Source code
Revision control
Copy as Markdown
Other Tools
/*
* Copyright (c) 2024, 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 <assert.h>
#include <arm_neon.h>
#include "config/aom_config.h"
#include "config/av1_rtcd.h"
#include "aom_dsp/aom_dsp_common.h"
#include "aom_dsp/arm/mem_neon.h"
#include "aom_ports/mem.h"
#define ROUND_SHIFT 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS
static inline void highbd_12_comp_avg_neon(const uint16_t *src_ptr,
int src_stride, uint16_t *dst_ptr,
int dst_stride, int w, int h,
ConvolveParams *conv_params) {
const int offset_bits = 12 + 2 * FILTER_BITS - ROUND0_BITS - 2;
const int offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
(1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
CONV_BUF_TYPE *ref_ptr = conv_params->dst;
const int ref_stride = conv_params->dst_stride;
const uint16x4_t offset_vec = vdup_n_u16((uint16_t)offset);
const uint16x8_t max = vdupq_n_u16((1 << 12) - 1);
if (w == 4) {
do {
const uint16x4_t src = vld1_u16(src_ptr);
const uint16x4_t ref = vld1_u16(ref_ptr);
uint16x4_t avg = vhadd_u16(src, ref);
int32x4_t d0 = vreinterpretq_s32_u32(vsubl_u16(avg, offset_vec));
uint16x4_t d0_u16 = vqrshrun_n_s32(d0, ROUND_SHIFT - 2);
d0_u16 = vmin_u16(d0_u16, vget_low_u16(max));
vst1_u16(dst_ptr, d0_u16);
src_ptr += src_stride;
ref_ptr += ref_stride;
dst_ptr += dst_stride;
} while (--h != 0);
} else {
do {
int width = w;
const uint16_t *src = src_ptr;
const uint16_t *ref = ref_ptr;
uint16_t *dst = dst_ptr;
do {
const uint16x8_t s = vld1q_u16(src);
const uint16x8_t r = vld1q_u16(ref);
uint16x8_t avg = vhaddq_u16(s, r);
int32x4_t d0_lo =
vreinterpretq_s32_u32(vsubl_u16(vget_low_u16(avg), offset_vec));
int32x4_t d0_hi =
vreinterpretq_s32_u32(vsubl_u16(vget_high_u16(avg), offset_vec));
uint16x8_t d0 = vcombine_u16(vqrshrun_n_s32(d0_lo, ROUND_SHIFT - 2),
vqrshrun_n_s32(d0_hi, ROUND_SHIFT - 2));
d0 = vminq_u16(d0, max);
vst1q_u16(dst, d0);
src += 8;
ref += 8;
dst += 8;
width -= 8;
} while (width != 0);
src_ptr += src_stride;
ref_ptr += ref_stride;
dst_ptr += dst_stride;
} while (--h != 0);
}
}
static inline void highbd_comp_avg_neon(const uint16_t *src_ptr, int src_stride,
uint16_t *dst_ptr, int dst_stride,
int w, int h,
ConvolveParams *conv_params,
const int bd) {
const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
const int offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
(1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
CONV_BUF_TYPE *ref_ptr = conv_params->dst;
const int ref_stride = conv_params->dst_stride;
const uint16x4_t offset_vec = vdup_n_u16((uint16_t)offset);
const uint16x8_t max = vdupq_n_u16((1 << bd) - 1);
if (w == 4) {
do {
const uint16x4_t src = vld1_u16(src_ptr);
const uint16x4_t ref = vld1_u16(ref_ptr);
