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[email protected]32523382011-06-10 02:30:001// Copyright (c) 2011 The Chromium Authors. All rights reserved.
[email protected]43a40202010-11-12 16:25:012// 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_PPB_BUFFER_PROXY_H_
6#define PPAPI_PPB_BUFFER_PROXY_H_
7
[email protected]32523382011-06-10 02:30:008#include "base/shared_memory.h"
[email protected]859a7f32011-01-15 03:44:139#include "ppapi/c/pp_instance.h"
[email protected]43a40202010-11-12 16:25:0110#include "ppapi/proxy/interface_proxy.h"
[email protected]7f8b26b2011-08-18 15:41:0111#include "ppapi/shared_impl/resource.h"
[email protected]7ace8ad2011-08-06 03:23:5812#include "ppapi/thunk/ppb_buffer_api.h"
[email protected]43a40202010-11-12 16:25:0113
14struct PPB_Buffer_Dev;
15
[email protected]be0a84b2011-08-13 04:18:4416namespace ppapi {
[email protected]be0a84b2011-08-13 04:18:4417
[email protected]4d2efd22011-08-18 21:58:0218class HostResource;
19
[email protected]43a40202010-11-12 16:25:0120namespace proxy {
21
[email protected]4d2efd22011-08-18 21:58:0222class Buffer : public thunk::PPB_Buffer_API, public Resource {
[email protected]7ace8ad2011-08-06 03:23:5823 public:
[email protected]4d2efd22011-08-18 21:58:0224 Buffer(const HostResource& resource,
[email protected]7ace8ad2011-08-06 03:23:5825 const base::SharedMemoryHandle& shm_handle,
26 uint32_t size);
27 virtual ~Buffer();
28
[email protected]7f8b26b2011-08-18 15:41:0129 // Resource overrides.
[email protected]4d2efd22011-08-18 21:58:0230 virtual thunk::PPB_Buffer_API* AsPPB_Buffer_API() OVERRIDE;
[email protected]7ace8ad2011-08-06 03:23:5831
32 // PPB_Buffer_API implementation.
33 virtual PP_Bool Describe(uint32_t* size_in_bytes) OVERRIDE;
34 virtual PP_Bool IsMapped() OVERRIDE;
35 virtual void* Map() OVERRIDE;
36 virtual void Unmap() OVERRIDE;
37
38 private:
39 base::SharedMemory shm_;
40 uint32_t size_;
41 void* mapped_data_;
42 int map_count_;
43
44 DISALLOW_COPY_AND_ASSIGN(Buffer);
45};
46
[email protected]43a40202010-11-12 16:25:0147class PPB_Buffer_Proxy : public InterfaceProxy {
48 public:
[email protected]5c966022011-09-13 18:09:3749 PPB_Buffer_Proxy(Dispatcher* dispatcher);
[email protected]43a40202010-11-12 16:25:0150 virtual ~PPB_Buffer_Proxy();
51
[email protected]9815108e2011-05-27 21:50:2852 static PP_Resource CreateProxyResource(PP_Instance instance,
53 uint32_t size);
[email protected]4d2efd22011-08-18 21:58:0254 static PP_Resource AddProxyResource(const HostResource& resource,
[email protected]0fa46e82011-08-09 07:31:4955 base::SharedMemoryHandle shm_handle,
56 uint32_t size);
[email protected]9815108e2011-05-27 21:50:2857
[email protected]43a40202010-11-12 16:25:0158 // InterfaceProxy implementation.
[email protected]a95986a82010-12-24 06:19:2859 virtual bool OnMessageReceived(const IPC::Message& msg);
[email protected]43a40202010-11-12 16:25:0160
[email protected]5c966022011-09-13 18:09:3761 static const InterfaceID kInterfaceID = INTERFACE_ID_PPB_BUFFER;
62
[email protected]43a40202010-11-12 16:25:0163 private:
64 // Message handlers.
[email protected]859a7f32011-01-15 03:44:1365 void OnMsgCreate(PP_Instance instance,
[email protected]867b76d632010-12-02 00:09:0766 uint32_t size,
[email protected]4d2efd22011-08-18 21:58:0267 HostResource* result_resource,
[email protected]32523382011-06-10 02:30:0068 base::SharedMemoryHandle* result_shm_handle);
[email protected]43a40202010-11-12 16:25:0169};
70
71} // namespace proxy
[email protected]4d2efd22011-08-18 21:58:0272} // namespace ppapi
[email protected]43a40202010-11-12 16:25:0173
74#endif // PPAPI_PPB_BUFFER_PROXY_H_