content/media/webaudio/blink/DirectConvolver.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     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  */
    29 #ifndef DirectConvolver_h
    30 #define DirectConvolver_h
    32 #include "nsTArray.h"
    33 #include "mozilla/MemoryReporting.h"
    35 namespace WebCore {
    37 class DirectConvolver {
    38 public:
    39     DirectConvolver(size_t inputBlockSize);
    41     void process(const nsTArray<float>* convolutionKernel, const float* sourceP, float* destP, size_t framesToProcess);
    43     void reset();
    45     size_t sizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
    46     {
    47         size_t amount = aMallocSizeOf(this);
    48         amount += m_buffer.SizeOfExcludingThis(aMallocSizeOf);
    49         return amount;
    50     }
    53 private:
    54     size_t m_inputBlockSize;
    56     nsTArray<float> m_buffer;
    57 };
    59 } // namespace WebCore
    61 #endif // DirectConvolver_h

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