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/*
* Copyright (c) 2017 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VPX_VPX_DSP_ARM_SUM_NEON_H_
#define VPX_VPX_DSP_ARM_SUM_NEON_H_
#include <arm_neon.h>
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
static INLINE uint16_t horizontal_add_uint8x4(const uint8x8_t a) {
#if VPX_ARCH_AARCH64
return vaddlv_u8(a);
#else
const uint16x4_t b = vpaddl_u8(a);
const uint16x4_t c = vpadd_u16(b, b);
return vget_lane_u16(c, 0);
#endif
}
static INLINE uint16_t horizontal_add_uint8x8(const uint8x8_t a) {
#if VPX_ARCH_AARCH64
return vaddlv_u8(a);
#else
const uint16x4_t b = vpaddl_u8(a);
const uint16x4_t c = vpadd_u16(b, b);
const uint16x4_t d = vpadd_u16(c, c);
return vget_lane_u16(d, 0);
#endif
}
static INLINE uint16_t horizontal_add_uint8x16(const uint8x16_t a) {
#if VPX_ARCH_AARCH64
return vaddlvq_u8(a);
#else
const uint16x8_t b = vpaddlq_u8(a);
const uint16x4_t c = vadd_u16(vget_low_u16(b), vget_high_u16(b));
const uint16x4_t d = vpadd_u16(c, c);
const uint16x4_t e = vpadd_u16(d, d);
return vget_lane_u16(e, 0);
#endif
}
static INLINE uint16_t horizontal_add_uint16x4(const uint16x4_t a) {
#if VPX_ARCH_AARCH64
return vaddv_u16(a);
#else
const uint16x4_t b = vpadd_u16(a, a);
const uint16x4_t c = vpadd_u16(b, b);
return vget_lane_u16(c, 0);
#endif
}
static INLINE int32_t horizontal_add_int16x8(const int16x8_t a) {
#if VPX_ARCH_AARCH64
return vaddlvq_s16(a);
#else
const int32x4_t b = vpaddlq_s16(a);
const int64x2_t c = vpaddlq_s32(b);
const int32x2_t d = vadd_s32(vreinterpret_s32_s64(vget_low_s64(c)),
vreinterpret_s32_s64(vget_high_s64(c)));
return vget_lane_s32(d, 0);
#endif
}
static INLINE uint32_t horizontal_add_uint16x8(const uint16x8_t a) {
#if VPX_ARCH_AARCH64
return vaddlvq_u16(a);
#else
const uint32x4_t b = vpaddlq_u16(a);
const uint64x2_t c = vpaddlq_u32(b);
const uint32x2_t d = vadd_u32(vreinterpret_u32_u64(vget_low_u64(c)),
vreinterpret_u32_u64(vget_high_u64(c)));
return vget_lane_u32(d, 0);
#endif
}
static INLINE uint32x4_t horizontal_add_4d_uint16x8(const uint16x8_t sum[4]) {
#if VPX_ARCH_AARCH64
const uint16x8_t a0 = vpaddq_u16(sum[0], sum[1]);
const uint16x8_t a1 = vpaddq_u16(sum[2], sum[3]);
const uint16x8_t b0 = vpaddq_u16(a0, a1);
return vpaddlq_u16(b0);
#else
const uint16x4_t a0 = vadd_u16(vget_low_u16(sum[0]), vget_high_u16(sum[0]));
const uint16x4_t a1 = vadd_u16(vget_low_u16(sum[1]), vget_high_u16(sum[1]));
const uint16x4_t a2 = vadd_u16(vget_low_u16(sum[2]), vget_high_u16(sum[2]));
const uint16x4_t a3 = vadd_u16(vget_low_u16(sum[3]), vget_high_u16(sum[3]));
const uint16x4_t b0 = vpadd_u16(a0, a1);
const uint16x4_t b1 = vpadd_u16(a2, a3);
return vpaddlq_u16(vcombine_u16(b0, b1));
