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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #include "webrtc/common_audio/fir_filter_sse.h" | 11 #include "webrtc/common_audio/fir_filter_sse.h" |
12 | 12 |
13 #include <stdint.h> | 13 #include <stdint.h> |
14 #include <string.h> | 14 #include <string.h> |
15 #include <xmmintrin.h> | 15 #include <xmmintrin.h> |
16 | 16 |
17 #include "webrtc/base/checks.h" | 17 #include "webrtc/rtc_base/checks.h" |
18 #include "webrtc/system_wrappers/include/aligned_malloc.h" | 18 #include "webrtc/system_wrappers/include/aligned_malloc.h" |
19 | 19 |
20 namespace webrtc { | 20 namespace webrtc { |
21 | 21 |
22 FIRFilterSSE2::FIRFilterSSE2(const float* coefficients, | 22 FIRFilterSSE2::FIRFilterSSE2(const float* coefficients, |
23 size_t coefficients_length, | 23 size_t coefficients_length, |
24 size_t max_input_length) | 24 size_t max_input_length) |
25 : // Closest higher multiple of four. | 25 : // Closest higher multiple of four. |
26 coefficients_length_((coefficients_length + 3) & ~0x03), | 26 coefficients_length_((coefficients_length + 3) & ~0x03), |
27 state_length_(coefficients_length_ - 1), | 27 state_length_(coefficients_length_ - 1), |
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72 } | 72 } |
73 m_sum = _mm_add_ps(_mm_movehl_ps(m_sum, m_sum), m_sum); | 73 m_sum = _mm_add_ps(_mm_movehl_ps(m_sum, m_sum), m_sum); |
74 _mm_store_ss(out + i, _mm_add_ss(m_sum, _mm_shuffle_ps(m_sum, m_sum, 1))); | 74 _mm_store_ss(out + i, _mm_add_ss(m_sum, _mm_shuffle_ps(m_sum, m_sum, 1))); |
75 } | 75 } |
76 | 76 |
77 // Update current state. | 77 // Update current state. |
78 memmove(state_.get(), &state_[length], state_length_ * sizeof(state_[0])); | 78 memmove(state_.get(), &state_[length], state_length_ * sizeof(state_[0])); |
79 } | 79 } |
80 | 80 |
81 } // namespace webrtc | 81 } // namespace webrtc |
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