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1 /*
2  * Copyright (C) 2010, 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  * 1.  Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2.  Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 ANY
17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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 ON
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
22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  */
24 
25 #ifndef DelayDSPKernel_h
26 #define DelayDSPKernel_h
27 
28 #include "platform/audio/AudioDelayDSPKernel.h"
29 #include "modules/webaudio/DelayProcessor.h"
30 
31 namespace blink {
32 
33 class DelayProcessor;
34 
35 class DelayDSPKernel FINAL : public AudioDelayDSPKernel {
36 public:
37     explicit DelayDSPKernel(DelayProcessor*);
38 
39 protected:
40     virtual bool hasSampleAccurateValues() OVERRIDE;
41     virtual void calculateSampleAccurateValues(float* delayTimes, size_t framesToProcess) OVERRIDE;
42     virtual double delayTime(float sampleRate) OVERRIDE;
43 
44 private:
delayProcessor()45     DelayProcessor* delayProcessor() { return static_cast<DelayProcessor*>(processor()); }
46 };
47 
48 } // namespace blink
49 
50 #endif // DelayDSPKernel_h
51