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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 |
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| 67 vst1_lane_s32(cross_correlation, vreinterpret_s32_s64(sum2), 0); | 67 vst1_lane_s32(cross_correlation, vreinterpret_s32_s64(sum2), 0); |
| 68 #endif | 68 #endif |
| 69 } | 69 } |
| 70 | 70 |
| 71 /* NEON version of WebRtcSpl_CrossCorrelation() for ARM32/64 platforms. */ | 71 /* NEON version of WebRtcSpl_CrossCorrelation() for ARM32/64 platforms. */ |
| 72 void WebRtcSpl_CrossCorrelationNeon(int32_t* cross_correlation, | 72 void WebRtcSpl_CrossCorrelationNeon(int32_t* cross_correlation, |
| 73 const int16_t* seq1, | 73 const int16_t* seq1, |
| 74 const int16_t* seq2, | 74 const int16_t* seq2, |
| 75 int16_t dim_seq, | 75 int16_t dim_seq, |
| 76 int16_t dim_cross_correlation, | 76 int16_t dim_cross_correlation, |
| 77 int right_shifts, | 77 int16_t right_shifts, |
| 78 int step_seq2) { | 78 int16_t step_seq2) { |
| 79 int i = 0; | 79 int i = 0; |
| 80 | 80 |
| 81 for (i = 0; i < dim_cross_correlation; i++) { | 81 for (i = 0; i < dim_cross_correlation; i++) { |
| 82 const int16_t* seq1_ptr = seq1; | 82 const int16_t* seq1_ptr = seq1; |
| 83 const int16_t* seq2_ptr = seq2 + (step_seq2 * i); | 83 const int16_t* seq2_ptr = seq2 + (step_seq2 * i); |
| 84 | 84 |
| 85 DotProductWithScaleNeon(cross_correlation, | 85 DotProductWithScaleNeon(cross_correlation, |
| 86 seq1_ptr, | 86 seq1_ptr, |
| 87 seq2_ptr, | 87 seq2_ptr, |
| 88 dim_seq, | 88 dim_seq, |
| 89 right_shifts); | 89 right_shifts); |
| 90 cross_correlation++; | 90 cross_correlation++; |
| 91 } | 91 } |
| 92 } | 92 } |
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