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-rw-r--r--third_party/aom/av1/common/arm/compound_convolve_neon.c2719
1 files changed, 2719 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/compound_convolve_neon.c b/third_party/aom/av1/common/arm/compound_convolve_neon.c
new file mode 100644
index 0000000000..6a596234dc
--- /dev/null
+++ b/third_party/aom/av1/common/arm/compound_convolve_neon.c
@@ -0,0 +1,2719 @@
+/*
+ * 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_dsp/arm/mem_neon.h"
+#include "aom_dsp/arm/transpose_neon.h"
+#include "av1/common/arm/compound_convolve_neon.h"
+#include "config/aom_config.h"
+#include "config/av1_rtcd.h"
+
+static INLINE int16x4_t convolve4_4_2d_h(const int16x4_t s0, const int16x4_t s1,
+ const int16x4_t s2, const int16x4_t s3,
+ const int16x4_t x_filter,
+ const int16x4_t horiz_const) {
+ int16x4_t sum = horiz_const;
+ sum = vmla_lane_s16(sum, s0, x_filter, 0);
+ sum = vmla_lane_s16(sum, s1, x_filter, 1);
+ sum = vmla_lane_s16(sum, s2, x_filter, 2);
+ sum = vmla_lane_s16(sum, s3, x_filter, 3);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ return vshr_n_s16(sum, ROUND0_BITS - 1);
+}
+
+static INLINE int16x8_t convolve8_8_2d_h(const int16x8_t s0, const int16x8_t s1,
+ const int16x8_t s2, const int16x8_t s3,
+ const int16x8_t s4, const int16x8_t s5,
+ const int16x8_t s6, const int16x8_t s7,
+ const int16x8_t x_filter,
+ const int16x8_t horiz_const) {
+ const int16x4_t x_filter_0_3 = vget_low_s16(x_filter);
+ const int16x4_t x_filter_4_7 = vget_high_s16(x_filter);
+
+ int16x8_t sum = horiz_const;
+ sum = vmlaq_lane_s16(sum, s0, x_filter_0_3, 0);
+ sum = vmlaq_lane_s16(sum, s1, x_filter_0_3, 1);
+ sum = vmlaq_lane_s16(sum, s2, x_filter_0_3, 2);
+ sum = vmlaq_lane_s16(sum, s3, x_filter_0_3, 3);
+ sum = vmlaq_lane_s16(sum, s4, x_filter_4_7, 0);
+ sum = vmlaq_lane_s16(sum, s5, x_filter_4_7, 1);
+ sum = vmlaq_lane_s16(sum, s6, x_filter_4_7, 2);
+ sum = vmlaq_lane_s16(sum, s7, x_filter_4_7, 3);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ return vshrq_n_s16(sum, ROUND0_BITS - 1);
+}
+
+static INLINE void dist_wtd_convolve_2d_horiz_neon(
+ const uint8_t *src, int src_stride, int16_t *im_block, const int im_stride,
+ const int16_t *x_filter_ptr, const int im_h, int w) {
+ const int bd = 8;
+
+ const uint8_t *src_ptr = src;
+ int16_t *dst_ptr = im_block;
+ int dst_stride = im_stride;
+ int height = im_h;
+
+ if (w == 4) {
+ // A shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use non-rounding
+ // shifts - which are generally faster than rounding shifts on modern CPUs.
+ // (The extra -1 is needed because we halved the filter values.)
+ const int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2)) +
+ (1 << ((ROUND0_BITS - 1) - 1)));
+ // 4-tap filters are used for blocks having width <= 4.
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x4_t x_filter = vshr_n_s16(vld1_s16(x_filter_ptr + 2), 1);
+
+ src_ptr += 2;
+
+ do {
+ uint8x8_t t0 = vld1_u8(src_ptr); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+ __builtin_prefetch(dst_ptr);
+
+ int16x4_t s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4
+ int16x4_t s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5
+ int16x4_t s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6
+
+ int16x4_t d0 = convolve4_4_2d_h(s0, s1, s2, s3, x_filter, horiz_const);
+
+ vst1_s16(dst_ptr, d0);
+
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ } while (--height != 0);
+ } else {
+ // A shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use non-rounding
+ // shifts - which are generally faster than rounding shifts on modern CPUs.
+ // (The extra -1 is needed because we halved the filter values.)
+ const int16x8_t horiz_const = vdupq_n_s16((1 << (bd + FILTER_BITS - 2)) +
+ (1 << ((ROUND0_BITS - 1) - 1)));
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x8_t x_filter = vshrq_n_s16(vld1q_s16(x_filter_ptr), 1);
+
+#if AOM_ARCH_AARCH64
+ do {
+ const uint8_t *s;
+ int16_t *d = dst_ptr;
+ int width = w;
+
+ __builtin_prefetch(src_ptr + 0 * src_stride);
+ __builtin_prefetch(src_ptr + 1 * src_stride);
+ __builtin_prefetch(src_ptr + 2 * src_stride);
+ __builtin_prefetch(src_ptr + 3 * src_stride);
+ __builtin_prefetch(src_ptr + 4 * src_stride);
+ __builtin_prefetch(src_ptr + 5 * src_stride);
+ __builtin_prefetch(src_ptr + 6 * src_stride);
+ __builtin_prefetch(src_ptr + 7 * src_stride);
+
+ uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7;
+ load_u8_8x8(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ s = src_ptr + 7;
+
+ __builtin_prefetch(dst_ptr + 0 * dst_stride);
+ __builtin_prefetch(dst_ptr + 1 * dst_stride);
+ __builtin_prefetch(dst_ptr + 2 * dst_stride);
+ __builtin_prefetch(dst_ptr + 3 * dst_stride);
+ __builtin_prefetch(dst_ptr + 4 * dst_stride);
+ __builtin_prefetch(dst_ptr + 5 * dst_stride);
+ __builtin_prefetch(dst_ptr + 6 * dst_stride);
+ __builtin_prefetch(dst_ptr + 7 * dst_stride);
+
+ do {
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ int16x8_t d0 = convolve8_8_2d_h(s0, s1, s2, s3, s4, s5, s6, s7,
+ x_filter, horiz_const);
+ int16x8_t d1 = convolve8_8_2d_h(s1, s2, s3, s4, s5, s6, s7, s8,
+ x_filter, horiz_const);
+ int16x8_t d2 = convolve8_8_2d_h(s2, s3, s4, s5, s6, s7, s8, s9,
+ x_filter, horiz_const);
+ int16x8_t d3 = convolve8_8_2d_h(s3, s4, s5, s6, s7, s8, s9, s10,
+ x_filter, horiz_const);
+ int16x8_t d4 = convolve8_8_2d_h(s4, s5, s6, s7, s8, s9, s10, s11,
+ x_filter, horiz_const);
+ int16x8_t d5 = convolve8_8_2d_h(s5, s6, s7, s8, s9, s10, s11, s12,
+ x_filter, horiz_const);
+ int16x8_t d6 = convolve8_8_2d_h(s6, s7, s8, s9, s10, s11, s12, s13,
+ x_filter, horiz_const);
+ int16x8_t d7 = convolve8_8_2d_h(s7, s8, s9, s10, s11, s12, s13, s14,
+ x_filter, horiz_const);
+
+ transpose_elems_inplace_s16_8x8(&d0, &d1, &d2, &d3, &d4, &d5, &d6, &d7);
+ store_s16_8x8(d, dst_stride, d0, d1, d2, d3, d4, d5, d6, d7);
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8;
+ d += 8;
+ width -= 8;
+ } while (width > 0);
+ src_ptr += 8 * src_stride;
+ dst_ptr += 8 * dst_stride;
+ height -= 8;
+ } while (height > 8);
+#endif // AOM_ARCH_AARCH64
+
+ do {
+ const uint8_t *s;
+ int16_t *d = dst_ptr;
+ int width = w;
+
+ uint8x8_t t0 = vld1_u8(src_ptr);
+ int16x8_t s0 =
+ vreinterpretq_s16_u16(vmovl_u8(t0)); // a0 a1 a2 a3 a4 a5 a6 a7
+
+ s = src_ptr + 8;
+ __builtin_prefetch(dst_ptr);
+
+ do {
+ t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ int16x8_t s1 = vextq_s16(s0, s8, 1); // a1 a2 a3 a4 a5 a6 a7 a8
+ int16x8_t s2 = vextq_s16(s0, s8, 2); // a2 a3 a4 a5 a6 a7 a8 a9
+ int16x8_t s3 = vextq_s16(s0, s8, 3); // a3 a4 a5 a6 a7 a8 a9 a10
+ int16x8_t s4 = vextq_s16(s0, s8, 4); // a4 a5 a6 a7 a8 a9 a10 a11
+ int16x8_t s5 = vextq_s16(s0, s8, 5); // a5 a6 a7 a8 a9 a10 a11 a12
+ int16x8_t s6 = vextq_s16(s0, s8, 6); // a6 a7 a8 a9 a10 a11 a12 a13
+ int16x8_t s7 = vextq_s16(s0, s8, 7); // a7 a8 a9 a10 a11 a12 a13 a14
+
+ int16x8_t d0 = convolve8_8_2d_h(s0, s1, s2, s3, s4, s5, s6, s7,
+ x_filter, horiz_const);
+ vst1q_s16(d, d0);
+
+ s0 = s8;
+ s += 8;
+ d += 8;
+ width -= 8;
+ } while (width > 0);
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ } while (--height != 0);
+ }
+}
+
+void av1_dist_wtd_convolve_2d_neon(const uint8_t *src, int src_stride,
+ uint8_t *dst8, int dst8_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_x_qn, const int subpel_y_qn,
+ ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ DECLARE_ALIGNED(16, int16_t,
+ im_block[(MAX_SB_SIZE + SUBPEL_TAPS - 1) * MAX_SB_SIZE]);
+
+ const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn);
+ const int clamped_y_taps = y_filter_taps < 6 ? 6 : y_filter_taps;
+
+ const int im_h = h + clamped_y_taps - 1;
+ const int im_stride = MAX_SB_SIZE;
+ const int vert_offset = clamped_y_taps / 2 - 1;
+ const int horiz_offset = filter_params_x->taps / 2 - 1;
+ const uint8_t *src_ptr = src - vert_offset * src_stride - horiz_offset;
+ const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_x, subpel_x_qn & SUBPEL_MASK);
+ const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_y, subpel_y_qn & SUBPEL_MASK);
+
+ const int16x8_t y_filter = vld1q_s16(y_filter_ptr);
+
+ dist_wtd_convolve_2d_horiz_neon(src_ptr, src_stride, im_block, im_stride,
+ x_filter_ptr, im_h, w);
+
+ if (clamped_y_taps == 6) {
+ if (conv_params->do_average) {
+ if (UNLIKELY(conv_params->use_dist_wtd_comp_avg)) {
+ dist_wtd_convolve_2d_vert_6tap_dist_wtd_avg_neon(
+ im_block, im_stride, dst8, dst8_stride, conv_params, y_filter, h,
+ w);
+ } else {
+ dist_wtd_convolve_2d_vert_6tap_avg_neon(im_block, im_stride, dst8,
+ dst8_stride, conv_params,
+ y_filter, h, w);
+ }
+ } else {
+ dist_wtd_convolve_2d_vert_6tap_neon(im_block, im_stride, conv_params,
+ y_filter, h, w);
+ }
+ } else {
+ if (conv_params->do_average) {
+ if (UNLIKELY(conv_params->use_dist_wtd_comp_avg)) {
+ dist_wtd_convolve_2d_vert_8tap_dist_wtd_avg_neon(
+ im_block, im_stride, dst8, dst8_stride, conv_params, y_filter, h,
+ w);
+ } else {
+ dist_wtd_convolve_2d_vert_8tap_avg_neon(im_block, im_stride, dst8,
+ dst8_stride, conv_params,
+ y_filter, h, w);
+ }
+ } else {
