| /* | 
 |  * Copyright (c) 2023, Alliance for Open Media. All rights reserved. | 
 |  * | 
 |  * This source code is subject to the terms of the BSD 2 Clause License and | 
 |  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License | 
 |  * was not distributed with this source code in the LICENSE file, you can | 
 |  * obtain it at www.aomedia.org/license/software. If the Alliance for Open | 
 |  * Media Patent License 1.0 was not distributed with this source code in the | 
 |  * PATENTS file, you can obtain it at www.aomedia.org/license/patent. | 
 |  */ | 
 |  | 
 | #include <assert.h> | 
 | #include <arm_neon.h> | 
 |  | 
 | #include "config/aom_config.h" | 
 | #include "config/av1_rtcd.h" | 
 |  | 
 | #include "aom_dsp/aom_dsp_common.h" | 
 | #include "aom_dsp/arm/mem_neon.h" | 
 | #include "aom_ports/mem.h" | 
 | #include "av1/common/convolve.h" | 
 | #include "av1/common/filter.h" | 
 |  | 
 | static inline uint16x4_t highbd_convolve6_4_y( | 
 |     const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, | 
 |     const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, | 
 |     const int16x8_t y_filter, const uint16x4_t max) { | 
 |   // Values at indices 0 and 7 of y_filter are zero. | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum = vmull_lane_s16(s0, y_filter_0_3, 1); | 
 |   sum = vmlal_lane_s16(sum, s1, y_filter_0_3, 2); | 
 |   sum = vmlal_lane_s16(sum, s2, y_filter_0_3, 3); | 
 |   sum = vmlal_lane_s16(sum, s3, y_filter_4_7, 0); | 
 |   sum = vmlal_lane_s16(sum, s4, y_filter_4_7, 1); | 
 |   sum = vmlal_lane_s16(sum, s5, y_filter_4_7, 2); | 
 |  | 
 |   uint16x4_t res = vqrshrun_n_s32(sum, COMPOUND_ROUND1_BITS); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve6_8_y( | 
 |     const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, | 
 |     const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, | 
 |     const int16x8_t y_filter, const uint16x8_t max) { | 
 |   // Values at indices 0 and 7 of y_filter are zero. | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_4_7, 2); | 
 |  | 
 |   int32x4_t sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_4_7, 2); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqrshrun_n_s32(sum0, COMPOUND_ROUND1_BITS), | 
 |                                 vqrshrun_n_s32(sum1, COMPOUND_ROUND1_BITS)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_y_sr_6tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *y_filter_ptr, const int bd) { | 
 |   const int16x8_t y_filter_0_7 = vld1q_s16(y_filter_ptr); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     const int16_t *s = (const int16_t *)(src_ptr + src_stride); | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     int16x4_t s0, s1, s2, s3, s4; | 
 |     load_s16_4x5(s, src_stride, &s0, &s1, &s2, &s3, &s4); | 
 |     s += 5 * src_stride; | 
 |  | 
 |     do { | 
 |       int16x4_t s5, s6, s7, s8; | 
 |       load_s16_4x4(s, src_stride, &s5, &s6, &s7, &s8); | 
 |  | 
 |       uint16x4_t d0 = | 
 |           highbd_convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter_0_7, max); | 
 |       uint16x4_t d1 = | 
 |           highbd_convolve6_4_y(s1, s2, s3, s4, s5, s6, y_filter_0_7, max); | 
 |       uint16x4_t d2 = | 
 |           highbd_convolve6_4_y(s2, s3, s4, s5, s6, s7, y_filter_0_7, max); | 
 |       uint16x4_t d3 = | 
 |           highbd_convolve6_4_y(s3, s4, s5, s6, s7, s8, y_filter_0_7, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s0 = s4; | 
 |       s1 = s5; | 
 |       s2 = s6; | 
 |       s3 = s7; | 
 |       s4 = s8; | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |     // Width is a multiple of 8 and height is a multiple of 4. | 
 |     do { | 
 |       int height = h; | 
 |       const int16_t *s = (const int16_t *)(src_ptr + src_stride); | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       int16x8_t s0, s1, s2, s3, s4; | 
 |       load_s16_8x5(s, src_stride, &s0, &s1, &s2, &s3, &s4); | 
 |       s += 5 * src_stride; | 
 |  | 
 |       do { | 
 |         int16x8_t s5, s6, s7, s8; | 
 |         load_s16_8x4(s, src_stride, &s5, &s6, &s7, &s8); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter_0_7, max); | 
 |         uint16x8_t d1 = | 
 |             highbd_convolve6_8_y(s1, s2, s3, s4, s5, s6, y_filter_0_7, max); | 
 |         uint16x8_t d2 = | 
 |             highbd_convolve6_8_y(s2, s3, s4, s5, s6, s7, y_filter_0_7, max); | 
 |         uint16x8_t d3 = | 
 |             highbd_convolve6_8_y(s3, s4, s5, s6, s7, s8, y_filter_0_7, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s0 = s4; | 
 |         s1 = s5; | 
 |         s2 = s6; | 
 |         s3 = s7; | 
 |         s4 = s8; | 
 |         s += 4 * src_stride; | 
 |         d += 4 * dst_stride; | 
 |         height -= 4; | 
 |       } while (height != 0); | 
 |  | 
 |       src_ptr += 8; | 
 |       dst_ptr += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve8_4_y( | 
 |     const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, | 
 |     const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, | 
 |     const int16x4_t s6, const int16x4_t s7, const int16x8_t y_filter, | 
 |     const uint16x4_t max) { | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum = vmull_lane_s16(s0, y_filter_0_3, 0); | 
 |   sum = vmlal_lane_s16(sum, s1, y_filter_0_3, 1); | 
 |   sum = vmlal_lane_s16(sum, s2, y_filter_0_3, 2); | 
 |   sum = vmlal_lane_s16(sum, s3, y_filter_0_3, 3); | 
 |   sum = vmlal_lane_s16(sum, s4, y_filter_4_7, 0); | 
 |   sum = vmlal_lane_s16(sum, s5, y_filter_4_7, 1); | 
 |   sum = vmlal_lane_s16(sum, s6, y_filter_4_7, 2); | 
 |   sum = vmlal_lane_s16(sum, s7, y_filter_4_7, 3); | 
 |  | 
 |   uint16x4_t res = vqrshrun_n_s32(sum, COMPOUND_ROUND1_BITS); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve8_8_y( | 
 |     const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, | 
 |     const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, | 
 |     const int16x8_t s6, const int16x8_t s7, const int16x8_t y_filter, | 
 |     const uint16x8_t max) { | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_0_3, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_4_7, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_4_7, 3); | 
 |  | 
 |   int32x4_t sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_0_3, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_4_7, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_4_7, 3); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqrshrun_n_s32(sum0, COMPOUND_ROUND1_BITS), | 
 |                                 vqrshrun_n_s32(sum1, COMPOUND_ROUND1_BITS)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_y_sr_8tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *y_filter_ptr, int bd) { | 
 |   const int16x8_t y_filter = vld1q_s16(y_filter_ptr); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     int16x4_t s0, s1, s2, s3, s4, s5, s6; | 
 |     load_s16_4x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); | 
 |     s += 7 * src_stride; | 
 |  | 
 |     do { | 
 |       int16x4_t s7, s8, s9, s10; | 
 |       load_s16_4x4(s, src_stride, &s7, &s8, &s9, &s10); | 
 |  | 
 |       uint16x4_t d0 = | 
 |           highbd_convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, max); | 
 |       uint16x4_t d1 = | 
 |           highbd_convolve8_4_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, max); | 
 |       uint16x4_t d2 = | 
 |           highbd_convolve8_4_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, max); | 
 |       uint16x4_t d3 = | 
 |           highbd_convolve8_4_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s0 = s4; | 
 |       s1 = s5; | 
 |       s2 = s6; | 
 |       s3 = s7; | 
 |       s4 = s8; | 
 |       s5 = s9; | 
 |       s6 = s10; | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |  | 
 |     do { | 
 |       int height = h; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       int16x8_t s0, s1, s2, s3, s4, s5, s6; | 
 |       load_s16_8x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); | 
 |       s += 7 * src_stride; | 
 |  | 
 |       do { | 
 |         int16x8_t s7, s8, s9, s10; | 
 |         load_s16_8x4(s, src_stride, &s7, &s8, &s9, &s10); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, max); | 
 |         uint16x8_t d1 = | 
 |             highbd_convolve8_8_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, max); | 
 |         uint16x8_t d2 = | 
 |             highbd_convolve8_8_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, max); | 
 |         uint16x8_t d3 = highbd_convolve8_8_y(s3, s4, s5, s6, s7, s8, s9, s10, | 
 |                                              y_filter, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s0 = s4; | 
 |         s1 = s5; | 
 |         s2 = s6; | 
 |         s3 = s7; | 
 |         s4 = s8; | 
 |         s5 = s9; | 
 |         s6 = s10; | 
 |         s += 4 * src_stride; | 
 |         d += 4 * dst_stride; | 
 |         height -= 4; | 
 |       } while (height != 0); | 
 |       src_ptr += 8; | 
 |       dst_ptr += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve12_4_y( | 
 |     const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, | 
 |     const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, | 
 |     const int16x4_t s6, const int16x4_t s7, const int16x4_t s8, | 
 |     const int16x4_t s9, const int16x4_t s10, const int16x4_t s11, | 
 |     const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11, | 
 |     const uint16x4_t max) { | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); | 
 |  | 
 |   int32x4_t sum = vmull_lane_s16(s0, y_filter_0_3, 0); | 
 |   sum = vmlal_lane_s16(sum, s1, y_filter_0_3, 1); | 
 |   sum = vmlal_lane_s16(sum, s2, y_filter_0_3, 2); | 
 |   sum = vmlal_lane_s16(sum, s3, y_filter_0_3, 3); | 
 |   sum = vmlal_lane_s16(sum, s4, y_filter_4_7, 0); | 
 |   sum = vmlal_lane_s16(sum, s5, y_filter_4_7, 1); | 
 |   sum = vmlal_lane_s16(sum, s6, y_filter_4_7, 2); | 
 |   sum = vmlal_lane_s16(sum, s7, y_filter_4_7, 3); | 
 |   sum = vmlal_lane_s16(sum, s8, y_filter_8_11, 0); | 
 |   sum = vmlal_lane_s16(sum, s9, y_filter_8_11, 1); | 
 |   sum = vmlal_lane_s16(sum, s10, y_filter_8_11, 2); | 
 |   sum = vmlal_lane_s16(sum, s11, y_filter_8_11, 3); | 
 |  | 
