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/*
* Copyright (c) 2018, 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 <assert.h>
#include "aom/aom_integer.h"
#include "aom_dsp/aom_dsp_common.h"
#include "aom_dsp/blend.h"
#include "aom_ports/mem.h"
#include "av1/common/arm/mem_neon.h"
#include "config/aom_dsp_rtcd.h"
static INLINE void blend8x1(int16x8_t mask, int16x8_t src_0, int16x8_t src_1,
const int16x8_t v_maxval, int16x8_t *res) {
int32x4_t im_res_low, im_res_high;
const int16x8_t max_minus_mask = vsubq_s16(v_maxval, mask);
im_res_low = vmull_s16(vget_low_s16(mask), vget_low_s16(src_0));
im_res_low =
vmlal_s16(im_res_low, vget_low_s16(max_minus_mask), vget_low_s16(src_1));
im_res_high = vmull_s16(vget_high_s16(mask), vget_high_s16(src_0));
im_res_high = vmlal_s16(im_res_high, vget_high_s16(max_minus_mask),
vget_high_s16(src_1));
*res = vcombine_s16(vshrn_n_s32(im_res_low, AOM_BLEND_A64_ROUND_BITS),
vshrn_n_s32(im_res_high, AOM_BLEND_A64_ROUND_BITS));
}
static INLINE void blend_8x4(uint8_t *dst, uint32_t dst_stride,
const CONV_BUF_TYPE *src0, uint32_t src0_stride,
const CONV_BUF_TYPE *src1, uint32_t src1_stride,
int16x8_t mask0, int16x8_t mask1, int16x8_t mask2,
int16x8_t mask3, const int16x8_t v_maxval,
const uint16x8_t vec_round_offset,
const int16x8_t vec_round_bits) {
int16x8_t src0_0, src0_1, src0_2, src0_3;
int16x8_t src1_0, src1_1, src1_2, src1_3;
int16x8_t im_res_0, im_res_1, im_res_2, im_res_3;
load_s16_8x4((int16_t *)src0, (int32_t)src0_stride, &src0_0, &src0_1, &src0_2,
&src0_3);
load_s16_8x4((int16_t *)src1, (int32_t)src1_stride, &src1_0, &src1_1, &src1_2,
&src1_3);
blend8x1(mask0, src0_0, src1_0, v_maxval, &im_res_0);
blend8x1(mask1, src0_1, src1_1, v_maxval, &im_res_1);
blend8x1(mask2, src0_2, src1_2, v_maxval, &im_res_2);
blend8x1(mask3, src0_3, src1_3, v_maxval, &im_res_3);
uint16x8_t im_res1_0 =
vqsubq_u16(vreinterpretq_u16_s16(im_res_0), vec_round_offset);
uint16x8_t im_res1_1 =
vqsubq_u16(vreinterpretq_u16_s16(im_res_1), vec_round_offset);
uint16x8_t im_res1_2 =
vqsubq_u16(vreinterpretq_u16_s16(im_res_2), vec_round_offset);
uint16x8_t im_res1_3 =
vqsubq_u16(vreinterpretq_u16_s16(im_res_3), vec_round_offset);
im_res_0 = vshlq_s16(vreinterpretq_s16_u16(im_res1_0), vec_round_bits);
im_res_1 = vshlq_s16(vreinterpretq_s16_u16(im_res1_1), vec_round_bits);
im_res_2 = vshlq_s16(vreinterpretq_s16_u16(im_res1_2), vec_round_bits);
im_res_3 = vshlq_s16(vreinterpretq_s16_u16(im_res1_3), vec_round_bits);
vst1_u8((dst + 0 * dst_stride), vqmovun_s16(im_res_0));
vst1_u8((dst + 1 * dst_stride), vqmovun_s16(im_res_1));
vst1_u8((dst + 2 * dst_stride), vqmovun_s16(im_res_2));
vst1_u8((dst + 3 * dst_stride), vqmovun_s16(im_res_3));
}
static INLINE void blend_4x4(uint8_t *dst, uint32_t dst_stride,