+ dist_wtd_convolve_2d_vert_8tap_neon(im_block, im_stride, conv_params,
+ y_filter, h, w);
+ }
+ }
+}
+
+static INLINE void dist_wtd_convolve_2d_copy_dist_wtd_avg_neon(
+ const uint8_t *src, int src_stride, uint8_t *dst8, int dst8_stride, int w,
+ int h, ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const uint16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const uint16x8_t round_offset_vec = vdupq_n_u16(round_offset);
+ const uint8x8_t shift_by_bits = vdup_n_u8(1 << (FILTER_BITS - ROUND0_BITS));
+
+ const uint16_t fwd_offset = conv_params->fwd_offset;
+ const uint16_t bck_offset = conv_params->bck_offset;
+
+ CONV_BUF_TYPE *dst = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int height = h;
+
+ if (w == 4) {
+ do {
+ uint8x8_t s0, s1, s2, s3;
+ load_u8_8x4(src, src_stride, &s0, &s1, &s2, &s3);
+
+ uint16x4_t d0 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s0, shift_by_bits));
+ uint16x4_t d1 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s1, shift_by_bits));
+ uint16x4_t d2 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s2, shift_by_bits));
+ uint16x4_t d3 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s3, shift_by_bits));
+
+ uint16x4_t dd0, dd1, dd2, dd3;
+ load_u16_4x4(dst, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d01, d23;
+ compute_dist_wtd_avg_4x4(
+ dd0, dd1, dd2, dd3, d0, d1, d2, d3, fwd_offset, bck_offset,
+ vreinterpretq_s16_u16(round_offset_vec), &d01, &d23);
+
+ store_u8x4_strided_x2(dst8 + 0 * dst8_stride, dst8_stride, d01);
+ store_u8x4_strided_x2(dst8 + 2 * dst8_stride, dst8_stride, d23);
+
+ src += 4 * src_stride;
+ dst += 4 * dst_stride;
+ dst8 += 4 * dst8_stride;
+ height -= 4;
+ } while (height != 0);
+ } else {
+ do {
+ const uint8_t *s = src;
+ CONV_BUF_TYPE *d = dst;
+ uint8_t *d_u8 = dst8;
+ int width = w;
+
+ do {
+ uint8x8_t s0, s1, s2, s3;
+ load_u8_8x4(s, src_stride, &s0, &s1, &s2, &s3);
+
+ uint16x8_t d0 = vmlal_u8(round_offset_vec, s0, shift_by_bits);
+ uint16x8_t d1 = vmlal_u8(round_offset_vec, s1, shift_by_bits);
+ uint16x8_t d2 = vmlal_u8(round_offset_vec, s2, shift_by_bits);
+ uint16x8_t d3 = vmlal_u8(round_offset_vec, s3, shift_by_bits);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_dist_wtd_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3, fwd_offset,
+ bck_offset,
+ vreinterpretq_s16_u16(round_offset_vec),
+ &d0_u8, &d1_u8, &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+
+ s += 8;
+ d += 8;
+ d_u8 += 8;
+ width -= 8;
+ } while (width != 0);
+ src += 4 * src_stride;
+ dst += 4 * dst_stride;
+ dst8 += 4 * dst8_stride;
+ height -= 4;
+ } while (height != 0);
+ }
+}
+
+static INLINE void dist_wtd_convolve_2d_copy_avg_neon(
+ const uint8_t *src, int src_stride, uint8_t *dst8, int dst8_stride, int w,
+ int h, ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const uint16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const uint16x8_t round_offset_vec = vdupq_n_u16(round_offset);
+ const uint8x8_t shift_by_bits = vdup_n_u8(1 << (FILTER_BITS - ROUND0_BITS));
+
+ CONV_BUF_TYPE *dst = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int height = h;
+
+ if (w == 4) {
+ do {
+ uint8x8_t s0, s1, s2, s3;
+ load_u8_8x4(src, src_stride, &s0, &s1, &s2, &s3);
+
+ uint16x4_t d0 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s0, shift_by_bits));
+ uint16x4_t d1 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s1, shift_by_bits));
+ uint16x4_t d2 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s2, shift_by_bits));
+ uint16x4_t d3 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s3, shift_by_bits));
+
+ uint16x4_t dd0, dd1, dd2, dd3;
+ load_u16_4x4(dst, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d01, d23;
+ compute_basic_avg_4x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3,
+ vreinterpretq_s16_u16(round_offset_vec), &d01,
+ &d23);
+
+ store_u8x4_strided_x2(dst8 + 0 * dst8_stride, dst8_stride, d01);
+ store_u8x4_strided_x2(dst8 + 2 * dst8_stride, dst8_stride, d23);
+
+ src += 4 * src_stride;
+ dst += 4 * dst_stride;
+ dst8 += 4 * dst8_stride;
+ height -= 4;
+ } while (height != 0);
+ } else {
+ do {
+ const uint8_t *s = src;
+ CONV_BUF_TYPE *d = dst;
+ uint8_t *d_u8 = dst8;
+ int width = w;
+
+ do {
+ uint8x8_t s0, s1, s2, s3;
+ load_u8_8x4(s, src_stride, &s0, &s1, &s2, &s3);
+
+ uint16x8_t d0 = vmlal_u8(round_offset_vec, s0, shift_by_bits);
+ uint16x8_t d1 = vmlal_u8(round_offset_vec, s1, shift_by_bits);
+ uint16x8_t d2 = vmlal_u8(round_offset_vec, s2, shift_by_bits);
+ uint16x8_t d3 = vmlal_u8(round_offset_vec, s3, shift_by_bits);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_basic_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3,
+ vreinterpretq_s16_u16(round_offset_vec), &d0_u8,
+ &d1_u8, &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+
+ s += 8;
+ d += 8;
+ d_u8 += 8;
+ width -= 8;
+ } while (width != 0);
+ src += 4 * src_stride;
+ dst += 4 * dst_stride;
+ dst8 += 4 * dst8_stride;
+ height -= 4;
+ } while (height != 0);
+ }
+}
+
+static INLINE void dist_wtd_convolve_2d_copy_neon(const uint8_t *src,
+ int src_stride, int w, int h,
+ ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const uint16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const uint16x8_t round_offset_vec = vdupq_n_u16(round_offset);
+ const uint8x8_t shift_by_bits = vdup_n_u8(1 << (FILTER_BITS - ROUND0_BITS));
+
+ CONV_BUF_TYPE *dst = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int height = h;
+
+ if (w == 4) {
+ do {
+ uint8x8_t s0, s1, s2, s3;
+ load_u8_8x4(src, src_stride, &s0, &s1, &s2, &s3);
+
+ uint16x4_t d0 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s0, shift_by_bits));
+ uint16x4_t d1 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s1, shift_by_bits));
+ uint16x4_t d2 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s2, shift_by_bits));
+ uint16x4_t d3 =
+ vget_low_u16(vmlal_u8(round_offset_vec, s3, shift_by_bits));
+
+ store_u16_4x4(dst, dst_stride, d0, d1, d2, d3);
+
+ src += 4 * src_stride;
+ dst += 4 * dst_stride;
+ height -= 4;
+ } while (height != 0);
+ } else {
+ do {
+ const uint8_t *s = src;
+ CONV_BUF_TYPE *d = dst;
+ int width = w;
+
+ do {
+ uint8x8_t s0, s1, s2, s3;
+ load_u8_8x4(s, src_stride, &s0, &s1, &s2, &s3);
+
+ uint16x8_t d0 = vmlal_u8(round_offset_vec, s0, shift_by_bits);
+ uint16x8_t d1 = vmlal_u8(round_offset_vec, s1, shift_by_bits);
+ uint16x8_t d2 = vmlal_u8(round_offset_vec, s2, shift_by_bits);
+ uint16x8_t d3 = vmlal_u8(round_offset_vec, s3, shift_by_bits);
+
+ store_u16_8x4(d, dst_stride, d0, d1, d2, d3);
+
+ s += 8;
+ d += 8;
+ width -= 8;
+ } while (width != 0);
+ src += 4 * src_stride;
+ dst += 4 * dst_stride;
+ height -= 4;
+ } while (height != 0);
+ }
+}
+
+void av1_dist_wtd_convolve_2d_copy_neon(const uint8_t *src, int src_stride,
+ uint8_t *dst8, int dst8_stride, int w,
+ int h, ConvolveParams *conv_params) {
+ if (conv_params->do_average) {
+ if (UNLIKELY(conv_params->use_dist_wtd_comp_avg)) {
+ dist_wtd_convolve_2d_copy_dist_wtd_avg_neon(
+ src, src_stride, dst8, dst8_stride, w, h, conv_params);
+ } else {
+ dist_wtd_convolve_2d_copy_avg_neon(src, src_stride, dst8, dst8_stride, w,
+ h, conv_params);
+ }
+ } else {
+ dist_wtd_convolve_2d_copy_neon(src, src_stride, w, h, conv_params);
+ }
+}
+
+static INLINE uint16x4_t convolve4_4_x(const int16x4_t s0, const int16x4_t s1,
+ const int16x4_t s2, const int16x4_t s3,
+ const int16x4_t x_filter,
+ const int16x4_t round_offset) {
+ int16x4_t sum = vmul_lane_s16(s0, x_filter, 0);
+ sum = vmla_lane_s16(sum, s1, x_filter, 1);
+ sum = vmla_lane_s16(sum, s2, x_filter, 2);
+ sum = vmla_lane_s16(sum, s3, x_filter, 3);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ int16x4_t res = vrsra_n_s16(round_offset, sum, ROUND0_BITS - 1);
+ return vreinterpret_u16_s16(res);
+}
+
+static INLINE uint16x8_t convolve8_8_x(const int16x8_t s0, const int16x8_t s1,
+ const int16x8_t s2, const int16x8_t s3,
+ const int16x8_t s4, const int16x8_t s5,
+ const int16x8_t s6, const int16x8_t s7,
+ const int16x8_t x_filter,
+ const int16x8_t round_offset) {
+ const int16x4_t x_filter_0_3 = vget_low_s16(x_filter);
+ const int16x4_t x_filter_4_7 = vget_high_s16(x_filter);
+
+ int16x8_t sum = vmulq_lane_s16(s0, x_filter_0_3, 0);
+ sum = vmlaq_lane_s16(sum, s1, x_filter_0_3, 1);
+ sum = vmlaq_lane_s16(sum, s2, x_filter_0_3, 2);
+ sum = vmlaq_lane_s16(sum, s3, x_filter_0_3, 3);
+ sum = vmlaq_lane_s16(sum, s4, x_filter_4_7, 0);
+ sum = vmlaq_lane_s16(sum, s5, x_filter_4_7, 1);
+ sum = vmlaq_lane_s16(sum, s6, x_filter_4_7, 2);
+ sum = vmlaq_lane_s16(sum, s7, x_filter_4_7, 3);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ int16x8_t res = vrsraq_n_s16(round_offset, sum, ROUND0_BITS - 1);
+ return vreinterpretq_u16_s16(res);
+}
+
+static INLINE void dist_wtd_convolve_x_dist_wtd_avg_neon(
+ const uint8_t *src, int src_stride, uint8_t *dst8, int dst8_stride, int w,
+ int h, const InterpFilterParams *filter_params_x, const int subpel_x_qn,
+ ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ const uint16_t fwd_offset = conv_params->fwd_offset;
+ const uint16_t bck_offset = conv_params->bck_offset;
+
+ // Horizontal filter.
