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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| 11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
| 12 * | 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND |
| 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE | 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE |
| 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| 23 * DAMAGE. | 23 * DAMAGE. |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #ifndef BiquadProcessor_h | 26 #ifndef BiquadProcessor_h |
| 27 #define BiquadProcessor_h | 27 #define BiquadProcessor_h |
| 28 | 28 |
| 29 #include <memory> |
| 29 #include "modules/webaudio/AudioNode.h" | 30 #include "modules/webaudio/AudioNode.h" |
| 30 #include "modules/webaudio/AudioParam.h" | 31 #include "modules/webaudio/AudioParam.h" |
| 31 #include "platform/audio/AudioDSPKernel.h" | 32 #include "platform/audio/AudioDSPKernel.h" |
| 32 #include "platform/audio/AudioDSPKernelProcessor.h" | 33 #include "platform/audio/AudioDSPKernelProcessor.h" |
| 33 #include "platform/audio/Biquad.h" | 34 #include "platform/audio/Biquad.h" |
| 34 #include "wtf/RefPtr.h" | 35 #include "wtf/RefPtr.h" |
| 35 #include <memory> | |
| 36 | 36 |
| 37 namespace blink { | 37 namespace blink { |
| 38 | 38 |
| 39 // BiquadProcessor is an AudioDSPKernelProcessor which uses Biquad objects to | 39 // BiquadProcessor is an AudioDSPKernelProcessor which uses Biquad objects to |
| 40 // implement several common filters. | 40 // implement several common filters. |
| 41 | 41 |
| 42 class BiquadProcessor final : public AudioDSPKernelProcessor { | 42 class BiquadProcessor final : public AudioDSPKernelProcessor { |
| 43 public: | 43 public: |
| 44 // This values are used in histograms and should not be renumbered or deleted. | 44 // This values are used in histograms and should not be renumbered or deleted. |
| 45 enum FilterType { | 45 enum FilterType { |
| (...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 100 // so DSP kernels know when to re-compute coefficients | 100 // so DSP kernels know when to re-compute coefficients |
| 101 bool m_filterCoefficientsDirty; | 101 bool m_filterCoefficientsDirty; |
| 102 | 102 |
| 103 // Set to true if any of the filter parameters are sample-accurate. | 103 // Set to true if any of the filter parameters are sample-accurate. |
| 104 bool m_hasSampleAccurateValues; | 104 bool m_hasSampleAccurateValues; |
| 105 }; | 105 }; |
| 106 | 106 |
| 107 } // namespace blink | 107 } // namespace blink |
| 108 | 108 |
| 109 #endif // BiquadProcessor_h | 109 #endif // BiquadProcessor_h |
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