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/*
* 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_config.h"
#include "config/aom_dsp_rtcd.h"
#include "aom/aom_integer.h"
#include "aom_dsp/arm/mem_neon.h"
#include "aom_dsp/arm/sum_neon.h"
static INLINE void sad16_neon(uint8x16_t src, uint8x16_t ref,
uint32x4_t *const sad_sum) {
uint8x16_t abs_diff = vabdq_u8(src, ref);
*sad_sum = vdotq_u32(*sad_sum, abs_diff, vdupq_n_u8(1));
}
static INLINE void sadwxhx3d_large_neon_dotprod(const uint8_t *src,
int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int w, int h) {
uint32x4_t sum_lo[3] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0) };
uint32x4_t sum_hi[3] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0) };
int ref_offset = 0;
int i = h;
do {
int j = 0;
do {
const uint8x16_t s0 = vld1q_u8(src + j);
sad16_neon(s0, vld1q_u8(ref[0] + ref_offset + j), &sum_lo[0]);
sad16_neon(s0, vld1q_u8(ref[1] + ref_offset + j), &sum_lo[1]);
sad16_neon(s0, vld1q_u8(ref[2] + ref_offset + j), &sum_lo[2]);
const uint8x16_t s1 = vld1q_u8(src + j + 16);
sad16_neon(s1, vld1q_u8(ref[0] + ref_offset + j + 16), &sum_hi[0]);
sad16_neon(s1, vld1q_u8(ref[1] + ref_offset + j + 16), &sum_hi[1]);
sad16_neon(s1, vld1q_u8(ref[2] + ref_offset + j + 16), &sum_hi[2]);
j += 32;
} while (j < w);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
res[0] = horizontal_add_u32x4(vaddq_u32(sum_lo[0], sum_hi[0]));
res[1] = horizontal_add_u32x4(vaddq_u32(sum_lo[1], sum_hi[1]));
res[2] = horizontal_add_u32x4(vaddq_u32(sum_lo[2], sum_hi[2]));
}
static INLINE void sad128xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
sadwxhx3d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 128, h);
}
static INLINE void sad64xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
sadwxhx3d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 64, h);
}
static INLINE void sad32xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
sadwxhx3d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 32, h);
}
static INLINE void sad16xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
uint32x4_t sum[3] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0) };
int ref_offset = 0;
int i = h;
do {
const uint8x16_t s = vld1q_u8(src);
sad16_neon(s, vld1q_u8(ref[0] + ref_offset), &sum[0]);
sad16_neon(s, vld1q_u8(ref[1] + ref_offset), &sum[1]);
sad16_neon(s, vld1q_u8(ref[2] + ref_offset), &sum[2]);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
res[0] = horizontal_add_u32x4(sum[0]);
res[1] = horizontal_add_u32x4(sum[1]);
res[2] = horizontal_add_u32x4(sum[2]);
}
#define SAD_WXH_3D_NEON_DOTPROD(w, h) \
void aom_sad##w##x##h##x3d_neon_dotprod(const uint8_t *src, int src_stride, \
const uint8_t *const ref[4], \
int ref_stride, uint32_t res[4]) { \
sad##w##xhx3d_neon_dotprod(src, src_stride, ref, ref_stride, res, (h)); \
}
SAD_WXH_3D_NEON_DOTPROD(16, 8)
SAD_WXH_3D_NEON_DOTPROD(16, 16)
SAD_WXH_3D_NEON_DOTPROD(16, 32)
SAD_WXH_3D_NEON_DOTPROD(32, 16)
SAD_WXH_3D_NEON_DOTPROD(32, 32)
SAD_WXH_3D_NEON_DOTPROD(32, 64)
SAD_WXH_3D_NEON_DOTPROD(64, 32)
SAD_WXH_3D_NEON_DOTPROD(64, 64)
SAD_WXH_3D_NEON_DOTPROD(64, 128)
SAD_WXH_3D_NEON_DOTPROD(128, 64)
SAD_WXH_3D_NEON_DOTPROD(128, 128)
#if !CONFIG_REALTIME_ONLY
SAD_WXH_3D_NEON_DOTPROD(16, 4)
SAD_WXH_3D_NEON_DOTPROD(16, 64)
SAD_WXH_3D_NEON_DOTPROD(32, 8)
SAD_WXH_3D_NEON_DOTPROD(64, 16)
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_WXH_3D_NEON_DOTPROD
static INLINE void sadwxhx4d_large_neon_dotprod(const uint8_t *src,
int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int w, int h) {
uint32x4_t sum_lo[4] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0),
vdupq_n_u32(0) };
uint32x4_t sum_hi[4] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0),
vdupq_n_u32(0) };
uint32x4_t sum[4];
int ref_offset = 0;
int i = h;
do {
int j = 0;
do {