+ const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_x, subpel_x_qn & SUBPEL_MASK);
+
+ const int horiz_offset = filter_params_x->taps / 2 - 1;
+ const uint8_t *src_ptr = src - horiz_offset;
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ uint8_t *dst8_ptr = dst8;
+ int dst_stride = conv_params->dst_stride;
+ int height = h;
+
+ if (w == 4) {
+ // 4-tap filters are used for blocks having width <= 4.
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x4_t x_filter = vshr_n_s16(vld1_s16(x_filter_ptr + 2), 1);
+
+ src_ptr += 2;
+
+ do {
+ uint8x8_t t0 = vld1_u8(src_ptr); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+ __builtin_prefetch(dst_ptr);
+ __builtin_prefetch(dst8_ptr);
+
+ int16x4_t s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4
+ int16x4_t s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5
+ int16x4_t s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6
+
+ uint16x4_t d0 = convolve4_4_x(s0, s1, s2, s3, x_filter,
+ vget_low_s16(round_offset_vec));
+
+ uint16x4_t dd0 = vld1_u16(dst_ptr);
+
+ uint8x8_t d01;
+ compute_dist_wtd_avg_4x1(dd0, d0, fwd_offset, bck_offset,
+ vget_low_s16(round_offset_vec), &d01);
+
+ store_u8_4x1(dst8_ptr, d01);
+
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ dst8_ptr += dst8_stride;
+ } while (--height != 0);
+ } else {
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x8_t x_filter = vshrq_n_s16(vld1q_s16(x_filter_ptr), 1);
+
+#if AOM_ARCH_AARCH64
+ while (height >= 8) {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int width = w;
+
+ uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+ __builtin_prefetch(d + 4 * dst_stride);
+ __builtin_prefetch(d + 5 * dst_stride);
+ __builtin_prefetch(d + 6 * dst_stride);
+ __builtin_prefetch(d + 7 * dst_stride);
+
+ s += 7;
+
+ do {
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ uint16x8_t d0 = convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ round_offset_vec);
+ uint16x8_t d1 = convolve8_8_x(s1, s2, s3, s4, s5, s6, s7, s8, x_filter,
+ round_offset_vec);
+ uint16x8_t d2 = convolve8_8_x(s2, s3, s4, s5, s6, s7, s8, s9, x_filter,
+ round_offset_vec);
+ uint16x8_t d3 = convolve8_8_x(s3, s4, s5, s6, s7, s8, s9, s10, x_filter,
+ round_offset_vec);
+ uint16x8_t d4 = convolve8_8_x(s4, s5, s6, s7, s8, s9, s10, s11,
+ x_filter, round_offset_vec);
+ uint16x8_t d5 = convolve8_8_x(s5, s6, s7, s8, s9, s10, s11, s12,
+ x_filter, round_offset_vec);
+ uint16x8_t d6 = convolve8_8_x(s6, s7, s8, s9, s10, s11, s12, s13,
+ x_filter, round_offset_vec);
+ uint16x8_t d7 = convolve8_8_x(s7, s8, s9, s10, s11, s12, s13, s14,
+ x_filter, round_offset_vec);
+
+ transpose_elems_inplace_u16_8x8(&d0, &d1, &d2, &d3, &d4, &d5, &d6, &d7);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_dist_wtd_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3, fwd_offset,
+ bck_offset, round_offset_vec, &d0_u8, &d1_u8,
+ &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+
+ uint16x8_t dd4, dd5, dd6, dd7;
+ load_u16_8x4(d + 4 * dst_stride, dst_stride, &dd4, &dd5, &dd6, &dd7);
+
+ uint8x8_t d4_u8, d5_u8, d6_u8, d7_u8;
+ compute_dist_wtd_avg_8x4(dd4, dd5, dd6, dd7, d4, d5, d6, d7, fwd_offset,
+ bck_offset, round_offset_vec, &d4_u8, &d5_u8,
+ &d6_u8, &d7_u8);
+
+ store_u8_8x4(d_u8 + 4 * dst8_stride, dst8_stride, d4_u8, d5_u8, d6_u8,
+ d7_u8);
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8;
+ d += 8;
+ d_u8 += 8;
+ width -= 8;
+ } while (width != 0);
+ src_ptr += 8 * src_stride;
+ dst_ptr += 8 * dst_stride;
+ dst8_ptr += 8 * dst8_stride;
+ height -= 8;
+ }
+#endif // AOM_ARCH_AARCH64
+
+ while (height > 0) {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int width = w;
+
+ uint8x8_t t0 = vld1_u8(s); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ __builtin_prefetch(d);
+
+ s += 8;
+
+ do {
+ t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ int16x8_t s1 = vextq_s16(s0, s8, 1); // a1 a2 a3 a4 a5 a6 a7 a8
+ int16x8_t s2 = vextq_s16(s0, s8, 2); // a2 a3 a4 a5 a6 a7 a8 a9
+ int16x8_t s3 = vextq_s16(s0, s8, 3); // a3 a4 a5 a6 a7 a8 a9 a10
+ int16x8_t s4 = vextq_s16(s0, s8, 4); // a4 a5 a6 a7 a8 a9 a10 a11
+ int16x8_t s5 = vextq_s16(s0, s8, 5); // a5 a6 a7 a8 a9 a10 a11 a12
+ int16x8_t s6 = vextq_s16(s0, s8, 6); // a6 a7 a8 a9 a10 a11 a12 a13
+ int16x8_t s7 = vextq_s16(s0, s8, 7); // a7 a8 a9 a10 a11 a12 a13 a14
+
+ uint16x8_t d0 = convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ round_offset_vec);
+
+ uint16x8_t dd0 = vld1q_u16(d);
+
+ uint8x8_t d0_u8;
+ compute_dist_wtd_avg_8x1(dd0, d0, fwd_offset, bck_offset,
+ round_offset_vec, &d0_u8);
+
+ vst1_u8(d_u8, d0_u8);
+
+ s0 = s8;
+ s += 8;
+ d += 8;
+ d_u8 += 8;
+ width -= 8;
+ } while (width != 0);
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ dst8_ptr += dst8_stride;
+ height--;
+ }
+ }
+}
+
+static INLINE void dist_wtd_convolve_x_avg_neon(
+ const uint8_t *src, int src_stride, uint8_t *dst8, int dst8_stride, int w,
+ int h, const InterpFilterParams *filter_params_x, const int subpel_x_qn,
+ ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ // Horizontal filter.
+ const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_x, subpel_x_qn & SUBPEL_MASK);
+
+ const int horiz_offset = filter_params_x->taps / 2 - 1;
+ const uint8_t *src_ptr = src - horiz_offset;
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ uint8_t *dst8_ptr = dst8;
+ int dst_stride = conv_params->dst_stride;
+ int height = h;
+
+ if (w == 4) {
+ // 4-tap filters are used for blocks having width <= 4.
