| /* |
| * Copyright (C) 2012, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| */ |
| |
| #include <algorithm> |
| #include "third_party/blink/renderer/modules/webaudio/audio_node_output.h" |
| #include "third_party/blink/renderer/modules/webaudio/audio_summing_junction.h" |
| |
| namespace blink { |
| |
| AudioSummingJunction::AudioSummingJunction(DeferredTaskHandler& handler) |
| : deferred_task_handler_(&handler), rendering_state_need_updating_(false) {} |
| |
| AudioSummingJunction::~AudioSummingJunction() { |
| GetDeferredTaskHandler().AssertGraphOwner(); |
| GetDeferredTaskHandler().RemoveMarkedSummingJunction(this); |
| } |
| |
| void AudioSummingJunction::ChangedOutputs() { |
| GetDeferredTaskHandler().AssertGraphOwner(); |
| if (!rendering_state_need_updating_) { |
| GetDeferredTaskHandler().MarkSummingJunctionDirty(this); |
| rendering_state_need_updating_ = true; |
| } |
| } |
| |
| void AudioSummingJunction::UpdateRenderingState() { |
| DCHECK(GetDeferredTaskHandler().IsAudioThread()); |
| GetDeferredTaskHandler().AssertGraphOwner(); |
| if (rendering_state_need_updating_) { |
| // Copy from m_outputs to m_renderingOutputs. |
| rendering_outputs_.resize(outputs_.size()); |
| unsigned j = 0; |
| for (AudioNodeOutput* output : outputs_) { |
| rendering_outputs_[j++] = output; |
| output->UpdateRenderingState(); |
| } |
| |
| DidUpdate(); |
| |
| rendering_state_need_updating_ = false; |
| } |
| } |
| |
| } // namespace blink |