Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(104)

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

Issue 9581018: GPU: Build 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
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
OLDNEW
1 // Copyright (c) 2011 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 <vector> 10 #include <vector>
11
12 #include "../../gpu_export.h"
11 #include "../common/logging.h" 13 #include "../common/logging.h"
12 #include "../common/types.h" 14 #include "../common/types.h"
13 15
14 namespace gpu { 16 namespace gpu {
15 class CommandBufferHelper; 17 class CommandBufferHelper;
16 18
17 // FencedAllocator provides a mechanism to manage allocations within a fixed 19 // FencedAllocator provides a mechanism to manage allocations within a fixed
18 // block of memory (storing the book-keeping externally). Furthermore this 20 // block of memory (storing the book-keeping externally). Furthermore this
19 // class allows to free data "pending" the passage of a command buffer token, 21 // class allows to free data "pending" the passage of a command buffer token,
20 // that is, the memory won't be reused until the command buffer has processed 22 // that is, the memory won't be reused until the command buffer has processed
21 // that token. 23 // that token.
22 // 24 //
23 // NOTE: Although this class is intended to be used in the command buffer 25 // NOTE: Although this class is intended to be used in the command buffer
24 // environment which is multi-process, this class isn't "thread safe", because 26 // environment which is multi-process, this class isn't "thread safe", because
25 // it isn't meant to be shared across modules. It is thread-compatible though 27 // it isn't meant to be shared across modules. It is thread-compatible though
26 // (see http://www.corp.google.com/eng/doc/cpp_primer.html#thread_safety). 28 // (see http://www.corp.google.com/eng/doc/cpp_primer.html#thread_safety).
27 class FencedAllocator { 29 class GPU_EXPORT FencedAllocator {
28 public: 30 public:
29 typedef unsigned int Offset; 31 typedef unsigned int Offset;
30 // Invalid offset, returned by Alloc in case of failure. 32 // Invalid offset, returned by Alloc in case of failure.
31 static const Offset kInvalidOffset = 0xffffffffU; 33 static const Offset kInvalidOffset = 0xffffffffU;
32 34
33 // Creates a FencedAllocator. Note that the size of the buffer is passed, but 35 // Creates a FencedAllocator. Note that the size of the buffer is passed, but
34 // not its base address: everything is handled as offsets into the buffer. 36 // not its base address: everything is handled as offsets into the buffer.
35 FencedAllocator(unsigned int size, 37 FencedAllocator(unsigned int size,
36 CommandBufferHelper *helper); 38 CommandBufferHelper *helper);
37 39
(...skipping 205 matching lines...) Expand 10 before | Expand all | Expand 10 after
243 245
244 private: 246 private:
245 FencedAllocator allocator_; 247 FencedAllocator allocator_;
246 void* base_; 248 void* base_;
247 DISALLOW_IMPLICIT_CONSTRUCTORS(FencedAllocatorWrapper); 249 DISALLOW_IMPLICIT_CONSTRUCTORS(FencedAllocatorWrapper);
248 }; 250 };
249 251
250 } // namespace gpu 252 } // namespace gpu
251 253
252 #endif // GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_ 254 #endif // GPU_COMMAND_BUFFER_CLIENT_FENCED_ALLOCATOR_H_
OLDNEW
« no previous file with comments | « gpu/command_buffer/client/cmd_buffer_helper.h ('k') | gpu/command_buffer/client/gles2_impl_export.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698