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x4_t x_filter = vshr_n_s16(vld1_s16(x_filter_ptr + 2), 1);
+
+ src_ptr += 2;
+
+ do {
+ uint8x8_t t0 = vld1_u8(src_ptr); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+ __builtin_prefetch(dst_ptr);
+ __builtin_prefetch(dst8_ptr);
+
+ int16x4_t s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4
+ int16x4_t s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5
+ int16x4_t s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6
+
+ uint16x4_t d0 = convolve4_4_x(s0, s1, s2, s3, x_filter,
+ vget_low_s16(round_offset_vec));
+
+ uint16x4_t dd0 = vld1_u16(dst_ptr);
+
+ uint8x8_t d01;
+ compute_basic_avg_4x1(dd0, d0, vget_low_s16(round_offset_vec), &d01);
+
+ store_u8_4x1(dst8_ptr, d01);
+
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ dst8_ptr += dst8_stride;
+ } while (--height != 0);
+ } else {
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x8_t x_filter = vshrq_n_s16(vld1q_s16(x_filter_ptr), 1);
+
+#if AOM_ARCH_AARCH64
+ while (height >= 8) {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int width = w;
+
+ uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+ __builtin_prefetch(d + 4 * dst_stride);
+ __builtin_prefetch(d + 5 * dst_stride);
+ __builtin_prefetch(d + 6 * dst_stride);
+ __builtin_prefetch(d + 7 * dst_stride);
+
+ s += 7;
+
+ do {
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ uint16x8_t d0 = convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ round_offset_vec);
+ uint16x8_t d1 = convolve8_8_x(s1, s2, s3, s4, s5, s6, s7, s8, x_filter,
+ round_offset_vec);
+ uint16x8_t d2 = convolve8_8_x(s2, s3, s4, s5, s6, s7, s8, s9, x_filter,
+ round_offset_vec);
+ uint16x8_t d3 = convolve8_8_x(s3, s4, s5, s6, s7, s8, s9, s10, x_filter,
+ round_offset_vec);
+ uint16x8_t d4 = convolve8_8_x(s4, s5, s6, s7, s8, s9, s10, s11,
+ x_filter, round_offset_vec);
+ uint16x8_t d5 = convolve8_8_x(s5, s6, s7, s8, s9, s10, s11, s12,
+ x_filter, round_offset_vec);
+ uint16x8_t d6 = convolve8_8_x(s6, s7, s8, s9, s10, s11, s12, s13,
+ x_filter, round_offset_vec);
+ uint16x8_t d7 = convolve8_8_x(s7, s8, s9, s10, s11, s12, s13, s14,
+ x_filter, round_offset_vec);
+
+ transpose_elems_inplace_u16_8x8(&d0, &d1, &d2, &d3, &d4, &d5, &d6, &d7);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_basic_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3,
+ round_offset_vec, &d0_u8, &d1_u8, &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+
+ uint16x8_t dd4, dd5, dd6, dd7;
+ load_u16_8x4(d + 4 * dst_stride, dst_stride, &dd4, &dd5, &dd6, &dd7);
+
+ uint8x8_t d4_u8, d5_u8, d6_u8, d7_u8;
+ compute_basic_avg_8x4(dd4, dd5, dd6, dd7, d4, d5, d6, d7,
+ round_offset_vec, &d4_u8, &d5_u8, &d6_u8, &d7_u8);
+
+ store_u8_8x4(d_u8 + 4 * dst8_stride, dst8_stride, d4_u8, d5_u8, d6_u8,
+ d7_u8);
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8;
+ d += 8;
+ d_u8 += 8;
+ width -= 8;
+ } while (width != 0);
+ src_ptr += 8 * src_stride;
+ dst_ptr += 8 * dst_stride;
+ dst8_ptr += 8 * dst8_stride;
+ height -= 8;
+ }
+#endif // AOM_ARCH_AARCH64
+
+ while (height > 0) {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int width = w;
+
+ uint8x8_t t0 = vld1_u8(s); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ __builtin_prefetch(d);
+
+ s += 8;
+
+ do {
+ t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ int16x8_t s1 = vextq_s16(s0, s8, 1); // a1 a2 a3 a4 a5 a6 a7 a8
+ int16x8_t s2 = vextq_s16(s0, s8, 2); // a2 a3 a4 a5 a6 a7 a8 a9
+ int16x8_t s3 = vextq_s16(s0, s8, 3); // a3 a4 a5 a6 a7 a8 a9 a10
+ int16x8_t s4 = vextq_s16(s0, s8, 4); // a4 a5 a6 a7 a8 a9 a10 a11
+ int16x8_t s5 = vextq_s16(s0, s8, 5); // a5 a6 a7 a8 a9 a10 a11 a12
+ int16x8_t s6 = vextq_s16(s0, s8, 6); // a6 a7 a8 a9 a10 a11 a12 a13
+ int16x8_t s7 = vextq_s16(s0, s8, 7); // a7 a8 a9 a10 a11 a12 a13 a14
+
+ uint16x8_t d0 = convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ round_offset_vec);
+
+ uint16x8_t dd0 = vld1q_u16(d);
+
+ uint8x8_t d0_u8;
+ compute_basic_avg_8x1(dd0, d0, round_offset_vec, &d0_u8);
+
+ vst1_u8(d_u8, d0_u8);
+
+ s0 = s8;
+ s += 8;
+ d += 8;
+ d_u8 += 8;
+ width -= 8;
+ } while (width != 0);
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ dst8_ptr += dst8_stride;
+ height--;
+ }
+ }
+}
+
+static INLINE void dist_wtd_convolve_x_neon(
+ const uint8_t *src, int src_stride, int w, int h,
+ const InterpFilterParams *filter_params_x, const int subpel_x_qn,
+ ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ // Horizontal filter.
+ const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_x, subpel_x_qn & SUBPEL_MASK);
+
+ const int horiz_offset = filter_params_x->taps / 2 - 1;
+ const uint8_t *src_ptr = src - horiz_offset;
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ int dst_stride = conv_params->dst_stride;
+ int height = h;
+
+ if (w == 4) {
+ // 4-tap filters are used for blocks having width <= 4.
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x4_t x_filter = vshr_n_s16(vld1_s16(x_filter_ptr + 2), 1);
+
+ src_ptr += 2;
+
+ do {
+ uint8x8_t t0 = vld1_u8(src_ptr); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x4_t s0 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+ int16x4_t s4 = vget_high_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+ __builtin_prefetch(dst_ptr);
+
+ int16x4_t s1 = vext_s16(s0, s4, 1); // a1 a2 a3 a4
+ int16x4_t s2 = vext_s16(s0, s4, 2); // a2 a3 a4 a5
+ int16x4_t s3 = vext_s16(s0, s4, 3); // a3 a4 a5 a6
+
+ uint16x4_t d0 = convolve4_4_x(s0, s1, s2, s3, x_filter,
+ vget_low_s16(round_offset_vec));
+
+ vst1_u16(dst_ptr, d0);
+
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ } while (--height != 0);
+ } else {
+ // Filter values are even, so halve to reduce intermediate precision reqs.
+ const int16x8_t x_filter = vshrq_n_s16(vld1q_s16(x_filter_ptr), 1);
+
+#if AOM_ARCH_AARCH64
+ while (height >= 8) {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ int width = w;
+
+ uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+ __builtin_prefetch(d + 4 * dst_stride);
+ __builtin_prefetch(d + 5 * dst_stride);
+ __builtin_prefetch(d + 6 * dst_stride);
+ __builtin_prefetch(d + 7 * dst_stride);
+
+ s += 7;
+
+ do {
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+ transpose_elems_inplace_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ uint16x8_t d0 = convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ round_offset_vec);
+ uint16x8_t d1 = convolve8_8_x(s1, s2, s3, s4, s5, s6, s7, s8, x_filter,
+ round_offset_vec);
+ uint16x8_t d2 = convolve8_8_x(s2, s3, s4, s5, s6, s7, s8, s9, x_filter,
+ round_offset_vec);
+ uint16x8_t d3 = convolve8_8_x(s3, s4, s5, s6, s7, s8, s9, s10, x_filter,
+ round_offset_vec);
+ uint16x8_t d4 = convolve8_8_x(s4, s5, s6, s7, s8, s9, s10, s11,
+ x_filter, round_offset_vec);
+ uint16x8_t d5 = convolve8_8_x(s5, s6, s7, s8, s9, s10, s11, s12,
+ x_filter, round_offset_vec);
+ uint16x8_t d6 = convolve8_8_x(s6, s7, s8, s9, s10, s11, s12, s13,
+ x_filter, round_offset_vec);
+ uint16x8_t d7 = convolve8_8_x(s7, s8, s9, s10, s11, s12, s13, s14,
+ x_filter, round_offset_vec);
+
+ transpose_elems_inplace_u16_8x8(&d0, &d1, &d2, &d3, &d4, &d5, &d6, &d7);
+
+ store_u16_8x8(d, dst_stride, d0, d1, d2, d3, d4, d5, d6, d7);
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8;
+ d += 8;
+ width -= 8;
+ } while (width != 0);
+ src_ptr += 8 * src_stride;
+ dst_ptr += 8 * dst_stride;
+ height -= 8;
+ }
+#endif // AOM_ARCH_AARCH64
+
+ while (height > 0) {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ int width = w;
+
+ uint8x8_t t0 = vld1_u8(s); // a0 a1 a2 a3 a4 a5 a6 a7
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ __builtin_prefetch(d);
+
+ s = src_ptr + 8;
+
+ do {
+ t0 = vld1_u8(s); // a8 a9 a10 a11 a12 a13 a14 a15
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+ int16x8_t s1 = vextq_s16(s0, s8, 1); // a1 a2 a3 a4 a5 a6 a7 a8
+ int16x8_t s2 = vextq_s16(s0, s8, 2); // a2 a3 a4 a5 a6 a7 a8 a9
+ int16x8_t s3 = vextq_s16(s0, s8, 3); // a3 a4 a5 a6 a7 a8 a9 a10
+ int16x8_t s4 = vextq_s16(s0, s8, 4); // a4 a5 a6 a7 a8 a9 a10 a11
+ int16x8_t s5 = vextq_s16(s0, s8, 5); // a5 a6 a7 a8 a9 a10 a11 a12
+ int16x8_t s6 = vextq_s16(s0, s8, 6); // a6 a7 a8 a9 a10 a11 a12 a13
+ int16x8_t s7 = vextq_s16(s0, s8, 7); // a7 a8 a9 a10 a11 a12 a13 a14
+
+ uint16x8_t d0 = convolve8_8_x(s0, s1, s2, s3, s4, s5, s6, s7, x_filter,
+ round_offset_vec);
+
+ vst1q_u16(d, d0);
+
+ s0 = s8;
+ s += 8;
+ d += 8;
+ width -= 8;
+ } while (width != 0);
+ src_ptr += src_stride;
+ dst_ptr += dst_stride;
+ height--;
+ }
+ }
+}
+
+void av1_dist_wtd_convolve_x_neon(const uint8_t *src, int src_stride,
+ uint8_t *dst8, int dst8_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const int subpel_x_qn,
+ ConvolveParams *conv_params) {
+ if (conv_params->do_average) {
+ if (UNLIKELY(conv_params->use_dist_wtd_comp_avg)) {
+ dist_wtd_convolve_x_dist_wtd_avg_neon(src, src_stride, dst8, dst8_stride,
+ w, h, filter_params_x, subpel_x_qn,
+ conv_params);
+ } else {
+ dist_wtd_convolve_x_avg_neon(src, src_stride, dst8, dst8_stride, w, h,
+ filter_params_x, subpel_x_qn, conv_params);
+ }
+ } else {
+ dist_wtd_convolve_x_neon(src, src_stride, w, h, filter_params_x,
+ subpel_x_qn, conv_params);
+ }
+}
+
+static INLINE uint16x4_t convolve6_4_y(const int16x4_t s0, const int16x4_t s1,
+ const int16x4_t s2, const int16x4_t s3,
+ const int16x4_t s4, const int16x4_t s5,
+ const int16x8_t y_filter,
+ const int16x4_t round_offset) {
+ const int16x4_t y_filter_0_3 = vget_low_s16(y_filter);
+ const int16x4_t y_filter_4_7 = vget_high_s16(y_filter);
+
+ // Filter values at indices 0 and 7 are 0.
