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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/aom/av1/common/arm/warp_plane_neon.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/aom/av1/common/arm/warp_plane_neon.h')
-rw-r--r-- | third_party/aom/av1/common/arm/warp_plane_neon.h | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/warp_plane_neon.h b/third_party/aom/av1/common/arm/warp_plane_neon.h new file mode 100644 index 0000000000..5afd72f4ab --- /dev/null +++ b/third_party/aom/av1/common/arm/warp_plane_neon.h @@ -0,0 +1,367 @@ +/* + * 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. + */ +#ifndef AOM_AV1_COMMON_ARM_WARP_PLANE_NEON_H_ +#define AOM_AV1_COMMON_ARM_WARP_PLANE_NEON_H_ + +#include <assert.h> +#include <arm_neon.h> +#include <memory.h> +#include <math.h> + +#include "aom_dsp/aom_dsp_common.h" +#include "aom_dsp/arm/sum_neon.h" +#include "aom_dsp/arm/transpose_neon.h" +#include "aom_ports/mem.h" +#include "config/av1_rtcd.h" +#include "av1/common/warped_motion.h" +#include "av1/common/scale.h" + +static INLINE int16x8_t horizontal_filter_4x1_f4(const uint8x16_t in, int sx, + int alpha); + +static INLINE int16x8_t horizontal_filter_8x1_f8(const uint8x16_t in, int sx, + int alpha); + +static INLINE int16x8_t horizontal_filter_4x1_f1(const uint8x16_t in, int sx); + +static INLINE int16x8_t horizontal_filter_8x1_f1(const uint8x16_t in, int sx); + +static INLINE void vertical_filter_4x1_f1(const int16x8_t *src, int32x4_t *res, + int sy); + +static INLINE void vertical_filter_4x1_f4(const int16x8_t *src, int32x4_t *res, + int sy, int gamma); + +static INLINE void vertical_filter_8x1_f1(const int16x8_t *src, + int32x4_t *res_low, + int32x4_t *res_high, int sy); + +static INLINE void vertical_filter_8x1_f8(const int16x8_t *src, + int32x4_t *res_low, + int32x4_t *res_high, int sy, + int gamma); + +static INLINE void load_filters_4(int16x8_t out[], int offset, int stride) { + out[0] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 0 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[1] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 1 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[2] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 2 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[3] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 3 * stride) >> + WARPEDDIFF_PREC_BITS))); +} + +static INLINE void load_filters_8(int16x8_t out[], int offset, int stride) { + out[0] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 0 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[1] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 1 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[2] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 2 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[3] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 3 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[4] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 4 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[5] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 5 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[6] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 6 * stride) >> + WARPEDDIFF_PREC_BITS))); + out[7] = vld1q_s16((int16_t *)(av1_warped_filter + ((offset + 7 * stride) >> + WARPEDDIFF_PREC_BITS))); +} + +static INLINE int clamp_iy(int iy, int height) { + return clamp(iy, 0, height - 1); +} + +static INLINE void warp_affine_horizontal(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 bd = 8; + const int reduce_bits_horiz = ROUND0_BITS; + 