 |   uint16x4_t res = vqrshrun_n_s32(sum, COMPOUND_ROUND1_BITS); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve12_8_y( | 
 |     const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, | 
 |     const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, | 
 |     const int16x8_t s6, const int16x8_t s7, const int16x8_t s8, | 
 |     const int16x8_t s9, const int16x8_t s10, const int16x8_t s11, | 
 |     const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11, | 
 |     const uint16x8_t max) { | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); | 
 |  | 
 |   int32x4_t sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_0_3, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_4_7, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_4_7, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s8), y_filter_8_11, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s9), y_filter_8_11, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s10), y_filter_8_11, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s11), y_filter_8_11, 3); | 
 |  | 
 |   int32x4_t sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_0_3, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_4_7, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_4_7, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s8), y_filter_8_11, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s9), y_filter_8_11, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s10), y_filter_8_11, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s11), y_filter_8_11, 3); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqrshrun_n_s32(sum0, COMPOUND_ROUND1_BITS), | 
 |                                 vqrshrun_n_s32(sum1, COMPOUND_ROUND1_BITS)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_y_sr_12tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *y_filter_ptr, int bd) { | 
 |   const int16x8_t y_filter_0_7 = vld1q_s16(y_filter_ptr); | 
 |   const int16x4_t y_filter_8_11 = vld1_s16(y_filter_ptr + 8); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; | 
 |     load_s16_4x11(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, &s8, | 
 |                   &s9, &s10); | 
 |     s += 11 * src_stride; | 
 |  | 
 |     do { | 
 |       int16x4_t s11, s12, s13, s14; | 
 |       load_s16_4x4(s, src_stride, &s11, &s12, &s13, &s14); | 
 |  | 
 |       uint16x4_t d0 = | 
 |           highbd_convolve12_4_y(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, | 
 |                                 s11, y_filter_0_7, y_filter_8_11, max); | 
 |       uint16x4_t d1 = | 
 |           highbd_convolve12_4_y(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, | 
 |                                 s12, y_filter_0_7, y_filter_8_11, max); | 
 |       uint16x4_t d2 = | 
 |           highbd_convolve12_4_y(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, | 
 |                                 s13, y_filter_0_7, y_filter_8_11, max); | 
 |       uint16x4_t d3 = | 
 |           highbd_convolve12_4_y(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, | 
 |                                 s14, y_filter_0_7, y_filter_8_11, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s0 = s4; | 
 |       s1 = s5; | 
 |       s2 = s6; | 
 |       s3 = s7; | 
 |       s4 = s8; | 
 |       s5 = s9; | 
 |       s6 = s10; | 
 |       s7 = s11; | 
 |       s8 = s12; | 
 |       s9 = s13; | 
 |       s10 = s14; | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |  | 
 |     do { | 
 |       int height = h; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; | 
 |       load_s16_8x11(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, &s8, | 
 |                     &s9, &s10); | 
 |       s += 11 * src_stride; | 
 |  | 
 |       do { | 
 |         int16x8_t s11, s12, s13, s14; | 
 |         load_s16_8x4(s, src_stride, &s11, &s12, &s13, &s14); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve12_8_y(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, | 
 |                                   s11, y_filter_0_7, y_filter_8_11, max); | 
 |         uint16x8_t d1 = | 
 |             highbd_convolve12_8_y(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, | 
 |                                   s12, y_filter_0_7, y_filter_8_11, max); | 
 |         uint16x8_t d2 = | 
 |             highbd_convolve12_8_y(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, | 
 |                                   s13, y_filter_0_7, y_filter_8_11, max); | 
 |         uint16x8_t d3 = | 
 |             highbd_convolve12_8_y(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, | 
 |                                   s13, s14, y_filter_0_7, y_filter_8_11, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s0 = s4; | 
 |         s1 = s5; | 
 |         s2 = s6; | 
 |         s3 = s7; | 
 |         s4 = s8; | 
 |         s5 = s9; | 
 |         s6 = s10; | 
 |         s7 = s11; | 
 |         s8 = s12; | 
 |         s9 = s13; | 
 |         s10 = s14; | 
 |         s += 4 * src_stride; | 
 |         d += 4 * dst_stride; | 
 |         height -= 4; | 
 |       } while (height != 0); | 
 |  | 
 |       src_ptr += 8; | 
 |       dst_ptr += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } | 
 |  | 
 | void av1_highbd_convolve_y_sr_neon(const uint16_t *src, int src_stride, | 
 |                                    uint16_t *dst, int dst_stride, int w, int h, | 
 |                                    const InterpFilterParams *filter_params_y, | 
 |                                    const int subpel_y_qn, int bd) { | 
 |   if (w == 2 || h == 2) { | 
 |     av1_highbd_convolve_y_sr_c(src, src_stride, dst, dst_stride, w, h, | 
 |                                filter_params_y, subpel_y_qn, bd); | 
 |     return; | 
 |   } | 
 |   const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); | 
 |   const int vert_offset = filter_params_y->taps / 2 - 1; | 
 |   const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel( | 
 |       filter_params_y, subpel_y_qn & SUBPEL_MASK); | 
 |  | 
 |   src -= vert_offset * src_stride; | 
 |  | 
 |   if (y_filter_taps > 8) { | 
 |     highbd_convolve_y_sr_12tap_neon(src, src_stride, dst, dst_stride, w, h, | 
 |                                     y_filter_ptr, bd); | 
 |     return; | 
 |   } | 
 |   if (y_filter_taps < 8) { | 
 |     highbd_convolve_y_sr_6tap_neon(src, src_stride, dst, dst_stride, w, h, | 
 |                                    y_filter_ptr, bd); | 
 |     return; | 
 |   } | 
 |  | 
 |   highbd_convolve_y_sr_8tap_neon(src, src_stride, dst, dst_stride, w, h, | 
 |                                  y_filter_ptr, bd); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve6_8_x(const int16x8_t s[6], | 
 |                                               const int16x8_t x_filter, | 
 |                                               const int32x4_t offset, | 
 |                                               const uint16x8_t max) { | 
 |   // Values at indices 0 and 7 of y_filter are zero. | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter); | 
 |  | 
 |   int32x4_t sum0 = offset; | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[0]), x_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[1]), x_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[2]), x_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[3]), x_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[4]), x_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[5]), x_filter_4_7, 2); | 
 |  | 
 |   int32x4_t sum1 = offset; | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[0]), x_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[1]), x_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[2]), x_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[3]), x_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[4]), x_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[5]), x_filter_4_7, 2); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqrshrun_n_s32(sum0, FILTER_BITS), | 
 |                                 vqrshrun_n_s32(sum1, FILTER_BITS)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_x_sr_6tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *x_filter_ptr, ConvolveParams *conv_params, | 
 |     int bd) { | 
 |   const int16x8_t x_filter = vld1q_s16(x_filter_ptr); | 
 |   const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |   // This shim allows to do only one rounding shift instead of two. | 
 |   const int32x4_t offset = vdupq_n_s32(1 << (conv_params->round_0 - 1)); | 
 |  | 
 |   int height = h; | 
 |  | 
 |   do { | 
 |     int width = w; | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     do { | 
 |       int16x8_t s0[6], s1[6], s2[6], s3[6]; | 
 |       load_s16_8x6(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                    &s0[4], &s0[5]); | 
 |       load_s16_8x6(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                    &s1[4], &s1[5]); | 
 |       load_s16_8x6(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                    &s2[4], &s2[5]); | 
 |       load_s16_8x6(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                    &s3[4], &s3[5]); | 
 |  | 
 |       uint16x8_t d0 = highbd_convolve6_8_x(s0, x_filter, offset, max); | 
 |       uint16x8_t d1 = highbd_convolve6_8_x(s1, x_filter, offset, max); | 
 |       uint16x8_t d2 = highbd_convolve6_8_x(s2, x_filter, offset, max); | 
 |       uint16x8_t d3 = highbd_convolve6_8_x(s3, x_filter, offset, max); | 
 |  | 
 |       store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s += 8; | 
 |       d += 8; | 
 |       width -= 8; | 
 |     } while (width != 0); | 
 |  | 
 |     src_ptr += 4 * src_stride; | 
 |     dst_ptr += 4 * dst_stride; | 
 |     height -= 4; | 
 |   } while (height != 0); | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve4_4_x(const int16x4_t s[4], | 
 |                                               const int16x4_t x_filter, | 
 |                                               const int32x4_t offset, | 
 |                                               const uint16x4_t max) { | 
 |   int32x4_t sum = offset; | 
 |   sum = vmlal_lane_s16(sum, s[0], x_filter, 0); | 
 |   sum = vmlal_lane_s16(sum, s[1], x_filter, 1); | 
