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/*
* 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/mem_neon.h"
#include "aom_dsp/arm/sum_neon.h"
static inline void sad16_neon(uint8x16_t src, uint8x16_t ref,
uint16x8_t *const sad_sum) {
uint8x16_t abs_diff = vabdq_u8(src, ref);
*sad_sum = vpadalq_u8(*sad_sum, abs_diff);
}
static inline void sadwxhx3d_large_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[3],
int ref_stride, uint32_t res[3], int w,
int h, int h_overflow) {
uint32x4_t sum[3] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0) };
int h_limit = h > h_overflow ? h_overflow : h;
int ref_offset = 0;
int i = 0;
do {
uint16x8_t sum_lo[3] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) };
uint16x8_t sum_hi[3] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) };
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 < h_limit);
sum[0] = vpadalq_u16(sum[0], sum_lo[0]);
sum[0] = vpadalq_u16(sum[0], sum_hi[0]);
sum[1] = vpadalq_u16(sum[1], sum_lo[1]);
sum[1] = vpadalq_u16(sum[1], sum_hi[1]);
sum[2] = vpadalq_u16(sum[2], sum_lo[2]);
sum[2] = vpadalq_u16(sum[2], sum_hi[2]);
h_limit += h_overflow;
} while (i < h);
res[0] = horizontal_add_u32x4(sum[0]);
res[1] = horizontal_add_u32x4(sum[1]);
res[2] = horizontal_add_u32x4(sum[2]);
}
static inline void sad128xhx3d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[3], int ref_stride,
uint32_t res[3], int h) {
sadwxhx3d_large_neon(src, src_stride, ref, ref_stride, res, 128, h, 32);
}
static inline void sad64xhx3d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[3], int ref_stride,
uint32_t res[3], int h) {
sadwxhx3d_large_neon(src, src_stride, ref, ref_stride, res, 64, h, 64);
}
static inline void sad32xhx3d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[3], int ref_stride,
uint32_t res[3], int h) {
uint16x8_t sum_lo[3] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) };
uint16x8_t sum_hi[3] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) };
int ref_offset = 0;
int i = h;
do {
const uint8x16_t s0 = vld1q_u8(src);
sad16_neon(s0, vld1q_u8(ref[0] + ref_offset), &sum_lo[0]);
sad16_neon(s0, vld1q_u8(ref[1] + ref_offset), &sum_lo[1]);
sad16_neon(s0, vld1q_u8(ref[2] + ref_offset), &sum_lo[2]);
const uint8x16_t s1 = vld1q_u8(src + 16);
sad16_neon(s1, vld1q_u8(ref[0] + ref_offset + 16), &sum_hi[0]);
sad16_neon(s1, vld1q_u8(ref[1] + ref_offset + 16), &sum_hi[1]);
sad16_neon(s1, vld1q_u8(ref[2] + ref_offset + 16), &sum_hi[2]);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
res[0] = horizontal_long_add_u16x8(sum_lo[0], sum_hi[0]);
res[1] = horizontal_long_add_u16x8(sum_lo[1], sum_hi[1]);
res[2] = horizontal_long_add_u16x8(sum_lo[2], sum_hi[2]);
}
static inline void sad16xhx3d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[3], int ref_stride,
uint32_t res[3], int h) {
uint16x8_t sum[3] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(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_u16x8(sum[0]);
res[1] = horizontal_add_u16x8(sum[1]);
res[2] = horizontal_add_u16x8(sum[2]);
}
