| /* |
| * 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 "config/aom_dsp_rtcd.h" |
| #include "aom_dsp/arm/mem_neon.h" |
| #include "aom_dsp/arm/sum_neon.h" |
| |
| static inline void sse_16x1_neon_dotprod(const uint8_t *src, const uint8_t *ref, |
| uint32x4_t *sse) { |
| uint8x16_t s = vld1q_u8(src); |
| uint8x16_t r = vld1q_u8(ref); |
| |
| uint8x16_t abs_diff = vabdq_u8(s, r); |
| |
| *sse = vdotq_u32(*sse, abs_diff, abs_diff); |
| } |
| |
| static inline void sse_8x1_neon_dotprod(const uint8_t *src, const uint8_t *ref, |
| uint32x2_t *sse) { |
| uint8x8_t s = vld1_u8(src); |
| uint8x8_t r = vld1_u8(ref); |
| |
| uint8x8_t abs_diff = vabd_u8(s, r); |
| |
| *sse = vdot_u32(*sse, abs_diff, abs_diff); |
| } |
| |
| static inline void sse_4x2_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, |
| uint32x2_t *sse) { |
| uint8x8_t s = load_unaligned_u8(src, src_stride); |
| uint8x8_t r = load_unaligned_u8(ref, ref_stride); |
| |
| uint8x8_t abs_diff = vabd_u8(s, r); |
| |
| *sse = vdot_u32(*sse, abs_diff, abs_diff); |
| } |
| |
| static inline uint32_t sse_wxh_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, |
| int width, int height) { |
| uint32x2_t sse[2] = { vdup_n_u32(0), vdup_n_u32(0) }; |
| |
| if ((width & 0x07) && ((width & 0x07) < 5)) { |
| int i = height; |
| do { |
| int j = 0; |
| do { |
| sse_8x1_neon_dotprod(src + j, ref + j, &sse[0]); |
| sse_8x1_neon_dotprod(src + j + src_stride, ref + j + ref_stride, |
| &sse[1]); |
| j += 8; |
| } while (j + 4 < width); |
| |
| sse_4x2_neon_dotprod(src + j, src_stride, ref + j, ref_stride, &sse[0]); |
| src += 2 * src_stride; |
| ref += 2 * ref_stride; |
| i -= 2; |
| } while (i != 0); |
| } else { |
| int i = height; |
| do { |
| int j = 0; |
| do { |
| sse_8x1_neon_dotprod(src + j, ref + j, &sse[0]); |
| sse_8x1_neon_dotprod(src + j + src_stride, ref + j + ref_stride, |
| &sse[1]); |
| j += 8; |
| } while (j < width); |
| |
| src += 2 * src_stride; |
| ref += 2 * ref_stride; |
| i -= 2; |
| } while (i != 0); |
| } |
| return horizontal_add_u32x4(vcombine_u32(sse[0], sse[1])); |
| } |
| |
| static inline uint32_t sse_128xh_neon_dotprod(const uint8_t *src, |
| int src_stride, |
| const uint8_t *ref, |
| int ref_stride, int height) { |
| uint32x4_t sse[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; |
| |
| int i = height; |
| do { |
| sse_16x1_neon_dotprod(src, ref, &sse[0]); |
| sse_16x1_neon_dotprod(src + 16, ref + 16, &sse[1]); |
| sse_16x1_neon_dotprod(src + 32, ref + 32, &sse[0]); |
| sse_16x1_neon_dotprod(src + 48, ref + 48, &sse[1]); |
| sse_16x1_neon_dotprod(src + 64, ref + 64, &sse[0]); |
| sse_16x1_neon_dotprod(src + 80, ref + 80, &sse[1]); |
| sse_16x1_neon_dotprod(src + 96, ref + 96, &sse[0]); |
| sse_16x1_neon_dotprod(src + 112, ref + 112, &sse[1]); |
| |
| src += src_stride; |
| ref += ref_stride; |
| } while (--i != 0); |
| |
| return horizontal_add_u32x4(vaddq_u32(sse[0], sse[1])); |
| } |
| |
| static inline uint32_t sse_64xh_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, |
| int height) { |
| uint32x4_t sse[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; |
