| OLD | NEW |
|---|
| (Empty) |
| 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 #include "ppapi/shared_impl/ppb_audio_shared.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 | |
| 9 namespace ppapi { | |
| 10 | |
| 11 PPB_Audio_Shared::PPB_Audio_Shared() | |
| 12 : playing_(false), | |
| 13 shared_memory_size_(0), | |
| 14 callback_(NULL), | |
| 15 user_data_(NULL) { | |
| 16 } | |
| 17 | |
| 18 PPB_Audio_Shared::~PPB_Audio_Shared() { | |
| 19 // Closing the socket causes the thread to exit - wait for it. | |
| 20 if (socket_.get()) | |
| 21 socket_->Close(); | |
| 22 if (audio_thread_.get()) { | |
| 23 audio_thread_->Join(); | |
| 24 audio_thread_.reset(); | |
| 25 } | |
| 26 } | |
| 27 | |
| 28 void PPB_Audio_Shared::SetCallback(PPB_Audio_Callback callback, | |
| 29 void* user_data) { | |
| 30 callback_ = callback; | |
| 31 user_data_ = user_data; | |
| 32 } | |
| 33 | |
| 34 void PPB_Audio_Shared::SetStartPlaybackState() { | |
| 35 DCHECK(!playing_); | |
| 36 DCHECK(!audio_thread_.get()); | |
| 37 | |
| 38 // If the socket doesn't exist, that means that the plugin has started before | |
| 39 // the browser has had a chance to create all the shared memory info and | |
| 40 // notify us. This is a common case. In this case, we just set the playing_ | |
| 41 // flag and the playback will automatically start when that data is available | |
| 42 // in SetStreamInfo. | |
| 43 if (callback_ && socket_.get()) | |
| 44 StartThread(); | |
| 45 playing_ = true; | |
| 46 } | |
| 47 | |
| 48 void PPB_Audio_Shared::SetStopPlaybackState() { | |
| 49 DCHECK(playing_); | |
| 50 | |
| 51 if (audio_thread_.get()) { | |
| 52 audio_thread_->Join(); | |
| 53 audio_thread_.reset(); | |
| 54 } | |
| 55 playing_ = false; | |
| 56 } | |
| 57 | |
| 58 void PPB_Audio_Shared::SetStreamInfo( | |
| 59 base::SharedMemoryHandle shared_memory_handle, | |
| 60 size_t shared_memory_size, | |
| 61 base::SyncSocket::Handle socket_handle) { | |
| 62 socket_.reset(new base::SyncSocket(socket_handle)); | |
| 63 shared_memory_.reset(new base::SharedMemory(shared_memory_handle, false)); | |
| 64 shared_memory_size_ = shared_memory_size; | |
| 65 | |
| 66 if (callback_) { | |
| 67 shared_memory_->Map(shared_memory_size_); | |
| 68 | |
| 69 // In common case StartPlayback() was called before StreamCreated(). | |
| 70 if (playing_) | |
| 71 StartThread(); | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 void PPB_Audio_Shared::StartThread() { | |
| 76 DCHECK(callback_); | |
| 77 DCHECK(!audio_thread_.get()); | |
| 78 audio_thread_.reset(new base::DelegateSimpleThread( | |
| 79 this, "plugin_audio_thread")); | |
| 80 audio_thread_->Start(); | |
| 81 } | |
| 82 | |
| 83 void PPB_Audio_Shared::Run() { | |
| 84 int pending_data; | |
| 85 void* buffer = shared_memory_->memory(); | |
| 86 | |
| 87 while (sizeof(pending_data) == | |
| 88 socket_->Receive(&pending_data, sizeof(pending_data)) && | |
| 89 pending_data >= 0) { | |
| 90 callback_(buffer, shared_memory_size_, user_data_); | |
| 91 } | |
| 92 } | |
| 93 | |
| 94 } // namespace ppapi | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 8824015:
Revert 113290 - Rename the shared_impl resource files to give them more regular names. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/