const CONV_BUF_TYPE *src0, uint32_t src0_stride,
const CONV_BUF_TYPE *src1, uint32_t src1_stride,
int16x4_t mask0, int16x4_t mask1, int16x4_t mask2,
int16x4_t mask3, const int16x8_t v_maxval,
const uint16x8_t vec_round_offset,
const int16x8_t vec_round_bits) {
int16x8_t src0_0, src0_1;
int16x8_t src1_0, src1_1;
uint64x2_t tu0 = vdupq_n_u64(0), tu1 = vdupq_n_u64(0), tu2 = vdupq_n_u64(0),
tu3 = vdupq_n_u64(0);
int16x8_t mask0_1, mask2_3;
int16x8_t res0, res1;
load_unaligned_u16_4x4(src0, src0_stride, &tu0, &tu1);
load_unaligned_u16_4x4(src1, src1_stride, &tu2, &tu3);
src0_0 = vreinterpretq_s16_u64(tu0);
src0_1 = vreinterpretq_s16_u64(tu1);
src1_0 = vreinterpretq_s16_u64(tu2);
src1_1 = vreinterpretq_s16_u64(tu3);
mask0_1 = vcombine_s16(mask0, mask1);
mask2_3 = vcombine_s16(mask2, mask3);
blend8x1(mask0_1, src0_0, src1_0, v_maxval, &res0);
blend8x1(mask2_3, src0_1, src1_1, v_maxval, &res1);
uint16x8_t im_res_0 =
vqsubq_u16(vreinterpretq_u16_s16(res0), vec_round_offset);
uint16x8_t im_res_1 =
vqsubq_u16(vreinterpretq_u16_s16(res1), vec_round_offset);
src0_0 = vshlq_s16(vreinterpretq_s16_u16(im_res_0), vec_round_bits);
src0_1 = vshlq_s16(vreinterpretq_s16_u16(im_res_1), vec_round_bits);
uint8x8_t res_0 = vqmovun_s16(src0_0);
uint8x8_t res_1 = vqmovun_s16(src0_1);
vst1_lane_u32((uint32_t *)(dst + 0 * dst_stride), vreinterpret_u32_u8(res_0),
0);
vst1_lane_u32((uint32_t *)(dst + 1 * dst_stride), vreinterpret_u32_u8(res_0),
1);
vst1_lane_u32((uint32_t *)(dst + 2 * dst_stride), vreinterpret_u32_u8(res_1),
0);
vst1_lane_u32((uint32_t *)(dst + 3 * dst_stride), vreinterpret_u32_u8(res_1),
1);
}
void aom_lowbd_blend_a64_d16_mask_neon(
uint8_t *dst, uint32_t dst_stride, const CONV_BUF_TYPE *src0,
uint32_t src0_stride, const CONV_BUF_TYPE *src1, uint32_t src1_stride,
const uint8_t *mask, uint32_t mask_stride, int w, int h, int subw, int subh,
ConvolveParams *conv_params) {
int i = 0;
const int bd = 8;
int w_tmp = w;
const uint8_t *mask_tmp = mask;
const CONV_BUF_TYPE *src0_tmp = src0;
const CONV_BUF_TYPE *src1_tmp = src1;
uint8_t *dst_tmp = dst;
const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
const int round_offset = (1 << (offset_bits - conv_params->round_1)) +
(1 << (offset_bits - conv_params->round_1 - 1));
const int round_bits =
2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
assert(IMPLIES((void *)src0 == dst, src0_stride == dst_stride));
assert(IMPLIES((void *)src1 == dst, src1_stride == dst_stride));
assert(h >= 4);
assert(w >= 4);
assert(IS_POWER_OF_TWO(h));
assert(IS_POWER_OF_TWO(w));
uint8x8_t s0, s1, s2, s3;
uint32x2_t tu0 = vdup_n_u32(0), tu1 = vdup_n_u32(0), tu2 = vdup_n_u32(0),
tu3 = vdup_n_u32(0);
uint8x16_t t0, t1, t2, t3, t4, t5, t6, t7;
int16x8_t mask0, mask1, mask2, mask3;
int16x8_t mask4, mask5, mask6, mask7;
