Remove unused audio/ipp.

third_party/WebKit/Source/platform/audio/ipp/FFTFrameIPP.cpp

Index: third_party/WebKit/Source/platform/audio/ipp/FFTFrameIPP.cpp
diff --git a/third_party/WebKit/Source/platform/audio/ipp/FFTFrameIPP.cpp b/third_party/WebKit/Source/platform/audio/ipp/FFTFrameIPP.cpp
deleted file mode 100644
index 367707c6e4683fd048a653d6a51acc08fa6c1ef5..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/audio/ipp/FFTFrameIPP.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright (C) 2011 Google Inc. All rights reserved.
- * Copyright (C) 2012 Intel 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.
- *
- * 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.
- */
-
-// FFTFrame implementation using Intel IPP's DFT algorithm,
-// suitable for use on Linux.
-
-#include "platform/wtf/build_config.h"
-
-#if USE(WEBAUDIO_IPP)
-
-#include "platform/audio/FFTFrame.h"
-
-#include "platform/wtf/MathExtras.h"
-
-namespace blink {
-
-const unsigned maximumFFTPower2Size = 24;
-
-// Normal constructor: allocates for a given fftSize.
-FFTFrame::FFTFrame(unsigned fftSize)
-    : m_FFTSize(fftSize),
-      m_log2FFTSize(static_cast<unsigned>(log2(fftSize))),
-      m_realData(fftSize / 2),
-      m_imagData(fftSize / 2),
-      m_complexData(fftSize) {
-  // We only allow power of two.
-  DCHECK_EQ(1UL << m_log2FFTSize, m_FFTSize);
-  DCHECK_LE(m_log2FFTSize, maximumFFTPower2Size);
-
-  ippsDFTInitAlloc_R_32f(&m_DFTSpec, m_FFTSize, IPP_FFT_NODIV_BY_ANY,
-                         ippAlgHintFast);
-  int bufferSize = 0;
-  ippsDFTGetBufSize_R_32f(m_DFTSpec, &bufferSize);
-  m_buffer = ippsMalloc_8u(bufferSize);
-}
-
-// Creates a blank/empty frame (interpolate() must later be called).
-FFTFrame::FFTFrame() : m_FFTSize(0), m_log2FFTSize(0) {}
-
-// Copy constructor.
-FFTFrame::FFTFrame(const FFTFrame& frame)
-    : m_FFTSize(frame.m_FFTSize),
-      m_log2FFTSize(frame.m_log2FFTSize),
-      m_realData(frame.m_FFTSize / 2),
-      m_imagData(frame.m_FFTSize / 2),
-      m_complexData(frame.m_FFTSize) {
-  ippsDFTInitAlloc_R_32f(&m_DFTSpec, m_FFTSize, IPP_FFT_NODIV_BY_ANY,
-                         ippAlgHintFast);
-  int bufferSize = 0;
-  ippsDFTGetBufSize_R_32f(m_DFTSpec, &bufferSize);
-  m_buffer = ippsMalloc_8u(bufferSize);
-
-  // Copy/setup frame data.
-  unsigned numberOfBytes = sizeof(float) * m_FFTSize;
-  memcpy(realData(), frame.realData(), numberOfBytes);
-  memcpy(imagData(), frame.imagData(), numberOfBytes);
-}
-
-void FFTFrame::initialize() {}
-
-void FFTFrame::cleanup() {}
-
-FFTFrame::~FFTFrame() {
-  ippsFree(m_buffer);
-  ippsDFTFree_R_32f(m_DFTSpec);
-}
-
-void FFTFrame::doFFT(const float* data) {
-  Ipp32f* complexP = m_complexData.data();
-
-  // Compute Forward transform to perm format.
-  ippsDFTFwd_RToPerm_32f(reinterpret_cast<Ipp32f*>(const_cast<float*>(data)),
-                         complexP, m_DFTSpec, m_buffer);
-
-  Ipp32f* realP = m_realData.data();
-  Ipp32f* imagP = m_imagData.data();
-  ippsCplxToReal_32fc(reinterpret_cast<Ipp32fc*>(complexP), realP, imagP,
-                      m_FFTSize >> 1);
-}
-
-void FFTFrame::doInverseFFT(float* data) {
-  Ipp32f* complexP = getUpToDateComplexData();
-
-  // Compute inverse transform.
-  ippsDFTInv_PermToR_32f(complexP, reinterpret_cast<Ipp32f*>(data), m_DFTSpec,
-                         m_buffer);
-
-  // Scale so that a forward then inverse FFT yields exactly the original data.
-  const float scale = 1.0 / m_FFTSize;
-
-  ippsMulC_32f_I(scale, reinterpret_cast<Ipp32f*>(data), m_FFTSize);
-}
-
-float* FFTFrame::getUpToDateComplexData() {
-  int len = m_FFTSize >> 1;
-  // Merge the real and imagimary vectors to complex vector.
-  Ipp32f* realP = m_realData.data();
-  Ipp32f* imagP = m_imagData.data();
-  Ipp32fc* complexP = reinterpret_cast<Ipp32fc*>(m_complexData.data());
-  ippsRealToCplx_32f(realP, imagP, complexP, len);
-
-  return const_cast<float*>(m_complexData.data());
-}
-
-}  // namespace blink
-
-#endif  // USE(WEBAUDIO_IPP)