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 (ix4 <= -7) { + for (int k = 0; k < height_limit; ++k) { + int iy = clamp_iy(iy4 + k - 7, height); + int16_t dup_val = + (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + + ref[iy * stride] * (1 << (FILTER_BITS - reduce_bits_horiz)); + tmp[k] = vdupq_n_s16(dup_val); + } + return; + } else if (ix4 >= width + 6) { + for (int k = 0; k < height_limit; ++k) { + int iy = clamp_iy(iy4 + k - 7, height); + int16_t dup_val = (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + + ref[iy * stride + (width - 1)] * + (1 << (FILTER_BITS - reduce_bits_horiz)); + tmp[k] = vdupq_n_s16(dup_val); + } + 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; + +#define APPLY_HORIZONTAL_SHIFT(fn, ...) \ + do { \ + if (out_of_boundary_left >= 0 || out_of_boundary_right >= 0) { \ + for (int k = 0; k < height_limit; ++k) { \ + const int iy = clamp_iy(iy4 + k - 7, height); \ + const uint8_t *src = ref + iy * stride + ix4 - 7; \ + uint8x16_t src_1 = vld1q_u8(src); \ + \ + if (out_of_boundary_left >= 0) { \ + int limit = out_of_boundary_left + 1; \ + uint8x16_t cmp_vec = vdupq_n_u8(out_of_boundary_left); \ + uint8x16_t vec_dup = vdupq_n_u8(*(src + limit)); \ + uint8x16_t mask_val = vcleq_u8(indx, cmp_vec); \ + src_1 = vbslq_u8(mask_val, vec_dup, src_1); \ + } \ + if (out_of_boundary_right >= 0) { \ + int limit = 15 - (out_of_boundary_right + 1); \ + uint8x16_t cmp_vec = vdupq_n_u8(15 - out_of_boundary_right); \ + uint8x16_t vec_dup = vdupq_n_u8(*(src + limit)); \ + uint8x16_t mask_val = vcgeq_u8(indx, cmp_vec); \ + src_1 = vbslq_u8(mask_val, vec_dup, src_1); \ + } \ + tmp[k] = (fn)(src_1, __VA_ARGS__); \ + } \ + } else { \ + for (int k = 0; k < height_limit; ++k) { \ + const int iy = clamp_iy(iy4 + k - 7, height); \ + const uint8_t *src = ref + iy * stride + ix4 - 7; \ + uint8x16_t src_1 = vld1q_u8(src); \ + tmp[k] = (fn)(src_1, __VA_ARGS__); \ + } \ + } \ + } while (0) + + if (p_width == 4) { + if (beta == 0) { + if (alpha == 0) { + APPLY_HORIZONTAL_SHIFT(horizontal_filter_4x1_f1, sx4); + } 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) { + APPLY_HORIZONTAL_SHIFT(horizontal_filter_8x1_f1, sx4); + } 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); + } + } + } +} + +static INLINE void warp_affine_vertical( + uint8_t *pred, int p_width, int p_height, int p_stride, int is_compound, + uint16_t *dst, int dst_stride, int do_average, int use_dist_wtd_comp_avg, + int16_t gamma, int16_t delta, const int64_t y4, const int i, const int j, + int16x8_t tmp[], const int fwd, const int bwd) { + const int bd = 8; + const int reduce_bits_horiz = ROUND0_BITS; + const int offset_bits_vert = bd + 2 * FILTER_BITS - reduce_bits_horiz; + int add_const_vert; + if (is_compound) { + add_const_vert = + (1 << offset_bits_vert) + (1 << (COMPOUND_ROUND1_BITS - 1)); + } else { + add_const_vert = + (1 << offset_bits_vert) + (1 << (2 * FILTER_BITS - ROUND0_BITS - 1)); + } + const int sub_constant = (1 << (bd - 1)) + (1 << bd); + + const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; + const int res_sub_const = + (1 << (2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS - 1)) - + (1 << (offset_bits - COMPOUND_ROUND1_BITS)) - + (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1)); + + int32_t sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1); + sy4 += gamma * (-4) + delta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) + + (WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS); + sy4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1); + + if (p_width > 4) { + for (int k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { + int sy = sy4 + delta * (k + 4); + const int16x8_t *v_src = tmp + (k + 4); + + int32x4_t res_lo, res_hi; + if (gamma == 0) { + vertical_filter_8x1_f1(v_src, &res_lo, &res_hi, sy); + } else { + vertical_filter_8x1_f8(v_src, &res_lo, &res_hi, sy, gamma); + } + + res_lo = vaddq_s32(res_lo, vdupq_n_s32(add_const_vert)); + res_hi = vaddq_s32(res_hi, vdupq_n_s32(add_const_vert)); + + if (is_compound) { + uint16_t *const p = (uint16_t *)&dst[(i + k + 4) * dst_stride + j]; + int16x8_t res_s16 = + vcombine_s16(vshrn_n_s32(res_lo, COMPOUND_ROUND1_BITS), + vshrn_n_s32(res_hi, COMPOUND_ROUND1_BITS)); + if (do_average) { + int16x8_t tmp16 = vreinterpretq_s16_u16(vld1q_u16(p)); + if (use_dist_wtd_comp_avg) { + int32x4_t tmp32_lo = vmull_n_s16(vget_low_s16(tmp16), fwd); + int32x4_t tmp32_hi = vmull_n_s16(vget_high_s16(tmp16), fwd); + tmp32_lo = vmlal_n_s16(tmp32_lo, vget_low_s16(res_s16), bwd); + tmp32_hi = vmlal_n_s16(tmp32_hi, vget_high_s16(res_s16), bwd); + tmp16 = vcombine_s16(vshrn_n_s32(tmp32_lo, DIST_PRECISION_BITS), + vshrn_n_s32(tmp32_hi, DIST_PRECISION_BITS)); + } else { + tmp16 = vhaddq_s16(tmp16, res_s16); + } + int16x8_t res = vaddq_s16(tmp16, vdupq_n_s16(res_sub_const)); + uint8x8_t res8 = vqshrun_n_s16( + res, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS); + vst1_u8(&pred[(i + k + 4) * p_stride + j], res8); + } else { + vst1q_u16(p, vreinterpretq_u16_s16(res_s16)); + } + } else { + int16x8_t res16 = + vcombine_s16(vshrn_n_s32(res_lo, 2 * FILTER_BITS - ROUND0_BITS), + vshrn_n_s32(res_hi, 2 * FILTER_BITS - ROUND0_BITS)); + res16 = vsubq_s16(res16, vdupq_n_s16(sub_constant)); + + uint8_t *const p = (uint8_t *)&pred[(i + k + 4) * p_stride + j]; + vst1_u8(p, vqmovun_s16(res16)); + } + } + } else { + // p_width == 4 + for (int k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { + int sy = sy4 + delta * (k + 4); + const int16x8_t *v_src = tmp + (k + 4); + + int32x4_t res_lo; + if (gamma == 0) { + vertical_filter_4x1_f1(v_src, &res_lo, sy); + } else { + vertical_filter_4x1_f4(v_src, &res_lo, sy, gamma); + } + + res_lo = vaddq_s32(res_lo, vdupq_n_s32(add_const_vert)); + + if (is_compound) { + uint16_t *const p = (uint16_t *)&dst[(i + k + 4) * dst_stride + j]; + + int16x4_t res_lo_s16 = vshrn_n_s32(res_lo, COMPOUND_ROUND1_BITS); + if (do_average) { + uint8_t *const dst8 = &pred[(i + k + 4) * p_stride + j]; + int16x4_t tmp16_lo = vreinterpret_s16_u16(vld1_u16(p)); + if (use_dist_wtd_comp_avg) { + int32x4_t tmp32_lo = vmull_n_s16(tmp16_lo, fwd); + tmp32_lo = vmlal_n_s16(tmp32_lo, res_lo_s16, bwd); + tmp16_lo = vshrn_n_s32(tmp32_lo, DIST_PRECISION_BITS); + } else { + tmp16_lo = vhadd_s16(tmp16_lo, res_lo_s16); + } + int16x4_t res = vadd_s16(tmp16_lo, vdup_n_s16(res_sub_const)); + uint8x8_t res8 = vqshrun_n_s16( + vcombine_s16(res, vdup_n_s16(0)), + 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS); + vst1_lane_u32((uint32_t *)dst8, vreinterpret_u32_u8(res8), 0); + } else { + uint16x4_t res_u16_low = vreinterpret_u16_s16(res_lo_s16); + vst1_u16(p, res_u16_low); + } + } else { + int16x4_t res16 = vshrn_n_s32(res_lo, 2 * FILTER_BITS - ROUND0_BITS); + res16 = vsub_s16(res16, vdup_n_s16(sub_constant)); + + uint8_t *const p = (uint8_t *)&pred[(i + k + 4) * p_stride + j]; + uint8x8_t val = vqmovun_s16(vcombine_s16(res16, vdup_n_s16(0))); + vst1_lane_u32((uint32_t *)p, vreinterpret_u32_u8(val), 0); + } + } + } +} + +static INLINE void av1_warp_affine_common( + 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(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); + } + } +} + +#endif // AOM_AV1_COMMON_ARM_WARP_PLANE_NEON_H_ |