OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 2011, Google Inc. All rights reserved. | 2 * Copyright (C) 2011, 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 AN
Y | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y | 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y |
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N | 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N |
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
23 */ | 23 */ |
24 | 24 |
25 #ifndef WaveShaperProcessor_h | 25 #ifndef WaveShaperProcessor_h |
26 #define WaveShaperProcessor_h | 26 #define WaveShaperProcessor_h |
27 | 27 |
| 28 #include "core/dom/DOMTypedArray.h" |
| 29 #include "modules/webaudio/AudioNode.h" |
28 #include "platform/audio/AudioDSPKernel.h" | 30 #include "platform/audio/AudioDSPKernel.h" |
29 #include "platform/audio/AudioDSPKernelProcessor.h" | 31 #include "platform/audio/AudioDSPKernelProcessor.h" |
30 #include "modules/webaudio/AudioNode.h" | |
31 #include "wtf/Float32Array.h" | |
32 #include "wtf/RefPtr.h" | 32 #include "wtf/RefPtr.h" |
33 #include "wtf/ThreadingPrimitives.h" | 33 #include "wtf/ThreadingPrimitives.h" |
34 | 34 |
35 namespace blink { | 35 namespace blink { |
36 | 36 |
37 // WaveShaperProcessor is an AudioDSPKernelProcessor which uses WaveShaperDSPKer
nel objects to implement non-linear distortion effects. | 37 // WaveShaperProcessor is an AudioDSPKernelProcessor which uses WaveShaperDSPKer
nel objects to implement non-linear distortion effects. |
38 | 38 |
39 class WaveShaperProcessor final : public AudioDSPKernelProcessor { | 39 class WaveShaperProcessor final : public AudioDSPKernelProcessor { |
40 public: | 40 public: |
41 enum OverSampleType { | 41 enum OverSampleType { |
42 OverSampleNone, | 42 OverSampleNone, |
43 OverSample2x, | 43 OverSample2x, |
44 OverSample4x | 44 OverSample4x |
45 }; | 45 }; |
46 | 46 |
47 WaveShaperProcessor(float sampleRate, size_t numberOfChannels); | 47 WaveShaperProcessor(float sampleRate, size_t numberOfChannels); |
48 | 48 |
49 virtual ~WaveShaperProcessor(); | 49 virtual ~WaveShaperProcessor(); |
50 | 50 |
51 virtual PassOwnPtr<AudioDSPKernel> createKernel() override; | 51 virtual PassOwnPtr<AudioDSPKernel> createKernel() override; |
52 | 52 |
53 virtual void process(const AudioBus* source, AudioBus* destination, size_t f
ramesToProcess) override; | 53 virtual void process(const AudioBus* source, AudioBus* destination, size_t f
ramesToProcess) override; |
54 | 54 |
55 void setCurve(Float32Array*); | 55 void setCurve(DOMFloat32Array*); |
56 Float32Array* curve() { return m_curve.get(); } | 56 DOMFloat32Array* curve() { return m_curve.get(); } |
57 | 57 |
58 void setOversample(OverSampleType); | 58 void setOversample(OverSampleType); |
59 OverSampleType oversample() const { return m_oversample; } | 59 OverSampleType oversample() const { return m_oversample; } |
60 | 60 |
61 private: | 61 private: |
62 // m_curve represents the non-linear shaping curve. | 62 // m_curve represents the non-linear shaping curve. |
63 RefPtr<Float32Array> m_curve; | 63 RefPtr<DOMFloat32Array> m_curve; |
64 | 64 |
65 OverSampleType m_oversample; | 65 OverSampleType m_oversample; |
66 }; | 66 }; |
67 | 67 |
68 } // namespace blink | 68 } // namespace blink |
69 | 69 |
70 #endif // WaveShaperProcessor_h | 70 #endif // WaveShaperProcessor_h |
OLD | NEW |