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| 1 /* | |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
| 14 * its contributors may be used to endorse or promote products derived | |
| 15 * from this software without specific prior written permission. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #ifndef ZeroPole_h | |
| 30 #define ZeroPole_h | |
| 31 | |
| 32 #include "platform/PlatformExport.h" | |
| 33 #include "wtf/Allocator.h" | |
| 34 #include "wtf/build_config.h" | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 // ZeroPole is a simple filter with one zero and one pole. | |
| 39 | |
| 40 class PLATFORM_EXPORT ZeroPole { | |
| 41 DISALLOW_NEW(); | |
| 42 | |
| 43 public: | |
| 44 ZeroPole() : m_zero(0), m_pole(0), m_lastX(0), m_lastY(0) {} | |
| 45 | |
| 46 void process(const float* source, | |
| 47 float* destination, | |
| 48 unsigned framesToProcess); | |
| 49 | |
| 50 // Reset filter state. | |
| 51 void reset() { | |
| 52 m_lastX = 0; | |
| 53 m_lastY = 0; | |
| 54 } | |
| 55 | |
| 56 void setZero(float zero) { m_zero = zero; } | |
| 57 void setPole(float pole) { m_pole = pole; } | |
| 58 | |
| 59 float zero() const { return m_zero; } | |
| 60 float pole() const { return m_pole; } | |
| 61 | |
| 62 private: | |
| 63 float m_zero; | |
| 64 float m_pole; | |
| 65 float m_lastX; | |
| 66 float m_lastY; | |
| 67 }; | |
| 68 | |
| 69 } // namespace blink | |
| 70 | |
| 71 #endif // ZeroPole_h | |
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Chromium Code Reviews
Issue 2432473002:
Remove ZeroPole class and files (Closed)