+ int16x4_t sum = vmul_lane_s16(s0, y_filter_0_3, 1);
+ sum = vmla_lane_s16(sum, s1, y_filter_0_3, 2);
+ sum = vmla_lane_s16(sum, s2, y_filter_0_3, 3);
+ sum = vmla_lane_s16(sum, s3, y_filter_4_7, 0);
+ sum = vmla_lane_s16(sum, s4, y_filter_4_7, 1);
+ sum = vmla_lane_s16(sum, s5, y_filter_4_7, 2);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ int16x4_t res = vrsra_n_s16(round_offset, sum, ROUND0_BITS - 1);
+ return vreinterpret_u16_s16(res);
+}
+
+static INLINE uint16x8_t convolve6_8_y(const int16x8_t s0, const int16x8_t s1,
+ const int16x8_t s2, const int16x8_t s3,
+ const int16x8_t s4, const int16x8_t s5,
+ const int16x8_t y_filter,
+ const int16x8_t round_offset) {
+ const int16x4_t y_filter_0_3 = vget_low_s16(y_filter);
+ const int16x4_t y_filter_4_7 = vget_high_s16(y_filter);
+
+ // Filter values at indices 0 and 7 are 0.
+ int16x8_t sum = vmulq_lane_s16(s0, y_filter_0_3, 1);
+ sum = vmlaq_lane_s16(sum, s1, y_filter_0_3, 2);
+ sum = vmlaq_lane_s16(sum, s2, y_filter_0_3, 3);
+ sum = vmlaq_lane_s16(sum, s3, y_filter_4_7, 0);
+ sum = vmlaq_lane_s16(sum, s4, y_filter_4_7, 1);
+ sum = vmlaq_lane_s16(sum, s5, y_filter_4_7, 2);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ int16x8_t res = vrsraq_n_s16(round_offset, sum, ROUND0_BITS - 1);
+ return vreinterpretq_u16_s16(res);
+}
+
+static INLINE void dist_wtd_convolve_y_6tap_dist_wtd_avg_neon(
+ const uint8_t *src_ptr, int src_stride, uint8_t *dst8_ptr,
+ const int dst8_stride, int w, int h, const int16x8_t y_filter,
+ ConvolveParams *conv_params) {
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ const uint16_t fwd_offset = conv_params->fwd_offset;
+ const uint16_t bck_offset = conv_params->bck_offset;
+
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int width = w;
+
+ if (w == 4 || h == 4) {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ uint8x8_t t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ uint8x8_t t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ uint8x8_t t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ uint8x8_t t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+ uint8x8_t t4 = load_unaligned_u8_4x1(s + 4 * src_stride);
+
+ int16x4_t s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+ int16x4_t s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t4)));
+
+ s += 5 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+
+ uint16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d1 = convolve6_4_y(s1, s2, s3, s4, s5, s6, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d2 = convolve6_4_y(s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d3 = convolve6_4_y(s3, s4, s5, s6, s7, s8, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ uint16x4_t dd0, dd1, dd2, dd3;
+ load_u16_4x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d01, d23;
+ compute_dist_wtd_avg_4x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3, fwd_offset,
+ bck_offset, round_offset_vec, &d01, &d23);
+
+ store_u8x4_strided_x2(d_u8 + 0 * dst8_stride, dst8_stride, d01);
+ store_u8x4_strided_x2(d_u8 + 2 * dst8_stride, dst8_stride, d23);
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s += 4 * src_stride;
+ d += 4 * dst_stride;
+ d_u8 += 4 * dst8_stride;
+ height -= 4;
+#else // !AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s);
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+
+ uint16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ uint16x4_t dd0 = vld1_u16(d);
+
+ uint8x8_t d01;
+ compute_dist_wtd_avg_4x1(dd0, d0, fwd_offset, bck_offset,
+ vget_low_s16(round_offset_vec), &d01);
+
+ store_u8_4x1(d_u8, d01);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s += src_stride;
+ d += dst_stride;
+ d_u8 += dst8_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 4;
+ dst_ptr += 4;
+ dst8_ptr += 4;
+ width -= 4;
+ } while (width != 0);
+ } else {
+ do {
+ const uint8_t *s = src_ptr + (5 * src_stride);
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ uint8x8_t t0, t1, t2, t3, t4;
+ load_u8_8x5(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+
+ do {
+#if AOM_ARCH_AARCH64
+ uint8x8_t t5, t6, t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ uint16x8_t d0 =
+ convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter, round_offset_vec);
+ uint16x8_t d1 =
+ convolve6_8_y(s1, s2, s3, s4, s5, s6, y_filter, round_offset_vec);
+ uint16x8_t d2 =
+ convolve6_8_y(s2, s3, s4, s5, s6, s7, y_filter, round_offset_vec);
+ uint16x8_t d3 =
+ convolve6_8_y(s3, s4, s5, s6, s7, s8, y_filter, round_offset_vec);
+ uint16x8_t d4 =
+ convolve6_8_y(s4, s5, s6, s7, s8, s9, y_filter, round_offset_vec);
+ uint16x8_t d5 =
+ convolve6_8_y(s5, s6, s7, s8, s9, s10, y_filter, round_offset_vec);
+ uint16x8_t d6 =
+ convolve6_8_y(s6, s7, s8, s9, s10, s11, y_filter, round_offset_vec);
+ uint16x8_t d7 = convolve6_8_y(s7, s8, s9, s10, s11, s12, y_filter,
+ round_offset_vec);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_dist_wtd_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3, fwd_offset,
+ bck_offset, round_offset_vec, &d0_u8, &d1_u8,
+ &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+ d_u8 += 4 * dst8_stride;
+
+ uint16x8_t dd4, dd5, dd6, dd7;
+ load_u16_8x4(d + 4 * dst_stride, dst_stride, &dd4, &dd5, &dd6, &dd7);
+
+ uint8x8_t d4_u8, d5_u8, d6_u8, d7_u8;
+ compute_dist_wtd_avg_8x4(dd4, dd5, dd6, dd7, d4, d5, d6, d7, fwd_offset,
+ bck_offset, round_offset_vec, &d4_u8, &d5_u8,
+ &d6_u8, &d7_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d4_u8, d5_u8, d6_u8, d7_u8);
+ d_u8 += 4 * dst8_stride;
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s += 8 * src_stride;
+ d += 8 * dst_stride;
+ height -= 8;
+#else // !AOM_ARCH_AARCH64
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+
+ uint16x8_t d0 =
+ convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter, round_offset_vec);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+
+ uint16x8_t dd0 = vld1q_u16(d);
+
+ uint8x8_t d0_u8;
+ compute_dist_wtd_avg_8x1(dd0, d0, fwd_offset, bck_offset,
+ round_offset_vec, &d0_u8);
+
+ vst1_u8(d_u8, d0_u8);
+ d_u8 += dst8_stride;
+
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 8;
+ dst_ptr += 8;
+ dst8_ptr += 8;
+ width -= 8;
+ } while (width != 0);
+ }
+}
+
+static INLINE void dist_wtd_convolve_y_6tap_avg_neon(
+ const uint8_t *src_ptr, int src_stride, uint8_t *dst8_ptr,
+ const int dst8_stride, int w, int h, const int16x8_t y_filter,
+ ConvolveParams *conv_params) {
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int width = w;
+
+ if (w == 4 || h == 4) {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ uint8x8_t t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ uint8x8_t t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ uint8x8_t t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ uint8x8_t t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+ uint8x8_t t4 = load_unaligned_u8_4x1(s + 4 * src_stride);
+
+ int16x4_t s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+ int16x4_t s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t4)));
+
+ s += 5 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+
+ uint16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d1 = convolve6_4_y(s1, s2, s3, s4, s5, s6, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d2 = convolve6_4_y(s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d3 = convolve6_4_y(s3, s4, s5, s6, s7, s8, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ uint16x4_t dd0, dd1, dd2, dd3;
+ load_u16_4x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d01, d23;
+ compute_basic_avg_4x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3,
+ round_offset_vec, &d01, &d23);
+
+ store_u8x4_strided_x2(d_u8 + 0 * dst8_stride, dst8_stride, d01);
+ store_u8x4_strided_x2(d_u8 + 2 * dst8_stride, dst8_stride, d23);
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s += 4 * src_stride;
+ d += 4 * dst_stride;
+ d_u8 += 4 * dst8_stride;
+ height -= 4;
