| /* |
| * Copyright (c) 2023 The WebM project authors. All Rights Reserved. |
| * Copyright (c) 2022, 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_dsp/aom_filter.h" |
| #include "aom_dsp/arm/mem_neon.h" |
| #include "aom_dsp/arm/sum_neon.h" |
| #include "aom_dsp/variance.h" |
| |
| // Process a block of width 4 two rows at a time. |
| static INLINE void highbd_variance_4xh_neon(const uint16_t *src_ptr, |
| int src_stride, |
| const uint16_t *ref_ptr, |
| int ref_stride, int h, |
| uint64_t *sse, int64_t *sum) { |
| int16x8_t sum_s16 = vdupq_n_s16(0); |
| int32x4_t sse_s32 = vdupq_n_s32(0); |
| |
| int i = h; |
| do { |
| const uint16x8_t s = load_unaligned_u16_4x2(src_ptr, src_stride); |
| const uint16x8_t r = load_unaligned_u16_4x2(ref_ptr, ref_stride); |
| |
| int16x8_t diff = vreinterpretq_s16_u16(vsubq_u16(s, r)); |
| sum_s16 = vaddq_s16(sum_s16, diff); |
| |
| sse_s32 = vmlal_s16(sse_s32, vget_low_s16(diff), vget_low_s16(diff)); |
| sse_s32 = vmlal_s16(sse_s32, vget_high_s16(diff), vget_high_s16(diff)); |
| |
| src_ptr += 2 * src_stride; |
| ref_ptr += 2 * ref_stride; |
| i -= 2; |
| } while (i != 0); |
| |
| *sum = horizontal_add_s16x8(sum_s16); |
| *sse = horizontal_add_s32x4(sse_s32); |
| } |
| |
| // For 8-bit and 10-bit data, since we're using two int32x4 accumulators, all |
| // block sizes can be processed in 32-bit elements (1023*1023*128*32 = |
| // 4286582784 for a 128x128 block). |
| static INLINE void highbd_variance_large_neon(const uint16_t *src_ptr, |
| int src_stride, |
| const uint16_t *ref_ptr, |
| int ref_stride, int w, int h, |
| uint64_t *sse, int64_t *sum) { |
| int32x4_t sum_s32 = vdupq_n_s32(0); |
| int32x4_t sse_s32[2] = { vdupq_n_s32(0), vdupq_n_s32(0) }; |
| |
| int i = h; |
| do { |
| int j = 0; |
| do { |
| const uint16x8_t s = vld1q_u16(src_ptr + j); |
| const uint16x8_t r = vld1q_u16(ref_ptr + j); |
| |
| const int16x8_t diff = vreinterpretq_s16_u16(vsubq_u16(s, r)); |
| sum_s32 = vpadalq_s16(sum_s32, diff); |
| |
| sse_s32[0] = |
| vmlal_s16(sse_s32[0], vget_low_s16(diff), vget_low_s16(diff)); |
| sse_s32[1] = |
| vmlal_s16(sse_s32[1], vget_high_s16(diff), vget_high_s16(diff)); |
| |
| j += 8; |
| } while (j < w); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| } while (--i != 0); |
| |
| *sum = horizontal_add_s32x4(sum_s32); |
| *sse = horizontal_long_add_u32x4(vaddq_u32( |
| vreinterpretq_u32_s32(sse_s32[0]), vreinterpretq_u32_s32(sse_s32[1]))); |
| } |
| |
| static INLINE void highbd_variance_8xh_neon(const uint16_t *src, int src_stride, |
| const uint16_t *ref, int ref_stride, |
| int h, uint64_t *sse, |
| int64_t *sum) { |
| highbd_variance_large_neon(src, src_stride, ref, ref_stride, 8, h, sse, sum); |
| } |
| |
| static INLINE void highbd_variance_16xh_neon(const uint16_t *src, |