 |   sum = vmlal_lane_s16(sum, s[2], x_filter, 2); | 
 |   sum = vmlal_lane_s16(sum, s[3], x_filter, 3); | 
 |  | 
 |   uint16x4_t res = vqrshrun_n_s32(sum, FILTER_BITS); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve8_8_x(const int16x8_t s[8], | 
 |                                               const int16x8_t x_filter, | 
 |                                               const int32x4_t offset, | 
 |                                               const uint16x8_t max) { | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter); | 
 |  | 
 |   int32x4_t sum0 = offset; | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[0]), x_filter_0_3, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[1]), x_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[2]), x_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[3]), x_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[4]), x_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[5]), x_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[6]), x_filter_4_7, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[7]), x_filter_4_7, 3); | 
 |  | 
 |   int32x4_t sum1 = offset; | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[0]), x_filter_0_3, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[1]), x_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[2]), x_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[3]), x_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[4]), x_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[5]), x_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[6]), x_filter_4_7, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[7]), x_filter_4_7, 3); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqrshrun_n_s32(sum0, FILTER_BITS), | 
 |                                 vqrshrun_n_s32(sum1, FILTER_BITS)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_x_sr_neon(const uint16_t *src_ptr, | 
 |                                              int src_stride, uint16_t *dst_ptr, | 
 |                                              int dst_stride, int w, int h, | 
 |                                              const int16_t *x_filter_ptr, | 
 |                                              ConvolveParams *conv_params, | 
 |                                              int bd) { | 
 |   // This shim allows to do only one rounding shift instead of two. | 
 |   const int32x4_t offset = vdupq_n_s32(1 << (conv_params->round_0 - 1)); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     // 4-tap filters are used for blocks having width == 4. | 
 |     const int16x4_t x_filter = vld1_s16(x_filter_ptr + 2); | 
 |     const int16_t *s = (const int16_t *)(src_ptr + 2); | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     do { | 
 |       int16x4_t s0[4], s1[4], s2[4], s3[4]; | 
 |       load_s16_4x4(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3]); | 
 |       load_s16_4x4(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3]); | 
 |       load_s16_4x4(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3]); | 
 |       load_s16_4x4(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3]); | 
 |  | 
 |       uint16x4_t d0 = highbd_convolve4_4_x(s0, x_filter, offset, max); | 
 |       uint16x4_t d1 = highbd_convolve4_4_x(s1, x_filter, offset, max); | 
 |       uint16x4_t d2 = highbd_convolve4_4_x(s2, x_filter, offset, max); | 
 |       uint16x4_t d3 = highbd_convolve4_4_x(s3, x_filter, offset, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |     const int16x8_t x_filter = vld1q_s16(x_filter_ptr); | 
 |     int height = h; | 
 |  | 
 |     do { | 
 |       int width = w; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       do { | 
 |         int16x8_t s0[8], s1[8], s2[8], s3[8]; | 
 |         load_s16_8x8(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                      &s0[4], &s0[5], &s0[6], &s0[7]); | 
 |         load_s16_8x8(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                      &s1[4], &s1[5], &s1[6], &s1[7]); | 
 |         load_s16_8x8(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                      &s2[4], &s2[5], &s2[6], &s2[7]); | 
 |         load_s16_8x8(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                      &s3[4], &s3[5], &s3[6], &s3[7]); | 
 |  | 
 |         uint16x8_t d0 = highbd_convolve8_8_x(s0, x_filter, offset, max); | 
 |         uint16x8_t d1 = highbd_convolve8_8_x(s1, x_filter, offset, max); | 
 |         uint16x8_t d2 = highbd_convolve8_8_x(s2, x_filter, offset, max); | 
 |         uint16x8_t d3 = highbd_convolve8_8_x(s3, x_filter, offset, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s += 8; | 
 |         d += 8; | 
 |         width -= 8; | 
 |       } while (width != 0); | 
 |       src_ptr += 4 * src_stride; | 
 |       dst_ptr += 4 * dst_stride; | 
 |       height -= 4; | 
 |     } while (height != 0); | 
 |   } | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve12_4_x(const int16x4_t s[12], | 
 |                                                const int16x8_t x_filter_0_7, | 
 |                                                const int16x4_t x_filter_8_11, | 
 |                                                const int32x4_t offset, | 
 |                                                const uint16x4_t max) { | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter_0_7); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter_0_7); | 
 |  | 
 |   int32x4_t sum = offset; | 
 |   sum = vmlal_lane_s16(sum, s[0], x_filter_0_3, 0); | 
 |   sum = vmlal_lane_s16(sum, s[1], x_filter_0_3, 1); | 
 |   sum = vmlal_lane_s16(sum, s[2], x_filter_0_3, 2); | 
 |   sum = vmlal_lane_s16(sum, s[3], x_filter_0_3, 3); | 
 |   sum = vmlal_lane_s16(sum, s[4], x_filter_4_7, 0); | 
 |   sum = vmlal_lane_s16(sum, s[5], x_filter_4_7, 1); | 
 |   sum = vmlal_lane_s16(sum, s[6], x_filter_4_7, 2); | 
 |   sum = vmlal_lane_s16(sum, s[7], x_filter_4_7, 3); | 
 |   sum = vmlal_lane_s16(sum, s[8], x_filter_8_11, 0); | 
 |   sum = vmlal_lane_s16(sum, s[9], x_filter_8_11, 1); | 
 |   sum = vmlal_lane_s16(sum, s[10], x_filter_8_11, 2); | 
 |   sum = vmlal_lane_s16(sum, s[11], x_filter_8_11, 3); | 
 |  | 
 |   uint16x4_t res = vqrshrun_n_s32(sum, FILTER_BITS); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve12_8_x(const int16x8_t s[12], | 
 |                                                const int16x8_t x_filter_0_7, | 
 |                                                const int16x4_t x_filter_8_11, | 
 |                                                const int32x4_t offset, | 
 |                                                const uint16x8_t max) { | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter_0_7); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter_0_7); | 
 |  | 
 |   int32x4_t sum0 = offset; | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[0]), x_filter_0_3, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[1]), x_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[2]), x_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[3]), x_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[4]), x_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[5]), x_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[6]), x_filter_4_7, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[7]), x_filter_4_7, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[8]), x_filter_8_11, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[9]), x_filter_8_11, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[10]), x_filter_8_11, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[11]), x_filter_8_11, 3); | 
 |  | 
 |   int32x4_t sum1 = offset; | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[0]), x_filter_0_3, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[1]), x_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[2]), x_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[3]), x_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[4]), x_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[5]), x_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[6]), x_filter_4_7, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[7]), x_filter_4_7, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[8]), x_filter_8_11, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[9]), x_filter_8_11, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[10]), x_filter_8_11, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[11]), x_filter_8_11, 3); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqrshrun_n_s32(sum0, FILTER_BITS), | 
 |                                 vqrshrun_n_s32(sum1, FILTER_BITS)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_x_sr_12tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *x_filter_ptr, ConvolveParams *conv_params, | 
 |     int bd) { | 
 |   // This shim allows to do only one rounding shift instead of two. | 
 |   const int32x4_t offset = vdupq_n_s32(1 << (conv_params->round_0 - 1)); | 
 |   const int16x8_t x_filter_0_7 = vld1q_s16(x_filter_ptr); | 
 |   const int16x4_t x_filter_8_11 = vld1_s16(x_filter_ptr + 8); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     do { | 
 |       int16x4_t s0[12], s1[12], s2[12], s3[12]; | 
 |       load_s16_4x12(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                     &s0[4], &s0[5], &s0[6], &s0[7], &s0[8], &s0[9], &s0[10], | 
 |                     &s0[11]); | 
 |       load_s16_4x12(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                     &s1[4], &s1[5], &s1[6], &s1[7], &s1[8], &s1[9], &s1[10], | 
 |                     &s1[11]); | 
 |       load_s16_4x12(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                     &s2[4], &s2[5], &s2[6], &s2[7], &s2[8], &s2[9], &s2[10], | 
 |                     &s2[11]); | 
 |       load_s16_4x12(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                     &s3[4], &s3[5], &s3[6], &s3[7], &s3[8], &s3[9], &s3[10], | 
 |                     &s3[11]); | 
 |  | 
 |       uint16x4_t d0 = | 
 |           highbd_convolve12_4_x(s0, x_filter_0_7, x_filter_8_11, offset, max); | 
 |       uint16x4_t d1 = | 
 |           highbd_convolve12_4_x(s1, x_filter_0_7, x_filter_8_11, offset, max); | 
