| /* |
| * 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" |
| |
| #if ENABLE(WEB_AUDIO) |
| |
| #include "modules/webaudio/WaveShaperNode.h" |
| |
| #include "bindings/v8/ExceptionState.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "wtf/MainThread.h" |
| |
| namespace WebCore { |
| |
| WaveShaperNode::WaveShaperNode(AudioContext* context) |
| : AudioBasicProcessorNode(context, context->sampleRate()) |
| { |
| ScriptWrappable::init(this); |
| m_processor = adoptPtr(new WaveShaperProcessor(context->sampleRate(), 1)); |
| setNodeType(NodeTypeWaveShaper); |
| |
| initialize(); |
| } |
| |
| void WaveShaperNode::setCurve(Float32Array* curve) |
| { |
| ASSERT(isMainThread()); |
| waveShaperProcessor()->setCurve(curve); |
| } |
| |
| Float32Array* WaveShaperNode::curve() |
| { |
| return waveShaperProcessor()->curve(); |
| } |
| |
| void WaveShaperNode::setOversample(const String& type, ExceptionState& es) |
| { |
| ASSERT(isMainThread()); |
| |
| // This is to synchronize with the changes made in |
| // AudioBasicProcessorNode::checkNumberOfChannelsForInput() where we can |
| // initialize() and uninitialize(). |
| AudioContext::AutoLocker contextLocker(context()); |
| |
| if (type == "none") |
| waveShaperProcessor()->setOversample(WaveShaperProcessor::OverSampleNone); |
| else if (type == "2x") |
| waveShaperProcessor()->setOversample(WaveShaperProcessor::OverSample2x); |
| else if (type == "4x") |
| waveShaperProcessor()->setOversample(WaveShaperProcessor::OverSample4x); |
| else |
| es.throwDOMException(InvalidStateError); |
| } |
| |
| String WaveShaperNode::oversample() const |
| { |
| switch (const_cast<WaveShaperNode*>(this)->waveShaperProcessor()->oversample()) { |
| case WaveShaperProcessor::OverSampleNone: |
| return "none"; |
| case WaveShaperProcessor::OverSample2x: |
| return "2x"; |
| case WaveShaperProcessor::OverSample4x: |
| return "4x"; |
| default: |
| ASSERT_NOT_REACHED(); |
| return "none"; |
| } |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEB_AUDIO) |