| int src_stride, |
| const uint16_t *ref, |
| int ref_stride, int h, |
| uint64_t *sse, int64_t *sum) { |
| highbd_variance_large_neon(src, src_stride, ref, ref_stride, 16, h, sse, sum); |
| } |
| |
| static INLINE void highbd_variance_32xh_neon(const uint16_t *src, |
| int src_stride, |
| const uint16_t *ref, |
| int ref_stride, int h, |
| uint64_t *sse, int64_t *sum) { |
| highbd_variance_large_neon(src, src_stride, ref, ref_stride, 32, h, sse, sum); |
| } |
| |
| static INLINE void highbd_variance_64xh_neon(const uint16_t *src, |
| int src_stride, |
| const uint16_t *ref, |
| int ref_stride, int h, |
| uint64_t *sse, int64_t *sum) { |
| highbd_variance_large_neon(src, src_stride, ref, ref_stride, 64, h, sse, sum); |
| } |
| |
| static INLINE void highbd_variance_128xh_neon(const uint16_t *src, |
| int src_stride, |
| const uint16_t *ref, |
| int ref_stride, int h, |
| uint64_t *sse, int64_t *sum) { |
| highbd_variance_large_neon(src, src_stride, ref, ref_stride, 128, h, sse, |
| sum); |
| } |
| |
| // For 12-bit data, we can only accumulate up to 128 elements in the sum of |
| // squares (4095*4095*128 = 2146435200), and because we're using two int32x4 |
| // accumulators, we can only process up to 32 32-element rows (32*32/8 = 128) |
| // or 16 64-element rows before we have to accumulate into 64-bit elements. |
| // Therefore blocks of size 32x64, 64x32, 64x64, 64x128, 128x64, 128x128 are |
| // processed in a different helper function. |
| |
| // Process a block of any size where the width is divisible by 8, with |
| // accumulation into 64-bit elements. |
| static INLINE void highbd_variance_xlarge_neon( |
| const uint16_t *src_ptr, int src_stride, const uint16_t *ref_ptr, |
| int ref_stride, int w, int h, int h_limit, uint64_t *sse, int64_t *sum) { |
| int32x4_t sum_s32 = vdupq_n_s32(0); |
| int64x2_t sse_s64 = vdupq_n_s64(0); |
| |
| // 'h_limit' is the number of 'w'-width rows we can process before our 32-bit |
| // accumulator overflows. After hitting this limit we accumulate into 64-bit |
| // elements. |
| int h_tmp = h > h_limit ? h_limit : h; |
| |
| int i = 0; |
| do { |
| int32x4_t sse_s32[2] = { vdupq_n_s32(0), vdupq_n_s32(0) }; |
| do { |
| int j = 0; |
| do { |
| const uint16x8_t s0 = vld1q_u16(src_ptr + j); |
| const uint16x8_t r0 = vld1q_u16(ref_ptr + j); |
| |
| const int16x8_t diff = vreinterpretq_s16_u16(vsubq_u16(s0, r0)); |
| sum_s32 = vpadalq_s16(sum_s32, diff); |
| |
| sse_s32[0] = |
| vmlal_s16(sse_s32[0], vget_low_s16(diff), vget_low_s16(diff)); |
| sse_s32[1] = |
| vmlal_s16(sse_s32[1], vget_high_s16(diff), vget_high_s16(diff)); |
| |
| j += 8; |
| } while (j < w); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| i++; |
| } while (i < h_tmp); |
