15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch#ifndef CONTENT_RENDERER_PEPPER_PPB_BUFFER_IMPL_H_ 6bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch#define CONTENT_RENDERER_PEPPER_PPB_BUFFER_IMPL_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/memory/ref_counted.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/scoped_ptr.h" 119ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include "base/memory/shared_memory.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/resource.h" 139ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include "ppapi/thunk/ppb_buffer_api.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1558e6fbe4ee35d65e14b626c557d37565bf8ad179Ben Murdochnamespace content { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 17ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdochclass PPB_Buffer_Impl : public ppapi::Resource, 18ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch public ppapi::thunk::PPB_Buffer_API { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static PP_Resource Create(PP_Instance instance, uint32_t size); 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static scoped_refptr<PPB_Buffer_Impl> CreateResource(PP_Instance instance, 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) uint32_t size); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual PPB_Buffer_Impl* AsPPB_Buffer_Impl(); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SharedMemory* shared_memory() const { return shared_memory_.get(); } 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t size() const { return size_; } 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Resource overrides. 30ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch virtual ppapi::thunk::PPB_Buffer_API* AsPPB_Buffer_API() OVERRIDE; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // PPB_Buffer_API implementation. 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual PP_Bool Describe(uint32_t* size_in_bytes) OVERRIDE; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual PP_Bool IsMapped() OVERRIDE; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void* Map() OVERRIDE; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void Unmap() OVERRIDE; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Trusted. 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual int32_t GetSharedMemory(int* handle) OVERRIDE; 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 42bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch virtual ~PPB_Buffer_Impl(); 43bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit PPB_Buffer_Impl(PP_Instance instance); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool Init(uint32_t size); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<base::SharedMemory> shared_memory_; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t size_; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int map_count_; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(PPB_Buffer_Impl); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Ensures that the given buffer is mapped, and returns it to its previous 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// mapped state in the destructor. 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class BufferAutoMapper { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 58ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch explicit BufferAutoMapper(ppapi::thunk::PPB_Buffer_API* api); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~BufferAutoMapper(); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Will be NULL on failure to map. 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* data() { return data_; } 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t size() { return size_; } 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 66ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch ppapi::thunk::PPB_Buffer_API* api_; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool needs_unmap_; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* data_; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t size_; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(BufferAutoMapper); 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7658e6fbe4ee35d65e14b626c557d37565bf8ad179Ben Murdoch} // namespace content 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 78bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch#endif // CONTENT_RENDERER_PEPPER_PPB_BUFFER_IMPL_H_ 79