1/*
2 * Copyright (C) 2012 Intel 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 DirectConvolver_h
30#define DirectConvolver_h
31
32#include "platform/PlatformExport.h"
33#include "platform/audio/AudioArray.h"
34
35#if USE(WEBAUDIO_IPP)
36#include <ipps.h>
37#endif // USE(WEBAUDIO_IPP)
38
39namespace blink {
40
41class PLATFORM_EXPORT DirectConvolver {
42public:
43    DirectConvolver(size_t inputBlockSize);
44
45    void process(AudioFloatArray* convolutionKernel, const float* sourceP, float* destP, size_t framesToProcess);
46
47    void reset();
48
49private:
50    size_t m_inputBlockSize;
51
52#if USE(WEBAUDIO_IPP)
53    AudioFloatArray m_overlayBuffer;
54#endif // USE(WEBAUDIO_IPP)
55    AudioFloatArray m_buffer;
56};
57
58} // namespace blink
59
60#endif // DirectConvolver_h
61