diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/platform/audio/chromium/FFTFrameOpenMAXDLAndroid.cpp')
| -rw-r--r-- | chromium/third_party/WebKit/Source/platform/audio/chromium/FFTFrameOpenMAXDLAndroid.cpp | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/chromium/third_party/WebKit/Source/platform/audio/chromium/FFTFrameOpenMAXDLAndroid.cpp b/chromium/third_party/WebKit/Source/platform/audio/chromium/FFTFrameOpenMAXDLAndroid.cpp deleted file mode 100644 index fa48892e399..00000000000 --- a/chromium/third_party/WebKit/Source/platform/audio/chromium/FFTFrameOpenMAXDLAndroid.cpp +++ /dev/null @@ -1,209 +0,0 @@ -/* 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) |