| /* | |
| * Copyright (c) 2018, 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 "warp_plane_neon.h" | |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_4x1_f4(const uint8x16_t in, | |
| int sx, int alpha) { | |
| const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); | |
| // Loading the 8 filter taps | |
| int16x8_t f[4]; | |
| load_filters_4(f, sx, alpha); | |
| int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); | |
| int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); | |
| int16x8_t m0 = vmulq_s16(f[0], in16_lo); | |
| int16x8_t m1 = vmulq_s16(f[1], vextq_s16(in16_lo, in16_hi, 1)); | |
| int16x8_t m2 = vmulq_s16(f[2], vextq_s16(in16_lo, in16_hi, 2)); | |
| int16x8_t m3 = vmulq_s16(f[3], vextq_s16(in16_lo, in16_hi, 3)); | |
| int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), | |
| vpaddlq_s16(m3) }; | |
| int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); | |
| tmp_res_low = vaddq_s32(tmp_res_low, add_const); | |
| uint16x8_t res = | |
| vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), vdup_n_u16(0)); | |
| return vreinterpretq_s16_u16(res); | |
| } | |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_8x1_f8(const uint8x16_t in, | |
| int sx, int alpha) { | |
| const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); | |
| // Loading the 8 filter taps | |
| int16x8_t f[8]; | |
| load_filters_8(f, sx, alpha); | |
| int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); | |
| int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); | |
| int16x8_t m0 = vmulq_s16(f[0], in16_lo); | |
| int16x8_t m1 = vmulq_s16(f[1], vextq_s16(in16_lo, in16_hi, 1)); | |
| int16x8_t m2 = vmulq_s16(f[2], vextq_s16(in16_lo, in16_hi, 2)); | |
| int16x8_t m3 = vmulq_s16(f[3], vextq_s16(in16_lo, in16_hi, 3)); | |
| int16x8_t m4 = vmulq_s16(f[4], vextq_s16(in16_lo, in16_hi, 4)); | |
| int16x8_t m5 = vmulq_s16(f[5], vextq_s16(in16_lo, in16_hi, 5)); | |
| int16x8_t m6 = vmulq_s16(f[6], vextq_s16(in16_lo, in16_hi, 6)); | |
| int16x8_t m7 = vmulq_s16(f[7], vextq_s16(in16_lo, in16_hi, 7)); | |
| int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), | |
| vpaddlq_s16(m3) }; | |
| int32x4_t m4567_pairs[] = { vpaddlq_s16(m4), vpaddlq_s16(m5), vpaddlq_s16(m6), | |
| vpaddlq_s16(m7) }; | |
| int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); | |
| int32x4_t tmp_res_high = horizontal_add_4d_s32x4(m4567_pairs); | |
| tmp_res_low = vaddq_s32(tmp_res_low, add_const); | |
| tmp_res_high = vaddq_s32(tmp_res_high, add_const); | |
| uint16x8_t res = vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), | |
| vqrshrun_n_s32(tmp_res_high, ROUND0_BITS)); | |
| return vreinterpretq_s16_u16(res); | |
| } | |
| static AOM_FORCE_INLINE int16x8_t | |
| horizontal_filter_4x1_f1_beta0(const uint8x16_t in, int16x8_t f_s16) { | |
| const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); | |
| int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); | |
| int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); | |
| int16x8_t m0 = vmulq_s16(f_s16, in16_lo); | |
| int16x8_t m1 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 1)); | |
| int16x8_t m2 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 2)); | |
| int16x8_t m3 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 3)); | |
| int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), | |
| vpaddlq_s16(m3) }; | |
| int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); | |
| tmp_res_low = vaddq_s32(tmp_res_low, add_const); | |
| uint16x8_t res = | |
| vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), vdup_n_u16(0)); | |
| return vreinterpretq_s16_u16(res); | |
| } | |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_4x1_f1(const uint8x16_t in, | |
| int sx) { | |
| int16x8_t f_s16 = vld1q_s16(av1_warped_filter[sx >> WARPEDDIFF_PREC_BITS]); | |
| return horizontal_filter_4x1_f1_beta0(in, f_s16); | |
| } | |
| static AOM_FORCE_INLINE int16x8_t | |
| horizontal_filter_8x1_f1_beta0(const uint8x16_t in, int16x8_t f_s16) { | |
| const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); | |
| int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); | |
| int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); | |
