void *pointer, int32 token) { | 208 void FreePendingToken(void* pointer, int32_t token) { |
208 DCHECK(pointer); | 209 DCHECK(pointer); |
209 allocator_.FreePendingToken(GetOffset(pointer), token); | 210 allocator_.FreePendingToken(GetOffset(pointer), token); |
210 } | 211 } |
211 | 212 |
212 // Frees any blocks pending a token for which the token has been read. | 213 // Frees any blocks pending a token for which the token has been read. |
213 void FreeUnused() { | 214 void FreeUnused() { |
214 allocator_.FreeUnused(); | 215 allocator_.FreeUnused(); |
215 } | 216 } |
216 | 217 |
217 // Gets a pointer to a memory block given the base memory and the offset. | 218 // Gets a pointer to a memory block given the base memory and the offset. |
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261 | 262 |
262 private: | 263 private: |
263 FencedAllocator allocator_; | 264 FencedAllocator allocator_; |
264 void* base_; | 265 void* base_; |
265 DISALLOW_IMPLICIT_CONSTRUCTORS(FencedAllocatorWrapper); | 266 DISALLOW_IMPLICIT_CONSTRUCTORS(FencedAllocatorWrapper); |
266 }; | 267 }; |
267 | 268 |
268 } // namespace gpu | 269 } // namespace gpu |
269 | 270 |
270 #endif // GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_ | 271 #endif // GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_ |
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