| /* |
| * |
| * 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 <arm_neon.h> |
| #include <assert.h> |
| #include <stdbool.h> |
| |
| #include "aom_dsp/arm/mem_neon.h" |
| #include "aom_dsp/blend.h" |
| #include "aom_ports/mem.h" |
| #include "config/av1_rtcd.h" |
| |
| static inline void diffwtd_mask_highbd_neon(uint8_t *mask, bool inverse, |
| const uint16_t *src0, |
| int src0_stride, |
| const uint16_t *src1, |
| int src1_stride, int h, int w, |
| const unsigned int bd) { |
| assert(DIFF_FACTOR > 0); |
| uint8x16_t max_alpha = vdupq_n_u8(AOM_BLEND_A64_MAX_ALPHA); |
| uint8x16_t mask_base = vdupq_n_u8(38); |
| uint8x16_t mask_diff = vdupq_n_u8(AOM_BLEND_A64_MAX_ALPHA - 38); |
| |
| if (bd == 8) { |
| if (w >= 16) { |
| do { |
| uint8_t *mask_ptr = mask; |
| const uint16_t *src0_ptr = src0; |
| const uint16_t *src1_ptr = src1; |
| int width = w; |
| do { |
| uint16x8_t s0_lo = vld1q_u16(src0_ptr); |
| uint16x8_t s0_hi = vld1q_u16(src0_ptr + 8); |
| uint16x8_t s1_lo = vld1q_u16(src1_ptr); |
| uint16x8_t s1_hi = vld1q_u16(src1_ptr + 8); |
| |
| uint16x8_t diff_lo_u16 = vabdq_u16(s0_lo, s1_lo); |
| uint16x8_t diff_hi_u16 = vabdq_u16(s0_hi, s1_hi); |
| uint8x8_t diff_lo_u8 = vshrn_n_u16(diff_lo_u16, DIFF_FACTOR_LOG2); |
| uint8x8_t diff_hi_u8 = vshrn_n_u16(diff_hi_u16, DIFF_FACTOR_LOG2); |
| uint8x16_t diff = vcombine_u8(diff_lo_u8, diff_hi_u8); |
| |
| uint8x16_t m; |
| if (inverse) { |
| m = vqsubq_u8(mask_diff, diff); |
| } else { |
| m = vminq_u8(vaddq_u8(diff, mask_base), max_alpha); |
| } |
| |
| vst1q_u8(mask_ptr, m); |
| |
| src0_ptr += 16; |
| src1_ptr += 16; |
| mask_ptr += 16; |
| width -= 16; |
| } while (width != 0); |
| mask += w; |
| src0 += src0_stride; |
| src1 += src1_stride; |
| } while (--h != 0); |
| } else if (w == 8) { |
| do { |
| uint8_t *mask_ptr = mask; |
| const uint16_t *src0_ptr = src0; |
| const uint16_t *src1_ptr = src1; |
| int width = w; |
| do { |
| uint16x8_t s0 = vld1q_u16(src0_ptr); |
| uint16x8_t s1 = vld1q_u16(src1_ptr); |
| |
| uint16x8_t diff_u16 = vabdq_u16(s0, s1); |
| uint8x8_t diff_u8 = vshrn_n_u16(diff_u16, DIFF_FACTOR_LOG2); |
| uint8x8_t m; |
| if (inverse) { |
| m = vqsub_u8(vget_low_u8(mask_diff), diff_u8); |
| } else { |
| m = vmin_u8(vadd_u8(diff_u8, vget_low_u8(mask_base)), |
| vget_low_u8(max_alpha)); |
| } |
| |
| vst1_u8(mask_ptr, m); |
| |
| src0_ptr += 8; |
| src1_ptr += 8; |
| mask_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| mask += w; |
| src0 += src0_stride; |
| src1 += src1_stride; |
| } while (--h != 0); |
| } else if (w == 4) { |
| do { |
| uint16x8_t s0 = load_unaligned_u16_4x2(src0, src0_stride); |
| uint16x8_t s1 = load_unaligned_u16_4x2(src1, src1_stride); |
| |
| uint16x8_t diff_u16 = vabdq_u16(s0, s1); |
| uint8x8_t diff_u8 = vshrn_n_u16(diff_u16, DIFF_FACTOR_LOG2); |
| uint8x8_t m; |
| if (inverse) { |
| m = vqsub_u8(vget_low_u8(mask_diff), diff_u8); |
| } else { |
| m = vmin_u8(vadd_u8(diff_u8, vget_low_u8(mask_base)), |
