Move chrome specific code from platform/audio/chromium to platform/audio

Source/platform/audio/chromium/FFTFrameOpenMAXDLAndroid.cpp

-/* Copyright (C) 2013 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.
- *
- * 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)
-
-#if OS(ANDROID) && USE(WEBAUDIO_OPENMAX_DL_FFT)
-
-#include "platform/audio/FFTFrame.h"
-
-#include "platform/audio/AudioArray.h"
-#include "platform/audio/VectorMath.h"
-#include "wtf/MathExtras.h"
-#include <dl/sp/api/armSP.h>
-#include <dl/sp/api/omxSP.h>
-
-namespace WebCore {
-
-#if !ASSERT_DISABLED
-const unsigned kMaxFFTPow2Size = 15;
-#endif
-
-// Normal constructor: allocates for a given fftSize.
-FFTFrame::FFTFrame(unsigned fftSize)
-    : m_FFTSize(fftSize)
-    , m_log2FFTSize(static_cast<unsigned>(log2(fftSize)))
-    , m_forwardContext(0)
-    , m_inverseContext(0)
-    , m_complexData(fftSize)
-    , m_realData(fftSize / 2)
-    , m_imagData(fftSize / 2)
-{
-    // We only allow power of two.
-    ASSERT(1UL << m_log2FFTSize == m_FFTSize);
-
-    m_forwardContext = contextForSize(m_log2FFTSize);
-    m_inverseContext = contextForSize(m_log2FFTSize);
-}
-
-// Creates a blank/empty frame (interpolate() must later be called).
-FFTFrame::FFTFrame()
-    : m_FFTSize(0)
-    , m_log2FFTSize(0)
-    , m_forwardContext(0)
-    , m_inverseContext(0)
-{
-}
-
-// Copy constructor.
-FFTFrame::FFTFrame(const FFTFrame& frame)
-    : m_FFTSize(frame.m_FFTSize)
-    , m_log2FFTSize(frame.m_log2FFTSize)
-    , m_forwardContext(0)
-    , m_inverseContext(0)
-    , m_complexData(frame.m_FFTSize)
-    , m_realData(frame.m_FFTSize / 2)
-    , m_imagData(frame.m_FFTSize / 2)
-{
-    m_forwardContext = contextForSize(m_log2FFTSize);
-    m_inverseContext = contextForSize(m_log2FFTSize);
-
-    // Copy/setup frame data.
-    unsigned nbytes = sizeof(float) * (m_FFTSize / 2);
-    memcpy(realData(), frame.realData(), nbytes);
-    memcpy(imagData(), frame.imagData(), nbytes);
-}
-
-void FFTFrame::initialize()
-{
-}
-
-void FFTFrame::cleanup()
-{
-}
-
-FFTFrame::~FFTFrame()
-{
-    if (m_forwardContext)
-        free(m_forwardContext);
-    if (m_inverseContext)
-        free(m_inverseContext);
-}
-
-void FFTFrame::multiply(const FFTFrame& frame)
-{
-    FFTFrame& frame1 = *this;
-    FFTFrame& frame2 = const_cast<FFTFrame&>(frame);
-
-    float* realP1 = frame1.realData();
-    float* imagP1 = frame1.imagData();
-    const float* realP2 = frame2.realData();
-    const float* imagP2 = frame2.imagData();
-
-    unsigned halfSize = fftSize() / 2;
-    float real0 = realP1[0];
-    float imag0 = imagP1[0];
-
-    VectorMath::zvmul(realP1, imagP1, realP2, imagP2, realP1, imagP1, halfSize);
-
-    // Multiply the packed DC/nyquist component
-    realP1[0] = real0 * realP2[0];
-    imagP1[0] = imag0 * imagP2[0];
-}
-
-void FFTFrame::doFFT(const float* data)
-{
-    ASSERT(m_forwardContext);
-
-    if (m_forwardContext) {
-        AudioFloatArray complexFFT(m_FFTSize + 2);
-
-        omxSP_FFTFwd_RToCCS_F32(data, complexFFT.data(), m_forwardContext);
-
-        unsigned len = m_FFTSize / 2;
-
-        // Split FFT data into real and imaginary arrays.
-        const float* c = complexFFT.data();
-        float* real = m_realData.data();
-        float* imag = m_imagData.data();
-        for (unsigned k = 1; k < len; ++k) {
-            int index = 2 * k;
-            real[k] = c[index];
-            imag[k] = c[index + 1];
-        }
-        real[0] = c[0];
-        imag[0] = c[m_FFTSize];
-    }
-}
-
-void FFTFrame::doInverseFFT(float* data)
-{
-    ASSERT(m_inverseContext);
-
-    if (m_inverseContext) {
-        AudioFloatArray fftDataArray(m_FFTSize + 2);
-
-        unsigned len = m_FFTSize / 2;
-
-        // Pack the real and imaginary data into the complex array format
-        float* fftData = fftDataArray.data();
-        const float* real = m_realData.data();
-        const float* imag = m_imagData.data();
-        for (unsigned k = 1; k < len; ++k) {
-            int index = 2 * k;
-            fftData[index] = real[k];
-            fftData[index + 1] = imag[k];
-        }
-        fftData[0] = real[0];
-        fftData[1] = 0;
-        fftData[m_FFTSize] = imag[0];
-        fftData[m_FFTSize + 1] = 0;
-
-        omxSP_FFTInv_CCSToR_F32(fftData, data, m_inverseContext);
-    }
-}
-
-float* FFTFrame::realData() const
-{
-    return const_cast<float*>(m_realData.data());
-}
-
-float* FFTFrame::imagData() const
-{
-    return const_cast<float*>(m_imagData.data());
-}
-
-OMXFFTSpec_R_F32* FFTFrame::contextForSize(unsigned log2FFTSize)
-{
-    ASSERT(log2FFTSize);
-    ASSERT(log2FFTSize <= kMaxFFTPow2Size);
-    int bufSize;
-    OMXResult status = omxSP_FFTGetBufSize_R_F32(log2FFTSize, &bufSize);
-
-    if (status == OMX_Sts_NoErr) {
-        OMXFFTSpec_R_F32* context = static_cast<OMXFFTSpec_R_F32*>(malloc(bufSize));
-        omxSP_FFTInit_R_F32(context, log2FFTSize);
-        return context;
-    }
-
-    return 0;
-}
-
-} // namespace WebCore
-
-#endif // #if OS(ANDROID) && !USE(WEBAUDIO_OPENMAX_DL_FFT)
-
-#endif // ENABLE(WEB_AUDIO)