const uint8x16_t s0 = vld1q_u8(src + j);
sad16_neon(s0, vld1q_u8(ref[0] + ref_offset + j), &sum_lo[0]);
sad16_neon(s0, vld1q_u8(ref[1] + ref_offset + j), &sum_lo[1]);
sad16_neon(s0, vld1q_u8(ref[2] + ref_offset + j), &sum_lo[2]);
sad16_neon(s0, vld1q_u8(ref[3] + ref_offset + j), &sum_lo[3]);
const uint8x16_t s1 = vld1q_u8(src + j + 16);
sad16_neon(s1, vld1q_u8(ref[0] + ref_offset + j + 16), &sum_hi[0]);
sad16_neon(s1, vld1q_u8(ref[1] + ref_offset + j + 16), &sum_hi[1]);
sad16_neon(s1, vld1q_u8(ref[2] + ref_offset + j + 16), &sum_hi[2]);
sad16_neon(s1, vld1q_u8(ref[3] + ref_offset + j + 16), &sum_hi[3]);
j += 32;
} while (j < w);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
sum[0] = vaddq_u32(sum_lo[0], sum_hi[0]);
sum[1] = vaddq_u32(sum_lo[1], sum_hi[1]);
sum[2] = vaddq_u32(sum_lo[2], sum_hi[2]);
sum[3] = vaddq_u32(sum_lo[3], sum_hi[3]);
vst1q_u32(res, horizontal_add_4d_u32x4(sum));
}
static INLINE void sad128xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
sadwxhx4d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 128, h);
}
static INLINE void sad64xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
sadwxhx4d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 64, h);
}
static INLINE void sad32xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
sadwxhx4d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 32, h);
}
static INLINE void sad16xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4],
int h) {
uint32x4_t sum[4] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0),
vdupq_n_u32(0) };
int ref_offset = 0;
int i = h;
do {
const uint8x16_t s = vld1q_u8(src);
sad16_neon(s, vld1q_u8(ref[0] + ref_offset), &sum[0]);
sad16_neon(s, vld1q_u8(ref[1] + ref_offset), &sum[1]);
sad16_neon(s, vld1q_u8(ref[2] + ref_offset), &sum[2]);
sad16_neon(s, vld1q_u8(ref[3] + ref_offset), &sum[3]);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
vst1q_u32(res, horizontal_add_4d_u32x4(sum));
}
#define SAD_WXH_4D_NEON_DOTPROD(w, h) \
void aom_sad##w##x##h##x4d_neon_dotprod(const uint8_t *src, int src_stride, \
const uint8_t *const ref[4], \
int ref_stride, uint32_t res[4]) { \
sad##w##xhx4d_neon_dotprod(src, src_stride, ref, ref_stride, res, (h)); \
}
SAD_WXH_4D_NEON_DOTPROD(16, 8)
SAD_WXH_4D_NEON_DOTPROD(16, 16)
SAD_WXH_4D_NEON_DOTPROD(16, 32)
SAD_WXH_4D_NEON_DOTPROD(32, 16)
SAD_WXH_4D_NEON_DOTPROD(32, 32)
SAD_WXH_4D_NEON_DOTPROD(32, 64)
SAD_WXH_4D_NEON_DOTPROD(64, 32)
SAD_WXH_4D_NEON_DOTPROD(64, 64)
SAD_WXH_4D_NEON_DOTPROD(64, 128)
SAD_WXH_4D_NEON_DOTPROD(128, 64)
SAD_WXH_4D_NEON_DOTPROD(128, 128)
#if !CONFIG_REALTIME_ONLY
SAD_WXH_4D_NEON_DOTPROD(16, 4)
SAD_WXH_4D_NEON_DOTPROD(16, 64)
SAD_WXH_4D_NEON_DOTPROD(32, 8)
SAD_WXH_4D_NEON_DOTPROD(64, 16)
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_WXH_4D_NEON_DOTPROD
#define SAD_SKIP_WXH_4D_NEON_DOTPROD(w, h) \
void aom_sad_skip_##w##x##h##x4d_neon_dotprod( \
const uint8_t *src, int src_stride, const uint8_t *const ref[4], \
int ref_stride, uint32_t res[4]) { \
sad##w##xhx4d_neon_dotprod(src, 2 * src_stride, ref, 2 * ref_stride, res, \
((h) >> 1)); \
res[0] <<= 1; \
res[1] <<= 1; \
res[2] <<= 1; \
res[3] <<= 1; \
}
SAD_SKIP_WXH_4D_NEON_DOTPROD(16, 8)
SAD_SKIP_WXH_4D_NEON_DOTPROD(16, 16)
SAD_SKIP_WXH_4D_NEON_DOTPROD(16, 32)
SAD_SKIP_WXH_4D_NEON_DOTPROD(32, 16)
SAD_SKIP_WXH_4D_NEON_DOTPROD(32, 32)
SAD_SKIP_WXH_4D_NEON_DOTPROD(32, 64)
SAD_SKIP_WXH_4D_NEON_DOTPROD(64, 32)
SAD_SKIP_WXH_4D_NEON_DOTPROD(64, 64)
SAD_SKIP_WXH_4D_NEON_DOTPROD(64, 128)
SAD_SKIP_WXH_4D_NEON_DOTPROD(128, 64)
SAD_SKIP_WXH_4D_NEON_DOTPROD(128, 128)
#if !CONFIG_REALTIME_ONLY
SAD_SKIP_WXH_4D_NEON_DOTPROD(16, 4)
SAD_SKIP_WXH_4D_NEON_DOTPROD(16, 64)
SAD_SKIP_WXH_4D_NEON_DOTPROD(32, 8)
SAD_SKIP_WXH_4D_NEON_DOTPROD(64, 16)
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_SKIP_WXH_4D_NEON_DOTPROD
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