| |
| sse_s64 = vpadalq_s32(sse_s64, sse_s32[0]); |
| sse_s64 = vpadalq_s32(sse_s64, sse_s32[1]); |
| h_tmp += h_limit; |
| } while (i < h); |
| |
| *sum = horizontal_add_s32x4(sum_s32); |
| *sse = (uint64_t)horizontal_add_s64x2(sse_s64); |
| } |
| |
| static INLINE void highbd_variance_32xh_xlarge_neon( |
| const uint16_t *src, int src_stride, const uint16_t *ref, int ref_stride, |
| int h, uint64_t *sse, int64_t *sum) { |
| highbd_variance_xlarge_neon(src, src_stride, ref, ref_stride, 32, h, 32, sse, |
| sum); |
| } |
| |
| static INLINE void highbd_variance_64xh_xlarge_neon( |
| const uint16_t *src, int src_stride, const uint16_t *ref, int ref_stride, |
| int h, uint64_t *sse, int64_t *sum) { |
| highbd_variance_xlarge_neon(src, src_stride, ref, ref_stride, 64, h, 16, sse, |
| sum); |
| } |
| |
| static INLINE void highbd_variance_128xh_xlarge_neon( |
| const uint16_t *src, int src_stride, const uint16_t *ref, int ref_stride, |
| int h, uint64_t *sse, int64_t *sum) { |
| highbd_variance_xlarge_neon(src, src_stride, ref, ref_stride, 128, h, 8, sse, |
| sum); |
| } |
| |
| #define HBD_VARIANCE_WXH_8_NEON(w, h) \ |
| uint32_t aom_highbd_8_variance##w##x##h##_neon( \ |
| const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, \ |
| int ref_stride, uint32_t *sse) { \ |
| int sum; \ |
| uint64_t sse_long = 0; \ |
| int64_t sum_long = 0; \ |
| uint16_t *src = CONVERT_TO_SHORTPTR(src_ptr); \ |
| uint16_t *ref = CONVERT_TO_SHORTPTR(ref_ptr); \ |
| highbd_variance_##w##xh_neon(src, src_stride, ref, ref_stride, h, \ |
| &sse_long, &sum_long); \ |
| *sse = (uint32_t)sse_long; \ |
| sum = (int)sum_long; \ |
| return *sse - (uint32_t)(((int64_t)sum * sum) / (w * h)); \ |
| } |
| |
| #define HBD_VARIANCE_WXH_10_NEON(w, h) \ |
| uint32_t aom_highbd_10_variance##w##x##h##_neon( \ |
| const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, \ |
| int ref_stride, uint32_t *sse) { \ |
| int sum; \ |
| int64_t var; \ |
| uint64_t sse_long = 0; \ |
| int64_t sum_long = 0; \ |
| uint16_t *src = CONVERT_TO_SHORTPTR(src_ptr); \ |
| uint16_t *ref = CONVERT_TO_SHORTPTR(ref_ptr); \ |
| highbd_variance_##w##xh_neon(src, src_stride, ref, ref_stride, h, \ |
| &sse_long, &sum_long); \ |
| *sse = (uint32_t)ROUND_POWER_OF_TWO(sse_long, 4); \ |
| sum = (int)ROUND_POWER_OF_TWO(sum_long, 2); \ |
| var = (int64_t)(*sse) - (((int64_t)sum * sum) / (w * h)); \ |
| return (var >= 0) ? (uint32_t)var : 0; \ |
| } |
| |
| #define HBD_VARIANCE_WXH_12_NEON(w, h) \ |
| uint32_t aom_highbd_12_variance##w##x##h##_neon( \ |
| const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, \ |
| int ref_stride, uint32_t *sse) { \ |
| int sum; \ |
| int64_t var; \ |
| uint64_t sse_long = 0; \ |
| int64_t sum_long = 0; \ |