| int16x8_t m0 = vmulq_s16(f_s16, in16_lo); | |
| int16x8_t m1 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 1)); | |
| int16x8_t m2 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 2)); | |
| int16x8_t m3 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 3)); | |
| int16x8_t m4 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 4)); | |
| int16x8_t m5 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 5)); | |
| int16x8_t m6 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 6)); | |
| int16x8_t m7 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 7)); | |
| int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), | |
| vpaddlq_s16(m3) }; | |
| int32x4_t m4567_pairs[] = { vpaddlq_s16(m4), vpaddlq_s16(m5), vpaddlq_s16(m6), | |
| vpaddlq_s16(m7) }; | |
| int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); | |
| int32x4_t tmp_res_high = horizontal_add_4d_s32x4(m4567_pairs); | |
| tmp_res_low = vaddq_s32(tmp_res_low, add_const); | |
| tmp_res_high = vaddq_s32(tmp_res_high, add_const); | |
| uint16x8_t res = vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), | |
| vqrshrun_n_s32(tmp_res_high, ROUND0_BITS)); | |
| return vreinterpretq_s16_u16(res); | |
| } | |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_8x1_f1(const uint8x16_t in, | |
| int sx) { | |
| int16x8_t f_s16 = vld1q_s16(av1_warped_filter[sx >> WARPEDDIFF_PREC_BITS]); | |
| return horizontal_filter_8x1_f1_beta0(in, f_s16); | |
| } | |
| static AOM_FORCE_INLINE void vertical_filter_4x1_f4(const int16x8_t *src, | |
| int32x4_t *res, int sy, | |
| int gamma) { | |
| int16x8_t s0, s1, s2, s3; | |
| transpose_elems_s16_4x8( | |
| vget_low_s16(src[0]), vget_low_s16(src[1]), vget_low_s16(src[2]), | |
| vget_low_s16(src[3]), vget_low_s16(src[4]), vget_low_s16(src[5]), | |
| vget_low_s16(src[6]), vget_low_s16(src[7]), &s0, &s1, &s2, &s3); | |
| int16x8_t f[4]; | |
| load_filters_4(f, sy, gamma); | |
| int32x4_t m0 = vmull_s16(vget_low_s16(s0), vget_low_s16(f[0])); | |
| m0 = vmlal_s16(m0, vget_high_s16(s0), vget_high_s16(f[0])); | |
| int32x4_t m1 = vmull_s16(vget_low_s16(s1), vget_low_s16(f[1])); | |
| m1 = vmlal_s16(m1, vget_high_s16(s1), vget_high_s16(f[1])); | |
| int32x4_t m2 = vmull_s16(vget_low_s16(s2), vget_low_s16(f[2])); | |
| m2 = vmlal_s16(m2, vget_high_s16(s2), vget_high_s16(f[2])); | |
| int32x4_t m3 = vmull_s16(vget_low_s16(s3), vget_low_s16(f[3])); | |
| m3 = vmlal_s16(m3, vget_high_s16(s3), vget_high_s16(f[3])); | |
| int32x4_t m0123_pairs[] = { m0, m1, m2, m3 }; | |
| *res = horizontal_add_4d_s32x4(m0123_pairs); | |
| } | |
| static AOM_FORCE_INLINE void vertical_filter_8x1_f8(const int16x8_t *src, | |
| int32x4_t *res_low, | |
| int32x4_t *res_high, int sy, | |
| int gamma) { | |
| int16x8_t s0 = src[0]; | |
| int16x8_t s1 = src[1]; | |
| int16x8_t s2 = src[2]; | |
| int16x8_t s3 = src[3]; | |
| int16x8_t s4 = src[4]; | |
| int16x8_t s5 = src[5]; | |
| int16x8_t s6 = src[6]; | |
| int16x8_t s7 = src[7]; | |
| transpose_elems_inplace_s16_8x8(&s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); | |
| int16x8_t f[8]; | |
| load_filters_8(f, sy, gamma); | |
| int32x4_t m0 = vmull_s16(vget_low_s16(s0), vget_low_s16(f[0])); | |
| m0 = vmlal_s16(m0, vget_high_s16(s0), vget_high_s16(f[0])); | |
| int32x4_t m1 = vmull_s16(vget_low_s16(s1), vget_low_s16(f[1])); | |
| m1 = vmlal_s16(m1, vget_high_s16(s1), vget_high_s16(f[1])); | |
| int32x4_t m2 = vmull_s16(vget_low_s16(s2), vget_low_s16(f[2])); | |
| m2 = vmlal_s16(m2, vget_high_s16(s2), vget_high_s16(f[2])); | |
| int32x4_t m3 = vmull_s16(vget_low_s16(s3), vget_low_s16(f[3])); | |
| m3 = vmlal_s16(m3, vget_high_s16(s3), vget_high_s16(f[3])); | |
| int32x4_t m4 = vmull_s16(vget_low_s16(s4), vget_low_s16(f[4])); | |
| m4 = vmlal_s16(m4, vget_high_s16(s4), vget_high_s16(f[4])); | |
| int32x4_t m5 = vmull_s16(vget_low_s16(s5), vget_low_s16(f[5])); | |
| m5 = vmlal_s16(m5, vget_high_s16(s5), vget_high_s16(f[5])); | |
| int32x4_t m6 = vmull_s16(vget_low_s16(s6), vget_low_s16(f[6])); | |
| m6 = vmlal_s16(m6, vget_high_s16(s6), vget_high_s16(f[6])); | |
| int32x4_t m7 = vmull_s16(vget_low_s16(s7), vget_low_s16(f[7])); | |
| m7 = vmlal_s16(m7, vget_high_s16(s7), vget_high_s16(f[7])); | |
