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-rw-r--r--WebCore/platform/audio/ReverbAccumulationBuffer.cpp119
1 files changed, 0 insertions, 119 deletions
diff --git a/WebCore/platform/audio/ReverbAccumulationBuffer.cpp b/WebCore/platform/audio/ReverbAccumulationBuffer.cpp
deleted file mode 100644
index 3d694d1..0000000
--- a/WebCore/platform/audio/ReverbAccumulationBuffer.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * 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.
- */
-
-#include "config.h"
-
-#if ENABLE(WEB_AUDIO)
-
-#include "ReverbAccumulationBuffer.h"
-
-#include "VectorMath.h"
-
-namespace WebCore {
-
-using namespace VectorMath;
-
-ReverbAccumulationBuffer::ReverbAccumulationBuffer(size_t length)
- : m_buffer(length)
- , m_readIndex(0)
- , m_readTimeFrame(0)
-{
-}
-
-void ReverbAccumulationBuffer::readAndClear(float* destination, size_t numberOfFrames)
-{
- size_t bufferLength = m_buffer.size();
- bool isCopySafe = m_readIndex <= bufferLength && numberOfFrames <= bufferLength;
-
- ASSERT(isCopySafe);
- if (!isCopySafe)
- return;
-
- size_t framesAvailable = bufferLength - m_readIndex;
- size_t numberOfFrames1 = std::min(numberOfFrames, framesAvailable);
- size_t numberOfFrames2 = numberOfFrames - numberOfFrames1;
-
- float* source = m_buffer.data();
- memcpy(destination, source + m_readIndex, sizeof(float) * numberOfFrames1);
- memset(source + m_readIndex, 0, sizeof(float) * numberOfFrames1);
-
- // Handle wrap-around if necessary
- if (numberOfFrames2 > 0) {
- memcpy(destination + numberOfFrames1, source, sizeof(float) * numberOfFrames2);
- memset(source, 0, sizeof(float) * numberOfFrames2);
- }
-
- m_readIndex = (m_readIndex + numberOfFrames) % bufferLength;
- m_readTimeFrame += numberOfFrames;
-}
-
-void ReverbAccumulationBuffer::updateReadIndex(int* readIndex, size_t numberOfFrames) const
-{
- // Update caller's readIndex
- *readIndex = (*readIndex + numberOfFrames) % m_buffer.size();
-}
-
-int ReverbAccumulationBuffer::accumulate(float* source, size_t numberOfFrames, int* readIndex, size_t delayFrames)
-{
- size_t bufferLength = m_buffer.size();
-
- size_t writeIndex = (*readIndex + delayFrames) % bufferLength;
-
- // Update caller's readIndex
- *readIndex = (*readIndex + numberOfFrames) % bufferLength;
-
- size_t framesAvailable = bufferLength - writeIndex;
- size_t numberOfFrames1 = std::min(numberOfFrames, framesAvailable);
- size_t numberOfFrames2 = numberOfFrames - numberOfFrames1;
-
- float* destination = m_buffer.data();
-
- bool isSafe = writeIndex <= bufferLength && numberOfFrames1 + writeIndex <= bufferLength && numberOfFrames2 <= bufferLength;
- ASSERT(isSafe);
- if (!isSafe)
- return 0;
-
- vadd(source, 1, destination + writeIndex, 1, destination + writeIndex, 1, numberOfFrames1);
-
- // Handle wrap-around if necessary
- if (numberOfFrames2 > 0)
- vadd(source + numberOfFrames1, 1, destination, 1, destination, 1, numberOfFrames2);
-
- return writeIndex;
-}
-
-void ReverbAccumulationBuffer::reset()
-{
- m_buffer.zero();
- m_readIndex = 0;
- m_readTimeFrame = 0;
-}
-
-} // namespace WebCore
-
-#endif // ENABLE(WEB_AUDIO)