зеркало из https://github.com/mozilla/pjs.git
234 строки
5.5 KiB
C++
234 строки
5.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set sw=4 ts=8 et tw=80 : */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Audio IPC
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Doug Turner <dougt@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "mozilla/dom/AudioParent.h"
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#include "nsThreadUtils.h"
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// C++ file contents
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namespace mozilla {
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namespace dom {
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class AudioWriteEvent : public nsRunnable
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{
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public:
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AudioWriteEvent(nsAudioStream* owner, nsCString data, PRUint32 count)
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{
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mOwner = owner;
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mData = data;
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mCount = count;
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}
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NS_IMETHOD Run()
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{
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mOwner->Write(mData.get(), mCount, true);
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return NS_OK;
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}
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private:
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nsRefPtr<nsAudioStream> mOwner;
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nsCString mData;
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PRUint32 mCount;
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};
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class AudioPauseEvent : public nsRunnable
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{
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public:
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AudioPauseEvent(nsAudioStream* owner, PRBool aPause)
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{
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mOwner = owner;
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mPause = aPause;
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}
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NS_IMETHOD Run()
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{
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if (mPause)
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mOwner->Pause();
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else
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mOwner->Resume();
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return NS_OK;
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}
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private:
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nsRefPtr<nsAudioStream> mOwner;
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PRBool mPause;
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};
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class AudioDrainDoneEvent : public nsRunnable
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{
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public:
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AudioDrainDoneEvent(AudioParent* owner)
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{
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mOwner = owner;
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}
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NS_IMETHOD Run()
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{
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mOwner->SendDrainDone();
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return NS_OK;
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}
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private:
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nsRefPtr<AudioParent> mOwner;
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};
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class AudioDrainEvent : public nsRunnable
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{
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public:
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AudioDrainEvent(AudioParent* parent, nsAudioStream* owner)
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{
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mParent = parent;
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mOwner = owner;
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}
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NS_IMETHOD Run()
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{
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mOwner->Drain();
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nsCOMPtr<nsIRunnable> event = new AudioDrainDoneEvent(mParent);
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NS_DispatchToMainThread(event);
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return NS_OK;
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}
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private:
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nsRefPtr<nsAudioStream> mOwner;
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nsRefPtr<AudioParent> mParent;
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};
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NS_IMPL_THREADSAFE_ISUPPORTS1(AudioParent, nsITimerCallback)
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nsresult
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AudioParent::Notify(nsITimer* timer)
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{
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if (!mIPCOpen || !mStream) {
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timer->Cancel();
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return NS_ERROR_FAILURE;
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}
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PRInt64 offset = mStream->GetSampleOffset();
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SendSampleOffsetUpdate(offset, PR_IntervalNow());
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return NS_OK;
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}
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bool
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AudioParent::RecvWrite(
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const nsCString& data,
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const PRUint32& count)
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{
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nsCOMPtr<nsIRunnable> event = new AudioWriteEvent(mStream, data, count);
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nsCOMPtr<nsIThread> thread = mStream->GetThread();
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thread->Dispatch(event, nsIEventTarget::DISPATCH_NORMAL);
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return true;
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}
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bool
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AudioParent::RecvSetVolume(const float& aVolume)
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{
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if (mStream)
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mStream->SetVolume(aVolume);
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return true;
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}
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bool
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AudioParent::RecvDrain()
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{
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nsCOMPtr<nsIRunnable> event = new AudioDrainEvent(this, mStream);
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nsCOMPtr<nsIThread> thread = mStream->GetThread();
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thread->Dispatch(event, nsIEventTarget::DISPATCH_NORMAL);
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return true;
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}
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bool
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AudioParent::RecvPause()
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{
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nsCOMPtr<nsIRunnable> event = new AudioPauseEvent(mStream, PR_TRUE);
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nsCOMPtr<nsIThread> thread = mStream->GetThread();
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thread->Dispatch(event, nsIEventTarget::DISPATCH_NORMAL);
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return true;
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}
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bool
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AudioParent::RecvResume()
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{
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nsCOMPtr<nsIRunnable> event = new AudioPauseEvent(mStream, PR_FALSE);
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nsCOMPtr<nsIThread> thread = mStream->GetThread();
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thread->Dispatch(event, nsIEventTarget::DISPATCH_NORMAL);
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return true;
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}
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bool
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AudioParent::Recv__delete__()
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{
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if (mStream) {
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mStream->Shutdown();
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mStream = nsnull;
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}
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if (mTimer) {
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mTimer->Cancel();
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mTimer = nsnull;
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}
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return true;
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}
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AudioParent::AudioParent(PRInt32 aNumChannels, PRInt32 aRate, PRInt32 aFormat)
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: mIPCOpen(PR_TRUE)
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{
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mStream = nsAudioStream::AllocateStream();
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if (mStream)
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mStream->Init(aNumChannels,
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aRate,
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(nsAudioStream::SampleFormat) aFormat);
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if (!mStream)
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return;
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mTimer = do_CreateInstance("@mozilla.org/timer;1");
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mTimer->InitWithCallback(this, 1000, nsITimer::TYPE_REPEATING_SLACK);
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}
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AudioParent::~AudioParent()
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{
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}
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void
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AudioParent::ActorDestroy(ActorDestroyReason aWhy)
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{
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mIPCOpen = PR_FALSE;
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}
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} // namespace dom
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} // namespace mozilla
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