From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- dom/media/webaudio/blink/Reverb.h | 80 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 dom/media/webaudio/blink/Reverb.h (limited to 'dom/media/webaudio/blink/Reverb.h') diff --git a/dom/media/webaudio/blink/Reverb.h b/dom/media/webaudio/blink/Reverb.h new file mode 100644 index 0000000000..16459532a9 --- /dev/null +++ b/dom/media/webaudio/blink/Reverb.h @@ -0,0 +1,80 @@ +/* + * 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. + * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY APPLE 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 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 Reverb_h +#define Reverb_h + +#include "ReverbConvolver.h" +#include "nsTArray.h" +#include "AudioBlock.h" +#include "mozilla/MemoryReporting.h" +#include "mozilla/UniquePtr.h" + +namespace WebCore { + +using mozilla::UniquePtr; + +// Multi-channel convolution reverb with channel matrixing - one or more +// ReverbConvolver objects are used internally. + +class Reverb { + public: + enum { MaxFrameSize = 256 }; + + // renderSliceSize is a rendering hint, so the FFTs can be optimized to not + // all occur at the same time (very bad when rendering on a real-time thread). + // aAllocation failure is to be checked by the caller. If false, internal + // memory could not be allocated, and this Reverb instance is not to be + // used. + Reverb(const mozilla::AudioChunk& impulseResponseBuffer, size_t maxFFTSize, + bool useBackgroundThreads, bool normalize, float sampleRate, + bool* aAllocationFailure); + + void process(const mozilla::AudioBlock* sourceBus, + mozilla::AudioBlock* destinationBus); + + size_t impulseResponseLength() const { return m_impulseResponseLength; } + + size_t sizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const; + + private: + bool initialize(const nsTArray& impulseResponseBuffer, + size_t impulseResponseBufferLength, size_t maxFFTSize, + bool useBackgroundThreads); + + size_t m_impulseResponseLength; + + nsTArray > m_convolvers; + + // For "True" stereo processing + mozilla::AudioBlock m_tempBuffer; +}; + +} // namespace WebCore + +#endif // Reverb_h -- cgit v1.2.3