 |       uint16x4_t d2 = | 
 |           highbd_convolve12_4_x(s2, x_filter_0_7, x_filter_8_11, offset, max); | 
 |       uint16x4_t d3 = | 
 |           highbd_convolve12_4_x(s3, x_filter_0_7, x_filter_8_11, offset, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |     int height = h; | 
 |  | 
 |     do { | 
 |       int width = w; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       do { | 
 |         int16x8_t s0[12], s1[12], s2[12], s3[12]; | 
 |         load_s16_8x12(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                       &s0[4], &s0[5], &s0[6], &s0[7], &s0[8], &s0[9], &s0[10], | 
 |                       &s0[11]); | 
 |         load_s16_8x12(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                       &s1[4], &s1[5], &s1[6], &s1[7], &s1[8], &s1[9], &s1[10], | 
 |                       &s1[11]); | 
 |         load_s16_8x12(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                       &s2[4], &s2[5], &s2[6], &s2[7], &s2[8], &s2[9], &s2[10], | 
 |                       &s2[11]); | 
 |         load_s16_8x12(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                       &s3[4], &s3[5], &s3[6], &s3[7], &s3[8], &s3[9], &s3[10], | 
 |                       &s3[11]); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve12_8_x(s0, x_filter_0_7, x_filter_8_11, offset, max); | 
 |         uint16x8_t d1 = | 
 |             highbd_convolve12_8_x(s1, x_filter_0_7, x_filter_8_11, offset, max); | 
 |         uint16x8_t d2 = | 
 |             highbd_convolve12_8_x(s2, x_filter_0_7, x_filter_8_11, offset, max); | 
 |         uint16x8_t d3 = | 
 |             highbd_convolve12_8_x(s3, x_filter_0_7, x_filter_8_11, offset, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s += 8; | 
 |         d += 8; | 
 |         width -= 8; | 
 |       } while (width != 0); | 
 |       src_ptr += 4 * src_stride; | 
 |       dst_ptr += 4 * dst_stride; | 
 |       height -= 4; | 
 |     } while (height != 0); | 
 |   } | 
 | } | 
 |  | 
 | void av1_highbd_convolve_x_sr_neon(const uint16_t *src, int src_stride, | 
 |                                    uint16_t *dst, int dst_stride, int w, int h, | 
 |                                    const InterpFilterParams *filter_params_x, | 
 |                                    const int subpel_x_qn, | 
 |                                    ConvolveParams *conv_params, int bd) { | 
 |   if (w == 2 || h == 2) { | 
 |     av1_highbd_convolve_x_sr_c(src, src_stride, dst, dst_stride, w, h, | 
 |                                filter_params_x, subpel_x_qn, conv_params, bd); | 
 |     return; | 
 |   } | 
 |   const int x_filter_taps = get_filter_tap(filter_params_x, subpel_x_qn); | 
 |   const int horiz_offset = filter_params_x->taps / 2 - 1; | 
 |   const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( | 
 |       filter_params_x, subpel_x_qn & SUBPEL_MASK); | 
 |  | 
 |   src -= horiz_offset; | 
 |  | 
 |   if (x_filter_taps > 8) { | 
 |     highbd_convolve_x_sr_12tap_neon(src, src_stride, dst, dst_stride, w, h, | 
 |                                     x_filter_ptr, conv_params, bd); | 
 |     return; | 
 |   } | 
 |   if (x_filter_taps <= 6 && w != 4) { | 
 |     highbd_convolve_x_sr_6tap_neon(src + 1, src_stride, dst, dst_stride, w, h, | 
 |                                    x_filter_ptr, conv_params, bd); | 
 |     return; | 
 |   } | 
 |  | 
 |   highbd_convolve_x_sr_neon(src, src_stride, dst, dst_stride, w, h, | 
 |                             x_filter_ptr, conv_params, bd); | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve6_4_2d_v( | 
 |     const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, | 
 |     const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, | 
 |     const int16x8_t y_filter, const int32x4_t round_shift, | 
 |     const int32x4_t offset, const uint16x4_t max) { | 
 |   // Values at indices 0 and 7 of y_filter are zero. | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum = vmlal_lane_s16(offset, s0, y_filter_0_3, 1); | 
 |   sum = vmlal_lane_s16(sum, s1, y_filter_0_3, 2); | 
 |   sum = vmlal_lane_s16(sum, s2, y_filter_0_3, 3); | 
 |   sum = vmlal_lane_s16(sum, s3, y_filter_4_7, 0); | 
 |   sum = vmlal_lane_s16(sum, s4, y_filter_4_7, 1); | 
 |   sum = vmlal_lane_s16(sum, s5, y_filter_4_7, 2); | 
 |  | 
 |   sum = vshlq_s32(sum, round_shift); | 
 |   uint16x4_t res = vqmovun_s32(sum); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve6_8_2d_v( | 
 |     const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, | 
 |     const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, | 
 |     const int16x8_t y_filter, const int32x4_t round_shift, | 
 |     const int32x4_t offset, const uint16x8_t max) { | 
 |   // Values at indices 0 and 7 of y_filter are zero. | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum0 = vmlal_lane_s16(offset, vget_low_s16(s0), y_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_4_7, 2); | 
 |  | 
 |   int32x4_t sum1 = vmlal_lane_s16(offset, vget_high_s16(s0), y_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_4_7, 2); | 
 |  | 
 |   sum0 = vshlq_s32(sum0, round_shift); | 
 |   sum1 = vshlq_s32(sum1, round_shift); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqmovun_s32(sum0), vqmovun_s32(sum1)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_2d_sr_vert_6tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *y_filter_ptr, ConvolveParams *conv_params, | 
 |     int bd, const int offset) { | 
 |   const int16x8_t y_filter = vld1q_s16(y_filter_ptr); | 
 |   const int32x4_t offset_s32 = vdupq_n_s32(offset); | 
 |   const int round1_shift = conv_params->round_1; | 
 |   const int32x4_t round1_shift_s32 = vdupq_n_s32(-round1_shift); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |     int16x4_t s0, s1, s2, s3, s4; | 
 |     load_s16_4x5(s, src_stride, &s0, &s1, &s2, &s3, &s4); | 
 |     s += 5 * src_stride; | 
 |  | 
 |     do { | 
 |       int16x4_t s5, s6, s7, s8; | 
 |       load_s16_4x4(s, src_stride, &s5, &s6, &s7, &s8); | 
 |  | 
 |       uint16x4_t d0 = highbd_convolve6_4_2d_v( | 
 |           s0, s1, s2, s3, s4, s5, y_filter, round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d1 = highbd_convolve6_4_2d_v( | 
 |           s1, s2, s3, s4, s5, s6, y_filter, round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d2 = highbd_convolve6_4_2d_v( | 
 |           s2, s3, s4, s5, s6, s7, y_filter, round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d3 = highbd_convolve6_4_2d_v( | 
 |           s3, s4, s5, s6, s7, s8, y_filter, round1_shift_s32, offset_s32, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s0 = s4; | 
 |       s1 = s5; | 
 |       s2 = s6; | 
 |       s3 = s7; | 
 |       s4 = s8; | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |  | 
 |     do { | 
 |       int height = h; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |       int16x8_t s0, s1, s2, s3, s4; | 
 |       load_s16_8x5(s, src_stride, &s0, &s1, &s2, &s3, &s4); | 
 |       s += 5 * src_stride; | 
 |  | 
 |       do { | 
 |         int16x8_t s5, s6, s7, s8; | 
 |         load_s16_8x4(s, src_stride, &s5, &s6, &s7, &s8); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve6_8_2d_v(s0, s1, s2, s3, s4, s5, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d1 = | 
 |             highbd_convolve6_8_2d_v(s1, s2, s3, s4, s5, s6, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d2 = | 
 |             highbd_convolve6_8_2d_v(s2, s3, s4, s5, s6, s7, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d3 = | 
 |             highbd_convolve6_8_2d_v(s3, s4, s5, s6, s7, s8, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s0 = s4; | 
 |         s1 = s5; | 
 |         s2 = s6; | 
 |         s3 = s7; | 
 |         s4 = s8; | 
 |         s += 4 * src_stride; | 
 |         d += 4 * dst_stride; | 
 |         height -= 4; | 
 |       } while (height != 0); | 
 |       src_ptr += 8; | 
 |       dst_ptr += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve8_4_2d_v( | 
 |     const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, | 
 |     const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, | 
 |     const int16x4_t s6, const int16x4_t s7, const int16x8_t y_filter, | 
 |     const int32x4_t round_shift, const int32x4_t offset, const uint16x4_t max) { | 
 |   const int16x4_t y_filter_lo = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_hi = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum = vmlal_lane_s16(offset, s0, y_filter_lo, 0); | 
 |   sum = vmlal_lane_s16(sum, s1, y_filter_lo, 1); | 
 |   sum = vmlal_lane_s16(sum, s2, y_filter_lo, 2); | 
 |   sum = vmlal_lane_s16(sum, s3, y_filter_lo, 3); | 
 |   sum = vmlal_lane_s16(sum, s4, y_filter_hi, 0); | 
 |   sum = vmlal_lane_s16(sum, s5, y_filter_hi, 1); | 
 |   sum = vmlal_lane_s16(sum, s6, y_filter_hi, 2); | 
 |   sum = vmlal_lane_s16(sum, s7, y_filter_hi, 3); | 
 |  | 
 |   sum = vshlq_s32(sum, round_shift); | 
 |   uint16x4_t res = vqmovun_s32(sum); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve8_8_2d_v( | 
 |     const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, | 
 |     const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, | 
 |     const int16x8_t s6, const int16x8_t s7, const int16x8_t y_filter, | 
 |     const int32x4_t round_shift, const int32x4_t offset, const uint16x8_t max) { | 
 |   const int16x4_t y_filter_lo = vget_low_s16(y_filter); | 
 |   const int16x4_t y_filter_hi = vget_high_s16(y_filter); | 
 |  | 
 |   int32x4_t sum0 = vmlal_lane_s16(offset, vget_low_s16(s0), y_filter_lo, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_lo, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_lo, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_lo, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_hi, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_hi, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_hi, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_hi, 3); | 
 |  | 
 |   int32x4_t sum1 = vmlal_lane_s16(offset, vget_high_s16(s0), y_filter_lo, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_lo, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_lo, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_lo, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_hi, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_hi, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_hi, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_hi, 3); | 