#endif
}
static INLINE uint32_t horizontal_long_add_uint16x8(const uint16x8_t vec_lo,
const uint16x8_t vec_hi) {
#if VPX_ARCH_AARCH64
return vaddlvq_u16(vec_lo) + vaddlvq_u16(vec_hi);
#else
const uint32x4_t vec_l_lo =
vaddl_u16(vget_low_u16(vec_lo), vget_high_u16(vec_lo));
const uint32x4_t vec_l_hi =
vaddl_u16(vget_low_u16(vec_hi), vget_high_u16(vec_hi));
const uint32x4_t a = vaddq_u32(vec_l_lo, vec_l_hi);
const uint64x2_t b = vpaddlq_u32(a);
const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
vreinterpret_u32_u64(vget_high_u64(b)));
return vget_lane_u32(c, 0);
#endif
}
static INLINE uint32x4_t horizontal_long_add_4d_uint16x8(
const uint16x8_t sum_lo[4], const uint16x8_t sum_hi[4]) {
const uint32x4_t a0 = vpaddlq_u16(sum_lo[0]);
const uint32x4_t a1 = vpaddlq_u16(sum_lo[1]);
const uint32x4_t a2 = vpaddlq_u16(sum_lo[2]);
const uint32x4_t a3 = vpaddlq_u16(sum_lo[3]);
const uint32x4_t b0 = vpadalq_u16(a0, sum_hi[0]);
const uint32x4_t b1 = vpadalq_u16(a1, sum_hi[1]);
const uint32x4_t b2 = vpadalq_u16(a2, sum_hi[2]);
const uint32x4_t b3 = vpadalq_u16(a3, sum_hi[3]);
#if VPX_ARCH_AARCH64
const uint32x4_t c0 = vpaddq_u32(b0, b1);
const uint32x4_t c1 = vpaddq_u32(b2, b3);
return vpaddq_u32(c0, c1);
#else
const uint32x2_t c0 = vadd_u32(vget_low_u32(b0), vget_high_u32(b0));
const uint32x2_t c1 = vadd_u32(vget_low_u32(b1), vget_high_u32(b1));
const uint32x2_t c2 = vadd_u32(vget_low_u32(b2), vget_high_u32(b2));
const uint32x2_t c3 = vadd_u32(vget_low_u32(b3), vget_high_u32(b3));
const uint32x2_t d0 = vpadd_u32(c0, c1);
const uint32x2_t d1 = vpadd_u32(c2, c3);
return vcombine_u32(d0, d1);
#endif
}
static INLINE int32_t horizontal_add_int32x2(const int32x2_t a) {
#if VPX_ARCH_AARCH64
return vaddv_s32(a);
#else
return vget_lane_s32(a, 0) + vget_lane_s32(a, 1);
#endif
}
static INLINE uint32_t horizontal_add_uint32x2(const uint32x2_t a) {
#if VPX_ARCH_AARCH64
return vaddv_u32(a);
#else
const uint64x1_t b = vpaddl_u32(a);
return vget_lane_u32(vreinterpret_u32_u64(b), 0);
#endif
}
static INLINE int32_t horizontal_add_int32x4(const int32x4_t a) {
#if VPX_ARCH_AARCH64
return vaddvq_s32(a);
#else
const int64x2_t b = vpaddlq_s32(a);
const int32x2_t c = vadd_s32(vreinterpret_s32_s64(vget_low_s64(b)),
vreinterpret_s32_s64(vget_high_s64(b)));
return vget_lane_s32(c, 0);
#endif
}
static INLINE uint32_t horizontal_add_uint32x4(const uint32x4_t a) {
#if VPX_ARCH_AARCH64
return vaddvq_u32(a);
#else
const uint64x2_t b = vpaddlq_u32(a);
const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
vreinterpret_u32_u64(vget_high_u64(b)));
return vget_lane_u32(c, 0);
#endif
}
static INLINE uint32x4_t horizontal_add_4d_uint32x4(const uint32x4_t sum[4]) {