| int32x4_t m0123_pairs[] = { m0, m1, m2, m3 }; | |
| int32x4_t m4567_pairs[] = { m4, m5, m6, m7 }; | |
| *res_low = horizontal_add_4d_s32x4(m0123_pairs); | |
| *res_high = horizontal_add_4d_s32x4(m4567_pairs); | |
| } | |
| static AOM_FORCE_INLINE void warp_affine_horizontal_neon( | |
| const uint8_t *ref, int width, int height, int stride, int p_width, | |
| int p_height, int16_t alpha, int16_t beta, const int64_t x4, | |
| const int64_t y4, const int i, int16x8_t tmp[]) { | |
| const int height_limit = AOMMIN(8, p_height - i) + 7; | |
| int32_t ix4 = (int32_t)(x4 >> WARPEDMODEL_PREC_BITS); | |
| int32_t iy4 = (int32_t)(y4 >> WARPEDMODEL_PREC_BITS); | |
| int32_t sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1); | |
| sx4 += alpha * (-4) + beta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) + | |
| (WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS); | |
| sx4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1); | |
| if (warp_affine_special_case(ref, ix4, iy4, width, height, stride, | |
| height_limit, tmp)) { | |
| return; | |
| } | |
| static const uint8_t kIotaArr[] = { 0, 1, 2, 3, 4, 5, 6, 7, | |
| 8, 9, 10, 11, 12, 13, 14, 15 }; | |
| const uint8x16_t indx = vld1q_u8(kIotaArr); | |
| const int out_of_boundary_left = -(ix4 - 6); | |
| const int out_of_boundary_right = (ix4 + 8) - width; | |
| if (p_width == 4) { | |
| if (beta == 0) { | |
| if (alpha == 0) { | |
| int16x8_t f_s16 = | |
| vld1q_s16(av1_warped_filter[sx4 >> WARPEDDIFF_PREC_BITS]); | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_4x1_f1_beta0, f_s16); | |
| } else { | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_4x1_f4, sx4, alpha); | |
| } | |
| } else { | |
| if (alpha == 0) { | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_4x1_f1, | |
| (sx4 + beta * (k - 3))); | |
| } else { | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_4x1_f4, (sx4 + beta * (k - 3)), | |
| alpha); | |
| } | |
| } | |
| } else { | |
| if (beta == 0) { | |
| if (alpha == 0) { | |
| int16x8_t f_s16 = | |
| vld1q_s16(av1_warped_filter[sx4 >> WARPEDDIFF_PREC_BITS]); | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_8x1_f1_beta0, f_s16); | |
| } else { | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_8x1_f8, sx4, alpha); | |
| } | |
| } else { | |
| if (alpha == 0) { | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_8x1_f1, | |
| (sx4 + beta * (k - 3))); | |
| } else { | |
| APPLY_HORIZONTAL_SHIFT(horizontal_filter_8x1_f8, (sx4 + beta * (k - 3)), | |
| alpha); | |
| } | |
| } | |
| } | |
| } | |
| void av1_warp_affine_neon(const int32_t *mat, const uint8_t *ref, int width, | |
| int height, int stride, uint8_t *pred, int p_col, | |
| int p_row, int p_width, int p_height, int p_stride, | |
| int subsampling_x, int subsampling_y, | |
| ConvolveParams *conv_params, int16_t alpha, | |
| int16_t beta, int16_t gamma, int16_t delta) { | |
| const int w0 = conv_params->fwd_offset; | |
| const int w1 = conv_params->bck_offset; | |
| const int is_compound = conv_params->is_compound; | |
| uint16_t *const dst = conv_params->dst; | |
| const int dst_stride = conv_params->dst_stride; | |
| const int do_average = conv_params->do_average; | |
| const int use_dist_wtd_comp_avg = conv_params->use_dist_wtd_comp_avg; | |
| assert(IMPLIES(is_compound, dst != NULL)); | |
| assert(IMPLIES(do_average, is_compound)); | |
| for (int i = 0; i < p_height; i += 8) { | |
| for (int j = 0; j < p_width; j += 8) { | |
| const int32_t src_x = (p_col + j + 4) << subsampling_x; | |
| const int32_t src_y = (p_row + i + 4) << subsampling_y; | |
| const int64_t dst_x = | |
| (int64_t)mat[2] * src_x + (int64_t)mat[3] * src_y + (int64_t)mat[0]; | |
| const int64_t dst_y = | |
| (int64_t)mat[4] * src_x + (int64_t)mat[5] * src_y + (int64_t)mat[1]; | |
| const int64_t x4 = dst_x >> subsampling_x; | |
| const int64_t y4 = dst_y >> subsampling_y; | |
| int16x8_t tmp[15]; | |
| warp_affine_horizontal_neon(ref, width, height, stride, p_width, p_height, | |
| alpha, beta, x4, y4, i, tmp); | |
| warp_affine_vertical(pred, p_width, p_height, p_stride, is_compound, dst, | |
| dst_stride, do_average, use_dist_wtd_comp_avg, gamma, | |
| delta, y4, i, j, tmp, w0, w1); | |
| } | |
| } | |
| } |