int32x4_t m0_32, m1_32, m2_32, m3_32;
int32x4_t m4_32, m5_32, m6_32, m7_32;
uint8x8_t mask0_l, mask1_l, mask2_l, mask3_l;
uint8x8_t mask4_l, mask5_l, mask6_l, mask7_l;
int16x4_t mask0_low, mask1_low, mask2_low, mask3_low;
const uint16x4_t vec_zero = vdup_n_u16(0);
const uint16_t offset = round_offset - (1 << (round_bits - 1));
const int16x8_t v_maxval = vdupq_n_s16(AOM_BLEND_A64_MAX_ALPHA);
const int16x8_t vec_round_bits = vdupq_n_s16(-round_bits);
const uint16x8_t vec_offset = vdupq_n_u16(offset);
if (subw == 0 && subh == 0) {
if (w_tmp > 7) {
do {
w_tmp = w;
do {
load_u8_8x4(mask_tmp, mask_stride, &s0, &s1, &s2, &s3);
mask0 = vmovl_s8(vreinterpret_s8_u8(s0));
mask1 = vmovl_s8(vreinterpret_s8_u8(s1));
mask2 = vmovl_s8(vreinterpret_s8_u8(s2));
mask3 = vmovl_s8(vreinterpret_s8_u8(s3));
blend_8x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0, mask1, mask2, mask3, v_maxval,
vec_offset, vec_round_bits);
w_tmp -= 8;
mask_tmp += 8;
dst_tmp += 8;
src0_tmp += 8;
src1_tmp += 8;
} while (w_tmp > 7);
i += 4;
mask_tmp += (4 * mask_stride) - w;
dst_tmp += (4 * dst_stride) - w;
src0_tmp += (4 * src0_stride) - w;
src1_tmp += (4 * src1_stride) - w;
} while (i < h);
} else {
do {
load_unaligned_u8_4x4(mask_tmp, mask_stride, &tu0, &tu1);
mask0 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu0)));
mask1 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu1)));
mask0_low = vget_low_s16(mask0);
mask1_low = vget_high_s16(mask0);
mask2_low = vget_low_s16(mask1);
mask3_low = vget_high_s16(mask1);
blend_4x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0_low, mask1_low, mask2_low, mask3_low,
v_maxval, vec_offset, vec_round_bits);
i += 4;
mask_tmp += (4 * mask_stride);
dst_tmp += (4 * dst_stride);
src0_tmp += (4 * src0_stride);
src1_tmp += (4 * src1_stride);
} while (i < h);
}
} else if (subw == 1 && subh == 1) {
if (w_tmp > 7) {
do {
w_tmp = w;
do {
load_u8_16x8(mask_tmp, mask_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6,
&t7);
mask0 =
vreinterpretq_s16_u16(vaddl_u8(vget_low_u8(t0), vget_low_u8(t1)));
mask1 =
vreinterpretq_s16_u16(vaddl_u8(vget_low_u8(t2), vget_low_u8(t3)));
mask2 =
vreinterpretq_s16_u16(vaddl_u8(vget_low_u8(t4), vget_low_u8(t5)));
mask3 =
vreinterpretq_s16_u16(vaddl_u8(vget_low_u8(t6), vget_low_u8(t7)));
mask4 = vreinterpretq_s16_u16(
vaddl_u8(vget_high_u8(t0), vget_high_u8(t1)));
mask5 = vreinterpretq_s16_u16(
vaddl_u8(vget_high_u8(t2), vget_high_u8(t3)));
mask6 = vreinterpretq_s16_u16(
vaddl_u8(vget_high_u8(t4), vget_high_u8(t5)));
mask7 = vreinterpretq_s16_u16(
vaddl_u8(vget_high_u8(t6), vget_high_u8(t7)));
m0_32 = vpaddlq_s16(mask0);
m1_32 = vpaddlq_s16(mask1);
m2_32 = vpaddlq_s16(mask2);
m3_32 = vpaddlq_s16(mask3);
m4_32 = vpaddlq_s16(mask4);
m5_32 = vpaddlq_s16(mask5);
m6_32 = vpaddlq_s16(mask6);