| vget_low_u8(max_alpha)); |
| } |
| |
| store_u8x4_strided_x2(mask, w, m); |
| |
| src0 += 2 * src0_stride; |
| src1 += 2 * src1_stride; |
| mask += 2 * w; |
| h -= 2; |
| } while (h != 0); |
| } |
| } else if (bd == 10) { |
| if (w >= 16) { |
| do { |
| uint8_t *mask_ptr = mask; |
| const uint16_t *src0_ptr = src0; |
| const uint16_t *src1_ptr = src1; |
| int width = w; |
| do { |
| uint16x8_t s0_lo = vld1q_u16(src0_ptr); |
| uint16x8_t s0_hi = vld1q_u16(src0_ptr + 8); |
| uint16x8_t s1_lo = vld1q_u16(src1_ptr); |
| uint16x8_t s1_hi = vld1q_u16(src1_ptr + 8); |
| |
| uint16x8_t diff_lo_u16 = vabdq_u16(s0_lo, s1_lo); |
| uint16x8_t diff_hi_u16 = vabdq_u16(s0_hi, s1_hi); |
| uint8x8_t diff_lo_u8 = vshrn_n_u16(diff_lo_u16, 2 + DIFF_FACTOR_LOG2); |
| uint8x8_t diff_hi_u8 = vshrn_n_u16(diff_hi_u16, 2 + DIFF_FACTOR_LOG2); |
| uint8x16_t diff = vcombine_u8(diff_lo_u8, diff_hi_u8); |
| |
| uint8x16_t m; |
| if (inverse) { |
| m = vqsubq_u8(mask_diff, diff); |
| } else { |
| m = vminq_u8(vaddq_u8(diff, mask_base), max_alpha); |
| } |
| |
| vst1q_u8(mask_ptr, m); |
| |
| src0_ptr += 16; |
| src1_ptr += 16; |
| mask_ptr += 16; |
| width -= 16; |
| } while (width != 0); |
| mask += w; |
| src0 += src0_stride; |
| src1 += src1_stride; |
| } while (--h != 0); |
| } else if (w == 8) { |
| do { |
| uint8_t *mask_ptr = mask; |
| const uint16_t *src0_ptr = src0; |
| const uint16_t *src1_ptr = src1; |
| int width = w; |
| do { |
| uint16x8_t s0 = vld1q_u16(src0_ptr); |
| uint16x8_t s1 = vld1q_u16(src1_ptr); |
| |
| uint16x8_t diff_u16 = vabdq_u16(s0, s1); |
| uint8x8_t diff_u8 = vshrn_n_u16(diff_u16, 2 + DIFF_FACTOR_LOG2); |
| uint8x8_t m; |
| if (inverse) { |
| m = vqsub_u8(vget_low_u8(mask_diff), diff_u8); |
| } else { |
| m = vmin_u8(vadd_u8(diff_u8, vget_low_u8(mask_base)), |
| vget_low_u8(max_alpha)); |
| } |
| |
| vst1_u8(mask_ptr, m); |
| |
| src0_ptr += 8; |
| src1_ptr += 8; |
| mask_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| mask += w; |
| src0 += src0_stride; |
| src1 += src1_stride; |
| } while (--h != 0); |
| } else if (w == 4) { |
| do { |
| uint16x8_t s0 = load_unaligned_u16_4x2(src0, src0_stride); |
| uint16x8_t s1 = load_unaligned_u16_4x2(src1, src1_stride); |
| |
| uint16x8_t diff_u16 = vabdq_u16(s0, s1); |
| uint8x8_t diff_u8 = vshrn_n_u16(diff_u16, 2 + DIFF_FACTOR_LOG2); |
| uint8x8_t m; |
| if (inverse) { |
| m = vqsub_u8(vget_low_u8(mask_diff), diff_u8); |
| } else { |
| m = vmin_u8(vadd_u8(diff_u8, vget_low_u8(mask_base)), |
| vget_low_u8(max_alpha)); |
| } |
| |
| store_u8x4_strided_x2(mask, w, m); |
| |
| src0 += 2 * src0_stride; |
| src1 += 2 * src1_stride; |
| mask += 2 * w; |
| h -= 2; |
| } while (h != 0); |
| } |
| } else { |
| assert(bd == 12); |
| if (w >= 16) { |
| do { |
| uint8_t *mask_ptr = mask; |
| const uint16_t *src0_ptr = src0; |
| const uint16_t *src1_ptr = src1; |
| int width = w; |
| do { |
| uint16x8_t s0_lo = vld1q_u16(src0_ptr); |
| uint16x8_t s0_hi = vld1q_u16(src0_ptr + 8); |
