| /* |
| * Copyright (C) 2010, 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. |
| */ |
| |
| #ifndef ConvolverNode_h |
| #define ConvolverNode_h |
| |
| #include "base/gtest_prod_util.h" |
| #include "modules/ModulesExport.h" |
| #include "modules/webaudio/AudioNode.h" |
| #include "wtf/RefPtr.h" |
| #include "wtf/ThreadingPrimitives.h" |
| #include <memory> |
| |
| namespace blink { |
| |
| class AudioBuffer; |
| class ConvolverOptions; |
| class ExceptionState; |
| class Reverb; |
| |
| class MODULES_EXPORT ConvolverHandler final : public AudioHandler { |
| public: |
| static PassRefPtr<ConvolverHandler> create(AudioNode&, float sampleRate); |
| ~ConvolverHandler() override; |
| |
| // AudioHandler |
| void process(size_t framesToProcess) override; |
| |
| // Impulse responses |
| void setBuffer(AudioBuffer*, ExceptionState&); |
| AudioBuffer* buffer(); |
| |
| bool normalize() const { return m_normalize; } |
| void setNormalize(bool normalize) { m_normalize = normalize; } |
| |
| private: |
| ConvolverHandler(AudioNode&, float sampleRate); |
| double tailTime() const override; |
| double latencyTime() const override; |
| |
| std::unique_ptr<Reverb> m_reverb; |
| // This Persistent doesn't make a reference cycle including the owner |
| // ConvolverNode. |
| Persistent<AudioBuffer> m_buffer; |
| |
| // This synchronizes dynamic changes to the convolution impulse response with |
| // process(). |
| mutable Mutex m_processLock; |
| |
| // Normalize the impulse response or not. Must default to true. |
| bool m_normalize; |
| |
| FRIEND_TEST_ALL_PREFIXES(ConvolverNodeTest, ReverbLifetime); |
| }; |
| |
| class MODULES_EXPORT ConvolverNode final : public AudioNode { |
| DEFINE_WRAPPERTYPEINFO(); |
| |
| public: |
| static ConvolverNode* create(BaseAudioContext&, ExceptionState&); |
| static ConvolverNode* create(BaseAudioContext*, |
| const ConvolverOptions&, |
| ExceptionState&); |
| |
| AudioBuffer* buffer() const; |
| void setBuffer(AudioBuffer*, ExceptionState&); |
| bool normalize() const; |
| void setNormalize(bool); |
| |
| private: |
| ConvolverNode(BaseAudioContext&); |
| ConvolverHandler& convolverHandler() const; |
| |
| FRIEND_TEST_ALL_PREFIXES(ConvolverNodeTest, ReverbLifetime); |
| }; |
| |
| } // namespace blink |
| |
| #endif // ConvolverNode_h |