| /* |
| * Copyright (c) 2016, 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_config.h" |
| #include "config/aom_dsp_rtcd.h" |
| #include "aom/aom_integer.h" |
| #include "aom_dsp/arm/sum_neon.h" |
| |
| #if defined(__ARM_FEATURE_DOTPROD) |
| |
| static INLINE unsigned int sadwxh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int w, int h) { |
| // Only two accumulators are required for optimal instruction throughput of |
| // the ABD, UDOT sequence on CPUs with either 2 or 4 Neon pipes. |
| uint32x4_t sum[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; |
| |
| int i = 0; |
| do { |
| int j = 0; |
| do { |
| uint8x16_t s0, s1, r0, r1, diff0, diff1; |
| |
| s0 = vld1q_u8(src_ptr + j); |
| r0 = vld1q_u8(ref_ptr + j); |
| diff0 = vabdq_u8(s0, r0); |
| sum[0] = vdotq_u32(sum[0], diff0, vdupq_n_u8(1)); |
| |
| s1 = vld1q_u8(src_ptr + j + 16); |
| r1 = vld1q_u8(ref_ptr + j + 16); |
| diff1 = vabdq_u8(s1, r1); |
| sum[1] = vdotq_u32(sum[1], diff1, vdupq_n_u8(1)); |
| |
| j += 32; |
| } while (j < w); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h); |
| |
| return horizontal_add_u32x4(vaddq_u32(sum[0], sum[1])); |
| } |
| |
| static INLINE unsigned int sad128xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| return sadwxh_neon(src_ptr, src_stride, ref_ptr, ref_stride, 128, h); |
| } |
| |
| static INLINE unsigned int sad64xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| return sadwxh_neon(src_ptr, src_stride, ref_ptr, ref_stride, 64, h); |
| } |
| |
| static INLINE unsigned int sad32xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| return sadwxh_neon(src_ptr, src_stride, ref_ptr, ref_stride, 32, h); |
| } |
| |
| static INLINE unsigned int sad16xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| uint32x4_t sum[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; |
| |
| int i = 0; |
| do { |
| uint8x16_t s0, s1, r0, r1, diff0, diff1; |
| |
| s0 = vld1q_u8(src_ptr); |
| r0 = vld1q_u8(ref_ptr); |
| diff0 = vabdq_u8(s0, r0); |
| sum[0] = vdotq_u32(sum[0], diff0, vdupq_n_u8(1)); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| |
| s1 = vld1q_u8(src_ptr); |
| r1 = vld1q_u8(ref_ptr); |
| diff1 = vabdq_u8(s1, r1); |
| sum[1] = vdotq_u32(sum[1], diff1, vdupq_n_u8(1)); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h / 2); |
| |
| return horizontal_add_u32x4(vaddq_u32(sum[0], sum[1])); |
| } |
| |
| #else // !defined(__ARM_FEATURE_DOTPROD) |
| |
| static INLINE unsigned int sad128xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| // We use 8 accumulators to prevent overflow for large values of 'h', as well |
| // as enabling optimal UADALP instruction throughput on CPUs that have either |
| // 2 or 4 Neon pipes. |
| uint16x8_t sum[8] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), |
| vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), |
| vdupq_n_u16(0), vdupq_n_u16(0) }; |
| |
| int i = 0; |
| do { |
| uint8x16_t s0, s1, s2, s3, s4, s5, s6, s7; |
| uint8x16_t r0, r1, r2, r3, r4, r5, r6, r7; |
| uint8x16_t diff0, diff1, diff2, diff3, diff4, diff5, diff6, diff7; |
| |
| s0 = vld1q_u8(src_ptr); |
| r0 = vld1q_u8(ref_ptr); |
| diff0 = vabdq_u8(s0, r0); |
| sum[0] = vpadalq_u8(sum[0], diff0); |
| |
| s1 = vld1q_u8(src_ptr + 16); |
| r1 = vld1q_u8(ref_ptr + 16); |
| diff1 = vabdq_u8(s1, r1); |