| uint16x8_t s1_lo = vld1q_u16(src1_ptr); |
| uint16x8_t s1_hi = vld1q_u16(src1_ptr + 8); |
| |
| uint16x8_t diff_lo_u16 = vabdq_u16(s0_lo, s1_lo); |
| uint16x8_t diff_hi_u16 = vabdq_u16(s0_hi, s1_hi); |
| uint8x8_t diff_lo_u8 = vshrn_n_u16(diff_lo_u16, 4 + DIFF_FACTOR_LOG2); |
| uint8x8_t diff_hi_u8 = vshrn_n_u16(diff_hi_u16, 4 + DIFF_FACTOR_LOG2); |
| uint8x16_t diff = vcombine_u8(diff_lo_u8, diff_hi_u8); |
| |
| uint8x16_t m; |
| if (inverse) { |
| m = vqsubq_u8(mask_diff, diff); |
| } else { |
| m = vminq_u8(vaddq_u8(diff, mask_base), max_alpha); |
| } |
| |
| vst1q_u8(mask_ptr, m); |
| |
| src0_ptr += 16; |
| src1_ptr += 16; |
| mask_ptr += 16; |
| width -= 16; |
| } while (width != 0); |
| mask += w; |
| src0 += src0_stride; |
| src1 += src1_stride; |
| } while (--h != 0); |
| } else if (w == 8) { |
| do { |
| uint8_t *mask_ptr = mask; |
| const uint16_t *src0_ptr = src0; |
| const uint16_t *src1_ptr = src1; |
| int width = w; |
| do { |
| uint16x8_t s0 = vld1q_u16(src0_ptr); |
| uint16x8_t s1 = vld1q_u16(src1_ptr); |
| |
| uint16x8_t diff_u16 = vabdq_u16(s0, s1); |
| uint8x8_t diff_u8 = vshrn_n_u16(diff_u16, 4 + DIFF_FACTOR_LOG2); |
| uint8x8_t m; |
| if (inverse) { |
| m = vqsub_u8(vget_low_u8(mask_diff), diff_u8); |
| } else { |
| m = vmin_u8(vadd_u8(diff_u8, vget_low_u8(mask_base)), |
| vget_low_u8(max_alpha)); |
| } |
| |
| vst1_u8(mask_ptr, m); |
| |
| src0_ptr += 8; |
| src1_ptr += 8; |
| mask_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| mask += w; |
| src0 += src0_stride; |
| src1 += src1_stride; |
| } while (--h != 0); |
| } else if (w == 4) { |
| do { |
| uint16x8_t s0 = load_unaligned_u16_4x2(src0, src0_stride); |
| uint16x8_t s1 = load_unaligned_u16_4x2(src1, src1_stride); |
| |
| uint16x8_t diff_u16 = vabdq_u16(s0, s1); |
| uint8x8_t diff_u8 = vshrn_n_u16(diff_u16, 4 + DIFF_FACTOR_LOG2); |
| uint8x8_t m; |
| if (inverse) { |
| m = vqsub_u8(vget_low_u8(mask_diff), diff_u8); |
| } else { |
| m = vmin_u8(vadd_u8(diff_u8, vget_low_u8(mask_base)), |
| vget_low_u8(max_alpha)); |
| } |
| |
| store_u8x4_strided_x2(mask, w, m); |
| |
| src0 += 2 * src0_stride; |
| src1 += 2 * src1_stride; |
| mask += 2 * w; |
| h -= 2; |
| } while (h != 0); |
| } |
| } |
| } |
| |
| void av1_build_compound_diffwtd_mask_highbd_neon( |
| uint8_t *mask, DIFFWTD_MASK_TYPE mask_type, const uint8_t *src0, |
| int src0_stride, const uint8_t *src1, int src1_stride, int h, int w, |
| int bd) { |
| assert(h % 4 == 0); |
| assert(w % 4 == 0); |
| assert(mask_type == DIFFWTD_38_INV || mask_type == DIFFWTD_38); |
| |
| if (mask_type == DIFFWTD_38) { |
| diffwtd_mask_highbd_neon(mask, /*inverse=*/false, CONVERT_TO_SHORTPTR(src0), |
| src0_stride, CONVERT_TO_SHORTPTR(src1), |
| src1_stride, h, w, bd); |
| } else { // mask_type == DIFFWTD_38_INV |
| diffwtd_mask_highbd_neon(mask, /*inverse=*/true, CONVERT_TO_SHORTPTR(src0), |
| src0_stride, CONVERT_TO_SHORTPTR(src1), |
| src1_stride, h, w, bd); |
| } |
| } |
