59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
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/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <arm_neon.h>
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#include "./vpx_config.h"
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#include "./vpx_dsp_rtcd.h"
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static INLINE void load_u8_8x8(const uint8_t *s, const ptrdiff_t p,
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uint8x8_t *const s0, uint8x8_t *const s1,
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uint8x8_t *const s2, uint8x8_t *const s3,
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uint8x8_t *const s4, uint8x8_t *const s5,
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uint8x8_t *const s6, uint8x8_t *const s7) {
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*s0 = vld1_u8(s);
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s += p;
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*s1 = vld1_u8(s);
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s += p;
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*s2 = vld1_u8(s);
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s += p;
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*s3 = vld1_u8(s);
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s += p;
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*s4 = vld1_u8(s);
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s += p;
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*s5 = vld1_u8(s);
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s += p;
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*s6 = vld1_u8(s);
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s += p;
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*s7 = vld1_u8(s);
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}
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static INLINE uint8x8_t convolve8_8(const int16x8_t s0, const int16x8_t s1,
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const int16x8_t s2, const int16x8_t s3,
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const int16x8_t s4, const int16x8_t s5,
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const int16x8_t s6, const int16x8_t s7,
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const int16x8_t filters,
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const int16x8_t filter3,
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const int16x8_t filter4) {
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const int16x4_t filters_lo = vget_low_s16(filters);
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const int16x4_t filters_hi = vget_high_s16(filters);
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int16x8_t sum;
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sum = vmulq_lane_s16(s0, filters_lo, 0);
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sum = vmlaq_lane_s16(sum, s1, filters_lo, 1);
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sum = vmlaq_lane_s16(sum, s2, filters_lo, 2);
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sum = vmlaq_lane_s16(sum, s5, filters_hi, 1);
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sum = vmlaq_lane_s16(sum, s6, filters_hi, 2);
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sum = vmlaq_lane_s16(sum, s7, filters_hi, 3);
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sum = vqaddq_s16(sum, vmulq_s16(s3, filter3));
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sum = vqaddq_s16(sum, vmulq_s16(s4, filter4));
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return vqrshrun_n_s16(sum, 7);
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}
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