m7_32 = vpaddlq_s16(mask7);
mask0 =
vcombine_s16(vqrshrn_n_s32(m0_32, 2), vqrshrn_n_s32(m4_32, 2));
mask1 =
vcombine_s16(vqrshrn_n_s32(m1_32, 2), vqrshrn_n_s32(m5_32, 2));
mask2 =
vcombine_s16(vqrshrn_n_s32(m2_32, 2), vqrshrn_n_s32(m6_32, 2));
mask3 =
vcombine_s16(vqrshrn_n_s32(m3_32, 2), vqrshrn_n_s32(m7_32, 2));
blend_8x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0, mask1, mask2, mask3, v_maxval,
vec_offset, vec_round_bits);
w_tmp -= 8;
mask_tmp += 16;
dst_tmp += 8;
src0_tmp += 8;
src1_tmp += 8;
} while (w_tmp > 7);
i += 4;
mask_tmp += (8 * mask_stride) - (2 * w);
dst_tmp += (4 * dst_stride) - w;
src0_tmp += (4 * src0_stride) - w;
src1_tmp += (4 * src1_stride) - w;
} while (i < h);
} else {
do {
load_u8_8x8(mask_tmp, mask_stride, &mask0_l, &mask1_l, &mask2_l,
&mask3_l, &mask4_l, &mask5_l, &mask6_l, &mask7_l);
mask0 = vreinterpretq_s16_u16(vaddl_u8(mask0_l, mask1_l));
mask1 = vreinterpretq_s16_u16(vaddl_u8(mask2_l, mask3_l));
mask2 = vreinterpretq_s16_u16(vaddl_u8(mask4_l, mask5_l));
mask3 = vreinterpretq_s16_u16(vaddl_u8(mask6_l, mask7_l));
m0_32 = vpaddlq_s16(mask0);
m1_32 = vpaddlq_s16(mask1);
m2_32 = vpaddlq_s16(mask2);
m3_32 = vpaddlq_s16(mask3);
mask0_low = vqrshrn_n_s32(m0_32, 2);
mask1_low = vqrshrn_n_s32(m1_32, 2);
mask2_low = vqrshrn_n_s32(m2_32, 2);
mask3_low = vqrshrn_n_s32(m3_32, 2);
blend_4x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0_low, mask1_low, mask2_low, mask3_low,
v_maxval, vec_offset, vec_round_bits);
i += 4;
mask_tmp += (8 * mask_stride);
dst_tmp += (4 * dst_stride);
src0_tmp += (4 * src0_stride);
src1_tmp += (4 * src1_stride);
} while (i < h);
}
} else if (subw == 1 && subh == 0) {
if (w_tmp > 7) {
do {
w_tmp = w;
do {
load_u8_16x4(mask_tmp, mask_stride, &t0, &t1, &t2, &t3);
mask0 = vreinterpretq_s16_u16(vcombine_u16(
vpaddl_u8(vget_low_u8(t0)), vpaddl_u8(vget_high_u8(t0))));
mask1 = vreinterpretq_s16_u16(vcombine_u16(
vpaddl_u8(vget_low_u8(t1)), vpaddl_u8(vget_high_u8(t1))));
mask2 = vreinterpretq_s16_u16(vcombine_u16(
vpaddl_u8(vget_low_u8(t2)), vpaddl_u8(vget_high_u8(t2))));
mask3 = vreinterpretq_s16_u16(vcombine_u16(
vpaddl_u8(vget_low_u8(t3)), vpaddl_u8(vget_high_u8(t3))));
mask0 = vmovl_s8(vqrshrn_n_s16(mask0, 1));
mask1 = vmovl_s8(vqrshrn_n_s16(mask1, 1));
mask2 = vmovl_s8(vqrshrn_n_s16(mask2, 1));
mask3 = vmovl_s8(vqrshrn_n_s16(mask3, 1));
blend_8x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0, mask1, mask2, mask3, v_maxval,
vec_offset, vec_round_bits);
w_tmp -= 8;
mask_tmp += 16;
dst_tmp += 8;
src0_tmp += 8;
src1_tmp += 8;
} while (w_tmp > 7);
i += 4;
mask_tmp += (4 * mask_stride) - (2 * w);
dst_tmp += (4 * dst_stride) - w;
src0_tmp += (4 * src0_stride) - w;
src1_tmp += (4 * src1_stride) - w;
} while (i < h);
} else {
do {
load_u8_8x4(mask_tmp, mask_stride, &mask0_l, &mask1_l, &mask2_l,