static inline void sad8xhx3d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[3], int ref_stride,
uint32_t res[3], int h) {
uint16x8_t sum[3];
uint8x8_t s = vld1_u8(src);
sum[0] = vabdl_u8(s, vld1_u8(ref[0]));
sum[1] = vabdl_u8(s, vld1_u8(ref[1]));
sum[2] = vabdl_u8(s, vld1_u8(ref[2]));
src += src_stride;
int ref_offset = ref_stride;
int i = h - 1;
do {
s = vld1_u8(src);
sum[0] = vabal_u8(sum[0], s, vld1_u8(ref[0] + ref_offset));
sum[1] = vabal_u8(sum[1], s, vld1_u8(ref[1] + ref_offset));
sum[2] = vabal_u8(sum[2], s, vld1_u8(ref[2] + ref_offset));
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
res[0] = horizontal_add_u16x8(sum[0]);
res[1] = horizontal_add_u16x8(sum[1]);
res[2] = horizontal_add_u16x8(sum[2]);
}
static inline void sad4xhx3d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[3], int ref_stride,
uint32_t res[3], int h) {
assert(h % 2 == 0);
uint16x8_t sum[3];
uint8x8_t s = load_unaligned_u8(src, src_stride);
uint8x8_t r0 = load_unaligned_u8(ref[0], ref_stride);
uint8x8_t r1 = load_unaligned_u8(ref[1], ref_stride);
uint8x8_t r2 = load_unaligned_u8(ref[2], ref_stride);
sum[0] = vabdl_u8(s, r0);
sum[1] = vabdl_u8(s, r1);
sum[2] = vabdl_u8(s, r2);
src += 2 * src_stride;
int ref_offset = 2 * ref_stride;
int i = (h / 2) - 1;
do {
s = load_unaligned_u8(src, src_stride);
r0 = load_unaligned_u8(ref[0] + ref_offset, ref_stride);
r1 = load_unaligned_u8(ref[1] + ref_offset, ref_stride);
r2 = load_unaligned_u8(ref[2] + ref_offset, ref_stride);
sum[0] = vabal_u8(sum[0], s, r0);
sum[1] = vabal_u8(sum[1], s, r1);
sum[2] = vabal_u8(sum[2], s, r2);
src += 2 * src_stride;
ref_offset += 2 * ref_stride;
} while (--i != 0);
res[0] = horizontal_add_u16x8(sum[0]);
res[1] = horizontal_add_u16x8(sum[1]);
res[2] = horizontal_add_u16x8(sum[2]);
}
#define SAD_WXH_3D_NEON(w, h) \
void aom_sad##w##x##h##x3d_neon(const uint8_t *src, int src_stride, \
const uint8_t *const ref[4], int ref_stride, \
uint32_t res[4]) { \
sad##w##xhx3d_neon(src, src_stride, ref, ref_stride, res, (h)); \
}
SAD_WXH_3D_NEON(4, 4)
SAD_WXH_3D_NEON(4, 8)
SAD_WXH_3D_NEON(8, 4)
SAD_WXH_3D_NEON(8, 8)
SAD_WXH_3D_NEON(8, 16)
SAD_WXH_3D_NEON(16, 8)
SAD_WXH_3D_NEON(16, 16)
SAD_WXH_3D_NEON(16, 32)
SAD_WXH_3D_NEON(32, 16)
SAD_WXH_3D_NEON(32, 32)
SAD_WXH_3D_NEON(32, 64)
SAD_WXH_3D_NEON(64, 32)
SAD_WXH_3D_NEON(64, 64)
SAD_WXH_3D_NEON(64, 128)
SAD_WXH_3D_NEON(128, 64)
SAD_WXH_3D_NEON(128, 128)
#if !CONFIG_REALTIME_ONLY
SAD_WXH_3D_NEON(4, 16)
SAD_WXH_3D_NEON(8, 32)
SAD_WXH_3D_NEON(16, 4)
SAD_WXH_3D_NEON(16, 64)
SAD_WXH_3D_NEON(32, 8)
SAD_WXH_3D_NEON(64, 16)
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_WXH_3D_NEON
static inline void sadwxhx4d_large_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[4],
int ref_stride, uint32_t res[4], int w,
int h, int h_overflow) {
uint32x4_t sum[4] = { vdupq_n_u32(0), vdupq_n_u32(0), vdupq_n_u32(0),
vdupq_n_u32(0) };
int h_limit = h > h_overflow ? h_overflow : h;
int ref_offset = 0;
int i = 0;
do {
uint16x8_t sum_lo[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0),
vdupq_n_u16(0) };
