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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 ppapi { |
| 15 | 16 |
| 16 class PluginInstance; | 17 class PluginInstance; |
| 17 | 18 |
| 18 class Buffer : public Resource { | 19 class PPB_Buffer_Impl : public Resource { |
| 19 public: | 20 public: |
| 20 explicit Buffer(PluginModule* module); | 21 explicit PPB_Buffer_Impl(PluginModule* module); |
| 21 virtual ~Buffer(); | 22 virtual ~PPB_Buffer_Impl(); |
| 22 | 23 |
| 23 uint32_t size() const { return size_; } | 24 uint32_t size() const { return size_; } |
| 24 unsigned char* mapped_buffer() { return mem_buffer_.get(); } | 25 unsigned char* mapped_buffer() { return mem_buffer_.get(); } |
| 25 | 26 |
| 26 // Returns true if this buffer is mapped. False means that the buffer is | 27 // Returns true if this buffer is mapped. False means that the buffer is |
| 27 // either invalid or not mapped. | 28 // either invalid or not mapped. |
| 28 bool is_mapped() const { return !!mem_buffer_.get(); } | 29 bool is_mapped() const { return !!mem_buffer_.get(); } |
| 29 | 30 |
| 30 // Returns a pointer to the interface implementing PPB_Buffer that is | 31 // Returns a pointer to the interface implementing PPB_PPB_Buffer_Impl that is |
| 31 // exposed to the plugin. | 32 // exposed to the plugin. |
| 32 static const PPB_Buffer_Dev* GetInterface(); | 33 static const PPB_Buffer_Dev* GetInterface(); |
| 33 | 34 |
| 34 // Resource overrides. | 35 // Resource overrides. |
| 35 virtual Buffer* AsBuffer(); | 36 virtual PPB_Buffer_Impl* AsPPB_Buffer_Impl(); |
| 36 | 37 |
| 37 // PPB_Buffer implementation. | 38 // PPB_PPB_Buffer_Impl implementation. |
| 38 bool Init(uint32_t size); | 39 bool Init(uint32_t size); |
| 39 void Describe(uint32_t* size_in_bytes) const; | 40 void Describe(uint32_t* size_in_bytes) const; |
| 40 void* Map(); | 41 void* Map(); |
| 41 void Unmap(); | 42 void Unmap(); |
| 42 | 43 |
| 43 // Swaps the guts of this buffer with another. | |
| 44 void Swap(Buffer* other); | |
| 45 | |
| 46 private: | 44 private: |
| 47 uint32_t size_; | 45 uint32_t size_; |
| 48 scoped_array<unsigned char> mem_buffer_; | 46 scoped_array<unsigned char> mem_buffer_; |
| 49 | 47 |
| 50 DISALLOW_COPY_AND_ASSIGN(Buffer); | 48 DISALLOW_COPY_AND_ASSIGN(PPB_Buffer_Impl); |
| 51 }; | 49 }; |
| 52 | 50 |
| 53 } // namespace pepper | 51 } // namespace ppapi |
| 52 } // namespace webkit |
| 54 | 53 |
| 55 #endif // WEBKIT_GLUE_PLUGINS_PEPPER_BUFFER_H_ | 54 #endif // WEBKIT_PLUGINS_PPAPI_PPB_BUFFER_IMPL_H_ |
| 56 | 55 |
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