| sum[1] = vpadalq_u8(sum[1], diff1); |
| |
| s2 = vld1q_u8(src_ptr + 32); |
| r2 = vld1q_u8(ref_ptr + 32); |
| diff2 = vabdq_u8(s2, r2); |
| sum[2] = vpadalq_u8(sum[2], diff2); |
| |
| s3 = vld1q_u8(src_ptr + 48); |
| r3 = vld1q_u8(ref_ptr + 48); |
| diff3 = vabdq_u8(s3, r3); |
| sum[3] = vpadalq_u8(sum[3], diff3); |
| |
| s4 = vld1q_u8(src_ptr + 64); |
| r4 = vld1q_u8(ref_ptr + 64); |
| diff4 = vabdq_u8(s4, r4); |
| sum[4] = vpadalq_u8(sum[4], diff4); |
| |
| s5 = vld1q_u8(src_ptr + 80); |
| r5 = vld1q_u8(ref_ptr + 80); |
| diff5 = vabdq_u8(s5, r5); |
| sum[5] = vpadalq_u8(sum[5], diff5); |
| |
| s6 = vld1q_u8(src_ptr + 96); |
| r6 = vld1q_u8(ref_ptr + 96); |
| diff6 = vabdq_u8(s6, r6); |
| sum[6] = vpadalq_u8(sum[6], diff6); |
| |
| s7 = vld1q_u8(src_ptr + 112); |
| r7 = vld1q_u8(ref_ptr + 112); |
| diff7 = vabdq_u8(s7, r7); |
| sum[7] = vpadalq_u8(sum[7], diff7); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h); |
| |
| uint32x4_t sum_u32 = vpaddlq_u16(sum[0]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[1]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[2]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[3]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[4]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[5]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[6]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[7]); |
| |
| return horizontal_add_u32x4(sum_u32); |
| } |
| |
| static INLINE unsigned int sad64xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| uint16x8_t sum[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), |
| vdupq_n_u16(0) }; |
| |
| int i = 0; |
| do { |
| uint8x16_t s0, s1, s2, s3, r0, r1, r2, r3; |
| uint8x16_t diff0, diff1, diff2, diff3; |
| |
| s0 = vld1q_u8(src_ptr); |
| r0 = vld1q_u8(ref_ptr); |
| diff0 = vabdq_u8(s0, r0); |
| sum[0] = vpadalq_u8(sum[0], diff0); |
| |
| s1 = vld1q_u8(src_ptr + 16); |
| r1 = vld1q_u8(ref_ptr + 16); |
| diff1 = vabdq_u8(s1, r1); |
| sum[1] = vpadalq_u8(sum[1], diff1); |
| |
| s2 = vld1q_u8(src_ptr + 32); |
| r2 = vld1q_u8(ref_ptr + 32); |
| diff2 = vabdq_u8(s2, r2); |
| sum[2] = vpadalq_u8(sum[2], diff2); |
| |
| s3 = vld1q_u8(src_ptr + 48); |
| r3 = vld1q_u8(ref_ptr + 48); |
| diff3 = vabdq_u8(s3, r3); |
| sum[3] = vpadalq_u8(sum[3], diff3); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h); |
| |
| uint32x4_t sum_u32 = vpaddlq_u16(sum[0]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[1]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[2]); |
| sum_u32 = vpadalq_u16(sum_u32, sum[3]); |
| |
| return horizontal_add_u32x4(sum_u32); |
| } |
| |
| static INLINE unsigned int sad32xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| uint32x4_t sum = vdupq_n_u32(0); |
| |
| int i = 0; |
| do { |
| uint8x16_t s0 = vld1q_u8(src_ptr); |
| uint8x16_t r0 = vld1q_u8(ref_ptr); |
| uint8x16_t diff0 = vabdq_u8(s0, r0); |
| uint16x8_t sum0 = vpaddlq_u8(diff0); |
| |
| uint8x16_t s1 = vld1q_u8(src_ptr + 16); |
| uint8x16_t r1 = vld1q_u8(ref_ptr + 16); |
| uint8x16_t diff1 = vabdq_u8(s1, r1); |
| uint16x8_t sum1 = vpaddlq_u8(diff1); |
| |
| sum = vpadalq_u16(sum, sum0); |
| sum = vpadalq_u16(sum, sum1); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h); |
| |
| return horizontal_add_u32x4(sum); |
| } |
| |