uint16x8_t sum_hi[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0),
vdupq_n_u16(0) };
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 < h_limit);
sum[0] = vpadalq_u16(sum[0], sum_lo[0]);
sum[0] = vpadalq_u16(sum[0], sum_hi[0]);
sum[1] = vpadalq_u16(sum[1], sum_lo[1]);
sum[1] = vpadalq_u16(sum[1], sum_hi[1]);
sum[2] = vpadalq_u16(sum[2], sum_lo[2]);
sum[2] = vpadalq_u16(sum[2], sum_hi[2]);
sum[3] = vpadalq_u16(sum[3], sum_lo[3]);
sum[3] = vpadalq_u16(sum[3], sum_hi[3]);
h_limit += h_overflow;
} while (i < h);
vst1q_u32(res, horizontal_add_4d_u32x4(sum));
}
static inline void sad128xhx4d_neon(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(src, src_stride, ref, ref_stride, res, 128, h, 32);
}
static inline void sad64xhx4d_neon(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(src, src_stride, ref, ref_stride, res, 64, h, 64);
}
static inline void sad32xhx4d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[4], int ref_stride,
uint32_t res[4], int h) {
uint16x8_t sum_lo[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0),
vdupq_n_u16(0) };
uint16x8_t sum_hi[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0),
vdupq_n_u16(0) };
int ref_offset = 0;
int i = h;
do {
const uint8x16_t s0 = vld1q_u8(src);
sad16_neon(s0, vld1q_u8(ref[0] + ref_offset), &sum_lo[0]);
sad16_neon(s0, vld1q_u8(ref[1] + ref_offset), &sum_lo[1]);
sad16_neon(s0, vld1q_u8(ref[2] + ref_offset), &sum_lo[2]);
sad16_neon(s0, vld1q_u8(ref[3] + ref_offset), &sum_lo[3]);
const uint8x16_t s1 = vld1q_u8(src + 16);
sad16_neon(s1, vld1q_u8(ref[0] + ref_offset + 16), &sum_hi[0]);
sad16_neon(s1, vld1q_u8(ref[1] + ref_offset + 16), &sum_hi[1]);
sad16_neon(s1, vld1q_u8(ref[2] + ref_offset + 16), &sum_hi[2]);
sad16_neon(s1, vld1q_u8(ref[3] + ref_offset + 16), &sum_hi[3]);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
vst1q_u32(res, horizontal_long_add_4d_u16x8(sum_lo, sum_hi));
}
static inline void sad16xhx4d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[4], int ref_stride,
uint32_t res[4], int h) {
uint16x8_t sum_u16[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0),
vdupq_n_u16(0) };
uint32x4_t sum_u32[4];
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_u16[0]);
sad16_neon(s, vld1q_u8(ref[1] + ref_offset), &sum_u16[1]);
sad16_neon(s, vld1q_u8(ref[2] + ref_offset), &sum_u16[2]);
sad16_neon(s, vld1q_u8(ref[3] + ref_offset), &sum_u16[3]);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
sum_u32[0] = vpaddlq_u16(sum_u16[0]);
sum_u32[1] = vpaddlq_u16(sum_u16[1]);
sum_u32[2] = vpaddlq_u16(sum_u16[2]);
sum_u32[3] = vpaddlq_u16(sum_u16[3]);
vst1q_u32(res, horizontal_add_4d_u32x4(sum_u32));
}
static inline void sad8xhx4d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[4], int ref_stride,
uint32_t res[4], int h) {
uint16x8_t sum[4];
uint8x8_t s = vld1_u8(src);
sum[0] = vabdl_u8(s, vld1_u8(ref[0]));
sum[1] = vabdl_u8(s, vld1_u8(ref[1]));
sum[2] = vabdl_u8(s, vld1_u8(ref[2]));
sum[3] = vabdl_u8(s, vld1_u8(ref[3]));
src += src_stride;
int ref_offset = ref_stride;
int i = h - 1;
do {
s = vld1_u8(src);