+#else // !AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s);
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+
+ uint16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ uint16x4_t dd0 = vld1_u16(d);
+
+ uint8x8_t d01;
+ compute_basic_avg_4x1(dd0, d0, vget_low_s16(round_offset_vec), &d01);
+
+ store_u8_4x1(d_u8, d01);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s += src_stride;
+ d += dst_stride;
+ d_u8 += dst8_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 4;
+ dst_ptr += 4;
+ dst8_ptr += 4;
+ width -= 4;
+ } while (width != 0);
+ } else {
+ do {
+ const uint8_t *s = src_ptr + (5 * src_stride);
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ uint8x8_t t0, t1, t2, t3, t4;
+ load_u8_8x5(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+
+ do {
+#if AOM_ARCH_AARCH64
+ uint8x8_t t5, t6, t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ uint16x8_t d0 =
+ convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter, round_offset_vec);
+ uint16x8_t d1 =
+ convolve6_8_y(s1, s2, s3, s4, s5, s6, y_filter, round_offset_vec);
+ uint16x8_t d2 =
+ convolve6_8_y(s2, s3, s4, s5, s6, s7, y_filter, round_offset_vec);
+ uint16x8_t d3 =
+ convolve6_8_y(s3, s4, s5, s6, s7, s8, y_filter, round_offset_vec);
+ uint16x8_t d4 =
+ convolve6_8_y(s4, s5, s6, s7, s8, s9, y_filter, round_offset_vec);
+ uint16x8_t d5 =
+ convolve6_8_y(s5, s6, s7, s8, s9, s10, y_filter, round_offset_vec);
+ uint16x8_t d6 =
+ convolve6_8_y(s6, s7, s8, s9, s10, s11, y_filter, round_offset_vec);
+ uint16x8_t d7 = convolve6_8_y(s7, s8, s9, s10, s11, s12, y_filter,
+ round_offset_vec);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_basic_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3,
+ round_offset_vec, &d0_u8, &d1_u8, &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+ d_u8 += 4 * dst8_stride;
+
+ uint16x8_t dd4, dd5, dd6, dd7;
+ load_u16_8x4(d + 4 * dst_stride, dst_stride, &dd4, &dd5, &dd6, &dd7);
+
+ uint8x8_t d4_u8, d5_u8, d6_u8, d7_u8;
+ compute_basic_avg_8x4(dd4, dd5, dd6, dd7, d4, d5, d6, d7,
+ round_offset_vec, &d4_u8, &d5_u8, &d6_u8, &d7_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d4_u8, d5_u8, d6_u8, d7_u8);
+ d_u8 += 4 * dst8_stride;
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s += 8 * src_stride;
+ d += 8 * dst_stride;
+ height -= 8;
+#else // !AOM_ARCH_AARCH64
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+
+ uint16x8_t d0 =
+ convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter, round_offset_vec);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+
+ uint16x8_t dd0 = vld1q_u16(d);
+
+ uint8x8_t d0_u8;
+ compute_basic_avg_8x1(dd0, d0, round_offset_vec, &d0_u8);
+
+ vst1_u8(d_u8, d0_u8);
+ d_u8 += dst8_stride;
+
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 8;
+ dst_ptr += 8;
+ dst8_ptr += 8;
+ width -= 8;
+ } while (width != 0);
+ }
+}
+
+static INLINE void dist_wtd_convolve_y_6tap_neon(const uint8_t *src_ptr,
+ int src_stride, int w, int h,
+ const int16x8_t y_filter,
+ ConvolveParams *conv_params) {
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int width = w;
+
+ if (w == 4 || h == 4) {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ int height = h;
+
+ uint8x8_t t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ uint8x8_t t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ uint8x8_t t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ uint8x8_t t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+ uint8x8_t t4 = load_unaligned_u8_4x1(s + 4 * src_stride);
+
+ int16x4_t s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+ int16x4_t s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t4)));
+
+ s += 5 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+
+ uint16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d1 = convolve6_4_y(s1, s2, s3, s4, s5, s6, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d2 = convolve6_4_y(s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d3 = convolve6_4_y(s3, s4, s5, s6, s7, s8, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ store_u16_4x4(d, dst_stride, d0, d1, d2, d3);
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s += 4 * src_stride;
+ d += 4 * dst_stride;
+ height -= 4;
+#else // !AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s);
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+
+ uint16x4_t d0 = convolve6_4_y(s0, s1, s2, s3, s4, s5, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ vst1_u16(d, d0);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 4;
+ dst_ptr += 4;
+ width -= 4;
+ } while (width != 0);
+ } else {
+ do {
+ const uint8_t *s = src_ptr + (5 * src_stride);
+ CONV_BUF_TYPE *d = dst_ptr;
+ int height = h;
+
+ uint8x8_t t0, t1, t2, t3, t4;
+ load_u8_8x5(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+
+ do {
+#if AOM_ARCH_AARCH64
+ uint8x8_t t5, t6, t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ uint16x8_t d0 =
+ convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter, round_offset_vec);
+ uint16x8_t d1 =
+ convolve6_8_y(s1, s2, s3, s4, s5, s6, y_filter, round_offset_vec);
+ uint16x8_t d2 =
+ convolve6_8_y(s2, s3, s4, s5, s6, s7, y_filter, round_offset_vec);
+ uint16x8_t d3 =
+ convolve6_8_y(s3, s4, s5, s6, s7, s8, y_filter, round_offset_vec);
+ uint16x8_t d4 =
+ convolve6_8_y(s4, s5, s6, s7, s8, s9, y_filter, round_offset_vec);
+ uint16x8_t d5 =
+ convolve6_8_y(s5, s6, s7, s8, s9, s10, y_filter, round_offset_vec);
+ uint16x8_t d6 =
+ convolve6_8_y(s6, s7, s8, s9, s10, s11, y_filter, round_offset_vec);
+ uint16x8_t d7 = convolve6_8_y(s7, s8, s9, s10, s11, s12, y_filter,
+ round_offset_vec);
+
+ store_u16_8x8(d, dst_stride, d0, d1, d2, d3, d4, d5, d6, d7);
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s += 8 * src_stride;
+ d += 8 * dst_stride;
+ height -= 8;
+#else // !AOM_ARCH_AARCH64
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+
+ uint16x8_t d0 =
+ convolve6_8_y(s0, s1, s2, s3, s4, s5, y_filter, round_offset_vec);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+
+ vst1q_u16(d, d0);
+
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 8;
+ dst_ptr += 8;
+ width -= 8;
+ } while (width != 0);
+ }
+}
+
+static INLINE uint16x4_t convolve8_4_y(const int16x4_t s0, const int16x4_t s1,
+ const int16x4_t s2, const int16x4_t s3,
+ const int16x4_t s4, const int16x4_t s5,
+ const int16x4_t s6, const int16x4_t s7,
+ const int16x8_t y_filter,
+ const int16x4_t round_offset) {
+ const int16x4_t y_filter_0_3 = vget_low_s16(y_filter);
+ const int16x4_t y_filter_4_7 = vget_high_s16(y_filter);
+
+ int16x4_t sum = vmul_lane_s16(s0, y_filter_0_3, 0);
+ sum = vmla_lane_s16(sum, s1, y_filter_0_3, 1);
+ sum = vmla_lane_s16(sum, s2, y_filter_0_3, 2);
+ sum = vmla_lane_s16(sum, s3, y_filter_0_3, 3);
+ sum = vmla_lane_s16(sum, s4, y_filter_4_7, 0);
+ sum = vmla_lane_s16(sum, s5, y_filter_4_7, 1);
+ sum = vmla_lane_s16(sum, s6, y_filter_4_7, 2);
+ sum = vmla_lane_s16(sum, s7, y_filter_4_7, 3);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ int16x4_t res = vrsra_n_s16(round_offset, sum, ROUND0_BITS - 1);
+ return vreinterpret_u16_s16(res);
+}
+
+static INLINE uint16x8_t convolve8_8_y(const int16x8_t s0, const int16x8_t s1,
+ const int16x8_t s2, const int16x8_t s3,
+ const int16x8_t s4, const int16x8_t s5,
+ const int16x8_t s6, const int16x8_t s7,
+ const int16x8_t y_filter,
+ const int16x8_t round_offset) {
+ const int16x4_t y_filter_0_3 = vget_low_s16(y_filter);
+ const int16x4_t y_filter_4_7 = vget_high_s16(y_filter);
+
+ int16x8_t sum = vmulq_lane_s16(s0, y_filter_0_3, 0);
+ sum = vmlaq_lane_s16(sum, s1, y_filter_0_3, 1);
+ sum = vmlaq_lane_s16(sum, s2, y_filter_0_3, 2);
+ sum = vmlaq_lane_s16(sum, s3, y_filter_0_3, 3);
+ sum = vmlaq_lane_s16(sum, s4, y_filter_4_7, 0);
+ sum = vmlaq_lane_s16(sum, s5, y_filter_4_7, 1);
+ sum = vmlaq_lane_s16(sum, s6, y_filter_4_7, 2);
+ sum = vmlaq_lane_s16(sum, s7, y_filter_4_7, 3);
+
+ // We halved the convolution filter values so -1 from the right shift.