| static INLINE unsigned int sad16xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| uint16x8_t sum = vdupq_n_u16(0); |
| |
| int i = 0; |
| do { |
| uint8x16_t s = vld1q_u8(src_ptr); |
| uint8x16_t r = vld1q_u8(ref_ptr); |
| |
| uint8x16_t diff = vabdq_u8(s, r); |
| sum = vpadalq_u8(sum, diff); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h); |
| |
| return horizontal_add_u16x8(sum); |
| } |
| |
| #endif // defined(__ARM_FEATURE_DOTPROD) |
| |
| static INLINE unsigned int sad8xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| uint16x8_t sum = vdupq_n_u16(0); |
| |
| int i = 0; |
| do { |
| uint8x8_t s = vld1_u8(src_ptr); |
| uint8x8_t r = vld1_u8(ref_ptr); |
| |
| sum = vabal_u8(sum, s, r); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h); |
| |
| return horizontal_add_u16x8(sum); |
| } |
| |
| static INLINE unsigned int sad4xh_neon(const uint8_t *src_ptr, int src_stride, |
| const uint8_t *ref_ptr, int ref_stride, |
| int h) { |
| uint16x8_t sum = vdupq_n_u16(0); |
| |
| int i = 0; |
| do { |
| uint32x2_t s, r; |
| uint32_t s0, s1, r0, r1; |
| |
| memcpy(&s0, src_ptr, 4); |
| memcpy(&r0, ref_ptr, 4); |
| s = vdup_n_u32(s0); |
| r = vdup_n_u32(r0); |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| |
| memcpy(&s1, src_ptr, 4); |
| memcpy(&r1, ref_ptr, 4); |
| s = vset_lane_u32(s1, s, 1); |
| r = vset_lane_u32(r1, r, 1); |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| |
| sum = vabal_u8(sum, vreinterpret_u8_u32(s), vreinterpret_u8_u32(r)); |
| i++; |
| } while (i < h / 2); |
| |
| return horizontal_add_u16x8(sum); |
| } |
| |
| #define SAD_WXH_NEON(w, h) \ |
| unsigned int aom_sad##w##x##h##_neon(const uint8_t *src, int src_stride, \ |
| const uint8_t *ref, int ref_stride) { \ |
| return sad##w##xh_neon(src, src_stride, ref, ref_stride, (h)); \ |
| } |
| |
| SAD_WXH_NEON(4, 4) |
| SAD_WXH_NEON(4, 8) |
| SAD_WXH_NEON(4, 16) |
| |
| SAD_WXH_NEON(8, 4) |
| SAD_WXH_NEON(8, 8) |
| SAD_WXH_NEON(8, 16) |
| SAD_WXH_NEON(8, 32) |
| |
| SAD_WXH_NEON(16, 4) |
| SAD_WXH_NEON(16, 8) |
| SAD_WXH_NEON(16, 16) |
| SAD_WXH_NEON(16, 32) |
| SAD_WXH_NEON(16, 64) |
| |
| SAD_WXH_NEON(32, 8) |
| SAD_WXH_NEON(32, 16) |
| SAD_WXH_NEON(32, 32) |
| SAD_WXH_NEON(32, 64) |
| |
| SAD_WXH_NEON(64, 16) |
| SAD_WXH_NEON(64, 32) |
| SAD_WXH_NEON(64, 64) |
| SAD_WXH_NEON(64, 128) |
| |
| SAD_WXH_NEON(128, 64) |
| SAD_WXH_NEON(128, 128) |
| |
| #undef SAD_WXH_NEON |
| |
| #define SAD_SKIP_WXH_NEON(w, h) \ |
| unsigned int aom_sad_skip_##w##x##h##_neon( \ |
| const uint8_t *src, int src_stride, const uint8_t *ref, \ |
| int ref_stride) { \ |
| return 2 * \ |
| sad##w##xh_neon(src, 2 * src_stride, ref, 2 * ref_stride, (h) / 2); \ |
| } |
| |
| SAD_SKIP_WXH_NEON(4, 8) |
| SAD_SKIP_WXH_NEON(4, 16) |
| |
| SAD_SKIP_WXH_NEON(8, 8) |
| SAD_SKIP_WXH_NEON(8, 16) |
| SAD_SKIP_WXH_NEON(8, 32) |
| |
| SAD_SKIP_WXH_NEON(16, 8) |
| SAD_SKIP_WXH_NEON(16, 16) |
| SAD_SKIP_WXH_NEON(16, 32) |
| SAD_SKIP_WXH_NEON(16, 64) |
| |
| SAD_SKIP_WXH_NEON(32, 8) |
| SAD_SKIP_WXH_NEON(32, 16) |
| SAD_SKIP_WXH_NEON(32, 32) |
| SAD_SKIP_WXH_NEON(32, 64) |
| |
| SAD_SKIP_WXH_NEON(64, 16) |
| SAD_SKIP_WXH_NEON(64, 32) |
| SAD_SKIP_WXH_NEON(64, 64) |
| SAD_SKIP_WXH_NEON(64, 128) |
| |
| SAD_SKIP_WXH_NEON(128, 64) |
| SAD_SKIP_WXH_NEON(128, 128) |
| |
| #undef SAD_SKIP_WXH_NEON |