 |  | 
 |   sum0 = vshlq_s32(sum0, round_shift); | 
 |   sum1 = vshlq_s32(sum1, round_shift); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqmovun_s32(sum0), vqmovun_s32(sum1)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_2d_sr_vert_8tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *y_filter_ptr, ConvolveParams *conv_params, | 
 |     int bd, const int offset) { | 
 |   const int16x8_t y_filter = vld1q_s16(y_filter_ptr); | 
 |   const int32x4_t offset_s32 = vdupq_n_s32(offset); | 
 |   const int round1_shift = conv_params->round_1; | 
 |   const int32x4_t round1_shift_s32 = vdupq_n_s32(-round1_shift); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     int16x4_t s0, s1, s2, s3, s4, s5, s6; | 
 |     load_s16_4x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); | 
 |     s += 7 * src_stride; | 
 |  | 
 |     do { | 
 |       int16x4_t s7, s8, s9, s10; | 
 |       load_s16_4x4(s, src_stride, &s7, &s8, &s9, &s10); | 
 |  | 
 |       uint16x4_t d0 = | 
 |           highbd_convolve8_4_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, | 
 |                                   round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d1 = | 
 |           highbd_convolve8_4_2d_v(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, | 
 |                                   round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d2 = | 
 |           highbd_convolve8_4_2d_v(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, | 
 |                                   round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d3 = | 
 |           highbd_convolve8_4_2d_v(s3, s4, s5, s6, s7, s8, s9, s10, y_filter, | 
 |                                   round1_shift_s32, offset_s32, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s0 = s4; | 
 |       s1 = s5; | 
 |       s2 = s6; | 
 |       s3 = s7; | 
 |       s4 = s8; | 
 |       s5 = s9; | 
 |       s6 = s10; | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |  | 
 |     do { | 
 |       int height = h; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       int16x8_t s0, s1, s2, s3, s4, s5, s6; | 
 |       load_s16_8x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); | 
 |       s += 7 * src_stride; | 
 |  | 
 |       do { | 
 |         int16x8_t s7, s8, s9, s10; | 
 |         load_s16_8x4(s, src_stride, &s7, &s8, &s9, &s10); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve8_8_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d1 = | 
 |             highbd_convolve8_8_2d_v(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d2 = | 
 |             highbd_convolve8_8_2d_v(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d3 = | 
 |             highbd_convolve8_8_2d_v(s3, s4, s5, s6, s7, s8, s9, s10, y_filter, | 
 |                                     round1_shift_s32, offset_s32, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s0 = s4; | 
 |         s1 = s5; | 
 |         s2 = s6; | 
 |         s3 = s7; | 
 |         s4 = s8; | 
 |         s5 = s9; | 
 |         s6 = s10; | 
 |         s += 4 * src_stride; | 
 |         d += 4 * dst_stride; | 
 |         height -= 4; | 
 |       } while (height != 0); | 
 |       src_ptr += 8; | 
 |       dst_ptr += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve12_4_2d_v( | 
 |     const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, | 
 |     const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, | 
 |     const int16x4_t s6, const int16x4_t s7, const int16x4_t s8, | 
 |     const int16x4_t s9, const int16x4_t s10, const int16x4_t s11, | 
 |     const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11, | 
 |     const int32x4_t round_shift, const int32x4_t offset, const uint16x4_t max) { | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); | 
 |  | 
 |   int32x4_t sum = vmlal_lane_s16(offset, s0, y_filter_0_3, 0); | 
 |   sum = vmlal_lane_s16(sum, s1, y_filter_0_3, 1); | 
 |   sum = vmlal_lane_s16(sum, s2, y_filter_0_3, 2); | 
 |   sum = vmlal_lane_s16(sum, s3, y_filter_0_3, 3); | 
 |   sum = vmlal_lane_s16(sum, s4, y_filter_4_7, 0); | 
 |   sum = vmlal_lane_s16(sum, s5, y_filter_4_7, 1); | 
 |   sum = vmlal_lane_s16(sum, s6, y_filter_4_7, 2); | 
 |   sum = vmlal_lane_s16(sum, s7, y_filter_4_7, 3); | 
 |   sum = vmlal_lane_s16(sum, s8, y_filter_8_11, 0); | 
 |   sum = vmlal_lane_s16(sum, s9, y_filter_8_11, 1); | 
 |   sum = vmlal_lane_s16(sum, s10, y_filter_8_11, 2); | 
 |   sum = vmlal_lane_s16(sum, s11, y_filter_8_11, 3); | 
 |  | 
 |   sum = vshlq_s32(sum, round_shift); | 
 |   uint16x4_t res = vqmovun_s32(sum); | 
 |   return vmin_u16(res, max); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve12_8_2d_v( | 
 |     const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, | 
 |     const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, | 
 |     const int16x8_t s6, const int16x8_t s7, const int16x8_t s8, | 
 |     const int16x8_t s9, const int16x8_t s10, const int16x8_t s11, | 
 |     const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11, | 
 |     const int32x4_t round_shift, const int32x4_t offset, const uint16x8_t max) { | 
 |   const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); | 
 |   const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); | 
 |  | 
 |   int32x4_t sum0 = vmlal_lane_s16(offset, vget_low_s16(s0), y_filter_0_3, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_4_7, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_4_7, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s8), y_filter_8_11, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s9), y_filter_8_11, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s10), y_filter_8_11, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s11), y_filter_8_11, 3); | 
 |  | 
 |   int32x4_t sum1 = vmlal_lane_s16(offset, vget_high_s16(s0), y_filter_0_3, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_4_7, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_4_7, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s8), y_filter_8_11, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s9), y_filter_8_11, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s10), y_filter_8_11, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s11), y_filter_8_11, 3); | 
 |  | 
 |   sum0 = vshlq_s32(sum0, round_shift); | 
 |   sum1 = vshlq_s32(sum1, round_shift); | 
 |  | 
 |   uint16x8_t res = vcombine_u16(vqmovun_s32(sum0), vqmovun_s32(sum1)); | 
 |   return vminq_u16(res, max); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_2d_sr_vert_12tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *y_filter_ptr, ConvolveParams *conv_params, | 
 |     const int bd, const int offset) { | 
 |   const int16x8_t y_filter_0_7 = vld1q_s16(y_filter_ptr); | 
 |   const int16x4_t y_filter_8_11 = vld1_s16(y_filter_ptr + 8); | 
 |   const int32x4_t offset_s32 = vdupq_n_s32(offset); | 
 |   const int round1_shift = conv_params->round_1; | 
 |   const int32x4_t round1_shift_s32 = vdupq_n_s32(-round1_shift); | 
 |  | 
 |   if (w == 4) { | 
 |     const uint16x4_t max = vdup_n_u16((1 << bd) - 1); | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; | 
 |     load_s16_4x11(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, &s8, | 
 |                   &s9, &s10); | 
 |     s += 11 * src_stride; | 
 |  | 
 |     do { | 
 |       int16x4_t s11, s12, s13, s14; | 
 |       load_s16_4x4(s, src_stride, &s11, &s12, &s13, &s14); | 
 |  | 
 |       uint16x4_t d0 = highbd_convolve12_4_2d_v( | 
 |           s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, y_filter_0_7, | 
 |           y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d1 = highbd_convolve12_4_2d_v( | 
 |           s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, y_filter_0_7, | 
 |           y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d2 = highbd_convolve12_4_2d_v( | 
 |           s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, y_filter_0_7, | 
 |           y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |       uint16x4_t d3 = highbd_convolve12_4_2d_v( | 
 |           s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, y_filter_0_7, | 
 |           y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s0 = s4; | 
 |       s1 = s5; | 
 |       s2 = s6; | 
 |       s3 = s7; | 
 |       s4 = s8; | 
 |       s5 = s9; | 
 |       s6 = s10; | 
 |       s7 = s11; | 
 |       s8 = s12; | 
 |       s9 = s13; | 
 |       s10 = s14; | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h != 0); | 
 |   } else { | 
 |     const uint16x8_t max = vdupq_n_u16((1 << bd) - 1); | 
 |  | 
 |     do { | 
 |       int height = h; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; | 
 |       load_s16_8x11(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, &s8, | 
 |                     &s9, &s10); | 
 |       s += 11 * src_stride; | 
 |  | 
 |       do { | 
 |         int16x8_t s11, s12, s13, s14; | 
 |         load_s16_8x4(s, src_stride, &s11, &s12, &s13, &s14); | 
 |  | 
 |         uint16x8_t d0 = highbd_convolve12_8_2d_v( | 
 |             s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, y_filter_0_7, | 
 |             y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d1 = highbd_convolve12_8_2d_v( | 
 |             s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, y_filter_0_7, | 
 |             y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d2 = highbd_convolve12_8_2d_v( | 
 |             s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, y_filter_0_7, | 
 |             y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |         uint16x8_t d3 = highbd_convolve12_8_2d_v( | 
 |             s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, y_filter_0_7, | 
 |             y_filter_8_11, round1_shift_s32, offset_s32, max); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s0 = s4; | 
 |         s1 = s5; | 
 |         s2 = s6; | 
 |         s3 = s7; | 
 |         s4 = s8; | 
 |         s5 = s9; | 
 |         s6 = s10; | 