+ int16x8_t res = vrsraq_n_s16(round_offset, sum, ROUND0_BITS - 1);
+ return vreinterpretq_u16_s16(res);
+}
+
+static INLINE void dist_wtd_convolve_y_8tap_dist_wtd_avg_neon(
+ const uint8_t *src_ptr, int src_stride, uint8_t *dst8_ptr,
+ const int dst8_stride, int w, int h, const int16x8_t y_filter,
+ ConvolveParams *conv_params) {
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ const uint16_t fwd_offset = conv_params->fwd_offset;
+ const uint16_t bck_offset = conv_params->bck_offset;
+
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int width = w;
+
+ if (w == 4 || h == 4) {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+
+ uint8x8_t t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ uint8x8_t t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ uint8x8_t t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ uint8x8_t t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+ uint8x8_t t4 = load_unaligned_u8_4x1(s + 4 * src_stride);
+ uint8x8_t t5 = load_unaligned_u8_4x1(s + 5 * src_stride);
+ uint8x8_t t6 = load_unaligned_u8_4x1(s + 6 * src_stride);
+
+ int16x4_t s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+ int16x4_t s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t4)));
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t5)));
+ int16x4_t s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t6)));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+
+ s += 7 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s10 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+
+ uint16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d1 = convolve8_4_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d2 = convolve8_4_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d3 = convolve8_4_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+
+ __builtin_prefetch(d_u8 + 0 * dst8_stride);
+ __builtin_prefetch(d_u8 + 1 * dst8_stride);
+ __builtin_prefetch(d_u8 + 2 * dst8_stride);
+ __builtin_prefetch(d_u8 + 3 * dst8_stride);
+
+ uint16x4_t dd0, dd1, dd2, dd3;
+ load_u16_4x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d01, d23;
+ compute_dist_wtd_avg_4x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3, fwd_offset,
+ bck_offset, round_offset_vec, &d01, &d23);
+
+ store_u8x4_strided_x2(d_u8 + 0 * dst8_stride, dst8_stride, d01);
+ store_u8x4_strided_x2(d_u8 + 2 * dst8_stride, dst8_stride, d23);
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ s += 4 * src_stride;
+ d += 4 * dst_stride;
+ d_u8 += 4 * dst8_stride;
+ height -= 4;
+#else // !AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s);
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+
+ uint16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ __builtin_prefetch(d);
+
+ uint16x4_t dd0 = vld1_u16(d);
+
+ uint8x8_t d01;
+ compute_dist_wtd_avg_4x1(dd0, d0, fwd_offset, bck_offset,
+ vget_low_s16(round_offset_vec), &d01);
+
+ store_u8_4x1(d_u8, d01);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+ s += src_stride;
+ d += dst_stride;
+ d_u8 += dst8_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 4;
+ dst_ptr += 4;
+ dst8_ptr += 4;
+ width -= 4;
+ } while (width != 0);
+ } else {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+ __builtin_prefetch(s + 4 * src_stride);
+ __builtin_prefetch(s + 5 * src_stride);
+ __builtin_prefetch(s + 6 * src_stride);
+ __builtin_prefetch(s + 7 * src_stride);
+
+ uint8x8_t t0, t1, t2, t3, t4, t5, t6;
+ load_u8_8x7(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ s += 7 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ uint8x8_t t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ __builtin_prefetch(dst_ptr + 0 * dst_stride);
+ __builtin_prefetch(dst_ptr + 1 * dst_stride);
+ __builtin_prefetch(dst_ptr + 2 * dst_stride);
+ __builtin_prefetch(dst_ptr + 3 * dst_stride);
+
+ uint16x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_offset_vec);
+ uint16x8_t d1 = convolve8_8_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+ round_offset_vec);
+ uint16x8_t d2 = convolve8_8_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+ round_offset_vec);
+ uint16x8_t d3 = convolve8_8_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+ round_offset_vec);
+ uint16x8_t d4 = convolve8_8_y(s4, s5, s6, s7, s8, s9, s10, s11,
+ y_filter, round_offset_vec);
+ uint16x8_t d5 = convolve8_8_y(s5, s6, s7, s8, s9, s10, s11, s12,
+ y_filter, round_offset_vec);
+ uint16x8_t d6 = convolve8_8_y(s6, s7, s8, s9, s10, s11, s12, s13,
+ y_filter, round_offset_vec);
+ uint16x8_t d7 = convolve8_8_y(s7, s8, s9, s10, s11, s12, s13, s14,
+ y_filter, round_offset_vec);
+
+ __builtin_prefetch(d + 0 * dst8_stride);
+ __builtin_prefetch(d + 1 * dst8_stride);
+ __builtin_prefetch(d + 2 * dst8_stride);
+ __builtin_prefetch(d + 3 * dst8_stride);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_dist_wtd_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3, fwd_offset,
+ bck_offset, round_offset_vec, &d0_u8, &d1_u8,
+ &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+ d_u8 += 4 * dst8_stride;
+
+ uint16x8_t dd4, dd5, dd6, dd7;
+ load_u16_8x4(d + 4 * dst_stride, dst_stride, &dd4, &dd5, &dd6, &dd7);
+
+ uint8x8_t d4_u8, d5_u8, d6_u8, d7_u8;
+ compute_dist_wtd_avg_8x4(dd4, dd5, dd6, dd7, d4, d5, d6, d7, fwd_offset,
+ bck_offset, round_offset_vec, &d4_u8, &d5_u8,
+ &d6_u8, &d7_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d4_u8, d5_u8, d6_u8, d7_u8);
+ d_u8 += 4 * dst8_stride;
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8 * src_stride;
+ d += 8 * dst_stride;
+ height -= 8;
+#else // !AOM_ARCH_AARCH64
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+
+ __builtin_prefetch(dst_ptr);
+
+ uint16x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_offset_vec);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+
+ __builtin_prefetch(d);
+
+ uint16x8_t dd0 = vld1q_u16(d);
+
+ uint8x8_t d0_u8;
+ compute_dist_wtd_avg_8x1(dd0, d0, fwd_offset, bck_offset,
+ round_offset_vec, &d0_u8);
+
+ vst1_u8(d_u8, d0_u8);
+ d_u8 += dst8_stride;
+
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 8;
+ dst_ptr += 8;
+ dst8_ptr += 8;
+ width -= 8;
+ } while (width != 0);
+ }
+}
+
+static INLINE void dist_wtd_convolve_y_8tap_avg_neon(
+ const uint8_t *src_ptr, int src_stride, uint8_t *dst8_ptr,
+ const int dst8_stride, int w, int h, const int16x8_t y_filter,
+ ConvolveParams *conv_params) {
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int width = w;
+
+ if (w == 4 || h == 4) {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+
+ uint8x8_t t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ uint8x8_t t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ uint8x8_t t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ uint8x8_t t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+ uint8x8_t t4 = load_unaligned_u8_4x1(s + 4 * src_stride);
+ uint8x8_t t5 = load_unaligned_u8_4x1(s + 5 * src_stride);
+ uint8x8_t t6 = load_unaligned_u8_4x1(s + 6 * src_stride);
+
+ int16x4_t s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+ int16x4_t s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t4)));
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t5)));
+ int16x4_t s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t6)));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+
+ s += 7 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s10 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+
+ uint16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d1 = convolve8_4_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d2 = convolve8_4_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d3 = convolve8_4_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+
+ __builtin_prefetch(d_u8 + 0 * dst8_stride);
+ __builtin_prefetch(d_u8 + 1 * dst8_stride);
+ __builtin_prefetch(d_u8 + 2 * dst8_stride);
+ __builtin_prefetch(d_u8 + 3 * dst8_stride);
+
+ uint16x4_t dd0, dd1, dd2, dd3;
+ load_u16_4x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d01, d23;
+ compute_basic_avg_4x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3,
+ round_offset_vec, &d01, &d23);
+
+ store_u8x4_strided_x2(d_u8 + 0 * dst8_stride, dst8_stride, d01);
+ store_u8x4_strided_x2(d_u8 + 2 * dst8_stride, dst8_stride, d23);
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ s += 4 * src_stride;
+ d += 4 * dst_stride;
+ d_u8 += 4 * dst8_stride;
+ height -= 4;
+#else // !AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s);
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+
+ uint16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ __builtin_prefetch(d);
+
+ uint16x4_t dd0 = vld1_u16(d);
+
+ uint8x8_t d01;
+ compute_basic_avg_4x1(dd0, d0, vget_low_s16(round_offset_vec), &d01);
+
+ store_u8_4x1(d_u8, d01);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+ s += src_stride;
+ d += dst_stride;
+ d_u8 += dst8_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 4;
+ dst_ptr += 4;
+ dst8_ptr += 4;
+ width -= 4;
+ } while (width != 0);
+ } else {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ uint8_t *d_u8 = dst8_ptr;
+ int height = h;
+
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+ __builtin_prefetch(s + 4 * src_stride);
+ __builtin_prefetch(s + 5 * src_stride);
+ __builtin_prefetch(s + 6 * src_stride);
+ __builtin_prefetch(s + 7 * src_stride);
+
+ uint8x8_t t0, t1, t2, t3, t4, t5, t6;
+ load_u8_8x7(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ s += 7 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ uint8x8_t t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ __builtin_prefetch(dst_ptr + 0 * dst_stride);
+ __builtin_prefetch(dst_ptr + 1 * dst_stride);
+ __builtin_prefetch(dst_ptr + 2 * dst_stride);
+ __builtin_prefetch(dst_ptr + 3 * dst_stride);
+
+ uint16x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_offset_vec);
+ uint16x8_t d1 = convolve8_8_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+ round_offset_vec);
+ uint16x8_t d2 = convolve8_8_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+ round_offset_vec);
+ uint16x8_t d3 = convolve8_8_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+ round_offset_vec);
