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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef StereoPannerNode_h | 5 #ifndef StereoPannerNode_h |
6 #define StereoPannerNode_h | 6 #define StereoPannerNode_h |
7 | 7 |
8 #include "base/gtest_prod_util.h" | 8 #include "base/gtest_prod_util.h" |
9 #include "modules/webaudio/AudioNode.h" | 9 #include "modules/webaudio/AudioNode.h" |
10 #include "modules/webaudio/AudioParam.h" | 10 #include "modules/webaudio/AudioParam.h" |
11 #include "platform/audio/AudioBus.h" | 11 #include "platform/audio/AudioBus.h" |
12 #include "platform/audio/StereoPanner.h" | 12 #include "platform/audio/StereoPanner.h" |
13 #include <memory> | 13 #include <memory> |
14 | 14 |
15 namespace blink { | 15 namespace blink { |
16 | 16 |
17 class BaseAudioContext; | 17 class BaseAudioContext; |
| 18 class StereoPannerOptions; |
18 | 19 |
19 // StereoPannerNode is an AudioNode with one input and one output. It is | 20 // StereoPannerNode is an AudioNode with one input and one output. It is |
20 // specifically designed for equal-power stereo panning. | 21 // specifically designed for equal-power stereo panning. |
21 class StereoPannerHandler final : public AudioHandler { | 22 class StereoPannerHandler final : public AudioHandler { |
22 public: | 23 public: |
23 static PassRefPtr<StereoPannerHandler> create(AudioNode&, float sampleRate,
AudioParamHandler& pan); | 24 static PassRefPtr<StereoPannerHandler> create(AudioNode&, float sampleRate,
AudioParamHandler& pan); |
24 ~StereoPannerHandler() override; | 25 ~StereoPannerHandler() override; |
25 | 26 |
26 void process(size_t framesToProcess) override; | 27 void process(size_t framesToProcess) override; |
27 void initialize() override; | 28 void initialize() override; |
28 | 29 |
29 void setChannelCount(unsigned long, ExceptionState&) final; | 30 void setChannelCount(unsigned long, ExceptionState&) final; |
30 void setChannelCountMode(const String&, ExceptionState&) final; | 31 void setChannelCountMode(const String&, ExceptionState&) final; |
31 | 32 |
32 private: | 33 private: |
33 StereoPannerHandler(AudioNode&, float sampleRate, AudioParamHandler& pan); | 34 StereoPannerHandler(AudioNode&, float sampleRate, AudioParamHandler& pan); |
34 | 35 |
35 std::unique_ptr<StereoPanner> m_stereoPanner; | 36 std::unique_ptr<StereoPanner> m_stereoPanner; |
36 RefPtr<AudioParamHandler> m_pan; | 37 RefPtr<AudioParamHandler> m_pan; |
37 | 38 |
38 AudioFloatArray m_sampleAccuratePanValues; | 39 AudioFloatArray m_sampleAccuratePanValues; |
39 | 40 |
40 FRIEND_TEST_ALL_PREFIXES(StereoPannerNodeTest, StereoPannerLifetime); | 41 FRIEND_TEST_ALL_PREFIXES(StereoPannerNodeTest, StereoPannerLifetime); |
41 }; | 42 }; |
42 | 43 |
43 class StereoPannerNode final : public AudioNode { | 44 class StereoPannerNode final : public AudioNode { |
44 DEFINE_WRAPPERTYPEINFO(); | 45 DEFINE_WRAPPERTYPEINFO(); |
45 public: | 46 public: |
46 static StereoPannerNode* create(BaseAudioContext&, ExceptionState&); | 47 static StereoPannerNode* create(BaseAudioContext&, ExceptionState&); |
| 48 static StereoPannerNode* create(BaseAudioContext*, const StereoPannerOptions
&, ExceptionState&); |
47 DECLARE_VIRTUAL_TRACE(); | 49 DECLARE_VIRTUAL_TRACE(); |
48 | 50 |
49 AudioParam* pan() const; | 51 AudioParam* pan() const; |
50 | 52 |
51 private: | 53 private: |
52 StereoPannerNode(BaseAudioContext&); | 54 StereoPannerNode(BaseAudioContext&); |
53 | 55 |
54 Member<AudioParam> m_pan; | 56 Member<AudioParam> m_pan; |
55 }; | 57 }; |
56 | 58 |
57 } // namespace blink | 59 } // namespace blink |
58 | 60 |
59 #endif // StereoPannerNode_h | 61 #endif // StereoPannerNode_h |
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