&mask3_l);
mask0 =
vreinterpretq_s16_u16(vcombine_u16(vpaddl_u8(mask0_l), vec_zero));
mask1 =
vreinterpretq_s16_u16(vcombine_u16(vpaddl_u8(mask1_l), vec_zero));
mask2 =
vreinterpretq_s16_u16(vcombine_u16(vpaddl_u8(mask2_l), vec_zero));
mask3 =
vreinterpretq_s16_u16(vcombine_u16(vpaddl_u8(mask3_l), vec_zero));
mask0_low = vget_low_s16(vmovl_s8(vqrshrn_n_s16(mask0, 1)));
mask1_low = vget_low_s16(vmovl_s8(vqrshrn_n_s16(mask1, 1)));
mask2_low = vget_low_s16(vmovl_s8(vqrshrn_n_s16(mask2, 1)));
mask3_low = vget_low_s16(vmovl_s8(vqrshrn_n_s16(mask3, 1)));
blend_4x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0_low, mask1_low, mask2_low, mask3_low,
v_maxval, vec_offset, vec_round_bits);
i += 4;
mask_tmp += (4 * mask_stride);
dst_tmp += (4 * dst_stride);
src0_tmp += (4 * src0_stride);
src1_tmp += (4 * src1_stride);
} while (i < h);
}
} else {
if (w_tmp > 7) {
do {
w_tmp = w;
do {
load_u8_8x8(mask_tmp, mask_stride, &mask0_l, &mask1_l, &mask2_l,
&mask3_l, &mask4_l, &mask5_l, &mask6_l, &mask7_l);
mask0 = vreinterpretq_s16_u16(vaddl_u8(mask0_l, mask1_l));
mask1 = vreinterpretq_s16_u16(vaddl_u8(mask2_l, mask3_l));
mask2 = vreinterpretq_s16_u16(vaddl_u8(mask4_l, mask5_l));
mask3 = vreinterpretq_s16_u16(vaddl_u8(mask6_l, mask7_l));
mask0 = vmovl_s8(vqrshrn_n_s16(mask0, 1));
mask1 = vmovl_s8(vqrshrn_n_s16(mask1, 1));
mask2 = vmovl_s8(vqrshrn_n_s16(mask2, 1));
mask3 = vmovl_s8(vqrshrn_n_s16(mask3, 1));
blend_8x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0, mask1, mask2, mask3, v_maxval,
vec_offset, vec_round_bits);
w_tmp -= 8;
mask_tmp += 8;
dst_tmp += 8;
src0_tmp += 8;
src1_tmp += 8;
} while (w_tmp > 7);
i += 4;
mask_tmp += (8 * mask_stride) - w;
dst_tmp += (4 * dst_stride) - w;
src0_tmp += (4 * src0_stride) - w;
src1_tmp += (4 * src1_stride) - w;
} while (i < h);
} else {
do {
load_unaligned_u8_4x4(mask_tmp, 2 * mask_stride, &tu0, &tu1);
load_unaligned_u8_4x4(mask_tmp + mask_stride, 2 * mask_stride, &tu2,
&tu3);
s0 = vreinterpret_u8_u32(tu0);
s1 = vreinterpret_u8_u32(tu1);
s2 = vreinterpret_u8_u32(tu2);
s3 = vreinterpret_u8_u32(tu3);
mask0 = vreinterpretq_s16_u16(vaddl_u8(s0, s2));
mask1 = vreinterpretq_s16_u16(vaddl_u8(s1, s3));
mask0 = vmovl_s8(vqrshrn_n_s16(mask0, 1));
mask1 = vmovl_s8(vqrshrn_n_s16(mask1, 1));
mask0_low = vget_low_s16(mask0);
mask1_low = vget_high_s16(mask0);
mask2_low = vget_low_s16(mask1);
mask3_low = vget_high_s16(mask1);
blend_4x4(dst_tmp, dst_stride, src0_tmp, src0_stride, src1_tmp,
src1_stride, mask0_low, mask1_low, mask2_low, mask3_low,
v_maxval, vec_offset, vec_round_bits);
i += 4;
mask_tmp += (8 * mask_stride);
dst_tmp += (4 * dst_stride);
src0_tmp += (4 * src0_stride);
src1_tmp += (4 * src1_stride);
} while (i < h);
}
}
}
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