| |
| int i = height; |
| do { |
| sse_16x1_neon_dotprod(src, ref, &sse[0]); |
| sse_16x1_neon_dotprod(src + 16, ref + 16, &sse[1]); |
| sse_16x1_neon_dotprod(src + 32, ref + 32, &sse[0]); |
| sse_16x1_neon_dotprod(src + 48, ref + 48, &sse[1]); |
| |
| src += src_stride; |
| ref += ref_stride; |
| } while (--i != 0); |
| |
| return horizontal_add_u32x4(vaddq_u32(sse[0], sse[1])); |
| } |
| |
| static inline uint32_t sse_32xh_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, |
| int height) { |
| uint32x4_t sse[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; |
| |
| int i = height; |
| do { |
| sse_16x1_neon_dotprod(src, ref, &sse[0]); |
| sse_16x1_neon_dotprod(src + 16, ref + 16, &sse[1]); |
| |
| src += src_stride; |
| ref += ref_stride; |
| } while (--i != 0); |
| |
| return horizontal_add_u32x4(vaddq_u32(sse[0], sse[1])); |
| } |
| |
| static inline uint32_t sse_16xh_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, |
| int height) { |
| uint32x4_t sse[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; |
| |
| int i = height; |
| do { |
| sse_16x1_neon_dotprod(src, ref, &sse[0]); |
| src += src_stride; |
| ref += ref_stride; |
| sse_16x1_neon_dotprod(src, ref, &sse[1]); |
| src += src_stride; |
| ref += ref_stride; |
| i -= 2; |
| } while (i != 0); |
| |
| return horizontal_add_u32x4(vaddq_u32(sse[0], sse[1])); |
| } |
| |
| static inline uint32_t sse_8xh_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, |
| int height) { |
| uint32x2_t sse[2] = { vdup_n_u32(0), vdup_n_u32(0) }; |
| |
| int i = height; |
| do { |
| sse_8x1_neon_dotprod(src, ref, &sse[0]); |
| src += src_stride; |
| ref += ref_stride; |
| sse_8x1_neon_dotprod(src, ref, &sse[1]); |
| src += src_stride; |
| ref += ref_stride; |
| i -= 2; |
| } while (i != 0); |
| |
| return horizontal_add_u32x4(vcombine_u32(sse[0], sse[1])); |
| } |
| |
| static inline uint32_t sse_4xh_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, |
| int height) { |
| uint32x2_t sse = vdup_n_u32(0); |
| |
| int i = height; |
| do { |
| sse_4x2_neon_dotprod(src, src_stride, ref, ref_stride, &sse); |
| |
| src += 2 * src_stride; |
| ref += 2 * ref_stride; |
| i -= 2; |
| } while (i != 0); |
| |
| return horizontal_add_u32x2(sse); |
| } |
| |
| int64_t aom_sse_neon_dotprod(const uint8_t *src, int src_stride, |
| const uint8_t *ref, int ref_stride, int width, |
| int height) { |
| switch (width) { |
| case 4: |
| return sse_4xh_neon_dotprod(src, src_stride, ref, ref_stride, height); |
| case 8: |
| return sse_8xh_neon_dotprod(src, src_stride, ref, ref_stride, height); |
| case 16: |
| return sse_16xh_neon_dotprod(src, src_stride, ref, ref_stride, height); |
| case 32: |
| return sse_32xh_neon_dotprod(src, src_stride, ref, ref_stride, height); |
| case 64: |
| return sse_64xh_neon_dotprod(src, src_stride, ref, ref_stride, height); |
| case 128: |
| return sse_128xh_neon_dotprod(src, src_stride, ref, ref_stride, height); |
| default: |
| return sse_wxh_neon_dotprod(src, src_stride, ref, ref_stride, width, |
| height); |
| } |
| } |