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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 CC_RESOURCES_SHARED_BITMAP_H_ | 5 #ifndef CC_RESOURCES_SHARED_BITMAP_H_ |
6 #define CC_RESOURCES_SHARED_BITMAP_H_ | 6 #define CC_RESOURCES_SHARED_BITMAP_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
12 #include "base/trace_event/memory_allocator_dump.h" | 12 #include "base/trace_event/memory_allocator_dump.h" |
13 #include "cc/cc_export.h" | 13 #include "cc/cc_export.h" |
14 #include "gpu/command_buffer/common/mailbox.h" | 14 #include "gpu/command_buffer/common/mailbox.h" |
15 #include "ui/gfx/geometry/size.h" | 15 #include "ui/gfx/geometry/size.h" |
16 | 16 |
| 17 namespace base { |
| 18 |
| 19 class SharedMemory; |
| 20 |
| 21 } // namespace base |
| 22 |
17 namespace cc { | 23 namespace cc { |
18 typedef gpu::Mailbox SharedBitmapId; | 24 typedef gpu::Mailbox SharedBitmapId; |
19 | 25 |
20 CC_EXPORT base::trace_event::MemoryAllocatorDumpGuid | 26 CC_EXPORT base::trace_event::MemoryAllocatorDumpGuid |
21 GetSharedBitmapGUIDForTracing(const SharedBitmapId& bitmap_id); | 27 GetSharedBitmapGUIDForTracing(const SharedBitmapId& bitmap_id); |
22 | 28 |
23 class CC_EXPORT SharedBitmap { | 29 class CC_EXPORT SharedBitmap { |
24 public: | 30 public: |
25 SharedBitmap(uint8_t* pixels, const SharedBitmapId& id); | 31 SharedBitmap(uint8_t* pixels, const SharedBitmapId& id); |
26 | 32 |
27 virtual ~SharedBitmap(); | 33 virtual ~SharedBitmap(); |
28 | 34 |
29 uint8_t* pixels() { return pixels_; } | 35 uint8_t* pixels() { return pixels_; } |
30 | 36 |
31 const SharedBitmapId& id() { return id_; } | 37 const SharedBitmapId& id() { return id_; } |
32 | 38 |
33 // Returns true if the size is valid and false otherwise. | 39 // Returns true if the size is valid and false otherwise. |
34 static bool SizeInBytes(const gfx::Size& size, size_t* size_in_bytes); | 40 static bool SizeInBytes(const gfx::Size& size, size_t* size_in_bytes); |
35 // Dies with a CRASH() if the size can not be represented as a positive number | 41 // Dies with a CRASH() if the size can not be represented as a positive number |
36 // of bytes. | 42 // of bytes. |
37 static size_t CheckedSizeInBytes(const gfx::Size& size); | 43 static size_t CheckedSizeInBytes(const gfx::Size& size); |
38 // Returns the size in bytes but may overflow or return 0. Only do this for | 44 // Returns the size in bytes but may overflow or return 0. Only do this for |
39 // sizes that have already been checked. | 45 // sizes that have already been checked. |
40 static size_t UncheckedSizeInBytes(const gfx::Size& size); | 46 static size_t UncheckedSizeInBytes(const gfx::Size& size); |
41 // Returns true if the size is valid and false otherwise. | 47 // Returns true if the size is valid and false otherwise. |
42 static bool VerifySizeInBytes(const gfx::Size& size); | 48 static bool VerifySizeInBytes(const gfx::Size& size); |
43 | 49 |
44 static SharedBitmapId GenerateId(); | 50 static SharedBitmapId GenerateId(); |
45 | 51 |
| 52 virtual base::SharedMemory* GetSharedMemory() const; |
| 53 |
46 private: | 54 private: |
47 uint8_t* pixels_; | 55 uint8_t* pixels_; |
48 SharedBitmapId id_; | 56 SharedBitmapId id_; |
49 | 57 |
50 DISALLOW_COPY_AND_ASSIGN(SharedBitmap); | 58 DISALLOW_COPY_AND_ASSIGN(SharedBitmap); |
51 }; | 59 }; |
52 | 60 |
53 } // namespace cc | 61 } // namespace cc |
54 | 62 |
55 #endif // CC_RESOURCES_SHARED_BITMAP_H_ | 63 #endif // CC_RESOURCES_SHARED_BITMAP_H_ |
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