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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 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 | 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 WEBKIT_GLUE_PLUGINS_PEPPER_BUFFER_H_ | 5 #ifndef WEBKIT_PLUGINS_PPAPI_PPB_BUFFER_IMPL_H_ |
| 6 #define WEBKIT_GLUE_PLUGINS_PEPPER_BUFFER_H_ | 6 #define WEBKIT_PLUGINS_PPAPI_PPB_BUFFER_IMPL_H_ |
| 7 | 7 |
| 8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
| 9 #include "base/scoped_ptr.h" | 9 #include "base/scoped_ptr.h" |
| 10 #include "webkit/glue/plugins/pepper_resource.h" | 10 #include "webkit/plugins/ppapi/resource.h" |
| 11 | 11 |
| 12 struct PPB_Buffer_Dev; | 12 struct PPB_Buffer_Dev; |
| 13 | 13 |
| 14 namespace pepper { | 14 namespace webkit { |
| 15 namespace plugins { |
| 16 namespace ppapi { |
| 15 | 17 |
| 16 class PluginInstance; | 18 class PluginInstance; |
| 17 | 19 |
| 18 class Buffer : public Resource { | 20 class PPB_Buffer_Impl : public Resource { |
| 19 public: | 21 public: |
| 20 explicit Buffer(PluginModule* module); | 22 explicit PPB_Buffer_Impl(PluginModule* module); |
| 21 virtual ~Buffer(); | 23 virtual ~PPB_Buffer_Impl(); |
| 22 | 24 |
| 23 uint32_t size() const { return size_; } | 25 uint32_t size() const { return size_; } |
| 24 unsigned char* mapped_buffer() { return mem_buffer_.get(); } | 26 unsigned char* mapped_buffer() { return mem_buffer_.get(); } |
| 25 | 27 |
| 26 // Returns true if this buffer is mapped. False means that the buffer is | 28 // Returns true if this buffer is mapped. False means that the buffer is |
| 27 // either invalid or not mapped. | 29 // either invalid or not mapped. |
| 28 bool is_mapped() const { return !!mem_buffer_.get(); } | 30 bool is_mapped() const { return !!mem_buffer_.get(); } |
| 29 | 31 |
| 30 // Returns a pointer to the interface implementing PPB_Buffer that is | 32 // Returns a pointer to the interface implementing PPB_PPB_Buffer_Impl that is |
| 31 // exposed to the plugin. | 33 // exposed to the plugin. |
| 32 static const PPB_Buffer_Dev* GetInterface(); | 34 static const PPB_Buffer_Dev* GetInterface(); |
| 33 | 35 |
| 34 // Resource overrides. | 36 // Resource overrides. |
| 35 virtual Buffer* AsBuffer(); | 37 virtual PPB_Buffer_Impl* AsPPB_Buffer_Impl(); |
| 36 | 38 |
| 37 // PPB_Buffer implementation. | 39 // PPB_PPB_Buffer_Impl implementation. |
| 38 bool Init(uint32_t size); | 40 bool Init(uint32_t size); |
| 39 void Describe(uint32_t* size_in_bytes) const; | 41 void Describe(uint32_t* size_in_bytes) const; |
| 40 void* Map(); | 42 void* Map(); |
| 41 void Unmap(); | 43 void Unmap(); |
| 42 | 44 |
| 43 // Swaps the guts of this buffer with another. | |
| 44 void Swap(Buffer* other); | |
| 45 | |
| 46 private: | 45 private: |
| 47 uint32_t size_; | 46 uint32_t size_; |
| 48 scoped_array<unsigned char> mem_buffer_; | 47 scoped_array<unsigned char> mem_buffer_; |
| 49 | 48 |
| 50 DISALLOW_COPY_AND_ASSIGN(Buffer); | 49 DISALLOW_COPY_AND_ASSIGN(PPB_Buffer_Impl); |
| 51 }; | 50 }; |
| 52 | 51 |
| 53 } // namespace pepper | 52 } // namespace ppapi |
| 53 } // namespace plugins |
| 54 } // namespace webkit |
| 54 | 55 |
| 55 #endif // WEBKIT_GLUE_PLUGINS_PEPPER_BUFFER_H_ | 56 #endif // WEBKIT_PLUGINS_PPAPI_PPB_BUFFER_IMPL_H_ |
| 56 | 57 |
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