| /* |
| * Copyright (C) 2011, 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 "config.h" |
| #include "WaveShaperNode.h" |
| |
| #if ENABLE(WEB_AUDIO) |
| |
| #include "AudioContext.h" |
| #include <wtf/MainThread.h> |
| |
| namespace WebCore { |
| |
| WaveShaperNode::WaveShaperNode(AudioContext& context) |
| : AudioBasicProcessorNode(context, context.sampleRate()) |
| { |
| m_processor = std::make_unique<WaveShaperProcessor>(context.sampleRate(), 1); |
| setNodeType(NodeTypeWaveShaper); |
| |
| initialize(); |
| } |
| |
| void WaveShaperNode::setCurve(Float32Array& curve) |
| { |
| ASSERT(isMainThread()); |
| waveShaperProcessor()->setCurve(&curve); |
| } |
| |
| Float32Array* WaveShaperNode::curve() |
| { |
| return waveShaperProcessor()->curve(); |
| } |
| |
| static inline WaveShaperProcessor::OverSampleType processorType(WaveShaperNode::OverSampleType type) |
| { |
| switch (type) { |
| case WaveShaperNode::OverSampleType::None: |
| return WaveShaperProcessor::OverSampleNone; |
| case WaveShaperNode::OverSampleType::_2x: |
| return WaveShaperProcessor::OverSample2x; |
| case WaveShaperNode::OverSampleType::_4x: |
| return WaveShaperProcessor::OverSample4x; |
| } |
| ASSERT_NOT_REACHED(); |
| return WaveShaperProcessor::OverSampleNone; |
| } |
| |
| void WaveShaperNode::setOversample(OverSampleType type) |
| { |
| ASSERT(isMainThread()); |
| |
| // Synchronize with any graph changes or changes to channel configuration. |
| AudioContext::AutoLocker contextLocker(context()); |
| waveShaperProcessor()->setOversample(processorType(type)); |
| } |
| |
| auto WaveShaperNode::oversample() const -> OverSampleType |
| { |
| switch (const_cast<WaveShaperNode*>(this)->waveShaperProcessor()->oversample()) { |
| case WaveShaperProcessor::OverSampleNone: |
| return OverSampleType::None; |
| case WaveShaperProcessor::OverSample2x: |
| return OverSampleType::_2x; |
| case WaveShaperProcessor::OverSample4x: |
| return OverSampleType::_4x; |
| } |
| ASSERT_NOT_REACHED(); |
| return OverSampleType::None; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEB_AUDIO) |