#if VPX_ARCH_AARCH64
uint32x4_t res01 = vpaddq_u32(sum[0], sum[1]);
uint32x4_t res23 = vpaddq_u32(sum[2], sum[3]);
return vpaddq_u32(res01, res23);
#else
uint32x4_t res = vdupq_n_u32(0);
res = vsetq_lane_u32(horizontal_add_uint32x4(sum[0]), res, 0);
res = vsetq_lane_u32(horizontal_add_uint32x4(sum[1]), res, 1);
res = vsetq_lane_u32(horizontal_add_uint32x4(sum[2]), res, 2);
res = vsetq_lane_u32(horizontal_add_uint32x4(sum[3]), res, 3);
return res;
#endif
}
static INLINE uint64_t horizontal_long_add_uint32x4(const uint32x4_t a) {
#if VPX_ARCH_AARCH64
return vaddlvq_u32(a);
#else
const uint64x2_t b = vpaddlq_u32(a);
return vgetq_lane_u64(b, 0) + vgetq_lane_u64(b, 1);
#endif
}
static INLINE int64_t horizontal_add_int64x2(const int64x2_t a) {
#if VPX_ARCH_AARCH64
return vaddvq_s64(a);
#else
return vgetq_lane_s64(a, 0) + vgetq_lane_s64(a, 1);
#endif
}
static INLINE uint64_t horizontal_add_uint64x2(const uint64x2_t a) {
#if VPX_ARCH_AARCH64
return vaddvq_u64(a);
#else
return vgetq_lane_u64(a, 0) + vgetq_lane_u64(a, 1);
#endif
}
static INLINE uint64_t horizontal_long_add_uint32x4_x2(const uint32x4_t a[2]) {
return horizontal_long_add_uint32x4(a[0]) +
horizontal_long_add_uint32x4(a[1]);
}
static INLINE uint64_t horizontal_long_add_uint32x4_x4(const uint32x4_t a[4]) {
uint64x2_t sum = vpaddlq_u32(a[0]);
sum = vpadalq_u32(sum, a[1]);
sum = vpadalq_u32(sum, a[2]);
sum = vpadalq_u32(sum, a[3]);
return horizontal_add_uint64x2(sum);
}
static INLINE uint64_t horizontal_long_add_uint32x4_x8(const uint32x4_t a[8]) {
uint64x2_t sum[2];
sum[0] = vpaddlq_u32(a[0]);
sum[1] = vpaddlq_u32(a[1]);
sum[0] = vpadalq_u32(sum[0], a[2]);
sum[1] = vpadalq_u32(sum[1], a[3]);
sum[0] = vpadalq_u32(sum[0], a[4]);
sum[1] = vpadalq_u32(sum[1], a[5]);
sum[0] = vpadalq_u32(sum[0], a[6]);
sum[1] = vpadalq_u32(sum[1], a[7]);
return horizontal_add_uint64x2(vaddq_u64(sum[0], sum[1]));
}
static INLINE uint64_t
horizontal_long_add_uint32x4_x16(const uint32x4_t a[16]) {
uint64x2_t sum[2];
sum[0] = vpaddlq_u32(a[0]);
sum[1] = vpaddlq_u32(a[1]);
sum[0] = vpadalq_u32(sum[0], a[2]);
sum[1] = vpadalq_u32(sum[1], a[3]);
sum[0] = vpadalq_u32(sum[0], a[4]);
sum[1] = vpadalq_u32(sum[1], a[5]);
sum[0] = vpadalq_u32(sum[0], a[6]);
sum[1] = vpadalq_u32(sum[1], a[7]);
sum[0] = vpadalq_u32(sum[0], a[8]);
sum[1] = vpadalq_u32(sum[1], a[9]);
sum[0] = vpadalq_u32(sum[0], a[10]);
sum[1] = vpadalq_u32(sum[1], a[11]);
sum[0] = vpadalq_u32(sum[0], a[12]);
sum[1] = vpadalq_u32(sum[1], a[13]);
sum[0] = vpadalq_u32(sum[0], a[14]);
sum[1] = vpadalq_u32(sum[1], a[15]);
return horizontal_add_uint64x2(vaddq_u64(sum[0], sum[1]));
}
#endif // VPX_VPX_DSP_ARM_SUM_NEON_H_
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