1 // Copyright (c) 2011 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 PPAPI_CPP_DEV_BUFFER_DEV_H_ 6 #define PPAPI_CPP_DEV_BUFFER_DEV_H_ 7 8 #include "ppapi/cpp/resource.h" 9 10 namespace pp { 11 12 class InstanceHandle; 13 14 class Buffer_Dev : public Resource { 15 public: 16 // Creates an is_null() Buffer object. 17 Buffer_Dev(); 18 Buffer_Dev(const Buffer_Dev& other); 19 explicit Buffer_Dev(PP_Resource resource); 20 21 // Creates & Maps a new Buffer in the browser with the given size. The 22 // resulting object will be is_null() if either Create() or Map() fails. 23 Buffer_Dev(const InstanceHandle& instance, uint32_t size); 24 25 // Constructor used when the buffer resource already has a reference count 26 // assigned. No additional reference is taken. 27 Buffer_Dev(PassRef, PP_Resource resource); 28 29 // Unmap the underlying shared memory. 30 virtual ~Buffer_Dev(); 31 32 Buffer_Dev& operator=(const Buffer_Dev& rhs); 33 size()34 uint32_t size() const { return size_; } data()35 void* data() const { return data_; } 36 37 private: 38 void Init(); 39 40 void* data_; 41 uint32_t size_; 42 }; 43 44 } // namespace pp 45 46 #endif // PPAPI_CPP_DEV_BUFFER_DEV_H_ 47