uint16x4_t avg = vhadd_u16(src, ref);
int32x4_t d0 = vreinterpretq_s32_u32(vsubl_u16(avg, offset_vec));
uint16x4_t d0_u16 = vqrshrun_n_s32(d0, ROUND_SHIFT);
d0_u16 = vmin_u16(d0_u16, vget_low_u16(max));
vst1_u16(dst_ptr, d0_u16);
src_ptr += src_stride;
ref_ptr += ref_stride;
dst_ptr += dst_stride;
} while (--h != 0);
} else {
do {
int width = w;
const uint16_t *src = src_ptr;
const uint16_t *ref = ref_ptr;
uint16_t *dst = dst_ptr;
do {
const uint16x8_t s = vld1q_u16(src);
const uint16x8_t r = vld1q_u16(ref);
uint16x8_t avg = vhaddq_u16(s, r);
int32x4_t d0_lo =
vreinterpretq_s32_u32(vsubl_u16(vget_low_u16(avg), offset_vec));
int32x4_t d0_hi =
vreinterpretq_s32_u32(vsubl_u16(vget_high_u16(avg), offset_vec));
uint16x8_t d0 = vcombine_u16(vqrshrun_n_s32(d0_lo, ROUND_SHIFT),
vqrshrun_n_s32(d0_hi, ROUND_SHIFT));
d0 = vminq_u16(d0, max);
vst1q_u16(dst, d0);
src += 8;
ref += 8;
dst += 8;
width -= 8;
} while (width != 0);
src_ptr += src_stride;
ref_ptr += ref_stride;
dst_ptr += dst_stride;
} while (--h != 0);
}
}
static inline void highbd_12_dist_wtd_comp_avg_neon(
const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride,
int w, int h, ConvolveParams *conv_params) {
const int offset_bits = 12 + 2 * FILTER_BITS - ROUND0_BITS - 2;
const int offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
(1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
CONV_BUF_TYPE *ref_ptr = conv_params->dst;
const int ref_stride = conv_params->dst_stride;
const uint32x4_t offset_vec = vdupq_n_u32(offset);
const uint16x8_t max = vdupq_n_u16((1 << 12) - 1);
uint16x4_t fwd_offset = vdup_n_u16(conv_params->fwd_offset);
uint16x4_t bck_offset = vdup_n_u16(conv_params->bck_offset);
// Weighted averaging
if (w == 4) {
do {
const uint16x4_t src = vld1_u16(src_ptr);
const uint16x4_t ref = vld1_u16(ref_ptr);
uint32x4_t wtd_avg = vmull_u16(ref, fwd_offset);
wtd_avg = vmlal_u16(wtd_avg, src, bck_offset);
wtd_avg = vshrq_n_u32(wtd_avg, DIST_PRECISION_BITS);
int32x4_t d0 = vreinterpretq_s32_u32(vsubq_u32(wtd_avg, offset_vec));
uint16x4_t d0_u16 = vqrshrun_n_s32(d0, ROUND_SHIFT - 2);
d0_u16 = vmin_u16(d0_u16, vget_low_u16(max));
vst1_u16(dst_ptr, d0_u16);
src_ptr += src_stride;
dst_ptr += dst_stride;
ref_ptr += ref_stride;
} while (--h != 0);
} else {
do {
int width = w;
const uint16_t *src = src_ptr;
const uint16_t *ref = ref_ptr;
uint16_t *dst = dst_ptr;
do {
const uint16x8_t s = vld1q_u16(src);
const uint16x8_t r = vld1q_u16(ref);
uint32x4_t wtd_avg0 = vmull_u16(vget_low_u16(r), fwd_offset);
wtd_avg0 = vmlal_u16(wtd_avg0, vget_low_u16(s), bck_offset);
wtd_avg0 = vshrq_n_u32(wtd_avg0, DIST_PRECISION_BITS);
int32x4_t d0 = vreinterpretq_s32_u32(vsubq_u32(wtd_avg0, offset_vec));
uint32x4_t wtd_avg1 = vmull_u16(vget_high_u16(r), fwd_offset);