| uint16_t *src = CONVERT_TO_SHORTPTR(src_ptr); \ |
| uint16_t *ref = CONVERT_TO_SHORTPTR(ref_ptr); \ |
| highbd_variance_##w##xh_neon(src, src_stride, ref, ref_stride, h, \ |
| &sse_long, &sum_long); \ |
| *sse = (uint32_t)ROUND_POWER_OF_TWO(sse_long, 8); \ |
| sum = (int)ROUND_POWER_OF_TWO(sum_long, 4); \ |
| var = (int64_t)(*sse) - (((int64_t)sum * sum) / (w * h)); \ |
| return (var >= 0) ? (uint32_t)var : 0; \ |
| } |
| |
| #define HBD_VARIANCE_WXH_12_XLARGE_NEON(w, h) \ |
| uint32_t aom_highbd_12_variance##w##x##h##_neon( \ |
| const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, \ |
| int ref_stride, uint32_t *sse) { \ |
| int sum; \ |
| int64_t var; \ |
| uint64_t sse_long = 0; \ |
| int64_t sum_long = 0; \ |
| uint16_t *src = CONVERT_TO_SHORTPTR(src_ptr); \ |
| uint16_t *ref = CONVERT_TO_SHORTPTR(ref_ptr); \ |
| highbd_variance_##w##xh_xlarge_neon(src, src_stride, ref, ref_stride, h, \ |
| &sse_long, &sum_long); \ |
| *sse = (uint32_t)ROUND_POWER_OF_TWO(sse_long, 8); \ |
| sum = (int)ROUND_POWER_OF_TWO(sum_long, 4); \ |
| var = (int64_t)(*sse) - (((int64_t)sum * sum) / (w * h)); \ |
| return (var >= 0) ? (uint32_t)var : 0; \ |
| } |
| |
| // 8-bit |
| HBD_VARIANCE_WXH_8_NEON(4, 4) |
| HBD_VARIANCE_WXH_8_NEON(4, 8) |
| |
| HBD_VARIANCE_WXH_8_NEON(8, 4) |
| HBD_VARIANCE_WXH_8_NEON(8, 8) |
| HBD_VARIANCE_WXH_8_NEON(8, 16) |
| |
| HBD_VARIANCE_WXH_8_NEON(16, 8) |
| HBD_VARIANCE_WXH_8_NEON(16, 16) |
| HBD_VARIANCE_WXH_8_NEON(16, 32) |
| |
| HBD_VARIANCE_WXH_8_NEON(32, 16) |
| HBD_VARIANCE_WXH_8_NEON(32, 32) |
| HBD_VARIANCE_WXH_8_NEON(32, 64) |
| |
| HBD_VARIANCE_WXH_8_NEON(64, 32) |
| HBD_VARIANCE_WXH_8_NEON(64, 64) |
| HBD_VARIANCE_WXH_8_NEON(64, 128) |
| |
| HBD_VARIANCE_WXH_8_NEON(128, 64) |
| HBD_VARIANCE_WXH_8_NEON(128, 128) |
| |
| // 10-bit |
| HBD_VARIANCE_WXH_10_NEON(4, 4) |
| HBD_VARIANCE_WXH_10_NEON(4, 8) |
| |
| HBD_VARIANCE_WXH_10_NEON(8, 4) |
| HBD_VARIANCE_WXH_10_NEON(8, 8) |
| HBD_VARIANCE_WXH_10_NEON(8, 16) |
| |
| HBD_VARIANCE_WXH_10_NEON(16, 8) |
| HBD_VARIANCE_WXH_10_NEON(16, 16) |
| HBD_VARIANCE_WXH_10_NEON(16, 32) |
| |
| HBD_VARIANCE_WXH_10_NEON(32, 16) |
| HBD_VARIANCE_WXH_10_NEON(32, 32) |
| HBD_VARIANCE_WXH_10_NEON(32, 64) |
| |
| HBD_VARIANCE_WXH_10_NEON(64, 32) |
| HBD_VARIANCE_WXH_10_NEON(64, 64) |
| HBD_VARIANCE_WXH_10_NEON(64, 128) |
| |
| HBD_VARIANCE_WXH_10_NEON(128, 64) |
| HBD_VARIANCE_WXH_10_NEON(128, 128) |
| |
| // 12-bit |
| HBD_VARIANCE_WXH_12_NEON(4, 4) |
| HBD_VARIANCE_WXH_12_NEON(4, 8) |
| |
| HBD_VARIANCE_WXH_12_NEON(8, 4) |
| HBD_VARIANCE_WXH_12_NEON(8, 8) |
| HBD_VARIANCE_WXH_12_NEON(8, 16) |
| |
| HBD_VARIANCE_WXH_12_NEON(16, 8) |
| HBD_VARIANCE_WXH_12_NEON(16, 16) |
| HBD_VARIANCE_WXH_12_NEON(16, 32) |
| |
| HBD_VARIANCE_WXH_12_NEON(32, 16) |
| HBD_VARIANCE_WXH_12_NEON(32, 32) |