 |         s7 = s11; | 
 |         s8 = s12; | 
 |         s9 = s13; | 
 |         s10 = s14; | 
 |         s += 4 * src_stride; | 
 |         d += 4 * dst_stride; | 
 |         height -= 4; | 
 |       } while (height != 0); | 
 |  | 
 |       src_ptr += 8; | 
 |       dst_ptr += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve6_8_2d_h(const int16x8_t s[6], | 
 |                                                  const int16x8_t x_filter, | 
 |                                                  const int32x4_t shift_s32, | 
 |                                                  const int32x4_t offset) { | 
 |   // Values at indices 0 and 7 of y_filter are zero. | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter); | 
 |  | 
 |   int32x4_t sum0 = vmlal_lane_s16(offset, vget_low_s16(s[0]), x_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[1]), x_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[2]), x_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[3]), x_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[4]), x_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[5]), x_filter_4_7, 2); | 
 |  | 
 |   int32x4_t sum1 = vmlal_lane_s16(offset, vget_high_s16(s[0]), x_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[1]), x_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[2]), x_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[3]), x_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[4]), x_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[5]), x_filter_4_7, 2); | 
 |  | 
 |   sum0 = vqrshlq_s32(sum0, shift_s32); | 
 |   sum1 = vqrshlq_s32(sum1, shift_s32); | 
 |  | 
 |   return vcombine_u16(vqmovun_s32(sum0), vqmovun_s32(sum1)); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_2d_sr_horiz_6tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *x_filter_ptr, ConvolveParams *conv_params, | 
 |     const int offset) { | 
 |   // The smallest block height processed by the SIMD functions is 4, and the | 
 |   // horizontal convolution needs to process an extra (filter_taps/2 - 1) lines | 
 |   // for the vertical convolution. | 
 |   assert(h >= 5); | 
 |   const int32x4_t shift_s32 = vdupq_n_s32(-conv_params->round_0); | 
 |   const int32x4_t offset_s32 = vdupq_n_s32(offset); | 
 |  | 
 |   const int16x8_t x_filter = vld1q_s16(x_filter_ptr); | 
 |   int height = h; | 
 |  | 
 |   do { | 
 |     int width = w; | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     do { | 
 |       int16x8_t s0[6], s1[6], s2[6], s3[6]; | 
 |       load_s16_8x6(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                    &s0[4], &s0[5]); | 
 |       load_s16_8x6(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                    &s1[4], &s1[5]); | 
 |       load_s16_8x6(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                    &s2[4], &s2[5]); | 
 |       load_s16_8x6(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                    &s3[4], &s3[5]); | 
 |  | 
 |       uint16x8_t d0 = | 
 |           highbd_convolve6_8_2d_h(s0, x_filter, shift_s32, offset_s32); | 
 |       uint16x8_t d1 = | 
 |           highbd_convolve6_8_2d_h(s1, x_filter, shift_s32, offset_s32); | 
 |       uint16x8_t d2 = | 
 |           highbd_convolve6_8_2d_h(s2, x_filter, shift_s32, offset_s32); | 
 |       uint16x8_t d3 = | 
 |           highbd_convolve6_8_2d_h(s3, x_filter, shift_s32, offset_s32); | 
 |  | 
 |       store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s += 8; | 
 |       d += 8; | 
 |       width -= 8; | 
 |     } while (width != 0); | 
 |     src_ptr += 4 * src_stride; | 
 |     dst_ptr += 4 * dst_stride; | 
 |     height -= 4; | 
 |   } while (height > 4); | 
 |   do { | 
 |     int width = w; | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     do { | 
 |       int16x8_t s0[6]; | 
 |       load_s16_8x6(s, 1, &s0[0], &s0[1], &s0[2], &s0[3], &s0[4], &s0[5]); | 
 |  | 
 |       uint16x8_t d0 = | 
 |           highbd_convolve6_8_2d_h(s0, x_filter, shift_s32, offset_s32); | 
 |       vst1q_u16(d, d0); | 
 |  | 
 |       s += 8; | 
 |       d += 8; | 
 |       width -= 8; | 
 |     } while (width != 0); | 
 |     src_ptr += src_stride; | 
 |     dst_ptr += dst_stride; | 
 |   } while (--height != 0); | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve4_4_2d_h(const int16x4_t s[4], | 
 |                                                  const int16x4_t x_filter, | 
 |                                                  const int32x4_t shift_s32, | 
 |                                                  const int32x4_t offset) { | 
 |   int32x4_t sum = vmlal_lane_s16(offset, s[0], x_filter, 0); | 
 |   sum = vmlal_lane_s16(sum, s[1], x_filter, 1); | 
 |   sum = vmlal_lane_s16(sum, s[2], x_filter, 2); | 
 |   sum = vmlal_lane_s16(sum, s[3], x_filter, 3); | 
 |  | 
 |   sum = vqrshlq_s32(sum, shift_s32); | 
 |   return vqmovun_s32(sum); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve8_8_2d_h(const int16x8_t s[8], | 
 |                                                  const int16x8_t x_filter, | 
 |                                                  const int32x4_t shift_s32, | 
 |                                                  const int32x4_t offset) { | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter); | 
 |  | 
 |   int32x4_t sum0 = vmlal_lane_s16(offset, vget_low_s16(s[0]), x_filter_0_3, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[1]), x_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[2]), x_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[3]), x_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[4]), x_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[5]), x_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[6]), x_filter_4_7, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[7]), x_filter_4_7, 3); | 
 |  | 
 |   int32x4_t sum1 = vmlal_lane_s16(offset, vget_high_s16(s[0]), x_filter_0_3, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[1]), x_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[2]), x_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[3]), x_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[4]), x_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[5]), x_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[6]), x_filter_4_7, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[7]), x_filter_4_7, 3); | 
 |  | 
 |   sum0 = vqrshlq_s32(sum0, shift_s32); | 
 |   sum1 = vqrshlq_s32(sum1, shift_s32); | 
 |  | 
 |   return vcombine_u16(vqmovun_s32(sum0), vqmovun_s32(sum1)); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_2d_sr_horiz_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *x_filter_ptr, ConvolveParams *conv_params, | 
 |     const int offset) { | 
 |   // The smallest block height processed by the SIMD functions is 4, and the | 
 |   // horizontal convolution needs to process an extra (filter_taps/2 - 1) lines | 
 |   // for the vertical convolution. | 
 |   assert(h >= 5); | 
 |   const int32x4_t shift_s32 = vdupq_n_s32(-conv_params->round_0); | 
 |   const int32x4_t offset_s32 = vdupq_n_s32(offset); | 
 |  | 
 |   if (w == 4) { | 
 |     // 4-tap filters are used for blocks having width <= 4. | 
 |     const int16x4_t x_filter = vld1_s16(x_filter_ptr + 2); | 
 |     const int16_t *s = (const int16_t *)(src_ptr + 1); | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     do { | 
 |       int16x4_t s0[4], s1[4], s2[4], s3[4]; | 
 |       load_s16_4x4(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3]); | 
 |       load_s16_4x4(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3]); | 
 |       load_s16_4x4(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3]); | 
 |       load_s16_4x4(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3]); | 
 |  | 
 |       uint16x4_t d0 = | 
 |           highbd_convolve4_4_2d_h(s0, x_filter, shift_s32, offset_s32); | 
 |       uint16x4_t d1 = | 
 |           highbd_convolve4_4_2d_h(s1, x_filter, shift_s32, offset_s32); | 
 |       uint16x4_t d2 = | 
 |           highbd_convolve4_4_2d_h(s2, x_filter, shift_s32, offset_s32); | 
 |       uint16x4_t d3 = | 
 |           highbd_convolve4_4_2d_h(s3, x_filter, shift_s32, offset_s32); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h > 4); | 
 |  | 
 |     do { | 
 |       int16x4_t s0[4]; | 
 |       load_s16_4x4(s, 1, &s0[0], &s0[1], &s0[2], &s0[3]); | 
 |  | 
 |       uint16x4_t d0 = | 
 |           highbd_convolve4_4_2d_h(s0, x_filter, shift_s32, offset_s32); | 
 |  | 
 |       vst1_u16(d, d0); | 
 |  | 
 |       s += src_stride; | 
 |       d += dst_stride; | 
 |     } while (--h != 0); | 
 |   } else { | 
 |     const int16x8_t x_filter = vld1q_s16(x_filter_ptr); | 
 |     int height = h; | 
 |  | 
 |     do { | 
 |       int width = w; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       do { | 
 |         int16x8_t s0[8], s1[8], s2[8], s3[8]; | 
 |         load_s16_8x8(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                      &s0[4], &s0[5], &s0[6], &s0[7]); | 
 |         load_s16_8x8(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                      &s1[4], &s1[5], &s1[6], &s1[7]); | 
 |         load_s16_8x8(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                      &s2[4], &s2[5], &s2[6], &s2[7]); | 
 |         load_s16_8x8(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                      &s3[4], &s3[5], &s3[6], &s3[7]); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve8_8_2d_h(s0, x_filter, shift_s32, offset_s32); | 
 |         uint16x8_t d1 = | 
 |             highbd_convolve8_8_2d_h(s1, x_filter, shift_s32, offset_s32); | 
 |         uint16x8_t d2 = | 
 |             highbd_convolve8_8_2d_h(s2, x_filter, shift_s32, offset_s32); | 
 |         uint16x8_t d3 = | 
 |             highbd_convolve8_8_2d_h(s3, x_filter, shift_s32, offset_s32); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s += 8; | 
 |         d += 8; | 
 |         width -= 8; | 
 |       } while (width != 0); | 
 |       src_ptr += 4 * src_stride; | 
 |       dst_ptr += 4 * dst_stride; | 
 |       height -= 4; | 
 |     } while (height > 4); | 
 |  | 
 |     do { | 
 |       int width = w; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       do { | 
