OLD | NEW |
| (Empty) |
1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef WEBKIT_GLUE_PLUGINS_PEPPER_BUFFER_H_ | |
6 #define WEBKIT_GLUE_PLUGINS_PEPPER_BUFFER_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "base/scoped_ptr.h" | |
10 #include "webkit/glue/plugins/pepper_resource.h" | |
11 | |
12 struct PPB_Buffer_Dev; | |
13 | |
14 namespace pepper { | |
15 | |
16 class PluginInstance; | |
17 | |
18 class Buffer : public Resource { | |
19 public: | |
20 explicit Buffer(PluginModule* module); | |
21 virtual ~Buffer(); | |
22 | |
23 uint32_t size() const { return size_; } | |
24 unsigned char* mapped_buffer() { return mem_buffer_.get(); } | |
25 | |
26 // Returns true if this buffer is mapped. False means that the buffer is | |
27 // either invalid or not mapped. | |
28 bool is_mapped() const { return !!mem_buffer_.get(); } | |
29 | |
30 // Returns a pointer to the interface implementing PPB_Buffer that is | |
31 // exposed to the plugin. | |
32 static const PPB_Buffer_Dev* GetInterface(); | |
33 | |
34 // Resource overrides. | |
35 virtual Buffer* AsBuffer(); | |
36 | |
37 // PPB_Buffer implementation. | |
38 bool Init(uint32_t size); | |
39 void Describe(uint32_t* size_in_bytes) const; | |
40 void* Map(); | |
41 void Unmap(); | |
42 | |
43 // Swaps the guts of this buffer with another. | |
44 void Swap(Buffer* other); | |
45 | |
46 private: | |
47 uint32_t size_; | |
48 scoped_array<unsigned char> mem_buffer_; | |
49 | |
50 DISALLOW_COPY_AND_ASSIGN(Buffer); | |
51 }; | |
52 | |
53 } // namespace pepper | |
54 | |
55 #endif // WEBKIT_GLUE_PLUGINS_PEPPER_BUFFER_H_ | |
56 | |
OLD | NEW |