wtd_avg1 = vmlal_u16(wtd_avg1, vget_high_u16(s), bck_offset);
wtd_avg1 = vshrq_n_u32(wtd_avg1, DIST_PRECISION_BITS);
int32x4_t d1 = vreinterpretq_s32_u32(vsubq_u32(wtd_avg1, offset_vec));
uint16x8_t d01 = vcombine_u16(vqrshrun_n_s32(d0, ROUND_SHIFT - 2),
vqrshrun_n_s32(d1, ROUND_SHIFT - 2));
d01 = vminq_u16(d01, max);
vst1q_u16(dst, d01);
src += 8;
ref += 8;
dst += 8;
width -= 8;
} while (width != 0);
src_ptr += src_stride;
dst_ptr += dst_stride;
ref_ptr += ref_stride;
} while (--h != 0);
}
}
static inline void highbd_dist_wtd_comp_avg_neon(
const uint16_t *src_ptr, int src_stride, uint16_t *dst_ptr, int dst_stride,
int w, int h, ConvolveParams *conv_params, const int bd) {
const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
const int offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
(1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
CONV_BUF_TYPE *ref_ptr = conv_params->dst;
const int ref_stride = conv_params->dst_stride;
const uint32x4_t offset_vec = vdupq_n_u32(offset);
const uint16x8_t max = vdupq_n_u16((1 << bd) - 1);
uint16x4_t fwd_offset = vdup_n_u16(conv_params->fwd_offset);
uint16x4_t bck_offset = vdup_n_u16(conv_params->bck_offset);
// Weighted averaging
if (w == 4) {
do {
const uint16x4_t src = vld1_u16(src_ptr);
const uint16x4_t ref = vld1_u16(ref_ptr);
uint32x4_t wtd_avg = vmull_u16(ref, fwd_offset);
wtd_avg = vmlal_u16(wtd_avg, src, bck_offset);
wtd_avg = vshrq_n_u32(wtd_avg, DIST_PRECISION_BITS);
int32x4_t d0 = vreinterpretq_s32_u32(vsubq_u32(wtd_avg, offset_vec));
uint16x4_t d0_u16 = vqrshrun_n_s32(d0, ROUND_SHIFT);
d0_u16 = vmin_u16(d0_u16, vget_low_u16(max));
vst1_u16(dst_ptr, d0_u16);
src_ptr += src_stride;
dst_ptr += dst_stride;
ref_ptr += ref_stride;
} while (--h != 0);
} else {
do {
int width = w;
const uint16_t *src = src_ptr;
const uint16_t *ref = ref_ptr;
uint16_t *dst = dst_ptr;
do {
const uint16x8_t s = vld1q_u16(src);
const uint16x8_t r = vld1q_u16(ref);
uint32x4_t wtd_avg0 = vmull_u16(vget_low_u16(r), fwd_offset);
wtd_avg0 = vmlal_u16(wtd_avg0, vget_low_u16(s), bck_offset);
wtd_avg0 = vshrq_n_u32(wtd_avg0, DIST_PRECISION_BITS);
int32x4_t d0 = vreinterpretq_s32_u32(vsubq_u32(wtd_avg0, offset_vec));
uint32x4_t wtd_avg1 = vmull_u16(vget_high_u16(r), fwd_offset);
wtd_avg1 = vmlal_u16(wtd_avg1, vget_high_u16(s), bck_offset);
wtd_avg1 = vshrq_n_u32(wtd_avg1, DIST_PRECISION_BITS);
int32x4_t d1 = vreinterpretq_s32_u32(vsubq_u32(wtd_avg1, offset_vec));
uint16x8_t d01 = vcombine_u16(vqrshrun_n_s32(d0, ROUND_SHIFT),
vqrshrun_n_s32(d1, ROUND_SHIFT));
d01 = vminq_u16(d01, max);
vst1q_u16(dst, d01);
src += 8;
ref += 8;
dst += 8;
width -= 8;
} while (width != 0);
src_ptr += src_stride;
dst_ptr += dst_stride;
ref_ptr += ref_stride;
} while (--h != 0);
}
}