| HBD_VARIANCE_WXH_12_XLARGE_NEON(32, 64) |
| |
| HBD_VARIANCE_WXH_12_XLARGE_NEON(64, 32) |
| HBD_VARIANCE_WXH_12_XLARGE_NEON(64, 64) |
| HBD_VARIANCE_WXH_12_XLARGE_NEON(64, 128) |
| |
| HBD_VARIANCE_WXH_12_XLARGE_NEON(128, 64) |
| HBD_VARIANCE_WXH_12_XLARGE_NEON(128, 128) |
| |
| #if !CONFIG_REALTIME_ONLY |
| // 8-bit |
| HBD_VARIANCE_WXH_8_NEON(4, 16) |
| |
| HBD_VARIANCE_WXH_8_NEON(8, 32) |
| |
| HBD_VARIANCE_WXH_8_NEON(16, 4) |
| HBD_VARIANCE_WXH_8_NEON(16, 64) |
| |
| HBD_VARIANCE_WXH_8_NEON(32, 8) |
| |
| HBD_VARIANCE_WXH_8_NEON(64, 16) |
| |
| // 10-bit |
| HBD_VARIANCE_WXH_10_NEON(4, 16) |
| |
| HBD_VARIANCE_WXH_10_NEON(8, 32) |
| |
| HBD_VARIANCE_WXH_10_NEON(16, 4) |
| HBD_VARIANCE_WXH_10_NEON(16, 64) |
| |
| HBD_VARIANCE_WXH_10_NEON(32, 8) |
| |
| HBD_VARIANCE_WXH_10_NEON(64, 16) |
| |
| // 12-bit |
| HBD_VARIANCE_WXH_12_NEON(4, 16) |
| |
| HBD_VARIANCE_WXH_12_NEON(8, 32) |
| |
| HBD_VARIANCE_WXH_12_NEON(16, 4) |
| HBD_VARIANCE_WXH_12_NEON(16, 64) |
| |
| HBD_VARIANCE_WXH_12_NEON(32, 8) |
| |
| HBD_VARIANCE_WXH_12_NEON(64, 16) |
| |
| #endif // !CONFIG_REALTIME_ONLY |
| |
| static INLINE uint32_t highbd_mse_wxh_neon(const uint16_t *src_ptr, |
| int src_stride, |
| const uint16_t *ref_ptr, |
| int ref_stride, int w, int h, |
| unsigned int *sse) { |
| uint32x4_t sse_u32[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; |
| |
| int i = h; |
| do { |
| int j = 0; |
| do { |
| uint16x8_t s = vld1q_u16(src_ptr + j); |
| uint16x8_t r = vld1q_u16(ref_ptr + j); |
| |
| uint16x8_t diff = vabdq_u16(s, r); |
| |
| sse_u32[0] = |
| vmlal_u16(sse_u32[0], vget_low_u16(diff), vget_low_u16(diff)); |
| sse_u32[1] = |
| vmlal_u16(sse_u32[1], vget_high_u16(diff), vget_high_u16(diff)); |
| |
| j += 8; |
| } while (j < w); |
| |
| src_ptr += src_stride; |
| ref_ptr += ref_stride; |
| } while (--i != 0); |
| |
| *sse = horizontal_add_u32x4(vaddq_u32(sse_u32[0], sse_u32[1])); |
| return *sse; |
| } |
| |
| static INLINE uint32_t highbd_mse8_8xh_neon(const uint16_t *src_ptr, |
| int src_stride, |
| const uint16_t *ref_ptr, |
| int ref_stride, int h, |
| unsigned int *sse) { |
| return highbd_mse_wxh_neon(src_ptr, src_stride, ref_ptr, ref_stride, 8, h, |
| sse); |
| } |
| |
| static INLINE uint32_t highbd_mse8_16xh_neon(const uint16_t *src_ptr, |
| int src_stride, |
| const uint16_t *ref_ptr, |
| int ref_stride, int h, |
| unsigned int *sse) { |
| return highbd_mse_wxh_neon(src_ptr, src_stride, ref_ptr, ref_stride, 16, h, |
| sse); |
| } |
| |
| #define HIGHBD_MSE_WXH_NEON(w, h) \ |
| uint32_t aom_highbd_8_mse##w##x##h##_neon( \ |
| const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, \ |
| int ref_stride, uint32_t *sse) { \ |
| uint16_t *src = CONVERT_TO_SHORTPTR(src_ptr); \ |
