Index: media/base/simd/sinc_resampler_sse.cc |
diff --git a/media/base/simd/sinc_resampler_sse.cc b/media/base/simd/sinc_resampler_sse.cc |
deleted file mode 100644 |
index f0aec1ce673c88038176b1baa79bae64f11b24b5..0000000000000000000000000000000000000000 |
--- a/media/base/simd/sinc_resampler_sse.cc |
+++ /dev/null |
@@ -1,48 +0,0 @@ |
-// Copyright 2013 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#include "media/base/sinc_resampler.h" |
- |
-#include <xmmintrin.h> |
- |
-namespace media { |
- |
-float SincResampler::Convolve_SSE(const float* input_ptr, const float* k1, |
- const float* k2, |
- double kernel_interpolation_factor) { |
- __m128 m_input; |
- __m128 m_sums1 = _mm_setzero_ps(); |
- __m128 m_sums2 = _mm_setzero_ps(); |
- |
- // Based on |input_ptr| alignment, we need to use loadu or load. Unrolling |
- // these loops hurt performance in local testing. |
- if (reinterpret_cast<uintptr_t>(input_ptr) & 0x0F) { |
- for (int i = 0; i < kKernelSize; i += 4) { |
- m_input = _mm_loadu_ps(input_ptr + i); |
- m_sums1 = _mm_add_ps(m_sums1, _mm_mul_ps(m_input, _mm_load_ps(k1 + i))); |
- m_sums2 = _mm_add_ps(m_sums2, _mm_mul_ps(m_input, _mm_load_ps(k2 + i))); |
- } |
- } else { |
- for (int i = 0; i < kKernelSize; i += 4) { |
- m_input = _mm_load_ps(input_ptr + i); |
- m_sums1 = _mm_add_ps(m_sums1, _mm_mul_ps(m_input, _mm_load_ps(k1 + i))); |
- m_sums2 = _mm_add_ps(m_sums2, _mm_mul_ps(m_input, _mm_load_ps(k2 + i))); |
- } |
- } |
- |
- // Linearly interpolate the two "convolutions". |
- m_sums1 = _mm_mul_ps(m_sums1, _mm_set_ps1(1.0 - kernel_interpolation_factor)); |
- m_sums2 = _mm_mul_ps(m_sums2, _mm_set_ps1(kernel_interpolation_factor)); |
- m_sums1 = _mm_add_ps(m_sums1, m_sums2); |
- |
- // Sum components together. |
- float result; |
- m_sums2 = _mm_add_ps(_mm_movehl_ps(m_sums1, m_sums1), m_sums1); |
- _mm_store_ss(&result, _mm_add_ss(m_sums2, _mm_shuffle_ps( |
- m_sums2, m_sums2, 1))); |
- |
- return result; |
-} |
- |
-} // namespace media |