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-rw-r--r--WebCore/platform/audio/ReverbInputBuffer.h64
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diff --git a/WebCore/platform/audio/ReverbInputBuffer.h b/WebCore/platform/audio/ReverbInputBuffer.h
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--- a/WebCore/platform/audio/ReverbInputBuffer.h
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-/*
- * Copyright (C) 2010 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- * its contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef ReverbInputBuffer_h
-#define ReverbInputBuffer_h
-
-#include "AudioArray.h"
-
-namespace WebCore {
-
-// ReverbInputBuffer is used to buffer input samples for deferred processing by the background threads.
-class ReverbInputBuffer {
-public:
- ReverbInputBuffer(size_t length);
-
- // The realtime audio thread keeps writing samples here.
- // The assumption is that the buffer's length is evenly divisible by numberOfFrames (for nearly all cases this will be fine).
- // FIXME: remove numberOfFrames restriction...
- void write(float* sourceP, size_t numberOfFrames);
-
- // Background threads can call this to check if there's anything to read...
- size_t writeIndex() const { return m_writeIndex; }
-
- // The individual background threads read here (and hope that they can keep up with the buffer writing).
- // readIndex is updated with the next readIndex to read from...
- // The assumption is that the buffer's length is evenly divisible by numberOfFrames.
- // FIXME: remove numberOfFrames restriction...
- float* directReadFrom(int* readIndex, size_t numberOfFrames);
-
- void reset();
-
-private:
- AudioFloatArray m_buffer;
- size_t m_writeIndex;
-};
-
-} // namespace WebCore
-
-#endif // ReverbInputBuffer_h