From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- dom/media/webaudio/blink/ZeroPole.h | 63 +++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 dom/media/webaudio/blink/ZeroPole.h (limited to 'dom/media/webaudio/blink/ZeroPole.h') diff --git a/dom/media/webaudio/blink/ZeroPole.h b/dom/media/webaudio/blink/ZeroPole.h new file mode 100644 index 0000000000..07f3f04f53 --- /dev/null +++ b/dom/media/webaudio/blink/ZeroPole.h @@ -0,0 +1,63 @@ +/* + * 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. + * 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 ZeroPole_h +#define ZeroPole_h + +namespace WebCore { + +// ZeroPole is a simple filter with one zero and one pole. + +class ZeroPole { + public: + ZeroPole() : m_zero(0), m_pole(0), m_lastX(0), m_lastY(0) {} + + void process(const float* source, float* destination, int framesToProcess); + + // Reset filter state. + void reset() { + m_lastX = 0; + m_lastY = 0; + } + + void setZero(float zero) { m_zero = zero; } + void setPole(float pole) { m_pole = pole; } + + float zero() const { return m_zero; } + float pole() const { return m_pole; } + + private: + float m_zero; + float m_pole; + float m_lastX; + float m_lastY; +}; + +} // namespace WebCore + +#endif // ZeroPole_h -- cgit v1.2.3