 |         int16x8_t s0[8]; | 
 |         load_s16_8x8(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                      &s0[4], &s0[5], &s0[6], &s0[7]); | 
 |  | 
 |         uint16x8_t d0 = | 
 |             highbd_convolve8_8_2d_h(s0, x_filter, shift_s32, offset_s32); | 
 |         vst1q_u16(d, d0); | 
 |  | 
 |         s += 8; | 
 |         d += 8; | 
 |         width -= 8; | 
 |       } while (width != 0); | 
 |       src_ptr += src_stride; | 
 |       dst_ptr += dst_stride; | 
 |     } while (--height != 0); | 
 |   } | 
 | } | 
 |  | 
 | static inline uint16x4_t highbd_convolve12_4_2d_h(const int16x4_t s[12], | 
 |                                                   const int16x8_t x_filter_0_7, | 
 |                                                   const int16x4_t x_filter_8_11, | 
 |                                                   const int32x4_t shift_s32, | 
 |                                                   const int32x4_t offset) { | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter_0_7); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter_0_7); | 
 |  | 
 |   int32x4_t sum = vmlal_lane_s16(offset, s[0], x_filter_0_3, 0); | 
 |   sum = vmlal_lane_s16(sum, s[1], x_filter_0_3, 1); | 
 |   sum = vmlal_lane_s16(sum, s[2], x_filter_0_3, 2); | 
 |   sum = vmlal_lane_s16(sum, s[3], x_filter_0_3, 3); | 
 |   sum = vmlal_lane_s16(sum, s[4], x_filter_4_7, 0); | 
 |   sum = vmlal_lane_s16(sum, s[5], x_filter_4_7, 1); | 
 |   sum = vmlal_lane_s16(sum, s[6], x_filter_4_7, 2); | 
 |   sum = vmlal_lane_s16(sum, s[7], x_filter_4_7, 3); | 
 |   sum = vmlal_lane_s16(sum, s[8], x_filter_8_11, 0); | 
 |   sum = vmlal_lane_s16(sum, s[9], x_filter_8_11, 1); | 
 |   sum = vmlal_lane_s16(sum, s[10], x_filter_8_11, 2); | 
 |   sum = vmlal_lane_s16(sum, s[11], x_filter_8_11, 3); | 
 |  | 
 |   sum = vqrshlq_s32(sum, shift_s32); | 
 |   return vqmovun_s32(sum); | 
 | } | 
 |  | 
 | static inline uint16x8_t highbd_convolve12_8_2d_h(const int16x8_t s[12], | 
 |                                                   const int16x8_t x_filter_0_7, | 
 |                                                   const int16x4_t x_filter_8_11, | 
 |                                                   const int32x4_t shift_s32, | 
 |                                                   const int32x4_t offset) { | 
 |   const int16x4_t x_filter_0_3 = vget_low_s16(x_filter_0_7); | 
 |   const int16x4_t x_filter_4_7 = vget_high_s16(x_filter_0_7); | 
 |  | 
 |   int32x4_t sum0 = vmlal_lane_s16(offset, vget_low_s16(s[0]), x_filter_0_3, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[1]), x_filter_0_3, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[2]), x_filter_0_3, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[3]), x_filter_0_3, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[4]), x_filter_4_7, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[5]), x_filter_4_7, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[6]), x_filter_4_7, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[7]), x_filter_4_7, 3); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[8]), x_filter_8_11, 0); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[9]), x_filter_8_11, 1); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[10]), x_filter_8_11, 2); | 
 |   sum0 = vmlal_lane_s16(sum0, vget_low_s16(s[11]), x_filter_8_11, 3); | 
 |  | 
 |   int32x4_t sum1 = vmlal_lane_s16(offset, vget_high_s16(s[0]), x_filter_0_3, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[1]), x_filter_0_3, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[2]), x_filter_0_3, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[3]), x_filter_0_3, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[4]), x_filter_4_7, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[5]), x_filter_4_7, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[6]), x_filter_4_7, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[7]), x_filter_4_7, 3); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[8]), x_filter_8_11, 0); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[9]), x_filter_8_11, 1); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[10]), x_filter_8_11, 2); | 
 |   sum1 = vmlal_lane_s16(sum1, vget_high_s16(s[11]), x_filter_8_11, 3); | 
 |  | 
 |   sum0 = vqrshlq_s32(sum0, shift_s32); | 
 |   sum1 = vqrshlq_s32(sum1, shift_s32); | 
 |  | 
 |   return vcombine_u16(vqmovun_s32(sum0), vqmovun_s32(sum1)); | 
 | } | 
 |  | 
 | static inline void highbd_convolve_2d_sr_horiz_12tap_neon( | 
 |     const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride, | 
 |     int w, int h, const int16_t *x_filter_ptr, ConvolveParams *conv_params, | 
 |     const int offset) { | 
 |   // The smallest block height processed by the SIMD functions is 4, and the | 
 |   // horizontal convolution needs to process an extra (filter_taps/2 - 1) lines | 
 |   // for the vertical convolution. | 
 |   assert(h >= 5); | 
 |   const int32x4_t shift_s32 = vdupq_n_s32(-conv_params->round_0); | 
 |   const int16x8_t x_filter_0_7 = vld1q_s16(x_filter_ptr); | 
 |   const int16x4_t x_filter_8_11 = vld1_s16(x_filter_ptr + 8); | 
 |   const int32x4_t offset_s32 = vdupq_n_s32(offset); | 
 |  | 
 |   if (w == 4) { | 
 |     const int16_t *s = (const int16_t *)src_ptr; | 
 |     uint16_t *d = dst_ptr; | 
 |  | 
 |     do { | 
 |       int16x4_t s0[12], s1[12], s2[12], s3[12]; | 
 |       load_s16_4x12(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                     &s0[4], &s0[5], &s0[6], &s0[7], &s0[8], &s0[9], &s0[10], | 
 |                     &s0[11]); | 
 |       load_s16_4x12(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                     &s1[4], &s1[5], &s1[6], &s1[7], &s1[8], &s1[9], &s1[10], | 
 |                     &s1[11]); | 
 |       load_s16_4x12(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                     &s2[4], &s2[5], &s2[6], &s2[7], &s2[8], &s2[9], &s2[10], | 
 |                     &s2[11]); | 
 |       load_s16_4x12(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                     &s3[4], &s3[5], &s3[6], &s3[7], &s3[8], &s3[9], &s3[10], | 
 |                     &s3[11]); | 
 |  | 
 |       uint16x4_t d0 = highbd_convolve12_4_2d_h(s0, x_filter_0_7, x_filter_8_11, | 
 |                                                shift_s32, offset_s32); | 
 |       uint16x4_t d1 = highbd_convolve12_4_2d_h(s1, x_filter_0_7, x_filter_8_11, | 
 |                                                shift_s32, offset_s32); | 
 |       uint16x4_t d2 = highbd_convolve12_4_2d_h(s2, x_filter_0_7, x_filter_8_11, | 
 |                                                shift_s32, offset_s32); | 
 |       uint16x4_t d3 = highbd_convolve12_4_2d_h(s3, x_filter_0_7, x_filter_8_11, | 
 |                                                shift_s32, offset_s32); | 
 |  | 
 |       store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |       s += 4 * src_stride; | 
 |       d += 4 * dst_stride; | 
 |       h -= 4; | 
 |     } while (h > 4); | 
 |  | 
 |     do { | 
 |       int16x4_t s0[12]; | 
 |       load_s16_4x12(s, 1, &s0[0], &s0[1], &s0[2], &s0[3], &s0[4], &s0[5], | 
 |                     &s0[6], &s0[7], &s0[8], &s0[9], &s0[10], &s0[11]); | 
 |  | 
 |       uint16x4_t d0 = highbd_convolve12_4_2d_h(s0, x_filter_0_7, x_filter_8_11, | 
 |                                                shift_s32, offset_s32); | 
 |  | 
 |       vst1_u16(d, d0); | 
 |  | 
 |       s += src_stride; | 
 |       d += dst_stride; | 
 |     } while (--h != 0); | 
 |   } else { | 
 |     int height = h; | 
 |  | 
 |     do { | 
 |       int width = w; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       do { | 
 |         int16x8_t s0[12], s1[12], s2[12], s3[12]; | 
 |         load_s16_8x12(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                       &s0[4], &s0[5], &s0[6], &s0[7], &s0[8], &s0[9], &s0[10], | 
 |                       &s0[11]); | 
 |         load_s16_8x12(s + 1 * src_stride, 1, &s1[0], &s1[1], &s1[2], &s1[3], | 
 |                       &s1[4], &s1[5], &s1[6], &s1[7], &s1[8], &s1[9], &s1[10], | 
 |                       &s1[11]); | 
 |         load_s16_8x12(s + 2 * src_stride, 1, &s2[0], &s2[1], &s2[2], &s2[3], | 
 |                       &s2[4], &s2[5], &s2[6], &s2[7], &s2[8], &s2[9], &s2[10], | 
 |                       &s2[11]); | 
 |         load_s16_8x12(s + 3 * src_stride, 1, &s3[0], &s3[1], &s3[2], &s3[3], | 
 |                       &s3[4], &s3[5], &s3[6], &s3[7], &s3[8], &s3[9], &s3[10], | 
 |                       &s3[11]); | 
 |  | 
 |         uint16x8_t d0 = highbd_convolve12_8_2d_h( | 
 |             s0, x_filter_0_7, x_filter_8_11, shift_s32, offset_s32); | 
 |         uint16x8_t d1 = highbd_convolve12_8_2d_h( | 
 |             s1, x_filter_0_7, x_filter_8_11, shift_s32, offset_s32); | 
 |         uint16x8_t d2 = highbd_convolve12_8_2d_h( | 
 |             s2, x_filter_0_7, x_filter_8_11, shift_s32, offset_s32); | 
 |         uint16x8_t d3 = highbd_convolve12_8_2d_h( | 
 |             s3, x_filter_0_7, x_filter_8_11, shift_s32, offset_s32); | 
 |  | 
 |         store_u16_8x4(d, dst_stride, d0, d1, d2, d3); | 
 |  | 
 |         s += 8; | 
 |         d += 8; | 
 |         width -= 8; | 
 |       } while (width != 0); | 
 |       src_ptr += 4 * src_stride; | 
 |       dst_ptr += 4 * dst_stride; | 
 |       height -= 4; | 
 |     } while (height > 4); | 
 |  | 
 |     do { | 
 |       int width = w; | 
 |       const int16_t *s = (const int16_t *)src_ptr; | 
 |       uint16_t *d = dst_ptr; | 
 |  | 
 |       do { | 
 |         int16x8_t s0[12]; | 
 |         load_s16_8x12(s + 0 * src_stride, 1, &s0[0], &s0[1], &s0[2], &s0[3], | 
 |                       &s0[4], &s0[5], &s0[6], &s0[7], &s0[8], &s0[9], &s0[10], | 
 |                       &s0[11]); | 
 |  | 
 |         uint16x8_t d0 = highbd_convolve12_8_2d_h( | 
 |             s0, x_filter_0_7, x_filter_8_11, shift_s32, offset_s32); | 
 |         vst1q_u16(d, d0); | 
 |  | 
 |         s += 8; | 
 |         d += 8; | 
 |         width -= 8; | 
 |       } while (width > 0); | 
 |       src_ptr += src_stride; | 
 |       dst_ptr += dst_stride; | 
 |     } while (--height != 0); | 
 |   } | 
 | } | 
 |  | 
