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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/modules/audio_processing/aec3/fft_data_avx2.cc | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/modules/audio_processing/aec3/fft_data_avx2.cc')
-rw-r--r-- | third_party/libwebrtc/modules/audio_processing/aec3/fft_data_avx2.cc | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_processing/aec3/fft_data_avx2.cc b/third_party/libwebrtc/modules/audio_processing/aec3/fft_data_avx2.cc new file mode 100644 index 0000000000..a4b3056071 --- /dev/null +++ b/third_party/libwebrtc/modules/audio_processing/aec3/fft_data_avx2.cc @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2020 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <immintrin.h> + +#include "api/array_view.h" +#include "modules/audio_processing/aec3/fft_data.h" + +namespace webrtc { + +// Computes the power spectrum of the data. +void FftData::SpectrumAVX2(rtc::ArrayView<float> power_spectrum) const { + RTC_DCHECK_EQ(kFftLengthBy2Plus1, power_spectrum.size()); + for (size_t k = 0; k < kFftLengthBy2; k += 8) { + __m256 r = _mm256_loadu_ps(&re[k]); + __m256 i = _mm256_loadu_ps(&im[k]); + __m256 ii = _mm256_mul_ps(i, i); + ii = _mm256_fmadd_ps(r, r, ii); + _mm256_storeu_ps(&power_spectrum[k], ii); + } + power_spectrum[kFftLengthBy2] = re[kFftLengthBy2] * re[kFftLengthBy2] + + im[kFftLengthBy2] * im[kFftLengthBy2]; +} + +} // namespace webrtc |