sum[0] = vabal_u8(sum[0], s, vld1_u8(ref[0] + ref_offset));
sum[1] = vabal_u8(sum[1], s, vld1_u8(ref[1] + ref_offset));
sum[2] = vabal_u8(sum[2], s, vld1_u8(ref[2] + ref_offset));
sum[3] = vabal_u8(sum[3], s, vld1_u8(ref[3] + ref_offset));
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0);
vst1q_u32(res, horizontal_add_4d_u16x8(sum));
}
static inline void sad4xhx4d_neon(const uint8_t *src, int src_stride,
const uint8_t *const ref[4], int ref_stride,
uint32_t res[4], int h) {
uint16x8_t sum[4];
uint8x8_t s = load_unaligned_u8(src, src_stride);
uint8x8_t r0 = load_unaligned_u8(ref[0], ref_stride);
uint8x8_t r1 = load_unaligned_u8(ref[1], ref_stride);
uint8x8_t r2 = load_unaligned_u8(ref[2], ref_stride);
uint8x8_t r3 = load_unaligned_u8(ref[3], ref_stride);
sum[0] = vabdl_u8(s, r0);
sum[1] = vabdl_u8(s, r1);
sum[2] = vabdl_u8(s, r2);
sum[3] = vabdl_u8(s, r3);
src += 2 * src_stride;
int ref_offset = 2 * ref_stride;
int i = h / 2;
while (--i != 0) {
s = load_unaligned_u8(src, src_stride);
r0 = load_unaligned_u8(ref[0] + ref_offset, ref_stride);
r1 = load_unaligned_u8(ref[1] + ref_offset, ref_stride);
r2 = load_unaligned_u8(ref[2] + ref_offset, ref_stride);
r3 = load_unaligned_u8(ref[3] + ref_offset, ref_stride);
sum[0] = vabal_u8(sum[0], s, r0);
sum[1] = vabal_u8(sum[1], s, r1);
sum[2] = vabal_u8(sum[2], s, r2);
sum[3] = vabal_u8(sum[3], s, r3);
src += 2 * src_stride;
ref_offset += 2 * ref_stride;
}
vst1q_u32(res, horizontal_add_4d_u16x8(sum));
}
#define SAD_WXH_4D_NEON(w, h) \
void aom_sad##w##x##h##x4d_neon(const uint8_t *src, int src_stride, \
const uint8_t *const ref[4], int ref_stride, \
uint32_t res[4]) { \
sad##w##xhx4d_neon(src, src_stride, ref, ref_stride, res, (h)); \
}
SAD_WXH_4D_NEON(4, 4)
SAD_WXH_4D_NEON(4, 8)
SAD_WXH_4D_NEON(8, 4)
SAD_WXH_4D_NEON(8, 8)
SAD_WXH_4D_NEON(8, 16)
SAD_WXH_4D_NEON(16, 8)
SAD_WXH_4D_NEON(16, 16)
SAD_WXH_4D_NEON(16, 32)
SAD_WXH_4D_NEON(32, 16)
SAD_WXH_4D_NEON(32, 32)
SAD_WXH_4D_NEON(32, 64)
SAD_WXH_4D_NEON(64, 32)
SAD_WXH_4D_NEON(64, 64)
SAD_WXH_4D_NEON(64, 128)
SAD_WXH_4D_NEON(128, 64)
SAD_WXH_4D_NEON(128, 128)
#if !CONFIG_REALTIME_ONLY
SAD_WXH_4D_NEON(4, 16)
SAD_WXH_4D_NEON(8, 32)
SAD_WXH_4D_NEON(16, 4)
SAD_WXH_4D_NEON(16, 64)
SAD_WXH_4D_NEON(32, 8)
SAD_WXH_4D_NEON(64, 16)
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_WXH_4D_NEON
#define SAD_SKIP_WXH_4D_NEON(w, h) \
void aom_sad_skip_##w##x##h##x4d_neon(const uint8_t *src, int src_stride, \
const uint8_t *const ref[4], \
int ref_stride, uint32_t res[4]) { \
sad##w##xhx4d_neon(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(8, 16)
SAD_SKIP_WXH_4D_NEON(16, 16)
SAD_SKIP_WXH_4D_NEON(16, 32)
SAD_SKIP_WXH_4D_NEON(32, 16)
SAD_SKIP_WXH_4D_NEON(32, 32)
SAD_SKIP_WXH_4D_NEON(32, 64)
SAD_SKIP_WXH_4D_NEON(64, 32)
SAD_SKIP_WXH_4D_NEON(64, 64)
SAD_SKIP_WXH_4D_NEON(64, 128)
SAD_SKIP_WXH_4D_NEON(128, 64)
SAD_SKIP_WXH_4D_NEON(128, 128)
#if !CONFIG_REALTIME_ONLY
SAD_SKIP_WXH_4D_NEON(4, 16)
SAD_SKIP_WXH_4D_NEON(8, 32)
SAD_SKIP_WXH_4D_NEON(16, 64)
SAD_SKIP_WXH_4D_NEON(64, 16)
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_SKIP_WXH_4D_NEON