 | void av1_highbd_convolve_2d_sr_neon(const uint16_t *src, int src_stride, | 
 |                                     uint16_t *dst, int dst_stride, int w, int h, | 
 |                                     const InterpFilterParams *filter_params_x, | 
 |                                     const InterpFilterParams *filter_params_y, | 
 |                                     const int subpel_x_qn, | 
 |                                     const int subpel_y_qn, | 
 |                                     ConvolveParams *conv_params, int bd) { | 
 |   if (w == 2 || h == 2) { | 
 |     av1_highbd_convolve_2d_sr_c(src, src_stride, dst, dst_stride, w, h, | 
 |                                 filter_params_x, filter_params_y, subpel_x_qn, | 
 |                                 subpel_y_qn, conv_params, bd); | 
 |     return; | 
 |   } | 
 |   DECLARE_ALIGNED(16, uint16_t, | 
 |                   im_block[(MAX_SB_SIZE + MAX_FILTER_TAP) * MAX_SB_SIZE]); | 
 |   const int x_filter_taps = get_filter_tap(filter_params_x, subpel_x_qn); | 
 |   const int clamped_x_taps = x_filter_taps < 6 ? 6 : x_filter_taps; | 
 |  | 
 |   const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); | 
 |   const int clamped_y_taps = y_filter_taps < 6 ? 6 : y_filter_taps; | 
 |   const int im_h = h + clamped_y_taps - 1; | 
 |   const int im_stride = MAX_SB_SIZE; | 
 |   const int vert_offset = clamped_y_taps / 2 - 1; | 
 |   const int horiz_offset = clamped_x_taps / 2 - 1; | 
 |   const int x_offset_initial = (1 << (bd + FILTER_BITS - 1)); | 
 |   const int y_offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; | 
 |   // The extra shim of (1 << (conv_params->round_1 - 1)) allows us to do a | 
 |   // simple shift left instead of a rounding saturating shift left. | 
 |   const int y_offset = | 
 |       (1 << (conv_params->round_1 - 1)) - (1 << (y_offset_bits - 1)); | 
 |  | 
 |   const uint16_t *src_ptr = src - vert_offset * src_stride - horiz_offset; | 
 |  | 
 |   const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( | 
 |       filter_params_x, subpel_x_qn & SUBPEL_MASK); | 
 |   const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel( | 
 |       filter_params_y, subpel_y_qn & SUBPEL_MASK); | 
 |  | 
 |   if (x_filter_taps > 8) { | 
 |     highbd_convolve_2d_sr_horiz_12tap_neon(src_ptr, src_stride, im_block, | 
 |                                            im_stride, w, im_h, x_filter_ptr, | 
 |                                            conv_params, x_offset_initial); | 
 |  | 
 |     highbd_convolve_2d_sr_vert_12tap_neon(im_block, im_stride, dst, dst_stride, | 
 |                                           w, h, y_filter_ptr, conv_params, bd, | 
 |                                           y_offset); | 
 |     return; | 
 |   } | 
 |   if (x_filter_taps <= 6 && w != 4) { | 
 |     highbd_convolve_2d_sr_horiz_6tap_neon(src_ptr, src_stride, im_block, | 
 |                                           im_stride, w, im_h, x_filter_ptr, | 
 |                                           conv_params, x_offset_initial); | 
 |   } else { | 
 |     highbd_convolve_2d_sr_horiz_neon(src_ptr, src_stride, im_block, im_stride, | 
 |                                      w, im_h, x_filter_ptr, conv_params, | 
 |                                      x_offset_initial); | 
 |   } | 
 |  | 
 |   if (y_filter_taps <= 6) { | 
 |     highbd_convolve_2d_sr_vert_6tap_neon(im_block, im_stride, dst, dst_stride, | 
 |                                          w, h, y_filter_ptr, conv_params, bd, | 
 |                                          y_offset); | 
 |   } else { | 
 |     highbd_convolve_2d_sr_vert_8tap_neon(im_block, im_stride, dst, dst_stride, | 
 |                                          w, h, y_filter_ptr, conv_params, bd, | 
 |                                          y_offset); | 
 |   } | 
 | } | 
 |  | 
 | // Filter used is [64, 64]. | 
 | void av1_highbd_convolve_x_sr_intrabc_neon( | 
 |     const uint16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w, | 
 |     int h, const InterpFilterParams *filter_params_x, const int subpel_x_qn, | 
 |     ConvolveParams *conv_params, int bd) { | 
 |   assert(subpel_x_qn == 8); | 
 |   assert(filter_params_x->taps == 2); | 
 |   assert((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS); | 
 |   (void)filter_params_x; | 
 |   (void)subpel_x_qn; | 
 |   (void)conv_params; | 
 |   (void)bd; | 
 |  | 
 |   if (w <= 4) { | 
 |     do { | 
 |       uint16x4_t s0 = vld1_u16(src); | 
 |       uint16x4_t s1 = vld1_u16(src + 1); | 
 |  | 
 |       uint16x4_t d0 = vrhadd_u16(s0, s1); | 
 |  | 
 |       if (w == 2) { | 
 |         store_u16_2x1(dst, d0); | 
 |       } else { | 
 |         vst1_u16(dst, d0); | 
 |       } | 
 |  | 
 |       src += src_stride; | 
 |       dst += dst_stride; | 
 |     } while (--h != 0); | 
 |   } else { | 
 |     do { | 
 |       const uint16_t *src_ptr = src; | 
 |       uint16_t *dst_ptr = dst; | 
 |       int width = w; | 
 |  | 
 |       do { | 
 |         uint16x8_t s0 = vld1q_u16(src_ptr); | 
 |         uint16x8_t s1 = vld1q_u16(src_ptr + 1); | 
 |  | 
 |         uint16x8_t d0 = vrhaddq_u16(s0, s1); | 
 |  | 
 |         vst1q_u16(dst_ptr, d0); | 
 |  | 
 |         src_ptr += 8; | 
 |         dst_ptr += 8; | 
 |         width -= 8; | 
 |       } while (width != 0); | 
 |       src += src_stride; | 
 |       dst += dst_stride; | 
 |     } while (--h != 0); | 
 |   } | 
 | } | 
 |  | 
 | // Filter used is [64, 64]. | 
 | void av1_highbd_convolve_y_sr_intrabc_neon( | 
 |     const uint16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w, | 
 |     int h, const InterpFilterParams *filter_params_y, const int subpel_y_qn, | 
 |     int bd) { | 
 |   assert(subpel_y_qn == 8); | 
 |   assert(filter_params_y->taps == 2); | 
 |   (void)filter_params_y; | 
 |   (void)subpel_y_qn; | 
 |   (void)bd; | 
 |  | 
 |   if (w <= 4) { | 
 |     do { | 
 |       uint16x4_t s0 = vld1_u16(src); | 
 |       uint16x4_t s1 = vld1_u16(src + src_stride); | 
 |  | 
 |       uint16x4_t d0 = vrhadd_u16(s0, s1); | 
 |  | 
 |       if (w == 2) { | 
 |         store_u16_2x1(dst, d0); | 
 |       } else { | 
 |         vst1_u16(dst, d0); | 
 |       } | 
 |  | 
 |       src += src_stride; | 
 |       dst += dst_stride; | 
 |     } while (--h != 0); | 
 |   } else { | 
 |     do { | 
 |       const uint16_t *src_ptr = src; | 
 |       uint16_t *dst_ptr = dst; | 
 |       int height = h; | 
 |  | 
 |       do { | 
 |         uint16x8_t s0 = vld1q_u16(src_ptr); | 
 |         uint16x8_t s1 = vld1q_u16(src_ptr + src_stride); | 
 |  | 
 |         uint16x8_t d0 = vrhaddq_u16(s0, s1); | 
 |  | 
 |         vst1q_u16(dst_ptr, d0); | 
 |  | 
 |         src_ptr += src_stride; | 
 |         dst_ptr += dst_stride; | 
 |       } while (--height != 0); | 
 |       src += 8; | 
 |       dst += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } | 
 |  | 
 | // Both horizontal and vertical passes use the same 2-tap filter: [64, 64]. | 
 | void av1_highbd_convolve_2d_sr_intrabc_neon( | 
 |     const uint16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w, | 
 |     int h, const InterpFilterParams *filter_params_x, | 
 |     const InterpFilterParams *filter_params_y, const int subpel_x_qn, | 
 |     const int subpel_y_qn, ConvolveParams *conv_params, int bd) { | 
 |   assert(subpel_x_qn == 8); | 
 |   assert(subpel_y_qn == 8); | 
 |   assert(filter_params_x->taps == 2 && filter_params_y->taps == 2); | 
 |   assert((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS); | 
 |   assert(w <= MAX_SB_SIZE && h <= MAX_SB_SIZE); | 
 |   (void)filter_params_x; | 
 |   (void)subpel_x_qn; | 
 |   (void)filter_params_y; | 
 |   (void)subpel_y_qn; | 
 |   (void)conv_params; | 
 |   (void)bd; | 
 |  | 
 |   DECLARE_ALIGNED(16, uint16_t, | 
 |                   im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]); | 
 |   int im_h = h + 1; | 
 |   int im_stride = MAX_SB_SIZE; | 
 |  | 
 |   uint16x8_t vert_offset = vdupq_n_u16(1); | 
 |  | 
 |   uint16_t *im = im_block; | 
 |  | 
 |   // Horizontal filter. | 
 |   if (w <= 4) { | 
 |     do { | 
 |       uint16x4_t s0 = vld1_u16(src); | 
 |       uint16x4_t s1 = vld1_u16(src + 1); | 
 |  | 
 |       uint16x4_t d0 = vadd_u16(s0, s1); | 
 |  | 
 |       // Safe to store the whole vector, the im buffer is big enough. | 
 |       vst1_u16(im, d0); | 
 |  | 
 |       src += src_stride; | 
 |       im += im_stride; | 
 |     } while (--im_h != 0); | 
 |   } else { | 
 |     do { | 
 |       const uint16_t *src_ptr = src; | 
 |       uint16_t *im_ptr = im; | 
 |       int width = w; | 
 |  | 
 |       do { | 
 |         uint16x8_t s0 = vld1q_u16(src_ptr); | 
 |         uint16x8_t s1 = vld1q_u16(src_ptr + 1); | 
 |  | 
 |         uint16x8_t d0 = vaddq_u16(s0, s1); | 
 |  | 
 |         vst1q_u16(im_ptr, d0); | 
 |  | 
 |         src_ptr += 8; | 
 |         im_ptr += 8; | 
 |         width -= 8; | 
 |       } while (width != 0); | 
 |       src += src_stride; | 
 |       im += im_stride; | 
 |     } while (--im_h != 0); | 
 |   } | 
 |  | 
 |   im = im_block; | 
 |  | 
 |   // Vertical filter. | 
 |   if (w <= 4) { | 
 |     do { | 
 |       uint16x4_t s0 = vld1_u16(im); | 
 |       uint16x4_t s1 = vld1_u16(im + im_stride); | 
 |  | 
 |       uint16x4_t d0 = vhadd_u16(s0, s1); | 
 |       d0 = vhadd_u16(d0, vget_low_u16(vert_offset)); | 
 |  | 
 |       if (w == 2) { | 
 |         store_u16_2x1(dst, d0); | 
 |       } else { | 
 |         vst1_u16(dst, d0); | 
 |       } | 
 |  | 
 |       im += im_stride; | 
 |       dst += dst_stride; | 
 |     } while (--h != 0); | 
 |   } else { | 
 |     do { | 
 |       uint16_t *im_ptr = im; | 
 |       uint16_t *dst_ptr = dst; | 
 |       int height = h; | 
 |  | 
 |       do { | 
 |         uint16x8_t s0 = vld1q_u16(im_ptr); | 
 |         uint16x8_t s1 = vld1q_u16(im_ptr + im_stride); | 
 |  | 
 |         uint16x8_t d0 = vhaddq_u16(s0, s1); | 
 |         d0 = vhaddq_u16(d0, vert_offset); | 
 |  | 
 |         vst1q_u16(dst_ptr, d0); | 
 |  | 
 |         im_ptr += im_stride; | 
 |         dst_ptr += dst_stride; | 
 |       } while (--height != 0); | 
 |       im += 8; | 
 |       dst += 8; | 
 |       w -= 8; | 
 |     } while (w != 0); | 
 |   } | 
 | } |