| uint16_t *ref = CONVERT_TO_SHORTPTR(ref_ptr); \ |
| highbd_mse8_##w##xh_neon(src, src_stride, ref, ref_stride, h, sse); \ |
| return *sse; \ |
| } \ |
| \ |
| uint32_t aom_highbd_10_mse##w##x##h##_neon( \ |
| const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, \ |
| int ref_stride, uint32_t *sse) { \ |
| uint16_t *src = CONVERT_TO_SHORTPTR(src_ptr); \ |
| uint16_t *ref = CONVERT_TO_SHORTPTR(ref_ptr); \ |
| highbd_mse_wxh_neon(src, src_stride, ref, ref_stride, w, h, sse); \ |
| *sse = ROUND_POWER_OF_TWO(*sse, 4); \ |
| return *sse; \ |
| } \ |
| \ |
| uint32_t aom_highbd_12_mse##w##x##h##_neon( \ |
| const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, \ |
| int ref_stride, uint32_t *sse) { \ |
| uint16_t *src = CONVERT_TO_SHORTPTR(src_ptr); \ |
| uint16_t *ref = CONVERT_TO_SHORTPTR(ref_ptr); \ |
| highbd_mse_wxh_neon(src, src_stride, ref, ref_stride, w, h, sse); \ |
| *sse = ROUND_POWER_OF_TWO(*sse, 8); \ |
| return *sse; \ |
| } |
| |
| HIGHBD_MSE_WXH_NEON(16, 16) |
| HIGHBD_MSE_WXH_NEON(16, 8) |
| HIGHBD_MSE_WXH_NEON(8, 16) |
| HIGHBD_MSE_WXH_NEON(8, 8) |
| |
| #undef HIGHBD_MSE_WXH_NEON |
| |
| static INLINE uint64x2_t mse_accumulate_u16_8x2(uint64x2_t sum, uint16x8_t s0, |
| uint16x8_t s1, uint16x8_t d0, |
| uint16x8_t d1) { |
| uint16x8_t e0 = vabdq_u16(s0, d0); |
| uint16x8_t e1 = vabdq_u16(s1, d1); |
| |
| uint32x4_t mse = vmull_u16(vget_low_u16(e0), vget_low_u16(e0)); |
| mse = vmlal_u16(mse, vget_high_u16(e0), vget_high_u16(e0)); |
| mse = vmlal_u16(mse, vget_low_u16(e1), vget_low_u16(e1)); |
| mse = vmlal_u16(mse, vget_high_u16(e1), vget_high_u16(e1)); |
| |
| return vpadalq_u32(sum, mse); |
| } |
| |
| uint64_t aom_mse_wxh_16bit_highbd_neon(uint16_t *dst, int dstride, |
| uint16_t *src, int sstride, int w, |
| int h) { |
| assert((w == 8 || w == 4) && (h == 8 || h == 4)); |
| |
| uint64x2_t sum = vdupq_n_u64(0); |
| |
| if (w == 8) { |
| do { |
| uint16x8_t d0 = vld1q_u16(dst + 0 * dstride); |
| uint16x8_t d1 = vld1q_u16(dst + 1 * dstride); |
| uint16x8_t s0 = vld1q_u16(src + 0 * sstride); |
| uint16x8_t s1 = vld1q_u16(src + 1 * sstride); |
| |
| sum = mse_accumulate_u16_8x2(sum, s0, s1, d0, d1); |
| |
| dst += 2 * dstride; |
| src += 2 * sstride; |
| h -= 2; |
| } while (h != 0); |
| } else { // w == 4 |
| do { |
| uint16x8_t d0 = load_unaligned_u16_4x2(dst + 0 * dstride, dstride); |
| uint16x8_t d1 = load_unaligned_u16_4x2(dst + 2 * dstride, dstride); |
| uint16x8_t s0 = load_unaligned_u16_4x2(src + 0 * sstride, sstride); |
| uint16x8_t s1 = load_unaligned_u16_4x2(src + 2 * sstride, sstride); |
| |
| sum = mse_accumulate_u16_8x2(sum, s0, s1, d0, d1); |
| |
| dst += 4 * dstride; |
| src += 4 * sstride; |
| h -= 4; |
| } while (h != 0); |
| } |
| |
| return horizontal_add_u64x2(sum); |
| } |