+ uint16x8_t d4 = convolve8_8_y(s4, s5, s6, s7, s8, s9, s10, s11,
+ y_filter, round_offset_vec);
+ uint16x8_t d5 = convolve8_8_y(s5, s6, s7, s8, s9, s10, s11, s12,
+ y_filter, round_offset_vec);
+ uint16x8_t d6 = convolve8_8_y(s6, s7, s8, s9, s10, s11, s12, s13,
+ y_filter, round_offset_vec);
+ uint16x8_t d7 = convolve8_8_y(s7, s8, s9, s10, s11, s12, s13, s14,
+ y_filter, round_offset_vec);
+
+ __builtin_prefetch(d + 0 * dst8_stride);
+ __builtin_prefetch(d + 1 * dst8_stride);
+ __builtin_prefetch(d + 2 * dst8_stride);
+ __builtin_prefetch(d + 3 * dst8_stride);
+
+ uint16x8_t dd0, dd1, dd2, dd3;
+ load_u16_8x4(d, dst_stride, &dd0, &dd1, &dd2, &dd3);
+
+ uint8x8_t d0_u8, d1_u8, d2_u8, d3_u8;
+ compute_basic_avg_8x4(dd0, dd1, dd2, dd3, d0, d1, d2, d3,
+ round_offset_vec, &d0_u8, &d1_u8, &d2_u8, &d3_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d0_u8, d1_u8, d2_u8, d3_u8);
+ d_u8 += 4 * dst8_stride;
+
+ uint16x8_t dd4, dd5, dd6, dd7;
+ load_u16_8x4(d + 4 * dst_stride, dst_stride, &dd4, &dd5, &dd6, &dd7);
+
+ uint8x8_t d4_u8, d5_u8, d6_u8, d7_u8;
+ compute_basic_avg_8x4(dd4, dd5, dd6, dd7, d4, d5, d6, d7,
+ round_offset_vec, &d4_u8, &d5_u8, &d6_u8, &d7_u8);
+
+ store_u8_8x4(d_u8, dst8_stride, d4_u8, d5_u8, d6_u8, d7_u8);
+ d_u8 += 4 * dst8_stride;
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8 * src_stride;
+ d += 8 * dst_stride;
+ height -= 8;
+#else // !AOM_ARCH_AARCH64
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+
+ __builtin_prefetch(dst_ptr);
+
+ uint16x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_offset_vec);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+
+ __builtin_prefetch(d);
+
+ uint16x8_t dd0 = vld1q_u16(d);
+
+ uint8x8_t d0_u8;
+ compute_basic_avg_8x1(dd0, d0, round_offset_vec, &d0_u8);
+
+ vst1_u8(d_u8, d0_u8);
+ d_u8 += dst8_stride;
+
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 8;
+ dst_ptr += 8;
+ dst8_ptr += 8;
+ width -= 8;
+ } while (width != 0);
+ }
+}
+
+static INLINE void dist_wtd_convolve_y_8tap_neon(const uint8_t *src_ptr,
+ int src_stride, int w, int h,
+ const int16x8_t y_filter,
+ ConvolveParams *conv_params) {
+ const int bd = 8;
+ const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS;
+ const int16_t round_offset = (1 << (offset_bits - COMPOUND_ROUND1_BITS)) +
+ (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1));
+ const int16x8_t round_offset_vec = vdupq_n_s16(round_offset);
+
+ CONV_BUF_TYPE *dst_ptr = conv_params->dst;
+ const int dst_stride = conv_params->dst_stride;
+ int width = w;
+
+ if (w == 4 || h == 4) {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ int height = h;
+
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+
+ uint8x8_t t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ uint8x8_t t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ uint8x8_t t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ uint8x8_t t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+ uint8x8_t t4 = load_unaligned_u8_4x1(s + 4 * src_stride);
+ uint8x8_t t5 = load_unaligned_u8_4x1(s + 5 * src_stride);
+ uint8x8_t t6 = load_unaligned_u8_4x1(s + 6 * src_stride);
+
+ int16x4_t s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s2 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s3 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+ int16x4_t s4 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t4)));
+ int16x4_t s5 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t5)));
+ int16x4_t s6 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t6)));
+
+ __builtin_prefetch(d + 0 * dst_stride);
+ __builtin_prefetch(d + 1 * dst_stride);
+ __builtin_prefetch(d + 2 * dst_stride);
+ __builtin_prefetch(d + 3 * dst_stride);
+
+ s += 7 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s + 0 * src_stride);
+ t1 = load_unaligned_u8_4x1(s + 1 * src_stride);
+ t2 = load_unaligned_u8_4x1(s + 2 * src_stride);
+ t3 = load_unaligned_u8_4x1(s + 3 * src_stride);
+
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+ int16x4_t s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t1)));
+ int16x4_t s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t2)));
+ int16x4_t s10 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t3)));
+
+ uint16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d1 = convolve8_4_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d2 = convolve8_4_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+ vget_low_s16(round_offset_vec));
+ uint16x4_t d3 = convolve8_4_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ store_u16_4x4(d, dst_stride, d0, d1, d2, d3);
+
+ s0 = s4;
+ s1 = s5;
+ s2 = s6;
+ s3 = s7;
+ s4 = s8;
+ s5 = s9;
+ s6 = s10;
+ s += 4 * src_stride;
+ d += 4 * dst_stride;
+ height -= 4;
+#else // !AOM_ARCH_AARCH64
+ t0 = load_unaligned_u8_4x1(s);
+ int16x4_t s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(t0)));
+
+ uint16x4_t d0 = convolve8_4_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ vget_low_s16(round_offset_vec));
+
+ vst1_u16(d, d0);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 4;
+ dst_ptr += 4;
+ width -= 4;
+ } while (width != 0);
+ } else {
+ do {
+ const uint8_t *s = src_ptr;
+ CONV_BUF_TYPE *d = dst_ptr;
+ int height = h;
+
+ __builtin_prefetch(s + 0 * src_stride);
+ __builtin_prefetch(s + 1 * src_stride);
+ __builtin_prefetch(s + 2 * src_stride);
+ __builtin_prefetch(s + 3 * src_stride);
+ __builtin_prefetch(s + 4 * src_stride);
+ __builtin_prefetch(s + 5 * src_stride);
+ __builtin_prefetch(s + 6 * src_stride);
+ __builtin_prefetch(s + 7 * src_stride);
+
+ uint8x8_t t0, t1, t2, t3, t4, t5, t6;
+ load_u8_8x7(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6);
+
+ int16x8_t s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s1 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s2 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s3 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s4 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s5 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s6 = vreinterpretq_s16_u16(vmovl_u8(t6));
+
+ s += 7 * src_stride;
+
+ do {
+#if AOM_ARCH_AARCH64
+ uint8x8_t t7;
+ load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
+
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+ int16x8_t s8 = vreinterpretq_s16_u16(vmovl_u8(t1));
+ int16x8_t s9 = vreinterpretq_s16_u16(vmovl_u8(t2));
+ int16x8_t s10 = vreinterpretq_s16_u16(vmovl_u8(t3));
+ int16x8_t s11 = vreinterpretq_s16_u16(vmovl_u8(t4));
+ int16x8_t s12 = vreinterpretq_s16_u16(vmovl_u8(t5));
+ int16x8_t s13 = vreinterpretq_s16_u16(vmovl_u8(t6));
+ int16x8_t s14 = vreinterpretq_s16_u16(vmovl_u8(t7));
+
+ __builtin_prefetch(dst_ptr + 0 * dst_stride);
+ __builtin_prefetch(dst_ptr + 1 * dst_stride);
+ __builtin_prefetch(dst_ptr + 2 * dst_stride);
+ __builtin_prefetch(dst_ptr + 3 * dst_stride);
+
+ uint16x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_offset_vec);
+ uint16x8_t d1 = convolve8_8_y(s1, s2, s3, s4, s5, s6, s7, s8, y_filter,
+ round_offset_vec);
+ uint16x8_t d2 = convolve8_8_y(s2, s3, s4, s5, s6, s7, s8, s9, y_filter,
+ round_offset_vec);
+ uint16x8_t d3 = convolve8_8_y(s3, s4, s5, s6, s7, s8, s9, s10, y_filter,
+ round_offset_vec);
+ uint16x8_t d4 = convolve8_8_y(s4, s5, s6, s7, s8, s9, s10, s11,
+ y_filter, round_offset_vec);
+ uint16x8_t d5 = convolve8_8_y(s5, s6, s7, s8, s9, s10, s11, s12,
+ y_filter, round_offset_vec);
+ uint16x8_t d6 = convolve8_8_y(s6, s7, s8, s9, s10, s11, s12, s13,
+ y_filter, round_offset_vec);
+ uint16x8_t d7 = convolve8_8_y(s7, s8, s9, s10, s11, s12, s13, s14,
+ y_filter, round_offset_vec);
+
+ store_u16_8x8(d, dst_stride, d0, d1, d2, d3, d4, d5, d6, d7);
+
+ s0 = s8;
+ s1 = s9;
+ s2 = s10;
+ s3 = s11;
+ s4 = s12;
+ s5 = s13;
+ s6 = s14;
+ s += 8 * src_stride;
+ d += 8 * dst_stride;
+ height -= 8;
+#else // !AOM_ARCH_AARCH64
+ int16x8_t s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
+
+ __builtin_prefetch(dst_ptr);
+
+ uint16x8_t d0 = convolve8_8_y(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+ round_offset_vec);
+
+ s0 = s1;
+ s1 = s2;
+ s2 = s3;
+ s3 = s4;
+ s4 = s5;
+ s5 = s6;
+ s6 = s7;
+
+ vst1q_u16(d, d0);
+
+ s += src_stride;
+ d += dst_stride;
+ height--;
+#endif // AOM_ARCH_AARCH64
+ } while (height != 0);
+ src_ptr += 8;
+ dst_ptr += 8;
+ width -= 8;
+ } while (width != 0);
+ }
+}
+
+void av1_dist_wtd_convolve_y_neon(const uint8_t *src, int src_stride,
+ uint8_t *dst8, int dst8_stride, int w, int h,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_y_qn,
+ ConvolveParams *conv_params) {
+ assert(w % 4 == 0);
+ assert(h % 4 == 0);
+
+ // Vertical filter.
+ const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel(
+ filter_params_y, subpel_y_qn & SUBPEL_MASK);
+ // Filter values are even, so downshift by 1 to reduce intermediate
+ // precision requirements.
+ const int16x8_t y_filter = vshrq_n_s16(vld1q_s16(y_filter_ptr), 1);
+
+ const int vert_offset = filter_params_y->taps / 2 - 1;
+ const uint8_t *src_ptr = src - (vert_offset * src_stride);
+
+ if (get_filter_tap(filter_params_y, subpel_y_qn) <= 6) {
+ if (conv_params->do_average) {
+ if (UNLIKELY(conv_params->use_dist_wtd_comp_avg)) {
+ dist_wtd_convolve_y_6tap_dist_wtd_avg_neon(
+ src_ptr + src_stride, src_stride, dst8, dst8_stride, w, h, y_filter,
+ conv_params);
+ } else {
+ dist_wtd_convolve_y_6tap_avg_neon(src_ptr + src_stride, src_stride,
+ dst8, dst8_stride, w, h, y_filter,
+ conv_params);
+ }
+ } else {
+ dist_wtd_convolve_y_6tap_neon(src_ptr + src_stride, src_stride, w, h,
+ y_filter, conv_params);
+ }
+ } else {
+ if (conv_params->do_average) {
+ if (UNLIKELY(conv_params->use_dist_wtd_comp_avg)) {
+ dist_wtd_convolve_y_8tap_dist_wtd_avg_neon(src_ptr, src_stride, dst8,
+ dst8_stride, w, h, y_filter,
+ conv_params);
+ } else {
+ dist_wtd_convolve_y_8tap_avg_neon(src_ptr, src_stride, dst8,
+ dst8_stride, w, h, y_filter,
+ conv_params);
+ }
+ } else {
+ dist_wtd_convolve_y_8tap_neon(src_ptr, src_stride, w, h, y_filter,
+ conv_params);
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-27 07:35:17 +0000